mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
cff722a4af
- Created a new detail namespace - Moved shared module implementation details into the detail namespace - Split dependencies so source files only rely on details in the detail namespace - Removed all code from the juce_gui_basics.cpp file
136 lines
3.5 KiB
C++
136 lines
3.5 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2022 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 7 End-User License
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Agreement and JUCE Privacy Policy.
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End User License Agreement: www.juce.com/juce-7-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce::detail
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{
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/** Keeps track of the active top level window. */
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class TopLevelWindowManager : private Timer,
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private DeletedAtShutdown
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{
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public:
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TopLevelWindowManager() = default;
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~TopLevelWindowManager() override
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{
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clearSingletonInstance();
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}
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JUCE_DECLARE_SINGLETON_SINGLETHREADED_MINIMAL (TopLevelWindowManager)
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static void checkCurrentlyFocusedTopLevelWindow()
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{
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if (auto* wm = TopLevelWindowManager::getInstanceWithoutCreating())
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wm->checkFocusAsync();
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}
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void checkFocusAsync()
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{
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startTimer (10);
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}
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void checkFocus()
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{
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startTimer (jmin (1731, getTimerInterval() * 2));
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auto* newActive = findCurrentlyActiveWindow();
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if (newActive != currentActive)
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{
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currentActive = newActive;
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for (int i = windows.size(); --i >= 0;)
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if (auto* tlw = windows[i])
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tlw->setWindowActive (isWindowActive (tlw));
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Desktop::getInstance().triggerFocusCallback();
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}
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}
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bool addWindow (TopLevelWindow* const w)
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{
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windows.add (w);
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checkFocusAsync();
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return isWindowActive (w);
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}
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void removeWindow (TopLevelWindow* const w)
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{
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checkFocusAsync();
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if (currentActive == w)
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currentActive = nullptr;
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windows.removeFirstMatchingValue (w);
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if (windows.isEmpty())
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deleteInstance();
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}
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Array<TopLevelWindow*> windows;
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private:
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TopLevelWindow* currentActive = nullptr;
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void timerCallback() override
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{
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checkFocus();
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}
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bool isWindowActive (TopLevelWindow* const tlw) const
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{
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return (tlw == currentActive
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|| tlw->isParentOf (currentActive)
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|| tlw->hasKeyboardFocus (true))
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&& tlw->isShowing();
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}
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TopLevelWindow* findCurrentlyActiveWindow() const
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{
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if (Process::isForegroundProcess())
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{
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auto* focusedComp = Component::getCurrentlyFocusedComponent();
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auto* w = dynamic_cast<TopLevelWindow*> (focusedComp);
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if (w == nullptr && focusedComp != nullptr)
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w = focusedComp->findParentComponentOfClass<TopLevelWindow>();
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if (w == nullptr)
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w = currentActive;
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if (w != nullptr && w->isShowing())
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return w;
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}
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return nullptr;
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}
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JUCE_DECLARE_NON_COPYABLE (TopLevelWindowManager)
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};
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JUCE_IMPLEMENT_SINGLETON (TopLevelWindowManager)
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} // namespace juce::detail
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