chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/extensions/extension_uninstall_dialog.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/compiler_specific.h"
   9 #include "base/strings/string_util.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/browser/ui/app_list/app_list_service.h"
  12 #include "chrome/browser/ui/browser.h"
  13 #include "chrome/browser/ui/browser_window.h"
  14 #include "chrome/browser/ui/views/constrained_window_views.h"
  15 #include "extensions/common/extension.h"
  16 #include "grit/generated_resources.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18 #include "ui/compositor/compositor.h"
  19 #include "ui/compositor/layer.h"
  20 #include "ui/views/controls/image_view.h"
  21 #include "ui/views/controls/label.h"
  22 #include "ui/views/layout/layout_constants.h"
  23 #include "ui/views/view.h"
  24 #include "ui/views/widget/widget.h"
  25 #include "ui/views/window/dialog_delegate.h"
  26
  27 #if defined(USE_ASH)
  28 #include "ash/shell.h"
  29 #endif
  30
  31 namespace {
  32
  33 const int kRightColumnWidth = 210;
  34 const int kIconSize = 69;
  35
  36 class ExtensionUninstallDialogDelegateView;
  37
  38 // Returns parent window for extension uninstall dialog.
  39 gfx::NativeWindow GetParent(Browser* browser) {
  40   if (browser && browser->window())
  41     return browser->window()->GetNativeWindow();
  42   return NULL;
  43 }
  44
  45 // Views implementation of the uninstall dialog.
  46 class ExtensionUninstallDialogViews : public ExtensionUninstallDialog {
  47  public:
  48   ExtensionUninstallDialogViews(Profile* profile,
  49                                 Browser* browser,
  50                                 ExtensionUninstallDialog::Delegate* delegate);
  51   virtual ~ExtensionUninstallDialogViews();
  52
  53   // Forwards the accept and cancels to the delegate.
  54   void ExtensionUninstallAccepted();
  55   void ExtensionUninstallCanceled();
  56
  57   ExtensionUninstallDialogDelegateView* view() { return view_; }
  58
  59  private:
  60   virtual void Show() OVERRIDE;
  61
  62   ExtensionUninstallDialogDelegateView* view_;
  63   bool show_in_app_list_;
  64
  65   DISALLOW_COPY_AND_ASSIGN(ExtensionUninstallDialogViews);
  66 };
  67
  68 // The dialog's view, owned by the views framework.
  69 class ExtensionUninstallDialogDelegateView : public views::DialogDelegateView {
  70  public:
  71   ExtensionUninstallDialogDelegateView(
  72       ExtensionUninstallDialogViews* dialog_view,
  73       const extensions::Extension* extension,
  74       gfx::ImageSkia* icon);
  75   virtual ~ExtensionUninstallDialogDelegateView();
  76
  77   // Called when the ExtensionUninstallDialog has been destroyed to make sure
  78   // we invalidate pointers.
  79   void DialogDestroyed() { dialog_ = NULL; }
  80
  81  private:
  82   // views::DialogDelegate:
  83   virtual base::string16 GetDialogButtonLabel(
  84       ui::DialogButton button) const OVERRIDE;
  85   virtual int GetDefaultDialogButton() const OVERRIDE {
  86     return ui::DIALOG_BUTTON_CANCEL;
  87   }
  88   virtual bool Accept() OVERRIDE;
  89   virtual bool Cancel() OVERRIDE;
  90
  91   // views::WidgetDelegate:
  92   virtual ui::ModalType GetModalType() const OVERRIDE {
  93     return ui::MODAL_TYPE_WINDOW;
  94   }
  95   virtual base::string16 GetWindowTitle() const OVERRIDE;
  96
  97   // views::View:
  98   virtual gfx::Size GetPreferredSize() OVERRIDE;
  99
 100   virtual void Layout() OVERRIDE;
 101
 102   ExtensionUninstallDialogViews* dialog_;
 103
 104   views::ImageView* icon_;
 105   views::Label* heading_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(ExtensionUninstallDialogDelegateView);
 108 };
 109
 110 ExtensionUninstallDialogViews::ExtensionUninstallDialogViews(
 111     Profile* profile,
 112     Browser* browser,
 113     ExtensionUninstallDialog::Delegate* delegate)
 114     : ExtensionUninstallDialog(profile, browser, delegate),
 115       view_(NULL),
 116       show_in_app_list_(!browser) {
 117 }
 118
 119 ExtensionUninstallDialogViews::~ExtensionUninstallDialogViews() {
 120   // Close the widget (the views framework will delete view_).
 121   if (view_) {
 122     view_->DialogDestroyed();
 123     view_->GetWidget()->CloseNow();
 124   }
 125 }
 126
 127 void ExtensionUninstallDialogViews::Show() {
 128   // TODO(tapted): A true |desktop_type| needs to be passed in at creation time
 129   // to remove reliance on GetActiveDesktop(). http://crbug.com/308360
 130   gfx::NativeWindow parent = show_in_app_list_ ?
 131       AppListService::Get(chrome::GetActiveDesktop())->GetAppListWindow() :
 132       GetParent(browser_);
 133   if (browser_ && !parent) {
 134     delegate_->ExtensionUninstallCanceled();
 135     return;
 136   }
 137
 138   view_ = new ExtensionUninstallDialogDelegateView(this, extension_, &icon_);
 139   CreateBrowserModalDialogViews(view_, parent)->Show();
 140 }
 141
 142 void ExtensionUninstallDialogViews::ExtensionUninstallAccepted() {
 143   // The widget gets destroyed when the dialog is accepted.
 144   view_ = NULL;
 145   delegate_->ExtensionUninstallAccepted();
 146 }
 147
 148 void ExtensionUninstallDialogViews::ExtensionUninstallCanceled() {
 149   // The widget gets destroyed when the dialog is canceled.
 150   view_ = NULL;
 151   delegate_->ExtensionUninstallCanceled();
 152 }
 153
 154 ExtensionUninstallDialogDelegateView::ExtensionUninstallDialogDelegateView(
 155     ExtensionUninstallDialogViews* dialog_view,
 156     const extensions::Extension* extension,
 157     gfx::ImageSkia* icon)
 158     : dialog_(dialog_view) {
 159   // Scale down to icon size, but allow smaller icons (don't scale up).
 160   gfx::Size size(icon->width(), icon->height());
 161   if (size.width() > kIconSize || size.height() > kIconSize)
 162     size = gfx::Size(kIconSize, kIconSize);
 163   icon_ = new views::ImageView();
 164   icon_->SetImageSize(size);
 165   icon_->SetImage(*icon);
 166   AddChildView(icon_);
 167
 168   heading_ = new views::Label(
 169       l10n_util::GetStringFUTF16(IDS_EXTENSION_UNINSTALL_PROMPT_HEADING,
 170                                  base::UTF8ToUTF16(extension->name())));
 171   heading_->SetMultiLine(true);
 172   AddChildView(heading_);
 173 }
 174
 175 ExtensionUninstallDialogDelegateView::~ExtensionUninstallDialogDelegateView() {
 176 }
 177
 178 base::string16 ExtensionUninstallDialogDelegateView::GetDialogButtonLabel(
 179     ui::DialogButton button) const {
 180   return l10n_util::GetStringUTF16((button == ui::DIALOG_BUTTON_OK) ?
 181       IDS_EXTENSION_PROMPT_UNINSTALL_BUTTON : IDS_CANCEL);
 182 }
 183
 184 bool ExtensionUninstallDialogDelegateView::Accept() {
 185   if (dialog_)
 186     dialog_->ExtensionUninstallAccepted();
 187   return true;
 188 }
 189
 190 bool ExtensionUninstallDialogDelegateView::Cancel() {
 191   if (dialog_)
 192     dialog_->ExtensionUninstallCanceled();
 193   return true;
 194 }
 195
 196 base::string16 ExtensionUninstallDialogDelegateView::GetWindowTitle() const {
 197   return l10n_util::GetStringUTF16(IDS_EXTENSION_UNINSTALL_PROMPT_TITLE);
 198 }
 199
 200 gfx::Size ExtensionUninstallDialogDelegateView::GetPreferredSize() {
 201   int width = kRightColumnWidth;
 202   width += kIconSize;
 203   width += views::kButtonHEdgeMarginNew * 2;
 204   width += views::kRelatedControlHorizontalSpacing;
 205
 206   int height = views::kPanelVertMargin * 2;
 207   height += heading_->GetHeightForWidth(kRightColumnWidth);
 208
 209   return gfx::Size(width,
 210                    std::max(height, kIconSize + views::kPanelVertMargin * 2));
 211 }
 212
 213 void ExtensionUninstallDialogDelegateView::Layout() {
 214   int x = views::kButtonHEdgeMarginNew;
 215   int y = views::kPanelVertMargin;
 216
 217   heading_->SizeToFit(kRightColumnWidth);
 218
 219   if (heading_->height() <= kIconSize) {
 220     icon_->SetBounds(x, y, kIconSize, kIconSize);
 221     x += kIconSize;
 222     x += views::kRelatedControlHorizontalSpacing;
 223
 224     heading_->SetX(x);
 225     heading_->SetY(y + (kIconSize - heading_->height()) / 2);
 226   } else {
 227     icon_->SetBounds(x,
 228                      y + (heading_->height() - kIconSize) / 2,
 229                      kIconSize,
 230                      kIconSize);
 231     x += kIconSize;
 232     x += views::kRelatedControlHorizontalSpacing;
 233
 234     heading_->SetX(x);
 235     heading_->SetY(y);
 236   }
 237 }
 238
 239 }  // namespace
 240
 241 // static
 242 ExtensionUninstallDialog* ExtensionUninstallDialog::Create(
 243     Profile* profile,
 244     Browser* browser,
 245     Delegate* delegate) {
 246   return new ExtensionUninstallDialogViews(profile, browser, delegate);
 247 }