X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/252d70d691c5e524dd13bdc1060395bafcde07cc..5f121e33df901aa33a79b2896e79759da6411948:/src/editor/modules/documentCanvas/canvas/canvas.js?ds=sidebyside

diff --git a/src/editor/modules/documentCanvas/canvas/canvas.js b/src/editor/modules/documentCanvas/canvas/canvas.js
index 752b947..b217d18 100644
--- a/src/editor/modules/documentCanvas/canvas/canvas.js
+++ b/src/editor/modules/documentCanvas/canvas/canvas.js
@@ -2,37 +2,40 @@ define([
 'libs/jquery',
 'libs/underscore',
 'libs/backbone',
+'fnpjs/logging/logging',
 'modules/documentCanvas/canvas/documentElement',
 'modules/documentCanvas/canvas/keyboard',
 'modules/documentCanvas/canvas/utils',
 'modules/documentCanvas/canvas/wlxmlListener'
-], function($, _, Backbone, documentElement, keyboard, utils, wlxmlListener) {
+], function($, _, Backbone, logging, documentElement, keyboard, utils, wlxmlListener) {
     
 'use strict';
+/* global document:false, window:false, Node:false */
 
-var TextHandler = function(canvas) {this.canvas = canvas; this.buffer = null};
+var logger = logging.getLogger('canvas');
+
+var TextHandler = function(canvas) {this.canvas = canvas; this.buffer = null;};
 $.extend(TextHandler.prototype, {
     handle: function(node, text) {
-        //console.log('canvas text handler: ' + text);
         this.setText(text, node);
-        return;
-        if(!this.node) {
-            this.node = node;
-        }
-        if(this.node.sameNode(node)) {
-            this._ping(text);
-        } else {
-            this.flush();
-            this.node = node;
-            this._ping(text);
-        }
+        // return;
+        // if(!this.node) {
+        //     this.node = node;
+        // }
+        // if(this.node.sameNode(node)) {
+        //     this._ping(text);
+        // } else {
+        //     this.flush();
+        //     this.node = node;
+        //     this._ping(text);
+        // }
     },
     _ping: _.throttle(function(text) {
         this.buffer = text;
         this.flush();
     }, 1000),
     flush: function() {
-        if(this.buffer != null) {
+        if(this.buffer !== null) {
             this.setText(this.buffer, this.node);
             this.buffer = null;
         }
@@ -51,6 +54,7 @@ var Canvas = function(wlxmlDocument, publisher) {
     this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
     this.wlxmlListener = wlxmlListener.create(this);
     this.loadWlxmlDocument(wlxmlDocument);
+    this.setupEventHandling();
     this.publisher = publisher ? publisher : function() {};
     this.textHandler = new TextHandler(this);
 };
@@ -65,21 +69,37 @@ $.extend(Canvas.prototype, {
         this.wlxmlListener.listenTo(wlxmlDocument);
         this.wlxmlDocument = wlxmlDocument;
         this.reloadRoot();
-        this.setupEventHandling();
     },
 
-    reloadRoot: function() {
-        var canvasDOM = this.generateCanvasDOM(this.wlxmlDocument.root);
-        //var canvasDOM = this.wlxmlDocument.root.getData('canvasElement') ? this.wlxmlDocument.root.getData('canvasElement').dom() : this.generateCanvasDOM(this.wlxmlDocument.root);
+    createElement: function(wlxmlNode) {
+        var Factory = wlxmlNode.nodeType === Node.TEXT_NODE ? documentElement.DocumentTextElement : documentElement.DocumentNodeElement;
+        return new Factory(wlxmlNode, this);
+    },
 
-        this.wrapper.empty();
-        this.wrapper.append(canvasDOM);
-        this.d = this.wrapper.children(0);
+    getDocumentElement: function(htmlElement) {
+        /* globals HTMLElement, Text */
+        if(!htmlElement || !(htmlElement instanceof HTMLElement || htmlElement instanceof Text)) {
+            return null;
+        }
+        var $element = $(htmlElement);
+        if(htmlElement.nodeType === Node.ELEMENT_NODE && $element.attr('document-node-element') !== undefined) {
+            return $element.data('canvas-element');
+        }
+
+        if(htmlElement.nodeType === Node.TEXT_NODE && $element.parent().attr('document-text-element') !== undefined) {
+            $element = $element.parent();
+        }
+
+        if($element.attr('document-text-element') !== undefined || (htmlElement.nodeType === Node.TEXT_NODE && $element.parent().attr('document-text-element') !== undefined)) {
+            //return DocumentTextElement.fromHTMLElement(htmlElement, canvas);
+            return $element.data('canvas-element');
+        }
     },
 
-    generateCanvasDOM: function(wlxmlNode) {
-        var element = documentElement.DocumentNodeElement.create(wlxmlNode, this);
-        return element.dom();
+    reloadRoot: function() {
+        this.rootElement = this.createElement(this.wlxmlDocument.root);
+        this.wrapper.empty();
+        this.wrapper.append(this.rootElement.dom());
     },
 
     setupEventHandling: function() {
@@ -88,33 +108,68 @@ $.extend(Canvas.prototype, {
             keyboard.handleKey(e, this);
         }.bind(this));
 
+        var mouseDown;
+        this.wrapper.on('mousedown', '[document-node-element], [document-text-element]', function(e) {
+            mouseDown = e.target;
+        });
+
         this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
             e.stopPropagation();
-            canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
+            if(e.originalEvent.detail === 3) {
+                e.preventDefault();
+                canvas._moveCaretToTextElement(canvas.getDocumentElement(e.currentTarget), 'whole');
+            } else {
+                if(mouseDown === e.target) {
+                    canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
+                }
+            }
         });
 
+        this.wrapper.on('paste', function(e) {
+            e.preventDefault();
 
+            var clipboardData = e.originalEvent.clipboardData;
+            if(!clipboardData || !clipboardData.getData) {
+                return; // TODO: alert
+            }
+
+            var text = clipboardData.getData('text/plain').replace(/\r?\n|\r/g, ' '),
+                cursor = canvas.getCursor(),
+                element = cursor.getPosition().element,
+                lhs, rhs;
+            
+            if(element && cursor.isWithinElement()) {
+                lhs = element.getText().substr(0, cursor.getSelectionStart().offset);
+                rhs = element.getText().substr(cursor.getSelectionEnd().offset);
+                element.setText(lhs+text+rhs);
+                canvas.setCurrentElement(element, {caretTo: lhs.length + text.length});
+            } else {
+                /* jshint noempty:false */
+                // TODO: alert
+            }
+        });
 
+        /* globals MutationObserver */
         var observer = new MutationObserver(function(mutations) {
             mutations.forEach(function(mutation) {
                 if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
                     observer.disconnect();
-                    if(mutation.target.data === '')
+                    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.wrapper[0], config);
-                    canvas.publisher('contentChanged');
 
                     var textElement = canvas.getDocumentElement(mutation.target),
                         toSet = mutation.target.data !== utils.unicode.ZWS ? mutation.target.data : '';
 
                     //textElement.data('wlxmlNode').setText(toSet);
                     //textElement.data('wlxmlNode').document.transform('setText', {node: textElement.data('wlxmlNode'), text: toSet});
-                    if(textElement.data('wlxmlNode').getText() != toSet) {
-                        canvas.textHandler.handle(textElement.data('wlxmlNode'), toSet);
+                    if(textElement.wlxmlNode.getText() !== toSet) {
+                        canvas.textHandler.handle(textElement.wlxmlNode, toSet);
                     }
                 }
             });
@@ -125,20 +180,24 @@ $.extend(Canvas.prototype, {
 
         this.wrapper.on('mouseover', '[document-node-element], [document-text-element]', function(e) {
             var el = canvas.getDocumentElement(e.currentTarget);
-            if(!el)
+            if(!el) {
                 return;
+            }
             e.stopPropagation();
-            if(el instanceof documentElement.DocumentTextElement)
+            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)
+            if(!el) {
                 return;
+            }
             e.stopPropagation();
-            if(el instanceof documentElement.DocumentTextElement)
+            if(el instanceof documentElement.DocumentTextElement) {
                 el = el.parent();
+            }
             el.toggleLabel(false);
         });
 
@@ -154,9 +213,7 @@ $.extend(Canvas.prototype, {
     },
 
     doc: function() {
-        if(this.d === null)
-            return null;
-        return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
+        return this.rootElement;
     },
 
     toggleElementHighlight: function(node, toggle) {
@@ -164,44 +221,55 @@ $.extend(Canvas.prototype, {
         element.toggleHighlight(toggle);
     },
 
-    createNodeElement: function(params) {
-        return documentElement.DocumentNodeElement.create(params, this);
-    },
-
-    getDocumentElement: function(from) {
-        if(from instanceof HTMLElement || from instanceof Text) {
-           return documentElement.DocumentElement.fromHTMLElement(from, this);
-        }
-    },
     getCursor: function() {
         return new Cursor(this);
     },
 
     
     getCurrentNodeElement: function() {
-        return this.getDocumentElement(this.wrapper.find('.current-node-element').parent()[0]);
+        var htmlElement = this.wrapper.find('.current-node-element').parent()[0];
+        if(htmlElement) {
+            return this.getDocumentElement(htmlElement);
+        }
     },
 
     getCurrentTextElement: function() {
-        return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]);
+        var htmlElement = this.wrapper.find('.current-text-element')[0];
+        if(htmlElement) {
+            return this.getDocumentElement(htmlElement);
+        }
     },
 
-
+    contains: function(element) {
+        return element.dom().parents().index(this.wrapper) !== -1;
+    },
 
     setCurrentElement: function(element, params) {
+        if(!element) {
+            logger.debug('Invalid element passed to setCurrentElement: ' + element);
+            return;
+        }
+
         if(!(element instanceof documentElement.DocumentElement)) {
             element = utils.findCanvasElement(element);
         }
 
+        if(!element || !this.contains(element)) {
+            logger.warning('Cannot set current element: element doesn\'t exist on canvas');
+            return;
+        }
+
         params = _.extend({caretTo: 'end'}, params);
         var findFirstDirectTextChild = function(e, nodeToLand) {
             var byBrowser = this.getCursor().getPosition().element;
-            if(byBrowser && byBrowser.parent().sameNode(nodeToLand))
+            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)
+                if(children[i] instanceof documentElement.DocumentTextElement) {
                     return children[i];
+                }
             }
             return null;
         }.bind(this);
@@ -210,9 +278,8 @@ $.extend(Canvas.prototype, {
                 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')
+                this.wrapper.find('.current-node-element').removeClass('current-node-element');
                 element._container().addClass('current-node-element');
-                this.publisher('currentElementChanged', element);
             }
         }.bind(this);
 
@@ -223,15 +290,18 @@ $.extend(Canvas.prototype, {
             currentTextElement = this.getCurrentTextElement(),
             currentNodeElement = this.getCurrentNodeElement();
 
-        if(currentTextElement && !(currentTextElement.sameNode(textElementToLand)))
+        if(currentTextElement && !(currentTextElement.sameNode(textElementToLand))) {
             this.wrapper.find('.current-text-element').removeClass('current-text-element');
+        }
 
         if(textElementToLand) {
             _markAsCurrent(textElementToLand);
-            if(params.caretTo || !textElementToLand.sameNode(this.getCursor().getPosition().element))
+            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.data('wlxmlNode'));
+            }
+            if(!(textElementToLand.sameNode(currentTextElement))) {
+                this.publisher('currentTextElementSet', textElementToLand.wlxmlNode);
+            }
         } else {
             document.getSelection().removeAllRanges();
         }
@@ -239,7 +309,7 @@ $.extend(Canvas.prototype, {
         if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) {
             _markAsCurrent(nodeElementToLand);
 
-            this.publisher('currentNodeElementSet', nodeElementToLand.data('wlxmlNode'));
+            this.publisher('currentNodeElementSet', nodeElementToLand.wlxmlNode);
         }
     },
 
@@ -253,11 +323,13 @@ $.extend(Canvas.prototype, {
             range.setStart(node, where);
         }
         
-        var collapseArg = true;
-        if(where === 'end')
-            collapseArg = false;
-        range.collapse(collapseArg);
-        
+        if(where !== 'whole') {
+            var collapseArg = true;
+            if(where === 'end') {
+                collapseArg = false;
+            }
+            range.collapse(collapseArg);
+        }
         var selection = document.getSelection();
 
         selection.removeAllRanges();
@@ -266,8 +338,9 @@ $.extend(Canvas.prototype, {
     },
 
     setCursorPosition: function(position) {
-        if(position.element)
+        if(position.element) {
             this._moveCaretToTextElement(position.element, position.offset);
+        }
     }
 });
 
@@ -284,6 +357,9 @@ $.extend(Cursor.prototype, {
     isSelectingWithinElement: function() {
         return this.isSelecting() && this.getSelectionStart().element.sameNode(this.getSelectionEnd().element);
     },
+    isWithinElement: function() {
+        return !this.isSelecting() || this.isSelectingWithinElement();
+    },
     isSelectingSiblings: function() {
         return this.isSelecting() && this.getSelectionStart().element.parent().sameNode(this.getSelectionEnd().element.parent());
     },
@@ -303,75 +379,81 @@ $.extend(Cursor.prototype, {
         return this.getSelectionBoundry('focus');
     },
     getSelectionBoundry: function(which) {
+        /* globals window */
         var selection = window.getSelection(),
             anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
             focusElement = this.canvas.getDocumentElement(selection.focusNode);
         
-        if((!anchorElement) || (anchorElement instanceof documentElement.DocumentNodeElement) || (!focusElement) || focusElement instanceof documentElement.DocumentNodeElement)
+        if((!anchorElement) || (anchorElement instanceof documentElement.DocumentNodeElement) || (!focusElement) || focusElement instanceof documentElement.DocumentNodeElement) {
             return {};
+        }
 
         if(which === 'anchor') {
             return {
                 element: anchorElement,
                 offset: selection.anchorOffset,
-                offsetAtBeginning: selection.anchorOffset === 0,
-                offsetAtEnd: selection.anchorNode.data.length === selection.anchorOffset
+                offsetAtBeginning: selection.anchorOffset === 0 || anchorElement.getText() === '',
+                offsetAtEnd: selection.anchorNode.data.length === selection.anchorOffset || anchorElement.getText() === ''
             };
         }
         if(which === 'focus') {
             return {
                 element: focusElement,
                 offset: selection.focusOffset,
-                offsetAtBeginning: selection.focusOffset === 0,
-                offsetAtEnd: selection.focusNode.data.length === selection.focusOffset
+                offsetAtBeginning: selection.focusOffset === 0 || focusElement.getText() === '',
+                offsetAtEnd: selection.focusNode.data.length === selection.focusOffset || focusElement.getText() === '',
             };
         }
         
-        var element,
-            offset;
-
-        if(anchorElement.parent().sameNode(focusElement.parent())) {
-            var parent = anchorElement.parent(),
-                anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement);
+        var getPlaceData = function(anchorFirst) {
+            var element, offset;
             if(anchorFirst) {
                 if(which === 'start') {
                     element = anchorElement;
-                    offset = selection.anchorOffset
+                    offset = selection.anchorOffset;
                 }
                 else if(which === 'end') {
-                    element = focusElement,
-                    offset = selection.focusOffset
+                    element = focusElement;
+                    offset = selection.focusOffset;
                 }
             } else {
                 if(which === 'start') {
-                    element = focusElement,
-                    offset = selection.focusOffset
+                    element = focusElement;
+                    offset = selection.focusOffset;
                 }
                 else if(which === 'end') {
                     element = anchorElement;
-                    offset = selection.anchorOffset
+                    offset = selection.anchorOffset;
                 }
             }
-        } else {
-            // TODO: Handle order via https://developer.mozilla.org/en-US/docs/Web/API/Node.compareDocumentPosition
-            if(which === 'start') {
-                element = anchorElement;
-                offset = selection.anchorOffset
+            return {element: element, offset: offset};
+        };
+
+        var anchorFirst, placeData, parent;
+
+        if(anchorElement.parent().sameNode(focusElement.parent())) {
+            parent = anchorElement.parent();
+            if(selection.anchorNode === selection.focusNode) {
+                anchorFirst = selection.anchorOffset <= selection.focusOffset;
             } else {
-                element = focusElement;
-                offset = selection.focusOffset
+                anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement);
             }
+            placeData = getPlaceData(anchorFirst);
+        } else {
+            /*jshint bitwise: false*/
+            anchorFirst = selection.anchorNode.compareDocumentPosition(selection.focusNode) & Node.DOCUMENT_POSITION_FOLLOWING;
+            placeData = getPlaceData(anchorFirst);
         }
 
-        var nodeLen = (element.sameNode(focusElement) ? selection.focusNode : selection.anchorNode).length;
+        var nodeLen = (placeData.element.sameNode(focusElement) ? selection.focusNode : selection.anchorNode).length;
         return {
-            element: element,
-            offset: offset,
-            offsetAtBeginning: offset === 0,
-            offsetAtEnd: nodeLen === offset
-        }
+            element: placeData.element,
+            offset: placeData.offset,
+            offsetAtBeginning: placeData.offset === 0 || focusElement.getText() === '',
+            offsetAtEnd: nodeLen === placeData.offset || focusElement.getText() === ''
+        };
     }
-})
+});
 
 return {
     fromXMLDocument: function(wlxmlDocument, publisher) {