Upstream version 5.34.104.0
[platform/framework/web/crosswalk.git] / src / ui / web_dialogs / web_dialog_web_contents_delegate.h
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 UI_WEB_DIALOGS_WEB_DIALOG_WEB_CONTENTS_DELEGATE_H_
6 #define UI_WEB_DIALOGS_WEB_DIALOG_WEB_CONTENTS_DELEGATE_H_
7
8 #include "base/compiler_specific.h"
9 #include "content/public/browser/web_contents_delegate.h"
10 #include "ui/web_dialogs/web_dialogs_export.h"
11
12 namespace ui {
13
14 // This class implements (and mostly ignores) most of
15 // content::WebContentsDelegate for use in a Web dialog. Subclasses need only
16 // override a few methods instead of the everything from
17 // content::WebContentsDelegate; this way, implementations on all platforms
18 // behave consistently.
19 class WEB_DIALOGS_EXPORT WebDialogWebContentsDelegate
20     : public content::WebContentsDelegate {
21  public:
22   // Handles OpenURLFromTab and AddNewContents for WebDialogWebContentsDelegate.
23   class WebContentsHandler {
24    public:
25     virtual ~WebContentsHandler() {}
26     virtual content::WebContents* OpenURLFromTab(
27         content::BrowserContext* context,
28         content::WebContents* source,
29         const content::OpenURLParams& params) = 0;
30     virtual void AddNewContents(content::BrowserContext* context,
31                                 content::WebContents* source,
32                                 content::WebContents* new_contents,
33                                 WindowOpenDisposition disposition,
34                                 const gfx::Rect& initial_pos,
35                                 bool user_gesture) = 0;
36   };
37
38   // context and handler must be non-NULL.
39   // Takes the ownership of handler.
40   WebDialogWebContentsDelegate(content::BrowserContext* context,
41                                WebContentsHandler* handler);
42
43   virtual ~WebDialogWebContentsDelegate();
44
45   // The returned browser context is guaranteed to be original if non-NULL.
46   content::BrowserContext* browser_context() const {
47     return browser_context_;
48   }
49
50   // Calling this causes all following events sent from the
51   // WebContents object to be ignored.  It also makes all following
52   // calls to browser_context() return NULL.
53   void Detach();
54
55   // content::WebContentsDelegate declarations.
56   virtual content::WebContents* OpenURLFromTab(
57       content::WebContents* source,
58       const content::OpenURLParams& params) OVERRIDE;
59   virtual void AddNewContents(content::WebContents* source,
60                               content::WebContents* new_contents,
61                               WindowOpenDisposition disposition,
62                               const gfx::Rect& initial_pos,
63                               bool user_gesture,
64                               bool* was_blocked) OVERRIDE;
65   virtual bool IsPopupOrPanel(
66       const content::WebContents* source) const OVERRIDE;
67   virtual bool PreHandleGestureEvent(
68       content::WebContents* source,
69       const blink::WebGestureEvent& event) OVERRIDE;
70
71  private:
72   // Weak pointer.  Always an original profile.
73   content::BrowserContext* browser_context_;
74
75   scoped_ptr<WebContentsHandler> handler_;
76
77   DISALLOW_COPY_AND_ASSIGN(WebDialogWebContentsDelegate);
78 };
79
80 }  // namespace ui
81
82 #endif  // UI_WEB_DIALOGS_WEB_DIALOG_WEB_CONTENTS_DELEGATE_H_