kwin/src/internal_client.h

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2020-08-02 22:22:19 +00:00
/*
KWin - the KDE window manager
This file is part of the KDE project.
2020-08-02 22:22:19 +00:00
SPDX-FileCopyrightText: 2019 Martin Flöser <mgraesslin@kde.org>
SPDX-FileCopyrightText: 2019 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
2020-08-02 22:22:19 +00:00
SPDX-License-Identifier: GPL-2.0-or-later
*/
#pragma once
#include "abstract_client.h"
namespace KWin
{
class KWIN_EXPORT InternalClient : public AbstractClient
{
Q_OBJECT
public:
explicit InternalClient(QWindow *window);
~InternalClient() override;
bool eventFilter(QObject *watched, QEvent *event) override;
qreal bufferScale() const override;
QString captionNormal() const override;
QString captionSuffix() const override;
QSize minSize() const override;
QSize maxSize() const override;
NET::WindowType windowType(bool direct = false, int supported_types = 0) const override;
void killWindow() override;
bool isClient() const override;
bool isPopupWindow() const override;
QByteArray windowRole() const override;
void closeWindow() override;
bool isCloseable() const override;
bool isMovable() const override;
bool isMovableAcrossScreens() const override;
bool isResizable() const override;
bool isPlaceable() const override;
bool noBorder() const override;
bool userCanSetNoBorder() const override;
bool wantsInput() const override;
bool isInternal() const override;
bool isLockScreen() const override;
bool isOutline() const override;
bool isShown(bool shaded_is_shown) const override;
bool isHiddenInternal() const override;
void hideClient(bool hide) override;
void resizeWithChecks(const QSize &size) override;
AbstractClient *findModal(bool allow_itself = false) override;
bool takeFocus() override;
void setNoBorder(bool set) override;
void updateDecoration(bool check_workspace_pos, bool force = false) override;
void destroyClient() override;
bool hasPopupGrab() const override;
void popupDone() override;
bool hitTest(const QPoint &point) const override;
void present(const QSharedPointer<QOpenGLFramebufferObject> fbo);
void present(const QImage &image, const QRegion &damage);
QWindow *internalWindow() const;
protected:
bool acceptsFocus() const override;
bool belongsToSameApplication(const AbstractClient *other, SameApplicationChecks checks) const override;
void doInteractiveResizeSync() override;
void updateCaption() override;
Rework async geometry updates Window management features were written with synchronous geometry updates in mind. Currently, this poses a big problem on Wayland because geometry updates are done in asynchronous fashion there. At the moment, geometry is updated in a so called pseudo-asynchronous fashion, meaning that the frame geometry will be reset to the old value once geometry updates are unblocked. The main drawback of this approach is that it is too error prone, the data flow is hard to comprehend, etc. It is worth noting that there is already a machinery to perform async geometry which is used during interactive move/resize operations. This change extends the move/resize geometry usage beyond interactive move/resize to make asynchronous geometry updates less error prone and easier to comprehend. With the proposed solution, all geometry updates must be done on the move/resize geometry first. After that, the new geometry is passed on to the Client-specific implementation of moveResizeInternal(). To be more specific, the frameGeometry() returns the current frame geometry, it is primarily useful only to the scene. If you want to move or resize a window, you need to use moveResizeGeometry() because it corresponds to the last requested frame geometry. It is worth noting that the moveResizeGeometry() returns the desired bounding geometry. The client may commit the xdg_toplevel surface with a slightly smaller window geometry, for example to enforce a specific aspect ratio. The client is not allowed to resize beyond the size as indicated in moveResizeGeometry(). The data flow is very simple: moveResize() updates the move/resize geometry and calls the client-specific implementation of the moveResizeInternal() method. Based on whether a configure event is needed, moveResizeInternal() will update the frameGeometry() either immediately or after the client commits a new buffer. Unfortunately, both the compositor and xdg-shell clients try to update the window geometry. It means that it's possible to have conflicts between the two. With this change, the compositor's move resize geometry will be synced only if there are no pending configure events, meaning that the user doesn't try to resize the window.
2021-04-30 18:26:09 +00:00
void moveResizeInternal(const QRect &rect, MoveResizeMode mode) override;
private:
void requestGeometry(const QRect &rect);
void commitGeometry(const QRect &rect);
void setCaption(const QString &caption);
void markAsMapped();
void syncGeometryToInternalWindow();
void updateInternalWindowGeometry();
QWindow *m_internalWindow = nullptr;
QString m_captionNormal;
QString m_captionSuffix;
NET::WindowType m_windowType = NET::Normal;
Qt::WindowFlags m_internalWindowFlags = Qt::WindowFlags();
bool m_userNoBorder = false;
Q_DISABLE_COPY(InternalClient)
};
}