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      1 // Copyright 2014 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 "ui/keyboard/webui/vk_webui_controller.h"
      6 
      7 #include "base/strings/string_util.h"
      8 #include "base/strings/stringprintf.h"
      9 #include "content/public/browser/render_frame_host.h"
     10 #include "content/public/browser/render_view_host.h"
     11 #include "content/public/browser/web_contents.h"
     12 #include "content/public/browser/web_ui_data_source.h"
     13 #include "content/public/common/service_registry.h"
     14 #include "grit/keyboard_resources.h"
     15 #include "grit/keyboard_resources_map.h"
     16 #include "mojo/public/cpp/bindings/interface_impl.h"
     17 #include "mojo/public/cpp/system/core.h"
     18 #include "ui/keyboard/keyboard_constants.h"
     19 #include "ui/keyboard/keyboard_util.h"
     20 #include "ui/keyboard/webui/vk_mojo_handler.h"
     21 
     22 namespace keyboard {
     23 
     24 namespace {
     25 
     26 content::WebUIDataSource* CreateKeyboardUIDataSource() {
     27   content::WebUIDataSource* source =
     28       content::WebUIDataSource::Create(kKeyboardHost);
     29 
     30   size_t count = 0;
     31   const GritResourceMap* resources = GetKeyboardExtensionResources(&count);
     32   source->SetDefaultResource(IDR_KEYBOARD_INDEX);
     33 
     34   const std::string keyboard_host = base::StringPrintf("%s/", kKeyboardHost);
     35   for (size_t i = 0; i < count; ++i) {
     36     size_t offset = 0;
     37     // The webui URL needs to skip the 'keyboard/' at the front of the resource
     38     // names, since it is part of the data-source name.
     39     if (StartsWithASCII(std::string(resources[i].name), keyboard_host, false))
     40       offset = keyboard_host.length();
     41     source->AddResourcePath(resources[i].name + offset, resources[i].value);
     42   }
     43   return source;
     44 }
     45 
     46 }  // namespace
     47 
     48 ////////////////////////////////////////////////////////////////////////////////
     49 // VKWebUIController:
     50 
     51 VKWebUIController::VKWebUIController(content::WebUI* web_ui)
     52     : WebUIController(web_ui), weak_factory_(this) {
     53   content::BrowserContext* browser_context =
     54       web_ui->GetWebContents()->GetBrowserContext();
     55   content::WebUIDataSource::Add(browser_context, CreateKeyboardUIDataSource());
     56   content::WebUIDataSource::AddMojoDataSource(browser_context)->AddResourcePath(
     57       "ui/keyboard/webui/keyboard.mojom", IDR_KEYBOARD_MOJO_GEN_JS);
     58 }
     59 
     60 VKWebUIController::~VKWebUIController() {
     61 }
     62 
     63 void VKWebUIController::RenderViewCreated(content::RenderViewHost* host) {
     64   host->GetMainFrame()->GetServiceRegistry()->AddService<KeyboardUIHandlerMojo>(
     65       base::Bind(&VKWebUIController::CreateAndStoreUIHandler,
     66                  weak_factory_.GetWeakPtr()));
     67 }
     68 
     69 void VKWebUIController::CreateAndStoreUIHandler(
     70     mojo::InterfaceRequest<KeyboardUIHandlerMojo> request) {
     71   ui_handler_ = scoped_ptr<VKMojoHandler>(
     72       mojo::WeakBindToRequest(new VKMojoHandler(), &request));
     73 }
     74 
     75 ////////////////////////////////////////////////////////////////////////////////
     76 // VKWebUIControllerFactory:
     77 
     78 content::WebUI::TypeID VKWebUIControllerFactory::GetWebUIType(
     79     content::BrowserContext* browser_context,
     80     const GURL& url) const {
     81   if (url == GURL(kKeyboardURL))
     82     return const_cast<VKWebUIControllerFactory*>(this);
     83 
     84   return content::WebUI::kNoWebUI;
     85 }
     86 
     87 bool VKWebUIControllerFactory::UseWebUIForURL(
     88     content::BrowserContext* browser_context,
     89     const GURL& url) const {
     90   return GetWebUIType(browser_context, url) != content::WebUI::kNoWebUI;
     91 }
     92 
     93 bool VKWebUIControllerFactory::UseWebUIBindingsForURL(
     94     content::BrowserContext* browser_context,
     95     const GURL& url) const {
     96   return UseWebUIForURL(browser_context, url);
     97 }
     98 
     99 content::WebUIController* VKWebUIControllerFactory::CreateWebUIControllerForURL(
    100     content::WebUI* web_ui,
    101     const GURL& url) const {
    102   if (url == GURL(kKeyboardURL))
    103     return new VKWebUIController(web_ui);
    104   return NULL;
    105 }
    106 
    107 // static
    108 VKWebUIControllerFactory* VKWebUIControllerFactory::GetInstance() {
    109   return Singleton<VKWebUIControllerFactory>::get();
    110 }
    111 
    112 // protected
    113 VKWebUIControllerFactory::VKWebUIControllerFactory() {
    114 }
    115 
    116 VKWebUIControllerFactory::~VKWebUIControllerFactory() {
    117 }
    118 
    119 }  // namespace keyboard
    120