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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/slideshow_ui.h" | |
| 6 | |
| 7 #include "base/callback.h" | |
| 8 #include "base/memory/singleton.h" | |
| 9 #include "base/memory/weak_ptr.h" | |
| 10 #include "base/message_loop.h" | |
| 11 #include "base/path_service.h" | |
| 12 #include "base/string_piece.h" | |
| 13 #include "base/string_util.h" | |
| 14 #include "base/threading/thread.h" | |
| 15 #include "base/time.h" | |
| 16 #include "base/utf_string_conversions.h" | |
| 17 #include "base/values.h" | |
| 18 #include "chrome/browser/history/history_types.h" | |
| 19 #include "chrome/browser/metrics/user_metrics.h" | |
| 20 #include "chrome/browser/profiles/profile.h" | |
| 21 #include "chrome/browser/ui/webui/favicon_source.h" | |
| 22 #include "chrome/common/chrome_paths.h" | |
| 23 #include "chrome/common/jstemplate_builder.h" | |
| 24 #include "chrome/common/url_constants.h" | |
| 25 #include "content/browser/browser_thread.h" | |
| 26 #include "content/browser/tab_contents/tab_contents.h" | |
| 27 #include "grit/browser_resources.h" | |
| 28 #include "grit/chromium_strings.h" | |
| 29 #include "grit/generated_resources.h" | |
| 30 #include "grit/locale_settings.h" | |
| 31 #include "net/base/directory_lister.h" | |
| 32 #include "net/base/escape.h" | |
| 33 #include "ui/base/resource/resource_bundle.h" | |
| 34 | |
| 35 static const char kPropertyPath[] = "path"; | |
| 36 static const char kPropertyTitle[] = "title"; | |
| 37 static const char kPropertyOffset[] = "currentOffset"; | |
| 38 static const char kPropertyDirectory[] = "isDirectory"; | |
| 39 | |
| 40 class SlideshowUIHTMLSource : public ChromeURLDataManager::DataSource { | |
| 41 public: | |
| 42 SlideshowUIHTMLSource(); | |
| 43 | |
| 44 // Called when the network layer has requested a resource underneath | |
| 45 // the path we registered. | |
| 46 virtual void StartDataRequest(const std::string& path, | |
| 47 bool is_incognito, | |
| 48 int request_id); | |
| 49 virtual std::string GetMimeType(const std::string&) const { | |
| 50 return "text/html"; | |
| 51 } | |
| 52 | |
| 53 private: | |
| 54 ~SlideshowUIHTMLSource() {} | |
| 55 | |
| 56 DISALLOW_COPY_AND_ASSIGN(SlideshowUIHTMLSource); | |
| 57 }; | |
| 58 | |
| 59 // The handler for Javascript messages related to the "slideshow" view. | |
| 60 class SlideshowHandler : public net::DirectoryLister::DirectoryListerDelegate, | |
| 61 public WebUIMessageHandler, | |
| 62 public base::SupportsWeakPtr<SlideshowHandler> { | |
| 63 public: | |
| 64 SlideshowHandler(); | |
| 65 virtual ~SlideshowHandler(); | |
| 66 | |
| 67 // Init work after Attach. | |
| 68 void Init(); | |
| 69 | |
| 70 // DirectoryLister::DirectoryListerDelegate methods: | |
| 71 virtual void OnListFile( | |
| 72 const net::DirectoryLister::DirectoryListerData& data); | |
| 73 virtual void OnListDone(int error); | |
| 74 | |
| 75 // WebUIMessageHandler implementation. | |
| 76 virtual WebUIMessageHandler* Attach(WebUI* web_ui); | |
| 77 virtual void RegisterMessages(); | |
| 78 | |
| 79 void GetChildrenForPath(const FilePath& path, bool is_refresh); | |
| 80 | |
| 81 // Callback for the "getChildren" message. | |
| 82 void HandleGetChildren(const ListValue* args); | |
| 83 | |
| 84 void HandleRefreshDirectory(const ListValue* args); | |
| 85 | |
| 86 private: | |
| 87 bool PathIsImageFile(const char* filename); | |
| 88 | |
| 89 scoped_ptr<ListValue> filelist_value_; | |
| 90 FilePath currentpath_; | |
| 91 FilePath originalpath_; | |
| 92 Profile* profile_; | |
| 93 int counter_; | |
| 94 int currentOffset_; | |
| 95 scoped_refptr<net::DirectoryLister> lister_; | |
| 96 bool is_refresh_; | |
| 97 | |
| 98 DISALLOW_COPY_AND_ASSIGN(SlideshowHandler); | |
| 99 }; | |
| 100 | |
| 101 //////////////////////////////////////////////////////////////////////////////// | |
| 102 // | |
| 103 // SlideshowHTMLSource | |
| 104 // | |
| 105 //////////////////////////////////////////////////////////////////////////////// | |
| 106 | |
| 107 SlideshowUIHTMLSource::SlideshowUIHTMLSource() | |
| 108 : DataSource(chrome::kChromeUISlideshowHost, MessageLoop::current()) { | |
| 109 } | |
| 110 | |
| 111 void SlideshowUIHTMLSource::StartDataRequest(const std::string& path, | |
| 112 bool is_incognito, | |
| 113 int request_id) { | |
| 114 DictionaryValue localized_strings; | |
| 115 // TODO(dhg): Add stirings to localized strings, also add more strings | |
| 116 // that are currently hardcoded. | |
| 117 SetFontAndTextDirection(&localized_strings); | |
| 118 | |
| 119 static const base::StringPiece slideshow_html( | |
| 120 ResourceBundle::GetSharedInstance().GetRawDataResource( | |
| 121 IDR_SLIDESHOW_HTML)); | |
| 122 const std::string full_html = jstemplate_builder::GetI18nTemplateHtml( | |
| 123 slideshow_html, &localized_strings); | |
| 124 | |
| 125 scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes); | |
| 126 html_bytes->data.resize(full_html.size()); | |
| 127 std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin()); | |
| 128 | |
| 129 SendResponse(request_id, html_bytes); | |
| 130 } | |
| 131 | |
| 132 //////////////////////////////////////////////////////////////////////////////// | |
| 133 // | |
| 134 // SlideshowHandler | |
| 135 // | |
| 136 //////////////////////////////////////////////////////////////////////////////// | |
| 137 SlideshowHandler::SlideshowHandler() | |
| 138 : profile_(NULL), | |
| 139 is_refresh_(false) { | |
| 140 lister_ = NULL; | |
| 141 } | |
| 142 | |
| 143 SlideshowHandler::~SlideshowHandler() { | |
| 144 if (lister_.get()) { | |
| 145 lister_->Cancel(); | |
| 146 lister_->set_delegate(NULL); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 WebUIMessageHandler* SlideshowHandler::Attach(WebUI* web_ui) { | |
| 151 profile_ = web_ui->GetProfile(); | |
| 152 // Create our favicon data source. | |
| 153 profile_->GetChromeURLDataManager()->AddDataSource( | |
| 154 new FaviconSource(profile_, FaviconSource::FAVICON)); | |
| 155 return WebUIMessageHandler::Attach(web_ui); | |
| 156 } | |
| 157 | |
| 158 void SlideshowHandler::Init() { | |
| 159 } | |
| 160 | |
| 161 void SlideshowHandler::RegisterMessages() { | |
| 162 web_ui_->RegisterMessageCallback("getChildren", | |
| 163 NewCallback(this, &SlideshowHandler::HandleGetChildren)); | |
| 164 web_ui_->RegisterMessageCallback("refreshDirectory", | |
| 165 NewCallback(this, &SlideshowHandler::HandleRefreshDirectory)); | |
| 166 } | |
| 167 | |
| 168 void SlideshowHandler::HandleRefreshDirectory(const ListValue* args) { | |
| 169 #if defined(OS_CHROMEOS) | |
| 170 std::string path = UTF16ToUTF8(ExtractStringValue(args)); | |
| 171 GetChildrenForPath(FilePath(path), true); | |
| 172 #endif | |
| 173 } | |
| 174 | |
| 175 void SlideshowHandler::GetChildrenForPath(const FilePath& path, | |
| 176 bool is_refresh) { | |
| 177 filelist_value_.reset(new ListValue()); | |
| 178 currentpath_ = path; | |
| 179 | |
| 180 if (lister_.get()) { | |
| 181 lister_->Cancel(); | |
| 182 lister_->set_delegate(NULL); | |
| 183 lister_ = NULL; | |
| 184 } | |
| 185 | |
| 186 is_refresh_ = is_refresh; | |
| 187 if (file_util::EnsureEndsWithSeparator(¤tpath_) && | |
| 188 currentpath_.IsAbsolute()) { | |
| 189 lister_ = new net::DirectoryLister(currentpath_, this); | |
| 190 } else { | |
| 191 originalpath_ = currentpath_; | |
| 192 currentpath_ = currentpath_.DirName(); | |
| 193 lister_ = new net::DirectoryLister(currentpath_, this); | |
| 194 } | |
| 195 counter_ = 0; | |
| 196 currentOffset_ = -1; | |
| 197 lister_->Start(); | |
| 198 } | |
| 199 | |
| 200 void SlideshowHandler::HandleGetChildren(const ListValue* args) { | |
| 201 #if defined(OS_CHROMEOS) | |
| 202 filelist_value_.reset(new ListValue()); | |
| 203 std::string path = UTF16ToUTF8(ExtractStringValue(args)); | |
| 204 GetChildrenForPath(FilePath(path), false); | |
| 205 #endif | |
| 206 } | |
| 207 | |
| 208 bool SlideshowHandler::PathIsImageFile(const char* filename) { | |
| 209 #if defined(OS_CHROMEOS) | |
| 210 FilePath file = FilePath(filename); | |
| 211 std::string ext = file.Extension(); | |
| 212 ext = StringToLowerASCII(ext); | |
| 213 if (ext == ".jpg" || | |
| 214 ext == ".jpeg" || | |
| 215 ext == ".png" || | |
| 216 ext == ".gif") { | |
| 217 return true; | |
| 218 } else { | |
| 219 return false; | |
| 220 } | |
| 221 #else | |
| 222 return false; | |
| 223 #endif | |
| 224 } | |
| 225 | |
| 226 void SlideshowHandler::OnListFile( | |
| 227 const net::DirectoryLister::DirectoryListerData& data) { | |
| 228 #if defined(OS_CHROMEOS) | |
| 229 if (data.info.filename[0] == '.') { | |
| 230 return; | |
| 231 } | |
| 232 if (!PathIsImageFile(data.info.filename.c_str())) { | |
| 233 return; | |
| 234 } | |
| 235 | |
| 236 DictionaryValue* file_value = new DictionaryValue(); | |
| 237 | |
| 238 file_value->SetString(kPropertyTitle, data.info.filename); | |
| 239 file_value->SetString(kPropertyPath, | |
| 240 currentpath_.Append(data.info.filename).value()); | |
| 241 file_value->SetBoolean(kPropertyDirectory, S_ISDIR(data.info.stat.st_mode)); | |
| 242 filelist_value_->Append(file_value); | |
| 243 std::string val; | |
| 244 file_value->GetString(kPropertyTitle, &val); | |
| 245 if (val == originalpath_.BaseName().value()) { | |
| 246 currentOffset_ = counter_; | |
| 247 } | |
| 248 counter_++; | |
| 249 #endif | |
| 250 } | |
| 251 | |
| 252 void SlideshowHandler::OnListDone(int error) { | |
| 253 DictionaryValue info_value; | |
| 254 counter_ = 0; | |
| 255 if (!(file_util::EnsureEndsWithSeparator(&originalpath_) && | |
| 256 originalpath_.IsAbsolute()) && | |
| 257 currentOffset_ != -1) { | |
| 258 info_value.SetInteger(kPropertyOffset, currentOffset_); | |
| 259 } | |
| 260 if (is_refresh_) { | |
| 261 info_value.SetString("functionCall", "refresh"); | |
| 262 } else { | |
| 263 info_value.SetString("functionCall", "getChildren"); | |
| 264 } | |
| 265 info_value.SetString(kPropertyPath, currentpath_.value()); | |
| 266 web_ui_->CallJavascriptFunction("browseFileResult", | |
| 267 info_value, *(filelist_value_.get())); | |
| 268 } | |
| 269 | |
| 270 //////////////////////////////////////////////////////////////////////////////// | |
| 271 // | |
| 272 // SlideshowUI | |
| 273 // | |
| 274 //////////////////////////////////////////////////////////////////////////////// | |
| 275 | |
| 276 SlideshowUI::SlideshowUI(TabContents* contents) : WebUI(contents) { | |
| 277 SlideshowHandler* handler = new SlideshowHandler(); | |
| 278 AddMessageHandler((handler)->Attach(this)); | |
| 279 handler->Init(); | |
| 280 SlideshowUIHTMLSource* html_source = new SlideshowUIHTMLSource(); | |
| 281 | |
| 282 // Set up the chrome://slideshow/ source. | |
| 283 contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source); | |
| 284 } | |
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Chromium Code Reviews
Issue 6873100:
Moving slideshow to the filebrowser. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/