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/*
SPDX-FileCopyrightText: 2017 Martin Graesslin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
#include "popup_input_filter.h"
#include "input_event.h"
#include "internalwindow.h"
#include "keyboard_input.h"
#include "wayland/seat.h"
#include "wayland_server.h"
#include "waylandwindow.h"
#include "window.h"
#include "workspace.h"
#include <qpa/qwindowsysteminterface.h>
namespace KWin
{
PopupInputFilter::PopupInputFilter()
: QObject()
, InputEventFilter(InputFilterOrder::Popup)
{
connect(workspace(), &Workspace::windowAdded, this, &PopupInputFilter::handleWindowAdded);
connect(workspace(), &Workspace::windowActivated, this, &PopupInputFilter::handleWindowFocusChanged);
}
void PopupInputFilter::handleWindowAdded(Window *window)
{
if (m_popupWindows.contains(window)) {
return;
}
if (window->hasPopupGrab()) {
// TODO: verify that the Window is allowed as a popup
m_popupWindows << window;
focus(window);
connect(window, &Window::closed, this, [this, window]() {
m_popupWindows.removeOne(window);
// Move focus to the parent popup. If that's the last popup, then move focus back to the parent
if (!m_popupWindows.isEmpty()) {
focus(m_popupWindows.constLast());
} else {
input()->keyboard()->update();
}
});
}
}
void PopupInputFilter::handleWindowFocusChanged()
{
// user focussed a window through another mechanism such as a shortcut
cancelPopups();
}
bool PopupInputFilter::pointerButton(PointerButtonEvent *event)
{
if (m_popupWindows.isEmpty()) {
return false;
}
if (event->state == PointerButtonState::Pressed) {
auto pointerFocus = input()->findToplevel(event->position);
if (!pointerFocus || !Window::belongToSameApplication(pointerFocus, m_popupWindows.constLast())) {
// a press on a window (or no window) not belonging to the popup window
cancelPopups();
// filter out this press
return true;
}
if (pointerFocus && pointerFocus->isDecorated()) {
// test whether it is on the decoration
if (!exclusiveContains(pointerFocus->clientGeometry(), event->position)) {
cancelPopups();
return true;
}
}
}
return false;
}
bool PopupInputFilter::keyboardKey(KeyboardKeyEvent *event)
{
if (m_popupWindows.isEmpty()) {
return false;
}
Window *last = m_popupWindows.last();
focus(last);
if (auto internalWindow = qobject_cast<InternalWindow *>(last)) {
QWindowSystemInterface::handleExtendedKeyEvent(internalWindow->handle(),
event->state != KeyboardKeyState::Released ? QEvent::KeyPress : QEvent::KeyRelease,
event->key,
event->modifiers,
event->nativeScanCode,
event->nativeVirtualKey,
0,
event->text,
event->state == KeyboardKeyState::Repeated);
} else if (qobject_cast<WaylandWindow *>(last)) {
if (!passToInputMethod(event)) {
waylandServer()->seat()->setTimestamp(event->timestamp);
waylandServer()->seat()->notifyKeyboardKey(event->nativeScanCode, event->state, event->serial);
}
}
return true;
}
bool PopupInputFilter::touchDown(TouchDownEvent *event)
{
if (m_popupWindows.isEmpty()) {
return false;
}
auto pointerFocus = input()->findToplevel(event->pos);
if (!pointerFocus || !Window::belongToSameApplication(pointerFocus, m_popupWindows.constLast())) {
// a touch on a window (or no window) not belonging to the popup window
cancelPopups();
// filter out this touch
return true;
}
if (pointerFocus && pointerFocus->isDecorated()) {
// test whether it is on the decoration
if (!exclusiveContains(pointerFocus->clientGeometry(), event->pos)) {
cancelPopups();
return true;
}
}
return false;
}
bool PopupInputFilter::tabletToolTipEvent(TabletToolTipEvent *event)
{
if (m_popupWindows.isEmpty()) {
return false;
}
if (event->type == TabletToolTipEvent::Type::Press) {
auto tabletFocus = input()->findToplevel(event->position);
if (!tabletFocus || !Window::belongToSameApplication(tabletFocus, m_popupWindows.constLast())) {
// a touch on a window (or no window) not belonging to the popup window
cancelPopups();
// filter out this touch
return true;
}
if (tabletFocus && tabletFocus->isDecorated()) {
// test whether it is on the decoration
if (!exclusiveContains(tabletFocus->clientGeometry(), event->position)) {
cancelPopups();
return true;
}
}
}
return false;
}
void PopupInputFilter::focus(Window *popup)
{
if (auto internalWindow = qobject_cast<InternalWindow *>(m_popupWindows.constLast())) {
waylandServer()->seat()->setFocusedKeyboardSurface(nullptr);
if (QGuiApplication::focusWindow() != internalWindow->handle()) {
QWindowSystemInterface::handleFocusWindowChanged(internalWindow->handle());
}
} else if (auto waylandWindow = qobject_cast<WaylandWindow *>(m_popupWindows.constLast())) {
if (QGuiApplication::focusWindow()) {
QWindowSystemInterface::handleFocusWindowChanged(nullptr);
}
waylandServer()->seat()->setFocusedKeyboardSurface(waylandWindow->surface(), input()->keyboard()->unfilteredKeys());
}
}
void PopupInputFilter::cancelPopups()
{
while (!m_popupWindows.isEmpty()) {
auto c = m_popupWindows.takeLast();
c->popupDone();
}
}
}
#include "moc_popup_input_filter.cpp"
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