options_managed_banner_handler.cc revision ddb351dbec246cf1fab5ec20d2d5520909041de1 
1// Copyright (c) 2011 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/options/options_managed_banner_handler.h"
6
7#include "base/string_util.h"
8#include "base/values.h"
9#include "chrome/browser/profiles/profile.h"
10#include "content/browser/webui/web_ui.h"
11
12OptionsManagedBannerHandler::OptionsManagedBannerHandler(
13    WebUI* web_ui, const string16& page_name, OptionsPage page)
14    : policy::ManagedPrefsBannerBase(web_ui->GetProfile()->GetPrefs(), page),
15      web_ui_(web_ui), page_name_(page_name), page_(page) {
16  // Initialize the visibility state of the banner.
17  SetupBannerVisibility();
18}
19
20OptionsManagedBannerHandler::~OptionsManagedBannerHandler() {}
21
22void OptionsManagedBannerHandler::OnUpdateVisibility() {
23  // A preference that may be managed has changed.  Update our visibility
24  // state.
25  SetupBannerVisibility();
26}
27
28void OptionsManagedBannerHandler::SetupBannerVisibility() {
29  // Construct the banner visibility script name.
30  std::string script = "options." + UTF16ToASCII(page_name_) +
31      ".getInstance().setManagedBannerVisibility";
32
33  // Get the visiblity value from the base class.
34  FundamentalValue visibility(DetermineVisibility());
35
36  // Set the managed state in the javascript handler.
37  web_ui_->CallJavascriptFunction(script, visibility);
38}
39