blob: e1c24c7ff606c020ab72b233e1971917c9a510fb [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
dcheng36b6aec92015-12-26 06:16:3638#include <utility>
39
[email protected]c5b88d82012-10-06 17:03:3340#include "base/bind.h"
[email protected]eabfe1912014-05-12 10:07:2841#include "base/command_line.h"
initial.commit09911bf2008-07-26 23:55:2942#include "base/logging.h"
[email protected]d6def3d2014-05-19 18:55:3243#include "base/metrics/histogram.h"
[email protected]348fbaac2013-06-11 06:31:5144#include "base/strings/string_number_conversions.h" // Temporary
45#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0046#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3747#include "base/time/time.h"
ssid3e765612015-01-28 04:03:4248#include "base/trace_event/trace_event.h"
servolkf3955532015-05-16 00:01:5949#include "build/build_config.h"
[email protected]eabfe1912014-05-12 10:07:2850#include "cc/base/switches.h"
rsleevic327b48f82015-04-30 02:03:2551#include "components/mime_util/mime_util.h"
jamescookda2505812015-03-20 18:01:1852#include "content/browser/bad_message.h"
[email protected]825b1662012-03-12 19:07:3153#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4154#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0455#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4056#include "content/browser/frame_host/debug_urls.h"
57#include "content/browser/frame_host/interstitial_page_impl.h"
58#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2659#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
creis4e2ecb72015-06-20 00:46:3060#include "content/browser/frame_host/navigator.h"
[email protected]b3c41c0b2012-03-06 15:48:3261#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3362#include "content/browser/site_instance_impl.h"
[email protected]37567b432014-02-12 01:12:2263#include "content/common/frame_messages.h"
nickd30fd962015-07-27 21:51:0864#include "content/common/site_isolation_policy.h"
estarka5635c42015-07-14 00:06:5365#include "content/common/ssl_status_serialization.h"
[email protected]0aed2f52011-03-23 18:06:3666#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1167#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1968#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4669#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0070#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3871#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1672#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5873#include "content/public/browser/render_widget_host.h"
74#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3475#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3876#include "content/public/browser/user_metrics.h"
[email protected]d1198fd2012-08-13 22:50:1977#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3878#include "content/public/common/content_constants.h"
kinuko1be5023c2015-12-16 02:31:5779#include "content/public/common/content_switches.h"
servolkf3955532015-05-16 00:01:5980#include "media/base/mime_util.h"
[email protected]a23de8572009-06-03 02:16:3281#include "net/base/escape.h"
[email protected]7f070d42011-03-09 20:25:3282#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5883#include "skia/ext/platform_canvas.h"
[email protected]cca6f392014-05-28 21:32:2684#include "url/url_constants.h"
initial.commit09911bf2008-07-26 23:55:2985
[email protected]8ff00d72012-10-23 19:12:2186namespace content {
[email protected]e9ba4472008-09-14 15:42:4387namespace {
88
89// Invoked when entries have been pruned, or removed. For example, if the
90// current entries are [google, digg, yahoo], with the current entry google,
91// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4792void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4993 bool from_front,
94 int count) {
[email protected]8ff00d72012-10-23 19:12:2195 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4996 details.from_front = from_front;
97 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2198 NotificationService::current()->Notify(
99 NOTIFICATION_NAV_LIST_PRUNED,
100 Source<NavigationController>(nav_controller),
101 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:43102}
103
104// Ensure the given NavigationEntry has a valid state, so that WebKit does not
105// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:39106//
[email protected]e9ba4472008-09-14 15:42:43107// An empty state is treated as a new navigation by WebKit, which would mean
108// losing the navigation entries and generating a new navigation entry after
109// this one. We don't want that. To avoid this we create a valid state which
110// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:04111void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
112 if (!entry->GetPageState().IsValid())
113 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:43114}
115
[email protected]2ca1ea662012-10-04 02:26:36116NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
117 NavigationController::RestoreType type) {
118 switch (type) {
119 case NavigationController::RESTORE_CURRENT_SESSION:
120 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
121 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
122 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
123 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
124 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
125 }
126 NOTREACHED();
127 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
128}
129
[email protected]e9ba4472008-09-14 15:42:43130// Configure all the NavigationEntries in entries for restore. This resets
131// the transition type to reload and makes sure the content state isn't empty.
132void ConfigureEntriesForRestore(
avif16f85a72015-11-13 18:25:03133 std::vector<scoped_ptr<NavigationEntryImpl>>* entries,
[email protected]2ca1ea662012-10-04 02:26:36134 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:43135 for (size_t i = 0; i < entries->size(); ++i) {
136 // Use a transition type of reload so that we don't incorrectly increase
137 // the typed count.
Sylvain Defresnec6ccc77d2014-09-19 10:19:35138 (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:36139 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:43140 // NOTE(darin): This code is only needed for backwards compat.
avif16f85a72015-11-13 18:25:03141 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43142 }
143}
144
[email protected]bf70edce2012-06-20 22:32:22145// Determines whether or not we should be carrying over a user agent override
146// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21147bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22148 return last_entry && last_entry->GetIsOverridingUserAgent();
149}
150
[email protected]e9ba4472008-09-14 15:42:43151} // namespace
152
[email protected]d202a7c2012-01-04 07:53:47153// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29154
[email protected]23a918b2014-07-15 09:51:36155const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23156
[email protected]765b35502008-08-21 00:51:20157// static
[email protected]d202a7c2012-01-04 07:53:47158size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23159 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20160
[email protected]e6fec472013-05-14 05:29:02161// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20162// when testing.
163static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29164
[email protected]71fde352011-12-29 03:29:56165// static
avi25764702015-06-23 15:43:37166scoped_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56167 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20168 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35169 ui::PageTransition transition,
[email protected]71fde352011-12-29 03:29:56170 bool is_renderer_initiated,
171 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20172 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05173 // Fix up the given URL before letting it be rewritten, so that any minor
174 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
175 GURL dest_url(url);
176 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
177 browser_context);
178
[email protected]71fde352011-12-29 03:29:56179 // Allow the browser URL handler to rewrite the URL. This will, for example,
180 // remove "view-source:" from the beginning of the URL to get the URL that
181 // will actually be loaded. This real URL won't be shown to the user, just
182 // used internally.
creis94a977f62015-02-18 23:51:05183 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56184 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31185 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56186 &loaded_url, browser_context, &reverse_on_redirect);
187
188 NavigationEntryImpl* entry = new NavigationEntryImpl(
189 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56190 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56191 -1,
192 loaded_url,
193 referrer,
[email protected]fcf75d42013-12-03 20:11:26194 base::string16(),
[email protected]71fde352011-12-29 03:29:56195 transition,
196 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05197 entry->SetVirtualURL(dest_url);
198 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56199 entry->set_update_virtual_url_with_url(reverse_on_redirect);
200 entry->set_extra_headers(extra_headers);
avi25764702015-06-23 15:43:37201 return make_scoped_ptr(entry);
[email protected]71fde352011-12-29 03:29:56202}
203
[email protected]cdcb1dee2012-01-04 00:46:20204// static
205void NavigationController::DisablePromptOnRepost() {
206 g_check_for_repost = false;
207}
208
[email protected]c5b88d82012-10-06 17:03:33209base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
210 base::Time t) {
211 // If |t| is between the water marks, we're in a run of duplicates
212 // or just getting out of it, so increase the high-water mark to get
213 // a time that probably hasn't been used before and return it.
214 if (low_water_mark_ <= t && t <= high_water_mark_) {
215 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
216 return high_water_mark_;
217 }
218
219 // Otherwise, we're clear of the last duplicate run, so reset the
220 // water marks.
221 low_water_mark_ = high_water_mark_ = t;
222 return t;
223}
224
[email protected]d202a7c2012-01-04 07:53:47225NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57226 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19227 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37228 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20229 pending_entry_(NULL),
avi45a72532015-04-07 21:01:45230 failed_pending_entry_id_(0),
231 failed_pending_entry_should_replace_(false),
[email protected]765b35502008-08-21 00:51:20232 last_committed_entry_index_(-1),
233 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47234 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57235 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29236 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22237 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57238 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09239 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28240 in_navigate_to_pending_entry_(false),
[email protected]c5b88d82012-10-06 17:03:33241 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31242 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]d1581d72013-11-05 19:11:26243 screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37244 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29245}
246
[email protected]d202a7c2012-01-04 07:53:47247NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47248 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29249}
250
[email protected]d202a7c2012-01-04 07:53:47251WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57252 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32253}
254
[email protected]d202a7c2012-01-04 07:53:47255BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55256 return browser_context_;
257}
258
[email protected]d202a7c2012-01-04 07:53:47259void NavigationControllerImpl::SetBrowserContext(
260 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20261 browser_context_ = browser_context;
262}
263
[email protected]d202a7c2012-01-04 07:53:47264void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30265 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36266 RestoreType type,
avif16f85a72015-11-13 18:25:03267 std::vector<scoped_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57268 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55269 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57270 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14271 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57272
[email protected]ce3fa3c2009-04-20 19:55:57273 needs_reload_ = true;
avif16f85a72015-11-13 18:25:03274 entries_.reserve(entries->size());
275 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36276 entries_.push_back(
277 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03278
279 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
280 // cleared out safely.
281 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57282
283 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36284 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57285}
286
[email protected]d202a7c2012-01-04 07:53:47287void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16288 ReloadInternal(check_for_repost, RELOAD);
289}
kinuko1be5023c2015-12-16 02:31:57290void NavigationControllerImpl::ReloadToRefreshContent(bool check_for_repost) {
291 if (base::CommandLine::ForCurrentProcess()->HasSwitch(
292 switches::kEnableNonValidatingReloadOnRefreshContent)) {
toyoshim87840a02016-02-12 04:49:13293 // Cause this reload to behave like NAVIGATION_TYPE_SAME_PAGE (e.g., enter
294 // in the omnibox), so that the main resource is cache-validated but all
295 // other resources use the cache as much as possible. This requires
296 // navigating to the current URL in a new pending entry.
297 // TODO(toyoshim): Introduce a new ReloadType for this behavior if it
298 // becomes the default.
299 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
300
301 // If the last committed entry does not exist, or a repost check dialog is
302 // really needed, use a standard reload instead.
303 if (last_committed &&
304 !(check_for_repost && last_committed->GetHasPostData())) {
305 LoadURL(last_committed->GetURL(), last_committed->GetReferrer(),
306 last_committed->GetTransitionType(),
307 last_committed->extra_headers());
308 return;
309 }
kinuko1be5023c2015-12-16 02:31:57310 }
toyoshim87840a02016-02-12 04:49:13311 ReloadInternal(check_for_repost, RELOAD);
kinuko1be5023c2015-12-16 02:31:57312}
[email protected]d202a7c2012-01-04 07:53:47313void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16314 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
315}
[email protected]7c16976c2012-08-04 02:38:23316void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
317 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
318}
megjablond5ac7d52015-10-22 23:56:12319void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
320 ReloadInternal(check_for_repost, RELOAD_DISABLE_LOFI_MODE);
321}
[email protected]1ccb3568d2010-02-19 10:51:16322
[email protected]d202a7c2012-01-04 07:53:47323void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
324 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36325 if (transient_entry_index_ != -1) {
326 // If an interstitial is showing, treat a reload as a navigation to the
327 // transient entry's URL.
creis3da03872015-02-20 21:12:32328 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27329 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36330 return;
[email protected]6286a3792013-10-09 04:03:27331 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21332 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35333 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27334 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47335 return;
[email protected]669e0ba2012-08-30 23:57:36336 }
[email protected]cbab76d2008-10-13 22:42:47337
[email protected]59167c22013-06-03 18:07:32338 NavigationEntryImpl* entry = NULL;
339 int current_index = -1;
340
341 // If we are reloading the initial navigation, just use the current
342 // pending entry. Otherwise look up the current entry.
343 if (IsInitialNavigation() && pending_entry_) {
344 entry = pending_entry_;
345 // The pending entry might be in entries_ (e.g., after a Clone), so we
346 // should also update the current_index.
347 current_index = pending_entry_index_;
348 } else {
349 DiscardNonCommittedEntriesInternal();
350 current_index = GetCurrentEntryIndex();
351 if (current_index != -1) {
creis3da03872015-02-20 21:12:32352 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32353 }
[email protected]979a4bc2013-04-24 01:27:15354 }
[email protected]241db352013-04-22 18:04:05355
[email protected]59167c22013-06-03 18:07:32356 // If we are no where, then we can't reload. TODO(darin): We should add a
357 // CanReload method.
358 if (!entry)
359 return;
360
[email protected]cdcb1dee2012-01-04 00:46:20361 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32362 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30363 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07364 // they really want to do this. If they do, the dialog will call us back
365 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57366 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02367
[email protected]106a0812010-03-18 00:15:12368 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57369 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29370 } else {
[email protected]59167c22013-06-03 18:07:32371 if (!IsInitialNavigation())
372 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26373
[email protected]bcd904482012-02-01 01:54:22374 // If we are reloading an entry that no longer belongs to the current
375 // site instance (for example, refreshing a page for just installed app),
376 // the reload must happen in a new process.
377 // The new entry must have a new page_id and site instance, so it behaves
378 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30379 // Tabs that are discarded due to low memory conditions may not have a site
380 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32381 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21382 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10383 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
384 site_instance->GetProcess()->IsForGuestsOnly();
385 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30386 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22387 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46388 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22389 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
390 CreateNavigationEntry(
391 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37392 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26393
[email protected]11535962012-02-09 21:02:10394 // Mark the reload type as NO_RELOAD, so navigation will not be considered
395 // a reload in the renderer.
396 reload_type = NavigationController::NO_RELOAD;
397
[email protected]e2caa032012-11-15 23:29:18398 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22399 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46400 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22401 } else {
[email protected]59167c22013-06-03 18:07:32402 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22403 pending_entry_index_ = current_index;
404
405 // The title of the page being reloaded might have been removed in the
406 // meanwhile, so we need to revert to the default title upon reload and
407 // invalidate the previously cached title (SetTitle will do both).
408 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26409 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22410
Sylvain Defresnec6ccc77d2014-09-19 10:19:35411 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22412 }
413
[email protected]1ccb3568d2010-02-19 10:51:16414 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29415 }
416}
417
[email protected]d202a7c2012-01-04 07:53:47418void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12419 DCHECK(pending_reload_ != NO_RELOAD);
420 pending_reload_ = NO_RELOAD;
421}
422
[email protected]d202a7c2012-01-04 07:53:47423void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12424 if (pending_reload_ == NO_RELOAD) {
425 NOTREACHED();
426 } else {
427 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02428 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12429 }
430}
431
[email protected]cd2e15742013-03-08 04:08:31432bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09433 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11434}
435
creis10a4ab72015-10-13 17:22:40436bool NavigationControllerImpl::IsInitialBlankNavigation() const {
437 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
438 // we'll need to check for entry count 1 and restore_type RESTORE_NONE (to
439 // exclude the cloned tab case).
440 return IsInitialNavigation() && GetEntryCount() == 0;
441}
442
[email protected]d202a7c2012-01-04 07:53:47443NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
avib7348942015-12-25 20:57:10444 SiteInstance* instance,
445 int32_t page_id) const {
[email protected]7f0005a2009-04-15 03:25:11446 int index = GetEntryIndexWithPageID(instance, page_id);
avif16f85a72015-11-13 18:25:03447 return (index != -1) ? entries_[index].get() : nullptr;
[email protected]765b35502008-08-21 00:51:20448}
449
avi254eff02015-07-01 08:27:58450NavigationEntryImpl*
451NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
452 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03453 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58454}
455
avi25764702015-06-23 15:43:37456void NavigationControllerImpl::LoadEntry(
457 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20458 // When navigating to a new page, we don't know for sure if we will actually
459 // end up leaving the current page. The new page load could for example
460 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36461 SetPendingEntry(std::move(entry));
[email protected]59167c22013-06-03 18:07:32462 NavigateToPendingEntry(NO_RELOAD);
463}
464
avi25764702015-06-23 15:43:37465void NavigationControllerImpl::SetPendingEntry(
466 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47467 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37468 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21469 NotificationService::current()->Notify(
470 NOTIFICATION_NAV_ENTRY_PENDING,
471 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37472 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20473}
474
creis3da03872015-02-20 21:12:32475NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47476 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03477 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47478 if (pending_entry_)
479 return pending_entry_;
480 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20481}
482
creis3da03872015-02-20 21:12:32483NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19484 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03485 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32486 // The pending entry is safe to return for new (non-history), browser-
487 // initiated navigations. Most renderer-initiated navigations should not
488 // show the pending entry, to prevent URL spoof attacks.
489 //
490 // We make an exception for renderer-initiated navigations in new tabs, as
491 // long as no other page has tried to access the initial empty document in
492 // the new tab. If another page modifies this blank page, a URL spoof is
493 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32494 bool safe_to_show_pending =
495 pending_entry_ &&
496 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09497 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32498 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46499 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32500
501 // Also allow showing the pending entry for history navigations in a new tab,
502 // such as Ctrl+Back. In this case, no existing page is visible and no one
503 // can script the new tab before it commits.
504 if (!safe_to_show_pending &&
505 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09506 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32507 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34508 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32509 safe_to_show_pending = true;
510
511 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19512 return pending_entry_;
513 return GetLastCommittedEntry();
514}
515
[email protected]d202a7c2012-01-04 07:53:47516int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47517 if (transient_entry_index_ != -1)
518 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20519 if (pending_entry_index_ != -1)
520 return pending_entry_index_;
521 return last_committed_entry_index_;
522}
523
creis3da03872015-02-20 21:12:32524NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20525 if (last_committed_entry_index_ == -1)
526 return NULL;
avif16f85a72015-11-13 18:25:03527 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20528}
529
[email protected]d202a7c2012-01-04 07:53:47530bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57531 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25532 bool is_viewable_mime_type =
533 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59534 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27535 NavigationEntry* visible_entry = GetVisibleEntry();
536 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57537 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16538}
539
[email protected]d202a7c2012-01-04 07:53:47540int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55541 return last_committed_entry_index_;
542}
543
[email protected]d202a7c2012-01-04 07:53:47544int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25545 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55546 return static_cast<int>(entries_.size());
547}
548
creis3da03872015-02-20 21:12:32549NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25550 int index) const {
avi25764702015-06-23 15:43:37551 if (index < 0 || index >= GetEntryCount())
552 return nullptr;
553
avif16f85a72015-11-13 18:25:03554 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25555}
556
creis3da03872015-02-20 21:12:32557NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25558 int offset) const {
avi057ce1492015-06-29 15:59:47559 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20560}
561
[email protected]9ba14052012-06-22 23:50:03562int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46563 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03564}
565
[email protected]9677a3c2012-12-22 04:18:58566void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10567 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58568}
569
[email protected]1a3f5312013-04-26 21:00:10570void NavigationControllerImpl::SetScreenshotManager(
avi67081d0ae2015-07-27 18:25:46571 scoped_ptr<NavigationEntryScreenshotManager> manager) {
572 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36573 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46574 else
575 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58576}
577
[email protected]d202a7c2012-01-04 07:53:47578bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22579 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20580}
581
[email protected]d202a7c2012-01-04 07:53:47582bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22583 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20584}
585
[email protected]9ba14052012-06-22 23:50:03586bool NavigationControllerImpl::CanGoToOffset(int offset) const {
587 int index = GetIndexForOffset(offset);
588 return index >= 0 && index < GetEntryCount();
589}
590
[email protected]d202a7c2012-01-04 07:53:47591void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20592 if (!CanGoBack()) {
593 NOTREACHED();
594 return;
595 }
596
597 // Base the navigation on where we are now...
598 int current_index = GetCurrentEntryIndex();
599
[email protected]cbab76d2008-10-13 22:42:47600 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20601
602 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25603 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35604 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51605 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35606 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16607 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20608}
609
[email protected]d202a7c2012-01-04 07:53:47610void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20611 if (!CanGoForward()) {
612 NOTREACHED();
613 return;
614 }
615
[email protected]cbab76d2008-10-13 22:42:47616 bool transient = (transient_entry_index_ != -1);
617
[email protected]765b35502008-08-21 00:51:20618 // Base the navigation on where we are now...
619 int current_index = GetCurrentEntryIndex();
620
[email protected]cbab76d2008-10-13 22:42:47621 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20622
[email protected]cbab76d2008-10-13 22:42:47623 pending_entry_index_ = current_index;
624 // If there was a transient entry, we removed it making the current index
625 // the next page.
626 if (!transient)
627 pending_entry_index_++;
628
[email protected]022af742011-12-28 18:37:25629 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35630 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51631 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35632 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16633 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20634}
635
[email protected]d202a7c2012-01-04 07:53:47636void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20637 if (index < 0 || index >= static_cast<int>(entries_.size())) {
638 NOTREACHED();
639 return;
640 }
641
[email protected]cbab76d2008-10-13 22:42:47642 if (transient_entry_index_ != -1) {
643 if (index == transient_entry_index_) {
644 // Nothing to do when navigating to the transient.
645 return;
646 }
647 if (index > transient_entry_index_) {
648 // Removing the transient is goint to shift all entries by 1.
649 index--;
650 }
651 }
652
653 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20654
655 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25656 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35657 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51658 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35659 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16660 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20661}
662
[email protected]d202a7c2012-01-04 07:53:47663void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03664 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20665 return;
666
[email protected]9ba14052012-06-22 23:50:03667 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20668}
669
[email protected]41374f12013-07-24 02:49:28670bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
671 if (index == last_committed_entry_index_ ||
672 index == pending_entry_index_)
673 return false;
[email protected]6a13a6c2011-12-20 21:47:12674
[email protected]43032342011-03-21 14:10:31675 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28676 return true;
[email protected]cbab76d2008-10-13 22:42:47677}
678
[email protected]d202a7c2012-01-04 07:53:47679void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23680 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32681 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31682 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51683 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
684 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32685 }
686}
687
[email protected]d202a7c2012-01-04 07:53:47688void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47689 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21690 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35691 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47692 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47693 LoadURLParams params(url);
694 params.referrer = referrer;
695 params.transition_type = transition;
696 params.extra_headers = extra_headers;
697 LoadURLWithParams(params);
698}
699
700void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43701 TRACE_EVENT1("browser,navigation",
702 "NavigationControllerImpl::LoadURLWithParams",
703 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43704 if (HandleDebugURL(params.url, params.transition_type)) {
705 // If Telemetry is running, allow the URL load to proceed as if it's
706 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49707 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43708 cc::switches::kEnableGpuBenchmarking))
709 return;
710 }
[email protected]8bf1048012012-02-08 01:22:18711
[email protected]cf002332012-08-14 19:17:47712 // Checks based on params.load_type.
713 switch (params.load_type) {
714 case LOAD_TYPE_DEFAULT:
715 break;
716 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e8ca69c2014-05-07 15:31:19717 if (!params.url.SchemeIs(url::kHttpScheme) &&
718 !params.url.SchemeIs(url::kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47719 NOTREACHED() << "Http post load must use http(s) scheme.";
720 return;
721 }
722 break;
723 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26724 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47725 NOTREACHED() << "Data load must use data scheme.";
726 return;
727 }
728 break;
729 default:
730 NOTREACHED();
731 break;
732 };
[email protected]e47ae9472011-10-13 19:48:34733
[email protected]e47ae9472011-10-13 19:48:34734 // The user initiated a load, we don't need to reload anymore.
735 needs_reload_ = false;
736
[email protected]cf002332012-08-14 19:17:47737 bool override = false;
738 switch (params.override_user_agent) {
739 case UA_OVERRIDE_INHERIT:
740 override = ShouldKeepOverride(GetLastCommittedEntry());
741 break;
742 case UA_OVERRIDE_TRUE:
743 override = true;
744 break;
745 case UA_OVERRIDE_FALSE:
746 override = false;
747 break;
748 default:
749 NOTREACHED();
750 break;
[email protected]d1ef81d2012-07-24 11:39:36751 }
752
avi25764702015-06-23 15:43:37753 scoped_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30754
755 // For subframes, create a pending entry with a corresponding frame entry.
756 int frame_tree_node_id = params.frame_tree_node_id;
757 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
758 FrameTreeNode* node =
759 params.frame_tree_node_id != -1
760 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
761 : delegate_->GetFrameTree()->FindByName(params.frame_name);
762 if (node && !node->IsMainFrame()) {
763 DCHECK(GetLastCommittedEntry());
764
765 // Update the FTN ID to use below in case we found a named frame.
766 frame_tree_node_id = node->frame_tree_node_id();
767
768 // In --site-per-process, create an identical NavigationEntry with a
769 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08770 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30771 entry = GetLastCommittedEntry()->Clone();
772 entry->SetPageID(-1);
creis6d752c32015-11-10 01:59:43773 entry->AddOrUpdateFrameEntry(node, "", -1, -1, nullptr, params.url,
creis4e2ecb72015-06-20 00:46:30774 params.referrer, PageState());
775 }
776 }
creis6a93a812015-04-24 23:13:17777 }
creis4e2ecb72015-06-20 00:46:30778
779 // Otherwise, create a pending entry for the main frame.
780 if (!entry) {
781 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
782 params.url, params.referrer, params.transition_type,
783 params.is_renderer_initiated, params.extra_headers, browser_context_));
784 }
785 // Set the FTN ID (only used in non-site-per-process, for tests).
786 entry->set_frame_tree_node_id(frame_tree_node_id);
lfg9ef7d2d2014-12-15 22:32:30787 entry->set_source_site_instance(
788 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
[email protected]f8872902013-10-30 03:18:57789 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21790 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39791 // Don't allow an entry replacement if there is no entry to replace.
792 // http://crbug.com/457149
793 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18794 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13795 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47796 entry->SetIsOverridingUserAgent(override);
797 entry->set_transferred_global_request_id(
798 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36799
clamy8451aa62015-01-23 16:56:08800#if defined(OS_ANDROID)
801 if (params.intent_received_timestamp > 0) {
802 entry->set_intent_received_timestamp(
803 base::TimeTicks() +
804 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
805 }
qinmin976d4d92015-08-07 18:32:39806 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08807#endif
808
[email protected]cf002332012-08-14 19:17:47809 switch (params.load_type) {
810 case LOAD_TYPE_DEFAULT:
811 break;
812 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
813 entry->SetHasPostData(true);
814 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46815 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47816 break;
817 case LOAD_TYPE_DATA:
818 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
819 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03820#if defined(OS_ANDROID)
821 entry->SetDataURLAsString(params.data_url_as_string);
822#endif
[email protected]951a64832012-10-11 16:26:37823 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47824 break;
825 default:
826 NOTREACHED();
827 break;
828 };
[email protected]132e281a2012-07-31 18:32:44829
dcheng36b6aec92015-12-26 06:16:36830 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44831}
832
[email protected]d202a7c2012-01-04 07:53:47833bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32834 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22835 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21836 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31837 is_initial_navigation_ = false;
838
[email protected]0e8db942008-09-24 21:21:48839 // Save the previous state before we clobber it.
840 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51841 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55842 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48843 } else {
844 details->previous_url = GURL();
845 details->previous_entry_index = -1;
846 }
[email protected]ecd9d8702008-08-28 22:10:17847
fdegans9caf66a2015-07-30 21:10:42848 // If there is a pending entry at this point, it should have a SiteInstance,
849 // except for restored entries.
850 DCHECK(pending_entry_index_ == -1 ||
851 pending_entry_->site_instance() ||
852 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
853 if (pending_entry_ &&
854 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
855 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]e9ba4472008-09-14 15:42:43856
[email protected]bcd904482012-02-01 01:54:22857 // If we are doing a cross-site reload, we need to replace the existing
858 // navigation entry, not add another entry to the history. This has the side
avi45a72532015-04-07 21:01:45859 // effect of removing forward browsing history, if such existed. Or if we are
860 // doing a cross-site redirect navigation, we will do a similar thing.
861 //
862 // If this is an error load, we may have already removed the pending entry
863 // when we got the notice of the load failure. If so, look at the copy of the
864 // pending parameters that were saved.
avi45a72532015-04-07 21:01:45865 if (params.url_is_unreachable && failed_pending_entry_id_ != 0) {
866 details->did_replace_entry = failed_pending_entry_should_replace_;
867 } else {
868 details->did_replace_entry = pending_entry_ &&
869 pending_entry_->should_replace_entry();
870 }
[email protected]bcd904482012-02-01 01:54:22871
[email protected]e9ba4472008-09-14 15:42:43872 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43873 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20874
[email protected]b9d4dfdc2013-08-08 00:25:12875 // is_in_page must be computed before the entry gets committed.
avidb7d1d22015-06-08 21:21:50876 details->is_in_page = IsURLInPageNavigation(
[email protected]5cfbddc2014-06-23 23:52:23877 params.url, params.was_within_same_page, rfh);
[email protected]b9d4dfdc2013-08-08 00:25:12878
[email protected]0e8db942008-09-24 21:21:48879 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21880 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43881 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43882 break;
[email protected]8ff00d72012-10-23 19:12:21883 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36884 details->did_replace_entry = details->is_in_page;
[email protected]27dd82fd2014-03-03 22:11:43885 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43886 break;
[email protected]8ff00d72012-10-23 19:12:21887 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43888 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43889 break;
[email protected]8ff00d72012-10-23 19:12:21890 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43891 RendererDidNavigateNewSubframe(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43892 break;
[email protected]8ff00d72012-10-23 19:12:21893 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43894 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43895 return false;
896 break;
[email protected]8ff00d72012-10-23 19:12:21897 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49898 // If a pending navigation was in progress, this canceled it. We should
899 // discard it and make sure it is removed from the URL bar. After that,
900 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43901 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49902 if (pending_entry_) {
903 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57904 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49905 }
[email protected]e9ba4472008-09-14 15:42:43906 return false;
907 default:
908 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20909 }
910
[email protected]688aa65c62012-09-28 04:32:22911 // At this point, we know that the navigation has just completed, so
912 // record the time.
913 //
914 // TODO(akalin): Use "sane time" as described in
915 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33916 base::Time timestamp =
917 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
918 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22919 << timestamp.ToInternalValue();
920
[email protected]f233e4232013-02-23 00:55:14921 // We should not have a pending entry anymore. Clear it again in case any
922 // error cases above forgot to do so.
923 DiscardNonCommittedEntriesInternal();
924
[email protected]e9ba4472008-09-14 15:42:43925 // All committed entries should have nonempty content state so WebKit doesn't
926 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04927 DCHECK(params.page_state.IsValid());
creis3da03872015-02-20 21:12:32928 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22929 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44930 active_entry->SetHttpStatusCode(params.http_status_code);
nickd30fd962015-07-27 21:51:08931 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30932 // Update the frame-specific PageState.
933 FrameNavigationEntry* frame_entry =
934 active_entry->GetFrameEntry(rfh->frame_tree_node());
creise062d542015-08-25 02:01:55935 // We may not find a frame_entry in some cases; ignore the PageState if so.
936 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
937 if (frame_entry)
938 frame_entry->set_page_state(params.page_state);
creis4e2ecb72015-06-20 00:46:30939 } else {
940 active_entry->SetPageState(params.page_state);
941 }
[email protected]c1982ff2014-04-23 03:37:21942 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44943
[email protected]d6def3d2014-05-19 18:55:32944 // Use histogram to track memory impact of redirect chain because it's now
945 // not cleared for committed entries.
946 size_t redirect_chain_size = 0;
947 for (size_t i = 0; i < params.redirects.size(); ++i) {
948 redirect_chain_size += params.redirects[i].spec().length();
949 }
950 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
951
[email protected]97d8f0d2013-10-29 16:49:21952 // Once it is committed, we no longer need to track several pieces of state on
953 // the entry.
954 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13955
[email protected]49bd30e62011-03-22 20:12:59956 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22957 // TODO(creis): This check won't pass for subframes until we create entries
958 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00959 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42960 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59961
[email protected]b26de072013-02-23 02:33:44962 // Remember the bindings the renderer process has at this point, so that
963 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32964 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44965
[email protected]e9ba4472008-09-14 15:42:43966 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00967 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00968 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31969 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53970
971 // Deserialize the security info and kill the renderer if
972 // deserialization fails. The navigation will continue with default
973 // SSLStatus values.
974 if (!DeserializeSecurityInfo(params.security_info, &details->ssl_status)) {
975 bad_message::ReceivedBadMessage(
976 rfh->GetProcess(),
977 bad_message::WC_RENDERER_DID_NAVIGATE_BAD_SECURITY_INFO);
978 }
979
[email protected]93f230e02011-06-01 14:40:00980 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29981
creis03b48002015-11-04 00:54:56982 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
983 // one knows the latest NavigationEntry it is showing (whether it has
984 // committed anything in this navigation or not). This allows things like
985 // state and title updates from RenderFrames to apply to the latest relevant
986 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:38987 int nav_entry_id = active_entry->GetUniqueID();
988 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
989 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:43990 return true;
initial.commit09911bf2008-07-26 23:55:29991}
992
[email protected]8ff00d72012-10-23 19:12:21993NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32994 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22995 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38996 if (params.did_create_new_entry) {
997 // A new entry. We may or may not have a pending entry for the page, and
998 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00999 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381000 return NAVIGATION_TYPE_NEW_PAGE;
1001 }
1002
1003 // When this is a new subframe navigation, we should have a committed page
1004 // in which it's a subframe. This may not be the case when an iframe is
1005 // navigated on a popup navigated to about:blank (the iframe would be
1006 // written into the popup by script on the main page). For these cases,
1007 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:231008 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:381009 return NAVIGATION_TYPE_NAV_IGNORE;
1010
1011 // Valid subframe navigation.
1012 return NAVIGATION_TYPE_NEW_SUBFRAME;
1013 }
1014
avi7c6f35e2015-05-08 17:52:381015 // We only clear the session history when navigating to a new page.
1016 DCHECK(!params.history_list_was_cleared);
1017
avi39c1edd32015-06-04 20:06:001018 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381019 // All manual subframes would be did_create_new_entry and handled above, so
1020 // we know this is auto.
1021 if (GetLastCommittedEntry()) {
1022 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1023 } else {
1024 // We ignore subframes created in non-committed pages; we'd appreciate if
1025 // people stopped doing that.
1026 return NAVIGATION_TYPE_NAV_IGNORE;
1027 }
1028 }
1029
1030 if (params.nav_entry_id == 0) {
1031 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1032 // create a new page.
1033
1034 // Just like above in the did_create_new_entry case, it's possible to
1035 // scribble onto an uncommitted page. Again, there isn't any navigation
1036 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231037 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231038 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381039 return NAVIGATION_TYPE_NAV_IGNORE;
1040
avi259dc792015-07-07 04:42:361041 // This is history.replaceState(), history.reload(), or a client-side
1042 // redirect.
1043 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381044 }
1045
1046 if (pending_entry_ && pending_entry_index_ == -1 &&
1047 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1048 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421049 // didn't do a new navigation (params.did_create_new_entry). First check to
1050 // make sure Blink didn't treat a new cross-process navigation as inert, and
1051 // thus set params.did_create_new_entry to false. In that case, we must
1052 // treat it as NEW since the SiteInstance doesn't match the entry.
1053 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
1054 return NAVIGATION_TYPE_NEW_PAGE;
1055
1056 // Otherwise, this happens when you press enter in the URL bar to reload. We
1057 // will create a pending entry, but Blink will convert it to a reload since
1058 // it's the same page and not create a new entry for it (the user doesn't
1059 // want to have a new back/forward entry when they do this). Therefore we
1060 // want to just ignore the pending entry and go back to where we were (the
1061 // "existing entry").
1062 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381063 return NAVIGATION_TYPE_SAME_PAGE;
1064 }
1065
1066 if (params.intended_as_new_entry) {
1067 // This was intended to be a navigation to a new entry but the pending entry
1068 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1069 // may not have a pending entry.
1070 return NAVIGATION_TYPE_EXISTING_PAGE;
1071 }
1072
1073 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1074 params.nav_entry_id == failed_pending_entry_id_) {
1075 // If the renderer was going to a new pending entry that got cleared because
1076 // of an error, this is the case of the user trying to retry a failed load
1077 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1078 // have a pending entry.
1079 return NAVIGATION_TYPE_EXISTING_PAGE;
1080 }
1081
1082 // Now we know that the notification is for an existing page. Find that entry.
1083 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1084 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441085 // The renderer has committed a navigation to an entry that no longer
1086 // exists. Because the renderer is showing that page, resurrect that entry.
1087 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381088 }
1089
avi7c6f35e2015-05-08 17:52:381090 // Since we weeded out "new" navigations above, we know this is an existing
1091 // (back/forward) navigation.
1092 return NAVIGATION_TYPE_EXISTING_PAGE;
1093}
1094
[email protected]d202a7c2012-01-04 07:53:471095void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321096 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221097 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221098 bool replace_entry) {
avi25764702015-06-23 15:43:371099 scoped_ptr<NavigationEntryImpl> new_entry;
[email protected]f1eb87a2011-05-06 17:49:411100 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:341101 // Only make a copy of the pending entry if it is appropriate for the new page
1102 // that was just loaded. We verify this at a coarse grain by checking that
avi5cad4912015-06-19 05:25:441103 // the SiteInstance hasn't been assigned to something else, and by making sure
1104 // that the pending entry was intended as a new entry (rather than being a
1105 // history navigation that was interrupted by an unrelated, renderer-initiated
1106 // navigation).
1107 if (pending_entry_ && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341108 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431109 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351110 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431111
[email protected]f1eb87a2011-05-06 17:49:411112 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431113 } else {
avi25764702015-06-23 15:43:371114 new_entry = make_scoped_ptr(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241115
1116 // Find out whether the new entry needs to update its virtual URL on URL
1117 // change and set up the entry accordingly. This is needed to correctly
1118 // update the virtual URL when replaceState is called after a pushState.
1119 GURL url = params.url;
1120 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431121 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1122 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241123 new_entry->set_update_virtual_url_with_url(needs_update);
1124
[email protected]f1eb87a2011-05-06 17:49:411125 // When navigating to a new page, give the browser URL handler a chance to
1126 // update the virtual URL based on the new URL. For example, this is needed
1127 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1128 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241129 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431130 }
1131
wjmaclean7431bb22015-02-19 14:53:431132 // Don't use the page type from the pending entry. Some interstitial page
1133 // may have set the type to interstitial. Once we commit, however, the page
1134 // type must always be normal or error.
1135 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1136 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041137 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411138 if (update_virtual_url)
avi25764702015-06-23 15:43:371139 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251140 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511141 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251142 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331143 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431144 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511145 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051146 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231147 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221148 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431149
creis8b5cd4c2015-06-19 00:11:081150 // Update the FrameNavigationEntry for new main frame commits.
1151 FrameNavigationEntry* frame_entry =
1152 new_entry->GetFrameEntry(rfh->frame_tree_node());
creis6d752c32015-11-10 01:59:431153 frame_entry->set_frame_unique_name(params.frame_unique_name);
creis8b5cd4c2015-06-19 00:11:081154 frame_entry->set_item_sequence_number(params.item_sequence_number);
1155 frame_entry->set_document_sequence_number(params.document_sequence_number);
1156
[email protected]ff64b3e2014-05-31 04:07:331157 // history.pushState() is classified as a navigation to a new page, but
1158 // sets was_within_same_page to true. In this case, we already have the
[email protected]3a868f212014-08-09 10:41:191159 // title and favicon available, so set them immediately.
1160 if (params.was_within_same_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331161 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191162 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1163 }
[email protected]ff64b3e2014-05-31 04:07:331164
[email protected]60d6cca2013-04-30 08:47:131165 DCHECK(!params.history_list_was_cleared || !replace_entry);
1166 // The browser requested to clear the session history when it initiated the
1167 // navigation. Now we know that the renderer has updated its state accordingly
1168 // and it is safe to also clear the browser side history.
1169 if (params.history_list_was_cleared) {
1170 DiscardNonCommittedEntriesInternal();
1171 entries_.clear();
1172 last_committed_entry_index_ = -1;
1173 }
1174
dcheng36b6aec92015-12-26 06:16:361175 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431176}
1177
[email protected]d202a7c2012-01-04 07:53:471178void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321179 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221180 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431181 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001182 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431183
avicbdc4c12015-07-01 16:07:111184 NavigationEntryImpl* entry;
1185 if (params.intended_as_new_entry) {
1186 // This was intended as a new entry but the pending entry was lost in the
1187 // meanwhile and no new page was created. We are stuck at the last committed
1188 // entry.
1189 entry = GetLastCommittedEntry();
1190 } else if (params.nav_entry_id) {
1191 // This is a browser-initiated navigation (back/forward/reload).
1192 entry = GetEntryWithUniqueID(params.nav_entry_id);
1193 } else {
1194 // This is renderer-initiated. The only kinds of renderer-initated
1195 // navigations that are EXISTING_PAGE are reloads and location.replace,
1196 // which land us at the last committed entry.
1197 entry = GetLastCommittedEntry();
1198 }
1199 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431200
[email protected]5ccd4dc2012-10-24 02:28:141201 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431202 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1203 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041204 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201205 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321206 if (entry->update_virtual_url_with_url())
1207 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141208
1209 // The redirected to page should not inherit the favicon from the previous
1210 // page.
Sylvain Defresnec6ccc77d2014-09-19 10:19:351211 if (ui::PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481212 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141213
1214 // The site instance will normally be the same except during session restore,
1215 // when no site instance will be assigned.
fdegans9caf66a2015-07-30 21:10:421216 DCHECK(entry->site_instance() == nullptr ||
[email protected]27dd82fd2014-03-03 22:11:431217 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331218 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431219 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431220
[email protected]36fc0392011-12-25 03:59:511221 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051222 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411223
[email protected]e9ba4472008-09-14 15:42:431224 // The entry we found in the list might be pending if the user hit
1225 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591226 // list, we can just discard the pending pointer). We should also discard the
1227 // pending entry if it corresponds to a different navigation, since that one
1228 // is now likely canceled. If it is not canceled, we will treat it as a new
1229 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431230 //
1231 // Note that we need to use the "internal" version since we don't want to
1232 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491233 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391234
[email protected]80858db52009-10-15 00:35:181235 // If a transient entry was removed, the indices might have changed, so we
1236 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111237 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431238}
1239
[email protected]d202a7c2012-01-04 07:53:471240void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321241 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221242 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291243 // This classification says that we have a pending entry that's the same as
1244 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091245 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291246 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431247
creis77c9aa32015-09-25 19:59:421248 // If we classified this correctly, the SiteInstance should not have changed.
1249 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1250
[email protected]e9ba4472008-09-14 15:42:431251 // We assign the entry's unique ID to be that of the new one. Since this is
1252 // always the result of a user action, we want to dismiss infobars, etc. like
1253 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421254 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511255 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431256
[email protected]a0e69262009-06-03 19:08:481257 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431258 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1259 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321260 if (existing_entry->update_virtual_url_with_url())
1261 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041262 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201263 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481264
[email protected]b77686522013-12-11 20:34:191265 // The page may have been requested with a different HTTP method.
1266 existing_entry->SetHasPostData(params.is_post);
1267 existing_entry->SetPostID(params.post_id);
1268
[email protected]cbab76d2008-10-13 22:42:471269 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431270}
1271
[email protected]d202a7c2012-01-04 07:53:471272void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321273 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221274 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi25f5f9e2015-07-17 20:08:261275 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1276 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111277
[email protected]e9ba4472008-09-14 15:42:431278 // Manual subframe navigations just get the current entry cloned so the user
1279 // can go back or forward to it. The actual subframe information will be
1280 // stored in the page state for each of those entries. This happens out of
1281 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091282 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1283 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381284
avi25764702015-06-23 15:43:371285 scoped_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081286 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis96fc55082015-06-13 06:42:381287 // Make sure new_entry takes ownership of frame_entry in a scoped_refptr.
1288 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
creis6d752c32015-11-10 01:59:431289 rfh->frame_tree_node()->frame_tree_node_id(), params.frame_unique_name,
creis8b5cd4c2015-06-19 00:11:081290 params.item_sequence_number, params.document_sequence_number,
1291 rfh->GetSiteInstance(), params.url, params.referrer);
creis96fc55082015-06-13 06:42:381292 new_entry = GetLastCommittedEntry()->CloneAndReplace(rfh->frame_tree_node(),
1293 frame_entry);
creise062d542015-08-25 02:01:551294
1295 // TODO(creis): Make sure the last committed entry always has the subframe
1296 // entry to replace, and CHECK(frame_entry->HasOneRef). For now, we might
1297 // not find the entry to replace, and new_entry will be deleted when it goes
1298 // out of scope. See https://crbug.com/522193.
creis96fc55082015-06-13 06:42:381299 } else {
1300 new_entry = GetLastCommittedEntry()->Clone();
1301 }
1302
[email protected]36fc0392011-12-25 03:59:511303 new_entry->SetPageID(params.page_id);
dcheng36b6aec92015-12-26 06:16:361304 InsertOrReplaceEntry(std::move(new_entry), false);
[email protected]e9ba4472008-09-14 15:42:431305}
1306
[email protected]d202a7c2012-01-04 07:53:471307bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321308 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221309 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291310 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1311 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1312
[email protected]e9ba4472008-09-14 15:42:431313 // We're guaranteed to have a previously committed entry, and we now need to
1314 // handle navigation inside of a subframe in it without creating a new entry.
1315 DCHECK(GetLastCommittedEntry());
1316
avi98405c22015-05-21 20:47:061317 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511318 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
caitkp420384c62015-05-28 14:34:511319
creis3cdc3b02015-05-29 23:00:471320 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1321 // a history auto" navigation. Update the last committed index accordingly.
1322 // If we don't recognize the |nav_entry_id|, it might be either a pending
1323 // entry for a transfer or a recently pruned entry. We'll handle it below.
1324 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061325 // Make sure that a subframe commit isn't changing the main frame's
1326 // origin. Otherwise the renderer process may be confused, leading to a
1327 // URL spoof. We can't check the path since that may change
1328 // (https://crbug.com/373041).
1329 if (GetLastCommittedEntry()->GetURL().GetOrigin() !=
1330 GetEntryAtIndex(entry_index)->GetURL().GetOrigin()) {
1331 // TODO(creis): This is unexpectedly being encountered in practice. If
1332 // you encounter this in practice, please post details to
1333 // https://crbug.com/486916. Once that's resolved, we'll change this to
1334 // kill the renderer process with bad_message::NC_AUTO_SUBFRAME.
1335 NOTREACHED() << "Unexpected main frame origin change on AUTO_SUBFRAME.";
1336 }
creis3cdc3b02015-05-29 23:00:471337
1338 // TODO(creis): Update the FrameNavigationEntry in --site-per-process.
avi98405c22015-05-21 20:47:061339 last_committed_entry_index_ = entry_index;
1340 DiscardNonCommittedEntriesInternal();
1341 return true;
1342 }
[email protected]e9ba4472008-09-14 15:42:431343 }
[email protected]f233e4232013-02-23 00:55:141344
nickd30fd962015-07-27 21:51:081345 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121346 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1347 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121348 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081349 last_committed->AddOrUpdateFrameEntry(
creis6d752c32015-11-10 01:59:431350 rfh->frame_tree_node(), params.frame_unique_name,
1351 params.item_sequence_number, params.document_sequence_number,
1352 rfh->GetSiteInstance(), params.url, params.referrer, params.page_state);
creis3cdc3b02015-05-29 23:00:471353
1354 // Cross-process subframe navigations may leave a pending entry around.
creisefbbbb52015-06-01 19:28:541355 // Clear it if it's actually for the subframe.
creis3cdc3b02015-05-29 23:00:471356 // TODO(creis): Don't use pending entries for subframe navigations.
creisefbbbb52015-06-01 19:28:541357 // See https://crbug.com/495161.
1358 if (pending_entry_ &&
1359 pending_entry_->frame_tree_node_id() ==
1360 rfh->frame_tree_node()->frame_tree_node_id()) {
1361 DiscardPendingEntry(false);
1362 }
creis625a0c7d2015-03-24 23:17:121363 }
1364
[email protected]f233e4232013-02-23 00:55:141365 // We do not need to discard the pending entry in this case, since we will
1366 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431367 return false;
1368}
1369
[email protected]d202a7c2012-01-04 07:53:471370int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231371 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031372 for (size_t i = 0; i < entries_.size(); ++i) {
1373 if (entries_[i].get() == entry)
1374 return i;
1375 }
1376 return -1;
[email protected]765b35502008-08-21 00:51:201377}
1378
avidb7d1d22015-06-08 21:21:501379// There are two general cases where a navigation is "in page":
1380// 1. A fragment navigation, in which the url is kept the same except for the
1381// reference fragment.
1382// 2. A history API navigation (pushState and replaceState). This case is
1383// always in-page, but the urls are not guaranteed to match excluding the
1384// fragment. The relevant spec allows pushState/replaceState to any URL on
1385// the same origin.
1386// However, due to reloads, even identical urls are *not* guaranteed to be
1387// in-page navigations, we have to trust the renderer almost entirely.
1388// The one thing we do know is that cross-origin navigations will *never* be
1389// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1390// and assume the renderer is malicious if a cross-origin navigation claims to
1391// be in-page.
[email protected]ce760d742012-08-30 22:31:101392bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121393 const GURL& url,
1394 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231395 RenderFrameHost* rfh) const {
avidb7d1d22015-06-08 21:21:501396 GURL last_committed_url;
1397 if (rfh->GetParent()) {
1398 last_committed_url = rfh->GetLastCommittedURL();
1399 } else {
1400 NavigationEntry* last_committed = GetLastCommittedEntry();
1401 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1402 // might Blink say that a navigation is in-page yet there be no last-
1403 // committed entry?
1404 if (!last_committed)
1405 return false;
1406 last_committed_url = last_committed->GetURL();
1407 }
1408
1409 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creisdc004e02015-11-20 21:28:471410 const url::Origin& committed_origin = static_cast<RenderFrameHostImpl*>(rfh)
1411 ->frame_tree_node()
1412 ->current_origin();
avidb7d1d22015-06-08 21:21:501413 bool is_same_origin = last_committed_url.is_empty() ||
1414 // TODO(japhet): We should only permit navigations
1415 // originating from about:blank to be in-page if the
1416 // about:blank is the first document that frame loaded.
1417 // We don't have sufficient information to identify
1418 // that case at the moment, so always allow about:blank
1419 // for now.
1420 last_committed_url == GURL(url::kAboutBlankURL) ||
1421 last_committed_url.GetOrigin() == url.GetOrigin() ||
1422 !prefs.web_security_enabled ||
1423 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471424 committed_origin.scheme() == url::kFileScheme);
avidb7d1d22015-06-08 21:21:501425 if (!is_same_origin && renderer_says_in_page) {
1426 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1427 bad_message::NC_IN_PAGE_NAVIGATION);
1428 }
1429 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431430}
1431
[email protected]d202a7c2012-01-04 07:53:471432void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501433 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471434 const NavigationControllerImpl& source =
1435 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571436 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551437 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571438
[email protected]a26023822011-12-29 00:23:551439 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571440 return; // Nothing new to do.
1441
1442 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551443 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571444
[email protected]fdac6ade2013-07-20 01:06:301445 for (SessionStorageNamespaceMap::const_iterator it =
1446 source.session_storage_namespace_map_.begin();
1447 it != source.session_storage_namespace_map_.end();
1448 ++it) {
1449 SessionStorageNamespaceImpl* source_namespace =
1450 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1451 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1452 }
[email protected]4e6419c2010-01-15 04:50:341453
[email protected]2ca1ea662012-10-04 02:26:361454 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571455
1456 // Copy the max page id map from the old tab to the new tab. This ensures
1457 // that new and existing navigations in the tab's current SiteInstances
1458 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571459 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571460}
1461
[email protected]d202a7c2012-01-04 07:53:471462void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571463 NavigationController* temp,
1464 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161465 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011466 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161467
[email protected]d202a7c2012-01-04 07:53:471468 NavigationControllerImpl* source =
1469 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251470
avi2b177592014-12-10 02:08:021471 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011472 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251473
[email protected]474f8512013-05-31 22:31:161474 // We now have one entry, possibly with a new pending entry. Ensure that
1475 // adding the entries from source won't put us over the limit.
1476 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571477 if (!replace_entry)
1478 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251479
[email protected]47e020a2010-10-15 14:43:371480 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021481 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161482 // since it has not committed in source.
1483 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251484 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551485 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251486 else
1487 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571488
1489 // Ignore the source's current entry if merging with replacement.
1490 // TODO(davidben): This should preserve entries forward of the current
1491 // too. http://crbug.com/317872
1492 if (replace_entry && max_source_index > 0)
1493 max_source_index--;
1494
[email protected]47e020a2010-10-15 14:43:371495 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251496
1497 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551498 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141499
avi2b177592014-12-10 02:08:021500 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1501 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571502
avi2b177592014-12-10 02:08:021503 // Copy the max page id map from the old tab to the new tab. This ensures that
1504 // new and existing navigations in the tab's current SiteInstances are
1505 // identified properly.
creis3da03872015-02-20 21:12:321506 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avib7348942015-12-25 20:57:101507 int32_t site_max_page_id =
avi2b177592014-12-10 02:08:021508 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571509 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021510 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1511 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421512 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251513}
1514
[email protected]79368982013-11-13 01:11:011515bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161516 // If there is no last committed entry, we cannot prune. Even if there is a
1517 // pending entry, it may not commit, leaving this WebContents blank, despite
1518 // possibly giving it new entries via CopyStateFromAndPrune.
1519 if (last_committed_entry_index_ == -1)
1520 return false;
[email protected]9350602e2013-02-26 23:27:441521
[email protected]474f8512013-05-31 22:31:161522 // We cannot prune if there is a pending entry at an existing entry index.
1523 // It may not commit, so we have to keep the last committed entry, and thus
1524 // there is no sensible place to keep the pending entry. It is ok to have
1525 // a new pending entry, which can optionally commit as a new navigation.
1526 if (pending_entry_index_ != -1)
1527 return false;
1528
1529 // We should not prune if we are currently showing a transient entry.
1530 if (transient_entry_index_ != -1)
1531 return false;
1532
1533 return true;
1534}
1535
[email protected]79368982013-11-13 01:11:011536void NavigationControllerImpl::PruneAllButLastCommitted() {
1537 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161538
avi2b177592014-12-10 02:08:021539 DCHECK_EQ(0, last_committed_entry_index_);
1540 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441541
avi2b177592014-12-10 02:08:021542 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1543 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441544}
1545
[email protected]79368982013-11-13 01:11:011546void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161547 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011548 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261549
[email protected]474f8512013-05-31 22:31:161550 // Erase all entries but the last committed entry. There may still be a
1551 // new pending entry after this.
1552 entries_.erase(entries_.begin(),
1553 entries_.begin() + last_committed_entry_index_);
1554 entries_.erase(entries_.begin() + 1, entries_.end());
1555 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261556}
1557
[email protected]15f46dc2013-01-24 05:40:241558void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101559 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241560}
1561
[email protected]d1198fd2012-08-13 22:50:191562void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301563 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211564 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191565 if (!session_storage_namespace)
1566 return;
1567
1568 // We can't overwrite an existing SessionStorage without violating spec.
1569 // Attempts to do so may give a tab access to another tab's session storage
1570 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301571 bool successful_insert = session_storage_namespace_map_.insert(
1572 make_pair(partition_id,
1573 static_cast<SessionStorageNamespaceImpl*>(
1574 session_storage_namespace)))
1575 .second;
1576 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191577}
1578
avib7348942015-12-25 20:57:101579void NavigationControllerImpl::SetMaxRestoredPageID(int32_t max_id) {
[email protected]71fde352011-12-29 03:29:561580 max_restored_page_id_ = max_id;
1581}
1582
avib7348942015-12-25 20:57:101583int32_t NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561584 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551585}
1586
[email protected]aa62afd2014-04-22 19:22:461587bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461588 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101589 !GetLastCommittedEntry() &&
1590 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461591}
1592
[email protected]a26023822011-12-29 00:23:551593SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301594NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1595 std::string partition_id;
1596 if (instance) {
1597 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1598 // this if statement so |instance| must not be NULL.
1599 partition_id =
1600 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1601 browser_context_, instance->GetSiteURL());
1602 }
[email protected]d1198fd2012-08-13 22:50:191603
[email protected]fdac6ade2013-07-20 01:06:301604 // TODO(ajwong): Should this use the |partition_id| directly rather than
1605 // re-lookup via |instance|? http://crbug.com/142685
1606 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:031607 BrowserContext::GetStoragePartition(browser_context_, instance);
1608 DOMStorageContextWrapper* context_wrapper =
1609 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1610
1611 SessionStorageNamespaceMap::const_iterator it =
1612 session_storage_namespace_map_.find(partition_id);
1613 if (it != session_storage_namespace_map_.end()) {
1614 // Ensure that this namespace actually belongs to this partition.
1615 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
1616 IsFromContext(context_wrapper));
1617 return it->second.get();
1618 }
1619
1620 // Create one if no one has accessed session storage for this partition yet.
[email protected]fdac6ade2013-07-20 01:06:301621 SessionStorageNamespaceImpl* session_storage_namespace =
michaelnbacbcbd2016-02-09 00:32:031622 new SessionStorageNamespaceImpl(context_wrapper);
[email protected]fdac6ade2013-07-20 01:06:301623 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1624
1625 return session_storage_namespace;
1626}
1627
1628SessionStorageNamespace*
1629NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1630 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1631 return GetSessionStorageNamespace(NULL);
1632}
1633
1634const SessionStorageNamespaceMap&
1635NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1636 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551637}
[email protected]d202a7c2012-01-04 07:53:471638
1639bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561640 return needs_reload_;
1641}
[email protected]a26023822011-12-29 00:23:551642
[email protected]46bb5e9c2013-10-03 22:16:471643void NavigationControllerImpl::SetNeedsReload() {
1644 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541645
1646 if (last_committed_entry_index_ != -1) {
1647 entries_[last_committed_entry_index_]->SetTransitionType(
1648 ui::PAGE_TRANSITION_RELOAD);
1649 }
[email protected]46bb5e9c2013-10-03 22:16:471650}
1651
[email protected]d202a7c2012-01-04 07:53:471652void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551653 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121654 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311655
1656 DiscardNonCommittedEntries();
1657
1658 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121659 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311660 last_committed_entry_index_--;
1661}
1662
[email protected]d202a7c2012-01-04 07:53:471663void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471664 bool transient = transient_entry_index_ != -1;
1665 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291666
[email protected]cbab76d2008-10-13 22:42:471667 // If there was a transient entry, invalidate everything so the new active
1668 // entry state is shown.
1669 if (transient) {
[email protected]7f924832014-08-09 05:57:221670 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471671 }
initial.commit09911bf2008-07-26 23:55:291672}
1673
creis3da03872015-02-20 21:12:321674NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251675 return pending_entry_;
1676}
1677
[email protected]d202a7c2012-01-04 07:53:471678int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551679 return pending_entry_index_;
1680}
1681
avi25764702015-06-23 15:43:371682void NavigationControllerImpl::InsertOrReplaceEntry(
1683 scoped_ptr<NavigationEntryImpl> entry, bool replace) {
Sylvain Defresnec6ccc77d2014-09-19 10:19:351684 DCHECK(entry->GetTransitionType() != ui::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201685
avi5cad4912015-06-19 05:25:441686 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1687 // need to keep continuity with the pending entry, so copy the pending entry's
1688 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1689 // then the renderer navigated on its own, independent of the pending entry,
1690 // so don't copy anything.
1691 if (pending_entry_ && pending_entry_index_ == -1)
1692 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201693
[email protected]cbab76d2008-10-13 22:42:471694 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201695
1696 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221697
1698 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181699 if (replace && current_size > 0) {
avib7348942015-12-25 20:57:101700 int32_t page_id = entry->GetPageID();
creisee17e932015-07-17 17:56:221701
dcheng36b6aec92015-12-26 06:16:361702 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221703
1704 // This is a new page ID, so we need everybody to know about it.
1705 delegate_->UpdateMaxPageID(page_id);
1706 return;
1707 }
[email protected]765b35502008-08-21 00:51:201708
creis37979a62015-08-04 19:48:181709 // We shouldn't see replace == true when there's no committed entries.
1710 DCHECK(!replace);
1711
[email protected]765b35502008-08-21 00:51:201712 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451713 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311714 // last_committed_entry_index_ must be updated here since calls to
1715 // NotifyPrunedEntries() below may re-enter and we must make sure
1716 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491717 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311718 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491719 num_pruned++;
[email protected]765b35502008-08-21 00:51:201720 entries_.pop_back();
1721 current_size--;
1722 }
[email protected]c12bf1a12008-09-17 16:28:491723 if (num_pruned > 0) // Only notify if we did prune something.
1724 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201725 }
1726
[email protected]944822b2012-03-02 20:57:251727 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201728
avib7348942015-12-25 20:57:101729 int32_t page_id = entry->GetPageID();
dcheng36b6aec92015-12-26 06:16:361730 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201731 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431732
1733 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371734 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291735}
1736
[email protected]944822b2012-03-02 20:57:251737void NavigationControllerImpl::PruneOldestEntryIfFull() {
1738 if (entries_.size() >= max_entry_count()) {
1739 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021740 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251741 RemoveEntryAtIndex(0);
1742 NotifyPrunedEntries(this, true, 1);
1743 }
1744}
1745
[email protected]d202a7c2012-01-04 07:53:471746void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011747 needs_reload_ = false;
1748
[email protected]83c2e232011-10-07 21:36:461749 // If we were navigating to a slow-to-commit page, and the user performs
1750 // a session history navigation to the last committed page, RenderViewHost
1751 // will force the throbber to start, but WebKit will essentially ignore the
1752 // navigation, and won't send a message to stop the throbber. To prevent this
1753 // from happening, we drop the navigation here and stop the slow-to-commit
1754 // page from loading (which would normally happen during the navigation).
1755 if (pending_entry_index_ != -1 &&
1756 pending_entry_index_ == last_committed_entry_index_ &&
1757 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231758 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511759 (entries_[pending_entry_index_]->GetTransitionType() &
Sylvain Defresnec6ccc77d2014-09-19 10:19:351760 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571761 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121762
1763 // If an interstitial page is showing, we want to close it to get back
1764 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571765 if (delegate_->GetInterstitialPage())
1766 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121767
[email protected]83c2e232011-10-07 21:36:461768 DiscardNonCommittedEntries();
1769 return;
1770 }
1771
[email protected]6a13a6c2011-12-20 21:47:121772 // If an interstitial page is showing, the previous renderer is blocked and
1773 // cannot make new requests. Unblock (and disable) it to allow this
1774 // navigation to succeed. The interstitial will stay visible until the
1775 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571776 if (delegate_->GetInterstitialPage()) {
1777 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131778 CancelForNavigation();
1779 }
[email protected]6a13a6c2011-12-20 21:47:121780
initial.commit09911bf2008-07-26 23:55:291781 // For session history navigations only the pending_entry_index_ is set.
1782 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341783 CHECK_NE(pending_entry_index_, -1);
avif16f85a72015-11-13 18:25:031784 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291785 }
1786
creiscf40d9c2015-09-11 18:20:541787 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1788 // renderer process is not live, unless it is the initial navigation of the
1789 // tab.
1790 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1791 // TODO(creis): Find the RVH for the correct frame.
1792 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1793 !IsInitialNavigation()) {
1794 DiscardNonCommittedEntries();
1795 return;
1796 }
1797 }
1798
[email protected]40fd3032014-02-28 22:16:281799 // This call does not support re-entrancy. See http://crbug.com/347742.
1800 CHECK(!in_navigate_to_pending_entry_);
1801 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301802 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281803 in_navigate_to_pending_entry_ = false;
1804
1805 if (!success)
[email protected]cbab76d2008-10-13 22:42:471806 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291807}
1808
creis4e2ecb72015-06-20 00:46:301809bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1810 ReloadType reload_type) {
1811 DCHECK(pending_entry_);
1812 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1813
1814 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1815 // navigate the main frame or use the main frame's FrameNavigationEntry to
1816 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081817 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301818 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1819 FrameTreeNode* frame = root;
1820 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1821 if (ftn_id != -1) {
1822 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1823 DCHECK(frame);
1824 }
1825 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1826 reload_type, false);
1827 }
1828
1829 // In --site-per-process, we compare FrameNavigationEntries to see which
1830 // frames in the tree need to be navigated.
1831 FrameLoadVector same_document_loads;
1832 FrameLoadVector different_document_loads;
1833 if (GetLastCommittedEntry()) {
1834 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1835 }
1836
1837 if (same_document_loads.empty() && different_document_loads.empty()) {
1838 // If we don't have any frames to navigate at this point, either
1839 // (1) there is no previous history entry to compare against, or
1840 // (2) we were unable to match any frames by name. In the first case,
1841 // doing a different document navigation to the root item is the only valid
1842 // thing to do. In the second case, we should have been able to find a
1843 // frame to navigate based on names if this were a same document
1844 // navigation, so we can safely assume this is the different document case.
1845 different_document_loads.push_back(
1846 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1847 }
1848
1849 // If all the frame loads fail, we will discard the pending entry.
1850 bool success = false;
1851
1852 // Send all the same document frame loads before the different document loads.
1853 for (const auto& item : same_document_loads) {
1854 FrameTreeNode* frame = item.first;
1855 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1856 reload_type, true);
1857 }
1858 for (const auto& item : different_document_loads) {
1859 FrameTreeNode* frame = item.first;
1860 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1861 reload_type, false);
1862 }
1863 return success;
1864}
1865
1866void NavigationControllerImpl::FindFramesToNavigate(
1867 FrameTreeNode* frame,
1868 FrameLoadVector* same_document_loads,
1869 FrameLoadVector* different_document_loads) {
1870 DCHECK(pending_entry_);
1871 DCHECK_GE(last_committed_entry_index_, 0);
1872 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
1873 FrameNavigationEntry* old_item =
1874 GetLastCommittedEntry()->GetFrameEntry(frame);
1875 if (!new_item)
1876 return;
1877
1878 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:561879 // sequence number in the same SiteInstance. Newly restored items may not have
1880 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:301881 if (!old_item ||
1882 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:561883 (new_item->site_instance() != nullptr &&
1884 new_item->site_instance() != old_item->site_instance())) {
creis4e2ecb72015-06-20 00:46:301885 if (old_item &&
creis4e2ecb72015-06-20 00:46:301886 new_item->document_sequence_number() ==
1887 old_item->document_sequence_number()) {
1888 same_document_loads->push_back(std::make_pair(frame, new_item));
1889 } else {
1890 different_document_loads->push_back(std::make_pair(frame, new_item));
avib3b47ab2016-01-22 20:53:581891 // For a different document, the subframes will be destroyed, so there's
1892 // no need to consider them.
1893 return;
creis4e2ecb72015-06-20 00:46:301894 }
creis4e2ecb72015-06-20 00:46:301895 }
1896
1897 for (size_t i = 0; i < frame->child_count(); i++) {
1898 FindFramesToNavigate(frame->child_at(i), same_document_loads,
1899 different_document_loads);
1900 }
1901}
1902
[email protected]d202a7c2012-01-04 07:53:471903void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211904 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271905 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401906
[email protected]2db9bd72012-04-13 20:20:561907 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401908 // location bar will have up-to-date information about the security style
1909 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131910 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401911
[email protected]7f924832014-08-09 05:57:221912 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:571913 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461914
[email protected]b0f724c2013-09-05 04:21:131915 // TODO(avi): Remove. http://crbug.com/170921
1916 NotificationDetails notification_details =
1917 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211918 NotificationService::current()->Notify(
1919 NOTIFICATION_NAV_ENTRY_COMMITTED,
1920 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401921 notification_details);
initial.commit09911bf2008-07-26 23:55:291922}
1923
initial.commit09911bf2008-07-26 23:55:291924// static
[email protected]d202a7c2012-01-04 07:53:471925size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231926 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1927 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211928 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231929}
1930
[email protected]d202a7c2012-01-04 07:53:471931void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221932 if (is_active && needs_reload_)
1933 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291934}
1935
[email protected]d202a7c2012-01-04 07:53:471936void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291937 if (!needs_reload_)
1938 return;
1939
initial.commit09911bf2008-07-26 23:55:291940 // Calling Reload() results in ignoring state, and not loading.
1941 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1942 // cached state.
avicc872d7242015-08-19 21:26:341943 if (pending_entry_) {
1944 NavigateToPendingEntry(NO_RELOAD);
1945 } else if (last_committed_entry_index_ != -1) {
1946 pending_entry_index_ = last_committed_entry_index_;
1947 NavigateToPendingEntry(NO_RELOAD);
1948 } else {
1949 // If there is something to reload, the successful reload will clear the
1950 // |needs_reload_| flag. Otherwise, just do it here.
1951 needs_reload_ = false;
1952 }
initial.commit09911bf2008-07-26 23:55:291953}
1954
avi47179332015-05-20 21:01:111955void NavigationControllerImpl::NotifyEntryChanged(
1956 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:211957 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091958 det.changed_entry = entry;
avi47179332015-05-20 21:01:111959 det.index = GetIndexOfEntry(
1960 NavigationEntryImpl::FromNavigationEntry(entry));
[email protected]8ff00d72012-10-23 19:12:211961 NotificationService::current()->Notify(
1962 NOTIFICATION_NAV_ENTRY_CHANGED,
1963 Source<NavigationController>(this),
1964 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291965}
1966
[email protected]d202a7c2012-01-04 07:53:471967void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361968 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551969 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361970 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291971
avib7348942015-12-25 20:57:101972 SetMaxRestoredPageID(static_cast<int32_t>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291973
1974 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291975}
[email protected]765b35502008-08-21 00:51:201976
[email protected]d202a7c2012-01-04 07:53:471977void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:451978 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:481979 DiscardTransientEntry();
1980}
1981
avi45a72532015-04-07 21:01:451982void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:281983 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:401984 // progress, since this will cause a use-after-free. (We only allow this
1985 // when the tab is being destroyed for shutdown, since it won't return to
1986 // NavigateToEntry in that case.) http://crbug.com/347742.
1987 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:281988
avi45a72532015-04-07 21:01:451989 if (was_failure && pending_entry_) {
1990 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
1991 failed_pending_entry_should_replace_ =
1992 pending_entry_->should_replace_entry();
1993 } else {
1994 failed_pending_entry_id_ = 0;
1995 }
1996
[email protected]765b35502008-08-21 00:51:201997 if (pending_entry_index_ == -1)
1998 delete pending_entry_;
1999 pending_entry_ = NULL;
2000 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:472001}
2002
[email protected]d202a7c2012-01-04 07:53:472003void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:472004 if (transient_entry_index_ == -1)
2005 return;
[email protected]a0e69262009-06-03 19:08:482006 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:182007 if (last_committed_entry_index_ > transient_entry_index_)
2008 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:472009 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:202010}
2011
avib7348942015-12-25 20:57:102012int NavigationControllerImpl::GetEntryIndexWithPageID(SiteInstance* instance,
2013 int32_t page_id) const {
[email protected]765b35502008-08-21 00:51:202014 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:112015 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:512016 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:202017 return i;
2018 }
2019 return -1;
2020}
[email protected]cbab76d2008-10-13 22:42:472021
avi7c6f35e2015-05-08 17:52:382022int NavigationControllerImpl::GetEntryIndexWithUniqueID(
2023 int nav_entry_id) const {
2024 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
2025 if (entries_[i]->GetUniqueID() == nav_entry_id)
2026 return i;
2027 }
2028 return -1;
2029}
2030
creis3da03872015-02-20 21:12:322031NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:472032 if (transient_entry_index_ == -1)
2033 return NULL;
avif16f85a72015-11-13 18:25:032034 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:472035}
[email protected]e1cd5452010-08-26 18:03:252036
avi25764702015-06-23 15:43:372037void NavigationControllerImpl::SetTransientEntry(
2038 scoped_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212039 // Discard any current transient entry, we can only have one at a time.
2040 int index = 0;
2041 if (last_committed_entry_index_ != -1)
2042 index = last_committed_entry_index_ + 1;
2043 DiscardTransientEntry();
avi25764702015-06-23 15:43:372044 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:362045 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
[email protected]0b684262013-02-20 02:18:212046 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222047 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212048}
2049
[email protected]d202a7c2012-01-04 07:53:472050void NavigationControllerImpl::InsertEntriesFrom(
2051 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252052 int max_index) {
[email protected]a26023822011-12-29 00:23:552053 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252054 size_t insert_index = 0;
2055 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352056 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372057 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352058 // TODO(creis): Once we start sharing FrameNavigationEntries between
2059 // NavigationEntries, it will not be safe to share them with another tab.
2060 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252061 entries_.insert(entries_.begin() + insert_index++,
dcheng36b6aec92015-12-26 06:16:362062 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:252063 }
2064 }
2065}
[email protected]c5b88d82012-10-06 17:03:332066
2067void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2068 const base::Callback<base::Time()>& get_timestamp_callback) {
2069 get_timestamp_callback_ = get_timestamp_callback;
2070}
[email protected]8ff00d72012-10-23 19:12:212071
2072} // namespace content