add block toolbar to create a code section

[chloro.git] / chloro / phyll / static / js / chloro.js

diff --git a/chloro/phyll/static/js/chloro.js b/chloro/phyll/static/js/chloro.js
index 78930c3719df687e0fbed76eefe7636596f8a583..4030c7c600ab6a1c87bb2103621972a2c01b3133 100644 (file)
--- a/chloro/phyll/static/js/chloro.js
+++ b/chloro/phyll/static/js/chloro.js
@@ -4,6 +4,7 @@ $(function() {
       var sel = document.getSelection();
       var anchorNode = sel.anchorNode;
       var prev_p = sel.anchorNode.previousSibling;
+      if (! prev_p) return;
       if (prev_p.tagName != 'P') {
         prev_p = $(prev_p).parents('p')[0];
       }
@@ -17,6 +18,16 @@ $(function() {
     }
     return true;
   });
+  $('div[contenteditable]').on('keyup', function(event) {
+    var sel = document.getSelection();
+    if (sel.anchorNode instanceof Element && sel.anchorOffset == 0 && sel.isCollapsed) {
+      // start of line
+      show_block_style_popup();
+    } else {
+      hide_block_style_popup();
+    }
+    return true;
+  });
 
   $('#save').on('click', function() {
     var text = $('div[contenteditable]')[0].innerHTML;
@@ -29,6 +40,48 @@ $(function() {
     return false;
   });
 
+  var block_style_popup = null;
+  function block_style() {
+    var action = $(this).data('action');
+    var class_name = null;
+    if (action == 'code') {
+      action = 'pre';
+      class_name = 'screen';
+    }
+    document.execCommand('formatBlock', false, action);
+    var sel = window.getSelection();
+    if (class_name) {
+      $(sel.anchorNode).addClass(class_name);
+    }
+    var range = document.createRange();
+    range.setStart(sel.anchorNode, 0);
+    sel.removeAllRanges();
+    sel.addRange(range);
+    hide_block_style_popup();
+  }
+  function show_block_style_popup() {
+    if (block_style_popup === null) {
+      block_style_popup = $(
+                      '<div class="style-popup">' +
+                      '<button data-action="code">code</button>' +
+                      '</div>');
+      block_style_popup.hide();
+      block_style_popup.insertAfter($('.actions'));
+      block_style_popup.find('button').on('click', block_style);
+    }
+    block_style_popup.css('position', 'absolute');
+    var sel = window.getSelection();
+    var pos = $(sel.anchorNode).offset();
+    block_style_popup.css('top', pos.top - 33);
+    block_style_popup.css('left', pos.left);
+    block_style_popup.show();
+  }
+  function hide_block_style_popup() {
+    if (block_style_popup) {
+      $(block_style_popup).hide();
+    }
+  }
+
   var style_popup = null;
   function update_style() {
     var action = $(this).data('action');
@@ -37,28 +90,73 @@ $(function() {
       action = 'insertHTML';
       param = $('<code></code>', {text: window.getSelection().toString()})[0].outerHTML;
     }
+    if (action == 'createLink') {
+      var sel = window.getSelection();
+      var $input = $('input[name=link-target]');
+      $input[0]._range = sel.getRangeAt(0);
+      if (sel.anchorNode instanceof Element) {
+        var elem = sel.anchorNode.childNodes[sel.anchorOffset];
+        if (elem.tagName == 'A') {
+          $input.val(elem.href);
+        }
+      }
+      $input.addClass('shown');
+      $input.focus();
+      return;
+    }
     document.execCommand(action, false, param);
   }
+  function validate_link(ev) {
+    var charCode = typeof ev.which == "number" ? ev.which : ev.keyCode;
+    if (ev.key == "Enter") {
+      var $input = $(this);
+      var range = this._range;
+      var url = $input.val();
+      $input.removeClass('shown');
+      var sel = window.getSelection();
+      sel.addRange(this._range);
+      if (url) {
+        document.execCommand('createLink', false, url);
+      } else {
+        document.execCommand('unlink', false, null);
+      }
+      sel.empty();
+      $input.val('');
+    }
+  }
+  function focusout_link(ev) {
+    var $input = $(this);
+    $input.removeClass('shown');
+    var range = this._range;
+    var sel = window.getSelection();
+    sel.addRange(this._range);
+  }
 
   function show_style_popup(sel) {
     if (style_popup === null) {
-      style_popup = $('<div id="style-popup">' +
+      style_popup = $('<div class="style-popup short">' +
                       '<button data-action="italic"><i>i</i></button>' +
                       '<button data-action="bold"><b>b</b></button>' +
                       '<button data-action="code">#</button>' +
                       '<button data-action="removeFormat">×</button>' +
+                      '<button data-action="createLink">a</button>' +
+                      '<input name="link-target"/>' +
                       '</div>');
       style_popup.hide();
-      style_popup.insertAfter($('div[contenteditable]'));
+      style_popup.insertAfter($('.actions'));
       style_popup.find('button').on('click', update_style);
+      style_popup.find('[name=link-target]').on('keypress', validate_link).on('focusout', focusout_link);
     }
     style_popup.css('position', 'absolute');
     var pos = sel.getRangeAt(0).getClientRects()[0];
-    style_popup.css('top', pos.top + window.scrollY - $('main').offset().top - 33);
-    style_popup.css('left', pos.left + window.scrollX - $('main').offset().left);
+    style_popup.css('top', pos.top + window.scrollY - 33);
+    style_popup.css('left', pos.left + window.scrollX);
     style_popup.show();
   };
   $(document).on('selectionchange', function(event) {
+    if ($('input[name=link-target].shown').length) {
+      return;
+    }
     var sel = window.getSelection();
     if ($(sel.anchorNode).parents('div[contenteditable]').length && sel.toString()) {
       show_style_popup(sel);