X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/432da106a4167b35113341fcb7d275ed53671480..804d77fa4cea068e90b6461f1a5f151fe6f67fbc:/src/editor/modules/documentCanvas/canvas/canvas.js diff --git a/src/editor/modules/documentCanvas/canvas/canvas.js b/src/editor/modules/documentCanvas/canvas/canvas.js index 428cedc..a43799c 100644 --- a/src/editor/modules/documentCanvas/canvas/canvas.js +++ b/src/editor/modules/documentCanvas/canvas/canvas.js @@ -2,15 +2,19 @@ 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($, _, Backbone, documentElement, keyboard, utils, wlxmlListener) { +'modules/documentCanvas/canvas/wlxmlListener', +'modules/documentCanvas/canvas/elementsRegister', +'modules/documentCanvas/canvas/genericElement', +], function($, _, Backbone, logging, documentElement, keyboard, utils, wlxmlListener, ElementsRegister, genericElement) { 'use strict'; -/* global document:false, window:false, Node:false */ +/* global document:false, window:false, Node:false, gettext */ +var logger = logging.getLogger('canvas'); var TextHandler = function(canvas) {this.canvas = canvas; this.buffer = null;}; $.extend(TextHandler.prototype, { @@ -40,24 +44,42 @@ $.extend(TextHandler.prototype, { }, setText: function(text, node) { //this.canvas.wlxmlDocument.transform('setText', {node:node, text: text}); - node.setText(text); + node.document.transaction(function() { + node.setText(text); + }, { + metadata:{ + description: gettext('Changing text') + } + }); } }); -var Canvas = function(wlxmlDocument, publisher) { +var Canvas = function(wlxmlDocument, elements) { + this.elementsRegister = new ElementsRegister(documentElement.DocumentNodeElement, genericElement); + + elements = [ + {tag: 'section', klass: null, prototype: genericElement}, + {tag: 'div', klass: null, prototype: genericElement}, + {tag: 'header', klass: null, prototype: genericElement}, + {tag: 'span', klass: null, prototype: genericElement}, + {tag: 'aside', klass: null, prototype: genericElement} + ].concat(elements || []); + + (elements).forEach(function(elementDesc) { + this.elementsRegister.register(elementDesc); + }.bind(this)); this.eventBus = _.extend({}, Backbone.Events); this.wrapper = $('
').addClass('canvas-wrapper').attr('contenteditable', true); this.wlxmlListener = wlxmlListener.create(this); this.loadWlxmlDocument(wlxmlDocument); this.setupEventHandling(); - this.publisher = publisher ? publisher : function() {}; this.textHandler = new TextHandler(this); }; -$.extend(Canvas.prototype, { +$.extend(Canvas.prototype, Backbone.Events, { loadWlxmlDocument: function(wlxmlDocument) { if(!wlxmlDocument) { @@ -69,25 +91,57 @@ $.extend(Canvas.prototype, { this.reloadRoot(); }, - 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; + if(wlxmlNode.nodeType === Node.TEXT_NODE) { + Factory = documentElement.DocumentTextElement; + } else { + Factory = this.elementsRegister.getElement({tag: wlxmlNode.getTagName(), klass: wlxmlNode.getClass()}); + } + 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() { var canvas = this; + this.wrapper.on('keyup keydown keypress', function(e) { - keyboard.handleKey(e, this); - }.bind(this)); + keyboard.handleKey(e, canvas); + }); + + this.wrapper.on('mouseup', function() { + canvas.triggerSelectionChanged(); + }); + + 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(); @@ -95,7 +149,9 @@ $.extend(Canvas.prototype, { e.preventDefault(); canvas._moveCaretToTextElement(canvas.getDocumentElement(e.currentTarget), 'whole'); } else { - canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false}); + if(mouseDown === e.target) { + canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false}); + } } }); @@ -136,15 +192,14 @@ $.extend(Canvas.prototype, { 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); } } }); @@ -178,7 +233,7 @@ $.extend(Canvas.prototype, { this.eventBus.on('elementToggled', function(toggle, element) { if(!toggle) { - canvas.setCurrentElement(element.getPreviousTextElement()); + canvas.setCurrentElement(canvas.getPreviousTextElement(element)); } }); }, @@ -188,10 +243,7 @@ $.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) { @@ -199,36 +251,66 @@ $.extend(Canvas.prototype, { element.toggleHighlight(toggle); }, - createNodeElement: function(params) { - return documentElement.DocumentNodeElement.create(params, this); - }, - - getDocumentElement: function(from) { - /* globals HTMLElement, Text */ - 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); + } + }, + + getPreviousTextElement: function(relativeToElement, includeInvisible) { + return this.getNearestTextElement('above', relativeToElement, includeInvisible); }, + getNextTextElement: function(relativeToElement, includeInvisible) { + return this.getNearestTextElement('below', relativeToElement, includeInvisible); + }, + getNearestTextElement: function(direction, relativeToElement, includeInvisible) { + includeInvisible = includeInvisible !== undefined ? includeInvisible : false; + var selector = '[document-text-element]' + (includeInvisible ? '' : ':visible'); + return this.getDocumentElement(utils.nearestInDocumentOrder(selector, direction, relativeToElement.dom()[0])); + }, + + contains: function(element) { + return element.dom().parents().index(this.wrapper) !== -1; + }, + + triggerSelectionChanged: function() { + this.trigger('selectionChanged', this.getSelection()); + }, + + getSelection: function() { + return new Selection(this); + }, 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; @@ -250,7 +332,6 @@ $.extend(Canvas.prototype, { } else { this.wrapper.find('.current-node-element').removeClass('current-node-element'); element._container().addClass('current-node-element'); - this.publisher('currentElementChanged', element); } }.bind(this); @@ -270,18 +351,14 @@ $.extend(Canvas.prototype, { 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')); - } } else { document.getSelection().removeAllRanges(); } if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) { _markAsCurrent(nodeElementToLand); - - this.publisher('currentNodeElementSet', nodeElementToLand.data('wlxmlNode')); } + this.triggerSelectionChanged(); }, _moveCaretToTextElement: function(element, where) { @@ -291,7 +368,7 @@ $.extend(Canvas.prototype, { if(typeof where !== 'number') { range.selectNodeContents(node); } else { - range.setStart(node, where); + range.setStart(node, Math.min(node.data.length, where)); } if(where !== 'whole') { @@ -312,15 +389,103 @@ $.extend(Canvas.prototype, { if(position.element) { this._moveCaretToTextElement(position.element, position.offset); } + }, + + findCanvasElement: function(node) { + return utils.findCanvasElement(node); + }, + + toggleGrid: function() { + this.wrapper.toggleClass('grid-on'); + this.trigger('changed'); + }, + isGridToggled: function() { + return this.wrapper.hasClass('grid-on'); } }); +var isText = function(node) { + return node && node.nodeType === Node.TEXT_NODE && $(node.parentNode).is('[document-text-element]'); +}; + +var Selection = function(canvas) { + this.canvas = canvas; + var nativeSelection = this.nativeSelection = window.getSelection(); + Object.defineProperty(this, 'type', { + get: function() { + if(nativeSelection.focusNode) { + if(nativeSelection.isCollapsed && isText(nativeSelection.focusNode)) { + return 'caret'; + } + if(isText(nativeSelection.focusNode) && isText(nativeSelection.anchorNode)) { + return 'textSelection'; + } + } + if(canvas.getCurrentNodeElement()) { + return 'node'; + } + } + }); +}; + +$.extend(Selection.prototype, { + toDocumentFragment: function() { + var doc = this.canvas.wlxmlDocument, + anchorElement = this.canvas.getDocumentElement(this.nativeSelection.anchorNode), + focusElement = this.canvas.getDocumentElement(this.nativeSelection.focusNode), + anchorNode = anchorElement ? anchorElement.wlxmlNode : null, + focusNode = focusElement ? focusElement.wlxmlNode : null; + if(this.type === 'caret') { + return doc.createFragment(doc.CaretFragment, {node: anchorNode, offset: this.nativeSelection.anchorOffset}); + } + if(this.type === 'textSelection') { + if(anchorNode.isSiblingOf(focusNode)) { + return doc.createFragment(doc.TextRangeFragment, { + node1: anchorNode, + offset1: this.nativeSelection.anchorOffset, + node2: focusNode, + offset2: this.nativeSelection.focusOffset, + }); + } + else { + var siblingParents = doc.getSiblingParents({node1: anchorNode, node2: focusNode}); + return doc.createFragment(doc.RangeFragment, { + node1: siblingParents.node1, + node2: siblingParents.node2 + }); + } + } + if(this.type === 'node') { + return doc.createFragment(doc.NodeFragment, {node: this.canvas.getCurrentNodeElement().wlxmlNode}); + } + }, + sameAs: function(other) { + void(other); + } +}); + var Cursor = function(canvas) { this.canvas = canvas; + this.selection = window.getSelection(); }; $.extend(Cursor.prototype, { + sameAs: function(other) { + var same = true; + if(!other) { + return false; + } + + ['focusNode', 'focusOffset', 'anchorNode', 'anchorOffset'].some(function(prop) { + same = same && this.selection[prop] === other.selection[prop]; + if(!same) { + return true; // break + } + }.bind(this)); + + return same; + }, isSelecting: function() { var selection = window.getSelection(); return !selection.isCollapsed; @@ -427,8 +592,8 @@ $.extend(Cursor.prototype, { }); return { - fromXMLDocument: function(wlxmlDocument, publisher) { - return new Canvas(wlxmlDocument, publisher); + fromXMLDocument: function(wlxmlDocument, elements) { + return new Canvas(wlxmlDocument, elements); } };