X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/6757e2f4fe80bfdc197d4963c464bf2b3a47f66b..4ab522037ab350b3f0257130bc6e4dbc6f183021:/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 e181195..5cfc015 100644 --- a/src/editor/modules/documentCanvas/canvas/canvas.js +++ b/src/editor/modules/documentCanvas/canvas/canvas.js @@ -2,44 +2,47 @@ 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; } }, setText: function(text, node) { //this.canvas.wlxmlDocument.transform('setText', {node:node, text: text}); - node.transform('setText', {text: text}); + node.setText(text); } @@ -51,6 +54,7 @@ var Canvas = function(wlxmlDocument, publisher) { 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); }; @@ -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) { @@ -164,46 +221,50 @@ $.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); }, - list: {}, - 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 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); @@ -212,9 +273,8 @@ $.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); @@ -225,15 +285,18 @@ $.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(); } @@ -241,7 +304,7 @@ $.extend(Canvas.prototype, { if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) { _markAsCurrent(nodeElementToLand); - this.publisher('currentNodeElementSet', nodeElementToLand.data('wlxmlNode')); + this.publisher('currentNodeElementSet', nodeElementToLand.wlxmlNode); } }, @@ -255,11 +318,13 @@ $.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(); @@ -268,139 +333,9 @@ $.extend(Canvas.prototype, { }, setCursorPosition: function(position) { - if(position.element) + if(position.element) { this._moveCaretToTextElement(position.element, position.offset); - } -}); - -$.extend(Canvas.prototype.list, { - create: function(params) { - if(!(params.element1.parent().sameNode(params.element2.parent()))) - return false; - - var parent = params.element1.parent(), - canvas = params.element1.canvas; - - if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) { - var tmp = params.element1; - params.element1 = params.element2; - params.element2 = tmp; - } - - var elementsToWrap = []; - - var place = 'before'; - parent.children().some(function(element) { - var _e = element; - if(element.sameNode(params.element1)) - place = 'inside'; - if(place === 'inside') { - if(element instanceof documentElement.DocumentTextElement) { - element = element.wrapWithNodeElement({tag: 'div', klass: 'list.item'}); - if(element.children()[0].sameNode(params.element1)) - params.element1 = element; - } - element.setWlxmlClass('item'); - elementsToWrap.push(element); - } - if(_e.sameNode(params.element2)) - return true; - }); - - var listElement = canvas.createNodeElement({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')}); - var toret; - if(parent.is('list')) { - var item = listElement.wrapWithNodeElement({tag: 'div', klass: 'item'}); - item.exec('toggleBullet', false); - toret = listElement.parent(); - } else { - toret = listElement; - } - - params.element1.before(toret); - - elementsToWrap.forEach(function(element) { - element.detach(); - listElement.append(element); - }); - }, - extractItems: function(params) { - params = _.extend({merge: true}, params); - var list = params.element1.parent(); - if(!list.is('list') || !(list.sameNode(params.element2.parent()))) - return false; - - var idx1 = list.childIndex(params.element1), - idx2 = list.childIndex(params.element2), - precedingItems = [], - extractedItems = [], - succeedingItems = [], - items = list.children(), - listIsNested = list.parent().getWlxmlClass() === 'item', - canvas = params.element1.canvas, - i; - - if(idx1 > idx2) { - var tmp = idx1; idx1 = idx2; idx2 = tmp; - } - - items.forEach(function(item, idx) { - if(idx < idx1) - precedingItems.push(item); - else if(idx >= idx1 && idx <= idx2) { - extractedItems.push(item); - } - else { - succeedingItems.push(item); - } - }); - - var reference = listIsNested ? list.parent() : list; - if(succeedingItems.length === 0) { - var reference_orig = reference; - extractedItems.forEach(function(item) { - reference.after(item); - reference = item; - if(!listIsNested) - item.setWlxmlClass(null); - }); - if(precedingItems.length === 0) - reference_orig.detach(); - } else if(precedingItems.length === 0) { - extractedItems.forEach(function(item) { - reference.before(item); - if(!listIsNested) - item.setWlxmlClass(null); - }); - } else { - extractedItems.forEach(function(item) { - reference.after(item); - if(!listIsNested) - item.setWlxmlClass(null); - reference = item; - }); - var secondList = canvas.createNodeElement({tag: 'div', klass:'list-items'}), - toAdd = secondList; - - if(listIsNested) { - toAdd = secondList.wrapWithNodeElement({tag: 'div', klass:'item'}); - } - succeedingItems.forEach(function(item) { - secondList.append(item); - }); - - reference.after(toAdd); } - if(!params.merge && listIsNested) { - return this.extractItems({element1: extractedItems[0], element2: extractedItems[extractedItems.length-1]}); - } - return true; - }, - areItemsOfTheSameList: function(params) { - var e1 = params.element1, - e2 = params.element2; - return e1.parent().sameNode(e2.parent()) - && e1.parent().is('list'); } }); @@ -417,6 +352,9 @@ $.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()); }, @@ -436,75 +374,81 @@ $.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) {