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| 1 // Copyright 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_INSTANT_INSTANT_NTP_H_ |
| 6 #define CHROME_BROWSER_INSTANT_INSTANT_NTP_H_ |
| 7 |
| 8 #include <string> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/basictypes.h" |
| 12 #include "base/compiler_specific.h" |
| 13 #include "base/memory/scoped_ptr.h" |
| 14 #include "chrome/browser/instant/instant_loader.h" |
| 15 #include "chrome/browser/instant/instant_page.h" |
| 16 |
| 17 class InstantController; |
| 18 class InstantLoader; |
| 19 class Profile; |
| 20 struct ThemeBackgroundInfo; |
| 21 |
| 22 namespace content { |
| 23 class WebContents; |
| 24 } |
| 25 |
| 26 // InstantNTP is used to preload an Instant page that will be swapped in when a |
| 27 // user navigates to a New Tab Page (NTP). The InstantNTP contents are never |
| 28 // shown in an un-committed state. |
| 29 class InstantNTP : public InstantPage, |
| 30 public InstantLoader::Delegate { |
| 31 public: |
| 32 // Doesn't take ownership of |controller|. |
| 33 InstantNTP(InstantController* controller, const std::string& instant_url); |
| 34 virtual ~InstantNTP(); |
| 35 |
| 36 // Creates a new WebContents and loads |instant_url_| into it. Uses |
| 37 // |active_tab|, if non-NULL, to initialize the size of the WebContents. |
| 38 void InitContents(Profile* profile, |
| 39 const content::WebContents* active_tab); |
| 40 |
| 41 // Overriden from InstantPage. |
| 42 virtual content::WebContents* contents() const OVERRIDE { |
| 43 return loader_->contents(); |
| 44 } |
| 45 |
| 46 // Releases the WebContents for the instant page, passing ownership to the |
| 47 // caller. This should be called when the page is about to be committed. |
| 48 content::WebContents* ReleaseContents() WARN_UNUSED_RESULT; |
| 49 |
| 50 // Returns the URL that we're loading. |
| 51 const std::string& instant_url() const { return instant_url_; } |
| 52 |
| 53 // Returns whether the underlying contents is stale (i.e. was loaded too long |
| 54 // ago). |
| 55 bool is_stale() const { return is_stale_; } |
| 56 |
| 57 private: |
| 58 // Overriden from InstantLoader::Delegate. |
| 59 virtual content::WebContents* ReplaceAndReleaseContents( |
| 60 content::WebContents* new_contents) OVERRIDE; |
| 61 virtual void OnFocus() OVERRIDE; |
| 62 virtual bool OnOpenURL() OVERRIDE; |
| 63 virtual void SetPointerDown() OVERRIDE; |
| 64 virtual void MaybeCommitFromPointerRelease() OVERRIDE; |
| 65 virtual void OnStalePage() OVERRIDE; |
| 66 |
| 67 // Overridden from InstantAPIWrapper::Controller. |
| 68 virtual void OnUpdate() OVERRIDE; |
| 69 virtual bool OnRenderViewGone() const OVERRIDE; |
| 70 virtual bool OnAboutToNavigateMainFrame() const OVERRIDE; |
| 71 virtual bool OnSetSuggestions() const OVERRIDE; |
| 72 virtual bool OnShowInstantPreview() const OVERRIDE; |
| 73 virtual bool OnStartCapturingKeyStrokes() const OVERRIDE; |
| 74 virtual bool OnStopCapturingKeyStrokes() const OVERRIDE; |
| 75 virtual bool OnNavigateToURL() const OVERRIDE; |
| 76 |
| 77 scoped_ptr<InstantLoader> loader_; |
| 78 const std::string instant_url_; |
| 79 bool is_stale_; |
| 80 |
| 81 DISALLOW_COPY_AND_ASSIGN(InstantNTP); |
| 82 }; |
| 83 |
| 84 #endif // CHROME_BROWSER_INSTANT_INSTANT_NTP_H_ |
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