com.google.gwt.query.client.plugins.events.GqEvent Maven / Gradle / Ivy
/*
* Copyright 2014, The gwtquery team.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.query.client.plugins.events;
import com.google.gwt.dom.client.Element;
import com.google.gwt.query.client.GQuery;
import com.google.gwt.user.client.Event;
/**
* This object allows you to have a full copy of the original Event and
* implements some useful method of the jQuery event model.
*
* This is also useful in Internet Explorer because it use the same javascript
* object to fire MouseDownEvent, MouseMoveEvent or MouseStopEvent on the same
* element. So, we cannot keep a copy of the MouseDownEvent during a dragging
* for example.
*
* Be Careful : the methods preventDefault() and stopPropagation must be called directly on the
* original event.
*
*/
public class GqEvent extends Event {
// Gwt Events class has not this event defined,
// so we have to select one power of 2 which is unused in Event class
public static int ONSUBMIT = 0x10000000;
public static int ONRESIZE = 0x8000000;
/**
* Create a new {@link GqEvent} by copying the originalEvent.
*/
public static GqEvent create(Event originalEvent) {
GqEvent gQueryEvent = createObject().cast();
copy(originalEvent, gQueryEvent);
return gQueryEvent;
}
private static native void copy(
Event originalEvent, GqEvent gQueryEvent) /*-{
for ( var field in originalEvent) {
gQueryEvent[field] = originalEvent[field];
}
gQueryEvent.originalEvent = originalEvent;
}-*/;
protected GqEvent() {
}
/**
* Return the original event (the one created by the browser).
*/
public final native Event getOriginalEvent() /*-{
return this.originalEvent;
}-*/;
public final native void setCurrentElementTarget(Element e) /*-{
this.currentTarget = e;
// ie don't have a currentEventTarget field on event
try{
@com.google.gwt.dom.client.DOMImplTrident::currentEventTarget = e;
}catch(e){}
}-*/;
/**
* Tell whether ctrl or cmd key is pressed.
*
*/
public final boolean isMetaKeyPressed() {
return getMetaKey() || getCtrlKey();
}
/**
* The mouse position relative to the left edge of the document.
*
*/
public final int pageX() {
if (getTouches() != null && getTouches().length() > 0) {
return getTouches().get(0).getPageX();
} else {
return getClientX() + GQuery.document.getScrollLeft();
}
}
/**
* The mouse position relative to the top edge of the document.
*
*/
public final int pageY() {
if (getTouches() != null && getTouches().length() > 0) {
return getTouches().get(0).getPageY();
} else {
return getClientY() + GQuery.document.getScrollTop();
}
}
public static final GqEvent as(Event e) {
return e.cast();
}
}