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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/webui/constrained_html_ui.h" | |
| 6 | |
| 7 #include <string> | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/bind_helpers.h" | |
| 12 #include "base/lazy_instance.h" | |
| 13 #include "base/property_bag.h" | |
| 14 #include "base/values.h" | |
| 15 #include "chrome/browser/ui/webui/html_dialog_ui.h" | |
| 16 #include "chrome/common/chrome_notification_types.h" | |
| 17 #include "content/public/browser/notification_service.h" | |
| 18 #include "content/public/browser/render_view_host.h" | |
| 19 #include "content/public/browser/web_contents.h" | |
| 20 #include "content/public/browser/web_ui.h" | |
| 21 | |
| 22 using content::RenderViewHost; | |
| 23 using content::WebContents; | |
| 24 using content::WebUIMessageHandler; | |
| 25 | |
| 26 static base::LazyInstance<base::PropertyAccessor<ConstrainedHtmlUIDelegate*> > | |
| 27 g_constrained_html_ui_property_accessor = LAZY_INSTANCE_INITIALIZER; | |
| 28 | |
| 29 ConstrainedHtmlUI::ConstrainedHtmlUI(content::WebUI* web_ui) | |
| 30 : WebUIController(web_ui) { | |
| 31 } | |
| 32 | |
| 33 ConstrainedHtmlUI::~ConstrainedHtmlUI() { | |
| 34 } | |
| 35 | |
| 36 void ConstrainedHtmlUI::RenderViewCreated(RenderViewHost* render_view_host) { | |
| 37 ConstrainedHtmlUIDelegate* delegate = GetConstrainedDelegate(); | |
| 38 if (!delegate) | |
| 39 return; | |
| 40 | |
| 41 HtmlDialogUIDelegate* dialog_delegate = delegate->GetHtmlDialogUIDelegate(); | |
| 42 std::vector<WebUIMessageHandler*> handlers; | |
| 43 dialog_delegate->GetWebUIMessageHandlers(&handlers); | |
| 44 render_view_host->SetWebUIProperty("dialogArguments", | |
| 45 dialog_delegate->GetDialogArgs()); | |
| 46 for (std::vector<WebUIMessageHandler*>::iterator it = handlers.begin(); | |
| 47 it != handlers.end(); ++it) { | |
| 48 web_ui()->AddMessageHandler(*it); | |
| 49 } | |
| 50 | |
| 51 // Add a "DialogClose" callback which matches HTMLDialogUI behavior. | |
| 52 web_ui()->RegisterMessageCallback("DialogClose", | |
| 53 base::Bind(&ConstrainedHtmlUI::OnDialogCloseMessage, | |
| 54 base::Unretained(this))); | |
| 55 | |
| 56 content::NotificationService::current()->Notify( | |
| 57 chrome::NOTIFICATION_HTML_DIALOG_SHOWN, | |
| 58 content::Source<content::WebUI>(web_ui()), | |
| 59 content::Details<RenderViewHost>(render_view_host)); | |
| 60 } | |
| 61 | |
| 62 void ConstrainedHtmlUI::OnDialogCloseMessage(const ListValue* args) { | |
| 63 ConstrainedHtmlUIDelegate* delegate = GetConstrainedDelegate(); | |
| 64 if (!delegate) | |
| 65 return; | |
| 66 | |
| 67 std::string json_retval; | |
| 68 if (!args->empty() && !args->GetString(0, &json_retval)) | |
| 69 NOTREACHED() << "Could not read JSON argument"; | |
| 70 delegate->GetHtmlDialogUIDelegate()->OnDialogClosed(json_retval); | |
| 71 delegate->OnDialogCloseFromWebUI(); | |
| 72 } | |
| 73 | |
| 74 ConstrainedHtmlUIDelegate* ConstrainedHtmlUI::GetConstrainedDelegate() { | |
| 75 ConstrainedHtmlUIDelegate** property = GetPropertyAccessor().GetProperty( | |
| 76 web_ui()->GetWebContents()->GetPropertyBag()); | |
| 77 return property ? *property : NULL; | |
| 78 } | |
| 79 | |
| 80 // static | |
| 81 base::PropertyAccessor<ConstrainedHtmlUIDelegate*>& | |
| 82 ConstrainedHtmlUI::GetPropertyAccessor() { | |
| 83 return g_constrained_html_ui_property_accessor.Get(); | |
| 84 } | |
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