'libs/jquery',
'libs/underscore',
'libs/backbone',
+'fnpjs/logging/logging',
'modules/documentCanvas/canvas/documentElement',
'modules/documentCanvas/canvas/keyboard',
'modules/documentCanvas/canvas/utils',
'modules/documentCanvas/canvas/wlxmlListener'
-], function($, _, Backbone, documentElement, keyboard, utils, wlxmlListener) {
+], function($, _, Backbone, logging, documentElement, keyboard, utils, wlxmlListener) {
'use strict';
-/* global document:false, window:false */
+/* global document:false, window:false, Node:false */
+var logger = logging.getLogger('canvas');
var TextHandler = function(canvas) {this.canvas = canvas; this.buffer = null;};
$.extend(TextHandler.prototype, {
});
-var Canvas = function(wlxmlDocument, publisher) {
+var Canvas = function(wlxmlDocument) {
this.eventBus = _.extend({}, Backbone.Events);
this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
this.wlxmlListener = wlxmlListener.create(this);
this.loadWlxmlDocument(wlxmlDocument);
- this.publisher = publisher ? publisher : function() {};
+ this.setupEventHandling();
this.textHandler = new TextHandler(this);
};
-$.extend(Canvas.prototype, {
+$.extend(Canvas.prototype, Backbone.Events, {
loadWlxmlDocument: function(wlxmlDocument) {
if(!wlxmlDocument) {
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);
+ createElement: function(wlxmlNode) {
+ var Factory = wlxmlNode.nodeType === Node.TEXT_NODE ? documentElement.DocumentTextElement : documentElement.DocumentNodeElement;
+ return new Factory(wlxmlNode, this);
+ },
- this.wrapper.empty();
- this.wrapper.append(canvasDOM);
- this.d = this.wrapper.children(0);
+ getDocumentElement: function(htmlElement) {
+ /* globals HTMLElement, Text */
+ if(!htmlElement || !(htmlElement instanceof HTMLElement || htmlElement instanceof Text)) {
+ return null;
+ }
+ var $element = $(htmlElement);
+ if(htmlElement.nodeType === Node.ELEMENT_NODE && $element.attr('document-node-element') !== undefined) {
+ return $element.data('canvas-element');
+ }
+
+ if(htmlElement.nodeType === Node.TEXT_NODE && $element.parent().attr('document-text-element') !== undefined) {
+ $element = $element.parent();
+ }
+
+ if($element.attr('document-text-element') !== undefined || (htmlElement.nodeType === Node.TEXT_NODE && $element.parent().attr('document-text-element') !== undefined)) {
+ //return DocumentTextElement.fromHTMLElement(htmlElement, canvas);
+ return $element.data('canvas-element');
+ }
},
- generateCanvasDOM: function(wlxmlNode) {
- var element = documentElement.DocumentNodeElement.create(wlxmlNode, this);
- return element.dom();
+ reloadRoot: function() {
+ this.rootElement = this.createElement(this.wlxmlDocument.root);
+ this.wrapper.empty();
+ this.wrapper.append(this.rootElement.dom());
},
setupEventHandling: function() {
var canvas = this;
+
this.wrapper.on('keyup keydown keypress', function(e) {
- keyboard.handleKey(e, this);
- }.bind(this));
+ keyboard.handleKey(e, canvas);
+ });
+
+ this.wrapper.on('mouseup', function() {
+ canvas.triggerSelectionChanged();
+ });
+
+ var mouseDown;
+ this.wrapper.on('mousedown', '[document-node-element], [document-text-element]', function(e) {
+ mouseDown = e.target;
+ });
this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
e.stopPropagation();
- canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
+ if(e.originalEvent.detail === 3) {
+ e.preventDefault();
+ canvas._moveCaretToTextElement(canvas.getDocumentElement(e.currentTarget), 'whole');
+ } else {
+ if(mouseDown === e.target) {
+ canvas.setCurrentElement(canvas.getDocumentElement(e.currentTarget), {caretTo: false});
+ }
+ }
});
+ this.wrapper.on('paste', function(e) {
+ e.preventDefault();
+
+ var clipboardData = e.originalEvent.clipboardData;
+ if(!clipboardData || !clipboardData.getData) {
+ return; // TODO: alert
+ }
+
+ var text = clipboardData.getData('text/plain').replace(/\r?\n|\r/g, ' '),
+ cursor = canvas.getCursor(),
+ element = cursor.getPosition().element,
+ lhs, rhs;
+
+ if(element && cursor.isWithinElement()) {
+ lhs = element.getText().substr(0, cursor.getSelectionStart().offset);
+ rhs = element.getText().substr(cursor.getSelectionEnd().offset);
+ element.setText(lhs+text+rhs);
+ canvas.setCurrentElement(element, {caretTo: lhs.length + text.length});
+ } else {
+ /* jshint noempty:false */
+ // TODO: alert
+ }
+ });
/* globals MutationObserver */
var observer = new MutationObserver(function(mutations) {
canvas._moveCaretToTextElement(canvas.getDocumentElement(mutation.target), 'end');
}
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);
+ if(textElement.wlxmlNode.getText() !== toSet) {
+ canvas.textHandler.handle(textElement.wlxmlNode, toSet);
}
}
});
},
doc: function() {
- if(this.d === null) {
- return null;
- }
- return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
+ return this.rootElement;
},
toggleElementHighlight: function(node, toggle) {
element.toggleHighlight(toggle);
},
- 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);
- }
- },
getCursor: function() {
return new Cursor(this);
},
getCurrentNodeElement: function() {
- return this.getDocumentElement(this.wrapper.find('.current-node-element').parent()[0]);
+ var htmlElement = this.wrapper.find('.current-node-element').parent()[0];
+ if(htmlElement) {
+ return this.getDocumentElement(htmlElement);
+ }
},
getCurrentTextElement: function() {
- return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]);
+ var htmlElement = this.wrapper.find('.current-text-element')[0];
+ if(htmlElement) {
+ return this.getDocumentElement(htmlElement);
+ }
},
+ contains: function(element) {
+ return element.dom().parents().index(this.wrapper) !== -1;
+ },
+ triggerSelectionChanged: function() {
+ this.trigger('selectionChanged', this.getSelection());
+ },
+
+ getSelection: function() {
+ return new Selection(this);
+ },
setCurrentElement: function(element, params) {
+ if(!element) {
+ logger.debug('Invalid element passed to setCurrentElement: ' + element);
+ return;
+ }
+
if(!(element instanceof documentElement.DocumentElement)) {
element = utils.findCanvasElement(element);
}
+ if(!element || !this.contains(element)) {
+ logger.warning('Cannot set current element: element doesn\'t exist on canvas');
+ return;
+ }
+
params = _.extend({caretTo: 'end'}, params);
var findFirstDirectTextChild = function(e, nodeToLand) {
var byBrowser = this.getCursor().getPosition().element;
} else {
this.wrapper.find('.current-node-element').removeClass('current-node-element');
element._container().addClass('current-node-element');
- this.publisher('currentElementChanged', element);
}
}.bind(this);
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.data('wlxmlNode'));
- }
} else {
document.getSelection().removeAllRanges();
}
if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) {
_markAsCurrent(nodeElementToLand);
-
- this.publisher('currentNodeElementSet', nodeElementToLand.data('wlxmlNode'));
}
+ this.triggerSelectionChanged();
},
_moveCaretToTextElement: function(element, where) {
if(typeof where !== 'number') {
range.selectNodeContents(node);
} else {
- range.setStart(node, where);
+ range.setStart(node, Math.min(node.data.length, where));
}
- var collapseArg = true;
- if(where === 'end') {
- collapseArg = false;
+ if(where !== 'whole') {
+ var collapseArg = true;
+ if(where === 'end') {
+ collapseArg = false;
+ }
+ range.collapse(collapseArg);
}
- range.collapse(collapseArg);
-
var selection = document.getSelection();
selection.removeAllRanges();
if(position.element) {
this._moveCaretToTextElement(position.element, position.offset);
}
+ },
+
+ findCanvasElement: function(node) {
+ return utils.findCanvasElement(node);
+ },
+
+ toggleGrid: function() {
+ this.wrapper.toggleClass('grid-on');
+ this.trigger('changed');
+ },
+ isGridToggled: function() {
+ return this.wrapper.hasClass('grid-on');
}
});
+var isText = function(node) {
+ return node && node.nodeType === Node.TEXT_NODE && $(node.parentNode).is('[document-text-element]');
+};
+
+var Selection = function(canvas) {
+ this.canvas = canvas;
+ var nativeSelection = this.nativeSelection = window.getSelection();
+ Object.defineProperty(this, 'type', {
+ get: function() {
+ if(nativeSelection.focusNode) {
+ if(nativeSelection.isCollapsed && isText(nativeSelection.focusNode)) {
+ return 'caret';
+ }
+ if(isText(nativeSelection.focusNode) && isText(nativeSelection.anchorNode)) {
+ return 'textSelection';
+ }
+ }
+ if(canvas.getCurrentNodeElement()) {
+ return 'node';
+ }
+ }
+ });
+};
+
+$.extend(Selection.prototype, {
+ toDocumentFragment: function() {
+ var doc = this.canvas.wlxmlDocument,
+ anchorElement = this.canvas.getDocumentElement(this.nativeSelection.anchorNode),
+ focusElement = this.canvas.getDocumentElement(this.nativeSelection.focusNode),
+ anchorNode = anchorElement ? anchorElement.wlxmlNode : null,
+ focusNode = focusElement ? focusElement.wlxmlNode : null;
+ if(this.type === 'caret') {
+ return doc.createFragment(doc.CaretFragment, {node: anchorNode, offset: this.nativeSelection.anchorOffset});
+ }
+ if(this.type === 'textSelection') {
+ if(anchorNode.isSiblingOf(focusNode)) {
+ return doc.createFragment(doc.TextRangeFragment, {
+ node1: anchorNode,
+ offset1: this.nativeSelection.anchorOffset,
+ node2: focusNode,
+ offset2: this.nativeSelection.focusOffset,
+ });
+ }
+ else {
+ var siblingParents = doc.getSiblingParents({node1: anchorNode, node2: focusNode});
+ return doc.createFragment(doc.RangeFragment, {
+ node1: siblingParents.node1,
+ node2: siblingParents.node2
+ });
+ }
+ }
+ if(this.type === 'node') {
+ return doc.createFragment(doc.NodeFragment, {node: this.canvas.getCurrentNodeElement().wlxmlNode});
+ }
+ },
+ sameAs: function(other) {
+ void(other);
+ }
+});
+
var Cursor = function(canvas) {
this.canvas = canvas;
+ this.selection = window.getSelection();
};
$.extend(Cursor.prototype, {
+ sameAs: function(other) {
+ var same = true;
+ if(!other) {
+ return false;
+ }
+
+ ['focusNode', 'focusOffset', 'anchorNode', 'anchorOffset'].some(function(prop) {
+ same = same && this.selection[prop] === other.selection[prop];
+ if(!same) {
+ return true; // break
+ }
+ }.bind(this));
+
+ return same;
+ },
isSelecting: function() {
var selection = window.getSelection();
return !selection.isCollapsed;
isSelectingWithinElement: function() {
return this.isSelecting() && this.getSelectionStart().element.sameNode(this.getSelectionEnd().element);
},
+ isWithinElement: function() {
+ return !this.isSelecting() || this.isSelectingWithinElement();
+ },
isSelectingSiblings: function() {
return this.isSelecting() && this.getSelectionStart().element.parent().sameNode(this.getSelectionEnd().element.parent());
},
return {
element: anchorElement,
offset: selection.anchorOffset,
- offsetAtBeginning: selection.anchorOffset === 0,
- offsetAtEnd: selection.anchorNode.data.length === selection.anchorOffset
+ offsetAtBeginning: selection.anchorOffset === 0 || anchorElement.getText() === '',
+ offsetAtEnd: selection.anchorNode.data.length === selection.anchorOffset || anchorElement.getText() === ''
};
}
if(which === 'focus') {
return {
element: focusElement,
offset: selection.focusOffset,
- offsetAtBeginning: selection.focusOffset === 0,
- offsetAtEnd: selection.focusNode.data.length === selection.focusOffset
+ offsetAtBeginning: selection.focusOffset === 0 || focusElement.getText() === '',
+ offsetAtEnd: selection.focusNode.data.length === selection.focusOffset || focusElement.getText() === '',
};
}
- var element,
- offset;
-
- if(anchorElement.parent().sameNode(focusElement.parent())) {
- var parent = anchorElement.parent(),
- anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement);
+ var getPlaceData = function(anchorFirst) {
+ var element, offset;
if(anchorFirst) {
if(which === 'start') {
element = anchorElement;
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;
+ return {element: element, offset: offset};
+ };
+
+ var anchorFirst, placeData, parent;
+
+ if(anchorElement.parent().sameNode(focusElement.parent())) {
+ parent = anchorElement.parent();
+ if(selection.anchorNode === selection.focusNode) {
+ anchorFirst = selection.anchorOffset <= selection.focusOffset;
} else {
- element = focusElement;
- offset = selection.focusOffset;
+ anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement);
}
+ placeData = getPlaceData(anchorFirst);
+ } else {
+ /*jshint bitwise: false*/
+ anchorFirst = selection.anchorNode.compareDocumentPosition(selection.focusNode) & Node.DOCUMENT_POSITION_FOLLOWING;
+ placeData = getPlaceData(anchorFirst);
}
- var nodeLen = (element.sameNode(focusElement) ? selection.focusNode : selection.anchorNode).length;
+ var nodeLen = (placeData.element.sameNode(focusElement) ? selection.focusNode : selection.anchorNode).length;
return {
- element: element,
- offset: offset,
- offsetAtBeginning: offset === 0,
- offsetAtEnd: nodeLen === offset
+ element: placeData.element,
+ offset: placeData.offset,
+ offsetAtBeginning: placeData.offset === 0 || focusElement.getText() === '',
+ offsetAtEnd: nodeLen === placeData.offset || focusElement.getText() === ''
};
}
});
return {
- fromXMLDocument: function(wlxmlDocument, publisher) {
- return new Canvas(wlxmlDocument, publisher);
+ fromXMLDocument: function(wlxmlDocument) {
+ return new Canvas(wlxmlDocument);
}
};
fnp / fnpeditor.git / blobdiff