src/chrome/browser/ui/views/website_settings/permission_selector_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/ui/views/website_settings/permission_selector_view.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "chrome/browser/ui/website_settings/permission_menu_model.h"
   9 #include "chrome/browser/ui/website_settings/website_settings_ui.h"
  10 #include "chrome/grit/generated_resources.h"
  11 #include "ui/accessibility/ax_view_state.h"
  12 #include "ui/base/l10n/l10n_util.h"
  13 #include "ui/gfx/image/image.h"
  14 #include "ui/views/controls/button/menu_button.h"
  15 #include "ui/views/controls/image_view.h"
  16 #include "ui/views/controls/label.h"
  17 #include "ui/views/controls/menu/menu_runner.h"
  18 #include "ui/views/layout/grid_layout.h"
  19 #include "ui/views/view.h"
  20 #include "ui/views/widget/widget.h"
  21
  22 namespace {
  23
  24 // Left icon margin.
  25 const int kPermissionIconMarginLeft = 6;
  26 // The width of the column that contains the permissions icons.
  27 const int kPermissionIconColumnWidth = 20;
  28
  29 }  // namespace
  30
  31 namespace internal {
  32
  33 // The |PermissionMenuButton| provides a menu for selecting a setting a
  34 // permissions type.
  35 class PermissionMenuButton : public views::MenuButton,
  36                              public views::MenuButtonListener {
  37  public:
  38   // Creates a new |PermissionMenuButton| with the passed |text|. The ownership
  39   // of the |model| remains with the caller and is not transfered to the
  40   // |PermissionMenuButton|. If the |show_menu_marker| flag is true, then a
  41   // small icon is be displayed next to the button |text|, indicating that the
  42   // button opens a drop down menu.
  43   PermissionMenuButton(const base::string16& text,
  44                        PermissionMenuModel* model,
  45                        bool show_menu_marker);
  46   virtual ~PermissionMenuButton();
  47
  48   // Overridden from views::LabelButton.
  49   virtual void SetText(const base::string16& text) OVERRIDE;
  50
  51   // Overridden from views::View.
  52   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
  53   virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE;
  54
  55  private:
  56   // Overridden from views::MenuButtonListener.
  57   virtual void OnMenuButtonClicked(View* source,
  58                                    const gfx::Point& point) OVERRIDE;
  59
  60   PermissionMenuModel* menu_model_;  // Owned by |PermissionSelectorView|.
  61   scoped_ptr<views::MenuRunner> menu_runner_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(PermissionMenuButton);
  64 };
  65
  66 ///////////////////////////////////////////////////////////////////////////////
  67 // PermissionMenuButton
  68 ///////////////////////////////////////////////////////////////////////////////
  69
  70 PermissionMenuButton::PermissionMenuButton(const base::string16& text,
  71                                            PermissionMenuModel* model,
  72                                            bool show_menu_marker)
  73     : MenuButton(NULL, text, this, show_menu_marker),
  74       menu_model_(model) {
  75 }
  76
  77 PermissionMenuButton::~PermissionMenuButton() {
  78 }
  79
  80 void PermissionMenuButton::SetText(const base::string16& text) {
  81   MenuButton::SetText(text);
  82   SizeToPreferredSize();
  83 }
  84
  85 void PermissionMenuButton::GetAccessibleState(ui::AXViewState* state) {
  86   MenuButton::GetAccessibleState(state);
  87   state->value = GetText();
  88 }
  89
  90 void PermissionMenuButton::OnNativeThemeChanged(const ui::NativeTheme* theme) {
  91   SetTextColor(views::Button::STATE_NORMAL, GetNativeTheme()->GetSystemColor(
  92       ui::NativeTheme::kColorId_LabelEnabledColor));
  93   SetTextColor(views::Button::STATE_HOVERED, GetNativeTheme()->GetSystemColor(
  94       ui::NativeTheme::kColorId_LabelEnabledColor));
  95   SetTextColor(views::Button::STATE_DISABLED, GetNativeTheme()->GetSystemColor(
  96       ui::NativeTheme::kColorId_LabelDisabledColor));
  97 }
  98
  99 void PermissionMenuButton::OnMenuButtonClicked(View* source,
 100                                                const gfx::Point& point) {
 101   menu_runner_.reset(
 102       new views::MenuRunner(menu_model_, views::MenuRunner::HAS_MNEMONICS));
 103
 104   gfx::Point p(point);
 105   p.Offset(-source->width(), 0);
 106   if (menu_runner_->RunMenuAt(source->GetWidget()->GetTopLevelWidget(),
 107                               this,
 108                               gfx::Rect(p, gfx::Size()),
 109                               views::MENU_ANCHOR_TOPLEFT,
 110                               ui::MENU_SOURCE_NONE) ==
 111       views::MenuRunner::MENU_DELETED) {
 112     return;
 113   }
 114 }
 115
 116 }  // namespace internal
 117
 118 ///////////////////////////////////////////////////////////////////////////////
 119 // PermissionSelectorView
 120 ///////////////////////////////////////////////////////////////////////////////
 121
 122 PermissionSelectorView::PermissionSelectorView(
 123     const GURL& url,
 124     const WebsiteSettingsUI::PermissionInfo& permission)
 125     : icon_(NULL), menu_button_(NULL) {
 126   views::GridLayout* layout = new views::GridLayout(this);
 127   SetLayoutManager(layout);
 128   const int column_set_id = 0;
 129   views::ColumnSet* column_set = layout->AddColumnSet(column_set_id);
 130   column_set->AddColumn(views::GridLayout::FILL,
 131                         views::GridLayout::FILL,
 132                         1,
 133                         views::GridLayout::FIXED,
 134                         kPermissionIconColumnWidth,
 135                         0);
 136   column_set->AddPaddingColumn(0, kPermissionIconMarginLeft);
 137   column_set->AddColumn(views::GridLayout::FILL,
 138                         views::GridLayout::FILL,
 139                         1,
 140                         views::GridLayout::USE_PREF,
 141                         0,
 142                         0);
 143   column_set->AddColumn(views::GridLayout::FILL,
 144                         views::GridLayout::FILL,
 145                         1,
 146                         views::GridLayout::USE_PREF,
 147                         0,
 148                         0);
 149
 150   layout->StartRow(1, column_set_id);
 151   // Create the permission icon.
 152   icon_ = new views::ImageView();
 153   const gfx::Image& image = WebsiteSettingsUI::GetPermissionIcon(permission);
 154   icon_->SetImage(image.ToImageSkia());
 155   layout->AddView(icon_,
 156                   1,
 157                   1,
 158                   views::GridLayout::CENTER,
 159                   views::GridLayout::CENTER);
 160   // Create the label that displays the permission type.
 161   views::Label* label = new views::Label(l10n_util::GetStringFUTF16(
 162       IDS_WEBSITE_SETTINGS_PERMISSION_TYPE,
 163       WebsiteSettingsUI::PermissionTypeToUIString(permission.type)));
 164   layout->AddView(label,
 165                   1,
 166                   1,
 167                   views::GridLayout::LEADING,
 168                   views::GridLayout::CENTER);
 169   // Create the menu model.
 170   menu_model_.reset(new PermissionMenuModel(
 171       url,
 172       permission,
 173       base::Bind(&PermissionSelectorView::PermissionChanged,
 174                  base::Unretained(this))));
 175   // Create the permission menu button.
 176   bool button_enabled =
 177       permission.source == content_settings::SETTING_SOURCE_USER;
 178   menu_button_ = new internal::PermissionMenuButton(
 179       WebsiteSettingsUI::PermissionActionToUIString(
 180           permission.setting, permission.default_setting, permission.source),
 181       menu_model_.get(),
 182       button_enabled);
 183   menu_button_->SetEnabled(button_enabled);
 184   menu_button_->SetFocusable(button_enabled);
 185   menu_button_->SetAccessibleName(
 186       WebsiteSettingsUI::PermissionTypeToUIString(permission.type));
 187   layout->AddView(menu_button_);
 188 }
 189
 190 void PermissionSelectorView::AddObserver(
 191     PermissionSelectorViewObserver* observer) {
 192   observer_list_.AddObserver(observer);
 193 }
 194
 195 void PermissionSelectorView::ChildPreferredSizeChanged(View* child) {
 196   SizeToPreferredSize();
 197   // FIXME: The parent is only a plain |View| that is used as a
 198   // container/box/panel. The SizeToPreferredSize method of the parent is
 199   // called here directly in order not to implement a custom |View| class with
 200   // its own implementation of the ChildPreferredSizeChanged method.
 201   parent()->SizeToPreferredSize();
 202 }
 203
 204 PermissionSelectorView::~PermissionSelectorView() {
 205 }
 206
 207 void PermissionSelectorView::PermissionChanged(
 208     const WebsiteSettingsUI::PermissionInfo& permission) {
 209   // Change the permission icon to reflect the selected setting.
 210   const gfx::Image& image = WebsiteSettingsUI::GetPermissionIcon(permission);
 211   icon_->SetImage(image.ToImageSkia());
 212
 213   // Update the menu button text to reflect the new setting.
 214   menu_button_->SetText(WebsiteSettingsUI::PermissionActionToUIString(
 215       permission.setting,
 216       permission.default_setting,
 217       content_settings::SETTING_SOURCE_USER));
 218
 219   FOR_EACH_OBSERVER(PermissionSelectorViewObserver,
 220                     observer_list_,
 221                     OnPermissionChanged(permission));
 222 }