Bug fix: Removing item from DocumentNodeElement data caused removing all data

[fnpeditor.git] / modules / documentCanvas / canvas / canvas.js

diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js
index ba86a32..8ed9b58 100644 (file)
--- a/modules/documentCanvas/canvas/canvas.js
+++ b/modules/documentCanvas/canvas/canvas.js
@@ -23,47 +23,105 @@ $.extend(Canvas.prototype, {
                 var currentTag = $(this);
                 if(currentTag.attr('wlxml-tag'))
                     return;
                 var currentTag = $(this);
                 if(currentTag.attr('wlxml-tag'))
                     return;

-                var element = documentElement.DocumentNodeElement.createDOM({
+
+                var meta = {}, others = {};
+                for(var i = 0; i < this.attributes.length; i++) {
+                    var attr = this.attributes[i];
+                    if(attr.name.substr(0, 5) === 'meta-')
+                        meta[attr.name.substr(5)] = attr.value;
+                    else if(attr.name !== 'class')
+                        others[attr.name] = attr.value;
+                }
+
+                var element = documentElement.DocumentNodeElement.create({

                     tag: currentTag.prop('tagName').toLowerCase(),
                     tag: currentTag.prop('tagName').toLowerCase(),

-                    klass: currentTag.attr('class')
+                    klass: currentTag.attr('class'),
+                    meta: meta,
+                    others: others

                 });
 
                 });
 

-                element.append(currentTag.contents());
-                return element;
+                element.dom().append(currentTag.contents());
+                ['orig-before', 'orig-after', 'orig-begin', 'orig-end'].forEach(function(attr) {
+                    element.data(attr, '');
+                });
+                return element.dom();

             });
 
             this.wrapper.find(':not(iframe)').addBack().contents()
                 .filter(function() {return this.nodeType === Node.TEXT_NODE})
                 .each(function() {
             });
 
             this.wrapper.find(':not(iframe)').addBack().contents()
                 .filter(function() {return this.nodeType === Node.TEXT_NODE})
                 .each(function() {

-
-                    var el = $(this);
-                    

                     // TODO: use DocumentElement API
                     // TODO: use DocumentElement API

-                    var spanParent = el.parent().attr('wlxml-tag') === 'span',
-                        spanBefore = el.prev().length > 0  && $(el.prev()[0]).attr('wlxml-tag') === 'span',
-                        spanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
-                        
-                    if(spanParent || spanBefore || spanAfter) {
-                        var startSpace = /\s/g.test(this.data.substr(0,1));
-                        var endSpace = /\s/g.test(this.data.substr(-1)) && this.data.length > 1;
-                        var trimmed = $.trim(this.data);
-                        this.data = (startSpace && (spanParent || spanBefore) ? ' ' : '')
-                                    + trimmed
-                                    + (endSpace && (spanParent || spanAfter) ? ' ' : '');

 
 

+                    var el = $(this),
+                        text = {original: el.text(), trimmed: $.trim(el.text())},
+                        elParent = el.parent(),
+                        hasSpanParent = elParent.attr('wlxml-tag') === 'span',
+                        hasSpanBefore = el.prev().length > 0  && $(el.prev()[0]).attr('wlxml-tag') === 'span',
+                        hasSpanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
+
+
+                    var addInfo = function(toAdd, where) {
+                        var parentContents = elParent.contents(),
+                            idx = parentContents.index(el[0]),
+                            prev = idx > 0 ? parentContents[idx-1] : null,
+                            next = idx < parentContents.length - 1 ? parentContents[idx+1] : null,
+                            target, key;
+
+                        if(where === 'above') {
+                            target = prev ? $(prev) : elParent;
+                            key = prev ? 'orig-after' : 'orig-begin';
+                        } else if(where === 'below') {
+                            target = next ? $(next) : elParent;
+                            key = next ? 'orig-before' : 'orig-end';
+                        } else { throw new Object;}
+
+                        target.data(key, toAdd);
+                    }
+
+                    text.transformed = text.trimmed;
+                    
+                    if(hasSpanParent || hasSpanBefore || hasSpanAfter) {
+                        var startSpace = /\s/g.test(text.original.substr(0,1)),
+                            endSpace = /\s/g.test(text.original.substr(-1)) && text.original.length > 1;
+                        text.transformed = (startSpace && (hasSpanParent || hasSpanBefore) ? ' ' : '')
+                                    + text.trimmed
+                                    + (endSpace && (hasSpanParent || hasSpanAfter) ? ' ' : '');

                     } else {
                     } else {

-                        var oldLength = this.data.length;
-                        this.data = $.trim(this.data);
-                        if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1)
-                            this.data = ' ';
-                        if(this.data.length === 0) {
-                            $(this).remove();
-                            return true; // continue
+                        if(text.trimmed.length === 0 && text.original.length > 0 && elParent.contents().length === 1)
+                            text.transformed = ' ';
+                    }
+
+                    if(!text.transformed) {
+                        addInfo(text.original, 'below');
+                        el.remove();
+                        return true; // continue
+                    }
+
+                    if(text.transformed !== text.original) {
+                        if(!text.trimmed) {
+                            addInfo(text.original, 'below');
+                        } else {
+                            var startingMatch = text.original.match(/^\s+/g),
+                                endingMatch = text.original.match(/\s+$/g),
+                                startingWhiteSpace = startingMatch ? startingMatch[0] : null,
+                                endingWhiteSpace = endingMatch ? endingMatch[0] : null;
+
+                            if(endingWhiteSpace) {
+                                if(text.transformed[text.transformed.length - 1] === ' ' && endingWhiteSpace[0] === ' ')
+                                    endingWhiteSpace = endingWhiteSpace.substr(1);
+                                addInfo(endingWhiteSpace, 'below');
+                            }
+
+                            if(startingWhiteSpace) {
+                                if(text.transformed[0] === ' ' && startingWhiteSpace[startingWhiteSpace.length-1] === ' ')
+                                    startingWhiteSpace = startingWhiteSpace.substr(0, startingWhiteSpace.length -1);
+                                addInfo(startingWhiteSpace, 'above');
+                            }

                         }
                     }
 
                         }
                     }
 

-                    var element = documentElement.DocumentTextElement.create({text: this.data});
-                    $(this).replaceWith(element.dom());
+                    var element = documentElement.DocumentTextElement.create({text: text.transformed});
+                    el.replaceWith(element.dom());

                 });
             
             this.d = this.wrapper.children(0);
                 });
             
             this.d = this.wrapper.children(0);


@@ -74,20 +132,31 @@ $.extend(Canvas.prototype, {
                     e.preventDefault();
                     var cursor = canvas.getCursor();
                     if(!cursor.isSelecting()) {
                     e.preventDefault();
                     var cursor = canvas.getCursor();
                     if(!cursor.isSelecting()) {

-                        var position = cursor.getPosition();
-                        position.element.split({offset: position.offset});
+                        var position = cursor.getPosition(),
+                            elements = position.element.split({offset: position.offset}),
+                            newEmpty,
+                            goto;
+
+                        if(position.offsetAtBeginning)
+                            newEmpty = elements.first;
+                        else if(position.offsetAtEnd)
+                            newEmpty = elements.second;
+                        if(newEmpty) {
+                            goto = newEmpty.append(documentElement.DocumentTextElement.create({text: '\u200B'}, this));
+                            canvas.setCurrentElement(goto);
+                        }

                     }
                 }
             });
 
             this.wrapper.on('keyup', function(e) {
                 if(e.which >= 37 && e.which <= 40)
                     }
                 }
             });
 
             this.wrapper.on('keyup', function(e) {
                 if(e.which >= 37 && e.which <= 40)

-                    canvas.markAsCurrent(canvas.getCursor().getPosition().element)
+                    canvas.setCurrentElement(canvas.getCursor().getPosition().element, {caretTo: false})

             });
 
             this.wrapper.on('click', '[wlxml-tag], [wlxml-text]', function(e) {
                 e.stopPropagation();
             });
 
             this.wrapper.on('click', '[wlxml-tag], [wlxml-text]', function(e) {
                 e.stopPropagation();

-                canvas.markAsCurrent(canvas.getCursor().getPosition().element)
+                canvas.setCurrentElement(canvas.getDocumentElement(e.target), {caretTo: false});

             });
 
         } else {
             });
 
         } else {


@@ -156,17 +225,110 @@ $.extend(Canvas.prototype, {
 
     list: {},
 
 
     list: {},
 

-    markAsCurrent: function(element) {
-        if(element instanceof documentElement.DocumentTextElement) {
+
+
+    highlightElement: function(element) {
+        this.wrapper.find('.highlighted-element').removeClass('highlighted-element');
+        element.dom().addClass('highlighted-element');
+    },
+
+    dimElement: function(element) {
+        element.dom().removeClass('highlighted-element');
+    },
+    
+    getCurrentNodeElement: function() {
+        return this.getDocumentElement(this.wrapper.find('.current-node-element')[0]);
+    },
+
+    getCurrentTextElement: function() {
+        return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]);
+    },
+
+
+
+    setCurrentElement: function(element, params) {
+        params = _.extend({caretTo: 'end'}, params);
+        var findFirstDirectTextChild = function(e, nodeToLand) {
+            var byBrowser = this.getCursor().getPosition().element;
+            if(byBrowser && byBrowser.parent().sameNode(nodeToLand))
+                return byBrowser;
+            var children = e.children();
+            for(var i = 0; i < children.length; i++) {
+                if(children[i] instanceof documentElement.DocumentTextElement)
+                    return children[i];
+            }
+            return null;
+        }.bind(this);
+        var _markAsCurrent = function(element) {
+            if(element instanceof documentElement.DocumentTextElement) {
+                this.wrapper.find('.current-text-element').removeClass('current-text-element');
+                element.dom().addClass('current-text-element');
+            } else {
+                this.wrapper.find('.current-node-element').removeClass('current-node-element')
+                element.dom().addClass('current-node-element');
+                this.publisher('currentElementChanged', element);
+            }
+        }.bind(this);
+
+
+        var isTextElement = element instanceof documentElement.DocumentTextElement,
+            nodeElementToLand = isTextElement ? element.parent() : element,
+            textElementToLand = isTextElement ? element : findFirstDirectTextChild(element, nodeElementToLand),
+            currentTextElement = this.getCurrentTextElement(),
+            currentNodeElement = this.getCurrentNodeElement();
+
+        if(currentTextElement && !(currentTextElement.sameNode(textElementToLand)))

             this.wrapper.find('.current-text-element').removeClass('current-text-element');
             this.wrapper.find('.current-text-element').removeClass('current-text-element');

-            element.dom().addClass('current-text-element');
-            this.markAsCurrent(element.parent());
-            this.publisher('currentTextElementChanged', element);
+
+        if(textElementToLand) {
+            _markAsCurrent(textElementToLand);
+            if(params.caretTo || !textElementToLand.sameNode(this.getCursor().getPosition().element))
+                this._moveCaretToTextElement(textElementToLand, params.caretTo); // as method on element?
+            if(!(textElementToLand.sameNode(currentTextElement)))
+                this.publisher('currentTextElementSet', textElementToLand);
+        } else {
+            document.getSelection().removeAllRanges();
+        }
+
+        if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) {
+            _markAsCurrent(nodeElementToLand);
+
+            this.publisher('currentNodeElementSet', nodeElementToLand);
+        }
+    },
+
+    _moveCaretToTextElement: function(element, where) {
+        var range = document.createRange(),
+            node = element.dom().contents()[0];
+
+        if(typeof where !== 'number') {
+            range.selectNodeContents(node);

         } else {
         } else {

-            this.wrapper.find('.current-node-element').removeClass('current-node-element')
-            element.dom().addClass('current-node-element');
+            range.setStart(node, where);

         }
         }

+        
+        var collapseArg = true;
+        if(where === 'end')
+            collapseArg = false;
+        range.collapse(collapseArg);
+        
+        var selection = document.getSelection();
+
+        selection.removeAllRanges();
+        selection.addRange(range);
+        this.wrapper.focus(); // FF requires this for caret to be put where range colllapses, Chrome doesn't.
+    },

 
 

+    setCursorPosition: function(position) {
+        if(position.element)
+            this._moveCaretToTextElement(position.element, position.offset);
+    },
+
+    toXML: function() {
+        var parent = $('<div>'),
+            parts = this.doc().toXML(0);
+        parent.append(parts);
+        return parent.html();

     }
 });
 
     }
 });
 


@@ -328,15 +490,31 @@ $.extend(Cursor.prototype, {
     getSelectionAnchor: function() {
         return this.getSelectionBoundry('anchor');
     },
     getSelectionAnchor: function() {
         return this.getSelectionBoundry('anchor');
     },

+    getSelectionFocus: function() {
+        return this.getSelectionBoundry('focus');
+    },

     getSelectionBoundry: function(which) {
         var selection = window.getSelection(),
             anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
             focusElement = this.canvas.getDocumentElement(selection.focusNode);
         
     getSelectionBoundry: function(which) {
         var selection = window.getSelection(),
             anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
             focusElement = this.canvas.getDocumentElement(selection.focusNode);
         

+        if(anchorElement instanceof documentElement.DocumentNodeElement || focusElement instanceof documentElement.DocumentNodeElement)
+            return {};
+

         if(which === 'anchor') {
             return {
                 element: anchorElement,
         if(which === 'anchor') {
             return {
                 element: anchorElement,

-                offset: selection.anchorOffset
+                offset: selection.anchorOffset,
+                offsetAtBeginning: selection.anchorOffset === 0,
+                offsetAtEnd: anchorElement && anchorElement.getText().length === selection.anchorOffset
+            };
+        }
+        if(which === 'focus') {
+            return {
+                element: focusElement,
+                offset: selection.focusOffset,
+                offsetAtBeginning: selection.focusOffset === 0,
+                offsetAtEnd: focusElement && focusElement.getText().length === selection.focusOffset

             };
         }
         
             };
         }
         


@@ -366,7 +544,7 @@ $.extend(Cursor.prototype, {
                 }
             }
         } else {
                 }
             }
         } else {

-            // TODO: Handle order
+            // TODO: Handle order via https://developer.mozilla.org/en-US/docs/Web/API/Node.compareDocumentPosition

             if(which === 'start') {
                 element = anchorElement;
                 offset = selection.anchorOffset
             if(which === 'start') {
                 element = anchorElement;
                 offset = selection.anchorOffset


@@ -378,7 +556,9 @@ $.extend(Cursor.prototype, {
 
         return {
             element: element,
 
         return {
             element: element,

-            offset: offset
+            offset: offset,
+            offsetAtBeginning: offset === 0,
+            offsetAtEnd: element.getText().length === offset

         }
     }
 })
         }
     }
 })