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// Copyright 2015 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.
#ifndef CHROME_BROWSER_UI_TOOLBAR_MEDIA_ROUTER_ACTION_H_
#define CHROME_BROWSER_UI_TOOLBAR_MEDIA_ROUTER_ACTION_H_
#include <memory>
#include <string>
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "chrome/browser/media/router/issues_observer.h"
#include "chrome/browser/media/router/media_routes_observer.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "chrome/browser/ui/toolbar/media_router_contextual_menu.h"
#include "chrome/browser/ui/toolbar/toolbar_action_view_controller.h"
#include "chrome/browser/ui/toolbar/toolbar_actions_bar.h"
#include "chrome/browser/ui/toolbar/toolbar_actions_bar_observer.h"
#include "ui/gfx/vector_icons_public.h"
class Browser;
class MediaRouterActionPlatformDelegate;
class TabStripModel;
namespace media_router {
class MediaRouterDialogControllerImpl;
} // namespace media_router
// The class for the Media Router component action that will be shown in
// the toolbar.
class MediaRouterAction : public ToolbarActionViewController,
public media_router::IssuesObserver,
public media_router::MediaRoutesObserver,
public TabStripModelObserver,
public ToolbarActionsBarObserver {
public:
MediaRouterAction(Browser* browser, ToolbarActionsBar* toolbar_actions_bar);
~MediaRouterAction() override;
static SkColor GetIconColor(gfx::VectorIconId icon_id);
// ToolbarActionViewController implementation.
std::string GetId() const override;
void SetDelegate(ToolbarActionViewDelegate* delegate) override;
gfx::Image GetIcon(content::WebContents* web_contents,
const gfx::Size& size) override;
base::string16 GetActionName() const override;
base::string16 GetAccessibleName(content::WebContents* web_contents)
const override;
base::string16 GetTooltip(content::WebContents* web_contents)
const override;
bool IsEnabled(content::WebContents* web_contents) const override;
bool WantsToRun(content::WebContents* web_contents) const override;
bool HasPopup(content::WebContents* web_contents) const override;
void HidePopup() override;
gfx::NativeView GetPopupNativeView() override;
ui::MenuModel* GetContextMenu() override;
void OnContextMenuClosed() override;
bool ExecuteAction(bool by_user) override;
void UpdateState() override;
bool DisabledClickOpensMenu() const override;
// media_router::IssuesObserver:
void OnIssue(const media_router::Issue& issue) override;
void OnIssuesCleared() override;
// media_router::MediaRoutesObserver:
void OnRoutesUpdated(const std::vector<media_router::MediaRoute>& routes,
const std::vector<media_router::MediaRoute::Id>&
joinable_route_ids) override;
// ToolbarStripModelObserver:
void ActiveTabChanged(content::WebContents* old_contents,
content::WebContents* new_contents,
int index,
int reason) override;
// ToolbarActionsBarObserver:
void OnToolbarActionsBarAnimationEnded() override;
void OnDialogHidden();
void OnDialogShown();
private:
// Registers |this| with the MediaRouterDialogControllerImpl associated with
// |delegate_|'s current WebContents if |this| is not shown in overflow mode.
void RegisterWithDialogController();
// Called when a new browser window is opened or when |delegate_| is swapped
// out to be non-null and has a valid WebContents.
// This updates the pressed/unpressed state of the icon, which is different
// on a per-tab basis.
void UpdateDialogState();
// Returns a reference to the MediaRouterDialogControllerImpl associated with
// |delegate_|'s current WebContents. Guaranteed to be non-null.
// |delegate_| and its current WebContents must not be null.
// Marked virtual for tests.
virtual media_router::MediaRouterDialogControllerImpl*
GetMediaRouterDialogController();
// Overridden by tests.
virtual MediaRouterActionPlatformDelegate* GetPlatformDelegate();
// Checks if the current icon of MediaRouterAction has changed. If so,
// updates |current_icon_|.
void MaybeUpdateIcon();
gfx::VectorIconId GetCurrentIcon() const;
// The current icon to show. This is updated based on the current issues and
// routes since |this| is an IssueObserver and MediaRoutesObserver.
gfx::VectorIconId current_icon_;
// The current issue shown in the Media Router WebUI, set in OnIssue() and
// cleared in OnIssuesCleared().
std::unique_ptr<media_router::IssueInfo> current_issue_;
// Whether a local displayable active route exists.
bool has_local_display_route_;
// Whether the Media Router dialog is shown in the current tab.
// This should only be updated in OnDialogShown() and OnDialogHidden().
bool has_dialog_;
ToolbarActionViewDelegate* delegate_;
Browser* const browser_;
ToolbarActionsBar* const toolbar_actions_bar_;
// The delegate to handle platform-specific implementations.
std::unique_ptr<MediaRouterActionPlatformDelegate> platform_delegate_;
MediaRouterContextualMenu contextual_menu_;
ScopedObserver<TabStripModel, TabStripModelObserver>
tab_strip_model_observer_;
ScopedObserver<ToolbarActionsBar, ToolbarActionsBarObserver>
toolbar_actions_bar_observer_;
base::WeakPtrFactory<MediaRouterAction> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(MediaRouterAction);
};
#endif // CHROME_BROWSER_UI_TOOLBAR_MEDIA_ROUTER_ACTION_H_
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