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/tab_contents/core_tab_helper.h" 6 7 #include <string> 8 #include <vector> 9 10 #include "base/command_line.h" 11 #include "base/metrics/histogram.h" 12 #include "base/strings/stringprintf.h" 13 #include "chrome/browser/profiles/profile.h" 14 #include "chrome/browser/renderer_host/web_cache_manager.h" 15 #include "chrome/browser/search_engines/search_terms_data.h" 16 #include "chrome/browser/search_engines/template_url.h" 17 #include "chrome/browser/search_engines/template_url_service.h" 18 #include "chrome/browser/search_engines/template_url_service_factory.h" 19 #include "chrome/browser/ui/browser.h" 20 #include "chrome/browser/ui/browser_command_controller.h" 21 #include "chrome/browser/ui/browser_finder.h" 22 #include "chrome/common/chrome_switches.h" 23 #include "chrome/common/render_messages.h" 24 #include "content/public/browser/render_process_host.h" 25 #include "content/public/browser/render_view_host.h" 26 #include "content/public/browser/web_contents.h" 27 #include "grit/generated_resources.h" 28 #include "net/base/load_states.h" 29 #include "net/http/http_request_headers.h" 30 #include "third_party/skia/include/core/SkBitmap.h" 31 #include "ui/base/l10n/l10n_util.h" 32 #include "ui/gfx/codec/jpeg_codec.h" 33 34 using content::WebContents; 35 36 DEFINE_WEB_CONTENTS_USER_DATA_KEY(CoreTabHelper); 37 38 CoreTabHelper::CoreTabHelper(WebContents* web_contents) 39 : content::WebContentsObserver(web_contents), 40 delegate_(NULL), 41 content_restrictions_(0) { 42 } 43 44 CoreTabHelper::~CoreTabHelper() { 45 } 46 47 base::string16 CoreTabHelper::GetDefaultTitle() { 48 return l10n_util::GetStringUTF16(IDS_DEFAULT_TAB_TITLE); 49 } 50 51 base::string16 CoreTabHelper::GetStatusText() const { 52 if (!web_contents()->IsLoading() || 53 web_contents()->GetLoadState().state == net::LOAD_STATE_IDLE) { 54 return base::string16(); 55 } 56 57 switch (web_contents()->GetLoadState().state) { 58 case net::LOAD_STATE_WAITING_FOR_STALLED_SOCKET_POOL: 59 case net::LOAD_STATE_WAITING_FOR_AVAILABLE_SOCKET: 60 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_WAITING_FOR_SOCKET_SLOT); 61 case net::LOAD_STATE_WAITING_FOR_DELEGATE: 62 if (!web_contents()->GetLoadState().param.empty()) { 63 return l10n_util::GetStringFUTF16(IDS_LOAD_STATE_WAITING_FOR_DELEGATE, 64 web_contents()->GetLoadState().param); 65 } else { 66 return l10n_util::GetStringUTF16( 67 IDS_LOAD_STATE_WAITING_FOR_DELEGATE_GENERIC); 68 } 69 case net::LOAD_STATE_WAITING_FOR_CACHE: 70 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_WAITING_FOR_CACHE); 71 case net::LOAD_STATE_WAITING_FOR_APPCACHE: 72 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_WAITING_FOR_APPCACHE); 73 case net::LOAD_STATE_ESTABLISHING_PROXY_TUNNEL: 74 return 75 l10n_util::GetStringUTF16(IDS_LOAD_STATE_ESTABLISHING_PROXY_TUNNEL); 76 case net::LOAD_STATE_DOWNLOADING_PROXY_SCRIPT: 77 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_DOWNLOADING_PROXY_SCRIPT); 78 case net::LOAD_STATE_RESOLVING_PROXY_FOR_URL: 79 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_RESOLVING_PROXY_FOR_URL); 80 case net::LOAD_STATE_RESOLVING_HOST_IN_PROXY_SCRIPT: 81 return l10n_util::GetStringUTF16( 82 IDS_LOAD_STATE_RESOLVING_HOST_IN_PROXY_SCRIPT); 83 case net::LOAD_STATE_RESOLVING_HOST: 84 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_RESOLVING_HOST); 85 case net::LOAD_STATE_CONNECTING: 86 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_CONNECTING); 87 case net::LOAD_STATE_SSL_HANDSHAKE: 88 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_SSL_HANDSHAKE); 89 case net::LOAD_STATE_SENDING_REQUEST: 90 if (web_contents()->GetUploadSize()) { 91 return l10n_util::GetStringFUTF16Int( 92 IDS_LOAD_STATE_SENDING_REQUEST_WITH_PROGRESS, 93 static_cast<int>((100 * web_contents()->GetUploadPosition()) / 94 web_contents()->GetUploadSize())); 95 } else { 96 return l10n_util::GetStringUTF16(IDS_LOAD_STATE_SENDING_REQUEST); 97 } 98 case net::LOAD_STATE_WAITING_FOR_RESPONSE: 99 return l10n_util::GetStringFUTF16(IDS_LOAD_STATE_WAITING_FOR_RESPONSE, 100 web_contents()->GetLoadStateHost()); 101 // Ignore net::LOAD_STATE_READING_RESPONSE and net::LOAD_STATE_IDLE 102 case net::LOAD_STATE_IDLE: 103 case net::LOAD_STATE_READING_RESPONSE: 104 break; 105 } 106 107 return base::string16(); 108 } 109 110 void CoreTabHelper::OnCloseStarted() { 111 if (close_start_time_.is_null()) 112 close_start_time_ = base::TimeTicks::Now(); 113 } 114 115 void CoreTabHelper::OnCloseCanceled() { 116 close_start_time_ = base::TimeTicks(); 117 before_unload_end_time_ = base::TimeTicks(); 118 unload_detached_start_time_ = base::TimeTicks(); 119 } 120 121 void CoreTabHelper::OnUnloadStarted() { 122 before_unload_end_time_ = base::TimeTicks::Now(); 123 } 124 125 void CoreTabHelper::OnUnloadDetachedStarted() { 126 if (unload_detached_start_time_.is_null()) 127 unload_detached_start_time_ = base::TimeTicks::Now(); 128 } 129 130 void CoreTabHelper::UpdateContentRestrictions(int content_restrictions) { 131 content_restrictions_ = content_restrictions; 132 #if !defined(OS_ANDROID) 133 Browser* browser = chrome::FindBrowserWithWebContents(web_contents()); 134 if (!browser) 135 return; 136 137 browser->command_controller()->ContentRestrictionsChanged(); 138 #endif 139 } 140 141 //////////////////////////////////////////////////////////////////////////////// 142 // WebContentsObserver overrides 143 144 void CoreTabHelper::DidStartLoading(content::RenderViewHost* render_view_host) { 145 UpdateContentRestrictions(0); 146 } 147 148 void CoreTabHelper::WasShown() { 149 WebCacheManager::GetInstance()->ObserveActivity( 150 web_contents()->GetRenderProcessHost()->GetID()); 151 } 152 153 void CoreTabHelper::WebContentsDestroyed(WebContents* web_contents) { 154 // OnCloseStarted isn't called in unit tests. 155 if (!close_start_time_.is_null()) { 156 bool fast_tab_close_enabled = CommandLine::ForCurrentProcess()->HasSwitch( 157 switches::kEnableFastUnload); 158 159 if (fast_tab_close_enabled) { 160 base::TimeTicks now = base::TimeTicks::Now(); 161 base::TimeDelta close_time = now - close_start_time_; 162 UMA_HISTOGRAM_TIMES("Tab.Close", close_time); 163 164 base::TimeTicks unload_start_time = close_start_time_; 165 base::TimeTicks unload_end_time = now; 166 if (!before_unload_end_time_.is_null()) 167 unload_start_time = before_unload_end_time_; 168 if (!unload_detached_start_time_.is_null()) 169 unload_end_time = unload_detached_start_time_; 170 base::TimeDelta unload_time = unload_end_time - unload_start_time; 171 UMA_HISTOGRAM_TIMES("Tab.Close.UnloadTime", unload_time); 172 } else { 173 base::TimeTicks now = base::TimeTicks::Now(); 174 base::TimeTicks unload_start_time = close_start_time_; 175 if (!before_unload_end_time_.is_null()) 176 unload_start_time = before_unload_end_time_; 177 UMA_HISTOGRAM_TIMES("Tab.Close", now - close_start_time_); 178 UMA_HISTOGRAM_TIMES("Tab.Close.UnloadTime", now - unload_start_time); 179 } 180 } 181 } 182 183 void CoreTabHelper::BeforeUnloadFired(const base::TimeTicks& proceed_time) { 184 before_unload_end_time_ = proceed_time; 185 } 186 187 void CoreTabHelper::BeforeUnloadDialogCancelled() { 188 OnCloseCanceled(); 189 } 190 191 bool CoreTabHelper::OnMessageReceived(const IPC::Message& message) { 192 bool handled = true; 193 IPC_BEGIN_MESSAGE_MAP(CoreTabHelper, message) 194 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RequestThumbnailForContextNode_ACK, 195 OnRequestThumbnailForContextNodeACK) 196 IPC_MESSAGE_UNHANDLED(handled = false) 197 IPC_END_MESSAGE_MAP() 198 return handled; 199 } 200 201 // Handles the image thumbnail for the context node, composes a image search 202 // request based on the received thumbnail and opens the request in a new tab. 203 void CoreTabHelper::OnRequestThumbnailForContextNodeACK( 204 const SkBitmap& bitmap, 205 const gfx::Size& original_size) { 206 if (bitmap.isNull()) 207 return; 208 Profile* profile = 209 Profile::FromBrowserContext(web_contents()->GetBrowserContext()); 210 211 TemplateURLService* template_url_service = 212 TemplateURLServiceFactory::GetForProfile(profile); 213 if (!template_url_service) 214 return; 215 const TemplateURL* const default_provider = 216 template_url_service->GetDefaultSearchProvider(); 217 if (!default_provider) 218 return; 219 220 const int kDefaultQualityForImageSearch = 90; 221 std::vector<unsigned char> data; 222 if (!gfx::JPEGCodec::Encode( 223 reinterpret_cast<unsigned char*>(bitmap.getAddr32(0, 0)), 224 gfx::JPEGCodec::FORMAT_SkBitmap, bitmap.width(), bitmap.height(), 225 static_cast<int>(bitmap.rowBytes()), kDefaultQualityForImageSearch, 226 &data)) 227 return; 228 229 TemplateURLRef::SearchTermsArgs search_args = 230 TemplateURLRef::SearchTermsArgs(base::string16()); 231 search_args.image_thumbnail_content = std::string(data.begin(), data.end()); 232 // TODO(jnd): Add a method in WebContentsViewDelegate to get the image URL 233 // from the ContextMenuParams which creates current context menu. 234 search_args.image_url = GURL(); 235 search_args.image_original_size = original_size; 236 TemplateURLRef::PostContent post_content; 237 GURL result(default_provider->image_url_ref().ReplaceSearchTerms( 238 search_args, &post_content)); 239 if (!result.is_valid()) 240 return; 241 242 content::OpenURLParams open_url_params( 243 result, content::Referrer(), NEW_FOREGROUND_TAB, 244 content::PAGE_TRANSITION_LINK, false); 245 const std::string& content_type = post_content.first; 246 std::string* post_data = &post_content.second; 247 if (!post_data->empty()) { 248 DCHECK(!content_type.empty()); 249 open_url_params.uses_post = true; 250 open_url_params.browser_initiated_post_data = 251 base::RefCountedString::TakeString(post_data); 252 open_url_params.extra_headers += base::StringPrintf( 253 "%s: %s\r\n", net::HttpRequestHeaders::kContentType, 254 content_type.c_str()); 255 } 256 web_contents()->OpenURL(open_url_params); 257 } 258
