Add infrastructure for Chrome Actions

chrome/browser/ui/views/toolbar/browser_action_view.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/toolbar/browser_action_view.h"
 
 #include <string>
 
-#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/toolbar/toolbar_action_view_controller.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/toolbar/browser_actions_container.h"
 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
 #include "chrome/grit/generated_resources.h"
-#include "extensions/common/extension.h"
-#include "extensions/common/manifest_constants.h"
 #include "grit/theme_resources.h"
 #include "ui/accessibility/ax_view_state.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
 #include "ui/events/event.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_operations.h"
 #include "ui/gfx/image/image_skia_source.h"
 #include "ui/views/controls/button/label_button_border.h"
 
-using extensions::Extension;
 using views::LabelButtonBorder;
 
 namespace {
 
 // We have smaller insets than normal STYLE_TEXTBUTTON buttons so that we can
 // fit user supplied icons in without clipping them.
 const int kBorderInset = 4;
 
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // BrowserActionView
 
-BrowserActionView::BrowserActionView(const Extension* extension,
-                                     ExtensionAction* extension_action,
-                                     Browser* browser,
-                                     BrowserActionView::Delegate* delegate)
+BrowserActionView::BrowserActionView(
+    scoped_ptr<ToolbarActionViewController> view_controller,
+    Browser* browser,
+    BrowserActionView::Delegate* delegate)
     : MenuButton(this, base::string16(), NULL, false),
-      view_controller_(new ExtensionActionViewController(
-          extension,
-          browser,
-          extension_action,
-          this)),
+      view_controller_(view_controller.Pass()),
+      browser_(browser),
       delegate_(delegate),
-      called_registered_extension_command_(false),
-      icon_observer_(NULL) {
+      called_register_command_(false) {
   set_id(VIEW_ID_BROWSER_ACTION);
+  view_controller_->SetDelegate(this);
   SetHorizontalAlignment(gfx::ALIGN_CENTER);
-  set_context_menu_controller(view_controller_.get());
-  set_drag_controller(delegate_);
-
-  content::NotificationSource notification_source =
-      content::Source<Profile>(browser->profile()->GetOriginalProfile());
-  registrar_.Add(this,
-                 extensions::NOTIFICATION_EXTENSION_COMMAND_ADDED,
-                 notification_source);
-  registrar_.Add(this,
-                 extensions::NOTIFICATION_EXTENSION_COMMAND_REMOVED,
-                 notification_source);
+  if (view_controller_->CanDrag())
+    set_drag_controller(delegate_);
 
   // We also listen for browser theme changes on linux because a switch from or
   // to GTK requires that we regrab our browser action images.
   registrar_.Add(
       this,
       chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
       content::Source<ThemeService>(
           ThemeServiceFactory::GetForProfile(browser->profile())));
 
   UpdateState();
 }
 
 BrowserActionView::~BrowserActionView() {
 }
 
 void BrowserActionView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
-  if (details.is_add && !called_registered_extension_command_ &&
-      GetFocusManager()) {
+  if (details.is_add && !called_register_command_ && GetFocusManager()) {
     view_controller_->RegisterCommand();
-    called_registered_extension_command_ = true;
+    called_register_command_ = true;
   }
 
   MenuButton::ViewHierarchyChanged(details);
 }
 
 void BrowserActionView::OnDragDone() {
   delegate_->OnBrowserActionViewDragDone();
 }
 
 gfx::Size BrowserActionView::GetPreferredSize() const {
   return gfx::Size(BrowserActionsContainer::IconWidth(false),
                    BrowserActionsContainer::IconHeight());
 }
 
 void BrowserActionView::PaintChildren(gfx::Canvas* canvas,
                                       const views::CullSet& cull_set) {
   View::PaintChildren(canvas, cull_set);
-  int tab_id = view_controller_->GetCurrentTabId();
-  if (tab_id >= 0)
-    extension_action()->PaintBadge(canvas, GetLocalBounds(), tab_id);
+  view_controller_->PaintExtra(
+      canvas, GetLocalBounds(), GetCurrentWebContents());
 }
 
 void BrowserActionView::GetAccessibleState(ui::AXViewState* state) {
   views::MenuButton::GetAccessibleState(state);
   state->role = ui::AX_ROLE_BUTTON;
 }
 
 void BrowserActionView::ButtonPressed(views::Button* sender,
                                       const ui::Event& event) {
-  view_controller_->ExecuteActionByUser();
+  view_controller_->ExecuteAction(true);
 }
 
 void BrowserActionView::UpdateState() {
-  int tab_id = view_controller_->GetCurrentTabId();
-  if (tab_id < 0)
+  content::WebContents* web_contents = GetCurrentWebContents();
+  if (SessionTabHelper::IdForTab(web_contents) < 0)
     return;
 
-  if (!IsEnabled(tab_id))
+  bool enabled = view_controller_->IsEnabled(web_contents);
+  if (!enabled)
     SetState(views::CustomButton::STATE_DISABLED);
 
-  gfx::ImageSkia icon = *view_controller_->GetIcon(tab_id).ToImageSkia();
+  gfx::ImageSkia icon = *view_controller_->GetIcon(web_contents).ToImageSkia();
 
   if (!icon.isNull()) {
-    if (!extension_action()->GetIsVisible(tab_id))
+    if (!enabled)
       icon = gfx::ImageSkiaOperations::CreateTransparentImage(icon, .25);
 
-    ThemeService* theme = ThemeServiceFactory::GetForProfile(
-        view_controller_->browser()->profile());
+    ThemeService* theme =
+        ThemeServiceFactory::GetForProfile(browser_->profile());
 
     gfx::ImageSkia bg = *theme->GetImageSkiaNamed(IDR_BROWSER_ACTION);
     SetImage(views::Button::STATE_NORMAL,
              gfx::ImageSkiaOperations::CreateSuperimposedImage(bg, icon));
   }
 
-  // If the browser action name is empty, show the extension name instead.
-  std::string title = extension_action()->GetTitle(tab_id);
-  base::string16 name =
-      base::UTF8ToUTF16(title.empty() ? extension()->name() : title);
-  SetTooltipText(name);
-  SetAccessibleName(name);
+  SetTooltipText(view_controller_->GetTooltip(web_contents));
+  SetAccessibleName(view_controller_->GetAccessibleName(web_contents));
 
   Layout();  // We need to layout since we may have added an icon as a result.
   SchedulePaint();
 }
 
-bool BrowserActionView::IsPopup() {
-  int tab_id = view_controller_->GetCurrentTabId();
-  return (tab_id < 0) ? false : extension_action()->HasPopup(tab_id);
-}
-
 void BrowserActionView::Observe(int type,
                                 const content::NotificationSource& source,
                                 const content::NotificationDetails& details) {
-  switch (type) {
-    case extensions::NOTIFICATION_EXTENSION_COMMAND_ADDED:
-    case extensions::NOTIFICATION_EXTENSION_COMMAND_REMOVED: {
-      std::pair<const std::string, const std::string>* payload =
-          content::Details<std::pair<const std::string, const std::string> >(
-              details).ptr();
-      if (extension()->id() == payload->first &&
-          payload->second ==
-              extensions::manifest_values::kBrowserActionCommandEvent) {
-        if (type == extensions::NOTIFICATION_EXTENSION_COMMAND_ADDED)
-          view_controller_->RegisterCommand();
-        else
-          view_controller_->UnregisterCommand(true);
-      }
-      break;
-    }
-    case chrome::NOTIFICATION_BROWSER_THEME_CHANGED:
-      UpdateState();
-      break;
-    default:
-      NOTREACHED();
-      break;
-  }
+  DCHECK_EQ(chrome::NOTIFICATION_BROWSER_THEME_CHANGED, type);
+  UpdateState();
 }
 
 bool BrowserActionView::Activate() {
-  if (!IsPopup())
+  if (!view_controller_->HasPopup(GetCurrentWebContents()))
     return true;
 
-  view_controller_->ExecuteActionByUser();
+  view_controller_->ExecuteAction(true);
 
   // TODO(erikkay): Run a nested modal loop while the mouse is down to
   // enable menu-like drag-select behavior.
 
   // The return value of this method is returned via OnMousePressed.
   // We need to return false here since we're handing off focus to another
   // widget/view, and true will grab it right back and try to send events
   // to us.
   return false;
 }
 
 bool BrowserActionView::OnMousePressed(const ui::MouseEvent& event) {
   if (!event.IsRightMouseButton()) {
-    return IsPopup() ? MenuButton::OnMousePressed(event) :
-                       LabelButton::OnMousePressed(event);
+    return view_controller_->HasPopup(GetCurrentWebContents()) ?
+        MenuButton::OnMousePressed(event) : LabelButton::OnMousePressed(event);
   }
   return false;
 }
 
 void BrowserActionView::OnMouseReleased(const ui::MouseEvent& event) {
-  if (IsPopup() || view_controller_->is_menu_running()) {
+  if (view_controller_->HasPopup(GetCurrentWebContents()) ||
+      view_controller_->IsMenuRunning()) {
     // TODO(erikkay) this never actually gets called (probably because of the
     // loss of focus).
     MenuButton::OnMouseReleased(event);
   } else {
     LabelButton::OnMouseReleased(event);
   }
 }
 
 void BrowserActionView::OnMouseExited(const ui::MouseEvent& event) {
-  if (IsPopup() || view_controller_->is_menu_running())
+  if (view_controller_->HasPopup(GetCurrentWebContents()) ||
+      view_controller_->IsMenuRunning())
     MenuButton::OnMouseExited(event);
   else
     LabelButton::OnMouseExited(event);
 }
 
 bool BrowserActionView::OnKeyReleased(const ui::KeyEvent& event) {
-  return IsPopup() ? MenuButton::OnKeyReleased(event) :
-                     LabelButton::OnKeyReleased(event);
+  return view_controller_->HasPopup(GetCurrentWebContents()) ?
+      MenuButton::OnKeyReleased(event) : LabelButton::OnKeyReleased(event);
 }
 
 void BrowserActionView::OnGestureEvent(ui::GestureEvent* event) {
-  if (IsPopup())
+  if (view_controller_->HasPopup(GetCurrentWebContents()))
     MenuButton::OnGestureEvent(event);
   else
     LabelButton::OnGestureEvent(event);
 }
 
 scoped_ptr<LabelButtonBorder> BrowserActionView::CreateDefaultBorder() const {
   scoped_ptr<LabelButtonBorder> border = LabelButton::CreateDefaultBorder();
   border->set_insets(gfx::Insets(kBorderInset, kBorderInset,
                                  kBorderInset, kBorderInset));
   return border.Pass();
 }
 
-bool BrowserActionView::IsEnabled(int tab_id) const {
-  return view_controller_->extension_action()->GetIsVisible(tab_id);
-}
-
-gfx::ImageSkia BrowserActionView::GetIconWithBadge() {
-  int tab_id = view_controller_->GetCurrentTabId();
-  gfx::Size spacing(0, ToolbarView::kVertSpacing);
-  gfx::ImageSkia icon = *view_controller_->GetIcon(tab_id).ToImageSkia();
-  if (!IsEnabled(tab_id))
-    icon = gfx::ImageSkiaOperations::CreateTransparentImage(icon, .25);
-  return extension_action()->GetIconWithBadge(icon, tab_id, spacing);
-}
-
 gfx::ImageSkia BrowserActionView::GetIconForTest() {
   return GetImage(views::Button::STATE_NORMAL);
 }
 
 void BrowserActionView::OnIconUpdated() {
   UpdateState();
-  if (icon_observer_)
-    icon_observer_->OnIconUpdated(GetIconWithBadge());
 }
 
 views::View* BrowserActionView::GetAsView() {
   return this;
 }
 
 bool BrowserActionView::IsShownInMenu() {
   return delegate_->ShownInsideMenu();
 }
 
 views::FocusManager* BrowserActionView::GetFocusManagerForAccelerator() {
   return GetFocusManager();
 }
 
 views::Widget* BrowserActionView::GetParentForContextMenu() {
   // RunMenuAt expects a nested menu to be parented by the same widget as the
   // already visible menu, in this case the Chrome menu.
   return delegate_->ShownInsideMenu() ?
-      BrowserView::GetBrowserViewForBrowser(view_controller_->browser())
+      BrowserView::GetBrowserViewForBrowser(browser_)
           ->toolbar()->app_menu()->GetWidget() :
       GetWidget();
 }
 
-ExtensionActionViewController*
+ToolbarActionViewController*
 BrowserActionView::GetPreferredPopupViewController() {
   return delegate_->ShownInsideMenu() ?
-      delegate_->GetMainViewForExtension(extension())->view_controller() :
+      delegate_->GetMainViewForAction(this)->view_controller() :
       view_controller();
 }
 
 views::View* BrowserActionView::GetReferenceViewForPopup() {
   // Browser actions in the overflow menu can still show popups, so we may need
   // a reference view other than this button's parent. If so, use the overflow
   // view.
   return visible() ? this : delegate_->GetOverflowReferenceView();
 }
 
 views::MenuButton* BrowserActionView::GetContextMenuButton() {
   DCHECK(visible());  // We should never show a context menu for a hidden item.
   return this;
 }
 
-content::WebContents* BrowserActionView::GetCurrentWebContents() {
+content::WebContents* BrowserActionView::GetCurrentWebContents() const {
   return delegate_->GetCurrentWebContents();
 }
 
 void BrowserActionView::HideActivePopup() {
   delegate_->HideActivePopup();
 }
 
 void BrowserActionView::OnPopupShown(bool grant_tab_permissions) {
   delegate_->SetPopupOwner(this);
   // If this was through direct user action, we press the menu button.
   if (grant_tab_permissions) {
     // We set the state of the menu button we're using as a reference view,
     // which is either this or the overflow reference view.
     // This cast is safe because GetReferenceViewForPopup returns either |this|
     // or delegate_->GetOverflowReferenceView(), which returns a MenuButton.
     views::MenuButton* reference_view =
         static_cast<views::MenuButton*>(GetReferenceViewForPopup());
     pressed_lock_.reset(new views::MenuButton::PressedLock(reference_view));
   }
 }
 
 void BrowserActionView::CleanupPopup() {
   // We need to do these actions synchronously (instead of closing and then
   // performing the rest of the cleanup in OnWidgetDestroyed()) because
   // OnWidgetDestroyed() can be called asynchronously from Close(), and we need
   // to keep the delegate's popup owner up-to-date.
   delegate_->SetPopupOwner(NULL);
   pressed_lock_.reset();  // Unpress the menu button if it was pressed.
 }