Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 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 "content/browser/web_contents/navigation_controller_impl.h" |
| 6 | |
| 7 | #include "base/bind.h" |
Torne (Richard Coles) | 7d4cd47 | 2013-06-19 11:58:07 +0100 | [diff] [blame] | 8 | #include "base/debug/trace_event.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 9 | #include "base/logging.h" |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 10 | #include "base/strings/string_number_conversions.h" // Temporary |
| 11 | #include "base/strings/string_util.h" |
| 12 | #include "base/strings/utf_string_conversions.h" |
Ben Murdoch | eb525c5 | 2013-07-10 11:40:50 +0100 | [diff] [blame] | 13 | #include "base/time/time.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 14 | #include "content/browser/browser_url_handler_impl.h" |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 15 | #include "content/browser/dom_storage/dom_storage_context_wrapper.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 16 | #include "content/browser/dom_storage/session_storage_namespace_impl.h" |
| 17 | #include "content/browser/renderer_host/render_view_host_impl.h" // Temporary |
| 18 | #include "content/browser/site_instance_impl.h" |
| 19 | #include "content/browser/web_contents/debug_urls.h" |
| 20 | #include "content/browser/web_contents/interstitial_page_impl.h" |
| 21 | #include "content/browser/web_contents/navigation_entry_impl.h" |
| 22 | #include "content/browser/web_contents/web_contents_impl.h" |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 23 | #include "content/browser/web_contents/web_contents_screenshot_manager.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 24 | #include "content/common/view_messages.h" |
| 25 | #include "content/public/browser/browser_context.h" |
| 26 | #include "content/public/browser/content_browser_client.h" |
| 27 | #include "content/public/browser/invalidate_type.h" |
| 28 | #include "content/public/browser/navigation_details.h" |
| 29 | #include "content/public/browser/notification_service.h" |
| 30 | #include "content/public/browser/notification_types.h" |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 31 | #include "content/public/browser/render_widget_host.h" |
| 32 | #include "content/public/browser/render_widget_host_view.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 33 | #include "content/public/browser/storage_partition.h" |
| 34 | #include "content/public/browser/user_metrics.h" |
| 35 | #include "content/public/browser/web_contents_delegate.h" |
| 36 | #include "content/public/common/content_client.h" |
| 37 | #include "content/public/common/content_constants.h" |
| 38 | #include "content/public/common/url_constants.h" |
| 39 | #include "net/base/escape.h" |
| 40 | #include "net/base/mime_util.h" |
| 41 | #include "net/base/net_util.h" |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 42 | #include "skia/ext/platform_canvas.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 43 | |
| 44 | namespace content { |
| 45 | namespace { |
| 46 | |
| 47 | const int kInvalidateAll = 0xFFFFFFFF; |
| 48 | |
| 49 | // Invoked when entries have been pruned, or removed. For example, if the |
| 50 | // current entries are [google, digg, yahoo], with the current entry google, |
| 51 | // and the user types in cnet, then digg and yahoo are pruned. |
| 52 | void NotifyPrunedEntries(NavigationControllerImpl* nav_controller, |
| 53 | bool from_front, |
| 54 | int count) { |
| 55 | PrunedDetails details; |
| 56 | details.from_front = from_front; |
| 57 | details.count = count; |
| 58 | NotificationService::current()->Notify( |
| 59 | NOTIFICATION_NAV_LIST_PRUNED, |
| 60 | Source<NavigationController>(nav_controller), |
| 61 | Details<PrunedDetails>(&details)); |
| 62 | } |
| 63 | |
| 64 | // Ensure the given NavigationEntry has a valid state, so that WebKit does not |
| 65 | // get confused if we navigate back to it. |
| 66 | // |
| 67 | // An empty state is treated as a new navigation by WebKit, which would mean |
| 68 | // losing the navigation entries and generating a new navigation entry after |
| 69 | // this one. We don't want that. To avoid this we create a valid state which |
| 70 | // WebKit will not treat as a new navigation. |
Torne (Richard Coles) | 90dce4d | 2013-05-29 14:40:03 +0100 | [diff] [blame] | 71 | void SetPageStateIfEmpty(NavigationEntryImpl* entry) { |
| 72 | if (!entry->GetPageState().IsValid()) |
| 73 | entry->SetPageState(PageState::CreateFromURL(entry->GetURL())); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType( |
| 77 | NavigationController::RestoreType type) { |
| 78 | switch (type) { |
| 79 | case NavigationController::RESTORE_CURRENT_SESSION: |
| 80 | return NavigationEntryImpl::RESTORE_CURRENT_SESSION; |
| 81 | case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY: |
| 82 | return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY; |
| 83 | case NavigationController::RESTORE_LAST_SESSION_CRASHED: |
| 84 | return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED; |
| 85 | } |
| 86 | NOTREACHED(); |
| 87 | return NavigationEntryImpl::RESTORE_CURRENT_SESSION; |
| 88 | } |
| 89 | |
| 90 | // Configure all the NavigationEntries in entries for restore. This resets |
| 91 | // the transition type to reload and makes sure the content state isn't empty. |
| 92 | void ConfigureEntriesForRestore( |
| 93 | std::vector<linked_ptr<NavigationEntryImpl> >* entries, |
| 94 | NavigationController::RestoreType type) { |
| 95 | for (size_t i = 0; i < entries->size(); ++i) { |
| 96 | // Use a transition type of reload so that we don't incorrectly increase |
| 97 | // the typed count. |
| 98 | (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD); |
| 99 | (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type)); |
| 100 | // NOTE(darin): This code is only needed for backwards compat. |
Torne (Richard Coles) | 90dce4d | 2013-05-29 14:40:03 +0100 | [diff] [blame] | 101 | SetPageStateIfEmpty((*entries)[i].get()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 102 | } |
| 103 | } |
| 104 | |
| 105 | // See NavigationController::IsURLInPageNavigation for how this works and why. |
| 106 | bool AreURLsInPageNavigation(const GURL& existing_url, |
| 107 | const GURL& new_url, |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 108 | bool renderer_says_in_page, |
| 109 | NavigationType navigation_type) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 110 | if (existing_url == new_url) |
| 111 | return renderer_says_in_page; |
| 112 | |
| 113 | if (!new_url.has_ref()) { |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 114 | // When going back from the ref URL to the non ref one the navigation type |
| 115 | // is IN_PAGE. |
| 116 | return navigation_type == NAVIGATION_TYPE_IN_PAGE; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | url_canon::Replacements<char> replacements; |
| 120 | replacements.ClearRef(); |
| 121 | return existing_url.ReplaceComponents(replacements) == |
| 122 | new_url.ReplaceComponents(replacements); |
| 123 | } |
| 124 | |
| 125 | // Determines whether or not we should be carrying over a user agent override |
| 126 | // between two NavigationEntries. |
| 127 | bool ShouldKeepOverride(const NavigationEntry* last_entry) { |
| 128 | return last_entry && last_entry->GetIsOverridingUserAgent(); |
| 129 | } |
| 130 | |
| 131 | } // namespace |
| 132 | |
| 133 | // NavigationControllerImpl ---------------------------------------------------- |
| 134 | |
| 135 | const size_t kMaxEntryCountForTestingNotSet = -1; |
| 136 | |
| 137 | // static |
| 138 | size_t NavigationControllerImpl::max_entry_count_for_testing_ = |
| 139 | kMaxEntryCountForTestingNotSet; |
| 140 | |
Torne (Richard Coles) | a93a17c | 2013-05-15 11:34:50 +0100 | [diff] [blame] | 141 | // Should Reload check for post data? The default is true, but is set to false |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 142 | // when testing. |
| 143 | static bool g_check_for_repost = true; |
| 144 | |
| 145 | // static |
| 146 | NavigationEntry* NavigationController::CreateNavigationEntry( |
| 147 | const GURL& url, |
| 148 | const Referrer& referrer, |
| 149 | PageTransition transition, |
| 150 | bool is_renderer_initiated, |
| 151 | const std::string& extra_headers, |
| 152 | BrowserContext* browser_context) { |
| 153 | // Allow the browser URL handler to rewrite the URL. This will, for example, |
| 154 | // remove "view-source:" from the beginning of the URL to get the URL that |
| 155 | // will actually be loaded. This real URL won't be shown to the user, just |
| 156 | // used internally. |
| 157 | GURL loaded_url(url); |
| 158 | bool reverse_on_redirect = false; |
| 159 | BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary( |
| 160 | &loaded_url, browser_context, &reverse_on_redirect); |
| 161 | |
| 162 | NavigationEntryImpl* entry = new NavigationEntryImpl( |
| 163 | NULL, // The site instance for tabs is sent on navigation |
| 164 | // (WebContents::GetSiteInstance). |
| 165 | -1, |
| 166 | loaded_url, |
| 167 | referrer, |
| 168 | string16(), |
| 169 | transition, |
| 170 | is_renderer_initiated); |
| 171 | entry->SetVirtualURL(url); |
| 172 | entry->set_user_typed_url(url); |
| 173 | entry->set_update_virtual_url_with_url(reverse_on_redirect); |
| 174 | entry->set_extra_headers(extra_headers); |
| 175 | return entry; |
| 176 | } |
| 177 | |
| 178 | // static |
| 179 | void NavigationController::DisablePromptOnRepost() { |
| 180 | g_check_for_repost = false; |
| 181 | } |
| 182 | |
| 183 | base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime( |
| 184 | base::Time t) { |
| 185 | // If |t| is between the water marks, we're in a run of duplicates |
| 186 | // or just getting out of it, so increase the high-water mark to get |
| 187 | // a time that probably hasn't been used before and return it. |
| 188 | if (low_water_mark_ <= t && t <= high_water_mark_) { |
| 189 | high_water_mark_ += base::TimeDelta::FromMicroseconds(1); |
| 190 | return high_water_mark_; |
| 191 | } |
| 192 | |
| 193 | // Otherwise, we're clear of the last duplicate run, so reset the |
| 194 | // water marks. |
| 195 | low_water_mark_ = high_water_mark_ = t; |
| 196 | return t; |
| 197 | } |
| 198 | |
| 199 | NavigationControllerImpl::NavigationControllerImpl( |
| 200 | WebContentsImpl* web_contents, |
| 201 | BrowserContext* browser_context) |
| 202 | : browser_context_(browser_context), |
| 203 | pending_entry_(NULL), |
| 204 | last_committed_entry_index_(-1), |
| 205 | pending_entry_index_(-1), |
| 206 | transient_entry_index_(-1), |
| 207 | web_contents_(web_contents), |
| 208 | max_restored_page_id_(-1), |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 209 | ssl_manager_(this), |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 210 | needs_reload_(false), |
| 211 | is_initial_navigation_(true), |
| 212 | pending_reload_(NO_RELOAD), |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 213 | get_timestamp_callback_(base::Bind(&base::Time::Now)), |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 214 | screenshot_manager_(new WebContentsScreenshotManager(this)) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 215 | DCHECK(browser_context_); |
| 216 | } |
| 217 | |
| 218 | NavigationControllerImpl::~NavigationControllerImpl() { |
| 219 | DiscardNonCommittedEntriesInternal(); |
| 220 | } |
| 221 | |
| 222 | WebContents* NavigationControllerImpl::GetWebContents() const { |
| 223 | return web_contents_; |
| 224 | } |
| 225 | |
| 226 | BrowserContext* NavigationControllerImpl::GetBrowserContext() const { |
| 227 | return browser_context_; |
| 228 | } |
| 229 | |
| 230 | void NavigationControllerImpl::SetBrowserContext( |
| 231 | BrowserContext* browser_context) { |
| 232 | browser_context_ = browser_context; |
| 233 | } |
| 234 | |
| 235 | void NavigationControllerImpl::Restore( |
| 236 | int selected_navigation, |
| 237 | RestoreType type, |
| 238 | std::vector<NavigationEntry*>* entries) { |
| 239 | // Verify that this controller is unused and that the input is valid. |
| 240 | DCHECK(GetEntryCount() == 0 && !GetPendingEntry()); |
| 241 | DCHECK(selected_navigation >= 0 && |
| 242 | selected_navigation < static_cast<int>(entries->size())); |
| 243 | |
| 244 | needs_reload_ = true; |
| 245 | for (size_t i = 0; i < entries->size(); ++i) { |
| 246 | NavigationEntryImpl* entry = |
| 247 | NavigationEntryImpl::FromNavigationEntry((*entries)[i]); |
| 248 | entries_.push_back(linked_ptr<NavigationEntryImpl>(entry)); |
| 249 | } |
| 250 | entries->clear(); |
| 251 | |
| 252 | // And finish the restore. |
| 253 | FinishRestore(selected_navigation, type); |
| 254 | } |
| 255 | |
| 256 | void NavigationControllerImpl::Reload(bool check_for_repost) { |
| 257 | ReloadInternal(check_for_repost, RELOAD); |
| 258 | } |
| 259 | void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) { |
| 260 | ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE); |
| 261 | } |
| 262 | void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) { |
| 263 | ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL); |
| 264 | } |
| 265 | |
| 266 | void NavigationControllerImpl::ReloadInternal(bool check_for_repost, |
| 267 | ReloadType reload_type) { |
| 268 | if (transient_entry_index_ != -1) { |
| 269 | // If an interstitial is showing, treat a reload as a navigation to the |
| 270 | // transient entry's URL. |
| 271 | NavigationEntryImpl* active_entry = |
| 272 | NavigationEntryImpl::FromNavigationEntry(GetActiveEntry()); |
| 273 | if (!active_entry) |
| 274 | return; |
| 275 | LoadURL(active_entry->GetURL(), |
| 276 | Referrer(), |
| 277 | PAGE_TRANSITION_RELOAD, |
| 278 | active_entry->extra_headers()); |
| 279 | return; |
| 280 | } |
| 281 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 282 | NavigationEntryImpl* entry = NULL; |
| 283 | int current_index = -1; |
| 284 | |
| 285 | // If we are reloading the initial navigation, just use the current |
| 286 | // pending entry. Otherwise look up the current entry. |
| 287 | if (IsInitialNavigation() && pending_entry_) { |
| 288 | entry = pending_entry_; |
| 289 | // The pending entry might be in entries_ (e.g., after a Clone), so we |
| 290 | // should also update the current_index. |
| 291 | current_index = pending_entry_index_; |
| 292 | } else { |
| 293 | DiscardNonCommittedEntriesInternal(); |
| 294 | current_index = GetCurrentEntryIndex(); |
| 295 | if (current_index != -1) { |
| 296 | entry = NavigationEntryImpl::FromNavigationEntry( |
| 297 | GetEntryAtIndex(current_index)); |
| 298 | } |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 299 | } |
| 300 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 301 | // If we are no where, then we can't reload. TODO(darin): We should add a |
| 302 | // CanReload method. |
| 303 | if (!entry) |
| 304 | return; |
| 305 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 306 | if (g_check_for_repost && check_for_repost && |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 307 | entry->GetHasPostData()) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 308 | // The user is asking to reload a page with POST data. Prompt to make sure |
| 309 | // they really want to do this. If they do, the dialog will call us back |
| 310 | // with check_for_repost = false. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 311 | web_contents_->NotifyBeforeFormRepostWarningShow(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 312 | |
| 313 | pending_reload_ = reload_type; |
| 314 | web_contents_->Activate(); |
| 315 | web_contents_->GetDelegate()->ShowRepostFormWarningDialog(web_contents_); |
| 316 | } else { |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 317 | if (!IsInitialNavigation()) |
| 318 | DiscardNonCommittedEntriesInternal(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 319 | |
| 320 | // If we are reloading an entry that no longer belongs to the current |
| 321 | // site instance (for example, refreshing a page for just installed app), |
| 322 | // the reload must happen in a new process. |
| 323 | // The new entry must have a new page_id and site instance, so it behaves |
| 324 | // as new navigation (which happens to clear forward history). |
| 325 | // Tabs that are discarded due to low memory conditions may not have a site |
| 326 | // instance, and should not be treated as a cross-site reload. |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 327 | SiteInstanceImpl* site_instance = entry->site_instance(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 328 | if (site_instance && |
| 329 | site_instance->HasWrongProcessForURL(entry->GetURL())) { |
| 330 | // Create a navigation entry that resembles the current one, but do not |
| 331 | // copy page id, site instance, content state, or timestamp. |
| 332 | NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry( |
| 333 | CreateNavigationEntry( |
| 334 | entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(), |
| 335 | false, entry->extra_headers(), browser_context_)); |
| 336 | |
| 337 | // Mark the reload type as NO_RELOAD, so navigation will not be considered |
| 338 | // a reload in the renderer. |
| 339 | reload_type = NavigationController::NO_RELOAD; |
| 340 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 341 | nav_entry->set_should_replace_entry(true); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 342 | pending_entry_ = nav_entry; |
| 343 | } else { |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 344 | pending_entry_ = entry; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 345 | pending_entry_index_ = current_index; |
| 346 | |
| 347 | // The title of the page being reloaded might have been removed in the |
| 348 | // meanwhile, so we need to revert to the default title upon reload and |
| 349 | // invalidate the previously cached title (SetTitle will do both). |
| 350 | // See Chromium issue 96041. |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 351 | pending_entry_->SetTitle(string16()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 352 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 353 | pending_entry_->SetTransitionType(PAGE_TRANSITION_RELOAD); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | NavigateToPendingEntry(reload_type); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | void NavigationControllerImpl::CancelPendingReload() { |
| 361 | DCHECK(pending_reload_ != NO_RELOAD); |
| 362 | pending_reload_ = NO_RELOAD; |
| 363 | } |
| 364 | |
| 365 | void NavigationControllerImpl::ContinuePendingReload() { |
| 366 | if (pending_reload_ == NO_RELOAD) { |
| 367 | NOTREACHED(); |
| 368 | } else { |
| 369 | ReloadInternal(false, pending_reload_); |
| 370 | pending_reload_ = NO_RELOAD; |
| 371 | } |
| 372 | } |
| 373 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 374 | bool NavigationControllerImpl::IsInitialNavigation() const { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 375 | return is_initial_navigation_; |
| 376 | } |
| 377 | |
| 378 | NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID( |
| 379 | SiteInstance* instance, int32 page_id) const { |
| 380 | int index = GetEntryIndexWithPageID(instance, page_id); |
| 381 | return (index != -1) ? entries_[index].get() : NULL; |
| 382 | } |
| 383 | |
| 384 | void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 385 | // When navigating to a new page, we don't know for sure if we will actually |
| 386 | // end up leaving the current page. The new page load could for example |
| 387 | // result in a download or a 'no content' response (e.g., a mailto: URL). |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 388 | SetPendingEntry(entry); |
| 389 | NavigateToPendingEntry(NO_RELOAD); |
| 390 | } |
| 391 | |
| 392 | void NavigationControllerImpl::SetPendingEntry(NavigationEntryImpl* entry) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 393 | DiscardNonCommittedEntriesInternal(); |
| 394 | pending_entry_ = entry; |
| 395 | NotificationService::current()->Notify( |
| 396 | NOTIFICATION_NAV_ENTRY_PENDING, |
| 397 | Source<NavigationController>(this), |
| 398 | Details<NavigationEntry>(entry)); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 399 | } |
| 400 | |
| 401 | NavigationEntry* NavigationControllerImpl::GetActiveEntry() const { |
| 402 | if (transient_entry_index_ != -1) |
| 403 | return entries_[transient_entry_index_].get(); |
| 404 | if (pending_entry_) |
| 405 | return pending_entry_; |
| 406 | return GetLastCommittedEntry(); |
| 407 | } |
| 408 | |
| 409 | NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const { |
| 410 | if (transient_entry_index_ != -1) |
| 411 | return entries_[transient_entry_index_].get(); |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 412 | // The pending entry is safe to return for new (non-history), browser- |
| 413 | // initiated navigations. Most renderer-initiated navigations should not |
| 414 | // show the pending entry, to prevent URL spoof attacks. |
| 415 | // |
| 416 | // We make an exception for renderer-initiated navigations in new tabs, as |
| 417 | // long as no other page has tried to access the initial empty document in |
| 418 | // the new tab. If another page modifies this blank page, a URL spoof is |
| 419 | // possible, so we must stop showing the pending entry. |
| 420 | RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>( |
| 421 | web_contents_->GetRenderViewHost()); |
| 422 | bool safe_to_show_pending = |
| 423 | pending_entry_ && |
| 424 | // Require a new navigation. |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 425 | pending_entry_->GetPageID() == -1 && |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 426 | // Require either browser-initiated or an unmodified new tab. |
| 427 | (!pending_entry_->is_renderer_initiated() || |
| 428 | (IsInitialNavigation() && |
| 429 | !GetLastCommittedEntry() && |
| 430 | !rvh->has_accessed_initial_document())); |
| 431 | |
| 432 | // Also allow showing the pending entry for history navigations in a new tab, |
| 433 | // such as Ctrl+Back. In this case, no existing page is visible and no one |
| 434 | // can script the new tab before it commits. |
| 435 | if (!safe_to_show_pending && |
| 436 | pending_entry_ && |
| 437 | pending_entry_->GetPageID() != -1 && |
| 438 | IsInitialNavigation() && |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 439 | !pending_entry_->is_renderer_initiated()) |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 440 | safe_to_show_pending = true; |
| 441 | |
| 442 | if (safe_to_show_pending) |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 443 | return pending_entry_; |
| 444 | return GetLastCommittedEntry(); |
| 445 | } |
| 446 | |
| 447 | int NavigationControllerImpl::GetCurrentEntryIndex() const { |
| 448 | if (transient_entry_index_ != -1) |
| 449 | return transient_entry_index_; |
| 450 | if (pending_entry_index_ != -1) |
| 451 | return pending_entry_index_; |
| 452 | return last_committed_entry_index_; |
| 453 | } |
| 454 | |
| 455 | NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const { |
| 456 | if (last_committed_entry_index_ == -1) |
| 457 | return NULL; |
| 458 | return entries_[last_committed_entry_index_].get(); |
| 459 | } |
| 460 | |
| 461 | bool NavigationControllerImpl::CanViewSource() const { |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 462 | const std::string& mime_type = web_contents_->GetContentsMimeType(); |
| 463 | bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) && |
| 464 | !net::IsSupportedMediaMimeType(mime_type); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 465 | NavigationEntry* active_entry = GetActiveEntry(); |
| 466 | return active_entry && !active_entry->IsViewSourceMode() && |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 467 | is_viewable_mime_type && !web_contents_->GetInterstitialPage(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 468 | } |
| 469 | |
| 470 | int NavigationControllerImpl::GetLastCommittedEntryIndex() const { |
| 471 | return last_committed_entry_index_; |
| 472 | } |
| 473 | |
| 474 | int NavigationControllerImpl::GetEntryCount() const { |
| 475 | DCHECK(entries_.size() <= max_entry_count()); |
| 476 | return static_cast<int>(entries_.size()); |
| 477 | } |
| 478 | |
| 479 | NavigationEntry* NavigationControllerImpl::GetEntryAtIndex( |
| 480 | int index) const { |
| 481 | return entries_.at(index).get(); |
| 482 | } |
| 483 | |
| 484 | NavigationEntry* NavigationControllerImpl::GetEntryAtOffset( |
| 485 | int offset) const { |
| 486 | int index = GetIndexForOffset(offset); |
| 487 | if (index < 0 || index >= GetEntryCount()) |
| 488 | return NULL; |
| 489 | |
| 490 | return entries_[index].get(); |
| 491 | } |
| 492 | |
| 493 | int NavigationControllerImpl::GetIndexForOffset(int offset) const { |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 494 | return GetCurrentEntryIndex() + offset; |
| 495 | } |
| 496 | |
| 497 | void NavigationControllerImpl::TakeScreenshot() { |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 498 | screenshot_manager_->TakeScreenshot(); |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 499 | } |
| 500 | |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 501 | void NavigationControllerImpl::SetScreenshotManager( |
| 502 | WebContentsScreenshotManager* manager) { |
| 503 | screenshot_manager_.reset(manager ? manager : |
| 504 | new WebContentsScreenshotManager(this)); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 505 | } |
| 506 | |
| 507 | bool NavigationControllerImpl::CanGoBack() const { |
| 508 | return entries_.size() > 1 && GetCurrentEntryIndex() > 0; |
| 509 | } |
| 510 | |
| 511 | bool NavigationControllerImpl::CanGoForward() const { |
| 512 | int index = GetCurrentEntryIndex(); |
| 513 | return index >= 0 && index < (static_cast<int>(entries_.size()) - 1); |
| 514 | } |
| 515 | |
| 516 | bool NavigationControllerImpl::CanGoToOffset(int offset) const { |
| 517 | int index = GetIndexForOffset(offset); |
| 518 | return index >= 0 && index < GetEntryCount(); |
| 519 | } |
| 520 | |
| 521 | void NavigationControllerImpl::GoBack() { |
| 522 | if (!CanGoBack()) { |
| 523 | NOTREACHED(); |
| 524 | return; |
| 525 | } |
| 526 | |
| 527 | // Base the navigation on where we are now... |
| 528 | int current_index = GetCurrentEntryIndex(); |
| 529 | |
| 530 | DiscardNonCommittedEntries(); |
| 531 | |
| 532 | pending_entry_index_ = current_index - 1; |
| 533 | entries_[pending_entry_index_]->SetTransitionType( |
| 534 | PageTransitionFromInt( |
| 535 | entries_[pending_entry_index_]->GetTransitionType() | |
| 536 | PAGE_TRANSITION_FORWARD_BACK)); |
| 537 | NavigateToPendingEntry(NO_RELOAD); |
| 538 | } |
| 539 | |
| 540 | void NavigationControllerImpl::GoForward() { |
| 541 | if (!CanGoForward()) { |
| 542 | NOTREACHED(); |
| 543 | return; |
| 544 | } |
| 545 | |
| 546 | bool transient = (transient_entry_index_ != -1); |
| 547 | |
| 548 | // Base the navigation on where we are now... |
| 549 | int current_index = GetCurrentEntryIndex(); |
| 550 | |
| 551 | DiscardNonCommittedEntries(); |
| 552 | |
| 553 | pending_entry_index_ = current_index; |
| 554 | // If there was a transient entry, we removed it making the current index |
| 555 | // the next page. |
| 556 | if (!transient) |
| 557 | pending_entry_index_++; |
| 558 | |
| 559 | entries_[pending_entry_index_]->SetTransitionType( |
| 560 | PageTransitionFromInt( |
| 561 | entries_[pending_entry_index_]->GetTransitionType() | |
| 562 | PAGE_TRANSITION_FORWARD_BACK)); |
| 563 | NavigateToPendingEntry(NO_RELOAD); |
| 564 | } |
| 565 | |
| 566 | void NavigationControllerImpl::GoToIndex(int index) { |
| 567 | if (index < 0 || index >= static_cast<int>(entries_.size())) { |
| 568 | NOTREACHED(); |
| 569 | return; |
| 570 | } |
| 571 | |
| 572 | if (transient_entry_index_ != -1) { |
| 573 | if (index == transient_entry_index_) { |
| 574 | // Nothing to do when navigating to the transient. |
| 575 | return; |
| 576 | } |
| 577 | if (index > transient_entry_index_) { |
| 578 | // Removing the transient is goint to shift all entries by 1. |
| 579 | index--; |
| 580 | } |
| 581 | } |
| 582 | |
| 583 | DiscardNonCommittedEntries(); |
| 584 | |
| 585 | pending_entry_index_ = index; |
| 586 | entries_[pending_entry_index_]->SetTransitionType( |
| 587 | PageTransitionFromInt( |
| 588 | entries_[pending_entry_index_]->GetTransitionType() | |
| 589 | PAGE_TRANSITION_FORWARD_BACK)); |
| 590 | NavigateToPendingEntry(NO_RELOAD); |
| 591 | } |
| 592 | |
| 593 | void NavigationControllerImpl::GoToOffset(int offset) { |
| 594 | if (!CanGoToOffset(offset)) |
| 595 | return; |
| 596 | |
| 597 | GoToIndex(GetIndexForOffset(offset)); |
| 598 | } |
| 599 | |
Ben Murdoch | a3f7b4e | 2013-07-24 10:36:34 +0100 | [diff] [blame] | 600 | bool NavigationControllerImpl::RemoveEntryAtIndex(int index) { |
| 601 | if (index == last_committed_entry_index_ || |
| 602 | index == pending_entry_index_) |
| 603 | return false; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 604 | |
| 605 | RemoveEntryAtIndexInternal(index); |
Ben Murdoch | a3f7b4e | 2013-07-24 10:36:34 +0100 | [diff] [blame] | 606 | return true; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | void NavigationControllerImpl::UpdateVirtualURLToURL( |
| 610 | NavigationEntryImpl* entry, const GURL& new_url) { |
| 611 | GURL new_virtual_url(new_url); |
| 612 | if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite( |
| 613 | &new_virtual_url, entry->GetVirtualURL(), browser_context_)) { |
| 614 | entry->SetVirtualURL(new_virtual_url); |
| 615 | } |
| 616 | } |
| 617 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 618 | void NavigationControllerImpl::LoadURL( |
| 619 | const GURL& url, |
| 620 | const Referrer& referrer, |
| 621 | PageTransition transition, |
| 622 | const std::string& extra_headers) { |
| 623 | LoadURLParams params(url); |
| 624 | params.referrer = referrer; |
| 625 | params.transition_type = transition; |
| 626 | params.extra_headers = extra_headers; |
| 627 | LoadURLWithParams(params); |
| 628 | } |
| 629 | |
| 630 | void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) { |
Torne (Richard Coles) | 7d4cd47 | 2013-06-19 11:58:07 +0100 | [diff] [blame] | 631 | TRACE_EVENT0("browser", "NavigationControllerImpl::LoadURLWithParams"); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 632 | if (HandleDebugURL(params.url, params.transition_type)) |
| 633 | return; |
| 634 | |
| 635 | // Checks based on params.load_type. |
| 636 | switch (params.load_type) { |
| 637 | case LOAD_TYPE_DEFAULT: |
| 638 | break; |
| 639 | case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST: |
| 640 | if (!params.url.SchemeIs(chrome::kHttpScheme) && |
| 641 | !params.url.SchemeIs(chrome::kHttpsScheme)) { |
| 642 | NOTREACHED() << "Http post load must use http(s) scheme."; |
| 643 | return; |
| 644 | } |
| 645 | break; |
| 646 | case LOAD_TYPE_DATA: |
| 647 | if (!params.url.SchemeIs(chrome::kDataScheme)) { |
| 648 | NOTREACHED() << "Data load must use data scheme."; |
| 649 | return; |
| 650 | } |
| 651 | break; |
| 652 | default: |
| 653 | NOTREACHED(); |
| 654 | break; |
| 655 | }; |
| 656 | |
| 657 | // The user initiated a load, we don't need to reload anymore. |
| 658 | needs_reload_ = false; |
| 659 | |
| 660 | bool override = false; |
| 661 | switch (params.override_user_agent) { |
| 662 | case UA_OVERRIDE_INHERIT: |
| 663 | override = ShouldKeepOverride(GetLastCommittedEntry()); |
| 664 | break; |
| 665 | case UA_OVERRIDE_TRUE: |
| 666 | override = true; |
| 667 | break; |
| 668 | case UA_OVERRIDE_FALSE: |
| 669 | override = false; |
| 670 | break; |
| 671 | default: |
| 672 | NOTREACHED(); |
| 673 | break; |
| 674 | } |
| 675 | |
| 676 | NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry( |
| 677 | CreateNavigationEntry( |
| 678 | params.url, |
| 679 | params.referrer, |
| 680 | params.transition_type, |
| 681 | params.is_renderer_initiated, |
| 682 | params.extra_headers, |
| 683 | browser_context_)); |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 684 | if (params.should_replace_current_entry) |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 685 | entry->set_should_replace_entry(true); |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 686 | entry->set_should_clear_history_list(params.should_clear_history_list); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 687 | entry->SetIsOverridingUserAgent(override); |
| 688 | entry->set_transferred_global_request_id( |
| 689 | params.transferred_global_request_id); |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 690 | entry->SetFrameToNavigate(params.frame_name); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 691 | |
| 692 | switch (params.load_type) { |
| 693 | case LOAD_TYPE_DEFAULT: |
| 694 | break; |
| 695 | case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST: |
| 696 | entry->SetHasPostData(true); |
| 697 | entry->SetBrowserInitiatedPostData( |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 698 | params.browser_initiated_post_data.get()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 699 | break; |
| 700 | case LOAD_TYPE_DATA: |
| 701 | entry->SetBaseURLForDataURL(params.base_url_for_data_url); |
| 702 | entry->SetVirtualURL(params.virtual_url_for_data_url); |
| 703 | entry->SetCanLoadLocalResources(params.can_load_local_resources); |
| 704 | break; |
| 705 | default: |
| 706 | NOTREACHED(); |
| 707 | break; |
| 708 | }; |
| 709 | |
| 710 | LoadEntry(entry); |
| 711 | } |
| 712 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 713 | bool NavigationControllerImpl::RendererDidNavigate( |
| 714 | const ViewHostMsg_FrameNavigate_Params& params, |
| 715 | LoadCommittedDetails* details) { |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 716 | is_initial_navigation_ = false; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 717 | |
| 718 | // Save the previous state before we clobber it. |
| 719 | if (GetLastCommittedEntry()) { |
| 720 | details->previous_url = GetLastCommittedEntry()->GetURL(); |
| 721 | details->previous_entry_index = GetLastCommittedEntryIndex(); |
| 722 | } else { |
| 723 | details->previous_url = GURL(); |
| 724 | details->previous_entry_index = -1; |
| 725 | } |
| 726 | |
| 727 | // If we have a pending entry at this point, it should have a SiteInstance. |
| 728 | // Restored entries start out with a null SiteInstance, but we should have |
| 729 | // assigned one in NavigateToPendingEntry. |
| 730 | DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance()); |
| 731 | |
| 732 | // If we are doing a cross-site reload, we need to replace the existing |
| 733 | // navigation entry, not add another entry to the history. This has the side |
| 734 | // effect of removing forward browsing history, if such existed. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 735 | // Or if we are doing a cross-site redirect navigation, |
| 736 | // we will do a similar thing. |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 737 | details->did_replace_entry = |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 738 | pending_entry_ && pending_entry_->should_replace_entry(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 739 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 740 | // Do navigation-type specific actions. These will make and commit an entry. |
| 741 | details->type = ClassifyNavigation(params); |
| 742 | |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 743 | // is_in_page must be computed before the entry gets committed. |
| 744 | details->is_in_page = IsURLInPageNavigation( |
| 745 | params.url, params.was_within_same_page, details->type); |
| 746 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 747 | switch (details->type) { |
| 748 | case NAVIGATION_TYPE_NEW_PAGE: |
| 749 | RendererDidNavigateToNewPage(params, details->did_replace_entry); |
| 750 | break; |
| 751 | case NAVIGATION_TYPE_EXISTING_PAGE: |
| 752 | RendererDidNavigateToExistingPage(params); |
| 753 | break; |
| 754 | case NAVIGATION_TYPE_SAME_PAGE: |
| 755 | RendererDidNavigateToSamePage(params); |
| 756 | break; |
| 757 | case NAVIGATION_TYPE_IN_PAGE: |
| 758 | RendererDidNavigateInPage(params, &details->did_replace_entry); |
| 759 | break; |
| 760 | case NAVIGATION_TYPE_NEW_SUBFRAME: |
| 761 | RendererDidNavigateNewSubframe(params); |
| 762 | break; |
| 763 | case NAVIGATION_TYPE_AUTO_SUBFRAME: |
| 764 | if (!RendererDidNavigateAutoSubframe(params)) |
| 765 | return false; |
| 766 | break; |
| 767 | case NAVIGATION_TYPE_NAV_IGNORE: |
| 768 | // If a pending navigation was in progress, this canceled it. We should |
| 769 | // discard it and make sure it is removed from the URL bar. After that, |
| 770 | // there is nothing we can do with this navigation, so we just return to |
| 771 | // the caller that nothing has happened. |
| 772 | if (pending_entry_) { |
| 773 | DiscardNonCommittedEntries(); |
| 774 | web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL); |
| 775 | } |
| 776 | return false; |
| 777 | default: |
| 778 | NOTREACHED(); |
| 779 | } |
| 780 | |
| 781 | // At this point, we know that the navigation has just completed, so |
| 782 | // record the time. |
| 783 | // |
| 784 | // TODO(akalin): Use "sane time" as described in |
| 785 | // http://www.chromium.org/developers/design-documents/sane-time . |
| 786 | base::Time timestamp = |
| 787 | time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run()); |
| 788 | DVLOG(1) << "Navigation finished at (smoothed) timestamp " |
| 789 | << timestamp.ToInternalValue(); |
| 790 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 791 | // We should not have a pending entry anymore. Clear it again in case any |
| 792 | // error cases above forgot to do so. |
| 793 | DiscardNonCommittedEntriesInternal(); |
| 794 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 795 | // All committed entries should have nonempty content state so WebKit doesn't |
| 796 | // get confused when we go back to them (see the function for details). |
Torne (Richard Coles) | 90dce4d | 2013-05-29 14:40:03 +0100 | [diff] [blame] | 797 | DCHECK(params.page_state.IsValid()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 798 | NavigationEntryImpl* active_entry = |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 799 | NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 800 | active_entry->SetTimestamp(timestamp); |
Torne (Richard Coles) | 90dce4d | 2013-05-29 14:40:03 +0100 | [diff] [blame] | 801 | active_entry->SetPageState(params.page_state); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 802 | // No longer needed since content state will hold the post data if any. |
| 803 | active_entry->SetBrowserInitiatedPostData(NULL); |
| 804 | |
| 805 | // Once committed, we do not need to track if the entry was initiated by |
| 806 | // the renderer. |
| 807 | active_entry->set_is_renderer_initiated(false); |
| 808 | |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 809 | // Once committed, we no longer need to track whether the session history was |
| 810 | // cleared. Navigating to this entry again shouldn't clear it again. |
| 811 | active_entry->set_should_clear_history_list(false); |
| 812 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 813 | // The active entry's SiteInstance should match our SiteInstance. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 814 | CHECK(active_entry->site_instance() == web_contents_->GetSiteInstance()); |
| 815 | |
| 816 | // Remember the bindings the renderer process has at this point, so that |
| 817 | // we do not grant this entry additional bindings if we come back to it. |
| 818 | active_entry->SetBindings( |
| 819 | web_contents_->GetRenderViewHost()->GetEnabledBindings()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 820 | |
| 821 | // Now prep the rest of the details for the notification and broadcast. |
| 822 | details->entry = active_entry; |
| 823 | details->is_main_frame = |
| 824 | PageTransitionIsMainFrame(params.transition); |
| 825 | details->serialized_security_info = params.security_info; |
| 826 | details->http_status_code = params.http_status_code; |
| 827 | NotifyNavigationEntryCommitted(details); |
| 828 | |
| 829 | return true; |
| 830 | } |
| 831 | |
| 832 | NavigationType NavigationControllerImpl::ClassifyNavigation( |
| 833 | const ViewHostMsg_FrameNavigate_Params& params) const { |
| 834 | if (params.page_id == -1) { |
| 835 | // The renderer generates the page IDs, and so if it gives us the invalid |
| 836 | // page ID (-1) we know it didn't actually navigate. This happens in a few |
| 837 | // cases: |
| 838 | // |
| 839 | // - If a page makes a popup navigated to about blank, and then writes |
| 840 | // stuff like a subframe navigated to a real page. We'll get the commit |
| 841 | // for the subframe, but there won't be any commit for the outer page. |
| 842 | // |
| 843 | // - We were also getting these for failed loads (for example, bug 21849). |
| 844 | // The guess is that we get a "load commit" for the alternate error page, |
| 845 | // but that doesn't affect the page ID, so we get the "old" one, which |
| 846 | // could be invalid. This can also happen for a cross-site transition |
| 847 | // that causes us to swap processes. Then the error page load will be in |
| 848 | // a new process with no page IDs ever assigned (and hence a -1 value), |
| 849 | // yet the navigation controller still might have previous pages in its |
| 850 | // list. |
| 851 | // |
| 852 | // In these cases, there's nothing we can do with them, so ignore. |
| 853 | return NAVIGATION_TYPE_NAV_IGNORE; |
| 854 | } |
| 855 | |
| 856 | if (params.page_id > web_contents_->GetMaxPageID()) { |
| 857 | // Greater page IDs than we've ever seen before are new pages. We may or may |
| 858 | // not have a pending entry for the page, and this may or may not be the |
| 859 | // main frame. |
| 860 | if (PageTransitionIsMainFrame(params.transition)) |
| 861 | return NAVIGATION_TYPE_NEW_PAGE; |
| 862 | |
| 863 | // When this is a new subframe navigation, we should have a committed page |
| 864 | // for which it's a suframe in. This may not be the case when an iframe is |
| 865 | // navigated on a popup navigated to about:blank (the iframe would be |
| 866 | // written into the popup by script on the main page). For these cases, |
| 867 | // there isn't any navigation stuff we can do, so just ignore it. |
| 868 | if (!GetLastCommittedEntry()) |
| 869 | return NAVIGATION_TYPE_NAV_IGNORE; |
| 870 | |
| 871 | // Valid subframe navigation. |
| 872 | return NAVIGATION_TYPE_NEW_SUBFRAME; |
| 873 | } |
| 874 | |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 875 | // We only clear the session history when navigating to a new page. |
| 876 | DCHECK(!params.history_list_was_cleared); |
| 877 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 878 | // Now we know that the notification is for an existing page. Find that entry. |
| 879 | int existing_entry_index = GetEntryIndexWithPageID( |
| 880 | web_contents_->GetSiteInstance(), |
| 881 | params.page_id); |
| 882 | if (existing_entry_index == -1) { |
| 883 | // The page was not found. It could have been pruned because of the limit on |
| 884 | // back/forward entries (not likely since we'll usually tell it to navigate |
| 885 | // to such entries). It could also mean that the renderer is smoking crack. |
| 886 | NOTREACHED(); |
| 887 | |
| 888 | // Because the unknown entry has committed, we risk showing the wrong URL in |
| 889 | // release builds. Instead, we'll kill the renderer process to be safe. |
| 890 | LOG(ERROR) << "terminating renderer for bad navigation: " << params.url; |
| 891 | RecordAction(UserMetricsAction("BadMessageTerminate_NC")); |
| 892 | |
| 893 | // Temporary code so we can get more information. Format: |
| 894 | // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2 |
| 895 | std::string temp = params.url.spec(); |
| 896 | temp.append("#page"); |
| 897 | temp.append(base::IntToString(params.page_id)); |
| 898 | temp.append("#max"); |
| 899 | temp.append(base::IntToString(web_contents_->GetMaxPageID())); |
| 900 | temp.append("#frame"); |
| 901 | temp.append(base::IntToString(params.frame_id)); |
| 902 | temp.append("#ids"); |
| 903 | for (int i = 0; i < static_cast<int>(entries_.size()); ++i) { |
| 904 | // Append entry metadata (e.g., 3_7x): |
| 905 | // 3: page_id |
| 906 | // 7: SiteInstance ID, or N for null |
| 907 | // x: appended if not from the current SiteInstance |
| 908 | temp.append(base::IntToString(entries_[i]->GetPageID())); |
| 909 | temp.append("_"); |
| 910 | if (entries_[i]->site_instance()) |
| 911 | temp.append(base::IntToString(entries_[i]->site_instance()->GetId())); |
| 912 | else |
| 913 | temp.append("N"); |
| 914 | if (entries_[i]->site_instance() != web_contents_->GetSiteInstance()) |
| 915 | temp.append("x"); |
| 916 | temp.append(","); |
| 917 | } |
| 918 | GURL url(temp); |
| 919 | static_cast<RenderViewHostImpl*>( |
| 920 | web_contents_->GetRenderViewHost())->Send( |
| 921 | new ViewMsg_TempCrashWithData(url)); |
| 922 | return NAVIGATION_TYPE_NAV_IGNORE; |
| 923 | } |
| 924 | NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get(); |
| 925 | |
| 926 | if (!PageTransitionIsMainFrame(params.transition)) { |
| 927 | // All manual subframes would get new IDs and were handled above, so we |
| 928 | // know this is auto. Since the current page was found in the navigation |
| 929 | // entry list, we're guaranteed to have a last committed entry. |
| 930 | DCHECK(GetLastCommittedEntry()); |
| 931 | return NAVIGATION_TYPE_AUTO_SUBFRAME; |
| 932 | } |
| 933 | |
| 934 | // Anything below here we know is a main frame navigation. |
| 935 | if (pending_entry_ && |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 936 | !pending_entry_->is_renderer_initiated() && |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 937 | existing_entry != pending_entry_ && |
| 938 | pending_entry_->GetPageID() == -1 && |
| 939 | existing_entry == GetLastCommittedEntry()) { |
| 940 | // In this case, we have a pending entry for a URL but WebCore didn't do a |
| 941 | // new navigation. This happens when you press enter in the URL bar to |
| 942 | // reload. We will create a pending entry, but WebKit will convert it to |
| 943 | // a reload since it's the same page and not create a new entry for it |
| 944 | // (the user doesn't want to have a new back/forward entry when they do |
| 945 | // this). If this matches the last committed entry, we want to just ignore |
| 946 | // the pending entry and go back to where we were (the "existing entry"). |
| 947 | return NAVIGATION_TYPE_SAME_PAGE; |
| 948 | } |
| 949 | |
| 950 | // Any toplevel navigations with the same base (minus the reference fragment) |
| 951 | // are in-page navigations. We weeded out subframe navigations above. Most of |
| 952 | // the time this doesn't matter since WebKit doesn't tell us about subframe |
| 953 | // navigations that don't actually navigate, but it can happen when there is |
| 954 | // an encoding override (it always sends a navigation request). |
| 955 | if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url, |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 956 | params.was_within_same_page, |
| 957 | NAVIGATION_TYPE_UNKNOWN)) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 958 | return NAVIGATION_TYPE_IN_PAGE; |
| 959 | } |
| 960 | |
| 961 | // Since we weeded out "new" navigations above, we know this is an existing |
| 962 | // (back/forward) navigation. |
| 963 | return NAVIGATION_TYPE_EXISTING_PAGE; |
| 964 | } |
| 965 | |
| 966 | bool NavigationControllerImpl::IsRedirect( |
| 967 | const ViewHostMsg_FrameNavigate_Params& params) { |
| 968 | // For main frame transition, we judge by params.transition. |
| 969 | // Otherwise, by params.redirects. |
| 970 | if (PageTransitionIsMainFrame(params.transition)) { |
| 971 | return PageTransitionIsRedirect(params.transition); |
| 972 | } |
| 973 | return params.redirects.size() > 1; |
| 974 | } |
| 975 | |
| 976 | void NavigationControllerImpl::RendererDidNavigateToNewPage( |
Torne (Richard Coles) | a93a17c | 2013-05-15 11:34:50 +0100 | [diff] [blame] | 977 | const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 978 | NavigationEntryImpl* new_entry; |
| 979 | bool update_virtual_url; |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 980 | // Only make a copy of the pending entry if it is appropriate for the new page |
| 981 | // that was just loaded. We verify this at a coarse grain by checking that |
| 982 | // the SiteInstance hasn't been assigned to something else. |
| 983 | if (pending_entry_ && |
| 984 | (!pending_entry_->site_instance() || |
| 985 | pending_entry_->site_instance() == web_contents_->GetSiteInstance())) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 986 | new_entry = new NavigationEntryImpl(*pending_entry_); |
| 987 | |
| 988 | // Don't use the page type from the pending entry. Some interstitial page |
| 989 | // may have set the type to interstitial. Once we commit, however, the page |
| 990 | // type must always be normal. |
| 991 | new_entry->set_page_type(PAGE_TYPE_NORMAL); |
| 992 | update_virtual_url = new_entry->update_virtual_url_with_url(); |
| 993 | } else { |
| 994 | new_entry = new NavigationEntryImpl; |
| 995 | |
| 996 | // Find out whether the new entry needs to update its virtual URL on URL |
| 997 | // change and set up the entry accordingly. This is needed to correctly |
| 998 | // update the virtual URL when replaceState is called after a pushState. |
| 999 | GURL url = params.url; |
| 1000 | bool needs_update = false; |
| 1001 | BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary( |
| 1002 | &url, browser_context_, &needs_update); |
| 1003 | new_entry->set_update_virtual_url_with_url(needs_update); |
| 1004 | |
| 1005 | // When navigating to a new page, give the browser URL handler a chance to |
| 1006 | // update the virtual URL based on the new URL. For example, this is needed |
| 1007 | // to show chrome://bookmarks/#1 when the bookmarks webui extension changes |
| 1008 | // the URL. |
| 1009 | update_virtual_url = needs_update; |
| 1010 | } |
| 1011 | |
| 1012 | new_entry->SetURL(params.url); |
| 1013 | if (update_virtual_url) |
| 1014 | UpdateVirtualURLToURL(new_entry, params.url); |
| 1015 | new_entry->SetReferrer(params.referrer); |
| 1016 | new_entry->SetPageID(params.page_id); |
| 1017 | new_entry->SetTransitionType(params.transition); |
| 1018 | new_entry->set_site_instance( |
| 1019 | static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance())); |
| 1020 | new_entry->SetHasPostData(params.is_post); |
| 1021 | new_entry->SetPostID(params.post_id); |
| 1022 | new_entry->SetOriginalRequestURL(params.original_request_url); |
| 1023 | new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent); |
| 1024 | |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 1025 | DCHECK(!params.history_list_was_cleared || !replace_entry); |
| 1026 | // The browser requested to clear the session history when it initiated the |
| 1027 | // navigation. Now we know that the renderer has updated its state accordingly |
| 1028 | // and it is safe to also clear the browser side history. |
| 1029 | if (params.history_list_was_cleared) { |
| 1030 | DiscardNonCommittedEntriesInternal(); |
| 1031 | entries_.clear(); |
| 1032 | last_committed_entry_index_ = -1; |
| 1033 | } |
| 1034 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1035 | InsertOrReplaceEntry(new_entry, replace_entry); |
| 1036 | } |
| 1037 | |
| 1038 | void NavigationControllerImpl::RendererDidNavigateToExistingPage( |
| 1039 | const ViewHostMsg_FrameNavigate_Params& params) { |
| 1040 | // We should only get here for main frame navigations. |
| 1041 | DCHECK(PageTransitionIsMainFrame(params.transition)); |
| 1042 | |
| 1043 | // This is a back/forward navigation. The existing page for the ID is |
| 1044 | // guaranteed to exist by ClassifyNavigation, and we just need to update it |
| 1045 | // with new information from the renderer. |
| 1046 | int entry_index = GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), |
| 1047 | params.page_id); |
| 1048 | DCHECK(entry_index >= 0 && |
| 1049 | entry_index < static_cast<int>(entries_.size())); |
| 1050 | NavigationEntryImpl* entry = entries_[entry_index].get(); |
| 1051 | |
| 1052 | // The URL may have changed due to redirects. |
| 1053 | entry->SetURL(params.url); |
| 1054 | if (entry->update_virtual_url_with_url()) |
| 1055 | UpdateVirtualURLToURL(entry, params.url); |
| 1056 | |
| 1057 | // The redirected to page should not inherit the favicon from the previous |
| 1058 | // page. |
| 1059 | if (PageTransitionIsRedirect(params.transition)) |
| 1060 | entry->GetFavicon() = FaviconStatus(); |
| 1061 | |
| 1062 | // The site instance will normally be the same except during session restore, |
| 1063 | // when no site instance will be assigned. |
| 1064 | DCHECK(entry->site_instance() == NULL || |
| 1065 | entry->site_instance() == web_contents_->GetSiteInstance()); |
| 1066 | entry->set_site_instance( |
| 1067 | static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance())); |
| 1068 | |
| 1069 | entry->SetHasPostData(params.is_post); |
| 1070 | entry->SetPostID(params.post_id); |
| 1071 | |
| 1072 | // The entry we found in the list might be pending if the user hit |
| 1073 | // back/forward/reload. This load should commit it (since it's already in the |
| 1074 | // list, we can just discard the pending pointer). We should also discard the |
| 1075 | // pending entry if it corresponds to a different navigation, since that one |
| 1076 | // is now likely canceled. If it is not canceled, we will treat it as a new |
| 1077 | // navigation when it arrives, which is also ok. |
| 1078 | // |
| 1079 | // Note that we need to use the "internal" version since we don't want to |
| 1080 | // actually change any other state, just kill the pointer. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1081 | DiscardNonCommittedEntriesInternal(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1082 | |
| 1083 | // If a transient entry was removed, the indices might have changed, so we |
| 1084 | // have to query the entry index again. |
| 1085 | last_committed_entry_index_ = |
| 1086 | GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id); |
| 1087 | } |
| 1088 | |
| 1089 | void NavigationControllerImpl::RendererDidNavigateToSamePage( |
| 1090 | const ViewHostMsg_FrameNavigate_Params& params) { |
| 1091 | // This mode implies we have a pending entry that's the same as an existing |
| 1092 | // entry for this page ID. This entry is guaranteed to exist by |
| 1093 | // ClassifyNavigation. All we need to do is update the existing entry. |
| 1094 | NavigationEntryImpl* existing_entry = GetEntryWithPageID( |
| 1095 | web_contents_->GetSiteInstance(), params.page_id); |
| 1096 | |
| 1097 | // We assign the entry's unique ID to be that of the new one. Since this is |
| 1098 | // always the result of a user action, we want to dismiss infobars, etc. like |
| 1099 | // a regular user-initiated navigation. |
| 1100 | existing_entry->set_unique_id(pending_entry_->GetUniqueID()); |
| 1101 | |
| 1102 | // The URL may have changed due to redirects. |
| 1103 | if (existing_entry->update_virtual_url_with_url()) |
| 1104 | UpdateVirtualURLToURL(existing_entry, params.url); |
| 1105 | existing_entry->SetURL(params.url); |
| 1106 | |
| 1107 | DiscardNonCommittedEntries(); |
| 1108 | } |
| 1109 | |
| 1110 | void NavigationControllerImpl::RendererDidNavigateInPage( |
| 1111 | const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) { |
| 1112 | DCHECK(PageTransitionIsMainFrame(params.transition)) << |
| 1113 | "WebKit should only tell us about in-page navs for the main frame."; |
| 1114 | // We're guaranteed to have an entry for this one. |
| 1115 | NavigationEntryImpl* existing_entry = GetEntryWithPageID( |
| 1116 | web_contents_->GetSiteInstance(), params.page_id); |
| 1117 | |
| 1118 | // Reference fragment navigation. We're guaranteed to have the last_committed |
| 1119 | // entry and it will be the same page as the new navigation (minus the |
| 1120 | // reference fragments, of course). We'll update the URL of the existing |
| 1121 | // entry without pruning the forward history. |
| 1122 | existing_entry->SetURL(params.url); |
| 1123 | if (existing_entry->update_virtual_url_with_url()) |
| 1124 | UpdateVirtualURLToURL(existing_entry, params.url); |
| 1125 | |
| 1126 | // This replaces the existing entry since the page ID didn't change. |
| 1127 | *did_replace_entry = true; |
| 1128 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1129 | DiscardNonCommittedEntriesInternal(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1130 | |
| 1131 | // If a transient entry was removed, the indices might have changed, so we |
| 1132 | // have to query the entry index again. |
| 1133 | last_committed_entry_index_ = |
| 1134 | GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id); |
| 1135 | } |
| 1136 | |
| 1137 | void NavigationControllerImpl::RendererDidNavigateNewSubframe( |
| 1138 | const ViewHostMsg_FrameNavigate_Params& params) { |
Ben Murdoch | 7dbb3d5 | 2013-07-17 14:55:54 +0100 | [diff] [blame] | 1139 | if (PageTransitionCoreTypeIs(params.transition, |
| 1140 | PAGE_TRANSITION_AUTO_SUBFRAME)) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1141 | // This is not user-initiated. Ignore. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1142 | DiscardNonCommittedEntriesInternal(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1143 | return; |
| 1144 | } |
| 1145 | |
| 1146 | // Manual subframe navigations just get the current entry cloned so the user |
| 1147 | // can go back or forward to it. The actual subframe information will be |
| 1148 | // stored in the page state for each of those entries. This happens out of |
| 1149 | // band with the actual navigations. |
| 1150 | DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee " |
| 1151 | << "that a last committed entry exists."; |
| 1152 | NavigationEntryImpl* new_entry = new NavigationEntryImpl( |
| 1153 | *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry())); |
| 1154 | new_entry->SetPageID(params.page_id); |
| 1155 | InsertOrReplaceEntry(new_entry, false); |
| 1156 | } |
| 1157 | |
| 1158 | bool NavigationControllerImpl::RendererDidNavigateAutoSubframe( |
| 1159 | const ViewHostMsg_FrameNavigate_Params& params) { |
| 1160 | // We're guaranteed to have a previously committed entry, and we now need to |
| 1161 | // handle navigation inside of a subframe in it without creating a new entry. |
| 1162 | DCHECK(GetLastCommittedEntry()); |
| 1163 | |
| 1164 | // Handle the case where we're navigating back/forward to a previous subframe |
| 1165 | // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the |
| 1166 | // header file. In case "1." this will be a NOP. |
| 1167 | int entry_index = GetEntryIndexWithPageID( |
| 1168 | web_contents_->GetSiteInstance(), |
| 1169 | params.page_id); |
| 1170 | if (entry_index < 0 || |
| 1171 | entry_index >= static_cast<int>(entries_.size())) { |
| 1172 | NOTREACHED(); |
| 1173 | return false; |
| 1174 | } |
| 1175 | |
| 1176 | // Update the current navigation entry in case we're going back/forward. |
| 1177 | if (entry_index != last_committed_entry_index_) { |
| 1178 | last_committed_entry_index_ = entry_index; |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1179 | DiscardNonCommittedEntriesInternal(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1180 | return true; |
| 1181 | } |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1182 | |
| 1183 | // We do not need to discard the pending entry in this case, since we will |
| 1184 | // not generate commit notifications for this auto-subframe navigation. |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1185 | return false; |
| 1186 | } |
| 1187 | |
| 1188 | int NavigationControllerImpl::GetIndexOfEntry( |
| 1189 | const NavigationEntryImpl* entry) const { |
| 1190 | const NavigationEntries::const_iterator i(std::find( |
| 1191 | entries_.begin(), |
| 1192 | entries_.end(), |
| 1193 | entry)); |
| 1194 | return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin()); |
| 1195 | } |
| 1196 | |
| 1197 | bool NavigationControllerImpl::IsURLInPageNavigation( |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 1198 | const GURL& url, |
| 1199 | bool renderer_says_in_page, |
| 1200 | NavigationType navigation_type) const { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1201 | NavigationEntry* last_committed = GetLastCommittedEntry(); |
| 1202 | return last_committed && AreURLsInPageNavigation( |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 1203 | last_committed->GetURL(), url, renderer_says_in_page, navigation_type); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1204 | } |
| 1205 | |
| 1206 | void NavigationControllerImpl::CopyStateFrom( |
| 1207 | const NavigationController& temp) { |
| 1208 | const NavigationControllerImpl& source = |
| 1209 | static_cast<const NavigationControllerImpl&>(temp); |
| 1210 | // Verify that we look new. |
| 1211 | DCHECK(GetEntryCount() == 0 && !GetPendingEntry()); |
| 1212 | |
| 1213 | if (source.GetEntryCount() == 0) |
| 1214 | return; // Nothing new to do. |
| 1215 | |
| 1216 | needs_reload_ = true; |
| 1217 | InsertEntriesFrom(source, source.GetEntryCount()); |
| 1218 | |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 1219 | for (SessionStorageNamespaceMap::const_iterator it = |
| 1220 | source.session_storage_namespace_map_.begin(); |
| 1221 | it != source.session_storage_namespace_map_.end(); |
| 1222 | ++it) { |
| 1223 | SessionStorageNamespaceImpl* source_namespace = |
| 1224 | static_cast<SessionStorageNamespaceImpl*>(it->second.get()); |
| 1225 | session_storage_namespace_map_[it->first] = source_namespace->Clone(); |
| 1226 | } |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1227 | |
| 1228 | FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION); |
| 1229 | |
| 1230 | // Copy the max page id map from the old tab to the new tab. This ensures |
| 1231 | // that new and existing navigations in the tab's current SiteInstances |
| 1232 | // are identified properly. |
| 1233 | web_contents_->CopyMaxPageIDsFrom(source.web_contents()); |
| 1234 | } |
| 1235 | |
| 1236 | void NavigationControllerImpl::CopyStateFromAndPrune( |
| 1237 | NavigationController* temp) { |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1238 | // It is up to callers to check the invariants before calling this. |
| 1239 | CHECK(CanPruneAllButVisible()); |
| 1240 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1241 | NavigationControllerImpl* source = |
| 1242 | static_cast<NavigationControllerImpl*>(temp); |
| 1243 | // The SiteInstance and page_id of the last committed entry needs to be |
| 1244 | // remembered at this point, in case there is only one committed entry |
| 1245 | // and it is pruned. We use a scoped_refptr to ensure the SiteInstance |
| 1246 | // can't be freed during this time period. |
| 1247 | NavigationEntryImpl* last_committed = |
| 1248 | NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()); |
| 1249 | scoped_refptr<SiteInstance> site_instance( |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1250 | last_committed->site_instance()); |
| 1251 | int32 minimum_page_id = last_committed->GetPageID(); |
| 1252 | int32 max_page_id = |
| 1253 | web_contents_->GetMaxPageIDForSiteInstance(site_instance.get()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1254 | |
| 1255 | // Remove all the entries leaving the active entry. |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1256 | PruneAllButVisibleInternal(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1257 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1258 | // We now have one entry, possibly with a new pending entry. Ensure that |
| 1259 | // adding the entries from source won't put us over the limit. |
| 1260 | DCHECK_EQ(1, GetEntryCount()); |
| 1261 | source->PruneOldestEntryIfFull(); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1262 | |
| 1263 | // Insert the entries from source. Don't use source->GetCurrentEntryIndex as |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1264 | // we don't want to copy over the transient entry. Ignore any pending entry, |
| 1265 | // since it has not committed in source. |
| 1266 | int max_source_index = source->last_committed_entry_index_; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1267 | if (max_source_index == -1) |
| 1268 | max_source_index = source->GetEntryCount(); |
| 1269 | else |
| 1270 | max_source_index++; |
| 1271 | InsertEntriesFrom(*source, max_source_index); |
| 1272 | |
| 1273 | // Adjust indices such that the last entry and pending are at the end now. |
| 1274 | last_committed_entry_index_ = GetEntryCount() - 1; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1275 | |
| 1276 | web_contents_->SetHistoryLengthAndPrune(site_instance.get(), |
| 1277 | max_source_index, |
| 1278 | minimum_page_id); |
| 1279 | |
| 1280 | // Copy the max page id map from the old tab to the new tab. This ensures |
| 1281 | // that new and existing navigations in the tab's current SiteInstances |
| 1282 | // are identified properly. |
| 1283 | web_contents_->CopyMaxPageIDsFrom(source->web_contents()); |
| 1284 | |
| 1285 | // If there is a last committed entry, be sure to include it in the new |
| 1286 | // max page ID map. |
| 1287 | if (max_page_id > -1) { |
| 1288 | web_contents_->UpdateMaxPageIDForSiteInstance(site_instance.get(), |
| 1289 | max_page_id); |
| 1290 | } |
| 1291 | } |
| 1292 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1293 | bool NavigationControllerImpl::CanPruneAllButVisible() { |
| 1294 | // If there is no last committed entry, we cannot prune. Even if there is a |
| 1295 | // pending entry, it may not commit, leaving this WebContents blank, despite |
| 1296 | // possibly giving it new entries via CopyStateFromAndPrune. |
| 1297 | if (last_committed_entry_index_ == -1) |
| 1298 | return false; |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1299 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1300 | // We cannot prune if there is a pending entry at an existing entry index. |
| 1301 | // It may not commit, so we have to keep the last committed entry, and thus |
| 1302 | // there is no sensible place to keep the pending entry. It is ok to have |
| 1303 | // a new pending entry, which can optionally commit as a new navigation. |
| 1304 | if (pending_entry_index_ != -1) |
| 1305 | return false; |
| 1306 | |
| 1307 | // We should not prune if we are currently showing a transient entry. |
| 1308 | if (transient_entry_index_ != -1) |
| 1309 | return false; |
| 1310 | |
| 1311 | return true; |
| 1312 | } |
| 1313 | |
| 1314 | void NavigationControllerImpl::PruneAllButVisible() { |
| 1315 | PruneAllButVisibleInternal(); |
| 1316 | |
| 1317 | // We should still have a last committed entry. |
| 1318 | DCHECK_NE(-1, last_committed_entry_index_); |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1319 | |
| 1320 | NavigationEntryImpl* entry = |
| 1321 | NavigationEntryImpl::FromNavigationEntry(GetActiveEntry()); |
| 1322 | // We pass 0 instead of GetEntryCount() for the history_length parameter of |
| 1323 | // SetHistoryLengthAndPrune, because it will create history_length additional |
| 1324 | // history entries. |
| 1325 | // TODO(jochen): This API is confusing and we should clean it up. |
| 1326 | // http://crbug.com/178491 |
| 1327 | web_contents_->SetHistoryLengthAndPrune( |
| 1328 | entry->site_instance(), 0, entry->GetPageID()); |
| 1329 | } |
| 1330 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1331 | void NavigationControllerImpl::PruneAllButVisibleInternal() { |
| 1332 | // It is up to callers to check the invariants before calling this. |
| 1333 | CHECK(CanPruneAllButVisible()); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1334 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1335 | // Erase all entries but the last committed entry. There may still be a |
| 1336 | // new pending entry after this. |
| 1337 | entries_.erase(entries_.begin(), |
| 1338 | entries_.begin() + last_committed_entry_index_); |
| 1339 | entries_.erase(entries_.begin() + 1, entries_.end()); |
| 1340 | last_committed_entry_index_ = 0; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1341 | } |
| 1342 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1343 | void NavigationControllerImpl::ClearAllScreenshots() { |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 1344 | screenshot_manager_->ClearAllScreenshots(); |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1345 | } |
| 1346 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1347 | void NavigationControllerImpl::SetSessionStorageNamespace( |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 1348 | const std::string& partition_id, |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1349 | SessionStorageNamespace* session_storage_namespace) { |
| 1350 | if (!session_storage_namespace) |
| 1351 | return; |
| 1352 | |
| 1353 | // We can't overwrite an existing SessionStorage without violating spec. |
| 1354 | // Attempts to do so may give a tab access to another tab's session storage |
| 1355 | // so die hard on an error. |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 1356 | bool successful_insert = session_storage_namespace_map_.insert( |
| 1357 | make_pair(partition_id, |
| 1358 | static_cast<SessionStorageNamespaceImpl*>( |
| 1359 | session_storage_namespace))) |
| 1360 | .second; |
| 1361 | CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace"; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1362 | } |
| 1363 | |
| 1364 | void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) { |
| 1365 | max_restored_page_id_ = max_id; |
| 1366 | } |
| 1367 | |
| 1368 | int32 NavigationControllerImpl::GetMaxRestoredPageID() const { |
| 1369 | return max_restored_page_id_; |
| 1370 | } |
| 1371 | |
| 1372 | SessionStorageNamespace* |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 1373 | NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) { |
| 1374 | std::string partition_id; |
| 1375 | if (instance) { |
| 1376 | // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove |
| 1377 | // this if statement so |instance| must not be NULL. |
| 1378 | partition_id = |
| 1379 | GetContentClient()->browser()->GetStoragePartitionIdForSite( |
| 1380 | browser_context_, instance->GetSiteURL()); |
| 1381 | } |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1382 | |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 1383 | SessionStorageNamespaceMap::const_iterator it = |
| 1384 | session_storage_namespace_map_.find(partition_id); |
| 1385 | if (it != session_storage_namespace_map_.end()) |
| 1386 | return it->second.get(); |
| 1387 | |
| 1388 | // Create one if no one has accessed session storage for this partition yet. |
| 1389 | // |
| 1390 | // TODO(ajwong): Should this use the |partition_id| directly rather than |
| 1391 | // re-lookup via |instance|? http://crbug.com/142685 |
| 1392 | StoragePartition* partition = |
| 1393 | BrowserContext::GetStoragePartition(browser_context_, instance); |
| 1394 | SessionStorageNamespaceImpl* session_storage_namespace = |
| 1395 | new SessionStorageNamespaceImpl( |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 1396 | static_cast<DOMStorageContextWrapper*>( |
Ben Murdoch | ca12bfa | 2013-07-23 11:17:05 +0100 | [diff] [blame] | 1397 | partition->GetDOMStorageContext())); |
| 1398 | session_storage_namespace_map_[partition_id] = session_storage_namespace; |
| 1399 | |
| 1400 | return session_storage_namespace; |
| 1401 | } |
| 1402 | |
| 1403 | SessionStorageNamespace* |
| 1404 | NavigationControllerImpl::GetDefaultSessionStorageNamespace() { |
| 1405 | // TODO(ajwong): Remove if statement in GetSessionStorageNamespace(). |
| 1406 | return GetSessionStorageNamespace(NULL); |
| 1407 | } |
| 1408 | |
| 1409 | const SessionStorageNamespaceMap& |
| 1410 | NavigationControllerImpl::GetSessionStorageNamespaceMap() const { |
| 1411 | return session_storage_namespace_map_; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1412 | } |
| 1413 | |
| 1414 | bool NavigationControllerImpl::NeedsReload() const { |
| 1415 | return needs_reload_; |
| 1416 | } |
| 1417 | |
| 1418 | void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) { |
| 1419 | DCHECK(index < GetEntryCount()); |
| 1420 | DCHECK(index != last_committed_entry_index_); |
| 1421 | |
| 1422 | DiscardNonCommittedEntries(); |
| 1423 | |
| 1424 | entries_.erase(entries_.begin() + index); |
| 1425 | if (last_committed_entry_index_ > index) |
| 1426 | last_committed_entry_index_--; |
| 1427 | } |
| 1428 | |
| 1429 | void NavigationControllerImpl::DiscardNonCommittedEntries() { |
| 1430 | bool transient = transient_entry_index_ != -1; |
| 1431 | DiscardNonCommittedEntriesInternal(); |
| 1432 | |
| 1433 | // If there was a transient entry, invalidate everything so the new active |
| 1434 | // entry state is shown. |
| 1435 | if (transient) { |
| 1436 | web_contents_->NotifyNavigationStateChanged(kInvalidateAll); |
| 1437 | } |
| 1438 | } |
| 1439 | |
| 1440 | NavigationEntry* NavigationControllerImpl::GetPendingEntry() const { |
| 1441 | return pending_entry_; |
| 1442 | } |
| 1443 | |
| 1444 | int NavigationControllerImpl::GetPendingEntryIndex() const { |
| 1445 | return pending_entry_index_; |
| 1446 | } |
| 1447 | |
| 1448 | void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry, |
| 1449 | bool replace) { |
| 1450 | DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME); |
| 1451 | |
| 1452 | // Copy the pending entry's unique ID to the committed entry. |
| 1453 | // I don't know if pending_entry_index_ can be other than -1 here. |
| 1454 | const NavigationEntryImpl* const pending_entry = |
| 1455 | (pending_entry_index_ == -1) ? |
| 1456 | pending_entry_ : entries_[pending_entry_index_].get(); |
| 1457 | if (pending_entry) |
| 1458 | entry->set_unique_id(pending_entry->GetUniqueID()); |
| 1459 | |
| 1460 | DiscardNonCommittedEntriesInternal(); |
| 1461 | |
| 1462 | int current_size = static_cast<int>(entries_.size()); |
| 1463 | |
| 1464 | if (current_size > 0) { |
| 1465 | // Prune any entries which are in front of the current entry. |
| 1466 | // Also prune the current entry if we are to replace the current entry. |
| 1467 | // last_committed_entry_index_ must be updated here since calls to |
| 1468 | // NotifyPrunedEntries() below may re-enter and we must make sure |
| 1469 | // last_committed_entry_index_ is not left in an invalid state. |
| 1470 | if (replace) |
| 1471 | --last_committed_entry_index_; |
| 1472 | |
| 1473 | int num_pruned = 0; |
| 1474 | while (last_committed_entry_index_ < (current_size - 1)) { |
| 1475 | num_pruned++; |
| 1476 | entries_.pop_back(); |
| 1477 | current_size--; |
| 1478 | } |
| 1479 | if (num_pruned > 0) // Only notify if we did prune something. |
| 1480 | NotifyPrunedEntries(this, false, num_pruned); |
| 1481 | } |
| 1482 | |
| 1483 | PruneOldestEntryIfFull(); |
| 1484 | |
| 1485 | entries_.push_back(linked_ptr<NavigationEntryImpl>(entry)); |
| 1486 | last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1; |
| 1487 | |
| 1488 | // This is a new page ID, so we need everybody to know about it. |
| 1489 | web_contents_->UpdateMaxPageID(entry->GetPageID()); |
| 1490 | } |
| 1491 | |
| 1492 | void NavigationControllerImpl::PruneOldestEntryIfFull() { |
| 1493 | if (entries_.size() >= max_entry_count()) { |
| 1494 | DCHECK_EQ(max_entry_count(), entries_.size()); |
Torne (Richard Coles) | a93a17c | 2013-05-15 11:34:50 +0100 | [diff] [blame] | 1495 | DCHECK_GT(last_committed_entry_index_, 0); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1496 | RemoveEntryAtIndex(0); |
| 1497 | NotifyPrunedEntries(this, true, 1); |
| 1498 | } |
| 1499 | } |
| 1500 | |
| 1501 | void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) { |
| 1502 | needs_reload_ = false; |
| 1503 | |
| 1504 | // If we were navigating to a slow-to-commit page, and the user performs |
| 1505 | // a session history navigation to the last committed page, RenderViewHost |
| 1506 | // will force the throbber to start, but WebKit will essentially ignore the |
| 1507 | // navigation, and won't send a message to stop the throbber. To prevent this |
| 1508 | // from happening, we drop the navigation here and stop the slow-to-commit |
| 1509 | // page from loading (which would normally happen during the navigation). |
| 1510 | if (pending_entry_index_ != -1 && |
| 1511 | pending_entry_index_ == last_committed_entry_index_ && |
| 1512 | (entries_[pending_entry_index_]->restore_type() == |
| 1513 | NavigationEntryImpl::RESTORE_NONE) && |
| 1514 | (entries_[pending_entry_index_]->GetTransitionType() & |
| 1515 | PAGE_TRANSITION_FORWARD_BACK)) { |
| 1516 | web_contents_->Stop(); |
| 1517 | |
| 1518 | // If an interstitial page is showing, we want to close it to get back |
| 1519 | // to what was showing before. |
| 1520 | if (web_contents_->GetInterstitialPage()) |
| 1521 | web_contents_->GetInterstitialPage()->DontProceed(); |
| 1522 | |
| 1523 | DiscardNonCommittedEntries(); |
| 1524 | return; |
| 1525 | } |
| 1526 | |
| 1527 | // If an interstitial page is showing, the previous renderer is blocked and |
| 1528 | // cannot make new requests. Unblock (and disable) it to allow this |
| 1529 | // navigation to succeed. The interstitial will stay visible until the |
| 1530 | // resulting DidNavigate. |
| 1531 | if (web_contents_->GetInterstitialPage()) { |
| 1532 | static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())-> |
| 1533 | CancelForNavigation(); |
| 1534 | } |
| 1535 | |
| 1536 | // For session history navigations only the pending_entry_index_ is set. |
| 1537 | if (!pending_entry_) { |
| 1538 | DCHECK_NE(pending_entry_index_, -1); |
| 1539 | pending_entry_ = entries_[pending_entry_index_].get(); |
| 1540 | } |
| 1541 | |
| 1542 | if (!web_contents_->NavigateToPendingEntry(reload_type)) |
| 1543 | DiscardNonCommittedEntries(); |
| 1544 | |
| 1545 | // If the entry is being restored and doesn't have a SiteInstance yet, fill |
| 1546 | // it in now that we know. This allows us to find the entry when it commits. |
| 1547 | // This works for browser-initiated navigations. We handle renderer-initiated |
| 1548 | // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset. |
| 1549 | if (pending_entry_ && !pending_entry_->site_instance() && |
| 1550 | pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) { |
| 1551 | pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>( |
| 1552 | web_contents_->GetPendingSiteInstance())); |
| 1553 | pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE); |
| 1554 | } |
| 1555 | } |
| 1556 | |
| 1557 | void NavigationControllerImpl::NotifyNavigationEntryCommitted( |
| 1558 | LoadCommittedDetails* details) { |
| 1559 | details->entry = GetActiveEntry(); |
| 1560 | NotificationDetails notification_details = |
| 1561 | Details<LoadCommittedDetails>(details); |
| 1562 | |
| 1563 | // We need to notify the ssl_manager_ before the web_contents_ so the |
| 1564 | // location bar will have up-to-date information about the security style |
| 1565 | // when it wants to draw. See http://crbug.com/11157 |
| 1566 | ssl_manager_.DidCommitProvisionalLoad(notification_details); |
| 1567 | |
| 1568 | // TODO(pkasting): http://b/1113079 Probably these explicit notification paths |
| 1569 | // should be removed, and interested parties should just listen for the |
| 1570 | // notification below instead. |
| 1571 | web_contents_->NotifyNavigationStateChanged(kInvalidateAll); |
| 1572 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 1573 | web_contents_->NotifyNavigationEntryCommitted(*details); |
| 1574 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1575 | NotificationService::current()->Notify( |
| 1576 | NOTIFICATION_NAV_ENTRY_COMMITTED, |
| 1577 | Source<NavigationController>(this), |
| 1578 | notification_details); |
| 1579 | } |
| 1580 | |
| 1581 | // static |
| 1582 | size_t NavigationControllerImpl::max_entry_count() { |
| 1583 | if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet) |
| 1584 | return max_entry_count_for_testing_; |
| 1585 | return kMaxSessionHistoryEntries; |
| 1586 | } |
| 1587 | |
| 1588 | void NavigationControllerImpl::SetActive(bool is_active) { |
| 1589 | if (is_active && needs_reload_) |
| 1590 | LoadIfNecessary(); |
| 1591 | } |
| 1592 | |
| 1593 | void NavigationControllerImpl::LoadIfNecessary() { |
| 1594 | if (!needs_reload_) |
| 1595 | return; |
| 1596 | |
| 1597 | // Calling Reload() results in ignoring state, and not loading. |
| 1598 | // Explicitly use NavigateToPendingEntry so that the renderer uses the |
| 1599 | // cached state. |
| 1600 | pending_entry_index_ = last_committed_entry_index_; |
| 1601 | NavigateToPendingEntry(NO_RELOAD); |
| 1602 | } |
| 1603 | |
| 1604 | void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry, |
| 1605 | int index) { |
| 1606 | EntryChangedDetails det; |
| 1607 | det.changed_entry = entry; |
| 1608 | det.index = index; |
| 1609 | NotificationService::current()->Notify( |
| 1610 | NOTIFICATION_NAV_ENTRY_CHANGED, |
| 1611 | Source<NavigationController>(this), |
| 1612 | Details<EntryChangedDetails>(&det)); |
| 1613 | } |
| 1614 | |
| 1615 | void NavigationControllerImpl::FinishRestore(int selected_index, |
| 1616 | RestoreType type) { |
| 1617 | DCHECK(selected_index >= 0 && selected_index < GetEntryCount()); |
| 1618 | ConfigureEntriesForRestore(&entries_, type); |
| 1619 | |
| 1620 | SetMaxRestoredPageID(static_cast<int32>(GetEntryCount())); |
| 1621 | |
| 1622 | last_committed_entry_index_ = selected_index; |
| 1623 | } |
| 1624 | |
| 1625 | void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() { |
| 1626 | if (pending_entry_index_ == -1) |
| 1627 | delete pending_entry_; |
| 1628 | pending_entry_ = NULL; |
| 1629 | pending_entry_index_ = -1; |
| 1630 | |
| 1631 | DiscardTransientEntry(); |
| 1632 | } |
| 1633 | |
| 1634 | void NavigationControllerImpl::DiscardTransientEntry() { |
| 1635 | if (transient_entry_index_ == -1) |
| 1636 | return; |
| 1637 | entries_.erase(entries_.begin() + transient_entry_index_); |
| 1638 | if (last_committed_entry_index_ > transient_entry_index_) |
| 1639 | last_committed_entry_index_--; |
| 1640 | transient_entry_index_ = -1; |
| 1641 | } |
| 1642 | |
| 1643 | int NavigationControllerImpl::GetEntryIndexWithPageID( |
| 1644 | SiteInstance* instance, int32 page_id) const { |
| 1645 | for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) { |
| 1646 | if ((entries_[i]->site_instance() == instance) && |
| 1647 | (entries_[i]->GetPageID() == page_id)) |
| 1648 | return i; |
| 1649 | } |
| 1650 | return -1; |
| 1651 | } |
| 1652 | |
| 1653 | NavigationEntry* NavigationControllerImpl::GetTransientEntry() const { |
| 1654 | if (transient_entry_index_ == -1) |
| 1655 | return NULL; |
| 1656 | return entries_[transient_entry_index_].get(); |
| 1657 | } |
| 1658 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 1659 | void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) { |
| 1660 | // Discard any current transient entry, we can only have one at a time. |
| 1661 | int index = 0; |
| 1662 | if (last_committed_entry_index_ != -1) |
| 1663 | index = last_committed_entry_index_ + 1; |
| 1664 | DiscardTransientEntry(); |
| 1665 | entries_.insert( |
| 1666 | entries_.begin() + index, linked_ptr<NavigationEntryImpl>( |
| 1667 | NavigationEntryImpl::FromNavigationEntry(entry))); |
| 1668 | transient_entry_index_ = index; |
| 1669 | web_contents_->NotifyNavigationStateChanged(kInvalidateAll); |
| 1670 | } |
| 1671 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1672 | void NavigationControllerImpl::InsertEntriesFrom( |
| 1673 | const NavigationControllerImpl& source, |
| 1674 | int max_index) { |
| 1675 | DCHECK_LE(max_index, source.GetEntryCount()); |
| 1676 | size_t insert_index = 0; |
| 1677 | for (int i = 0; i < max_index; i++) { |
| 1678 | // When cloning a tab, copy all entries except interstitial pages |
| 1679 | if (source.entries_[i].get()->GetPageType() != |
| 1680 | PAGE_TYPE_INTERSTITIAL) { |
| 1681 | entries_.insert(entries_.begin() + insert_index++, |
| 1682 | linked_ptr<NavigationEntryImpl>( |
| 1683 | new NavigationEntryImpl(*source.entries_[i]))); |
| 1684 | } |
| 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | void NavigationControllerImpl::SetGetTimestampCallbackForTest( |
| 1689 | const base::Callback<base::Time()>& get_timestamp_callback) { |
| 1690 | get_timestamp_callback_ = get_timestamp_callback; |
| 1691 | } |
| 1692 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1693 | } // namespace content |