FIX: "Quote Reply" button gets in the way

app/assets/javascripts/discourse/controllers/quote_button_controller.js

@@ -10,7 +10,6 @@
 **/
 Discourse.QuoteButtonController = Discourse.Controller.extend({
   needs: ['topic', 'composer'],
-  started: null,
 
   init: function() {
     this._super();
@@ -19,42 +18,56 @@ Discourse.QuoteButtonController = Discourse.Controller.extend({
 
   // If the buffer is cleared, clear out other state (post)
   bufferChanged: (function() {
-    if (this.blank('buffer')) {
-      return this.set('post', null);
-    }
+    if (this.blank('buffer')) this.set('post', null);
   }).observes('buffer'),
 
-  mouseDown: function(e) {
-    this.started = [e.pageX, e.pageY];
-  },
-
-  mouseUp: function(e) {
-    if (this.started[1] > e.pageY) {
-      this.started = [e.pageX, e.pageY];
-    }
-  },
-
   selectText: function(e) {
-    var $quoteButton, left, selectedText, top;
+    // anonymous users cannot "quote-reply"
     if (!Discourse.get('currentUser')) return;
+    // there is no need to display the "quote-reply" button if we can't create a post
     if (!this.get('controllers.topic.content.can_create_post')) return;
 
-    selectedText = Discourse.Utilities.selectedText();
+    // retrieve the selected range
+    var range = window.getSelection().getRangeAt(0).cloneRange();
+
+    // do not be present the "quote reply" button if you select text spanning two posts
+    // this basically look for the first "DIV" container...
+    var commonDivAncestorContainer = range.commonAncestorContainer;
+    while (commonDivAncestorContainer.nodeName !== 'DIV') commonDivAncestorContainer = commonDivAncestorContainer.parentNode;
+    // ... and check it has the 'cooked' class (which indicates we're in a post)
+    if (commonDivAncestorContainer.className.indexOf('cooked') === -1) return;
+
+    var selectedText = Discourse.Utilities.selectedText();
     if (this.get('buffer') === selectedText) return;
     if (this.get('lastSelected') === selectedText) return;
 
     this.set('post', e.context);
     this.set('buffer', selectedText);
-    top = e.pageY + 5;
-    left = e.pageX + 5;
-    $quoteButton = $('.quote-button');
-    if (this.started) {
-      top = this.started[1] - 50;
-      left = ((left - this.started[0]) / 2) + this.started[0] - ($quoteButton.width() / 2);
-    }
-    $quoteButton.css({ top: top, left: left });
-    this.started = null;
-    return false;
+
+    // collapse the range at the beginning of the selection
+    // (ie. moves the end point to the start point)
+    range.collapse(true);
+
+    // create a marker element containing a single invisible character
+    var markerElement = document.createElement("span");
+    markerElement.appendChild(document.createTextNode("\ufeff"));
+    // insert it at the beginning of our range
+    range.insertNode(markerElement);
+
+    // find marker position (cf. http://www.quirksmode.org/js/findpos.html)
+    var obj = markerElement, left = 0, top = 0;
+    do {
+      left += obj.offsetLeft;
+      top += obj.offsetTop;
+      obj = obj.offsetParent;
+    } while (obj.offsetParent);
+
+    // move the quote button at the beginning of the selection
+    var $quoteButton = $('.quote-button');
+    $quoteButton.css({ top: top - $quoteButton.outerHeight(), left: left });
+
+    // remove the marker
+    markerElement.parentNode.removeChild(markerElement);
   },
 
   /**

app/assets/javascripts/discourse/views/post_view.js

@@ -29,8 +29,7 @@ Discourse.PostView = Discourse.View.extend({
   }).property('parentView'),
 
   postTypeClass: (function() {
-    if (this.get('post.post_type') === Discourse.get('site.post_types.moderator_action')) return 'moderator';
-    return 'regular';
+    return this.get('post.post_type') === Discourse.get('site.post_types.moderator_action') ? 'moderator' : 'regular';
   }).property('post.post_type'),
 
   // If the cooked content changed, add the quote controls
@@ -59,12 +58,7 @@ Discourse.PostView = Discourse.View.extend({
   },
 
   selectText: (function() {
-    if (this.get('post.selected')) {
-      return Em.String.i18n('topic.multi_select.selected', {
-        count: this.get('controller.selectedCount')
-      });
-    }
-    return Em.String.i18n('topic.multi_select.select');
+    return this.get('post.selected') ? Em.String.i18n('topic.multi_select.selected', { count: this.get('controller.selectedCount') }) : Em.String.i18n('topic.multi_select.select');
   }).property('post.selected', 'controller.selectedCount'),
 
   repliesHidden: (function() {
@@ -198,10 +192,9 @@ Discourse.PostView = Discourse.View.extend({
     var postView = this;
 
     return this.$('aside.quote').each(function(i, e) {
-      var $aside, $title;
-      $aside = $(e);
+      var $aside = $(e);
       postView.updateQuoteElements($aside, 'chevron-down');
-      $title = $('.title', $aside);
+      var $title = $('.title', $aside);
 
       // Unless it's a full quote, allow click to expand
       if (!($aside.data('full') || $title.data('has-quote-controls'))) {
@@ -261,5 +254,3 @@ Discourse.PostView = Discourse.View.extend({
     }
   }
 });
-
-

app/assets/javascripts/discourse/views/quote_button_view.js

@@ -16,23 +16,21 @@ Discourse.QuoteButtonView = Discourse.View.extend({
   },
 
   hasBuffer: (function() {
-    if (this.present('controller.buffer')) return 'visible';
-    return null;
+    return this.present('controller.buffer') ? 'visible' : null;
   }).property('controller.buffer'),
 
   willDestroyElement: function() {
-    $(document).unbind("mousedown.quote-button");
+    $(document).off("mousedown.quote-button");
   },
 
   didInsertElement: function() {
     // Clear quote button if they click elsewhere
     var quoteButtonView = this;
-    return $(document).bind("mousedown.quote-button", function(e) {
+    $(document).on("mousedown.quote-button", function(e) {
       if ($(e.target).hasClass('quote-button')) return;
       if ($(e.target).hasClass('create')) return;
-      quoteButtonView.controller.mouseDown(e);
       quoteButtonView.set('controller.lastSelected', quoteButtonView.get('controller.buffer'));
-      return quoteButtonView.set('controller.buffer', '');
+      quoteButtonView.set('controller.buffer', '');
     });
   },
 
@@ -42,5 +40,3 @@ Discourse.QuoteButtonView = Discourse.View.extend({
   }
 
 });
-
-

app/assets/stylesheets/application/topic.css.scss

@@ -240,7 +240,6 @@
     border: 5px solid rgba(0, 0, 0, 0.75);
     top: 10px;
     left: 10px;
-    z-index: 99999;
     position: absolute;
     display: none;
     @include border-radius-all(4px);