1// Copyright (c) 2012 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/downloads_ui.h"
6
7#include "base/memory/ref_counted_memory.h"
8#include "base/memory/singleton.h"
9#include "base/prefs/pref_service.h"
10#include "base/strings/string_piece.h"
11#include "base/threading/thread.h"
12#include "base/values.h"
13#include "chrome/browser/defaults.h"
14#include "chrome/browser/download/download_service.h"
15#include "chrome/browser/download/download_service_factory.h"
16#include "chrome/browser/profiles/profile.h"
17#include "chrome/browser/ui/webui/downloads_dom_handler.h"
18#include "chrome/browser/ui/webui/theme_source.h"
19#include "chrome/common/pref_names.h"
20#include "chrome/common/url_constants.h"
21#include "chrome/grit/chromium_strings.h"
22#include "chrome/grit/generated_resources.h"
23#include "content/public/browser/download_manager.h"
24#include "content/public/browser/url_data_source.h"
25#include "content/public/browser/web_contents.h"
26#include "content/public/browser/web_ui.h"
27#include "content/public/browser/web_ui_data_source.h"
28#include "grit/browser_resources.h"
29#include "grit/theme_resources.h"
30#include "ui/base/resource/resource_bundle.h"
31
32using content::BrowserContext;
33using content::DownloadManager;
34using content::WebContents;
35
36namespace {
37
38content::WebUIDataSource* CreateDownloadsUIHTMLSource(Profile* profile) {
39  content::WebUIDataSource* source =
40      content::WebUIDataSource::Create(chrome::kChromeUIDownloadsHost);
41
42  source->AddLocalizedString("title", IDS_DOWNLOAD_TITLE);
43  source->AddLocalizedString("searchbutton", IDS_DOWNLOAD_SEARCH_BUTTON);
44  source->AddLocalizedString("searchresultsfor", IDS_DOWNLOAD_SEARCHRESULTSFOR);
45  source->AddLocalizedString("downloads", IDS_DOWNLOAD_TITLE);
46  source->AddLocalizedString("clear_all", IDS_DOWNLOAD_LINK_CLEAR_ALL);
47  source->AddLocalizedString("open_downloads_folder",
48                             IDS_DOWNLOAD_LINK_OPEN_DOWNLOADS_FOLDER);
49
50  // Status.
51  source->AddLocalizedString("status_cancelled", IDS_DOWNLOAD_TAB_CANCELLED);
52  source->AddLocalizedString("status_removed", IDS_DOWNLOAD_FILE_REMOVED);
53  source->AddLocalizedString("status_paused", IDS_DOWNLOAD_PROGRESS_PAUSED);
54
55  // Dangerous file.
56  source->AddLocalizedString("danger_file_desc", IDS_PROMPT_DANGEROUS_DOWNLOAD);
57  source->AddLocalizedString("danger_url_desc",
58                             IDS_PROMPT_MALICIOUS_DOWNLOAD_URL);
59  source->AddLocalizedString("danger_content_desc",
60                             IDS_PROMPT_MALICIOUS_DOWNLOAD_CONTENT);
61  source->AddLocalizedString("danger_uncommon_desc",
62                             IDS_PROMPT_UNCOMMON_DOWNLOAD_CONTENT);
63  source->AddLocalizedString("danger_settings_desc",
64                             IDS_PROMPT_DOWNLOAD_CHANGES_SETTINGS);
65  source->AddLocalizedString("danger_save", IDS_CONFIRM_DOWNLOAD);
66  source->AddLocalizedString("danger_restore", IDS_CONFIRM_DOWNLOAD_RESTORE);
67  source->AddLocalizedString("danger_discard", IDS_DISCARD_DOWNLOAD);
68
69  // Controls.
70  source->AddLocalizedString("control_pause", IDS_DOWNLOAD_LINK_PAUSE);
71  if (browser_defaults::kDownloadPageHasShowInFolder) {
72    source->AddLocalizedString("control_showinfolder", IDS_DOWNLOAD_LINK_SHOW);
73  }
74  source->AddLocalizedString("control_retry", IDS_DOWNLOAD_LINK_RETRY);
75  source->AddLocalizedString("control_cancel", IDS_DOWNLOAD_LINK_CANCEL);
76  source->AddLocalizedString("control_resume", IDS_DOWNLOAD_LINK_RESUME);
77  source->AddLocalizedString("control_removefromlist",
78                             IDS_DOWNLOAD_LINK_REMOVE);
79  source->AddLocalizedString("control_by_extension",
80                             IDS_DOWNLOAD_BY_EXTENSION);
81
82  PrefService* prefs = profile->GetPrefs();
83  source->AddBoolean("allow_deleting_history",
84                     prefs->GetBoolean(prefs::kAllowDeletingBrowserHistory));
85  source->AddBoolean("show_delete_history", !profile->IsSupervised());
86
87  source->SetJsonPath("strings.js");
88  source->AddResourcePath("downloads.css", IDR_DOWNLOADS_CSS);
89  source->AddResourcePath("downloads.js", IDR_DOWNLOADS_JS);
90  source->SetDefaultResource(IDR_DOWNLOADS_HTML);
91  source->SetUseJsonJSFormatV2();
92
93  return source;
94}
95
96}  // namespace
97
98///////////////////////////////////////////////////////////////////////////////
99//
100// DownloadsUI
101//
102///////////////////////////////////////////////////////////////////////////////
103
104DownloadsUI::DownloadsUI(content::WebUI* web_ui) : WebUIController(web_ui) {
105  Profile* profile = Profile::FromWebUI(web_ui);
106  DownloadManager* dlm = BrowserContext::GetDownloadManager(profile);
107
108  DownloadsDOMHandler* handler = new DownloadsDOMHandler(dlm);
109  web_ui->AddMessageHandler(handler);
110
111  // Set up the chrome://downloads/ source.
112  content::WebUIDataSource* source = CreateDownloadsUIHTMLSource(profile);
113  content::WebUIDataSource::Add(profile, source);
114#if defined(ENABLE_THEMES)
115  ThemeSource* theme = new ThemeSource(profile);
116  content::URLDataSource::Add(profile, theme);
117#endif
118}
119
120// static
121base::RefCountedMemory* DownloadsUI::GetFaviconResourceBytes(
122      ui::ScaleFactor scale_factor) {
123  return ResourceBundle::GetSharedInstance().
124      LoadDataResourceBytesForScale(IDR_DOWNLOADS_FAVICON, scale_factor);
125}
126