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gecko-dev
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gecko-dev/widget/windows/WinTaskbar.cpp

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C++
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/* vim: se cin sw=2 ts=2 et : */
/* -*- Mode: C++; tab-width: 2; 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 "WinTaskbar.h"
#include "TaskbarPreview.h"
#include <nsITaskbarPreviewController.h>
#include <nsError.h>
#include <nsCOMPtr.h>
#include <nsIWidget.h>
#include <nsIBaseWindow.h>
#include <nsIObserverService.h>
#include <nsServiceManagerUtils.h>
#include <nsAutoPtr.h>
#include "nsIXULAppInfo.h"
#include "nsIJumpListBuilder.h"
#include "nsUXThemeData.h"
#include "nsWindow.h"
#include "WinUtils.h"
#include "TaskbarTabPreview.h"
#include "TaskbarWindowPreview.h"
#include "JumpListBuilder.h"
#include "nsWidgetsCID.h"
#include "nsPIDOMWindow.h"
#include "nsAppDirectoryServiceDefs.h"
#include "mozilla/Preferences.h"
#include <io.h>
#include <propvarutil.h>
#include <propkey.h>
#include <shellapi.h>
const PRUnichar kShellLibraryName[] = L"shell32.dll";
static NS_DEFINE_CID(kJumpListBuilderCID, NS_WIN_JUMPLISTBUILDER_CID);
namespace {
HWND
GetHWNDFromDocShell(nsIDocShell *aShell) {
nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(reinterpret_cast<nsISupports*>(aShell)));
if (!baseWindow)
return NULL;
nsCOMPtr<nsIWidget> widget;
baseWindow->GetMainWidget(getter_AddRefs(widget));
return widget ? (HWND)widget->GetNativeData(NS_NATIVE_WINDOW) : NULL;
}
HWND
GetHWNDFromDOMWindow(nsIDOMWindow *dw) {
nsCOMPtr<nsIWidget> widget;
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(dw);
if (!window)
return NULL;
return GetHWNDFromDocShell(window->GetDocShell());
}
nsresult
SetWindowAppUserModelProp(nsIDOMWindow *aParent,
const nsString & aIdentifier) {
NS_ENSURE_ARG_POINTER(aParent);
if (aIdentifier.IsEmpty())
return NS_ERROR_INVALID_ARG;
HWND toplevelHWND = ::GetAncestor(GetHWNDFromDOMWindow(aParent), GA_ROOT);
if (!toplevelHWND)
return NS_ERROR_INVALID_ARG;
typedef HRESULT (WINAPI * SHGetPropertyStoreForWindowPtr)
(HWND hwnd, REFIID riid, void** ppv);
SHGetPropertyStoreForWindowPtr funcGetProStore = nsnull;
HMODULE hDLL = ::LoadLibraryW(kShellLibraryName);
funcGetProStore = (SHGetPropertyStoreForWindowPtr)
GetProcAddress(hDLL, "SHGetPropertyStoreForWindow");
if (!funcGetProStore) {
FreeLibrary(hDLL);
return NS_ERROR_NO_INTERFACE;
}
IPropertyStore* pPropStore;
if (FAILED(funcGetProStore(toplevelHWND,
IID_PPV_ARGS(&pPropStore)))) {
FreeLibrary(hDLL);
return NS_ERROR_INVALID_ARG;
}
PROPVARIANT pv;
if (FAILED(InitPropVariantFromString(aIdentifier.get(), &pv))) {
pPropStore->Release();
FreeLibrary(hDLL);
return NS_ERROR_UNEXPECTED;
}
nsresult rv = NS_OK;
if (FAILED(pPropStore->SetValue(PKEY_AppUserModel_ID, pv)) ||
FAILED(pPropStore->Commit())) {
rv = NS_ERROR_FAILURE;
}
PropVariantClear(&pv);
pPropStore->Release();
FreeLibrary(hDLL);
return rv;
}
///////////////////////////////////////////////////////////////////////////////
// default nsITaskbarPreviewController
class DefaultController MOZ_FINAL : public nsITaskbarPreviewController
{
HWND mWnd;
public:
DefaultController(HWND hWnd)
: mWnd(hWnd)
{
}
NS_DECL_ISUPPORTS
NS_DECL_NSITASKBARPREVIEWCONTROLLER
};
NS_IMETHODIMP
DefaultController::GetWidth(PRUint32 *aWidth)
{
RECT r;
::GetClientRect(mWnd, &r);
*aWidth = r.right;
return NS_OK;
}
NS_IMETHODIMP
DefaultController::GetHeight(PRUint32 *aHeight)
{
RECT r;
::GetClientRect(mWnd, &r);
*aHeight = r.bottom;
return NS_OK;
}
NS_IMETHODIMP
DefaultController::GetThumbnailAspectRatio(float *aThumbnailAspectRatio) {
PRUint32 width, height;
GetWidth(&width);
GetHeight(&height);
if (!height)
height = 1;
*aThumbnailAspectRatio = width/float(height);
return NS_OK;
}
NS_IMETHODIMP
DefaultController::DrawPreview(nsIDOMCanvasRenderingContext2D *ctx, bool *rDrawFrame) {
*rDrawFrame = true;
return NS_OK;
}
NS_IMETHODIMP
DefaultController::DrawThumbnail(nsIDOMCanvasRenderingContext2D *ctx, PRUint32 width, PRUint32 height, bool *rDrawFrame) {
*rDrawFrame = false;
return NS_OK;
}
NS_IMETHODIMP
DefaultController::OnClose(void) {
NS_NOTREACHED("OnClose should not be called for TaskbarWindowPreviews");
return NS_OK;
}
NS_IMETHODIMP
DefaultController::OnActivate(bool *rAcceptActivation) {
*rAcceptActivation = true;
NS_NOTREACHED("OnActivate should not be called for TaskbarWindowPreviews");
return NS_OK;
}
NS_IMETHODIMP
DefaultController::OnClick(nsITaskbarPreviewButton *button) {
return NS_OK;
}
NS_IMPL_ISUPPORTS1(DefaultController, nsITaskbarPreviewController);
}
namespace mozilla {
namespace widget {
///////////////////////////////////////////////////////////////////////////////
// nsIWinTaskbar
NS_IMPL_THREADSAFE_ISUPPORTS1(WinTaskbar, nsIWinTaskbar)
bool
WinTaskbar::Initialize() {
if (mTaskbar)
return true;
::CoInitialize(NULL);
HRESULT hr = ::CoCreateInstance(CLSID_TaskbarList,
NULL,
CLSCTX_INPROC_SERVER,
IID_ITaskbarList4,
(void**)&mTaskbar);
if (FAILED(hr))
return false;
hr = mTaskbar->HrInit();
if (FAILED(hr)) {
NS_WARNING("Unable to initialize taskbar");
NS_RELEASE(mTaskbar);
return false;
}
return true;
}
WinTaskbar::WinTaskbar()
: mTaskbar(nsnull) {
}
WinTaskbar::~WinTaskbar() {
if (mTaskbar) { // match successful Initialize() call
NS_RELEASE(mTaskbar);
::CoUninitialize();
}
}
// static
bool
WinTaskbar::GetAppUserModelID(nsAString & aDefaultGroupId) {
// If marked as such in prefs, use a hash of the profile path for the id
// instead of the install path hash setup by the installer.
bool useProfile =
Preferences::GetBool("taskbar.grouping.useprofile", false);
if (useProfile) {
nsCOMPtr<nsIFile> profileDir;
NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
getter_AddRefs(profileDir));
bool exists = false;
if (profileDir && NS_SUCCEEDED(profileDir->Exists(&exists)) && exists) {
nsCAutoString path;
if (NS_SUCCEEDED(profileDir->GetNativePath(path))) {
nsAutoString id;
id.AppendInt(HashString(path));
if (!id.IsEmpty()) {
aDefaultGroupId.Assign(id);
return true;
}
}
}
}
// The default value is set by the installer and is stored in the registry
// under (HKLM||HKCU)/Software/Mozilla/Firefox/TaskBarIDs. If for any reason
// hash generation operation fails, the installer will not store a value in
// the registry or set ids on shortcuts. A lack of an id can also occur for
// zipped builds. We skip setting the global id in this case as well.
nsCOMPtr<nsIXULAppInfo> appInfo =
do_GetService("@mozilla.org/xre/app-info;1");
if (!appInfo)
return false;
nsCString appName;
if (NS_FAILED(appInfo->GetName(appName))) {
// We just won't register then, let Windows handle it.
return false;
}
nsAutoString regKey;
regKey.AssignLiteral("Software\\Mozilla\\");
AppendASCIItoUTF16(appName, regKey);
regKey.AppendLiteral("\\TaskBarIDs");
WCHAR path[MAX_PATH];
if (GetModuleFileNameW(NULL, path, MAX_PATH)) {
PRUnichar* slash = wcsrchr(path, '\\');
if (!slash)
return false;
*slash = '\0'; // no trailing slash
// The hash is short, but users may customize this, so use a respectable
// string buffer.
PRUnichar buf[256];
if (WinUtils::GetRegistryKey(HKEY_LOCAL_MACHINE,
regKey.get(),
path,
buf,
sizeof buf)) {
aDefaultGroupId.Assign(buf);
} else if (WinUtils::GetRegistryKey(HKEY_CURRENT_USER,
regKey.get(),
path,
buf,
sizeof buf)) {
aDefaultGroupId.Assign(buf);
}
}
return !aDefaultGroupId.IsEmpty();
return true;
}
/* readonly attribute AString defaultGroupId; */
NS_IMETHODIMP
WinTaskbar::GetDefaultGroupId(nsAString & aDefaultGroupId) {
if (!GetAppUserModelID(aDefaultGroupId))
return NS_ERROR_UNEXPECTED;
return NS_OK;
}
// (static) Called from AppShell
bool
WinTaskbar::RegisterAppUserModelID() {
if (WinUtils::GetWindowsVersion() < WinUtils::WIN7_VERSION)
return false;
SetCurrentProcessExplicitAppUserModelIDPtr funcAppUserModelID = nsnull;
bool retVal = false;
nsAutoString uid;
if (!GetAppUserModelID(uid))
return false;
HMODULE hDLL = ::LoadLibraryW(kShellLibraryName);
funcAppUserModelID = (SetCurrentProcessExplicitAppUserModelIDPtr)
GetProcAddress(hDLL, "SetCurrentProcessExplicitAppUserModelID");
if (!funcAppUserModelID) {
::FreeLibrary(hDLL);
return false;
}
if (SUCCEEDED(funcAppUserModelID(uid.get())))
retVal = true;
if (hDLL)
::FreeLibrary(hDLL);
return retVal;
}
NS_IMETHODIMP
WinTaskbar::GetAvailable(bool *aAvailable) {
*aAvailable =
WinUtils::GetWindowsVersion() < WinUtils::WIN7_VERSION ?
false : true;
return NS_OK;
}
NS_IMETHODIMP
WinTaskbar::CreateTaskbarTabPreview(nsIDocShell *shell, nsITaskbarPreviewController *controller, nsITaskbarTabPreview **_retval) {
if (!Initialize())
return NS_ERROR_NOT_AVAILABLE;
NS_ENSURE_ARG_POINTER(shell);
NS_ENSURE_ARG_POINTER(controller);
HWND toplevelHWND = ::GetAncestor(GetHWNDFromDocShell(shell), GA_ROOT);
if (!toplevelHWND)
return NS_ERROR_INVALID_ARG;
nsRefPtr<TaskbarTabPreview> preview(new TaskbarTabPreview(mTaskbar, controller, toplevelHWND, shell));
if (!preview)
return NS_ERROR_OUT_OF_MEMORY;
preview.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
WinTaskbar::GetTaskbarWindowPreview(nsIDocShell *shell, nsITaskbarWindowPreview **_retval) {
if (!Initialize())
return NS_ERROR_NOT_AVAILABLE;
NS_ENSURE_ARG_POINTER(shell);
HWND toplevelHWND = ::GetAncestor(GetHWNDFromDocShell(shell), GA_ROOT);
if (!toplevelHWND)
return NS_ERROR_INVALID_ARG;
nsWindow *window = WinUtils::GetNSWindowPtr(toplevelHWND);
if (!window)
return NS_ERROR_FAILURE;
nsCOMPtr<nsITaskbarWindowPreview> preview = window->GetTaskbarPreview();
if (!preview) {
nsRefPtr<DefaultController> defaultController = new DefaultController(toplevelHWND);
preview = new TaskbarWindowPreview(mTaskbar, defaultController, toplevelHWND, shell);
if (!preview)
return NS_ERROR_OUT_OF_MEMORY;
window->SetTaskbarPreview(preview);
}
preview.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
WinTaskbar::GetTaskbarProgress(nsIDocShell *shell, nsITaskbarProgress **_retval) {
nsCOMPtr<nsITaskbarWindowPreview> preview;
nsresult rv = GetTaskbarWindowPreview(shell, getter_AddRefs(preview));
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(preview, _retval);
}
NS_IMETHODIMP
WinTaskbar::GetOverlayIconController(nsIDocShell *shell,
nsITaskbarOverlayIconController **_retval) {
nsCOMPtr<nsITaskbarWindowPreview> preview;
nsresult rv = GetTaskbarWindowPreview(shell, getter_AddRefs(preview));
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(preview, _retval);
}
/* nsIJumpListBuilder createJumpListBuilder(); */
NS_IMETHODIMP
WinTaskbar::CreateJumpListBuilder(nsIJumpListBuilder * *aJumpListBuilder) {
nsresult rv;
if (JumpListBuilder::sBuildingList)
return NS_ERROR_ALREADY_INITIALIZED;
nsCOMPtr<nsIJumpListBuilder> builder =
do_CreateInstance(kJumpListBuilderCID, &rv);
if (NS_FAILED(rv))
return NS_ERROR_UNEXPECTED;
NS_IF_ADDREF(*aJumpListBuilder = builder);
return NS_OK;
}
/* void setGroupIdForWindow (in nsIDOMWindow aParent, in AString aIdentifier); */
NS_IMETHODIMP
WinTaskbar::SetGroupIdForWindow(nsIDOMWindow *aParent,
const nsAString & aIdentifier) {
return SetWindowAppUserModelProp(aParent, nsString(aIdentifier));
}
/* void prepareFullScreen(in nsIDOMWindow aWindow, in boolean aFullScreen); */
NS_IMETHODIMP
WinTaskbar::PrepareFullScreen(nsIDOMWindow *aWindow, bool aFullScreen) {
NS_ENSURE_ARG_POINTER(aWindow);
HWND toplevelHWND = ::GetAncestor(GetHWNDFromDOMWindow(aWindow), GA_ROOT);
if (!toplevelHWND)
return NS_ERROR_INVALID_ARG;
return PrepareFullScreenHWND(toplevelHWND, aFullScreen);
}
/* void prepareFullScreen(in voidPtr aWindow, in boolean aFullScreen); */
NS_IMETHODIMP
WinTaskbar::PrepareFullScreenHWND(void *aHWND, bool aFullScreen) {
if (!Initialize())
return NS_ERROR_NOT_AVAILABLE;
NS_ENSURE_ARG_POINTER(aHWND);
if (!::IsWindow((HWND)aHWND))
return NS_ERROR_INVALID_ARG;
HRESULT hr = mTaskbar->MarkFullscreenWindow((HWND)aHWND, aFullScreen);
if (FAILED(hr)) {
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
} // namespace widget
} // namespace mozilla
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