'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';
-var Canvas = function(wlxml, publisher) {
+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.loadWlxml(wlxml);
+ 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, {
- loadWlxml: function(wlxml) {
- var d = wlxml ? $($.trim(wlxml)) : null;
- if(d) {
- this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
- this.wrapper.append(d);
- var canvas = this;
-
- this.wrapper.find('*').replaceWith(function() {
- var currentTag = $(this);
- if(currentTag.attr('wlxml-tag'))
- return;
-
- var meta = {}, others = {};
- 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;
- else if(attr.name !== 'class')
- others[attr.name] = attr.value;
- }
+ loadWlxmlDocument: function(wlxmlDocument) {
+ if(!wlxmlDocument) {
+ return false;
+ }
- var element = canvas.createNodeElement({
- tag: currentTag.prop('tagName').toLowerCase(),
- klass: currentTag.attr('class'),
- meta: meta,
- others: others,
- rawChildren: currentTag.contents(),
- prepopulateOnEmpty: true
- });
-
- ['orig-before', 'orig-after', 'orig-begin', 'orig-end'].forEach(function(attr) {
- element.data(attr, '');
- });
- return element.dom();
- });
+ this.wlxmlListener.listenTo(wlxmlDocument);
+ this.wlxmlDocument = wlxmlDocument;
+ this.reloadRoot();
+ this.setupEventHandling();
+ },
- var FIRST_CONTENT_INDEX = 0;
+ 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);
- // @@ TODO - refactor!
- var getNode = function(element) {
- return element.children('[document-element-content]');
- }
+ this.wrapper.empty();
+ this.wrapper.append(canvasDOM);
+ this.d = this.wrapper.children(0);
+ },
- this.wrapper.find(':not(iframe)').addBack().contents()
- .filter(function() {return this.nodeType === Node.TEXT_NODE})
- .each(function() {
-
- // TODO: use DocumentElement API
-
- var el = $(this),
- text = {original: el.text(), trimmed: $.trim(el.text())},
- elParent = el.parent(),
- hasSpanParent = elParent.attr('wlxml-tag') === 'span',
- hasSpanBefore = el.prev().length > 0 && getNode($(el.prev()[0])).attr('wlxml-tag') === 'span',
- hasSpanAfter = el.next().length > 0 && getNode($(el.next()[0])).attr('wlxml-tag') === 'span';
-
- if(el.parent().hasClass('canvas-widget') || elParent.attr('document-text-element') !== undefined)
- return true; // continue
-
- var addInfo = function(toAdd, where) {
- var parentContents = elParent.contents(),
- idx = parentContents.index(el[0]),
- prev = idx > FIRST_CONTENT_INDEX ? parentContents[idx-1] : null,
- next = idx < parentContents.length - 1 ? parentContents[idx+1] : null,
- target, key;
-
- if(where === 'above') {
- target = prev ? $(prev) : elParent.parent();
- key = prev ? 'orig-after' : 'orig-begin';
- } else if(where === 'below') {
- target = next ? $(next) : elParent.parent();
- key = next ? 'orig-before' : 'orig-end';
- } else { throw new Object;}
-
- target.data(key, toAdd);
- }
+ generateCanvasDOM: function(wlxmlNode) {
+ var element = documentElement.DocumentNodeElement.create(wlxmlNode, this);
+ return element.dom();
+ },
- text.transformed = text.trimmed;
-
- if(hasSpanParent || hasSpanBefore || hasSpanAfter) {
- var startSpace = /\s/g.test(text.original.substr(0,1)),
- endSpace = /\s/g.test(text.original.substr(-1)) && text.original.length > 1;
- text.transformed = (startSpace && (hasSpanParent || hasSpanBefore) ? ' ' : '')
- + text.trimmed
- + (endSpace && (hasSpanParent || hasSpanAfter) ? ' ' : '');
- } else {
- if(text.trimmed.length === 0 && text.original.length > 0 && elParent.contents().length === 1)
- text.transformed = ' ';
- }
+ setupEventHandling: function() {
+ var canvas = this;
+ this.wrapper.on('keyup keydown keypress', function(e) {
+ keyboard.handleKey(e, this);
+ }.bind(this));
- if(!text.transformed) {
- addInfo(text.original, 'below');
- el.remove();
- return true; // continue
- }
+ this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
+ e.stopPropagation();
+ canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
+ });
- if(text.transformed !== text.original) {
- if(!text.trimmed) {
- addInfo(text.original, 'below');
- } else {
- var startingMatch = text.original.match(/^\s+/g),
- endingMatch = text.original.match(/\s+$/g),
- startingWhiteSpace = startingMatch ? startingMatch[0] : null,
- endingWhiteSpace = endingMatch ? endingMatch[0] : null;
-
- if(endingWhiteSpace) {
- if(text.transformed[text.transformed.length - 1] === ' ' && endingWhiteSpace[0] === ' ')
- endingWhiteSpace = endingWhiteSpace.substr(1);
- addInfo(endingWhiteSpace, 'below');
- }
-
- if(startingWhiteSpace) {
- if(text.transformed[0] === ' ' && startingWhiteSpace[startingWhiteSpace.length-1] === ' ')
- startingWhiteSpace = startingWhiteSpace.substr(0, startingWhiteSpace.length -1);
- addInfo(startingWhiteSpace, 'above');
- }
- }
- }
- var element = documentElement.DocumentTextElement.create({text: text.transformed});
- el.replaceWith(element.dom());
- });
-
- this.d = this.wrapper.children(0);
- this.wrapper.on('keyup keydown keypress', function(e) {
- keyboard.handleKey(e, this);
- }.bind(this));
+ var observer = new MutationObserver(function(mutations) {
+ mutations.forEach(function(mutation) {
+ if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
+ observer.disconnect();
+ 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.wrapper[0], config);
+ canvas.publisher('contentChanged');
- this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
- e.stopPropagation();
- canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
- });
+ var textElement = canvas.getDocumentElement(mutation.target),
+ toSet = mutation.target.data !== utils.unicode.ZWS ? mutation.target.data : '';
- var observer = new MutationObserver(function(mutations) {
- mutations.forEach(function(mutation) {
- if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
- observer.disconnect();
- 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);
- canvas.publisher('contentChanged');
+ //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);
-
-
- 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);
- if(!el)
- return;
- e.stopPropagation();
- if(el instanceof documentElement.DocumentTextElement)
- el = el.parent();
- el.toggleLabel(false);
- });
-
- this.eventBus.on('elementToggled', function(toggle, element) {
- if(!toggle) {
- canvas.setCurrentElement(element.getPreviousTextElement());
}
- })
+ });
+ });
+ var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
+ 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)
+ 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);
+ if(!el)
+ return;
+ e.stopPropagation();
+ if(el instanceof documentElement.DocumentTextElement)
+ el = el.parent();
+ el.toggleLabel(false);
+ });
- } else {
- this.d = null;
- }
+ this.eventBus.on('elementToggled', function(toggle, element) {
+ if(!toggle) {
+ canvas.setCurrentElement(element.getPreviousTextElement());
+ }
+ });
},
view: function() {
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;
- },
-
- 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) {
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(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);
+ 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'));
}
},
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();
}
});
})
return {
- fromXML: function(xml, publisher) {
- return new Canvas(xml, publisher);
+ fromXMLDocument: function(wlxmlDocument, publisher) {
+ return new Canvas(wlxmlDocument, publisher);
}
};
fnp / fnpeditor.git / blobdiff