645 lines
15 KiB
C++
645 lines
15 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/linux/ui_utility_linux.h"
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#include "base/platform/base_platform_info.h"
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#include "ui/platform/linux/ui_linux_wayland_integration.h"
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#include "base/const_string.h"
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#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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#include "base/platform/linux/base_linux_glibmm_helper.h"
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#include "base/platform/linux/base_linux_xdp_utilities.h"
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#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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#include "base/platform/linux/base_linux_xcb_utilities.h"
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#include "base/platform/linux/base_linux_xsettings.h"
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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#include <QtCore/QPoint>
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#include <QtGui/QWindow>
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#include <QtWidgets/QApplication>
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namespace Ui {
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namespace Platform {
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namespace {
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constexpr auto kXCBFrameExtentsAtomName = "_GTK_FRAME_EXTENTS"_cs;
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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std::optional<bool> XCBWindowMapped(xcb_window_t window) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return std::nullopt;
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}
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const auto cookie = xcb_get_window_attributes(connection, window);
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const auto reply = base::Platform::XCB::MakeReplyPointer(
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xcb_get_window_attributes_reply(
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connection,
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cookie,
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nullptr));
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if (!reply) {
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return std::nullopt;
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}
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return reply->map_state == XCB_MAP_STATE_VIEWABLE;
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}
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std::optional<bool> XCBWindowHidden(xcb_window_t window) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return std::nullopt;
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}
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const auto stateAtom = base::Platform::XCB::GetAtom(
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connection,
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"_NET_WM_STATE");
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const auto stateHiddenAtom = base::Platform::XCB::GetAtom(
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connection,
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"_NET_WM_STATE_HIDDEN");
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if (!stateAtom.has_value() || !stateHiddenAtom.has_value()) {
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return std::nullopt;
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}
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const auto cookie = xcb_get_property(
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connection,
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false,
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window,
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*stateAtom,
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XCB_ATOM_ATOM,
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0,
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1024);
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const auto reply = base::Platform::XCB::MakeReplyPointer(
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xcb_get_property_reply(
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connection,
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cookie,
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nullptr));
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if (!reply) {
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return std::nullopt;
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}
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if (reply->type != XCB_ATOM_ATOM || reply->format != 32) {
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return std::nullopt;
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}
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const auto atomsStart = reinterpret_cast<xcb_atom_t*>(
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xcb_get_property_value(reply.get()));
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const auto states = std::vector<xcb_atom_t>(
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atomsStart,
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atomsStart + reply->length);
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return ranges::contains(states, *stateHiddenAtom);
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}
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QRect XCBWindowGeometry(xcb_window_t window) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return {};
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}
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const auto cookie = xcb_get_geometry(connection, window);
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const auto reply = base::Platform::XCB::MakeReplyPointer(
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xcb_get_geometry_reply(
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connection,
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cookie,
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nullptr));
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if (!reply) {
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return {};
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}
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return QRect(reply->x, reply->y, reply->width, reply->height);
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}
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std::optional<uint> XCBCurrentWorkspace() {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return std::nullopt;
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}
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const auto root = base::Platform::XCB::GetRootWindow(connection);
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if (!root.has_value()) {
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return std::nullopt;
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}
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const auto currentDesktopAtom = base::Platform::XCB::GetAtom(
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connection,
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"_NET_CURRENT_DESKTOP");
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if (!currentDesktopAtom.has_value()) {
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return std::nullopt;
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}
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const auto cookie = xcb_get_property(
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connection,
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false,
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*root,
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*currentDesktopAtom,
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XCB_ATOM_CARDINAL,
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0,
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1024);
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const auto reply = base::Platform::XCB::MakeReplyPointer(
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xcb_get_property_reply(
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connection,
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cookie,
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nullptr));
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if (!reply) {
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return std::nullopt;
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}
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return (reply->type == XCB_ATOM_CARDINAL)
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? std::make_optional(
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*reinterpret_cast<ulong*>(xcb_get_property_value(reply.get())))
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: std::nullopt;
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}
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std::optional<uint> XCBWindowWorkspace(xcb_window_t window) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return std::nullopt;
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}
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const auto desktopAtom = base::Platform::XCB::GetAtom(
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connection,
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"_NET_WM_DESKTOP");
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if (!desktopAtom.has_value()) {
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return std::nullopt;
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}
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const auto cookie = xcb_get_property(
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connection,
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false,
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window,
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*desktopAtom,
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XCB_ATOM_CARDINAL,
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0,
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1024);
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const auto reply = base::Platform::XCB::MakeReplyPointer(
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xcb_get_property_reply(
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connection,
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cookie,
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nullptr));
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if (!reply) {
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return std::nullopt;
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}
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return (reply->type == XCB_ATOM_CARDINAL)
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? std::make_optional(
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*reinterpret_cast<ulong*>(xcb_get_property_value(reply.get())))
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: std::nullopt;
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}
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std::optional<bool> XCBIsOverlapped(
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not_null<QWidget*> widget,
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const QRect &rect) {
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const auto window = widget->winId();
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Expects(window != XCB_WINDOW_NONE);
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return std::nullopt;
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}
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const auto root = base::Platform::XCB::GetRootWindow(connection);
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if (!root.has_value()) {
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return std::nullopt;
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}
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const auto windowWorkspace = XCBWindowWorkspace(window);
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const auto currentWorkspace = XCBCurrentWorkspace();
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if (windowWorkspace.has_value()
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&& currentWorkspace.has_value()
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&& *windowWorkspace != *currentWorkspace
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&& *windowWorkspace != 0xFFFFFFFF) {
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return true;
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}
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const auto windowGeometry = XCBWindowGeometry(window);
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if (windowGeometry.isNull()) {
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return std::nullopt;
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}
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const auto mappedRect = QRect(
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rect.topLeft()
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* widget->windowHandle()->devicePixelRatio()
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+ windowGeometry.topLeft(),
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rect.size() * widget->windowHandle()->devicePixelRatio());
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const auto cookie = xcb_query_tree(connection, *root);
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const auto reply = base::Platform::XCB::MakeReplyPointer(
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xcb_query_tree_reply(connection, cookie, nullptr));
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if (!reply) {
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return std::nullopt;
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}
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const auto tree = xcb_query_tree_children(reply.get());
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auto aboveTheWindow = false;
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for (auto i = 0, l = xcb_query_tree_children_length(reply.get()); i < l; ++i) {
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if (window == tree[i]) {
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aboveTheWindow = true;
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continue;
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}
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if (!aboveTheWindow) {
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continue;
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}
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const auto geometry = XCBWindowGeometry(tree[i]);
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if (!mappedRect.intersects(geometry)) {
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continue;
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}
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const auto workspace = XCBWindowWorkspace(tree[i]);
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if (workspace.has_value()
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&& windowWorkspace.has_value()
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&& *workspace != *windowWorkspace
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&& *workspace != 0xFFFFFFFF) {
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continue;
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}
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const auto mapped = XCBWindowMapped(tree[i]);
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if (mapped.has_value() && !*mapped) {
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continue;
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}
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const auto hidden = XCBWindowHidden(tree[i]);
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if (hidden.has_value() && *hidden) {
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continue;
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}
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return true;
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}
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return false;
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}
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void SetXCBFrameExtents(not_null<QWidget*> widget, const QMargins &extents) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return;
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}
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const auto frameExtentsAtom = base::Platform::XCB::GetAtom(
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connection,
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kXCBFrameExtentsAtomName.utf16());
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if (!frameExtentsAtom.has_value()) {
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return;
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}
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const auto nativeExtents = extents
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* widget->windowHandle()->devicePixelRatio();
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const auto extentsVector = std::vector<uint>{
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uint(nativeExtents.left()),
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uint(nativeExtents.right()),
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uint(nativeExtents.top()),
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uint(nativeExtents.bottom()),
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};
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xcb_change_property(
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connection,
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XCB_PROP_MODE_REPLACE,
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widget->winId(),
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*frameExtentsAtom,
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XCB_ATOM_CARDINAL,
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32,
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extentsVector.size(),
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extentsVector.data());
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}
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void UnsetXCBFrameExtents(not_null<QWidget*> widget) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return;
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}
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const auto frameExtentsAtom = base::Platform::XCB::GetAtom(
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connection,
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kXCBFrameExtentsAtomName.utf16());
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if (!frameExtentsAtom.has_value()) {
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return;
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}
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xcb_delete_property(
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connection,
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widget->winId(),
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*frameExtentsAtom);
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}
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void ShowXCBWindowMenu(not_null<QWidget*> widget, const QPoint &point) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return;
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}
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const auto root = base::Platform::XCB::GetRootWindow(connection);
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if (!root.has_value()) {
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return;
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}
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const auto showWindowMenuAtom = base::Platform::XCB::GetAtom(
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connection,
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"_GTK_SHOW_WINDOW_MENU");
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if (!showWindowMenuAtom.has_value()) {
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return;
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}
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const auto windowGeometry = XCBWindowGeometry(widget->winId());
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if (windowGeometry.isNull()) {
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return;
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}
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const auto globalPos = point
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* widget->windowHandle()->devicePixelRatio()
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+ windowGeometry.topLeft();
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xcb_client_message_event_t xev;
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xev.response_type = XCB_CLIENT_MESSAGE;
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xev.type = *showWindowMenuAtom;
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xev.sequence = 0;
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xev.window = widget->winId();
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xev.format = 32;
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xev.data.data32[0] = 0;
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xev.data.data32[1] = globalPos.x();
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xev.data.data32[2] = globalPos.y();
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xev.data.data32[3] = 0;
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xev.data.data32[4] = 0;
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xcb_ungrab_pointer(connection, XCB_CURRENT_TIME);
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xcb_send_event(
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connection,
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false,
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*root,
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XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
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| XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY,
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reinterpret_cast<const char*>(&xev));
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}
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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TitleControls::Control GtkKeywordToTitleControl(const QString &keyword) {
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if (keyword == qstr("minimize")) {
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return TitleControls::Control::Minimize;
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} else if (keyword == qstr("maximize")) {
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return TitleControls::Control::Maximize;
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} else if (keyword == qstr("close")) {
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return TitleControls::Control::Close;
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}
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return TitleControls::Control::Unknown;
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}
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TitleControls::Layout GtkKeywordsToTitleControlsLayout(const QString &keywords) {
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const auto splitted = keywords.split(':');
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std::vector<TitleControls::Control> controlsLeft;
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ranges::transform(
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splitted[0].split(','),
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ranges::back_inserter(controlsLeft),
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GtkKeywordToTitleControl);
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std::vector<TitleControls::Control> controlsRight;
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if (splitted.size() > 1) {
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ranges::transform(
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splitted[1].split(','),
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ranges::back_inserter(controlsRight),
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GtkKeywordToTitleControl);
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}
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return TitleControls::Layout{
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.left = controlsLeft,
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.right = controlsRight
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};
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}
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} // namespace
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bool IsApplicationActive() {
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return QApplication::activeWindow() != nullptr;
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}
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bool TranslucentWindowsSupported() {
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if (::Platform::IsWayland()) {
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return true;
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}
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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if (::Platform::IsX11()) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return false;
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}
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const auto atom = base::Platform::XCB::GetAtom(
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connection,
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"_NET_WM_CM_S0");
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if (!atom) {
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return false;
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}
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const auto cookie = xcb_get_selection_owner(connection, *atom);
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const auto result = base::Platform::XCB::MakeReplyPointer(
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xcb_get_selection_owner_reply(
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connection,
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cookie,
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nullptr));
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if (!result) {
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return false;
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}
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return result->owner;
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}
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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return false;
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}
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void IgnoreAllActivation(not_null<QWidget*> widget) {
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}
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void ClearTransientParent(not_null<QWidget*> widget) {
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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if (::Platform::IsX11()) {
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xcb_delete_property(
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base::Platform::XCB::GetConnectionFromQt(),
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widget->winId(),
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XCB_ATOM_WM_TRANSIENT_FOR);
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}
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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}
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std::optional<bool> IsOverlapped(
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not_null<QWidget*> widget,
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const QRect &rect) {
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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if (::Platform::IsX11()) {
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return XCBIsOverlapped(widget, rect);
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}
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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return std::nullopt;
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}
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bool WindowExtentsSupported() {
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if (const auto integration = WaylandIntegration::Instance()) {
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return integration->windowExtentsSupported();
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}
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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namespace XCB = base::Platform::XCB;
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if (::Platform::IsX11()
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&& XCB::IsSupportedByWM(
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XCB::GetConnectionFromQt(),
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kXCBFrameExtentsAtomName.utf16())) {
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return true;
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}
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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return false;
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}
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void SetWindowExtents(not_null<QWidget*> widget, const QMargins &extents) {
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if (const auto integration = WaylandIntegration::Instance()) {
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integration->setWindowExtents(widget, extents);
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} else if (::Platform::IsX11()) {
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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SetXCBFrameExtents(widget, extents);
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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}
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}
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void UnsetWindowExtents(not_null<QWidget*> widget) {
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if (const auto integration = WaylandIntegration::Instance()) {
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integration->unsetWindowExtents(widget);
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} else if (::Platform::IsX11()) {
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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UnsetXCBFrameExtents(widget);
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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}
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}
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void ShowWindowMenu(not_null<QWidget*> widget, const QPoint &point) {
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if (const auto integration = WaylandIntegration::Instance()) {
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integration->showWindowMenu(widget, point);
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} else if (::Platform::IsX11()) {
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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ShowXCBWindowMenu(widget, point);
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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}
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}
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TitleControls::Layout TitleControlsLayout() {
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[[maybe_unused]] static const auto Inited = [] {
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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using base::Platform::XCB::XSettings;
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if (const auto xSettings = XSettings::Instance()) {
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xSettings->registerCallbackForProperty("Gtk/DecorationLayout", [](
|
|
xcb_connection_t *,
|
|
const QByteArray &,
|
|
const QVariant &,
|
|
void *) {
|
|
NotifyTitleControlsLayoutChanged();
|
|
}, nullptr);
|
|
}
|
|
#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
|
|
|
|
#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
|
|
using XDPSettingWatcher = base::Platform::XDP::SettingWatcher;
|
|
static const XDPSettingWatcher settingWatcher(
|
|
[=](
|
|
const Glib::ustring &group,
|
|
const Glib::ustring &key,
|
|
const Glib::VariantBase &value) {
|
|
if (group == "org.gnome.desktop.wm.preferences"
|
|
&& key == "button-layout") {
|
|
NotifyTitleControlsLayoutChanged();
|
|
}
|
|
});
|
|
#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
|
|
|
|
return true;
|
|
}();
|
|
|
|
#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
|
|
const auto xSettingsResult = []() -> std::optional<TitleControls::Layout> {
|
|
using base::Platform::XCB::XSettings;
|
|
const auto xSettings = XSettings::Instance();
|
|
if (!xSettings) {
|
|
return std::nullopt;
|
|
}
|
|
|
|
const auto decorationLayout = xSettings->setting("Gtk/DecorationLayout");
|
|
if (!decorationLayout.isValid()) {
|
|
return std::nullopt;
|
|
}
|
|
|
|
return GtkKeywordsToTitleControlsLayout(decorationLayout.toString());
|
|
}();
|
|
|
|
if (xSettingsResult.has_value()) {
|
|
return *xSettingsResult;
|
|
}
|
|
#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
|
|
|
|
#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
|
|
const auto portalResult = []() -> std::optional<TitleControls::Layout> {
|
|
try {
|
|
using namespace base::Platform::XDP;
|
|
|
|
const auto decorationLayout = ReadSetting(
|
|
"org.gnome.desktop.wm.preferences",
|
|
"button-layout");
|
|
|
|
if (!decorationLayout.has_value()) {
|
|
return std::nullopt;
|
|
}
|
|
|
|
return GtkKeywordsToTitleControlsLayout(
|
|
QString::fromStdString(
|
|
base::Platform::GlibVariantCast<Glib::ustring>(
|
|
*decorationLayout)));
|
|
} catch (...) {
|
|
}
|
|
|
|
return std::nullopt;
|
|
}();
|
|
|
|
if (portalResult.has_value()) {
|
|
return *portalResult;
|
|
}
|
|
#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
|
|
|
|
return TitleControls::Layout{
|
|
.right = {
|
|
TitleControls::Control::Minimize,
|
|
TitleControls::Control::Maximize,
|
|
TitleControls::Control::Close,
|
|
}
|
|
};
|
|
}
|
|
|
|
} // namespace Platform
|
|
} // namespace Ui
|