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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 #include "chrome/browser/ui/constrained_window_tab_helper.h" | |
6 | |
7 #include "chrome/browser/ui/constrained_window.h" | |
8 #include "chrome/browser/ui/constrained_window_tab_helper_delegate.h" | |
9 #include "chrome/common/render_messages.h" | |
10 #include "content/public/browser/navigation_details.h" | |
11 #include "content/public/browser/navigation_entry.h" | |
12 #include "content/public/browser/render_view_host.h" | |
13 #include "content/public/browser/render_widget_host_view.h" | |
14 #include "content/public/browser/web_contents.h" | |
15 #include "net/base/registry_controlled_domains/registry_controlled_domain.h" | |
16 | |
17 using content::WebContents; | |
18 | |
19 DEFINE_WEB_CONTENTS_USER_DATA_KEY(ConstrainedWindowTabHelper) | |
20 | |
21 ConstrainedWindowTabHelper::ConstrainedWindowTabHelper( | |
22 content::WebContents* web_contents) | |
23 : content::WebContentsObserver(web_contents), | |
24 delegate_(NULL) { | |
25 } | |
26 | |
27 ConstrainedWindowTabHelper::~ConstrainedWindowTabHelper() { | |
28 DCHECK(child_dialogs_.empty()); | |
29 } | |
30 | |
31 void ConstrainedWindowTabHelper::AddDialog( | |
32 ConstrainedWindow* window) { | |
33 child_dialogs_.push_back(window); | |
34 | |
35 if (child_dialogs_.size() == 1 && window->CanShowWebContentsModalDialog()) { | |
36 window->ShowWebContentsModalDialog(); | |
37 BlockWebContentsInteraction(true); | |
38 } | |
39 } | |
40 | |
41 void ConstrainedWindowTabHelper::CloseAllDialogs() { | |
42 // Clear out any web contents modal dialogs since we are leaving this page | |
43 // entirely. To ensure that we iterate over every element in child_dialogs_ | |
44 // we need to use a copy of child_dialogs_. Otherwise if | |
45 // window->CloseWebContentsModalDialog() modifies child_dialogs_ we could end | |
46 // up skipping some elements. | |
47 WebContentsModalDialogList child_dialogs_copy(child_dialogs_); | |
48 for (WebContentsModalDialogList::iterator it = child_dialogs_copy.begin(); | |
49 it != child_dialogs_copy.end(); ++it) { | |
50 ConstrainedWindow* window = *it; | |
51 if (window) { | |
52 window->CloseWebContentsModalDialog(); | |
53 BlockWebContentsInteraction(false); | |
54 } | |
55 } | |
56 } | |
57 | |
58 void ConstrainedWindowTabHelper::WillClose(ConstrainedWindow* window) { | |
59 WebContentsModalDialogList::iterator i( | |
60 std::find(child_dialogs_.begin(), child_dialogs_.end(), window)); | |
61 bool removed_topmost_window = i == child_dialogs_.begin(); | |
62 if (i != child_dialogs_.end()) | |
63 child_dialogs_.erase(i); | |
64 if (child_dialogs_.empty()) { | |
65 BlockWebContentsInteraction(false); | |
66 } else { | |
67 if (removed_topmost_window) | |
68 child_dialogs_[0]->ShowWebContentsModalDialog(); | |
69 BlockWebContentsInteraction(true); | |
70 } | |
71 } | |
72 | |
73 void ConstrainedWindowTabHelper::BlockWebContentsInteraction(bool blocked) { | |
74 WebContents* contents = web_contents(); | |
75 if (!contents) { | |
76 // The WebContents has already disconnected. | |
77 return; | |
78 } | |
79 | |
80 // RenderViewHost may be NULL during shutdown. | |
81 content::RenderViewHost* host = contents->GetRenderViewHost(); | |
82 if (host) { | |
83 host->SetIgnoreInputEvents(blocked); | |
84 host->Send(new ChromeViewMsg_SetVisuallyDeemphasized( | |
85 host->GetRoutingID(), blocked)); | |
86 } | |
87 if (delegate_) | |
88 delegate_->SetWebContentsBlocked(contents, blocked); | |
89 } | |
90 | |
91 void ConstrainedWindowTabHelper::DidNavigateMainFrame( | |
92 const content::LoadCommittedDetails& details, | |
93 const content::FrameNavigateParams& params) { | |
94 // Close constrained windows if necessary. | |
95 if (!net::RegistryControlledDomainService::SameDomainOrHost( | |
96 details.previous_url, details.entry->GetURL())) | |
97 CloseAllDialogs(); | |
98 } | |
99 | |
100 void ConstrainedWindowTabHelper::DidGetIgnoredUIEvent() { | |
101 if (dialog_count()) { | |
102 ConstrainedWindow* window = *dialog_begin(); | |
103 window->FocusWebContentsModalDialog(); | |
104 } | |
105 } | |
106 | |
107 void ConstrainedWindowTabHelper::WebContentsDestroyed(WebContents* tab) { | |
108 // First cleanly close all child windows. | |
109 // TODO(mpcomplete): handle case if MaybeCloseChildWindows() already asked | |
110 // some of these to close. CloseWindows is async, so it might get called | |
111 // twice before it runs. | |
112 CloseAllDialogs(); | |
113 } | |
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