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1 // Copyright 2013 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_OVERLAY_H_ | |
6 #define CHROME_BROWSER_INSTANT_INSTANT_OVERLAY_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/basictypes.h" | |
sreeram
2013/02/01 20:36:53
#include "base/gtest_prod_util.h"
(for the FRIEND
samarth
2013/02/04 20:43:32
Done.
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11 #include "base/compiler_specific.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/string16.h" | |
sreeram
2013/02/01 20:36:53
No need for this include (the only reference to st
samarth
2013/02/04 20:43:32
Done.
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14 #include "chrome/browser/history/history_types.h" | |
15 #include "chrome/browser/instant/instant_controller.h" | |
sreeram
2013/02/01 20:36:53
You don't need this include. You just need a forwa
samarth
2013/02/04 20:43:32
I need it for the instant_controller() accessor be
| |
16 #include "chrome/browser/instant/instant_loader.h" | |
17 #include "chrome/browser/instant/instant_page.h" | |
18 | |
19 class Profile; | |
sreeram
2013/02/01 20:36:53
Add a forward declaration for content::WebContents
samarth
2013/02/04 20:43:32
Done.
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20 | |
21 // InstantOverlay is used to communicate with a preview WebContents that it owns | |
22 // and loads the "Instant URL" into. This preview can appear and disappear at | |
23 // will as the user types in the omnibox. | |
24 class InstantOverlay : public InstantPage, | |
25 public InstantLoader::Delegate { | |
26 public: | |
27 // Returns the InstantOverlay for |contents| if it's used for Instant. | |
28 static InstantOverlay* FromWebContents(const content::WebContents* contents); | |
29 | |
30 InstantOverlay(InstantController* controller, | |
31 const std::string& instant_url); | |
32 virtual ~InstantOverlay(); | |
33 | |
34 // Creates a new WebContents and loads |instant_url_| into it. Uses | |
35 // |active_tab|, if non-NULL, to initialize the size of the WebContents. | |
36 void InitContents(Profile* profile, | |
37 const content::WebContents* active_tab); | |
38 | |
39 // Releases the overlay WebContents. This should be called when the overlay | |
40 // is committed. | |
41 scoped_ptr<content::WebContents> ReleaseContents() WARN_UNUSED_RESULT; | |
42 | |
43 // Returns the URL that we're loading. | |
44 const std::string& instant_url() const { return instant_url_; } | |
45 | |
46 // Returns whether the underlying contents is stale (i.e. was loaded too long | |
47 // ago). | |
48 bool is_stale() const { return is_stale_; } | |
49 | |
50 // Returns true if the mouse or a touch pointer is down due to activating the | |
51 // preview contents. | |
52 bool is_pointer_down_from_activate() const { | |
53 return is_pointer_down_from_activate_; | |
54 } | |
55 | |
56 // Returns info about the last navigation by the Instant page. If the page | |
57 // hasn't navigated since the last Update(), the URL is empty. | |
58 const history::HistoryAddPageArgs& last_navigation() const { | |
59 return last_navigation_; | |
60 } | |
61 | |
62 // Called by the history tab helper with information that it would have added | |
63 // to the history service had this WebContents not been used for Instant. | |
64 void DidNavigate(const history::HistoryAddPageArgs& add_page_args); | |
65 | |
66 // Returns true if the overlay is using | |
67 // InstantController::kLocalOmniboxPopupURL as the |instant_url_|. | |
68 bool IsUsingLocalPreview() const; | |
69 | |
70 // Overridden from InstantPage: | |
71 virtual void Update(const string16& text, | |
72 size_t selection_start, | |
73 size_t selection_end, | |
74 bool verbatim) OVERRIDE; | |
75 | |
76 private: | |
77 FRIEND_TEST_ALL_PREFIXES(InstantTest, InstantOverlayRefresh); | |
78 | |
79 // Helper to access delegate() as an InstantController object. | |
80 InstantController* instant_controller() const { | |
81 return static_cast<InstantController*>(delegate()); | |
82 } | |
83 | |
84 // Overriden from InstantLoader::Delegate: | |
85 virtual void OnSwappedContents() OVERRIDE; | |
86 virtual void OnFocus() OVERRIDE; | |
87 virtual void OnMouseDown() OVERRIDE; | |
88 virtual void OnMouseUp() OVERRIDE; | |
89 virtual content::WebContents* OpenURLFromTab( | |
90 content::WebContents* source, | |
91 const content::OpenURLParams& params) OVERRIDE; | |
92 | |
93 // Called when the underlying page becomes stale. | |
94 void HandleStalePage(); | |
95 | |
96 InstantLoader loader_; | |
97 const std::string instant_url_; | |
98 bool is_stale_; | |
99 bool is_pointer_down_from_activate_; | |
100 history::HistoryAddPageArgs last_navigation_; | |
101 | |
102 DISALLOW_COPY_AND_ASSIGN(InstantOverlay); | |
103 }; | |
104 | |
105 #endif // CHROME_BROWSER_INSTANT_INSTANT_OVERLAY_H_ | |
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