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define(['factory', 'class', 'menus', 'canvas', 'backend', 'alerts', 'progress_indicator', 'jquery-classlist', 'jsplumb'], |
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function(Factory, Class, Menus, Canvas, Backend, Alerts, Progress) { |
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/** |
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* Package: Base |
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*/ |
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/** |
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* Class: Editor |
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* This is the _abstract_ base class for all graph-kind-specific editors. It manages the visual components |
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* like menus and the graph itself. It is also responsible for global keybindings. |
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*/ |
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return Class.extend({ |
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/** |
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* Group: Members: |
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* {<Graph>} graph - <Graph> instance to be edited. |
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* {<PropertiesMenu>} properties - The <PropertiesMenu> instance used by this editor |
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* for changing the properties of nodes of the edited |
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* graph. |
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* {<ShapesMenu>} shapes - The <Menu::ShapeMenu> instance use by this editor |
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* to show the available shapes for the kind of the |
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* edited graph. |
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* {<Backend>} _backend - The instance of the <Backend> that is used to |
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* communicate graph changes to the server. |
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* {Object} _currentMinContentOffsets - Previously calculated minimal content offsets. |
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* {jQuery Selector} _nodeOffsetPrintStylesheet - The dynamically generated stylesheet used to fix |
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* the node offset when printing the page. |
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* {Underscore Template} _nodeOffsetStylesheetTemplate - The underscore.js template used to generate the |
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* CSS transformation for the print offset. |
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*/ |
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graph: undefined, |
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properties: undefined, |
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shapes: undefined, |
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layout: undefined, |
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_backend: undefined, |
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_currentMinNodeOffsets: {'top': 0, 'left': 0}, |
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_nodeOffsetPrintStylesheet: undefined, |
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_nodeOffsetStylesheetTemplate: undefined, |
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_clipboard: undefined, |
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/** |
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* Group: Initialization |
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*/ |
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/** |
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* Constructor: init |
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* Sets up the editor interface, handlers and loads the graph with the given ID from the backend. |
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* |
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* Parameters: |
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* {Number} graphId - The ID of the graph that is going to be edited by this editor. |
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*/ |
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init: function(graphId) { |
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if (typeof graphId !== 'number') |
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throw new TypeError('numeric graph ID', typeof graphId); |
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this._backend = Backend.establish(graphId); |
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// remember certain UI elements |
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this._progressIndicator = jQuery('#' + Factory.getModule('Config').IDs.PROGRESS_INDICATOR); |
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this._progressMessage = jQuery('#' + Factory.getModule('Config').IDs.PROGRESS_MESSAGE); |
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// run a few sub initializer |
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this._setupJsPlumb() |
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._setupNodeOffsetPrintStylesheet() |
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._setupEventCallbacks() |
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._setupMenuActions() |
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._setupDropDownBlur(); |
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// fetch the content from the backend |
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this._loadGraph(graphId); |
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}, |
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/** |
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* Group: Graph Loading |
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*/ |
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/** |
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* Method: _loadGraph |
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* Asynchronously loads the graph with the given ID from the backend. <_loadGraphFromJson> will be called |
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* when retrieval was successful. |
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* |
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* Parameters: |
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* {Number} graphId - ID of the graph that should be loaded. |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_loadGraph: function(graphId) { |
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this._backend.getGraph( |
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this._loadGraphFromJson.bind(this), |
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this._loadGraphError.bind(this) |
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); |
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return this; |
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}, |
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/** |
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* Method: _loadGraphCompleted |
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* Callback that gets fired when the graph is loaded completely. We need to perform certain actions |
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* afterwards, like initialization of menus and activation of backend observers to prevent calls to the |
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* backend while the graph is initially constructed. |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_loadGraphCompleted: function(readOnly) { |
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// create manager objects for the bars |
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this.properties = Factory.create(Factory.getModule('Menus').PropertiesMenu, Factory.getNotation().propertiesDisplayOrder); |
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this.shapes = Factory.create(Factory.getModule('Menus').ShapeMenu); |
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this.layout = Factory.create(Factory.getModule('Menus').LayoutMenu); |
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this.graph.layoutMenu = this.layout; |
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this._backend.activate(); |
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if (readOnly) { |
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Alerts.showInfoAlert('Remember:', 'this diagram is read-only'); |
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this.shapes.disable(); |
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this.properties.disable(); |
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Canvas.disableInteraction(); |
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} |
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// update the available menu items for the first time |
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this._updateMenuActions(); |
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// enable user interaction |
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this._setupMouse() |
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._setupKeyBindings(readOnly); |
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// fade out the splash screen |
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jQuery('#' + Factory.getModule('Config').IDs.SPLASH).fadeOut(Factory.getModule('Config').Splash.FADE_TIME, function() { |
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jQuery(this).remove(); |
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}); |
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return this; |
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}, |
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/** |
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* Method: _loadGraphError |
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* Callback that gets called in case <_loadGraph> results in an error. |
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*/ |
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_loadGraphError: function(response, textStatus, errorThrown) { |
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throw new NetworkError('could not retrieve graph'); |
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}, |
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/** |
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* Method: _loadGraphFromJson |
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* Callback triggered by the backend, passing the loaded JSON representation of the graph. It will |
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* initialize the editor's graph instance using the <Graph> class returned in <getGraphClass>. |
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* |
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* Parameters: |
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* {Object} json - JSON representation of the graph, loaded from the backend. |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_loadGraphFromJson: function(json) { |
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this.graph = Factory.create('Graph', json); |
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this._loadGraphCompleted(json.readOnly); |
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return this; |
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}, |
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/** |
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* Group: Setup |
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*/ |
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/** |
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* Method: _setupDropDownBlur |
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* Register an event handler that takes care of closing and blurring all currently open drop down menu |
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* items from the toolbar. |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_setupDropDownBlur: function () { |
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jQuery('#' + Factory.getModule('Config').IDs.CANVAS).mousedown(function(event) { |
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// close open bootstrap dropdown |
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jQuery('.dropdown.open') |
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.removeClass('open') |
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.find('a') |
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.blur(); |
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}); |
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return this; |
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}, |
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/** |
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* Method: _setupMenuActions |
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* Registers the event handlers for graph type - independent menu entries that trigger JS calls |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_setupMenuActions: function() { |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_GRID_TOGGLE).click(function() { |
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Canvas.toggleGrid(); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_CUT).click(function() { |
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this._cutSelection(); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_COPY).click(function() { |
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this._copySelection(); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_PASTE).click(function() { |
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this._paste(); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_DELETE).click(function() { |
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this._deleteSelection(); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_SELECTALL).click(function(event) { |
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this._selectAll(event); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_LAYOUT_CLUSTER).click(function() { |
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this.graph._layoutWithAlgorithm(this.graph._getClusterLayoutAlgorithm()); |
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}.bind(this)); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_LAYOUT_TREE).click(function() { |
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this.graph._layoutWithAlgorithm(this.graph._getTreeLayoutAlgorithm()); |
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}.bind(this)); |
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// set the shortcut hints from 'Ctrl+' to '⌘' when on Mac |
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if (navigator.platform == 'MacIntel' || navigator.platform == 'MacPPC') { |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_CUT + ' span').text('⌘X'); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_COPY + ' span').text('⌘C'); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_PASTE + ' span').text('⌘P'); |
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jQuery('#' + Factory.getModule('Config').IDs.ACTION_SELECTALL + ' span').text('⌘A'); |
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} |
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return this; |
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}, |
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/** |
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* Method: _setupJsPlumb |
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* Sets all jsPlumb defaults used by this editor. |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_setupJsPlumb: function() { |
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jsPlumb.importDefaults({ |
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EndpointStyle: { |
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fillStyle: Factory.getModule('Config').JSPlumb.ENDPOINT_FILL |
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}, |
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Endpoint: [Factory.getModule('Config').JSPlumb.ENDPOINT_STYLE, { |
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radius: Factory.getModule('Config').JSPlumb.ENDPOINT_RADIUS, |
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cssClass: Factory.getModule('Config').Classes.JSPLUMB_ENDPOINT, |
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hoverClass: Factory.getModule('Config').Classes.HIGHLIGHTED |
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}], |
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PaintStyle: { |
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strokeStyle: Factory.getModule('Config').JSPlumb.STROKE_COLOR, |
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lineWidth: Factory.getModule('Config').JSPlumb.STROKE_WIDTH, |
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outlineColor: Factory.getModule('Config').JSPlumb.OUTLINE_COLOR, |
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outlineWidth: Factory.getModule('Config').JSPlumb.OUTLINE_WIDTH |
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}, |
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HoverPaintStyle: { |
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strokeStyle: Factory.getModule('Config').JSPlumb.STROKE_COLOR_HIGHLIGHTED |
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}, |
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HoverClass: Factory.getModule('Config').Classes.HIGHLIGHTED, |
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Connector: [Factory.getModule('Config').JSPlumb.CONNECTOR_STYLE, Factory.getModule('Config').JSPlumb.CONNECTOR_OPTIONS], |
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ConnectionsDetachable: false, |
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ConnectionOverlays: Factory.getModule('Config').JSPlumb.CONNECTION_OVERLAYS |
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}); |
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jsPlumb.connectorClass = Factory.getModule('Config').Classes.JSPLUMB_CONNECTOR; |
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return this; |
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}, |
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/** |
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* Method: _setupMouse |
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* Sets up callbacks that fire when the user interacts with the editor using his mouse. So far this is |
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* only concerns resizing the window. |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_setupMouse: function() { |
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jQuery(window).resize(function() { |
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var content = jQuery('#' + Factory.getModule('Config').IDs.CONTENT); |
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Canvas.enlarge({ |
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x: content.width(), |
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y: content.height() |
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}, true); |
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}.bind(this)); |
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return this; |
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}, |
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/** |
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* Method: _setupKeyBindings |
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* Setup the global key bindings |
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* |
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* Keys: |
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* ESCAPE - Clear selection. |
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* DELETE/BACKSPACE - Delete all selected elements (nodes/edges). |
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* UP/RIGHT/DOWN/LEFT - Move the node in the according direction |
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* CTRL/CMD + A - Select all nodes and edges |
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* CTRL/CMD + C/X/V - Copy, cut and paste |
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* |
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* Returns: |
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* This {<Editor>} instance for chaining. |
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*/ |
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_setupKeyBindings: function(readOnly) { |
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if (readOnly) return this; |
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jQuery(document).keydown(function(event) { |
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if (event.which == jQuery.ui.keyCode.ESCAPE) { |
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|
this._escapePressed(event); |
|
317
|
|
|
} else if (event.which === jQuery.ui.keyCode.DELETE || event.which === jQuery.ui.keyCode.BACKSPACE) { |
|
318
|
|
|
this._deletePressed(event); |
|
319
|
|
|
} else if (event.which === jQuery.ui.keyCode.UP) { |
|
320
|
|
|
this._arrowKeyPressed(event, 0, -1); |
|
321
|
|
|
} else if (event.which === jQuery.ui.keyCode.RIGHT) { |
|
322
|
|
|
this._arrowKeyPressed(event, 1, 0); |
|
323
|
|
|
} else if (event.which === jQuery.ui.keyCode.DOWN) { |
|
324
|
|
|
this._arrowKeyPressed(event, 0, 1); |
|
325
|
|
|
} else if (event.which === jQuery.ui.keyCode.LEFT) { |
|
326
|
|
|
this._arrowKeyPressed(event, -1, 0); |
|
327
|
|
|
} else if (event.which === 'A'.charCodeAt() && (event.metaKey || event.ctrlKey)) { |
|
328
|
|
|
this._selectAllPressed(event); |
|
329
|
|
|
} else if (event.which === 'C'.charCodeAt() && (event.metaKey || event.ctrlKey)) { |
|
330
|
|
|
this._copyPressed(event); |
|
331
|
|
|
} else if (event.which === 'X'.charCodeAt() && (event.metaKey || event.ctrlKey)) { |
|
332
|
|
|
this._cutPressed(event); |
|
333
|
|
|
} else if (event.which === 'V'.charCodeAt() && (event.metaKey || event.ctrlKey)) { |
|
334
|
|
|
this._pastePressed(event); |
|
335
|
|
|
} |
|
336
|
|
|
}.bind(this)); |
|
337
|
|
|
|
|
338
|
|
|
return this; |
|
339
|
|
|
}, |
|
340
|
|
|
|
|
341
|
|
|
/** |
|
342
|
|
|
* Method: _setupNodeOffsetPrintStylesheet |
|
343
|
|
|
* Creates a print stylesheet which is used to compensate the node offsets on the canvas when printing. |
|
344
|
|
|
* Also sets up the CSS template which is used to change the transformation every time the content changes. |
|
345
|
|
|
* |
|
346
|
|
|
* Returns: |
|
347
|
|
|
* This {<Editor>} instance for chaining. |
|
348
|
|
|
*/ |
|
349
|
|
|
_setupNodeOffsetPrintStylesheet: function() { |
|
350
|
|
|
// dynamically create a stylesheet, append it to the head and keep the reference to it |
|
351
|
|
|
this._nodeOffsetPrintStylesheet = jQuery('<style>') |
|
352
|
|
|
.attr('type', 'text/css') |
|
353
|
|
|
.attr('media', 'print') |
|
354
|
|
|
.appendTo('head'); |
|
355
|
|
|
|
|
356
|
|
|
// this style will transform all elements on the canvas by the given 'x' and 'y' offset |
|
357
|
|
|
var transformCssTemplateText = |
|
358
|
|
|
'#' + Factory.getModule('Config').IDs.CANVAS + ' > * {\n' + |
|
359
|
|
|
' transform: translate(<%= x %>px,<%= y %>px);\n' + |
|
360
|
|
|
' -ms-transform: translate(<%= x %>px,<%= y %>px); /* IE 9 */\n' + |
|
361
|
|
|
' -webkit-transform: translate(<%= x %>px,<%= y %>px); /* Safari and Chrome */\n' + |
|
362
|
|
|
' -o-transform: translate(<%= x %>px,<%= y %>px); /* Opera */\n' + |
|
363
|
|
|
' -moz-transform: translate(<%= x %>px,<%= y %>px); /* Firefox */\n' + |
|
364
|
|
|
'}'; |
|
365
|
|
|
// store this as a template so we can use it later to manipulate the offset |
|
366
|
|
|
this._nodeOffsetStylesheetTemplate = _.template(transformCssTemplateText); |
|
367
|
|
|
|
|
368
|
|
|
return this; |
|
369
|
|
|
}, |
|
370
|
|
|
|
|
371
|
|
|
/** |
|
372
|
|
|
* Method: _setupEventCallbacks |
|
373
|
|
|
* Registers all event listeners of the editor. |
|
374
|
|
|
* |
|
375
|
|
|
* On: |
|
376
|
|
|
* <Config::Events::NODE_DRAG_STOPPED> |
|
377
|
|
|
* <Config::Events::NODE_ADDED> |
|
378
|
|
|
* <Config::Events::NODE_DELETED> |
|
379
|
|
|
* |
|
380
|
|
|
* Returns: |
|
381
|
|
|
* This {<Editor>} instance for chaining. |
|
382
|
|
|
*/ |
|
383
|
|
|
_setupEventCallbacks: function() { |
|
384
|
|
|
// events that trigger a re-calculation of the print offsets |
|
385
|
|
|
jQuery(document).on(Factory.getModule('Config').Events.NODE_DRAG_STOPPED, this._updatePrintOffsets.bind(this)); |
|
386
|
|
|
jQuery(document).on(Factory.getModule('Config').Events.NODE_ADDED, this._updatePrintOffsets.bind(this)); |
|
387
|
|
|
jQuery(document).on(Factory.getModule('Config').Events.NODE_DELETED, this._updatePrintOffsets.bind(this)); |
|
388
|
|
|
|
|
389
|
|
|
// update the available menu actions corresponding to the current selection |
|
390
|
|
|
jQuery(document).on([ Factory.getModule('Config').Events.NODE_SELECTED, |
|
391
|
|
|
Factory.getModule('Config').Events.NODE_UNSELECTED ].join(' '), |
|
392
|
|
|
this._updateMenuActions.bind(this)); |
|
393
|
|
|
|
|
394
|
|
|
// show status of global AJAX events in navbar |
|
395
|
|
|
jQuery(document).ajaxSend(Progress.showAjaxProgress); |
|
396
|
|
|
jQuery(document).ajaxSuccess(Progress.flashAjaxSuccessMessage); |
|
397
|
|
|
jQuery(document).ajaxError(Progress.flashAjaxErrorMessage); |
|
398
|
|
|
|
|
399
|
|
|
return this; |
|
400
|
|
|
}, |
|
401
|
|
|
|
|
402
|
|
|
/** |
|
403
|
|
|
* Group: Graph Editing |
|
404
|
|
|
*/ |
|
405
|
|
|
|
|
406
|
|
|
/** |
|
407
|
|
|
* Method: _deleteSelection |
|
408
|
|
|
* Will remove the selected nodes and edges. |
|
409
|
|
|
* |
|
410
|
|
|
* Returns: |
|
411
|
|
|
* This {<Editor>} instance for chaining |
|
412
|
|
|
*/ |
|
413
|
|
|
_deleteSelection: function() { |
|
414
|
|
|
var deletableNodes = this._deletable(this._selectedNodes()); |
|
415
|
|
|
var deletableEdges = this._deletable(this._selectedEdges()); |
|
416
|
|
|
var deletableNodeGroups = this._deletable(this._selectedNodeGroups()); |
|
417
|
|
|
|
|
418
|
|
|
// delete selected nodes |
|
419
|
|
|
_.each(deletableNodes, this.graph.deleteNode.bind(this.graph)); |
|
420
|
|
|
|
|
421
|
|
|
// delete selected edges |
|
422
|
|
|
_.each(deletableEdges, this.graph.deleteEdge.bind(this.graph)); |
|
423
|
|
|
|
|
424
|
|
|
// delete selected node groups |
|
425
|
|
|
_.each(deletableNodeGroups, this.graph.deleteNodeGroup.bind(this.graph)); |
|
426
|
|
|
|
|
427
|
|
|
// if at least one element was deletable, hide the properties window (if it isn't already) |
|
428
|
|
|
if (_.union(deletableNodes, deletableEdges, deletableNodeGroups).length > 0) this.properties.hide(); |
|
429
|
|
|
|
|
430
|
|
|
// update the available menu actions |
|
431
|
|
|
this._updateMenuActions(); |
|
432
|
|
|
|
|
433
|
|
|
return this; |
|
434
|
|
|
}, |
|
435
|
|
|
|
|
436
|
|
|
/** |
|
437
|
|
|
* Method: _selectedNodes |
|
438
|
|
|
* Finds currently selected nodes. |
|
439
|
|
|
* |
|
440
|
|
|
* Returns: |
|
441
|
|
|
* An array of currently selected {<Node>} instances. |
|
442
|
|
|
*/ |
|
443
|
|
|
_selectedNodes: function() { |
|
444
|
|
|
var selectedNodes = '.' + Factory.getModule('Config').Classes.SELECTED + '.' + Factory.getModule('Config').Classes.NODE; |
|
445
|
|
|
|
|
446
|
|
|
var nodes = []; |
|
447
|
|
|
jQuery(selectedNodes).each(function(index, element) { |
|
448
|
|
|
var node = this.graph.getNodeById(jQuery(element).data(Factory.getModule('Config').Keys.NODE).id); |
|
449
|
|
|
nodes.push(node); |
|
450
|
|
|
}.bind(this)); |
|
451
|
|
|
|
|
452
|
|
|
return nodes; |
|
453
|
|
|
}, |
|
454
|
|
|
|
|
455
|
|
|
/** |
|
456
|
|
|
* Method: _selectedEdges |
|
457
|
|
|
* Finds currently selected edges. |
|
458
|
|
|
* |
|
459
|
|
|
* Returns: |
|
460
|
|
|
* An array of currently selected {<Edge>} instances. |
|
461
|
|
|
*/ |
|
462
|
|
|
_selectedEdges: function() { |
|
463
|
|
|
var selectedEdges = '.' + Factory.getModule('Config').Classes.SELECTED + '.' + Factory.getModule('Config').Classes.JSPLUMB_CONNECTOR; |
|
464
|
|
|
|
|
465
|
|
|
var edges = []; |
|
466
|
|
|
jQuery(selectedEdges).each(function(index, element) { |
|
467
|
|
|
var edge = jQuery(element).data(Factory.getModule('Config').Keys.EDGE); |
|
468
|
|
|
edges.push(edge); |
|
469
|
|
|
}.bind(this)); |
|
470
|
|
|
|
|
471
|
|
|
return edges; |
|
472
|
|
|
}, |
|
473
|
|
|
|
|
474
|
|
|
/** |
|
475
|
|
|
* Method: _selectedNodeGroups |
|
476
|
|
|
* Finds currently selected node groups. |
|
477
|
|
|
* |
|
478
|
|
|
* Returns: |
|
479
|
|
|
* An array of currently selected {<NodeGroup>} instances. |
|
480
|
|
|
*/ |
|
481
|
|
|
_selectedNodeGroups: function() { |
|
482
|
|
|
var nodegroups = []; |
|
483
|
|
|
// find selected node groups (NASTY!!!) |
|
484
|
|
|
var allNodeGroups = '.' + Factory.getModule('Config').Classes.NODEGROUP; |
|
485
|
|
|
|
|
486
|
|
|
jQuery(allNodeGroups).each(function(index, element) { |
|
487
|
|
|
var nodeGroup = jQuery(element).data(Factory.getModule('Config').Keys.NODEGROUP); |
|
488
|
|
|
// since the selectable element is an svg path, we need to look for that nested element and check its |
|
489
|
|
|
// state of selection via the CSS class .selected |
|
490
|
|
|
if (nodeGroup.container.find("svg path").hasClass(Factory.getModule('Config').Classes.SELECTED)) { |
|
491
|
|
|
nodegroups.push(nodeGroup); |
|
492
|
|
|
} |
|
493
|
|
|
}.bind(this)); |
|
494
|
|
|
|
|
495
|
|
|
return nodegroups; |
|
496
|
|
|
}, |
|
497
|
|
|
|
|
498
|
|
|
/** |
|
499
|
|
|
* Method: _copyable |
|
500
|
|
|
* Filters the given array of elements (Nodes, Edges, NodeGroups) for copyable ones. |
|
501
|
|
|
* |
|
502
|
|
|
* Returns: |
|
503
|
|
|
* An array of elements that are copyable. |
|
504
|
|
|
*/ |
|
505
|
|
|
_copyable: function(elements) { |
|
506
|
|
|
return _.filter(elements, function(elem) { return elem.copyable; }); |
|
507
|
|
|
}, |
|
508
|
|
|
|
|
509
|
|
|
/** |
|
510
|
|
|
* Method: _deletable |
|
511
|
|
|
* Filters the given array of elements (Nodes, Edges, NodeGroups) for deletable ones. |
|
512
|
|
|
* |
|
513
|
|
|
* Returns: |
|
514
|
|
|
* An array of elements that are deletable. |
|
515
|
|
|
*/ |
|
516
|
|
|
_deletable: function(elements) { |
|
517
|
|
|
return _.filter(elements, function(elem) { return elem.deletable; }); |
|
518
|
|
|
}, |
|
519
|
|
|
|
|
520
|
|
|
/** |
|
521
|
|
|
* Method: _cuttable |
|
522
|
|
|
* Filters the given array of elements (Nodes, Edges, NodeGroups) for cuttable ones. |
|
523
|
|
|
* |
|
524
|
|
|
* Returns: |
|
525
|
|
|
* An array of elements that are cuttable. |
|
526
|
|
|
*/ |
|
527
|
|
|
_cuttable: function(elements) { |
|
528
|
|
|
return _.intersection(this._copyable(elements), this._deletable(elements)); |
|
529
|
|
|
}, |
|
530
|
|
|
|
|
531
|
|
|
/** |
|
532
|
|
|
* Method: _updateMenuActions |
|
533
|
|
|
* Will update the enabled/disabled status of the menu actions depending on the current selection. |
|
534
|
|
|
* |
|
535
|
|
|
* Returns: |
|
536
|
|
|
* This {<Editor>} instance for chaining. |
|
537
|
|
|
*/ |
|
538
|
|
|
|
|
539
|
|
|
_updateMenuActions: function() { |
|
540
|
|
|
var selectedNodes = this._selectedNodes(); |
|
541
|
|
|
var selectedElems = selectedNodes.concat( |
|
542
|
|
|
this._selectedEdges().concat( |
|
543
|
|
|
this._selectedNodeGroups())); |
|
544
|
|
|
|
|
545
|
|
|
// copy is only available when at least one node is copyable as copying edges or node groups solely won't |
|
546
|
|
|
// have any effect (because they can't be restored) |
|
547
|
|
|
if (this._copyable(selectedNodes).length > 0) { |
|
548
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_COPY).parent().removeClass('disabled'); |
|
549
|
|
|
} else { |
|
550
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_COPY).parent().addClass('disabled'); |
|
551
|
|
|
} |
|
552
|
|
|
|
|
553
|
|
|
// same here: cut is only available when at least one node is cuttable |
|
554
|
|
|
if (this._cuttable(selectedNodes).length > 0) { |
|
555
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_CUT).parent().removeClass('disabled'); |
|
556
|
|
|
} else { |
|
557
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_CUT).parent().addClass('disabled'); |
|
558
|
|
|
} |
|
559
|
|
|
|
|
560
|
|
|
// delete is only available when the selection is not empty and at least one element is deletable |
|
561
|
|
|
if (selectedElems.length > 0 && this._deletable(selectedElems).length > 0) { |
|
562
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_DELETE).parent().removeClass('disabled'); |
|
563
|
|
|
} else { |
|
564
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_DELETE).parent().addClass('disabled'); |
|
565
|
|
|
} |
|
566
|
|
|
|
|
567
|
|
|
// paste is only available when the graph is not read-only there is something in the clipboard |
|
568
|
|
|
if (!this.graph.readOnly && this._getClipboard()) { |
|
569
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_PASTE).parent().removeClass('disabled'); |
|
570
|
|
|
} else { |
|
571
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_PASTE).parent().addClass('disabled'); |
|
572
|
|
|
} |
|
573
|
|
|
|
|
574
|
|
|
// select all is only available when the graph is not read-only |
|
575
|
|
|
if (!this.graph.readOnly) { |
|
576
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_SELECTALL).parent().removeClass('disabled'); |
|
577
|
|
|
} else { |
|
578
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_SELECTALL).parent().addClass('disabled'); |
|
579
|
|
|
} |
|
580
|
|
|
|
|
581
|
|
|
// layouting is only available when the graph is not read-only |
|
582
|
|
|
if (!this.graph.readOnly) { |
|
583
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_LAYOUT_CLUSTER).parent().removeClass('disabled'); |
|
584
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_LAYOUT_TREE).parent().removeClass('disabled'); |
|
585
|
|
|
} else { |
|
586
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_LAYOUT_CLUSTER).parent().addClass('disabled'); |
|
587
|
|
|
jQuery('#' + Factory.getModule('Config').IDs.ACTION_LAYOUT_TREE).parent().addClass('disabled'); |
|
588
|
|
|
} |
|
589
|
|
|
|
|
590
|
|
|
return this; |
|
591
|
|
|
}, |
|
592
|
|
|
|
|
593
|
|
|
/** |
|
594
|
|
|
* Method: _selectAll |
|
595
|
|
|
* Will select all nodes and edges. |
|
596
|
|
|
* |
|
597
|
|
|
* Parameters: |
|
598
|
|
|
* {jQuery::Event} event - the issued select all keypress event |
|
599
|
|
|
* |
|
600
|
|
|
* Returns: |
|
601
|
|
|
* This {<Editor>} instance for chaining. |
|
602
|
|
|
*/ |
|
603
|
|
|
|
|
604
|
|
|
_selectAll: function(event) { |
|
605
|
|
|
//XXX: trigger selection start event manually here |
|
606
|
|
|
//XXX: hack to emulate a new selection process |
|
607
|
|
|
Canvas.container.data(Factory.getModule('Config').Keys.SELECTABLE)._mouseStart(event); |
|
608
|
|
|
|
|
609
|
|
|
jQuery('.' + Factory.getModule('Config').Classes.SELECTEE) |
|
610
|
|
|
.addClass(Factory.getModule('Config').Classes.SELECTING) |
|
611
|
|
|
.addClass(Factory.getModule('Config').Classes.SELECTED); |
|
612
|
|
|
|
|
613
|
|
|
//XXX: trigger selection stop event manually here |
|
614
|
|
|
//XXX: nasty hack to bypass draggable and selectable incompatibility, see also canvas.js |
|
615
|
|
|
Canvas.container.data(Factory.getModule('Config').Keys.SELECTABLE)._mouseStop(null); |
|
616
|
|
|
}, |
|
617
|
|
|
|
|
618
|
|
|
/** |
|
619
|
|
|
* Method: _deselectAll |
|
620
|
|
|
* Deselects all the nodes and edges in the current graph. |
|
621
|
|
|
* |
|
622
|
|
|
* Parameters: |
|
623
|
|
|
* {jQuery::Event} event - (optional) the issued select all keypress event |
|
624
|
|
|
* |
|
625
|
|
|
* Returns: |
|
626
|
|
|
* This {<Editor>} instance for chaining. |
|
627
|
|
|
*/ |
|
628
|
|
|
_deselectAll: function(event) { |
|
629
|
|
|
if (typeof event === 'undefined') { |
|
630
|
|
|
event = window.event; |
|
631
|
|
|
} |
|
632
|
|
|
|
|
633
|
|
|
//XXX: Since a deselect-click (which we simulate here) only works without metaKey or ctrlKey pressed, |
|
634
|
|
|
// we need to deactivate them manually. |
|
635
|
|
|
var hackEvent = jQuery.extend({}, event, { |
|
636
|
|
|
metaKey: false, |
|
637
|
|
|
ctrlKey: false |
|
638
|
|
|
}); |
|
639
|
|
|
|
|
640
|
|
|
//XXX: deselect everything |
|
641
|
|
|
// This uses the jQuery.ui.selectable internal functions. |
|
642
|
|
|
// We need to trigger them manually in order to simulate a click on the canvas. |
|
643
|
|
|
Canvas.container.data(Factory.getModule('Config').Keys.SELECTABLE)._mouseStart(hackEvent); |
|
644
|
|
|
Canvas.container.data(Factory.getModule('Config').Keys.SELECTABLE)._mouseStop(hackEvent); |
|
645
|
|
|
|
|
646
|
|
|
return this; |
|
647
|
|
|
}, |
|
648
|
|
|
|
|
649
|
|
|
/** |
|
650
|
|
|
* Method: _copySelection |
|
651
|
|
|
* Will copy all selected nodes by serializing and saving them to HTML5 Local Storage or the _clipboard |
|
652
|
|
|
* variable if Local Storage is not available. |
|
653
|
|
|
* |
|
654
|
|
|
* Returns: |
|
655
|
|
|
* This {<Editor>} instance for chaining. |
|
656
|
|
|
*/ |
|
657
|
|
|
_copySelection: function() { |
|
658
|
|
|
// select copyable elements and transform them into dicts for later serialization |
|
659
|
|
|
var nodes = _.invoke(this._copyable(this._selectedNodes()), 'toDict'); |
|
660
|
|
|
var edges = _.invoke(this._copyable(this._selectedEdges()), 'toDict'); |
|
661
|
|
|
var nodegroups = _.invoke(this._copyable(this._selectedNodeGroups()), 'toDict'); |
|
662
|
|
|
|
|
663
|
|
|
// copying only makes sense, when at least one node is involved (i.e. in the current selection), because |
|
664
|
|
|
// edges and node groups can only be recreated at paste, when nodes are as well. |
|
665
|
|
|
if (nodes.length === 0) return; |
|
666
|
|
|
|
|
667
|
|
|
var clipboard = { |
|
668
|
|
|
'pasteCount': 0, |
|
669
|
|
|
'nodes': nodes, |
|
670
|
|
|
'edges': edges, |
|
671
|
|
|
'nodeGroups': nodegroups |
|
672
|
|
|
}; |
|
673
|
|
|
|
|
674
|
|
|
this._updateClipboard(clipboard); |
|
675
|
|
|
|
|
676
|
|
|
// update available menu actions, so the paste menu action will be enabled |
|
677
|
|
|
this._updateMenuActions(); |
|
678
|
|
|
}, |
|
679
|
|
|
|
|
680
|
|
|
/** |
|
681
|
|
|
* Method: _paste |
|
682
|
|
|
* Will paste previously copied nodes from HTML5 Local Storage or the _clipboard variable. |
|
683
|
|
|
* |
|
684
|
|
|
* Returns: |
|
685
|
|
|
* This {<Editor>} instance for chaining. |
|
686
|
|
|
*/ |
|
687
|
|
|
_paste: function() { |
|
688
|
|
|
// fetch clipboard contents |
|
689
|
|
|
var clipboard = this._getClipboard(); |
|
690
|
|
|
|
|
691
|
|
|
// if there is nothing in the clipboard, return |
|
692
|
|
|
if (!clipboard) return; |
|
693
|
|
|
|
|
694
|
|
|
// deselect the original nodes and edges |
|
695
|
|
|
this._deselectAll(); |
|
696
|
|
|
|
|
697
|
|
|
// increase paste count (used for nicely positioning multiple pastes) |
|
698
|
|
|
var pasteCount = ++clipboard.pasteCount; |
|
699
|
|
|
this._updateClipboard(clipboard); |
|
700
|
|
|
|
|
701
|
|
|
var nodes = clipboard.nodes; |
|
702
|
|
|
var edges = clipboard.edges; |
|
703
|
|
|
var nodeGroups = clipboard.nodeGroups; |
|
704
|
|
|
|
|
705
|
|
|
var ids = {}; // stores to every old id the newly generated id to connect the nodes again |
|
706
|
|
|
var boundingBox = this._boundingBoxForNodes(nodes); // used along with pasteCount to place the copy nicely |
|
707
|
|
|
|
|
708
|
|
|
_.each(nodes, function(jsonNode) { |
|
709
|
|
|
var pasteId = this.graph.createId(); |
|
710
|
|
|
ids[jsonNode.id] = pasteId; |
|
711
|
|
|
jsonNode.id = pasteId; |
|
712
|
|
|
jsonNode.x += pasteCount * (boundingBox.width + 1); |
|
713
|
|
|
jsonNode.y += pasteCount * (boundingBox.height + 1); |
|
714
|
|
|
|
|
715
|
|
|
var node = this.graph.addNode(jsonNode); |
|
716
|
|
|
if (node) node.select(); |
|
717
|
|
|
}.bind(this)); |
|
718
|
|
|
|
|
719
|
|
|
_.each(edges, function(jsonEdge) { |
|
720
|
|
|
jsonEdge.id = undefined; |
|
721
|
|
|
jsonEdge.source = ids[jsonEdge.sourceNodeId] || jsonEdge.sourceNodeId; |
|
722
|
|
|
jsonEdge.target = ids[jsonEdge.targetNodeId] || jsonEdge.targetNodeId; |
|
723
|
|
|
|
|
724
|
|
|
var edge = this.graph.addEdge(jsonEdge); |
|
725
|
|
|
if (edge) edge.select(); |
|
726
|
|
|
}.bind(this)); |
|
727
|
|
|
|
|
728
|
|
|
_.each(nodeGroups, function(jsonNodeGroup) { |
|
729
|
|
|
// remove the original nodeGroup's identity |
|
730
|
|
|
jsonNodeGroup.id = undefined; |
|
731
|
|
|
// map old ids to new ids |
|
732
|
|
|
jsonNodeGroup.nodeIds = _.map(jsonNodeGroup.nodeIds, function(nodeId) { |
|
733
|
|
|
return ids[nodeId] || nodeId; |
|
734
|
|
|
}); |
|
735
|
|
|
|
|
736
|
|
|
var nodeGroup = this.graph.addNodeGroup(jsonNodeGroup); |
|
737
|
|
|
if (nodeGroup) nodeGroup.select(); |
|
738
|
|
|
}.bind(this)); |
|
739
|
|
|
|
|
740
|
|
|
//XXX: trigger selection stop event manually here |
|
741
|
|
|
//XXX: nasty hack to bypass draggable and selectable incompatibility, see also canvas.js |
|
742
|
|
|
Canvas.container.data(Factory.getModule('Config').Keys.SELECTABLE)._mouseStop(null); |
|
743
|
|
|
}, |
|
744
|
|
|
|
|
745
|
|
|
/** |
|
746
|
|
|
* Method: _cutSelection |
|
747
|
|
|
* Will delete and copy selected nodes by using _updateClipboard(). |
|
748
|
|
|
* |
|
749
|
|
|
* Returns: |
|
750
|
|
|
* This {<Editor>} instance for chaining. |
|
751
|
|
|
*/ |
|
752
|
|
|
_cutSelection: function() { |
|
753
|
|
|
this._copySelection(); |
|
754
|
|
|
this._deleteSelection(); |
|
755
|
|
|
|
|
756
|
|
|
// set the just copied clipboard's pasteCount to -1, so that it will paste right in place of the original. |
|
757
|
|
|
var clipboard = this._getClipboard(); |
|
758
|
|
|
--clipboard.pasteCount; |
|
759
|
|
|
this._updateClipboard(clipboard); |
|
760
|
|
|
}, |
|
761
|
|
|
|
|
762
|
|
|
/** |
|
763
|
|
|
* Method: _groupSelection |
|
764
|
|
|
* |
|
765
|
|
|
* Will create a new NodeGroup with the current selected nodes. |
|
766
|
|
|
* |
|
767
|
|
|
* Note: Node Groups are an abstract concept, that every diagram type has to implement on its own. So this |
|
768
|
|
|
* method can't be accessed by the user, unless you provide Menu Actions or Key Events for it. |
|
769
|
|
|
* (see dfd/editor.js for examples of correct subclassing) |
|
770
|
|
|
* |
|
771
|
|
|
* Returns: |
|
772
|
|
|
* This Editor instance for chaining. |
|
773
|
|
|
*/ |
|
774
|
|
|
_groupSelection: function() { |
|
775
|
|
|
var selectedNodes = this._selectedNodes(); |
|
776
|
|
|
|
|
777
|
|
|
if(selectedNodes.length > 1) |
|
778
|
|
|
{ |
|
779
|
|
|
var jsonNodeGroup = { |
|
780
|
|
|
nodeIds: _.map(selectedNodes, function(node){return node.id;}.bind(this)) |
|
781
|
|
|
}; |
|
782
|
|
|
this.graph.addNodeGroup(jsonNodeGroup); |
|
783
|
|
|
} |
|
784
|
|
|
|
|
785
|
|
|
return this; |
|
786
|
|
|
}, |
|
787
|
|
|
|
|
788
|
|
|
/** |
|
789
|
|
|
* Method: _ungroupSelection |
|
790
|
|
|
* |
|
791
|
|
|
* Will ungroup either the NodeGroup, that only consists of the selected nodes, or the selected NodeGroups |
|
792
|
|
|
* directly. |
|
793
|
|
|
* |
|
794
|
|
|
* Note: This method can't be accessed by the user, unless you provide Menu Actions or Key Events for it. |
|
795
|
|
|
* (see dfd/editor.js for examples of correct subclassing) |
|
796
|
|
|
* |
|
797
|
|
|
* Returns: |
|
798
|
|
|
* Success |
|
799
|
|
|
*/ |
|
800
|
|
|
_ungroupSelection: function() { |
|
801
|
|
|
var nodeIds = _.map(this._selectedNodes(), function(node) { return node.id; }.bind(this)); |
|
802
|
|
|
|
|
803
|
|
|
// case [1]: find the correct node group, whose node ids match the selected ids |
|
804
|
|
|
// (i.e. the user has to select all members of a NodeGroup to remove the NodeGroup) |
|
805
|
|
|
_.each(this.graph.nodeGroups, function(ng) { |
|
806
|
|
|
var ngIds = ng.nodeIds(); |
|
807
|
|
|
// math recap: two sets are equal, when both their differences are zero length |
|
808
|
|
|
if (jQuery(ngIds).not(nodeIds).length === 0 && jQuery(nodeIds).not(ngIds).length === 0) { |
|
809
|
|
|
this.graph.deleteNodeGroup(ng); |
|
810
|
|
|
return true; |
|
811
|
|
|
} |
|
812
|
|
|
}.bind(this)); |
|
813
|
|
|
|
|
814
|
|
|
// case [2]: the user selected NodeGroups, (s)he wants to delete, do him/her the favor to delete them |
|
815
|
|
|
_.each(this._selectedNodeGroups(), this.graph.deleteNodeGroup.bind(this.graph)); |
|
816
|
|
|
|
|
817
|
|
|
return false; |
|
818
|
|
|
}, |
|
819
|
|
|
|
|
820
|
|
|
/** |
|
821
|
|
|
* Method: _boundingBoxForNodes |
|
822
|
|
|
* Returns the (smallest) bounding box for the given nodes by accessing their x and y coordinates and |
|
823
|
|
|
* finding the minimum and maximum. Used by _paste() to place the copy nicely. |
|
824
|
|
|
* |
|
825
|
|
|
* Returns: |
|
826
|
|
|
* An {Object} containing the 'width' and 'height' keys of the calculated bounding box. |
|
827
|
|
|
*/ |
|
828
|
|
|
|
|
829
|
|
|
_boundingBoxForNodes: function(nodes) { |
|
830
|
|
|
var topMostNode = { 'y': Number.MAX_VALUE }; |
|
831
|
|
|
var leftMostNode = { 'x': Number.MAX_VALUE }; |
|
832
|
|
|
var bottomMostNode = { 'y': 0 }; |
|
833
|
|
|
var rightMostNode = { 'x': 0 }; |
|
834
|
|
|
|
|
835
|
|
|
_.each(nodes, function(node) { |
|
836
|
|
|
if (node.y < topMostNode.y) { topMostNode = node; } |
|
837
|
|
|
if (node.x < leftMostNode.x) { leftMostNode = node; } |
|
838
|
|
|
if (node.y > bottomMostNode.y) { bottomMostNode = node; } |
|
839
|
|
|
if (node.x > rightMostNode.x) { rightMostNode = node; } |
|
840
|
|
|
}.bind(this)); |
|
841
|
|
|
|
|
842
|
|
|
return { |
|
843
|
|
|
'width': rightMostNode.x - leftMostNode.x, |
|
844
|
|
|
'height': bottomMostNode.y - topMostNode.y |
|
845
|
|
|
}; |
|
846
|
|
|
}, |
|
847
|
|
|
|
|
848
|
|
|
|
|
849
|
|
|
/** |
|
850
|
|
|
* Group: Clipboard Handling |
|
851
|
|
|
*/ |
|
852
|
|
|
|
|
853
|
|
|
/** |
|
854
|
|
|
* Method: _updateClipboard |
|
855
|
|
|
* Saves the given clipboardDict either to html5 Local Storage or at least to the Graph's _clipboard var |
|
856
|
|
|
* as JSON string. |
|
857
|
|
|
* |
|
858
|
|
|
* Parameters: |
|
859
|
|
|
* {Object} clipboardDict - JSON object to be stored |
|
860
|
|
|
* |
|
861
|
|
|
* Returns: |
|
862
|
|
|
* This {<Editor>} instance for chaining. |
|
863
|
|
|
*/ |
|
864
|
|
|
_updateClipboard: function(clipboardDict) { |
|
865
|
|
|
var clipboardString = JSON.stringify(clipboardDict); |
|
866
|
|
|
if (typeof window.Storage !== 'undefined') { |
|
867
|
|
|
localStorage['clipboard_' + this.graph.kind] = clipboardString; |
|
868
|
|
|
} else { // fallback (doesn't work cross-tab) |
|
869
|
|
|
this._clipboard = clipboardString; |
|
870
|
|
|
} |
|
871
|
|
|
|
|
872
|
|
|
return this; |
|
873
|
|
|
}, |
|
874
|
|
|
|
|
875
|
|
|
/** |
|
876
|
|
|
* Method: _getClipboard |
|
877
|
|
|
* Returns the current clipboard either from html5 Local Storage or from the Graph's _clipboard var as |
|
878
|
|
|
* JSON. |
|
879
|
|
|
* |
|
880
|
|
|
* Returns: |
|
881
|
|
|
* The clipboard contents as {Object}. |
|
882
|
|
|
*/ |
|
883
|
|
|
_getClipboard: function() { |
|
884
|
|
|
if (typeof window.Storage !== 'undefined' && |
|
885
|
|
|
typeof localStorage['clipboard_' + this.graph.kind] !== 'undefined') { |
|
886
|
|
|
return JSON.parse(localStorage['clipboard_' + this.graph.kind]); |
|
887
|
|
|
} else if (typeof this._clipboard !== 'undefined') { |
|
888
|
|
|
return JSON.parse(this._clipboard); |
|
889
|
|
|
} else { |
|
890
|
|
|
return false; |
|
891
|
|
|
} |
|
892
|
|
|
}, |
|
893
|
|
|
|
|
894
|
|
|
/** |
|
895
|
|
|
* Group: Keyboard Interaction |
|
896
|
|
|
*/ |
|
897
|
|
|
|
|
898
|
|
|
/** |
|
899
|
|
|
* Method: _arrowKeyPressed |
|
900
|
|
|
* Event callback for handling presses of arrow keys. Will move the selected nodes in the given direction |
|
901
|
|
|
* by and offset equal to the canvas' grid size. The movement is not done when an input field is currently |
|
902
|
|
|
* in focus. |
|
903
|
|
|
* |
|
904
|
|
|
* Parameters: |
|
905
|
|
|
* {jQuery::Event} event - the issued delete keypress event |
|
906
|
|
|
* {Number} xDirection - signum of the arrow key's x direction movement (e.g. -1 for left) |
|
907
|
|
|
* {Number} yDirection - signum of the arrow key's y direction movement (e.g. 1 for down) |
|
908
|
|
|
* |
|
909
|
|
|
* Return: |
|
910
|
|
|
* This {<Editor>} instance for chaining |
|
911
|
|
|
*/ |
|
912
|
|
|
_arrowKeyPressed: function(event, xDirection, yDirection) { |
|
913
|
|
|
if (jQuery(event.target).is('input, textarea')) return this; |
|
914
|
|
|
|
|
915
|
|
|
var selectedNodes = '.' + Factory.getModule('Config').Classes.SELECTED + '.' + Factory.getModule('Config').Classes.NODE; |
|
916
|
|
|
jQuery(selectedNodes).each(function(index, element) { |
|
917
|
|
|
var node = jQuery(element).data(Factory.getModule('Config').Keys.NODE); |
|
918
|
|
|
node.moveBy({ |
|
919
|
|
|
x: xDirection * Canvas.gridSize, |
|
920
|
|
|
y: yDirection * Canvas.gridSize |
|
921
|
|
|
}); |
|
922
|
|
|
}.bind(this)); |
|
923
|
|
|
|
|
924
|
|
|
jQuery(document).trigger(Factory.getModule('Config').Events.NODES_MOVED); |
|
925
|
|
|
|
|
926
|
|
|
return this; |
|
927
|
|
|
}, |
|
928
|
|
|
|
|
929
|
|
|
/** |
|
930
|
|
|
* Method: _deletePressed |
|
931
|
|
|
* Event callback for handling delete key presses. Will remove the selected elements by calling |
|
932
|
|
|
* _deleteSelection as long as no input field is currently focused (allows e.g. character removal in |
|
933
|
|
|
* properties). |
|
934
|
|
|
* |
|
935
|
|
|
* Parameters: |
|
936
|
|
|
* {jQuery::Event} event - the issued delete keypress event |
|
937
|
|
|
* |
|
938
|
|
|
* Returns: |
|
939
|
|
|
* This {<Editor>} instance for chaining |
|
940
|
|
|
*/ |
|
941
|
|
|
_deletePressed: function(event) { |
|
942
|
|
|
// prevent that node is being deleted when we edit an input field |
|
943
|
|
|
if (jQuery(event.target).is('input, textarea')) return this; |
|
944
|
|
|
event.preventDefault(); |
|
945
|
|
|
this._deleteSelection(); |
|
946
|
|
|
return this; |
|
947
|
|
|
}, |
|
948
|
|
|
|
|
949
|
|
|
/** |
|
950
|
|
|
* Method: _escapePressed |
|
951
|
|
|
* Event callback for handling escape key presses. Will deselect any selected nodes and edges by calling |
|
952
|
|
|
* _deselectAll(). |
|
953
|
|
|
* |
|
954
|
|
|
* Parameters: |
|
955
|
|
|
* {jQuery::Event} event - the issued escape keypress event |
|
956
|
|
|
* |
|
957
|
|
|
* Returns: |
|
958
|
|
|
* This {<Editor>} instance for chaining |
|
959
|
|
|
*/ |
|
960
|
|
|
_escapePressed: function(event) { |
|
961
|
|
|
event.preventDefault(); |
|
962
|
|
|
this._deselectAll(event); |
|
963
|
|
|
return this; |
|
964
|
|
|
}, |
|
965
|
|
|
|
|
966
|
|
|
/** |
|
967
|
|
|
* Method: _selectAllPressed |
|
968
|
|
|
* Event callback for handling a select all (CTRL/CMD + A) key presses. |
|
969
|
|
|
* |
|
970
|
|
|
* Parameters: |
|
971
|
|
|
* {jQuery::Event} event - the issued select all keypress event |
|
972
|
|
|
* |
|
973
|
|
|
* Returns: |
|
974
|
|
|
* This {<Editor>} instance for chaining. |
|
975
|
|
|
*/ |
|
976
|
|
|
_selectAllPressed: function(event) { |
|
977
|
|
|
if (jQuery(event.target).is('input, textarea')) return this; |
|
978
|
|
|
event.preventDefault(); |
|
979
|
|
|
this._selectAll(event); |
|
980
|
|
|
return this; |
|
981
|
|
|
}, |
|
982
|
|
|
|
|
983
|
|
|
/** |
|
984
|
|
|
* Method: _copyPressed |
|
985
|
|
|
* Event callback for handling a copy (CTRL/CMD + C) key press. Will copy selected nodes by serializing |
|
986
|
|
|
* and saving them to HTML5 Local Storage or the _clipboard var by calling _copySelection(). |
|
987
|
|
|
* |
|
988
|
|
|
* Parameters: |
|
989
|
|
|
* {jQuery::Event} event - the issued select all keypress event |
|
990
|
|
|
* |
|
991
|
|
|
* Returns: |
|
992
|
|
|
* This {<Editor>} instance for chaining. |
|
993
|
|
|
*/ |
|
994
|
|
|
_copyPressed: function(event) { |
|
995
|
|
|
if (jQuery(event.target).is('input, textarea')) return this; |
|
996
|
|
|
event.preventDefault(); |
|
997
|
|
|
this._copySelection(); |
|
998
|
|
|
return this; |
|
999
|
|
|
}, |
|
1000
|
|
|
|
|
1001
|
|
|
/** |
|
1002
|
|
|
* Method: _pastePressed |
|
1003
|
|
|
* Event callback for handling a paste (CTRL/CMD + V) key press. Will paste previously copied nodes from |
|
1004
|
|
|
* HTML% Local Storage or the _clipboard var by calling _paste(). |
|
1005
|
|
|
* |
|
1006
|
|
|
* Parameters: |
|
1007
|
|
|
* {jQuery::Event} event - the issued select all keypress event |
|
1008
|
|
|
* |
|
1009
|
|
|
* Returns: |
|
1010
|
|
|
* This {<Editor>} instance for chaining. |
|
1011
|
|
|
*/ |
|
1012
|
|
|
_pastePressed: function(event) { |
|
1013
|
|
|
if (jQuery(event.target).is('input, textarea')) return this; |
|
1014
|
|
|
event.preventDefault(); |
|
1015
|
|
|
this._paste(); |
|
1016
|
|
|
return this; |
|
1017
|
|
|
}, |
|
1018
|
|
|
|
|
1019
|
|
|
/** |
|
1020
|
|
|
* Method: _cutPressed |
|
1021
|
|
|
* Event callback for handling a cut (CTRL/CMD + X) key press. Will delete and copy selected nodes by |
|
1022
|
|
|
* calling _cutSelection(). |
|
1023
|
|
|
* |
|
1024
|
|
|
* Parameters: |
|
1025
|
|
|
* {jQuery::Event} event - the issued select all keypress event |
|
1026
|
|
|
* |
|
1027
|
|
|
* Returns: |
|
1028
|
|
|
* This {<Editor>} instance for chaining. |
|
1029
|
|
|
*/ |
|
1030
|
|
|
_cutPressed: function(event) { |
|
1031
|
|
|
if (jQuery(event.target).is('input, textarea')) return this; |
|
1032
|
|
|
event.preventDefault(); |
|
1033
|
|
|
this._cutSelection(); |
|
1034
|
|
|
return this; |
|
1035
|
|
|
}, |
|
1036
|
|
|
|
|
1037
|
|
|
/** |
|
1038
|
|
|
* Group: Print Offset Calculation |
|
1039
|
|
|
*/ |
|
1040
|
|
|
|
|
1041
|
|
|
/** |
|
1042
|
|
|
* Method: _calculateContentOffsets |
|
1043
|
|
|
* Calculates the minimal offsets from top and left among all elements displayed on the canvas. |
|
1044
|
|
|
* |
|
1045
|
|
|
* Returns: |
|
1046
|
|
|
* An {Object} containing the minimal top ('top') and minimal left ('left') offset to the browser borders. |
|
1047
|
|
|
*/ |
|
1048
|
|
|
_calculateContentOffsets: function() { |
|
1049
|
|
|
var minLeftOffset = window.Infinity; |
|
1050
|
|
|
var minTopOffset = window.Infinity; |
|
1051
|
|
|
|
|
1052
|
|
|
jQuery('.' + Factory.getModule('Config').Classes.NODE + ', .' + Factory.getModule('Config').Classes.MIRROR).each(function(index, element) { |
|
1053
|
|
|
var offset = jQuery(element).offset(); |
|
1054
|
|
|
minLeftOffset = Math.min(minLeftOffset, offset.left); |
|
1055
|
|
|
minTopOffset = Math.min(minTopOffset, offset.top); |
|
1056
|
|
|
}); |
|
1057
|
|
|
|
|
1058
|
|
|
return { |
|
1059
|
|
|
'top': minTopOffset, |
|
1060
|
|
|
'left': minLeftOffset |
|
1061
|
|
|
}; |
|
1062
|
|
|
}, |
|
1063
|
|
|
|
|
1064
|
|
|
/** |
|
1065
|
|
|
* Method: _updatePrintOffsets |
|
1066
|
|
|
* Calculate the minimal offsets of elements on the canvas and updates the print stylesheet so that it will |
|
1067
|
|
|
* compensate these offsets while printing (using CSS transforms). This update is triggered every time a |
|
1068
|
|
|
* node was added, removed or moved on the canvas. |
|
1069
|
|
|
*/ |
|
1070
|
|
|
_updatePrintOffsets: function(event) { |
|
1071
|
|
|
var minOffsets = this._calculateContentOffsets(); |
|
1072
|
|
|
|
|
1073
|
|
|
if (minOffsets.top == this._currentMinNodeOffsets.top && |
|
1074
|
|
|
minOffsets.left == this._currentMinNodeOffsets.left) { |
|
1075
|
|
|
// nothing changed |
|
1076
|
|
|
return; |
|
1077
|
|
|
} |
|
1078
|
|
|
|
|
1079
|
|
|
// replace the style text with the new transformation style |
|
1080
|
|
|
this._nodeOffsetPrintStylesheet.text(this._nodeOffsetStylesheetTemplate({ |
|
1081
|
|
|
'x': -minOffsets.left + 1, // add a tolerance pixel to avoid cut edges, |
|
1082
|
|
|
'y': -minOffsets.top + 1 |
|
1083
|
|
|
})); |
|
1084
|
|
|
} |
|
1085
|
|
|
}); |
|
1086
|
|
|
}); |
|
1087
|
|
|
|
troeger /
fuzzed
