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| 1 // Copyright 2014 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/cocoa/handoff_active_url_observer.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "chrome/browser/ui/browser_finder.h" | |
| 9 #include "chrome/browser/ui/browser_list.h" | |
| 10 #include "chrome/browser/ui/cocoa/handoff_active_url_observer_delegate.h" | |
| 11 #include "chrome/browser/ui/tabs/tab_strip_model.h" | |
| 12 #include "content/public/browser/web_contents.h" | |
| 13 | |
| 14 HandoffActiveURLObserver::HandoffActiveURLObserver( | |
| 15 HandoffActiveURLObserverDelegate* delegate) | |
| 16 : delegate_(delegate), | |
| 17 active_tab_strip_model_(nullptr), | |
| 18 active_browser_(nullptr) { | |
| 19 DCHECK(delegate_); | |
| 20 | |
| 21 active_browser_ = chrome::FindLastActiveWithHostDesktopType( | |
| 22 chrome::HOST_DESKTOP_TYPE_NATIVE); | |
| 23 BrowserList::AddObserver(this); | |
| 24 UpdateObservations(); | |
| 25 } | |
| 26 | |
| 27 HandoffActiveURLObserver::~HandoffActiveURLObserver() { | |
| 28 BrowserList::RemoveObserver(this); | |
| 29 StopObservingTabStripModel(); | |
| 30 StopObservingWebContents(); | |
| 31 } | |
| 32 | |
| 33 void HandoffActiveURLObserver::OnBrowserSetLastActive(Browser* browser) { | |
| 34 active_browser_ = browser; | |
| 35 UpdateObservations(); | |
| 36 delegate_->HandoffActiveURLChanged(GetActiveWebContents()); | |
| 37 } | |
| 38 | |
| 39 void HandoffActiveURLObserver::OnBrowserRemoved(Browser* removed_browser) { | |
| 40 if (active_browser_ != removed_browser) | |
| 41 return; | |
| 42 | |
| 43 active_browser_ = chrome::FindLastActiveWithHostDesktopType( | |
| 44 chrome::HOST_DESKTOP_TYPE_NATIVE); | |
| 45 UpdateObservations(); | |
| 46 delegate_->HandoffActiveURLChanged(GetActiveWebContents()); | |
| 47 } | |
| 48 | |
| 49 void HandoffActiveURLObserver::ActiveTabChanged( | |
| 50 content::WebContents* old_contents, | |
| 51 content::WebContents* new_contents, | |
| 52 int index, | |
| 53 int reason) { | |
| 54 StartObservingWebContents(new_contents); | |
| 55 delegate_->HandoffActiveURLChanged(new_contents); | |
| 56 } | |
| 57 | |
| 58 void HandoffActiveURLObserver::TabStripModelDeleted() { | |
| 59 StopObservingTabStripModel(); | |
| 60 StopObservingWebContents(); | |
| 61 } | |
| 62 | |
| 63 void HandoffActiveURLObserver::DidNavigateMainFrame( | |
| 64 const content::LoadCommittedDetails& details, | |
| 65 const content::FrameNavigateParams& params) { | |
| 66 delegate_->HandoffActiveURLChanged(web_contents()); | |
| 67 } | |
| 68 | |
| 69 void HandoffActiveURLObserver::WebContentsDestroyed() { | |
| 70 StopObservingWebContents(); | |
| 71 } | |
| 72 | |
| 73 void HandoffActiveURLObserver::UpdateObservations() { | |
| 74 if (!active_browser_) { | |
| 75 StopObservingTabStripModel(); | |
| 76 StopObservingWebContents(); | |
| 77 return; | |
| 78 } | |
| 79 | |
| 80 TabStripModel* model = active_browser_->tab_strip_model(); | |
| 81 StartObservingTabStripModel(model); | |
| 82 | |
| 83 content::WebContents* web_contents = model->GetActiveWebContents(); | |
| 84 if (web_contents) | |
| 85 StartObservingWebContents(web_contents); | |
| 86 else | |
| 87 StopObservingWebContents(); | |
| 88 } | |
| 89 | |
| 90 void HandoffActiveURLObserver::StartObservingTabStripModel( | |
| 91 TabStripModel* tab_strip_model) { | |
| 92 DCHECK(tab_strip_model); | |
| 93 | |
| 94 if (active_tab_strip_model_ == tab_strip_model) | |
| 95 return; | |
| 96 | |
| 97 StopObservingTabStripModel(); | |
| 98 tab_strip_model->AddObserver(this); | |
| 99 active_tab_strip_model_ = tab_strip_model; | |
| 100 } | |
| 101 | |
| 102 void HandoffActiveURLObserver::StopObservingTabStripModel() { | |
| 103 if (active_tab_strip_model_) { | |
| 104 active_tab_strip_model_->RemoveObserver(this); | |
| 105 active_tab_strip_model_ = nullptr; | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 void HandoffActiveURLObserver::StartObservingWebContents( | |
| 110 content::WebContents* web_contents) { | |
| 111 DCHECK(web_contents); | |
| 112 Observe(web_contents); | |
| 113 } | |
| 114 | |
| 115 void HandoffActiveURLObserver::StopObservingWebContents() { | |
| 116 Observe(nullptr); | |
| 117 } | |
| 118 | |
| 119 content::WebContents* HandoffActiveURLObserver::GetActiveWebContents() { | |
| 120 if (!active_browser_) | |
| 121 return nullptr; | |
| 122 | |
| 123 return active_browser_->tab_strip_model()->GetActiveWebContents(); | |
| 124 } | |
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Chromium Code Reviews
Issue 799583002:
Revert "mac: Allow Chrome to hand off its active URL to other devices." (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master