start_page_handler.cc revision 1e9bf3e0803691d0a228da41fc608347b6db4340
1// Copyright 2013 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/app_list/start_page_handler.h"
6
7#include <string>
8
9#include "base/bind.h"
10#include "base/memory/scoped_ptr.h"
11#include "base/values.h"
12#include "chrome/browser/extensions/extension_service.h"
13#include "chrome/browser/extensions/extension_system.h"
14#include "chrome/browser/profiles/profile.h"
15#include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
16#include "chrome/browser/ui/app_list/app_list_service.h"
17#include "chrome/browser/ui/app_list/recommended_apps.h"
18#include "chrome/browser/ui/app_list/start_page_service.h"
19#include "chrome/browser/ui/host_desktop.h"
20#include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
21#include "chrome/common/extensions/extension.h"
22#include "chrome/common/extensions/extension_icon_set.h"
23#include "content/public/browser/web_contents_view.h"
24#include "content/public/browser/web_ui.h"
25#include "ui/events/event_constants.h"
26
27namespace app_list {
28
29namespace {
30
31scoped_ptr<base::DictionaryValue> CreateAppInfo(
32    const extensions::Extension* app) {
33  scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
34  dict->SetString("appId", app->id());
35  dict->SetString("textTitle", app->short_name());
36  dict->SetString("title", app->name());
37
38  const bool grayscale = false;
39  bool icon_exists = true;
40  GURL icon_url = extensions::ExtensionIconSource::GetIconURL(
41      app,
42      extension_misc::EXTENSION_ICON_MEDIUM,
43      ExtensionIconSet::MATCH_BIGGER,
44      grayscale,
45      &icon_exists);
46  dict->SetString("iconUrl", icon_url.spec());
47
48  return dict.Pass();
49}
50
51}  // namespace
52
53StartPageHandler::StartPageHandler() : recommended_apps_(NULL) {}
54
55StartPageHandler::~StartPageHandler() {
56  if (recommended_apps_)
57    recommended_apps_->RemoveObserver(this);
58}
59
60void StartPageHandler::RegisterMessages() {
61  web_ui()->RegisterMessageCallback(
62      "initialize",
63      base::Bind(&StartPageHandler::HandleInitialize, base::Unretained(this)));
64  web_ui()->RegisterMessageCallback(
65      "launchApp",
66      base::Bind(&StartPageHandler::HandleLaunchApp, base::Unretained(this)));
67}
68
69void StartPageHandler::OnRecommendedAppsChanged() {
70  SendRecommendedApps();
71}
72
73void StartPageHandler::SendRecommendedApps() {
74  const RecommendedApps::Apps& recommends = recommended_apps_->apps();
75
76  base::ListValue recommended_list;
77  for (size_t i = 0; i < recommends.size(); ++i) {
78    recommended_list.Append(CreateAppInfo(recommends[i].get()).release());
79  }
80
81  web_ui()->CallJavascriptFunction("appList.startPage.setRecommendedApps",
82                                   recommended_list);
83}
84
85void StartPageHandler::HandleInitialize(const base::ListValue* args) {
86  Profile* profile = Profile::FromWebUI(web_ui());
87  StartPageService* service = StartPageService::Get(profile);
88  if (!service)
89    return;
90
91  recommended_apps_ = service->recommended_apps();
92  recommended_apps_->AddObserver(this);
93
94  SendRecommendedApps();
95}
96
97void StartPageHandler::HandleLaunchApp(const base::ListValue* args) {
98  std::string app_id;
99  CHECK(args->GetString(0, &app_id));
100
101  Profile* profile = Profile::FromWebUI(web_ui());
102  ExtensionService* service =
103      extensions::ExtensionSystem::Get(profile)->extension_service();
104  const extensions::Extension* app = service->GetInstalledExtension(app_id);
105  if (!app) {
106    NOTREACHED();
107    return;
108  }
109
110  AppListService* app_list_service = AppListService::Get(
111      chrome::GetHostDesktopTypeForNativeView(
112          web_ui()->GetWebContents()->GetView()->GetNativeView()));
113  scoped_ptr<AppListControllerDelegate> controller(
114      app_list_service->CreateControllerDelegate());
115  controller->ActivateApp(profile,
116                          app,
117                          AppListControllerDelegate::LAUNCH_FROM_APP_LIST,
118                          ui::EF_NONE);
119}
120
121}  // namespace app_list
122