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-rw-r--r--widget/windows/TaskbarWindowPreview.cpp326
1 files changed, 326 insertions, 0 deletions
diff --git a/widget/windows/TaskbarWindowPreview.cpp b/widget/windows/TaskbarWindowPreview.cpp
new file mode 100644
index 0000000000..212278be4a
--- /dev/null
+++ b/widget/windows/TaskbarWindowPreview.cpp
@@ -0,0 +1,326 @@
+/* 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;
+}
+} // 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