6bdc963cda
Device events always need to be delivered, core events only in some cases. Let's keep them completely separate so we can adjust core event delivery. Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>
127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*
|
|
* Copyright © 2008 Red Hat, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors: Peter Hutterer
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_DIX_CONFIG_H
|
|
#include <dix-config.h>
|
|
#endif
|
|
|
|
#include <X11/X.h>
|
|
#include "windowstr.h"
|
|
#include "exglobals.h"
|
|
#include "enterleave.h"
|
|
|
|
/**
|
|
* @return The window that is the first ancestor of both a and b.
|
|
*/
|
|
WindowPtr
|
|
CommonAncestor(
|
|
WindowPtr a,
|
|
WindowPtr b)
|
|
{
|
|
for (b = b->parent; b; b = b->parent)
|
|
if (IsParent(b, a)) return b;
|
|
return NullWindow;
|
|
}
|
|
|
|
|
|
/**
|
|
* Send enter notifies to all windows between @ancestor and @child (excluding
|
|
* both). Events are sent running up the window hierarchy. This function
|
|
* recurses.
|
|
* If @core is TRUE, core events are sent, otherwise XI events will be sent.
|
|
*/
|
|
static void
|
|
EnterNotifies(DeviceIntPtr dev,
|
|
WindowPtr ancestor,
|
|
WindowPtr child,
|
|
int mode,
|
|
int detail,
|
|
BOOL core)
|
|
{
|
|
WindowPtr parent = child->parent;
|
|
|
|
if (ancestor == parent)
|
|
return;
|
|
EnterNotifies(dev, ancestor, parent, mode, detail, core);
|
|
if (core)
|
|
CoreEnterLeaveEvent(dev, EnterNotify, mode, detail, parent,
|
|
child->drawable.id);
|
|
else
|
|
DeviceEnterLeaveEvent(dev, DeviceEnterNotify, mode, detail, parent,
|
|
child->drawable.id);
|
|
}
|
|
|
|
/**
|
|
* Send leave notifies to all windows between @child and @ancestor.
|
|
* Events are sent running up the hierarchy.
|
|
*/
|
|
static void
|
|
LeaveNotifies(DeviceIntPtr dev,
|
|
WindowPtr child,
|
|
WindowPtr ancestor,
|
|
int mode,
|
|
int detail,
|
|
BOOL core)
|
|
{
|
|
WindowPtr win;
|
|
|
|
if (ancestor == child)
|
|
return;
|
|
for (win = child->parent; win != ancestor; win = win->parent)
|
|
{
|
|
if (core)
|
|
CoreEnterLeaveEvent(dev, LeaveNotify, mode, detail, win,
|
|
child->drawable.id);
|
|
else
|
|
DeviceEnterLeaveEvent(dev, DeviceLeaveNotify, mode, detail, win,
|
|
child->drawable.id);
|
|
child = win;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Figure out if enter/leave events are necessary and send them to the
|
|
* appropriate windows.
|
|
*
|
|
* @param fromWin Window the sprite moved out of.
|
|
* @param toWin Window the sprite moved into.
|
|
*/
|
|
void
|
|
DoEnterLeaveEvents(DeviceIntPtr pDev,
|
|
WindowPtr fromWin,
|
|
WindowPtr toWin,
|
|
int mode)
|
|
{
|
|
if (!IsPointerDevice(pDev))
|
|
return;
|
|
|
|
if (fromWin == toWin)
|
|
return;
|
|
|
|
CoreEnterLeaveEvents(pDev, fromWin, toWin, mode);
|
|
DeviceEnterLeaveEvents(pDev, fromWin, toWin, mode);
|
|
}
|