Add m-esr52 at 52.6.0

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..c3d005252d
--- /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;
+}
+}
+
+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
+