blob: 91dbd4390ddbe120f99405b77c592d621c35a015 [file] [log] [blame]
[email protected]d4a8ca482013-10-30 21:06:401// Copyright 2013 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]d4a8ca482013-10-30 21:06:405#include "content/browser/frame_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
[email protected]e11f0e92013-06-12 15:12:038#include "base/debug/trace_event.h"
initial.commit09911bf2008-07-26 23:55:299#include "base/logging.h"
[email protected]348fbaac2013-06-11 06:31:5110#include "base/strings/string_number_conversions.h" // Temporary
11#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0012#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3713#include "base/time/time.h"
[email protected]825b1662012-03-12 19:07:3114#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4115#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0416#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4017#include "content/browser/frame_host/debug_urls.h"
18#include "content/browser/frame_host/interstitial_page_impl.h"
19#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2620#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
[email protected]b3c41c0b2012-03-06 15:48:3221#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3322#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2223#include "content/common/frame_messages.h"
[email protected]0aed2f52011-03-23 18:06:3624#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1125#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1926#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4627#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0028#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3829#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1630#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5831#include "content/public/browser/render_widget_host.h"
32#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3433#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3834#include "content/public/browser/user_metrics.h"
[email protected]d1198fd2012-08-13 22:50:1935#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3836#include "content/public/common/content_constants.h"
[email protected]d1ef81d2012-07-24 11:39:3637#include "content/public/common/url_constants.h"
[email protected]a23de8572009-06-03 02:16:3238#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1639#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3240#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5841#include "skia/ext/platform_canvas.h"
initial.commit09911bf2008-07-26 23:55:2942
[email protected]8ff00d72012-10-23 19:12:2143namespace content {
[email protected]e9ba4472008-09-14 15:42:4344namespace {
45
[email protected]93f230e02011-06-01 14:40:0046const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3747
[email protected]e9ba4472008-09-14 15:42:4348// Invoked when entries have been pruned, or removed. For example, if the
49// current entries are [google, digg, yahoo], with the current entry google,
50// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4751void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4952 bool from_front,
53 int count) {
[email protected]8ff00d72012-10-23 19:12:2154 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4955 details.from_front = from_front;
56 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2157 NotificationService::current()->Notify(
58 NOTIFICATION_NAV_LIST_PRUNED,
59 Source<NavigationController>(nav_controller),
60 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4361}
62
63// Ensure the given NavigationEntry has a valid state, so that WebKit does not
64// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3965//
[email protected]e9ba4472008-09-14 15:42:4366// An empty state is treated as a new navigation by WebKit, which would mean
67// losing the navigation entries and generating a new navigation entry after
68// this one. We don't want that. To avoid this we create a valid state which
69// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:0470void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
71 if (!entry->GetPageState().IsValid())
72 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4373}
74
[email protected]2ca1ea662012-10-04 02:26:3675NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
76 NavigationController::RestoreType type) {
77 switch (type) {
78 case NavigationController::RESTORE_CURRENT_SESSION:
79 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
80 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
81 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
82 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
83 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
84 }
85 NOTREACHED();
86 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
87}
88
[email protected]e9ba4472008-09-14 15:42:4389// Configure all the NavigationEntries in entries for restore. This resets
90// the transition type to reload and makes sure the content state isn't empty.
91void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2392 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]2ca1ea662012-10-04 02:26:3693 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:4394 for (size_t i = 0; i < entries->size(); ++i) {
95 // Use a transition type of reload so that we don't incorrectly increase
96 // the typed count.
[email protected]8ff00d72012-10-23 19:12:2197 (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:3698 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:4399 // NOTE(darin): This code is only needed for backwards compat.
[email protected]691aa2f2013-05-28 22:52:04100 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43101 }
102}
103
104// See NavigationController::IsURLInPageNavigation for how this works and why.
[email protected]ce760d742012-08-30 22:31:10105bool AreURLsInPageNavigation(const GURL& existing_url,
106 const GURL& new_url,
[email protected]b9d4dfdc2013-08-08 00:25:12107 bool renderer_says_in_page,
108 NavigationType navigation_type) {
[email protected]ce760d742012-08-30 22:31:10109 if (existing_url == new_url)
110 return renderer_says_in_page;
111
112 if (!new_url.has_ref()) {
[email protected]b9d4dfdc2013-08-08 00:25:12113 // When going back from the ref URL to the non ref one the navigation type
114 // is IN_PAGE.
115 return navigation_type == NAVIGATION_TYPE_IN_PAGE;
[email protected]192d8c5e2010-02-23 07:26:32116 }
[email protected]e9ba4472008-09-14 15:42:43117
118 url_canon::Replacements<char> replacements;
119 replacements.ClearRef();
120 return existing_url.ReplaceComponents(replacements) ==
121 new_url.ReplaceComponents(replacements);
122}
123
[email protected]bf70edce2012-06-20 22:32:22124// Determines whether or not we should be carrying over a user agent override
125// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21126bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22127 return last_entry && last_entry->GetIsOverridingUserAgent();
128}
129
[email protected]e9ba4472008-09-14 15:42:43130} // namespace
131
[email protected]d202a7c2012-01-04 07:53:47132// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29133
[email protected]9b51970d2011-12-09 23:10:23134const size_t kMaxEntryCountForTestingNotSet = -1;
135
[email protected]765b35502008-08-21 00:51:20136// static
[email protected]d202a7c2012-01-04 07:53:47137size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23138 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20139
[email protected]e6fec472013-05-14 05:29:02140// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20141// when testing.
142static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29143
[email protected]71fde352011-12-29 03:29:56144// static
[email protected]cdcb1dee2012-01-04 00:46:20145NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56146 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20147 const Referrer& referrer,
148 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56149 bool is_renderer_initiated,
150 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20151 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56152 // Allow the browser URL handler to rewrite the URL. This will, for example,
153 // remove "view-source:" from the beginning of the URL to get the URL that
154 // will actually be loaded. This real URL won't be shown to the user, just
155 // used internally.
156 GURL loaded_url(url);
157 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31158 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56159 &loaded_url, browser_context, &reverse_on_redirect);
160
161 NavigationEntryImpl* entry = new NavigationEntryImpl(
162 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56163 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56164 -1,
165 loaded_url,
166 referrer,
[email protected]fcf75d42013-12-03 20:11:26167 base::string16(),
[email protected]71fde352011-12-29 03:29:56168 transition,
169 is_renderer_initiated);
170 entry->SetVirtualURL(url);
171 entry->set_user_typed_url(url);
172 entry->set_update_virtual_url_with_url(reverse_on_redirect);
173 entry->set_extra_headers(extra_headers);
174 return entry;
175}
176
[email protected]cdcb1dee2012-01-04 00:46:20177// static
178void NavigationController::DisablePromptOnRepost() {
179 g_check_for_repost = false;
180}
181
[email protected]c5b88d82012-10-06 17:03:33182base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
183 base::Time t) {
184 // If |t| is between the water marks, we're in a run of duplicates
185 // or just getting out of it, so increase the high-water mark to get
186 // a time that probably hasn't been used before and return it.
187 if (low_water_mark_ <= t && t <= high_water_mark_) {
188 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
189 return high_water_mark_;
190 }
191
192 // Otherwise, we're clear of the last duplicate run, so reset the
193 // water marks.
194 low_water_mark_ = high_water_mark_ = t;
195 return t;
196}
197
[email protected]d202a7c2012-01-04 07:53:47198NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57199 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19200 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37201 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20202 pending_entry_(NULL),
203 last_committed_entry_index_(-1),
204 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47205 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57206 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29207 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22208 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57209 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09210 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28211 in_navigate_to_pending_entry_(false),
[email protected]c5b88d82012-10-06 17:03:33212 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31213 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]d1581d72013-11-05 19:11:26214 screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37215 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29216}
217
[email protected]d202a7c2012-01-04 07:53:47218NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47219 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29220}
221
[email protected]d202a7c2012-01-04 07:53:47222WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57223 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32224}
225
[email protected]d202a7c2012-01-04 07:53:47226BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55227 return browser_context_;
228}
229
[email protected]d202a7c2012-01-04 07:53:47230void NavigationControllerImpl::SetBrowserContext(
231 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20232 browser_context_ = browser_context;
233}
234
[email protected]d202a7c2012-01-04 07:53:47235void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30236 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36237 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23238 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57239 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55240 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57241 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14242 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57243
[email protected]ce3fa3c2009-04-20 19:55:57244 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04245 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23246 NavigationEntryImpl* entry =
247 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
248 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04249 }
[email protected]03838e22011-06-06 15:27:14250 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57251
252 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36253 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57254}
255
[email protected]d202a7c2012-01-04 07:53:47256void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16257 ReloadInternal(check_for_repost, RELOAD);
258}
[email protected]d202a7c2012-01-04 07:53:47259void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16260 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
261}
[email protected]7c16976c2012-08-04 02:38:23262void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
263 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
264}
[email protected]1ccb3568d2010-02-19 10:51:16265
[email protected]d202a7c2012-01-04 07:53:47266void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
267 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36268 if (transient_entry_index_ != -1) {
269 // If an interstitial is showing, treat a reload as a navigation to the
270 // transient entry's URL.
[email protected]6286a3792013-10-09 04:03:27271 NavigationEntryImpl* transient_entry =
272 NavigationEntryImpl::FromNavigationEntry(GetTransientEntry());
273 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36274 return;
[email protected]6286a3792013-10-09 04:03:27275 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21276 Referrer(),
277 PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27278 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47279 return;
[email protected]669e0ba2012-08-30 23:57:36280 }
[email protected]cbab76d2008-10-13 22:42:47281
[email protected]59167c22013-06-03 18:07:32282 NavigationEntryImpl* entry = NULL;
283 int current_index = -1;
284
285 // If we are reloading the initial navigation, just use the current
286 // pending entry. Otherwise look up the current entry.
287 if (IsInitialNavigation() && pending_entry_) {
288 entry = pending_entry_;
289 // The pending entry might be in entries_ (e.g., after a Clone), so we
290 // should also update the current_index.
291 current_index = pending_entry_index_;
292 } else {
293 DiscardNonCommittedEntriesInternal();
294 current_index = GetCurrentEntryIndex();
295 if (current_index != -1) {
296 entry = NavigationEntryImpl::FromNavigationEntry(
297 GetEntryAtIndex(current_index));
298 }
[email protected]979a4bc2013-04-24 01:27:15299 }
[email protected]241db352013-04-22 18:04:05300
[email protected]59167c22013-06-03 18:07:32301 // If we are no where, then we can't reload. TODO(darin): We should add a
302 // CanReload method.
303 if (!entry)
304 return;
305
[email protected]eaaba7dd2013-10-14 02:38:07306 if (reload_type == NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL &&
307 entry->GetOriginalRequestURL().is_valid() && !entry->GetHasPostData()) {
308 // We may have been redirected when navigating to the current URL.
309 // Use the URL the user originally intended to visit, if it's valid and if a
310 // POST wasn't involved; the latter case avoids issues with sending data to
311 // the wrong page.
312 entry->SetURL(entry->GetOriginalRequestURL());
[email protected]25cd5f12014-01-10 11:02:20313 entry->SetReferrer(Referrer());
[email protected]eaaba7dd2013-10-14 02:38:07314 }
315
[email protected]cdcb1dee2012-01-04 00:46:20316 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32317 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30318 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07319 // they really want to do this. If they do, the dialog will call us back
320 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57321 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02322
[email protected]106a0812010-03-18 00:15:12323 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57324 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29325 } else {
[email protected]59167c22013-06-03 18:07:32326 if (!IsInitialNavigation())
327 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26328
[email protected]bcd904482012-02-01 01:54:22329 // If we are reloading an entry that no longer belongs to the current
330 // site instance (for example, refreshing a page for just installed app),
331 // the reload must happen in a new process.
332 // The new entry must have a new page_id and site instance, so it behaves
333 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30334 // Tabs that are discarded due to low memory conditions may not have a site
335 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32336 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21337 // Permit reloading guests without further checks.
[email protected]1150f102013-12-18 13:58:08338 bool is_guest = site_instance && site_instance->HasProcess() &&
[email protected]fb4cc8e2013-12-17 17:56:21339 site_instance->GetProcess()->IsGuest();
340 if (!is_guest && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30341 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22342 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22343 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22344 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
345 CreateNavigationEntry(
346 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
347 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26348
[email protected]11535962012-02-09 21:02:10349 // Mark the reload type as NO_RELOAD, so navigation will not be considered
350 // a reload in the renderer.
351 reload_type = NavigationController::NO_RELOAD;
352
[email protected]e2caa032012-11-15 23:29:18353 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22354 pending_entry_ = nav_entry;
355 } else {
[email protected]59167c22013-06-03 18:07:32356 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22357 pending_entry_index_ = current_index;
358
359 // The title of the page being reloaded might have been removed in the
360 // meanwhile, so we need to revert to the default title upon reload and
361 // invalidate the previously cached title (SetTitle will do both).
362 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26363 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22364
[email protected]59167c22013-06-03 18:07:32365 pending_entry_->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22366 }
367
[email protected]1ccb3568d2010-02-19 10:51:16368 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29369 }
370}
371
[email protected]d202a7c2012-01-04 07:53:47372void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12373 DCHECK(pending_reload_ != NO_RELOAD);
374 pending_reload_ = NO_RELOAD;
375}
376
[email protected]d202a7c2012-01-04 07:53:47377void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12378 if (pending_reload_ == NO_RELOAD) {
379 NOTREACHED();
380 } else {
381 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02382 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12383 }
384}
385
[email protected]cd2e15742013-03-08 04:08:31386bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09387 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11388}
389
[email protected]d202a7c2012-01-04 07:53:47390NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33391 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11392 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20393 return (index != -1) ? entries_[index].get() : NULL;
394}
395
[email protected]d202a7c2012-01-04 07:53:47396void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]765b35502008-08-21 00:51:20397 // When navigating to a new page, we don't know for sure if we will actually
398 // end up leaving the current page. The new page load could for example
399 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]59167c22013-06-03 18:07:32400 SetPendingEntry(entry);
401 NavigateToPendingEntry(NO_RELOAD);
402}
403
404void NavigationControllerImpl::SetPendingEntry(NavigationEntryImpl* entry) {
[email protected]cbab76d2008-10-13 22:42:47405 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20406 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21407 NotificationService::current()->Notify(
408 NOTIFICATION_NAV_ENTRY_PENDING,
409 Source<NavigationController>(this),
410 Details<NavigationEntry>(entry));
[email protected]765b35502008-08-21 00:51:20411}
412
[email protected]d202a7c2012-01-04 07:53:47413NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47414 if (transient_entry_index_ != -1)
415 return entries_[transient_entry_index_].get();
416 if (pending_entry_)
417 return pending_entry_;
418 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20419}
420
[email protected]d202a7c2012-01-04 07:53:47421NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19422 if (transient_entry_index_ != -1)
423 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32424 // The pending entry is safe to return for new (non-history), browser-
425 // initiated navigations. Most renderer-initiated navigations should not
426 // show the pending entry, to prevent URL spoof attacks.
427 //
428 // We make an exception for renderer-initiated navigations in new tabs, as
429 // long as no other page has tried to access the initial empty document in
430 // the new tab. If another page modifies this blank page, a URL spoof is
431 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32432 bool safe_to_show_pending =
433 pending_entry_ &&
434 // Require a new navigation.
[email protected]36fc0392011-12-25 03:59:51435 pending_entry_->GetPageID() == -1 &&
[email protected]59167c22013-06-03 18:07:32436 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46437 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32438
439 // Also allow showing the pending entry for history navigations in a new tab,
440 // such as Ctrl+Back. In this case, no existing page is visible and no one
441 // can script the new tab before it commits.
442 if (!safe_to_show_pending &&
443 pending_entry_ &&
444 pending_entry_->GetPageID() != -1 &&
445 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34446 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32447 safe_to_show_pending = true;
448
449 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19450 return pending_entry_;
451 return GetLastCommittedEntry();
452}
453
[email protected]d202a7c2012-01-04 07:53:47454int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47455 if (transient_entry_index_ != -1)
456 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20457 if (pending_entry_index_ != -1)
458 return pending_entry_index_;
459 return last_committed_entry_index_;
460}
461
[email protected]d202a7c2012-01-04 07:53:47462NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20463 if (last_committed_entry_index_ == -1)
464 return NULL;
465 return entries_[last_committed_entry_index_].get();
466}
467
[email protected]d202a7c2012-01-04 07:53:47468bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57469 const std::string& mime_type = delegate_->GetContentsMimeType();
[email protected]9d86c4982013-01-09 00:38:34470 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
471 !net::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27472 NavigationEntry* visible_entry = GetVisibleEntry();
473 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57474 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16475}
476
[email protected]d202a7c2012-01-04 07:53:47477int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55478 return last_committed_entry_index_;
479}
480
[email protected]d202a7c2012-01-04 07:53:47481int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25482 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55483 return static_cast<int>(entries_.size());
484}
485
[email protected]d202a7c2012-01-04 07:53:47486NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25487 int index) const {
488 return entries_.at(index).get();
489}
490
[email protected]d202a7c2012-01-04 07:53:47491NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25492 int offset) const {
[email protected]9ba14052012-06-22 23:50:03493 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55494 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20495 return NULL;
496
497 return entries_[index].get();
498}
499
[email protected]9ba14052012-06-22 23:50:03500int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46501 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03502}
503
[email protected]9677a3c2012-12-22 04:18:58504void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10505 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58506}
507
[email protected]1a3f5312013-04-26 21:00:10508void NavigationControllerImpl::SetScreenshotManager(
[email protected]d1581d72013-11-05 19:11:26509 NavigationEntryScreenshotManager* manager) {
[email protected]1a3f5312013-04-26 21:00:10510 screenshot_manager_.reset(manager ? manager :
[email protected]d1581d72013-11-05 19:11:26511 new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58512}
513
[email protected]d202a7c2012-01-04 07:53:47514bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20515 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
516}
517
[email protected]d202a7c2012-01-04 07:53:47518bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20519 int index = GetCurrentEntryIndex();
520 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
521}
522
[email protected]9ba14052012-06-22 23:50:03523bool NavigationControllerImpl::CanGoToOffset(int offset) const {
524 int index = GetIndexForOffset(offset);
525 return index >= 0 && index < GetEntryCount();
526}
527
[email protected]d202a7c2012-01-04 07:53:47528void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20529 if (!CanGoBack()) {
530 NOTREACHED();
531 return;
532 }
533
534 // Base the navigation on where we are now...
535 int current_index = GetCurrentEntryIndex();
536
[email protected]cbab76d2008-10-13 22:42:47537 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20538
539 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25540 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21541 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51542 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21543 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16544 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20545}
546
[email protected]d202a7c2012-01-04 07:53:47547void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20548 if (!CanGoForward()) {
549 NOTREACHED();
550 return;
551 }
552
[email protected]cbab76d2008-10-13 22:42:47553 bool transient = (transient_entry_index_ != -1);
554
[email protected]765b35502008-08-21 00:51:20555 // Base the navigation on where we are now...
556 int current_index = GetCurrentEntryIndex();
557
[email protected]cbab76d2008-10-13 22:42:47558 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20559
[email protected]cbab76d2008-10-13 22:42:47560 pending_entry_index_ = current_index;
561 // If there was a transient entry, we removed it making the current index
562 // the next page.
563 if (!transient)
564 pending_entry_index_++;
565
[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::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20574 if (index < 0 || index >= static_cast<int>(entries_.size())) {
575 NOTREACHED();
576 return;
577 }
578
[email protected]cbab76d2008-10-13 22:42:47579 if (transient_entry_index_ != -1) {
580 if (index == transient_entry_index_) {
581 // Nothing to do when navigating to the transient.
582 return;
583 }
584 if (index > transient_entry_index_) {
585 // Removing the transient is goint to shift all entries by 1.
586 index--;
587 }
588 }
589
590 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20591
592 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25593 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21594 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51595 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21596 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16597 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20598}
599
[email protected]d202a7c2012-01-04 07:53:47600void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03601 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20602 return;
603
[email protected]9ba14052012-06-22 23:50:03604 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20605}
606
[email protected]41374f12013-07-24 02:49:28607bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
608 if (index == last_committed_entry_index_ ||
609 index == pending_entry_index_)
610 return false;
[email protected]6a13a6c2011-12-20 21:47:12611
[email protected]43032342011-03-21 14:10:31612 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28613 return true;
[email protected]cbab76d2008-10-13 22:42:47614}
615
[email protected]d202a7c2012-01-04 07:53:47616void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23617 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32618 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31619 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51620 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
621 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32622 }
623}
624
[email protected]d202a7c2012-01-04 07:53:47625void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47626 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21627 const Referrer& referrer,
628 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47629 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47630 LoadURLParams params(url);
631 params.referrer = referrer;
632 params.transition_type = transition;
633 params.extra_headers = extra_headers;
634 LoadURLWithParams(params);
635}
636
637void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]e11f0e92013-06-12 15:12:03638 TRACE_EVENT0("browser", "NavigationControllerImpl::LoadURLWithParams");
[email protected]8ff00d72012-10-23 19:12:21639 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18640 return;
641
[email protected]c02f1ba2014-02-03 06:53:53642 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
[email protected]c21e5c22014-02-05 23:56:41643 // renderer process is not live, unless it is the initial navigation of the
644 // tab.
[email protected]c02f1ba2014-02-03 06:53:53645 if (IsRendererDebugURL(params.url)) {
646 // TODO(creis): Find the RVH for the correct frame.
[email protected]c21e5c22014-02-05 23:56:41647 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
648 !IsInitialNavigation())
[email protected]c02f1ba2014-02-03 06:53:53649 return;
650 }
651
[email protected]cf002332012-08-14 19:17:47652 // Checks based on params.load_type.
653 switch (params.load_type) {
654 case LOAD_TYPE_DEFAULT:
655 break;
656 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e9a82042013-09-15 03:38:29657 if (!params.url.SchemeIs(kHttpScheme) &&
[email protected]4654bfe2013-08-26 03:36:58658 !params.url.SchemeIs(kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47659 NOTREACHED() << "Http post load must use http(s) scheme.";
660 return;
661 }
662 break;
663 case LOAD_TYPE_DATA:
[email protected]44495c482014-01-26 10:15:06664 if (!params.url.SchemeIs(kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47665 NOTREACHED() << "Data load must use data scheme.";
666 return;
667 }
668 break;
669 default:
670 NOTREACHED();
671 break;
672 };
[email protected]e47ae9472011-10-13 19:48:34673
[email protected]e47ae9472011-10-13 19:48:34674 // The user initiated a load, we don't need to reload anymore.
675 needs_reload_ = false;
676
[email protected]cf002332012-08-14 19:17:47677 bool override = false;
678 switch (params.override_user_agent) {
679 case UA_OVERRIDE_INHERIT:
680 override = ShouldKeepOverride(GetLastCommittedEntry());
681 break;
682 case UA_OVERRIDE_TRUE:
683 override = true;
684 break;
685 case UA_OVERRIDE_FALSE:
686 override = false;
687 break;
688 default:
689 NOTREACHED();
690 break;
[email protected]d1ef81d2012-07-24 11:39:36691 }
692
[email protected]d1ef81d2012-07-24 11:39:36693 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
694 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47695 params.url,
696 params.referrer,
697 params.transition_type,
698 params.is_renderer_initiated,
699 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36700 browser_context_));
[email protected]c80297782013-11-21 07:10:16701 if (params.frame_tree_node_id != -1)
702 entry->set_frame_tree_node_id(params.frame_tree_node_id);
[email protected]f8872902013-10-30 03:18:57703 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21704 entry->SetRedirectChain(params.redirect_chain);
[email protected]866fa2cc2013-07-22 22:19:52705 if (params.should_replace_current_entry)
[email protected]e2caa032012-11-15 23:29:18706 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13707 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47708 entry->SetIsOverridingUserAgent(override);
709 entry->set_transferred_global_request_id(
710 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37711 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36712
[email protected]cf002332012-08-14 19:17:47713 switch (params.load_type) {
714 case LOAD_TYPE_DEFAULT:
715 break;
716 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
717 entry->SetHasPostData(true);
718 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46719 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47720 break;
721 case LOAD_TYPE_DATA:
722 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
723 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37724 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47725 break;
726 default:
727 NOTREACHED();
728 break;
729 };
[email protected]132e281a2012-07-31 18:32:44730
731 LoadEntry(entry);
732}
733
[email protected]d202a7c2012-01-04 07:53:47734bool NavigationControllerImpl::RendererDidNavigate(
[email protected]27dd82fd2014-03-03 22:11:43735 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:22736 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21737 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31738 is_initial_navigation_ = false;
739
[email protected]0e8db942008-09-24 21:21:48740 // Save the previous state before we clobber it.
741 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51742 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55743 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48744 } else {
745 details->previous_url = GURL();
746 details->previous_entry_index = -1;
747 }
[email protected]ecd9d8702008-08-28 22:10:17748
[email protected]77362eb2011-08-01 17:18:38749 // If we have a pending entry at this point, it should have a SiteInstance.
750 // Restored entries start out with a null SiteInstance, but we should have
751 // assigned one in NavigateToPendingEntry.
752 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43753
[email protected]bcd904482012-02-01 01:54:22754 // If we are doing a cross-site reload, we need to replace the existing
755 // navigation entry, not add another entry to the history. This has the side
756 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18757 // Or if we are doing a cross-site redirect navigation,
758 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59759 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18760 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22761
[email protected]e9ba4472008-09-14 15:42:43762 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43763 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20764
[email protected]b9d4dfdc2013-08-08 00:25:12765 // is_in_page must be computed before the entry gets committed.
766 details->is_in_page = IsURLInPageNavigation(
767 params.url, params.was_within_same_page, details->type);
768
[email protected]0e8db942008-09-24 21:21:48769 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21770 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43771 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43772 break;
[email protected]8ff00d72012-10-23 19:12:21773 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43774 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43775 break;
[email protected]8ff00d72012-10-23 19:12:21776 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43777 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43778 break;
[email protected]8ff00d72012-10-23 19:12:21779 case NAVIGATION_TYPE_IN_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43780 RendererDidNavigateInPage(rfh, params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43781 break;
[email protected]8ff00d72012-10-23 19:12:21782 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43783 RendererDidNavigateNewSubframe(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43784 break;
[email protected]8ff00d72012-10-23 19:12:21785 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43786 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43787 return false;
788 break;
[email protected]8ff00d72012-10-23 19:12:21789 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49790 // If a pending navigation was in progress, this canceled it. We should
791 // discard it and make sure it is removed from the URL bar. After that,
792 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43793 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49794 if (pending_entry_) {
795 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57796 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49797 }
[email protected]e9ba4472008-09-14 15:42:43798 return false;
799 default:
800 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20801 }
802
[email protected]688aa65c62012-09-28 04:32:22803 // At this point, we know that the navigation has just completed, so
804 // record the time.
805 //
806 // TODO(akalin): Use "sane time" as described in
807 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33808 base::Time timestamp =
809 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
810 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22811 << timestamp.ToInternalValue();
812
[email protected]f233e4232013-02-23 00:55:14813 // We should not have a pending entry anymore. Clear it again in case any
814 // error cases above forgot to do so.
815 DiscardNonCommittedEntriesInternal();
816
[email protected]e9ba4472008-09-14 15:42:43817 // All committed entries should have nonempty content state so WebKit doesn't
818 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04819 DCHECK(params.page_state.IsValid());
[email protected]10f417c52011-12-28 21:04:23820 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14821 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22822 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44823 active_entry->SetHttpStatusCode(params.http_status_code);
[email protected]691aa2f2013-05-28 22:52:04824 active_entry->SetPageState(params.page_state);
[email protected]c1982ff2014-04-23 03:37:21825 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44826
[email protected]97d8f0d2013-10-29 16:49:21827 // Once it is committed, we no longer need to track several pieces of state on
828 // the entry.
829 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13830
[email protected]49bd30e62011-03-22 20:12:59831 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22832 // TODO(creis): This check won't pass for subframes until we create entries
833 // for subframe navigations.
834 if (PageTransitionIsMainFrame(params.transition))
[email protected]27dd82fd2014-03-03 22:11:43835 CHECK(active_entry->site_instance() == rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59836
[email protected]b26de072013-02-23 02:33:44837 // Remember the bindings the renderer process has at this point, so that
838 // we do not grant this entry additional bindings if we come back to it.
[email protected]27dd82fd2014-03-03 22:11:43839 active_entry->SetBindings(
840 static_cast<RenderFrameHostImpl*>(rfh)->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44841
[email protected]e9ba4472008-09-14 15:42:43842 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00843 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58844 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21845 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24846 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31847 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00848 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29849
[email protected]e9ba4472008-09-14 15:42:43850 return true;
initial.commit09911bf2008-07-26 23:55:29851}
852
[email protected]8ff00d72012-10-23 19:12:21853NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]27dd82fd2014-03-03 22:11:43854 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:22855 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43856 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46857 // The renderer generates the page IDs, and so if it gives us the invalid
858 // page ID (-1) we know it didn't actually navigate. This happens in a few
859 // cases:
860 //
861 // - If a page makes a popup navigated to about blank, and then writes
862 // stuff like a subframe navigated to a real page. We'll get the commit
863 // for the subframe, but there won't be any commit for the outer page.
864 //
865 // - We were also getting these for failed loads (for example, bug 21849).
866 // The guess is that we get a "load commit" for the alternate error page,
867 // but that doesn't affect the page ID, so we get the "old" one, which
868 // could be invalid. This can also happen for a cross-site transition
869 // that causes us to swap processes. Then the error page load will be in
870 // a new process with no page IDs ever assigned (and hence a -1 value),
871 // yet the navigation controller still might have previous pages in its
872 // list.
873 //
874 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21875 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43876 }
877
[email protected]a1b99262013-12-27 21:56:22878 if (params.page_id > delegate_->GetMaxPageIDForSiteInstance(
[email protected]27dd82fd2014-03-03 22:11:43879 rfh->GetSiteInstance())) {
[email protected]e9ba4472008-09-14 15:42:43880 // Greater page IDs than we've ever seen before are new pages. We may or may
881 // not have a pending entry for the page, and this may or may not be the
882 // main frame.
[email protected]8ff00d72012-10-23 19:12:21883 if (PageTransitionIsMainFrame(params.transition))
884 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09885
886 // When this is a new subframe navigation, we should have a committed page
887 // for which it's a suframe in. This may not be the case when an iframe is
888 // navigated on a popup navigated to about:blank (the iframe would be
889 // written into the popup by script on the main page). For these cases,
890 // there isn't any navigation stuff we can do, so just ignore it.
891 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21892 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09893
894 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21895 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43896 }
897
[email protected]60d6cca2013-04-30 08:47:13898 // We only clear the session history when navigating to a new page.
899 DCHECK(!params.history_list_was_cleared);
900
[email protected]e9ba4472008-09-14 15:42:43901 // Now we know that the notification is for an existing page. Find that entry.
902 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]27dd82fd2014-03-03 22:11:43903 rfh->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43904 params.page_id);
905 if (existing_entry_index == -1) {
906 // The page was not found. It could have been pruned because of the limit on
907 // back/forward entries (not likely since we'll usually tell it to navigate
908 // to such entries). It could also mean that the renderer is smoking crack.
909 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46910
911 // Because the unknown entry has committed, we risk showing the wrong URL in
912 // release builds. Instead, we'll kill the renderer process to be safe.
913 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]e6e30ac2014-01-13 21:24:39914 RecordAction(base::UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52915
[email protected]7ec6f382011-11-11 01:28:17916 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10917 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
918 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17919 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52920 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17921 temp.append("#max");
[email protected]ec6c05f2013-10-23 18:41:57922 temp.append(base::IntToString(delegate_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17923 temp.append("#frame");
[email protected]27dd82fd2014-03-03 22:11:43924 temp.append(base::IntToString(rfh->GetRoutingID()));
[email protected]7ec6f382011-11-11 01:28:17925 temp.append("#ids");
926 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10927 // Append entry metadata (e.g., 3_7x):
928 // 3: page_id
929 // 7: SiteInstance ID, or N for null
930 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51931 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10932 temp.append("_");
933 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33934 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17935 else
[email protected]8c380582011-12-02 03:16:10936 temp.append("N");
[email protected]27dd82fd2014-03-03 22:11:43937 if (entries_[i]->site_instance() != rfh->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17938 temp.append("x");
939 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52940 }
941 GURL url(temp);
[email protected]27dd82fd2014-03-03 22:11:43942 static_cast<RenderFrameHostImpl*>(rfh)->render_view_host()->Send(
[email protected]a1b99262013-12-27 21:56:22943 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21944 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43945 }
[email protected]10f417c52011-12-28 21:04:23946 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43947
[email protected]8ff00d72012-10-23 19:12:21948 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52949 // All manual subframes would get new IDs and were handled above, so we
950 // know this is auto. Since the current page was found in the navigation
951 // entry list, we're guaranteed to have a last committed entry.
952 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21953 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52954 }
955
956 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43957 if (pending_entry_ &&
[email protected]59167c22013-06-03 18:07:32958 !pending_entry_->is_renderer_initiated() &&
[email protected]e9ba4472008-09-14 15:42:43959 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51960 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24961 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43962 // In this case, we have a pending entry for a URL but WebCore didn't do a
963 // new navigation. This happens when you press enter in the URL bar to
964 // reload. We will create a pending entry, but WebKit will convert it to
965 // a reload since it's the same page and not create a new entry for it
966 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24967 // this). If this matches the last committed entry, we want to just ignore
968 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21969 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43970 }
971
[email protected]fc60f222008-12-18 17:36:54972 // Any toplevel navigations with the same base (minus the reference fragment)
973 // are in-page navigations. We weeded out subframe navigations above. Most of
974 // the time this doesn't matter since WebKit doesn't tell us about subframe
975 // navigations that don't actually navigate, but it can happen when there is
976 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59977 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
[email protected]b9d4dfdc2013-08-08 00:25:12978 params.was_within_same_page,
979 NAVIGATION_TYPE_UNKNOWN)) {
[email protected]8ff00d72012-10-23 19:12:21980 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59981 }
[email protected]fc60f222008-12-18 17:36:54982
[email protected]e9ba4472008-09-14 15:42:43983 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09984 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21985 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43986}
987
[email protected]d202a7c2012-01-04 07:53:47988void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]27dd82fd2014-03-03 22:11:43989 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:22990 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:22991 bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23992 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41993 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34994 // Only make a copy of the pending entry if it is appropriate for the new page
995 // that was just loaded. We verify this at a coarse grain by checking that
996 // the SiteInstance hasn't been assigned to something else.
997 if (pending_entry_ &&
998 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:43999 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:231000 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:431001
1002 // Don't use the page type from the pending entry. Some interstitial page
1003 // may have set the type to interstitial. Once we commit, however, the page
1004 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:211005 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:411006 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431007 } else {
[email protected]10f417c52011-12-28 21:04:231008 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:241009
1010 // Find out whether the new entry needs to update its virtual URL on URL
1011 // change and set up the entry accordingly. This is needed to correctly
1012 // update the virtual URL when replaceState is called after a pushState.
1013 GURL url = params.url;
1014 bool needs_update = false;
1015 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1016 &url, browser_context_, &needs_update);
1017 new_entry->set_update_virtual_url_with_url(needs_update);
1018
[email protected]f1eb87a2011-05-06 17:49:411019 // When navigating to a new page, give the browser URL handler a chance to
1020 // update the virtual URL based on the new URL. For example, this is needed
1021 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1022 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241023 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431024 }
1025
[email protected]ad23a092011-12-28 07:02:041026 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411027 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:321028 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:251029 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511030 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251031 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331032 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431033 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511034 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051035 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231036 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221037 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431038
[email protected]60d6cca2013-04-30 08:47:131039 DCHECK(!params.history_list_was_cleared || !replace_entry);
1040 // The browser requested to clear the session history when it initiated the
1041 // navigation. Now we know that the renderer has updated its state accordingly
1042 // and it is safe to also clear the browser side history.
1043 if (params.history_list_was_cleared) {
1044 DiscardNonCommittedEntriesInternal();
1045 entries_.clear();
1046 last_committed_entry_index_ = -1;
1047 }
1048
[email protected]4ac5fbe2012-09-01 02:19:591049 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:431050}
1051
[email protected]d202a7c2012-01-04 07:53:471052void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]27dd82fd2014-03-03 22:11:431053 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:221054 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431055 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:211056 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:431057
1058 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091059 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1060 // with new information from the renderer.
[email protected]27dd82fd2014-03-03 22:11:431061 int entry_index = GetEntryIndexWithPageID(rfh->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111062 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431063 DCHECK(entry_index >= 0 &&
1064 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231065 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431066
[email protected]5ccd4dc2012-10-24 02:28:141067 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041068 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201069 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321070 if (entry->update_virtual_url_with_url())
1071 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141072
1073 // The redirected to page should not inherit the favicon from the previous
1074 // page.
1075 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481076 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141077
1078 // The site instance will normally be the same except during session restore,
1079 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431080 DCHECK(entry->site_instance() == NULL ||
[email protected]27dd82fd2014-03-03 22:11:431081 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331082 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431083 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431084
[email protected]36fc0392011-12-25 03:59:511085 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051086 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411087
[email protected]e9ba4472008-09-14 15:42:431088 // The entry we found in the list might be pending if the user hit
1089 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591090 // list, we can just discard the pending pointer). We should also discard the
1091 // pending entry if it corresponds to a different navigation, since that one
1092 // is now likely canceled. If it is not canceled, we will treat it as a new
1093 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431094 //
1095 // Note that we need to use the "internal" version since we don't want to
1096 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491097 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391098
[email protected]80858db52009-10-15 00:35:181099 // If a transient entry was removed, the indices might have changed, so we
1100 // have to query the entry index again.
1101 last_committed_entry_index_ =
[email protected]27dd82fd2014-03-03 22:11:431102 GetEntryIndexWithPageID(rfh->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431103}
1104
[email protected]d202a7c2012-01-04 07:53:471105void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]27dd82fd2014-03-03 22:11:431106 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:221107 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431108 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091109 // entry for this page ID. This entry is guaranteed to exist by
1110 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231111 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]27dd82fd2014-03-03 22:11:431112 rfh->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431113
1114 // We assign the entry's unique ID to be that of the new one. Since this is
1115 // always the result of a user action, we want to dismiss infobars, etc. like
1116 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511117 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431118
[email protected]a0e69262009-06-03 19:08:481119 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321120 if (existing_entry->update_virtual_url_with_url())
1121 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041122 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201123 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481124
[email protected]b77686522013-12-11 20:34:191125 // The page may have been requested with a different HTTP method.
1126 existing_entry->SetHasPostData(params.is_post);
1127 existing_entry->SetPostID(params.post_id);
1128
[email protected]cbab76d2008-10-13 22:42:471129 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431130}
1131
[email protected]d202a7c2012-01-04 07:53:471132void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]27dd82fd2014-03-03 22:11:431133 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:221134 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221135 bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211136 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431137 "WebKit should only tell us about in-page navs for the main frame.";
1138 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231139 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]27dd82fd2014-03-03 22:11:431140 rfh->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431141
1142 // Reference fragment navigation. We're guaranteed to have the last_committed
1143 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031144 // reference fragments, of course). We'll update the URL of the existing
1145 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041146 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031147 if (existing_entry->update_virtual_url_with_url())
1148 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431149
1150 // This replaces the existing entry since the page ID didn't change.
1151 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031152
[email protected]6eebaab2012-11-15 04:39:491153 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031154
1155 // If a transient entry was removed, the indices might have changed, so we
1156 // have to query the entry index again.
1157 last_committed_entry_index_ =
[email protected]27dd82fd2014-03-03 22:11:431158 GetEntryIndexWithPageID(rfh->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431159}
1160
[email protected]d202a7c2012-01-04 07:53:471161void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]27dd82fd2014-03-03 22:11:431162 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:221163 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]026aac22013-07-10 02:09:111164 if (PageTransitionCoreTypeIs(params.transition,
1165 PAGE_TRANSITION_AUTO_SUBFRAME)) {
[email protected]09b8f82f2009-06-16 20:22:111166 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141167 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111168 return;
1169 }
[email protected]09b8f82f2009-06-16 20:22:111170
[email protected]e9ba4472008-09-14 15:42:431171 // Manual subframe navigations just get the current entry cloned so the user
1172 // can go back or forward to it. The actual subframe information will be
1173 // stored in the page state for each of those entries. This happens out of
1174 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091175 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1176 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231177 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1178 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511179 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451180 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431181}
1182
[email protected]d202a7c2012-01-04 07:53:471183bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]27dd82fd2014-03-03 22:11:431184 RenderFrameHost* rfh,
[email protected]37567b432014-02-12 01:12:221185 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431186 // We're guaranteed to have a previously committed entry, and we now need to
1187 // handle navigation inside of a subframe in it without creating a new entry.
1188 DCHECK(GetLastCommittedEntry());
1189
1190 // Handle the case where we're navigating back/forward to a previous subframe
1191 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1192 // header file. In case "1." this will be a NOP.
1193 int entry_index = GetEntryIndexWithPageID(
[email protected]27dd82fd2014-03-03 22:11:431194 rfh->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431195 params.page_id);
1196 if (entry_index < 0 ||
1197 entry_index >= static_cast<int>(entries_.size())) {
1198 NOTREACHED();
1199 return false;
1200 }
1201
1202 // Update the current navigation entry in case we're going back/forward.
1203 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431204 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141205 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431206 return true;
1207 }
[email protected]f233e4232013-02-23 00:55:141208
1209 // We do not need to discard the pending entry in this case, since we will
1210 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431211 return false;
1212}
1213
[email protected]d202a7c2012-01-04 07:53:471214int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231215 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201216 const NavigationEntries::const_iterator i(std::find(
1217 entries_.begin(),
1218 entries_.end(),
1219 entry));
1220 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1221}
1222
[email protected]ce760d742012-08-30 22:31:101223bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121224 const GURL& url,
1225 bool renderer_says_in_page,
1226 NavigationType navigation_type) const {
[email protected]10f417c52011-12-28 21:04:231227 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101228 return last_committed && AreURLsInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121229 last_committed->GetURL(), url, renderer_says_in_page, navigation_type);
[email protected]e9ba4472008-09-14 15:42:431230}
1231
[email protected]d202a7c2012-01-04 07:53:471232void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501233 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471234 const NavigationControllerImpl& source =
1235 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571236 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551237 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571238
[email protected]a26023822011-12-29 00:23:551239 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571240 return; // Nothing new to do.
1241
1242 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551243 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571244
[email protected]fdac6ade2013-07-20 01:06:301245 for (SessionStorageNamespaceMap::const_iterator it =
1246 source.session_storage_namespace_map_.begin();
1247 it != source.session_storage_namespace_map_.end();
1248 ++it) {
1249 SessionStorageNamespaceImpl* source_namespace =
1250 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1251 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1252 }
[email protected]4e6419c2010-01-15 04:50:341253
[email protected]2ca1ea662012-10-04 02:26:361254 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571255
1256 // Copy the max page id map from the old tab to the new tab. This ensures
1257 // that new and existing navigations in the tab's current SiteInstances
1258 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571259 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571260}
1261
[email protected]d202a7c2012-01-04 07:53:471262void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571263 NavigationController* temp,
1264 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161265 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011266 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161267
[email protected]d202a7c2012-01-04 07:53:471268 NavigationControllerImpl* source =
1269 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191270 // The SiteInstance and page_id of the last committed entry needs to be
1271 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571272 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1273 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231274 NavigationEntryImpl* last_committed =
1275 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571276 scoped_refptr<SiteInstance> site_instance(
[email protected]474f8512013-05-31 22:31:161277 last_committed->site_instance());
1278 int32 minimum_page_id = last_committed->GetPageID();
1279 int32 max_page_id =
[email protected]ec6c05f2013-10-23 18:41:571280 delegate_->GetMaxPageIDForSiteInstance(site_instance.get());
[email protected]e1cd5452010-08-26 18:03:251281
1282 // Remove all the entries leaving the active entry.
[email protected]79368982013-11-13 01:11:011283 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251284
[email protected]474f8512013-05-31 22:31:161285 // We now have one entry, possibly with a new pending entry. Ensure that
1286 // adding the entries from source won't put us over the limit.
1287 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571288 if (!replace_entry)
1289 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251290
[email protected]47e020a2010-10-15 14:43:371291 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]474f8512013-05-31 22:31:161292 // we don't want to copy over the transient entry. Ignore any pending entry,
1293 // since it has not committed in source.
1294 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251295 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551296 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251297 else
1298 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571299
1300 // Ignore the source's current entry if merging with replacement.
1301 // TODO(davidben): This should preserve entries forward of the current
1302 // too. http://crbug.com/317872
1303 if (replace_entry && max_source_index > 0)
1304 max_source_index--;
1305
[email protected]47e020a2010-10-15 14:43:371306 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251307
1308 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551309 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141310
[email protected]ec6c05f2013-10-23 18:41:571311 delegate_->SetHistoryLengthAndPrune(site_instance.get(),
1312 max_source_index,
1313 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571314
1315 // Copy the max page id map from the old tab to the new tab. This ensures
1316 // that new and existing navigations in the tab's current SiteInstances
1317 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571318 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
[email protected]f69ed362014-04-28 14:01:421319 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]91854cd2012-01-10 19:43:571320
1321 // If there is a last committed entry, be sure to include it in the new
1322 // max page ID map.
1323 if (max_page_id > -1) {
[email protected]ec6c05f2013-10-23 18:41:571324 delegate_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
1325 max_page_id);
[email protected]91854cd2012-01-10 19:43:571326 }
[email protected]e1cd5452010-08-26 18:03:251327}
1328
[email protected]79368982013-11-13 01:11:011329bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161330 // If there is no last committed entry, we cannot prune. Even if there is a
1331 // pending entry, it may not commit, leaving this WebContents blank, despite
1332 // possibly giving it new entries via CopyStateFromAndPrune.
1333 if (last_committed_entry_index_ == -1)
1334 return false;
[email protected]9350602e2013-02-26 23:27:441335
[email protected]474f8512013-05-31 22:31:161336 // We cannot prune if there is a pending entry at an existing entry index.
1337 // It may not commit, so we have to keep the last committed entry, and thus
1338 // there is no sensible place to keep the pending entry. It is ok to have
1339 // a new pending entry, which can optionally commit as a new navigation.
1340 if (pending_entry_index_ != -1)
1341 return false;
1342
1343 // We should not prune if we are currently showing a transient entry.
1344 if (transient_entry_index_ != -1)
1345 return false;
1346
1347 return true;
1348}
1349
[email protected]79368982013-11-13 01:11:011350void NavigationControllerImpl::PruneAllButLastCommitted() {
1351 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161352
1353 // We should still have a last committed entry.
1354 DCHECK_NE(-1, last_committed_entry_index_);
[email protected]9350602e2013-02-26 23:27:441355
[email protected]9350602e2013-02-26 23:27:441356 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1357 // SetHistoryLengthAndPrune, because it will create history_length additional
1358 // history entries.
1359 // TODO(jochen): This API is confusing and we should clean it up.
1360 // http://crbug.com/178491
[email protected]6286a3792013-10-09 04:03:271361 NavigationEntryImpl* entry =
1362 NavigationEntryImpl::FromNavigationEntry(GetVisibleEntry());
[email protected]ec6c05f2013-10-23 18:41:571363 delegate_->SetHistoryLengthAndPrune(
[email protected]9350602e2013-02-26 23:27:441364 entry->site_instance(), 0, entry->GetPageID());
1365}
1366
[email protected]79368982013-11-13 01:11:011367void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161368 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011369 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261370
[email protected]474f8512013-05-31 22:31:161371 // Erase all entries but the last committed entry. There may still be a
1372 // new pending entry after this.
1373 entries_.erase(entries_.begin(),
1374 entries_.begin() + last_committed_entry_index_);
1375 entries_.erase(entries_.begin() + 1, entries_.end());
1376 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261377}
1378
[email protected]15f46dc2013-01-24 05:40:241379void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101380 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241381}
1382
[email protected]d1198fd2012-08-13 22:50:191383void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301384 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211385 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191386 if (!session_storage_namespace)
1387 return;
1388
1389 // We can't overwrite an existing SessionStorage without violating spec.
1390 // Attempts to do so may give a tab access to another tab's session storage
1391 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301392 bool successful_insert = session_storage_namespace_map_.insert(
1393 make_pair(partition_id,
1394 static_cast<SessionStorageNamespaceImpl*>(
1395 session_storage_namespace)))
1396 .second;
1397 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191398}
1399
[email protected]d202a7c2012-01-04 07:53:471400void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561401 max_restored_page_id_ = max_id;
1402}
1403
[email protected]d202a7c2012-01-04 07:53:471404int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561405 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551406}
1407
[email protected]aa62afd2014-04-22 19:22:461408bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461409 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101410 !GetLastCommittedEntry() &&
1411 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461412}
1413
[email protected]a26023822011-12-29 00:23:551414SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301415NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1416 std::string partition_id;
1417 if (instance) {
1418 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1419 // this if statement so |instance| must not be NULL.
1420 partition_id =
1421 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1422 browser_context_, instance->GetSiteURL());
1423 }
[email protected]d1198fd2012-08-13 22:50:191424
[email protected]fdac6ade2013-07-20 01:06:301425 SessionStorageNamespaceMap::const_iterator it =
1426 session_storage_namespace_map_.find(partition_id);
1427 if (it != session_storage_namespace_map_.end())
1428 return it->second.get();
1429
1430 // Create one if no one has accessed session storage for this partition yet.
1431 //
1432 // TODO(ajwong): Should this use the |partition_id| directly rather than
1433 // re-lookup via |instance|? http://crbug.com/142685
1434 StoragePartition* partition =
1435 BrowserContext::GetStoragePartition(browser_context_, instance);
1436 SessionStorageNamespaceImpl* session_storage_namespace =
1437 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411438 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301439 partition->GetDOMStorageContext()));
1440 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1441
1442 return session_storage_namespace;
1443}
1444
1445SessionStorageNamespace*
1446NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1447 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1448 return GetSessionStorageNamespace(NULL);
1449}
1450
1451const SessionStorageNamespaceMap&
1452NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1453 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551454}
[email protected]d202a7c2012-01-04 07:53:471455
1456bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561457 return needs_reload_;
1458}
[email protected]a26023822011-12-29 00:23:551459
[email protected]46bb5e9c2013-10-03 22:16:471460void NavigationControllerImpl::SetNeedsReload() {
1461 needs_reload_ = true;
1462}
1463
[email protected]d202a7c2012-01-04 07:53:471464void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551465 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121466 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311467
1468 DiscardNonCommittedEntries();
1469
1470 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121471 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311472 last_committed_entry_index_--;
1473}
1474
[email protected]d202a7c2012-01-04 07:53:471475void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471476 bool transient = transient_entry_index_ != -1;
1477 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291478
[email protected]cbab76d2008-10-13 22:42:471479 // If there was a transient entry, invalidate everything so the new active
1480 // entry state is shown.
1481 if (transient) {
[email protected]ec6c05f2013-10-23 18:41:571482 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471483 }
initial.commit09911bf2008-07-26 23:55:291484}
1485
[email protected]d202a7c2012-01-04 07:53:471486NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251487 return pending_entry_;
1488}
1489
[email protected]d202a7c2012-01-04 07:53:471490int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551491 return pending_entry_index_;
1492}
1493
[email protected]d202a7c2012-01-04 07:53:471494void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1495 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211496 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201497
1498 // Copy the pending entry's unique ID to the committed entry.
1499 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231500 const NavigationEntryImpl* const pending_entry =
1501 (pending_entry_index_ == -1) ?
1502 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201503 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511504 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201505
[email protected]cbab76d2008-10-13 22:42:471506 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201507
1508 int current_size = static_cast<int>(entries_.size());
1509
[email protected]765b35502008-08-21 00:51:201510 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451511 // Prune any entries which are in front of the current entry.
1512 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311513 // last_committed_entry_index_ must be updated here since calls to
1514 // NotifyPrunedEntries() below may re-enter and we must make sure
1515 // last_committed_entry_index_ is not left in an invalid state.
1516 if (replace)
1517 --last_committed_entry_index_;
1518
[email protected]c12bf1a12008-09-17 16:28:491519 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311520 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491521 num_pruned++;
[email protected]765b35502008-08-21 00:51:201522 entries_.pop_back();
1523 current_size--;
1524 }
[email protected]c12bf1a12008-09-17 16:28:491525 if (num_pruned > 0) // Only notify if we did prune something.
1526 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201527 }
1528
[email protected]944822b2012-03-02 20:57:251529 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201530
[email protected]10f417c52011-12-28 21:04:231531 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201532 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431533
1534 // This is a new page ID, so we need everybody to know about it.
[email protected]ec6c05f2013-10-23 18:41:571535 delegate_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291536}
1537
[email protected]944822b2012-03-02 20:57:251538void NavigationControllerImpl::PruneOldestEntryIfFull() {
1539 if (entries_.size() >= max_entry_count()) {
1540 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021541 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251542 RemoveEntryAtIndex(0);
1543 NotifyPrunedEntries(this, true, 1);
1544 }
1545}
1546
[email protected]d202a7c2012-01-04 07:53:471547void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011548 needs_reload_ = false;
1549
[email protected]83c2e232011-10-07 21:36:461550 // If we were navigating to a slow-to-commit page, and the user performs
1551 // a session history navigation to the last committed page, RenderViewHost
1552 // will force the throbber to start, but WebKit will essentially ignore the
1553 // navigation, and won't send a message to stop the throbber. To prevent this
1554 // from happening, we drop the navigation here and stop the slow-to-commit
1555 // page from loading (which would normally happen during the navigation).
1556 if (pending_entry_index_ != -1 &&
1557 pending_entry_index_ == last_committed_entry_index_ &&
1558 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231559 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511560 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211561 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571562 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121563
1564 // If an interstitial page is showing, we want to close it to get back
1565 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571566 if (delegate_->GetInterstitialPage())
1567 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121568
[email protected]83c2e232011-10-07 21:36:461569 DiscardNonCommittedEntries();
1570 return;
1571 }
1572
[email protected]6a13a6c2011-12-20 21:47:121573 // If an interstitial page is showing, the previous renderer is blocked and
1574 // cannot make new requests. Unblock (and disable) it to allow this
1575 // navigation to succeed. The interstitial will stay visible until the
1576 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571577 if (delegate_->GetInterstitialPage()) {
1578 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131579 CancelForNavigation();
1580 }
[email protected]6a13a6c2011-12-20 21:47:121581
initial.commit09911bf2008-07-26 23:55:291582 // For session history navigations only the pending_entry_index_ is set.
1583 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201584 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201585 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291586 }
1587
[email protected]40fd3032014-02-28 22:16:281588 // This call does not support re-entrancy. See http://crbug.com/347742.
1589 CHECK(!in_navigate_to_pending_entry_);
1590 in_navigate_to_pending_entry_ = true;
1591 bool success = delegate_->NavigateToPendingEntry(reload_type);
1592 in_navigate_to_pending_entry_ = false;
1593
1594 if (!success)
[email protected]cbab76d2008-10-13 22:42:471595 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381596
1597 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1598 // it in now that we know. This allows us to find the entry when it commits.
[email protected]77362eb2011-08-01 17:18:381599 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231600 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331601 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]ec6c05f2013-10-23 18:41:571602 delegate_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231603 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381604 }
initial.commit09911bf2008-07-26 23:55:291605}
1606
[email protected]d202a7c2012-01-04 07:53:471607void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211608 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271609 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401610
[email protected]2db9bd72012-04-13 20:20:561611 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401612 // location bar will have up-to-date information about the security style
1613 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131614 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401615
[email protected]ec6c05f2013-10-23 18:41:571616 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
1617 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461618
[email protected]b0f724c2013-09-05 04:21:131619 // TODO(avi): Remove. http://crbug.com/170921
1620 NotificationDetails notification_details =
1621 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211622 NotificationService::current()->Notify(
1623 NOTIFICATION_NAV_ENTRY_COMMITTED,
1624 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401625 notification_details);
initial.commit09911bf2008-07-26 23:55:291626}
1627
initial.commit09911bf2008-07-26 23:55:291628// static
[email protected]d202a7c2012-01-04 07:53:471629size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231630 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1631 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211632 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231633}
1634
[email protected]d202a7c2012-01-04 07:53:471635void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221636 if (is_active && needs_reload_)
1637 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291638}
1639
[email protected]d202a7c2012-01-04 07:53:471640void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291641 if (!needs_reload_)
1642 return;
1643
initial.commit09911bf2008-07-26 23:55:291644 // Calling Reload() results in ignoring state, and not loading.
1645 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1646 // cached state.
1647 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161648 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291649}
1650
[email protected]d202a7c2012-01-04 07:53:471651void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1652 int index) {
[email protected]8ff00d72012-10-23 19:12:211653 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091654 det.changed_entry = entry;
1655 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211656 NotificationService::current()->Notify(
1657 NOTIFICATION_NAV_ENTRY_CHANGED,
1658 Source<NavigationController>(this),
1659 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291660}
1661
[email protected]d202a7c2012-01-04 07:53:471662void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361663 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551664 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361665 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291666
[email protected]71fde352011-12-29 03:29:561667 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291668
1669 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291670}
[email protected]765b35502008-08-21 00:51:201671
[email protected]d202a7c2012-01-04 07:53:471672void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]b12eb222013-09-10 00:11:481673 DiscardPendingEntry();
1674 DiscardTransientEntry();
1675}
1676
1677void NavigationControllerImpl::DiscardPendingEntry() {
[email protected]40fd3032014-02-28 22:16:281678 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:401679 // progress, since this will cause a use-after-free. (We only allow this
1680 // when the tab is being destroyed for shutdown, since it won't return to
1681 // NavigateToEntry in that case.) http://crbug.com/347742.
1682 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:281683
[email protected]765b35502008-08-21 00:51:201684 if (pending_entry_index_ == -1)
1685 delete pending_entry_;
1686 pending_entry_ = NULL;
1687 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471688}
1689
[email protected]d202a7c2012-01-04 07:53:471690void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471691 if (transient_entry_index_ == -1)
1692 return;
[email protected]a0e69262009-06-03 19:08:481693 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181694 if (last_committed_entry_index_ > transient_entry_index_)
1695 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471696 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201697}
1698
[email protected]d202a7c2012-01-04 07:53:471699int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111700 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201701 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111702 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511703 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201704 return i;
1705 }
1706 return -1;
1707}
[email protected]cbab76d2008-10-13 22:42:471708
[email protected]d202a7c2012-01-04 07:53:471709NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471710 if (transient_entry_index_ == -1)
1711 return NULL;
1712 return entries_[transient_entry_index_].get();
1713}
[email protected]e1cd5452010-08-26 18:03:251714
[email protected]0b684262013-02-20 02:18:211715void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1716 // Discard any current transient entry, we can only have one at a time.
1717 int index = 0;
1718 if (last_committed_entry_index_ != -1)
1719 index = last_committed_entry_index_ + 1;
1720 DiscardTransientEntry();
1721 entries_.insert(
1722 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1723 NavigationEntryImpl::FromNavigationEntry(entry)));
1724 transient_entry_index_ = index;
[email protected]ec6c05f2013-10-23 18:41:571725 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]0b684262013-02-20 02:18:211726}
1727
[email protected]d202a7c2012-01-04 07:53:471728void NavigationControllerImpl::InsertEntriesFrom(
1729 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251730 int max_index) {
[email protected]a26023822011-12-29 00:23:551731 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251732 size_t insert_index = 0;
1733 for (int i = 0; i < max_index; i++) {
1734 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041735 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211736 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251737 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231738 linked_ptr<NavigationEntryImpl>(
1739 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251740 }
1741 }
1742}
[email protected]c5b88d82012-10-06 17:03:331743
1744void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1745 const base::Callback<base::Time()>& get_timestamp_callback) {
1746 get_timestamp_callback_ = get_timestamp_callback;
1747}
[email protected]8ff00d72012-10-23 19:12:211748
1749} // namespace content