gecko/widget/windows/winrt/MetroAppShell.cpp

286 lines
8.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MetroAppShell.h"
#include "nsXULAppAPI.h"
#include "mozilla/widget/AudioSession.h"
#include "MetroUtils.h"
#include "MetroApp.h"
#include "nsIObserverService.h"
#include "nsServiceManagerUtils.h"
#include "WinUtils.h"
using namespace mozilla::widget;
using namespace mozilla::widget::winrt;
using namespace Microsoft::WRL;
using namespace Microsoft::WRL::Wrappers;
using namespace ABI::Windows::UI::Core;
using namespace ABI::Windows::Foundation;
namespace mozilla {
namespace widget {
namespace winrt {
extern ComPtr<MetroApp> sMetroApp;
} } }
const PRUnichar* kMetroAppShellEventId = L"nsAppShell:EventID";
static UINT sShellEventMsgID;
static ComPtr<ICoreWindowStatic> sCoreStatic;
MetroAppShell::~MetroAppShell()
{
if (mEventWnd) {
SendMessage(mEventWnd, WM_CLOSE, 0, 0);
}
}
nsresult
MetroAppShell::Init()
{
LogFunction();
WNDCLASSW wc;
HINSTANCE module = GetModuleHandle(NULL);
sShellEventMsgID = RegisterWindowMessageW(kMetroAppShellEventId);
const PRUnichar *const kWindowClass = L"nsAppShell:EventWindowClass";
if (!GetClassInfoW(module, kWindowClass, &wc)) {
wc.style = 0;
wc.lpfnWndProc = EventWindowProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = module;
wc.hIcon = NULL;
wc.hCursor = NULL;
wc.hbrBackground = (HBRUSH) NULL;
wc.lpszMenuName = (LPCWSTR) NULL;
wc.lpszClassName = kWindowClass;
RegisterClassW(&wc);
}
mEventWnd = CreateWindowW(kWindowClass, L"nsAppShell:EventWindow",
0, 0, 0, 10, 10, NULL, NULL, module, NULL);
NS_ENSURE_STATE(mEventWnd);
nsresult rv;
nsCOMPtr<nsIObserverService> observerService =
do_GetService("@mozilla.org/observer-service;1", &rv);
if (NS_SUCCEEDED(rv)) {
observerService->AddObserver(this, "dl-start", false);
observerService->AddObserver(this, "dl-done", false);
observerService->AddObserver(this, "dl-cancel", false);
observerService->AddObserver(this, "dl-failed", false);
}
return nsBaseAppShell::Init();
}
// Called by appstartup->run in xre, which is initiated by a call to
// XRE_metroStartup in MetroApp. This call is on the metro main thread.
NS_IMETHODIMP
MetroAppShell::Run(void)
{
LogFunction();
nsresult rv = NS_OK;
switch(XRE_GetProcessType()) {
case GeckoProcessType_Content:
case GeckoProcessType_IPDLUnitTest:
mozilla::widget::StartAudioSession();
rv = nsBaseAppShell::Run();
mozilla::widget::StopAudioSession();
break;
case GeckoProcessType_Plugin:
NS_WARNING("We don't support plugins currently.");
// Just exit
rv = NS_ERROR_NOT_IMPLEMENTED;
break;
case GeckoProcessType_Default:
// Nothing to do, just return.
break;
}
return rv;
}
static void
ProcessNativeEvents(CoreProcessEventsOption eventOption)
{
HRESULT hr;
if (!sCoreStatic) {
hr = GetActivationFactory(HStringReference(L"Windows.UI.Core.CoreWindow").Get(), sCoreStatic.GetAddressOf());
NS_ASSERTION(SUCCEEDED(hr), "GetActivationFactory failed?");
AssertHRESULT(hr);
}
ComPtr<ICoreWindow> window;
AssertHRESULT(sCoreStatic->GetForCurrentThread(window.GetAddressOf()));
ComPtr<ICoreDispatcher> dispatcher;
hr = window->get_Dispatcher(&dispatcher);
NS_ASSERTION(SUCCEEDED(hr), "get_Dispatcher failed?");
AssertHRESULT(hr);
dispatcher->ProcessEvents(eventOption);
}
void
MetroAppShell::ProcessOneNativeEventIfPresent()
{
ProcessNativeEvents(CoreProcessEventsOption::CoreProcessEventsOption_ProcessOneIfPresent);
}
void
MetroAppShell::ProcessAllNativeEventsPresent()
{
ProcessNativeEvents(CoreProcessEventsOption::CoreProcessEventsOption_ProcessAllIfPresent);
}
bool
MetroAppShell::ProcessNextNativeEvent(bool mayWait)
{
MSG msg;
if (mayWait) {
if (!WinUtils::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
WaitMessage();
}
ProcessOneNativeEventIfPresent();
return true;
}
if (WinUtils::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
ProcessOneNativeEventIfPresent();
return true;
}
return false;
}
// Results from a call to appstartup->quit, which fires a final nsAppExitEvent
// event which calls us here. This is on the metro main thread. We want to
// call xpcom shutdown here, but we need to wait until the runnable that fires
// this is off the stack. See NativeEventCallback below.
NS_IMETHODIMP
MetroAppShell::Exit(void)
{
LogFunction();
mExiting = true;
return NS_OK;
}
void
MetroAppShell::NativeCallback()
{
NS_ASSERTION(NS_IsMainThread(), "Native callbacks must be on the metro main thread");
NativeEventCallback();
// Handle shutdown after Exit() is called and unwinds.
if (mExiting) {
// shutdown fires events, don't recurse
static bool sShutdown = false;
if (sShutdown)
return;
sShutdown = true;
if (sMetroApp) {
// This calls XRE_metroShutdown() in xre
sMetroApp->ShutdownXPCOM();
// This will free the real main thread in CoreApplication::Run()
// once winrt cleans up this thread.
sMetroApp->CoreExit();
}
}
}
// static
LRESULT CALLBACK
MetroAppShell::EventWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
if (uMsg == sShellEventMsgID) {
MetroAppShell *as = reinterpret_cast<MetroAppShell *>(lParam);
as->NativeCallback();
NS_RELEASE(as);
return TRUE;
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
void
MetroAppShell::ScheduleNativeEventCallback()
{
NS_ADDREF_THIS();
PostMessage(mEventWnd, sShellEventMsgID, 0, reinterpret_cast<LPARAM>(this));
}
void
MetroAppShell::DoProcessMoreGeckoEvents()
{
ScheduleNativeEventCallback();
}
static HANDLE
PowerCreateRequestDyn(REASON_CONTEXT *context)
{
typedef HANDLE (WINAPI * PowerCreateRequestPtr)(REASON_CONTEXT *context);
static HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
static PowerCreateRequestPtr powerCreateRequest =
(PowerCreateRequestPtr)GetProcAddress(kernel32, "PowerCreateRequest");
if (!powerCreateRequest)
return INVALID_HANDLE_VALUE;
return powerCreateRequest(context);
}
static BOOL
PowerClearRequestDyn(HANDLE powerRequest, POWER_REQUEST_TYPE requestType)
{
typedef BOOL (WINAPI * PowerClearRequestPtr)(HANDLE powerRequest, POWER_REQUEST_TYPE requestType);
static HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
static PowerClearRequestPtr powerClearRequest =
(PowerClearRequestPtr)GetProcAddress(kernel32, "PowerClearRequest");
if (!powerClearRequest)
return FALSE;
return powerClearRequest(powerRequest, requestType);
}
static BOOL
PowerSetRequestDyn(HANDLE powerRequest, POWER_REQUEST_TYPE requestType)
{
typedef BOOL (WINAPI * PowerSetRequestPtr)(HANDLE powerRequest, POWER_REQUEST_TYPE requestType);
static HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
static PowerSetRequestPtr powerSetRequest =
(PowerSetRequestPtr)GetProcAddress(kernel32, "PowerSetRequest");
if (!powerSetRequest)
return FALSE;
return powerSetRequest(powerRequest, requestType);
}
NS_IMETHODIMP
MetroAppShell::Observe(nsISupports *subject, const char *topic,
const PRUnichar *data)
{
NS_ENSURE_ARG_POINTER(topic);
if (!strcmp(topic, "dl-start")) {
if (mPowerRequestCount++ == 0) {
Log("Download started - Disallowing suspend");
REASON_CONTEXT context;
context.Version = POWER_REQUEST_CONTEXT_VERSION;
context.Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING;
context.Reason.SimpleReasonString = L"downloading";
mPowerRequest.own(PowerCreateRequestDyn(&context));
PowerSetRequestDyn(mPowerRequest, PowerRequestExecutionRequired);
}
return NS_OK;
} else if (!strcmp(topic, "dl-done") ||
!strcmp(topic, "dl-cancel") ||
!strcmp(topic, "dl-failed")) {
if (--mPowerRequestCount == 0 && mPowerRequest) {
Log("All downloads ended - Allowing suspend");
PowerClearRequestDyn(mPowerRequest, PowerRequestExecutionRequired);
mPowerRequest.reset();
}
return NS_OK;
}
return nsBaseAppShell::Observe(subject, topic, data);
}