kwin/libkdecorations/kdecorationbridge.h

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/*****************************************************************
This file is part of the KDE project.
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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 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.
******************************************************************/
#ifndef KDECORATIONBRIDGE_H
#define KDECORATIONBRIDGE_H
#include "kdecoration.h"
#include <QWidget>
/**
* @short Bridge class for communicating between decorations and KWin core.
*
* This class allows communication between decorations and KWin core while allowing
* to keep binary compatibility. Decorations do not need to use it directly at all.
*/
class KDecorationBridge : public KDecorationDefines
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{
public:
virtual ~KDecorationBridge() {}
virtual bool isActive() const = 0;
virtual bool isCloseable() const = 0;
virtual bool isMaximizable() const = 0;
virtual MaximizeMode maximizeMode() const = 0;
virtual QuickTileMode quickTileMode() const = 0;
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virtual bool isMinimizable() const = 0;
virtual bool providesContextHelp() const = 0;
virtual int desktop() const = 0;
virtual bool isModal() const = 0;
virtual bool isShadeable() const = 0;
virtual bool isShade() const = 0;
virtual bool isSetShade() const = 0;
virtual bool keepAbove() const = 0;
virtual bool keepBelow() const = 0;
virtual bool isMovable() const = 0;
virtual bool isResizable() const = 0;
virtual NET::WindowType windowType(unsigned long supported_types) const = 0;
virtual QIcon icon() const = 0;
virtual QString caption() const = 0;
virtual void processMousePressEvent(QMouseEvent*) = 0;
virtual void showWindowMenu(const QRect &) = 0;
virtual void showWindowMenu(const QPoint &) = 0;
virtual void showApplicationMenu(const QPoint&) = 0;
virtual bool menuAvailable() const = 0;
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virtual void performWindowOperation(WindowOperation) = 0;
virtual void setMask(const QRegion&, int) = 0;
virtual bool isPreview() const = 0;
virtual QRect geometry() const = 0;
virtual QRect iconGeometry() const = 0;
virtual QRegion unobscuredRegion(const QRegion& r) const = 0;
virtual WId windowId() const = 0;
virtual void closeWindow() = 0;
virtual void maximize(MaximizeMode mode) = 0;
virtual void minimize() = 0;
virtual void showContextHelp() = 0;
virtual void setDesktop(int desktop) = 0;
virtual void titlebarDblClickOperation() = 0;
virtual void titlebarMouseWheelOperation(int delta) = 0;
virtual void setShade(bool set) = 0;
virtual void setKeepAbove(bool) = 0;
virtual void setKeepBelow(bool) = 0;
// not part of public API
virtual int currentDesktop() const = 0;
virtual QWidget* initialParentWidget() const = 0;
virtual Qt::WindowFlags initialWFlags() const = 0;
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virtual void grabXServer(bool grab) = 0;
};
KDecorationBridge becomes private again With 4933f08ae49328e36e2654434d28917310882ee5 the KDecorationBridge interface became public to allow Compiz to easily implement the class. From a KWin perspective this change did not make much sense. The Bridge is meant to be the interface towards KWin. It is an internal interface and exporting it doesn't change the fact that it is internal. The change got introduced in a time when it was still common to use Compiz in the kde-workspaces. This has changed. None of the top ten distributions on distrowatch are shipping the integration parts of Compiz in an up to date version. Most distros are still on Compiz 0.8, which requires manual patching to keep up with changes in the decoration API. Distros on Compiz 0.9 are not shipping the KDE integration - this includes Ubuntu. Given this development it is no longer justified to have additional work on KWin side and because of that the API which should be internal is marked as internal again. In case Compiz is still interested in providing the kde-window-decorator the header file can easily be pulled from our repository. In addition this patch includes a method int decoration_bridge_version() which returns the current bridge API version. Kde-window-decorator can resolve this method and verify that the version is not higher than what is supported. The version number is provided in kdecoration.h by the define KWIN_DECORATION_BRIDGE_API_VERSION. We will increate the version number once per release in case the bridge changed. 4.11 will have the version number 1. This change in behavior has been discussed and agreed in [1]. The change also unexports KDecorationBridgeUnstable. This class should have never been exported, it was incorrect and the parent class had not been exported anyway. This is just a note to indicate that it is not an ABI break and there is no reason to increase the so number. [1] http://lists.kde.org/?l=kwin&m=136335502805911&w=2 CCMAIL: compiz@lists.freedesktop.org CCMAIL: dev@lists.compiz.org REVIEW: 109536
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class KDecorationBridgeUnstable
: public KDecorationBridge
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{
public:
virtual bool compositingActive() const = 0;
virtual QRect transparentRect() const = 0;
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// Window tabbing
using KDecorationBridge::caption;
virtual QString caption(int idx) const = 0;
virtual void closeTab(long id) = 0;
virtual void closeTabGroup() = 0;
virtual long currentTabId() const = 0;
using KDecorationBridge::icon;
virtual QIcon icon(int idx) const = 0;
virtual void setCurrentTab(long id) = 0;
using KDecorationBridge::showWindowMenu;
virtual void showWindowMenu(const QPoint& pos, long id) = 0;
virtual void tab_A_before_B(long A, long B) = 0;
virtual void tab_A_behind_B(long A, long B) = 0;
virtual int tabCount() const = 0;
virtual long tabId(int idx) const = 0;
virtual void untab(long id, const QRect& newGeom) = 0;
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virtual WindowOperation buttonToWindowOperation(Qt::MouseButtons button) = 0;
};
#endif