X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/d2daf4834ec70add492c9d4649620fc5ea7585d0..2a0f7de048f49f0087caae5962f124dbbb06d69e:/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 60782c2..29edbe5 100644 --- a/src/editor/modules/documentCanvas/canvas/canvas.js +++ b/src/editor/modules/documentCanvas/canvas/canvas.js @@ -2,15 +2,22 @@ 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($, _, Backbone, documentElement, keyboard, utils, wlxmlListener) { +'modules/documentCanvas/canvas/wlxmlListener', +'modules/documentCanvas/canvas/elementsRegister', +'modules/documentCanvas/canvas/genericElement', +'modules/documentCanvas/canvas/nullElement', +'modules/documentCanvas/canvas/gutter', +'libs/text!./canvas.html' +], function($, _, Backbone, logging, documentElement, keyboard, utils, wlxmlListener, ElementsRegister, genericElement, nullElement, gutter, canvasTemplate) { '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 +47,55 @@ $.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, metadata) { + this.metadata = metadata || {}; + this.elementsRegister = new ElementsRegister(documentElement.DocumentNodeElement, nullElement); + + 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.dom = $(canvasTemplate); + this.rootWrapper = this.dom.find('.root-wrapper'); + + + this.gutter = gutter.create(); + this.gutterView = new gutter.GutterView(this.gutter); + this.dom.find('.view-row').append(this.gutterView.dom); + this.wlxmlListener = wlxmlListener.create(this); this.loadWlxmlDocument(wlxmlDocument); this.setupEventHandling(); - this.publisher = publisher ? publisher : function() {}; this.textHandler = new TextHandler(this); }; -$.extend(Canvas.prototype, { +$.extend(Canvas.prototype, Backbone.Events, { + + getElementOffset: function(element) { + return element.dom.offset().top - this.dom.offset().top; + }, loadWlxmlDocument: function(wlxmlDocument) { if(!wlxmlDocument) { @@ -69,32 +107,73 @@ $.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() { + if(this.rootElement) { + this.rootElement.detach(); + } + this.rootElement = this.createElement(this.wlxmlDocument.root); + this.rootWrapper.append(this.rootElement.dom); }, setupEventHandling: function() { var canvas = this; - this.wrapper.on('keyup keydown keypress', function(e) { - keyboard.handleKey(e, this); - }.bind(this)); - this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) { + this.rootWrapper.on('keyup keydown keypress', function(e) { + keyboard.handleKey(e, canvas); + }); + + this.rootWrapper.on('mouseup', function() { + canvas.triggerSelectionChanged(); + }); + + var mouseDown; + this.rootWrapper.on('mousedown', '[document-node-element], [document-text-element]', function(e) { + mouseDown = e.target; + }); + + this.rootWrapper.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) { + this.rootWrapper.on('paste', function(e) { e.preventDefault(); var clipboardData = e.originalEvent.clipboardData; @@ -102,7 +181,7 @@ $.extend(Canvas.prototype, { return; // TODO: alert } - var text = clipboardData.getData('text/plain'), + var text = clipboardData.getData('text/plain').replace(/\r?\n|\r/g, ' '), cursor = canvas.getCursor(), element = cursor.getPosition().element, lhs, rhs; @@ -121,7 +200,7 @@ $.extend(Canvas.prototype, { /* globals MutationObserver */ var observer = new MutationObserver(function(mutations) { mutations.forEach(function(mutation) { - if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) { + if(canvas.dom[0].contains(mutation.target) && documentElement.DocumentTextElement.isContentContainer(mutation.target)) { observer.disconnect(); if(mutation.target.data === '') { mutation.target.data = utils.unicode.ZWS; @@ -130,37 +209,29 @@ $.extend(Canvas.prototype, { 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'); + observer.observe(canvas.dom[0], config); 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); } } }); }); var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true}; - observer.observe(this.wrapper[0], config); + observer.observe(this.rootWrapper[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); + var hoverHandler = function(e) { + var el = canvas.getDocumentElement(e.currentTarget), + expose = { + mouseover: true, + mouseout: false + }; if(!el) { return; } @@ -168,60 +239,108 @@ $.extend(Canvas.prototype, { if(el instanceof documentElement.DocumentTextElement) { el = el.parent(); } - el.toggleLabel(false); - }); + el.updateState({exposed:expose[e.type]}); + }; + + this.rootWrapper.on('mouseover', '[document-node-element], [document-text-element]', hoverHandler); + this.rootWrapper.on('mouseout', '[document-node-element], [document-text-element]', hoverHandler); this.eventBus.on('elementToggled', function(toggle, element) { if(!toggle) { - canvas.setCurrentElement(element.getPreviousTextElement()); + canvas.setCurrentElement(canvas.getPreviousTextElement(element)); } }); }, view: function() { - return this.wrapper; + return this.dom; }, 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) { - var element = utils.findCanvasElement(node); - element.toggleHighlight(toggle); - }, - - createNodeElement: function(params) { - return documentElement.DocumentNodeElement.create(params, this); + var element = utils.getElementForNode(node); + element.updateState({exposed: toggle}); }, - 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]); + return this.currentNodeElement; }, getCurrentTextElement: function() { - return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]); + var htmlElement = this.rootWrapper.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 && element.dom && element.dom.parents().index(this.rootWrapper) !== -1; + }, + + triggerSelectionChanged: function() { + this.trigger('selectionChanged', this.getSelection()); + var s = this.getSelection(), + f = s.toDocumentFragment(); + if(f && f instanceof f.RangeFragment) { + if(this.currentNodeElement) { + this.currentNodeElement.updateState({active: false}); + this.currentNodeElement = null; + } + } + }, + + getSelection: function() { + return new Selection(this); + }, + select: function(fragment) { + if(fragment instanceof this.wlxmlDocument.RangeFragment) { + this.setCurrentElement(fragment.endNode, {caretTo: fragment.endOffset}); + } else if(fragment instanceof this.wlxmlDocument.NodeFragment) { + var params = { + caretTo: fragment instanceof this.wlxmlDocument.CaretFragment ? fragment.offset : 'start' + }; + this.setCurrentElement(fragment.node, params); + } else { + logger.debug('Fragment not supported'); + } + }, setCurrentElement: function(element, params) { + if(!element) { + logger.debug('Invalid element passed to setCurrentElement: ' + element); + return; + } + if(!(element instanceof documentElement.DocumentElement)) { - element = utils.findCanvasElement(element); + element = utils.getElementForNode(element); + } + + if(!element || !this.contains(element)) { + logger.warning('Cannot set current element: element doesn\'t exist on canvas'); + return; } params = _.extend({caretTo: 'end'}, params); @@ -230,22 +349,18 @@ $.extend(Canvas.prototype, { 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; + return _.isFunction(e.getVerticallyFirstTextElement) ? e.getVerticallyFirstTextElement({considerChildren: false}) : 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'); + this.rootWrapper.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._container().addClass('current-node-element'); - this.publisher('currentElementChanged', element); + if(this.currentNodeElement) { + this.currentNodeElement.updateState({active: false}); + } + element.updateState({active: true}); + this.currentNodeElement = element; } }.bind(this); @@ -257,7 +372,7 @@ $.extend(Canvas.prototype, { currentNodeElement = this.getCurrentNodeElement(); if(currentTextElement && !(currentTextElement.sameNode(textElementToLand))) { - this.wrapper.find('.current-text-element').removeClass('current-text-element'); + this.rootWrapper.find('.current-text-element').removeClass('current-text-element'); } if(textElementToLand) { @@ -265,41 +380,38 @@ $.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) { var range = document.createRange(), - node = element.dom().contents()[0]; + node = element.dom.contents()[0]; if(typeof where !== 'number') { range.selectNodeContents(node); } else { - range.setStart(node, where); + range.setStart(node, Math.min(node.data.length, where)); } - var collapseArg = true; - if(where === 'end') { - collapseArg = false; + if(where !== 'whole') { + var collapseArg = true; + if(where === 'end') { + collapseArg = false; + } + range.collapse(collapseArg); } - 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. + this.rootWrapper.focus(); // FF requires this for caret to be put where range colllapses, Chrome doesn't. }, setCursorPosition: function(position) { @@ -310,11 +422,90 @@ $.extend(Canvas.prototype, { }); +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 || !focusNode) { + return; + } + 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; @@ -357,16 +548,16 @@ $.extend(Cursor.prototype, { 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() === '', }; } @@ -401,7 +592,7 @@ $.extend(Cursor.prototype, { if(selection.anchorNode === selection.focusNode) { anchorFirst = selection.anchorOffset <= selection.focusOffset; } else { - anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement); + anchorFirst = (parent.getFirst(anchorElement, focusElement) === anchorElement); } placeData = getPlaceData(anchorFirst); } else { @@ -414,15 +605,15 @@ $.extend(Cursor.prototype, { return { element: placeData.element, offset: placeData.offset, - offsetAtBeginning: placeData.offset === 0, - offsetAtEnd: nodeLen === placeData.offset + offsetAtBeginning: placeData.offset === 0 || focusElement.getText() === '', + offsetAtEnd: nodeLen === placeData.offset || focusElement.getText() === '' }; } }); return { - fromXMLDocument: function(wlxmlDocument, publisher) { - return new Canvas(wlxmlDocument, publisher); + fromXMLDocument: function(wlxmlDocument, elements, metadata) { + return new Canvas(wlxmlDocument, elements, metadata); } };