canvas api: fixing unwrapContents

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

diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js
index f9f3ee0..51af41b 100644 (file)
--- a/modules/documentCanvas/canvas/canvas.js
+++ b/modules/documentCanvas/canvas/canvas.js
@@ -1,13 +1,16 @@
 define([
 'libs/jquery-1.9.1.min',
 'libs/underscore-min',
 define([
 'libs/jquery-1.9.1.min',
 'libs/underscore-min',

+'libs/backbone-min',

 'modules/documentCanvas/canvas/documentElement',
 'modules/documentCanvas/canvas/documentElement',

+'modules/documentCanvas/canvas/keyboard',

 'modules/documentCanvas/canvas/utils'
 'modules/documentCanvas/canvas/utils'

-], function($, _, documentElement, utils) {
+], function($, _, Backbone, documentElement, keyboard, utils) {

     
 'use strict';
 
 var Canvas = function(wlxml, publisher) {
     
 'use strict';
 
 var Canvas = function(wlxml, publisher) {

+    this.eventBus = _.extend({}, Backbone.Events);

     this.loadWlxml(wlxml);
     this.publisher = publisher ? publisher : function() {};
 };
     this.loadWlxml(wlxml);
     this.publisher = publisher ? publisher : function() {};
 };


@@ -19,7 +22,8 @@ $.extend(Canvas.prototype, {
         if(d) {
             this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
             this.wrapper.append(d);
         if(d) {
             this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
             this.wrapper.append(d);

-            
+            var canvas = this;
+

             this.wrapper.find('*').replaceWith(function() {
                 var currentTag = $(this);
                 if(currentTag.attr('wlxml-tag'))
             this.wrapper.find('*').replaceWith(function() {
                 var currentTag = $(this);
                 if(currentTag.attr('wlxml-tag'))


@@ -34,45 +38,56 @@ $.extend(Canvas.prototype, {
                         others[attr.name] = attr.value;
                 }
 
                         others[attr.name] = attr.value;
                 }
 

-                var element = documentElement.DocumentNodeElement.create({
+                var element = canvas.createNodeElement({

                     tag: currentTag.prop('tagName').toLowerCase(),
                     klass: currentTag.attr('class'),
                     meta: meta,
                     tag: currentTag.prop('tagName').toLowerCase(),
                     klass: currentTag.attr('class'),
                     meta: meta,

-                    others: others
+                    others: others,
+                    rawChildren: currentTag.contents(),
+                    prepopulateOnEmpty: true

                 });
 
                 });
 

-                element.dom().append(currentTag.contents());

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

+            var FIRST_CONTENT_INDEX = 0;
+
+            // @@ TODO - refactor!
+            var getNode = function(element) {
+                return element.children('[document-element-content]');
+            }
+

             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() {

+

                     // TODO: use DocumentElement API
 
                     var el = $(this),
                         text = {original: el.text(), trimmed: $.trim(el.text())},
                         elParent = el.parent(),
                         hasSpanParent = elParent.attr('wlxml-tag') === 'span',
                     // TODO: use DocumentElement API
 
                     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 && $(el.next()[0]).attr('wlxml-tag') === 'span';
+                        hasSpanBefore = el.prev().length > 0  && getNode($(el.prev()[0])).attr('wlxml-tag') === 'span',
+                        hasSpanAfter = el.next().length > 0 && getNode($(el.next()[0])).attr('wlxml-tag') === 'span';

 
 

+                    if(el.parent().hasClass('canvas-widget') || elParent.attr('document-text-element') !== undefined)
+                        return true; // continue

 
                     var addInfo = function(toAdd, where) {
                         var parentContents = elParent.contents(),
                             idx = parentContents.index(el[0]),
 
                     var addInfo = function(toAdd, where) {
                         var parentContents = elParent.contents(),
                             idx = parentContents.index(el[0]),

-                            prev = idx > 0 ? parentContents[idx-1] : null,
+                            prev = idx > FIRST_CONTENT_INDEX ? parentContents[idx-1] : null,

                             next = idx < parentContents.length - 1 ? parentContents[idx+1] : null,
                             target, key;
 
                         if(where === 'above') {
                             next = idx < parentContents.length - 1 ? parentContents[idx+1] : null,
                             target, key;
 
                         if(where === 'above') {

-                            target = prev ? $(prev) : elParent;
+                            target = prev ? $(prev) : elParent.parent();

                             key = prev ? 'orig-after' : 'orig-begin';
                         } else if(where === 'below') {
                             key = prev ? 'orig-after' : 'orig-begin';
                         } else if(where === 'below') {

-                            target = next ? $(next) : elParent;
+                            target = next ? $(next) : elParent.parent();

                             key = next ? 'orig-before' : 'orig-end';
                         } else { throw new Object;}
 
                             key = next ? 'orig-before' : 'orig-end';
                         } else { throw new Object;}
 


@@ -127,90 +142,59 @@ $.extend(Canvas.prototype, {
             
             this.d = this.wrapper.children(0);
 
             
             this.d = this.wrapper.children(0);
 

-            var canvas = this;
-            this.wrapper.on('keydown', function(e) {
-                if(e.which === 13) { 
-                    e.preventDefault();
-                    var cursor = canvas.getCursor();
-                    if(!cursor.isSelecting()) {
-                        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: ''}, this));
-                            canvas.setCurrentElement(goto);
-                        }
-                    }
-                }
-            });
-
+            this.wrapper.on('keyup keydown keypress', function(e) {
+                keyboard.handleKey(e, this);
+            }.bind(this));

 
 

-            var KEYS = {
-                ARROW_LEFT: 37,
-                ARROW_UP: 38,
-                ARROW_RIGHT: 39,
-                ARROW_DOWN: 40
-            }
-
-            this.wrapper.on('keyup', function(e) {
-                if(e.which >= 37 && e.which <= 40)
-                    canvas.setCurrentElement(canvas.getCursor().getPosition().element, {caretTo: false})
-            });
-         
-            this.wrapper.on('keydown', function(e) {
-                if(e.which >= 37 && e.which <= 40) {
-                    var position = canvas.getCursor().getPosition(),
-                        element = position.element;
-                    if(element && (element instanceof documentElement.DocumentTextElement)) {
-                        if(element.isEmpty()) {
-                            var direction, caretTo;
-                            if(e.which === KEYS.ARROW_LEFT  || e.which === KEYS.ARROW_UP) {
-                                direction = 'above';
-                                caretTo = 'end';
-                            } else {
-                                direction = 'below';
-                                caretTo = 'start';
-                            }
-                            var el = canvas.getDocumentElement(utils.nearestInDocumentOrder('[document-text-element]', direction, window.getSelection().focusNode))
-                            canvas.setCurrentElement(element, {caretTo: caretTo});
-                        } else {
-                            var txt = element.dom().contents()[0].data;
-                            if(e.which === KEYS.ARROW_LEFT && position.offset > 1 && txt.charAt(position.offset-2) === utils.unicode.ZWS) {
-                                e.preventDefault();
-                                canvas._moveCaretToTextElement(element, position.offset-2);
-                            }
-                            if(e.which === KEYS.ARROW_RIGHT && position.offset < txt.length - 1 && txt.charAt(position.offset+1) === utils.unicode.ZWS) {
-                                e.preventDefault();
-                                canvas._moveCaretToTextElement(element, position.offset+2);
-                            }
-                        }
-                    }
-
-
-                }
-            });
-
-            this.wrapper.on('click', '[wlxml-tag], [wlxml-text]', function(e) {
+            this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {

                 e.stopPropagation();
                 e.stopPropagation();

-                canvas.setCurrentElement(canvas.getDocumentElement(e.target), {caretTo: false});
+                canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});

             });
 
             });
 

-

             var observer = new MutationObserver(function(mutations) {
                 mutations.forEach(function(mutation) {
             var observer = new MutationObserver(function(mutations) {
                 mutations.forEach(function(mutation) {

-                    if(documentElement.DocumentTextElement.isContentContainer(mutation.target) && mutation.target.data === '')
-                        mutation.target.data = utils.unicode.ZWS;
+                    if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
+                        observer.disconnect();
+                        if(mutation.target.data === '')
+                            mutation.target.data = utils.unicode.ZWS;
+                        else if(mutation.oldValue === utils.unicode.ZWS) {
+                            mutation.target.data = mutation.target.data.replace(utils.unicode.ZWS, '');
+                            canvas._moveCaretToTextElement(canvas.getDocumentElement(mutation.target), 'end');
+                        }
+                        observer.observe(canvas.d[0], config);
+                        canvas.publisher('contentChanged');
+                    }

                 });
             });
             var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
             observer.observe(this.d[0], config);
 
                 });
             });
             var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
             observer.observe(this.d[0], config);
 

+
+            this.wrapper.on('mouseover', '[document-node-element], [document-text-element]', function(e) {
+                var el = canvas.getDocumentElement(e.currentTarget);
+                if(!el)
+                    return;
+                e.stopPropagation();
+                if(el instanceof documentElement.DocumentTextElement)
+                    el = el.parent();
+                el.toggleLabel(true);
+            });
+            this.wrapper.on('mouseout', '[document-node-element], [document-text-element]', function(e) {
+                var el = canvas.getDocumentElement(e.currentTarget);
+                if(!el)
+                    return;
+                e.stopPropagation();
+                if(el instanceof documentElement.DocumentTextElement)
+                    el = el.parent();
+                el.toggleLabel(false);
+            });
+
+            this.eventBus.on('elementToggled', function(toggle, element) {
+                if(!toggle) {
+                    canvas.setCurrentElement(element.getPreviousTextElement());
+                }
+            })
+

         } else {
             this.d = null;
         }
         } else {
             this.d = null;
         }


@@ -226,6 +210,10 @@ $.extend(Canvas.prototype, {
         return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
     },
 
         return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
     },
 

+    createNodeElement: function(params) {
+        return documentElement.DocumentNodeElement.create(params, this);
+    },
+

     wrapText: function(params) {
         params = _.extend({textNodeIdx: 0}, params);
         if(typeof params.textNodeIdx === 'number')
     wrapText: function(params) {
         params = _.extend({textNodeIdx: 0}, params);
         if(typeof params.textNodeIdx === 'number')


@@ -243,7 +231,7 @@ $.extend(Canvas.prototype, {
             suffixOutside = textNode2.getText().substr(params.offsetEnd)
         ;
         
             suffixOutside = textNode2.getText().substr(params.offsetEnd)
         ;
         

-        var wrapperElement = documentElement.DocumentNodeElement.create({tag: params._with.tag, klass: params._with.klass});
+        var wrapperElement = this.createNodeElement({tag: params._with.tag, klass: params._with.klass});

         textNode1.after(wrapperElement);
         textNode1.detach();
         
         textNode1.after(wrapperElement);
         textNode1.detach();
         


@@ -266,6 +254,59 @@ $.extend(Canvas.prototype, {
             wrapperElement.after({text: suffixOutside});
         return wrapperElement;
     },
             wrapperElement.after({text: suffixOutside});
         return wrapperElement;
     },

+
+    wrapElements: function(params) {
+        if(!(params.element1.parent().sameNode(params.element2.parent())))
+            return;
+
+        var parent = params.element1.parent(),
+            parentChildren = parent.children(),
+            wrapper = this.createNodeElement({
+                tag: params._with.tag,
+                klass: params._with.klass}),
+            idx1 = parent.childIndex(params.element1),
+            idx2 = parent.childIndex(params.element2);
+
+        if(idx1 > idx2) {
+            var tmp = idx1;
+            idx1 = idx2;
+            idx2 = tmp;
+        }
+
+        var insertingMethod, insertingTarget;
+        if(idx1 === 0) {
+            insertingMethod = 'prepend';
+            insertingTarget = parent;
+        } else {
+            insertingMethod = 'after';
+            insertingTarget = parentChildren[idx1-1];
+        }
+
+        for(var i = idx1; i <= idx2; i++) {
+            wrapper.append(parentChildren[i].detach());
+        }
+
+        insertingTarget[insertingMethod](wrapper);
+        return wrapper;
+    },
+
+    getSiblingParents: function(params) {
+        var parents1 = [params.element1].concat(params.element1.parents()).reverse(),
+            parents2 = [params.element2].concat(params.element2.parents()).reverse(),
+            noSiblingParents = null;
+
+        if(parents1.length === 0 || parents2.length === 0 || !(parents1[0].sameNode(parents2[0])))
+            return noSiblingParents;
+
+        var i;
+        for(i = 0; i < Math.min(parents1.length, parents2.length); i++) {
+            if(parents1[i].sameNode(parents2[i]))
+                continue;
+            break;
+        }
+        return {element1: parents1[i], element2: parents2[i]};
+    },
+

     getDocumentElement: function(from) {
         if(from instanceof HTMLElement || from instanceof Text) {
            return documentElement.DocumentElement.fromHTMLElement(from, this);
     getDocumentElement: function(from) {
         if(from instanceof HTMLElement || from instanceof Text) {
            return documentElement.DocumentElement.fromHTMLElement(from, this);


@@ -277,19 +318,9 @@ $.extend(Canvas.prototype, {
 
     list: {},
 
 
     list: {},
 

-
-
-    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() {
     
     getCurrentNodeElement: function() {

-        return this.getDocumentElement(this.wrapper.find('.current-node-element')[0]);
+        return this.getDocumentElement(this.wrapper.find('.current-node-element').parent()[0]);

     },
 
     getCurrentTextElement: function() {
     },
 
     getCurrentTextElement: function() {


@@ -317,7 +348,7 @@ $.extend(Canvas.prototype, {
                 element.dom().addClass('current-text-element');
             } else {
                 this.wrapper.find('.current-node-element').removeClass('current-node-element')
                 element.dom().addClass('current-text-element');
             } else {
                 this.wrapper.find('.current-node-element').removeClass('current-node-element')

-                element.dom().addClass('current-node-element');
+                element._container().addClass('current-node-element');

                 this.publisher('currentElementChanged', element);
             }
         }.bind(this);
                 this.publisher('currentElementChanged', element);
             }
         }.bind(this);


@@ -389,7 +420,8 @@ $.extend(Canvas.prototype.list, {
         if(!(params.element1.parent().sameNode(params.element2.parent())))
             return false;
             
         if(!(params.element1.parent().sameNode(params.element2.parent())))
             return false;
             

-        var parent = params.element1.parent();
+        var parent = params.element1.parent(),
+            canvas = params.element1.canvas;

         
         if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
             var tmp = params.element1;
         
         if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
             var tmp = params.element1;


@@ -400,7 +432,6 @@ $.extend(Canvas.prototype.list, {
         var elementsToWrap = [];
         
         var place = 'before';
         var elementsToWrap = [];
         
         var place = 'before';

-        var canvas = this;

         parent.children().some(function(element) {
             var _e = element;
             if(element.sameNode(params.element1))
         parent.children().some(function(element) {
             var _e = element;
             if(element.sameNode(params.element1))


@@ -418,11 +449,11 @@ $.extend(Canvas.prototype.list, {
                 return true;
         });
         
                 return true;
         });
         

-        var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});
-        
+        var listElement = canvas.createNodeElement({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});

         var toret;
         if(parent.is('list')) {
         var toret;
         if(parent.is('list')) {

-            listElement.wrapWithNodeElement({tag: 'div', klass: 'item'});
+            var item = listElement.wrapWithNodeElement({tag: 'div', klass: 'item'});
+            item.exec('toggleBullet', false);

             toret = listElement.parent();
         } else {
             toret = listElement;
             toret = listElement.parent();
         } else {
             toret = listElement;


@@ -448,6 +479,7 @@ $.extend(Canvas.prototype.list, {
             succeedingItems = [],
             items = list.children(),
             listIsNested = list.parent().getWlxmlClass() === 'item',
             succeedingItems = [],
             items = list.children(),
             listIsNested = list.parent().getWlxmlClass() === 'item',

+            canvas = params.element1.canvas,

             i;
 
         if(idx1 > idx2) {
             i;
 
         if(idx1 > idx2) {


@@ -489,7 +521,7 @@ $.extend(Canvas.prototype.list, {
                     item.setWlxmlClass(null);
                 reference = item;
             });
                     item.setWlxmlClass(null);
                 reference = item;
             });

-            var secondList = documentElement.DocumentNodeElement.create({tag: 'div', klass:'list-items'}, this),
+            var secondList = canvas.createNodeElement({tag: 'div', klass:'list-items'}),

                 toAdd = secondList;
             
             if(listIsNested) {
                 toAdd = secondList;
             
             if(listIsNested) {


@@ -550,7 +582,7 @@ $.extend(Cursor.prototype, {
             anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
             focusElement = this.canvas.getDocumentElement(selection.focusNode);
         
             anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
             focusElement = this.canvas.getDocumentElement(selection.focusNode);
         

-        if(anchorElement instanceof documentElement.DocumentNodeElement || focusElement instanceof documentElement.DocumentNodeElement)
+        if((!anchorElement) || (anchorElement instanceof documentElement.DocumentNodeElement) || (!focusElement) || focusElement instanceof documentElement.DocumentNodeElement)

             return {};
 
         if(which === 'anchor') {
             return {};
 
         if(which === 'anchor') {


@@ -558,7 +590,7 @@ $.extend(Cursor.prototype, {
                 element: anchorElement,
                 offset: selection.anchorOffset,
                 offsetAtBeginning: selection.anchorOffset === 0,
                 element: anchorElement,
                 offset: selection.anchorOffset,
                 offsetAtBeginning: selection.anchorOffset === 0,

-                offsetAtEnd: anchorElement && anchorElement.getText().length === selection.anchorOffset
+                offsetAtEnd: selection.anchorNode.data.length === selection.anchorOffset

             };
         }
         if(which === 'focus') {
             };
         }
         if(which === 'focus') {


@@ -566,7 +598,7 @@ $.extend(Cursor.prototype, {
                 element: focusElement,
                 offset: selection.focusOffset,
                 offsetAtBeginning: selection.focusOffset === 0,
                 element: focusElement,
                 offset: selection.focusOffset,
                 offsetAtBeginning: selection.focusOffset === 0,

-                offsetAtEnd: focusElement && focusElement.getText().length === selection.focusOffset
+                offsetAtEnd: selection.focusNode.data.length === selection.focusOffset

             };
         }
         
             };
         }
         


@@ -579,11 +611,11 @@ $.extend(Cursor.prototype, {
             if(anchorFirst) {
                 if(which === 'start') {
                     element = anchorElement;
             if(anchorFirst) {
                 if(which === 'start') {
                     element = anchorElement;

-                    offset = selection.anchorOffset;
+                    offset = selection.anchorOffset

                 }
                 else if(which === 'end') {
                     element = focusElement,
                 }
                 else if(which === 'end') {
                     element = focusElement,

-                    offset = selection.focusOffset;
+                    offset = selection.focusOffset

                 }
             } else {
                 if(which === 'start') {
                 }
             } else {
                 if(which === 'start') {


@@ -592,7 +624,7 @@ $.extend(Cursor.prototype, {
                 }
                 else if(which === 'end') {
                     element = anchorElement;
                 }
                 else if(which === 'end') {
                     element = anchorElement;

-                    offset = selection.anchorOffset;
+                    offset = selection.anchorOffset

                 }
             }
         } else {
                 }
             }
         } else {


@@ -606,11 +638,12 @@ $.extend(Cursor.prototype, {
             }
         }
 
             }
         }
 

+        var nodeLen = (element.sameNode(focusElement) ? selection.focusNode : selection.anchorNode).length;

         return {
             element: element,
             offset: offset,
             offsetAtBeginning: offset === 0,
         return {
             element: element,
             offset: offset,
             offsetAtBeginning: offset === 0,

-            offsetAtEnd: element.getText().length === offset
+            offsetAtEnd: nodeLen === offset

         }
     }
 })
         }
     }
 })