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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_ANDROID_HUNG_RENDERER_INFOBAR_DELEGATE_H_
#define CHROME_BROWSER_ANDROID_HUNG_RENDERER_INFOBAR_DELEGATE_H_
#include "base/macros.h"
#include "components/infobars/core/confirm_infobar_delegate.h"
namespace content {
class RenderProcessHost;
}
class InfoBarService;
// A hung renderer infobar is shown when the when the renderer is deemed
// unresponsive. The infobar provides the user with a choice of either
// waiting for the renderer to regain responsiveness, or killing the
// renderer immediately. This class provides the resources necessary to
// display such an infobar, also logging the action taken by the user
// (if any) for UMA purposes.
class HungRendererInfoBarDelegate : public ConfirmInfoBarDelegate {
public:
// Creates a hung renderer InfoBar, adding it to the provided
// |infobar_service|. The |render_process_host| will be used to kill the
// renderer process if the user so chooses.
static void Create(InfoBarService* infobar_service,
content::RenderProcessHost* render_process_host);
// Called if the renderer regains responsiveness before the infobar is
// dismissed.
void OnRendererResponsive();
private:
// Keep these values in alignment with their histograms.xml counterparts.
enum Event {
WAIT_CLICKED = 0,
KILL_CLICKED,
CLOSE_CLICKED,
RENDERER_BECAME_RESPONSIVE,
TAB_CLOSED,
EVENT_COUNT
};
explicit HungRendererInfoBarDelegate(
content::RenderProcessHost* render_process_host);
~HungRendererInfoBarDelegate() override;
// ConfirmInfoBarDelegate:
infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
void InfoBarDismissed() override;
HungRendererInfoBarDelegate* AsHungRendererInfoBarDelegate() override;
int GetIconId() const override;
base::string16 GetMessageText() const override;
base::string16 GetButtonLabel(InfoBarButton button) const override;
bool Accept() override;
bool Cancel() override;
void LogEvent(Event event);
// Used to terminate the renderer process if the user clicks the kill button.
content::RenderProcessHost* render_process_host_;
bool terminal_event_logged_for_uma_;
DISALLOW_COPY_AND_ASSIGN(HungRendererInfoBarDelegate);
};
#endif // CHROME_BROWSER_ANDROID_HUNG_RENDERER_INFOBAR_DELEGATE_H_
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