blob: 49c40764bc307278ff4d11668ab4762e838205b5 [file] [log] [blame]
[email protected]91854cd2012-01-10 19:43:571// Copyright (c) 2012 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
[email protected]d202a7c2012-01-04 07:53:475#include "content/browser/tab_contents/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
initial.commit09911bf2008-07-26 23:55:297#include "base/file_util.h"
8#include "base/logging.h"
[email protected]b69934e2011-10-29 02:51:529#include "base/string_number_conversions.h" // Temporary
initial.commit09911bf2008-07-26 23:55:2910#include "base/string_util.h"
[email protected]b689fce72009-03-17 22:45:3411#include "base/time.h"
[email protected]252cad62010-08-18 18:33:5712#include "base/utf_string_conversions.h"
[email protected]b8148ac2011-07-13 22:03:2513#include "content/browser/browser_url_handler.h"
[email protected]419a0572011-04-18 22:21:4614#include "content/browser/child_process_security_policy.h"
[email protected]567812d2011-02-24 17:40:5015#include "content/browser/in_process_webkit/session_storage_namespace.h"
[email protected]b69934e2011-10-29 02:51:5216#include "content/browser/renderer_host/render_view_host.h" // Temporary
[email protected]b6583592012-01-25 19:52:3317#include "content/browser/site_instance_impl.h"
[email protected]0dd3a0ab2011-02-18 08:17:4418#include "content/browser/tab_contents/interstitial_page.h"
[email protected]10f417c52011-12-28 21:04:2319#include "content/browser/tab_contents/navigation_entry_impl.h"
[email protected]0dd3a0ab2011-02-18 08:17:4420#include "content/browser/tab_contents/tab_contents.h"
[email protected]0aed2f52011-03-23 18:06:3621#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1122#include "content/public/browser/browser_context.h"
[email protected]d9083482012-01-06 00:38:4623#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0024#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3825#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1626#include "content/public/browser/notification_types.h"
[email protected]7f6f44c2011-12-14 13:23:3827#include "content/public/browser/user_metrics.h"
[email protected]674bc592011-12-20 23:00:4228#include "content/public/browser/web_contents_delegate.h"
[email protected]7f6f44c2011-12-14 13:23:3829#include "content/public/common/content_constants.h"
[email protected]a23de8572009-06-03 02:16:3230#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1631#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3232#include "net/base/net_util.h"
[email protected]765b35502008-08-21 00:51:2033#include "webkit/glue/webkit_glue.h"
initial.commit09911bf2008-07-26 23:55:2934
[email protected]cdcb1dee2012-01-04 00:46:2035using content::BrowserContext;
[email protected]e5d549d2011-12-28 01:29:2036using content::GlobalRequestID;
[email protected]c5eed492012-01-04 17:07:5037using content::NavigationController;
[email protected]10f417c52011-12-28 21:04:2338using content::NavigationEntry;
39using content::NavigationEntryImpl;
[email protected]b6583592012-01-25 19:52:3340using content::SiteInstance;
[email protected]7f6f44c2011-12-14 13:23:3841using content::UserMetricsAction;
[email protected]fbc5e5f92012-01-02 06:08:3242using content::WebContents;
[email protected]7f6f44c2011-12-14 13:23:3843
[email protected]e9ba4472008-09-14 15:42:4344namespace {
45
[email protected]93f230e02011-06-01 14:40:0046const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3747
[email protected]e9ba4472008-09-14 15:42:4348// Invoked when entries have been pruned, or removed. For example, if the
49// current entries are [google, digg, yahoo], with the current entry google,
50// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4751void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4952 bool from_front,
53 int count) {
[email protected]8286f51a2011-05-31 17:39:1354 content::PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4955 details.from_front = from_front;
56 details.count = count;
[email protected]ad50def52011-10-19 23:17:0757 content::NotificationService::current()->Notify(
[email protected]432115822011-07-10 15:52:2758 content::NOTIFICATION_NAV_LIST_PRUNED,
[email protected]c5eed492012-01-04 17:07:5059 content::Source<NavigationController>(nav_controller),
[email protected]6c2381d2011-10-19 02:52:5360 content::Details<content::PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4361}
62
63// Ensure the given NavigationEntry has a valid state, so that WebKit does not
64// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3965//
[email protected]e9ba4472008-09-14 15:42:4366// An empty state is treated as a new navigation by WebKit, which would mean
67// losing the navigation entries and generating a new navigation entry after
68// this one. We don't want that. To avoid this we create a valid state which
69// WebKit will not treat as a new navigation.
[email protected]10f417c52011-12-28 21:04:2370void SetContentStateIfEmpty(NavigationEntryImpl* entry) {
[email protected]36fc0392011-12-25 03:59:5171 if (entry->GetContentState().empty()) {
72 entry->SetContentState(
73 webkit_glue::CreateHistoryStateForURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4374 }
75}
76
77// Configure all the NavigationEntries in entries for restore. This resets
78// the transition type to reload and makes sure the content state isn't empty.
79void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2380 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]5e369672009-11-03 23:48:3081 bool from_last_session) {
[email protected]e9ba4472008-09-14 15:42:4382 for (size_t i = 0; i < entries->size(); ++i) {
83 // Use a transition type of reload so that we don't incorrectly increase
84 // the typed count.
[email protected]022af742011-12-28 18:37:2585 (*entries)[i]->SetTransitionType(content::PAGE_TRANSITION_RELOAD);
[email protected]5e369672009-11-03 23:48:3086 (*entries)[i]->set_restore_type(from_last_session ?
[email protected]10f417c52011-12-28 21:04:2387 NavigationEntryImpl::RESTORE_LAST_SESSION :
88 NavigationEntryImpl::RESTORE_CURRENT_SESSION);
[email protected]e9ba4472008-09-14 15:42:4389 // NOTE(darin): This code is only needed for backwards compat.
90 SetContentStateIfEmpty((*entries)[i].get());
91 }
92}
93
94// See NavigationController::IsURLInPageNavigation for how this works and why.
95bool AreURLsInPageNavigation(const GURL& existing_url, const GURL& new_url) {
[email protected]192d8c5e2010-02-23 07:26:3296 if (existing_url == new_url || !new_url.has_ref()) {
97 // TODO(jcampan): what about when navigating back from a ref URL to the top
98 // non ref URL? Nothing is loaded in that case but we return false here.
99 // The user could also navigate from the ref URL to the non ref URL by
100 // entering the non ref URL in the location bar or through a bookmark, in
101 // which case there would be a load. I am not sure if the non-load/load
102 // scenarios can be differentiated with the TransitionType.
[email protected]e9ba4472008-09-14 15:42:43103 return false;
[email protected]192d8c5e2010-02-23 07:26:32104 }
[email protected]e9ba4472008-09-14 15:42:43105
106 url_canon::Replacements<char> replacements;
107 replacements.ClearRef();
108 return existing_url.ReplaceComponents(replacements) ==
109 new_url.ReplaceComponents(replacements);
110}
111
112} // namespace
113
[email protected]d202a7c2012-01-04 07:53:47114// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29115
[email protected]9b51970d2011-12-09 23:10:23116const size_t kMaxEntryCountForTestingNotSet = -1;
117
[email protected]765b35502008-08-21 00:51:20118// static
[email protected]d202a7c2012-01-04 07:53:47119size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23120 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20121
[email protected]cdcb1dee2012-01-04 00:46:20122 // Should Reload check for post data? The default is true, but is set to false
123// when testing.
124static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29125
[email protected]cdcb1dee2012-01-04 00:46:20126namespace content {
[email protected]71fde352011-12-29 03:29:56127// static
[email protected]cdcb1dee2012-01-04 00:46:20128NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56129 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20130 const Referrer& referrer,
131 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56132 bool is_renderer_initiated,
133 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20134 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56135 // Allow the browser URL handler to rewrite the URL. This will, for example,
136 // remove "view-source:" from the beginning of the URL to get the URL that
137 // will actually be loaded. This real URL won't be shown to the user, just
138 // used internally.
139 GURL loaded_url(url);
140 bool reverse_on_redirect = false;
141 BrowserURLHandler::GetInstance()->RewriteURLIfNecessary(
142 &loaded_url, browser_context, &reverse_on_redirect);
143
144 NavigationEntryImpl* entry = new NavigationEntryImpl(
145 NULL, // The site instance for tabs is sent on navigation
146 // (TabContents::GetSiteInstance).
147 -1,
148 loaded_url,
149 referrer,
150 string16(),
151 transition,
152 is_renderer_initiated);
153 entry->SetVirtualURL(url);
154 entry->set_user_typed_url(url);
155 entry->set_update_virtual_url_with_url(reverse_on_redirect);
156 entry->set_extra_headers(extra_headers);
157 return entry;
158}
159
[email protected]cdcb1dee2012-01-04 00:46:20160// static
161void NavigationController::DisablePromptOnRepost() {
162 g_check_for_repost = false;
163}
164
165} // namespace content
166
[email protected]d202a7c2012-01-04 07:53:47167NavigationControllerImpl::NavigationControllerImpl(
[email protected]6ee12c42010-09-14 09:36:07168 TabContents* contents,
[email protected]cdcb1dee2012-01-04 00:46:20169 BrowserContext* browser_context,
[email protected]6ee12c42010-09-14 09:36:07170 SessionStorageNamespace* session_storage_namespace)
[email protected]3d7474ff2011-07-27 17:47:37171 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20172 pending_entry_(NULL),
173 last_committed_entry_index_(-1),
174 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47175 transient_entry_index_(-1),
[email protected]9423d9412009-04-14 22:13:55176 tab_contents_(contents),
initial.commit09911bf2008-07-26 23:55:29177 max_restored_page_id_(-1),
[email protected]5d063842009-05-15 04:08:24178 ALLOW_THIS_IN_INITIALIZER_LIST(ssl_manager_(this)),
[email protected]38b8f4e2009-09-24 19:44:57179 needs_reload_(false),
[email protected]6ee12c42010-09-14 09:36:07180 session_storage_namespace_(session_storage_namespace),
[email protected]106a0812010-03-18 00:15:12181 pending_reload_(NO_RELOAD) {
[email protected]3d7474ff2011-07-27 17:47:37182 DCHECK(browser_context_);
[email protected]228d06592011-04-01 20:38:59183 if (!session_storage_namespace_) {
184 session_storage_namespace_ = new SessionStorageNamespace(
[email protected]3d7474ff2011-07-27 17:47:37185 browser_context_->GetWebKitContext());
[email protected]228d06592011-04-01 20:38:59186 }
initial.commit09911bf2008-07-26 23:55:29187}
188
[email protected]d202a7c2012-01-04 07:53:47189NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47190 DiscardNonCommittedEntriesInternal();
[email protected]c0993872008-08-21 19:59:44191
[email protected]ad50def52011-10-19 23:17:07192 content::NotificationService::current()->Notify(
[email protected]432115822011-07-10 15:52:27193 content::NOTIFICATION_TAB_CLOSED,
[email protected]c5eed492012-01-04 17:07:50194 content::Source<NavigationController>(this),
[email protected]ad50def52011-10-19 23:17:07195 content::NotificationService::NoDetails());
initial.commit09911bf2008-07-26 23:55:29196}
197
[email protected]d202a7c2012-01-04 07:53:47198WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]fbc5e5f92012-01-02 06:08:32199 return tab_contents_;
200}
201
[email protected]d202a7c2012-01-04 07:53:47202BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55203 return browser_context_;
204}
205
[email protected]d202a7c2012-01-04 07:53:47206void NavigationControllerImpl::SetBrowserContext(
207 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20208 browser_context_ = browser_context;
209}
210
[email protected]d202a7c2012-01-04 07:53:47211void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30212 int selected_navigation,
[email protected]03838e22011-06-06 15:27:14213 bool from_last_session,
[email protected]10f417c52011-12-28 21:04:23214 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57215 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55216 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57217 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14218 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57219
[email protected]ce3fa3c2009-04-20 19:55:57220 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04221 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23222 NavigationEntryImpl* entry =
223 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
224 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04225 }
[email protected]03838e22011-06-06 15:27:14226 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57227
228 // And finish the restore.
[email protected]5e369672009-11-03 23:48:30229 FinishRestore(selected_navigation, from_last_session);
[email protected]ce3fa3c2009-04-20 19:55:57230}
231
[email protected]d202a7c2012-01-04 07:53:47232void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16233 ReloadInternal(check_for_repost, RELOAD);
234}
[email protected]d202a7c2012-01-04 07:53:47235void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16236 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
237}
238
[email protected]d202a7c2012-01-04 07:53:47239void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
240 ReloadType reload_type) {
[email protected]cbab76d2008-10-13 22:42:47241 // Reloading a transient entry does nothing.
242 if (transient_entry_index_ != -1)
243 return;
244
245 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29246 int current_index = GetCurrentEntryIndex();
[email protected]106a0812010-03-18 00:15:12247 // If we are no where, then we can't reload. TODO(darin): We should add a
248 // CanReload method.
249 if (current_index == -1) {
250 return;
251 }
252
[email protected]cdcb1dee2012-01-04 00:46:20253 if (g_check_for_repost && check_for_repost &&
[email protected]36fc0392011-12-25 03:59:51254 GetEntryAtIndex(current_index)->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30255 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07256 // they really want to do this. If they do, the dialog will call us back
257 // with check_for_repost = false.
[email protected]ad50def52011-10-19 23:17:07258 content::NotificationService::current()->Notify(
[email protected]432115822011-07-10 15:52:27259 content::NOTIFICATION_REPOST_WARNING_SHOWN,
[email protected]c5eed492012-01-04 17:07:50260 content::Source<NavigationController>(this),
[email protected]ad50def52011-10-19 23:17:07261 content::NotificationService::NoDetails());
[email protected]965bb092010-04-09 11:59:02262
[email protected]106a0812010-03-18 00:15:12263 pending_reload_ = reload_type;
[email protected]9423d9412009-04-14 22:13:55264 tab_contents_->Activate();
[email protected]6934a702011-12-20 00:04:51265 tab_contents_->GetDelegate()->ShowRepostFormWarningDialog(tab_contents_);
initial.commit09911bf2008-07-26 23:55:29266 } else {
[email protected]cbab76d2008-10-13 22:42:47267 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20268
[email protected]bcd904482012-02-01 01:54:22269 NavigationEntryImpl* entry = entries_[current_index].get();
270 SiteInstanceImpl* site_instance = entry->site_instance();
271 DCHECK(site_instance);
[email protected]c3b3d952012-01-31 12:52:26272
[email protected]bcd904482012-02-01 01:54:22273 // If we are reloading an entry that no longer belongs to the current
274 // site instance (for example, refreshing a page for just installed app),
275 // the reload must happen in a new process.
276 // The new entry must have a new page_id and site instance, so it behaves
277 // as new navigation (which happens to clear forward history).
278 if (site_instance->HasWrongProcessForURL(entry->GetURL())) {
279 // Create a navigation entry that resembles the current one, but do not
280 // copy page id, site instance, and content state.
281 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
282 CreateNavigationEntry(
283 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
284 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26285
[email protected]bcd904482012-02-01 01:54:22286 nav_entry->set_is_cross_site_reload(true);
287 pending_entry_ = nav_entry;
288 } else {
289 pending_entry_index_ = current_index;
290
291 // The title of the page being reloaded might have been removed in the
292 // meanwhile, so we need to revert to the default title upon reload and
293 // invalidate the previously cached title (SetTitle will do both).
294 // See Chromium issue 96041.
295 entries_[pending_entry_index_]->SetTitle(string16());
296
297 entries_[pending_entry_index_]->SetTransitionType(
298 content::PAGE_TRANSITION_RELOAD);
299 }
300
[email protected]1ccb3568d2010-02-19 10:51:16301 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29302 }
303}
304
[email protected]d202a7c2012-01-04 07:53:47305void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12306 DCHECK(pending_reload_ != NO_RELOAD);
307 pending_reload_ = NO_RELOAD;
308}
309
[email protected]d202a7c2012-01-04 07:53:47310void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12311 if (pending_reload_ == NO_RELOAD) {
312 NOTREACHED();
313 } else {
314 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02315 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12316 }
317}
318
[email protected]d202a7c2012-01-04 07:53:47319bool NavigationControllerImpl::IsInitialNavigation() {
[email protected]c70f9b82010-04-21 07:31:11320 return last_document_loaded_.is_null();
321}
322
[email protected]d202a7c2012-01-04 07:53:47323NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33324 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11325 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20326 return (index != -1) ? entries_[index].get() : NULL;
327}
328
[email protected]d202a7c2012-01-04 07:53:47329void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]419a0572011-04-18 22:21:46330 // Don't navigate to URLs disabled by policy. This prevents showing the URL
331 // on the Omnibar when it is also going to be blocked by
332 // ChildProcessSecurityPolicy::CanRequestURL.
333 ChildProcessSecurityPolicy *policy =
334 ChildProcessSecurityPolicy::GetInstance();
[email protected]36fc0392011-12-25 03:59:51335 if (policy->IsDisabledScheme(entry->GetURL().scheme()) ||
336 policy->IsDisabledScheme(entry->GetVirtualURL().scheme())) {
[email protected]419a0572011-04-18 22:21:46337 VLOG(1) << "URL not loaded because the scheme is blocked by policy: "
[email protected]36fc0392011-12-25 03:59:51338 << entry->GetURL();
[email protected]419a0572011-04-18 22:21:46339 delete entry;
340 return;
341 }
342
[email protected]765b35502008-08-21 00:51:20343 // When navigating to a new page, we don't know for sure if we will actually
344 // end up leaving the current page. The new page load could for example
345 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]cbab76d2008-10-13 22:42:47346 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20347 pending_entry_ = entry;
[email protected]ad50def52011-10-19 23:17:07348 content::NotificationService::current()->Notify(
[email protected]432115822011-07-10 15:52:27349 content::NOTIFICATION_NAV_ENTRY_PENDING,
[email protected]c5eed492012-01-04 17:07:50350 content::Source<NavigationController>(this),
[email protected]10f417c52011-12-28 21:04:23351 content::Details<NavigationEntry>(entry));
[email protected]1ccb3568d2010-02-19 10:51:16352 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20353}
354
[email protected]d202a7c2012-01-04 07:53:47355NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47356 if (transient_entry_index_ != -1)
357 return entries_[transient_entry_index_].get();
358 if (pending_entry_)
359 return pending_entry_;
360 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20361}
362
[email protected]d202a7c2012-01-04 07:53:47363NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19364 if (transient_entry_index_ != -1)
365 return entries_[transient_entry_index_].get();
[email protected]e47ae9472011-10-13 19:48:34366 // Only return the pending_entry for new (non-history), browser-initiated
367 // navigations, in order to prevent URL spoof attacks.
368 // Ideally we would also show the pending entry's URL for new renderer-
369 // initiated navigations with no last committed entry (e.g., a link opening
370 // in a new tab), but an attacker can insert content into the about:blank
371 // page while the pending URL loads in that case.
372 if (pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51373 pending_entry_->GetPageID() == -1 &&
[email protected]e47ae9472011-10-13 19:48:34374 !pending_entry_->is_renderer_initiated())
[email protected]867e1f92011-08-30 19:01:19375 return pending_entry_;
376 return GetLastCommittedEntry();
377}
378
[email protected]d202a7c2012-01-04 07:53:47379int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47380 if (transient_entry_index_ != -1)
381 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20382 if (pending_entry_index_ != -1)
383 return pending_entry_index_;
384 return last_committed_entry_index_;
385}
386
[email protected]d202a7c2012-01-04 07:53:47387NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20388 if (last_committed_entry_index_ == -1)
389 return NULL;
390 return entries_[last_committed_entry_index_].get();
391}
392
[email protected]d202a7c2012-01-04 07:53:47393bool NavigationControllerImpl::CanViewSource() const {
[email protected]31682282010-01-15 18:05:16394 bool is_supported_mime_type = net::IsSupportedNonImageMimeType(
[email protected]0bfbf882011-12-22 18:19:27395 tab_contents_->GetContentsMimeType().c_str());
[email protected]10f417c52011-12-28 21:04:23396 NavigationEntry* active_entry = GetActiveEntry();
[email protected]31682282010-01-15 18:05:16397 return active_entry && !active_entry->IsViewSourceMode() &&
[email protected]0bfbf882011-12-22 18:19:27398 is_supported_mime_type && !tab_contents_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16399}
400
[email protected]d202a7c2012-01-04 07:53:47401int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55402 return last_committed_entry_index_;
403}
404
[email protected]d202a7c2012-01-04 07:53:47405int NavigationControllerImpl::GetEntryCount() const {
[email protected]a26023822011-12-29 00:23:55406 return static_cast<int>(entries_.size());
407}
408
[email protected]d202a7c2012-01-04 07:53:47409NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25410 int index) const {
411 return entries_.at(index).get();
412}
413
[email protected]d202a7c2012-01-04 07:53:47414NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25415 int offset) const {
[email protected]cbab76d2008-10-13 22:42:47416 int index = (transient_entry_index_ != -1) ?
417 transient_entry_index_ + offset :
418 last_committed_entry_index_ + offset;
[email protected]a26023822011-12-29 00:23:55419 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20420 return NULL;
421
422 return entries_[index].get();
423}
424
[email protected]d202a7c2012-01-04 07:53:47425bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20426 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
427}
428
[email protected]d202a7c2012-01-04 07:53:47429bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20430 int index = GetCurrentEntryIndex();
431 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
432}
433
[email protected]d202a7c2012-01-04 07:53:47434void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20435 if (!CanGoBack()) {
436 NOTREACHED();
437 return;
438 }
439
440 // Base the navigation on where we are now...
441 int current_index = GetCurrentEntryIndex();
442
[email protected]cbab76d2008-10-13 22:42:47443 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20444
445 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25446 entries_[pending_entry_index_]->SetTransitionType(
[email protected]2905f742011-10-13 03:51:58447 content::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51448 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]2905f742011-10-13 03:51:58449 content::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16450 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20451}
452
[email protected]d202a7c2012-01-04 07:53:47453void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20454 if (!CanGoForward()) {
455 NOTREACHED();
456 return;
457 }
458
[email protected]cbab76d2008-10-13 22:42:47459 bool transient = (transient_entry_index_ != -1);
460
[email protected]765b35502008-08-21 00:51:20461 // Base the navigation on where we are now...
462 int current_index = GetCurrentEntryIndex();
463
[email protected]cbab76d2008-10-13 22:42:47464 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20465
[email protected]cbab76d2008-10-13 22:42:47466 pending_entry_index_ = current_index;
467 // If there was a transient entry, we removed it making the current index
468 // the next page.
469 if (!transient)
470 pending_entry_index_++;
471
[email protected]022af742011-12-28 18:37:25472 entries_[pending_entry_index_]->SetTransitionType(
[email protected]2905f742011-10-13 03:51:58473 content::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51474 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]2905f742011-10-13 03:51:58475 content::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16476 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20477}
478
[email protected]d202a7c2012-01-04 07:53:47479void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20480 if (index < 0 || index >= static_cast<int>(entries_.size())) {
481 NOTREACHED();
482 return;
483 }
484
[email protected]cbab76d2008-10-13 22:42:47485 if (transient_entry_index_ != -1) {
486 if (index == transient_entry_index_) {
487 // Nothing to do when navigating to the transient.
488 return;
489 }
490 if (index > transient_entry_index_) {
491 // Removing the transient is goint to shift all entries by 1.
492 index--;
493 }
494 }
495
496 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20497
498 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25499 entries_[pending_entry_index_]->SetTransitionType(
[email protected]2905f742011-10-13 03:51:58500 content::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51501 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]2905f742011-10-13 03:51:58502 content::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16503 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20504}
505
[email protected]d202a7c2012-01-04 07:53:47506void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]cbab76d2008-10-13 22:42:47507 int index = (transient_entry_index_ != -1) ?
508 transient_entry_index_ + offset :
509 last_committed_entry_index_ + offset;
[email protected]a26023822011-12-29 00:23:55510 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20511 return;
512
513 GoToIndex(index);
514}
515
[email protected]d202a7c2012-01-04 07:53:47516void NavigationControllerImpl::RemoveEntryAtIndex(int index) {
[email protected]6a13a6c2011-12-20 21:47:12517 if (index == last_committed_entry_index_)
518 return;
519
[email protected]43032342011-03-21 14:10:31520 RemoveEntryAtIndexInternal(index);
[email protected]cbab76d2008-10-13 22:42:47521}
522
[email protected]d202a7c2012-01-04 07:53:47523void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23524 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32525 GURL new_virtual_url(new_url);
[email protected]f1eb87a2011-05-06 17:49:41526 if (BrowserURLHandler::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51527 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
528 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32529 }
530}
531
[email protected]d202a7c2012-01-04 07:53:47532void NavigationControllerImpl::AddTransientEntry(NavigationEntryImpl* entry) {
[email protected]cbab76d2008-10-13 22:42:47533 // Discard any current transient entry, we can only have one at a time.
534 int index = 0;
535 if (last_committed_entry_index_ != -1)
536 index = last_committed_entry_index_ + 1;
537 DiscardTransientEntry();
[email protected]10f417c52011-12-28 21:04:23538 entries_.insert(
539 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(entry));
[email protected]e1cd5452010-08-26 18:03:25540 transient_entry_index_ = index;
[email protected]93f230e02011-06-01 14:40:00541 tab_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:47542}
543
[email protected]d202a7c2012-01-04 07:53:47544void NavigationControllerImpl::TransferURL(
[email protected]4ad5d77d2011-12-03 02:00:48545 const GURL& url,
[email protected]95dacd02011-12-05 10:35:26546 const content::Referrer& referrer,
[email protected]4ad5d77d2011-12-03 02:00:48547 content::PageTransition transition,
548 const std::string& extra_headers,
549 const GlobalRequestID& transferred_global_request_id,
550 bool is_renderer_initiated) {
551 // The user initiated a load, we don't need to reload anymore.
552 needs_reload_ = false;
553
[email protected]71fde352011-12-29 03:29:56554 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
555 CreateNavigationEntry(
556 url, referrer, transition, is_renderer_initiated, extra_headers,
557 browser_context_));
[email protected]4ad5d77d2011-12-03 02:00:48558 entry->set_transferred_global_request_id(transferred_global_request_id);
559
560 LoadEntry(entry);
561}
562
[email protected]d202a7c2012-01-04 07:53:47563void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47564 const GURL& url,
[email protected]95dacd02011-12-05 10:35:26565 const content::Referrer& referrer,
[email protected]2905f742011-10-13 03:51:58566 content::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47567 const std::string& extra_headers) {
initial.commit09911bf2008-07-26 23:55:29568 // The user initiated a load, we don't need to reload anymore.
569 needs_reload_ = false;
570
[email protected]71fde352011-12-29 03:29:56571 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
572 CreateNavigationEntry(
573 url, referrer, transition, false, extra_headers, browser_context_));
[email protected]e47ae9472011-10-13 19:48:34574
575 LoadEntry(entry);
576}
577
[email protected]d202a7c2012-01-04 07:53:47578void NavigationControllerImpl::LoadURLFromRenderer(
[email protected]e47ae9472011-10-13 19:48:34579 const GURL& url,
[email protected]95dacd02011-12-05 10:35:26580 const content::Referrer& referrer,
[email protected]e47ae9472011-10-13 19:48:34581 content::PageTransition transition,
582 const std::string& extra_headers) {
583 // The user initiated a load, we don't need to reload anymore.
584 needs_reload_ = false;
585
[email protected]71fde352011-12-29 03:29:56586 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
587 CreateNavigationEntry(
588 url, referrer, transition, true, extra_headers, browser_context_));
initial.commit09911bf2008-07-26 23:55:29589
590 LoadEntry(entry);
591}
592
[email protected]d202a7c2012-01-04 07:53:47593void NavigationControllerImpl::DocumentLoadedInFrame() {
[email protected]09b8f82f2009-06-16 20:22:11594 last_document_loaded_ = base::TimeTicks::Now();
595}
596
[email protected]d202a7c2012-01-04 07:53:47597bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43598 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8286f51a2011-05-31 17:39:13599 content::LoadCommittedDetails* details) {
[email protected]4bf3522c2010-08-19 21:00:20600
[email protected]0e8db942008-09-24 21:21:48601 // Save the previous state before we clobber it.
602 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51603 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55604 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48605 } else {
606 details->previous_url = GURL();
607 details->previous_entry_index = -1;
608 }
[email protected]ecd9d8702008-08-28 22:10:17609
[email protected]77362eb2011-08-01 17:18:38610 // If we have a pending entry at this point, it should have a SiteInstance.
611 // Restored entries start out with a null SiteInstance, but we should have
612 // assigned one in NavigateToPendingEntry.
613 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43614
[email protected]bcd904482012-02-01 01:54:22615 // If we are doing a cross-site reload, we need to replace the existing
616 // navigation entry, not add another entry to the history. This has the side
617 // effect of removing forward browsing history, if such existed.
618 if (pending_entry_ != NULL) {
619 details->did_replace_entry = pending_entry_->is_cross_site_reload();
620 }
621
[email protected]192d8c5e2010-02-23 07:26:32622 // is_in_page must be computed before the entry gets committed.
623 details->is_in_page = IsURLInPageNavigation(params.url);
624
[email protected]e9ba4472008-09-14 15:42:43625 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48626 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20627
[email protected]0e8db942008-09-24 21:21:48628 switch (details->type) {
[email protected]610cbb82011-10-18 16:35:08629 case content::NAVIGATION_TYPE_NEW_PAGE:
[email protected]befd8d822009-07-01 04:51:47630 RendererDidNavigateToNewPage(params, &(details->did_replace_entry));
[email protected]e9ba4472008-09-14 15:42:43631 break;
[email protected]610cbb82011-10-18 16:35:08632 case content::NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43633 RendererDidNavigateToExistingPage(params);
634 break;
[email protected]610cbb82011-10-18 16:35:08635 case content::NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43636 RendererDidNavigateToSamePage(params);
637 break;
[email protected]610cbb82011-10-18 16:35:08638 case content::NAVIGATION_TYPE_IN_PAGE:
[email protected]befd8d822009-07-01 04:51:47639 RendererDidNavigateInPage(params, &(details->did_replace_entry));
[email protected]e9ba4472008-09-14 15:42:43640 break;
[email protected]610cbb82011-10-18 16:35:08641 case content::NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43642 RendererDidNavigateNewSubframe(params);
643 break;
[email protected]610cbb82011-10-18 16:35:08644 case content::NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43645 if (!RendererDidNavigateAutoSubframe(params))
646 return false;
647 break;
[email protected]610cbb82011-10-18 16:35:08648 case content::NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49649 // If a pending navigation was in progress, this canceled it. We should
650 // discard it and make sure it is removed from the URL bar. After that,
651 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43652 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49653 if (pending_entry_) {
654 DiscardNonCommittedEntries();
[email protected]93f230e02011-06-01 14:40:00655 tab_contents_->NotifyNavigationStateChanged(
[email protected]d9083482012-01-06 00:38:46656 content::INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49657 }
[email protected]e9ba4472008-09-14 15:42:43658 return false;
659 default:
660 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20661 }
662
[email protected]e9ba4472008-09-14 15:42:43663 // All committed entries should have nonempty content state so WebKit doesn't
664 // get confused when we go back to them (see the function for details).
[email protected]0f38dc4552011-02-25 11:24:00665 DCHECK(!params.content_state.empty());
[email protected]10f417c52011-12-28 21:04:23666 NavigationEntryImpl* active_entry =
667 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
[email protected]36fc0392011-12-25 03:59:51668 active_entry->SetContentState(params.content_state);
[email protected]765b35502008-08-21 00:51:20669
[email protected]e47ae9472011-10-13 19:48:34670 // Once committed, we do not need to track if the entry was initiated by
671 // the renderer.
672 active_entry->set_is_renderer_initiated(false);
673
[email protected]49bd30e62011-03-22 20:12:59674 // The active entry's SiteInstance should match our SiteInstance.
675 DCHECK(active_entry->site_instance() == tab_contents_->GetSiteInstance());
676
[email protected]e9ba4472008-09-14 15:42:43677 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00678 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58679 details->is_main_frame =
680 content::PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24681 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31682 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00683 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29684
[email protected]e9ba4472008-09-14 15:42:43685 return true;
initial.commit09911bf2008-07-26 23:55:29686}
687
[email protected]d202a7c2012-01-04 07:53:47688content::NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43689 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43690 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46691 // The renderer generates the page IDs, and so if it gives us the invalid
692 // page ID (-1) we know it didn't actually navigate. This happens in a few
693 // cases:
694 //
695 // - If a page makes a popup navigated to about blank, and then writes
696 // stuff like a subframe navigated to a real page. We'll get the commit
697 // for the subframe, but there won't be any commit for the outer page.
698 //
699 // - We were also getting these for failed loads (for example, bug 21849).
700 // The guess is that we get a "load commit" for the alternate error page,
701 // but that doesn't affect the page ID, so we get the "old" one, which
702 // could be invalid. This can also happen for a cross-site transition
703 // that causes us to swap processes. Then the error page load will be in
704 // a new process with no page IDs ever assigned (and hence a -1 value),
705 // yet the navigation controller still might have previous pages in its
706 // list.
707 //
708 // In these cases, there's nothing we can do with them, so ignore.
[email protected]610cbb82011-10-18 16:35:08709 return content::NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43710 }
711
[email protected]9423d9412009-04-14 22:13:55712 if (params.page_id > tab_contents_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43713 // Greater page IDs than we've ever seen before are new pages. We may or may
714 // not have a pending entry for the page, and this may or may not be the
715 // main frame.
[email protected]2905f742011-10-13 03:51:58716 if (content::PageTransitionIsMainFrame(params.transition))
[email protected]610cbb82011-10-18 16:35:08717 return content::NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09718
719 // When this is a new subframe navigation, we should have a committed page
720 // for which it's a suframe in. This may not be the case when an iframe is
721 // navigated on a popup navigated to about:blank (the iframe would be
722 // written into the popup by script on the main page). For these cases,
723 // there isn't any navigation stuff we can do, so just ignore it.
724 if (!GetLastCommittedEntry())
[email protected]610cbb82011-10-18 16:35:08725 return content::NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09726
727 // Valid subframe navigation.
[email protected]610cbb82011-10-18 16:35:08728 return content::NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43729 }
730
731 // Now we know that the notification is for an existing page. Find that entry.
732 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]9423d9412009-04-14 22:13:55733 tab_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43734 params.page_id);
735 if (existing_entry_index == -1) {
736 // The page was not found. It could have been pruned because of the limit on
737 // back/forward entries (not likely since we'll usually tell it to navigate
738 // to such entries). It could also mean that the renderer is smoking crack.
739 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46740
741 // Because the unknown entry has committed, we risk showing the wrong URL in
742 // release builds. Instead, we'll kill the renderer process to be safe.
743 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]7f6f44c2011-12-14 13:23:38744 content::RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52745
[email protected]7ec6f382011-11-11 01:28:17746 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10747 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
748 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17749 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52750 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17751 temp.append("#max");
752 temp.append(base::IntToString(tab_contents_->GetMaxPageID()));
753 temp.append("#frame");
754 temp.append(base::IntToString(params.frame_id));
755 temp.append("#ids");
756 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10757 // Append entry metadata (e.g., 3_7x):
758 // 3: page_id
759 // 7: SiteInstance ID, or N for null
760 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51761 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10762 temp.append("_");
763 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33764 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17765 else
[email protected]8c380582011-12-02 03:16:10766 temp.append("N");
767 if (entries_[i]->site_instance() != tab_contents_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17768 temp.append("x");
769 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52770 }
771 GURL url(temp);
[email protected]151a63d2011-12-20 22:32:52772 tab_contents_->GetRenderViewHost()->Send(new ViewMsg_TempCrashWithData(url));
[email protected]b69934e2011-10-29 02:51:52773 return content::NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43774 }
[email protected]10f417c52011-12-28 21:04:23775 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43776
[email protected]2905f742011-10-13 03:51:58777 if (!content::PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52778 // All manual subframes would get new IDs and were handled above, so we
779 // know this is auto. Since the current page was found in the navigation
780 // entry list, we're guaranteed to have a last committed entry.
781 DCHECK(GetLastCommittedEntry());
[email protected]610cbb82011-10-18 16:35:08782 return content::NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52783 }
784
785 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43786 if (pending_entry_ &&
[email protected]e9ba4472008-09-14 15:42:43787 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51788 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24789 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43790 // In this case, we have a pending entry for a URL but WebCore didn't do a
791 // new navigation. This happens when you press enter in the URL bar to
792 // reload. We will create a pending entry, but WebKit will convert it to
793 // a reload since it's the same page and not create a new entry for it
794 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24795 // this). If this matches the last committed entry, we want to just ignore
796 // the pending entry and go back to where we were (the "existing entry").
[email protected]610cbb82011-10-18 16:35:08797 return content::NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43798 }
799
[email protected]fc60f222008-12-18 17:36:54800 // Any toplevel navigations with the same base (minus the reference fragment)
801 // are in-page navigations. We weeded out subframe navigations above. Most of
802 // the time this doesn't matter since WebKit doesn't tell us about subframe
803 // navigations that don't actually navigate, but it can happen when there is
804 // an encoding override (it always sends a navigation request).
[email protected]36fc0392011-12-25 03:59:51805 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url))
[email protected]610cbb82011-10-18 16:35:08806 return content::NAVIGATION_TYPE_IN_PAGE;
[email protected]fc60f222008-12-18 17:36:54807
[email protected]e9ba4472008-09-14 15:42:43808 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09809 // (back/forward) navigation.
[email protected]610cbb82011-10-18 16:35:08810 return content::NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43811}
812
[email protected]d202a7c2012-01-04 07:53:47813bool NavigationControllerImpl::IsRedirect(
[email protected]09b8f82f2009-06-16 20:22:11814 const ViewHostMsg_FrameNavigate_Params& params) {
815 // For main frame transition, we judge by params.transition.
816 // Otherwise, by params.redirects.
[email protected]2905f742011-10-13 03:51:58817 if (content::PageTransitionIsMainFrame(params.transition)) {
818 return content::PageTransitionIsRedirect(params.transition);
[email protected]09b8f82f2009-06-16 20:22:11819 }
820 return params.redirects.size() > 1;
821}
822
[email protected]d202a7c2012-01-04 07:53:47823void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]befd8d822009-07-01 04:51:47824 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]10f417c52011-12-28 21:04:23825 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41826 bool update_virtual_url;
[email protected]e9ba4472008-09-14 15:42:43827 if (pending_entry_) {
828 // TODO(brettw) this assumes that the pending entry is appropriate for the
829 // new page that was just loaded. I don't think this is necessarily the
[email protected]49bd30e62011-03-22 20:12:59830 // case! We should have some more tracking to know for sure.
[email protected]10f417c52011-12-28 21:04:23831 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43832
833 // Don't use the page type from the pending entry. Some interstitial page
834 // may have set the type to interstitial. Once we commit, however, the page
835 // type must always be normal.
[email protected]66fdbd52011-10-18 17:08:53836 new_entry->set_page_type(content::PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:41837 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:43838 } else {
[email protected]10f417c52011-12-28 21:04:23839 new_entry = new NavigationEntryImpl;
[email protected]f1eb87a2011-05-06 17:49:41840 // When navigating to a new page, give the browser URL handler a chance to
841 // update the virtual URL based on the new URL. For example, this is needed
842 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
843 // the URL.
844 update_virtual_url = true;
[email protected]e9ba4472008-09-14 15:42:43845 }
846
[email protected]ad23a092011-12-28 07:02:04847 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:41848 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:32849 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:25850 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:51851 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:25852 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:33853 new_entry->set_site_instance(
854 static_cast<SiteInstanceImpl*>(tab_contents_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:51855 new_entry->SetHasPostData(params.is_post);
[email protected]e9ba4472008-09-14 15:42:43856
[email protected]befd8d822009-07-01 04:51:47857 InsertOrReplaceEntry(new_entry, *did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43858}
859
[email protected]d202a7c2012-01-04 07:53:47860void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:43861 const ViewHostMsg_FrameNavigate_Params& params) {
862 // We should only get here for main frame navigations.
[email protected]2905f742011-10-13 03:51:58863 DCHECK(content::PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:43864
865 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:09866 // guaranteed to exist by ClassifyNavigation, and we just need to update it
867 // with new information from the renderer.
[email protected]7f0005a2009-04-15 03:25:11868 int entry_index = GetEntryIndexWithPageID(tab_contents_->GetSiteInstance(),
869 params.page_id);
[email protected]e9ba4472008-09-14 15:42:43870 DCHECK(entry_index >= 0 &&
871 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:23872 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43873
874 // The URL may have changed due to redirects. The site instance will normally
875 // be the same except during session restore, when no site instance will be
876 // assigned.
[email protected]ad23a092011-12-28 07:02:04877 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:32878 if (entry->update_virtual_url_with_url())
879 UpdateVirtualURLToURL(entry, params.url);
[email protected]e9ba4472008-09-14 15:42:43880 DCHECK(entry->site_instance() == NULL ||
[email protected]9423d9412009-04-14 22:13:55881 entry->site_instance() == tab_contents_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:33882 entry->set_site_instance(
883 static_cast<SiteInstanceImpl*>(tab_contents_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:43884
[email protected]36fc0392011-12-25 03:59:51885 entry->SetHasPostData(params.is_post);
[email protected]d5a49e52010-01-08 03:01:41886
[email protected]e9ba4472008-09-14 15:42:43887 // The entry we found in the list might be pending if the user hit
888 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:59889 // list, we can just discard the pending pointer). We should also discard the
890 // pending entry if it corresponds to a different navigation, since that one
891 // is now likely canceled. If it is not canceled, we will treat it as a new
892 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:43893 //
894 // Note that we need to use the "internal" version since we don't want to
895 // actually change any other state, just kill the pointer.
[email protected]49bd30e62011-03-22 20:12:59896 if (pending_entry_)
[email protected]cbab76d2008-10-13 22:42:47897 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:39898
[email protected]80858db52009-10-15 00:35:18899 // If a transient entry was removed, the indices might have changed, so we
900 // have to query the entry index again.
901 last_committed_entry_index_ =
902 GetEntryIndexWithPageID(tab_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:43903}
904
[email protected]d202a7c2012-01-04 07:53:47905void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:43906 const ViewHostMsg_FrameNavigate_Params& params) {
907 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:09908 // entry for this page ID. This entry is guaranteed to exist by
909 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:23910 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
911 tab_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:43912
913 // We assign the entry's unique ID to be that of the new one. Since this is
914 // always the result of a user action, we want to dismiss infobars, etc. like
915 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:51916 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:43917
[email protected]a0e69262009-06-03 19:08:48918 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:32919 if (existing_entry->update_virtual_url_with_url())
920 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:04921 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:48922
[email protected]cbab76d2008-10-13 22:42:47923 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:43924}
925
[email protected]d202a7c2012-01-04 07:53:47926void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:47927 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]2905f742011-10-13 03:51:58928 DCHECK(content::PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:43929 "WebKit should only tell us about in-page navs for the main frame.";
930 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:23931 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
932 tab_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:43933
934 // Reference fragment navigation. We're guaranteed to have the last_committed
935 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:03936 // reference fragments, of course). We'll update the URL of the existing
937 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:04938 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:03939 if (existing_entry->update_virtual_url_with_url())
940 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:43941
942 // This replaces the existing entry since the page ID didn't change.
943 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:03944
945 if (pending_entry_)
946 DiscardNonCommittedEntriesInternal();
947
948 // If a transient entry was removed, the indices might have changed, so we
949 // have to query the entry index again.
950 last_committed_entry_index_ =
951 GetEntryIndexWithPageID(tab_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:43952}
953
[email protected]d202a7c2012-01-04 07:53:47954void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:43955 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]2905f742011-10-13 03:51:58956 if (content::PageTransitionStripQualifier(params.transition) ==
957 content::PAGE_TRANSITION_AUTO_SUBFRAME) {
[email protected]09b8f82f2009-06-16 20:22:11958 // This is not user-initiated. Ignore.
959 return;
960 }
[email protected]09b8f82f2009-06-16 20:22:11961
[email protected]e9ba4472008-09-14 15:42:43962 // Manual subframe navigations just get the current entry cloned so the user
963 // can go back or forward to it. The actual subframe information will be
964 // stored in the page state for each of those entries. This happens out of
965 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:09966 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
967 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:23968 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
969 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:51970 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:45971 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:43972}
973
[email protected]d202a7c2012-01-04 07:53:47974bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:43975 const ViewHostMsg_FrameNavigate_Params& params) {
976 // We're guaranteed to have a previously committed entry, and we now need to
977 // handle navigation inside of a subframe in it without creating a new entry.
978 DCHECK(GetLastCommittedEntry());
979
980 // Handle the case where we're navigating back/forward to a previous subframe
981 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
982 // header file. In case "1." this will be a NOP.
983 int entry_index = GetEntryIndexWithPageID(
[email protected]9423d9412009-04-14 22:13:55984 tab_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43985 params.page_id);
986 if (entry_index < 0 ||
987 entry_index >= static_cast<int>(entries_.size())) {
988 NOTREACHED();
989 return false;
990 }
991
992 // Update the current navigation entry in case we're going back/forward.
993 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:43994 last_committed_entry_index_ = entry_index;
[email protected]e9ba4472008-09-14 15:42:43995 return true;
996 }
997 return false;
998}
999
[email protected]d202a7c2012-01-04 07:53:471000int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231001 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201002 const NavigationEntries::const_iterator i(std::find(
1003 entries_.begin(),
1004 entries_.end(),
1005 entry));
1006 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1007}
1008
[email protected]d202a7c2012-01-04 07:53:471009bool NavigationControllerImpl::IsURLInPageNavigation(const GURL& url) const {
[email protected]10f417c52011-12-28 21:04:231010 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431011 if (!last_committed)
1012 return false;
[email protected]36fc0392011-12-25 03:59:511013 return AreURLsInPageNavigation(last_committed->GetURL(), url);
[email protected]e9ba4472008-09-14 15:42:431014}
1015
[email protected]d202a7c2012-01-04 07:53:471016void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501017 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471018 const NavigationControllerImpl& source =
1019 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571020 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551021 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571022
[email protected]a26023822011-12-29 00:23:551023 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571024 return; // Nothing new to do.
1025
1026 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551027 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571028
[email protected]6ee12c42010-09-14 09:36:071029 session_storage_namespace_ = source.session_storage_namespace_->Clone();
[email protected]4e6419c2010-01-15 04:50:341030
[email protected]5e369672009-11-03 23:48:301031 FinishRestore(source.last_committed_entry_index_, false);
[email protected]91854cd2012-01-10 19:43:571032
1033 // Copy the max page id map from the old tab to the new tab. This ensures
1034 // that new and existing navigations in the tab's current SiteInstances
1035 // are identified properly.
1036 tab_contents_->CopyMaxPageIDsFrom(source.tab_contents());
[email protected]ce3fa3c2009-04-20 19:55:571037}
1038
[email protected]d202a7c2012-01-04 07:53:471039void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501040 NavigationController* temp) {
[email protected]d202a7c2012-01-04 07:53:471041 NavigationControllerImpl* source =
1042 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191043 // The SiteInstance and page_id of the last committed entry needs to be
1044 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571045 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1046 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231047 NavigationEntryImpl* last_committed =
1048 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571049 scoped_refptr<SiteInstance> site_instance(
1050 last_committed ? last_committed->site_instance() : NULL);
[email protected]36fc0392011-12-25 03:59:511051 int32 minimum_page_id = last_committed ? last_committed->GetPageID() : -1;
[email protected]91854cd2012-01-10 19:43:571052 int32 max_page_id = last_committed ?
1053 tab_contents_->GetMaxPageIDForSiteInstance(site_instance.get()) : -1;
[email protected]9e1ad4b2011-08-14 16:49:191054
[email protected]e1cd5452010-08-26 18:03:251055 // This code is intended for use when the last entry is the active entry.
[email protected]a26023822011-12-29 00:23:551056 DCHECK(
1057 (transient_entry_index_ != -1 &&
[email protected]91854cd2012-01-10 19:43:571058 transient_entry_index_ == GetEntryCount() - 1) ||
[email protected]a26023822011-12-29 00:23:551059 (pending_entry_ && (pending_entry_index_ == -1 ||
1060 pending_entry_index_ == GetEntryCount() - 1)) ||
1061 (!pending_entry_ && last_committed_entry_index_ == GetEntryCount() - 1));
[email protected]e1cd5452010-08-26 18:03:251062
1063 // Remove all the entries leaving the active entry.
1064 PruneAllButActive();
1065
[email protected]47e020a2010-10-15 14:43:371066 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]e1cd5452010-08-26 18:03:251067 // we don't want to copy over the transient entry.
[email protected]47e020a2010-10-15 14:43:371068 int max_source_index = source->pending_entry_index_ != -1 ?
1069 source->pending_entry_index_ : source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251070 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551071 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251072 else
1073 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371074 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251075
1076 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551077 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251078 if (pending_entry_index_ != -1)
[email protected]a26023822011-12-29 00:23:551079 pending_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251080 if (transient_entry_index_ != -1) {
1081 // There's a transient entry. In this case we want the last committed to
1082 // point to the previous entry.
[email protected]a26023822011-12-29 00:23:551083 transient_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251084 if (last_committed_entry_index_ != -1)
1085 last_committed_entry_index_--;
1086 }
[email protected]796931a92011-08-10 01:32:141087
[email protected]91854cd2012-01-10 19:43:571088 tab_contents_->SetHistoryLengthAndPrune(site_instance.get(),
[email protected]9e1ad4b2011-08-14 16:49:191089 max_source_index,
1090 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571091
1092 // Copy the max page id map from the old tab to the new tab. This ensures
1093 // that new and existing navigations in the tab's current SiteInstances
1094 // are identified properly.
1095 tab_contents_->CopyMaxPageIDsFrom(source->tab_contents());
1096
1097 // If there is a last committed entry, be sure to include it in the new
1098 // max page ID map.
1099 if (max_page_id > -1) {
1100 tab_contents_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
1101 max_page_id);
1102 }
[email protected]e1cd5452010-08-26 18:03:251103}
1104
[email protected]d202a7c2012-01-04 07:53:471105void NavigationControllerImpl::PruneAllButActive() {
[email protected]97b6c4f2010-09-27 19:31:261106 if (transient_entry_index_ != -1) {
1107 // There is a transient entry. Prune up to it.
[email protected]a26023822011-12-29 00:23:551108 DCHECK_EQ(GetEntryCount() - 1, transient_entry_index_);
[email protected]77d8d622010-12-15 10:30:121109 entries_.erase(entries_.begin(), entries_.begin() + transient_entry_index_);
[email protected]97b6c4f2010-09-27 19:31:261110 transient_entry_index_ = 0;
1111 last_committed_entry_index_ = -1;
1112 pending_entry_index_ = -1;
1113 } else if (!pending_entry_) {
1114 // There's no pending entry. Leave the last entry (if there is one).
[email protected]a26023822011-12-29 00:23:551115 if (!GetEntryCount())
[email protected]97b6c4f2010-09-27 19:31:261116 return;
1117
[email protected]77d8d622010-12-15 10:30:121118 DCHECK(last_committed_entry_index_ >= 0);
1119 entries_.erase(entries_.begin(),
1120 entries_.begin() + last_committed_entry_index_);
1121 entries_.erase(entries_.begin() + 1, entries_.end());
[email protected]97b6c4f2010-09-27 19:31:261122 last_committed_entry_index_ = 0;
1123 } else if (pending_entry_index_ != -1) {
[email protected]77d8d622010-12-15 10:30:121124 entries_.erase(entries_.begin(), entries_.begin() + pending_entry_index_);
1125 entries_.erase(entries_.begin() + 1, entries_.end());
[email protected]97b6c4f2010-09-27 19:31:261126 pending_entry_index_ = 0;
1127 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261128 } else {
1129 // There is a pending_entry, but it's not in entries_.
1130 pending_entry_index_ = -1;
1131 last_committed_entry_index_ = -1;
[email protected]77d8d622010-12-15 10:30:121132 entries_.clear();
[email protected]97b6c4f2010-09-27 19:31:261133 }
1134
[email protected]0bfbf882011-12-22 18:19:271135 if (tab_contents_->GetInterstitialPage()) {
[email protected]97b6c4f2010-09-27 19:31:261136 // Normally the interstitial page hides itself if the user doesn't proceeed.
1137 // This would result in showing a NavigationEntry we just removed. Set this
1138 // so the interstitial triggers a reload if the user doesn't proceed.
[email protected]0bfbf882011-12-22 18:19:271139 tab_contents_->GetInterstitialPage()->set_reload_on_dont_proceed(true);
[email protected]97b6c4f2010-09-27 19:31:261140 }
[email protected]97b6c4f2010-09-27 19:31:261141}
1142
[email protected]d202a7c2012-01-04 07:53:471143SSLManager* NavigationControllerImpl::GetSSLManager() {
[email protected]71fde352011-12-29 03:29:561144 return &ssl_manager_;
1145}
1146
[email protected]d202a7c2012-01-04 07:53:471147void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561148 max_restored_page_id_ = max_id;
1149}
1150
[email protected]d202a7c2012-01-04 07:53:471151int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561152 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551153}
1154
1155SessionStorageNamespace*
[email protected]d202a7c2012-01-04 07:53:471156 NavigationControllerImpl::GetSessionStorageNamespace() const {
[email protected]a26023822011-12-29 00:23:551157 return session_storage_namespace_;
1158}
[email protected]d202a7c2012-01-04 07:53:471159
1160bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561161 return needs_reload_;
1162}
[email protected]a26023822011-12-29 00:23:551163
[email protected]d202a7c2012-01-04 07:53:471164void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551165 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121166 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311167
1168 DiscardNonCommittedEntries();
1169
1170 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121171 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311172 last_committed_entry_index_--;
1173}
1174
[email protected]d202a7c2012-01-04 07:53:471175void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471176 bool transient = transient_entry_index_ != -1;
1177 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291178
[email protected]cbab76d2008-10-13 22:42:471179 // If there was a transient entry, invalidate everything so the new active
1180 // entry state is shown.
1181 if (transient) {
[email protected]93f230e02011-06-01 14:40:001182 tab_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471183 }
initial.commit09911bf2008-07-26 23:55:291184}
1185
[email protected]d202a7c2012-01-04 07:53:471186NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251187 return pending_entry_;
1188}
1189
[email protected]d202a7c2012-01-04 07:53:471190int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551191 return pending_entry_index_;
1192}
1193
[email protected]d202a7c2012-01-04 07:53:471194void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1195 bool replace) {
[email protected]36fc0392011-12-25 03:59:511196 DCHECK(entry->GetTransitionType() != content::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201197
1198 // Copy the pending entry's unique ID to the committed entry.
1199 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231200 const NavigationEntryImpl* const pending_entry =
1201 (pending_entry_index_ == -1) ?
1202 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201203 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511204 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201205
[email protected]cbab76d2008-10-13 22:42:471206 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201207
1208 int current_size = static_cast<int>(entries_.size());
1209
[email protected]765b35502008-08-21 00:51:201210 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451211 // Prune any entries which are in front of the current entry.
1212 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311213 // last_committed_entry_index_ must be updated here since calls to
1214 // NotifyPrunedEntries() below may re-enter and we must make sure
1215 // last_committed_entry_index_ is not left in an invalid state.
1216 if (replace)
1217 --last_committed_entry_index_;
1218
[email protected]c12bf1a12008-09-17 16:28:491219 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311220 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491221 num_pruned++;
[email protected]765b35502008-08-21 00:51:201222 entries_.pop_back();
1223 current_size--;
1224 }
[email protected]c12bf1a12008-09-17 16:28:491225 if (num_pruned > 0) // Only notify if we did prune something.
1226 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201227 }
1228
[email protected]9b51970d2011-12-09 23:10:231229 if (entries_.size() >= max_entry_count()) {
[email protected]6a13a6c2011-12-20 21:47:121230 DCHECK(last_committed_entry_index_ > 0);
1231 RemoveEntryAtIndex(0);
[email protected]c12bf1a12008-09-17 16:28:491232 NotifyPrunedEntries(this, true, 1);
1233 }
[email protected]765b35502008-08-21 00:51:201234
[email protected]10f417c52011-12-28 21:04:231235 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201236 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431237
1238 // This is a new page ID, so we need everybody to know about it.
[email protected]36fc0392011-12-25 03:59:511239 tab_contents_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291240}
1241
[email protected]d202a7c2012-01-04 07:53:471242void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011243 needs_reload_ = false;
1244
[email protected]83c2e232011-10-07 21:36:461245 // If we were navigating to a slow-to-commit page, and the user performs
1246 // a session history navigation to the last committed page, RenderViewHost
1247 // will force the throbber to start, but WebKit will essentially ignore the
1248 // navigation, and won't send a message to stop the throbber. To prevent this
1249 // from happening, we drop the navigation here and stop the slow-to-commit
1250 // page from loading (which would normally happen during the navigation).
1251 if (pending_entry_index_ != -1 &&
1252 pending_entry_index_ == last_committed_entry_index_ &&
1253 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231254 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511255 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]2905f742011-10-13 03:51:581256 content::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]83c2e232011-10-07 21:36:461257 tab_contents_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121258
1259 // If an interstitial page is showing, we want to close it to get back
1260 // to what was showing before.
[email protected]0bfbf882011-12-22 18:19:271261 if (tab_contents_->GetInterstitialPage())
1262 tab_contents_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121263
[email protected]83c2e232011-10-07 21:36:461264 DiscardNonCommittedEntries();
1265 return;
1266 }
1267
[email protected]6a13a6c2011-12-20 21:47:121268 // If an interstitial page is showing, the previous renderer is blocked and
1269 // cannot make new requests. Unblock (and disable) it to allow this
1270 // navigation to succeed. The interstitial will stay visible until the
1271 // resulting DidNavigate.
[email protected]0bfbf882011-12-22 18:19:271272 if (tab_contents_->GetInterstitialPage())
1273 tab_contents_->GetInterstitialPage()->CancelForNavigation();
[email protected]6a13a6c2011-12-20 21:47:121274
initial.commit09911bf2008-07-26 23:55:291275 // For session history navigations only the pending_entry_index_ is set.
1276 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201277 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201278 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291279 }
1280
[email protected]1ccb3568d2010-02-19 10:51:161281 if (!tab_contents_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471282 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381283
1284 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1285 // it in now that we know. This allows us to find the entry when it commits.
1286 // This works for browser-initiated navigations. We handle renderer-initiated
1287 // navigations to restored entries in TabContents::OnGoToEntryAtOffset.
1288 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231289 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331290 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
1291 tab_contents_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231292 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381293 }
initial.commit09911bf2008-07-26 23:55:291294}
1295
[email protected]d202a7c2012-01-04 07:53:471296void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]93f230e02011-06-01 14:40:001297 content::LoadCommittedDetails* details) {
[email protected]df1af242009-05-01 00:11:401298 details->entry = GetActiveEntry();
[email protected]6c2381d2011-10-19 02:52:531299 content::NotificationDetails notification_details =
1300 content::Details<content::LoadCommittedDetails>(details);
[email protected]df1af242009-05-01 00:11:401301
1302 // We need to notify the ssl_manager_ before the tab_contents_ so the
1303 // location bar will have up-to-date information about the security style
1304 // when it wants to draw. See http://crbug.com/11157
1305 ssl_manager_.DidCommitProvisionalLoad(notification_details);
1306
initial.commit09911bf2008-07-26 23:55:291307 // TODO(pkasting): http://b/1113079 Probably these explicit notification paths
1308 // should be removed, and interested parties should just listen for the
1309 // notification below instead.
[email protected]93f230e02011-06-01 14:40:001310 tab_contents_->NotifyNavigationStateChanged(kInvalidateAll);
initial.commit09911bf2008-07-26 23:55:291311
[email protected]ad50def52011-10-19 23:17:071312 content::NotificationService::current()->Notify(
[email protected]432115822011-07-10 15:52:271313 content::NOTIFICATION_NAV_ENTRY_COMMITTED,
[email protected]c5eed492012-01-04 17:07:501314 content::Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401315 notification_details);
initial.commit09911bf2008-07-26 23:55:291316}
1317
initial.commit09911bf2008-07-26 23:55:291318// static
[email protected]d202a7c2012-01-04 07:53:471319size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231320 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1321 return max_entry_count_for_testing_;
1322 return content::kMaxSessionHistoryEntries;
1323}
1324
[email protected]d202a7c2012-01-04 07:53:471325void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221326 if (is_active && needs_reload_)
1327 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291328}
1329
[email protected]d202a7c2012-01-04 07:53:471330void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291331 if (!needs_reload_)
1332 return;
1333
initial.commit09911bf2008-07-26 23:55:291334 // Calling Reload() results in ignoring state, and not loading.
1335 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1336 // cached state.
1337 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161338 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291339}
1340
[email protected]d202a7c2012-01-04 07:53:471341void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1342 int index) {
[email protected]8286f51a2011-05-31 17:39:131343 content::EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091344 det.changed_entry = entry;
1345 det.index = index;
[email protected]ad50def52011-10-19 23:17:071346 content::NotificationService::current()->Notify(
[email protected]432115822011-07-10 15:52:271347 content::NOTIFICATION_NAV_ENTRY_CHANGED,
[email protected]c5eed492012-01-04 17:07:501348 content::Source<NavigationController>(this),
[email protected]6c2381d2011-10-19 02:52:531349 content::Details<content::EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291350}
1351
[email protected]d202a7c2012-01-04 07:53:471352void NavigationControllerImpl::FinishRestore(int selected_index,
1353 bool from_last_session) {
[email protected]a26023822011-12-29 00:23:551354 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]5e369672009-11-03 23:48:301355 ConfigureEntriesForRestore(&entries_, from_last_session);
initial.commit09911bf2008-07-26 23:55:291356
[email protected]71fde352011-12-29 03:29:561357 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291358
1359 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291360}
[email protected]765b35502008-08-21 00:51:201361
[email protected]d202a7c2012-01-04 07:53:471362void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]765b35502008-08-21 00:51:201363 if (pending_entry_index_ == -1)
1364 delete pending_entry_;
1365 pending_entry_ = NULL;
1366 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471367
1368 DiscardTransientEntry();
1369}
1370
[email protected]d202a7c2012-01-04 07:53:471371void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471372 if (transient_entry_index_ == -1)
1373 return;
[email protected]a0e69262009-06-03 19:08:481374 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181375 if (last_committed_entry_index_ > transient_entry_index_)
1376 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471377 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201378}
1379
[email protected]d202a7c2012-01-04 07:53:471380int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111381 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201382 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111383 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511384 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201385 return i;
1386 }
1387 return -1;
1388}
[email protected]cbab76d2008-10-13 22:42:471389
[email protected]d202a7c2012-01-04 07:53:471390NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471391 if (transient_entry_index_ == -1)
1392 return NULL;
1393 return entries_[transient_entry_index_].get();
1394}
[email protected]e1cd5452010-08-26 18:03:251395
[email protected]d202a7c2012-01-04 07:53:471396void NavigationControllerImpl::InsertEntriesFrom(
1397 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251398 int max_index) {
[email protected]a26023822011-12-29 00:23:551399 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251400 size_t insert_index = 0;
1401 for (int i = 0; i < max_index; i++) {
1402 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041403 if (source.entries_[i].get()->GetPageType() !=
[email protected]66fdbd52011-10-18 17:08:531404 content::PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251405 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231406 linked_ptr<NavigationEntryImpl>(
1407 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251408 }
1409 }
1410}