fix problem with delete

[fnpeditor.git] / src / editor / modules / documentCanvas / canvas / keyboard.js

diff --git a/src/editor/modules/documentCanvas/canvas/keyboard.js b/src/editor/modules/documentCanvas/canvas/keyboard.js
index 6b32da0..99201bc 100644 (file)
--- a/src/editor/modules/documentCanvas/canvas/keyboard.js
+++ b/src/editor/modules/documentCanvas/canvas/keyboard.js
@@ -75,7 +75,7 @@ var handleKeyEvent = function(e, s) {
 };
 // todo: whileRemoveWholetext
 var keyEventHandlers = [
-    {
+    { // ctrl+x - prevented (?)
         applies: function(e, s) {
             return e.ctrlKey &&
                 e.key === KEYS.X &&
@@ -212,7 +212,7 @@ var keyEventHandlers = [
             }
         }
     },
-    {
+    { // backspace removing the last character in a span
         applies: function(e, s) {
             return s.type === 'caret' &&
                 s.element.wlxmlNode.parent().is({tagName: 'span'}) &&
@@ -230,7 +230,7 @@ var keyEventHandlers = [
                 {caretTo: params.ret ? params.ret.previousLen : (prevTextNode ? prevTextNode.getText().length : 0)});
         }
     },
-    {
+    { // backspace/delete through an edge (behaves weirdly at spans)
         applies: function(e, s) {
             return s.type === 'caret' && (
                 (s.isAtBeginning() && e.key === KEYS.BACKSPACE) ||
@@ -238,26 +238,27 @@ var keyEventHandlers = [
             );
         },
         run: function(e,s) {
-            var direction, caretTo, cursorAtOperationEdge, goto, element;
+            var goto, element;
 
             if(e.key === KEYS.BACKSPACE) {
-                direction = 'above';
-                caretTo = 'end';
-                cursorAtOperationEdge = s.isAtBeginning();
                 element = s.element;
             }
             else {
-                direction = 'below';
-                caretTo = 'start';
-                cursorAtOperationEdge = s.isAtEnd();
-                element = cursorAtOperationEdge && s.canvas.getNearestTextElement(direction, s.element);
+                element = s.canvas.getNearestTextElement('below', s.element);
             }
 
-            if(!cursorAtOperationEdge || !element) {
+            e.preventDefault();
+
+            if(!element) {
                 return;
             }
 
-            e.preventDefault();
+            var parent = element.wlxmlNode.parent();
+            if(element.wlxmlNode.getIndex() === 0 && parent.isContextRoot() && (!parent.is('item') || parent.getIndex() === 0)) {
+                // Don't even try to do anything at the edge of a context root, except for non-first items
+                // - this is a temporary solution until key events handling get refactored into something more sane.
+                return;
+            }
 
             s.canvas.wlxmlDocument.transaction(function() {
                 if(element.wlxmlNode.getIndex() === 0) {
@@ -276,7 +277,7 @@ var keyEventHandlers = [
         }
     },
 
-    {
+    { // backspace/delete last character in a node - why is it needed?
         applies: function(e,s) {
             return s.type === 'caret' && s.element.getText().length === 1 && (e.key === KEYS.BACKSPACE || e.key === KEYS.DELETE);
         },
@@ -348,14 +349,49 @@ var keyEventHandlers = [
 
         }
     },
-    {
+    { // enter on an empty list item - creates paragraph after list
+        applies: function(e, s) {
+            var parent = s.element && s.element.wlxmlNode.parent(),
+                parentIsItem = parent && parent.is('item'),
+                itemIsOnList = parent && parent.parent() && parent.parent().is('list'),
+                onlyChild = parent.contents().length === 1;
+            return s.type === 'caret' && e.key === KEYS.ENTER && s.element.isEmpty() && onlyChild &&
+                parentIsItem && itemIsOnList;
+        },
+        run: function(e, s) {
+            var item = s.element.wlxmlNode.parent(),
+                list = item.parent();
+            e.preventDefault();
+            s.canvas.wlxmlDocument.transaction(function() {
+                var p = list.after({tagName: 'div', attrs: {'class': 'p'}});
+                p.append({text: ''});
+                item.detach();
+                if(list.contents().length === 0) {
+                    list.detach();
+                }
+                return p;
+            }, {
+                success: function(p) {
+                    s.canvas.setCurrentElement(p);
+                }
+            });
+        }
+    },
+    { // enter - split node
         applies: function(e, s) {
             return s.type === 'caret' && e.key === KEYS.ENTER && !s.element.parent().isRootElement();
         },
         run: function(e, s) {
-            var result, goto, gotoOptions;
+            var parent = s.element.parent(),
+                children = parent.children(),
+                result, goto, gotoOptions;
             void(e);
             e.preventDefault();
+
+            if(children.length === 1 && s.element.isEmpty()) {
+                return;
+            }
+
             s.canvas.wlxmlDocument.transaction(function() {
                 result = s.element.wlxmlNode.breakContent({offset: s.offset});
             }, {
@@ -375,6 +411,28 @@ var keyEventHandlers = [
 
             s.canvas.setCurrentElement(utils.getElementForNode(goto), gotoOptions);
         }
+    },
+    { // enter - new paragraph after image/video
+        applies: function (e, s) {
+            return s.type === 'nodeSelection' && e.key === KEYS.ENTER && !s.element.isRootElement();
+        },
+        run: function (e, s) {
+            var parent = s.element.parent(),
+                children = parent.children(),
+                result, goto, gotoOptions;
+            e.preventDefault();
+
+            s.canvas.wlxmlDocument.transaction(function() {
+                result = s.element.wlxmlNode.insertNewNode();
+            }, {
+                metadata: {
+                    description: gettext('Inserting node'),
+                    fragment: s.toDocumentFragment()
+                }
+            });
+
+            s.canvas.setCurrentElement(utils.getElementForNode(result), {caretTo: 'start'});
+        }
     }
 ];