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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 
OptionsManagedBannerHandler(WebUI * web_ui,const string16 & page_name,OptionsPage page)12 OptionsManagedBannerHandler::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 
~OptionsManagedBannerHandler()20 OptionsManagedBannerHandler::~OptionsManagedBannerHandler() {}
21 
OnUpdateVisibility()22 void OptionsManagedBannerHandler::OnUpdateVisibility() {
23   // A preference that may be managed has changed.  Update our visibility
24   // state.
25   SetupBannerVisibility();
26 }
27 
SetupBannerVisibility()28 void 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