109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/platform/win/ui_utility_win.h"
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#include "ui/widgets/popup_menu.h"
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#include <QtWidgets/QApplication>
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#include <QtGui/QWindow>
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#include <QtCore/QAbstractNativeEventFilter>
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#include <windows.h>
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#include "base/event_filter.h"
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#include <QTimer>
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#include <QScreen>
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namespace Ui::Platform {
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bool IsApplicationActive() {
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return QApplication::activeWindow() != nullptr;
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}
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void IgnoreAllActivation(not_null<QWidget*> widget) {
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widget->createWinId();
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const auto handle = reinterpret_cast<HWND>(widget->winId());
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Assert(handle != nullptr);
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ShowWindow(handle, SW_HIDE);
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const auto style = GetWindowLongPtr(handle, GWL_EXSTYLE);
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SetWindowLongPtr(
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handle,
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GWL_EXSTYLE,
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style | WS_EX_NOACTIVATE | WS_EX_APPWINDOW);
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ShowWindow(handle, SW_SHOW);
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}
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void ShowWindowMenu(not_null<QWidget*> widget, const QPoint &point) {
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const auto handle = HWND(widget->winId());
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const auto mapped = point * widget->windowHandle()->devicePixelRatio();
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POINT p{ mapped.x(), mapped.y() };
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ClientToScreen(handle, &p);
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SendMessage(
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handle,
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0x313 /* WM_POPUPSYSTEMMENU */,
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0,
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MAKELPARAM(p.x, p.y));
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}
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void FixPopupMenuNativeEmojiPopup(not_null<PopupMenu*> menu) {
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// Windows native emoji selector, that can be called by Win+. shortcut,
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// is behaving strangely within an input field in a popup menu.
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//
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// When the selector is shown and a mouse button is pressed the system
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// sends two events "MousePress + MouseRelease" to the popup menu, even
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// before the button is physically released. That way we hide the menu
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// on this MousePress, that we shouldn't have received (in case of
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// input field in the main window no such events are sent at all).
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//
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// To workaround this we detect a WM_MOUSELEAVE event that is sent to
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// the popup menu when the selector is shown and skip all mouse press
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// events while we don't receive mouse move events. If we receive mouse
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// move events that means the selector was hidden and the mouse is
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// captured by the popup menu again.
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class Filter final : public QAbstractNativeEventFilter {
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public:
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explicit Filter(not_null<PopupMenu*> menu) : _menu(menu) {
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}
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bool nativeEventFilter(
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const QByteArray &eventType,
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void *message,
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native_event_filter_result *result) override {
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const auto msg = static_cast<MSG*>(message);
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switch (msg->message) {
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case WM_MOUSELEAVE: if (msg->hwnd == hwnd()) {
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_skipMouseDown = true;
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} break;
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case WM_MOUSEMOVE: if (msg->hwnd == hwnd()) {
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_skipMouseDown = false;
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} break;
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case WM_LBUTTONDOWN:
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case WM_LBUTTONDBLCLK: if (msg->hwnd == hwnd()) {
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return _skipMouseDown;
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}
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}
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return false;
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}
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private:
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[[nodiscard]] HWND hwnd() const {
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const auto top = _menu->window()->windowHandle();
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return top ? reinterpret_cast<HWND>(top->winId()) : nullptr;
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}
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not_null<PopupMenu*> _menu;
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bool _skipMouseDown = false;
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};
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QGuiApplication::instance()->installNativeEventFilter(
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menu->lifetime().make_state<Filter>(menu));
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}
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} // namespace Ui::Platform
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