forked from mirrors/gecko-dev
9c0c057f3c
When we call nsWindow::Show but Firefox is not foreground, we show the window and also flash it on the taskbar to get the user's attention. This is really annoying when restoring a session with `N` windows, as the user's taskbar ends up with all `N` of them stuck in a flashed state until the user goes through and manually activates every single window. There are several ways I thought of to address this, but I think the simplest one is just to track whether or not we're in the middle of restoring a session and skip flashing when we are doing so. Differential Revision: https://phabricator.services.mozilla.com/D76406
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsAppShell_h__
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#define nsAppShell_h__
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#include "nsBaseAppShell.h"
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#include <windows.h>
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#include <vector>
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#include "mozilla/TimeStamp.h"
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#include "mozilla/Mutex.h"
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// The maximum time we allow before forcing a native event callback.
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// In seconds.
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#define NATIVE_EVENT_STARVATION_LIMIT 1
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/**
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* Native Win32 Application shell wrapper
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*/
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class nsAppShell : public nsBaseAppShell {
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public:
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nsAppShell()
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: mEventWnd(nullptr),
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mNativeCallbackPending(false),
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mLastNativeEventScheduledMutex(
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"nsAppShell::mLastNativeEventScheduledMutex") {}
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typedef mozilla::TimeStamp TimeStamp;
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typedef mozilla::Mutex Mutex;
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nsresult Init();
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void DoProcessMoreGeckoEvents();
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static UINT GetTaskbarButtonCreatedMessage();
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NS_IMETHOD AfterProcessNextEvent(nsIThreadInternal* thread,
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bool eventWasProcessed) final;
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protected:
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NS_IMETHOD Run() override;
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NS_IMETHOD Exit() override;
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NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,
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const char16_t* aData) override;
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virtual void ScheduleNativeEventCallback();
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virtual bool ProcessNextNativeEvent(bool mayWait);
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virtual ~nsAppShell();
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static LRESULT CALLBACK EventWindowProc(HWND, UINT, WPARAM, LPARAM);
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protected:
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HWND mEventWnd;
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bool mNativeCallbackPending;
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Mutex mLastNativeEventScheduledMutex;
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TimeStamp mLastNativeEventScheduled;
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std::vector<MSG> mMsgsToRepost;
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};
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#endif // nsAppShell_h__
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