afb81b8278
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85 lines
2.0 KiB
C++
85 lines
2.0 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 "base/power_save_blocker.h"
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#include "base/platform/base_platform_power_save_blocker.h"
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#include <QtCore/QMutex>
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#include <QtGui/QWindow>
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namespace base {
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namespace {
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struct BlockersSet {
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flat_set<not_null<PowerSaveBlocker*>> list;
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QPointer<QWindow> window;
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QString description;
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};
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flat_map<PowerSaveBlockType, BlockersSet> Blockers;
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QMutex Mutex;
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void Add(not_null<PowerSaveBlocker*> blocker) {
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const auto lock = QMutexLocker(&Mutex);
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auto &set = Blockers[blocker->type()];
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if (set.list.empty()) {
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set.description = blocker->description();
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set.window = blocker->window();
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Platform::BlockPowerSave(
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blocker->type(),
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set.description,
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set.window);
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}
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set.list.emplace(blocker);
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}
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void Remove(not_null<PowerSaveBlocker*> blocker) {
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const auto lock = QMutexLocker(&Mutex);
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auto &set = Blockers[blocker->type()];
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set.list.remove(blocker);
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if (set.description != blocker->description()
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|| set.window != blocker->window()) {
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return;
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}
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Platform::UnblockPowerSave(blocker->type(), blocker->window());
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if (!set.list.empty()) {
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const auto good = ranges::find_if(set.list, [](
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not_null<PowerSaveBlocker*> blocker) {
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return blocker->window() != nullptr;
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});
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const auto use = (good != end(set.list)) ? good : begin(set.list);
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set.description = (*use)->description();
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set.window = (*use)->window();
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Platform::BlockPowerSave(
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blocker->type(),
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set.description,
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set.window);
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}
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}
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} // namespace
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PowerSaveBlocker::PowerSaveBlocker(
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PowerSaveBlockType type,
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const QString &description,
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QWindow *window)
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: _type(type)
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, _description(description)
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, _window(window) {
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Add(this);
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}
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QPointer<QWindow> PowerSaveBlocker::window() const {
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return _window;
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}
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PowerSaveBlocker::~PowerSaveBlocker() {
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Remove(this);
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}
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} // namespace base
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