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|
/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2007 1&1 Internet AG, Germany, http://www.1and1.org
License:
LGPL: http://www.gnu.org/licenses/lgpl.html
EPL: http://www.eclipse.org/org/documents/epl-v10.php
See the LICENSE file in the project's top-level directory for details.
Authors:
* Sebastian Werner (wpbasti)
* Andreas Ecker (ecker)
************************************************************************ */
/* ************************************************************************
#module(ui_core)
#require(qx.event.type.KeyEvent)
#require(qx.event.handler.KeyEventHandler)
#optional(qx.event.handler.DragAndDropHandler)
#optional(qx.manager.object.MenuManager)
#optional(qx.event.handler.FocusHandler)
#optional(qx.manager.object.PopupManager)
#optional(qx.manager.object.ToolTipManager)
************************************************************************ */
/**
* This manager registers and manage all incoming key and mouse events.
*
* @event error {qx.event.type.DataEvent} Fired when an exception was thrown
* when dispatching the event to the listeners. The event's property
* "data" holds the exception.
*/
qx.OO.defineClass("qx.event.handler.EventHandler", qx.core.Target,
function()
{
qx.core.Target.call(this);
// Object Wrapper to Events (Needed for DOM-Events)
var o = this;
// User Events
this.__onmouseevent = function(e) { return o._onmouseevent(e); };
this.__ondragevent = function(e) { return o._ondragevent(e); };
this.__onselectevent = function(e) { return o._onselectevent(e); };
// Window Events
this.__onwindowblur = function(e) { return o._onwindowblur(e); };
this.__onwindowfocus = function(e) { return o._onwindowfocus(e); };
this.__onwindowresize = function(e) { return o._onwindowresize(e); };
// Init Command Interface
this._commands = {};
});
qx.OO.addProperty({ name : "allowClientContextMenu", type : "boolean", defaultValue : false });
qx.OO.addProperty({ name : "allowClientSelectAll", type : "boolean", defaultValue : false });
qx.OO.addProperty({ name : "captureWidget", type : "object", instance : "qx.ui.core.Widget", allowNull : true });
qx.OO.addProperty({ name : "focusRoot", type : "object", instance : "qx.ui.core.Parent", allowNull : true });
qx.Class.mouseEventTypes = [ "mouseover", "mousemove", "mouseout", "mousedown", "mouseup", "click", "dblclick", "contextmenu", qx.core.Client.getInstance().isMshtml() ? "mousewheel" : "DOMMouseScroll" ];
qx.Class.keyEventTypes = [ "keydown", "keypress", "keyup" ];
if (qx.core.Client.getInstance().isGecko())
{
qx.Class.dragEventTypes = [ "dragdrop", "dragover", "dragenter", "dragexit", "draggesture" ];
}
else if (qx.core.Client.getInstance().isMshtml())
{
qx.Class.dragEventTypes = [ "dragend", "dragover", "dragstart", "drag", "dragenter", "dragleave" ];
}
else
{
qx.Class.dragEventTypes = [ "dragstart", "dragdrop", "dragover", "drag", "dragleave", "dragenter", "dragexit", "draggesture" ];
}
/*
---------------------------------------------------------------------------
STATE FLAGS
---------------------------------------------------------------------------
*/
qx.Proto._lastMouseEventType = null;
qx.Proto._lastMouseDown = false;
qx.Proto._lastMouseEventDate = 0;
/*
---------------------------------------------------------------------------
MODIFIERS
---------------------------------------------------------------------------
*/
qx.Proto._modifyCaptureWidget = function(propValue, propOldValue, propData)
{
if (propOldValue) {
propOldValue.setCapture(false);
}
if (propValue) {
propValue.setCapture(true);
}
return true;
}
qx.Proto._modifyFocusRoot = function(propValue, propOldValue, propData)
{
// this.debug("FocusRoot: " + propValue + "(from:" + propOldValue + ")");
if (propOldValue) {
propOldValue.setFocusedChild(null);
}
if (propValue)
{
if (propValue.getFocusedChild() == null) {
propValue.setFocusedChild(propValue);
}
}
return true;
}
/*
---------------------------------------------------------------------------
COMMAND INTERFACE
---------------------------------------------------------------------------
*/
qx.Proto.addCommand = function(vCommand) {
this._commands[vCommand.toHashCode()] = vCommand;
}
qx.Proto.removeCommand = function(vCommand) {
delete this._commands[vCommand.toHashCode()];
}
qx.Proto._checkKeyEventMatch = function(e)
{
var vCommand;
for (var vHash in this._commands)
{
vCommand = this._commands[vHash];
if (vCommand.getEnabled() && vCommand._matchesKeyEvent(e))
{
// allow the user to stop the event
// through the execute event.
if (!vCommand.execute(e.getTarget())) {
e.preventDefault();
}
break;
}
}
}
/*
---------------------------------------------------------------------------
EVENT-MAPPING
---------------------------------------------------------------------------
*/
qx.Proto.attachEvents = function()
{
// Register dom events
this.attachEventTypes(qx.event.handler.EventHandler.mouseEventTypes, this.__onmouseevent);
this.attachEventTypes(qx.event.handler.EventHandler.dragEventTypes, this.__ondragevent);
// Unregister separate handler events
qx.event.handler.KeyEventHandler.getInstance()._attachEvents();
// Register window events
qx.html.EventRegistration.addEventListener(window, "blur", this.__onwindowblur);
qx.html.EventRegistration.addEventListener(window, "focus", this.__onwindowfocus);
qx.html.EventRegistration.addEventListener(window, "resize", this.__onwindowresize);
// Register selection events
document.body.onselect = document.onselectstart = document.onselectionchange = this.__onselectevent;
}
qx.Proto.detachEvents = function()
{
// Unregister dom events
this.detachEventTypes(qx.event.handler.EventHandler.mouseEventTypes, this.__onmouseevent);
this.detachEventTypes(qx.event.handler.EventHandler.dragEventTypes, this.__ondragevent);
// Unregister separate handler events
qx.event.handler.KeyEventHandler.getInstance()._detachEvents();
// Unregister window events
qx.html.EventRegistration.removeEventListener(window, "blur", this.__onwindowblur);
qx.html.EventRegistration.removeEventListener(window, "focus", this.__onwindowfocus);
qx.html.EventRegistration.removeEventListener(window, "resize", this.__onwindowresize);
// Unregister selection events
document.body.onselect = document.onselectstart = document.onselectionchange = null;
}
/*
---------------------------------------------------------------------------
EVENT-MAPPING HELPER
---------------------------------------------------------------------------
*/
qx.Proto.attachEventTypes = function(vEventTypes, vFunctionPointer)
{
try
{
// Gecko is a bit buggy to handle key events on document if not previously focused
// I think they will fix this sometimes, and we should add a version check here.
// Internet Explorer has problems to use 'window', so there we use the 'body' element
// as previously.
var el = qx.core.Client.getInstance().isGecko() ? window : document.body;
for (var i=0, l=vEventTypes.length; i<l; i++) {
qx.html.EventRegistration.addEventListener(el, vEventTypes[i], vFunctionPointer);
}
}
catch(ex)
{
throw new Error("qx.event.handler.EventHandler: Failed to attach window event types: " + vEventTypes + ": " + ex);
}
}
qx.Proto.detachEventTypes = function(vEventTypes, vFunctionPointer)
{
try
{
var el = qx.core.Client.getInstance().isGecko() ? window : document.body;
for (var i=0, l=vEventTypes.length; i<l; i++) {
qx.html.EventRegistration.removeEventListener(el, vEventTypes[i], vFunctionPointer);
}
}
catch(ex)
{
throw new Error("qx.event.handler.EventHandler: Failed to detach window event types: " + vEventTypes + ": " + ex);
}
}
/*
---------------------------------------------------------------------------
HELPER METHODS
---------------------------------------------------------------------------
*/
// BUG: http://xscroll.mozdev.org/
// If your Mozilla was built with an option `--enable-default-toolkit=gtk2',
// it can not return the correct event target for DOMMouseScroll.
qx.Class.getOriginalTargetObject = function(vNode)
{
// Events on the HTML element, when using absolute locations which
// are outside the HTML element. Opera does not seem to fire events
// on the HTML element.
if (vNode == document.documentElement) {
vNode = document.body;
}
// Walk up the tree and search for an qx.ui.core.Widget
while(vNode != null && vNode.qx_Widget == null)
{
try {
vNode = vNode.parentNode;
}
catch(vDomEvent)
{
vNode = null;
}
}
return vNode ? vNode.qx_Widget : null;
}
if (qx.core.Client.getInstance().isWebkit())
{
/**
* extract the target node from a DOM event
* http://www.quirksmode.org/js/events_properties.html
*
* @param vDomEvent {Event}
* @return {Element} the target node
*/
qx.Class.getDomTarget = function(vDomEvent)
{
var vNode = vDomEvent.target || vDomEvent.srcElement;
// Safari takes text nodes as targets for events
if (vNode && (vNode.nodeType == qx.dom.Node.TEXT)) {
vNode = vNode.parentNode;
}
return vNode;
};
}
else if (qx.core.Client.getInstance().isMshtml())
{
/**
* extract the target node from a DOM event
* http://www.quirksmode.org/js/events_properties.html
*
* @param vDomEvent {Event}
* @return {Element} the target node
*/
qx.Class.getDomTarget = function(vDomEvent) {
return vDomEvent.target || vDomEvent.srcElement;
};
}
else
{
/**
* extract the target node from a DOM event
* http://www.quirksmode.org/js/events_properties.html
*
* @param vDomEvent {Event}
* @return {Element} the target node
*/
qx.Class.getDomTarget = function(vDomEvent) {
return vDomEvent.target;
};
}
qx.Class.getOriginalTargetObjectFromEvent = function(vDomEvent, vWindow)
{
var vNode = qx.event.handler.EventHandler.getDomTarget(vDomEvent);
// Especially to fix key events.
// 'vWindow' is the window reference then
if (vWindow)
{
var vDocument = vWindow.document;
if (vNode == vWindow || vNode == vDocument || vNode == vDocument.documentElement || vNode == vDocument.body) {
return vDocument.body.qx_Widget;
}
}
return qx.event.handler.EventHandler.getOriginalTargetObject(vNode);
}
qx.Class.getRelatedOriginalTargetObjectFromEvent = function(vDomEvent) {
return qx.event.handler.EventHandler.getOriginalTargetObject(vDomEvent.relatedTarget || (vDomEvent.type == "mouseover" ? vDomEvent.fromElement : vDomEvent.toElement));
}
qx.Class.getTargetObject = function(vNode, vObject, allowDisabled)
{
if (!vObject)
{
var vObject = qx.event.handler.EventHandler.getOriginalTargetObject(vNode);
if (!vObject) {
return null;
}
}
// Search parent tree
while(vObject)
{
// Break if current object is disabled -
// event should be ignored then.
if (!allowDisabled && !vObject.getEnabled()) {
return null;
}
// If object is anonymous, search for
// first parent which is not anonymous
// and not disabled
if (!vObject.getAnonymous()) {
break;
}
vObject = vObject.getParent();
}
return vObject;
};
qx.Class.getTargetObjectFromEvent = function(vDomEvent) {
return qx.event.handler.EventHandler.getTargetObject(qx.event.handler.EventHandler.getDomTarget(vDomEvent));
};
qx.Class.getRelatedTargetObjectFromEvent = function(vDomEvent) {
var target = vDomEvent.relatedTarget;
if (!target) {
if (vDomEvent.type == "mouseover") {
target = vDomEvent.fromElement
} else {
target = vDomEvent.toElement
}
}
return qx.event.handler.EventHandler.getTargetObject(target);
};
/**
* stops further propagation of the event
*
* @param vDomEvent {Element} DOM event object
*/
qx.Class.stopDomEvent = function(vDomEvent) {};
if (qx.core.Client.getInstance().isMshtml())
{
qx.Class.stopDomEvent = function(vDomEvent) {
vDomEvent.returnValue = false;
}
}
else
{
qx.Class.stopDomEvent = function(vDomEvent)
{
vDomEvent.preventDefault();
vDomEvent.returnValue = false;
}
};
/*
---------------------------------------------------------------------------
KEY EVENTS
---------------------------------------------------------------------------
*/
qx.Proto._onkeyevent_post = function(vDomEvent, vType, vKeyCode, vCharCode, vKeyIdentifier)
{
var vDomTarget = qx.event.handler.EventHandler.getDomTarget(vDomEvent);
// Find current active qooxdoo object
var vFocusRoot = this.getFocusRoot();
var vTarget = this.getCaptureWidget() || (vFocusRoot == null ? null : vFocusRoot.getActiveChild());
if (vTarget == null || !vTarget.getEnabled()) {
return false;
}
var vDomEventTarget = vTarget.getElement();
// Hide Menus
switch(vKeyIdentifier)
{
case "Escape":
case "Tab":
if (qx.OO.isAvailable("qx.manager.object.MenuManager")) {
qx.manager.object.MenuManager.getInstance().update(vTarget, vType);
}
break;
}
// TODO: Move this to KeyEvent?
// Prohibit CTRL+A
if (!this.getAllowClientSelectAll())
{
if (vDomEvent.ctrlKey && vKeyIdentifier == "A")
{
switch(vDomTarget.tagName.toLowerCase())
{
case "input":
case "textarea":
case "iframe":
break;
default:
qx.event.handler.EventHandler.stopDomEvent(vDomEvent);
}
}
}
// Create Event Object
var vKeyEventObject = new qx.event.type.KeyEvent(vType, vDomEvent, vDomTarget, vTarget, null, vKeyCode, vCharCode, vKeyIdentifier);
// Check for commands
if (vDomEvent.type == "keydown") {
this._checkKeyEventMatch(vKeyEventObject);
}
try {
// Starting Objects Internal Event Dispatcher
// This handles the real event action
vTarget.dispatchEvent(vKeyEventObject);
// Send event to qx.event.handler.DragAndDropHandler
if (qx.OO.isAvailable("qx.event.handler.DragAndDropHandler")) {
qx.event.handler.DragAndDropHandler.getInstance().handleKeyEvent(vKeyEventObject);
}
} catch (ex) {
this.error("Failed to dispatch key event", ex);
this.createDispatchDataEvent("error", ex);
}
// Cleanup Event Object
vKeyEventObject.dispose();
// Flush Queues
qx.ui.core.Widget.flushGlobalQueues();
}
/*
---------------------------------------------------------------------------
MOUSE EVENTS
---------------------------------------------------------------------------
*/
/*!
This one handle all mouse events
When a user double clicks on a qx.ui.core.Widget the
order of the mouse events is the following:
1. mousedown
2. mouseup
3. click
4. mousedown
5. mouseup
6. click
7. dblclick
*/
if(qx.core.Client.getInstance().isMshtml())
{
qx.Proto._onmouseevent = function(vDomEvent)
{
qx.core.Init.getInstance().getComponent().preload();
if(!vDomEvent) {
vDomEvent = window.event;
}
var vDomTarget = qx.event.handler.EventHandler.getDomTarget(vDomEvent);
var vType = vDomEvent.type;
if(vType == "mousemove")
{
if (this._mouseIsDown && vDomEvent.button == 0)
{
this._onmouseevent_post(vDomEvent, "mouseup");
this._mouseIsDown = false;
}
}
else
{
if(vType == "mousedown")
{
this._mouseIsDown = true;
}
else if(vType == "mouseup")
{
this._mouseIsDown = false;
}
// Fix MSHTML Mouseup, should be after a normal click or contextmenu event, like Mozilla does this
if(vType == "mouseup" && !this._lastMouseDown && ((new Date).valueOf() - this._lastMouseEventDate) < 250)
{
this._onmouseevent_post(vDomEvent, "mousedown");
}
// Fix MSHTML Doubleclick, should be after a normal click event, like Mozilla does this
else if(vType == "dblclick" && this._lastMouseEventType == "mouseup" && ((new Date).valueOf() - this._lastMouseEventDate) < 250)
{
this._onmouseevent_post(vDomEvent, "click");
}
switch(vType)
{
case "mousedown":
case "mouseup":
case "click":
case "dblclick":
case "contextmenu":
this._lastMouseEventType = vType;
this._lastMouseEventDate = (new Date).valueOf();
this._lastMouseDown = vType == "mousedown";
}
}
this._onmouseevent_post(vDomEvent, vType, vDomTarget);
}
}
else
{
qx.Proto._onmouseevent = function(vDomEvent)
{
qx.core.Init.getInstance().getComponent().preload();
var vDomTarget = qx.event.handler.EventHandler.getDomTarget(vDomEvent);
var vType = vDomEvent.type;
switch(vType)
{
case "DOMMouseScroll":
// normalize mousewheel event
vType = "mousewheel";
break;
case "click":
case "dblclick":
// ignore click or dblclick events with other then the left mouse button
if (vDomEvent.which !== 1) {
return;
}
}
this._onmouseevent_post(vDomEvent, vType, vDomTarget);
}
}
/*!
Fixes browser quirks with 'click' detection
Firefox 1.5.0.6: The DOM-targets are different. The click event only fires, if the target of the
mousedown is the same than with the mouseup. If the content moved away, the click isn't fired.
Internet Explorer 6.0: The DOM-targets are identical and the click fires fine.
Opera 9.01: The DOM-targets are different, but the click fires fine. Fires click successfull,
even if the content under the cursor was moved away.
*/
if (qx.core.Client.getInstance().isGecko())
{
qx.Proto._onmouseevent_click_fix = function(vDomTarget, vType, vDispatchTarget)
{
var vReturn = false;
switch(vType)
{
case "mousedown":
this._lastMouseDownDomTarget = vDomTarget;
this._lastMouseDownDispatchTarget = vDispatchTarget;
break;
case "mouseup":
// Add additional click event if the dispatch target is the same, but the dom target is different
if (this._lastMouseDownDispatchTarget === vDispatchTarget && vDomTarget !== this._lastMouseDownDomTarget)
{
vReturn = true;
}
else
{
this._lastMouseDownDomTarget = null;
this._lastMouseDownDispatchTarget = null;
}
}
return vReturn;
};
}
else
{
qx.Proto._onmouseevent_click_fix = function(vDomTarget, vDispatchTarget) {
return false;
}
};
/*!
This is the crossbrowser post handler for all mouse events.
*/
qx.Proto._onmouseevent_post = function(vDomEvent, vType, vDomTarget)
{
try
{
var vEventObject, vCaptureTarget, vDispatchTarget, vTarget, vOriginalTarget, vRelatedTarget, vFixClick, vTargetIsEnabled;
// Check for capturing, if enabled the target is the captured widget.
vCaptureTarget = this.getCaptureWidget();
// Event Target Object
vOriginalTarget = qx.event.handler.EventHandler.getOriginalTargetObject(vDomTarget);
// If capturing isn't active search for a valid target object
if (!vCaptureTarget)
{
// Get Target Object
vDispatchTarget = vTarget = qx.event.handler.EventHandler.getTargetObject(null, vOriginalTarget, true);
}
else
{
vDispatchTarget = vCaptureTarget;
vTarget = qx.event.handler.EventHandler.getTargetObject(null, vOriginalTarget, true);
}
// If there is no target, we have nothing to do
if (!vTarget) {
return;
}
vTargetIsEnabled = vTarget.getEnabled();
// Fix click event
vFixClick = this._onmouseevent_click_fix(vDomTarget, vType, vDispatchTarget);
// Prevent the browser's native context menu
if (vType == "contextmenu" && !this.getAllowClientContextMenu()) {
qx.event.handler.EventHandler.stopDomEvent(vDomEvent);
}
// Update focus
if (vTargetIsEnabled && vType == "mousedown") {
qx.event.handler.FocusHandler.mouseFocus = true;
var vRoot = vTarget.getFocusRoot();
if (vRoot)
{
this.setFocusRoot(vRoot);
vRoot.setActiveChild(vTarget);
// Active focus on element (if possible, else search up the parent tree)
var vFocusTarget = vTarget;
while (!vFocusTarget.isFocusable() && vFocusTarget != vRoot) {
vFocusTarget = vFocusTarget.getParent();
}
vRoot.setFocusedChild(vFocusTarget);
}
}
var vDomEventTarget = vTarget.getElement();
// Find related target object
switch(vType)
{
case "mouseover":
case "mouseout":
vRelatedTarget = qx.event.handler.EventHandler.getRelatedTargetObjectFromEvent(vDomEvent);
// Ignore events where the related target and
// the real target are equal - from our sight
if (vRelatedTarget == vTarget) {
return;
}
}
try
{
// Create Mouse Event Object
vEventObject = new qx.event.type.MouseEvent(vType, vDomEvent, vDomTarget, vTarget, vOriginalTarget, vRelatedTarget);
}
catch(ex)
{
return this.error("Failed to create mouse event", ex);
}
// Store last Event in MouseEvent Constructor
// Needed for Tooltips, ...
qx.event.type.MouseEvent._storeEventState(vEventObject);
if (vTargetIsEnabled) {
// Dispatch Event through target (eventtarget-)object
var vEventWasProcessed = false;
try {
vEventWasProcessed = vDispatchTarget ? vDispatchTarget.dispatchEvent(vEventObject) : true;
// Handle Special Post Events
this._onmouseevent_special_post(vType, vTarget, vOriginalTarget, vDispatchTarget, vEventWasProcessed, vEventObject, vDomEvent);
} catch(ex) {
this.error("Failed to dispatch mouse event", ex);
this.createDispatchDataEvent("error", ex);
}
} else {
// target is disabled -> Pass the event only to the ToolTipManager
if (vType == "mouseover") {
if (qx.OO.isAvailable("qx.manager.object.ToolTipManager")) {
qx.manager.object.ToolTipManager.getInstance().handleMouseOver(vEventObject);
}
}
}
// Dispose Event Object
vEventObject.dispose();
vEventObject = null;
// Flush Queues
qx.ui.core.Widget.flushGlobalQueues();
// Fix Click (Gecko Bug, see above)
if (vFixClick)
{
this._onmouseevent_post(vDomEvent, "click", this._lastMouseDownDomTarget);
this._lastMouseDownDomTarget = null;
this._lastMouseDownDispatchTarget = null;
}
}
catch(ex)
{
return this.error("Failed to handle mouse event", ex);
}
}
qx.Proto._onmouseevent_special_post = function(vType, vTarget, vOriginalTarget, vDispatchTarget, vEventWasProcessed, vEventObject, vDomEvent) {
switch(vType)
{
case "mousedown":
if (qx.OO.isAvailable("qx.manager.object.PopupManager")) {
qx.manager.object.PopupManager.getInstance().update(vTarget);
}
if (qx.OO.isAvailable("qx.manager.object.MenuManager")) {
qx.manager.object.MenuManager.getInstance().update(vTarget, vType);
}
if (qx.OO.isAvailable("qx.manager.object.IframeManager")) {
qx.manager.object.IframeManager.getInstance().handleMouseDown(vEventObject);
}
break;
case "mouseup":
// Mouseup event should always hide, independed of target, so don't send a target
if (qx.OO.isAvailable("qx.manager.object.MenuManager")) {
qx.manager.object.MenuManager.getInstance().update(vTarget, vType);
}
if (qx.OO.isAvailable("qx.manager.object.IframeManager")) {
qx.manager.object.IframeManager.getInstance().handleMouseUp(vEventObject);
}
break;
case "mouseover":
if (qx.OO.isAvailable("qx.manager.object.ToolTipManager")) {
qx.manager.object.ToolTipManager.getInstance().handleMouseOver(vEventObject);
}
break;
case "mouseout":
if (qx.OO.isAvailable("qx.manager.object.ToolTipManager")) {
qx.manager.object.ToolTipManager.getInstance().handleMouseOut(vEventObject);
}
break;
case "mousewheel":
// priority for the real target not the (eventually captured) dispatch target
vEventWasProcessed ? this._onmousewheel(vOriginalTarget || vDispatchTarget, vEventObject) : qx.event.handler.EventHandler.stopDomEvent(vDomEvent);
break;
}
this._ignoreWindowBlur = vType === "mousedown";
// Send Event Object to Drag&Drop Manager
if (qx.OO.isAvailable("qx.event.handler.DragAndDropHandler") && vTarget) {
qx.event.handler.DragAndDropHandler.getInstance().handleMouseEvent(vEventObject);
}
}
if (qx.core.Client.getInstance().isGecko())
{
qx.Proto._onmousewheel = function(vTarget, vEvent)
{
if(vTarget == null) {
return;
}
// ingore if overflow is configured as hidden
// in this case send the event to the parent instead
if(vTarget.getOverflowY() == "hidden") {
return this._onmousewheel(vTarget.getParent(), vEvent);
}
var vScrollTop = vTarget.getScrollTop();
var vDelta = 20 * vEvent.getWheelDelta();
// if already at the top edge and the user scrolls up
// then send the event to the parent instead
if(vScrollTop == 0 && vDelta > 0) {
return this._onmousewheel(vTarget.getParent(), vEvent);
}
var vScrollHeight = vTarget.getScrollHeight();
var vClientHeight = vTarget.getClientHeight();
// if already at the bottom edge and the user scrolls down
// then send the event to the parent instead
if(vScrollTop + vClientHeight >= vScrollHeight && vDelta < 0) {
return this._onmousewheel(vTarget.getParent(), vEvent);
}
// apply new scroll position
vTarget.setScrollTop(vScrollTop - vDelta);
// stop default handling, that works sometimes, too
vEvent.preventDefault();
}
}
else
{
qx.Proto._onmousewheel = function() {};
}
/*
---------------------------------------------------------------------------
DRAG EVENTS
Currently only to stop non needed events
---------------------------------------------------------------------------
*/
qx.Proto._ondragevent = function(vEvent)
{
if (!vEvent) {
vEvent = window.event;
}
qx.event.handler.EventHandler.stopDomEvent(vEvent);
}
/*
---------------------------------------------------------------------------
SELECT EVENTS
---------------------------------------------------------------------------
*/
qx.Proto._onselectevent = function(e)
{
if(!e) {
e = window.event;
}
var vTarget = qx.event.handler.EventHandler.getOriginalTargetObjectFromEvent(e);
if(vTarget && !vTarget.getSelectable()) {
qx.event.handler.EventHandler.stopDomEvent(e);
}
}
/*
---------------------------------------------------------------------------
WINDOW EVENTS
---------------------------------------------------------------------------
*/
qx.Proto._focused = false;
qx.Proto._onwindowblur = function(e)
{
// this.debug("Try Window blur...");
if (!this._focused || this._ignoreWindowBlur) {
return;
}
this._focused = false;
// this.debug("Window blur...");
// Disable capturing
this.setCaptureWidget(null);
// Hide Popups, Tooltips, ...
if (qx.OO.isAvailable("qx.manager.object.PopupManager")) {
qx.manager.object.PopupManager.getInstance().update();
}
// Hide Menus
if (qx.OO.isAvailable("qx.manager.object.MenuManager")) {
qx.manager.object.MenuManager.getInstance().update();
}
// Cancel Drag Operations
if (qx.OO.isAvailable("qx.event.handler.DragAndDropHandler")) {
qx.event.handler.DragAndDropHandler.getInstance().globalCancelDrag();
}
// Send blur event to client document
qx.ui.core.ClientDocument.getInstance().createDispatchEvent("windowblur");
}
qx.Proto._onwindowfocus = function(e)
{
// this.debug("Try Window focus...");
if (this._focused) {
return;
}
this._focused = true;
// this.debug("Window focus...");
// Send focus event to client document
qx.ui.core.ClientDocument.getInstance().createDispatchEvent("windowfocus");
}
qx.Proto._onwindowresize = function(e)
{
// Send resize event to client document
qx.ui.core.ClientDocument.getInstance().createDispatchEvent("windowresize");
}
/*
---------------------------------------------------------------------------
DISPOSE
---------------------------------------------------------------------------
*/
qx.Proto.dispose = function()
{
if (this.getDisposed()) {
return;
}
// Detach mouse events
this.detachEvents();
// Reset functions
this.__onmouseevent = this.__ondragevent = this.__onselectevent = null;
this.__onwindowblur = this.__onwindowfocus = this.__onwindowresize = null;
// Cleanup
this._lastMouseEventType = null;
this._lastMouseDown = null;
this._lastMouseEventDate = null;
this._lastMouseDownDomTarget = null;
this._lastMouseDownDispatchTarget = null;
if (this._commands)
{
for (var vHash in this._commands)
{
this._commands[vHash].dispose();
delete this._commands[vHash];
}
this._commands = null;
}
qx.core.Target.prototype.dispose.call(this);
}
/*
---------------------------------------------------------------------------
DEFER SINGLETON INSTANCE
---------------------------------------------------------------------------
*/
/**
* Singleton Instance Getter
*/
qx.Class.getInstance = qx.lang.Function.returnInstance;
|