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tenfourfox/widget/windows/TaskbarWindowPreview.cpp

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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 "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;
}
}
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;
}
WindowHook &hook = GetWindowHook();
if (!CanMakeTaskbarCalls())
hook.AddMonitor(nsAppShell::GetTaskbarButtonCreatedMessage(),
TaskbarWindowHook, this);
}
TaskbarWindowPreview::~TaskbarWindowPreview() {
if (mOverlayIcon) {
::DestroyIcon(mOverlayIcon);
mOverlayIcon = nullptr;
}
if (IsWindowAvailable()) {
DetachFromNSWindow();
} else {
mWnd = nullptr;
}
}
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();
(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;
mCustomDrawing = aEnable;
TaskbarPreview::EnableCustomDrawing(mWnd, aEnable);
WindowHook &hook = GetWindowHook();
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, 0, 0,
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);
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
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