Home | History | Annotate | Download | only in webui 
      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/textfields_ui.h"
      6 
      7 #include <algorithm>
      8 #include <string>
      9 
     10 #include "base/memory/singleton.h"
     11 #include "base/string_piece.h"
     12 #include "base/values.h"
     13 #include "chrome/browser/profiles/profile.h"
     14 #include "chrome/common/jstemplate_builder.h"
     15 #include "chrome/common/url_constants.h"
     16 #include "content/browser/browser_thread.h"
     17 #include "content/browser/tab_contents/tab_contents.h"
     18 #include "grit/browser_resources.h"
     19 #include "ui/base/resource/resource_bundle.h"
     20 
     21 /**
     22  * TextfieldsUIHTMLSource implementation.
     23  */
     24 TextfieldsUIHTMLSource::TextfieldsUIHTMLSource()
     25     : DataSource(chrome::kChromeUITextfieldsHost, MessageLoop::current()) {
     26 }
     27 
     28 void TextfieldsUIHTMLSource::StartDataRequest(const std::string& path,
     29                                               bool is_incognito,
     30                                               int request_id) {
     31   const std::string full_html = ResourceBundle::GetSharedInstance()
     32       .GetRawDataResource(IDR_TEXTFIELDS_HTML).as_string();
     33 
     34   scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
     35   html_bytes->data.resize(full_html.size());
     36   std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
     37 
     38   SendResponse(request_id, html_bytes);
     39 }
     40 
     41 std::string TextfieldsUIHTMLSource::GetMimeType(
     42     const std::string& /* path */) const {
     43   return "text/html";
     44 }
     45 
     46 TextfieldsUIHTMLSource::~TextfieldsUIHTMLSource() {}
     47 
     48 /**
     49  * TextfieldsDOMHandler implementation.
     50  */
     51 TextfieldsDOMHandler::TextfieldsDOMHandler() : WebUIMessageHandler() {}
     52 
     53 void TextfieldsDOMHandler::RegisterMessages() {
     54   web_ui_->RegisterMessageCallback("textfieldValue",
     55       NewCallback(this, &TextfieldsDOMHandler::HandleTextfieldValue));
     56 }
     57 
     58 void TextfieldsDOMHandler::HandleTextfieldValue(const ListValue* args) {
     59   static_cast<TextfieldsUI*>(web_ui_)->set_text(
     60       UTF16ToWideHack(ExtractStringValue(args)));
     61 }
     62 
     63 /**
     64  * TextfieldsUI implementation.
     65  */
     66 TextfieldsUI::TextfieldsUI(TabContents* contents) : WebUI(contents) {
     67   TextfieldsDOMHandler* handler = new TextfieldsDOMHandler();
     68   AddMessageHandler(handler);
     69   handler->Attach(this);
     70 
     71   TextfieldsUIHTMLSource* html_source = new TextfieldsUIHTMLSource();
     72 
     73   // Set up the chrome://textfields/ source.
     74   contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
     75 }
     76