220 lines
7.8 KiB
C++
220 lines
7.8 KiB
C++
/*
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SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "layershellv1integration.h"
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#include "core/output.h"
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#include "layershellv1window.h"
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#include "wayland/display.h"
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#include "wayland/layershell_v1.h"
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#include "wayland/output.h"
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#include "wayland_server.h"
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#include "workspace.h"
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#include <QTimer>
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namespace KWin
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{
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static const Qt::Edges AnchorHorizontal = Qt::LeftEdge | Qt::RightEdge;
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static const Qt::Edges AnchorVertical = Qt::TopEdge | Qt::BottomEdge;
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LayerShellV1Integration::LayerShellV1Integration(QObject *parent)
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: WaylandShellIntegration(parent)
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{
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LayerShellV1Interface *shell = new LayerShellV1Interface(waylandServer()->display(), this);
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connect(shell, &LayerShellV1Interface::surfaceCreated,
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this, &LayerShellV1Integration::createWindow);
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m_rearrangeTimer = new QTimer(this);
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m_rearrangeTimer->setSingleShot(true);
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connect(m_rearrangeTimer, &QTimer::timeout, this, &LayerShellV1Integration::rearrange);
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}
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void LayerShellV1Integration::createWindow(LayerSurfaceV1Interface *shellSurface)
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{
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Output *output = shellSurface->output() ? shellSurface->output()->handle() : workspace()->activeOutput();
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if (!output) {
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qCWarning(KWIN_CORE) << "Could not find any suitable output for a layer surface";
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shellSurface->sendClosed();
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return;
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}
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Q_EMIT windowCreated(new LayerShellV1Window(shellSurface, output, this));
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}
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void LayerShellV1Integration::recreateWindow(LayerSurfaceV1Interface *shellSurface)
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{
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destroyWindow(shellSurface);
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createWindow(shellSurface);
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}
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void LayerShellV1Integration::destroyWindow(LayerSurfaceV1Interface *shellSurface)
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{
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const QList<Window *> windows = waylandServer()->windows();
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for (Window *window : windows) {
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LayerShellV1Window *layerShellWindow = qobject_cast<LayerShellV1Window *>(window);
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if (layerShellWindow && layerShellWindow->shellSurface() == shellSurface) {
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layerShellWindow->destroyWindow();
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break;
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}
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}
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}
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static void adjustWorkArea(const LayerSurfaceV1Interface *shellSurface, QRect *workArea)
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{
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switch (shellSurface->exclusiveEdge()) {
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case Qt::LeftEdge:
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workArea->adjust(shellSurface->leftMargin() + shellSurface->exclusiveZone(), 0, 0, 0);
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break;
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case Qt::RightEdge:
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workArea->adjust(0, 0, -shellSurface->rightMargin() - shellSurface->exclusiveZone(), 0);
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break;
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case Qt::TopEdge:
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workArea->adjust(0, shellSurface->topMargin() + shellSurface->exclusiveZone(), 0, 0);
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break;
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case Qt::BottomEdge:
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workArea->adjust(0, 0, 0, -shellSurface->bottomMargin() - shellSurface->exclusiveZone());
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break;
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}
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}
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static void rearrangeLayer(const QList<LayerShellV1Window *> &windows, QRect *workArea,
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LayerSurfaceV1Interface::Layer layer, bool exclusive)
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{
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for (LayerShellV1Window *window : windows) {
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LayerSurfaceV1Interface *shellSurface = window->shellSurface();
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if (shellSurface->layer() != layer) {
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continue;
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}
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if (exclusive != (shellSurface->exclusiveZone() > 0)) {
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continue;
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}
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QRect bounds;
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if (shellSurface->exclusiveZone() == -1) {
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bounds = window->desiredOutput()->geometry();
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} else {
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bounds = *workArea;
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}
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QRect geometry(QPoint(0, 0), shellSurface->desiredSize());
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if ((shellSurface->anchor() & AnchorHorizontal) && geometry.width() == 0) {
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geometry.setLeft(bounds.left());
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geometry.setWidth(bounds.width());
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} else if (shellSurface->anchor() & Qt::LeftEdge) {
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geometry.moveLeft(bounds.left());
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} else if (shellSurface->anchor() & Qt::RightEdge) {
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geometry.moveRight(bounds.right());
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} else {
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geometry.moveLeft(bounds.left() + (bounds.width() - geometry.width()) / 2);
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}
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if ((shellSurface->anchor() & AnchorVertical) && geometry.height() == 0) {
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geometry.setTop(bounds.top());
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geometry.setHeight(bounds.height());
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} else if (shellSurface->anchor() & Qt::TopEdge) {
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geometry.moveTop(bounds.top());
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} else if (shellSurface->anchor() & Qt::BottomEdge) {
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geometry.moveBottom(bounds.bottom());
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} else {
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geometry.moveTop(bounds.top() + (bounds.height() - geometry.height()) / 2);
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}
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if ((shellSurface->anchor() & AnchorHorizontal) == AnchorHorizontal) {
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geometry.adjust(shellSurface->leftMargin(), 0, -shellSurface->rightMargin(), 0);
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} else if (shellSurface->anchor() & Qt::LeftEdge) {
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geometry.translate(shellSurface->leftMargin(), 0);
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} else if (shellSurface->anchor() & Qt::RightEdge) {
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geometry.translate(-shellSurface->rightMargin(), 0);
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}
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if ((shellSurface->anchor() & AnchorVertical) == AnchorVertical) {
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geometry.adjust(0, shellSurface->topMargin(), 0, -shellSurface->bottomMargin());
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} else if (shellSurface->anchor() & Qt::TopEdge) {
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geometry.translate(0, shellSurface->topMargin());
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} else if (shellSurface->anchor() & Qt::BottomEdge) {
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geometry.translate(0, -shellSurface->bottomMargin());
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}
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// Move the window's bottom if its virtual keyboard is overlapping it
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if (shellSurface->exclusiveZone() >= 0 && !window->virtualKeyboardGeometry().isEmpty() && geometry.bottom() > window->virtualKeyboardGeometry().top()) {
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geometry.setBottom(window->virtualKeyboardGeometry().top());
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}
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window->updateLayer();
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if (geometry.isValid()) {
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window->moveResize(geometry);
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} else {
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qCWarning(KWIN_CORE) << "Closing a layer shell window due to invalid geometry";
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window->closeWindow();
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continue;
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}
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if (exclusive && shellSurface->exclusiveZone() > 0) {
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adjustWorkArea(shellSurface, workArea);
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}
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}
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}
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static QList<LayerShellV1Window *> windowsForOutput(Output *output)
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{
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QList<LayerShellV1Window *> result;
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const QList<Window *> windows = waylandServer()->windows();
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for (Window *window : windows) {
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LayerShellV1Window *layerShellWindow = qobject_cast<LayerShellV1Window *>(window);
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if (!layerShellWindow || layerShellWindow->desiredOutput() != output) {
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continue;
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}
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if (layerShellWindow->shellSurface()->isCommitted()) {
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result.append(layerShellWindow);
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}
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}
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return result;
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}
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static void rearrangeOutput(Output *output)
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{
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const QList<LayerShellV1Window *> windows = windowsForOutput(output);
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if (!windows.isEmpty()) {
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QRect workArea = output->geometry();
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::OverlayLayer, true);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::TopLayer, true);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::BottomLayer, true);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::BackgroundLayer, true);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::OverlayLayer, false);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::TopLayer, false);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::BottomLayer, false);
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rearrangeLayer(windows, &workArea, LayerSurfaceV1Interface::BackgroundLayer, false);
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}
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}
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void LayerShellV1Integration::rearrange()
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{
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m_rearrangeTimer->stop();
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const QList<Output *> outputs = workspace()->outputs();
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for (Output *output : outputs) {
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rearrangeOutput(output);
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}
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if (workspace()) {
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workspace()->updateClientArea();
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}
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}
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void LayerShellV1Integration::scheduleRearrange()
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{
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m_rearrangeTimer->start();
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}
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} // namespace KWin
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#include "moc_layershellv1integration.cpp"
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