'libs/backbone',
'modules/documentCanvas/canvas/documentElement',
'modules/documentCanvas/canvas/keyboard',
-'modules/documentCanvas/canvas/utils'
-], function($, _, Backbone, documentElement, keyboard, utils) {
+'modules/documentCanvas/canvas/utils',
+'modules/documentCanvas/canvas/wlxmlListener'
+], function($, _, Backbone, documentElement, keyboard, utils, wlxmlListener) {
'use strict';
+/* global document:false, window:false */
+
+
+var TextHandler = function(canvas) {this.canvas = canvas; this.buffer = null;};
+$.extend(TextHandler.prototype, {
+ handle: function(node, 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);
+ // }
+ },
+ _ping: _.throttle(function(text) {
+ this.buffer = text;
+ this.flush();
+ }, 1000),
+ flush: function() {
+ 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.setText(text);
+
+ }
+
+});
+
var Canvas = function(wlxmlDocument, publisher) {
this.eventBus = _.extend({}, Backbone.Events);
this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
+ this.wlxmlListener = wlxmlListener.create(this);
this.loadWlxmlDocument(wlxmlDocument);
this.publisher = publisher ? publisher : function() {};
+ this.textHandler = new TextHandler(this);
};
$.extend(Canvas.prototype, {
loadWlxmlDocument: function(wlxmlDocument) {
- wlxmlDocument = wlxmlDocument || this.wlxmlDocument;
if(!wlxmlDocument) {
return false;
}
- var canvasDOM = this.generateCanvasDOM(wlxmlDocument.root);
- this.wrapper.empty();
- this.wrapper.append(canvasDOM);
- this.d = this.wrapper.children(0);
+ this.wlxmlListener.listenTo(wlxmlDocument);
+ this.wlxmlDocument = wlxmlDocument;
+ this.reloadRoot();
this.setupEventHandling();
+ },
- var canvas = this;
-
- var findCanvasElement = function(node) {
- if(node.nodeType === Node.ELEMENT_NODE) {
- return node.getData('canvasElement');
- }
- if(node.nodeType === Node.TEXT_NODE) {
- var parent = node.parent(),
- toret;
-
- parent.children().forEach(function(child) {
- if(child.data('wlxmlNode').sameNode(node))
- toret = child;
- });
- if(toret)
- return toret;
- }
- }
-
- if(this.wlxmlDocument !== wlxmlDocument) {
- wlxmlDocument.on('change', function(event) {
- var canvasNode = findCanvasElement(event.meta.node);
- if(event.type === 'nodeAttrChange' && event.meta.attr === 'class') {
- canvasNode.setWlxmlClass(event.meta.newVal);
- }
+ 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);
- });
- }
- this.wlxmlDocument = wlxmlDocument;
+ this.wrapper.empty();
+ this.wrapper.append(canvasDOM);
+ this.d = this.wrapper.children(0);
},
generateCanvasDOM: function(wlxmlNode) {
canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
});
+
+ /* 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.d[0], config);
+ 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);
+ }
}
});
});
var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
- observer.observe(this.d[0], config);
+ observer.observe(this.wrapper[0], config);
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);
});
},
doc: function() {
- if(this.d === null)
+ if(this.d === null) {
return null;
- return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
- },
-
- createNodeElement: function(params) {
- return documentElement.DocumentNodeElement.create(params, this);
- },
-
- wrapText: function(params) {
- params = _.extend({textNodeIdx: 0}, params);
- if(typeof params.textNodeIdx === 'number')
- params.textNodeIdx = [params.textNodeIdx];
-
- var childrenInside = params.inside.children(),
- idx1 = Math.min.apply(Math, params.textNodeIdx),
- idx2 = Math.max.apply(Math, params.textNodeIdx),
- textNode1 = childrenInside[idx1],
- textNode2 = childrenInside[idx2],
- sameNode = textNode1.sameNode(textNode2),
- prefixOutside = textNode1.getText().substr(0, params.offsetStart),
- prefixInside = textNode1.getText().substr(params.offsetStart),
- suffixInside = textNode2.getText().substr(0, params.offsetEnd),
- suffixOutside = textNode2.getText().substr(params.offsetEnd)
- ;
-
- var wrapperElement = this.createNodeElement({tag: params._with.tag, klass: params._with.klass});
- textNode1.after(wrapperElement);
- textNode1.detach();
-
- if(prefixOutside.length > 0)
- wrapperElement.before({text:prefixOutside});
- if(sameNode) {
- var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart);
- wrapperElement.append({text: core});
- } else {
- textNode2.detach();
- if(prefixInside.length > 0)
- wrapperElement.append({text: prefixInside});
- for(var i = idx1 + 1; i < idx2; i++) {
- wrapperElement.append(childrenInside[i]);
- }
- if(suffixInside.length > 0)
- wrapperElement.append({text: suffixInside});
}
- if(suffixOutside.length > 0)
- wrapperElement.after({text: suffixOutside});
- return wrapperElement;
+ return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
},
- wrapElements: function(params) {
- if(!(params.element1.parent().sameNode(params.element2.parent())))
- return;
-
- var parent = params.element1.parent(),
- parentChildren = parent.children(),
- wrapper = this.createNodeElement({
- tag: params._with.tag,
- klass: params._with.klass}),
- idx1 = parent.childIndex(params.element1),
- idx2 = parent.childIndex(params.element2);
-
- if(idx1 > idx2) {
- var tmp = idx1;
- idx1 = idx2;
- idx2 = tmp;
- }
-
- var insertingMethod, insertingTarget;
- if(idx1 === 0) {
- insertingMethod = 'prepend';
- insertingTarget = parent;
- } else {
- insertingMethod = 'after';
- insertingTarget = parentChildren[idx1-1];
- }
-
- for(var i = idx1; i <= idx2; i++) {
- wrapper.append(parentChildren[i].detach());
- }
-
- insertingTarget[insertingMethod](wrapper);
- return wrapper;
+ toggleElementHighlight: function(node, toggle) {
+ var element = utils.findCanvasElement(node);
+ element.toggleHighlight(toggle);
},
- getSiblingParents: function(params) {
- var parents1 = [params.element1].concat(params.element1.parents()).reverse(),
- parents2 = [params.element2].concat(params.element2.parents()).reverse(),
- noSiblingParents = null;
-
- if(parents1.length === 0 || parents2.length === 0 || !(parents1[0].sameNode(parents2[0])))
- return noSiblingParents;
-
- var i;
- for(i = 0; i < Math.min(parents1.length, parents2.length); i++) {
- if(parents1[i].sameNode(parents2[i]))
- continue;
- break;
- }
- return {element1: parents1[i], element2: parents2[i]};
+ 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);
}
return new Cursor(this);
},
- list: {},
-
getCurrentNodeElement: function() {
return this.getDocumentElement(this.wrapper.find('.current-node-element').parent()[0]);
setCurrentElement: function(element, params) {
+ if(!(element instanceof documentElement.DocumentElement)) {
+ element = utils.findCanvasElement(element);
+ }
+
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);
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);
}
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);
+ }
+ 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);
+ this.publisher('currentNodeElementSet', nodeElementToLand.data('wlxmlNode'));
}
},
}
var collapseArg = true;
- if(where === 'end')
+ if(where === 'end') {
collapseArg = false;
+ }
range.collapse(collapseArg);
var selection = document.getSelection();
},
setCursorPosition: function(position) {
- if(position.element)
+ if(position.element) {
this._moveCaretToTextElement(position.element, position.offset);
- },
-
- toXML: function() {
- var parent = $('<div>'),
- parts = this.doc().toXML(0);
- parent.append(parts);
- return parent.html();
- }
-});
-
-$.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');
}
});
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 {
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
+ offset = selection.anchorOffset;
} else {
element = focusElement;
- offset = selection.focusOffset
+ offset = selection.focusOffset;
}
}
offset: offset,
offsetAtBeginning: offset === 0,
offsetAtEnd: nodeLen === offset
- }
+ };
}
-})
+});
return {
fromXMLDocument: function(wlxmlDocument, publisher) {
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