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// Copyright (c) 2012 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 "ui/web_dialogs/constrained_web_dialog_ui.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/lazy_instance.h"
#include "base/property_bag.h"
#include "base/values.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "ui/web_dialogs/web_dialog_delegate.h"
#include "ui/web_dialogs/web_dialog_ui.h"
using content::RenderViewHost;
using content::WebContents;
using content::WebUIMessageHandler;
static base::LazyInstance<
base::PropertyAccessor<ui::ConstrainedWebDialogDelegate*> >
g_constrained_web_dialog_ui_property_accessor = LAZY_INSTANCE_INITIALIZER;
namespace ui {
ConstrainedWebDialogUI::ConstrainedWebDialogUI(content::WebUI* web_ui)
: WebUIController(web_ui) {
}
ConstrainedWebDialogUI::~ConstrainedWebDialogUI() {
}
void ConstrainedWebDialogUI::RenderViewCreated(
RenderViewHost* render_view_host) {
ConstrainedWebDialogDelegate* delegate = GetConstrainedDelegate();
if (!delegate)
return;
WebDialogDelegate* dialog_delegate = delegate->GetWebDialogDelegate();
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) {
web_ui()->AddMessageHandler(*it);
}
// Add a "DialogClose" callback which matches WebDialogUI behavior.
web_ui()->RegisterMessageCallback("DialogClose",
base::Bind(&ConstrainedWebDialogUI::OnDialogCloseMessage,
base::Unretained(this)));
dialog_delegate->OnDialogShown(web_ui(), render_view_host);
}
void ConstrainedWebDialogUI::OnDialogCloseMessage(const ListValue* args) {
ConstrainedWebDialogDelegate* delegate = GetConstrainedDelegate();
if (!delegate)
return;
std::string json_retval;
if (!args->empty() && !args->GetString(0, &json_retval))
NOTREACHED() << "Could not read JSON argument";
delegate->GetWebDialogDelegate()->OnDialogClosed(json_retval);
delegate->OnDialogCloseFromWebUI();
}
ConstrainedWebDialogDelegate* ConstrainedWebDialogUI::GetConstrainedDelegate() {
ConstrainedWebDialogDelegate** property = GetPropertyAccessor().GetProperty(
web_ui()->GetWebContents()->GetPropertyBag());
return property ? *property : NULL;
}
// static
base::PropertyAccessor<ConstrainedWebDialogDelegate*>&
ConstrainedWebDialogUI::GetPropertyAccessor() {
return g_constrained_web_dialog_ui_property_accessor.Get();
}
} // namespace ui
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