chrome/browser/metrics/desktop_engagement/desktop_engagement_observer.h - Issue 2333113002: Rename DesktopEngagement* to DesktopSessionDuration*.

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Side by Side Diff: chrome/browser/metrics/desktop_engagement/desktop_engagement_observer.h

Issue 2333113002: Rename DesktopEngagement* to DesktopSessionDuration*. (Closed)

Patch Set: Created 4 years, 3 months ago

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1 // Copyright 2016 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 #ifndef CHROME_BROWSER_METRICS_DESKTOP_ENGAGEMENT_DESKTOP_ENGAGEMENT_OBSERVER_H_

6 #define CHROME_BROWSER_METRICS_DESKTOP_ENGAGEMENT_DESKTOP_ENGAGEMENT_OBSERVER_H_

7

8 #include "base/macros.h"

9 #include "content/public/browser/render_widget_host.h"

10 #include "content/public/browser/web_contents.h"

11 #include "content/public/browser/web_contents_observer.h"

12 #include "content/public/browser/web_contents_user_data.h"

13 #include "third_party/WebKit/public/web/WebInputEvent.h"

14

15 namespace metrics {

16

17 class DesktopEngagementService;

18

19 // Tracks user input events from web contents and notifies

20 // \|DesktopEngagementService\|.

21 class DesktopEngagementObserver

22 : public content::WebContentsObserver,

23 public content::WebContentsUserData<DesktopEngagementObserver>,

24 public content::RenderWidgetHost::InputEventObserver {

25 public:

26 DesktopEngagementObserver(content::WebContents* web_contents,

27 DesktopEngagementService* service);

28 ~DesktopEngagementObserver() override;

29

30 static DesktopEngagementObserver* CreateForWebContents(

31 content::WebContents* web_contents);

32

33 private:

34 friend class content::WebContentsUserData<DesktopEngagementObserver>;

35

36 // Register / Unregister input event callback to given RenderViewHost

37 void RegisterInputEventObserver(content::RenderViewHost* host);

38 void UnregisterInputEventObserver(content::RenderViewHost* host);

39

40 // content::RenderWidgetHost::InputEventObserver:

41 void OnInputEvent(const blink::WebInputEvent& event) override;

42

43 // content::WebContentsObserver:

44 void RenderViewHostChanged(content::RenderViewHost* old_host,

45 content::RenderViewHost* new_host) override;

46

47 DesktopEngagementService* service_;

48

49 DISALLOW_COPY_AND_ASSIGN(DesktopEngagementObserver);

50 };

51

52 } // namespace metrics

53

54 #endif // CHROME_BROWSER_METRICS_DESKTOP_ENGAGEMENT_DESKTOP_ENGAGEMENT_OBSERVER _H_

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