libempathy-gtk/empathy-avatar-chooser.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2006-2007 Imendio AB.
   4  * Copyright (C) 2007-2008 Collabora Ltd.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Authors: Based on Novell's e-image-chooser.
  21  *          Xavier Claessens <xclaesse@gmail.com>
  22  */
  23
  24 #include "config.h"
  25
  26 #include <string.h>
  27
  28 #include <glib/gi18n.h>
  29 #include <gtk/gtk.h>
  30 #include <gio/gio.h>
  31
  32 #include <libempathy/empathy-utils.h>
  33 #include "empathy-avatar-chooser.h"
  34 #include "empathy-conf.h"
  35 #include "empathy-ui-utils.h"
  36
  37 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  38 #include <libempathy/empathy-debug.h>
  39
  40 #define AVATAR_SIZE_SAVE 96
  41 #define AVATAR_SIZE_VIEW 64
  42 #define DEFAULT_DIR DATADIR"/pixmaps/faces"
  43
  44 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyAvatarChooser)
  45 typedef struct {
  46         EmpathyContactFactory   *contact_factory;
  47         McAccount               *account;
  48         EmpathyTpContactFactory *tp_contact_factory;
  49
  50         gulong ready_handler_id;
  51
  52         EmpathyAvatar *avatar;
  53 } EmpathyAvatarChooserPriv;
  54
  55 static void       avatar_chooser_finalize              (GObject              *object);
  56 static void       avatar_chooser_set_account           (EmpathyAvatarChooser *self,
  57                                                         McAccount            *account);
  58 static void       avatar_chooser_set_image             (EmpathyAvatarChooser *chooser,
  59                                                         EmpathyAvatar        *avatar,
  60                                                         GdkPixbuf            *pixbuf,
  61                                                         gboolean              set_locally);
  62 static gboolean   avatar_chooser_drag_motion_cb        (GtkWidget            *widget,
  63                                                         GdkDragContext       *context,
  64                                                         gint                  x,
  65                                                         gint                  y,
  66                                                         guint                 time,
  67                                                         EmpathyAvatarChooser *chooser);
  68 static void       avatar_chooser_drag_leave_cb         (GtkWidget            *widget,
  69                                                         GdkDragContext       *context,
  70                                                         guint                 time,
  71                                                         EmpathyAvatarChooser *chooser);
  72 static gboolean   avatar_chooser_drag_drop_cb          (GtkWidget            *widget,
  73                                                         GdkDragContext       *context,
  74                                                         gint                  x,
  75                                                         gint                  y,
  76                                                         guint                 time,
  77                                                         EmpathyAvatarChooser *chooser);
  78 static void       avatar_chooser_drag_data_received_cb (GtkWidget            *widget,
  79                                                         GdkDragContext       *context,
  80                                                         gint                  x,
  81                                                         gint                  y,
  82                                                         GtkSelectionData     *selection_data,
  83                                                         guint                 info,
  84                                                         guint                 time,
  85                                                         EmpathyAvatarChooser *chooser);
  86 static void       avatar_chooser_clicked_cb            (GtkWidget            *button,
  87                                                         EmpathyAvatarChooser *chooser);
  88
  89 enum {
  90         CHANGED,
  91         LAST_SIGNAL
  92 };
  93
  94 enum {
  95         PROP_0,
  96         PROP_ACCOUNT
  97 };
  98
  99 static guint signals [LAST_SIGNAL];
 100
 101 G_DEFINE_TYPE (EmpathyAvatarChooser, empathy_avatar_chooser, GTK_TYPE_BUTTON);
 102
 103 /*
 104  * Drag and drop stuff
 105  */
 106 #define URI_LIST_TYPE "text/uri-list"
 107
 108 enum DndTargetType {
 109         DND_TARGET_TYPE_URI_LIST
 110 };
 111
 112 static const GtkTargetEntry drop_types[] = {
 113         { URI_LIST_TYPE, 0, DND_TARGET_TYPE_URI_LIST },
 114 };
 115
 116 static void
 117 avatar_chooser_get_property (GObject    *object,
 118                              guint       param_id,
 119                              GValue     *value,
 120                              GParamSpec *pspec)
 121 {
 122         EmpathyAvatarChooserPriv *priv = GET_PRIV (object);
 123
 124         switch (param_id) {
 125         case PROP_ACCOUNT:
 126                 g_value_set_object (value, priv->account);
 127                 break;
 128         default:
 129                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 130                 break;
 131         }
 132 }
 133
 134 static void
 135 avatar_chooser_set_property (GObject      *object,
 136                              guint         param_id,
 137                              const GValue *value,
 138                              GParamSpec   *pspec)
 139 {
 140         EmpathyAvatarChooser *self = EMPATHY_AVATAR_CHOOSER (object);
 141
 142         switch (param_id) {
 143         case PROP_ACCOUNT:
 144                 avatar_chooser_set_account (self, g_value_get_object (value));
 145                 break;
 146         default:
 147                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 148                 break;
 149         }
 150 }
 151
 152 static void
 153 empathy_avatar_chooser_class_init (EmpathyAvatarChooserClass *klass)
 154 {
 155         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 156         GParamSpec *param_spec;
 157
 158         object_class->finalize = avatar_chooser_finalize;
 159         object_class->get_property = avatar_chooser_get_property;
 160         object_class->set_property = avatar_chooser_set_property;
 161
 162         signals[CHANGED] =
 163                 g_signal_new ("changed",
 164                               G_TYPE_FROM_CLASS (klass),
 165                               G_SIGNAL_RUN_LAST,
 166                               0,
 167                               NULL, NULL,
 168                               g_cclosure_marshal_VOID__VOID,
 169                               G_TYPE_NONE, 0);
 170
 171         param_spec = g_param_spec_object ("account",
 172                                           "McAccount",
 173                                           "McAccount whose avatar should be "
 174                                           "shown and modified by this widget",
 175                                           MC_TYPE_ACCOUNT,
 176                                           G_PARAM_READWRITE |
 177                                           G_PARAM_STATIC_STRINGS);
 178         g_object_class_install_property (object_class,
 179                                          PROP_ACCOUNT,
 180                                          param_spec);
 181
 182         g_type_class_add_private (object_class, sizeof (EmpathyAvatarChooserPriv));
 183 }
 184
 185 static void
 186 empathy_avatar_chooser_init (EmpathyAvatarChooser *chooser)
 187 {
 188         EmpathyAvatarChooserPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (chooser,
 189                 EMPATHY_TYPE_AVATAR_CHOOSER, EmpathyAvatarChooserPriv);
 190
 191         chooser->priv = priv;
 192         gtk_drag_dest_set (GTK_WIDGET (chooser),
 193                            GTK_DEST_DEFAULT_ALL,
 194                            drop_types,
 195                            G_N_ELEMENTS (drop_types),
 196                            GDK_ACTION_COPY);
 197
 198         g_signal_connect (chooser, "drag-motion",
 199                           G_CALLBACK (avatar_chooser_drag_motion_cb),
 200                           chooser);
 201         g_signal_connect (chooser, "drag-leave",
 202                           G_CALLBACK (avatar_chooser_drag_leave_cb),
 203                           chooser);
 204         g_signal_connect (chooser, "drag-drop",
 205                           G_CALLBACK (avatar_chooser_drag_drop_cb),
 206                           chooser);
 207         g_signal_connect (chooser, "drag-data-received",
 208                           G_CALLBACK (avatar_chooser_drag_data_received_cb),
 209                           chooser);
 210         g_signal_connect (chooser, "clicked",
 211                           G_CALLBACK (avatar_chooser_clicked_cb),
 212                           chooser);
 213
 214         priv->contact_factory = empathy_contact_factory_new ();
 215
 216         empathy_avatar_chooser_set (chooser, NULL);
 217 }
 218
 219 static void
 220 avatar_chooser_finalize (GObject *object)
 221 {
 222         EmpathyAvatarChooserPriv *priv;
 223
 224         priv = GET_PRIV (object);
 225
 226         avatar_chooser_set_account (EMPATHY_AVATAR_CHOOSER (object), NULL);
 227         g_assert (priv->account == NULL && priv->tp_contact_factory == NULL);
 228
 229         g_object_unref (priv->contact_factory);
 230
 231         if (priv->avatar != NULL) {
 232                 empathy_avatar_unref (priv->avatar);
 233         }
 234
 235         G_OBJECT_CLASS (empathy_avatar_chooser_parent_class)->finalize (object);
 236 }
 237
 238 static void
 239 avatar_chooser_tp_cf_ready_cb (EmpathyTpContactFactory *tp_cf,
 240                                GParamSpec              *unused,
 241                                EmpathyAvatarChooser    *self)
 242 {
 243         EmpathyAvatarChooserPriv *priv = GET_PRIV (self);
 244         gboolean ready;
 245
 246         /* sanity check that we're listening on the right ETpCF */
 247         g_assert (priv->tp_contact_factory == tp_cf);
 248
 249         ready = empathy_tp_contact_factory_is_ready (tp_cf);
 250         gtk_widget_set_sensitive (GTK_WIDGET (self), ready);
 251 }
 252
 253 static void
 254 avatar_chooser_set_account (EmpathyAvatarChooser *self,
 255                             McAccount            *account)
 256 {
 257         EmpathyAvatarChooserPriv *priv = GET_PRIV (self);
 258
 259         if (priv->account != NULL) {
 260                 g_object_unref (priv->account);
 261                 priv->account = NULL;
 262
 263                 g_assert (priv->tp_contact_factory != NULL);
 264
 265                 g_signal_handler_disconnect (priv->tp_contact_factory,
 266                         priv->ready_handler_id);
 267                 priv->ready_handler_id = 0;
 268
 269                 g_object_unref (priv->tp_contact_factory);
 270                 priv->tp_contact_factory = NULL;
 271         }
 272
 273         if (account != NULL) {
 274                 priv->account = g_object_ref (account);
 275                 priv->tp_contact_factory = g_object_ref (
 276                         empathy_contact_factory_get_tp_factory (
 277                                 priv->contact_factory, priv->account));
 278
 279                 priv->ready_handler_id = g_signal_connect (
 280                         priv->tp_contact_factory, "notify::ready",
 281                         G_CALLBACK (avatar_chooser_tp_cf_ready_cb), self);
 282                 avatar_chooser_tp_cf_ready_cb (priv->tp_contact_factory, NULL,
 283                         self);
 284         }
 285 }
 286
 287 static gboolean
 288 str_in_strv (gchar  *str,
 289              gchar **strv)
 290 {
 291         if (strv == NULL) {
 292                 return FALSE;
 293         }
 294
 295         while (*strv != NULL) {
 296                 if (g_str_equal (str, *strv)) {
 297                         return TRUE;
 298                 }
 299                 strv++;
 300         }
 301         return FALSE;
 302 }
 303
 304 /* The caller must free the strings stored in satisfactory_format_name and
 305  * satisfactory_mime_type.
 306  */
 307 static gboolean
 308 can_satisfy_mime_type_requirements (gchar **accepted_mime_types,
 309                                     gchar **satisfactory_format_name,
 310                                     gchar **satisfactory_mime_type)
 311 {
 312         gchar   *name = NULL,
 313                 *type = NULL;
 314         gboolean done = FALSE;
 315
 316         if (accepted_mime_types == NULL || *accepted_mime_types == NULL) {
 317                 return FALSE;
 318         }
 319
 320         g_assert (satisfactory_format_name != NULL);
 321         g_assert (satisfactory_mime_type != NULL);
 322
 323         /* Special-case png and jpeg to avoid accidentally saving to something
 324          * uncompressed like bmp. This assumes that we can write image/png and
 325          * image/jpeg; if this isn't true then something's really wrong with
 326          * GdkPixbuf.
 327          */
 328         if (str_in_strv ("image/png", accepted_mime_types)) {
 329                 name = g_strdup ("png");
 330                 type = g_strdup ("image/png");
 331                 done = TRUE;
 332         } else if (str_in_strv ("image/jpeg", accepted_mime_types)) {
 333                 name = g_strdup ("jpeg");
 334                 type = g_strdup ("image/jpeg");
 335                 done = TRUE;
 336         } else {
 337                 GSList  *formats = gdk_pixbuf_get_formats ();
 338                 GSList  *l;
 339                 gchar  **strv;
 340
 341                 for (l = formats; !done && l != NULL; l = l->next) {
 342                         GdkPixbufFormat *format = l->data;
 343                         gchar **format_mime_types;
 344
 345                         if (!gdk_pixbuf_format_is_writable (format)) {
 346                                 continue;
 347                         }
 348
 349                         format_mime_types = gdk_pixbuf_format_get_mime_types (format);
 350                         for (strv = format_mime_types; *strv != NULL; strv++) {
 351                                 if (str_in_strv (*strv, accepted_mime_types)) {
 352                                         name = gdk_pixbuf_format_get_name (format);
 353                                         type = g_strdup (*strv);
 354                                         done = TRUE;
 355                                         break;
 356                                 }
 357                         }
 358                         g_strfreev (format_mime_types);
 359                 }
 360
 361                 g_slist_free (formats);
 362         }
 363
 364         if (done) {
 365                 if (satisfactory_format_name != NULL) {
 366                         *satisfactory_format_name = name;
 367                 } else {
 368                         g_free (name);
 369                 }
 370                 if (satisfactory_mime_type != NULL) {
 371                         *satisfactory_mime_type = type;
 372                 } else {
 373                         g_free (type);
 374                 }
 375                 return TRUE;
 376         } else {
 377                 /* check we're not leaking. */
 378                 g_assert (name == NULL && type == NULL);
 379                 return FALSE;
 380         }
 381 }
 382
 383 static EmpathyAvatar *
 384 avatar_chooser_convert (EmpathyAvatarChooser *chooser,
 385                         GdkPixbuf            *pixbuf_scaled,
 386                         gchar               **mime_types,
 387                         gsize                 max_size)
 388 {
 389         gchar         *format_name = NULL, *new_mime_type = NULL;
 390         gchar         *converted_image_data = NULL;
 391         gsize          converted_image_size = 0;
 392         EmpathyAvatar *converted_avatar = NULL;
 393         gboolean       saved;
 394         GError        *error = NULL;
 395
 396         if (!can_satisfy_mime_type_requirements (mime_types, &format_name,
 397                                                  &new_mime_type)) {
 398                 DEBUG ("Mon dieu! Can't convert to any acceptable format!");
 399                 return NULL;
 400         }
 401
 402         saved = gdk_pixbuf_save_to_buffer (pixbuf_scaled, &converted_image_data,
 403                 &converted_image_size, format_name, &error, NULL);
 404         g_free (format_name);
 405
 406         if (!saved) {
 407                 DEBUG ("Couldn't convert image: %s", error->message);
 408                 g_error_free (error);
 409
 410                 g_free (new_mime_type);
 411                 return NULL;
 412         }
 413
 414         /* Takes ownership of new_mime_type */
 415         converted_avatar = empathy_avatar_new (converted_image_data,
 416                 converted_image_size, new_mime_type, NULL);
 417
 418         if (max_size > 0 && converted_avatar->len > max_size) {
 419                 /* FIXME: We could try converting to a different format; in
 420                  *        particular, try converting to jpeg with increasingly
 421                  *        high compression (if jpeg is supported). Not sure how
 422                  *        much we care.
 423                  */
 424                 DEBUG ("Converted the image, but the new filesize is too big");
 425
 426                 empathy_avatar_unref (converted_avatar);
 427                 converted_avatar = NULL;
 428         }
 429
 430         return converted_avatar;
 431 }
 432
 433 static EmpathyAvatar *
 434 avatar_chooser_maybe_convert_and_scale (EmpathyAvatarChooser *chooser,
 435                                         GdkPixbuf            *pixbuf,
 436                                         EmpathyAvatar        *avatar)
 437 {
 438         EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
 439         EmpathyTpContactFactory  *tp_cf = priv->tp_contact_factory;
 440         gint                      max_width = 0, max_height = 0, max_size = 0;
 441         gchar                   **mime_types = NULL;
 442         gboolean                  needs_conversion = FALSE;
 443         GdkPixbuf                *pixbuf_scaled = NULL;
 444
 445         /* This should only be called if the user is setting a new avatar,
 446          * which should only be allowed once the avatar requirements have been
 447          * discovered.
 448          */
 449         g_return_val_if_fail (tp_cf != NULL, NULL);
 450         g_return_val_if_fail (empathy_tp_contact_factory_is_ready (tp_cf),
 451                 NULL);
 452
 453         g_object_get (tp_cf,
 454                 "avatar-mime-types", &mime_types, /* Needs g_strfreev-ing */
 455                 "avatar-max-width", &max_width,
 456                 "avatar-max-height", &max_height,
 457                 "avatar-max-size", &max_size,
 458                 NULL);
 459
 460         /* If the avatar's not already the right type, it needs converting. */
 461         if (!str_in_strv (avatar->format, mime_types)) {
 462                 needs_conversion = TRUE;
 463         }
 464
 465         /* If _scale_down_if_necessary yields a new pixbuf, then it needed
 466          * scaling.  If it's the same pixbuf, it did not, and did no extra work
 467          * beyond checking the dimensions.  Hence, we call it even if
 468          * needs_conversion is already TRUE, rather than duplicating the
 469          * dimension checking code here, as it's no more expensive than
 470          * checking the dimensions first in the case where no scaling is
 471          * necessary.
 472          */
 473         pixbuf_scaled = empathy_pixbuf_scale_down_if_necessary (pixbuf,
 474                 MIN(max_width, max_height));
 475         if (pixbuf_scaled != pixbuf) {
 476                 needs_conversion = TRUE;
 477         }
 478
 479         if (max_size > 0 && avatar->len > max_size) {
 480                 needs_conversion = TRUE;
 481         }
 482
 483         if (needs_conversion) {
 484                 avatar = avatar_chooser_convert (chooser, pixbuf_scaled,
 485                         mime_types, max_size);
 486         } else {
 487                 /* Just return another reference to the avatar passed in. */
 488                 avatar = empathy_avatar_ref (avatar);
 489         }
 490
 491         g_object_unref (pixbuf_scaled);
 492         g_strfreev (mime_types);
 493         return avatar;
 494 }
 495
 496 static void
 497 avatar_chooser_clear_image (EmpathyAvatarChooser *chooser)
 498 {
 499         EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
 500         GtkWidget *image;
 501
 502         if (priv->avatar == NULL) {
 503                 return;
 504         }
 505
 506         empathy_avatar_unref (priv->avatar);
 507         priv->avatar = NULL;
 508
 509         image = gtk_image_new_from_icon_name ("stock_person", GTK_ICON_SIZE_DIALOG);
 510         gtk_button_set_image (GTK_BUTTON (chooser), image);
 511         g_signal_emit (chooser, signals[CHANGED], 0);
 512 }
 513
 514 static void
 515 avatar_chooser_set_image_from_data (EmpathyAvatarChooser *chooser,
 516                                     gchar                *data,
 517                                     gsize                 size,
 518                                     gboolean              set_locally)
 519 {
 520         GdkPixbuf     *pixbuf;
 521         EmpathyAvatar *avatar = NULL;
 522         gchar         *mime_type = NULL;
 523
 524         if (data == NULL) {
 525                 avatar_chooser_clear_image (chooser);
 526                 g_free (data);
 527                 return;
 528         }
 529
 530         pixbuf = empathy_pixbuf_from_data (data, size, &mime_type);
 531         if (pixbuf == NULL) {
 532                 g_free (data);
 533                 return;
 534         }
 535
 536         /* avatar takes ownership of data and mime_type */
 537         avatar = empathy_avatar_new (data, size, mime_type, NULL);
 538
 539         avatar_chooser_set_image (chooser, avatar, pixbuf, set_locally);
 540 }
 541
 542 static void
 543 avatar_chooser_set_image_from_avatar (EmpathyAvatarChooser *chooser,
 544                                       EmpathyAvatar        *avatar,
 545                                       gboolean              set_locally)
 546 {
 547         GdkPixbuf *pixbuf;
 548         gchar     *mime_type = NULL;
 549
 550         g_assert (avatar != NULL);
 551
 552         pixbuf = empathy_pixbuf_from_data (avatar->data, avatar->len, &mime_type);
 553         if (pixbuf == NULL) {
 554                 DEBUG ("couldn't make a pixbuf from avatar; giving up");
 555                 return;
 556         }
 557
 558         if (avatar->format == NULL) {
 559                 avatar->format = mime_type;
 560         } else if (strcmp (mime_type, avatar->format)) {
 561                 DEBUG ("avatar had incorrect format! correcting");
 562                 g_free (avatar->format);
 563                 avatar->format = mime_type;
 564         } else {
 565                 g_free (mime_type);
 566         }
 567
 568         empathy_avatar_ref (avatar);
 569
 570         avatar_chooser_set_image (chooser, avatar, pixbuf, set_locally);
 571 }
 572
 573 static void
 574 avatar_chooser_set_image (EmpathyAvatarChooser *chooser,
 575                           EmpathyAvatar        *avatar,
 576                           GdkPixbuf            *pixbuf,
 577                           gboolean              set_locally)
 578 {
 579         EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
 580         GdkPixbuf                *pixbuf_view;
 581         GtkWidget                *image;
 582
 583         g_assert (avatar != NULL);
 584         g_assert (pixbuf != NULL);
 585
 586         if (set_locally) {
 587                 EmpathyAvatar *conv = avatar_chooser_maybe_convert_and_scale (
 588                         chooser, pixbuf, avatar);
 589                 empathy_avatar_unref (avatar);
 590
 591                 if (conv == NULL) {
 592                         /* An error occured; don't change the avatar. */
 593                         return;
 594                 }
 595
 596                 avatar = conv;
 597         }
 598
 599         if (priv->avatar != NULL) {
 600                 empathy_avatar_unref (priv->avatar);
 601         }
 602         priv->avatar = avatar;
 603
 604         pixbuf_view = empathy_pixbuf_scale_down_if_necessary (pixbuf, AVATAR_SIZE_VIEW);
 605         image = gtk_image_new_from_pixbuf (pixbuf_view);
 606
 607         gtk_button_set_image (GTK_BUTTON (chooser), image);
 608         g_signal_emit (chooser, signals[CHANGED], 0);
 609
 610         g_object_unref (pixbuf_view);
 611         g_object_unref (pixbuf);
 612 }
 613
 614 static void
 615 avatar_chooser_set_image_from_file (EmpathyAvatarChooser *chooser,
 616                                     const gchar          *filename)
 617 {
 618         gchar  *image_data = NULL;
 619         gsize   image_size = 0;
 620         GError *error = NULL;
 621
 622         if (!g_file_get_contents (filename, &image_data, &image_size, &error)) {
 623                 DEBUG ("Failed to load image from '%s': %s", filename,
 624                         error ? error->message : "No error given");
 625
 626                 g_clear_error (&error);
 627                 return;
 628         }
 629
 630         avatar_chooser_set_image_from_data (chooser, image_data, image_size, TRUE);
 631 }
 632
 633 static gboolean
 634 avatar_chooser_drag_motion_cb (GtkWidget          *widget,
 635                               GdkDragContext     *context,
 636                               gint                x,
 637                               gint                y,
 638                               guint               time,
 639                               EmpathyAvatarChooser *chooser)
 640 {
 641         EmpathyAvatarChooserPriv *priv;
 642         GList                  *p;
 643
 644         priv = GET_PRIV (chooser);
 645
 646         for (p = context->targets; p != NULL; p = p->next) {
 647                 gchar *possible_type;
 648
 649                 possible_type = gdk_atom_name (GDK_POINTER_TO_ATOM (p->data));
 650
 651                 if (!strcmp (possible_type, URI_LIST_TYPE)) {
 652                         g_free (possible_type);
 653                         gdk_drag_status (context, GDK_ACTION_COPY, time);
 654
 655                         return TRUE;
 656                 }
 657
 658                 g_free (possible_type);
 659         }
 660
 661         return FALSE;
 662 }
 663
 664 static void
 665 avatar_chooser_drag_leave_cb (GtkWidget          *widget,
 666                              GdkDragContext     *context,
 667                              guint               time,
 668                              EmpathyAvatarChooser *chooser)
 669 {
 670 }
 671
 672 static gboolean
 673 avatar_chooser_drag_drop_cb (GtkWidget          *widget,
 674                             GdkDragContext     *context,
 675                             gint                x,
 676                             gint                y,
 677                             guint               time,
 678                             EmpathyAvatarChooser *chooser)
 679 {
 680         EmpathyAvatarChooserPriv *priv;
 681         GList                  *p;
 682
 683         priv = GET_PRIV (chooser);
 684
 685         if (context->targets == NULL) {
 686                 return FALSE;
 687         }
 688
 689         for (p = context->targets; p != NULL; p = p->next) {
 690                 char *possible_type;
 691
 692                 possible_type = gdk_atom_name (GDK_POINTER_TO_ATOM (p->data));
 693                 if (!strcmp (possible_type, URI_LIST_TYPE)) {
 694                         g_free (possible_type);
 695                         gtk_drag_get_data (widget, context,
 696                                            GDK_POINTER_TO_ATOM (p->data),
 697                                            time);
 698
 699                         return TRUE;
 700                 }
 701
 702                 g_free (possible_type);
 703         }
 704
 705         return FALSE;
 706 }
 707
 708 static void
 709 avatar_chooser_drag_data_received_cb (GtkWidget          *widget,
 710                                      GdkDragContext     *context,
 711                                      gint                x,
 712                                      gint                y,
 713                                      GtkSelectionData   *selection_data,
 714                                      guint               info,
 715                                      guint               time,
 716                                      EmpathyAvatarChooser *chooser)
 717 {
 718         gchar    *target_type;
 719         gboolean  handled = FALSE;
 720
 721         target_type = gdk_atom_name (selection_data->target);
 722         if (!strcmp (target_type, URI_LIST_TYPE)) {
 723                 GFile            *file;
 724                 GFileInputStream *input_stream;
 725                 gchar            *nl;
 726                 gchar            *data = NULL;
 727
 728                 nl = strstr (selection_data->data, "\r\n");
 729                 if (nl) {
 730                         gchar *uri;
 731
 732                         uri = g_strndup (selection_data->data,
 733                                          nl - (gchar*) selection_data->data);
 734
 735                         file = g_file_new_for_uri (uri);
 736                         g_free (uri);
 737                 } else {
 738                         file = g_file_new_for_uri (selection_data->data);
 739                 }
 740
 741                 input_stream = g_file_read (file, NULL, NULL);
 742
 743                 if (input_stream != NULL) {
 744                         GFileInfo *info;
 745
 746                         info = g_file_query_info (file,
 747                                                   G_FILE_ATTRIBUTE_STANDARD_SIZE,
 748                                                   0, NULL, NULL);
 749                         if (info != NULL) {
 750                                 goffset size;
 751                                 gssize bytes_read;
 752
 753                                 size = g_file_info_get_size (info);
 754                                 data = g_malloc (size);
 755
 756                                 bytes_read = g_input_stream_read (G_INPUT_STREAM (input_stream),
 757                                                                   data, size,
 758                                                                   NULL, NULL);
 759                                 if (bytes_read != -1) {
 760                                         avatar_chooser_set_image_from_data (
 761                                                 chooser, data,
 762                                                 (gsize) bytes_read,
 763                                                 TRUE);
 764                                         handled = TRUE;
 765                                 }
 766
 767                                 g_free (data);
 768                                 g_object_unref (info);
 769                         }
 770
 771                         g_object_unref (input_stream);
 772                 }
 773
 774                 g_object_unref (file);
 775         }
 776
 777         gtk_drag_finish (context, handled, FALSE, time);
 778 }
 779
 780 static void
 781 avatar_chooser_update_preview_cb (GtkFileChooser       *file_chooser,
 782                                   EmpathyAvatarChooser *chooser)
 783 {
 784         gchar *filename;
 785
 786         filename = gtk_file_chooser_get_preview_filename (file_chooser);
 787
 788         if (filename) {
 789                 GtkWidget *image;
 790                 GdkPixbuf *pixbuf = NULL;
 791                 GdkPixbuf *scaled_pixbuf;
 792
 793                 pixbuf = gdk_pixbuf_new_from_file (filename, NULL);
 794
 795                 image = gtk_file_chooser_get_preview_widget (file_chooser);
 796
 797                 if (pixbuf) {
 798                         scaled_pixbuf = empathy_pixbuf_scale_down_if_necessary (pixbuf, AVATAR_SIZE_SAVE);
 799                         gtk_image_set_from_pixbuf (GTK_IMAGE (image), scaled_pixbuf);
 800                         g_object_unref (scaled_pixbuf);
 801                         g_object_unref (pixbuf);
 802                 } else {
 803                         gtk_image_set_from_stock (GTK_IMAGE (image),
 804                                                   "gtk-dialog-question",
 805                                                   GTK_ICON_SIZE_DIALOG);
 806                 }
 807         }
 808
 809         gtk_file_chooser_set_preview_widget_active (file_chooser, TRUE);
 810 }
 811
 812 static void
 813 avatar_chooser_response_cb (GtkWidget            *widget,
 814                             gint                  response,
 815                             EmpathyAvatarChooser *chooser)
 816 {
 817         EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
 818
 819         if (response == GTK_RESPONSE_CANCEL) {
 820                 goto out;
 821         }
 822
 823         /* Check if we went non-ready since displaying the dialog. */
 824         if (!empathy_tp_contact_factory_is_ready (priv->tp_contact_factory)) {
 825                 DEBUG ("Can't set avatar when contact factory isn't ready.");
 826                 goto out;
 827         }
 828
 829         if (response == GTK_RESPONSE_OK) {
 830                 gchar *filename;
 831                 gchar *path;
 832
 833                 filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (widget));
 834                 avatar_chooser_set_image_from_file (chooser, filename);
 835                 g_free (filename);
 836
 837                 path = gtk_file_chooser_get_current_folder (GTK_FILE_CHOOSER (widget));
 838                 if (path) {
 839                         empathy_conf_set_string (empathy_conf_get (),
 840                                                  EMPATHY_PREFS_UI_AVATAR_DIRECTORY,
 841                                                  path);
 842                         g_free (path);
 843                 }
 844         }
 845         else if (response == GTK_RESPONSE_NO) {
 846                 /* This corresponds to "No Image", not to "Cancel" */
 847                 avatar_chooser_clear_image (chooser);
 848         }
 849
 850 out:
 851         gtk_widget_destroy (widget);
 852 }
 853
 854 static void
 855 avatar_chooser_clicked_cb (GtkWidget            *button,
 856                            EmpathyAvatarChooser *chooser)
 857 {
 858         GtkFileChooser *chooser_dialog;
 859         GtkWidget      *image;
 860         gchar          *saved_dir = NULL;
 861         const gchar    *default_dir = DEFAULT_DIR;
 862         const gchar    *pics_dir;
 863         GtkFileFilter  *filter;
 864
 865         chooser_dialog = GTK_FILE_CHOOSER (
 866                 gtk_file_chooser_dialog_new (_("Select Your Avatar Image"),
 867                                              empathy_get_toplevel_window (GTK_WIDGET (chooser)),
 868                                              GTK_FILE_CHOOSER_ACTION_OPEN,
 869                                              _("No Image"),
 870                                              GTK_RESPONSE_NO,
 871                                              GTK_STOCK_CANCEL,
 872                                              GTK_RESPONSE_CANCEL,
 873                                              GTK_STOCK_OPEN,
 874                                              GTK_RESPONSE_OK,
 875                                              NULL));
 876
 877         /* Get special dirs */
 878         empathy_conf_get_string (empathy_conf_get (),
 879                                  EMPATHY_PREFS_UI_AVATAR_DIRECTORY,
 880                                  &saved_dir);
 881         if (saved_dir && !g_file_test (saved_dir, G_FILE_TEST_IS_DIR)) {
 882                 g_free (saved_dir);
 883                 saved_dir = NULL;
 884         }
 885         if (!g_file_test (default_dir, G_FILE_TEST_IS_DIR)) {
 886                 default_dir = NULL;
 887         }
 888         pics_dir = g_get_user_special_dir (G_USER_DIRECTORY_PICTURES);
 889         if (pics_dir && !g_file_test (pics_dir, G_FILE_TEST_IS_DIR)) {
 890                 pics_dir = NULL;
 891         }
 892
 893         /* Set current dir to the last one or to DEFAULT_DIR or to home */
 894         if (saved_dir) {
 895                 gtk_file_chooser_set_current_folder (chooser_dialog, saved_dir);
 896         }
 897         else if (pics_dir) {
 898                 gtk_file_chooser_set_current_folder (chooser_dialog, pics_dir);
 899         }
 900         else if (default_dir) {
 901                 gtk_file_chooser_set_current_folder (chooser_dialog, default_dir);
 902         } else {
 903                 gtk_file_chooser_set_current_folder (chooser_dialog, g_get_home_dir ());
 904         }
 905
 906         /* Add shortcuts to special dirs */
 907         if (saved_dir) {
 908                 gtk_file_chooser_add_shortcut_folder (chooser_dialog, saved_dir, NULL);
 909         }
 910         else if (pics_dir) {
 911                 gtk_file_chooser_add_shortcut_folder (chooser_dialog, pics_dir, NULL);
 912         }
 913         if (default_dir) {
 914                 gtk_file_chooser_add_shortcut_folder (chooser_dialog, default_dir, NULL);
 915         }
 916
 917         /* Setup preview image */
 918         image = gtk_image_new ();
 919         gtk_file_chooser_set_preview_widget (chooser_dialog, image);
 920         gtk_widget_set_size_request (image, AVATAR_SIZE_SAVE, AVATAR_SIZE_SAVE);
 921         gtk_widget_show (image);
 922         gtk_file_chooser_set_use_preview_label (chooser_dialog, FALSE);
 923         g_signal_connect (chooser_dialog, "update-preview",
 924                           G_CALLBACK (avatar_chooser_update_preview_cb),
 925                           chooser);
 926
 927         /* Setup filers */
 928         filter = gtk_file_filter_new ();
 929         gtk_file_filter_set_name (filter, _("Images"));
 930         gtk_file_filter_add_pixbuf_formats (filter);
 931         gtk_file_chooser_add_filter (chooser_dialog, filter);
 932         filter = gtk_file_filter_new ();
 933         gtk_file_filter_set_name (filter, _("All Files"));
 934         gtk_file_filter_add_pattern(filter, "*");
 935         gtk_file_chooser_add_filter (chooser_dialog, filter);
 936
 937         /* Setup response */
 938         gtk_dialog_set_default_response (GTK_DIALOG (chooser_dialog), GTK_RESPONSE_OK);
 939         g_signal_connect (chooser_dialog, "response",
 940                           G_CALLBACK (avatar_chooser_response_cb),
 941                           chooser);
 942
 943         gtk_widget_show (GTK_WIDGET (chooser_dialog));
 944         g_free (saved_dir);
 945 }
 946
 947 GtkWidget *
 948 empathy_avatar_chooser_new ()
 949 {
 950         return g_object_new (EMPATHY_TYPE_AVATAR_CHOOSER, NULL);
 951 }
 952
 953 void
 954 empathy_avatar_chooser_set (EmpathyAvatarChooser *chooser,
 955                             EmpathyAvatar        *avatar)
 956 {
 957         g_return_if_fail (EMPATHY_IS_AVATAR_CHOOSER (chooser));
 958
 959         if (avatar != NULL) {
 960                 avatar_chooser_set_image_from_avatar (chooser, avatar, FALSE);
 961         } else {
 962                 avatar_chooser_clear_image (chooser);
 963         }
 964 }
 965
 966 void
 967 empathy_avatar_chooser_get_image_data (EmpathyAvatarChooser  *chooser,
 968                                        const gchar          **data,
 969                                        gsize                 *data_size,
 970                                        const gchar          **mime_type)
 971 {
 972         EmpathyAvatarChooserPriv *priv;
 973
 974         g_return_if_fail (EMPATHY_IS_AVATAR_CHOOSER (chooser));
 975
 976         priv = GET_PRIV (chooser);
 977
 978         if (priv->avatar != NULL) {
 979                 if (data != NULL) {
 980                         *data = priv->avatar->data;
 981                 }
 982                 if (data_size != NULL) {
 983                         *data_size = priv->avatar->len;
 984                 }
 985                 if (mime_type != NULL) {
 986                         *mime_type = priv->avatar->format;
 987                 }
 988         } else {
 989                 if (data != NULL) {
 990                         *data = NULL;
 991                 }
 992                 if (data_size != NULL) {
 993                         *data_size = 0;
 994                 }
 995                 if (mime_type != NULL) {
 996                         *mime_type = NULL;
 997                 }
 998         }
 999 }
1000