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   ~PermissionMenuButton() override;
  47
  48   // Overridden from views::LabelButton.
  49   void SetText(const base::string16& text) override;
  50
  51   // Overridden from views::View.
  52   void GetAccessibleState(ui::AXViewState* state) override;
  53   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
  54
  55  private:
  56   // Overridden from views::MenuButtonListener.
  57   void OnMenuButtonClicked(View* source, const gfx::Point& point) override;
  58
  59   PermissionMenuModel* menu_model_;  // Owned by |PermissionSelectorView|.
  60   scoped_ptr<views::MenuRunner> menu_runner_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(PermissionMenuButton);
  63 };
  64
  65 ///////////////////////////////////////////////////////////////////////////////
  66 // PermissionMenuButton
  67 ///////////////////////////////////////////////////////////////////////////////
  68
  69 PermissionMenuButton::PermissionMenuButton(const base::string16& text,
  70                                            PermissionMenuModel* model,
  71                                            bool show_menu_marker)
  72     : MenuButton(NULL, text, this, show_menu_marker),
  73       menu_model_(model) {
  74 }
  75
  76 PermissionMenuButton::~PermissionMenuButton() {
  77 }
  78
  79 void PermissionMenuButton::SetText(const base::string16& text) {
  80   MenuButton::SetText(text);
  81   SizeToPreferredSize();
  82 }
  83
  84 void PermissionMenuButton::GetAccessibleState(ui::AXViewState* state) {
  85   MenuButton::GetAccessibleState(state);
  86   state->value = GetText();
  87 }
  88
  89 void PermissionMenuButton::OnNativeThemeChanged(const ui::NativeTheme* theme) {
  90   SetTextColor(views::Button::STATE_NORMAL, GetNativeTheme()->GetSystemColor(
  91       ui::NativeTheme::kColorId_LabelEnabledColor));
  92   SetTextColor(views::Button::STATE_HOVERED, GetNativeTheme()->GetSystemColor(
  93       ui::NativeTheme::kColorId_LabelEnabledColor));
  94   SetTextColor(views::Button::STATE_DISABLED, GetNativeTheme()->GetSystemColor(
  95       ui::NativeTheme::kColorId_LabelDisabledColor));
  96 }
  97
  98 void PermissionMenuButton::OnMenuButtonClicked(View* source,
  99                                                const gfx::Point& point) {
 100   menu_runner_.reset(
 101       new views::MenuRunner(menu_model_, views::MenuRunner::HAS_MNEMONICS));
 102
 103   gfx::Point p(point);
 104   p.Offset(-source->width(), 0);
 105   if (menu_runner_->RunMenuAt(source->GetWidget()->GetTopLevelWidget(),
 106                               this,
 107                               gfx::Rect(p, gfx::Size()),
 108                               views::MENU_ANCHOR_TOPLEFT,
 109                               ui::MENU_SOURCE_NONE) ==
 110       views::MenuRunner::MENU_DELETED) {
 111     return;
 112   }
 113 }
 114
 115 }  // namespace internal
 116
 117 ///////////////////////////////////////////////////////////////////////////////
 118 // PermissionSelectorView
 119 ///////////////////////////////////////////////////////////////////////////////
 120
 121 PermissionSelectorView::PermissionSelectorView(
 122     const GURL& url,
 123     const WebsiteSettingsUI::PermissionInfo& permission)
 124     : icon_(NULL), menu_button_(NULL) {
 125   views::GridLayout* layout = new views::GridLayout(this);
 126   SetLayoutManager(layout);
 127   const int column_set_id = 0;
 128   views::ColumnSet* column_set = layout->AddColumnSet(column_set_id);
 129   column_set->AddColumn(views::GridLayout::FILL,
 130                         views::GridLayout::FILL,
 131                         1,
 132                         views::GridLayout::FIXED,
 133                         kPermissionIconColumnWidth,
 134                         0);
 135   column_set->AddPaddingColumn(0, kPermissionIconMarginLeft);
 136   column_set->AddColumn(views::GridLayout::FILL,
 137                         views::GridLayout::FILL,
 138                         1,
 139                         views::GridLayout::USE_PREF,
 140                         0,
 141                         0);
 142   column_set->AddColumn(views::GridLayout::FILL,
 143                         views::GridLayout::FILL,
 144                         1,
 145                         views::GridLayout::USE_PREF,
 146                         0,
 147                         0);
 148
 149   layout->StartRow(1, column_set_id);
 150   // Create the permission icon.
 151   icon_ = new views::ImageView();
 152   const gfx::Image& image = WebsiteSettingsUI::GetPermissionIcon(permission);
 153   icon_->SetImage(image.ToImageSkia());
 154   layout->AddView(icon_,
 155                   1,
 156                   1,
 157                   views::GridLayout::CENTER,
 158                   views::GridLayout::CENTER);
 159   // Create the label that displays the permission type.
 160   views::Label* label = new views::Label(l10n_util::GetStringFUTF16(
 161       IDS_WEBSITE_SETTINGS_PERMISSION_TYPE,
 162       WebsiteSettingsUI::PermissionTypeToUIString(permission.type)));
 163   layout->AddView(label,
 164                   1,
 165                   1,
 166                   views::GridLayout::LEADING,
 167                   views::GridLayout::CENTER);
 168   // Create the menu model.
 169   menu_model_.reset(new PermissionMenuModel(
 170       url,
 171       permission,
 172       base::Bind(&PermissionSelectorView::PermissionChanged,
 173                  base::Unretained(this))));
 174   // Create the permission menu button.
 175   bool button_enabled =
 176       permission.source == content_settings::SETTING_SOURCE_USER;
 177   menu_button_ = new internal::PermissionMenuButton(
 178       WebsiteSettingsUI::PermissionActionToUIString(
 179           permission.setting, permission.default_setting, permission.source),
 180       menu_model_.get(),
 181       button_enabled);
 182   menu_button_->SetEnabled(button_enabled);
 183   menu_button_->SetFocusable(button_enabled);
 184   menu_button_->SetAccessibleName(
 185       WebsiteSettingsUI::PermissionTypeToUIString(permission.type));
 186   layout->AddView(menu_button_);
 187 }
 188
 189 void PermissionSelectorView::AddObserver(
 190     PermissionSelectorViewObserver* observer) {
 191   observer_list_.AddObserver(observer);
 192 }
 193
 194 void PermissionSelectorView::ChildPreferredSizeChanged(View* child) {
 195   SizeToPreferredSize();
 196   // FIXME: The parent is only a plain |View| that is used as a
 197   // container/box/panel. The SizeToPreferredSize method of the parent is
 198   // called here directly in order not to implement a custom |View| class with
 199   // its own implementation of the ChildPreferredSizeChanged method.
 200   parent()->SizeToPreferredSize();
 201 }
 202
 203 PermissionSelectorView::~PermissionSelectorView() {
 204 }
 205
 206 void PermissionSelectorView::PermissionChanged(
 207     const WebsiteSettingsUI::PermissionInfo& permission) {
 208   // Change the permission icon to reflect the selected setting.
 209   const gfx::Image& image = WebsiteSettingsUI::GetPermissionIcon(permission);
 210   icon_->SetImage(image.ToImageSkia());
 211
 212   // Update the menu button text to reflect the new setting.
 213   menu_button_->SetText(WebsiteSettingsUI::PermissionActionToUIString(
 214       permission.setting,
 215       permission.default_setting,
 216       content_settings::SETTING_SOURCE_USER));
 217
 218   FOR_EACH_OBSERVER(PermissionSelectorViewObserver,
 219                     observer_list_,
 220                     OnPermissionChanged(permission));
 221 }