src/empathy-call-window.c

   1 /*
   2  * empathy-call-window.c - Source for EmpathyCallWindow
   3  * Copyright (C) 2008-2011 Collabora Ltd.
   4  * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 #include <math.h>
  27
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gst/gst.h>
  30 #include <gtk/gtk.h>
  31 #include <glib/gi18n.h>
  32
  33 #include <clutter/clutter.h>
  34 #include <clutter-gtk/clutter-gtk.h>
  35 #include <clutter-gst/clutter-gst.h>
  36
  37 #include <telepathy-glib/util.h>
  38 #include <telepathy-farstream/telepathy-farstream.h>
  39 #include <telepathy-glib/util.h>
  40
  41 #include <farstream/fs-element-added-notifier.h>
  42 #include <farstream/fs-utils.h>
  43
  44 #include <libempathy/empathy-camera-monitor.h>
  45 #include <libempathy/empathy-gsettings.h>
  46 #include <libempathy/empathy-tp-contact-factory.h>
  47 #include <libempathy/empathy-request-util.h>
  48 #include <libempathy/empathy-utils.h>
  49
  50 #include <libempathy-gtk/empathy-avatar-image.h>
  51 #include <libempathy-gtk/empathy-dialpad-widget.h>
  52 #include <libempathy-gtk/empathy-ui-utils.h>
  53 #include <libempathy-gtk/empathy-sound-manager.h>
  54 #include <libempathy-gtk/empathy-geometry.h>
  55 #include <libempathy-gtk/empathy-images.h>
  56 #include <libempathy-gtk/empathy-call-utils.h>
  57
  58 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  59 #include <libempathy/empathy-debug.h>
  60
  61 #include "empathy-call-window.h"
  62 #include "empathy-call-window-fullscreen.h"
  63 #include "empathy-call-factory.h"
  64 #include "empathy-video-widget.h"
  65 #include "empathy-about-dialog.h"
  66 #include "empathy-audio-src.h"
  67 #include "empathy-audio-sink.h"
  68 #include "empathy-video-src.h"
  69 #include "empathy-mic-menu.h"
  70 #include "empathy-preferences.h"
  71 #include "empathy-rounded-actor.h"
  72 #include "empathy-rounded-rectangle.h"
  73 #include "empathy-rounded-texture.h"
  74 #include "empathy-camera-menu.h"
  75
  76 #define CONTENT_HBOX_BORDER_WIDTH 6
  77 #define CONTENT_HBOX_SPACING 3
  78 #define CONTENT_HBOX_CHILDREN_PACKING_PADDING 3
  79
  80 #define SELF_VIDEO_SECTION_WIDTH 120
  81 #define SELF_VIDEO_SECTION_HEIGHT 90
  82 #define SELF_VIDEO_SECTION_MARGIN 2
  83 #define SELF_VIDEO_SECTION_BORDER SELF_VIDEO_SECTION_MARGIN*2
  84
  85 #define FLOATING_TOOLBAR_OPACITY 192
  86 #define FLOATING_TOOLBAR_WIDTH 280
  87 #define FLOATING_TOOLBAR_HEIGHT 36
  88 #define FLOATING_TOOLBAR_SPACING 20
  89
  90 /* The avatar's default width and height are set to the same value because we
  91    want a square icon. */
  92 #define REMOTE_CONTACT_AVATAR_DEFAULT_WIDTH EMPATHY_VIDEO_WIDGET_DEFAULT_HEIGHT
  93 #define REMOTE_CONTACT_AVATAR_DEFAULT_HEIGHT \
  94   EMPATHY_VIDEO_WIDGET_DEFAULT_HEIGHT
  95
  96 #define SMALL_TOOLBAR_SIZE 36
  97
  98 /* If an video input error occurs, the error message will start with "v4l" */
  99 #define VIDEO_INPUT_ERROR_PREFIX "v4l"
 100
 101 /* The time interval in milliseconds between 2 outgoing rings */
 102 #define MS_BETWEEN_RING 500
 103
 104 /* The roundedness of preview box and placeholders */
 105 #define PREVIEW_ROUND_FACTOR 16
 106
 107 G_DEFINE_TYPE(EmpathyCallWindow, empathy_call_window, GTK_TYPE_WINDOW)
 108
 109 enum {
 110   PROP_CALL_HANDLER = 1,
 111 };
 112
 113 typedef enum {
 114   RINGING,       /* Incoming call */
 115   CONNECTING,    /* Outgoing call */
 116   CONNECTED,     /* Connected */
 117   HELD,          /* Connected, but on hold */
 118   DISCONNECTED,  /* Disconnected */
 119   REDIALING      /* Redialing (special case of CONNECTING) */
 120 } CallState;
 121
 122 typedef enum {
 123   CAMERA_STATE_OFF = 0,
 124   CAMERA_STATE_ON,
 125 } CameraState;
 126
 127 typedef enum {
 128   PREVIEW_POS_NONE,
 129   PREVIEW_POS_TOP_LEFT,
 130   PREVIEW_POS_TOP_RIGHT,
 131   PREVIEW_POS_BOTTOM_LEFT,
 132   PREVIEW_POS_BOTTOM_RIGHT,
 133 } PreviewPosition;
 134
 135 struct _EmpathyCallWindowPriv
 136 {
 137   gboolean dispose_has_run;
 138   EmpathyCallHandler *handler;
 139
 140   EmpathyContact *contact;
 141
 142   EmpathyCameraMonitor *camera_monitor;
 143
 144   guint call_state;
 145   gboolean outgoing;
 146
 147   GtkUIManager *ui_manager;
 148   GtkWidget *errors_vbox;
 149   /* widget displays the video received from the remote user. This widget is
 150    * alive only during call. */
 151   ClutterActor *video_output;
 152   ClutterActor *video_preview;
 153   ClutterActor *drag_preview;
 154   ClutterActor *preview_shown_button;
 155   ClutterActor *preview_hidden_button;
 156   ClutterActor *preview_rectangle1;
 157   ClutterActor *preview_rectangle2;
 158   ClutterActor *preview_rectangle3;
 159   ClutterActor *preview_rectangle4;
 160   ClutterActor *preview_rectangle_box1;
 161   ClutterActor *preview_rectangle_box2;
 162   ClutterActor *preview_rectangle_box3;
 163   ClutterActor *preview_rectangle_box4;
 164   ClutterActor *preview_spinner_actor;
 165   GtkWidget *preview_spinner_widget;
 166   GtkWidget *video_container;
 167   GtkWidget *remote_user_avatar_widget;
 168   GtkWidget *remote_user_avatar_toolbar;
 169   GtkWidget *remote_user_name_toolbar;
 170   GtkWidget *status_label;
 171   GtkWidget *hangup_button;
 172   GtkWidget *audio_call_button;
 173   GtkWidget *video_call_button;
 174   GtkWidget *mic_button;
 175   GtkWidget *volume_button;
 176   GtkWidget *camera_button;
 177   GtkWidget *dialpad_button;
 178   GtkWidget *toolbar;
 179   GtkWidget *bottom_toolbar;
 180   ClutterActor *floating_toolbar;
 181   GtkWidget *pane;
 182   GtkAction *menu_fullscreen;
 183   GtkAction *menu_swap_camera;
 184
 185   ClutterState *transitions;
 186
 187   /* The box that contains self and remote avatar and video
 188      input/output. When we redial, we destroy and re-create the box */
 189   ClutterActor *video_box;
 190   ClutterLayoutManager *video_layout;
 191
 192   /* Coordinates of the preview drag event's start. */
 193   PreviewPosition preview_pos;
 194
 195   /* We keep a reference on the hbox which contains the main content so we can
 196      easilly repack everything when toggling fullscreen */
 197   GtkWidget *content_hbox;
 198
 199   /* These are used to accept or reject an incoming call when the status
 200      is RINGING. */
 201   GtkWidget *incoming_call_dialog;
 202   TpCallChannel *pending_channel;
 203   TpChannelDispatchOperation *pending_cdo;
 204   TpAddDispatchOperationContext *pending_context;
 205
 206   gulong video_output_motion_handler_id;
 207   guint bus_message_source_id;
 208
 209   GtkWidget *dtmf_panel;
 210
 211   /* Details vbox */
 212   GtkWidget *details_vbox;
 213   GtkWidget *vcodec_encoding_label;
 214   GtkWidget *acodec_encoding_label;
 215   GtkWidget *vcodec_decoding_label;
 216   GtkWidget *acodec_decoding_label;
 217
 218   GtkWidget *audio_remote_candidate_label;
 219   GtkWidget *audio_local_candidate_label;
 220   GtkWidget *video_remote_candidate_label;
 221   GtkWidget *video_local_candidate_label;
 222   GtkWidget *video_remote_candidate_info_img;
 223   GtkWidget *video_local_candidate_info_img;
 224   GtkWidget *audio_remote_candidate_info_img;
 225   GtkWidget *audio_local_candidate_info_img;
 226
 227   GstElement *video_input;
 228   GstElement *video_preview_sink;
 229   GstElement *video_output_sink;
 230   GstElement *audio_input;
 231   GstElement *audio_output;
 232   gboolean audio_output_added;
 233   GstElement *pipeline;
 234   GstElement *video_tee;
 235
 236   GstElement *funnel;
 237
 238   GList *notifiers;
 239
 240   GTimer *timer;
 241   guint timer_id;
 242
 243   GMutex *lock;
 244   gboolean call_started;
 245   gboolean sending_video;
 246   CameraState camera_state;
 247
 248   EmpathyCallWindowFullscreen *fullscreen;
 249   gboolean is_fullscreen;
 250
 251   gboolean got_video;
 252   guint got_video_src;
 253
 254   guint inactivity_src;
 255
 256   /* Those fields represent the state of the window before it actually was in
 257      fullscreen mode. */
 258   gboolean dialpad_was_visible_before_fs;
 259   gint original_width_before_fs;
 260   gint original_height_before_fs;
 261
 262   gint x, y, w, h, dialpad_width;
 263   gboolean maximized;
 264
 265   /* TRUE if the call should be started when the pipeline is playing */
 266   gboolean start_call_when_playing;
 267   /* TRUE if we requested to set the pipeline in the playing state */
 268   gboolean pipeline_playing;
 269
 270   EmpathySoundManager *sound_mgr;
 271
 272   GSettings *settings;
 273   EmpathyMicMenu *mic_menu;
 274   EmpathyCameraMenu *camera_menu;
 275 };
 276
 277 #define GET_PRIV(o) (EMPATHY_CALL_WINDOW (o)->priv)
 278
 279 static void empathy_call_window_realized_cb (GtkWidget *widget,
 280   EmpathyCallWindow *window);
 281
 282 static gboolean empathy_call_window_delete_cb (GtkWidget *widget,
 283   GdkEvent *event, EmpathyCallWindow *window);
 284
 285 static gboolean empathy_call_window_state_event_cb (GtkWidget *widget,
 286   GdkEventWindowState *event, EmpathyCallWindow *window);
 287
 288 static void empathy_call_window_set_send_video (EmpathyCallWindow *window,
 289   CameraState state);
 290
 291 static void empathy_call_window_hangup_cb (gpointer object,
 292   EmpathyCallWindow *window);
 293
 294 static void empathy_call_window_fullscreen_cb (gpointer object,
 295   EmpathyCallWindow *window);
 296
 297 static void empathy_call_window_fullscreen_toggle (EmpathyCallWindow *window);
 298
 299 static gboolean empathy_call_window_video_button_press_cb (
 300   GtkWidget *video_output, GdkEventButton *event, EmpathyCallWindow *window);
 301
 302 static gboolean empathy_call_window_key_press_cb (GtkWidget *video_output,
 303   GdkEventKey *event, EmpathyCallWindow *window);
 304
 305 static gboolean empathy_call_window_video_output_motion_notify (
 306   GtkWidget *widget, GdkEventMotion *event, EmpathyCallWindow *window);
 307
 308 static void empathy_call_window_video_menu_popup (EmpathyCallWindow *window,
 309   guint button);
 310
 311 static void empathy_call_window_connect_handler (EmpathyCallWindow *self);
 312
 313 static void empathy_call_window_dialpad_cb (GtkToggleToolButton *button,
 314   EmpathyCallWindow *window);
 315
 316 static void empathy_call_window_restart_call (EmpathyCallWindow *window);
 317
 318 static void empathy_call_window_status_message (EmpathyCallWindow *window,
 319   gchar *message);
 320
 321 static gboolean empathy_call_window_bus_message (GstBus *bus,
 322   GstMessage *message, gpointer user_data);
 323
 324 static void
 325 empathy_call_window_show_hangup_button (EmpathyCallWindow *self,
 326     gboolean show)
 327 {
 328   gtk_widget_set_visible (self->priv->hangup_button, show);
 329   gtk_widget_set_visible (self->priv->audio_call_button, !show);
 330   gtk_widget_set_visible (self->priv->video_call_button, !show);
 331 }
 332
 333 static void
 334 empathy_call_window_audio_call_cb (GtkToggleToolButton *button,
 335     EmpathyCallWindow *self)
 336 {
 337   g_object_set (self->priv->handler, "initial-video", FALSE, NULL);
 338   empathy_call_window_restart_call (self);
 339 }
 340
 341 static void
 342 empathy_call_window_video_call_cb (GtkToggleToolButton *button,
 343     EmpathyCallWindow *self)
 344 {
 345   empathy_call_window_set_send_video (self, CAMERA_STATE_ON);
 346   g_object_set (self->priv->handler, "initial-video", TRUE, NULL);
 347   empathy_call_window_restart_call (self);
 348 }
 349
 350 static void
 351 dtmf_start_tone_cb (EmpathyDialpadWidget *dialpad,
 352     TpDTMFEvent event,
 353     EmpathyCallWindow *self)
 354 {
 355   TpCallChannel *call;
 356   gchar tones[2];
 357
 358   g_object_get (self->priv->handler, "call-channel", &call, NULL);
 359
 360   tones[0] = tp_dtmf_event_to_char (event);
 361   tones[1] = '\0';
 362   tp_call_channel_send_tones_async (call, tones, NULL, NULL, NULL);
 363
 364   g_object_unref (call);
 365 }
 366
 367 static void
 368 empathy_call_window_raise_actors (EmpathyCallWindow *self)
 369 {
 370   clutter_actor_raise_top (self->priv->floating_toolbar);
 371
 372   clutter_actor_raise_top (self->priv->preview_rectangle_box1);
 373   clutter_actor_raise_top (self->priv->preview_rectangle_box2);
 374   clutter_actor_raise_top (self->priv->preview_rectangle_box3);
 375   clutter_actor_raise_top (self->priv->preview_rectangle_box4);
 376 }
 377
 378 static void
 379 empathy_call_window_show_video_output (EmpathyCallWindow *self,
 380     gboolean show)
 381 {
 382   if (self->priv->video_output != NULL)
 383     g_object_set (self->priv->video_output, "visible", show, NULL);
 384
 385   gtk_widget_set_visible (self->priv->remote_user_avatar_widget, !show);
 386
 387   empathy_call_window_raise_actors (self);
 388 }
 389
 390 static void
 391 create_video_output_widget (EmpathyCallWindow *self)
 392 {
 393   EmpathyCallWindowPriv *priv = GET_PRIV (self);
 394
 395   g_assert (priv->video_output == NULL);
 396   g_assert (priv->pipeline != NULL);
 397
 398   priv->video_output = clutter_texture_new ();
 399
 400   clutter_texture_set_keep_aspect_ratio (CLUTTER_TEXTURE (priv->video_output),
 401       TRUE);
 402
 403   priv->video_output_sink = gst_element_factory_make ("cluttersink", NULL);
 404   if (priv->video_output_sink == NULL)
 405     g_error ("Missing cluttersink");
 406   else
 407     g_object_set (priv->video_output_sink, "texture", priv->video_output, NULL);
 408
 409   clutter_container_add_actor (CLUTTER_CONTAINER (priv->video_box),
 410       priv->video_output);
 411
 412   gtk_widget_add_events (priv->video_container,
 413       GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK);
 414   g_signal_connect (G_OBJECT (priv->video_container), "button-press-event",
 415       G_CALLBACK (empathy_call_window_video_button_press_cb), self);
 416 }
 417
 418 static void
 419 create_video_input (EmpathyCallWindow *self)
 420 {
 421   EmpathyCallWindowPriv *priv = GET_PRIV (self);
 422
 423   g_assert (priv->video_input == NULL);
 424   priv->video_input = empathy_video_src_new ();
 425   gst_object_ref (priv->video_input);
 426   gst_object_sink (priv->video_input);
 427 }
 428
 429 static gboolean
 430 audio_control_volume_to_element (GBinding *binding,
 431   const GValue *source_value,
 432   GValue *target_value,
 433   gpointer user_data)
 434 {
 435   /* AudioControl volume is 0-255, with -1 for unknown */
 436   gint hv;
 437
 438   hv = g_value_get_int (source_value);
 439   if (hv < 0)
 440     return FALSE;
 441
 442   hv = MIN (hv, 255);
 443   g_value_set_double (target_value, hv/255.0);
 444
 445   return TRUE;
 446 }
 447
 448 static gboolean
 449 element_volume_to_audio_control (GBinding *binding,
 450   const GValue *source_value,
 451   GValue *target_value,
 452   gpointer user_data)
 453 {
 454   gdouble ev;
 455
 456   ev = g_value_get_double (source_value);
 457   ev = CLAMP (ev, 0.0, 1.0);
 458
 459   g_value_set_int (target_value, ev * 255);
 460   return TRUE;
 461 }
 462
 463 static void
 464 create_audio_input (EmpathyCallWindow *self)
 465 {
 466   EmpathyCallWindowPriv *priv = GET_PRIV (self);
 467
 468   g_assert (priv->audio_input == NULL);
 469   priv->audio_input = empathy_audio_src_new ();
 470   gst_object_ref (priv->audio_input);
 471   gst_object_sink (priv->audio_input);
 472
 473   g_object_bind_property (priv->mic_button, "active",
 474     priv->audio_input, "mute",
 475     G_BINDING_BIDIRECTIONAL |
 476       G_BINDING_INVERT_BOOLEAN | G_BINDING_SYNC_CREATE);
 477 }
 478
 479 static void
 480 add_video_preview_to_pipeline (EmpathyCallWindow *self)
 481 {
 482   EmpathyCallWindowPriv *priv = GET_PRIV (self);
 483   GstElement *preview;
 484
 485   g_assert (priv->video_preview != NULL);
 486   g_assert (priv->pipeline != NULL);
 487   g_assert (priv->video_input != NULL);
 488   g_assert (priv->video_tee != NULL);
 489
 490   preview = priv->video_preview_sink;
 491
 492   if (!gst_bin_add (GST_BIN (priv->pipeline), priv->video_input))
 493     {
 494       g_warning ("Could not add video input to pipeline");
 495       return;
 496     }
 497
 498   if (!gst_bin_add (GST_BIN (priv->pipeline), preview))
 499     {
 500       g_warning ("Could not add video preview to pipeline");
 501       return;
 502     }
 503
 504   if (!gst_element_link (priv->video_input, priv->video_tee))
 505     {
 506       g_warning ("Could not link video input to video tee");
 507       return;
 508     }
 509
 510   if (!gst_element_link (priv->video_tee, preview))
 511     {
 512       g_warning ("Could not link video tee to video preview");
 513       return;
 514     }
 515 }
 516
 517 static void
 518 empathy_call_window_disable_camera_cb (GtkAction *action,
 519     EmpathyCallWindow *self)
 520 {
 521   clutter_actor_destroy (self->priv->preview_hidden_button);
 522
 523   gtk_toggle_tool_button_set_active (
 524       GTK_TOGGLE_TOOL_BUTTON (self->priv->camera_button), FALSE);
 525 }
 526
 527 static void
 528 empathy_call_window_minimise_camera_cb (GtkAction *action,
 529     EmpathyCallWindow *self)
 530 {
 531   clutter_actor_hide (self->priv->video_preview);
 532   clutter_actor_show (self->priv->preview_hidden_button);
 533 }
 534
 535 static void
 536 empathy_call_window_maximise_camera_cb (GtkAction *action,
 537     EmpathyCallWindow *self)
 538 {
 539   clutter_actor_show (self->priv->video_preview);
 540   clutter_actor_hide (self->priv->preview_hidden_button);
 541 }
 542
 543 static void
 544 empathy_call_window_swap_camera_cb (GtkAction *action,
 545     EmpathyCallWindow *self)
 546 {
 547   const GList *cameras, *l;
 548   gchar *current_cam;
 549
 550   DEBUG ("Swapping the camera");
 551
 552   cameras = empathy_camera_monitor_get_cameras (self->priv->camera_monitor);
 553   current_cam = empathy_video_src_dup_device (
 554       EMPATHY_GST_VIDEO_SRC (self->priv->video_input));
 555
 556   for (l = cameras; l != NULL; l = l->next)
 557     {
 558       EmpathyCamera *camera = l->data;
 559
 560       if (!tp_strdiff (camera->device, current_cam))
 561         {
 562           EmpathyCamera *next;
 563
 564           if (l->next != NULL)
 565             next = l->next->data;
 566           else
 567             next = cameras->data;
 568
 569           /* EmpathyCameraMenu will update itself and do the actual change
 570            * for us */
 571           g_settings_set_string (self->priv->settings,
 572               EMPATHY_PREFS_CALL_CAMERA_DEVICE,
 573               next->device);
 574
 575           break;
 576         }
 577     }
 578
 579   g_free (current_cam);
 580 }
 581
 582 static void
 583 empathy_call_window_camera_added_cb (EmpathyCameraMonitor *monitor,
 584     EmpathyCamera *camera,
 585     EmpathyCallWindow *self)
 586 {
 587   const GList *cameras = empathy_camera_monitor_get_cameras (monitor);
 588
 589   gtk_action_set_visible (self->priv->menu_swap_camera,
 590       g_list_length ((GList *) cameras) >= 2);
 591 }
 592
 593 static void
 594 empathy_call_window_camera_removed_cb (EmpathyCameraMonitor *monitor,
 595     EmpathyCamera *camera,
 596     EmpathyCallWindow *self)
 597 {
 598   const GList *cameras = empathy_camera_monitor_get_cameras (monitor);
 599
 600   gtk_action_set_visible (self->priv->menu_swap_camera,
 601       g_list_length ((GList *) cameras) >= 2);
 602 }
 603
 604 static void
 605 empathy_call_window_preview_button_clicked_cb (GtkButton *button,
 606     EmpathyCallWindow *self)
 607 {
 608   GtkWidget *menu;
 609
 610   menu = gtk_ui_manager_get_widget (self->priv->ui_manager,
 611       "/preview-menu");
 612   gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
 613       0, gtk_get_current_event_time ());
 614   gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
 615 }
 616
 617 static void
 618 empathy_call_window_preview_hidden_button_clicked_cb (GtkButton *button,
 619     EmpathyCallWindow *self)
 620 {
 621   GtkWidget *menu;
 622
 623   menu = gtk_ui_manager_get_widget (self->priv->ui_manager,
 624       "/preview-hidden-menu");
 625   gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
 626       0, gtk_get_current_event_time ());
 627   gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
 628 }
 629
 630 static ClutterActor *
 631 empathy_call_window_create_preview_rectangle (EmpathyCallWindow *self,
 632     ClutterActor **box,
 633     ClutterBinAlignment x,
 634     ClutterBinAlignment y)
 635 {
 636   ClutterLayoutManager *layout1, *layout2;
 637   EmpathyRoundedRectangle *rectangle;
 638   ClutterActor *box1, *box2;
 639
 640   layout1 = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
 641       CLUTTER_BIN_ALIGNMENT_START);
 642
 643   box1 = clutter_box_new (layout1);
 644
 645   *box = box1;
 646
 647   rectangle = empathy_rounded_rectangle_new (
 648       SELF_VIDEO_SECTION_WIDTH + 2 * SELF_VIDEO_SECTION_MARGIN,
 649       SELF_VIDEO_SECTION_HEIGHT + 2 * SELF_VIDEO_SECTION_MARGIN,
 650       PREVIEW_ROUND_FACTOR);
 651
 652   clutter_actor_set_size (box1,
 653       SELF_VIDEO_SECTION_WIDTH + 2 * SELF_VIDEO_SECTION_MARGIN,
 654       SELF_VIDEO_SECTION_HEIGHT + 2 * SELF_VIDEO_SECTION_MARGIN +
 655       FLOATING_TOOLBAR_HEIGHT + FLOATING_TOOLBAR_SPACING);
 656
 657   layout2 = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
 658       CLUTTER_BIN_ALIGNMENT_CENTER);
 659
 660   /* We have a box with the margins and the video in the middle inside
 661    * a bigger box with an extra bottom margin so we're not on top of
 662    * the floating toolbar. */
 663   box2 = clutter_box_new (layout2);
 664
 665   clutter_actor_set_size (box2,
 666       SELF_VIDEO_SECTION_WIDTH + 2 * SELF_VIDEO_SECTION_MARGIN,
 667       SELF_VIDEO_SECTION_HEIGHT + 2 * SELF_VIDEO_SECTION_MARGIN);
 668
 669   clutter_container_add_actor (CLUTTER_CONTAINER (box1), box2);
 670   clutter_container_add_actor (CLUTTER_CONTAINER (box2), CLUTTER_ACTOR (rectangle));
 671
 672   clutter_bin_layout_add (CLUTTER_BIN_LAYOUT (self->priv->video_layout),
 673       box1, x, y);
 674
 675   clutter_actor_hide (CLUTTER_ACTOR (rectangle));
 676
 677   return CLUTTER_ACTOR (rectangle);
 678 }
 679
 680 static void
 681 empathy_call_window_create_preview_rectangles (EmpathyCallWindow *self)
 682 {
 683   self->priv->preview_rectangle1 =
 684       empathy_call_window_create_preview_rectangle (self,
 685           &self->priv->preview_rectangle_box1,
 686           CLUTTER_BIN_ALIGNMENT_START, CLUTTER_BIN_ALIGNMENT_START);
 687   self->priv->preview_rectangle2 =
 688       empathy_call_window_create_preview_rectangle (self,
 689           &self->priv->preview_rectangle_box2,
 690           CLUTTER_BIN_ALIGNMENT_START, CLUTTER_BIN_ALIGNMENT_END);
 691   self->priv->preview_rectangle3 =
 692       empathy_call_window_create_preview_rectangle (self,
 693           &self->priv->preview_rectangle_box3,
 694           CLUTTER_BIN_ALIGNMENT_END, CLUTTER_BIN_ALIGNMENT_START);
 695   self->priv->preview_rectangle4 =
 696       empathy_call_window_create_preview_rectangle (self,
 697           &self->priv->preview_rectangle_box4,
 698           CLUTTER_BIN_ALIGNMENT_END, CLUTTER_BIN_ALIGNMENT_END);
 699 }
 700
 701 static void
 702 empathy_call_window_show_preview_rectangles (EmpathyCallWindow *self,
 703     gboolean show)
 704 {
 705   g_object_set (self->priv->preview_rectangle1, "visible", show, NULL);
 706   g_object_set (self->priv->preview_rectangle2, "visible", show, NULL);
 707   g_object_set (self->priv->preview_rectangle3, "visible", show, NULL);
 708   g_object_set (self->priv->preview_rectangle4, "visible", show, NULL);
 709 }
 710
 711 static void
 712 empathy_call_window_get_preview_coordinates (EmpathyCallWindow *self,
 713     PreviewPosition pos,
 714     guint *x,
 715     guint *y)
 716 {
 717   guint ret_x = 0, ret_y = 0;
 718   ClutterGeometry box;
 719
 720   if (!clutter_actor_has_allocation (self->priv->video_box))
 721     goto out;
 722
 723   clutter_actor_get_geometry (self->priv->video_box, &box);
 724
 725   switch (pos)
 726     {
 727       case PREVIEW_POS_TOP_LEFT:
 728         ret_x = ret_y = SELF_VIDEO_SECTION_MARGIN;
 729         break;
 730       case PREVIEW_POS_TOP_RIGHT:
 731         ret_x = box.width - SELF_VIDEO_SECTION_MARGIN
 732             - SELF_VIDEO_SECTION_WIDTH;
 733         ret_y = SELF_VIDEO_SECTION_MARGIN;
 734         break;
 735       case PREVIEW_POS_BOTTOM_LEFT:
 736         ret_x = SELF_VIDEO_SECTION_MARGIN;
 737         ret_y = box.height - SELF_VIDEO_SECTION_MARGIN
 738             - SELF_VIDEO_SECTION_HEIGHT
 739             - FLOATING_TOOLBAR_HEIGHT - FLOATING_TOOLBAR_SPACING;
 740         break;
 741       case PREVIEW_POS_BOTTOM_RIGHT:
 742         ret_x = box.width - SELF_VIDEO_SECTION_MARGIN
 743             - SELF_VIDEO_SECTION_WIDTH;
 744         ret_y = box.height - SELF_VIDEO_SECTION_MARGIN
 745             - SELF_VIDEO_SECTION_HEIGHT - FLOATING_TOOLBAR_HEIGHT
 746             - FLOATING_TOOLBAR_SPACING;
 747         break;
 748       default:
 749         g_warn_if_reached ();
 750     }
 751
 752 out:
 753   if (x != NULL)
 754     *x = ret_x;
 755
 756   if (y != NULL)
 757     *y = ret_y;
 758 }
 759
 760 static PreviewPosition
 761 empathy_call_window_get_preview_position (EmpathyCallWindow *self,
 762     gfloat event_x,
 763     gfloat event_y)
 764 {
 765   ClutterGeometry box;
 766   PreviewPosition pos = PREVIEW_POS_NONE;
 767
 768   if (!clutter_actor_has_allocation (self->priv->video_box))
 769     return pos;
 770
 771   clutter_actor_get_geometry (self->priv->video_box, &box);
 772
 773   if (0 + SELF_VIDEO_SECTION_MARGIN <= event_x &&
 774       event_x <= (0 + SELF_VIDEO_SECTION_MARGIN + (gint) SELF_VIDEO_SECTION_WIDTH) &&
 775       0 + SELF_VIDEO_SECTION_MARGIN <= event_y &&
 776       event_y <= (0 + SELF_VIDEO_SECTION_MARGIN + (gint) SELF_VIDEO_SECTION_HEIGHT))
 777     {
 778       pos = PREVIEW_POS_TOP_LEFT;
 779     }
 780   else if (box.width - SELF_VIDEO_SECTION_MARGIN >= event_x &&
 781       event_x >= (box.width - SELF_VIDEO_SECTION_MARGIN - (gint) SELF_VIDEO_SECTION_WIDTH) &&
 782       0 + SELF_VIDEO_SECTION_MARGIN <= event_y &&
 783       event_y <= (0 + SELF_VIDEO_SECTION_MARGIN + (gint) SELF_VIDEO_SECTION_HEIGHT))
 784     {
 785       pos = PREVIEW_POS_TOP_RIGHT;
 786     }
 787   else if (0 + SELF_VIDEO_SECTION_MARGIN <= event_x &&
 788       event_x <= (0 + SELF_VIDEO_SECTION_MARGIN + (gint) SELF_VIDEO_SECTION_WIDTH) &&
 789       box.height - SELF_VIDEO_SECTION_MARGIN - FLOATING_TOOLBAR_HEIGHT - FLOATING_TOOLBAR_SPACING >= event_y &&
 790       event_y >= (box.height - SELF_VIDEO_SECTION_MARGIN - FLOATING_TOOLBAR_HEIGHT - FLOATING_TOOLBAR_SPACING - (gint) SELF_VIDEO_SECTION_HEIGHT))
 791     {
 792       pos = PREVIEW_POS_BOTTOM_LEFT;
 793     }
 794   else if (box.width - SELF_VIDEO_SECTION_MARGIN >= event_x &&
 795       event_x >= (box.width - SELF_VIDEO_SECTION_MARGIN - (gint) SELF_VIDEO_SECTION_WIDTH) &&
 796       box.height - 2 * SELF_VIDEO_SECTION_MARGIN - FLOATING_TOOLBAR_HEIGHT - FLOATING_TOOLBAR_SPACING >= event_y &&
 797       event_y >= (box.height - SELF_VIDEO_SECTION_MARGIN - FLOATING_TOOLBAR_HEIGHT - FLOATING_TOOLBAR_SPACING - (gint) SELF_VIDEO_SECTION_HEIGHT))
 798     {
 799       pos = PREVIEW_POS_BOTTOM_RIGHT;
 800     }
 801
 802   return pos;
 803 }
 804
 805 static ClutterActor *
 806 empathy_call_window_get_preview_rectangle (EmpathyCallWindow *self,
 807     PreviewPosition pos)
 808 {
 809   ClutterActor *rectangle;
 810
 811   switch (pos)
 812     {
 813       case PREVIEW_POS_TOP_LEFT:
 814         rectangle = self->priv->preview_rectangle1;
 815         break;
 816       case PREVIEW_POS_TOP_RIGHT:
 817         rectangle = self->priv->preview_rectangle3;
 818         break;
 819       case PREVIEW_POS_BOTTOM_LEFT:
 820         rectangle = self->priv->preview_rectangle2;
 821         break;
 822       case PREVIEW_POS_BOTTOM_RIGHT:
 823         rectangle = self->priv->preview_rectangle4;
 824         break;
 825       default:
 826         rectangle = NULL;
 827     }
 828
 829   return rectangle;
 830 }
 831
 832 static void
 833 empathy_call_window_move_video_preview (EmpathyCallWindow *self,
 834     PreviewPosition pos)
 835 {
 836   ClutterBinLayout *layout = CLUTTER_BIN_LAYOUT (self->priv->video_layout);
 837
 838   DEBUG ("moving the video preview to %d", pos);
 839
 840   self->priv->preview_pos = pos;
 841
 842   switch (pos)
 843     {
 844       case PREVIEW_POS_TOP_LEFT:
 845         clutter_bin_layout_set_alignment (layout,
 846             self->priv->video_preview,
 847             CLUTTER_BIN_ALIGNMENT_START,
 848             CLUTTER_BIN_ALIGNMENT_START);
 849         break;
 850       case PREVIEW_POS_TOP_RIGHT:
 851         clutter_bin_layout_set_alignment (layout,
 852             self->priv->video_preview,
 853             CLUTTER_BIN_ALIGNMENT_END,
 854             CLUTTER_BIN_ALIGNMENT_START);
 855         break;
 856       case PREVIEW_POS_BOTTOM_LEFT:
 857         clutter_bin_layout_set_alignment (layout,
 858             self->priv->video_preview,
 859             CLUTTER_BIN_ALIGNMENT_START,
 860             CLUTTER_BIN_ALIGNMENT_END);
 861         break;
 862       case PREVIEW_POS_BOTTOM_RIGHT:
 863         clutter_bin_layout_set_alignment (layout,
 864             self->priv->video_preview,
 865             CLUTTER_BIN_ALIGNMENT_END,
 866             CLUTTER_BIN_ALIGNMENT_END);
 867         break;
 868       default:
 869         g_warn_if_reached ();
 870     }
 871
 872   g_settings_set_enum (self->priv->settings, "camera-position", pos);
 873 }
 874
 875 static void
 876 empathy_call_window_highlight_preview_rectangle (EmpathyCallWindow *self,
 877     PreviewPosition pos)
 878 {
 879   ClutterActor *rectangle;
 880
 881   rectangle = empathy_call_window_get_preview_rectangle (self, pos);
 882
 883   empathy_rounded_rectangle_set_border_width (
 884       EMPATHY_ROUNDED_RECTANGLE (rectangle), 2 * SELF_VIDEO_SECTION_MARGIN);
 885   empathy_rounded_rectangle_set_border_color (
 886       EMPATHY_ROUNDED_RECTANGLE (rectangle), CLUTTER_COLOR_Red);
 887 }
 888
 889 static void
 890 empathy_call_window_darken_preview_rectangle (EmpathyCallWindow *self,
 891     ClutterActor *rectangle)
 892 {
 893   empathy_rounded_rectangle_set_border_width (
 894       EMPATHY_ROUNDED_RECTANGLE (rectangle), 1);
 895   empathy_rounded_rectangle_set_border_color (
 896       EMPATHY_ROUNDED_RECTANGLE (rectangle), CLUTTER_COLOR_Black);
 897 }
 898
 899 static void
 900 empathy_call_window_darken_preview_rectangles (EmpathyCallWindow *self)
 901 {
 902   ClutterActor *rectangle;
 903
 904   rectangle = empathy_call_window_get_preview_rectangle (self,
 905       self->priv->preview_pos);
 906
 907   /* We don't want to darken the rectangle where the preview
 908    * currently is. */
 909
 910   if (self->priv->preview_rectangle1 != rectangle)
 911     empathy_call_window_darken_preview_rectangle (self,
 912         self->priv->preview_rectangle1);
 913
 914   if (self->priv->preview_rectangle2 != rectangle)
 915     empathy_call_window_darken_preview_rectangle (self,
 916         self->priv->preview_rectangle2);
 917
 918   if (self->priv->preview_rectangle3 != rectangle)
 919     empathy_call_window_darken_preview_rectangle (self,
 920         self->priv->preview_rectangle3);
 921
 922   if (self->priv->preview_rectangle4 != rectangle)
 923     empathy_call_window_darken_preview_rectangle (self,
 924         self->priv->preview_rectangle4);
 925 }
 926
 927 static void
 928 empathy_call_window_preview_on_drag_begin_cb (ClutterDragAction *action,
 929     ClutterActor *actor,
 930     gfloat event_x,
 931     gfloat event_y,
 932     ClutterModifierType modifiers,
 933     EmpathyCallWindow *self)
 934 {
 935   ClutterActor *stage = clutter_actor_get_stage (actor);
 936   gfloat rel_x, rel_y;
 937
 938   self->priv->drag_preview = clutter_clone_new (actor);
 939
 940   clutter_container_add_actor (CLUTTER_CONTAINER (stage),
 941       self->priv->drag_preview);
 942
 943   clutter_actor_transform_stage_point (actor, event_x, event_y,
 944       &rel_x, &rel_y);
 945
 946   clutter_actor_set_position (self->priv->drag_preview,
 947       event_x - rel_x, event_y - rel_y);
 948
 949   clutter_drag_action_set_drag_handle (action,
 950       self->priv->drag_preview);
 951
 952   clutter_actor_set_opacity (actor, 0);
 953   clutter_actor_hide (self->priv->preview_shown_button);
 954
 955   empathy_call_window_show_preview_rectangles (self, TRUE);
 956   empathy_call_window_darken_preview_rectangles (self);
 957 }
 958
 959 static void
 960 empathy_call_window_on_animation_completed_cb (ClutterAnimation *animation,
 961     ClutterActor *actor)
 962 {
 963   clutter_actor_set_opacity (actor, 255);
 964 }
 965
 966 static void
 967 empathy_call_window_preview_on_drag_end_cb (ClutterDragAction *action,
 968     ClutterActor *actor,
 969     gfloat event_x,
 970     gfloat event_y,
 971     ClutterModifierType modifiers,
 972     EmpathyCallWindow *self)
 973 {
 974   PreviewPosition pos;
 975   guint x, y;
 976
 977   /* Get the position before destroying the drag actor, otherwise the
 978    * preview_box allocation won't be valid and we won't be able to
 979    * calculate the position. */
 980   pos = empathy_call_window_get_preview_position (self, event_x, event_y);
 981
 982   empathy_call_window_get_preview_coordinates (self,
 983       pos != PREVIEW_POS_NONE ? pos : self->priv->preview_pos,
 984       &x, &y);
 985
 986   /* Move the preview to the destination and destroy it afterwards */
 987   clutter_actor_animate (self->priv->drag_preview, CLUTTER_LINEAR, 500,
 988       "x", (gfloat) x,
 989       "y", (gfloat) y,
 990       "signal-swapped-after::completed",
 991         clutter_actor_destroy, self->priv->drag_preview,
 992       "signal-swapped-after::completed",
 993         clutter_actor_show, self->priv->preview_shown_button,
 994       "signal::completed",
 995         empathy_call_window_on_animation_completed_cb, actor,
 996       NULL);
 997
 998   self->priv->drag_preview = NULL;
 999
1000   if (pos != PREVIEW_POS_NONE)
1001     empathy_call_window_move_video_preview (self, pos);
1002
1003   empathy_call_window_show_preview_rectangles (self, FALSE);
1004 }
1005
1006 static void
1007 empathy_call_window_preview_on_drag_motion_cb (ClutterDragAction *action,
1008     ClutterActor *actor,
1009     gfloat delta_x,
1010     gfloat delta_y,
1011     EmpathyCallWindow *self)
1012 {
1013   PreviewPosition pos;
1014   gfloat event_x, event_y;
1015
1016   clutter_drag_action_get_motion_coords (action, &event_x, &event_y);
1017
1018   pos = empathy_call_window_get_preview_position (self, event_x, event_y);
1019
1020   if (pos != PREVIEW_POS_NONE)
1021     empathy_call_window_highlight_preview_rectangle (self, pos);
1022   else
1023     empathy_call_window_darken_preview_rectangles (self);
1024 }
1025
1026 static gboolean
1027 empathy_call_window_preview_enter_event_cb (ClutterActor *actor,
1028     ClutterCrossingEvent *event,
1029     EmpathyCallWindow *self)
1030 {
1031   ClutterActor *rectangle;
1032
1033   rectangle = empathy_call_window_get_preview_rectangle (self,
1034       self->priv->preview_pos);
1035
1036   empathy_call_window_highlight_preview_rectangle (self,
1037       self->priv->preview_pos);
1038
1039   clutter_actor_show (rectangle);
1040
1041   return FALSE;
1042 }
1043
1044 static gboolean
1045 empathy_call_window_preview_leave_event_cb (ClutterActor *actor,
1046     ClutterCrossingEvent *event,
1047     EmpathyCallWindow *self)
1048 {
1049   ClutterActor *rectangle;
1050
1051   rectangle = empathy_call_window_get_preview_rectangle (self,
1052       self->priv->preview_pos);
1053
1054   empathy_call_window_darken_preview_rectangle (self, rectangle);
1055
1056   clutter_actor_hide (rectangle);
1057
1058   return FALSE;
1059 }
1060
1061 static void
1062 create_video_preview (EmpathyCallWindow *self)
1063 {
1064   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1065   ClutterLayoutManager *layout, *layout_center, *layout_end;
1066   ClutterActor *preview;
1067   ClutterActor *box;
1068   ClutterActor *b;
1069   ClutterAction *action;
1070   GtkWidget *button;
1071   PreviewPosition pos;
1072   GdkRGBA transparent = { 0., 0., 0., 0. };
1073   GtkWidget *bin;
1074
1075   g_assert (priv->video_preview == NULL);
1076
1077   pos = g_settings_get_enum (priv->settings, "camera-position");
1078
1079   preview = empathy_rounded_texture_new ();
1080   clutter_actor_set_size (preview,
1081       SELF_VIDEO_SECTION_WIDTH, SELF_VIDEO_SECTION_HEIGHT);
1082
1083   priv->video_preview_sink = gst_element_factory_make ("cluttersink", NULL);
1084   if (priv->video_preview_sink == NULL)
1085     g_error ("Missing cluttersink");
1086   else
1087     g_object_set (priv->video_preview_sink, "texture", preview, NULL);
1088
1089   /* Add a little offset to the video preview */
1090   layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
1091       CLUTTER_BIN_ALIGNMENT_START);
1092   priv->video_preview = clutter_box_new (layout);
1093   clutter_actor_set_size (priv->video_preview,
1094       SELF_VIDEO_SECTION_WIDTH + 2 * SELF_VIDEO_SECTION_MARGIN,
1095       SELF_VIDEO_SECTION_HEIGHT + 2 * SELF_VIDEO_SECTION_MARGIN +
1096       FLOATING_TOOLBAR_HEIGHT + FLOATING_TOOLBAR_SPACING);
1097
1098   /* Spinner for when changing the camera device */
1099   priv->preview_spinner_widget = gtk_spinner_new ();
1100   priv->preview_spinner_actor = empathy_rounded_actor_new (PREVIEW_ROUND_FACTOR);
1101
1102   g_object_set (priv->preview_spinner_widget, "expand", TRUE, NULL);
1103   gtk_widget_override_background_color (
1104       gtk_clutter_actor_get_widget (
1105           GTK_CLUTTER_ACTOR (priv->preview_spinner_actor)),
1106       GTK_STATE_FLAG_NORMAL, &transparent);
1107   gtk_widget_show (priv->preview_spinner_widget);
1108
1109   gtk_container_add (
1110       GTK_CONTAINER (gtk_clutter_actor_get_widget (
1111           GTK_CLUTTER_ACTOR (priv->preview_spinner_actor))),
1112       priv->preview_spinner_widget);
1113   clutter_actor_set_size (priv->preview_spinner_actor,
1114       SELF_VIDEO_SECTION_WIDTH, SELF_VIDEO_SECTION_HEIGHT);
1115   clutter_actor_set_opacity (priv->preview_spinner_actor, 128);
1116   clutter_actor_hide (priv->preview_spinner_actor);
1117
1118   /* We have a box with the margins and the video in the middle inside
1119    * a bigger box with an extra bottom margin so we're not on top of
1120    * the floating toolbar. */
1121   layout_center = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
1122       CLUTTER_BIN_ALIGNMENT_CENTER);
1123   box = clutter_box_new (layout_center);
1124   clutter_actor_set_size (box,
1125       SELF_VIDEO_SECTION_WIDTH + 2 * SELF_VIDEO_SECTION_MARGIN,
1126       SELF_VIDEO_SECTION_HEIGHT + 2 * SELF_VIDEO_SECTION_MARGIN);
1127
1128   clutter_container_add_actor (CLUTTER_CONTAINER (box), preview);
1129   clutter_container_add_actor (CLUTTER_CONTAINER (box),
1130       priv->preview_spinner_actor);
1131   clutter_container_add_actor (CLUTTER_CONTAINER (priv->video_preview), box);
1132
1133   g_object_set (priv->video_preview_sink,
1134       "sync", FALSE,
1135       "async", FALSE,
1136       NULL);
1137
1138   /* Translators: this is an "Info" label. It should be as short
1139    * as possible. */
1140   button = gtk_button_new_with_label (_("i"));
1141   priv->preview_shown_button = b = gtk_clutter_actor_new_with_contents (button);
1142   clutter_actor_set_size (b, 24, 24);
1143   bin = gtk_clutter_actor_get_widget (GTK_CLUTTER_ACTOR (b));
1144   gtk_widget_override_background_color (bin, GTK_STATE_FLAG_NORMAL, &transparent);
1145
1146   layout_end = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_END,
1147       CLUTTER_BIN_ALIGNMENT_END);
1148   box = clutter_box_new (layout_end);
1149   clutter_actor_set_size (box,
1150       SELF_VIDEO_SECTION_WIDTH - 4,
1151       SELF_VIDEO_SECTION_HEIGHT - 2);
1152
1153   clutter_container_add_actor (CLUTTER_CONTAINER (box), b);
1154   clutter_container_add_actor (CLUTTER_CONTAINER (priv->video_preview), box);
1155
1156   g_signal_connect (button, "clicked",
1157       G_CALLBACK (empathy_call_window_preview_button_clicked_cb),
1158       self);
1159
1160   /* Translators: this is an "Info" label. It should be as short
1161    * as possible. */
1162   button = gtk_button_new_with_label (_("i"));
1163   priv->preview_hidden_button = b = gtk_clutter_actor_new_with_contents (button);
1164   clutter_actor_set_size (b, 24, 24);
1165   gtk_widget_override_background_color (bin, GTK_STATE_FLAG_NORMAL, &transparent);
1166
1167   clutter_bin_layout_add (CLUTTER_BIN_LAYOUT (priv->video_layout),
1168       priv->preview_hidden_button,
1169       CLUTTER_BIN_ALIGNMENT_START,
1170       CLUTTER_BIN_ALIGNMENT_END);
1171
1172   self->priv->preview_pos = PREVIEW_POS_BOTTOM_LEFT;
1173
1174   clutter_actor_hide (priv->preview_hidden_button);
1175
1176   g_signal_connect (button, "clicked",
1177       G_CALLBACK (empathy_call_window_preview_hidden_button_clicked_cb),
1178       self);
1179
1180   clutter_bin_layout_add (CLUTTER_BIN_LAYOUT (priv->video_layout),
1181       priv->video_preview,
1182       CLUTTER_BIN_ALIGNMENT_START,
1183       CLUTTER_BIN_ALIGNMENT_END);
1184
1185   empathy_call_window_move_video_preview (self, pos);
1186
1187   action = clutter_drag_action_new ();
1188   g_signal_connect (action, "drag-begin",
1189       G_CALLBACK (empathy_call_window_preview_on_drag_begin_cb), self);
1190   g_signal_connect (action, "drag-end",
1191       G_CALLBACK (empathy_call_window_preview_on_drag_end_cb), self);
1192   g_signal_connect (action, "drag-motion",
1193       G_CALLBACK (empathy_call_window_preview_on_drag_motion_cb), self);
1194
1195   g_signal_connect (preview, "enter-event",
1196       G_CALLBACK (empathy_call_window_preview_enter_event_cb), self);
1197   g_signal_connect (preview, "leave-event",
1198       G_CALLBACK (empathy_call_window_preview_leave_event_cb), self);
1199
1200   clutter_actor_add_action (preview, action);
1201   clutter_actor_set_reactive (preview, TRUE);
1202   clutter_actor_set_reactive (priv->preview_shown_button, TRUE);
1203 }
1204
1205 static void
1206 empathy_call_window_start_camera_spinning (EmpathyCallWindow *self)
1207 {
1208   clutter_actor_show (self->priv->preview_spinner_actor);
1209   gtk_spinner_start (GTK_SPINNER (self->priv->preview_spinner_widget));
1210 }
1211
1212 static void
1213 empathy_call_window_stop_camera_spinning (EmpathyCallWindow *self)
1214 {
1215   clutter_actor_hide (self->priv->preview_spinner_actor);
1216   gtk_spinner_stop (GTK_SPINNER (self->priv->preview_spinner_widget));
1217 }
1218
1219 void
1220 empathy_call_window_play_camera (EmpathyCallWindow *self,
1221     gboolean play)
1222 {
1223   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1224   GstElement *preview;
1225   GstState state;
1226
1227   if (priv->video_preview == NULL)
1228     {
1229       create_video_preview (self);
1230       add_video_preview_to_pipeline (self);
1231     }
1232
1233   if (play)
1234     {
1235       state = GST_STATE_PLAYING;
1236     }
1237   else
1238     {
1239       empathy_call_window_start_camera_spinning (self);
1240       state = GST_STATE_NULL;
1241     }
1242
1243   preview = priv->video_preview_sink;
1244
1245   gst_element_set_state (preview, state);
1246   gst_element_set_state (priv->video_tee, state);
1247   gst_element_set_state (priv->video_input, state);
1248 }
1249
1250 static void
1251 display_video_preview (EmpathyCallWindow *self,
1252     gboolean display)
1253 {
1254   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1255
1256   if (priv->video_preview == NULL)
1257     {
1258       create_video_preview (self);
1259       add_video_preview_to_pipeline (self);
1260     }
1261
1262   if (display)
1263     {
1264       /* Display the video preview */
1265       DEBUG ("Show video preview");
1266
1267       empathy_call_window_play_camera (self, TRUE);
1268       clutter_actor_show (priv->video_preview);
1269       clutter_actor_raise_top (priv->floating_toolbar);
1270     }
1271   else
1272     {
1273       /* Hide the video preview */
1274       DEBUG ("Hide video preview");
1275
1276       if (priv->video_preview != NULL)
1277         {
1278           clutter_actor_hide (priv->video_preview);
1279           empathy_call_window_play_camera (self, FALSE);
1280         }
1281     }
1282 }
1283
1284 static void
1285 empathy_call_window_set_state_connecting (EmpathyCallWindow *window)
1286 {
1287   EmpathyCallWindowPriv *priv = GET_PRIV (window);
1288
1289   empathy_call_window_status_message (window, _("Connecting…"));
1290   priv->call_state = CONNECTING;
1291
1292   /* Show the toolbar */
1293   clutter_state_set_state (priv->transitions, "fade-in");
1294
1295   if (priv->outgoing)
1296     empathy_sound_manager_start_playing (priv->sound_mgr, GTK_WIDGET (window),
1297         EMPATHY_SOUND_PHONE_OUTGOING, MS_BETWEEN_RING);
1298 }
1299
1300 static void
1301 disable_camera (EmpathyCallWindow *self)
1302 {
1303   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1304
1305   if (priv->camera_state == CAMERA_STATE_OFF)
1306     return;
1307
1308   DEBUG ("Disable camera");
1309
1310   empathy_call_window_set_send_video (self, CAMERA_STATE_OFF);
1311
1312   priv->camera_state = CAMERA_STATE_OFF;
1313 }
1314
1315 static void
1316 enable_camera (EmpathyCallWindow *self)
1317 {
1318   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1319
1320   if (priv->camera_state == CAMERA_STATE_ON)
1321     return;
1322
1323   if (priv->video_input == NULL)
1324     {
1325       DEBUG ("Can't enable camera, no input");
1326       return;
1327     }
1328
1329   DEBUG ("Enable camera");
1330
1331   empathy_call_window_set_send_video (self, CAMERA_STATE_ON);
1332
1333   priv->camera_state = CAMERA_STATE_ON;
1334 }
1335
1336 static void
1337 empathy_call_window_camera_toggled_cb (GtkToggleToolButton *toggle,
1338   EmpathyCallWindow *self)
1339 {
1340   if (gtk_toggle_tool_button_get_active (toggle))
1341     enable_camera (self);
1342   else
1343     disable_camera (self);
1344 }
1345
1346 static void
1347 create_pipeline (EmpathyCallWindow *self)
1348 {
1349   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1350   GstBus *bus;
1351
1352   g_assert (priv->pipeline == NULL);
1353
1354   priv->pipeline = gst_pipeline_new (NULL);
1355   priv->pipeline_playing = FALSE;
1356
1357   priv->video_tee = gst_element_factory_make ("tee", NULL);
1358   gst_object_ref (priv->video_tee);
1359   gst_object_sink (priv->video_tee);
1360
1361   gst_bin_add (GST_BIN (priv->pipeline), priv->video_tee);
1362
1363   bus = gst_pipeline_get_bus (GST_PIPELINE (priv->pipeline));
1364   priv->bus_message_source_id = gst_bus_add_watch (bus,
1365       empathy_call_window_bus_message, self);
1366
1367   g_object_unref (bus);
1368 }
1369
1370 static void
1371 empathy_call_window_settings_cb (GtkAction *action,
1372     EmpathyCallWindow *self)
1373 {
1374   gchar *args = g_strdup_printf ("-p %s",
1375       empathy_preferences_tab_to_string (EMPATHY_PREFERENCES_TAB_CALLS));
1376
1377   empathy_launch_program (BIN_DIR, "empathy", args);
1378
1379   g_free (args);
1380 }
1381
1382 static void
1383 empathy_call_window_contents_cb (GtkAction *action,
1384     EmpathyCallWindow *self)
1385 {
1386   empathy_url_show (GTK_WIDGET (self), "ghelp:empathy?audio-video");
1387 }
1388
1389 static void
1390 empathy_call_window_debug_cb (GtkAction *action,
1391     EmpathyCallWindow *self)
1392 {
1393   empathy_launch_program (BIN_DIR, "empathy-debugger", "-s Empathy.Call");
1394 }
1395
1396 static void
1397 empathy_call_window_about_cb (GtkAction *action,
1398     EmpathyCallWindow *self)
1399 {
1400   empathy_about_dialog_new (GTK_WINDOW (self));
1401 }
1402
1403 static gboolean
1404 empathy_call_window_toolbar_timeout (gpointer data)
1405 {
1406   EmpathyCallWindow *self = data;
1407
1408   /* We don't want to hide the toolbar if we're not in a call, as
1409    * to show the call status all the time. */
1410   if (self->priv->call_state != CONNECTING &&
1411       self->priv->call_state != DISCONNECTED)
1412     clutter_state_set_state (self->priv->transitions, "fade-out");
1413
1414   return TRUE;
1415 }
1416
1417 static gboolean
1418 empathy_call_window_motion_notify_cb (GtkWidget *widget,
1419     GdkEvent *event,
1420     EmpathyCallWindow *self)
1421 {
1422   clutter_state_set_state (self->priv->transitions, "fade-in");
1423
1424   if (self->priv->inactivity_src > 0)
1425     g_source_remove (self->priv->inactivity_src);
1426
1427   self->priv->inactivity_src = g_timeout_add_seconds (3,
1428       empathy_call_window_toolbar_timeout, self);
1429
1430   return FALSE;
1431 }
1432
1433 static gboolean
1434 empathy_call_window_configure_event_cb (GtkWidget *widget,
1435     GdkEvent  *event,
1436     EmpathyCallWindow *self)
1437 {
1438   GdkWindow *gdk_window;
1439   GdkWindowState window_state;
1440
1441   gtk_window_get_position (GTK_WINDOW (self), &self->priv->x, &self->priv->y);
1442   gtk_window_get_size (GTK_WINDOW (self), &self->priv->w, &self->priv->h);
1443
1444   gtk_widget_get_preferred_width (self->priv->dtmf_panel,
1445       &self->priv->dialpad_width, NULL);
1446
1447   gdk_window = gtk_widget_get_window (widget);
1448   window_state = gdk_window_get_state (gdk_window);
1449   self->priv->maximized = (window_state & GDK_WINDOW_STATE_MAXIMIZED);
1450
1451   return FALSE;
1452 }
1453
1454 static void
1455 empathy_call_window_destroyed_cb (GtkWidget *object,
1456     EmpathyCallWindow *self)
1457 {
1458   if (gtk_widget_get_visible (self->priv->dtmf_panel))
1459     {
1460       /* Save the geometry as if the dialpad was hidden. */
1461       empathy_geometry_save_values (GTK_WINDOW (self),
1462           self->priv->x, self->priv->y,
1463           self->priv->w - self->priv->dialpad_width, self->priv->h,
1464           self->priv->maximized);
1465     }
1466 }
1467
1468 static void
1469 empathy_call_window_stage_allocation_changed_cb (ClutterActor *stage,
1470     GParamSpec *pspec,
1471     ClutterBindConstraint *constraint)
1472 {
1473   ClutterActorBox allocation;
1474
1475   clutter_actor_get_allocation_box (stage, &allocation);
1476
1477   clutter_bind_constraint_set_offset (constraint,
1478       allocation.y2 - allocation.y1 -
1479       FLOATING_TOOLBAR_SPACING - FLOATING_TOOLBAR_HEIGHT);
1480 }
1481
1482 static void
1483 empathy_call_window_incoming_call_response_cb (GtkDialog *dialog,
1484     gint response_id,
1485     EmpathyCallWindow *self)
1486 {
1487   switch (response_id)
1488     {
1489       case GTK_RESPONSE_ACCEPT:
1490         tp_channel_dispatch_operation_handle_with_async (
1491             self->priv->pending_cdo, EMPATHY_CALL_BUS_NAME, NULL, NULL);
1492
1493         tp_clear_object (&self->priv->pending_cdo);
1494         tp_clear_object (&self->priv->pending_channel);
1495         tp_clear_object (&self->priv->pending_context);
1496
1497         break;
1498       case GTK_RESPONSE_CANCEL:
1499         tp_channel_dispatch_operation_close_channels_async (
1500             self->priv->pending_cdo, NULL, NULL);
1501
1502         empathy_call_window_status_message (self, _("Disconnected"));
1503         self->priv->call_state = DISCONNECTED;
1504         break;
1505       default:
1506         g_warn_if_reached ();
1507     }
1508 }
1509
1510 static void
1511 empathy_call_window_set_state_ringing (EmpathyCallWindow *self)
1512 {
1513   gboolean video;
1514
1515   g_assert (self->priv->call_state != CONNECTED);
1516
1517   video = tp_call_channel_has_initial_video (self->priv->pending_channel, NULL);
1518
1519   empathy_call_window_status_message (self, _("Incoming call"));
1520   self->priv->call_state = RINGING;
1521
1522   self->priv->incoming_call_dialog = gtk_message_dialog_new (
1523       GTK_WINDOW (self), GTK_DIALOG_MODAL,
1524       GTK_MESSAGE_QUESTION, GTK_BUTTONS_NONE,
1525       video ? _("Incoming video call from %s") : _("Incoming call from %s"),
1526       empathy_contact_get_alias (self->priv->contact));
1527
1528   gtk_dialog_add_buttons (GTK_DIALOG (self->priv->incoming_call_dialog),
1529       _("Reject"), GTK_RESPONSE_CANCEL,
1530       _("Answer"), GTK_RESPONSE_ACCEPT,
1531       NULL);
1532
1533   g_signal_connect (self->priv->incoming_call_dialog, "response",
1534       G_CALLBACK (empathy_call_window_incoming_call_response_cb), self);
1535   gtk_widget_show (self->priv->incoming_call_dialog);
1536 }
1537
1538 static void
1539 empathy_call_window_cdo_invalidated_cb (TpProxy *channel,
1540     guint domain,
1541     gint code,
1542     gchar *message,
1543     EmpathyCallWindow *self)
1544 {
1545   tp_clear_object (&self->priv->pending_cdo);
1546   tp_clear_object (&self->priv->pending_channel);
1547   tp_clear_object (&self->priv->pending_context);
1548
1549   /* We don't know if the incoming call has been accepted or not, so we
1550    * assume it hasn't and if it has, we'll set the proper status when
1551    * we get the new handler. */
1552   empathy_call_window_status_message (self, _("Disconnected"));
1553   self->priv->call_state = DISCONNECTED;
1554
1555   gtk_widget_destroy (self->priv->incoming_call_dialog);
1556   self->priv->incoming_call_dialog = NULL;
1557 }
1558
1559 void
1560 empathy_call_window_start_ringing (EmpathyCallWindow *self,
1561     TpCallChannel *channel,
1562     TpChannelDispatchOperation *dispatch_operation,
1563     TpAddDispatchOperationContext *context)
1564 {
1565   g_assert (self->priv->pending_channel == NULL);
1566   g_assert (self->priv->pending_context == NULL);
1567   g_assert (self->priv->pending_cdo == NULL);
1568
1569   /* Start ringing and delay until the user answers or hangs. */
1570   self->priv->pending_channel = g_object_ref (channel);
1571   self->priv->pending_context = g_object_ref (context);
1572   self->priv->pending_cdo = g_object_ref (dispatch_operation);
1573
1574   g_signal_connect (self->priv->pending_cdo, "invalidated",
1575       G_CALLBACK (empathy_call_window_cdo_invalidated_cb), self);
1576
1577   empathy_call_window_set_state_ringing (self);
1578   tp_add_dispatch_operation_context_accept (context);
1579 }
1580
1581 static void
1582 empathy_call_window_init (EmpathyCallWindow *self)
1583 {
1584   EmpathyCallWindowPriv *priv;
1585   GtkBuilder *gui;
1586   GtkWidget *top_vbox;
1587   gchar *filename;
1588   ClutterConstraint *constraint;
1589   ClutterActor *remote_avatar;
1590   GtkStyleContext *context;
1591   GdkRGBA rgba;
1592   ClutterColor bg;
1593
1594   priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
1595     EMPATHY_TYPE_CALL_WINDOW, EmpathyCallWindowPriv);
1596
1597   priv->settings = g_settings_new (EMPATHY_PREFS_CALL_SCHEMA);
1598
1599   filename = empathy_file_lookup ("empathy-call-window.ui", "src");
1600   gui = empathy_builder_get_file (filename,
1601     "call_window_vbox", &top_vbox,
1602     "errors_vbox", &priv->errors_vbox,
1603     "pane", &priv->pane,
1604     "remote_user_name_toolbar", &priv->remote_user_name_toolbar,
1605     "remote_user_avatar_toolbar", &priv->remote_user_avatar_toolbar,
1606     "status_label", &priv->status_label,
1607     "audiocall", &priv->audio_call_button,
1608     "videocall", &priv->video_call_button,
1609     "microphone", &priv->mic_button,
1610     "volume", &priv->volume_button,
1611     "camera", &priv->camera_button,
1612     "hangup", &priv->hangup_button,
1613     "dialpad", &priv->dialpad_button,
1614     "toolbar", &priv->toolbar,
1615     "bottom_toolbar", &priv->bottom_toolbar,
1616     "ui_manager", &priv->ui_manager,
1617     "menufullscreen", &priv->menu_fullscreen,
1618     "menupreviewswap", &priv->menu_swap_camera,
1619     "details_vbox",  &priv->details_vbox,
1620     "vcodec_encoding_label", &priv->vcodec_encoding_label,
1621     "acodec_encoding_label", &priv->acodec_encoding_label,
1622     "acodec_decoding_label", &priv->acodec_decoding_label,
1623     "vcodec_decoding_label", &priv->vcodec_decoding_label,
1624     "audio_remote_candidate_label", &priv->audio_remote_candidate_label,
1625     "audio_local_candidate_label", &priv->audio_local_candidate_label,
1626     "video_remote_candidate_label", &priv->video_remote_candidate_label,
1627     "video_local_candidate_label", &priv->video_local_candidate_label,
1628     "video_remote_candidate_info_img", &priv->video_remote_candidate_info_img,
1629     "video_local_candidate_info_img", &priv->video_local_candidate_info_img,
1630     "audio_remote_candidate_info_img", &priv->audio_remote_candidate_info_img,
1631     "audio_local_candidate_info_img", &priv->audio_local_candidate_info_img,
1632     NULL);
1633   g_free (filename);
1634
1635   empathy_builder_connect (gui, self,
1636     "hangup", "clicked", empathy_call_window_hangup_cb,
1637     "audiocall", "clicked", empathy_call_window_audio_call_cb,
1638     "videocall", "clicked", empathy_call_window_video_call_cb,
1639     "camera", "toggled", empathy_call_window_camera_toggled_cb,
1640     "dialpad", "toggled", empathy_call_window_dialpad_cb,
1641     "menufullscreen", "activate", empathy_call_window_fullscreen_cb,
1642     "menusettings", "activate", empathy_call_window_settings_cb,
1643     "menucontents", "activate", empathy_call_window_contents_cb,
1644     "menudebug", "activate", empathy_call_window_debug_cb,
1645     "menuabout", "activate", empathy_call_window_about_cb,
1646     "menupreviewdisable", "activate", empathy_call_window_disable_camera_cb,
1647     "menupreviewminimise", "activate", empathy_call_window_minimise_camera_cb,
1648     "menupreviewmaximise", "activate", empathy_call_window_maximise_camera_cb,
1649     "menupreviewswap", "activate", empathy_call_window_swap_camera_cb,
1650     NULL);
1651
1652   gtk_action_set_sensitive (priv->menu_fullscreen, FALSE);
1653
1654   priv->camera_monitor = empathy_camera_monitor_dup_singleton ();
1655
1656   g_object_bind_property (priv->camera_monitor, "available",
1657       priv->camera_button, "sensitive",
1658       G_BINDING_SYNC_CREATE);
1659
1660   g_signal_connect (priv->camera_monitor, "added",
1661       G_CALLBACK (empathy_call_window_camera_added_cb), self);
1662   g_signal_connect (priv->camera_monitor, "removed",
1663       G_CALLBACK (empathy_call_window_camera_removed_cb), self);
1664
1665   priv->lock = g_mutex_new ();
1666
1667   gtk_container_add (GTK_CONTAINER (self), top_vbox);
1668
1669   priv->content_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL,
1670       CONTENT_HBOX_SPACING);
1671   gtk_container_set_border_width (GTK_CONTAINER (priv->content_hbox),
1672                                   CONTENT_HBOX_BORDER_WIDTH);
1673   gtk_box_pack_start (GTK_BOX (priv->pane), priv->content_hbox,
1674       TRUE, TRUE, 0);
1675
1676   /* avatar/video box */
1677   priv->video_layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
1678       CLUTTER_BIN_ALIGNMENT_CENTER);
1679
1680   priv->video_box = clutter_box_new (priv->video_layout);
1681
1682   priv->video_container = gtk_clutter_embed_new ();
1683
1684   gtk_widget_set_size_request (priv->video_container,
1685       EMPATHY_VIDEO_WIDGET_DEFAULT_WIDTH, EMPATHY_VIDEO_WIDGET_DEFAULT_HEIGHT);
1686
1687   /* Set the background color to that of the rest of the window */
1688   context = gtk_widget_get_style_context (priv->content_hbox);
1689   gtk_style_context_get_background_color (context,
1690       GTK_STATE_FLAG_NORMAL, &rgba);
1691   bg.red = CLAMP (rgba.red * 255.0, 0, 255);
1692   bg.green = CLAMP (rgba.green * 255.0, 0, 255);
1693   bg.blue = CLAMP (rgba.blue * 255.0, 0, 255);
1694   bg.alpha = CLAMP (rgba.alpha * 255.0, 0, 255);
1695   clutter_stage_set_color (
1696       CLUTTER_STAGE (gtk_clutter_embed_get_stage (
1697           GTK_CLUTTER_EMBED (priv->video_container))),
1698       &bg);
1699
1700   clutter_container_add (
1701       CLUTTER_CONTAINER (gtk_clutter_embed_get_stage (
1702           GTK_CLUTTER_EMBED (priv->video_container))),
1703       priv->video_box,
1704       NULL);
1705
1706   constraint = clutter_bind_constraint_new (
1707       gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (priv->video_container)),
1708       CLUTTER_BIND_SIZE, 0);
1709   clutter_actor_add_constraint (priv->video_box, constraint);
1710
1711   priv->remote_user_avatar_widget = gtk_image_new ();
1712   remote_avatar = gtk_clutter_actor_new_with_contents (
1713       priv->remote_user_avatar_widget);
1714
1715   clutter_container_add_actor (CLUTTER_CONTAINER (priv->video_box),
1716       remote_avatar);
1717
1718   empathy_call_window_create_preview_rectangles (self);
1719
1720   gtk_box_pack_start (GTK_BOX (priv->content_hbox),
1721       priv->video_container, TRUE, TRUE,
1722       CONTENT_HBOX_CHILDREN_PACKING_PADDING);
1723
1724   create_pipeline (self);
1725   create_video_output_widget (self);
1726   create_audio_input (self);
1727   create_video_input (self);
1728
1729   priv->floating_toolbar = empathy_rounded_actor_new (2);
1730
1731   gtk_widget_reparent (priv->bottom_toolbar,
1732       gtk_clutter_actor_get_widget (GTK_CLUTTER_ACTOR (priv->floating_toolbar)));
1733
1734   constraint = clutter_bind_constraint_new (
1735       gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (priv->video_container)),
1736       CLUTTER_BIND_Y, 0);
1737
1738   clutter_actor_add_constraint (priv->floating_toolbar, constraint);
1739
1740   g_signal_connect (
1741       gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (priv->video_container)),
1742       "notify::allocation",
1743       G_CALLBACK (empathy_call_window_stage_allocation_changed_cb),
1744       constraint);
1745
1746   clutter_actor_set_size (priv->floating_toolbar,
1747       FLOATING_TOOLBAR_WIDTH, FLOATING_TOOLBAR_HEIGHT);
1748   clutter_actor_set_opacity (priv->floating_toolbar, FLOATING_TOOLBAR_OPACITY);
1749
1750   clutter_bin_layout_add (CLUTTER_BIN_LAYOUT (priv->video_layout),
1751       priv->floating_toolbar,
1752       CLUTTER_BIN_ALIGNMENT_CENTER,
1753       CLUTTER_BIN_ALIGNMENT_END);
1754
1755   clutter_actor_raise_top (priv->floating_toolbar);
1756
1757   /* Transitions for the floating toolbar */
1758   priv->transitions = clutter_state_new ();
1759
1760   /* all transitions last for 2s */
1761   clutter_state_set_duration (priv->transitions, NULL, NULL, 2000);
1762
1763   /* transition from any state to "fade-out" state */
1764   clutter_state_set (priv->transitions, NULL, "fade-out",
1765       priv->floating_toolbar,
1766       "opacity", CLUTTER_EASE_OUT_QUAD, 0,
1767       NULL);
1768
1769   /* transition from any state to "fade-in" state */
1770   clutter_state_set (priv->transitions, NULL, "fade-in",
1771       priv->floating_toolbar,
1772       "opacity", CLUTTER_EASE_OUT_QUAD, FLOATING_TOOLBAR_OPACITY,
1773       NULL);
1774
1775   /* put the actor into the "fade-in" state with no animation */
1776   clutter_state_warp_to_state (priv->transitions, "fade-in");
1777
1778   /* The call will be started as soon the pipeline is playing */
1779   priv->start_call_when_playing = TRUE;
1780
1781   priv->dtmf_panel = empathy_dialpad_widget_new ();
1782   g_signal_connect (priv->dtmf_panel, "start-tone",
1783       G_CALLBACK (dtmf_start_tone_cb), self);
1784
1785   gtk_box_pack_start (GTK_BOX (priv->pane), priv->dtmf_panel,
1786       FALSE, FALSE, 6);
1787
1788   gtk_box_pack_start (GTK_BOX (priv->pane), priv->details_vbox,
1789       FALSE, FALSE, 0);
1790
1791   gtk_widget_set_sensitive (priv->dtmf_panel, FALSE);
1792
1793   gtk_widget_show_all (top_vbox);
1794
1795   gtk_widget_hide (priv->dtmf_panel);
1796   gtk_widget_hide (priv->details_vbox);
1797
1798   priv->fullscreen = empathy_call_window_fullscreen_new (self);
1799
1800   empathy_call_window_fullscreen_set_video_widget (priv->fullscreen,
1801       priv->video_container);
1802
1803   /* We hide the bottom toolbar after 3s of inactivity and show it
1804    * again on mouse movement */
1805   priv->inactivity_src = g_timeout_add_seconds (3,
1806       empathy_call_window_toolbar_timeout, self);
1807
1808   g_signal_connect (G_OBJECT (priv->fullscreen->leave_fullscreen_button),
1809       "clicked", G_CALLBACK (empathy_call_window_fullscreen_cb), self);
1810
1811   g_signal_connect (G_OBJECT (self), "realize",
1812     G_CALLBACK (empathy_call_window_realized_cb), self);
1813
1814   g_signal_connect (G_OBJECT (self), "delete-event",
1815     G_CALLBACK (empathy_call_window_delete_cb), self);
1816
1817   g_signal_connect (G_OBJECT (self), "window-state-event",
1818     G_CALLBACK (empathy_call_window_state_event_cb), self);
1819
1820   g_signal_connect (G_OBJECT (self), "key-press-event",
1821       G_CALLBACK (empathy_call_window_key_press_cb), self);
1822
1823   g_signal_connect (self, "motion-notify-event",
1824       G_CALLBACK (empathy_call_window_motion_notify_cb), self);
1825
1826   priv->timer = g_timer_new ();
1827
1828   g_object_ref (priv->ui_manager);
1829   g_object_unref (gui);
1830
1831   priv->sound_mgr = empathy_sound_manager_dup_singleton ();
1832   priv->mic_menu = empathy_mic_menu_new (self);
1833   priv->camera_menu = empathy_camera_menu_new (self);
1834
1835   empathy_call_window_show_hangup_button (self, TRUE);
1836
1837   empathy_geometry_bind (GTK_WINDOW (self), "call-window");
1838   /* These signals are used to track the window position and save it
1839    * when the window is destroyed. We need to do this as we don't want
1840    * the window geometry to be saved with the dialpad taken into account. */
1841   g_signal_connect (self, "destroy",
1842       G_CALLBACK (empathy_call_window_destroyed_cb), self);
1843   g_signal_connect (self, "configure-event",
1844       G_CALLBACK (empathy_call_window_configure_event_cb), self);
1845   g_signal_connect (self, "window-state-event",
1846       G_CALLBACK (empathy_call_window_configure_event_cb), self);
1847
1848   /* Don't display labels in both toolbars */
1849   gtk_toolbar_set_style (GTK_TOOLBAR (priv->toolbar), GTK_TOOLBAR_ICONS);
1850 }
1851
1852 /* Instead of specifying a width and a height, we specify only one size. That's
1853    because we want a square avatar icon.  */
1854 static void
1855 init_contact_avatar_with_size (EmpathyContact *contact,
1856     GtkWidget *image_widget,
1857     gint size)
1858 {
1859   GdkPixbuf *pixbuf_avatar = NULL;
1860
1861   if (contact != NULL)
1862     {
1863       pixbuf_avatar = empathy_pixbuf_avatar_from_contact_scaled (contact,
1864         size, size);
1865     }
1866
1867   if (pixbuf_avatar == NULL)
1868     {
1869       pixbuf_avatar = empathy_pixbuf_from_icon_name_sized (
1870           EMPATHY_IMAGE_AVATAR_DEFAULT, size);
1871     }
1872
1873   gtk_image_set_from_pixbuf (GTK_IMAGE (image_widget), pixbuf_avatar);
1874
1875   if (pixbuf_avatar != NULL)
1876     g_object_unref (pixbuf_avatar);
1877 }
1878
1879 static void
1880 set_window_title (EmpathyCallWindow *self)
1881 {
1882   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1883   gchar *tmp;
1884
1885   if (priv->contact != NULL)
1886     {
1887       /* translators: Call is a noun and %s is the contact name. This string
1888        * is used in the window title */
1889       tmp = g_strdup_printf (_("Call with %s"),
1890           empathy_contact_get_alias (priv->contact));
1891       gtk_window_set_title (GTK_WINDOW (self), tmp);
1892       g_free (tmp);
1893     }
1894   else
1895     {
1896       g_warning ("Unknown remote contact!");
1897     }
1898 }
1899
1900 static void
1901 set_remote_user_name (EmpathyCallWindow *self,
1902   EmpathyContact *contact)
1903 {
1904   const gchar *alias = empathy_contact_get_alias (contact);
1905   const gchar *status = empathy_contact_get_status (contact);
1906   gchar *label;
1907
1908   label = g_strdup_printf ("%s\n<small>%s</small>", alias, status);
1909   gtk_label_set_markup (GTK_LABEL (self->priv->remote_user_name_toolbar),
1910       label);
1911   g_free (label);
1912 }
1913
1914 static void
1915 contact_name_changed_cb (EmpathyContact *contact,
1916     GParamSpec *pspec,
1917     EmpathyCallWindow *self)
1918 {
1919   set_window_title (self);
1920   set_remote_user_name (self, contact);
1921 }
1922
1923 static void
1924 contact_presence_changed_cb (EmpathyContact *contact,
1925     GParamSpec *pspec,
1926     EmpathyCallWindow *self)
1927 {
1928   set_remote_user_name (self, contact);
1929 }
1930
1931 static void
1932 contact_avatar_changed_cb (EmpathyContact *contact,
1933     GParamSpec *pspec,
1934     EmpathyCallWindow *self)
1935 {
1936   int size;
1937   GtkAllocation allocation;
1938   GtkWidget *avatar_widget;
1939
1940   avatar_widget = self->priv->remote_user_avatar_widget;
1941
1942   gtk_widget_get_allocation (avatar_widget, &allocation);
1943   size = allocation.height;
1944
1945   if (size == 0)
1946     {
1947       /* the widget is not allocated yet, set a default size */
1948       size = MIN (REMOTE_CONTACT_AVATAR_DEFAULT_HEIGHT,
1949           REMOTE_CONTACT_AVATAR_DEFAULT_WIDTH);
1950     }
1951
1952   init_contact_avatar_with_size (contact, avatar_widget, size);
1953
1954   avatar_widget = self->priv->remote_user_avatar_toolbar;
1955
1956   gtk_widget_get_allocation (avatar_widget, &allocation);
1957   size = allocation.height;
1958
1959   if (size == 0)
1960     {
1961       /* the widget is not allocated yet, set a default size */
1962       size = SMALL_TOOLBAR_SIZE;
1963     }
1964
1965   init_contact_avatar_with_size (contact, avatar_widget, size);
1966 }
1967
1968 static void
1969 empathy_call_window_setup_avatars (EmpathyCallWindow *self,
1970     EmpathyCallHandler *handler)
1971 {
1972   EmpathyCallWindowPriv *priv = GET_PRIV (self);
1973
1974   tp_g_signal_connect_object (priv->contact, "notify::name",
1975       G_CALLBACK (contact_name_changed_cb), self, 0);
1976   tp_g_signal_connect_object (priv->contact, "notify::avatar",
1977     G_CALLBACK (contact_avatar_changed_cb), self, 0);
1978   tp_g_signal_connect_object (priv->contact, "notify::presence",
1979       G_CALLBACK (contact_presence_changed_cb), self, 0);
1980
1981   set_window_title (self);
1982   set_remote_user_name (self, priv->contact);
1983
1984   init_contact_avatar_with_size (priv->contact,
1985       priv->remote_user_avatar_widget,
1986       MIN (REMOTE_CONTACT_AVATAR_DEFAULT_WIDTH,
1987           REMOTE_CONTACT_AVATAR_DEFAULT_HEIGHT));
1988
1989   init_contact_avatar_with_size (priv->contact,
1990       priv->remote_user_avatar_toolbar,
1991       SMALL_TOOLBAR_SIZE);
1992
1993   /* The remote avatar is shown by default and will be hidden when we receive
1994      video from the remote side. */
1995   clutter_actor_hide (priv->video_output);
1996   gtk_widget_show (priv->remote_user_avatar_widget);
1997 }
1998
1999 static void
2000 update_send_codec (EmpathyCallWindow *self,
2001     gboolean audio)
2002 {
2003   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2004   FsCodec *codec;
2005   GtkWidget *widget;
2006   gchar *tmp;
2007
2008   if (audio)
2009     {
2010       codec = empathy_call_handler_get_send_audio_codec (priv->handler);
2011       widget = priv->acodec_encoding_label;
2012     }
2013   else
2014     {
2015       codec = empathy_call_handler_get_send_video_codec (priv->handler);
2016       widget = priv->vcodec_encoding_label;
2017     }
2018
2019   if (codec == NULL)
2020     return;
2021
2022   tmp = g_strdup_printf ("%s/%u", codec->encoding_name, codec->clock_rate);
2023   gtk_label_set_text (GTK_LABEL (widget), tmp);
2024   g_free (tmp);
2025 }
2026
2027 static void
2028 send_audio_codec_notify_cb (GObject *object,
2029     GParamSpec *pspec,
2030     gpointer user_data)
2031 {
2032   EmpathyCallWindow *self = user_data;
2033
2034   update_send_codec (self, TRUE);
2035 }
2036
2037 static void
2038 send_video_codec_notify_cb (GObject *object,
2039     GParamSpec *pspec,
2040     gpointer user_data)
2041 {
2042   EmpathyCallWindow *self = user_data;
2043
2044   update_send_codec (self, FALSE);
2045 }
2046
2047 static void
2048 update_recv_codec (EmpathyCallWindow *self,
2049     gboolean audio)
2050 {
2051   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2052   GList *codecs, *l;
2053   GtkWidget *widget;
2054   GString *str = NULL;
2055
2056   if (audio)
2057     {
2058       codecs = empathy_call_handler_get_recv_audio_codecs (priv->handler);
2059       widget = priv->acodec_decoding_label;
2060     }
2061   else
2062     {
2063       codecs = empathy_call_handler_get_recv_video_codecs (priv->handler);
2064       widget = priv->vcodec_decoding_label;
2065     }
2066
2067   if (codecs == NULL)
2068     return;
2069
2070   for (l = codecs; l != NULL; l = g_list_next (l))
2071     {
2072       FsCodec *codec = l->data;
2073
2074       if (str == NULL)
2075         str = g_string_new (NULL);
2076       else
2077         g_string_append (str, ", ");
2078
2079       g_string_append_printf (str, "%s/%u", codec->encoding_name,
2080           codec->clock_rate);
2081     }
2082
2083   gtk_label_set_text (GTK_LABEL (widget), str->str);
2084   g_string_free (str, TRUE);
2085 }
2086
2087 static void
2088 recv_audio_codecs_notify_cb (GObject *object,
2089     GParamSpec *pspec,
2090     gpointer user_data)
2091 {
2092   EmpathyCallWindow *self = user_data;
2093
2094   update_recv_codec (self, TRUE);
2095 }
2096
2097 static void
2098 recv_video_codecs_notify_cb (GObject *object,
2099     GParamSpec *pspec,
2100     gpointer user_data)
2101 {
2102   EmpathyCallWindow *self = user_data;
2103
2104   update_recv_codec (self, FALSE);
2105 }
2106
2107 static const gchar *
2108 candidate_type_to_str (FsCandidate *candidate)
2109 {
2110   switch (candidate->type)
2111     {
2112       case FS_CANDIDATE_TYPE_HOST:
2113         return "host";
2114       case FS_CANDIDATE_TYPE_SRFLX:
2115         return "server reflexive";
2116       case FS_CANDIDATE_TYPE_PRFLX:
2117         return "peer reflexive";
2118       case FS_CANDIDATE_TYPE_RELAY:
2119         return "relay";
2120       case FS_CANDIDATE_TYPE_MULTICAST:
2121         return "multicast";
2122     }
2123
2124   return NULL;
2125 }
2126
2127 static const gchar *
2128 candidate_type_to_desc (FsCandidate *candidate)
2129 {
2130   switch (candidate->type)
2131     {
2132       case FS_CANDIDATE_TYPE_HOST:
2133         return _("The IP address as seen by the machine");
2134       case FS_CANDIDATE_TYPE_SRFLX:
2135         return _("The IP address as seen by a server on the Internet");
2136       case FS_CANDIDATE_TYPE_PRFLX:
2137         return _("The IP address of the peer as seen by the other side");
2138       case FS_CANDIDATE_TYPE_RELAY:
2139         return _("The IP address of a relay server");
2140       case FS_CANDIDATE_TYPE_MULTICAST:
2141         return _("The IP address of the multicast group");
2142     }
2143
2144   return NULL;
2145 }
2146
2147 static void
2148 update_candidat_widget (EmpathyCallWindow *self,
2149     GtkWidget *label,
2150     GtkWidget *img,
2151     FsCandidate *candidate)
2152 {
2153   gchar *str;
2154
2155   g_assert (candidate != NULL);
2156   str = g_strdup_printf ("%s %u (%s)", candidate->ip,
2157       candidate->port, candidate_type_to_str (candidate));
2158
2159   gtk_label_set_text (GTK_LABEL (label), str);
2160   gtk_widget_set_tooltip_text (img, candidate_type_to_desc (candidate));
2161
2162   g_free (str);
2163 }
2164
2165 static void
2166 candidates_changed_cb (GObject *object,
2167     FsMediaType type,
2168     EmpathyCallWindow *self)
2169 {
2170   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2171   FsCandidate *candidate = NULL;
2172
2173   if (type == FS_MEDIA_TYPE_VIDEO)
2174     {
2175       /* Update remote candidate */
2176       candidate = empathy_call_handler_get_video_remote_candidate (
2177           priv->handler);
2178
2179       update_candidat_widget (self, priv->video_remote_candidate_label,
2180           priv->video_remote_candidate_info_img, candidate);
2181
2182       /* Update local candidate */
2183       candidate = empathy_call_handler_get_video_local_candidate (
2184           priv->handler);
2185
2186       update_candidat_widget (self, priv->video_local_candidate_label,
2187           priv->video_local_candidate_info_img, candidate);
2188     }
2189   else
2190     {
2191       /* Update remote candidate */
2192       candidate = empathy_call_handler_get_audio_remote_candidate (
2193           priv->handler);
2194
2195       update_candidat_widget (self, priv->audio_remote_candidate_label,
2196           priv->audio_remote_candidate_info_img, candidate);
2197
2198       /* Update local candidate */
2199       candidate = empathy_call_handler_get_audio_local_candidate (
2200           priv->handler);
2201
2202       update_candidat_widget (self, priv->audio_local_candidate_label,
2203           priv->audio_local_candidate_info_img, candidate);
2204     }
2205 }
2206
2207 static void
2208 empathy_call_window_constructed (GObject *object)
2209 {
2210   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (object);
2211   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2212   TpCallChannel *call;
2213   TpCallState state;
2214
2215   g_assert (priv->handler != NULL);
2216
2217   g_object_get (priv->handler, "call-channel", &call, NULL);
2218   state = tp_call_channel_get_state (call, NULL, NULL, NULL);
2219   priv->outgoing = (state == TP_CALL_STATE_PENDING_INITIATOR);
2220   tp_clear_object (&call);
2221
2222   priv->contact = empathy_call_handler_get_contact (priv->handler);
2223   g_assert (priv->contact != NULL);
2224   g_object_ref (priv->contact);
2225
2226   if (!empathy_contact_can_voip_video (priv->contact))
2227     {
2228       gtk_widget_set_sensitive (priv->video_call_button, FALSE);
2229       gtk_widget_set_sensitive (priv->camera_button, FALSE);
2230     }
2231
2232   empathy_call_window_setup_avatars (self, priv->handler);
2233   empathy_call_window_set_state_connecting (self);
2234
2235   if (!empathy_call_handler_has_initial_video (priv->handler))
2236     {
2237       gtk_toggle_tool_button_set_active (
2238           GTK_TOGGLE_TOOL_BUTTON (priv->camera_button), FALSE);
2239     }
2240   /* If call has InitialVideo, the preview will be started once the call has
2241    * been started (start_call()). */
2242
2243   update_send_codec (self, TRUE);
2244   update_send_codec (self, FALSE);
2245   update_recv_codec (self, TRUE);
2246   update_recv_codec (self, FALSE);
2247
2248   tp_g_signal_connect_object (priv->handler, "notify::send-audio-codec",
2249       G_CALLBACK (send_audio_codec_notify_cb), self, 0);
2250   tp_g_signal_connect_object (priv->handler, "notify::send-video-codec",
2251       G_CALLBACK (send_video_codec_notify_cb), self, 0);
2252   tp_g_signal_connect_object (priv->handler, "notify::recv-audio-codecs",
2253       G_CALLBACK (recv_audio_codecs_notify_cb), self, 0);
2254   tp_g_signal_connect_object (priv->handler, "notify::recv-video-codecs",
2255       G_CALLBACK (recv_video_codecs_notify_cb), self, 0);
2256
2257   tp_g_signal_connect_object (priv->handler, "candidates-changed",
2258       G_CALLBACK (candidates_changed_cb), self, 0);
2259 }
2260
2261 static void empathy_call_window_dispose (GObject *object);
2262 static void empathy_call_window_finalize (GObject *object);
2263
2264 static void
2265 empathy_call_window_set_property (GObject *object,
2266   guint property_id, const GValue *value, GParamSpec *pspec)
2267 {
2268   EmpathyCallWindowPriv *priv = GET_PRIV (object);
2269
2270   switch (property_id)
2271     {
2272       case PROP_CALL_HANDLER:
2273         priv->handler = g_value_dup_object (value);
2274         break;
2275       default:
2276         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
2277     }
2278 }
2279
2280 static void
2281 empathy_call_window_get_property (GObject *object,
2282   guint property_id, GValue *value, GParamSpec *pspec)
2283 {
2284   EmpathyCallWindowPriv *priv = GET_PRIV (object);
2285
2286   switch (property_id)
2287     {
2288       case PROP_CALL_HANDLER:
2289         g_value_set_object (value, priv->handler);
2290         break;
2291       default:
2292         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
2293     }
2294 }
2295
2296 static void
2297 empathy_call_window_class_init (
2298   EmpathyCallWindowClass *empathy_call_window_class)
2299 {
2300   GObjectClass *object_class = G_OBJECT_CLASS (empathy_call_window_class);
2301   GParamSpec *param_spec;
2302
2303   g_type_class_add_private (empathy_call_window_class,
2304     sizeof (EmpathyCallWindowPriv));
2305
2306   object_class->constructed = empathy_call_window_constructed;
2307   object_class->set_property = empathy_call_window_set_property;
2308   object_class->get_property = empathy_call_window_get_property;
2309
2310   object_class->dispose = empathy_call_window_dispose;
2311   object_class->finalize = empathy_call_window_finalize;
2312
2313   param_spec = g_param_spec_object ("handler",
2314     "handler", "The call handler",
2315     EMPATHY_TYPE_CALL_HANDLER,
2316     G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
2317   g_object_class_install_property (object_class,
2318     PROP_CALL_HANDLER, param_spec);
2319 }
2320
2321 void
2322 empathy_call_window_dispose (GObject *object)
2323 {
2324   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (object);
2325   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2326
2327   if (priv->dispose_has_run)
2328     return;
2329
2330   priv->dispose_has_run = TRUE;
2331
2332   if (priv->handler != NULL)
2333     {
2334       empathy_call_handler_stop_call (priv->handler);
2335       tp_clear_object (&priv->handler);
2336     }
2337
2338   if (priv->bus_message_source_id != 0)
2339     {
2340       g_source_remove (priv->bus_message_source_id);
2341       priv->bus_message_source_id = 0;
2342     }
2343
2344   if (priv->got_video_src > 0)
2345     {
2346       g_source_remove (priv->got_video_src);
2347       priv->got_video_src = 0;
2348     }
2349
2350   if (priv->inactivity_src > 0)
2351     {
2352       g_source_remove (priv->inactivity_src);
2353       priv->inactivity_src = 0;
2354     }
2355
2356   tp_clear_object (&priv->pipeline);
2357   tp_clear_object (&priv->video_input);
2358   tp_clear_object (&priv->audio_input);
2359   tp_clear_object (&priv->video_tee);
2360   tp_clear_object (&priv->ui_manager);
2361   tp_clear_object (&priv->fullscreen);
2362   tp_clear_object (&priv->camera_monitor);
2363   tp_clear_object (&priv->settings);
2364   tp_clear_object (&priv->sound_mgr);
2365   tp_clear_object (&priv->mic_menu);
2366   tp_clear_object (&priv->camera_menu);
2367   tp_clear_object (&priv->transitions);
2368
2369   g_list_free_full (priv->notifiers, g_object_unref);
2370
2371   if (priv->timer_id != 0)
2372     g_source_remove (priv->timer_id);
2373   priv->timer_id = 0;
2374
2375   tp_clear_object (&priv->contact);
2376
2377   G_OBJECT_CLASS (empathy_call_window_parent_class)->dispose (object);
2378 }
2379
2380 static void
2381 disconnect_video_output_motion_handler (EmpathyCallWindow *self)
2382 {
2383   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2384
2385   if (priv->video_output_motion_handler_id != 0)
2386     {
2387       g_signal_handler_disconnect (G_OBJECT (priv->video_container),
2388           priv->video_output_motion_handler_id);
2389       priv->video_output_motion_handler_id = 0;
2390     }
2391 }
2392
2393 void
2394 empathy_call_window_finalize (GObject *object)
2395 {
2396   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (object);
2397   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2398
2399   disconnect_video_output_motion_handler (self);
2400
2401   /* free any data held directly by the object here */
2402   g_mutex_free (priv->lock);
2403
2404   g_timer_destroy (priv->timer);
2405
2406   G_OBJECT_CLASS (empathy_call_window_parent_class)->finalize (object);
2407 }
2408
2409
2410 EmpathyCallWindow *
2411 empathy_call_window_new (EmpathyCallHandler *handler)
2412 {
2413   return EMPATHY_CALL_WINDOW (
2414     g_object_new (EMPATHY_TYPE_CALL_WINDOW, "handler", handler, NULL));
2415 }
2416
2417 void
2418 empathy_call_window_present (EmpathyCallWindow *self,
2419     EmpathyCallHandler *handler)
2420 {
2421   g_return_if_fail (EMPATHY_IS_CALL_HANDLER (handler));
2422
2423   tp_clear_object (&self->priv->handler);
2424   self->priv->handler = g_object_ref (handler);
2425   empathy_call_window_connect_handler (self);
2426
2427   empathy_window_present (GTK_WINDOW (self));
2428   empathy_call_window_restart_call (self);
2429 }
2430
2431 static void
2432 empathy_call_window_conference_added_cb (EmpathyCallHandler *handler,
2433   GstElement *conference, gpointer user_data)
2434 {
2435   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
2436   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2437   FsElementAddedNotifier *notifier;
2438   GKeyFile *keyfile;
2439
2440   DEBUG ("Conference added");
2441
2442   /* Add notifier to set the various element properties as needed */
2443   notifier = fs_element_added_notifier_new ();
2444   keyfile = fs_utils_get_default_element_properties (conference);
2445
2446   if (keyfile != NULL)
2447     fs_element_added_notifier_set_properties_from_keyfile (notifier, keyfile);
2448
2449   fs_element_added_notifier_add (notifier, GST_BIN (priv->pipeline));
2450
2451   priv->notifiers = g_list_prepend (priv->notifiers, notifier);
2452
2453   gst_bin_add (GST_BIN (priv->pipeline), conference);
2454   gst_element_set_state (conference, GST_STATE_PLAYING);
2455 }
2456
2457 static void
2458 empathy_call_window_conference_removed_cb (EmpathyCallHandler *handler,
2459   GstElement *conference, gpointer user_data)
2460 {
2461   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
2462   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2463
2464   gst_bin_remove (GST_BIN (priv->pipeline), conference);
2465   gst_element_set_state (conference, GST_STATE_NULL);
2466 }
2467
2468 static gboolean
2469 empathy_call_window_reset_pipeline (EmpathyCallWindow *self)
2470 {
2471   GstStateChangeReturn state_change_return;
2472   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2473
2474   if (priv->pipeline == NULL)
2475     return TRUE;
2476
2477   if (priv->bus_message_source_id != 0)
2478     {
2479       g_source_remove (priv->bus_message_source_id);
2480       priv->bus_message_source_id = 0;
2481     }
2482
2483   state_change_return = gst_element_set_state (priv->pipeline, GST_STATE_NULL);
2484
2485   if (state_change_return == GST_STATE_CHANGE_SUCCESS ||
2486         state_change_return == GST_STATE_CHANGE_NO_PREROLL)
2487     {
2488       if (priv->pipeline != NULL)
2489         g_object_unref (priv->pipeline);
2490       priv->pipeline = NULL;
2491
2492       if (priv->audio_output != NULL)
2493         g_object_unref (priv->audio_output);
2494       priv->audio_output = NULL;
2495       priv->audio_output_added = FALSE;
2496
2497       if (priv->video_tee != NULL)
2498         g_object_unref (priv->video_tee);
2499       priv->video_tee = NULL;
2500
2501       if (priv->video_preview != NULL)
2502         clutter_actor_destroy (priv->video_preview);
2503       priv->video_preview = NULL;
2504
2505       /* If we destroy the preview while it's being dragged, we won't
2506        * get the ::drag-end signal, so manually destroy the clone */
2507       if (priv->drag_preview != NULL)
2508         {
2509           clutter_actor_destroy (priv->drag_preview);
2510           empathy_call_window_show_preview_rectangles (self, FALSE);
2511           priv->drag_preview = NULL;
2512         }
2513
2514       priv->funnel = NULL;
2515
2516       create_pipeline (self);
2517       /* Call will be started when user will hit the 'redial' button */
2518       priv->start_call_when_playing = FALSE;
2519       gst_element_set_state (priv->pipeline, GST_STATE_PAUSED);
2520
2521       return TRUE;
2522     }
2523   else
2524     {
2525       g_message ("Error: could not destroy pipeline. Closing call window");
2526       gtk_widget_destroy (GTK_WIDGET (self));
2527
2528       return FALSE;
2529     }
2530 }
2531
2532 static void
2533 reset_details_pane (EmpathyCallWindow *self)
2534 {
2535   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2536
2537   gtk_label_set_text (GTK_LABEL (priv->vcodec_encoding_label), _("Unknown"));
2538   gtk_label_set_text (GTK_LABEL (priv->acodec_encoding_label), _("Unknown"));
2539   gtk_label_set_text (GTK_LABEL (priv->vcodec_decoding_label), _("Unknown"));
2540   gtk_label_set_text (GTK_LABEL (priv->acodec_decoding_label), _("Unknown"));
2541 }
2542
2543 static gboolean
2544 empathy_call_window_disconnected (EmpathyCallWindow *self,
2545     gboolean restart)
2546 {
2547   gboolean could_disconnect = FALSE;
2548   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2549   gboolean could_reset_pipeline;
2550
2551   /* Leave full screen mode if needed */
2552   gtk_window_unfullscreen (GTK_WINDOW (self));
2553
2554   gtk_action_set_sensitive (priv->menu_fullscreen, FALSE);
2555   gtk_widget_set_sensitive (priv->dtmf_panel, FALSE);
2556
2557   could_reset_pipeline = empathy_call_window_reset_pipeline (self);
2558
2559   if (priv->call_state == CONNECTING)
2560       empathy_sound_manager_stop (priv->sound_mgr, EMPATHY_SOUND_PHONE_OUTGOING);
2561
2562   if (priv->call_state != REDIALING)
2563     priv->call_state = DISCONNECTED;
2564
2565   /* Show the toolbar */
2566   clutter_state_set_state (priv->transitions, "fade-in");
2567
2568   if (could_reset_pipeline)
2569     {
2570       g_mutex_lock (priv->lock);
2571
2572       g_timer_stop (priv->timer);
2573
2574       if (priv->timer_id != 0)
2575         g_source_remove (priv->timer_id);
2576       priv->timer_id = 0;
2577
2578       g_mutex_unlock (priv->lock);
2579
2580       if (!restart)
2581         /* We are about to destroy the window, no need to update it or create
2582          * a video preview */
2583         return TRUE;
2584
2585       empathy_call_window_status_message (self, _("Disconnected"));
2586
2587       empathy_call_window_show_hangup_button (self, FALSE);
2588
2589       /* Unsensitive the camera and mic button */
2590       gtk_widget_set_sensitive (priv->camera_button, FALSE);
2591       gtk_widget_set_sensitive (priv->mic_button, FALSE);
2592
2593       /* Be sure that the mic button is enabled */
2594       gtk_toggle_tool_button_set_active (
2595           GTK_TOGGLE_TOOL_BUTTON (priv->mic_button), TRUE);
2596
2597       if (priv->camera_state == CAMERA_STATE_ON)
2598         {
2599           /* Restart the preview with the new pipeline. */
2600           display_video_preview (self, TRUE);
2601         }
2602
2603       /* destroy the video output; it will be recreated when we'll redial */
2604       disconnect_video_output_motion_handler (self);
2605       if (priv->video_output != NULL)
2606         clutter_actor_destroy (priv->video_output);
2607       priv->video_output = NULL;
2608       if (priv->got_video_src > 0)
2609         {
2610           g_source_remove (priv->got_video_src);
2611           priv->got_video_src = 0;
2612         }
2613
2614       gtk_widget_show (priv->remote_user_avatar_widget);
2615
2616       reset_details_pane (self);
2617
2618       priv->sending_video = FALSE;
2619       priv->call_started = FALSE;
2620
2621       could_disconnect = TRUE;
2622
2623       /* TODO: display the self avatar of the preview (depends if the "Always
2624        * Show Video Preview" is enabled or not) */
2625     }
2626
2627   return could_disconnect;
2628 }
2629
2630
2631 static void
2632 empathy_call_window_channel_closed_cb (EmpathyCallHandler *handler,
2633     gpointer user_data)
2634 {
2635   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
2636   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2637
2638   if (empathy_call_window_disconnected (self, TRUE) &&
2639       priv->call_state == REDIALING)
2640       empathy_call_window_restart_call (self);
2641 }
2642
2643 static gboolean
2644 empathy_call_window_content_is_raw (TfContent *content)
2645 {
2646   FsConference *conference;
2647   gboolean israw;
2648
2649   g_object_get (content, "fs-conference", &conference, NULL);
2650   g_assert (conference != NULL);
2651
2652   /* FIXME: Ugly hack, update when moving a packetization property into
2653    * farstream */
2654   israw = g_str_has_prefix (GST_OBJECT_NAME (conference), "fsrawconf");
2655   gst_object_unref (conference);
2656
2657   return israw;
2658 }
2659
2660 static gboolean
2661 empathy_call_window_content_removed_cb (EmpathyCallHandler *handler,
2662     TfContent *content,
2663     EmpathyCallWindow *self)
2664 {
2665   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2666   FsMediaType media_type;
2667
2668   DEBUG ("removing content");
2669
2670   g_object_get (content, "media-type", &media_type, NULL);
2671
2672   /*
2673    * This assumes that there is only one video stream per channel...
2674    */
2675
2676   if ((guint) media_type == FS_MEDIA_TYPE_VIDEO)
2677     {
2678       if (priv->funnel != NULL)
2679         {
2680           GstElement *output;
2681
2682           output = priv->video_output_sink;
2683
2684           gst_element_set_state (output, GST_STATE_NULL);
2685           gst_element_set_state (priv->funnel, GST_STATE_NULL);
2686
2687           gst_bin_remove (GST_BIN (priv->pipeline), output);
2688           gst_bin_remove (GST_BIN (priv->pipeline), priv->funnel);
2689           priv->funnel = NULL;
2690         }
2691     }
2692   else if (media_type == FS_MEDIA_TYPE_AUDIO)
2693     {
2694       if (priv->audio_output != NULL)
2695         {
2696           gst_element_set_state (priv->audio_output, GST_STATE_NULL);
2697
2698           if (priv->audio_output_added)
2699             gst_bin_remove (GST_BIN (priv->pipeline), priv->audio_output);
2700           priv->audio_output = NULL;
2701           priv->audio_output_added = FALSE;
2702         }
2703     }
2704   else
2705     {
2706       g_assert_not_reached ();
2707     }
2708
2709   return TRUE;
2710 }
2711
2712 static void
2713 empathy_call_window_framerate_changed_cb (EmpathyCallHandler *handler,
2714     guint framerate,
2715     EmpathyCallWindow *self)
2716 {
2717   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2718
2719   DEBUG ("Framerate changed to %u", framerate);
2720
2721   if (priv->video_input != NULL)
2722     empathy_video_src_set_framerate (priv->video_input, framerate);
2723 }
2724
2725 static void
2726 empathy_call_window_resolution_changed_cb (EmpathyCallHandler *handler,
2727     guint width,
2728     guint height,
2729     EmpathyCallWindow *self)
2730 {
2731   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2732
2733   DEBUG ("Resolution changed to %ux%u", width, height);
2734
2735   if (priv->video_input != NULL)
2736     {
2737       empathy_video_src_set_resolution (priv->video_input, width, height);
2738     }
2739 }
2740
2741 /* Called with global lock held */
2742 static GstPad *
2743 empathy_call_window_get_video_sink_pad (EmpathyCallWindow *self)
2744 {
2745   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2746   GstPad *pad;
2747   GstElement *output;
2748
2749   if (priv->funnel == NULL)
2750     {
2751       output = priv->video_output_sink;
2752
2753       priv->funnel = gst_element_factory_make ("fsfunnel", NULL);
2754
2755       if (!priv->funnel)
2756         {
2757           g_warning ("Could not create fsfunnel");
2758           return NULL;
2759         }
2760
2761       if (!gst_bin_add (GST_BIN (priv->pipeline), priv->funnel))
2762         {
2763           gst_object_unref (priv->funnel);
2764           priv->funnel = NULL;
2765           g_warning ("Could  not add funnel to pipeline");
2766           return NULL;
2767         }
2768
2769       if (!gst_bin_add (GST_BIN (priv->pipeline), output))
2770         {
2771           g_warning ("Could not add the video output widget to the pipeline");
2772           goto error;
2773         }
2774
2775       if (!gst_element_link (priv->funnel, output))
2776         {
2777           g_warning ("Could not link output sink to funnel");
2778           goto error_output_added;
2779         }
2780
2781       if (gst_element_set_state (output, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE)
2782         {
2783           g_warning ("Could not start video sink");
2784           goto error_output_added;
2785         }
2786
2787       if (gst_element_set_state (priv->funnel, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE)
2788         {
2789           g_warning ("Could not start funnel");
2790           goto error_output_added;
2791         }
2792     }
2793
2794   pad = gst_element_get_request_pad (priv->funnel, "sink%d");
2795
2796   if (!pad)
2797     g_warning ("Could not get request pad from funnel");
2798
2799   return pad;
2800
2801
2802  error_output_added:
2803
2804   gst_element_set_locked_state (priv->funnel, TRUE);
2805   gst_element_set_locked_state (output, TRUE);
2806
2807   gst_element_set_state (priv->funnel, GST_STATE_NULL);
2808   gst_element_set_state (output, GST_STATE_NULL);
2809
2810   gst_bin_remove (GST_BIN (priv->pipeline), output);
2811   gst_element_set_locked_state (output, FALSE);
2812
2813  error:
2814
2815   gst_bin_remove (GST_BIN (priv->pipeline), priv->funnel);
2816   priv->funnel = NULL;
2817
2818   return NULL;
2819 }
2820
2821 /* Called with global lock held */
2822 static GstPad *
2823 empathy_call_window_get_audio_sink_pad (EmpathyCallWindow *self,
2824   TfContent *content)
2825 {
2826   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2827   GstPad *pad;
2828   GstPadTemplate *template;
2829
2830   if (!priv->audio_output_added)
2831     {
2832       if (!gst_bin_add (GST_BIN (priv->pipeline), priv->audio_output))
2833         {
2834           g_warning ("Could not add audio sink to pipeline");
2835           g_object_unref (priv->audio_output);
2836           goto error_add_output;
2837         }
2838
2839       if (gst_element_set_state (priv->audio_output, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE)
2840         {
2841           g_warning ("Could not start audio sink");
2842           goto error;
2843         }
2844     }
2845
2846   template = gst_element_class_get_pad_template (
2847     GST_ELEMENT_GET_CLASS (priv->audio_output), "sink%d");
2848
2849   pad = gst_element_request_pad (priv->audio_output,
2850     template, NULL, NULL);
2851
2852   if (pad == NULL)
2853     {
2854       g_warning ("Could not get sink pad from sink");
2855       return NULL;
2856     }
2857
2858   return pad;
2859
2860 error:
2861   gst_element_set_locked_state (priv->audio_output, TRUE);
2862   gst_element_set_state (priv->audio_output, GST_STATE_NULL);
2863   gst_bin_remove (GST_BIN (priv->pipeline), priv->audio_output);
2864   priv->audio_output = NULL;
2865
2866 error_add_output:
2867
2868   return NULL;
2869 }
2870
2871 static gboolean
2872 empathy_call_window_update_timer (gpointer user_data)
2873 {
2874   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
2875   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2876   const gchar *status;
2877   gchar *str;
2878   gdouble time_;
2879
2880   time_ = g_timer_elapsed (priv->timer, NULL);
2881
2882   if (priv->call_state == HELD)
2883     status = _("On hold");
2884   else if (!gtk_toggle_tool_button_get_active (
2885       GTK_TOGGLE_TOOL_BUTTON (priv->mic_button)))
2886     status = _("Mute");
2887   else
2888     status = _("Duration");
2889
2890   /* Translators: 'status - minutes:seconds' the caller has been connected */
2891   str = g_strdup_printf (_("%s — %d:%02dm"),
2892       status,
2893       (int) time_ / 60, (int) time_ % 60);
2894   empathy_call_window_status_message (self, str);
2895   g_free (str);
2896
2897   return TRUE;
2898 }
2899
2900 enum
2901 {
2902   EMP_RESPONSE_BALANCE
2903 };
2904
2905 static void
2906 on_error_infobar_response_cb (GtkInfoBar *info_bar,
2907     gint response_id,
2908     gpointer user_data)
2909 {
2910   switch (response_id)
2911     {
2912       case GTK_RESPONSE_CLOSE:
2913         gtk_widget_destroy (GTK_WIDGET (info_bar));
2914         break;
2915       case EMP_RESPONSE_BALANCE:
2916         empathy_url_show (GTK_WIDGET (info_bar),
2917             g_object_get_data (G_OBJECT (info_bar), "uri"));
2918         break;
2919     }
2920 }
2921
2922 static void
2923 display_error (EmpathyCallWindow *self,
2924     const gchar *img,
2925     const gchar *title,
2926     const gchar *desc,
2927     const gchar *details,
2928     const gchar *button_text,
2929     const gchar *uri,
2930     gint button_response)
2931 {
2932   EmpathyCallWindowPriv *priv = GET_PRIV (self);
2933   GtkWidget *info_bar;
2934   GtkWidget *content_area;
2935   GtkWidget *hbox;
2936   GtkWidget *vbox;
2937   GtkWidget *image;
2938   GtkWidget *label;
2939   gchar *txt;
2940
2941   /* Create info bar */
2942   info_bar = gtk_info_bar_new ();
2943
2944   if (button_text != NULL)
2945     {
2946       gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
2947           button_text, button_response);
2948       g_object_set_data_full (G_OBJECT (info_bar),
2949           "uri", g_strdup (uri), g_free);
2950     }
2951
2952   gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
2953       GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE);
2954
2955   gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar), GTK_MESSAGE_WARNING);
2956
2957   content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
2958
2959   /* hbox containing the image and the messages vbox */
2960   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3);
2961   gtk_container_add (GTK_CONTAINER (content_area), hbox);
2962
2963   /* Add image */
2964   image = gtk_image_new_from_icon_name (img, GTK_ICON_SIZE_DIALOG);
2965   gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
2966
2967   /* vbox containing the main message and the details expander */
2968   vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 3);
2969   gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
2970
2971   /* Add text */
2972   txt = g_strdup_printf ("<b>%s</b>\n%s", title, desc);
2973
2974   label = gtk_label_new (NULL);
2975   gtk_label_set_markup (GTK_LABEL (label), txt);
2976   gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
2977   gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
2978   g_free (txt);
2979
2980   gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
2981
2982   /* Add details */
2983   if (details != NULL)
2984     {
2985       GtkWidget *expander;
2986
2987       expander = gtk_expander_new (_("Technical Details"));
2988
2989       txt = g_strdup_printf ("<i>%s</i>", details);
2990
2991       label = gtk_label_new (NULL);
2992       gtk_label_set_markup (GTK_LABEL (label), txt);
2993       gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
2994       gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
2995       g_free (txt);
2996
2997       gtk_container_add (GTK_CONTAINER (expander), label);
2998       gtk_box_pack_start (GTK_BOX (vbox), expander, TRUE, TRUE, 0);
2999     }
3000
3001   g_signal_connect (info_bar, "response",
3002       G_CALLBACK (on_error_infobar_response_cb), NULL);
3003
3004   gtk_box_pack_start (GTK_BOX (priv->errors_vbox), info_bar,
3005       FALSE, FALSE, CONTENT_HBOX_CHILDREN_PACKING_PADDING);
3006   gtk_widget_show_all (info_bar);
3007 }
3008
3009 #if 0
3010 static gchar *
3011 media_stream_error_to_txt (EmpathyCallWindow *self,
3012     TpCallChannel *call,
3013     gboolean audio,
3014     TpMediaStreamError error)
3015 {
3016   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3017   const gchar *cm = NULL;
3018   gchar *url;
3019   gchar *result;
3020
3021   switch (error)
3022     {
3023       case TP_MEDIA_STREAM_ERROR_CODEC_NEGOTIATION_FAILED:
3024         if (audio)
3025           return g_strdup_printf (
3026               _("%s's software does not understand any of the audio formats "
3027                 "supported by your computer"),
3028             empathy_contact_get_alias (priv->contact));
3029         else
3030           return g_strdup_printf (
3031               _("%s's software does not understand any of the video formats "
3032                 "supported by your computer"),
3033             empathy_contact_get_alias (priv->contact));
3034
3035       case TP_MEDIA_STREAM_ERROR_CONNECTION_FAILED:
3036         return g_strdup_printf (
3037             _("Can't establish a connection to %s. "
3038               "One of you might be on a network that does not allow "
3039               "direct connections."),
3040           empathy_contact_get_alias (priv->contact));
3041
3042       case TP_MEDIA_STREAM_ERROR_NETWORK_ERROR:
3043           return g_strdup (_("There was a failure on the network"));
3044
3045       case TP_MEDIA_STREAM_ERROR_NO_CODECS:
3046         if (audio)
3047           return g_strdup (_("The audio formats necessary for this call "
3048                 "are not installed on your computer"));
3049         else
3050           return g_strdup (_("The video formats necessary for this call "
3051                 "are not installed on your computer"));
3052
3053       case TP_MEDIA_STREAM_ERROR_INVALID_CM_BEHAVIOR:
3054         tp_connection_parse_object_path (
3055             tp_channel_borrow_connection (TP_CHANNEL (call)),
3056             NULL, &cm);
3057
3058         url = g_strdup_printf ("http://bugs.freedesktop.org/enter_bug.cgi?"
3059             "product=Telepathy&amp;component=%s", cm);
3060
3061         result = g_strdup_printf (
3062             _("Something unexpected happened in a Telepathy component. "
3063               "Please <a href=\"%s\">report this bug</a> and attach "
3064               "logs gathered from the 'Debug' window in the Help menu."), url);
3065
3066         g_free (url);
3067         g_free (cm);
3068         return result;
3069
3070       case TP_MEDIA_STREAM_ERROR_MEDIA_ERROR:
3071         return g_strdup (_("There was a failure in the call engine"));
3072
3073       case TP_MEDIA_STREAM_ERROR_EOS:
3074         return g_strdup (_("The end of the stream was reached"));
3075
3076       case TP_MEDIA_STREAM_ERROR_UNKNOWN:
3077       default:
3078         return NULL;
3079     }
3080 }
3081
3082 static void
3083 empathy_call_window_stream_error (EmpathyCallWindow *self,
3084     TpCallChannel *call,
3085     gboolean audio,
3086     guint code,
3087     const gchar *msg,
3088     const gchar *icon,
3089     const gchar *title)
3090 {
3091   gchar *desc;
3092
3093   desc = media_stream_error_to_txt (self, call, audio, code);
3094   if (desc == NULL)
3095     {
3096       /* No description, use the error message. That's not great as it's not
3097        * localized but it's better than nothing. */
3098       display_error (self, call, icon, title, msg, NULL);
3099     }
3100   else
3101     {
3102       display_error (self, call, icon, title, desc, msg);
3103       g_free (desc);
3104     }
3105 }
3106
3107 static void
3108 empathy_call_window_audio_stream_error (TpCallChannel *call,
3109     guint code,
3110     const gchar *msg,
3111     EmpathyCallWindow *self)
3112 {
3113   empathy_call_window_stream_error (self, call, TRUE, code, msg,
3114       "gnome-stock-mic", _("Can't establish audio stream"));
3115 }
3116
3117 static void
3118 empathy_call_window_video_stream_error (TpCallChannel *call,
3119     guint code,
3120     const gchar *msg,
3121     EmpathyCallWindow *self)
3122 {
3123   empathy_call_window_stream_error (self, call, FALSE, code, msg,
3124       "camera-web", _("Can't establish video stream"));
3125 }
3126 #endif
3127
3128 static void
3129 show_balance_error (EmpathyCallWindow *self)
3130 {
3131   TpChannel *call;
3132   TpConnection *conn;
3133   gchar *balance, *tmp;
3134   const gchar *uri, *currency;
3135   gint amount;
3136   guint scale;
3137
3138   g_object_get (self->priv->handler,
3139       "call-channel", &call,
3140       NULL);
3141
3142   conn = tp_channel_borrow_connection (call);
3143   g_object_unref (call);
3144
3145   uri = tp_connection_get_balance_uri (conn);
3146
3147   if (!tp_connection_get_balance (conn, &amount, &scale, &currency))
3148     {
3149       /* unknown balance */
3150       balance = g_strdup ("(--)");
3151     }
3152   else
3153     {
3154       char *money = empathy_format_currency (amount, scale, currency);
3155
3156       balance = g_strdup_printf ("%s %s",
3157           currency, money);
3158       g_free (money);
3159     }
3160
3161   tmp = g_strdup_printf (_("Your current balance is %s."), balance),
3162
3163   display_error (self,
3164       NULL,
3165       _("Sorry, you don’t have enough credit for that call."),
3166       tmp, NULL,
3167       _("Top Up"),
3168       uri,
3169       EMP_RESPONSE_BALANCE);
3170
3171   g_free (tmp);
3172   g_free (balance);
3173 }
3174
3175 static void
3176 empathy_call_window_state_changed_cb (EmpathyCallHandler *handler,
3177     TpCallState state,
3178     gchar *reason,
3179     EmpathyCallWindow *self)
3180 {
3181   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3182   TpCallChannel *call;
3183   gboolean can_send_video;
3184
3185   if (state == TP_CALL_STATE_ENDED &&
3186       !tp_strdiff (reason, TP_ERROR_STR_INSUFFICIENT_BALANCE))
3187     {
3188       show_balance_error (self);
3189       return;
3190     }
3191
3192   if (state != TP_CALL_STATE_ACCEPTED)
3193     return;
3194
3195   if (priv->call_state == CONNECTED)
3196     return;
3197
3198   g_timer_start (priv->timer);
3199   priv->call_state = CONNECTED;
3200
3201   empathy_sound_manager_stop (priv->sound_mgr, EMPATHY_SOUND_PHONE_OUTGOING);
3202
3203   can_send_video = priv->video_input != NULL &&
3204     empathy_contact_can_voip_video (priv->contact) &&
3205     empathy_camera_monitor_get_available (priv->camera_monitor);
3206
3207   g_object_get (priv->handler, "call-channel", &call, NULL);
3208
3209   if (tp_call_channel_has_dtmf (call))
3210     gtk_widget_set_sensitive (priv->dtmf_panel, TRUE);
3211
3212   if (priv->video_input == NULL)
3213     empathy_call_window_set_send_video (self, CAMERA_STATE_OFF);
3214
3215   gtk_widget_set_sensitive (priv->camera_button, can_send_video);
3216
3217   empathy_call_window_show_hangup_button (self, TRUE);
3218
3219   gtk_widget_set_sensitive (priv->mic_button, TRUE);
3220
3221   clutter_actor_hide (priv->video_output);
3222   gtk_widget_show (priv->remote_user_avatar_widget);
3223
3224   g_object_unref (call);
3225
3226   g_mutex_lock (priv->lock);
3227
3228   priv->timer_id = g_timeout_add_seconds (1,
3229     empathy_call_window_update_timer, self);
3230
3231   g_mutex_unlock (priv->lock);
3232
3233   empathy_call_window_update_timer (self);
3234
3235   gtk_action_set_sensitive (priv->menu_fullscreen, TRUE);
3236 }
3237
3238 static gboolean
3239 empathy_call_window_show_video_output_cb (gpointer user_data)
3240 {
3241   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
3242
3243   if (self->priv->video_output != NULL)
3244     {
3245       gtk_widget_hide (self->priv->remote_user_avatar_widget);
3246       clutter_actor_show (self->priv->video_output);
3247       empathy_call_window_raise_actors (self);
3248     }
3249
3250   return FALSE;
3251 }
3252
3253 static gboolean
3254 empathy_call_window_check_video_cb (gpointer data)
3255 {
3256   EmpathyCallWindow *self = data;
3257
3258   if (self->priv->got_video)
3259     {
3260       self->priv->got_video = FALSE;
3261       return TRUE;
3262     }
3263
3264   /* No video in the last N seconds, display the remote avatar */
3265   empathy_call_window_show_video_output (self, FALSE);
3266
3267   return TRUE;
3268 }
3269
3270 /* Called from the streaming thread */
3271 static gboolean
3272 empathy_call_window_video_probe_cb (GstPad *pad,
3273     GstMiniObject *mini_obj,
3274     EmpathyCallWindow *self)
3275 {
3276   /* Ignore events */
3277   if (GST_IS_EVENT (mini_obj))
3278     return TRUE;
3279
3280   if (G_UNLIKELY (!self->priv->got_video))
3281     {
3282       /* show the remote video */
3283       g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
3284           empathy_call_window_show_video_output_cb,
3285           g_object_ref (self), g_object_unref);
3286
3287       self->priv->got_video = TRUE;
3288     }
3289
3290   return TRUE;
3291 }
3292
3293 /* Called from the streaming thread */
3294 static gboolean
3295 empathy_call_window_src_added_cb (EmpathyCallHandler *handler,
3296   TfContent *content, GstPad *src, gpointer user_data)
3297 {
3298   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
3299   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3300   gboolean retval = FALSE;
3301   guint media_type;
3302
3303   GstPad *pad;
3304
3305   g_mutex_lock (priv->lock);
3306
3307   g_object_get (content, "media-type", &media_type, NULL);
3308
3309   switch (media_type)
3310     {
3311       case TP_MEDIA_STREAM_TYPE_AUDIO:
3312         pad = empathy_call_window_get_audio_sink_pad (self, content);
3313         break;
3314       case TP_MEDIA_STREAM_TYPE_VIDEO:
3315         g_idle_add (empathy_call_window_show_video_output_cb, self);
3316         pad = empathy_call_window_get_video_sink_pad (self);
3317
3318         gst_pad_add_data_probe (src,
3319             G_CALLBACK (empathy_call_window_video_probe_cb), self);
3320         if (priv->got_video_src > 0)
3321           g_source_remove (priv->got_video_src);
3322         priv->got_video_src = g_timeout_add_seconds (1,
3323             empathy_call_window_check_video_cb, self);
3324         break;
3325       default:
3326         g_assert_not_reached ();
3327     }
3328
3329   if (pad == NULL)
3330     goto out;
3331
3332   if (GST_PAD_LINK_FAILED (gst_pad_link (src, pad)))
3333       g_warning ("Could not link %s sink pad",
3334           media_type == TP_MEDIA_STREAM_TYPE_AUDIO ? "audio" : "video");
3335   else
3336       retval = TRUE;
3337
3338   gst_object_unref (pad);
3339
3340  out:
3341
3342   /* If no sink could be linked, try to add fakesink to prevent the whole call
3343    * aborting */
3344
3345   if (!retval)
3346     {
3347       GstElement *fakesink = gst_element_factory_make ("fakesink", NULL);
3348
3349       if (gst_bin_add (GST_BIN (priv->pipeline), fakesink))
3350         {
3351           GstPad *sinkpad = gst_element_get_static_pad (fakesink, "sink");
3352           if (gst_element_set_state (fakesink, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE ||
3353               GST_PAD_LINK_FAILED (gst_pad_link (src, sinkpad)))
3354             {
3355               gst_element_set_locked_state (fakesink, TRUE);
3356               gst_element_set_state (fakesink, GST_STATE_NULL);
3357               gst_bin_remove (GST_BIN (priv->pipeline), fakesink);
3358             }
3359           else
3360             {
3361               DEBUG ("Could not link real sink, linked fakesink instead");
3362             }
3363           gst_object_unref (sinkpad);
3364         }
3365       else
3366         {
3367           gst_object_unref (fakesink);
3368         }
3369     }
3370
3371
3372   g_mutex_unlock (priv->lock);
3373
3374   return TRUE;
3375 }
3376
3377 static void
3378 empathy_call_window_prepare_audio_output (EmpathyCallWindow *self,
3379   TfContent *content)
3380 {
3381   EmpathyCallWindowPriv *priv = self->priv;
3382
3383   g_assert (priv->audio_output_added == FALSE);
3384   g_assert (priv->audio_output == FALSE);
3385
3386   priv->audio_output = empathy_audio_sink_new ();
3387   g_object_ref_sink (priv->audio_output);
3388
3389   /* volume button to output volume linking */
3390   g_object_bind_property (priv->audio_output, "volume",
3391     priv->volume_button, "value",
3392     G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
3393
3394   g_object_bind_property_full (content, "requested-output-volume",
3395     priv->audio_output, "volume",
3396     G_BINDING_DEFAULT,
3397     audio_control_volume_to_element,
3398     element_volume_to_audio_control,
3399     NULL, NULL);
3400
3401   /* Link volumes together, sync the current audio input volume property
3402     * back to farstream first */
3403   g_object_bind_property_full (priv->audio_output, "volume",
3404     content, "reported-output-volume",
3405     G_BINDING_SYNC_CREATE,
3406     element_volume_to_audio_control,
3407     audio_control_volume_to_element,
3408     NULL, NULL);
3409
3410   /* For raw audio conferences assume that the producer of the raw data
3411    * has already processed it, so turn off any echo cancellation and any
3412    * other audio improvements that come with it */
3413   empathy_audio_sink_set_echo_cancel (
3414     EMPATHY_GST_AUDIO_SINK (priv->audio_output),
3415     !empathy_call_window_content_is_raw (content));
3416 }
3417
3418
3419 static gboolean
3420 empathy_call_window_content_added_cb (EmpathyCallHandler *handler,
3421   TfContent *content, gpointer user_data)
3422 {
3423   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
3424   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3425   GstPad *sink, *pad;
3426   FsMediaType media_type;
3427   gboolean retval = FALSE;
3428
3429   g_object_get (content, "media-type", &media_type, "sink-pad", &sink, NULL);
3430   g_assert (sink != NULL);
3431
3432   switch (media_type)
3433     {
3434       case FS_MEDIA_TYPE_AUDIO:
3435
3436         /* For raw audio conferences assume that the receiver of the raw data
3437          * wants it unprocessed, so turn off any echo cancellation and any
3438          * other audio improvements that come with it */
3439         empathy_audio_src_set_echo_cancel (
3440           EMPATHY_GST_AUDIO_SRC (priv->audio_input),
3441           !empathy_call_window_content_is_raw (content));
3442
3443         /* Link volumes together, sync the current audio input volume property
3444          * back to farstream first */
3445         g_object_bind_property_full (content, "requested-input-volume",
3446           priv->audio_input, "volume",
3447           G_BINDING_DEFAULT,
3448           audio_control_volume_to_element,
3449           element_volume_to_audio_control,
3450           NULL, NULL);
3451
3452         g_object_bind_property_full (priv->audio_input, "volume",
3453           content, "reported-input-volume",
3454           G_BINDING_SYNC_CREATE,
3455           element_volume_to_audio_control,
3456           audio_control_volume_to_element,
3457           NULL, NULL);
3458
3459         if (!gst_bin_add (GST_BIN (priv->pipeline), priv->audio_input))
3460           {
3461             g_warning ("Could not add audio source to pipeline");
3462             break;
3463           }
3464
3465         pad = gst_element_get_static_pad (priv->audio_input, "src");
3466         if (!pad)
3467           {
3468             gst_bin_remove (GST_BIN (priv->pipeline), priv->audio_input);
3469             g_warning ("Could not get source pad from audio source");
3470             break;
3471           }
3472
3473         if (GST_PAD_LINK_FAILED (gst_pad_link (pad, sink)))
3474           {
3475             gst_bin_remove (GST_BIN (priv->pipeline), priv->audio_input);
3476             gst_object_unref (pad);
3477             g_warning ("Could not link audio source to farsight");
3478             break;
3479           }
3480         gst_object_unref (pad);
3481
3482         if (gst_element_set_state (priv->audio_input, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE)
3483           {
3484             g_warning ("Could not start audio source");
3485             gst_element_set_state (priv->audio_input, GST_STATE_NULL);
3486             gst_bin_remove (GST_BIN (priv->pipeline), priv->audio_input);
3487             break;
3488           }
3489
3490         /* Prepare our audio output, not added yet though */
3491         empathy_call_window_prepare_audio_output (self, content);
3492
3493         retval = TRUE;
3494         break;
3495       case FS_MEDIA_TYPE_VIDEO:
3496         if (priv->video_tee != NULL)
3497           {
3498             pad = gst_element_get_request_pad (priv->video_tee, "src%d");
3499             if (GST_PAD_LINK_FAILED (gst_pad_link (pad, sink)))
3500               {
3501                 g_warning ("Could not link video source input pipeline");
3502                 break;
3503               }
3504             gst_object_unref (pad);
3505           }
3506
3507         retval = TRUE;
3508         break;
3509       default:
3510         g_assert_not_reached ();
3511     }
3512
3513   gst_object_unref (sink);
3514   return retval;
3515 }
3516
3517 static void
3518 empathy_call_window_remove_video_input (EmpathyCallWindow *self)
3519 {
3520   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3521   GstElement *preview;
3522
3523   disable_camera (self);
3524
3525   DEBUG ("remove video input");
3526   preview = priv->video_preview_sink;
3527
3528   gst_element_set_state (priv->video_input, GST_STATE_NULL);
3529   gst_element_set_state (priv->video_tee, GST_STATE_NULL);
3530   gst_element_set_state (preview, GST_STATE_NULL);
3531
3532   gst_bin_remove_many (GST_BIN (priv->pipeline), priv->video_input,
3533     preview, NULL);
3534
3535   g_object_unref (priv->video_input);
3536   priv->video_input = NULL;
3537   g_object_unref (priv->video_tee);
3538   priv->video_tee = NULL;
3539   clutter_actor_destroy (priv->video_preview);
3540   priv->video_preview = NULL;
3541
3542   gtk_widget_set_sensitive (priv->camera_button, FALSE);
3543 }
3544
3545 static void
3546 start_call (EmpathyCallWindow *self)
3547 {
3548   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3549
3550   priv->call_started = TRUE;
3551   empathy_call_handler_start_call (priv->handler,
3552       gtk_get_current_event_time ());
3553
3554   if (empathy_call_handler_has_initial_video (priv->handler))
3555     {
3556       TpCallChannel *call;
3557       TpSendingState s;
3558
3559       g_object_get (priv->handler, "call-channel", &call, NULL);
3560       /* If the call channel isn't set yet we're requesting it, if we're
3561        * requesting it with initial video it should be PENDING_SEND when we get
3562        * it */
3563       if (call == NULL)
3564         s = TP_SENDING_STATE_PENDING_SEND;
3565       else
3566         s = empathy_call_channel_get_video_state (call);
3567
3568       if (s == TP_SENDING_STATE_PENDING_SEND ||
3569           s == TP_SENDING_STATE_SENDING)
3570         {
3571           /* Enable 'send video' buttons and display the preview */
3572           gtk_toggle_tool_button_set_active (
3573             GTK_TOGGLE_TOOL_BUTTON (priv->camera_button), TRUE);
3574         }
3575       else
3576         {
3577           gtk_toggle_tool_button_set_active (
3578             GTK_TOGGLE_TOOL_BUTTON (priv->camera_button), FALSE);
3579
3580           if (priv->video_preview == NULL)
3581             {
3582               create_video_preview (self);
3583               add_video_preview_to_pipeline (self);
3584             }
3585         }
3586
3587       if (call != NULL)
3588         g_object_unref (call);
3589     }
3590 }
3591
3592 static gboolean
3593 empathy_call_window_bus_message (GstBus *bus, GstMessage *message,
3594   gpointer user_data)
3595 {
3596   EmpathyCallWindow *self = EMPATHY_CALL_WINDOW (user_data);
3597   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3598   GstState newstate, pending;
3599
3600   empathy_call_handler_bus_message (priv->handler, bus, message);
3601
3602   switch (GST_MESSAGE_TYPE (message))
3603     {
3604       case GST_MESSAGE_STATE_CHANGED:
3605         if (GST_MESSAGE_SRC (message) == GST_OBJECT (priv->video_input))
3606           {
3607             gst_message_parse_state_changed (message, NULL, &newstate, NULL);
3608           }
3609         if (GST_MESSAGE_SRC (message) == GST_OBJECT (priv->pipeline) &&
3610             !priv->call_started)
3611           {
3612             gst_message_parse_state_changed (message, NULL, &newstate, NULL);
3613             if (newstate == GST_STATE_PAUSED)
3614               {
3615                 gst_element_set_state (priv->pipeline, GST_STATE_PLAYING);
3616                 priv->pipeline_playing = TRUE;
3617
3618                 if (priv->start_call_when_playing)
3619                   start_call (self);
3620               }
3621           }
3622         if (GST_MESSAGE_SRC (message) == GST_OBJECT (priv->video_preview_sink))
3623           {
3624             gst_message_parse_state_changed (message, NULL, &newstate,
3625                 &pending);
3626
3627             if (newstate == GST_STATE_PLAYING &&
3628                 pending == GST_STATE_VOID_PENDING)
3629               empathy_call_window_stop_camera_spinning (self);
3630           }
3631         break;
3632       case GST_MESSAGE_ERROR:
3633         {
3634           GError *error = NULL;
3635           GstElement *gst_error;
3636           gchar *debug;
3637
3638           gst_message_parse_error (message, &error, &debug);
3639           gst_error = GST_ELEMENT (GST_MESSAGE_SRC (message));
3640
3641           g_message ("Element error: %s -- %s\n", error->message, debug);
3642
3643           if (g_str_has_prefix (gst_element_get_name (gst_error),
3644                 VIDEO_INPUT_ERROR_PREFIX))
3645             {
3646               /* Remove the video input and continue */
3647               if (priv->video_input != NULL)
3648                 empathy_call_window_remove_video_input (self);
3649               gst_element_set_state (priv->pipeline, GST_STATE_PLAYING);
3650             }
3651           else
3652             {
3653               empathy_call_window_disconnected (self, TRUE);
3654             }
3655           g_error_free (error);
3656           g_free (debug);
3657         }
3658       case GST_MESSAGE_UNKNOWN:
3659       case GST_MESSAGE_EOS:
3660       case GST_MESSAGE_WARNING:
3661       case GST_MESSAGE_INFO:
3662       case GST_MESSAGE_TAG:
3663       case GST_MESSAGE_BUFFERING:
3664       case GST_MESSAGE_STATE_DIRTY:
3665       case GST_MESSAGE_STEP_DONE:
3666       case GST_MESSAGE_CLOCK_PROVIDE:
3667       case GST_MESSAGE_CLOCK_LOST:
3668       case GST_MESSAGE_NEW_CLOCK:
3669       case GST_MESSAGE_STRUCTURE_CHANGE:
3670       case GST_MESSAGE_STREAM_STATUS:
3671       case GST_MESSAGE_APPLICATION:
3672       case GST_MESSAGE_ELEMENT:
3673       case GST_MESSAGE_SEGMENT_START:
3674       case GST_MESSAGE_SEGMENT_DONE:
3675       case GST_MESSAGE_DURATION:
3676       case GST_MESSAGE_ANY:
3677       default:
3678         break;
3679     }
3680
3681   return TRUE;
3682 }
3683
3684 static void
3685 empathy_call_window_members_changed_cb (TpCallChannel *call,
3686     GHashTable *updates,
3687     GPtrArray *removed,
3688     TpCallStateReason *reason,
3689     EmpathyCallWindow *self)
3690 {
3691   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3692   GHashTableIter iter;
3693   gpointer key, value;
3694   gboolean held = FALSE;
3695
3696   g_hash_table_iter_init (&iter, updates);
3697   while (g_hash_table_iter_next (&iter, &key, &value))
3698     {
3699       if (GPOINTER_TO_INT (value) & TP_CALL_MEMBER_FLAG_HELD)
3700         {
3701           /* This assumes this is a 1-1 call, otherwise one participant
3702            * putting the call on hold wouldn't mean the call is on hold
3703            * for everyone. */
3704           held = TRUE;
3705           break;
3706         }
3707     }
3708
3709   if (held)
3710     priv->call_state = HELD;
3711   else if (priv->call_state == HELD)
3712     priv->call_state = CONNECTED;
3713 }
3714
3715 static void
3716 call_handler_notify_call_cb (EmpathyCallHandler *handler,
3717     GParamSpec *spec,
3718     EmpathyCallWindow *self)
3719 {
3720   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3721   TpCallChannel *call;
3722
3723   g_object_get (priv->handler, "call-channel", &call, NULL);
3724   if (call == NULL)
3725     return;
3726
3727 /* FIXME
3728   tp_g_signal_connect_object (call, "audio-stream-error",
3729       G_CALLBACK (empathy_call_window_audio_stream_error), self, 0);
3730   tp_g_signal_connect_object (call, "video-stream-error",
3731       G_CALLBACK (empathy_call_window_video_stream_error), self, 0);
3732 */
3733
3734   tp_g_signal_connect_object (call, "members-changed",
3735       G_CALLBACK (empathy_call_window_members_changed_cb), self, 0);
3736
3737   g_object_unref (call);
3738 }
3739
3740 static void
3741 empathy_call_window_connect_handler (EmpathyCallWindow *self)
3742 {
3743   EmpathyCallWindowPriv *priv = GET_PRIV (self);
3744   TpCallChannel *call;
3745
3746   g_signal_connect (priv->handler, "state-changed",
3747     G_CALLBACK (empathy_call_window_state_changed_cb), self);
3748   g_signal_connect (priv->handler, "conference-added",
3749     G_CALLBACK (empathy_call_window_conference_added_cb), self);
3750   g_signal_connect (priv->handler, "conference-removed",
3751     G_CALLBACK (empathy_call_window_conference_removed_cb), self);
3752   g_signal_connect (priv->handler, "closed",
3753     G_CALLBACK (empathy_call_window_channel_closed_cb), self);
3754   g_signal_connect (priv->handler, "src-pad-added",
3755     G_CALLBACK (empathy_call_window_src_added_cb), self);
3756   g_signal_connect (priv->handler, "content-added",
3757     G_CALLBACK (empathy_call_window_content_added_cb), self);
3758   g_signal_connect (priv->handler, "content-removed",
3759     G_CALLBACK (empathy_call_window_content_removed_cb), self);
3760
3761   /* We connect to ::call-channel unconditionally since we'll
3762    * get new channels if we hangup and redial or if we reuse the
3763    * call window. */
3764   g_signal_connect (priv->handler, "notify::call-channel",
3765     G_CALLBACK (call_handler_notify_call_cb), self);
3766
3767   g_signal_connect (priv->handler, "framerate-changed",
3768     G_CALLBACK (empathy_call_window_framerate_changed_cb), self);
3769   g_signal_connect (priv->handler, "resolution-changed",
3770     G_CALLBACK (empathy_call_window_resolution_changed_cb), self);
3771
3772   g_object_get (priv->handler, "call-channel", &call, NULL);
3773   if (call != NULL)
3774     {
3775       /* We won't get notify::call-channel for this channel, so
3776        * directly call the callback. */
3777       call_handler_notify_call_cb (priv->handler, NULL, self);
3778       g_object_unref (call);
3779     }
3780 }
3781
3782 static void
3783 empathy_call_window_realized_cb (GtkWidget *widget,
3784     EmpathyCallWindow *self)
3785 {
3786   gint width;
3787
3788   /* Make the hangup button twice as wide */
3789   width = gtk_widget_get_allocated_width (self->priv->hangup_button);
3790   gtk_widget_set_size_request (self->priv->hangup_button, width * 2, -1);
3791
3792   empathy_call_window_connect_handler (self);
3793
3794   gst_element_set_state (self->priv->pipeline, GST_STATE_PAUSED);
3795 }
3796
3797 static gboolean
3798 empathy_call_window_delete_cb (GtkWidget *widget, GdkEvent*event,
3799   EmpathyCallWindow *window)
3800 {
3801   EmpathyCallWindowPriv *priv = GET_PRIV (window);
3802
3803   if (priv->pipeline != NULL)
3804     {
3805       if (priv->bus_message_source_id != 0)
3806         {
3807           g_source_remove (priv->bus_message_source_id);
3808           priv->bus_message_source_id = 0;
3809         }
3810
3811       gst_element_set_state (priv->pipeline, GST_STATE_NULL);
3812     }
3813
3814   if (priv->call_state == CONNECTING)
3815     empathy_sound_manager_stop (priv->sound_mgr, EMPATHY_SOUND_PHONE_OUTGOING);
3816
3817   return FALSE;
3818 }
3819
3820 static void
3821 show_controls (EmpathyCallWindow *window, gboolean set_fullscreen)
3822 {
3823   GtkWidget *menu;
3824   EmpathyCallWindowPriv *priv = GET_PRIV (window);
3825
3826   menu = gtk_ui_manager_get_widget (priv->ui_manager,
3827             "/menubar1");
3828
3829   if (set_fullscreen)
3830     {
3831       gtk_widget_hide (priv->dtmf_panel);
3832       gtk_widget_hide (menu);
3833       gtk_widget_hide (priv->toolbar);
3834     }
3835   else
3836     {
3837       if (priv->dialpad_was_visible_before_fs)
3838         gtk_widget_show (priv->dtmf_panel);
3839
3840       gtk_widget_show (menu);
3841       gtk_widget_show (priv->toolbar);
3842
3843       gtk_window_resize (GTK_WINDOW (window), priv->original_width_before_fs,
3844           priv->original_height_before_fs);
3845     }
3846 }
3847
3848 static void
3849 show_borders (EmpathyCallWindow *window, gboolean set_fullscreen)
3850 {
3851   EmpathyCallWindowPriv *priv = GET_PRIV (window);
3852
3853   gtk_container_set_border_width (GTK_CONTAINER (priv->content_hbox),
3854       set_fullscreen ? 0 : CONTENT_HBOX_BORDER_WIDTH);
3855   gtk_box_set_spacing (GTK_BOX (priv->content_hbox),
3856       set_fullscreen ? 0 : CONTENT_HBOX_SPACING);
3857
3858   if (priv->video_output != NULL)
3859     {
3860 #if 0
3861       gtk_box_set_child_packing (GTK_BOX (priv->content_hbox),
3862           priv->video_output, TRUE, TRUE,
3863           set_fullscreen ? 0 : CONTENT_HBOX_CHILDREN_PACKING_PADDING,
3864           GTK_PACK_START);
3865 #endif
3866     }
3867 }
3868
3869 static gboolean
3870 empathy_call_window_state_event_cb (GtkWidget *widget,
3871   GdkEventWindowState *event, EmpathyCallWindow *window)
3872 {
3873   if (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
3874     {
3875       EmpathyCallWindowPriv *priv = GET_PRIV (window);
3876       gboolean set_fullscreen = event->new_window_state &
3877         GDK_WINDOW_STATE_FULLSCREEN;
3878
3879       if (set_fullscreen)
3880         {
3881           gboolean dialpad_was_visible;
3882           GtkAllocation allocation;
3883           gint original_width, original_height;
3884
3885           gtk_widget_get_allocation (GTK_WIDGET (window), &allocation);
3886           original_width = allocation.width;
3887           original_height = allocation.height;
3888
3889           g_object_get (priv->dtmf_panel,
3890               "visible", &dialpad_was_visible,
3891               NULL);
3892
3893           priv->dialpad_was_visible_before_fs = dialpad_was_visible;
3894           priv->original_width_before_fs = original_width;
3895           priv->original_height_before_fs = original_height;
3896
3897           if (priv->video_output_motion_handler_id == 0 &&
3898                 priv->video_output != NULL)
3899             {
3900               priv->video_output_motion_handler_id = g_signal_connect (
3901                   G_OBJECT (priv->video_container), "motion-notify-event",
3902                   G_CALLBACK (empathy_call_window_video_output_motion_notify),
3903                   window);
3904             }
3905         }
3906       else
3907         {
3908           disconnect_video_output_motion_handler (window);
3909         }
3910
3911       empathy_call_window_fullscreen_set_fullscreen (priv->fullscreen,
3912           set_fullscreen);
3913       show_controls (window, set_fullscreen);
3914       show_borders (window, set_fullscreen);
3915       gtk_action_set_stock_id (priv->menu_fullscreen,
3916           (set_fullscreen ? "gtk-leave-fullscreen" : "gtk-fullscreen"));
3917       priv->is_fullscreen = set_fullscreen;
3918   }
3919
3920   return FALSE;
3921 }
3922
3923 static void
3924 empathy_call_window_show_dialpad (EmpathyCallWindow *window,
3925     gboolean active)
3926 {
3927   EmpathyCallWindowPriv *priv = GET_PRIV (window);
3928   int w, h, dialpad_width;
3929   GtkAllocation allocation;
3930
3931   gtk_widget_get_allocation (GTK_WIDGET (window), &allocation);
3932   w = allocation.width;
3933   h = allocation.height;
3934
3935   gtk_widget_get_preferred_width (priv->dtmf_panel, &dialpad_width, NULL);
3936
3937   if (active)
3938     {
3939       gtk_widget_show (priv->dtmf_panel);
3940       w += dialpad_width;
3941     }
3942   else
3943     {
3944       w -= dialpad_width;
3945       gtk_widget_hide (priv->dtmf_panel);
3946     }
3947
3948   if (w > 0 && h > 0)
3949     gtk_window_resize (GTK_WINDOW (window), w, h);
3950 }
3951
3952 static void
3953 empathy_call_window_set_send_video (EmpathyCallWindow *window,
3954   CameraState state)
3955 {
3956   EmpathyCallWindowPriv *priv = GET_PRIV (window);
3957   TpCallChannel *call;
3958
3959   priv->sending_video = (state == CAMERA_STATE_ON);
3960
3961   if (state == CAMERA_STATE_ON)
3962     {
3963       /* When we start sending video, we want to show the video preview by
3964          default. */
3965       display_video_preview (window, TRUE);
3966     }
3967   else
3968     {
3969       display_video_preview (window, FALSE);
3970     }
3971
3972   if (priv->call_state != CONNECTED)
3973     return;
3974
3975   g_object_get (priv->handler, "call-channel", &call, NULL);
3976   DEBUG ("%s sending video", priv->sending_video ? "start": "stop");
3977   empathy_call_channel_send_video (call, priv->sending_video);
3978   g_object_unref (call);
3979 }
3980
3981 static void
3982 empathy_call_window_hangup_cb (gpointer object,
3983     EmpathyCallWindow *self)
3984 {
3985   empathy_call_handler_stop_call (self->priv->handler);
3986
3987   empathy_call_window_disconnected (self, TRUE);
3988 }
3989
3990 static void
3991 empathy_call_window_restart_call (EmpathyCallWindow *window)
3992 {
3993   EmpathyCallWindowPriv *priv = GET_PRIV (window);
3994
3995   /* Remove error info bars */
3996   gtk_container_forall (GTK_CONTAINER (priv->errors_vbox),
3997       (GtkCallback) gtk_widget_destroy, NULL);
3998
3999   create_video_output_widget (window);
4000   priv->outgoing = TRUE;
4001   empathy_call_window_set_state_connecting (window);
4002
4003   if (priv->pipeline_playing)
4004     start_call (window);
4005   else
4006     /* call will be started when the pipeline is ready */
4007     priv->start_call_when_playing = TRUE;
4008
4009   empathy_call_window_setup_avatars (window, priv->handler);
4010
4011   empathy_call_window_show_hangup_button (window, TRUE);
4012 }
4013
4014 static void
4015 empathy_call_window_dialpad_cb (GtkToggleToolButton *button,
4016     EmpathyCallWindow *window)
4017 {
4018   gboolean active;
4019
4020   active = gtk_toggle_tool_button_get_active (button);
4021
4022   empathy_call_window_show_dialpad (window, active);
4023 }
4024
4025 static void
4026 empathy_call_window_fullscreen_cb (gpointer object,
4027                                    EmpathyCallWindow *window)
4028 {
4029   empathy_call_window_fullscreen_toggle (window);
4030 }
4031
4032 static void
4033 empathy_call_window_fullscreen_toggle (EmpathyCallWindow *window)
4034 {
4035   EmpathyCallWindowPriv *priv = GET_PRIV (window);
4036
4037   if (priv->is_fullscreen)
4038     gtk_window_unfullscreen (GTK_WINDOW (window));
4039   else
4040     gtk_window_fullscreen (GTK_WINDOW (window));
4041 }
4042
4043 static gboolean
4044 empathy_call_window_video_button_press_cb (GtkWidget *video_preview,
4045   GdkEventButton *event, EmpathyCallWindow *window)
4046 {
4047   if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
4048     {
4049       empathy_call_window_video_menu_popup (window, event->button);
4050       return TRUE;
4051     }
4052
4053   return FALSE;
4054 }
4055
4056 static gboolean
4057 empathy_call_window_key_press_cb (GtkWidget *video_output,
4058   GdkEventKey *event, EmpathyCallWindow *window)
4059 {
4060   EmpathyCallWindowPriv *priv = GET_PRIV (window);
4061
4062   if (priv->is_fullscreen && event->keyval == GDK_KEY_Escape)
4063     {
4064       /* Since we are in fullscreen mode, toggling will bring us back to
4065          normal mode. */
4066       empathy_call_window_fullscreen_toggle (window);
4067       return TRUE;
4068     }
4069
4070   return FALSE;
4071 }
4072
4073 static gboolean
4074 empathy_call_window_video_output_motion_notify (GtkWidget *widget,
4075     GdkEventMotion *event, EmpathyCallWindow *window)
4076 {
4077   EmpathyCallWindowPriv *priv = GET_PRIV (window);
4078
4079   if (priv->is_fullscreen)
4080     {
4081       empathy_call_window_fullscreen_show_popup (priv->fullscreen);
4082
4083       /* Show the bottom toolbar */
4084       empathy_call_window_motion_notify_cb (NULL, NULL, window);
4085       return TRUE;
4086     }
4087   return FALSE;
4088 }
4089
4090 static void
4091 empathy_call_window_video_menu_popup (EmpathyCallWindow *window,
4092   guint button)
4093 {
4094   GtkWidget *menu;
4095   EmpathyCallWindowPriv *priv = GET_PRIV (window);
4096
4097   menu = gtk_ui_manager_get_widget (priv->ui_manager,
4098             "/video-popup");
4099   gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
4100       button, gtk_get_current_event_time ());
4101   gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
4102 }
4103
4104 static void
4105 empathy_call_window_status_message (EmpathyCallWindow *self,
4106   gchar *message)
4107 {
4108   gtk_label_set_label (GTK_LABEL (self->priv->status_label), message);
4109 }
4110
4111 GtkUIManager *
4112 empathy_call_window_get_ui_manager (EmpathyCallWindow *window)
4113 {
4114   EmpathyCallWindowPriv *priv = GET_PRIV (window);
4115
4116   return priv->ui_manager;
4117 }
4118
4119 EmpathyGstAudioSrc *
4120 empathy_call_window_get_audio_src (EmpathyCallWindow *window)
4121 {
4122   EmpathyCallWindowPriv *priv = GET_PRIV (window);
4123
4124   return (EmpathyGstAudioSrc *) priv->audio_input;
4125 }
4126
4127 EmpathyGstVideoSrc *
4128 empathy_call_window_get_video_src (EmpathyCallWindow *self)
4129 {
4130   return EMPATHY_GST_VIDEO_SRC (self->priv->video_input);
4131 }
4132
4133 void
4134 empathy_call_window_change_webcam (EmpathyCallWindow *self,
4135     const gchar *device)
4136 {
4137   EmpathyGstVideoSrc *video;
4138   gboolean running;
4139
4140   /* Restart the camera only if it's already running */
4141   running = (self->priv->video_preview != NULL);
4142   video = empathy_call_window_get_video_src (self);
4143
4144   if (running)
4145     empathy_call_window_play_camera (self, FALSE);
4146
4147   empathy_video_src_change_device (video, device);
4148
4149   if (running)
4150     empathy_call_window_play_camera (self, TRUE);
4151 }