blob: 698536039f39c4ce4ffbbb594722933ade01045d [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]f9e4dae2012-04-10 21:26:375#include "content/browser/web_contents/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
initial.commit09911bf2008-07-26 23:55:298#include "base/file_util.h"
9#include "base/logging.h"
[email protected]b69934e2011-10-29 02:51:5210#include "base/string_number_conversions.h" // Temporary
initial.commit09911bf2008-07-26 23:55:2911#include "base/string_util.h"
[email protected]b689fce72009-03-17 22:45:3412#include "base/time.h"
[email protected]252cad62010-08-18 18:33:5713#include "base/utf_string_conversions.h"
[email protected]825b1662012-03-12 19:07:3114#include "content/browser/browser_url_handler_impl.h"
[email protected]b9535422012-02-09 01:47:5915#include "content/browser/child_process_security_policy_impl.h"
[email protected]1ea3c792012-04-17 01:25:0416#include "content/browser/dom_storage/dom_storage_context_impl.h"
17#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]b3c41c0b2012-03-06 15:48:3218#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3319#include "content/browser/site_instance_impl.h"
[email protected]f9e4dae2012-04-10 21:26:3720#include "content/browser/web_contents/debug_urls.h"
21#include "content/browser/web_contents/interstitial_page_impl.h"
22#include "content/browser/web_contents/navigation_entry_impl.h"
[email protected]93ddb3c2012-04-11 21:44:2923#include "content/browser/web_contents/web_contents_impl.h"
[email protected]1a3f5312013-04-26 21:00:1024#include "content/browser/web_contents/web_contents_screenshot_manager.h"
[email protected]0aed2f52011-03-23 18:06:3625#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1126#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1927#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4628#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0029#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3830#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1631#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5832#include "content/public/browser/render_widget_host.h"
33#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3434#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3835#include "content/public/browser/user_metrics.h"
[email protected]674bc592011-12-20 23:00:4236#include "content/public/browser/web_contents_delegate.h"
[email protected]d1198fd2012-08-13 22:50:1937#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3838#include "content/public/common/content_constants.h"
[email protected]d1ef81d2012-07-24 11:39:3639#include "content/public/common/url_constants.h"
[email protected]a23de8572009-06-03 02:16:3240#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1641#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3242#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5843#include "skia/ext/platform_canvas.h"
[email protected]bb0e79472012-10-23 04:36:3444#include "webkit/glue/glue_serialize.h"
initial.commit09911bf2008-07-26 23:55:2945
[email protected]8ff00d72012-10-23 19:12:2146namespace content {
[email protected]e9ba4472008-09-14 15:42:4347namespace {
48
[email protected]93f230e02011-06-01 14:40:0049const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3750
[email protected]e9ba4472008-09-14 15:42:4351// Invoked when entries have been pruned, or removed. For example, if the
52// current entries are [google, digg, yahoo], with the current entry google,
53// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4754void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4955 bool from_front,
56 int count) {
[email protected]8ff00d72012-10-23 19:12:2157 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4958 details.from_front = from_front;
59 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2160 NotificationService::current()->Notify(
61 NOTIFICATION_NAV_LIST_PRUNED,
62 Source<NavigationController>(nav_controller),
63 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4364}
65
66// Ensure the given NavigationEntry has a valid state, so that WebKit does not
67// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3968//
[email protected]e9ba4472008-09-14 15:42:4369// An empty state is treated as a new navigation by WebKit, which would mean
70// losing the navigation entries and generating a new navigation entry after
71// this one. We don't want that. To avoid this we create a valid state which
72// WebKit will not treat as a new navigation.
[email protected]10f417c52011-12-28 21:04:2373void SetContentStateIfEmpty(NavigationEntryImpl* entry) {
[email protected]36fc0392011-12-25 03:59:5174 if (entry->GetContentState().empty()) {
75 entry->SetContentState(
76 webkit_glue::CreateHistoryStateForURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4377 }
78}
79
[email protected]2ca1ea662012-10-04 02:26:3680NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
81 NavigationController::RestoreType type) {
82 switch (type) {
83 case NavigationController::RESTORE_CURRENT_SESSION:
84 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
85 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
86 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
87 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
88 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
89 }
90 NOTREACHED();
91 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
92}
93
[email protected]e9ba4472008-09-14 15:42:4394// Configure all the NavigationEntries in entries for restore. This resets
95// the transition type to reload and makes sure the content state isn't empty.
96void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2397 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]2ca1ea662012-10-04 02:26:3698 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:4399 for (size_t i = 0; i < entries->size(); ++i) {
100 // Use a transition type of reload so that we don't incorrectly increase
101 // the typed count.
[email protected]8ff00d72012-10-23 19:12:21102 (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:36103 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:43104 // NOTE(darin): This code is only needed for backwards compat.
105 SetContentStateIfEmpty((*entries)[i].get());
106 }
107}
108
109// See NavigationController::IsURLInPageNavigation for how this works and why.
[email protected]ce760d742012-08-30 22:31:10110bool AreURLsInPageNavigation(const GURL& existing_url,
111 const GURL& new_url,
112 bool renderer_says_in_page) {
113 if (existing_url == new_url)
114 return renderer_says_in_page;
115
116 if (!new_url.has_ref()) {
[email protected]192d8c5e2010-02-23 07:26:32117 // TODO(jcampan): what about when navigating back from a ref URL to the top
118 // non ref URL? Nothing is loaded in that case but we return false here.
119 // The user could also navigate from the ref URL to the non ref URL by
120 // entering the non ref URL in the location bar or through a bookmark, in
121 // which case there would be a load. I am not sure if the non-load/load
122 // scenarios can be differentiated with the TransitionType.
[email protected]e9ba4472008-09-14 15:42:43123 return false;
[email protected]192d8c5e2010-02-23 07:26:32124 }
[email protected]e9ba4472008-09-14 15:42:43125
126 url_canon::Replacements<char> replacements;
127 replacements.ClearRef();
128 return existing_url.ReplaceComponents(replacements) ==
129 new_url.ReplaceComponents(replacements);
130}
131
[email protected]bf70edce2012-06-20 22:32:22132// Determines whether or not we should be carrying over a user agent override
133// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21134bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22135 return last_entry && last_entry->GetIsOverridingUserAgent();
136}
137
[email protected]e9ba4472008-09-14 15:42:43138} // namespace
139
[email protected]d202a7c2012-01-04 07:53:47140// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29141
[email protected]9b51970d2011-12-09 23:10:23142const size_t kMaxEntryCountForTestingNotSet = -1;
143
[email protected]765b35502008-08-21 00:51:20144// static
[email protected]d202a7c2012-01-04 07:53:47145size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23146 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20147
[email protected]cdcb1dee2012-01-04 00:46:20148 // Should Reload check for post data? The default is true, but is set to false
149// when testing.
150static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29151
[email protected]71fde352011-12-29 03:29:56152// static
[email protected]cdcb1dee2012-01-04 00:46:20153NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56154 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20155 const Referrer& referrer,
156 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56157 bool is_renderer_initiated,
158 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20159 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56160 // Allow the browser URL handler to rewrite the URL. This will, for example,
161 // remove "view-source:" from the beginning of the URL to get the URL that
162 // will actually be loaded. This real URL won't be shown to the user, just
163 // used internally.
164 GURL loaded_url(url);
165 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31166 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56167 &loaded_url, browser_context, &reverse_on_redirect);
168
169 NavigationEntryImpl* entry = new NavigationEntryImpl(
170 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56171 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56172 -1,
173 loaded_url,
174 referrer,
175 string16(),
176 transition,
177 is_renderer_initiated);
178 entry->SetVirtualURL(url);
179 entry->set_user_typed_url(url);
180 entry->set_update_virtual_url_with_url(reverse_on_redirect);
181 entry->set_extra_headers(extra_headers);
182 return entry;
183}
184
[email protected]cdcb1dee2012-01-04 00:46:20185// static
186void NavigationController::DisablePromptOnRepost() {
187 g_check_for_repost = false;
188}
189
[email protected]c5b88d82012-10-06 17:03:33190base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
191 base::Time t) {
192 // If |t| is between the water marks, we're in a run of duplicates
193 // or just getting out of it, so increase the high-water mark to get
194 // a time that probably hasn't been used before and return it.
195 if (low_water_mark_ <= t && t <= high_water_mark_) {
196 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
197 return high_water_mark_;
198 }
199
200 // Otherwise, we're clear of the last duplicate run, so reset the
201 // water marks.
202 low_water_mark_ = high_water_mark_ = t;
203 return t;
204}
205
[email protected]d202a7c2012-01-04 07:53:47206NavigationControllerImpl::NavigationControllerImpl(
[email protected]2db9bd72012-04-13 20:20:56207 WebContentsImpl* web_contents,
[email protected]d1198fd2012-08-13 22:50:19208 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37209 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20210 pending_entry_(NULL),
211 last_committed_entry_index_(-1),
212 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47213 transient_entry_index_(-1),
[email protected]2db9bd72012-04-13 20:20:56214 web_contents_(web_contents),
initial.commit09911bf2008-07-26 23:55:29215 max_restored_page_id_(-1),
[email protected]5d063842009-05-15 04:08:24216 ALLOW_THIS_IN_INITIALIZER_LIST(ssl_manager_(this)),
[email protected]38b8f4e2009-09-24 19:44:57217 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09218 is_initial_navigation_(true),
[email protected]c5b88d82012-10-06 17:03:33219 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31220 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]1a3f5312013-04-26 21:00:10221 ALLOW_THIS_IN_INITIALIZER_LIST(
222 screenshot_manager_(new WebContentsScreenshotManager(this))) {
[email protected]3d7474ff2011-07-27 17:47:37223 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29224}
225
[email protected]d202a7c2012-01-04 07:53:47226NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47227 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29228}
229
[email protected]d202a7c2012-01-04 07:53:47230WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]2db9bd72012-04-13 20:20:56231 return web_contents_;
[email protected]fbc5e5f92012-01-02 06:08:32232}
233
[email protected]d202a7c2012-01-04 07:53:47234BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55235 return browser_context_;
236}
237
[email protected]d202a7c2012-01-04 07:53:47238void NavigationControllerImpl::SetBrowserContext(
239 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20240 browser_context_ = browser_context;
241}
242
[email protected]d202a7c2012-01-04 07:53:47243void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30244 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36245 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23246 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57247 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55248 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57249 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14250 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57251
[email protected]ce3fa3c2009-04-20 19:55:57252 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04253 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23254 NavigationEntryImpl* entry =
255 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
256 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04257 }
[email protected]03838e22011-06-06 15:27:14258 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57259
260 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36261 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57262}
263
[email protected]d202a7c2012-01-04 07:53:47264void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16265 ReloadInternal(check_for_repost, RELOAD);
266}
[email protected]d202a7c2012-01-04 07:53:47267void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16268 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
269}
[email protected]7c16976c2012-08-04 02:38:23270void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
271 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
272}
[email protected]1ccb3568d2010-02-19 10:51:16273
[email protected]d202a7c2012-01-04 07:53:47274void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
275 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36276 if (transient_entry_index_ != -1) {
277 // If an interstitial is showing, treat a reload as a navigation to the
278 // transient entry's URL.
[email protected]8ff00d72012-10-23 19:12:21279 NavigationEntryImpl* active_entry =
[email protected]669e0ba2012-08-30 23:57:36280 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
281 if (!active_entry)
282 return;
283 LoadURL(active_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21284 Referrer(),
285 PAGE_TRANSITION_RELOAD,
[email protected]669e0ba2012-08-30 23:57:36286 active_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47287 return;
[email protected]669e0ba2012-08-30 23:57:36288 }
[email protected]cbab76d2008-10-13 22:42:47289
[email protected]979a4bc2013-04-24 01:27:15290 DiscardNonCommittedEntriesInternal();
291 int current_index = GetCurrentEntryIndex();
[email protected]241db352013-04-22 18:04:05292 // If we are no where, then we can't reload. TODO(darin): We should add a
293 // CanReload method.
[email protected]979a4bc2013-04-24 01:27:15294 if (current_index == -1) {
[email protected]241db352013-04-22 18:04:05295 return;
[email protected]979a4bc2013-04-24 01:27:15296 }
[email protected]241db352013-04-22 18:04:05297
[email protected]cdcb1dee2012-01-04 00:46:20298 if (g_check_for_repost && check_for_repost &&
[email protected]979a4bc2013-04-24 01:27:15299 GetEntryAtIndex(current_index)->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30300 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07301 // they really want to do this. If they do, the dialog will call us back
302 // with check_for_repost = false.
[email protected]17e286e2013-03-01 23:29:39303 web_contents_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02304
[email protected]106a0812010-03-18 00:15:12305 pending_reload_ = reload_type;
[email protected]2db9bd72012-04-13 20:20:56306 web_contents_->Activate();
307 web_contents_->GetDelegate()->ShowRepostFormWarningDialog(web_contents_);
initial.commit09911bf2008-07-26 23:55:29308 } else {
[email protected]979a4bc2013-04-24 01:27:15309 DiscardNonCommittedEntriesInternal();
310
311 NavigationEntryImpl* entry = entries_[current_index].get();
312 SiteInstanceImpl* site_instance = entry->site_instance();
313 DCHECK(site_instance);
[email protected]c3b3d952012-01-31 12:52:26314
[email protected]bcd904482012-02-01 01:54:22315 // If we are reloading an entry that no longer belongs to the current
316 // site instance (for example, refreshing a page for just installed app),
317 // the reload must happen in a new process.
318 // The new entry must have a new page_id and site instance, so it behaves
319 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30320 // Tabs that are discarded due to low memory conditions may not have a site
321 // instance, and should not be treated as a cross-site reload.
322 if (site_instance &&
323 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22324 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22325 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22326 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
327 CreateNavigationEntry(
328 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
329 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26330
[email protected]11535962012-02-09 21:02:10331 // Mark the reload type as NO_RELOAD, so navigation will not be considered
332 // a reload in the renderer.
333 reload_type = NavigationController::NO_RELOAD;
334
[email protected]e2caa032012-11-15 23:29:18335 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22336 pending_entry_ = nav_entry;
337 } else {
338 pending_entry_index_ = current_index;
339
340 // The title of the page being reloaded might have been removed in the
341 // meanwhile, so we need to revert to the default title upon reload and
342 // invalidate the previously cached title (SetTitle will do both).
343 // See Chromium issue 96041.
[email protected]979a4bc2013-04-24 01:27:15344 entries_[pending_entry_index_]->SetTitle(string16());
[email protected]bcd904482012-02-01 01:54:22345
[email protected]979a4bc2013-04-24 01:27:15346 entries_[pending_entry_index_]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22347 }
348
[email protected]1ccb3568d2010-02-19 10:51:16349 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29350 }
351}
352
[email protected]d202a7c2012-01-04 07:53:47353void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12354 DCHECK(pending_reload_ != NO_RELOAD);
355 pending_reload_ = NO_RELOAD;
356}
357
[email protected]d202a7c2012-01-04 07:53:47358void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12359 if (pending_reload_ == NO_RELOAD) {
360 NOTREACHED();
361 } else {
362 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02363 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12364 }
365}
366
[email protected]cd2e15742013-03-08 04:08:31367bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09368 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11369}
370
[email protected]d202a7c2012-01-04 07:53:47371NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33372 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11373 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20374 return (index != -1) ? entries_[index].get() : NULL;
375}
376
[email protected]d202a7c2012-01-04 07:53:47377void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]419a0572011-04-18 22:21:46378 // Don't navigate to URLs disabled by policy. This prevents showing the URL
379 // on the Omnibar when it is also going to be blocked by
380 // ChildProcessSecurityPolicy::CanRequestURL.
[email protected]b9535422012-02-09 01:47:59381 ChildProcessSecurityPolicyImpl* policy =
382 ChildProcessSecurityPolicyImpl::GetInstance();
[email protected]36fc0392011-12-25 03:59:51383 if (policy->IsDisabledScheme(entry->GetURL().scheme()) ||
384 policy->IsDisabledScheme(entry->GetVirtualURL().scheme())) {
[email protected]419a0572011-04-18 22:21:46385 VLOG(1) << "URL not loaded because the scheme is blocked by policy: "
[email protected]36fc0392011-12-25 03:59:51386 << entry->GetURL();
[email protected]419a0572011-04-18 22:21:46387 delete entry;
388 return;
389 }
390
[email protected]765b35502008-08-21 00:51:20391 // When navigating to a new page, we don't know for sure if we will actually
392 // end up leaving the current page. The new page load could for example
393 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]cbab76d2008-10-13 22:42:47394 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20395 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21396 NotificationService::current()->Notify(
397 NOTIFICATION_NAV_ENTRY_PENDING,
398 Source<NavigationController>(this),
399 Details<NavigationEntry>(entry));
[email protected]979a4bc2013-04-24 01:27:15400 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20401}
402
[email protected]d202a7c2012-01-04 07:53:47403NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47404 if (transient_entry_index_ != -1)
405 return entries_[transient_entry_index_].get();
406 if (pending_entry_)
407 return pending_entry_;
408 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20409}
410
[email protected]d202a7c2012-01-04 07:53:47411NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19412 if (transient_entry_index_ != -1)
413 return entries_[transient_entry_index_].get();
[email protected]979a4bc2013-04-24 01:27:15414 // Only return the pending_entry for new (non-history), browser-initiated
415 // navigations, in order to prevent URL spoof attacks.
416 // Ideally we would also show the pending entry's URL for new renderer-
417 // initiated navigations with no last committed entry (e.g., a link opening
418 // in a new tab), but an attacker can insert content into the about:blank
419 // page while the pending URL loads in that case.
420 if (pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51421 pending_entry_->GetPageID() == -1 &&
[email protected]e47ae9472011-10-13 19:48:34422 !pending_entry_->is_renderer_initiated())
[email protected]867e1f92011-08-30 19:01:19423 return pending_entry_;
424 return GetLastCommittedEntry();
425}
426
[email protected]d202a7c2012-01-04 07:53:47427int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47428 if (transient_entry_index_ != -1)
429 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20430 if (pending_entry_index_ != -1)
431 return pending_entry_index_;
432 return last_committed_entry_index_;
433}
434
[email protected]d202a7c2012-01-04 07:53:47435NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20436 if (last_committed_entry_index_ == -1)
437 return NULL;
438 return entries_[last_committed_entry_index_].get();
439}
440
[email protected]d202a7c2012-01-04 07:53:47441bool NavigationControllerImpl::CanViewSource() const {
[email protected]9d86c4982013-01-09 00:38:34442 const std::string& mime_type = web_contents_->GetContentsMimeType();
443 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
444 !net::IsSupportedMediaMimeType(mime_type);
[email protected]10f417c52011-12-28 21:04:23445 NavigationEntry* active_entry = GetActiveEntry();
[email protected]31682282010-01-15 18:05:16446 return active_entry && !active_entry->IsViewSourceMode() &&
[email protected]9d86c4982013-01-09 00:38:34447 is_viewable_mime_type && !web_contents_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16448}
449
[email protected]d202a7c2012-01-04 07:53:47450int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55451 return last_committed_entry_index_;
452}
453
[email protected]d202a7c2012-01-04 07:53:47454int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25455 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55456 return static_cast<int>(entries_.size());
457}
458
[email protected]d202a7c2012-01-04 07:53:47459NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25460 int index) const {
461 return entries_.at(index).get();
462}
463
[email protected]d202a7c2012-01-04 07:53:47464NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25465 int offset) const {
[email protected]9ba14052012-06-22 23:50:03466 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55467 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20468 return NULL;
469
470 return entries_[index].get();
471}
472
[email protected]9ba14052012-06-22 23:50:03473int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46474 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03475}
476
[email protected]9677a3c2012-12-22 04:18:58477void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10478 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58479}
480
[email protected]1a3f5312013-04-26 21:00:10481void NavigationControllerImpl::SetScreenshotManager(
482 WebContentsScreenshotManager* manager) {
483 screenshot_manager_.reset(manager ? manager :
484 new WebContentsScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58485}
486
[email protected]d202a7c2012-01-04 07:53:47487bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20488 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
489}
490
[email protected]d202a7c2012-01-04 07:53:47491bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20492 int index = GetCurrentEntryIndex();
493 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
494}
495
[email protected]9ba14052012-06-22 23:50:03496bool NavigationControllerImpl::CanGoToOffset(int offset) const {
497 int index = GetIndexForOffset(offset);
498 return index >= 0 && index < GetEntryCount();
499}
500
[email protected]d202a7c2012-01-04 07:53:47501void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20502 if (!CanGoBack()) {
503 NOTREACHED();
504 return;
505 }
506
507 // Base the navigation on where we are now...
508 int current_index = GetCurrentEntryIndex();
509
[email protected]cbab76d2008-10-13 22:42:47510 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20511
512 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25513 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21514 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51515 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21516 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16517 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20518}
519
[email protected]d202a7c2012-01-04 07:53:47520void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20521 if (!CanGoForward()) {
522 NOTREACHED();
523 return;
524 }
525
[email protected]cbab76d2008-10-13 22:42:47526 bool transient = (transient_entry_index_ != -1);
527
[email protected]765b35502008-08-21 00:51:20528 // Base the navigation on where we are now...
529 int current_index = GetCurrentEntryIndex();
530
[email protected]cbab76d2008-10-13 22:42:47531 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20532
[email protected]cbab76d2008-10-13 22:42:47533 pending_entry_index_ = current_index;
534 // If there was a transient entry, we removed it making the current index
535 // the next page.
536 if (!transient)
537 pending_entry_index_++;
538
[email protected]022af742011-12-28 18:37:25539 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21540 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51541 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21542 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16543 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20544}
545
[email protected]d202a7c2012-01-04 07:53:47546void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20547 if (index < 0 || index >= static_cast<int>(entries_.size())) {
548 NOTREACHED();
549 return;
550 }
551
[email protected]cbab76d2008-10-13 22:42:47552 if (transient_entry_index_ != -1) {
553 if (index == transient_entry_index_) {
554 // Nothing to do when navigating to the transient.
555 return;
556 }
557 if (index > transient_entry_index_) {
558 // Removing the transient is goint to shift all entries by 1.
559 index--;
560 }
561 }
562
563 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20564
565 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25566 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21567 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51568 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21569 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16570 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20571}
572
[email protected]d202a7c2012-01-04 07:53:47573void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03574 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20575 return;
576
[email protected]9ba14052012-06-22 23:50:03577 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20578}
579
[email protected]d202a7c2012-01-04 07:53:47580void NavigationControllerImpl::RemoveEntryAtIndex(int index) {
[email protected]6a13a6c2011-12-20 21:47:12581 if (index == last_committed_entry_index_)
582 return;
583
[email protected]43032342011-03-21 14:10:31584 RemoveEntryAtIndexInternal(index);
[email protected]cbab76d2008-10-13 22:42:47585}
586
[email protected]d202a7c2012-01-04 07:53:47587void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23588 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32589 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31590 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51591 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
592 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32593 }
594}
595
[email protected]d202a7c2012-01-04 07:53:47596void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47597 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21598 const Referrer& referrer,
599 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47600 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47601 LoadURLParams params(url);
602 params.referrer = referrer;
603 params.transition_type = transition;
604 params.extra_headers = extra_headers;
605 LoadURLWithParams(params);
606}
607
608void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]8ff00d72012-10-23 19:12:21609 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18610 return;
611
[email protected]cf002332012-08-14 19:17:47612 // Checks based on params.load_type.
613 switch (params.load_type) {
614 case LOAD_TYPE_DEFAULT:
615 break;
616 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
617 if (!params.url.SchemeIs(chrome::kHttpScheme) &&
618 !params.url.SchemeIs(chrome::kHttpsScheme)) {
619 NOTREACHED() << "Http post load must use http(s) scheme.";
620 return;
621 }
622 break;
623 case LOAD_TYPE_DATA:
624 if (!params.url.SchemeIs(chrome::kDataScheme)) {
625 NOTREACHED() << "Data load must use data scheme.";
626 return;
627 }
628 break;
629 default:
630 NOTREACHED();
631 break;
632 };
[email protected]e47ae9472011-10-13 19:48:34633
[email protected]e47ae9472011-10-13 19:48:34634 // The user initiated a load, we don't need to reload anymore.
635 needs_reload_ = false;
636
[email protected]cf002332012-08-14 19:17:47637 bool override = false;
638 switch (params.override_user_agent) {
639 case UA_OVERRIDE_INHERIT:
640 override = ShouldKeepOverride(GetLastCommittedEntry());
641 break;
642 case UA_OVERRIDE_TRUE:
643 override = true;
644 break;
645 case UA_OVERRIDE_FALSE:
646 override = false;
647 break;
648 default:
649 NOTREACHED();
650 break;
[email protected]d1ef81d2012-07-24 11:39:36651 }
652
[email protected]d1ef81d2012-07-24 11:39:36653 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
654 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47655 params.url,
656 params.referrer,
657 params.transition_type,
658 params.is_renderer_initiated,
659 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36660 browser_context_));
[email protected]e2caa032012-11-15 23:29:18661 if (params.is_cross_site_redirect)
662 entry->set_should_replace_entry(true);
[email protected]cf002332012-08-14 19:17:47663 entry->SetIsOverridingUserAgent(override);
664 entry->set_transferred_global_request_id(
665 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37666 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36667
[email protected]cf002332012-08-14 19:17:47668 switch (params.load_type) {
669 case LOAD_TYPE_DEFAULT:
670 break;
671 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
672 entry->SetHasPostData(true);
673 entry->SetBrowserInitiatedPostData(
674 params.browser_initiated_post_data);
675 break;
676 case LOAD_TYPE_DATA:
677 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
678 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37679 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47680 break;
681 default:
682 NOTREACHED();
683 break;
684 };
[email protected]132e281a2012-07-31 18:32:44685
686 LoadEntry(entry);
687}
688
[email protected]d202a7c2012-01-04 07:53:47689bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43690 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8ff00d72012-10-23 19:12:21691 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31692 is_initial_navigation_ = false;
693
[email protected]0e8db942008-09-24 21:21:48694 // Save the previous state before we clobber it.
695 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51696 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55697 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48698 } else {
699 details->previous_url = GURL();
700 details->previous_entry_index = -1;
701 }
[email protected]ecd9d8702008-08-28 22:10:17702
[email protected]77362eb2011-08-01 17:18:38703 // If we have a pending entry at this point, it should have a SiteInstance.
704 // Restored entries start out with a null SiteInstance, but we should have
705 // assigned one in NavigateToPendingEntry.
706 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43707
[email protected]bcd904482012-02-01 01:54:22708 // If we are doing a cross-site reload, we need to replace the existing
709 // navigation entry, not add another entry to the history. This has the side
710 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18711 // Or if we are doing a cross-site redirect navigation,
712 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59713 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18714 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22715
[email protected]192d8c5e2010-02-23 07:26:32716 // is_in_page must be computed before the entry gets committed.
[email protected]ce760d742012-08-30 22:31:10717 details->is_in_page = IsURLInPageNavigation(
718 params.url, params.was_within_same_page);
[email protected]192d8c5e2010-02-23 07:26:32719
[email protected]e9ba4472008-09-14 15:42:43720 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48721 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20722
[email protected]0e8db942008-09-24 21:21:48723 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21724 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59725 RendererDidNavigateToNewPage(params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43726 break;
[email protected]8ff00d72012-10-23 19:12:21727 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43728 RendererDidNavigateToExistingPage(params);
729 break;
[email protected]8ff00d72012-10-23 19:12:21730 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43731 RendererDidNavigateToSamePage(params);
732 break;
[email protected]8ff00d72012-10-23 19:12:21733 case NAVIGATION_TYPE_IN_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59734 RendererDidNavigateInPage(params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43735 break;
[email protected]8ff00d72012-10-23 19:12:21736 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43737 RendererDidNavigateNewSubframe(params);
738 break;
[email protected]8ff00d72012-10-23 19:12:21739 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43740 if (!RendererDidNavigateAutoSubframe(params))
741 return false;
742 break;
[email protected]8ff00d72012-10-23 19:12:21743 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49744 // If a pending navigation was in progress, this canceled it. We should
745 // discard it and make sure it is removed from the URL bar. After that,
746 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43747 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49748 if (pending_entry_) {
749 DiscardNonCommittedEntries();
[email protected]8ff00d72012-10-23 19:12:21750 web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49751 }
[email protected]e9ba4472008-09-14 15:42:43752 return false;
753 default:
754 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20755 }
756
[email protected]688aa65c62012-09-28 04:32:22757 // At this point, we know that the navigation has just completed, so
758 // record the time.
759 //
760 // TODO(akalin): Use "sane time" as described in
761 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33762 base::Time timestamp =
763 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
764 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22765 << timestamp.ToInternalValue();
766
[email protected]f233e4232013-02-23 00:55:14767 // We should not have a pending entry anymore. Clear it again in case any
768 // error cases above forgot to do so.
769 DiscardNonCommittedEntriesInternal();
770
[email protected]e9ba4472008-09-14 15:42:43771 // All committed entries should have nonempty content state so WebKit doesn't
772 // get confused when we go back to them (see the function for details).
[email protected]0f38dc4552011-02-25 11:24:00773 DCHECK(!params.content_state.empty());
[email protected]10f417c52011-12-28 21:04:23774 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14775 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22776 active_entry->SetTimestamp(timestamp);
[email protected]36fc0392011-12-25 03:59:51777 active_entry->SetContentState(params.content_state);
[email protected]132e281a2012-07-31 18:32:44778 // No longer needed since content state will hold the post data if any.
779 active_entry->SetBrowserInitiatedPostData(NULL);
780
[email protected]e47ae9472011-10-13 19:48:34781 // Once committed, we do not need to track if the entry was initiated by
782 // the renderer.
783 active_entry->set_is_renderer_initiated(false);
784
[email protected]49bd30e62011-03-22 20:12:59785 // The active entry's SiteInstance should match our SiteInstance.
[email protected]f233e4232013-02-23 00:55:14786 CHECK(active_entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59787
[email protected]b26de072013-02-23 02:33:44788 // Remember the bindings the renderer process has at this point, so that
789 // we do not grant this entry additional bindings if we come back to it.
790 active_entry->SetBindings(
791 web_contents_->GetRenderViewHost()->GetEnabledBindings());
792
[email protected]e9ba4472008-09-14 15:42:43793 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00794 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58795 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21796 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24797 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31798 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00799 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29800
[email protected]e9ba4472008-09-14 15:42:43801 return true;
initial.commit09911bf2008-07-26 23:55:29802}
803
[email protected]8ff00d72012-10-23 19:12:21804NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43805 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43806 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46807 // The renderer generates the page IDs, and so if it gives us the invalid
808 // page ID (-1) we know it didn't actually navigate. This happens in a few
809 // cases:
810 //
811 // - If a page makes a popup navigated to about blank, and then writes
812 // stuff like a subframe navigated to a real page. We'll get the commit
813 // for the subframe, but there won't be any commit for the outer page.
814 //
815 // - We were also getting these for failed loads (for example, bug 21849).
816 // The guess is that we get a "load commit" for the alternate error page,
817 // but that doesn't affect the page ID, so we get the "old" one, which
818 // could be invalid. This can also happen for a cross-site transition
819 // that causes us to swap processes. Then the error page load will be in
820 // a new process with no page IDs ever assigned (and hence a -1 value),
821 // yet the navigation controller still might have previous pages in its
822 // list.
823 //
824 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21825 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43826 }
827
[email protected]2db9bd72012-04-13 20:20:56828 if (params.page_id > web_contents_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43829 // Greater page IDs than we've ever seen before are new pages. We may or may
830 // not have a pending entry for the page, and this may or may not be the
831 // main frame.
[email protected]8ff00d72012-10-23 19:12:21832 if (PageTransitionIsMainFrame(params.transition))
833 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09834
835 // When this is a new subframe navigation, we should have a committed page
836 // for which it's a suframe in. This may not be the case when an iframe is
837 // navigated on a popup navigated to about:blank (the iframe would be
838 // written into the popup by script on the main page). For these cases,
839 // there isn't any navigation stuff we can do, so just ignore it.
840 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21841 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09842
843 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21844 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43845 }
846
847 // Now we know that the notification is for an existing page. Find that entry.
848 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:56849 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43850 params.page_id);
851 if (existing_entry_index == -1) {
852 // The page was not found. It could have been pruned because of the limit on
853 // back/forward entries (not likely since we'll usually tell it to navigate
854 // to such entries). It could also mean that the renderer is smoking crack.
855 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46856
857 // Because the unknown entry has committed, we risk showing the wrong URL in
858 // release builds. Instead, we'll kill the renderer process to be safe.
859 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]8ff00d72012-10-23 19:12:21860 RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52861
[email protected]7ec6f382011-11-11 01:28:17862 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10863 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
864 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17865 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52866 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17867 temp.append("#max");
[email protected]2db9bd72012-04-13 20:20:56868 temp.append(base::IntToString(web_contents_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17869 temp.append("#frame");
870 temp.append(base::IntToString(params.frame_id));
871 temp.append("#ids");
872 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10873 // Append entry metadata (e.g., 3_7x):
874 // 3: page_id
875 // 7: SiteInstance ID, or N for null
876 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51877 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10878 temp.append("_");
879 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33880 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17881 else
[email protected]8c380582011-12-02 03:16:10882 temp.append("N");
[email protected]2db9bd72012-04-13 20:20:56883 if (entries_[i]->site_instance() != web_contents_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17884 temp.append("x");
885 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52886 }
887 GURL url(temp);
[email protected]9f76c1e2012-03-05 15:15:58888 static_cast<RenderViewHostImpl*>(
[email protected]2db9bd72012-04-13 20:20:56889 web_contents_->GetRenderViewHost())->Send(
[email protected]9f76c1e2012-03-05 15:15:58890 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21891 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43892 }
[email protected]10f417c52011-12-28 21:04:23893 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43894
[email protected]8ff00d72012-10-23 19:12:21895 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52896 // All manual subframes would get new IDs and were handled above, so we
897 // know this is auto. Since the current page was found in the navigation
898 // entry list, we're guaranteed to have a last committed entry.
899 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21900 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52901 }
902
903 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43904 if (pending_entry_ &&
[email protected]e9ba4472008-09-14 15:42:43905 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51906 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24907 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43908 // In this case, we have a pending entry for a URL but WebCore didn't do a
909 // new navigation. This happens when you press enter in the URL bar to
910 // reload. We will create a pending entry, but WebKit will convert it to
911 // a reload since it's the same page and not create a new entry for it
912 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24913 // this). If this matches the last committed entry, we want to just ignore
914 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21915 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43916 }
917
[email protected]fc60f222008-12-18 17:36:54918 // Any toplevel navigations with the same base (minus the reference fragment)
919 // are in-page navigations. We weeded out subframe navigations above. Most of
920 // the time this doesn't matter since WebKit doesn't tell us about subframe
921 // navigations that don't actually navigate, but it can happen when there is
922 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59923 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
924 params.was_within_same_page)) {
[email protected]8ff00d72012-10-23 19:12:21925 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59926 }
[email protected]fc60f222008-12-18 17:36:54927
[email protected]e9ba4472008-09-14 15:42:43928 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09929 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21930 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43931}
932
[email protected]d202a7c2012-01-04 07:53:47933bool NavigationControllerImpl::IsRedirect(
[email protected]09b8f82f2009-06-16 20:22:11934 const ViewHostMsg_FrameNavigate_Params& params) {
935 // For main frame transition, we judge by params.transition.
936 // Otherwise, by params.redirects.
[email protected]8ff00d72012-10-23 19:12:21937 if (PageTransitionIsMainFrame(params.transition)) {
938 return PageTransitionIsRedirect(params.transition);
[email protected]09b8f82f2009-06-16 20:22:11939 }
940 return params.redirects.size() > 1;
941}
942
[email protected]d202a7c2012-01-04 07:53:47943void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]4ac5fbe2012-09-01 02:19:59944 const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23945 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41946 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34947 // Only make a copy of the pending entry if it is appropriate for the new page
948 // that was just loaded. We verify this at a coarse grain by checking that
949 // the SiteInstance hasn't been assigned to something else.
950 if (pending_entry_ &&
951 (!pending_entry_->site_instance() ||
952 pending_entry_->site_instance() == web_contents_->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:23953 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43954
955 // Don't use the page type from the pending entry. Some interstitial page
956 // may have set the type to interstitial. Once we commit, however, the page
957 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:21958 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:41959 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:43960 } else {
[email protected]10f417c52011-12-28 21:04:23961 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:24962
963 // Find out whether the new entry needs to update its virtual URL on URL
964 // change and set up the entry accordingly. This is needed to correctly
965 // update the virtual URL when replaceState is called after a pushState.
966 GURL url = params.url;
967 bool needs_update = false;
968 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
969 &url, browser_context_, &needs_update);
970 new_entry->set_update_virtual_url_with_url(needs_update);
971
[email protected]f1eb87a2011-05-06 17:49:41972 // When navigating to a new page, give the browser URL handler a chance to
973 // update the virtual URL based on the new URL. For example, this is needed
974 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
975 // the URL.
[email protected]f8f93eb2012-09-25 03:06:24976 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:43977 }
978
[email protected]ad23a092011-12-28 07:02:04979 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:41980 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:32981 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:25982 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:51983 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:25984 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:33985 new_entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:56986 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:51987 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:05988 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:23989 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:22990 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:43991
[email protected]4ac5fbe2012-09-01 02:19:59992 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:43993}
994
[email protected]d202a7c2012-01-04 07:53:47995void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:43996 const ViewHostMsg_FrameNavigate_Params& params) {
997 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:21998 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:43999
1000 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091001 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1002 // with new information from the renderer.
[email protected]2db9bd72012-04-13 20:20:561003 int entry_index = GetEntryIndexWithPageID(web_contents_->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111004 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431005 DCHECK(entry_index >= 0 &&
1006 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231007 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431008
[email protected]5ccd4dc2012-10-24 02:28:141009 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041010 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:321011 if (entry->update_virtual_url_with_url())
1012 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141013
1014 // The redirected to page should not inherit the favicon from the previous
1015 // page.
1016 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481017 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141018
1019 // The site instance will normally be the same except during session restore,
1020 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431021 DCHECK(entry->site_instance() == NULL ||
[email protected]2db9bd72012-04-13 20:20:561022 entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331023 entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:561024 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431025
[email protected]36fc0392011-12-25 03:59:511026 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051027 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411028
[email protected]e9ba4472008-09-14 15:42:431029 // The entry we found in the list might be pending if the user hit
1030 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591031 // list, we can just discard the pending pointer). We should also discard the
1032 // pending entry if it corresponds to a different navigation, since that one
1033 // is now likely canceled. If it is not canceled, we will treat it as a new
1034 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431035 //
1036 // Note that we need to use the "internal" version since we don't want to
1037 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491038 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391039
[email protected]80858db52009-10-15 00:35:181040 // If a transient entry was removed, the indices might have changed, so we
1041 // have to query the entry index again.
1042 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561043 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431044}
1045
[email protected]d202a7c2012-01-04 07:53:471046void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:431047 const ViewHostMsg_FrameNavigate_Params& params) {
1048 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091049 // entry for this page ID. This entry is guaranteed to exist by
1050 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231051 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561052 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431053
1054 // We assign the entry's unique ID to be that of the new one. Since this is
1055 // always the result of a user action, we want to dismiss infobars, etc. like
1056 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511057 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431058
[email protected]a0e69262009-06-03 19:08:481059 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321060 if (existing_entry->update_virtual_url_with_url())
1061 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041062 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481063
[email protected]cbab76d2008-10-13 22:42:471064 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431065}
1066
[email protected]d202a7c2012-01-04 07:53:471067void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:471068 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211069 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431070 "WebKit should only tell us about in-page navs for the main frame.";
1071 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231072 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561073 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431074
1075 // Reference fragment navigation. We're guaranteed to have the last_committed
1076 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031077 // reference fragments, of course). We'll update the URL of the existing
1078 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041079 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031080 if (existing_entry->update_virtual_url_with_url())
1081 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431082
1083 // This replaces the existing entry since the page ID didn't change.
1084 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031085
[email protected]6eebaab2012-11-15 04:39:491086 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031087
1088 // If a transient entry was removed, the indices might have changed, so we
1089 // have to query the entry index again.
1090 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561091 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431092}
1093
[email protected]d202a7c2012-01-04 07:53:471094void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:431095 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]8ff00d72012-10-23 19:12:211096 if (PageTransitionStripQualifier(params.transition) ==
1097 PAGE_TRANSITION_AUTO_SUBFRAME) {
[email protected]09b8f82f2009-06-16 20:22:111098 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141099 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111100 return;
1101 }
[email protected]09b8f82f2009-06-16 20:22:111102
[email protected]e9ba4472008-09-14 15:42:431103 // Manual subframe navigations just get the current entry cloned so the user
1104 // can go back or forward to it. The actual subframe information will be
1105 // stored in the page state for each of those entries. This happens out of
1106 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091107 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1108 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231109 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1110 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511111 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451112 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431113}
1114
[email protected]d202a7c2012-01-04 07:53:471115bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:431116 const ViewHostMsg_FrameNavigate_Params& params) {
1117 // We're guaranteed to have a previously committed entry, and we now need to
1118 // handle navigation inside of a subframe in it without creating a new entry.
1119 DCHECK(GetLastCommittedEntry());
1120
1121 // Handle the case where we're navigating back/forward to a previous subframe
1122 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1123 // header file. In case "1." this will be a NOP.
1124 int entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:561125 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431126 params.page_id);
1127 if (entry_index < 0 ||
1128 entry_index >= static_cast<int>(entries_.size())) {
1129 NOTREACHED();
1130 return false;
1131 }
1132
1133 // Update the current navigation entry in case we're going back/forward.
1134 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431135 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141136 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431137 return true;
1138 }
[email protected]f233e4232013-02-23 00:55:141139
1140 // We do not need to discard the pending entry in this case, since we will
1141 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431142 return false;
1143}
1144
[email protected]d202a7c2012-01-04 07:53:471145int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231146 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201147 const NavigationEntries::const_iterator i(std::find(
1148 entries_.begin(),
1149 entries_.end(),
1150 entry));
1151 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1152}
1153
[email protected]ce760d742012-08-30 22:31:101154bool NavigationControllerImpl::IsURLInPageNavigation(
1155 const GURL& url, bool renderer_says_in_page) const {
[email protected]10f417c52011-12-28 21:04:231156 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101157 return last_committed && AreURLsInPageNavigation(
1158 last_committed->GetURL(), url, renderer_says_in_page);
[email protected]e9ba4472008-09-14 15:42:431159}
1160
[email protected]d202a7c2012-01-04 07:53:471161void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501162 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471163 const NavigationControllerImpl& source =
1164 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571165 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551166 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571167
[email protected]a26023822011-12-29 00:23:551168 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571169 return; // Nothing new to do.
1170
1171 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551172 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571173
[email protected]d1198fd2012-08-13 22:50:191174 for (SessionStorageNamespaceMap::const_iterator it =
1175 source.session_storage_namespace_map_.begin();
1176 it != source.session_storage_namespace_map_.end();
1177 ++it) {
1178 SessionStorageNamespaceImpl* source_namespace =
1179 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1180 session_storage_namespace_map_.insert(
1181 make_pair(it->first, source_namespace->Clone()));
1182 }
[email protected]4e6419c2010-01-15 04:50:341183
[email protected]2ca1ea662012-10-04 02:26:361184 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571185
1186 // Copy the max page id map from the old tab to the new tab. This ensures
1187 // that new and existing navigations in the tab's current SiteInstances
1188 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561189 web_contents_->CopyMaxPageIDsFrom(source.web_contents());
[email protected]ce3fa3c2009-04-20 19:55:571190}
1191
[email protected]d202a7c2012-01-04 07:53:471192void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501193 NavigationController* temp) {
[email protected]d202a7c2012-01-04 07:53:471194 NavigationControllerImpl* source =
1195 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191196 // The SiteInstance and page_id of the last committed entry needs to be
1197 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571198 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1199 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231200 NavigationEntryImpl* last_committed =
1201 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571202 scoped_refptr<SiteInstance> site_instance(
1203 last_committed ? last_committed->site_instance() : NULL);
[email protected]36fc0392011-12-25 03:59:511204 int32 minimum_page_id = last_committed ? last_committed->GetPageID() : -1;
[email protected]91854cd2012-01-10 19:43:571205 int32 max_page_id = last_committed ?
[email protected]2db9bd72012-04-13 20:20:561206 web_contents_->GetMaxPageIDForSiteInstance(site_instance.get()) : -1;
[email protected]9e1ad4b2011-08-14 16:49:191207
[email protected]e1cd5452010-08-26 18:03:251208 // This code is intended for use when the last entry is the active entry.
[email protected]a26023822011-12-29 00:23:551209 DCHECK(
1210 (transient_entry_index_ != -1 &&
[email protected]91854cd2012-01-10 19:43:571211 transient_entry_index_ == GetEntryCount() - 1) ||
[email protected]a26023822011-12-29 00:23:551212 (pending_entry_ && (pending_entry_index_ == -1 ||
1213 pending_entry_index_ == GetEntryCount() - 1)) ||
1214 (!pending_entry_ && last_committed_entry_index_ == GetEntryCount() - 1));
[email protected]e1cd5452010-08-26 18:03:251215
1216 // Remove all the entries leaving the active entry.
[email protected]9350602e2013-02-26 23:27:441217 PruneAllButActiveInternal();
[email protected]e1cd5452010-08-26 18:03:251218
[email protected]944822b2012-03-02 20:57:251219 // We now have zero or one entries. Ensure that adding the entries from
1220 // source won't put us over the limit.
1221 DCHECK(GetEntryCount() == 0 || GetEntryCount() == 1);
1222 if (GetEntryCount() > 0)
1223 source->PruneOldestEntryIfFull();
1224
[email protected]47e020a2010-10-15 14:43:371225 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]e1cd5452010-08-26 18:03:251226 // we don't want to copy over the transient entry.
[email protected]47e020a2010-10-15 14:43:371227 int max_source_index = source->pending_entry_index_ != -1 ?
1228 source->pending_entry_index_ : source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251229 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551230 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251231 else
1232 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371233 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251234
1235 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551236 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251237 if (pending_entry_index_ != -1)
[email protected]a26023822011-12-29 00:23:551238 pending_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251239 if (transient_entry_index_ != -1) {
1240 // There's a transient entry. In this case we want the last committed to
1241 // point to the previous entry.
[email protected]a26023822011-12-29 00:23:551242 transient_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251243 if (last_committed_entry_index_ != -1)
1244 last_committed_entry_index_--;
1245 }
[email protected]796931a92011-08-10 01:32:141246
[email protected]2db9bd72012-04-13 20:20:561247 web_contents_->SetHistoryLengthAndPrune(site_instance.get(),
[email protected]9e1ad4b2011-08-14 16:49:191248 max_source_index,
1249 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571250
1251 // Copy the max page id map from the old tab to the new tab. This ensures
1252 // that new and existing navigations in the tab's current SiteInstances
1253 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561254 web_contents_->CopyMaxPageIDsFrom(source->web_contents());
[email protected]91854cd2012-01-10 19:43:571255
1256 // If there is a last committed entry, be sure to include it in the new
1257 // max page ID map.
1258 if (max_page_id > -1) {
[email protected]2db9bd72012-04-13 20:20:561259 web_contents_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
[email protected]91854cd2012-01-10 19:43:571260 max_page_id);
1261 }
[email protected]e1cd5452010-08-26 18:03:251262}
1263
[email protected]d202a7c2012-01-04 07:53:471264void NavigationControllerImpl::PruneAllButActive() {
[email protected]9350602e2013-02-26 23:27:441265 PruneAllButActiveInternal();
1266
1267 // If there is an entry left, we need to update the session history length of
1268 // the RenderView.
[email protected]4f644da32013-03-19 01:44:291269 if (!GetActiveEntry())
[email protected]9350602e2013-02-26 23:27:441270 return;
1271
1272 NavigationEntryImpl* entry =
1273 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
[email protected]9350602e2013-02-26 23:27:441274 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1275 // SetHistoryLengthAndPrune, because it will create history_length additional
1276 // history entries.
1277 // TODO(jochen): This API is confusing and we should clean it up.
1278 // http://crbug.com/178491
1279 web_contents_->SetHistoryLengthAndPrune(
1280 entry->site_instance(), 0, entry->GetPageID());
1281}
1282
1283void NavigationControllerImpl::PruneAllButActiveInternal() {
[email protected]97b6c4f2010-09-27 19:31:261284 if (transient_entry_index_ != -1) {
1285 // There is a transient entry. Prune up to it.
[email protected]a26023822011-12-29 00:23:551286 DCHECK_EQ(GetEntryCount() - 1, transient_entry_index_);
[email protected]77d8d622010-12-15 10:30:121287 entries_.erase(entries_.begin(), entries_.begin() + transient_entry_index_);
[email protected]97b6c4f2010-09-27 19:31:261288 transient_entry_index_ = 0;
1289 last_committed_entry_index_ = -1;
1290 pending_entry_index_ = -1;
1291 } else if (!pending_entry_) {
1292 // There's no pending entry. Leave the last entry (if there is one).
[email protected]a26023822011-12-29 00:23:551293 if (!GetEntryCount())
[email protected]97b6c4f2010-09-27 19:31:261294 return;
1295
[email protected]77d8d622010-12-15 10:30:121296 DCHECK(last_committed_entry_index_ >= 0);
1297 entries_.erase(entries_.begin(),
1298 entries_.begin() + last_committed_entry_index_);
1299 entries_.erase(entries_.begin() + 1, entries_.end());
[email protected]97b6c4f2010-09-27 19:31:261300 last_committed_entry_index_ = 0;
1301 } else if (pending_entry_index_ != -1) {
[email protected]77d8d622010-12-15 10:30:121302 entries_.erase(entries_.begin(), entries_.begin() + pending_entry_index_);
1303 entries_.erase(entries_.begin() + 1, entries_.end());
[email protected]97b6c4f2010-09-27 19:31:261304 pending_entry_index_ = 0;
1305 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261306 } else {
1307 // There is a pending_entry, but it's not in entries_.
1308 pending_entry_index_ = -1;
1309 last_committed_entry_index_ = -1;
[email protected]77d8d622010-12-15 10:30:121310 entries_.clear();
[email protected]97b6c4f2010-09-27 19:31:261311 }
1312
[email protected]2db9bd72012-04-13 20:20:561313 if (web_contents_->GetInterstitialPage()) {
[email protected]97b6c4f2010-09-27 19:31:261314 // Normally the interstitial page hides itself if the user doesn't proceeed.
1315 // This would result in showing a NavigationEntry we just removed. Set this
1316 // so the interstitial triggers a reload if the user doesn't proceed.
[email protected]2db9bd72012-04-13 20:20:561317 static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131318 set_reload_on_dont_proceed(true);
[email protected]97b6c4f2010-09-27 19:31:261319 }
[email protected]97b6c4f2010-09-27 19:31:261320}
1321
[email protected]15f46dc2013-01-24 05:40:241322void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101323 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241324}
1325
[email protected]d1198fd2012-08-13 22:50:191326void NavigationControllerImpl::SetSessionStorageNamespace(
1327 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211328 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191329 if (!session_storage_namespace)
1330 return;
1331
1332 // We can't overwrite an existing SessionStorage without violating spec.
1333 // Attempts to do so may give a tab access to another tab's session storage
1334 // so die hard on an error.
1335 bool successful_insert = session_storage_namespace_map_.insert(
1336 make_pair(partition_id,
1337 static_cast<SessionStorageNamespaceImpl*>(
1338 session_storage_namespace)))
1339 .second;
1340 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
1341}
1342
[email protected]d202a7c2012-01-04 07:53:471343void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561344 max_restored_page_id_ = max_id;
1345}
1346
[email protected]d202a7c2012-01-04 07:53:471347int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561348 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551349}
1350
1351SessionStorageNamespace*
[email protected]8ff00d72012-10-23 19:12:211352NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
[email protected]d1198fd2012-08-13 22:50:191353 std::string partition_id;
1354 if (instance) {
1355 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1356 // this if statement so |instance| must not be NULL.
1357 partition_id =
[email protected]e94bbcb2012-09-07 05:33:571358 GetContentClient()->browser()->GetStoragePartitionIdForSite(
[email protected]77ab17312012-09-28 15:34:591359 browser_context_, instance->GetSiteURL());
[email protected]d1198fd2012-08-13 22:50:191360 }
1361
1362 SessionStorageNamespaceMap::const_iterator it =
1363 session_storage_namespace_map_.find(partition_id);
1364 if (it != session_storage_namespace_map_.end())
1365 return it->second.get();
1366
1367 // Create one if no one has accessed session storage for this partition yet.
[email protected]4c3a23582012-08-18 08:54:341368 //
1369 // TODO(ajwong): Should this use the |partition_id| directly rather than
1370 // re-lookup via |instance|? http://crbug.com/142685
[email protected]8ff00d72012-10-23 19:12:211371 StoragePartition* partition =
[email protected]4c3a23582012-08-18 08:54:341372 BrowserContext::GetStoragePartition(browser_context_, instance);
[email protected]d1198fd2012-08-13 22:50:191373 SessionStorageNamespaceImpl* session_storage_namespace =
1374 new SessionStorageNamespaceImpl(
1375 static_cast<DOMStorageContextImpl*>(
[email protected]4c3a23582012-08-18 08:54:341376 partition->GetDOMStorageContext()));
[email protected]d1198fd2012-08-13 22:50:191377 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1378
1379 return session_storage_namespace;
1380}
1381
1382SessionStorageNamespace*
1383NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1384 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1385 return GetSessionStorageNamespace(NULL);
1386}
1387
1388const SessionStorageNamespaceMap&
1389NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1390 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551391}
[email protected]d202a7c2012-01-04 07:53:471392
1393bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561394 return needs_reload_;
1395}
[email protected]a26023822011-12-29 00:23:551396
[email protected]d202a7c2012-01-04 07:53:471397void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551398 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121399 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311400
1401 DiscardNonCommittedEntries();
1402
1403 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121404 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311405 last_committed_entry_index_--;
1406}
1407
[email protected]d202a7c2012-01-04 07:53:471408void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471409 bool transient = transient_entry_index_ != -1;
1410 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291411
[email protected]cbab76d2008-10-13 22:42:471412 // If there was a transient entry, invalidate everything so the new active
1413 // entry state is shown.
1414 if (transient) {
[email protected]2db9bd72012-04-13 20:20:561415 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471416 }
initial.commit09911bf2008-07-26 23:55:291417}
1418
[email protected]d202a7c2012-01-04 07:53:471419NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251420 return pending_entry_;
1421}
1422
[email protected]d202a7c2012-01-04 07:53:471423int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551424 return pending_entry_index_;
1425}
1426
[email protected]d202a7c2012-01-04 07:53:471427void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1428 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211429 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201430
1431 // Copy the pending entry's unique ID to the committed entry.
1432 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231433 const NavigationEntryImpl* const pending_entry =
1434 (pending_entry_index_ == -1) ?
1435 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201436 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511437 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201438
[email protected]cbab76d2008-10-13 22:42:471439 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201440
1441 int current_size = static_cast<int>(entries_.size());
1442
[email protected]765b35502008-08-21 00:51:201443 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451444 // Prune any entries which are in front of the current entry.
1445 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311446 // last_committed_entry_index_ must be updated here since calls to
1447 // NotifyPrunedEntries() below may re-enter and we must make sure
1448 // last_committed_entry_index_ is not left in an invalid state.
1449 if (replace)
1450 --last_committed_entry_index_;
1451
[email protected]c12bf1a12008-09-17 16:28:491452 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311453 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491454 num_pruned++;
[email protected]765b35502008-08-21 00:51:201455 entries_.pop_back();
1456 current_size--;
1457 }
[email protected]c12bf1a12008-09-17 16:28:491458 if (num_pruned > 0) // Only notify if we did prune something.
1459 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201460 }
1461
[email protected]944822b2012-03-02 20:57:251462 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201463
[email protected]10f417c52011-12-28 21:04:231464 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201465 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431466
1467 // This is a new page ID, so we need everybody to know about it.
[email protected]2db9bd72012-04-13 20:20:561468 web_contents_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291469}
1470
[email protected]944822b2012-03-02 20:57:251471void NavigationControllerImpl::PruneOldestEntryIfFull() {
1472 if (entries_.size() >= max_entry_count()) {
1473 DCHECK_EQ(max_entry_count(), entries_.size());
1474 DCHECK(last_committed_entry_index_ > 0);
1475 RemoveEntryAtIndex(0);
1476 NotifyPrunedEntries(this, true, 1);
1477 }
1478}
1479
[email protected]d202a7c2012-01-04 07:53:471480void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011481 needs_reload_ = false;
1482
[email protected]83c2e232011-10-07 21:36:461483 // If we were navigating to a slow-to-commit page, and the user performs
1484 // a session history navigation to the last committed page, RenderViewHost
1485 // will force the throbber to start, but WebKit will essentially ignore the
1486 // navigation, and won't send a message to stop the throbber. To prevent this
1487 // from happening, we drop the navigation here and stop the slow-to-commit
1488 // page from loading (which would normally happen during the navigation).
1489 if (pending_entry_index_ != -1 &&
1490 pending_entry_index_ == last_committed_entry_index_ &&
1491 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231492 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511493 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211494 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]2db9bd72012-04-13 20:20:561495 web_contents_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121496
1497 // If an interstitial page is showing, we want to close it to get back
1498 // to what was showing before.
[email protected]2db9bd72012-04-13 20:20:561499 if (web_contents_->GetInterstitialPage())
1500 web_contents_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121501
[email protected]83c2e232011-10-07 21:36:461502 DiscardNonCommittedEntries();
1503 return;
1504 }
1505
[email protected]6a13a6c2011-12-20 21:47:121506 // If an interstitial page is showing, the previous renderer is blocked and
1507 // cannot make new requests. Unblock (and disable) it to allow this
1508 // navigation to succeed. The interstitial will stay visible until the
1509 // resulting DidNavigate.
[email protected]2db9bd72012-04-13 20:20:561510 if (web_contents_->GetInterstitialPage()) {
1511 static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131512 CancelForNavigation();
1513 }
[email protected]6a13a6c2011-12-20 21:47:121514
initial.commit09911bf2008-07-26 23:55:291515 // For session history navigations only the pending_entry_index_ is set.
1516 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201517 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201518 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291519 }
1520
[email protected]2db9bd72012-04-13 20:20:561521 if (!web_contents_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471522 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381523
1524 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1525 // it in now that we know. This allows us to find the entry when it commits.
1526 // This works for browser-initiated navigations. We handle renderer-initiated
[email protected]2db9bd72012-04-13 20:20:561527 // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset.
[email protected]77362eb2011-08-01 17:18:381528 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231529 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331530 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]2db9bd72012-04-13 20:20:561531 web_contents_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231532 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381533 }
initial.commit09911bf2008-07-26 23:55:291534}
1535
[email protected]d202a7c2012-01-04 07:53:471536void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211537 LoadCommittedDetails* details) {
[email protected]df1af242009-05-01 00:11:401538 details->entry = GetActiveEntry();
[email protected]8ff00d72012-10-23 19:12:211539 NotificationDetails notification_details =
1540 Details<LoadCommittedDetails>(details);
[email protected]df1af242009-05-01 00:11:401541
[email protected]2db9bd72012-04-13 20:20:561542 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401543 // location bar will have up-to-date information about the security style
1544 // when it wants to draw. See http://crbug.com/11157
1545 ssl_manager_.DidCommitProvisionalLoad(notification_details);
1546
initial.commit09911bf2008-07-26 23:55:291547 // TODO(pkasting): http://b/1113079 Probably these explicit notification paths
1548 // should be removed, and interested parties should just listen for the
1549 // notification below instead.
[email protected]2db9bd72012-04-13 20:20:561550 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
initial.commit09911bf2008-07-26 23:55:291551
[email protected]8ff00d72012-10-23 19:12:211552 NotificationService::current()->Notify(
1553 NOTIFICATION_NAV_ENTRY_COMMITTED,
1554 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401555 notification_details);
initial.commit09911bf2008-07-26 23:55:291556}
1557
initial.commit09911bf2008-07-26 23:55:291558// static
[email protected]d202a7c2012-01-04 07:53:471559size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231560 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1561 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211562 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231563}
1564
[email protected]d202a7c2012-01-04 07:53:471565void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221566 if (is_active && needs_reload_)
1567 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291568}
1569
[email protected]d202a7c2012-01-04 07:53:471570void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291571 if (!needs_reload_)
1572 return;
1573
initial.commit09911bf2008-07-26 23:55:291574 // Calling Reload() results in ignoring state, and not loading.
1575 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1576 // cached state.
1577 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161578 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291579}
1580
[email protected]d202a7c2012-01-04 07:53:471581void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1582 int index) {
[email protected]8ff00d72012-10-23 19:12:211583 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091584 det.changed_entry = entry;
1585 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211586 NotificationService::current()->Notify(
1587 NOTIFICATION_NAV_ENTRY_CHANGED,
1588 Source<NavigationController>(this),
1589 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291590}
1591
[email protected]d202a7c2012-01-04 07:53:471592void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361593 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551594 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361595 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291596
[email protected]71fde352011-12-29 03:29:561597 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291598
1599 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291600}
[email protected]765b35502008-08-21 00:51:201601
[email protected]d202a7c2012-01-04 07:53:471602void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]765b35502008-08-21 00:51:201603 if (pending_entry_index_ == -1)
1604 delete pending_entry_;
1605 pending_entry_ = NULL;
1606 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471607
1608 DiscardTransientEntry();
1609}
1610
[email protected]d202a7c2012-01-04 07:53:471611void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471612 if (transient_entry_index_ == -1)
1613 return;
[email protected]a0e69262009-06-03 19:08:481614 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181615 if (last_committed_entry_index_ > transient_entry_index_)
1616 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471617 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201618}
1619
[email protected]d202a7c2012-01-04 07:53:471620int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111621 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201622 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111623 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511624 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201625 return i;
1626 }
1627 return -1;
1628}
[email protected]cbab76d2008-10-13 22:42:471629
[email protected]d202a7c2012-01-04 07:53:471630NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471631 if (transient_entry_index_ == -1)
1632 return NULL;
1633 return entries_[transient_entry_index_].get();
1634}
[email protected]e1cd5452010-08-26 18:03:251635
[email protected]0b684262013-02-20 02:18:211636void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1637 // Discard any current transient entry, we can only have one at a time.
1638 int index = 0;
1639 if (last_committed_entry_index_ != -1)
1640 index = last_committed_entry_index_ + 1;
1641 DiscardTransientEntry();
1642 entries_.insert(
1643 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1644 NavigationEntryImpl::FromNavigationEntry(entry)));
1645 transient_entry_index_ = index;
1646 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
1647}
1648
[email protected]d202a7c2012-01-04 07:53:471649void NavigationControllerImpl::InsertEntriesFrom(
1650 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251651 int max_index) {
[email protected]a26023822011-12-29 00:23:551652 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251653 size_t insert_index = 0;
1654 for (int i = 0; i < max_index; i++) {
1655 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041656 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211657 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251658 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231659 linked_ptr<NavigationEntryImpl>(
1660 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251661 }
1662 }
1663}
[email protected]c5b88d82012-10-06 17:03:331664
1665void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1666 const base::Callback<base::Time()>& get_timestamp_callback) {
1667 get_timestamp_callback_ = get_timestamp_callback;
1668}
[email protected]8ff00d72012-10-23 19:12:211669
[email protected]8ff00d72012-10-23 19:12:211670} // namespace content