X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/a91d838aca2cb6b1330454a6e92616a73a2e1255..9db0e3facfdcb376b589ea922215bbdb1a3d1787:/modules/documentCanvas/canvas/canvas.js diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js index d883835..88a8839 100644 --- a/modules/documentCanvas/canvas/canvas.js +++ b/modules/documentCanvas/canvas/canvas.js @@ -6,8 +6,9 @@ define([ 'use strict'; -var Canvas = function(wlxml) { +var Canvas = function(wlxml, publisher) { this.loadWlxml(wlxml); + this.publisher = publisher ? publisher : function() {}; }; $.extend(Canvas.prototype, { @@ -15,25 +16,23 @@ $.extend(Canvas.prototype, { loadWlxml: function(wlxml) { var d = wlxml ? $($.trim(wlxml)) : null; if(d) { - var wrapper = $('
'); - wrapper.append(d); + this.wrapper = $('
').addClass('canvas-wrapper').attr('contenteditable', true); + this.wrapper.append(d); - wrapper.find('*').replaceWith(function() { + this.wrapper.find('*').replaceWith(function() { var currentTag = $(this); if(currentTag.attr('wlxml-tag')) return; - var toret = $('
').attr('wlxml-tag', currentTag.prop('tagName').toLowerCase()); - //toret.attr('id', 'xxxxxxxx-xxxx-xxxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random()*16|0,v=c=='x'?r:r&0x3|0x8;return v.toString(16);})); - for(var i = 0; i < this.attributes.length; i++) { - var attr = this.attributes.item(i); - var value = attr.name === 'class' ? attr.value.replace(/\./g, '-') : attr.value; - toret.attr('wlxml-' + attr.name, value); - } - toret.append(currentTag.contents()); - return toret; + var element = documentElement.DocumentNodeElement.createDOM({ + tag: currentTag.prop('tagName').toLowerCase(), + klass: currentTag.attr('class') + }); + + element.append(currentTag.contents()); + return element; }); - wrapper.find(':not(iframe)').addBack().contents() + this.wrapper.find(':not(iframe)').addBack().contents() .filter(function() {return this.nodeType === Node.TEXT_NODE}) .each(function() { @@ -57,22 +56,64 @@ $.extend(Canvas.prototype, { this.data = $.trim(this.data); if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1) this.data = ' '; - if(this.data.length === 0) + if(this.data.length === 0) { $(this).remove(); + return true; // continue + } } + + var element = documentElement.DocumentTextElement.create({text: this.data}); + $(this).replaceWith(element.dom()); }); - this.d = wrapper.children(0); - this.d.unwrap(); + 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: '\u200B'}, this)); + canvas.setCurrentElement(goto); + } + } + } + }); + + this.wrapper.on('keyup', function(e) { + if(e.which >= 37 && e.which <= 40) + canvas.setCurrentElement(canvas.getCursor().getPosition().element, {caretTo: false}) + }); + + this.wrapper.on('click', '[wlxml-tag], [wlxml-text]', function(e) { + e.stopPropagation(); + canvas.setCurrentElement(canvas.getDocumentElement(e.target), {caretTo: false}); + }); + } else { this.d = null; } }, + view: function() { + return this.wrapper; + }, + doc: function() { if(this.d === null) return null; - return documentElement.wrap(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')}; + return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')}; }, wrapText: function(params) { @@ -115,7 +156,115 @@ $.extend(Canvas.prototype, { wrapperElement.after({text: suffixOutside}); return wrapperElement; }, - list: {} + getDocumentElement: function(from) { + if(from instanceof HTMLElement || from instanceof Text) { + return documentElement.DocumentElement.fromHTMLElement(from, this); + } + }, + getCursor: function() { + return new Cursor(this); + }, + + 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() { + return this.getDocumentElement(this.wrapper.find('.current-node-element')[0]); + }, + + getCurrentTextElement: function() { + return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]); + }, + + + + setCurrentElement: function(element, params) { + params = _.extend({caretTo: 'end'}, params); + var findFirstDirectTextChild = function(e, nodeToLand) { + var byBrowser = this.getCursor().getPosition().element; + 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; + }.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'); + } else { + this.wrapper.find('.current-node-element').removeClass('current-node-element') + element.dom().addClass('current-node-element'); + this.publisher('currentElementChanged', element); + } + }.bind(this); + + + var isTextElement = element instanceof documentElement.DocumentTextElement, + nodeElementToLand = isTextElement ? element.parent() : element, + textElementToLand = isTextElement ? element : findFirstDirectTextChild(element, nodeElementToLand), + currentTextElement = this.getCurrentTextElement(), + currentNodeElement = this.getCurrentNodeElement(); + + 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)) + this._moveCaretToTextElement(textElementToLand, params.caretTo); // as method on element? + if(!(textElementToLand.sameNode(currentTextElement))) + this.publisher('currentTextElementSet', textElementToLand); + } else { + document.getSelection().removeAllRanges(); + } + + if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) { + _markAsCurrent(nodeElementToLand); + + this.publisher('currentNodeElementSet', nodeElementToLand); + } + }, + + _moveCaretToTextElement: function(element, where) { + var range = document.createRange(), + node = element.dom().contents()[0]; + + if(typeof where !== 'number') { + range.selectNodeContents(node); + } else { + range.setStart(node, where); + } + + var collapseArg = true; + if(where === 'end') + collapseArg = false; + 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. + }, + + setCursorPosition: function(position) { + if(position.element) + this._moveCaretToTextElement(position.element, position.offset); + } }); $.extend(Canvas.prototype.list, { @@ -135,7 +284,8 @@ $.extend(Canvas.prototype.list, { var place = 'before'; var canvas = this; - parent.children().forEach(function(element) { + parent.children().some(function(element) { + var _e = element; if(element.sameNode(params.element1)) place = 'inside'; if(place === 'inside') { @@ -147,15 +297,15 @@ $.extend(Canvas.prototype.list, { element.setWlxmlClass('item'); elementsToWrap.push(element); } - if(element.sameNode(params.element2)) - return false; + if(_e.sameNode(params.element2)) + return true; }); var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')}); var toret; if(parent.is('list')) { - listElement.wrap({tag: 'div', klass: 'item'}); + listElement.wrapWithNodeElement({tag: 'div', klass: 'item'}); toret = listElement.parent(); } else { toret = listElement; @@ -169,50 +319,177 @@ $.extend(Canvas.prototype.list, { }); }, 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', i; - for(i = Math.min(idx1,idx2); i <= Math.max(idx1, idx2); i++) { - extractedItems.push(items[i]); - items[i].detach(); - } - for(i = i; i < items.length; i++) { - succeedingItems.push(items[i]); - items[i].detach(); + if(idx1 > idx2) { + var tmp = idx1; idx1 = idx2; idx2 = tmp; } - var last = list; - extractedItems.forEach(function(item) { - item.setWlxmlClass(null); // - last.after(item); - last = item; + items.forEach(function(item, idx) { + if(idx < idx1) + precedingItems.push(item); + else if(idx >= idx1 && idx <= idx2) { + extractedItems.push(item); + } + else { + succeedingItems.push(item); + } }); - if(list.children().length === 0) - list.detach(); - - if(succeedingItems.length > 0) { - var secondList = documentElement.DocumentNodeElement.create({tag: 'div', klass:'list-items'}, this); - last.after(secondList); - + 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 = documentElement.DocumentNodeElement.create({tag: 'div', klass:'list-items'}, this), + 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'); } }); + +var Cursor = function(canvas) { + this.canvas = canvas; +}; + +$.extend(Cursor.prototype, { + isSelecting: function() { + var selection = window.getSelection(); + return !selection.isCollapsed; + }, + isSelectingWithinElement: function() { + return this.isSelecting() && this.getSelectionStart().element.sameNode(this.getSelectionEnd().element); + }, + isSelectingSiblings: function() { + return this.isSelecting() && this.getSelectionStart().element.parent().sameNode(this.getSelectionEnd().element.parent()); + }, + getPosition: function() { + return this.getSelectionAnchor(); + }, + getSelectionStart: function() { + return this.getSelectionBoundry('start'); + }, + getSelectionEnd: function() { + return this.getSelectionBoundry('end'); + }, + getSelectionAnchor: function() { + return this.getSelectionBoundry('anchor'); + }, + getSelectionBoundry: function(which) { + var selection = window.getSelection(), + anchorElement = this.canvas.getDocumentElement(selection.anchorNode), + focusElement = this.canvas.getDocumentElement(selection.focusNode); + + if(anchorElement instanceof documentElement.DocumentNodeElement || focusElement instanceof documentElement.DocumentNodeElement) + return {}; + + if(which === 'anchor') { + return { + element: anchorElement, + offset: selection.anchorOffset, + offsetAtBeginning: selection.anchorOffset === 0, + offsetAtEnd: anchorElement && anchorElement.getText().length === selection.anchorOffset + }; + } + + var element, + offset; + + if(anchorElement.parent().sameNode(focusElement.parent())) { + var parent = anchorElement.parent(), + anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement); + if(anchorFirst) { + if(which === 'start') { + element = anchorElement; + offset = selection.anchorOffset; + } + else if(which === 'end') { + element = focusElement, + offset = selection.focusOffset; + } + } else { + if(which === 'start') { + element = focusElement, + offset = selection.focusOffset + } + else if(which === 'end') { + element = anchorElement; + offset = selection.anchorOffset; + } + } + } else { + // TODO: Handle order + if(which === 'start') { + element = anchorElement; + offset = selection.anchorOffset + } else { + element = focusElement; + offset = selection.focusOffset + } + } + + return { + element: element, + offset: offset, + offsetAtBeginning: offset === 0, + offsetAtEnd: element.getText().length === offset + } + } +}) + return { - fromXML: function(xml) { - return new Canvas(xml); + fromXML: function(xml, publisher) { + return new Canvas(xml, publisher); } };