'use strict';
-var Canvas = function(xml) {
- xml = $.parseXML(xml);
- this.d = xml !== null ? $(xml.childNodes[0]) : null;
- if(this.d) {
- var wrapper = $('<div>');
- wrapper.append(this.d);
- wrapper.find(':not(iframe)').addBack().contents()
- .filter(function() {return this.nodeType === Node.TEXT_NODE})
- .each(function() {
-
- var el = $(this);
-
- // TODO: use DocumentElement API
- var spanParent = el.parent().prop('tagName') === 'span',
- spanBefore = el.prev().length > 0 && $(el.prev()[0]).prop('tagName') === 'span',
- spanAfter = el.next().length > 0 && $(el.next()[0]).prop('tagName') === 'span';
+var Canvas = function(wlxml, publisher) {
+ this.loadWlxml(wlxml);
+ this.publisher = publisher ? publisher : function() {};
+};
+
+$.extend(Canvas.prototype, {
+
+ loadWlxml: function(wlxml) {
+ var d = wlxml ? $($.trim(wlxml)) : null;
+ if(d) {
+ this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
+ this.wrapper.append(d);
+
+ this.wrapper.find('*').replaceWith(function() {
+ var currentTag = $(this);
+ if(currentTag.attr('wlxml-tag'))
+ return;
+
+ var meta = {};
+ for(var i = 0; i < this.attributes.length; i++) {
+ var attr = this.attributes[i];
+ if(attr.name.substr(0, 5) === 'meta-')
+ meta[attr.name.substr(5)] = attr.value;
+ }
+
+ var element = documentElement.DocumentNodeElement.createDOM({
+ tag: currentTag.prop('tagName').toLowerCase(),
+ klass: currentTag.attr('class'),
+ meta: meta
+ });
+
+ element.append(currentTag.contents());
+ return element;
+ });
+
+ this.wrapper.find(':not(iframe)').addBack().contents()
+ .filter(function() {return this.nodeType === Node.TEXT_NODE})
+ .each(function() {
+
+ var el = $(this);
- if(spanParent || spanBefore || spanAfter) {
- var startSpace = /\s/g.test(this.data.substr(0,1));
- var endSpace = /\s/g.test(this.data.substr(-1)) && this.data.length > 1;
- var trimmed = $.trim(this.data);
- this.data = (startSpace && (spanParent || spanBefore) ? ' ' : '')
- + trimmed
- + (endSpace && (spanParent || spanAfter) ? ' ' : '');
-
- } else {
- this.data = $.trim(this.data);
+ // TODO: use DocumentElement API
+ var spanParent = el.parent().attr('wlxml-tag') === 'span',
+ spanBefore = el.prev().length > 0 && $(el.prev()[0]).attr('wlxml-tag') === 'span',
+ spanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
+
+ if(spanParent || spanBefore || spanAfter) {
+ var startSpace = /\s/g.test(this.data.substr(0,1));
+ var endSpace = /\s/g.test(this.data.substr(-1)) && this.data.length > 1;
+ var trimmed = $.trim(this.data);
+ this.data = (startSpace && (spanParent || spanBefore) ? ' ' : '')
+ + trimmed
+ + (endSpace && (spanParent || spanAfter) ? ' ' : '');
+
+ } else {
+ var oldLength = this.data.length;
+ this.data = $.trim(this.data);
+ if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1)
+ this.data = ' ';
+ if(this.data.length === 0) {
+ $(this).remove();
+ return true; // continue
+ }
+ }
+
+ var element = documentElement.DocumentTextElement.create({text: this.data});
+ $(this).replaceWith(element.dom());
+ });
+
+ this.d = this.wrapper.children(0);
+
+ var canvas = this;
+ this.wrapper.on('keydown', function(e) {
+ if(e.which === 13) {
+ e.preventDefault();
+ var cursor = canvas.getCursor();
+ if(!cursor.isSelecting()) {
+ var position = cursor.getPosition(),
+ elements = position.element.split({offset: position.offset}),
+ newEmpty,
+ goto;
+
+ if(position.offsetAtBeginning)
+ newEmpty = elements.first;
+ else if(position.offsetAtEnd)
+ newEmpty = elements.second;
+ if(newEmpty) {
+ goto = newEmpty.append(documentElement.DocumentTextElement.create({text: '\u200B'}, this));
+ canvas.setCurrentElement(goto);
+ }
+ }
}
});
- this.d.unwrap();
- };
-};
-$.extend(Canvas.prototype, {
+ 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) {
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, {
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') {
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;
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',
+ 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 = 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);
}
};
fnp / fnpeditor.git / blobdiff