'libs/jquery',
'libs/underscore',
'libs/backbone',
+'fnpjs/logging/logging',
+'views/menu/menu',
'modules/documentCanvas/canvas/documentElement',
'modules/documentCanvas/canvas/keyboard',
'modules/documentCanvas/canvas/utils',
-'modules/documentCanvas/canvas/wlxmlListener'
-], function($, _, Backbone, documentElement, keyboard, utils, wlxmlListener) {
-
+'modules/documentCanvas/canvas/wlxmlListener',
+'modules/documentCanvas/canvas/elementsRegister',
+'modules/documentCanvas/canvas/genericElement',
+'modules/documentCanvas/canvas/nullElement',
+'modules/documentCanvas/canvas/gutter',
+'modules/documentCanvas/canvas/selection',
+'modules/documentCanvas/canvas/keyEvent',
+'libs/text!./canvas.html'
+], function($, _, Backbone, logging, Menu, documentElement, keyboard, utils, wlxmlListener, ElementsRegister, genericElement, nullElement, gutter, selection, keyEvent, canvasTemplate) {
+
'use strict';
-/* global document:false, window:false, Node:false */
+/* global document:false, window:false, Node:false, gettext */
+var logger = logging.getLogger('canvas');
var TextHandler = function(canvas) {this.canvas = canvas; this.buffer = null;};
$.extend(TextHandler.prototype, {
},
setText: function(text, node) {
//this.canvas.wlxmlDocument.transform('setText', {node:node, text: text});
- node.setText(text);
+ node.document.transaction(function() {
+ node.setText(text);
+ }, {
+ metadata:{
+ description: gettext('Changing text')
+ }
+ });
}
});
-var Canvas = function(wlxmlDocument, publisher) {
+var Canvas = function(wlxmlDocument, elements, metadata, sandbox) {
+ this.metadata = metadata || {};
+ this.sandbox = sandbox;
+ this.elementsRegister = this.createElementsRegister();
+
+ elements = [
+ {tag: 'section', klass: null, prototype: genericElement},
+ {tag: 'div', klass: null, prototype: genericElement},
+ {tag: 'header', klass: null, prototype: genericElement},
+ {tag: 'span', klass: null, prototype: genericElement},
+ {tag: 'aside', klass: null, prototype: genericElement}
+ ].concat(elements || []);
+
+ (elements).forEach(function(elementDesc) {
+ this.elementsRegister.register(elementDesc);
+ }.bind(this));
this.eventBus = _.extend({}, Backbone.Events);
- this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
+
+ this.dom = $(canvasTemplate);
+ this.rootWrapper = this.dom.find('.root-wrapper');
+
+
+ this.gutter = gutter.create();
+ this.gutterView = new gutter.GutterView(this.gutter);
+ this.dom.find('.view-row').append(this.gutterView.dom);
+
this.wlxmlListener = wlxmlListener.create(this);
this.loadWlxmlDocument(wlxmlDocument);
this.setupEventHandling();
- this.publisher = publisher ? publisher : function() {};
this.textHandler = new TextHandler(this);
};
-$.extend(Canvas.prototype, {
+$.extend(Canvas.prototype, Backbone.Events, {
+
+ createElementType: function(elementPrototype) {
+ /* TODO: reconcile this with ElementsRegister behavior */
+ var Constructor = function() {
+ documentElement.DocumentNodeElement.apply(this, Array.prototype.slice.call(arguments, 0));
+ };
+ Constructor.prototype = elementPrototype;
+ return Constructor;
+ },
+
+ getElementOffset: function(element) {
+ return element.dom.offset().top - this.dom.offset().top;
+ },
loadWlxmlDocument: function(wlxmlDocument) {
if(!wlxmlDocument) {
this.reloadRoot();
},
+ createElement: function(wlxmlNode, register, useRoot) {
+ var Factory;
+ register = register || this.elementsRegister;
+ if(wlxmlNode.nodeType === Node.TEXT_NODE) {
+ Factory = documentElement.DocumentTextElement;
+ } else {
+ Factory = register.getElement({tag: wlxmlNode.getTagName(), klass: wlxmlNode.getClass()});
+ }
+ if(!Factory && useRoot) {
+ Factory = this.elementsRegister.getElement({tag: wlxmlNode.getTagName(), klass: wlxmlNode.getClass()});
+ if(!Factory) {
+ Factory = documentElement.DocumentNodeElement;
+ }
+ }
+
+ if(Factory) {
+ return new Factory(wlxmlNode, this);
+ }
+ },
+
+ createElementsRegister: function() {
+ return new ElementsRegister(documentElement.DocumentNodeElement, nullElement);
+ },
+
+ 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 $element.data('canvas-element');
+ }
+
+ /* experimental */
+ if($element.parent().data('canvas-element')) {
+ return $element.parent().data('canvas-element');
+ }
+ },
+
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);
+ if(this.rootElement) {
+ this.rootElement.detach();
+ }
+ this.rootElement = this.createElement(this.wlxmlDocument.root);
+ this.rootWrapper.append(this.rootElement.dom);
+ },
- this.wrapper.empty();
- this.wrapper.append(canvasDOM);
- this.d = this.wrapper.children(0);
+ triggerKeyEvent: function(keyEvent, selection) {
+ selection = selection || this.getSelection();
+ if(selection && (
+ (selection.type === 'caret' || selection.type === 'textSelection') && selection.toDocumentFragment().isValid()
+ || selection.type == 'nodeSelection')) {
+ keyboard.handleKeyEvent(keyEvent, selection);
+ }
},
- generateCanvasDOM: function(wlxmlNode) {
- var element = documentElement.DocumentNodeElement.create(wlxmlNode, this);
- return element.dom();
+ createAction: function(fqName, config) {
+ return this.sandbox.createAction(fqName, config);
},
setupEventHandling: function() {
var canvas = this;
- this.wrapper.on('keyup keydown keypress', function(e) {
- keyboard.handleKey(e, this);
- }.bind(this));
- this.wrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
+ /* globals document */
+ $(document.body).on('keydown', function(e) {
+ canvas.triggerKeyEvent(keyEvent.fromNativeEvent(e));
+ });
+
+ this.rootWrapper.on('mouseup', function() {
+ canvas.triggerSelectionChanged();
+ });
+
+ var mouseDown;
+ this.rootWrapper.on('mousedown', '[document-node-element], [document-text-element]', function(e) {
+ mouseDown = e.target;
+ canvas.rootWrapper.find('[contenteditable]').attr('contenteditable', null);
+ });
+
+ this.rootWrapper.on('click', '[document-node-element], [document-text-element]', function(e) {
+ var position, element;
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) {
+ element = canvas.getDocumentElement(e.target);
+ if(element && element.wlxmlNode.nodeType === Node.ELEMENT_NODE) {
+ if(element.getVerticallyFirstTextElement && !element.getVerticallyFirstTextElement({considerChildren: false})) {
+ canvas.setCurrentElement(element);
+ return;
+ }
+ }
+ if(window.getSelection().isCollapsed) {
+ position = utils.caretPositionFromPoint(e.clientX, e.clientY);
+ canvas.setCurrentElement(canvas.getDocumentElement(position.textNode), {caretTo: position.offset});
+ }
+ }
+ }
});
+ this.rootWrapper.on('contextmenu', function(e) {
+ var el = canvas.getDocumentElement(e.target);
+
+ if(!el) {
+ return;
+ }
+
+ e.preventDefault();
+ this.showContextMenu(el, {x: e.clientX, y: e.clientY});
+ }.bind(this));
+
+ this.rootWrapper.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) {
mutations.forEach(function(mutation) {
- if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
+ if(canvas.dom[0].contains(mutation.target) && documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
observer.disconnect();
if(mutation.target.data === '') {
mutation.target.data = 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');
+ observer.observe(canvas.dom[0], config);
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);
}
}
});
});
var config = { attributes: false, childList: false, characterData: true, subtree: true, characterDataOldValue: true};
- observer.observe(this.wrapper[0], config);
+ observer.observe(this.rootWrapper[0], config);
- this.wrapper.on('mouseover', '[document-node-element], [document-text-element]', function(e) {
- var el = canvas.getDocumentElement(e.currentTarget);
+ var hoverHandler = function(e) {
+ var el = canvas.getDocumentElement(e.currentTarget),
+ expose = {
+ mouseover: true,
+ mouseout: false
+ };
if(!el) {
return;
}
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);
- });
+ el.updateState({exposed:expose[e.type]});
+ };
+
+ this.rootWrapper.on('mouseover', '[document-node-element], [document-text-element]', hoverHandler);
+ this.rootWrapper.on('mouseout', '[document-node-element], [document-text-element]', hoverHandler);
this.eventBus.on('elementToggled', function(toggle, element) {
if(!toggle) {
- canvas.setCurrentElement(element.getPreviousTextElement());
+ canvas.setCurrentElement(canvas.getPreviousTextElement(element));
}
});
},
view: function() {
- return this.wrapper;
+ return this.dom;
},
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) {
- var element = utils.findCanvasElement(node);
- element.toggleHighlight(toggle);
+ var element = utils.getElementForNode(node);
+ element.updateState({exposed: 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]);
+ return this.currentNodeElement;
},
getCurrentTextElement: function() {
- return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]);
+ var htmlElement = this.rootWrapper.find('.current-text-element')[0];
+ if(htmlElement) {
+ return this.getDocumentElement(htmlElement);
+ }
+ },
+
+ getPreviousTextElement: function(relativeToElement, includeInvisible) {
+ return this.getNearestTextElement('above', relativeToElement, includeInvisible);
+ },
+
+ getNextTextElement: function(relativeToElement, includeInvisible) {
+ return this.getNearestTextElement('below', relativeToElement, includeInvisible);
+ },
+
+ getNearestTextElement: function(direction, relativeToElement, includeInvisible) {
+ includeInvisible = includeInvisible !== undefined ? includeInvisible : false;
+ var selector = '[document-text-element]' + (includeInvisible ? '' : ':visible');
+ return this.getDocumentElement(utils.nearestInDocumentOrder(selector, direction, relativeToElement.dom[0]));
+ },
+
+ contains: function(element) {
+ return element && element.dom && element.dom.parents().index(this.rootWrapper) !== -1;
+ },
+
+ triggerSelectionChanged: function() {
+ var s = this.getSelection(),
+ f;
+ if(!s) {
+ return;
+ }
+ this.trigger('selectionChanged', s);
+ f = s.toDocumentFragment();
+
+ if(f && f instanceof f.RangeFragment) {
+ if(this.currentNodeElement) {
+ this.currentNodeElement.updateState({active: false});
+ this.currentNodeElement = null;
+ }
+ }
},
+ getSelection: function() {
+ return selection.fromNativeSelection(this);
+ },
+
+ select: function(fragment) {
+ if(fragment instanceof this.wlxmlDocument.RangeFragment) {
+ this.setCurrentElement(fragment.endNode, {caretTo: fragment.endOffset});
+ } else if(fragment instanceof this.wlxmlDocument.NodeFragment) {
+ var params = {
+ caretTo: fragment instanceof this.wlxmlDocument.CaretFragment ? fragment.offset : 'start'
+ };
+ this.setCurrentElement(fragment.node, params);
+ } else {
+ logger.debug('Fragment not supported');
+ }
+ },
+ setSelection: function(selection) {
+ this.select(this, selection.toDocumentFragment());
+ },
+ createSelection: function(params) {
+ return selection.fromParams(this, params);
+ },
setCurrentElement: function(element, params) {
+ if(!element) {
+ logger.debug('Invalid element passed to setCurrentElement: ' + element);
+ return;
+ }
+
if(!(element instanceof documentElement.DocumentElement)) {
- element = utils.findCanvasElement(element);
+ element = utils.getElementForNode(element);
+ }
+
+ if(!element || !this.contains(element)) {
+ logger.warning('Cannot set current element: element doesn\'t exist on canvas');
+ return;
}
params = _.extend({caretTo: 'end'}, params);
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;
+ return _.isFunction(e.getVerticallyFirstTextElement) ? e.getVerticallyFirstTextElement({considerChildren: false}) : 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');
+ this.rootWrapper.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._container().addClass('current-node-element');
- this.publisher('currentElementChanged', element);
+ if(this.currentNodeElement) {
+ this.currentNodeElement.updateState({active: false});
+ }
+ element.updateState({active: true});
+ this.currentNodeElement = element;
}
}.bind(this);
currentNodeElement = this.getCurrentNodeElement();
if(currentTextElement && !(currentTextElement.sameNode(textElementToLand))) {
- this.wrapper.find('.current-text-element').removeClass('current-text-element');
+ this.rootWrapper.find('.current-text-element').removeClass('current-text-element');
}
if(textElementToLand) {
_markAsCurrent(textElementToLand);
- if(params.caretTo || !textElementToLand.sameNode(this.getCursor().getPosition().element)) {
+ if((params.caretTo || params.caretTo === 0) || !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) {
var range = document.createRange(),
- node = element.dom().contents()[0];
+ node = element.dom.contents()[0];
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();
+ $(node).parent().attr('contenteditable', true);
selection.removeAllRanges();
selection.addRange(range);
- this.wrapper.focus(); // FF requires this for caret to be put where range colllapses, Chrome doesn't.
+ $(node).parent().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);
}
+ },
+ showContextMenu: function(element, coors) {
+ var menu = new Menu();
+
+ while(element) {
+ (element.contextMenuActions || []).forEach(menu.addAction.bind(menu));
+ element = element.parent();
+ }
+ if(menu.actions.length) {
+ menu.updateContextParam('fragment', this.getSelection().toDocumentFragment());
+ this.sandbox.showContextMenu(menu, {x: coors.x, y: coors.y});
+ }
}
});
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() === '',
};
}
if(selection.anchorNode === selection.focusNode) {
anchorFirst = selection.anchorOffset <= selection.focusOffset;
} else {
- anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement);
+ anchorFirst = (parent.getFirst(anchorElement, focusElement) === anchorElement);
}
placeData = getPlaceData(anchorFirst);
} else {
return {
element: placeData.element,
offset: placeData.offset,
- offsetAtBeginning: placeData.offset === 0,
- offsetAtEnd: nodeLen === 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, elements, metadata, sandbox) {
+ return new Canvas(wlxmlDocument, elements, metadata, sandbox);
}
};
fnp / fnpeditor.git / blobdiff