rwt.scripting.EventBinding.js Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2012, 2018 EclipseSource and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
(function(){
rwt.define( "rwt.scripting", {} );
var WRAPPER_REGISTRY = "rwt.scripting.EventBinding.WrapperRegistry";
// TODO : better name?
// TODO [rst] Define directly using rwt.define, remove surrounding function scope
rwt.scripting.EventBinding = {
addListener : function( widget, eventType, targetFunction ) {
this._checkEventType( eventType );
var wrapperList = this._getWrapperList( widget, eventType, targetFunction );
var nativeType = this._getNativeEventType( widget, eventType );
var nativeSource = this._getNativeEventSource( widget, eventType );
var wrappedListener = this._wrapListener( widget, eventType, targetFunction );
nativeSource.addEventListener( nativeType, wrappedListener, window );
wrapperList.push( wrappedListener );
},
removeListener : function( widget, eventType, targetFunction ) {
var wrapperList = this._getWrapperList( widget, eventType, targetFunction );
var nativeType = this._getNativeEventType( widget, eventType );
var nativeSource = this._getNativeEventSource( widget, eventType );
var wrappedListener = wrapperList.pop();
if( wrappedListener ) {
nativeSource.removeEventListener( nativeType, wrappedListener, window );
}
},
_wrapListener : function( widget, eventType, targetFunction ) {
return function( nativeEvent ) {
try {
var eventProxy = new rwt.scripting.EventProxy( SWT[ eventType ], widget, nativeEvent );
var wrappedEventProxy = rwt.scripting.EventProxy.wrapAsProto( eventProxy );
targetFunction( wrappedEventProxy );
rwt.scripting.EventProxy.postProcessEvent( eventProxy, wrappedEventProxy, nativeEvent );
rwt.scripting.EventProxy.disposeEventProxy( eventProxy );
} catch( ex ) {
var msg = "Error in scripting event type ";
throw new Error( msg + eventType + ": " + ( ex.message ? ex.message : ex ) );
}
};
},
_getWrapperList : function( widget, eventType, targetFunction ) {
var wrapperRegistry = widget.getUserData( WRAPPER_REGISTRY );
if( !wrapperRegistry ) {
wrapperRegistry = {};
widget.setUserData( WRAPPER_REGISTRY, wrapperRegistry );
}
var key = eventType + ":" + rwt.qx.Object.toHashCode( targetFunction );
if( wrapperRegistry[ key ] == null ) {
wrapperRegistry[ key ] = [];
}
return wrapperRegistry[ key ];
},
_getNativeEventSource : function( source, eventType ) {
var result = source;
switch( source.classname + ":" + eventType ) {
case "rwt.widgets.List:Selection":
result = source.getManager();
break;
case "rwt.widgets.Spinner:Modify":
result = source._textfield;
break;
case "rwt.widgets.Combo:Modify":
case "rwt.widgets.Combo:Verify":
result = source._field;
break;
}
return result;
},
_getNativeEventType : function( source, eventType ) {
var map = this._eventTypeMapping;
var result = "";
if( map[ source.classname ] && map[ source.classname ][ eventType ] ) {
result = map[ source.classname ][ eventType ];
} else {
result = map[ "*" ][ eventType ];
}
return result;
},
_checkEventType : function( type ) {
if( typeof SWT[ type ] === "string" ) {
return;
}
throw new Error( "Unkown event type " + type );
},
_eventTypeMapping : {
"*" : {
/**
* @event
* @description Sent when a key is pressed
* @name Control#KeyDown
* @param {Event} event
* @see SWT.KeyDown
*/
"KeyDown" : "keypress",
/**
* @event
* @description Sent when a key is released
* @name Control#KeyUp
* @param {Event} event
* @see SWT.KeyUp
*/
"KeyUp" : "keyup",
/**
* @event
* @description Sent when a mouse button is pressed
* @name Control#MouseDown
* @param {Event} event
* @see SWT.MouseDown
*/
"MouseDown" : "mousedown",
/**
* @event
* @description Sent when a mouse button is released
* @name Control#MouseUp
* @param {Event} event
* @see SWT.MouseUp
*/
"MouseUp" : "mouseup",
/**
* @event
* @description Sent when the mouse pointer is moved
* @name Control#MouseMove
* @param {Event} event
* @see SWT.MouseMove
*/
"MouseMove" : "mousemove",
/**
* @event
* @description Sent when the mouse pointer enters the widget
* @name Control#MouseEnter
* @param {Event} event
* @see SWT.MouseEnter
*/
"MouseEnter" : "mouseover",
/**
* @event
* @description Sent when the mouse pointer exits the widget
* @name Control#MouseExit
* @param {Event} event
* @see SWT.MouseExit
*/
"MouseExit" : "mouseout",
/**
* @event
* @description Sent when the mouse wheel is moved
* @name Control#MouseWheel
* @param {Event} event
* @see SWT.MouseWheel
*/
"MouseWheel" : "mousewheel",
/**
* @event
* @description Sent when a mouse button is clicked twice
* @name Control#MouseDoubleClick
* @param {Event} event
* @see SWT.MouseDoubleClick
*/
"MouseDoubleClick" : "dblclick",
/**
* @event
* @description Sent when the widget is painted
* @name Control#Paint
* @param {Event} event
* @see SWT.Paint
*/
"Paint" : "paint",
/**
* @event
* @description Sent when the widget gains focus
* @name Control#FocusIn
* @param {Event} event
* @see SWT.FocusIn
*/
"FocusIn" : "focus",
/**
* @event
* @description Sent when the widget looses focus
* @name Control#FocusOut
* @param {Event} event
* @see SWT.FocusOut
*/
"FocusOut" : "blur",
/**
* @event
* @description Sent when the widget appears
* @name Control#Show
* @param {Event} event
* @see SWT.Show
*/
"Show" : "appear",
/**
* @event
* @description Sent when the widget is hidden
* @name Control#Hide
* @param {Event} event
* @see SWT.Hide
*/
"Hide" : "disappear",
/**
* @event
* @description Sent when the widget is disposed. The event is fired before widget is
* detached from the widget hierarchy and removed from DOM
* @name Control#Dispose
* @param {Event} event
* @see SWT.Dispose
*/
"Dispose" : "beforeDispose"
},
"rwt.widgets.Scale" : {
/**
* @event
* @description Sent when the widget selection is changed
* @name Scale#Selection
* @param {Event} event
* @see SWT.Selection
*/
"Selection" : "selectionChanged"
},
"rwt.widgets.Slider" : {
/**
* @event
* @description Sent when the widget selection is changed
* @name Slider#Selection
* @param {Event} event
* @see SWT.Selection
*/
"Selection" : "selectionChanged"
},
"rwt.widgets.Composite" : {
/**
* @event
* @description Sent when the widget selection changes size
* @name Composite#Resize
* @param {Event} event
* @see SWT.Resize
*/
"Resize" : "clientAreaChanged"
},
"rwt.widgets.Button" : {
/**
* @event
* @description Sent when the widget is selected
* @name Button#Selection
* @param {Event} event
* @see SWT.Selection
*/
"Selection" : "execute"
},
"rwt.widgets.Spinner" : {
/**
* @event
* @description Sent when the widget selection is changed
* @name Spinner#Selection
* @param {Event} event
* @see SWT.Selection
*/
"Selection" : "change",
/**
* @event
* @description Sent when the widget text is changed
* @name Spinner#Modify
* @param {Event} event
* @see SWT.Modify
*/
"Modify" : "changeValue"
},
"rwt.widgets.Text" : {
/**
* @event
* @description Sent before the widget text is changed
* @name Text#Verify
* @param {Event} event
* @see SWT.Verify
*/
"Verify" : "input", // TODO [tb] : does currently not react on programatic changes
/**
* @event
* @description Sent when the widget text is changed
* @name Text#Modify
* @param {Event} event
* @see SWT.Modify
*/
"Modify" : "changeValue"
},
"rwt.widgets.Combo" : {
/**
* @event
* @description Sent before the widget text is changed
* @name Combo#Verify
* @param {Event} event
* @see SWT.Verify
*/
"Verify" : "input", // TODO [tb] : does currently not react on programatic changes
/**
* @event
* @description Sent when the widget text is changed
* @name Combo#Modify
* @param {Event} event
* @see SWT.Modify
*/
"Modify" : "changeValue"
}
}
};
}());
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