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/*
* Activiti Modeler component part of the Activiti project
* Copyright 2005-2014 Alfresco Software, Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
var KISBPM = KISBPM || {};
/** Inspired by https://github.com/krasimir/EventBus/blob/master/src/EventBus.js */
KISBPM.eventBus = {
/** Event fired when the editor is loaded and ready */
EVENT_TYPE_EDITOR_READY: 'event-type-editor-ready',
/** Event fired when a selection is made on the canvas. */
EVENT_TYPE_SELECTION_CHANGE: 'event-type-selection-change',
/** Event fired when a toolbar button has been clicked. */
EVENT_TYPE_TOOLBAR_BUTTON_CLICKED: 'event-type-toolbar-button-clicked',
/** Event fired when a stencil item is dropped on the canvas. */
EVENT_TYPE_ITEM_DROPPED: 'event-type-item-dropped',
/** Event fired when a property value is changed. */
EVENT_TYPE_PROPERTY_VALUE_CHANGED: 'event-type-property-value-changed',
/** Event fired on double click in canvas. */
EVENT_TYPE_DOUBLE_CLICK: 'event-type-double-click',
/** Event fired on a mouse out */
EVENT_TYPE_MOUSE_OUT: 'event-type-mouse-out',
/** Event fired on a mouse over */
EVENT_TYPE_MOUSE_OVER: 'event-type-mouse-over',
/** Event fired when a model is saved. */
EVENT_TYPE_MODEL_SAVED: 'event-type-model-saved',
/** Event fired when the quick menu buttons should be hidden. */
EVENT_TYPE_HIDE_SHAPE_BUTTONS: 'event-type-hide-shape-buttons',
/** A mapping for storing the listeners*/
listeners: {},
/** The Oryx editor, which is stored locally to send events to */
editor: null,
/**
* Add an event listener to the event bus, listening to the event with the provided type.
* Type and callback are mandatory parameters.
*
* Provide scope parameter if it is important that the callback is executed
* within a specific scope.
*/
addListener: function (type, callback, scope) {
// Add to the listeners map
if (typeof this.listeners[type] !== "undefined") {
this.listeners[type].push({scope: scope, callback: callback});
} else {
this.listeners[type] = [
{scope: scope, callback: callback}
];
}
},
/**
* Removes the provided event listener.
*/
removeListener: function (type, callback, scope) {
if (typeof this.listeners[type] != "undefined") {
var numOfCallbacks = this.listeners[type].length;
var newArray = [];
for (var i = 0; i < numOfCallbacks; i++) {
var listener = this.listeners[type][i];
if (listener.scope === scope && listener.callback === callback) {
// Do nothing, this is the listener and doesn't need to survive
} else {
newArray.push(listener);
}
}
this.listeners[type] = newArray;
}
},
hasListener:function(type, callback, scope) {
if(typeof this.listeners[type] != "undefined") {
var numOfCallbacks = this.listeners[type].length;
if(callback === undefined && scope === undefined){
return numOfCallbacks > 0;
}
for(var i=0; i<numOfCallbacks; i++) {
var listener = this.listeners[type][i];
if(listener.scope == scope && listener.callback == callback) {
return true;
}
}
}
return false;
},
/**
* Dispatch an event to all event listeners registered to that specific type.
*/
dispatch:function(type, event) {
if(typeof this.listeners[type] != "undefined") {
var numOfCallbacks = this.listeners[type].length;
for(var i=0; i<numOfCallbacks; i++) {
var listener = this.listeners[type][i];
if(listener && listener.callback) {
listener.callback.apply(listener.scope, [event]);
}
}
}
},
dispatchOryxEvent: function(event, uiObject) {
KISBPM.eventBus.editor.handleEvents(event, uiObject);
}
};