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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/constrained_html_ui.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/lazy_instance.h"
#include "base/values.h"
#include "chrome/browser/ui/webui/html_dialog_ui.h"
#include "chrome/common/chrome_notification_types.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/public/browser/notification_service.h"
static base::LazyInstance<PropertyAccessor<ConstrainedHtmlUIDelegate*> >
g_constrained_html_ui_property_accessor(base::LINKER_INITIALIZED);
ConstrainedHtmlUI::ConstrainedHtmlUI(TabContents* contents)
: ChromeWebUI(contents) {
}
ConstrainedHtmlUI::~ConstrainedHtmlUI() {
}
void ConstrainedHtmlUI::RenderViewCreated(RenderViewHost* render_view_host) {
ConstrainedHtmlUIDelegate* delegate = GetConstrainedDelegate();
if (!delegate)
return;
HtmlDialogUIDelegate* dialog_delegate = delegate->GetHtmlDialogUIDelegate();
std::vector<WebUIMessageHandler*> handlers;
dialog_delegate->GetWebUIMessageHandlers(&handlers);
render_view_host->SetWebUIProperty("dialogArguments",
dialog_delegate->GetDialogArgs());
for (std::vector<WebUIMessageHandler*>::iterator it = handlers.begin();
it != handlers.end(); ++it) {
(*it)->Attach(this);
AddMessageHandler(*it);
}
// Add a "DialogClose" callback which matches HTMLDialogUI behavior.
RegisterMessageCallback("DialogClose",
base::Bind(&ConstrainedHtmlUI::OnDialogCloseMessage,
base::Unretained(this)));
content::NotificationService::current()->Notify(
chrome::NOTIFICATION_HTML_DIALOG_SHOWN,
content::Source<WebUI>(this),
content::NotificationService::NoDetails());
}
void ConstrainedHtmlUI::OnDialogCloseMessage(const ListValue* args) {
ConstrainedHtmlUIDelegate* delegate = GetConstrainedDelegate();
if (!delegate)
return;
std::string json_retval;
if (!args->empty() && !args->GetString(0, &json_retval))
NOTREACHED() << "Could not read JSON argument";
delegate->GetHtmlDialogUIDelegate()->OnDialogClosed(json_retval);
delegate->OnDialogCloseFromWebUI();
}
ConstrainedHtmlUIDelegate* ConstrainedHtmlUI::GetConstrainedDelegate() {
ConstrainedHtmlUIDelegate** property =
GetPropertyAccessor().GetProperty(tab_contents()->property_bag());
return property ? *property : NULL;
}
// static
PropertyAccessor<ConstrainedHtmlUIDelegate*>&
ConstrainedHtmlUI::GetPropertyAccessor() {
return g_constrained_html_ui_property_accessor.Get();
}
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