blob: 8a0c2071d62e92317fc55811882780ab5f859997 [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
creis4e2ecb72015-06-20 00:46:305/*
6 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
7 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
9 * (http://www.torchmobile.com/)
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
21 * its contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
25 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
28 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
[email protected]d4a8ca482013-10-30 21:06:4036#include "content/browser/frame_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:2937
[email protected]c5b88d82012-10-06 17:03:3338#include "base/bind.h"
[email protected]eabfe1912014-05-12 10:07:2839#include "base/command_line.h"
initial.commit09911bf2008-07-26 23:55:2940#include "base/logging.h"
[email protected]d6def3d2014-05-19 18:55:3241#include "base/metrics/histogram.h"
[email protected]348fbaac2013-06-11 06:31:5142#include "base/strings/string_number_conversions.h" // Temporary
43#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0044#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3745#include "base/time/time.h"
ssid3e765612015-01-28 04:03:4246#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5947#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2848#include "cc/base/switches.h"
rsleevic327b48f82015-04-30 02:03:2549#include "components/mime_util/mime_util.h"
jamescookda2505812015-03-20 18:01:1850#include "content/browser/bad_message.h"
[email protected]825b1662012-03-12 19:07:3151#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4152#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0453#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4054#include "content/browser/frame_host/debug_urls.h"
55#include "content/browser/frame_host/interstitial_page_impl.h"
56#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2657#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
creis4e2ecb72015-06-20 00:46:3058#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3259#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3360#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2261#include "content/common/frame_messages.h"
nickd30fd962015-07-27 21:51:0862#include "content/common/site_isolation_policy.h"
estarka5635c42015-07-14 00:06:5363#include "content/common/ssl_status_serialization.h"
[email protected]0aed2f52011-03-23 18:06:3664#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1165#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1966#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4667#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0068#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3869#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1670#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5871#include "content/public/browser/render_widget_host.h"
72#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3473#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3874#include "content/public/browser/user_metrics.h"
[email protected]d1198fd2012-08-13 22:50:1975#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3876#include "content/public/common/content_constants.h"
servolkf3955532015-05-16 00:01:5977#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3278#include "net/base/escape.h"
[email protected]7f070d42011-03-09 20:25:3279#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5880#include "skia/ext/platform_canvas.h"
[email protected]cca6f392014-05-28 21:32:2681#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2982
[email protected]8ff00d72012-10-23 19:12:2183namespace content {
[email protected]e9ba4472008-09-14 15:42:4384namespace {
85
86// Invoked when entries have been pruned, or removed. For example, if the
87// current entries are [google, digg, yahoo], with the current entry google,
88// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4789void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4990 bool from_front,
91 int count) {
[email protected]8ff00d72012-10-23 19:12:2192 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4993 details.from_front = from_front;
94 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2195 NotificationService::current()->Notify(
96 NOTIFICATION_NAV_LIST_PRUNED,
97 Source<NavigationController>(nav_controller),
98 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4399}
100
101// Ensure the given NavigationEntry has a valid state, so that WebKit does not
102// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39103//
[email protected]e9ba4472008-09-14 15:42:43104// An empty state is treated as a new navigation by WebKit, which would mean
105// losing the navigation entries and generating a new navigation entry after
106// this one. We don't want that. To avoid this we create a valid state which
107// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04108void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
109 if (!entry->GetPageState().IsValid())
110 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43111}
112
[email protected]2ca1ea662012-10-04 02:26:36113NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
114 NavigationController::RestoreType type) {
115 switch (type) {
116 case NavigationController::RESTORE_CURRENT_SESSION:
117 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
118 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
119 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
120 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
121 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
122 }
123 NOTREACHED();
124 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
125}
126
[email protected]e9ba4472008-09-14 15:42:43127// Configure all the NavigationEntries in entries for restore. This resets
128// the transition type to reload and makes sure the content state isn't empty.
129void ConfigureEntriesForRestore(
avi25764702015-06-23 15:43:37130 ScopedVector<NavigationEntryImpl>* entries,
[email protected]2ca1ea662012-10-04 02:26:36131 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43132 for (size_t i = 0; i < entries->size(); ++i) {
133 // Use a transition type of reload so that we don't incorrectly increase
134 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35135 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:36136 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:43137 // NOTE(darin): This code is only needed for backwards compat.
avi25764702015-06-23 15:43:37138 SetPageStateIfEmpty((*entries)[i]);
[email protected]e9ba4472008-09-14 15:42:43139 }
140}
141
[email protected]bf70edce2012-06-20 22:32:22142// Determines whether or not we should be carrying over a user agent override
143// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21144bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22145 return last_entry && last_entry->GetIsOverridingUserAgent();
146}
147
[email protected]e9ba4472008-09-14 15:42:43148} // namespace
149
[email protected]d202a7c2012-01-04 07:53:47150// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29151
[email protected]23a918b2014-07-15 09:51:36152const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23153
[email protected]765b35502008-08-21 00:51:20154// static
[email protected]d202a7c2012-01-04 07:53:47155size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23156 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20157
[email protected]e6fec472013-05-14 05:29:02158// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20159// when testing.
160static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29161
[email protected]71fde352011-12-29 03:29:56162// static
avi25764702015-06-23 15:43:37163scoped_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56164 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20165 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35166 ui::PageTransition transition,
[email protected]71fde352011-12-29 03:29:56167 bool is_renderer_initiated,
168 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20169 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05170 // Fix up the given URL before letting it be rewritten, so that any minor
171 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
172 GURL dest_url(url);
173 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
174 browser_context);
175
[email protected]71fde352011-12-29 03:29:56176 // Allow the browser URL handler to rewrite the URL. This will, for example,
177 // remove "view-source:" from the beginning of the URL to get the URL that
178 // will actually be loaded. This real URL won't be shown to the user, just
179 // used internally.
creis94a977f62015-02-18 23:51:05180 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56181 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31182 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56183 &loaded_url, browser_context, &reverse_on_redirect);
184
185 NavigationEntryImpl* entry = new NavigationEntryImpl(
186 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56187 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56188 -1,
189 loaded_url,
190 referrer,
[email protected]fcf75d42013-12-03 20:11:26191 base::string16(),
[email protected]71fde352011-12-29 03:29:56192 transition,
193 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05194 entry->SetVirtualURL(dest_url);
195 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56196 entry->set_update_virtual_url_with_url(reverse_on_redirect);
197 entry->set_extra_headers(extra_headers);
avi25764702015-06-23 15:43:37198 return make_scoped_ptr(entry);
[email protected]71fde352011-12-29 03:29:56199}
200
[email protected]cdcb1dee2012-01-04 00:46:20201// static
202void NavigationController::DisablePromptOnRepost() {
203 g_check_for_repost = false;
204}
205
[email protected]c5b88d82012-10-06 17:03:33206base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
207 base::Time t) {
208 // If |t| is between the water marks, we're in a run of duplicates
209 // or just getting out of it, so increase the high-water mark to get
210 // a time that probably hasn't been used before and return it.
211 if (low_water_mark_ <= t && t <= high_water_mark_) {
212 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
213 return high_water_mark_;
214 }
215
216 // Otherwise, we're clear of the last duplicate run, so reset the
217 // water marks.
218 low_water_mark_ = high_water_mark_ = t;
219 return t;
220}
221
[email protected]d202a7c2012-01-04 07:53:47222NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57223 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19224 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37225 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20226 pending_entry_(NULL),
avi45a72532015-04-07 21:01:45227 failed_pending_entry_id_(0),
228 failed_pending_entry_should_replace_(false),
[email protected]765b35502008-08-21 00:51:20229 last_committed_entry_index_(-1),
230 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47231 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57232 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29233 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22234 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57235 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09236 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28237 in_navigate_to_pending_entry_(false),
[email protected]c5b88d82012-10-06 17:03:33238 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31239 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]d1581d72013-11-05 19:11:26240 screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37241 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29242}
243
[email protected]d202a7c2012-01-04 07:53:47244NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47245 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29246}
247
[email protected]d202a7c2012-01-04 07:53:47248WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57249 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32250}
251
[email protected]d202a7c2012-01-04 07:53:47252BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55253 return browser_context_;
254}
255
[email protected]d202a7c2012-01-04 07:53:47256void NavigationControllerImpl::SetBrowserContext(
257 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20258 browser_context_ = browser_context;
259}
260
[email protected]d202a7c2012-01-04 07:53:47261void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30262 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36263 RestoreType type,
avi25764702015-06-23 15:43:37264 ScopedVector<NavigationEntry>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57265 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55266 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57267 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14268 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57269
[email protected]ce3fa3c2009-04-20 19:55:57270 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04271 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23272 NavigationEntryImpl* entry =
273 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
avi25764702015-06-23 15:43:37274 entries_.push_back(entry);
[email protected]ad23a092011-12-28 07:02:04275 }
avi25764702015-06-23 15:43:37276 entries->weak_clear();
[email protected]ce3fa3c2009-04-20 19:55:57277
278 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36279 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57280}
281
[email protected]d202a7c2012-01-04 07:53:47282void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16283 ReloadInternal(check_for_repost, RELOAD);
284}
[email protected]d202a7c2012-01-04 07:53:47285void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16286 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
287}
[email protected]7c16976c2012-08-04 02:38:23288void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
289 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
290}
[email protected]1ccb3568d2010-02-19 10:51:16291
[email protected]d202a7c2012-01-04 07:53:47292void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
293 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36294 if (transient_entry_index_ != -1) {
295 // If an interstitial is showing, treat a reload as a navigation to the
296 // transient entry's URL.
creis3da03872015-02-20 21:12:32297 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27298 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36299 return;
[email protected]6286a3792013-10-09 04:03:27300 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21301 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35302 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27303 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47304 return;
[email protected]669e0ba2012-08-30 23:57:36305 }
[email protected]cbab76d2008-10-13 22:42:47306
[email protected]59167c22013-06-03 18:07:32307 NavigationEntryImpl* entry = NULL;
308 int current_index = -1;
309
310 // If we are reloading the initial navigation, just use the current
311 // pending entry. Otherwise look up the current entry.
312 if (IsInitialNavigation() && pending_entry_) {
313 entry = pending_entry_;
314 // The pending entry might be in entries_ (e.g., after a Clone), so we
315 // should also update the current_index.
316 current_index = pending_entry_index_;
317 } else {
318 DiscardNonCommittedEntriesInternal();
319 current_index = GetCurrentEntryIndex();
320 if (current_index != -1) {
creis3da03872015-02-20 21:12:32321 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32322 }
[email protected]979a4bc2013-04-24 01:27:15323 }
[email protected]241db352013-04-22 18:04:05324
[email protected]59167c22013-06-03 18:07:32325 // If we are no where, then we can't reload. TODO(darin): We should add a
326 // CanReload method.
327 if (!entry)
328 return;
329
[email protected]cdcb1dee2012-01-04 00:46:20330 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32331 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30332 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07333 // they really want to do this. If they do, the dialog will call us back
334 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57335 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02336
[email protected]106a0812010-03-18 00:15:12337 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57338 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29339 } else {
[email protected]59167c22013-06-03 18:07:32340 if (!IsInitialNavigation())
341 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26342
[email protected]bcd904482012-02-01 01:54:22343 // If we are reloading an entry that no longer belongs to the current
344 // site instance (for example, refreshing a page for just installed app),
345 // the reload must happen in a new process.
346 // The new entry must have a new page_id and site instance, so it behaves
347 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30348 // Tabs that are discarded due to low memory conditions may not have a site
349 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32350 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21351 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10352 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
353 site_instance->GetProcess()->IsForGuestsOnly();
354 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30355 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22356 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46357 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22358 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
359 CreateNavigationEntry(
360 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37361 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26362
[email protected]11535962012-02-09 21:02:10363 // Mark the reload type as NO_RELOAD, so navigation will not be considered
364 // a reload in the renderer.
365 reload_type = NavigationController::NO_RELOAD;
366
[email protected]e2caa032012-11-15 23:29:18367 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22368 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46369 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22370 } else {
[email protected]59167c22013-06-03 18:07:32371 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22372 pending_entry_index_ = current_index;
373
374 // The title of the page being reloaded might have been removed in the
375 // meanwhile, so we need to revert to the default title upon reload and
376 // invalidate the previously cached title (SetTitle will do both).
377 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26378 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22379
Sylvain Defresnec6ccc77d2014-09-19 10:19:35380 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22381 }
382
[email protected]1ccb3568d2010-02-19 10:51:16383 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29384 }
385}
386
[email protected]d202a7c2012-01-04 07:53:47387void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12388 DCHECK(pending_reload_ != NO_RELOAD);
389 pending_reload_ = NO_RELOAD;
390}
391
[email protected]d202a7c2012-01-04 07:53:47392void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12393 if (pending_reload_ == NO_RELOAD) {
394 NOTREACHED();
395 } else {
396 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02397 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12398 }
399}
400
[email protected]cd2e15742013-03-08 04:08:31401bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09402 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11403}
404
[email protected]d202a7c2012-01-04 07:53:47405NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33406 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11407 int index = GetEntryIndexWithPageID(instance, page_id);
avi25764702015-06-23 15:43:37408 return (index != -1) ? entries_[index] : nullptr;
[email protected]765b35502008-08-21 00:51:20409}
410
avi254eff02015-07-01 08:27:58411NavigationEntryImpl*
412NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
413 int index = GetEntryIndexWithUniqueID(nav_entry_id);
414 return (index != -1) ? entries_[index] : nullptr;
415}
416
avi25764702015-06-23 15:43:37417void NavigationControllerImpl::LoadEntry(
418 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20419 // When navigating to a new page, we don't know for sure if we will actually
420 // end up leaving the current page. The new page load could for example
421 // result in a download or a 'no content' response (e.g., a mailto: URL).
avi25764702015-06-23 15:43:37422 SetPendingEntry(entry.Pass());
[email protected]59167c22013-06-03 18:07:32423 NavigateToPendingEntry(NO_RELOAD);
424}
425
avi25764702015-06-23 15:43:37426void NavigationControllerImpl::SetPendingEntry(
427 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47428 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37429 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21430 NotificationService::current()->Notify(
431 NOTIFICATION_NAV_ENTRY_PENDING,
432 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37433 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20434}
435
creis3da03872015-02-20 21:12:32436NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47437 if (transient_entry_index_ != -1)
avi25764702015-06-23 15:43:37438 return entries_[transient_entry_index_];
[email protected]cbab76d2008-10-13 22:42:47439 if (pending_entry_)
440 return pending_entry_;
441 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20442}
443
creis3da03872015-02-20 21:12:32444NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19445 if (transient_entry_index_ != -1)
avi25764702015-06-23 15:43:37446 return entries_[transient_entry_index_];
[email protected]59167c22013-06-03 18:07:32447 // The pending entry is safe to return for new (non-history), browser-
448 // initiated navigations. Most renderer-initiated navigations should not
449 // show the pending entry, to prevent URL spoof attacks.
450 //
451 // We make an exception for renderer-initiated navigations in new tabs, as
452 // long as no other page has tried to access the initial empty document in
453 // the new tab. If another page modifies this blank page, a URL spoof is
454 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32455 bool safe_to_show_pending =
456 pending_entry_ &&
457 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09458 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32459 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46460 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32461
462 // Also allow showing the pending entry for history navigations in a new tab,
463 // such as Ctrl+Back. In this case, no existing page is visible and no one
464 // can script the new tab before it commits.
465 if (!safe_to_show_pending &&
466 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09467 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32468 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34469 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32470 safe_to_show_pending = true;
471
472 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19473 return pending_entry_;
474 return GetLastCommittedEntry();
475}
476
[email protected]d202a7c2012-01-04 07:53:47477int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47478 if (transient_entry_index_ != -1)
479 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20480 if (pending_entry_index_ != -1)
481 return pending_entry_index_;
482 return last_committed_entry_index_;
483}
484
creis3da03872015-02-20 21:12:32485NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20486 if (last_committed_entry_index_ == -1)
487 return NULL;
avi25764702015-06-23 15:43:37488 return entries_[last_committed_entry_index_];
[email protected]765b35502008-08-21 00:51:20489}
490
[email protected]d202a7c2012-01-04 07:53:47491bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57492 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25493 bool is_viewable_mime_type =
494 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59495 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27496 NavigationEntry* visible_entry = GetVisibleEntry();
497 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57498 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16499}
500
[email protected]d202a7c2012-01-04 07:53:47501int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55502 return last_committed_entry_index_;
503}
504
[email protected]d202a7c2012-01-04 07:53:47505int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25506 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55507 return static_cast<int>(entries_.size());
508}
509
creis3da03872015-02-20 21:12:32510NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25511 int index) const {
avi25764702015-06-23 15:43:37512 if (index < 0 || index >= GetEntryCount())
513 return nullptr;
514
515 return entries_[index];
[email protected]022af742011-12-28 18:37:25516}
517
creis3da03872015-02-20 21:12:32518NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25519 int offset) const {
avi057ce1492015-06-29 15:59:47520 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20521}
522
[email protected]9ba14052012-06-22 23:50:03523int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46524 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03525}
526
[email protected]9677a3c2012-12-22 04:18:58527void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10528 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58529}
530
[email protected]1a3f5312013-04-26 21:00:10531void NavigationControllerImpl::SetScreenshotManager(
avi67081d0ae2015-07-27 18:25:46532 scoped_ptr<NavigationEntryScreenshotManager> manager) {
533 if (manager.get())
534 screenshot_manager_ = manager.Pass();
535 else
536 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58537}
538
[email protected]d202a7c2012-01-04 07:53:47539bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22540 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20541}
542
[email protected]d202a7c2012-01-04 07:53:47543bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22544 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20545}
546
[email protected]9ba14052012-06-22 23:50:03547bool NavigationControllerImpl::CanGoToOffset(int offset) const {
548 int index = GetIndexForOffset(offset);
549 return index >= 0 && index < GetEntryCount();
550}
551
[email protected]d202a7c2012-01-04 07:53:47552void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20553 if (!CanGoBack()) {
554 NOTREACHED();
555 return;
556 }
557
558 // Base the navigation on where we are now...
559 int current_index = GetCurrentEntryIndex();
560
[email protected]cbab76d2008-10-13 22:42:47561 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20562
563 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25564 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35565 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51566 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35567 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16568 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20569}
570
[email protected]d202a7c2012-01-04 07:53:47571void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20572 if (!CanGoForward()) {
573 NOTREACHED();
574 return;
575 }
576
[email protected]cbab76d2008-10-13 22:42:47577 bool transient = (transient_entry_index_ != -1);
578
[email protected]765b35502008-08-21 00:51:20579 // Base the navigation on where we are now...
580 int current_index = GetCurrentEntryIndex();
581
[email protected]cbab76d2008-10-13 22:42:47582 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20583
[email protected]cbab76d2008-10-13 22:42:47584 pending_entry_index_ = current_index;
585 // If there was a transient entry, we removed it making the current index
586 // the next page.
587 if (!transient)
588 pending_entry_index_++;
589
[email protected]022af742011-12-28 18:37:25590 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35591 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51592 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35593 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16594 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20595}
596
[email protected]d202a7c2012-01-04 07:53:47597void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20598 if (index < 0 || index >= static_cast<int>(entries_.size())) {
599 NOTREACHED();
600 return;
601 }
602
[email protected]cbab76d2008-10-13 22:42:47603 if (transient_entry_index_ != -1) {
604 if (index == transient_entry_index_) {
605 // Nothing to do when navigating to the transient.
606 return;
607 }
608 if (index > transient_entry_index_) {
609 // Removing the transient is goint to shift all entries by 1.
610 index--;
611 }
612 }
613
614 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20615
616 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25617 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35618 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51619 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35620 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16621 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20622}
623
[email protected]d202a7c2012-01-04 07:53:47624void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03625 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20626 return;
627
[email protected]9ba14052012-06-22 23:50:03628 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20629}
630
[email protected]41374f12013-07-24 02:49:28631bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
632 if (index == last_committed_entry_index_ ||
633 index == pending_entry_index_)
634 return false;
[email protected]6a13a6c2011-12-20 21:47:12635
[email protected]43032342011-03-21 14:10:31636 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28637 return true;
[email protected]cbab76d2008-10-13 22:42:47638}
639
[email protected]d202a7c2012-01-04 07:53:47640void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23641 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32642 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31643 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51644 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
645 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32646 }
647}
648
[email protected]d202a7c2012-01-04 07:53:47649void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47650 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21651 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35652 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47653 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47654 LoadURLParams params(url);
655 params.referrer = referrer;
656 params.transition_type = transition;
657 params.extra_headers = extra_headers;
658 LoadURLWithParams(params);
659}
660
661void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43662 TRACE_EVENT1("browser,navigation",
663 "NavigationControllerImpl::LoadURLWithParams",
664 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43665 if (HandleDebugURL(params.url, params.transition_type)) {
666 // If Telemetry is running, allow the URL load to proceed as if it's
667 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49668 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43669 cc::switches::kEnableGpuBenchmarking))
670 return;
671 }
[email protected]8bf1048012012-02-08 01:22:18672
[email protected]cf002332012-08-14 19:17:47673 // Checks based on params.load_type.
674 switch (params.load_type) {
675 case LOAD_TYPE_DEFAULT:
676 break;
677 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e8ca69c2014-05-07 15:31:19678 if (!params.url.SchemeIs(url::kHttpScheme) &&
679 !params.url.SchemeIs(url::kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47680 NOTREACHED() << "Http post load must use http(s) scheme.";
681 return;
682 }
683 break;
684 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26685 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47686 NOTREACHED() << "Data load must use data scheme.";
687 return;
688 }
689 break;
690 default:
691 NOTREACHED();
692 break;
693 };
[email protected]e47ae9472011-10-13 19:48:34694
[email protected]e47ae9472011-10-13 19:48:34695 // The user initiated a load, we don't need to reload anymore.
696 needs_reload_ = false;
697
[email protected]cf002332012-08-14 19:17:47698 bool override = false;
699 switch (params.override_user_agent) {
700 case UA_OVERRIDE_INHERIT:
701 override = ShouldKeepOverride(GetLastCommittedEntry());
702 break;
703 case UA_OVERRIDE_TRUE:
704 override = true;
705 break;
706 case UA_OVERRIDE_FALSE:
707 override = false;
708 break;
709 default:
710 NOTREACHED();
711 break;
[email protected]d1ef81d2012-07-24 11:39:36712 }
713
avi25764702015-06-23 15:43:37714 scoped_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30715
716 // For subframes, create a pending entry with a corresponding frame entry.
717 int frame_tree_node_id = params.frame_tree_node_id;
718 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
719 FrameTreeNode* node =
720 params.frame_tree_node_id != -1
721 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
722 : delegate_->GetFrameTree()->FindByName(params.frame_name);
723 if (node && !node->IsMainFrame()) {
724 DCHECK(GetLastCommittedEntry());
725
726 // Update the FTN ID to use below in case we found a named frame.
727 frame_tree_node_id = node->frame_tree_node_id();
728
729 // In --site-per-process, create an identical NavigationEntry with a
730 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08731 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30732 entry = GetLastCommittedEntry()->Clone();
733 entry->SetPageID(-1);
734 entry->AddOrUpdateFrameEntry(node, -1, -1, nullptr, params.url,
735 params.referrer, PageState());
736 }
737 }
creis6a93a812015-04-24 23:13:17738 }
creis4e2ecb72015-06-20 00:46:30739
740 // Otherwise, create a pending entry for the main frame.
741 if (!entry) {
742 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
743 params.url, params.referrer, params.transition_type,
744 params.is_renderer_initiated, params.extra_headers, browser_context_));
745 }
746 // Set the FTN ID (only used in non-site-per-process, for tests).
747 entry->set_frame_tree_node_id(frame_tree_node_id);
lfg9ef7d2d2014-12-15 22:32:30748 entry->set_source_site_instance(
749 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
[email protected]f8872902013-10-30 03:18:57750 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21751 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39752 // Don't allow an entry replacement if there is no entry to replace.
753 // http://crbug.com/457149
754 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18755 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13756 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47757 entry->SetIsOverridingUserAgent(override);
758 entry->set_transferred_global_request_id(
759 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36760
clamy8451aa62015-01-23 16:56:08761#if defined(OS_ANDROID)
762 if (params.intent_received_timestamp > 0) {
763 entry->set_intent_received_timestamp(
764 base::TimeTicks() +
765 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
766 }
qinmin976d4d92015-08-07 18:32:39767 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08768#endif
769
[email protected]cf002332012-08-14 19:17:47770 switch (params.load_type) {
771 case LOAD_TYPE_DEFAULT:
772 break;
773 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
774 entry->SetHasPostData(true);
775 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46776 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47777 break;
778 case LOAD_TYPE_DATA:
779 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
780 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37781 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47782 break;
783 default:
784 NOTREACHED();
785 break;
786 };
[email protected]132e281a2012-07-31 18:32:44787
avi25764702015-06-23 15:43:37788 LoadEntry(entry.Pass());
[email protected]132e281a2012-07-31 18:32:44789}
790
[email protected]d202a7c2012-01-04 07:53:47791bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32792 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22793 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21794 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31795 is_initial_navigation_ = false;
796
[email protected]0e8db942008-09-24 21:21:48797 // Save the previous state before we clobber it.
798 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51799 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55800 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48801 } else {
802 details->previous_url = GURL();
803 details->previous_entry_index = -1;
804 }
[email protected]ecd9d8702008-08-28 22:10:17805
fdegans9caf66a2015-07-30 21:10:42806 // If there is a pending entry at this point, it should have a SiteInstance,
807 // except for restored entries.
808 DCHECK(pending_entry_index_ == -1 ||
809 pending_entry_->site_instance() ||
810 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
811 if (pending_entry_ &&
812 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
813 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]e9ba4472008-09-14 15:42:43814
[email protected]bcd904482012-02-01 01:54:22815 // If we are doing a cross-site reload, we need to replace the existing
816 // navigation entry, not add another entry to the history. This has the side
avi45a72532015-04-07 21:01:45817 // effect of removing forward browsing history, if such existed. Or if we are
818 // doing a cross-site redirect navigation, we will do a similar thing.
819 //
820 // If this is an error load, we may have already removed the pending entry
821 // when we got the notice of the load failure. If so, look at the copy of the
822 // pending parameters that were saved.
823 if (params.url_is_unreachable && failed_pending_entry_id_ != 0) {
824 details->did_replace_entry = failed_pending_entry_should_replace_;
825 } else {
826 details->did_replace_entry = pending_entry_ &&
827 pending_entry_->should_replace_entry();
828 }
[email protected]bcd904482012-02-01 01:54:22829
[email protected]e9ba4472008-09-14 15:42:43830 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43831 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20832
[email protected]b9d4dfdc2013-08-08 00:25:12833 // is_in_page must be computed before the entry gets committed.
avidb7d1d22015-06-08 21:21:50834 details->is_in_page = IsURLInPageNavigation(
[email protected]5cfbddc2014-06-23 23:52:23835 params.url, params.was_within_same_page, rfh);
[email protected]b9d4dfdc2013-08-08 00:25:12836
[email protected]0e8db942008-09-24 21:21:48837 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21838 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43839 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43840 break;
[email protected]8ff00d72012-10-23 19:12:21841 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36842 details->did_replace_entry = details->is_in_page;
[email protected]27dd82fd2014-03-03 22:11:43843 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43844 break;
[email protected]8ff00d72012-10-23 19:12:21845 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43846 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43847 break;
[email protected]8ff00d72012-10-23 19:12:21848 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43849 RendererDidNavigateNewSubframe(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43850 break;
[email protected]8ff00d72012-10-23 19:12:21851 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43852 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43853 return false;
854 break;
[email protected]8ff00d72012-10-23 19:12:21855 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49856 // If a pending navigation was in progress, this canceled it. We should
857 // discard it and make sure it is removed from the URL bar. After that,
858 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43859 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49860 if (pending_entry_) {
861 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57862 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49863 }
[email protected]e9ba4472008-09-14 15:42:43864 return false;
865 default:
866 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20867 }
868
[email protected]688aa65c62012-09-28 04:32:22869 // At this point, we know that the navigation has just completed, so
870 // record the time.
871 //
872 // TODO(akalin): Use "sane time" as described in
873 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33874 base::Time timestamp =
875 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
876 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22877 << timestamp.ToInternalValue();
878
[email protected]f233e4232013-02-23 00:55:14879 // We should not have a pending entry anymore. Clear it again in case any
880 // error cases above forgot to do so.
881 DiscardNonCommittedEntriesInternal();
882
[email protected]e9ba4472008-09-14 15:42:43883 // All committed entries should have nonempty content state so WebKit doesn't
884 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04885 DCHECK(params.page_state.IsValid());
creis3da03872015-02-20 21:12:32886 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22887 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44888 active_entry->SetHttpStatusCode(params.http_status_code);
nickd30fd962015-07-27 21:51:08889 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30890 // Update the frame-specific PageState.
891 FrameNavigationEntry* frame_entry =
892 active_entry->GetFrameEntry(rfh->frame_tree_node());
creise062d542015-08-25 02:01:55893 // We may not find a frame_entry in some cases; ignore the PageState if so.
894 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
895 if (frame_entry)
896 frame_entry->set_page_state(params.page_state);
creis4e2ecb72015-06-20 00:46:30897 } else {
898 active_entry->SetPageState(params.page_state);
899 }
[email protected]c1982ff2014-04-23 03:37:21900 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44901
[email protected]d6def3d2014-05-19 18:55:32902 // Use histogram to track memory impact of redirect chain because it's now
903 // not cleared for committed entries.
904 size_t redirect_chain_size = 0;
905 for (size_t i = 0; i < params.redirects.size(); ++i) {
906 redirect_chain_size += params.redirects[i].spec().length();
907 }
908 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
909
[email protected]97d8f0d2013-10-29 16:49:21910 // Once it is committed, we no longer need to track several pieces of state on
911 // the entry.
912 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13913
[email protected]49bd30e62011-03-22 20:12:59914 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22915 // TODO(creis): This check won't pass for subframes until we create entries
916 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00917 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42918 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59919
[email protected]b26de072013-02-23 02:33:44920 // Remember the bindings the renderer process has at this point, so that
921 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32922 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44923
[email protected]e9ba4472008-09-14 15:42:43924 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00925 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00926 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31927 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53928
929 // Deserialize the security info and kill the renderer if
930 // deserialization fails. The navigation will continue with default
931 // SSLStatus values.
932 if (!DeserializeSecurityInfo(params.security_info, &details->ssl_status)) {
933 bad_message::ReceivedBadMessage(
934 rfh->GetProcess(),
935 bad_message::WC_RENDERER_DID_NAVIGATE_BAD_SECURITY_INFO);
936 }
937
[email protected]93f230e02011-06-01 14:40:00938 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29939
avi286019ce2015-07-29 01:26:58940 // Update the RenderViewHost of the top-level RenderFrameHost's notion of what
941 // entry it's showing for use later.
942 RenderFrameHostImpl* main_frame =
943 rfh->frame_tree_node()->frame_tree()->root()->current_frame_host();
944 static_cast<RenderViewHostImpl*>(main_frame->GetRenderViewHost())->
945 set_nav_entry_id(active_entry->GetUniqueID());
946
[email protected]e9ba4472008-09-14 15:42:43947 return true;
initial.commit09911bf2008-07-26 23:55:29948}
949
[email protected]8ff00d72012-10-23 19:12:21950NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32951 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22952 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38953 if (params.did_create_new_entry) {
954 // A new entry. We may or may not have a pending entry for the page, and
955 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00956 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38957 return NAVIGATION_TYPE_NEW_PAGE;
958 }
959
960 // When this is a new subframe navigation, we should have a committed page
961 // in which it's a subframe. This may not be the case when an iframe is
962 // navigated on a popup navigated to about:blank (the iframe would be
963 // written into the popup by script on the main page). For these cases,
964 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:23965 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:38966 return NAVIGATION_TYPE_NAV_IGNORE;
967
968 // Valid subframe navigation.
969 return NAVIGATION_TYPE_NEW_SUBFRAME;
970 }
971
972 // We only clear the session history when navigating to a new page.
973 DCHECK(!params.history_list_was_cleared);
974
avi39c1edd32015-06-04 20:06:00975 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38976 // All manual subframes would be did_create_new_entry and handled above, so
977 // we know this is auto.
978 if (GetLastCommittedEntry()) {
979 return NAVIGATION_TYPE_AUTO_SUBFRAME;
980 } else {
981 // We ignore subframes created in non-committed pages; we'd appreciate if
982 // people stopped doing that.
983 return NAVIGATION_TYPE_NAV_IGNORE;
984 }
985 }
986
987 if (params.nav_entry_id == 0) {
988 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
989 // create a new page.
990
991 // Just like above in the did_create_new_entry case, it's possible to
992 // scribble onto an uncommitted page. Again, there isn't any navigation
993 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:23994 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:23995 if (!last_committed)
avi7c6f35e2015-05-08 17:52:38996 return NAVIGATION_TYPE_NAV_IGNORE;
997
avi259dc792015-07-07 04:42:36998 // This is history.replaceState(), history.reload(), or a client-side
999 // redirect.
1000 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381001 }
1002
1003 if (pending_entry_ && pending_entry_index_ == -1 &&
1004 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1005 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421006 // didn't do a new navigation (params.did_create_new_entry). First check to
1007 // make sure Blink didn't treat a new cross-process navigation as inert, and
1008 // thus set params.did_create_new_entry to false. In that case, we must
1009 // treat it as NEW since the SiteInstance doesn't match the entry.
1010 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
1011 return NAVIGATION_TYPE_NEW_PAGE;
1012
1013 // Otherwise, this happens when you press enter in the URL bar to reload. We
1014 // will create a pending entry, but Blink will convert it to a reload since
1015 // it's the same page and not create a new entry for it (the user doesn't
1016 // want to have a new back/forward entry when they do this). Therefore we
1017 // want to just ignore the pending entry and go back to where we were (the
1018 // "existing entry").
1019 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381020 return NAVIGATION_TYPE_SAME_PAGE;
1021 }
1022
1023 if (params.intended_as_new_entry) {
1024 // This was intended to be a navigation to a new entry but the pending entry
1025 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1026 // may not have a pending entry.
1027 return NAVIGATION_TYPE_EXISTING_PAGE;
1028 }
1029
1030 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1031 params.nav_entry_id == failed_pending_entry_id_) {
1032 // If the renderer was going to a new pending entry that got cleared because
1033 // of an error, this is the case of the user trying to retry a failed load
1034 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1035 // have a pending entry.
1036 return NAVIGATION_TYPE_EXISTING_PAGE;
1037 }
1038
1039 // Now we know that the notification is for an existing page. Find that entry.
1040 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1041 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441042 // The renderer has committed a navigation to an entry that no longer
1043 // exists. Because the renderer is showing that page, resurrect that entry.
1044 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381045 }
1046
avi7c6f35e2015-05-08 17:52:381047 // Since we weeded out "new" navigations above, we know this is an existing
1048 // (back/forward) navigation.
1049 return NAVIGATION_TYPE_EXISTING_PAGE;
1050}
1051
[email protected]d202a7c2012-01-04 07:53:471052void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321053 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221054 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221055 bool replace_entry) {
avi25764702015-06-23 15:43:371056 scoped_ptr<NavigationEntryImpl> new_entry;
[email protected]f1eb87a2011-05-06 17:49:411057 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:341058 // Only make a copy of the pending entry if it is appropriate for the new page
1059 // that was just loaded. We verify this at a coarse grain by checking that
avi5cad4912015-06-19 05:25:441060 // the SiteInstance hasn't been assigned to something else, and by making sure
1061 // that the pending entry was intended as a new entry (rather than being a
1062 // history navigation that was interrupted by an unrelated, renderer-initiated
1063 // navigation).
1064 if (pending_entry_ && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341065 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431066 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351067 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431068
[email protected]f1eb87a2011-05-06 17:49:411069 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431070 } else {
avi25764702015-06-23 15:43:371071 new_entry = make_scoped_ptr(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241072
1073 // Find out whether the new entry needs to update its virtual URL on URL
1074 // change and set up the entry accordingly. This is needed to correctly
1075 // update the virtual URL when replaceState is called after a pushState.
1076 GURL url = params.url;
1077 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431078 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1079 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241080 new_entry->set_update_virtual_url_with_url(needs_update);
1081
[email protected]f1eb87a2011-05-06 17:49:411082 // When navigating to a new page, give the browser URL handler a chance to
1083 // update the virtual URL based on the new URL. For example, this is needed
1084 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1085 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241086 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431087 }
1088
wjmaclean7431bb22015-02-19 14:53:431089 // Don't use the page type from the pending entry. Some interstitial page
1090 // may have set the type to interstitial. Once we commit, however, the page
1091 // type must always be normal or error.
1092 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1093 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041094 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411095 if (update_virtual_url)
avi25764702015-06-23 15:43:371096 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251097 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511098 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251099 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331100 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431101 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511102 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051103 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231104 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221105 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431106
creis8b5cd4c2015-06-19 00:11:081107 // Update the FrameNavigationEntry for new main frame commits.
1108 FrameNavigationEntry* frame_entry =
1109 new_entry->GetFrameEntry(rfh->frame_tree_node());
1110 frame_entry->set_item_sequence_number(params.item_sequence_number);
1111 frame_entry->set_document_sequence_number(params.document_sequence_number);
1112
[email protected]ff64b3e2014-05-31 04:07:331113 // history.pushState() is classified as a navigation to a new page, but
1114 // sets was_within_same_page to true. In this case, we already have the
[email protected]3a868f212014-08-09 10:41:191115 // title and favicon available, so set them immediately.
1116 if (params.was_within_same_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331117 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191118 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1119 }
[email protected]ff64b3e2014-05-31 04:07:331120
[email protected]60d6cca2013-04-30 08:47:131121 DCHECK(!params.history_list_was_cleared || !replace_entry);
1122 // The browser requested to clear the session history when it initiated the
1123 // navigation. Now we know that the renderer has updated its state accordingly
1124 // and it is safe to also clear the browser side history.
1125 if (params.history_list_was_cleared) {
1126 DiscardNonCommittedEntriesInternal();
1127 entries_.clear();
1128 last_committed_entry_index_ = -1;
1129 }
1130
avi25764702015-06-23 15:43:371131 InsertOrReplaceEntry(new_entry.Pass(), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431132}
1133
[email protected]d202a7c2012-01-04 07:53:471134void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321135 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221136 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431137 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001138 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431139
avicbdc4c12015-07-01 16:07:111140 NavigationEntryImpl* entry;
1141 if (params.intended_as_new_entry) {
1142 // This was intended as a new entry but the pending entry was lost in the
1143 // meanwhile and no new page was created. We are stuck at the last committed
1144 // entry.
1145 entry = GetLastCommittedEntry();
1146 } else if (params.nav_entry_id) {
1147 // This is a browser-initiated navigation (back/forward/reload).
1148 entry = GetEntryWithUniqueID(params.nav_entry_id);
1149 } else {
1150 // This is renderer-initiated. The only kinds of renderer-initated
1151 // navigations that are EXISTING_PAGE are reloads and location.replace,
1152 // which land us at the last committed entry.
1153 entry = GetLastCommittedEntry();
1154 }
1155 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431156
[email protected]5ccd4dc2012-10-24 02:28:141157 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431158 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1159 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041160 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201161 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321162 if (entry->update_virtual_url_with_url())
1163 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141164
1165 // The redirected to page should not inherit the favicon from the previous
1166 // page.
Sylvain Defresnec6ccc77d2014-09-19 10:19:351167 if (ui::PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481168 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141169
1170 // The site instance will normally be the same except during session restore,
1171 // when no site instance will be assigned.
fdegans9caf66a2015-07-30 21:10:421172 DCHECK(entry->site_instance() == nullptr ||
[email protected]27dd82fd2014-03-03 22:11:431173 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331174 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431175 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431176
[email protected]36fc0392011-12-25 03:59:511177 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051178 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411179
[email protected]e9ba4472008-09-14 15:42:431180 // The entry we found in the list might be pending if the user hit
1181 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591182 // list, we can just discard the pending pointer). We should also discard the
1183 // pending entry if it corresponds to a different navigation, since that one
1184 // is now likely canceled. If it is not canceled, we will treat it as a new
1185 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431186 //
1187 // Note that we need to use the "internal" version since we don't want to
1188 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491189 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391190
[email protected]80858db52009-10-15 00:35:181191 // If a transient entry was removed, the indices might have changed, so we
1192 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111193 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431194}
1195
[email protected]d202a7c2012-01-04 07:53:471196void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321197 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221198 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291199 // This classification says that we have a pending entry that's the same as
1200 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091201 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291202 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431203
creis77c9aa32015-09-25 19:59:421204 // If we classified this correctly, the SiteInstance should not have changed.
1205 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1206
[email protected]e9ba4472008-09-14 15:42:431207 // We assign the entry's unique ID to be that of the new one. Since this is
1208 // always the result of a user action, we want to dismiss infobars, etc. like
1209 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421210 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511211 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431212
[email protected]a0e69262009-06-03 19:08:481213 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431214 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1215 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321216 if (existing_entry->update_virtual_url_with_url())
1217 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041218 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201219 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481220
[email protected]b77686522013-12-11 20:34:191221 // The page may have been requested with a different HTTP method.
1222 existing_entry->SetHasPostData(params.is_post);
1223 existing_entry->SetPostID(params.post_id);
1224
[email protected]cbab76d2008-10-13 22:42:471225 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431226}
1227
[email protected]d202a7c2012-01-04 07:53:471228void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321229 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221230 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi25f5f9e2015-07-17 20:08:261231 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1232 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111233
[email protected]e9ba4472008-09-14 15:42:431234 // Manual subframe navigations just get the current entry cloned so the user
1235 // can go back or forward to it. The actual subframe information will be
1236 // stored in the page state for each of those entries. This happens out of
1237 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091238 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1239 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381240
avi25764702015-06-23 15:43:371241 scoped_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081242 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis96fc55082015-06-13 06:42:381243 // Make sure new_entry takes ownership of frame_entry in a scoped_refptr.
1244 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
creis8b5cd4c2015-06-19 00:11:081245 rfh->frame_tree_node()->frame_tree_node_id(),
1246 params.item_sequence_number, params.document_sequence_number,
1247 rfh->GetSiteInstance(), params.url, params.referrer);
creis96fc55082015-06-13 06:42:381248 new_entry = GetLastCommittedEntry()->CloneAndReplace(rfh->frame_tree_node(),
1249 frame_entry);
creise062d542015-08-25 02:01:551250
1251 // TODO(creis): Make sure the last committed entry always has the subframe
1252 // entry to replace, and CHECK(frame_entry->HasOneRef). For now, we might
1253 // not find the entry to replace, and new_entry will be deleted when it goes
1254 // out of scope. See https://crbug.com/522193.
creis96fc55082015-06-13 06:42:381255 } else {
1256 new_entry = GetLastCommittedEntry()->Clone();
1257 }
1258
[email protected]36fc0392011-12-25 03:59:511259 new_entry->SetPageID(params.page_id);
avi25764702015-06-23 15:43:371260 InsertOrReplaceEntry(new_entry.Pass(), false);
[email protected]e9ba4472008-09-14 15:42:431261}
1262
[email protected]d202a7c2012-01-04 07:53:471263bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321264 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221265 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291266 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1267 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1268
[email protected]e9ba4472008-09-14 15:42:431269 // We're guaranteed to have a previously committed entry, and we now need to
1270 // handle navigation inside of a subframe in it without creating a new entry.
1271 DCHECK(GetLastCommittedEntry());
1272
avi98405c22015-05-21 20:47:061273 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511274 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
caitkp420384c62015-05-28 14:34:511275
creis3cdc3b02015-05-29 23:00:471276 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1277 // a history auto" navigation. Update the last committed index accordingly.
1278 // If we don't recognize the |nav_entry_id|, it might be either a pending
1279 // entry for a transfer or a recently pruned entry. We'll handle it below.
1280 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061281 // Make sure that a subframe commit isn't changing the main frame's
1282 // origin. Otherwise the renderer process may be confused, leading to a
1283 // URL spoof. We can't check the path since that may change
1284 // (https://crbug.com/373041).
1285 if (GetLastCommittedEntry()->GetURL().GetOrigin() !=
1286 GetEntryAtIndex(entry_index)->GetURL().GetOrigin()) {
1287 // TODO(creis): This is unexpectedly being encountered in practice. If
1288 // you encounter this in practice, please post details to
1289 // https://crbug.com/486916. Once that's resolved, we'll change this to
1290 // kill the renderer process with bad_message::NC_AUTO_SUBFRAME.
1291 NOTREACHED() << "Unexpected main frame origin change on AUTO_SUBFRAME.";
1292 }
creis3cdc3b02015-05-29 23:00:471293
1294 // TODO(creis): Update the FrameNavigationEntry in --site-per-process.
avi98405c22015-05-21 20:47:061295 last_committed_entry_index_ = entry_index;
1296 DiscardNonCommittedEntriesInternal();
1297 return true;
1298 }
[email protected]e9ba4472008-09-14 15:42:431299 }
[email protected]f233e4232013-02-23 00:55:141300
nickd30fd962015-07-27 21:51:081301 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121302 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1303 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121304 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081305 last_committed->AddOrUpdateFrameEntry(
1306 rfh->frame_tree_node(), params.item_sequence_number,
1307 params.document_sequence_number, rfh->GetSiteInstance(), params.url,
1308 params.referrer, params.page_state);
creis3cdc3b02015-05-29 23:00:471309
1310 // Cross-process subframe navigations may leave a pending entry around.
creisefbbbb52015-06-01 19:28:541311 // Clear it if it's actually for the subframe.
creis3cdc3b02015-05-29 23:00:471312 // TODO(creis): Don't use pending entries for subframe navigations.
creisefbbbb52015-06-01 19:28:541313 // See https://crbug.com/495161.
1314 if (pending_entry_ &&
1315 pending_entry_->frame_tree_node_id() ==
1316 rfh->frame_tree_node()->frame_tree_node_id()) {
1317 DiscardPendingEntry(false);
1318 }
creis625a0c7d2015-03-24 23:17:121319 }
1320
[email protected]f233e4232013-02-23 00:55:141321 // We do not need to discard the pending entry in this case, since we will
1322 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431323 return false;
1324}
1325
[email protected]d202a7c2012-01-04 07:53:471326int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231327 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201328 const NavigationEntries::const_iterator i(std::find(
1329 entries_.begin(),
1330 entries_.end(),
1331 entry));
1332 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1333}
1334
avidb7d1d22015-06-08 21:21:501335// There are two general cases where a navigation is "in page":
1336// 1. A fragment navigation, in which the url is kept the same except for the
1337// reference fragment.
1338// 2. A history API navigation (pushState and replaceState). This case is
1339// always in-page, but the urls are not guaranteed to match excluding the
1340// fragment. The relevant spec allows pushState/replaceState to any URL on
1341// the same origin.
1342// However, due to reloads, even identical urls are *not* guaranteed to be
1343// in-page navigations, we have to trust the renderer almost entirely.
1344// The one thing we do know is that cross-origin navigations will *never* be
1345// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1346// and assume the renderer is malicious if a cross-origin navigation claims to
1347// be in-page.
[email protected]ce760d742012-08-30 22:31:101348bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121349 const GURL& url,
1350 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231351 RenderFrameHost* rfh) const {
avidb7d1d22015-06-08 21:21:501352 GURL last_committed_url;
1353 if (rfh->GetParent()) {
1354 last_committed_url = rfh->GetLastCommittedURL();
1355 } else {
1356 NavigationEntry* last_committed = GetLastCommittedEntry();
1357 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1358 // might Blink say that a navigation is in-page yet there be no last-
1359 // committed entry?
1360 if (!last_committed)
1361 return false;
1362 last_committed_url = last_committed->GetURL();
1363 }
1364
1365 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
1366 bool is_same_origin = last_committed_url.is_empty() ||
1367 // TODO(japhet): We should only permit navigations
1368 // originating from about:blank to be in-page if the
1369 // about:blank is the first document that frame loaded.
1370 // We don't have sufficient information to identify
1371 // that case at the moment, so always allow about:blank
1372 // for now.
1373 last_committed_url == GURL(url::kAboutBlankURL) ||
1374 last_committed_url.GetOrigin() == url.GetOrigin() ||
1375 !prefs.web_security_enabled ||
1376 (prefs.allow_universal_access_from_file_urls &&
1377 last_committed_url.SchemeIs(url::kFileScheme));
1378 if (!is_same_origin && renderer_says_in_page) {
1379 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1380 bad_message::NC_IN_PAGE_NAVIGATION);
1381 }
1382 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431383}
1384
[email protected]d202a7c2012-01-04 07:53:471385void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501386 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471387 const NavigationControllerImpl& source =
1388 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571389 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551390 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571391
[email protected]a26023822011-12-29 00:23:551392 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571393 return; // Nothing new to do.
1394
1395 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551396 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571397
[email protected]fdac6ade2013-07-20 01:06:301398 for (SessionStorageNamespaceMap::const_iterator it =
1399 source.session_storage_namespace_map_.begin();
1400 it != source.session_storage_namespace_map_.end();
1401 ++it) {
1402 SessionStorageNamespaceImpl* source_namespace =
1403 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1404 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1405 }
[email protected]4e6419c2010-01-15 04:50:341406
[email protected]2ca1ea662012-10-04 02:26:361407 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571408
1409 // Copy the max page id map from the old tab to the new tab. This ensures
1410 // that new and existing navigations in the tab's current SiteInstances
1411 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571412 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571413}
1414
[email protected]d202a7c2012-01-04 07:53:471415void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571416 NavigationController* temp,
1417 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161418 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011419 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161420
[email protected]d202a7c2012-01-04 07:53:471421 NavigationControllerImpl* source =
1422 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251423
avi2b177592014-12-10 02:08:021424 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011425 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251426
[email protected]474f8512013-05-31 22:31:161427 // We now have one entry, possibly with a new pending entry. Ensure that
1428 // adding the entries from source won't put us over the limit.
1429 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571430 if (!replace_entry)
1431 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251432
[email protected]47e020a2010-10-15 14:43:371433 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021434 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161435 // since it has not committed in source.
1436 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251437 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551438 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251439 else
1440 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571441
1442 // Ignore the source's current entry if merging with replacement.
1443 // TODO(davidben): This should preserve entries forward of the current
1444 // too. http://crbug.com/317872
1445 if (replace_entry && max_source_index > 0)
1446 max_source_index--;
1447
[email protected]47e020a2010-10-15 14:43:371448 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251449
1450 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551451 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141452
avi2b177592014-12-10 02:08:021453 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1454 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571455
avi2b177592014-12-10 02:08:021456 // Copy the max page id map from the old tab to the new tab. This ensures that
1457 // new and existing navigations in the tab's current SiteInstances are
1458 // identified properly.
creis3da03872015-02-20 21:12:321459 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avi2b177592014-12-10 02:08:021460 int32 site_max_page_id =
1461 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571462 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021463 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1464 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421465 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251466}
1467
[email protected]79368982013-11-13 01:11:011468bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161469 // If there is no last committed entry, we cannot prune. Even if there is a
1470 // pending entry, it may not commit, leaving this WebContents blank, despite
1471 // possibly giving it new entries via CopyStateFromAndPrune.
1472 if (last_committed_entry_index_ == -1)
1473 return false;
[email protected]9350602e2013-02-26 23:27:441474
[email protected]474f8512013-05-31 22:31:161475 // We cannot prune if there is a pending entry at an existing entry index.
1476 // It may not commit, so we have to keep the last committed entry, and thus
1477 // there is no sensible place to keep the pending entry. It is ok to have
1478 // a new pending entry, which can optionally commit as a new navigation.
1479 if (pending_entry_index_ != -1)
1480 return false;
1481
1482 // We should not prune if we are currently showing a transient entry.
1483 if (transient_entry_index_ != -1)
1484 return false;
1485
1486 return true;
1487}
1488
[email protected]79368982013-11-13 01:11:011489void NavigationControllerImpl::PruneAllButLastCommitted() {
1490 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161491
avi2b177592014-12-10 02:08:021492 DCHECK_EQ(0, last_committed_entry_index_);
1493 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441494
avi2b177592014-12-10 02:08:021495 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1496 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441497}
1498
[email protected]79368982013-11-13 01:11:011499void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161500 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011501 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261502
[email protected]474f8512013-05-31 22:31:161503 // Erase all entries but the last committed entry. There may still be a
1504 // new pending entry after this.
1505 entries_.erase(entries_.begin(),
1506 entries_.begin() + last_committed_entry_index_);
1507 entries_.erase(entries_.begin() + 1, entries_.end());
1508 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261509}
1510
[email protected]15f46dc2013-01-24 05:40:241511void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101512 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241513}
1514
[email protected]d1198fd2012-08-13 22:50:191515void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301516 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211517 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191518 if (!session_storage_namespace)
1519 return;
1520
1521 // We can't overwrite an existing SessionStorage without violating spec.
1522 // Attempts to do so may give a tab access to another tab's session storage
1523 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301524 bool successful_insert = session_storage_namespace_map_.insert(
1525 make_pair(partition_id,
1526 static_cast<SessionStorageNamespaceImpl*>(
1527 session_storage_namespace)))
1528 .second;
1529 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191530}
1531
[email protected]d202a7c2012-01-04 07:53:471532void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561533 max_restored_page_id_ = max_id;
1534}
1535
[email protected]d202a7c2012-01-04 07:53:471536int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561537 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551538}
1539
[email protected]aa62afd2014-04-22 19:22:461540bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461541 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101542 !GetLastCommittedEntry() &&
1543 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461544}
1545
[email protected]a26023822011-12-29 00:23:551546SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301547NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1548 std::string partition_id;
1549 if (instance) {
1550 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1551 // this if statement so |instance| must not be NULL.
1552 partition_id =
1553 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1554 browser_context_, instance->GetSiteURL());
1555 }
[email protected]d1198fd2012-08-13 22:50:191556
[email protected]fdac6ade2013-07-20 01:06:301557 SessionStorageNamespaceMap::const_iterator it =
1558 session_storage_namespace_map_.find(partition_id);
1559 if (it != session_storage_namespace_map_.end())
1560 return it->second.get();
1561
1562 // Create one if no one has accessed session storage for this partition yet.
1563 //
1564 // TODO(ajwong): Should this use the |partition_id| directly rather than
1565 // re-lookup via |instance|? http://crbug.com/142685
1566 StoragePartition* partition =
1567 BrowserContext::GetStoragePartition(browser_context_, instance);
1568 SessionStorageNamespaceImpl* session_storage_namespace =
1569 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411570 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301571 partition->GetDOMStorageContext()));
1572 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1573
1574 return session_storage_namespace;
1575}
1576
1577SessionStorageNamespace*
1578NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1579 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1580 return GetSessionStorageNamespace(NULL);
1581}
1582
1583const SessionStorageNamespaceMap&
1584NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1585 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551586}
[email protected]d202a7c2012-01-04 07:53:471587
1588bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561589 return needs_reload_;
1590}
[email protected]a26023822011-12-29 00:23:551591
[email protected]46bb5e9c2013-10-03 22:16:471592void NavigationControllerImpl::SetNeedsReload() {
1593 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541594
1595 if (last_committed_entry_index_ != -1) {
1596 entries_[last_committed_entry_index_]->SetTransitionType(
1597 ui::PAGE_TRANSITION_RELOAD);
1598 }
[email protected]46bb5e9c2013-10-03 22:16:471599}
1600
[email protected]d202a7c2012-01-04 07:53:471601void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551602 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121603 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311604
1605 DiscardNonCommittedEntries();
1606
1607 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121608 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311609 last_committed_entry_index_--;
1610}
1611
[email protected]d202a7c2012-01-04 07:53:471612void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471613 bool transient = transient_entry_index_ != -1;
1614 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291615
[email protected]cbab76d2008-10-13 22:42:471616 // If there was a transient entry, invalidate everything so the new active
1617 // entry state is shown.
1618 if (transient) {
[email protected]7f924832014-08-09 05:57:221619 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471620 }
initial.commit09911bf2008-07-26 23:55:291621}
1622
creis3da03872015-02-20 21:12:321623NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251624 return pending_entry_;
1625}
1626
[email protected]d202a7c2012-01-04 07:53:471627int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551628 return pending_entry_index_;
1629}
1630
avi25764702015-06-23 15:43:371631void NavigationControllerImpl::InsertOrReplaceEntry(
1632 scoped_ptr<NavigationEntryImpl> entry, bool replace) {
Sylvain Defresnec6ccc77d2014-09-19 10:19:351633 DCHECK(entry->GetTransitionType() != ui::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201634
avi5cad4912015-06-19 05:25:441635 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1636 // need to keep continuity with the pending entry, so copy the pending entry's
1637 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1638 // then the renderer navigated on its own, independent of the pending entry,
1639 // so don't copy anything.
1640 if (pending_entry_ && pending_entry_index_ == -1)
1641 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201642
[email protected]cbab76d2008-10-13 22:42:471643 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201644
1645 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221646
1647 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181648 if (replace && current_size > 0) {
creisee17e932015-07-17 17:56:221649 int32 page_id = entry->GetPageID();
1650
1651 // ScopedVectors don't automatically delete the replaced value, so make sure
1652 // the previous value gets deleted.
1653 scoped_ptr<NavigationEntryImpl> old_entry(
1654 entries_[last_committed_entry_index_]);
1655 entries_[last_committed_entry_index_] = entry.release();
1656
1657 // This is a new page ID, so we need everybody to know about it.
1658 delegate_->UpdateMaxPageID(page_id);
1659 return;
1660 }
[email protected]765b35502008-08-21 00:51:201661
creis37979a62015-08-04 19:48:181662 // We shouldn't see replace == true when there's no committed entries.
1663 DCHECK(!replace);
1664
[email protected]765b35502008-08-21 00:51:201665 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451666 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311667 // last_committed_entry_index_ must be updated here since calls to
1668 // NotifyPrunedEntries() below may re-enter and we must make sure
1669 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491670 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311671 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491672 num_pruned++;
[email protected]765b35502008-08-21 00:51:201673 entries_.pop_back();
1674 current_size--;
1675 }
[email protected]c12bf1a12008-09-17 16:28:491676 if (num_pruned > 0) // Only notify if we did prune something.
1677 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201678 }
1679
[email protected]944822b2012-03-02 20:57:251680 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201681
avi25764702015-06-23 15:43:371682 int32 page_id = entry->GetPageID();
1683 entries_.push_back(entry.Pass());
[email protected]765b35502008-08-21 00:51:201684 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431685
1686 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371687 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291688}
1689
[email protected]944822b2012-03-02 20:57:251690void NavigationControllerImpl::PruneOldestEntryIfFull() {
1691 if (entries_.size() >= max_entry_count()) {
1692 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021693 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251694 RemoveEntryAtIndex(0);
1695 NotifyPrunedEntries(this, true, 1);
1696 }
1697}
1698
[email protected]d202a7c2012-01-04 07:53:471699void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011700 needs_reload_ = false;
1701
[email protected]83c2e232011-10-07 21:36:461702 // If we were navigating to a slow-to-commit page, and the user performs
1703 // a session history navigation to the last committed page, RenderViewHost
1704 // will force the throbber to start, but WebKit will essentially ignore the
1705 // navigation, and won't send a message to stop the throbber. To prevent this
1706 // from happening, we drop the navigation here and stop the slow-to-commit
1707 // page from loading (which would normally happen during the navigation).
1708 if (pending_entry_index_ != -1 &&
1709 pending_entry_index_ == last_committed_entry_index_ &&
1710 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231711 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511712 (entries_[pending_entry_index_]->GetTransitionType() &
Sylvain Defresnec6ccc77d2014-09-19 10:19:351713 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571714 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121715
1716 // If an interstitial page is showing, we want to close it to get back
1717 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571718 if (delegate_->GetInterstitialPage())
1719 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121720
[email protected]83c2e232011-10-07 21:36:461721 DiscardNonCommittedEntries();
1722 return;
1723 }
1724
[email protected]6a13a6c2011-12-20 21:47:121725 // If an interstitial page is showing, the previous renderer is blocked and
1726 // cannot make new requests. Unblock (and disable) it to allow this
1727 // navigation to succeed. The interstitial will stay visible until the
1728 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571729 if (delegate_->GetInterstitialPage()) {
1730 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131731 CancelForNavigation();
1732 }
[email protected]6a13a6c2011-12-20 21:47:121733
initial.commit09911bf2008-07-26 23:55:291734 // For session history navigations only the pending_entry_index_ is set.
1735 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341736 CHECK_NE(pending_entry_index_, -1);
avi25764702015-06-23 15:43:371737 pending_entry_ = entries_[pending_entry_index_];
initial.commit09911bf2008-07-26 23:55:291738 }
1739
creiscf40d9c2015-09-11 18:20:541740 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1741 // renderer process is not live, unless it is the initial navigation of the
1742 // tab.
1743 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1744 // TODO(creis): Find the RVH for the correct frame.
1745 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1746 !IsInitialNavigation()) {
1747 DiscardNonCommittedEntries();
1748 return;
1749 }
1750 }
1751
[email protected]40fd3032014-02-28 22:16:281752 // This call does not support re-entrancy. See http://crbug.com/347742.
1753 CHECK(!in_navigate_to_pending_entry_);
1754 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301755 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281756 in_navigate_to_pending_entry_ = false;
1757
1758 if (!success)
[email protected]cbab76d2008-10-13 22:42:471759 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291760}
1761
creis4e2ecb72015-06-20 00:46:301762bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1763 ReloadType reload_type) {
1764 DCHECK(pending_entry_);
1765 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1766
1767 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1768 // navigate the main frame or use the main frame's FrameNavigationEntry to
1769 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081770 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301771 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1772 FrameTreeNode* frame = root;
1773 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1774 if (ftn_id != -1) {
1775 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1776 DCHECK(frame);
1777 }
1778 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1779 reload_type, false);
1780 }
1781
1782 // In --site-per-process, we compare FrameNavigationEntries to see which
1783 // frames in the tree need to be navigated.
1784 FrameLoadVector same_document_loads;
1785 FrameLoadVector different_document_loads;
1786 if (GetLastCommittedEntry()) {
1787 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1788 }
1789
1790 if (same_document_loads.empty() && different_document_loads.empty()) {
1791 // If we don't have any frames to navigate at this point, either
1792 // (1) there is no previous history entry to compare against, or
1793 // (2) we were unable to match any frames by name. In the first case,
1794 // doing a different document navigation to the root item is the only valid
1795 // thing to do. In the second case, we should have been able to find a
1796 // frame to navigate based on names if this were a same document
1797 // navigation, so we can safely assume this is the different document case.
1798 different_document_loads.push_back(
1799 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1800 }
1801
1802 // If all the frame loads fail, we will discard the pending entry.
1803 bool success = false;
1804
1805 // Send all the same document frame loads before the different document loads.
1806 for (const auto& item : same_document_loads) {
1807 FrameTreeNode* frame = item.first;
1808 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1809 reload_type, true);
1810 }
1811 for (const auto& item : different_document_loads) {
1812 FrameTreeNode* frame = item.first;
1813 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1814 reload_type, false);
1815 }
1816 return success;
1817}
1818
1819void NavigationControllerImpl::FindFramesToNavigate(
1820 FrameTreeNode* frame,
1821 FrameLoadVector* same_document_loads,
1822 FrameLoadVector* different_document_loads) {
1823 DCHECK(pending_entry_);
1824 DCHECK_GE(last_committed_entry_index_, 0);
1825 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
1826 FrameNavigationEntry* old_item =
1827 GetLastCommittedEntry()->GetFrameEntry(frame);
1828 if (!new_item)
1829 return;
1830
1831 // Schedule a load in this frame if the new item isn't for the same item
1832 // sequence number in the same SiteInstance.
1833 if (!old_item ||
1834 new_item->item_sequence_number() != old_item->item_sequence_number() ||
1835 new_item->site_instance() != old_item->site_instance()) {
1836 if (old_item &&
1837 new_item->document_sequence_number() ==
1838 old_item->document_sequence_number()) {
1839 same_document_loads->push_back(std::make_pair(frame, new_item));
1840 } else {
1841 different_document_loads->push_back(std::make_pair(frame, new_item));
1842 }
1843 return;
1844 }
1845
1846 for (size_t i = 0; i < frame->child_count(); i++) {
1847 FindFramesToNavigate(frame->child_at(i), same_document_loads,
1848 different_document_loads);
1849 }
1850}
1851
[email protected]d202a7c2012-01-04 07:53:471852void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211853 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271854 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401855
[email protected]2db9bd72012-04-13 20:20:561856 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401857 // location bar will have up-to-date information about the security style
1858 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131859 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401860
[email protected]7f924832014-08-09 05:57:221861 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:571862 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461863
[email protected]b0f724c2013-09-05 04:21:131864 // TODO(avi): Remove. http://crbug.com/170921
1865 NotificationDetails notification_details =
1866 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211867 NotificationService::current()->Notify(
1868 NOTIFICATION_NAV_ENTRY_COMMITTED,
1869 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401870 notification_details);
initial.commit09911bf2008-07-26 23:55:291871}
1872
initial.commit09911bf2008-07-26 23:55:291873// static
[email protected]d202a7c2012-01-04 07:53:471874size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231875 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1876 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211877 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231878}
1879
[email protected]d202a7c2012-01-04 07:53:471880void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221881 if (is_active && needs_reload_)
1882 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291883}
1884
[email protected]d202a7c2012-01-04 07:53:471885void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291886 if (!needs_reload_)
1887 return;
1888
initial.commit09911bf2008-07-26 23:55:291889 // Calling Reload() results in ignoring state, and not loading.
1890 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1891 // cached state.
avicc872d7242015-08-19 21:26:341892 if (pending_entry_) {
1893 NavigateToPendingEntry(NO_RELOAD);
1894 } else if (last_committed_entry_index_ != -1) {
1895 pending_entry_index_ = last_committed_entry_index_;
1896 NavigateToPendingEntry(NO_RELOAD);
1897 } else {
1898 // If there is something to reload, the successful reload will clear the
1899 // |needs_reload_| flag. Otherwise, just do it here.
1900 needs_reload_ = false;
1901 }
initial.commit09911bf2008-07-26 23:55:291902}
1903
avi47179332015-05-20 21:01:111904void NavigationControllerImpl::NotifyEntryChanged(
1905 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:211906 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091907 det.changed_entry = entry;
avi47179332015-05-20 21:01:111908 det.index = GetIndexOfEntry(
1909 NavigationEntryImpl::FromNavigationEntry(entry));
[email protected]8ff00d72012-10-23 19:12:211910 NotificationService::current()->Notify(
1911 NOTIFICATION_NAV_ENTRY_CHANGED,
1912 Source<NavigationController>(this),
1913 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291914}
1915
[email protected]d202a7c2012-01-04 07:53:471916void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361917 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551918 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361919 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291920
[email protected]71fde352011-12-29 03:29:561921 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291922
1923 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291924}
[email protected]765b35502008-08-21 00:51:201925
[email protected]d202a7c2012-01-04 07:53:471926void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:451927 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:481928 DiscardTransientEntry();
1929}
1930
avi45a72532015-04-07 21:01:451931void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:281932 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:401933 // progress, since this will cause a use-after-free. (We only allow this
1934 // when the tab is being destroyed for shutdown, since it won't return to
1935 // NavigateToEntry in that case.) http://crbug.com/347742.
1936 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:281937
avi45a72532015-04-07 21:01:451938 if (was_failure && pending_entry_) {
1939 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
1940 failed_pending_entry_should_replace_ =
1941 pending_entry_->should_replace_entry();
1942 } else {
1943 failed_pending_entry_id_ = 0;
1944 }
1945
[email protected]765b35502008-08-21 00:51:201946 if (pending_entry_index_ == -1)
1947 delete pending_entry_;
1948 pending_entry_ = NULL;
1949 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471950}
1951
[email protected]d202a7c2012-01-04 07:53:471952void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471953 if (transient_entry_index_ == -1)
1954 return;
[email protected]a0e69262009-06-03 19:08:481955 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181956 if (last_committed_entry_index_ > transient_entry_index_)
1957 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471958 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201959}
1960
[email protected]d202a7c2012-01-04 07:53:471961int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111962 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201963 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111964 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511965 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201966 return i;
1967 }
1968 return -1;
1969}
[email protected]cbab76d2008-10-13 22:42:471970
avi7c6f35e2015-05-08 17:52:381971int NavigationControllerImpl::GetEntryIndexWithUniqueID(
1972 int nav_entry_id) const {
1973 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
1974 if (entries_[i]->GetUniqueID() == nav_entry_id)
1975 return i;
1976 }
1977 return -1;
1978}
1979
creis3da03872015-02-20 21:12:321980NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471981 if (transient_entry_index_ == -1)
1982 return NULL;
avi25764702015-06-23 15:43:371983 return entries_[transient_entry_index_];
[email protected]cbab76d2008-10-13 22:42:471984}
[email protected]e1cd5452010-08-26 18:03:251985
avi25764702015-06-23 15:43:371986void NavigationControllerImpl::SetTransientEntry(
1987 scoped_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:211988 // Discard any current transient entry, we can only have one at a time.
1989 int index = 0;
1990 if (last_committed_entry_index_ != -1)
1991 index = last_committed_entry_index_ + 1;
1992 DiscardTransientEntry();
avi25764702015-06-23 15:43:371993 entries_.insert(entries_.begin() + index,
1994 NavigationEntryImpl::FromNavigationEntry(entry.release()));
[email protected]0b684262013-02-20 02:18:211995 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:221996 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:211997}
1998
[email protected]d202a7c2012-01-04 07:53:471999void NavigationControllerImpl::InsertEntriesFrom(
2000 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252001 int max_index) {
[email protected]a26023822011-12-29 00:23:552002 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252003 size_t insert_index = 0;
2004 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352005 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372006 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352007 // TODO(creis): Once we start sharing FrameNavigationEntries between
2008 // NavigationEntries, it will not be safe to share them with another tab.
2009 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252010 entries_.insert(entries_.begin() + insert_index++,
avi25764702015-06-23 15:43:372011 source.entries_[i]->Clone().Pass());
[email protected]e1cd5452010-08-26 18:03:252012 }
2013 }
2014}
[email protected]c5b88d82012-10-06 17:03:332015
2016void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2017 const base::Callback<base::Time()>& get_timestamp_callback) {
2018 get_timestamp_callback_ = get_timestamp_callback;
2019}
[email protected]8ff00d72012-10-23 19:12:212020
2021} // namespace content