'use strict';
+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);
+ }
+ },
+ _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, {
return false;
}
- var canvasDOM = this.generateCanvasDOM(wlxmlDocument.root);
+ 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);
this.wrapper.empty();
this.wrapper.append(canvasDOM);
this.d = this.wrapper.children(0);
- this.setupEventHandling();
-
- this.wlxmlListener.listenTo(wlxmlDocument);
- this.wlxmlDocument = wlxmlDocument;
},
generateCanvasDOM: function(wlxmlNode) {
canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
});
+
+
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
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);
- textElement.data('wlxmlNode').setText(mutation.target.data);
+ 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) {
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;
- },
-
- 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;
- },
-
- 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]};
- },
-
getDocumentElement: function(from) {
if(from instanceof HTMLElement || from instanceof Text) {
return documentElement.DocumentElement.fromHTMLElement(from, this);
setCursorPosition: function(position) {
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();
}
});
fnp / fnpeditor.git / blobdiff