widget/windows/TaskbarPreviewButton.cpp

   1 /* vim: se cin sw=2 ts=2 et : */
   2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #include <windows.h>
   9 #include <strsafe.h>
  10
  11 #include "TaskbarWindowPreview.h"
  12 #include "TaskbarPreviewButton.h"
  13 #include "nsWindowGfx.h"
  14 #include <imgIContainer.h>
  15
  16 namespace mozilla {
  17 namespace widget {
  18
  19 NS_IMPL_ISUPPORTS(TaskbarPreviewButton, nsITaskbarPreviewButton,
  20                   nsISupportsWeakReference)
  21
  22 TaskbarPreviewButton::TaskbarPreviewButton(TaskbarWindowPreview* preview,
  23                                            uint32_t index)
  24     : mPreview(preview), mIndex(index) {}
  25
  26 TaskbarPreviewButton::~TaskbarPreviewButton() { SetVisible(false); }
  27
  28 NS_IMETHODIMP
  29 TaskbarPreviewButton::GetTooltip(nsAString& aTooltip) {
  30   aTooltip = mTooltip;
  31   return NS_OK;
  32 }
  33
  34 NS_IMETHODIMP
  35 TaskbarPreviewButton::SetTooltip(const nsAString& aTooltip) {
  36   mTooltip = aTooltip;
  37   size_t destLength = sizeof Button().szTip / (sizeof Button().szTip[0]);
  38   wchar_t* tooltip = &(Button().szTip[0]);
  39   StringCchCopyNW(tooltip, destLength, mTooltip.get(), mTooltip.Length());
  40   return Update();
  41 }
  42
  43 NS_IMETHODIMP
  44 TaskbarPreviewButton::GetDismissOnClick(bool* dismiss) {
  45   *dismiss = (Button().dwFlags & THBF_DISMISSONCLICK) == THBF_DISMISSONCLICK;
  46   return NS_OK;
  47 }
  48
  49 NS_IMETHODIMP
  50 TaskbarPreviewButton::SetDismissOnClick(bool dismiss) {
  51   if (dismiss)
  52     Button().dwFlags |= THBF_DISMISSONCLICK;
  53   else
  54     Button().dwFlags &= ~THBF_DISMISSONCLICK;
  55   return Update();
  56 }
  57
  58 NS_IMETHODIMP
  59 TaskbarPreviewButton::GetHasBorder(bool* hasBorder) {
  60   *hasBorder = (Button().dwFlags & THBF_NOBACKGROUND) != THBF_NOBACKGROUND;
  61   return NS_OK;
  62 }
  63
  64 NS_IMETHODIMP
  65 TaskbarPreviewButton::SetHasBorder(bool hasBorder) {
  66   if (hasBorder)
  67     Button().dwFlags &= ~THBF_NOBACKGROUND;
  68   else
  69     Button().dwFlags |= THBF_NOBACKGROUND;
  70   return Update();
  71 }
  72
  73 NS_IMETHODIMP
  74 TaskbarPreviewButton::GetDisabled(bool* disabled) {
  75   *disabled = (Button().dwFlags & THBF_DISABLED) == THBF_DISABLED;
  76   return NS_OK;
  77 }
  78
  79 NS_IMETHODIMP
  80 TaskbarPreviewButton::SetDisabled(bool disabled) {
  81   if (disabled)
  82     Button().dwFlags |= THBF_DISABLED;
  83   else
  84     Button().dwFlags &= ~THBF_DISABLED;
  85   return Update();
  86 }
  87
  88 NS_IMETHODIMP
  89 TaskbarPreviewButton::GetImage(imgIContainer** img) {
  90   if (mImage)
  91     NS_ADDREF(*img = mImage);
  92   else
  93     *img = nullptr;
  94   return NS_OK;
  95 }
  96
  97 NS_IMETHODIMP
  98 TaskbarPreviewButton::SetImage(imgIContainer* img) {
  99   if (Button().hIcon) ::DestroyIcon(Button().hIcon);
 100   if (img) {
 101     nsresult rv;
 102     rv = nsWindowGfx::CreateIcon(
 103         img, nullptr, false, LayoutDeviceIntPoint(),
 104         nsWindowGfx::GetIconMetrics(nsWindowGfx::kRegularIcon),
 105         &Button().hIcon);
 106     NS_ENSURE_SUCCESS(rv, rv);
 107   } else {
 108     Button().hIcon = nullptr;
 109   }
 110   return Update();
 111 }
 112
 113 NS_IMETHODIMP
 114 TaskbarPreviewButton::GetVisible(bool* visible) {
 115   *visible = (Button().dwFlags & THBF_HIDDEN) != THBF_HIDDEN;
 116   return NS_OK;
 117 }
 118
 119 NS_IMETHODIMP
 120 TaskbarPreviewButton::SetVisible(bool visible) {
 121   if (visible)
 122     Button().dwFlags &= ~THBF_HIDDEN;
 123   else
 124     Button().dwFlags |= THBF_HIDDEN;
 125   return Update();
 126 }
 127
 128 THUMBBUTTON& TaskbarPreviewButton::Button() {
 129   return mPreview->mThumbButtons[mIndex];
 130 }
 131
 132 nsresult TaskbarPreviewButton::Update() {
 133   return mPreview->UpdateButton(mIndex);
 134 }
 135
 136 }  // namespace widget
 137 }  // namespace mozilla