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| 1 // Copyright (c) 2012 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_UI_TABS_TAB_FINDER_H_ | |
| 6 #define CHROME_BROWSER_UI_TABS_TAB_FINDER_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include <map> | |
| 10 #include <set> | |
| 11 | |
| 12 #include "base/basictypes.h" | |
| 13 #include "base/memory/singleton.h" | |
| 14 #include "chrome/browser/cancelable_request.h" | |
| 15 #include "chrome/browser/history/history_types.h" | |
| 16 #include "content/public/browser/notification_observer.h" | |
| 17 #include "content/public/browser/notification_registrar.h" | |
| 18 | |
| 19 class Browser; | |
| 20 class GURL; | |
| 21 | |
| 22 namespace content { | |
| 23 class WebContents; | |
| 24 struct FrameNavigateParams; | |
| 25 struct LoadCommittedDetails; | |
| 26 } | |
| 27 | |
| 28 // TabFinder is used to locate a tab by URL. TabFinder matches tabs based | |
| 29 // on the tabs current url, or the start of the redirect chain. | |
| 30 // | |
| 31 // TODO: if we end up keeping this (moving it out of about:flags) then we | |
| 32 // should persist the start of the redirect chain in the navigation entry. | |
| 33 class TabFinder : public content::NotificationObserver { | |
| 34 public: | |
| 35 // Returns the TabFinder, or NULL if TabFinder is not enabled. | |
| 36 static TabFinder* GetInstance(); | |
| 37 | |
| 38 // Returns true if TabFinder is enabled. | |
| 39 static bool IsEnabled(); | |
| 40 | |
| 41 // Returns the tab that matches the specified url. If a tab is found the | |
| 42 // browser containing the tab is set in |existing_browser|. This searches | |
| 43 // in |browser| first before checking any other browsers. | |
| 44 content::WebContents* FindTab(Browser* browser, | |
| 45 const GURL& url, | |
| 46 Browser** existing_browser); | |
| 47 | |
| 48 // content::NotificationObserver overrides: | |
| 49 virtual void Observe(int type, | |
| 50 const content::NotificationSource& source, | |
| 51 const content::NotificationDetails& details) OVERRIDE; | |
| 52 | |
| 53 private: | |
| 54 friend struct DefaultSingletonTraits<TabFinder>; | |
| 55 | |
| 56 class WebContentsObserverImpl; | |
| 57 | |
| 58 typedef std::map<content::WebContents*, GURL> WebContentsToURLMap; | |
| 59 typedef std::set<WebContentsObserverImpl*> WebContentsObservers; | |
| 60 | |
| 61 TabFinder(); | |
| 62 virtual ~TabFinder(); | |
| 63 | |
| 64 // Forwarded from WebContentsObserverImpl. | |
| 65 void DidNavigateAnyFrame( | |
| 66 content::WebContents* source, | |
| 67 const content::LoadCommittedDetails& details, | |
| 68 const content::FrameNavigateParams& params); | |
| 69 | |
| 70 // Returns true if the tab's current url is |url|, or the start of the | |
| 71 // redirect chain for the tab is |url|. | |
| 72 bool TabMatchesURL(content::WebContents* web_contents, const GURL& url); | |
| 73 | |
| 74 // Returns the first tab in the specified browser that matches the specified | |
| 75 // url. Returns NULL if there are no tabs matching the specified url. | |
| 76 content::WebContents* FindTabInBrowser(Browser* browser, const GURL& url); | |
| 77 | |
| 78 // If we're not currently tracking |tab| this creates a | |
| 79 // WebContentsObserverImpl to listen for navigations. | |
| 80 void TrackTab(content::WebContents* tab); | |
| 81 | |
| 82 // Invoked when a WebContents is being destroyed. | |
| 83 void TabDestroyed(WebContentsObserverImpl* observer); | |
| 84 | |
| 85 // Cancels any pending requests for the specified tabs redirect chain. | |
| 86 void CancelRequestsFor(content::WebContents* web_contents); | |
| 87 | |
| 88 // Starts the fetch for the redirect chain of the specified WebContents. | |
| 89 // QueryRedirectsToComplete is invoked when the redirect chain is retrieved. | |
| 90 void FetchRedirectStart(content::WebContents* tab); | |
| 91 | |
| 92 // Callback when we get the redirect list for a tab. | |
| 93 void QueryRedirectsToComplete(CancelableRequestProvider::Handle handle, | |
| 94 GURL url, | |
| 95 bool success, | |
| 96 history::RedirectList* redirects); | |
| 97 | |
| 98 // Maps from WebContents to the start of the redirect chain. | |
| 99 WebContentsToURLMap web_contents_to_url_; | |
| 100 | |
| 101 CancelableRequestConsumerTSimple<content::WebContents*> callback_consumer_; | |
| 102 | |
| 103 content::NotificationRegistrar registrar_; | |
| 104 | |
| 105 WebContentsObservers tab_contents_observers_; | |
| 106 | |
| 107 DISALLOW_COPY_AND_ASSIGN(TabFinder); | |
| 108 }; | |
| 109 | |
| 110 #endif // CHROME_BROWSER_UI_TABS_TAB_FINDER_H_ | |
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Chromium Code Reviews
Issue 10631009:
Removes TabFinder. We're not going to use it. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src