blob: a6a7a9d6fd30a22648e99d55dece89bf84ac9757 [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}
megjablond5ac7d52015-10-22 23:56:12291void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
292 ReloadInternal(check_for_repost, RELOAD_DISABLE_LOFI_MODE);
293}
[email protected]1ccb3568d2010-02-19 10:51:16294
[email protected]d202a7c2012-01-04 07:53:47295void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
296 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36297 if (transient_entry_index_ != -1) {
298 // If an interstitial is showing, treat a reload as a navigation to the
299 // transient entry's URL.
creis3da03872015-02-20 21:12:32300 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27301 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36302 return;
[email protected]6286a3792013-10-09 04:03:27303 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21304 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35305 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27306 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47307 return;
[email protected]669e0ba2012-08-30 23:57:36308 }
[email protected]cbab76d2008-10-13 22:42:47309
[email protected]59167c22013-06-03 18:07:32310 NavigationEntryImpl* entry = NULL;
311 int current_index = -1;
312
313 // If we are reloading the initial navigation, just use the current
314 // pending entry. Otherwise look up the current entry.
315 if (IsInitialNavigation() && pending_entry_) {
316 entry = pending_entry_;
317 // The pending entry might be in entries_ (e.g., after a Clone), so we
318 // should also update the current_index.
319 current_index = pending_entry_index_;
320 } else {
321 DiscardNonCommittedEntriesInternal();
322 current_index = GetCurrentEntryIndex();
323 if (current_index != -1) {
creis3da03872015-02-20 21:12:32324 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32325 }
[email protected]979a4bc2013-04-24 01:27:15326 }
[email protected]241db352013-04-22 18:04:05327
[email protected]59167c22013-06-03 18:07:32328 // If we are no where, then we can't reload. TODO(darin): We should add a
329 // CanReload method.
330 if (!entry)
331 return;
332
[email protected]cdcb1dee2012-01-04 00:46:20333 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32334 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30335 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07336 // they really want to do this. If they do, the dialog will call us back
337 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57338 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02339
[email protected]106a0812010-03-18 00:15:12340 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57341 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29342 } else {
[email protected]59167c22013-06-03 18:07:32343 if (!IsInitialNavigation())
344 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26345
[email protected]bcd904482012-02-01 01:54:22346 // If we are reloading an entry that no longer belongs to the current
347 // site instance (for example, refreshing a page for just installed app),
348 // the reload must happen in a new process.
349 // The new entry must have a new page_id and site instance, so it behaves
350 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30351 // Tabs that are discarded due to low memory conditions may not have a site
352 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32353 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21354 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10355 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
356 site_instance->GetProcess()->IsForGuestsOnly();
357 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30358 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22359 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46360 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22361 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
362 CreateNavigationEntry(
363 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37364 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26365
[email protected]11535962012-02-09 21:02:10366 // Mark the reload type as NO_RELOAD, so navigation will not be considered
367 // a reload in the renderer.
368 reload_type = NavigationController::NO_RELOAD;
369
[email protected]e2caa032012-11-15 23:29:18370 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22371 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46372 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22373 } else {
[email protected]59167c22013-06-03 18:07:32374 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22375 pending_entry_index_ = current_index;
376
377 // The title of the page being reloaded might have been removed in the
378 // meanwhile, so we need to revert to the default title upon reload and
379 // invalidate the previously cached title (SetTitle will do both).
380 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26381 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22382
Sylvain Defresnec6ccc77d2014-09-19 10:19:35383 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22384 }
385
[email protected]1ccb3568d2010-02-19 10:51:16386 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29387 }
388}
389
[email protected]d202a7c2012-01-04 07:53:47390void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12391 DCHECK(pending_reload_ != NO_RELOAD);
392 pending_reload_ = NO_RELOAD;
393}
394
[email protected]d202a7c2012-01-04 07:53:47395void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12396 if (pending_reload_ == NO_RELOAD) {
397 NOTREACHED();
398 } else {
399 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02400 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12401 }
402}
403
[email protected]cd2e15742013-03-08 04:08:31404bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09405 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11406}
407
creis10a4ab72015-10-13 17:22:40408bool NavigationControllerImpl::IsInitialBlankNavigation() const {
409 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
410 // we'll need to check for entry count 1 and restore_type RESTORE_NONE (to
411 // exclude the cloned tab case).
412 return IsInitialNavigation() && GetEntryCount() == 0;
413}
414
[email protected]d202a7c2012-01-04 07:53:47415NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33416 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11417 int index = GetEntryIndexWithPageID(instance, page_id);
avi25764702015-06-23 15:43:37418 return (index != -1) ? entries_[index] : nullptr;
[email protected]765b35502008-08-21 00:51:20419}
420
avi254eff02015-07-01 08:27:58421NavigationEntryImpl*
422NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
423 int index = GetEntryIndexWithUniqueID(nav_entry_id);
424 return (index != -1) ? entries_[index] : nullptr;
425}
426
avi25764702015-06-23 15:43:37427void NavigationControllerImpl::LoadEntry(
428 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20429 // When navigating to a new page, we don't know for sure if we will actually
430 // end up leaving the current page. The new page load could for example
431 // result in a download or a 'no content' response (e.g., a mailto: URL).
avi25764702015-06-23 15:43:37432 SetPendingEntry(entry.Pass());
[email protected]59167c22013-06-03 18:07:32433 NavigateToPendingEntry(NO_RELOAD);
434}
435
avi25764702015-06-23 15:43:37436void NavigationControllerImpl::SetPendingEntry(
437 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47438 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37439 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21440 NotificationService::current()->Notify(
441 NOTIFICATION_NAV_ENTRY_PENDING,
442 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37443 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20444}
445
creis3da03872015-02-20 21:12:32446NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47447 if (transient_entry_index_ != -1)
avi25764702015-06-23 15:43:37448 return entries_[transient_entry_index_];
[email protected]cbab76d2008-10-13 22:42:47449 if (pending_entry_)
450 return pending_entry_;
451 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20452}
453
creis3da03872015-02-20 21:12:32454NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19455 if (transient_entry_index_ != -1)
avi25764702015-06-23 15:43:37456 return entries_[transient_entry_index_];
[email protected]59167c22013-06-03 18:07:32457 // The pending entry is safe to return for new (non-history), browser-
458 // initiated navigations. Most renderer-initiated navigations should not
459 // show the pending entry, to prevent URL spoof attacks.
460 //
461 // We make an exception for renderer-initiated navigations in new tabs, as
462 // long as no other page has tried to access the initial empty document in
463 // the new tab. If another page modifies this blank page, a URL spoof is
464 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32465 bool safe_to_show_pending =
466 pending_entry_ &&
467 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09468 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32469 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46470 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32471
472 // Also allow showing the pending entry for history navigations in a new tab,
473 // such as Ctrl+Back. In this case, no existing page is visible and no one
474 // can script the new tab before it commits.
475 if (!safe_to_show_pending &&
476 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09477 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32478 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34479 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32480 safe_to_show_pending = true;
481
482 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19483 return pending_entry_;
484 return GetLastCommittedEntry();
485}
486
[email protected]d202a7c2012-01-04 07:53:47487int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47488 if (transient_entry_index_ != -1)
489 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20490 if (pending_entry_index_ != -1)
491 return pending_entry_index_;
492 return last_committed_entry_index_;
493}
494
creis3da03872015-02-20 21:12:32495NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20496 if (last_committed_entry_index_ == -1)
497 return NULL;
avi25764702015-06-23 15:43:37498 return entries_[last_committed_entry_index_];
[email protected]765b35502008-08-21 00:51:20499}
500
[email protected]d202a7c2012-01-04 07:53:47501bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57502 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25503 bool is_viewable_mime_type =
504 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59505 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27506 NavigationEntry* visible_entry = GetVisibleEntry();
507 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57508 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16509}
510
[email protected]d202a7c2012-01-04 07:53:47511int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55512 return last_committed_entry_index_;
513}
514
[email protected]d202a7c2012-01-04 07:53:47515int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25516 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55517 return static_cast<int>(entries_.size());
518}
519
creis3da03872015-02-20 21:12:32520NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25521 int index) const {
avi25764702015-06-23 15:43:37522 if (index < 0 || index >= GetEntryCount())
523 return nullptr;
524
525 return entries_[index];
[email protected]022af742011-12-28 18:37:25526}
527
creis3da03872015-02-20 21:12:32528NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25529 int offset) const {
avi057ce1492015-06-29 15:59:47530 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20531}
532
[email protected]9ba14052012-06-22 23:50:03533int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46534 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03535}
536
[email protected]9677a3c2012-12-22 04:18:58537void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10538 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58539}
540
[email protected]1a3f5312013-04-26 21:00:10541void NavigationControllerImpl::SetScreenshotManager(
avi67081d0ae2015-07-27 18:25:46542 scoped_ptr<NavigationEntryScreenshotManager> manager) {
543 if (manager.get())
544 screenshot_manager_ = manager.Pass();
545 else
546 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58547}
548
[email protected]d202a7c2012-01-04 07:53:47549bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22550 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20551}
552
[email protected]d202a7c2012-01-04 07:53:47553bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22554 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20555}
556
[email protected]9ba14052012-06-22 23:50:03557bool NavigationControllerImpl::CanGoToOffset(int offset) const {
558 int index = GetIndexForOffset(offset);
559 return index >= 0 && index < GetEntryCount();
560}
561
[email protected]d202a7c2012-01-04 07:53:47562void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20563 if (!CanGoBack()) {
564 NOTREACHED();
565 return;
566 }
567
568 // Base the navigation on where we are now...
569 int current_index = GetCurrentEntryIndex();
570
[email protected]cbab76d2008-10-13 22:42:47571 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20572
573 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25574 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35575 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51576 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35577 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16578 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20579}
580
[email protected]d202a7c2012-01-04 07:53:47581void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20582 if (!CanGoForward()) {
583 NOTREACHED();
584 return;
585 }
586
[email protected]cbab76d2008-10-13 22:42:47587 bool transient = (transient_entry_index_ != -1);
588
[email protected]765b35502008-08-21 00:51:20589 // Base the navigation on where we are now...
590 int current_index = GetCurrentEntryIndex();
591
[email protected]cbab76d2008-10-13 22:42:47592 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20593
[email protected]cbab76d2008-10-13 22:42:47594 pending_entry_index_ = current_index;
595 // If there was a transient entry, we removed it making the current index
596 // the next page.
597 if (!transient)
598 pending_entry_index_++;
599
[email protected]022af742011-12-28 18:37:25600 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35601 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51602 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35603 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16604 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20605}
606
[email protected]d202a7c2012-01-04 07:53:47607void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20608 if (index < 0 || index >= static_cast<int>(entries_.size())) {
609 NOTREACHED();
610 return;
611 }
612
[email protected]cbab76d2008-10-13 22:42:47613 if (transient_entry_index_ != -1) {
614 if (index == transient_entry_index_) {
615 // Nothing to do when navigating to the transient.
616 return;
617 }
618 if (index > transient_entry_index_) {
619 // Removing the transient is goint to shift all entries by 1.
620 index--;
621 }
622 }
623
624 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20625
626 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25627 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35628 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51629 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35630 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16631 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20632}
633
[email protected]d202a7c2012-01-04 07:53:47634void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03635 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20636 return;
637
[email protected]9ba14052012-06-22 23:50:03638 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20639}
640
[email protected]41374f12013-07-24 02:49:28641bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
642 if (index == last_committed_entry_index_ ||
643 index == pending_entry_index_)
644 return false;
[email protected]6a13a6c2011-12-20 21:47:12645
[email protected]43032342011-03-21 14:10:31646 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28647 return true;
[email protected]cbab76d2008-10-13 22:42:47648}
649
[email protected]d202a7c2012-01-04 07:53:47650void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23651 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32652 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31653 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51654 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
655 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32656 }
657}
658
[email protected]d202a7c2012-01-04 07:53:47659void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47660 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21661 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35662 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47663 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47664 LoadURLParams params(url);
665 params.referrer = referrer;
666 params.transition_type = transition;
667 params.extra_headers = extra_headers;
668 LoadURLWithParams(params);
669}
670
671void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43672 TRACE_EVENT1("browser,navigation",
673 "NavigationControllerImpl::LoadURLWithParams",
674 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43675 if (HandleDebugURL(params.url, params.transition_type)) {
676 // If Telemetry is running, allow the URL load to proceed as if it's
677 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49678 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43679 cc::switches::kEnableGpuBenchmarking))
680 return;
681 }
[email protected]8bf1048012012-02-08 01:22:18682
[email protected]cf002332012-08-14 19:17:47683 // Checks based on params.load_type.
684 switch (params.load_type) {
685 case LOAD_TYPE_DEFAULT:
686 break;
687 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e8ca69c2014-05-07 15:31:19688 if (!params.url.SchemeIs(url::kHttpScheme) &&
689 !params.url.SchemeIs(url::kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47690 NOTREACHED() << "Http post load must use http(s) scheme.";
691 return;
692 }
693 break;
694 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26695 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47696 NOTREACHED() << "Data load must use data scheme.";
697 return;
698 }
699 break;
700 default:
701 NOTREACHED();
702 break;
703 };
[email protected]e47ae9472011-10-13 19:48:34704
[email protected]e47ae9472011-10-13 19:48:34705 // The user initiated a load, we don't need to reload anymore.
706 needs_reload_ = false;
707
[email protected]cf002332012-08-14 19:17:47708 bool override = false;
709 switch (params.override_user_agent) {
710 case UA_OVERRIDE_INHERIT:
711 override = ShouldKeepOverride(GetLastCommittedEntry());
712 break;
713 case UA_OVERRIDE_TRUE:
714 override = true;
715 break;
716 case UA_OVERRIDE_FALSE:
717 override = false;
718 break;
719 default:
720 NOTREACHED();
721 break;
[email protected]d1ef81d2012-07-24 11:39:36722 }
723
avi25764702015-06-23 15:43:37724 scoped_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30725
726 // For subframes, create a pending entry with a corresponding frame entry.
727 int frame_tree_node_id = params.frame_tree_node_id;
728 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
729 FrameTreeNode* node =
730 params.frame_tree_node_id != -1
731 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
732 : delegate_->GetFrameTree()->FindByName(params.frame_name);
733 if (node && !node->IsMainFrame()) {
734 DCHECK(GetLastCommittedEntry());
735
736 // Update the FTN ID to use below in case we found a named frame.
737 frame_tree_node_id = node->frame_tree_node_id();
738
739 // In --site-per-process, create an identical NavigationEntry with a
740 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08741 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30742 entry = GetLastCommittedEntry()->Clone();
743 entry->SetPageID(-1);
744 entry->AddOrUpdateFrameEntry(node, -1, -1, nullptr, params.url,
745 params.referrer, PageState());
746 }
747 }
creis6a93a812015-04-24 23:13:17748 }
creis4e2ecb72015-06-20 00:46:30749
750 // Otherwise, create a pending entry for the main frame.
751 if (!entry) {
752 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
753 params.url, params.referrer, params.transition_type,
754 params.is_renderer_initiated, params.extra_headers, browser_context_));
755 }
756 // Set the FTN ID (only used in non-site-per-process, for tests).
757 entry->set_frame_tree_node_id(frame_tree_node_id);
lfg9ef7d2d2014-12-15 22:32:30758 entry->set_source_site_instance(
759 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
[email protected]f8872902013-10-30 03:18:57760 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21761 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39762 // Don't allow an entry replacement if there is no entry to replace.
763 // http://crbug.com/457149
764 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18765 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13766 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47767 entry->SetIsOverridingUserAgent(override);
768 entry->set_transferred_global_request_id(
769 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36770
clamy8451aa62015-01-23 16:56:08771#if defined(OS_ANDROID)
772 if (params.intent_received_timestamp > 0) {
773 entry->set_intent_received_timestamp(
774 base::TimeTicks() +
775 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
776 }
qinmin976d4d92015-08-07 18:32:39777 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08778#endif
779
[email protected]cf002332012-08-14 19:17:47780 switch (params.load_type) {
781 case LOAD_TYPE_DEFAULT:
782 break;
783 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
784 entry->SetHasPostData(true);
785 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46786 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47787 break;
788 case LOAD_TYPE_DATA:
789 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
790 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37791 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47792 break;
793 default:
794 NOTREACHED();
795 break;
796 };
[email protected]132e281a2012-07-31 18:32:44797
avi25764702015-06-23 15:43:37798 LoadEntry(entry.Pass());
[email protected]132e281a2012-07-31 18:32:44799}
800
[email protected]d202a7c2012-01-04 07:53:47801bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32802 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22803 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21804 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31805 is_initial_navigation_ = false;
806
[email protected]0e8db942008-09-24 21:21:48807 // Save the previous state before we clobber it.
808 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51809 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55810 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48811 } else {
812 details->previous_url = GURL();
813 details->previous_entry_index = -1;
814 }
[email protected]ecd9d8702008-08-28 22:10:17815
fdegans9caf66a2015-07-30 21:10:42816 // If there is a pending entry at this point, it should have a SiteInstance,
817 // except for restored entries.
818 DCHECK(pending_entry_index_ == -1 ||
819 pending_entry_->site_instance() ||
820 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
821 if (pending_entry_ &&
822 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
823 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]e9ba4472008-09-14 15:42:43824
[email protected]bcd904482012-02-01 01:54:22825 // If we are doing a cross-site reload, we need to replace the existing
826 // navigation entry, not add another entry to the history. This has the side
avi45a72532015-04-07 21:01:45827 // effect of removing forward browsing history, if such existed. Or if we are
828 // doing a cross-site redirect navigation, we will do a similar thing.
829 //
830 // If this is an error load, we may have already removed the pending entry
831 // when we got the notice of the load failure. If so, look at the copy of the
832 // pending parameters that were saved.
833 if (params.url_is_unreachable && failed_pending_entry_id_ != 0) {
834 details->did_replace_entry = failed_pending_entry_should_replace_;
835 } else {
836 details->did_replace_entry = pending_entry_ &&
837 pending_entry_->should_replace_entry();
838 }
[email protected]bcd904482012-02-01 01:54:22839
[email protected]e9ba4472008-09-14 15:42:43840 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43841 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20842
[email protected]b9d4dfdc2013-08-08 00:25:12843 // is_in_page must be computed before the entry gets committed.
avidb7d1d22015-06-08 21:21:50844 details->is_in_page = IsURLInPageNavigation(
[email protected]5cfbddc2014-06-23 23:52:23845 params.url, params.was_within_same_page, rfh);
[email protected]b9d4dfdc2013-08-08 00:25:12846
[email protected]0e8db942008-09-24 21:21:48847 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21848 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43849 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43850 break;
[email protected]8ff00d72012-10-23 19:12:21851 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36852 details->did_replace_entry = details->is_in_page;
[email protected]27dd82fd2014-03-03 22:11:43853 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43854 break;
[email protected]8ff00d72012-10-23 19:12:21855 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43856 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43857 break;
[email protected]8ff00d72012-10-23 19:12:21858 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43859 RendererDidNavigateNewSubframe(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43860 break;
[email protected]8ff00d72012-10-23 19:12:21861 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43862 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43863 return false;
864 break;
[email protected]8ff00d72012-10-23 19:12:21865 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49866 // If a pending navigation was in progress, this canceled it. We should
867 // discard it and make sure it is removed from the URL bar. After that,
868 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43869 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49870 if (pending_entry_) {
871 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57872 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49873 }
[email protected]e9ba4472008-09-14 15:42:43874 return false;
875 default:
876 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20877 }
878
[email protected]688aa65c62012-09-28 04:32:22879 // At this point, we know that the navigation has just completed, so
880 // record the time.
881 //
882 // TODO(akalin): Use "sane time" as described in
883 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33884 base::Time timestamp =
885 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
886 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22887 << timestamp.ToInternalValue();
888
[email protected]f233e4232013-02-23 00:55:14889 // We should not have a pending entry anymore. Clear it again in case any
890 // error cases above forgot to do so.
891 DiscardNonCommittedEntriesInternal();
892
[email protected]e9ba4472008-09-14 15:42:43893 // All committed entries should have nonempty content state so WebKit doesn't
894 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04895 DCHECK(params.page_state.IsValid());
creis3da03872015-02-20 21:12:32896 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22897 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44898 active_entry->SetHttpStatusCode(params.http_status_code);
nickd30fd962015-07-27 21:51:08899 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30900 // Update the frame-specific PageState.
901 FrameNavigationEntry* frame_entry =
902 active_entry->GetFrameEntry(rfh->frame_tree_node());
creise062d542015-08-25 02:01:55903 // We may not find a frame_entry in some cases; ignore the PageState if so.
904 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
905 if (frame_entry)
906 frame_entry->set_page_state(params.page_state);
creis4e2ecb72015-06-20 00:46:30907 } else {
908 active_entry->SetPageState(params.page_state);
909 }
[email protected]c1982ff2014-04-23 03:37:21910 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44911
[email protected]d6def3d2014-05-19 18:55:32912 // Use histogram to track memory impact of redirect chain because it's now
913 // not cleared for committed entries.
914 size_t redirect_chain_size = 0;
915 for (size_t i = 0; i < params.redirects.size(); ++i) {
916 redirect_chain_size += params.redirects[i].spec().length();
917 }
918 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
919
[email protected]97d8f0d2013-10-29 16:49:21920 // Once it is committed, we no longer need to track several pieces of state on
921 // the entry.
922 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13923
[email protected]49bd30e62011-03-22 20:12:59924 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22925 // TODO(creis): This check won't pass for subframes until we create entries
926 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00927 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42928 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59929
[email protected]b26de072013-02-23 02:33:44930 // Remember the bindings the renderer process has at this point, so that
931 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32932 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44933
[email protected]e9ba4472008-09-14 15:42:43934 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00935 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00936 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31937 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53938
939 // Deserialize the security info and kill the renderer if
940 // deserialization fails. The navigation will continue with default
941 // SSLStatus values.
942 if (!DeserializeSecurityInfo(params.security_info, &details->ssl_status)) {
943 bad_message::ReceivedBadMessage(
944 rfh->GetProcess(),
945 bad_message::WC_RENDERER_DID_NAVIGATE_BAD_SECURITY_INFO);
946 }
947
[email protected]93f230e02011-06-01 14:40:00948 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29949
avi286019ce2015-07-29 01:26:58950 // Update the RenderViewHost of the top-level RenderFrameHost's notion of what
951 // entry it's showing for use later.
952 RenderFrameHostImpl* main_frame =
953 rfh->frame_tree_node()->frame_tree()->root()->current_frame_host();
954 static_cast<RenderViewHostImpl*>(main_frame->GetRenderViewHost())->
955 set_nav_entry_id(active_entry->GetUniqueID());
956
[email protected]e9ba4472008-09-14 15:42:43957 return true;
initial.commit09911bf2008-07-26 23:55:29958}
959
[email protected]8ff00d72012-10-23 19:12:21960NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32961 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22962 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38963 if (params.did_create_new_entry) {
964 // A new entry. We may or may not have a pending entry for the page, and
965 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00966 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38967 return NAVIGATION_TYPE_NEW_PAGE;
968 }
969
970 // When this is a new subframe navigation, we should have a committed page
971 // in which it's a subframe. This may not be the case when an iframe is
972 // navigated on a popup navigated to about:blank (the iframe would be
973 // written into the popup by script on the main page). For these cases,
974 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:23975 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:38976 return NAVIGATION_TYPE_NAV_IGNORE;
977
978 // Valid subframe navigation.
979 return NAVIGATION_TYPE_NEW_SUBFRAME;
980 }
981
982 // We only clear the session history when navigating to a new page.
983 DCHECK(!params.history_list_was_cleared);
984
avi39c1edd32015-06-04 20:06:00985 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38986 // All manual subframes would be did_create_new_entry and handled above, so
987 // we know this is auto.
988 if (GetLastCommittedEntry()) {
989 return NAVIGATION_TYPE_AUTO_SUBFRAME;
990 } else {
991 // We ignore subframes created in non-committed pages; we'd appreciate if
992 // people stopped doing that.
993 return NAVIGATION_TYPE_NAV_IGNORE;
994 }
995 }
996
997 if (params.nav_entry_id == 0) {
998 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
999 // create a new page.
1000
1001 // Just like above in the did_create_new_entry case, it's possible to
1002 // scribble onto an uncommitted page. Again, there isn't any navigation
1003 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231004 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231005 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381006 return NAVIGATION_TYPE_NAV_IGNORE;
1007
avi259dc792015-07-07 04:42:361008 // This is history.replaceState(), history.reload(), or a client-side
1009 // redirect.
1010 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381011 }
1012
1013 if (pending_entry_ && pending_entry_index_ == -1 &&
1014 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1015 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421016 // didn't do a new navigation (params.did_create_new_entry). First check to
1017 // make sure Blink didn't treat a new cross-process navigation as inert, and
1018 // thus set params.did_create_new_entry to false. In that case, we must
1019 // treat it as NEW since the SiteInstance doesn't match the entry.
1020 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
1021 return NAVIGATION_TYPE_NEW_PAGE;
1022
1023 // Otherwise, this happens when you press enter in the URL bar to reload. We
1024 // will create a pending entry, but Blink will convert it to a reload since
1025 // it's the same page and not create a new entry for it (the user doesn't
1026 // want to have a new back/forward entry when they do this). Therefore we
1027 // want to just ignore the pending entry and go back to where we were (the
1028 // "existing entry").
1029 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381030 return NAVIGATION_TYPE_SAME_PAGE;
1031 }
1032
1033 if (params.intended_as_new_entry) {
1034 // This was intended to be a navigation to a new entry but the pending entry
1035 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1036 // may not have a pending entry.
1037 return NAVIGATION_TYPE_EXISTING_PAGE;
1038 }
1039
1040 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1041 params.nav_entry_id == failed_pending_entry_id_) {
1042 // If the renderer was going to a new pending entry that got cleared because
1043 // of an error, this is the case of the user trying to retry a failed load
1044 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1045 // have a pending entry.
1046 return NAVIGATION_TYPE_EXISTING_PAGE;
1047 }
1048
1049 // Now we know that the notification is for an existing page. Find that entry.
1050 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1051 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441052 // The renderer has committed a navigation to an entry that no longer
1053 // exists. Because the renderer is showing that page, resurrect that entry.
1054 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381055 }
1056
avi7c6f35e2015-05-08 17:52:381057 // Since we weeded out "new" navigations above, we know this is an existing
1058 // (back/forward) navigation.
1059 return NAVIGATION_TYPE_EXISTING_PAGE;
1060}
1061
[email protected]d202a7c2012-01-04 07:53:471062void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321063 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221064 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221065 bool replace_entry) {
avi25764702015-06-23 15:43:371066 scoped_ptr<NavigationEntryImpl> new_entry;
[email protected]f1eb87a2011-05-06 17:49:411067 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:341068 // Only make a copy of the pending entry if it is appropriate for the new page
1069 // that was just loaded. We verify this at a coarse grain by checking that
avi5cad4912015-06-19 05:25:441070 // the SiteInstance hasn't been assigned to something else, and by making sure
1071 // that the pending entry was intended as a new entry (rather than being a
1072 // history navigation that was interrupted by an unrelated, renderer-initiated
1073 // navigation).
1074 if (pending_entry_ && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341075 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431076 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351077 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431078
[email protected]f1eb87a2011-05-06 17:49:411079 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431080 } else {
avi25764702015-06-23 15:43:371081 new_entry = make_scoped_ptr(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241082
1083 // Find out whether the new entry needs to update its virtual URL on URL
1084 // change and set up the entry accordingly. This is needed to correctly
1085 // update the virtual URL when replaceState is called after a pushState.
1086 GURL url = params.url;
1087 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431088 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1089 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241090 new_entry->set_update_virtual_url_with_url(needs_update);
1091
[email protected]f1eb87a2011-05-06 17:49:411092 // When navigating to a new page, give the browser URL handler a chance to
1093 // update the virtual URL based on the new URL. For example, this is needed
1094 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1095 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241096 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431097 }
1098
wjmaclean7431bb22015-02-19 14:53:431099 // Don't use the page type from the pending entry. Some interstitial page
1100 // may have set the type to interstitial. Once we commit, however, the page
1101 // type must always be normal or error.
1102 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1103 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041104 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411105 if (update_virtual_url)
avi25764702015-06-23 15:43:371106 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251107 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511108 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251109 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331110 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431111 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511112 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051113 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231114 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221115 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431116
creis8b5cd4c2015-06-19 00:11:081117 // Update the FrameNavigationEntry for new main frame commits.
1118 FrameNavigationEntry* frame_entry =
1119 new_entry->GetFrameEntry(rfh->frame_tree_node());
1120 frame_entry->set_item_sequence_number(params.item_sequence_number);
1121 frame_entry->set_document_sequence_number(params.document_sequence_number);
1122
[email protected]ff64b3e2014-05-31 04:07:331123 // history.pushState() is classified as a navigation to a new page, but
1124 // sets was_within_same_page to true. In this case, we already have the
[email protected]3a868f212014-08-09 10:41:191125 // title and favicon available, so set them immediately.
1126 if (params.was_within_same_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331127 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191128 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1129 }
[email protected]ff64b3e2014-05-31 04:07:331130
[email protected]60d6cca2013-04-30 08:47:131131 DCHECK(!params.history_list_was_cleared || !replace_entry);
1132 // The browser requested to clear the session history when it initiated the
1133 // navigation. Now we know that the renderer has updated its state accordingly
1134 // and it is safe to also clear the browser side history.
1135 if (params.history_list_was_cleared) {
1136 DiscardNonCommittedEntriesInternal();
1137 entries_.clear();
1138 last_committed_entry_index_ = -1;
1139 }
1140
avi25764702015-06-23 15:43:371141 InsertOrReplaceEntry(new_entry.Pass(), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431142}
1143
[email protected]d202a7c2012-01-04 07:53:471144void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321145 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221146 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431147 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001148 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431149
avicbdc4c12015-07-01 16:07:111150 NavigationEntryImpl* entry;
1151 if (params.intended_as_new_entry) {
1152 // This was intended as a new entry but the pending entry was lost in the
1153 // meanwhile and no new page was created. We are stuck at the last committed
1154 // entry.
1155 entry = GetLastCommittedEntry();
1156 } else if (params.nav_entry_id) {
1157 // This is a browser-initiated navigation (back/forward/reload).
1158 entry = GetEntryWithUniqueID(params.nav_entry_id);
1159 } else {
1160 // This is renderer-initiated. The only kinds of renderer-initated
1161 // navigations that are EXISTING_PAGE are reloads and location.replace,
1162 // which land us at the last committed entry.
1163 entry = GetLastCommittedEntry();
1164 }
1165 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431166
[email protected]5ccd4dc2012-10-24 02:28:141167 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431168 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1169 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041170 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201171 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321172 if (entry->update_virtual_url_with_url())
1173 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141174
1175 // The redirected to page should not inherit the favicon from the previous
1176 // page.
Sylvain Defresnec6ccc77d2014-09-19 10:19:351177 if (ui::PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481178 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141179
1180 // The site instance will normally be the same except during session restore,
1181 // when no site instance will be assigned.
fdegans9caf66a2015-07-30 21:10:421182 DCHECK(entry->site_instance() == nullptr ||
[email protected]27dd82fd2014-03-03 22:11:431183 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331184 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431185 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431186
[email protected]36fc0392011-12-25 03:59:511187 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051188 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411189
[email protected]e9ba4472008-09-14 15:42:431190 // The entry we found in the list might be pending if the user hit
1191 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591192 // list, we can just discard the pending pointer). We should also discard the
1193 // pending entry if it corresponds to a different navigation, since that one
1194 // is now likely canceled. If it is not canceled, we will treat it as a new
1195 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431196 //
1197 // Note that we need to use the "internal" version since we don't want to
1198 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491199 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391200
[email protected]80858db52009-10-15 00:35:181201 // If a transient entry was removed, the indices might have changed, so we
1202 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111203 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431204}
1205
[email protected]d202a7c2012-01-04 07:53:471206void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321207 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221208 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291209 // This classification says that we have a pending entry that's the same as
1210 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091211 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291212 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431213
creis77c9aa32015-09-25 19:59:421214 // If we classified this correctly, the SiteInstance should not have changed.
1215 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1216
[email protected]e9ba4472008-09-14 15:42:431217 // We assign the entry's unique ID to be that of the new one. Since this is
1218 // always the result of a user action, we want to dismiss infobars, etc. like
1219 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421220 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511221 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431222
[email protected]a0e69262009-06-03 19:08:481223 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431224 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1225 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321226 if (existing_entry->update_virtual_url_with_url())
1227 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041228 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201229 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481230
[email protected]b77686522013-12-11 20:34:191231 // The page may have been requested with a different HTTP method.
1232 existing_entry->SetHasPostData(params.is_post);
1233 existing_entry->SetPostID(params.post_id);
1234
[email protected]cbab76d2008-10-13 22:42:471235 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431236}
1237
[email protected]d202a7c2012-01-04 07:53:471238void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321239 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221240 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi25f5f9e2015-07-17 20:08:261241 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1242 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111243
[email protected]e9ba4472008-09-14 15:42:431244 // Manual subframe navigations just get the current entry cloned so the user
1245 // can go back or forward to it. The actual subframe information will be
1246 // stored in the page state for each of those entries. This happens out of
1247 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091248 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1249 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381250
avi25764702015-06-23 15:43:371251 scoped_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081252 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis96fc55082015-06-13 06:42:381253 // Make sure new_entry takes ownership of frame_entry in a scoped_refptr.
1254 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
creis8b5cd4c2015-06-19 00:11:081255 rfh->frame_tree_node()->frame_tree_node_id(),
1256 params.item_sequence_number, params.document_sequence_number,
1257 rfh->GetSiteInstance(), params.url, params.referrer);
creis96fc55082015-06-13 06:42:381258 new_entry = GetLastCommittedEntry()->CloneAndReplace(rfh->frame_tree_node(),
1259 frame_entry);
creise062d542015-08-25 02:01:551260
1261 // TODO(creis): Make sure the last committed entry always has the subframe
1262 // entry to replace, and CHECK(frame_entry->HasOneRef). For now, we might
1263 // not find the entry to replace, and new_entry will be deleted when it goes
1264 // out of scope. See https://crbug.com/522193.
creis96fc55082015-06-13 06:42:381265 } else {
1266 new_entry = GetLastCommittedEntry()->Clone();
1267 }
1268
[email protected]36fc0392011-12-25 03:59:511269 new_entry->SetPageID(params.page_id);
avi25764702015-06-23 15:43:371270 InsertOrReplaceEntry(new_entry.Pass(), false);
[email protected]e9ba4472008-09-14 15:42:431271}
1272
[email protected]d202a7c2012-01-04 07:53:471273bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321274 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221275 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291276 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1277 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1278
[email protected]e9ba4472008-09-14 15:42:431279 // We're guaranteed to have a previously committed entry, and we now need to
1280 // handle navigation inside of a subframe in it without creating a new entry.
1281 DCHECK(GetLastCommittedEntry());
1282
avi98405c22015-05-21 20:47:061283 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511284 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
caitkp420384c62015-05-28 14:34:511285
creis3cdc3b02015-05-29 23:00:471286 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1287 // a history auto" navigation. Update the last committed index accordingly.
1288 // If we don't recognize the |nav_entry_id|, it might be either a pending
1289 // entry for a transfer or a recently pruned entry. We'll handle it below.
1290 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061291 // Make sure that a subframe commit isn't changing the main frame's
1292 // origin. Otherwise the renderer process may be confused, leading to a
1293 // URL spoof. We can't check the path since that may change
1294 // (https://crbug.com/373041).
1295 if (GetLastCommittedEntry()->GetURL().GetOrigin() !=
1296 GetEntryAtIndex(entry_index)->GetURL().GetOrigin()) {
1297 // TODO(creis): This is unexpectedly being encountered in practice. If
1298 // you encounter this in practice, please post details to
1299 // https://crbug.com/486916. Once that's resolved, we'll change this to
1300 // kill the renderer process with bad_message::NC_AUTO_SUBFRAME.
1301 NOTREACHED() << "Unexpected main frame origin change on AUTO_SUBFRAME.";
1302 }
creis3cdc3b02015-05-29 23:00:471303
1304 // TODO(creis): Update the FrameNavigationEntry in --site-per-process.
avi98405c22015-05-21 20:47:061305 last_committed_entry_index_ = entry_index;
1306 DiscardNonCommittedEntriesInternal();
1307 return true;
1308 }
[email protected]e9ba4472008-09-14 15:42:431309 }
[email protected]f233e4232013-02-23 00:55:141310
nickd30fd962015-07-27 21:51:081311 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121312 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1313 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121314 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081315 last_committed->AddOrUpdateFrameEntry(
1316 rfh->frame_tree_node(), params.item_sequence_number,
1317 params.document_sequence_number, rfh->GetSiteInstance(), params.url,
1318 params.referrer, params.page_state);
creis3cdc3b02015-05-29 23:00:471319
1320 // Cross-process subframe navigations may leave a pending entry around.
creisefbbbb52015-06-01 19:28:541321 // Clear it if it's actually for the subframe.
creis3cdc3b02015-05-29 23:00:471322 // TODO(creis): Don't use pending entries for subframe navigations.
creisefbbbb52015-06-01 19:28:541323 // See https://crbug.com/495161.
1324 if (pending_entry_ &&
1325 pending_entry_->frame_tree_node_id() ==
1326 rfh->frame_tree_node()->frame_tree_node_id()) {
1327 DiscardPendingEntry(false);
1328 }
creis625a0c7d2015-03-24 23:17:121329 }
1330
[email protected]f233e4232013-02-23 00:55:141331 // We do not need to discard the pending entry in this case, since we will
1332 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431333 return false;
1334}
1335
[email protected]d202a7c2012-01-04 07:53:471336int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231337 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201338 const NavigationEntries::const_iterator i(std::find(
1339 entries_.begin(),
1340 entries_.end(),
1341 entry));
1342 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1343}
1344
avidb7d1d22015-06-08 21:21:501345// There are two general cases where a navigation is "in page":
1346// 1. A fragment navigation, in which the url is kept the same except for the
1347// reference fragment.
1348// 2. A history API navigation (pushState and replaceState). This case is
1349// always in-page, but the urls are not guaranteed to match excluding the
1350// fragment. The relevant spec allows pushState/replaceState to any URL on
1351// the same origin.
1352// However, due to reloads, even identical urls are *not* guaranteed to be
1353// in-page navigations, we have to trust the renderer almost entirely.
1354// The one thing we do know is that cross-origin navigations will *never* be
1355// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1356// and assume the renderer is malicious if a cross-origin navigation claims to
1357// be in-page.
[email protected]ce760d742012-08-30 22:31:101358bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121359 const GURL& url,
1360 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231361 RenderFrameHost* rfh) const {
avidb7d1d22015-06-08 21:21:501362 GURL last_committed_url;
1363 if (rfh->GetParent()) {
1364 last_committed_url = rfh->GetLastCommittedURL();
1365 } else {
1366 NavigationEntry* last_committed = GetLastCommittedEntry();
1367 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1368 // might Blink say that a navigation is in-page yet there be no last-
1369 // committed entry?
1370 if (!last_committed)
1371 return false;
1372 last_committed_url = last_committed->GetURL();
1373 }
1374
1375 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
1376 bool is_same_origin = last_committed_url.is_empty() ||
1377 // TODO(japhet): We should only permit navigations
1378 // originating from about:blank to be in-page if the
1379 // about:blank is the first document that frame loaded.
1380 // We don't have sufficient information to identify
1381 // that case at the moment, so always allow about:blank
1382 // for now.
1383 last_committed_url == GURL(url::kAboutBlankURL) ||
1384 last_committed_url.GetOrigin() == url.GetOrigin() ||
1385 !prefs.web_security_enabled ||
1386 (prefs.allow_universal_access_from_file_urls &&
1387 last_committed_url.SchemeIs(url::kFileScheme));
1388 if (!is_same_origin && renderer_says_in_page) {
1389 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1390 bad_message::NC_IN_PAGE_NAVIGATION);
1391 }
1392 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431393}
1394
[email protected]d202a7c2012-01-04 07:53:471395void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501396 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471397 const NavigationControllerImpl& source =
1398 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571399 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551400 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571401
[email protected]a26023822011-12-29 00:23:551402 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571403 return; // Nothing new to do.
1404
1405 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551406 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571407
[email protected]fdac6ade2013-07-20 01:06:301408 for (SessionStorageNamespaceMap::const_iterator it =
1409 source.session_storage_namespace_map_.begin();
1410 it != source.session_storage_namespace_map_.end();
1411 ++it) {
1412 SessionStorageNamespaceImpl* source_namespace =
1413 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1414 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1415 }
[email protected]4e6419c2010-01-15 04:50:341416
[email protected]2ca1ea662012-10-04 02:26:361417 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571418
1419 // Copy the max page id map from the old tab to the new tab. This ensures
1420 // that new and existing navigations in the tab's current SiteInstances
1421 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571422 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571423}
1424
[email protected]d202a7c2012-01-04 07:53:471425void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571426 NavigationController* temp,
1427 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161428 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011429 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161430
[email protected]d202a7c2012-01-04 07:53:471431 NavigationControllerImpl* source =
1432 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251433
avi2b177592014-12-10 02:08:021434 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011435 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251436
[email protected]474f8512013-05-31 22:31:161437 // We now have one entry, possibly with a new pending entry. Ensure that
1438 // adding the entries from source won't put us over the limit.
1439 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571440 if (!replace_entry)
1441 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251442
[email protected]47e020a2010-10-15 14:43:371443 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021444 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161445 // since it has not committed in source.
1446 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251447 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551448 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251449 else
1450 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571451
1452 // Ignore the source's current entry if merging with replacement.
1453 // TODO(davidben): This should preserve entries forward of the current
1454 // too. http://crbug.com/317872
1455 if (replace_entry && max_source_index > 0)
1456 max_source_index--;
1457
[email protected]47e020a2010-10-15 14:43:371458 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251459
1460 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551461 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141462
avi2b177592014-12-10 02:08:021463 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1464 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571465
avi2b177592014-12-10 02:08:021466 // Copy the max page id map from the old tab to the new tab. This ensures that
1467 // new and existing navigations in the tab's current SiteInstances are
1468 // identified properly.
creis3da03872015-02-20 21:12:321469 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avi2b177592014-12-10 02:08:021470 int32 site_max_page_id =
1471 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571472 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021473 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1474 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421475 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251476}
1477
[email protected]79368982013-11-13 01:11:011478bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161479 // If there is no last committed entry, we cannot prune. Even if there is a
1480 // pending entry, it may not commit, leaving this WebContents blank, despite
1481 // possibly giving it new entries via CopyStateFromAndPrune.
1482 if (last_committed_entry_index_ == -1)
1483 return false;
[email protected]9350602e2013-02-26 23:27:441484
[email protected]474f8512013-05-31 22:31:161485 // We cannot prune if there is a pending entry at an existing entry index.
1486 // It may not commit, so we have to keep the last committed entry, and thus
1487 // there is no sensible place to keep the pending entry. It is ok to have
1488 // a new pending entry, which can optionally commit as a new navigation.
1489 if (pending_entry_index_ != -1)
1490 return false;
1491
1492 // We should not prune if we are currently showing a transient entry.
1493 if (transient_entry_index_ != -1)
1494 return false;
1495
1496 return true;
1497}
1498
[email protected]79368982013-11-13 01:11:011499void NavigationControllerImpl::PruneAllButLastCommitted() {
1500 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161501
avi2b177592014-12-10 02:08:021502 DCHECK_EQ(0, last_committed_entry_index_);
1503 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441504
avi2b177592014-12-10 02:08:021505 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1506 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441507}
1508
[email protected]79368982013-11-13 01:11:011509void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161510 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011511 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261512
[email protected]474f8512013-05-31 22:31:161513 // Erase all entries but the last committed entry. There may still be a
1514 // new pending entry after this.
1515 entries_.erase(entries_.begin(),
1516 entries_.begin() + last_committed_entry_index_);
1517 entries_.erase(entries_.begin() + 1, entries_.end());
1518 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261519}
1520
[email protected]15f46dc2013-01-24 05:40:241521void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101522 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241523}
1524
[email protected]d1198fd2012-08-13 22:50:191525void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301526 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211527 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191528 if (!session_storage_namespace)
1529 return;
1530
1531 // We can't overwrite an existing SessionStorage without violating spec.
1532 // Attempts to do so may give a tab access to another tab's session storage
1533 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301534 bool successful_insert = session_storage_namespace_map_.insert(
1535 make_pair(partition_id,
1536 static_cast<SessionStorageNamespaceImpl*>(
1537 session_storage_namespace)))
1538 .second;
1539 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191540}
1541
[email protected]d202a7c2012-01-04 07:53:471542void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561543 max_restored_page_id_ = max_id;
1544}
1545
[email protected]d202a7c2012-01-04 07:53:471546int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561547 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551548}
1549
[email protected]aa62afd2014-04-22 19:22:461550bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461551 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101552 !GetLastCommittedEntry() &&
1553 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461554}
1555
[email protected]a26023822011-12-29 00:23:551556SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301557NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1558 std::string partition_id;
1559 if (instance) {
1560 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1561 // this if statement so |instance| must not be NULL.
1562 partition_id =
1563 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1564 browser_context_, instance->GetSiteURL());
1565 }
[email protected]d1198fd2012-08-13 22:50:191566
[email protected]fdac6ade2013-07-20 01:06:301567 SessionStorageNamespaceMap::const_iterator it =
1568 session_storage_namespace_map_.find(partition_id);
1569 if (it != session_storage_namespace_map_.end())
1570 return it->second.get();
1571
1572 // Create one if no one has accessed session storage for this partition yet.
1573 //
1574 // TODO(ajwong): Should this use the |partition_id| directly rather than
1575 // re-lookup via |instance|? http://crbug.com/142685
1576 StoragePartition* partition =
1577 BrowserContext::GetStoragePartition(browser_context_, instance);
1578 SessionStorageNamespaceImpl* session_storage_namespace =
1579 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411580 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301581 partition->GetDOMStorageContext()));
1582 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1583
1584 return session_storage_namespace;
1585}
1586
1587SessionStorageNamespace*
1588NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1589 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1590 return GetSessionStorageNamespace(NULL);
1591}
1592
1593const SessionStorageNamespaceMap&
1594NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1595 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551596}
[email protected]d202a7c2012-01-04 07:53:471597
1598bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561599 return needs_reload_;
1600}
[email protected]a26023822011-12-29 00:23:551601
[email protected]46bb5e9c2013-10-03 22:16:471602void NavigationControllerImpl::SetNeedsReload() {
1603 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541604
1605 if (last_committed_entry_index_ != -1) {
1606 entries_[last_committed_entry_index_]->SetTransitionType(
1607 ui::PAGE_TRANSITION_RELOAD);
1608 }
[email protected]46bb5e9c2013-10-03 22:16:471609}
1610
[email protected]d202a7c2012-01-04 07:53:471611void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551612 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121613 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311614
1615 DiscardNonCommittedEntries();
1616
1617 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121618 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311619 last_committed_entry_index_--;
1620}
1621
[email protected]d202a7c2012-01-04 07:53:471622void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471623 bool transient = transient_entry_index_ != -1;
1624 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291625
[email protected]cbab76d2008-10-13 22:42:471626 // If there was a transient entry, invalidate everything so the new active
1627 // entry state is shown.
1628 if (transient) {
[email protected]7f924832014-08-09 05:57:221629 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471630 }
initial.commit09911bf2008-07-26 23:55:291631}
1632
creis3da03872015-02-20 21:12:321633NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251634 return pending_entry_;
1635}
1636
[email protected]d202a7c2012-01-04 07:53:471637int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551638 return pending_entry_index_;
1639}
1640
avi25764702015-06-23 15:43:371641void NavigationControllerImpl::InsertOrReplaceEntry(
1642 scoped_ptr<NavigationEntryImpl> entry, bool replace) {
Sylvain Defresnec6ccc77d2014-09-19 10:19:351643 DCHECK(entry->GetTransitionType() != ui::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201644
avi5cad4912015-06-19 05:25:441645 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1646 // need to keep continuity with the pending entry, so copy the pending entry's
1647 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1648 // then the renderer navigated on its own, independent of the pending entry,
1649 // so don't copy anything.
1650 if (pending_entry_ && pending_entry_index_ == -1)
1651 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201652
[email protected]cbab76d2008-10-13 22:42:471653 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201654
1655 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221656
1657 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181658 if (replace && current_size > 0) {
creisee17e932015-07-17 17:56:221659 int32 page_id = entry->GetPageID();
1660
1661 // ScopedVectors don't automatically delete the replaced value, so make sure
1662 // the previous value gets deleted.
1663 scoped_ptr<NavigationEntryImpl> old_entry(
1664 entries_[last_committed_entry_index_]);
1665 entries_[last_committed_entry_index_] = entry.release();
1666
1667 // This is a new page ID, so we need everybody to know about it.
1668 delegate_->UpdateMaxPageID(page_id);
1669 return;
1670 }
[email protected]765b35502008-08-21 00:51:201671
creis37979a62015-08-04 19:48:181672 // We shouldn't see replace == true when there's no committed entries.
1673 DCHECK(!replace);
1674
[email protected]765b35502008-08-21 00:51:201675 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451676 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311677 // last_committed_entry_index_ must be updated here since calls to
1678 // NotifyPrunedEntries() below may re-enter and we must make sure
1679 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491680 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311681 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491682 num_pruned++;
[email protected]765b35502008-08-21 00:51:201683 entries_.pop_back();
1684 current_size--;
1685 }
[email protected]c12bf1a12008-09-17 16:28:491686 if (num_pruned > 0) // Only notify if we did prune something.
1687 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201688 }
1689
[email protected]944822b2012-03-02 20:57:251690 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201691
avi25764702015-06-23 15:43:371692 int32 page_id = entry->GetPageID();
1693 entries_.push_back(entry.Pass());
[email protected]765b35502008-08-21 00:51:201694 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431695
1696 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371697 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291698}
1699
[email protected]944822b2012-03-02 20:57:251700void NavigationControllerImpl::PruneOldestEntryIfFull() {
1701 if (entries_.size() >= max_entry_count()) {
1702 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021703 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251704 RemoveEntryAtIndex(0);
1705 NotifyPrunedEntries(this, true, 1);
1706 }
1707}
1708
[email protected]d202a7c2012-01-04 07:53:471709void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011710 needs_reload_ = false;
1711
[email protected]83c2e232011-10-07 21:36:461712 // If we were navigating to a slow-to-commit page, and the user performs
1713 // a session history navigation to the last committed page, RenderViewHost
1714 // will force the throbber to start, but WebKit will essentially ignore the
1715 // navigation, and won't send a message to stop the throbber. To prevent this
1716 // from happening, we drop the navigation here and stop the slow-to-commit
1717 // page from loading (which would normally happen during the navigation).
1718 if (pending_entry_index_ != -1 &&
1719 pending_entry_index_ == last_committed_entry_index_ &&
1720 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231721 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511722 (entries_[pending_entry_index_]->GetTransitionType() &
Sylvain Defresnec6ccc77d2014-09-19 10:19:351723 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571724 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121725
1726 // If an interstitial page is showing, we want to close it to get back
1727 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571728 if (delegate_->GetInterstitialPage())
1729 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121730
[email protected]83c2e232011-10-07 21:36:461731 DiscardNonCommittedEntries();
1732 return;
1733 }
1734
[email protected]6a13a6c2011-12-20 21:47:121735 // If an interstitial page is showing, the previous renderer is blocked and
1736 // cannot make new requests. Unblock (and disable) it to allow this
1737 // navigation to succeed. The interstitial will stay visible until the
1738 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571739 if (delegate_->GetInterstitialPage()) {
1740 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131741 CancelForNavigation();
1742 }
[email protected]6a13a6c2011-12-20 21:47:121743
initial.commit09911bf2008-07-26 23:55:291744 // For session history navigations only the pending_entry_index_ is set.
1745 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341746 CHECK_NE(pending_entry_index_, -1);
avi25764702015-06-23 15:43:371747 pending_entry_ = entries_[pending_entry_index_];
initial.commit09911bf2008-07-26 23:55:291748 }
1749
creiscf40d9c2015-09-11 18:20:541750 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1751 // renderer process is not live, unless it is the initial navigation of the
1752 // tab.
1753 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1754 // TODO(creis): Find the RVH for the correct frame.
1755 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1756 !IsInitialNavigation()) {
1757 DiscardNonCommittedEntries();
1758 return;
1759 }
1760 }
1761
[email protected]40fd3032014-02-28 22:16:281762 // This call does not support re-entrancy. See http://crbug.com/347742.
1763 CHECK(!in_navigate_to_pending_entry_);
1764 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301765 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281766 in_navigate_to_pending_entry_ = false;
1767
1768 if (!success)
[email protected]cbab76d2008-10-13 22:42:471769 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291770}
1771
creis4e2ecb72015-06-20 00:46:301772bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1773 ReloadType reload_type) {
1774 DCHECK(pending_entry_);
1775 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1776
1777 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1778 // navigate the main frame or use the main frame's FrameNavigationEntry to
1779 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081780 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301781 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1782 FrameTreeNode* frame = root;
1783 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1784 if (ftn_id != -1) {
1785 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1786 DCHECK(frame);
1787 }
1788 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1789 reload_type, false);
1790 }
1791
1792 // In --site-per-process, we compare FrameNavigationEntries to see which
1793 // frames in the tree need to be navigated.
1794 FrameLoadVector same_document_loads;
1795 FrameLoadVector different_document_loads;
1796 if (GetLastCommittedEntry()) {
1797 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1798 }
1799
1800 if (same_document_loads.empty() && different_document_loads.empty()) {
1801 // If we don't have any frames to navigate at this point, either
1802 // (1) there is no previous history entry to compare against, or
1803 // (2) we were unable to match any frames by name. In the first case,
1804 // doing a different document navigation to the root item is the only valid
1805 // thing to do. In the second case, we should have been able to find a
1806 // frame to navigate based on names if this were a same document
1807 // navigation, so we can safely assume this is the different document case.
1808 different_document_loads.push_back(
1809 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1810 }
1811
1812 // If all the frame loads fail, we will discard the pending entry.
1813 bool success = false;
1814
1815 // Send all the same document frame loads before the different document loads.
1816 for (const auto& item : same_document_loads) {
1817 FrameTreeNode* frame = item.first;
1818 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1819 reload_type, true);
1820 }
1821 for (const auto& item : different_document_loads) {
1822 FrameTreeNode* frame = item.first;
1823 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1824 reload_type, false);
1825 }
1826 return success;
1827}
1828
1829void NavigationControllerImpl::FindFramesToNavigate(
1830 FrameTreeNode* frame,
1831 FrameLoadVector* same_document_loads,
1832 FrameLoadVector* different_document_loads) {
1833 DCHECK(pending_entry_);
1834 DCHECK_GE(last_committed_entry_index_, 0);
1835 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
1836 FrameNavigationEntry* old_item =
1837 GetLastCommittedEntry()->GetFrameEntry(frame);
1838 if (!new_item)
1839 return;
1840
1841 // Schedule a load in this frame if the new item isn't for the same item
1842 // sequence number in the same SiteInstance.
1843 if (!old_item ||
1844 new_item->item_sequence_number() != old_item->item_sequence_number() ||
1845 new_item->site_instance() != old_item->site_instance()) {
nick22bc1e2e2015-10-22 00:11:281846 // TODO(creis): Restore item and document sequence numbers so that they
1847 // can't be -1 here. See https://crbug.com/545219.
creis4e2ecb72015-06-20 00:46:301848 if (old_item &&
nick22bc1e2e2015-10-22 00:11:281849 new_item->document_sequence_number() != -1 &&
creis4e2ecb72015-06-20 00:46:301850 new_item->document_sequence_number() ==
1851 old_item->document_sequence_number()) {
1852 same_document_loads->push_back(std::make_pair(frame, new_item));
1853 } else {
1854 different_document_loads->push_back(std::make_pair(frame, new_item));
1855 }
1856 return;
1857 }
1858
1859 for (size_t i = 0; i < frame->child_count(); i++) {
1860 FindFramesToNavigate(frame->child_at(i), same_document_loads,
1861 different_document_loads);
1862 }
1863}
1864
[email protected]d202a7c2012-01-04 07:53:471865void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211866 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271867 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401868
[email protected]2db9bd72012-04-13 20:20:561869 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401870 // location bar will have up-to-date information about the security style
1871 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131872 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401873
[email protected]7f924832014-08-09 05:57:221874 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:571875 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461876
[email protected]b0f724c2013-09-05 04:21:131877 // TODO(avi): Remove. http://crbug.com/170921
1878 NotificationDetails notification_details =
1879 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211880 NotificationService::current()->Notify(
1881 NOTIFICATION_NAV_ENTRY_COMMITTED,
1882 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401883 notification_details);
initial.commit09911bf2008-07-26 23:55:291884}
1885
initial.commit09911bf2008-07-26 23:55:291886// static
[email protected]d202a7c2012-01-04 07:53:471887size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231888 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1889 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211890 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231891}
1892
[email protected]d202a7c2012-01-04 07:53:471893void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221894 if (is_active && needs_reload_)
1895 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291896}
1897
[email protected]d202a7c2012-01-04 07:53:471898void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291899 if (!needs_reload_)
1900 return;
1901
initial.commit09911bf2008-07-26 23:55:291902 // Calling Reload() results in ignoring state, and not loading.
1903 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1904 // cached state.
avicc872d7242015-08-19 21:26:341905 if (pending_entry_) {
1906 NavigateToPendingEntry(NO_RELOAD);
1907 } else if (last_committed_entry_index_ != -1) {
1908 pending_entry_index_ = last_committed_entry_index_;
1909 NavigateToPendingEntry(NO_RELOAD);
1910 } else {
1911 // If there is something to reload, the successful reload will clear the
1912 // |needs_reload_| flag. Otherwise, just do it here.
1913 needs_reload_ = false;
1914 }
initial.commit09911bf2008-07-26 23:55:291915}
1916
avi47179332015-05-20 21:01:111917void NavigationControllerImpl::NotifyEntryChanged(
1918 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:211919 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091920 det.changed_entry = entry;
avi47179332015-05-20 21:01:111921 det.index = GetIndexOfEntry(
1922 NavigationEntryImpl::FromNavigationEntry(entry));
[email protected]8ff00d72012-10-23 19:12:211923 NotificationService::current()->Notify(
1924 NOTIFICATION_NAV_ENTRY_CHANGED,
1925 Source<NavigationController>(this),
1926 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291927}
1928
[email protected]d202a7c2012-01-04 07:53:471929void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361930 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551931 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361932 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291933
[email protected]71fde352011-12-29 03:29:561934 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291935
1936 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291937}
[email protected]765b35502008-08-21 00:51:201938
[email protected]d202a7c2012-01-04 07:53:471939void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:451940 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:481941 DiscardTransientEntry();
1942}
1943
avi45a72532015-04-07 21:01:451944void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:281945 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:401946 // progress, since this will cause a use-after-free. (We only allow this
1947 // when the tab is being destroyed for shutdown, since it won't return to
1948 // NavigateToEntry in that case.) http://crbug.com/347742.
1949 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:281950
avi45a72532015-04-07 21:01:451951 if (was_failure && pending_entry_) {
1952 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
1953 failed_pending_entry_should_replace_ =
1954 pending_entry_->should_replace_entry();
1955 } else {
1956 failed_pending_entry_id_ = 0;
1957 }
1958
[email protected]765b35502008-08-21 00:51:201959 if (pending_entry_index_ == -1)
1960 delete pending_entry_;
1961 pending_entry_ = NULL;
1962 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471963}
1964
[email protected]d202a7c2012-01-04 07:53:471965void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471966 if (transient_entry_index_ == -1)
1967 return;
[email protected]a0e69262009-06-03 19:08:481968 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181969 if (last_committed_entry_index_ > transient_entry_index_)
1970 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471971 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201972}
1973
[email protected]d202a7c2012-01-04 07:53:471974int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111975 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201976 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111977 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511978 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201979 return i;
1980 }
1981 return -1;
1982}
[email protected]cbab76d2008-10-13 22:42:471983
avi7c6f35e2015-05-08 17:52:381984int NavigationControllerImpl::GetEntryIndexWithUniqueID(
1985 int nav_entry_id) const {
1986 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
1987 if (entries_[i]->GetUniqueID() == nav_entry_id)
1988 return i;
1989 }
1990 return -1;
1991}
1992
creis3da03872015-02-20 21:12:321993NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471994 if (transient_entry_index_ == -1)
1995 return NULL;
avi25764702015-06-23 15:43:371996 return entries_[transient_entry_index_];
[email protected]cbab76d2008-10-13 22:42:471997}
[email protected]e1cd5452010-08-26 18:03:251998
avi25764702015-06-23 15:43:371999void NavigationControllerImpl::SetTransientEntry(
2000 scoped_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212001 // Discard any current transient entry, we can only have one at a time.
2002 int index = 0;
2003 if (last_committed_entry_index_ != -1)
2004 index = last_committed_entry_index_ + 1;
2005 DiscardTransientEntry();
avi25764702015-06-23 15:43:372006 entries_.insert(entries_.begin() + index,
2007 NavigationEntryImpl::FromNavigationEntry(entry.release()));
[email protected]0b684262013-02-20 02:18:212008 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222009 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212010}
2011
[email protected]d202a7c2012-01-04 07:53:472012void NavigationControllerImpl::InsertEntriesFrom(
2013 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252014 int max_index) {
[email protected]a26023822011-12-29 00:23:552015 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252016 size_t insert_index = 0;
2017 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352018 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372019 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352020 // TODO(creis): Once we start sharing FrameNavigationEntries between
2021 // NavigationEntries, it will not be safe to share them with another tab.
2022 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252023 entries_.insert(entries_.begin() + insert_index++,
avi25764702015-06-23 15:43:372024 source.entries_[i]->Clone().Pass());
[email protected]e1cd5452010-08-26 18:03:252025 }
2026 }
2027}
[email protected]c5b88d82012-10-06 17:03:332028
2029void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2030 const base::Callback<base::Time()>& get_timestamp_callback) {
2031 get_timestamp_callback_ = get_timestamp_callback;
2032}
[email protected]8ff00d72012-10-23 19:12:212033
2034} // namespace content