зеркало из https://github.com/mozilla/gecko-dev.git
286 строки
8.3 KiB
C++
286 строки
8.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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#include "MetroAppShell.h"
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#include "nsXULAppAPI.h"
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#include "mozilla/widget/AudioSession.h"
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#include "MetroUtils.h"
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#include "MetroApp.h"
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#include "nsIObserverService.h"
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#include "nsServiceManagerUtils.h"
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#include "WinUtils.h"
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using namespace mozilla::widget;
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using namespace mozilla::widget::winrt;
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using namespace Microsoft::WRL;
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using namespace Microsoft::WRL::Wrappers;
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using namespace ABI::Windows::UI::Core;
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using namespace ABI::Windows::Foundation;
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namespace mozilla {
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namespace widget {
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namespace winrt {
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extern ComPtr<MetroApp> sMetroApp;
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} } }
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const PRUnichar* kMetroAppShellEventId = L"nsAppShell:EventID";
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static UINT sShellEventMsgID;
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static ComPtr<ICoreWindowStatic> sCoreStatic;
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MetroAppShell::~MetroAppShell()
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{
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if (mEventWnd) {
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SendMessage(mEventWnd, WM_CLOSE, 0, 0);
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}
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}
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nsresult
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MetroAppShell::Init()
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{
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LogFunction();
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WNDCLASSW wc;
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HINSTANCE module = GetModuleHandle(NULL);
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sShellEventMsgID = RegisterWindowMessageW(kMetroAppShellEventId);
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const PRUnichar *const kWindowClass = L"nsAppShell:EventWindowClass";
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if (!GetClassInfoW(module, kWindowClass, &wc)) {
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wc.style = 0;
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wc.lpfnWndProc = EventWindowProc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = module;
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wc.hIcon = NULL;
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wc.hCursor = NULL;
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wc.hbrBackground = (HBRUSH) NULL;
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wc.lpszMenuName = (LPCWSTR) NULL;
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wc.lpszClassName = kWindowClass;
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RegisterClassW(&wc);
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}
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mEventWnd = CreateWindowW(kWindowClass, L"nsAppShell:EventWindow",
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0, 0, 0, 10, 10, NULL, NULL, module, NULL);
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NS_ENSURE_STATE(mEventWnd);
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nsresult rv;
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nsCOMPtr<nsIObserverService> observerService =
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do_GetService("@mozilla.org/observer-service;1", &rv);
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if (NS_SUCCEEDED(rv)) {
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observerService->AddObserver(this, "dl-start", false);
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observerService->AddObserver(this, "dl-done", false);
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observerService->AddObserver(this, "dl-cancel", false);
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observerService->AddObserver(this, "dl-failed", false);
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}
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return nsBaseAppShell::Init();
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}
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// Called by appstartup->run in xre, which is initiated by a call to
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// XRE_metroStartup in MetroApp. This call is on the metro main thread.
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NS_IMETHODIMP
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MetroAppShell::Run(void)
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{
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LogFunction();
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nsresult rv = NS_OK;
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switch(XRE_GetProcessType()) {
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case GeckoProcessType_Content:
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case GeckoProcessType_IPDLUnitTest:
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mozilla::widget::StartAudioSession();
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rv = nsBaseAppShell::Run();
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mozilla::widget::StopAudioSession();
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break;
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case GeckoProcessType_Plugin:
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NS_WARNING("We don't support plugins currently.");
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// Just exit
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rv = NS_ERROR_NOT_IMPLEMENTED;
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break;
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case GeckoProcessType_Default:
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// Nothing to do, just return.
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break;
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}
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return rv;
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}
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static void
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ProcessNativeEvents(CoreProcessEventsOption eventOption)
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{
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HRESULT hr;
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if (!sCoreStatic) {
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hr = GetActivationFactory(HStringReference(L"Windows.UI.Core.CoreWindow").Get(), sCoreStatic.GetAddressOf());
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NS_ASSERTION(SUCCEEDED(hr), "GetActivationFactory failed?");
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AssertHRESULT(hr);
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}
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ComPtr<ICoreWindow> window;
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AssertHRESULT(sCoreStatic->GetForCurrentThread(window.GetAddressOf()));
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ComPtr<ICoreDispatcher> dispatcher;
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hr = window->get_Dispatcher(&dispatcher);
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NS_ASSERTION(SUCCEEDED(hr), "get_Dispatcher failed?");
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AssertHRESULT(hr);
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dispatcher->ProcessEvents(eventOption);
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}
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void
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MetroAppShell::ProcessOneNativeEventIfPresent()
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{
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ProcessNativeEvents(CoreProcessEventsOption::CoreProcessEventsOption_ProcessOneIfPresent);
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}
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void
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MetroAppShell::ProcessAllNativeEventsPresent()
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{
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ProcessNativeEvents(CoreProcessEventsOption::CoreProcessEventsOption_ProcessAllIfPresent);
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}
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bool
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MetroAppShell::ProcessNextNativeEvent(bool mayWait)
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{
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MSG msg;
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if (mayWait) {
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if (!WinUtils::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
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WinUtils::WaitForMessage();
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}
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ProcessOneNativeEventIfPresent();
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return true;
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}
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if (WinUtils::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
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ProcessOneNativeEventIfPresent();
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return true;
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}
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return false;
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}
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// Results from a call to appstartup->quit, which fires a final nsAppExitEvent
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// event which calls us here. This is on the metro main thread. We want to
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// call xpcom shutdown here, but we need to wait until the runnable that fires
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// this is off the stack. See NativeEventCallback below.
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NS_IMETHODIMP
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MetroAppShell::Exit(void)
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{
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LogFunction();
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mExiting = true;
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return NS_OK;
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}
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void
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MetroAppShell::NativeCallback()
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{
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NS_ASSERTION(NS_IsMainThread(), "Native callbacks must be on the metro main thread");
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NativeEventCallback();
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// Handle shutdown after Exit() is called and unwinds.
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if (mExiting) {
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// shutdown fires events, don't recurse
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static bool sShutdown = false;
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if (sShutdown)
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return;
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sShutdown = true;
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if (sMetroApp) {
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// This calls XRE_metroShutdown() in xre
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sMetroApp->ShutdownXPCOM();
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// This will free the real main thread in CoreApplication::Run()
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// once winrt cleans up this thread.
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sMetroApp->CoreExit();
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}
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}
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}
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// static
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LRESULT CALLBACK
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MetroAppShell::EventWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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if (uMsg == sShellEventMsgID) {
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MetroAppShell *as = reinterpret_cast<MetroAppShell *>(lParam);
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as->NativeCallback();
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NS_RELEASE(as);
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return TRUE;
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}
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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void
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MetroAppShell::ScheduleNativeEventCallback()
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{
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NS_ADDREF_THIS();
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PostMessage(mEventWnd, sShellEventMsgID, 0, reinterpret_cast<LPARAM>(this));
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}
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void
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MetroAppShell::DoProcessMoreGeckoEvents()
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{
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ScheduleNativeEventCallback();
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}
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static HANDLE
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PowerCreateRequestDyn(REASON_CONTEXT *context)
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{
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typedef HANDLE (WINAPI * PowerCreateRequestPtr)(REASON_CONTEXT *context);
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static HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
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static PowerCreateRequestPtr powerCreateRequest =
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(PowerCreateRequestPtr)GetProcAddress(kernel32, "PowerCreateRequest");
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if (!powerCreateRequest)
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return INVALID_HANDLE_VALUE;
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return powerCreateRequest(context);
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}
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static BOOL
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PowerClearRequestDyn(HANDLE powerRequest, POWER_REQUEST_TYPE requestType)
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{
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typedef BOOL (WINAPI * PowerClearRequestPtr)(HANDLE powerRequest, POWER_REQUEST_TYPE requestType);
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static HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
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static PowerClearRequestPtr powerClearRequest =
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(PowerClearRequestPtr)GetProcAddress(kernel32, "PowerClearRequest");
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if (!powerClearRequest)
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return FALSE;
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return powerClearRequest(powerRequest, requestType);
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}
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static BOOL
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PowerSetRequestDyn(HANDLE powerRequest, POWER_REQUEST_TYPE requestType)
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{
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typedef BOOL (WINAPI * PowerSetRequestPtr)(HANDLE powerRequest, POWER_REQUEST_TYPE requestType);
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static HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
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static PowerSetRequestPtr powerSetRequest =
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(PowerSetRequestPtr)GetProcAddress(kernel32, "PowerSetRequest");
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if (!powerSetRequest)
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return FALSE;
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return powerSetRequest(powerRequest, requestType);
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}
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NS_IMETHODIMP
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MetroAppShell::Observe(nsISupports *subject, const char *topic,
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const PRUnichar *data)
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{
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NS_ENSURE_ARG_POINTER(topic);
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if (!strcmp(topic, "dl-start")) {
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if (mPowerRequestCount++ == 0) {
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Log("Download started - Disallowing suspend");
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REASON_CONTEXT context;
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context.Version = POWER_REQUEST_CONTEXT_VERSION;
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context.Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING;
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context.Reason.SimpleReasonString = L"downloading";
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mPowerRequest.own(PowerCreateRequestDyn(&context));
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PowerSetRequestDyn(mPowerRequest, PowerRequestExecutionRequired);
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}
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return NS_OK;
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} else if (!strcmp(topic, "dl-done") ||
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!strcmp(topic, "dl-cancel") ||
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!strcmp(topic, "dl-failed")) {
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if (--mPowerRequestCount == 0 && mPowerRequest) {
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Log("All downloads ended - Allowing suspend");
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PowerClearRequestDyn(mPowerRequest, PowerRequestExecutionRequired);
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mPowerRequest.reset();
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}
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return NS_OK;
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}
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return nsBaseAppShell::Observe(subject, topic, data);
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}
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