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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
#include "mozilla/ArrayUtils.h"
#include <nsITaskbarPreviewController.h>
#include "TaskbarWindowPreview.h"
#include "WindowHook.h"
#include "nsUXThemeData.h"
#include "TaskbarPreviewButton.h"
#include "nsWindow.h"
#include "nsWindowGfx.h"
namespace mozilla {
namespace widget {
namespace {
bool WindowHookProc(void* aContext, HWND hWnd, UINT nMsg, WPARAM wParam,
LPARAM lParam, LRESULT* aResult) {
TaskbarWindowPreview* preview =
reinterpret_cast<TaskbarWindowPreview*>(aContext);
*aResult = preview->WndProc(nMsg, wParam, lParam);
return true;
}
} // namespace
NS_IMPL_ISUPPORTS(TaskbarWindowPreview, nsITaskbarWindowPreview,
nsITaskbarProgress, nsITaskbarOverlayIconController,
nsISupportsWeakReference)
/**
* These correspond directly to the states defined in nsITaskbarProgress.idl, so
* they should be kept in sync.
*/
static TBPFLAG sNativeStates[] = {TBPF_NOPROGRESS, TBPF_INDETERMINATE,
TBPF_NORMAL, TBPF_ERROR, TBPF_PAUSED};
TaskbarWindowPreview::TaskbarWindowPreview(
ITaskbarList4* aTaskbar, nsITaskbarPreviewController* aController,
HWND aHWND, nsIDocShell* aShell)
: TaskbarPreview(aTaskbar, aController, aHWND, aShell),
mCustomDrawing(false),
mHaveButtons(false),
mState(TBPF_NOPROGRESS),
mCurrentValue(0),
mMaxValue(0),
mOverlayIcon(nullptr) {
// Window previews are visible by default
(void)SetVisible(true);
memset(mThumbButtons, 0, sizeof mThumbButtons);
for (int32_t i = 0; i < nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS; i++) {
mThumbButtons[i].dwMask = THB_FLAGS | THB_ICON | THB_TOOLTIP;
mThumbButtons[i].iId = i;
mThumbButtons[i].dwFlags = THBF_HIDDEN;
}
}
TaskbarWindowPreview::~TaskbarWindowPreview() {
if (mOverlayIcon) {
::DestroyIcon(mOverlayIcon);
mOverlayIcon = nullptr;
}
// We need to clean up a hook associated with the "this" pointer.
SetVisible(false);
if (IsWindowAvailable()) {
DetachFromNSWindow();
} else {
mWnd = nullptr;
}
}
nsresult TaskbarWindowPreview::Init() {
nsresult rv = TaskbarPreview::Init();
if (NS_FAILED(rv)) {
return rv;
}
if (CanMakeTaskbarCalls()) {
return NS_OK;
}
WindowHook* hook = GetWindowHook();
if (!hook) {
return NS_ERROR_NOT_AVAILABLE;
}
return hook->AddMonitor(nsAppShell::GetTaskbarButtonCreatedMessage(),
TaskbarWindowHook, this);
}
nsresult TaskbarWindowPreview::ShowActive(bool active) {
return FAILED(mTaskbar->ActivateTab(active ? mWnd : nullptr))
? NS_ERROR_FAILURE
: NS_OK;
}
HWND& TaskbarWindowPreview::PreviewWindow() { return mWnd; }
nsresult TaskbarWindowPreview::GetButton(uint32_t index,
nsITaskbarPreviewButton** _retVal) {
if (index >= nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsITaskbarPreviewButton> button(
do_QueryReferent(mWeakButtons[index]));
if (!button) {
// Lost reference
button = new TaskbarPreviewButton(this, index);
if (!button) {
return NS_ERROR_OUT_OF_MEMORY;
}
mWeakButtons[index] = do_GetWeakReference(button);
}
if (!mHaveButtons) {
mHaveButtons = true;
WindowHook* hook = GetWindowHook();
if (!hook) {
return NS_ERROR_NOT_AVAILABLE;
}
(void)hook->AddHook(WM_COMMAND, WindowHookProc, this);
if (mVisible && FAILED(mTaskbar->ThumbBarAddButtons(
mWnd, nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS,
mThumbButtons))) {
return NS_ERROR_FAILURE;
}
}
button.forget(_retVal);
return NS_OK;
}
NS_IMETHODIMP
TaskbarWindowPreview::SetEnableCustomDrawing(bool aEnable) {
if (aEnable == mCustomDrawing) return NS_OK;
WindowHook* hook = GetWindowHook();
if (!hook) {
return NS_ERROR_NOT_AVAILABLE;
}
mCustomDrawing = aEnable;
TaskbarPreview::EnableCustomDrawing(mWnd, aEnable);
if (aEnable) {
(void)hook->AddHook(WM_DWMSENDICONICTHUMBNAIL, WindowHookProc, this);
(void)hook->AddHook(WM_DWMSENDICONICLIVEPREVIEWBITMAP, WindowHookProc,
this);
} else {
(void)hook->RemoveHook(WM_DWMSENDICONICLIVEPREVIEWBITMAP, WindowHookProc,
this);
(void)hook->RemoveHook(WM_DWMSENDICONICTHUMBNAIL, WindowHookProc, this);
}
return NS_OK;
}
NS_IMETHODIMP
TaskbarWindowPreview::GetEnableCustomDrawing(bool* aEnable) {
*aEnable = mCustomDrawing;
return NS_OK;
}
NS_IMETHODIMP
TaskbarWindowPreview::SetProgressState(nsTaskbarProgressState aState,
uint64_t aCurrentValue,
uint64_t aMaxValue) {
NS_ENSURE_ARG_RANGE(aState, nsTaskbarProgressState(0),
nsTaskbarProgressState(ArrayLength(sNativeStates) - 1));
TBPFLAG nativeState = sNativeStates[aState];
if (nativeState == TBPF_NOPROGRESS || nativeState == TBPF_INDETERMINATE) {
NS_ENSURE_TRUE(aCurrentValue == 0, NS_ERROR_INVALID_ARG);
NS_ENSURE_TRUE(aMaxValue == 0, NS_ERROR_INVALID_ARG);
}
if (aCurrentValue > aMaxValue) return NS_ERROR_ILLEGAL_VALUE;
mState = nativeState;
mCurrentValue = aCurrentValue;
mMaxValue = aMaxValue;
// Only update if we can
return CanMakeTaskbarCalls() ? UpdateTaskbarProgress() : NS_OK;
}
NS_IMETHODIMP
TaskbarWindowPreview::SetOverlayIcon(imgIContainer* aStatusIcon,
const nsAString& aStatusDescription) {
nsresult rv;
if (aStatusIcon) {
// The image shouldn't be animated
bool isAnimated;
rv = aStatusIcon->GetAnimated(&isAnimated);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_FALSE(isAnimated, NS_ERROR_INVALID_ARG);
}
HICON hIcon = nullptr;
if (aStatusIcon) {
rv = nsWindowGfx::CreateIcon(
aStatusIcon, false, LayoutDeviceIntPoint(),
nsWindowGfx::GetIconMetrics(nsWindowGfx::kSmallIcon), &hIcon);
NS_ENSURE_SUCCESS(rv, rv);
}
if (mOverlayIcon) ::DestroyIcon(mOverlayIcon);
mOverlayIcon = hIcon;
mIconDescription = aStatusDescription;
// Only update if we can
return CanMakeTaskbarCalls() ? UpdateOverlayIcon() : NS_OK;
}
nsresult TaskbarWindowPreview::UpdateTaskbarProperties() {
if (mHaveButtons) {
if (FAILED(mTaskbar->ThumbBarAddButtons(
mWnd, nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS, mThumbButtons)))
return NS_ERROR_FAILURE;
}
nsresult rv = UpdateTaskbarProgress();
NS_ENSURE_SUCCESS(rv, rv);
rv = UpdateOverlayIcon();
NS_ENSURE_SUCCESS(rv, rv);
return TaskbarPreview::UpdateTaskbarProperties();
}
nsresult TaskbarWindowPreview::UpdateTaskbarProgress() {
HRESULT hr = mTaskbar->SetProgressState(mWnd, mState);
if (SUCCEEDED(hr) && mState != TBPF_NOPROGRESS &&
mState != TBPF_INDETERMINATE)
hr = mTaskbar->SetProgressValue(mWnd, mCurrentValue, mMaxValue);
return SUCCEEDED(hr) ? NS_OK : NS_ERROR_FAILURE;
}
nsresult TaskbarWindowPreview::UpdateOverlayIcon() {
HRESULT hr =
mTaskbar->SetOverlayIcon(mWnd, mOverlayIcon, mIconDescription.get());
return SUCCEEDED(hr) ? NS_OK : NS_ERROR_FAILURE;
}
LRESULT
TaskbarWindowPreview::WndProc(UINT nMsg, WPARAM wParam, LPARAM lParam) {
RefPtr<TaskbarWindowPreview> kungFuDeathGrip(this);
switch (nMsg) {
case WM_COMMAND: {
uint32_t id = LOWORD(wParam);
uint32_t index = id;
nsCOMPtr<nsITaskbarPreviewButton> button;
nsresult rv = GetButton(index, getter_AddRefs(button));
if (NS_SUCCEEDED(rv)) mController->OnClick(button);
}
return 0;
}
return TaskbarPreview::WndProc(nMsg, wParam, lParam);
}
/* static */
bool TaskbarWindowPreview::TaskbarWindowHook(void* aContext, HWND hWnd,
UINT nMsg, WPARAM wParam,
LPARAM lParam, LRESULT* aResult) {
NS_ASSERTION(nMsg == nsAppShell::GetTaskbarButtonCreatedMessage(),
"Window hook proc called with wrong message");
TaskbarWindowPreview* preview =
reinterpret_cast<TaskbarWindowPreview*>(aContext);
// Now we can make all the calls to mTaskbar
preview->UpdateTaskbarProperties();
return false;
}
nsresult TaskbarWindowPreview::Enable() {
nsresult rv = TaskbarPreview::Enable();
NS_ENSURE_SUCCESS(rv, rv);
return FAILED(mTaskbar->AddTab(mWnd)) ? NS_ERROR_FAILURE : NS_OK;
}
nsresult TaskbarWindowPreview::Disable() {
nsresult rv = TaskbarPreview::Disable();
NS_ENSURE_SUCCESS(rv, rv);
return FAILED(mTaskbar->DeleteTab(mWnd)) ? NS_ERROR_FAILURE : NS_OK;
}
void TaskbarWindowPreview::DetachFromNSWindow() {
// Remove the hooks we have for drawing
SetEnableCustomDrawing(false);
if (WindowHook* hook = GetWindowHook()) {
(void)hook->RemoveHook(WM_COMMAND, WindowHookProc, this);
(void)hook->RemoveMonitor(nsAppShell::GetTaskbarButtonCreatedMessage(),
TaskbarWindowHook, this);
}
TaskbarPreview::DetachFromNSWindow();
}
nsresult TaskbarWindowPreview::UpdateButtons() {
NS_ASSERTION(mVisible, "UpdateButtons called on invisible preview");
if (FAILED(mTaskbar->ThumbBarUpdateButtons(
mWnd, nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS, mThumbButtons)))
return NS_ERROR_FAILURE;
return NS_OK;
}
nsresult TaskbarWindowPreview::UpdateButton(uint32_t index) {
if (index >= nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS)
return NS_ERROR_INVALID_ARG;
if (mVisible) {
if (FAILED(mTaskbar->ThumbBarUpdateButtons(mWnd, 1, &mThumbButtons[index])))
return NS_ERROR_FAILURE;
}
return NS_OK;
}
} // namespace widget
} // namespace mozilla