Merge pull request #1769 from DennisKehrig/dk/issue-1256

Fixes #1256

Author: RaymondLim

src/document/TextRange.js

@@ -45,6 +45,7 @@ define(function (require, exports, module) {
      *  - lostSync -- When the backing Document changes in such a way that the range can no longer
      *          accurately be maintained. Generally, occurs whenever an edit spans a range boundary.
      *          After this, startLine & endLine will be unusable (set to null).
+     *          Also occurs when the document is deleted, though startLine & endLine won't be modified
      * These events only ever occur in response to Document changes, so if you are already listening
      * to the Document, you could ignore the TextRange events and just read its updated value in your
      * own Document change handler.
@@ -59,16 +60,19 @@ define(function (require, exports, module) {
 
         this.document = document;
         document.addRef();
-        // store this-bound version of listener so we can remove them later
+        // store this-bound versions of listeners so we can remove them later
         this._handleDocumentChange = this._handleDocumentChange.bind(this);
+        this._handleDocumentDeleted = this._handleDocumentDeleted.bind(this);
         $(document).on("change", this._handleDocumentChange);
+        $(document).on("deleted", this._handleDocumentDeleted);
     }
 
     /** Detaches from the Document. The TextRange will no longer update or send change events */
     TextRange.prototype.dispose = function (editor, change) {
         // Disconnect from Document
         this.document.releaseRef();
         $(this.document).off("change", this._handleDocumentChange);
+        $(this.document).off("deleted", this._handleDocumentDeleted);
     };
 
 
@@ -167,6 +171,10 @@ define(function (require, exports, module) {
         this._applyChangesToRange(changeList);
     };
 
+    TextRange.prototype._handleDocumentDeleted = function (event) {
+        $(this).triggerHandler("lostSync");
+    };
+    
 
     /* (pretty toString(), to aid debugging) */
     TextRange.prototype.toString = function () {

src/editor/Editor.js

@@ -571,8 +571,9 @@ define(function (require, exports, module) {
      * Responds to the Document's underlying file being deleted. The Document is now basically dead,
      * so we must close.
      */
-    Editor.prototype._handleDocumentDeleted = function () {
-        $(this).triggerHandler("lostContent");
+    Editor.prototype._handleDocumentDeleted = function (event) {
+        // Pass the delete event along as the cause (needed in MultiRangeInlineEditor)
+        $(this).triggerHandler("lostContent", [event]);
     };
 
 

src/editor/InlineTextEditor.js

@@ -247,11 +247,9 @@ define(function (require, exports, module) {
             $lineNumber.text(inlineInfo.editor.getFirstVisibleLine() + 1);
         });
 
-        // If Document's file is deleted, or Editor loses sync with Document, just close
+        // If Document's file is deleted, or Editor loses sync with Document, delegate to this._onLostContent()
         $(inlineInfo.editor).on("lostContent", function () {
-            // Note: this closes the entire inline widget if any one Editor loses sync. This seems
-            // better than leaving it open but suddenly removing one rule from the result list.
-            self.close();
+            self._onLostContent.apply(self, arguments);
         });
 
         // set dirty indicator state
@@ -285,6 +283,14 @@ define(function (require, exports, module) {
         });
     };
 
+    /**
+     * If Document's file is deleted, or Editor loses sync with Document, just close
+     */
+    InlineTextEditor.prototype._onLostContent = function () {
+        // Note: this closes the entire inline widget if any one Editor loses sync. This seems
+        // better than leaving it open but suddenly removing one rule from the result list.
+        this.close();
+    };
 
     // consolidate all dirty document updates
     $(DocumentManager).on("dirtyFlagChange", _dirtyFlagChangeHandler);

src/editor/MultiRangeInlineEditor.js

@@ -146,25 +146,24 @@ define(function (require, exports, module) {
 
         // create range list & add listeners for range textrange changes
         var rangeItemText;
-        this._ranges.forEach(function (range, i) {
+        this._ranges.forEach(function (range) {
             // Create list item UI
             var $rangeItem = $(window.document.createElement("li")).appendTo($rangeList);
             _updateRangeLabel($rangeItem, range);
             $rangeItem.mousedown(function () {
-                self.setSelectedIndex(i);
+                self.setSelectedIndex(self._ranges.indexOf(range));
             });
 
-            self._ranges[i].$listItem = $rangeItem;
+            range.$listItem = $rangeItem;
 
             // Update list item as TextRange changes
-            $(self._ranges[i].textRange).on("change", function () {
+            $(range.textRange).on("change", function () {
                 _updateRangeLabel($rangeItem, range);
             });
 
-            // If TextRange lost sync, react just as we do for an inline Editor's lostContent event:
-            // close the whole inline widget
-            $(self._ranges[i].textRange).on("lostSync", function () {
-                self.close();
+            // If TextRange lost sync, remove it from the list (and close the widget if no other ranges are left)
+            $(range.textRange).on("lostSync", function () {
+                self._removeRange(range);
             });
         });
 
@@ -207,10 +206,10 @@ define(function (require, exports, module) {
         }
 
         // Remove selected class(es)
-        var previousItem = (this._selectedRangeIndex >= 0) ? this._ranges[this._selectedRangeIndex].$listItem : null;
+        var $previousItem = (this._selectedRangeIndex >= 0) ? this._ranges[this._selectedRangeIndex].$listItem : null;
 
-        if (previousItem) {
-            previousItem.toggleClass("selected", false);
+        if ($previousItem) {
+            $previousItem.toggleClass("selected", false);
         }
 
         this._selectedRangeIndex = newIndex;
@@ -249,6 +248,44 @@ define(function (require, exports, module) {
         this.sizeInlineWidgetToContents(true, false);
         this._updateRelatedContainer();
 
+        this._updateSelectedMarker();
+    };
+
+    MultiRangeInlineEditor.prototype._removeRange = function (range) {
+        // If this is the last range, just close the whole widget
+        if (this._ranges.length <= 1) {
+            this.close();
+            return;
+        }
+
+        // Now we know there is at least one other range -> found out which one this is
+        var index = this._ranges.indexOf(range);
+        
+        // If the range to be removed is the selected one, first switch to another one
+        if (index === this._selectedRangeIndex) {
+            // If possible, select the one below, else select the one above
+            if (index + 1 < this._ranges.length) {
+                this.setSelectedIndex(index + 1);
+            } else {
+                this.setSelectedIndex(index - 1);
+            }
+        }
+
+        // Now we can remove this range
+        range.$listItem.remove();
+        range.textRange.dispose();
+        this._ranges.splice(index, 1);
+
+        // If the selected range is below, we need to update the index
+        if (index < this._selectedRangeIndex) {
+            this._selectedRangeIndex--;
+            this._updateSelectedMarker();
+        }
+    };
+
+    MultiRangeInlineEditor.prototype._updateSelectedMarker = function () {
+        var $rangeItem = this._ranges[this._selectedRangeIndex].$listItem;
+        
         // scroll the selection to the rangeItem, use setTimeout to wait for DOM updates
         var self = this;
         window.setTimeout(function () {
@@ -429,6 +466,17 @@ define(function (require, exports, module) {
         this._ensureCursorVisible();
     };
 
+    /**
+     * Overwrite InlineTextEditor's _onLostContent to do nothing if the document's file is deleted
+     * (deletes are handled via TextRange's lostSync).
+     */
+    MultiRangeInlineEditor.prototype._onLostContent = function (event, cause) {
+        // Ignore when the editor's content got lost due to a deleted file
+        if (cause && cause.type === "deleted") { return; }
+        // Else yield to the parent's implementation
+        return this.parentClass._onLostContent.apply(this, arguments);
+    };
+
     /**
      * @return {Array.<SearchResultItem>}
      */