blob: a5034a515455b3df0c4578c452e9bc1d27d6d9d8 [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)) {
293 ReloadInternal(check_for_repost, NO_RELOAD);
294 } else {
295 ReloadInternal(check_for_repost, RELOAD);
296 }
297}
[email protected]d202a7c2012-01-04 07:53:47298void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16299 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
300}
[email protected]7c16976c2012-08-04 02:38:23301void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
302 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
303}
megjablond5ac7d52015-10-22 23:56:12304void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
305 ReloadInternal(check_for_repost, RELOAD_DISABLE_LOFI_MODE);
306}
[email protected]1ccb3568d2010-02-19 10:51:16307
[email protected]d202a7c2012-01-04 07:53:47308void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
309 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36310 if (transient_entry_index_ != -1) {
311 // If an interstitial is showing, treat a reload as a navigation to the
312 // transient entry's URL.
creis3da03872015-02-20 21:12:32313 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27314 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36315 return;
[email protected]6286a3792013-10-09 04:03:27316 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21317 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35318 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27319 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47320 return;
[email protected]669e0ba2012-08-30 23:57:36321 }
[email protected]cbab76d2008-10-13 22:42:47322
[email protected]59167c22013-06-03 18:07:32323 NavigationEntryImpl* entry = NULL;
324 int current_index = -1;
325
326 // If we are reloading the initial navigation, just use the current
327 // pending entry. Otherwise look up the current entry.
328 if (IsInitialNavigation() && pending_entry_) {
329 entry = pending_entry_;
330 // The pending entry might be in entries_ (e.g., after a Clone), so we
331 // should also update the current_index.
332 current_index = pending_entry_index_;
333 } else {
334 DiscardNonCommittedEntriesInternal();
335 current_index = GetCurrentEntryIndex();
336 if (current_index != -1) {
creis3da03872015-02-20 21:12:32337 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32338 }
[email protected]979a4bc2013-04-24 01:27:15339 }
[email protected]241db352013-04-22 18:04:05340
[email protected]59167c22013-06-03 18:07:32341 // If we are no where, then we can't reload. TODO(darin): We should add a
342 // CanReload method.
343 if (!entry)
344 return;
345
[email protected]cdcb1dee2012-01-04 00:46:20346 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32347 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30348 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07349 // they really want to do this. If they do, the dialog will call us back
350 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57351 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02352
[email protected]106a0812010-03-18 00:15:12353 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57354 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29355 } else {
[email protected]59167c22013-06-03 18:07:32356 if (!IsInitialNavigation())
357 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26358
[email protected]bcd904482012-02-01 01:54:22359 // If we are reloading an entry that no longer belongs to the current
360 // site instance (for example, refreshing a page for just installed app),
361 // the reload must happen in a new process.
362 // The new entry must have a new page_id and site instance, so it behaves
363 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30364 // Tabs that are discarded due to low memory conditions may not have a site
365 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32366 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21367 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10368 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
369 site_instance->GetProcess()->IsForGuestsOnly();
370 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30371 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22372 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46373 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22374 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
375 CreateNavigationEntry(
376 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37377 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26378
[email protected]11535962012-02-09 21:02:10379 // Mark the reload type as NO_RELOAD, so navigation will not be considered
380 // a reload in the renderer.
381 reload_type = NavigationController::NO_RELOAD;
382
[email protected]e2caa032012-11-15 23:29:18383 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22384 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46385 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22386 } else {
[email protected]59167c22013-06-03 18:07:32387 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22388 pending_entry_index_ = current_index;
389
390 // The title of the page being reloaded might have been removed in the
391 // meanwhile, so we need to revert to the default title upon reload and
392 // invalidate the previously cached title (SetTitle will do both).
393 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26394 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22395
Sylvain Defresnec6ccc77d2014-09-19 10:19:35396 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22397 }
398
[email protected]1ccb3568d2010-02-19 10:51:16399 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29400 }
401}
402
[email protected]d202a7c2012-01-04 07:53:47403void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12404 DCHECK(pending_reload_ != NO_RELOAD);
405 pending_reload_ = NO_RELOAD;
406}
407
[email protected]d202a7c2012-01-04 07:53:47408void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12409 if (pending_reload_ == NO_RELOAD) {
410 NOTREACHED();
411 } else {
412 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02413 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12414 }
415}
416
[email protected]cd2e15742013-03-08 04:08:31417bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09418 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11419}
420
creis10a4ab72015-10-13 17:22:40421bool NavigationControllerImpl::IsInitialBlankNavigation() const {
422 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
423 // we'll need to check for entry count 1 and restore_type RESTORE_NONE (to
424 // exclude the cloned tab case).
425 return IsInitialNavigation() && GetEntryCount() == 0;
426}
427
[email protected]d202a7c2012-01-04 07:53:47428NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
avib7348942015-12-25 20:57:10429 SiteInstance* instance,
430 int32_t page_id) const {
[email protected]7f0005a2009-04-15 03:25:11431 int index = GetEntryIndexWithPageID(instance, page_id);
avif16f85a72015-11-13 18:25:03432 return (index != -1) ? entries_[index].get() : nullptr;
[email protected]765b35502008-08-21 00:51:20433}
434
avi254eff02015-07-01 08:27:58435NavigationEntryImpl*
436NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
437 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03438 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58439}
440
avi25764702015-06-23 15:43:37441void NavigationControllerImpl::LoadEntry(
442 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20443 // When navigating to a new page, we don't know for sure if we will actually
444 // end up leaving the current page. The new page load could for example
445 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36446 SetPendingEntry(std::move(entry));
[email protected]59167c22013-06-03 18:07:32447 NavigateToPendingEntry(NO_RELOAD);
448}
449
avi25764702015-06-23 15:43:37450void NavigationControllerImpl::SetPendingEntry(
451 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47452 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37453 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21454 NotificationService::current()->Notify(
455 NOTIFICATION_NAV_ENTRY_PENDING,
456 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37457 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20458}
459
creis3da03872015-02-20 21:12:32460NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47461 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03462 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47463 if (pending_entry_)
464 return pending_entry_;
465 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20466}
467
creis3da03872015-02-20 21:12:32468NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19469 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03470 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32471 // The pending entry is safe to return for new (non-history), browser-
472 // initiated navigations. Most renderer-initiated navigations should not
473 // show the pending entry, to prevent URL spoof attacks.
474 //
475 // We make an exception for renderer-initiated navigations in new tabs, as
476 // long as no other page has tried to access the initial empty document in
477 // the new tab. If another page modifies this blank page, a URL spoof is
478 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32479 bool safe_to_show_pending =
480 pending_entry_ &&
481 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09482 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32483 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46484 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32485
486 // Also allow showing the pending entry for history navigations in a new tab,
487 // such as Ctrl+Back. In this case, no existing page is visible and no one
488 // can script the new tab before it commits.
489 if (!safe_to_show_pending &&
490 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09491 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32492 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34493 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32494 safe_to_show_pending = true;
495
496 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19497 return pending_entry_;
498 return GetLastCommittedEntry();
499}
500
[email protected]d202a7c2012-01-04 07:53:47501int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47502 if (transient_entry_index_ != -1)
503 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20504 if (pending_entry_index_ != -1)
505 return pending_entry_index_;
506 return last_committed_entry_index_;
507}
508
creis3da03872015-02-20 21:12:32509NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20510 if (last_committed_entry_index_ == -1)
511 return NULL;
avif16f85a72015-11-13 18:25:03512 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20513}
514
[email protected]d202a7c2012-01-04 07:53:47515bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57516 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25517 bool is_viewable_mime_type =
518 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59519 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27520 NavigationEntry* visible_entry = GetVisibleEntry();
521 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57522 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16523}
524
[email protected]d202a7c2012-01-04 07:53:47525int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55526 return last_committed_entry_index_;
527}
528
[email protected]d202a7c2012-01-04 07:53:47529int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25530 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55531 return static_cast<int>(entries_.size());
532}
533
creis3da03872015-02-20 21:12:32534NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25535 int index) const {
avi25764702015-06-23 15:43:37536 if (index < 0 || index >= GetEntryCount())
537 return nullptr;
538
avif16f85a72015-11-13 18:25:03539 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25540}
541
creis3da03872015-02-20 21:12:32542NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25543 int offset) const {
avi057ce1492015-06-29 15:59:47544 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20545}
546
[email protected]9ba14052012-06-22 23:50:03547int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46548 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03549}
550
[email protected]9677a3c2012-12-22 04:18:58551void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10552 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58553}
554
[email protected]1a3f5312013-04-26 21:00:10555void NavigationControllerImpl::SetScreenshotManager(
avi67081d0ae2015-07-27 18:25:46556 scoped_ptr<NavigationEntryScreenshotManager> manager) {
557 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36558 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46559 else
560 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58561}
562
[email protected]d202a7c2012-01-04 07:53:47563bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22564 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20565}
566
[email protected]d202a7c2012-01-04 07:53:47567bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22568 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20569}
570
[email protected]9ba14052012-06-22 23:50:03571bool NavigationControllerImpl::CanGoToOffset(int offset) const {
572 int index = GetIndexForOffset(offset);
573 return index >= 0 && index < GetEntryCount();
574}
575
[email protected]d202a7c2012-01-04 07:53:47576void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20577 if (!CanGoBack()) {
578 NOTREACHED();
579 return;
580 }
581
582 // Base the navigation on where we are now...
583 int current_index = GetCurrentEntryIndex();
584
[email protected]cbab76d2008-10-13 22:42:47585 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20586
587 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25588 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35589 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51590 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35591 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16592 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20593}
594
[email protected]d202a7c2012-01-04 07:53:47595void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20596 if (!CanGoForward()) {
597 NOTREACHED();
598 return;
599 }
600
[email protected]cbab76d2008-10-13 22:42:47601 bool transient = (transient_entry_index_ != -1);
602
[email protected]765b35502008-08-21 00:51:20603 // Base the navigation on where we are now...
604 int current_index = GetCurrentEntryIndex();
605
[email protected]cbab76d2008-10-13 22:42:47606 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20607
[email protected]cbab76d2008-10-13 22:42:47608 pending_entry_index_ = current_index;
609 // If there was a transient entry, we removed it making the current index
610 // the next page.
611 if (!transient)
612 pending_entry_index_++;
613
[email protected]022af742011-12-28 18:37:25614 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35615 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51616 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35617 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16618 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20619}
620
[email protected]d202a7c2012-01-04 07:53:47621void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20622 if (index < 0 || index >= static_cast<int>(entries_.size())) {
623 NOTREACHED();
624 return;
625 }
626
[email protected]cbab76d2008-10-13 22:42:47627 if (transient_entry_index_ != -1) {
628 if (index == transient_entry_index_) {
629 // Nothing to do when navigating to the transient.
630 return;
631 }
632 if (index > transient_entry_index_) {
633 // Removing the transient is goint to shift all entries by 1.
634 index--;
635 }
636 }
637
638 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20639
640 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25641 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35642 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51643 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35644 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16645 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20646}
647
[email protected]d202a7c2012-01-04 07:53:47648void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03649 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20650 return;
651
[email protected]9ba14052012-06-22 23:50:03652 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20653}
654
[email protected]41374f12013-07-24 02:49:28655bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
656 if (index == last_committed_entry_index_ ||
657 index == pending_entry_index_)
658 return false;
[email protected]6a13a6c2011-12-20 21:47:12659
[email protected]43032342011-03-21 14:10:31660 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28661 return true;
[email protected]cbab76d2008-10-13 22:42:47662}
663
[email protected]d202a7c2012-01-04 07:53:47664void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23665 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32666 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31667 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51668 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
669 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32670 }
671}
672
[email protected]d202a7c2012-01-04 07:53:47673void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47674 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21675 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35676 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47677 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47678 LoadURLParams params(url);
679 params.referrer = referrer;
680 params.transition_type = transition;
681 params.extra_headers = extra_headers;
682 LoadURLWithParams(params);
683}
684
685void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43686 TRACE_EVENT1("browser,navigation",
687 "NavigationControllerImpl::LoadURLWithParams",
688 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43689 if (HandleDebugURL(params.url, params.transition_type)) {
690 // If Telemetry is running, allow the URL load to proceed as if it's
691 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49692 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43693 cc::switches::kEnableGpuBenchmarking))
694 return;
695 }
[email protected]8bf1048012012-02-08 01:22:18696
[email protected]cf002332012-08-14 19:17:47697 // Checks based on params.load_type.
698 switch (params.load_type) {
699 case LOAD_TYPE_DEFAULT:
700 break;
701 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e8ca69c2014-05-07 15:31:19702 if (!params.url.SchemeIs(url::kHttpScheme) &&
703 !params.url.SchemeIs(url::kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47704 NOTREACHED() << "Http post load must use http(s) scheme.";
705 return;
706 }
707 break;
708 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26709 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47710 NOTREACHED() << "Data load must use data scheme.";
711 return;
712 }
713 break;
714 default:
715 NOTREACHED();
716 break;
717 };
[email protected]e47ae9472011-10-13 19:48:34718
[email protected]e47ae9472011-10-13 19:48:34719 // The user initiated a load, we don't need to reload anymore.
720 needs_reload_ = false;
721
[email protected]cf002332012-08-14 19:17:47722 bool override = false;
723 switch (params.override_user_agent) {
724 case UA_OVERRIDE_INHERIT:
725 override = ShouldKeepOverride(GetLastCommittedEntry());
726 break;
727 case UA_OVERRIDE_TRUE:
728 override = true;
729 break;
730 case UA_OVERRIDE_FALSE:
731 override = false;
732 break;
733 default:
734 NOTREACHED();
735 break;
[email protected]d1ef81d2012-07-24 11:39:36736 }
737
avi25764702015-06-23 15:43:37738 scoped_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30739
740 // For subframes, create a pending entry with a corresponding frame entry.
741 int frame_tree_node_id = params.frame_tree_node_id;
742 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
743 FrameTreeNode* node =
744 params.frame_tree_node_id != -1
745 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
746 : delegate_->GetFrameTree()->FindByName(params.frame_name);
747 if (node && !node->IsMainFrame()) {
748 DCHECK(GetLastCommittedEntry());
749
750 // Update the FTN ID to use below in case we found a named frame.
751 frame_tree_node_id = node->frame_tree_node_id();
752
753 // In --site-per-process, create an identical NavigationEntry with a
754 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08755 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30756 entry = GetLastCommittedEntry()->Clone();
757 entry->SetPageID(-1);
creis6d752c32015-11-10 01:59:43758 entry->AddOrUpdateFrameEntry(node, "", -1, -1, nullptr, params.url,
creis4e2ecb72015-06-20 00:46:30759 params.referrer, PageState());
760 }
761 }
creis6a93a812015-04-24 23:13:17762 }
creis4e2ecb72015-06-20 00:46:30763
764 // Otherwise, create a pending entry for the main frame.
765 if (!entry) {
766 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
767 params.url, params.referrer, params.transition_type,
768 params.is_renderer_initiated, params.extra_headers, browser_context_));
769 }
770 // Set the FTN ID (only used in non-site-per-process, for tests).
771 entry->set_frame_tree_node_id(frame_tree_node_id);
lfg9ef7d2d2014-12-15 22:32:30772 entry->set_source_site_instance(
773 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
[email protected]f8872902013-10-30 03:18:57774 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21775 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39776 // Don't allow an entry replacement if there is no entry to replace.
777 // http://crbug.com/457149
778 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18779 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13780 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47781 entry->SetIsOverridingUserAgent(override);
782 entry->set_transferred_global_request_id(
783 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36784
clamy8451aa62015-01-23 16:56:08785#if defined(OS_ANDROID)
786 if (params.intent_received_timestamp > 0) {
787 entry->set_intent_received_timestamp(
788 base::TimeTicks() +
789 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
790 }
qinmin976d4d92015-08-07 18:32:39791 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08792#endif
793
[email protected]cf002332012-08-14 19:17:47794 switch (params.load_type) {
795 case LOAD_TYPE_DEFAULT:
796 break;
797 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
798 entry->SetHasPostData(true);
799 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46800 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47801 break;
802 case LOAD_TYPE_DATA:
803 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
804 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03805#if defined(OS_ANDROID)
806 entry->SetDataURLAsString(params.data_url_as_string);
807#endif
[email protected]951a64832012-10-11 16:26:37808 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47809 break;
810 default:
811 NOTREACHED();
812 break;
813 };
[email protected]132e281a2012-07-31 18:32:44814
dcheng36b6aec92015-12-26 06:16:36815 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44816}
817
[email protected]d202a7c2012-01-04 07:53:47818bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32819 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22820 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21821 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31822 is_initial_navigation_ = false;
823
[email protected]0e8db942008-09-24 21:21:48824 // Save the previous state before we clobber it.
825 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51826 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55827 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48828 } else {
829 details->previous_url = GURL();
830 details->previous_entry_index = -1;
831 }
[email protected]ecd9d8702008-08-28 22:10:17832
fdegans9caf66a2015-07-30 21:10:42833 // If there is a pending entry at this point, it should have a SiteInstance,
834 // except for restored entries.
835 DCHECK(pending_entry_index_ == -1 ||
836 pending_entry_->site_instance() ||
837 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
838 if (pending_entry_ &&
839 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
840 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]e9ba4472008-09-14 15:42:43841
[email protected]bcd904482012-02-01 01:54:22842 // If we are doing a cross-site reload, we need to replace the existing
843 // navigation entry, not add another entry to the history. This has the side
avi45a72532015-04-07 21:01:45844 // effect of removing forward browsing history, if such existed. Or if we are
845 // doing a cross-site redirect navigation, we will do a similar thing.
846 //
847 // If this is an error load, we may have already removed the pending entry
848 // when we got the notice of the load failure. If so, look at the copy of the
849 // pending parameters that were saved.
avi45a72532015-04-07 21:01:45850 if (params.url_is_unreachable && failed_pending_entry_id_ != 0) {
851 details->did_replace_entry = failed_pending_entry_should_replace_;
852 } else {
853 details->did_replace_entry = pending_entry_ &&
854 pending_entry_->should_replace_entry();
855 }
[email protected]bcd904482012-02-01 01:54:22856
[email protected]e9ba4472008-09-14 15:42:43857 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43858 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20859
[email protected]b9d4dfdc2013-08-08 00:25:12860 // is_in_page must be computed before the entry gets committed.
avidb7d1d22015-06-08 21:21:50861 details->is_in_page = IsURLInPageNavigation(
[email protected]5cfbddc2014-06-23 23:52:23862 params.url, params.was_within_same_page, rfh);
[email protected]b9d4dfdc2013-08-08 00:25:12863
[email protected]0e8db942008-09-24 21:21:48864 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21865 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43866 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43867 break;
[email protected]8ff00d72012-10-23 19:12:21868 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36869 details->did_replace_entry = details->is_in_page;
[email protected]27dd82fd2014-03-03 22:11:43870 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43871 break;
[email protected]8ff00d72012-10-23 19:12:21872 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43873 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43874 break;
[email protected]8ff00d72012-10-23 19:12:21875 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43876 RendererDidNavigateNewSubframe(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43877 break;
[email protected]8ff00d72012-10-23 19:12:21878 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43879 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43880 return false;
881 break;
[email protected]8ff00d72012-10-23 19:12:21882 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49883 // If a pending navigation was in progress, this canceled it. We should
884 // discard it and make sure it is removed from the URL bar. After that,
885 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43886 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49887 if (pending_entry_) {
888 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57889 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49890 }
[email protected]e9ba4472008-09-14 15:42:43891 return false;
892 default:
893 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20894 }
895
[email protected]688aa65c62012-09-28 04:32:22896 // At this point, we know that the navigation has just completed, so
897 // record the time.
898 //
899 // TODO(akalin): Use "sane time" as described in
900 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33901 base::Time timestamp =
902 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
903 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22904 << timestamp.ToInternalValue();
905
[email protected]f233e4232013-02-23 00:55:14906 // We should not have a pending entry anymore. Clear it again in case any
907 // error cases above forgot to do so.
908 DiscardNonCommittedEntriesInternal();
909
[email protected]e9ba4472008-09-14 15:42:43910 // All committed entries should have nonempty content state so WebKit doesn't
911 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04912 DCHECK(params.page_state.IsValid());
creis3da03872015-02-20 21:12:32913 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22914 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44915 active_entry->SetHttpStatusCode(params.http_status_code);
nickd30fd962015-07-27 21:51:08916 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30917 // Update the frame-specific PageState.
918 FrameNavigationEntry* frame_entry =
919 active_entry->GetFrameEntry(rfh->frame_tree_node());
creise062d542015-08-25 02:01:55920 // We may not find a frame_entry in some cases; ignore the PageState if so.
921 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
922 if (frame_entry)
923 frame_entry->set_page_state(params.page_state);
creis4e2ecb72015-06-20 00:46:30924 } else {
925 active_entry->SetPageState(params.page_state);
926 }
[email protected]c1982ff2014-04-23 03:37:21927 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44928
[email protected]d6def3d2014-05-19 18:55:32929 // Use histogram to track memory impact of redirect chain because it's now
930 // not cleared for committed entries.
931 size_t redirect_chain_size = 0;
932 for (size_t i = 0; i < params.redirects.size(); ++i) {
933 redirect_chain_size += params.redirects[i].spec().length();
934 }
935 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
936
[email protected]97d8f0d2013-10-29 16:49:21937 // Once it is committed, we no longer need to track several pieces of state on
938 // the entry.
939 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13940
[email protected]49bd30e62011-03-22 20:12:59941 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22942 // TODO(creis): This check won't pass for subframes until we create entries
943 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00944 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42945 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59946
[email protected]b26de072013-02-23 02:33:44947 // Remember the bindings the renderer process has at this point, so that
948 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32949 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44950
[email protected]e9ba4472008-09-14 15:42:43951 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00952 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00953 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31954 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53955
956 // Deserialize the security info and kill the renderer if
957 // deserialization fails. The navigation will continue with default
958 // SSLStatus values.
959 if (!DeserializeSecurityInfo(params.security_info, &details->ssl_status)) {
960 bad_message::ReceivedBadMessage(
961 rfh->GetProcess(),
962 bad_message::WC_RENDERER_DID_NAVIGATE_BAD_SECURITY_INFO);
963 }
964
[email protected]93f230e02011-06-01 14:40:00965 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29966
creis03b48002015-11-04 00:54:56967 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
968 // one knows the latest NavigationEntry it is showing (whether it has
969 // committed anything in this navigation or not). This allows things like
970 // state and title updates from RenderFrames to apply to the latest relevant
971 // NavigationEntry.
dcheng57e39e22016-01-21 00:25:38972 int nav_entry_id = active_entry->GetUniqueID();
973 for (FrameTreeNode* node : delegate_->GetFrameTree()->Nodes())
974 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
[email protected]e9ba4472008-09-14 15:42:43975 return true;
initial.commit09911bf2008-07-26 23:55:29976}
977
[email protected]8ff00d72012-10-23 19:12:21978NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32979 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22980 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38981 if (params.did_create_new_entry) {
982 // A new entry. We may or may not have a pending entry for the page, and
983 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00984 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38985 return NAVIGATION_TYPE_NEW_PAGE;
986 }
987
988 // When this is a new subframe navigation, we should have a committed page
989 // in which it's a subframe. This may not be the case when an iframe is
990 // navigated on a popup navigated to about:blank (the iframe would be
991 // written into the popup by script on the main page). For these cases,
992 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:23993 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:38994 return NAVIGATION_TYPE_NAV_IGNORE;
995
996 // Valid subframe navigation.
997 return NAVIGATION_TYPE_NEW_SUBFRAME;
998 }
999
avi7c6f35e2015-05-08 17:52:381000 // We only clear the session history when navigating to a new page.
1001 DCHECK(!params.history_list_was_cleared);
1002
avi39c1edd32015-06-04 20:06:001003 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381004 // All manual subframes would be did_create_new_entry and handled above, so
1005 // we know this is auto.
1006 if (GetLastCommittedEntry()) {
1007 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1008 } else {
1009 // We ignore subframes created in non-committed pages; we'd appreciate if
1010 // people stopped doing that.
1011 return NAVIGATION_TYPE_NAV_IGNORE;
1012 }
1013 }
1014
1015 if (params.nav_entry_id == 0) {
1016 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1017 // create a new page.
1018
1019 // Just like above in the did_create_new_entry case, it's possible to
1020 // scribble onto an uncommitted page. Again, there isn't any navigation
1021 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231022 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231023 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381024 return NAVIGATION_TYPE_NAV_IGNORE;
1025
avi259dc792015-07-07 04:42:361026 // This is history.replaceState(), history.reload(), or a client-side
1027 // redirect.
1028 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381029 }
1030
1031 if (pending_entry_ && pending_entry_index_ == -1 &&
1032 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1033 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421034 // didn't do a new navigation (params.did_create_new_entry). First check to
1035 // make sure Blink didn't treat a new cross-process navigation as inert, and
1036 // thus set params.did_create_new_entry to false. In that case, we must
1037 // treat it as NEW since the SiteInstance doesn't match the entry.
1038 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
1039 return NAVIGATION_TYPE_NEW_PAGE;
1040
1041 // Otherwise, this happens when you press enter in the URL bar to reload. We
1042 // will create a pending entry, but Blink will convert it to a reload since
1043 // it's the same page and not create a new entry for it (the user doesn't
1044 // want to have a new back/forward entry when they do this). Therefore we
1045 // want to just ignore the pending entry and go back to where we were (the
1046 // "existing entry").
1047 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381048 return NAVIGATION_TYPE_SAME_PAGE;
1049 }
1050
1051 if (params.intended_as_new_entry) {
1052 // This was intended to be a navigation to a new entry but the pending entry
1053 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1054 // may not have a pending entry.
1055 return NAVIGATION_TYPE_EXISTING_PAGE;
1056 }
1057
1058 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1059 params.nav_entry_id == failed_pending_entry_id_) {
1060 // If the renderer was going to a new pending entry that got cleared because
1061 // of an error, this is the case of the user trying to retry a failed load
1062 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1063 // have a pending entry.
1064 return NAVIGATION_TYPE_EXISTING_PAGE;
1065 }
1066
1067 // Now we know that the notification is for an existing page. Find that entry.
1068 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1069 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441070 // The renderer has committed a navigation to an entry that no longer
1071 // exists. Because the renderer is showing that page, resurrect that entry.
1072 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381073 }
1074
avi7c6f35e2015-05-08 17:52:381075 // Since we weeded out "new" navigations above, we know this is an existing
1076 // (back/forward) navigation.
1077 return NAVIGATION_TYPE_EXISTING_PAGE;
1078}
1079
[email protected]d202a7c2012-01-04 07:53:471080void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321081 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221082 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221083 bool replace_entry) {
avi25764702015-06-23 15:43:371084 scoped_ptr<NavigationEntryImpl> new_entry;
[email protected]f1eb87a2011-05-06 17:49:411085 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:341086 // Only make a copy of the pending entry if it is appropriate for the new page
1087 // that was just loaded. We verify this at a coarse grain by checking that
avi5cad4912015-06-19 05:25:441088 // the SiteInstance hasn't been assigned to something else, and by making sure
1089 // that the pending entry was intended as a new entry (rather than being a
1090 // history navigation that was interrupted by an unrelated, renderer-initiated
1091 // navigation).
1092 if (pending_entry_ && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341093 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431094 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351095 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431096
[email protected]f1eb87a2011-05-06 17:49:411097 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431098 } else {
avi25764702015-06-23 15:43:371099 new_entry = make_scoped_ptr(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241100
1101 // Find out whether the new entry needs to update its virtual URL on URL
1102 // change and set up the entry accordingly. This is needed to correctly
1103 // update the virtual URL when replaceState is called after a pushState.
1104 GURL url = params.url;
1105 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431106 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1107 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241108 new_entry->set_update_virtual_url_with_url(needs_update);
1109
[email protected]f1eb87a2011-05-06 17:49:411110 // When navigating to a new page, give the browser URL handler a chance to
1111 // update the virtual URL based on the new URL. For example, this is needed
1112 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1113 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241114 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431115 }
1116
wjmaclean7431bb22015-02-19 14:53:431117 // Don't use the page type from the pending entry. Some interstitial page
1118 // may have set the type to interstitial. Once we commit, however, the page
1119 // type must always be normal or error.
1120 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1121 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041122 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411123 if (update_virtual_url)
avi25764702015-06-23 15:43:371124 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251125 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511126 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251127 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331128 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431129 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511130 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051131 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231132 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221133 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431134
creis8b5cd4c2015-06-19 00:11:081135 // Update the FrameNavigationEntry for new main frame commits.
1136 FrameNavigationEntry* frame_entry =
1137 new_entry->GetFrameEntry(rfh->frame_tree_node());
creis6d752c32015-11-10 01:59:431138 frame_entry->set_frame_unique_name(params.frame_unique_name);
creis8b5cd4c2015-06-19 00:11:081139 frame_entry->set_item_sequence_number(params.item_sequence_number);
1140 frame_entry->set_document_sequence_number(params.document_sequence_number);
1141
[email protected]ff64b3e2014-05-31 04:07:331142 // history.pushState() is classified as a navigation to a new page, but
1143 // sets was_within_same_page to true. In this case, we already have the
[email protected]3a868f212014-08-09 10:41:191144 // title and favicon available, so set them immediately.
1145 if (params.was_within_same_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331146 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191147 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1148 }
[email protected]ff64b3e2014-05-31 04:07:331149
[email protected]60d6cca2013-04-30 08:47:131150 DCHECK(!params.history_list_was_cleared || !replace_entry);
1151 // The browser requested to clear the session history when it initiated the
1152 // navigation. Now we know that the renderer has updated its state accordingly
1153 // and it is safe to also clear the browser side history.
1154 if (params.history_list_was_cleared) {
1155 DiscardNonCommittedEntriesInternal();
1156 entries_.clear();
1157 last_committed_entry_index_ = -1;
1158 }
1159
dcheng36b6aec92015-12-26 06:16:361160 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431161}
1162
[email protected]d202a7c2012-01-04 07:53:471163void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321164 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221165 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431166 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001167 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431168
avicbdc4c12015-07-01 16:07:111169 NavigationEntryImpl* entry;
1170 if (params.intended_as_new_entry) {
1171 // This was intended as a new entry but the pending entry was lost in the
1172 // meanwhile and no new page was created. We are stuck at the last committed
1173 // entry.
1174 entry = GetLastCommittedEntry();
1175 } else if (params.nav_entry_id) {
1176 // This is a browser-initiated navigation (back/forward/reload).
1177 entry = GetEntryWithUniqueID(params.nav_entry_id);
1178 } else {
1179 // This is renderer-initiated. The only kinds of renderer-initated
1180 // navigations that are EXISTING_PAGE are reloads and location.replace,
1181 // which land us at the last committed entry.
1182 entry = GetLastCommittedEntry();
1183 }
1184 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431185
[email protected]5ccd4dc2012-10-24 02:28:141186 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431187 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1188 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041189 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201190 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321191 if (entry->update_virtual_url_with_url())
1192 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141193
1194 // The redirected to page should not inherit the favicon from the previous
1195 // page.
Sylvain Defresnec6ccc77d2014-09-19 10:19:351196 if (ui::PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481197 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141198
1199 // The site instance will normally be the same except during session restore,
1200 // when no site instance will be assigned.
fdegans9caf66a2015-07-30 21:10:421201 DCHECK(entry->site_instance() == nullptr ||
[email protected]27dd82fd2014-03-03 22:11:431202 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331203 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431204 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431205
[email protected]36fc0392011-12-25 03:59:511206 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051207 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411208
[email protected]e9ba4472008-09-14 15:42:431209 // The entry we found in the list might be pending if the user hit
1210 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591211 // list, we can just discard the pending pointer). We should also discard the
1212 // pending entry if it corresponds to a different navigation, since that one
1213 // is now likely canceled. If it is not canceled, we will treat it as a new
1214 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431215 //
1216 // Note that we need to use the "internal" version since we don't want to
1217 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491218 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391219
[email protected]80858db52009-10-15 00:35:181220 // If a transient entry was removed, the indices might have changed, so we
1221 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111222 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431223}
1224
[email protected]d202a7c2012-01-04 07:53:471225void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321226 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221227 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291228 // This classification says that we have a pending entry that's the same as
1229 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091230 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291231 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431232
creis77c9aa32015-09-25 19:59:421233 // If we classified this correctly, the SiteInstance should not have changed.
1234 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1235
[email protected]e9ba4472008-09-14 15:42:431236 // We assign the entry's unique ID to be that of the new one. Since this is
1237 // always the result of a user action, we want to dismiss infobars, etc. like
1238 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421239 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511240 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431241
[email protected]a0e69262009-06-03 19:08:481242 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431243 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1244 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321245 if (existing_entry->update_virtual_url_with_url())
1246 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041247 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201248 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481249
[email protected]b77686522013-12-11 20:34:191250 // The page may have been requested with a different HTTP method.
1251 existing_entry->SetHasPostData(params.is_post);
1252 existing_entry->SetPostID(params.post_id);
1253
[email protected]cbab76d2008-10-13 22:42:471254 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431255}
1256
[email protected]d202a7c2012-01-04 07:53:471257void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321258 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221259 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi25f5f9e2015-07-17 20:08:261260 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1261 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111262
[email protected]e9ba4472008-09-14 15:42:431263 // Manual subframe navigations just get the current entry cloned so the user
1264 // can go back or forward to it. The actual subframe information will be
1265 // stored in the page state for each of those entries. This happens out of
1266 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091267 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1268 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381269
avi25764702015-06-23 15:43:371270 scoped_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081271 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis96fc55082015-06-13 06:42:381272 // Make sure new_entry takes ownership of frame_entry in a scoped_refptr.
1273 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
creis6d752c32015-11-10 01:59:431274 rfh->frame_tree_node()->frame_tree_node_id(), params.frame_unique_name,
creis8b5cd4c2015-06-19 00:11:081275 params.item_sequence_number, params.document_sequence_number,
1276 rfh->GetSiteInstance(), params.url, params.referrer);
creis96fc55082015-06-13 06:42:381277 new_entry = GetLastCommittedEntry()->CloneAndReplace(rfh->frame_tree_node(),
1278 frame_entry);
creise062d542015-08-25 02:01:551279
1280 // TODO(creis): Make sure the last committed entry always has the subframe
1281 // entry to replace, and CHECK(frame_entry->HasOneRef). For now, we might
1282 // not find the entry to replace, and new_entry will be deleted when it goes
1283 // out of scope. See https://crbug.com/522193.
creis96fc55082015-06-13 06:42:381284 } else {
1285 new_entry = GetLastCommittedEntry()->Clone();
1286 }
1287
[email protected]36fc0392011-12-25 03:59:511288 new_entry->SetPageID(params.page_id);
dcheng36b6aec92015-12-26 06:16:361289 InsertOrReplaceEntry(std::move(new_entry), false);
[email protected]e9ba4472008-09-14 15:42:431290}
1291
[email protected]d202a7c2012-01-04 07:53:471292bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321293 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221294 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291295 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1296 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1297
[email protected]e9ba4472008-09-14 15:42:431298 // We're guaranteed to have a previously committed entry, and we now need to
1299 // handle navigation inside of a subframe in it without creating a new entry.
1300 DCHECK(GetLastCommittedEntry());
1301
avi98405c22015-05-21 20:47:061302 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511303 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
caitkp420384c62015-05-28 14:34:511304
creis3cdc3b02015-05-29 23:00:471305 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1306 // a history auto" navigation. Update the last committed index accordingly.
1307 // If we don't recognize the |nav_entry_id|, it might be either a pending
1308 // entry for a transfer or a recently pruned entry. We'll handle it below.
1309 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061310 // Make sure that a subframe commit isn't changing the main frame's
1311 // origin. Otherwise the renderer process may be confused, leading to a
1312 // URL spoof. We can't check the path since that may change
1313 // (https://crbug.com/373041).
1314 if (GetLastCommittedEntry()->GetURL().GetOrigin() !=
1315 GetEntryAtIndex(entry_index)->GetURL().GetOrigin()) {
1316 // TODO(creis): This is unexpectedly being encountered in practice. If
1317 // you encounter this in practice, please post details to
1318 // https://crbug.com/486916. Once that's resolved, we'll change this to
1319 // kill the renderer process with bad_message::NC_AUTO_SUBFRAME.
1320 NOTREACHED() << "Unexpected main frame origin change on AUTO_SUBFRAME.";
1321 }
creis3cdc3b02015-05-29 23:00:471322
1323 // TODO(creis): Update the FrameNavigationEntry in --site-per-process.
avi98405c22015-05-21 20:47:061324 last_committed_entry_index_ = entry_index;
1325 DiscardNonCommittedEntriesInternal();
1326 return true;
1327 }
[email protected]e9ba4472008-09-14 15:42:431328 }
[email protected]f233e4232013-02-23 00:55:141329
nickd30fd962015-07-27 21:51:081330 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121331 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1332 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121333 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081334 last_committed->AddOrUpdateFrameEntry(
creis6d752c32015-11-10 01:59:431335 rfh->frame_tree_node(), params.frame_unique_name,
1336 params.item_sequence_number, params.document_sequence_number,
1337 rfh->GetSiteInstance(), params.url, params.referrer, params.page_state);
creis3cdc3b02015-05-29 23:00:471338
1339 // Cross-process subframe navigations may leave a pending entry around.
creisefbbbb52015-06-01 19:28:541340 // Clear it if it's actually for the subframe.
creis3cdc3b02015-05-29 23:00:471341 // TODO(creis): Don't use pending entries for subframe navigations.
creisefbbbb52015-06-01 19:28:541342 // See https://crbug.com/495161.
1343 if (pending_entry_ &&
1344 pending_entry_->frame_tree_node_id() ==
1345 rfh->frame_tree_node()->frame_tree_node_id()) {
1346 DiscardPendingEntry(false);
1347 }
creis625a0c7d2015-03-24 23:17:121348 }
1349
[email protected]f233e4232013-02-23 00:55:141350 // We do not need to discard the pending entry in this case, since we will
1351 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431352 return false;
1353}
1354
[email protected]d202a7c2012-01-04 07:53:471355int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231356 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031357 for (size_t i = 0; i < entries_.size(); ++i) {
1358 if (entries_[i].get() == entry)
1359 return i;
1360 }
1361 return -1;
[email protected]765b35502008-08-21 00:51:201362}
1363
avidb7d1d22015-06-08 21:21:501364// There are two general cases where a navigation is "in page":
1365// 1. A fragment navigation, in which the url is kept the same except for the
1366// reference fragment.
1367// 2. A history API navigation (pushState and replaceState). This case is
1368// always in-page, but the urls are not guaranteed to match excluding the
1369// fragment. The relevant spec allows pushState/replaceState to any URL on
1370// the same origin.
1371// However, due to reloads, even identical urls are *not* guaranteed to be
1372// in-page navigations, we have to trust the renderer almost entirely.
1373// The one thing we do know is that cross-origin navigations will *never* be
1374// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1375// and assume the renderer is malicious if a cross-origin navigation claims to
1376// be in-page.
[email protected]ce760d742012-08-30 22:31:101377bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121378 const GURL& url,
1379 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231380 RenderFrameHost* rfh) const {
avidb7d1d22015-06-08 21:21:501381 GURL last_committed_url;
1382 if (rfh->GetParent()) {
1383 last_committed_url = rfh->GetLastCommittedURL();
1384 } else {
1385 NavigationEntry* last_committed = GetLastCommittedEntry();
1386 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1387 // might Blink say that a navigation is in-page yet there be no last-
1388 // committed entry?
1389 if (!last_committed)
1390 return false;
1391 last_committed_url = last_committed->GetURL();
1392 }
1393
1394 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creisdc004e02015-11-20 21:28:471395 const url::Origin& committed_origin = static_cast<RenderFrameHostImpl*>(rfh)
1396 ->frame_tree_node()
1397 ->current_origin();
avidb7d1d22015-06-08 21:21:501398 bool is_same_origin = last_committed_url.is_empty() ||
1399 // TODO(japhet): We should only permit navigations
1400 // originating from about:blank to be in-page if the
1401 // about:blank is the first document that frame loaded.
1402 // We don't have sufficient information to identify
1403 // that case at the moment, so always allow about:blank
1404 // for now.
1405 last_committed_url == GURL(url::kAboutBlankURL) ||
1406 last_committed_url.GetOrigin() == url.GetOrigin() ||
1407 !prefs.web_security_enabled ||
1408 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471409 committed_origin.scheme() == url::kFileScheme);
avidb7d1d22015-06-08 21:21:501410 if (!is_same_origin && renderer_says_in_page) {
1411 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1412 bad_message::NC_IN_PAGE_NAVIGATION);
1413 }
1414 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431415}
1416
[email protected]d202a7c2012-01-04 07:53:471417void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501418 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471419 const NavigationControllerImpl& source =
1420 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571421 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551422 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571423
[email protected]a26023822011-12-29 00:23:551424 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571425 return; // Nothing new to do.
1426
1427 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551428 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571429
[email protected]fdac6ade2013-07-20 01:06:301430 for (SessionStorageNamespaceMap::const_iterator it =
1431 source.session_storage_namespace_map_.begin();
1432 it != source.session_storage_namespace_map_.end();
1433 ++it) {
1434 SessionStorageNamespaceImpl* source_namespace =
1435 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1436 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1437 }
[email protected]4e6419c2010-01-15 04:50:341438
[email protected]2ca1ea662012-10-04 02:26:361439 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571440
1441 // Copy the max page id map from the old tab to the new tab. This ensures
1442 // that new and existing navigations in the tab's current SiteInstances
1443 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571444 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571445}
1446
[email protected]d202a7c2012-01-04 07:53:471447void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571448 NavigationController* temp,
1449 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161450 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011451 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161452
[email protected]d202a7c2012-01-04 07:53:471453 NavigationControllerImpl* source =
1454 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251455
avi2b177592014-12-10 02:08:021456 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011457 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251458
[email protected]474f8512013-05-31 22:31:161459 // We now have one entry, possibly with a new pending entry. Ensure that
1460 // adding the entries from source won't put us over the limit.
1461 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571462 if (!replace_entry)
1463 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251464
[email protected]47e020a2010-10-15 14:43:371465 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021466 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161467 // since it has not committed in source.
1468 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251469 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551470 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251471 else
1472 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571473
1474 // Ignore the source's current entry if merging with replacement.
1475 // TODO(davidben): This should preserve entries forward of the current
1476 // too. http://crbug.com/317872
1477 if (replace_entry && max_source_index > 0)
1478 max_source_index--;
1479
[email protected]47e020a2010-10-15 14:43:371480 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251481
1482 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551483 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141484
avi2b177592014-12-10 02:08:021485 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1486 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571487
avi2b177592014-12-10 02:08:021488 // Copy the max page id map from the old tab to the new tab. This ensures that
1489 // new and existing navigations in the tab's current SiteInstances are
1490 // identified properly.
creis3da03872015-02-20 21:12:321491 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avib7348942015-12-25 20:57:101492 int32_t site_max_page_id =
avi2b177592014-12-10 02:08:021493 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571494 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021495 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1496 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421497 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251498}
1499
[email protected]79368982013-11-13 01:11:011500bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161501 // If there is no last committed entry, we cannot prune. Even if there is a
1502 // pending entry, it may not commit, leaving this WebContents blank, despite
1503 // possibly giving it new entries via CopyStateFromAndPrune.
1504 if (last_committed_entry_index_ == -1)
1505 return false;
[email protected]9350602e2013-02-26 23:27:441506
[email protected]474f8512013-05-31 22:31:161507 // We cannot prune if there is a pending entry at an existing entry index.
1508 // It may not commit, so we have to keep the last committed entry, and thus
1509 // there is no sensible place to keep the pending entry. It is ok to have
1510 // a new pending entry, which can optionally commit as a new navigation.
1511 if (pending_entry_index_ != -1)
1512 return false;
1513
1514 // We should not prune if we are currently showing a transient entry.
1515 if (transient_entry_index_ != -1)
1516 return false;
1517
1518 return true;
1519}
1520
[email protected]79368982013-11-13 01:11:011521void NavigationControllerImpl::PruneAllButLastCommitted() {
1522 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161523
avi2b177592014-12-10 02:08:021524 DCHECK_EQ(0, last_committed_entry_index_);
1525 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441526
avi2b177592014-12-10 02:08:021527 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1528 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441529}
1530
[email protected]79368982013-11-13 01:11:011531void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161532 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011533 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261534
[email protected]474f8512013-05-31 22:31:161535 // Erase all entries but the last committed entry. There may still be a
1536 // new pending entry after this.
1537 entries_.erase(entries_.begin(),
1538 entries_.begin() + last_committed_entry_index_);
1539 entries_.erase(entries_.begin() + 1, entries_.end());
1540 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261541}
1542
[email protected]15f46dc2013-01-24 05:40:241543void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101544 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241545}
1546
[email protected]d1198fd2012-08-13 22:50:191547void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301548 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211549 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191550 if (!session_storage_namespace)
1551 return;
1552
1553 // We can't overwrite an existing SessionStorage without violating spec.
1554 // Attempts to do so may give a tab access to another tab's session storage
1555 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301556 bool successful_insert = session_storage_namespace_map_.insert(
1557 make_pair(partition_id,
1558 static_cast<SessionStorageNamespaceImpl*>(
1559 session_storage_namespace)))
1560 .second;
1561 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191562}
1563
avib7348942015-12-25 20:57:101564void NavigationControllerImpl::SetMaxRestoredPageID(int32_t max_id) {
[email protected]71fde352011-12-29 03:29:561565 max_restored_page_id_ = max_id;
1566}
1567
avib7348942015-12-25 20:57:101568int32_t NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561569 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551570}
1571
[email protected]aa62afd2014-04-22 19:22:461572bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461573 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101574 !GetLastCommittedEntry() &&
1575 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461576}
1577
[email protected]a26023822011-12-29 00:23:551578SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301579NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1580 std::string partition_id;
1581 if (instance) {
1582 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1583 // this if statement so |instance| must not be NULL.
1584 partition_id =
1585 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1586 browser_context_, instance->GetSiteURL());
1587 }
[email protected]d1198fd2012-08-13 22:50:191588
[email protected]fdac6ade2013-07-20 01:06:301589 // TODO(ajwong): Should this use the |partition_id| directly rather than
1590 // re-lookup via |instance|? http://crbug.com/142685
1591 StoragePartition* partition =
michaelnbacbcbd2016-02-09 00:32:031592 BrowserContext::GetStoragePartition(browser_context_, instance);
1593 DOMStorageContextWrapper* context_wrapper =
1594 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1595
1596 SessionStorageNamespaceMap::const_iterator it =
1597 session_storage_namespace_map_.find(partition_id);
1598 if (it != session_storage_namespace_map_.end()) {
1599 // Ensure that this namespace actually belongs to this partition.
1600 DCHECK(static_cast<SessionStorageNamespaceImpl*>(it->second.get())->
1601 IsFromContext(context_wrapper));
1602 return it->second.get();
1603 }
1604
1605 // Create one if no one has accessed session storage for this partition yet.
[email protected]fdac6ade2013-07-20 01:06:301606 SessionStorageNamespaceImpl* session_storage_namespace =
michaelnbacbcbd2016-02-09 00:32:031607 new SessionStorageNamespaceImpl(context_wrapper);
[email protected]fdac6ade2013-07-20 01:06:301608 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1609
1610 return session_storage_namespace;
1611}
1612
1613SessionStorageNamespace*
1614NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1615 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1616 return GetSessionStorageNamespace(NULL);
1617}
1618
1619const SessionStorageNamespaceMap&
1620NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1621 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551622}
[email protected]d202a7c2012-01-04 07:53:471623
1624bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561625 return needs_reload_;
1626}
[email protected]a26023822011-12-29 00:23:551627
[email protected]46bb5e9c2013-10-03 22:16:471628void NavigationControllerImpl::SetNeedsReload() {
1629 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541630
1631 if (last_committed_entry_index_ != -1) {
1632 entries_[last_committed_entry_index_]->SetTransitionType(
1633 ui::PAGE_TRANSITION_RELOAD);
1634 }
[email protected]46bb5e9c2013-10-03 22:16:471635}
1636
[email protected]d202a7c2012-01-04 07:53:471637void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551638 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121639 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311640
1641 DiscardNonCommittedEntries();
1642
1643 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121644 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311645 last_committed_entry_index_--;
1646}
1647
[email protected]d202a7c2012-01-04 07:53:471648void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471649 bool transient = transient_entry_index_ != -1;
1650 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291651
[email protected]cbab76d2008-10-13 22:42:471652 // If there was a transient entry, invalidate everything so the new active
1653 // entry state is shown.
1654 if (transient) {
[email protected]7f924832014-08-09 05:57:221655 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471656 }
initial.commit09911bf2008-07-26 23:55:291657}
1658
creis3da03872015-02-20 21:12:321659NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251660 return pending_entry_;
1661}
1662
[email protected]d202a7c2012-01-04 07:53:471663int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551664 return pending_entry_index_;
1665}
1666
avi25764702015-06-23 15:43:371667void NavigationControllerImpl::InsertOrReplaceEntry(
1668 scoped_ptr<NavigationEntryImpl> entry, bool replace) {
Sylvain Defresnec6ccc77d2014-09-19 10:19:351669 DCHECK(entry->GetTransitionType() != ui::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201670
avi5cad4912015-06-19 05:25:441671 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1672 // need to keep continuity with the pending entry, so copy the pending entry's
1673 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1674 // then the renderer navigated on its own, independent of the pending entry,
1675 // so don't copy anything.
1676 if (pending_entry_ && pending_entry_index_ == -1)
1677 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201678
[email protected]cbab76d2008-10-13 22:42:471679 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201680
1681 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221682
1683 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181684 if (replace && current_size > 0) {
avib7348942015-12-25 20:57:101685 int32_t page_id = entry->GetPageID();
creisee17e932015-07-17 17:56:221686
dcheng36b6aec92015-12-26 06:16:361687 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221688
1689 // This is a new page ID, so we need everybody to know about it.
1690 delegate_->UpdateMaxPageID(page_id);
1691 return;
1692 }
[email protected]765b35502008-08-21 00:51:201693
creis37979a62015-08-04 19:48:181694 // We shouldn't see replace == true when there's no committed entries.
1695 DCHECK(!replace);
1696
[email protected]765b35502008-08-21 00:51:201697 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451698 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311699 // last_committed_entry_index_ must be updated here since calls to
1700 // NotifyPrunedEntries() below may re-enter and we must make sure
1701 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491702 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311703 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491704 num_pruned++;
[email protected]765b35502008-08-21 00:51:201705 entries_.pop_back();
1706 current_size--;
1707 }
[email protected]c12bf1a12008-09-17 16:28:491708 if (num_pruned > 0) // Only notify if we did prune something.
1709 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201710 }
1711
[email protected]944822b2012-03-02 20:57:251712 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201713
avib7348942015-12-25 20:57:101714 int32_t page_id = entry->GetPageID();
dcheng36b6aec92015-12-26 06:16:361715 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201716 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431717
1718 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371719 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291720}
1721
[email protected]944822b2012-03-02 20:57:251722void NavigationControllerImpl::PruneOldestEntryIfFull() {
1723 if (entries_.size() >= max_entry_count()) {
1724 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021725 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251726 RemoveEntryAtIndex(0);
1727 NotifyPrunedEntries(this, true, 1);
1728 }
1729}
1730
[email protected]d202a7c2012-01-04 07:53:471731void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011732 needs_reload_ = false;
1733
[email protected]83c2e232011-10-07 21:36:461734 // If we were navigating to a slow-to-commit page, and the user performs
1735 // a session history navigation to the last committed page, RenderViewHost
1736 // will force the throbber to start, but WebKit will essentially ignore the
1737 // navigation, and won't send a message to stop the throbber. To prevent this
1738 // from happening, we drop the navigation here and stop the slow-to-commit
1739 // page from loading (which would normally happen during the navigation).
1740 if (pending_entry_index_ != -1 &&
1741 pending_entry_index_ == last_committed_entry_index_ &&
1742 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231743 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511744 (entries_[pending_entry_index_]->GetTransitionType() &
Sylvain Defresnec6ccc77d2014-09-19 10:19:351745 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571746 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121747
1748 // If an interstitial page is showing, we want to close it to get back
1749 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571750 if (delegate_->GetInterstitialPage())
1751 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121752
[email protected]83c2e232011-10-07 21:36:461753 DiscardNonCommittedEntries();
1754 return;
1755 }
1756
[email protected]6a13a6c2011-12-20 21:47:121757 // If an interstitial page is showing, the previous renderer is blocked and
1758 // cannot make new requests. Unblock (and disable) it to allow this
1759 // navigation to succeed. The interstitial will stay visible until the
1760 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571761 if (delegate_->GetInterstitialPage()) {
1762 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131763 CancelForNavigation();
1764 }
[email protected]6a13a6c2011-12-20 21:47:121765
initial.commit09911bf2008-07-26 23:55:291766 // For session history navigations only the pending_entry_index_ is set.
1767 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341768 CHECK_NE(pending_entry_index_, -1);
avif16f85a72015-11-13 18:25:031769 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291770 }
1771
creiscf40d9c2015-09-11 18:20:541772 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1773 // renderer process is not live, unless it is the initial navigation of the
1774 // tab.
1775 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1776 // TODO(creis): Find the RVH for the correct frame.
1777 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1778 !IsInitialNavigation()) {
1779 DiscardNonCommittedEntries();
1780 return;
1781 }
1782 }
1783
[email protected]40fd3032014-02-28 22:16:281784 // This call does not support re-entrancy. See http://crbug.com/347742.
1785 CHECK(!in_navigate_to_pending_entry_);
1786 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301787 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281788 in_navigate_to_pending_entry_ = false;
1789
1790 if (!success)
[email protected]cbab76d2008-10-13 22:42:471791 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291792}
1793
creis4e2ecb72015-06-20 00:46:301794bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1795 ReloadType reload_type) {
1796 DCHECK(pending_entry_);
1797 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1798
1799 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1800 // navigate the main frame or use the main frame's FrameNavigationEntry to
1801 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081802 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301803 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1804 FrameTreeNode* frame = root;
1805 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1806 if (ftn_id != -1) {
1807 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1808 DCHECK(frame);
1809 }
1810 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1811 reload_type, false);
1812 }
1813
1814 // In --site-per-process, we compare FrameNavigationEntries to see which
1815 // frames in the tree need to be navigated.
1816 FrameLoadVector same_document_loads;
1817 FrameLoadVector different_document_loads;
1818 if (GetLastCommittedEntry()) {
1819 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1820 }
1821
1822 if (same_document_loads.empty() && different_document_loads.empty()) {
1823 // If we don't have any frames to navigate at this point, either
1824 // (1) there is no previous history entry to compare against, or
1825 // (2) we were unable to match any frames by name. In the first case,
1826 // doing a different document navigation to the root item is the only valid
1827 // thing to do. In the second case, we should have been able to find a
1828 // frame to navigate based on names if this were a same document
1829 // navigation, so we can safely assume this is the different document case.
1830 different_document_loads.push_back(
1831 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1832 }
1833
1834 // If all the frame loads fail, we will discard the pending entry.
1835 bool success = false;
1836
1837 // Send all the same document frame loads before the different document loads.
1838 for (const auto& item : same_document_loads) {
1839 FrameTreeNode* frame = item.first;
1840 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1841 reload_type, true);
1842 }
1843 for (const auto& item : different_document_loads) {
1844 FrameTreeNode* frame = item.first;
1845 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1846 reload_type, false);
1847 }
1848 return success;
1849}
1850
1851void NavigationControllerImpl::FindFramesToNavigate(
1852 FrameTreeNode* frame,
1853 FrameLoadVector* same_document_loads,
1854 FrameLoadVector* different_document_loads) {
1855 DCHECK(pending_entry_);
1856 DCHECK_GE(last_committed_entry_index_, 0);
1857 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
1858 FrameNavigationEntry* old_item =
1859 GetLastCommittedEntry()->GetFrameEntry(frame);
1860 if (!new_item)
1861 return;
1862
1863 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:561864 // sequence number in the same SiteInstance. Newly restored items may not have
1865 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:301866 if (!old_item ||
1867 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:561868 (new_item->site_instance() != nullptr &&
1869 new_item->site_instance() != old_item->site_instance())) {
creis4e2ecb72015-06-20 00:46:301870 if (old_item &&
creis4e2ecb72015-06-20 00:46:301871 new_item->document_sequence_number() ==
1872 old_item->document_sequence_number()) {
1873 same_document_loads->push_back(std::make_pair(frame, new_item));
1874 } else {
1875 different_document_loads->push_back(std::make_pair(frame, new_item));
avib3b47ab2016-01-22 20:53:581876 // For a different document, the subframes will be destroyed, so there's
1877 // no need to consider them.
1878 return;
creis4e2ecb72015-06-20 00:46:301879 }
creis4e2ecb72015-06-20 00:46:301880 }
1881
1882 for (size_t i = 0; i < frame->child_count(); i++) {
1883 FindFramesToNavigate(frame->child_at(i), same_document_loads,
1884 different_document_loads);
1885 }
1886}
1887
[email protected]d202a7c2012-01-04 07:53:471888void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211889 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271890 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401891
[email protected]2db9bd72012-04-13 20:20:561892 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401893 // location bar will have up-to-date information about the security style
1894 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131895 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401896
[email protected]7f924832014-08-09 05:57:221897 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]ec6c05f2013-10-23 18:41:571898 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461899
[email protected]b0f724c2013-09-05 04:21:131900 // TODO(avi): Remove. http://crbug.com/170921
1901 NotificationDetails notification_details =
1902 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211903 NotificationService::current()->Notify(
1904 NOTIFICATION_NAV_ENTRY_COMMITTED,
1905 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401906 notification_details);
initial.commit09911bf2008-07-26 23:55:291907}
1908
initial.commit09911bf2008-07-26 23:55:291909// static
[email protected]d202a7c2012-01-04 07:53:471910size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231911 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1912 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211913 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231914}
1915
[email protected]d202a7c2012-01-04 07:53:471916void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221917 if (is_active && needs_reload_)
1918 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291919}
1920
[email protected]d202a7c2012-01-04 07:53:471921void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291922 if (!needs_reload_)
1923 return;
1924
initial.commit09911bf2008-07-26 23:55:291925 // Calling Reload() results in ignoring state, and not loading.
1926 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1927 // cached state.
avicc872d7242015-08-19 21:26:341928 if (pending_entry_) {
1929 NavigateToPendingEntry(NO_RELOAD);
1930 } else if (last_committed_entry_index_ != -1) {
1931 pending_entry_index_ = last_committed_entry_index_;
1932 NavigateToPendingEntry(NO_RELOAD);
1933 } else {
1934 // If there is something to reload, the successful reload will clear the
1935 // |needs_reload_| flag. Otherwise, just do it here.
1936 needs_reload_ = false;
1937 }
initial.commit09911bf2008-07-26 23:55:291938}
1939
avi47179332015-05-20 21:01:111940void NavigationControllerImpl::NotifyEntryChanged(
1941 const NavigationEntry* entry) {
[email protected]8ff00d72012-10-23 19:12:211942 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091943 det.changed_entry = entry;
avi47179332015-05-20 21:01:111944 det.index = GetIndexOfEntry(
1945 NavigationEntryImpl::FromNavigationEntry(entry));
[email protected]8ff00d72012-10-23 19:12:211946 NotificationService::current()->Notify(
1947 NOTIFICATION_NAV_ENTRY_CHANGED,
1948 Source<NavigationController>(this),
1949 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291950}
1951
[email protected]d202a7c2012-01-04 07:53:471952void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361953 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551954 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361955 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291956
avib7348942015-12-25 20:57:101957 SetMaxRestoredPageID(static_cast<int32_t>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291958
1959 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291960}
[email protected]765b35502008-08-21 00:51:201961
[email protected]d202a7c2012-01-04 07:53:471962void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
avi45a72532015-04-07 21:01:451963 DiscardPendingEntry(false);
[email protected]b12eb222013-09-10 00:11:481964 DiscardTransientEntry();
1965}
1966
avi45a72532015-04-07 21:01:451967void NavigationControllerImpl::DiscardPendingEntry(bool was_failure) {
[email protected]40fd3032014-02-28 22:16:281968 // It is not safe to call DiscardPendingEntry while NavigateToEntry is in
[email protected]e7fee58a2014-04-11 19:51:401969 // progress, since this will cause a use-after-free. (We only allow this
1970 // when the tab is being destroyed for shutdown, since it won't return to
1971 // NavigateToEntry in that case.) http://crbug.com/347742.
1972 CHECK(!in_navigate_to_pending_entry_ || delegate_->IsBeingDestroyed());
[email protected]40fd3032014-02-28 22:16:281973
avi45a72532015-04-07 21:01:451974 if (was_failure && pending_entry_) {
1975 failed_pending_entry_id_ = pending_entry_->GetUniqueID();
1976 failed_pending_entry_should_replace_ =
1977 pending_entry_->should_replace_entry();
1978 } else {
1979 failed_pending_entry_id_ = 0;
1980 }
1981
[email protected]765b35502008-08-21 00:51:201982 if (pending_entry_index_ == -1)
1983 delete pending_entry_;
1984 pending_entry_ = NULL;
1985 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471986}
1987
[email protected]d202a7c2012-01-04 07:53:471988void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471989 if (transient_entry_index_ == -1)
1990 return;
[email protected]a0e69262009-06-03 19:08:481991 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181992 if (last_committed_entry_index_ > transient_entry_index_)
1993 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471994 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201995}
1996
avib7348942015-12-25 20:57:101997int NavigationControllerImpl::GetEntryIndexWithPageID(SiteInstance* instance,
1998 int32_t page_id) const {
[email protected]765b35502008-08-21 00:51:201999 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:112000 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:512001 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:202002 return i;
2003 }
2004 return -1;
2005}
[email protected]cbab76d2008-10-13 22:42:472006
avi7c6f35e2015-05-08 17:52:382007int NavigationControllerImpl::GetEntryIndexWithUniqueID(
2008 int nav_entry_id) const {
2009 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
2010 if (entries_[i]->GetUniqueID() == nav_entry_id)
2011 return i;
2012 }
2013 return -1;
2014}
2015
creis3da03872015-02-20 21:12:322016NavigationEntryImpl* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:472017 if (transient_entry_index_ == -1)
2018 return NULL;
avif16f85a72015-11-13 18:25:032019 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:472020}
[email protected]e1cd5452010-08-26 18:03:252021
avi25764702015-06-23 15:43:372022void NavigationControllerImpl::SetTransientEntry(
2023 scoped_ptr<NavigationEntry> entry) {
[email protected]0b684262013-02-20 02:18:212024 // Discard any current transient entry, we can only have one at a time.
2025 int index = 0;
2026 if (last_committed_entry_index_ != -1)
2027 index = last_committed_entry_index_ + 1;
2028 DiscardTransientEntry();
avi25764702015-06-23 15:43:372029 entries_.insert(entries_.begin() + index,
dcheng36b6aec92015-12-26 06:16:362030 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
[email protected]0b684262013-02-20 02:18:212031 transient_entry_index_ = index;
[email protected]7f924832014-08-09 05:57:222032 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]0b684262013-02-20 02:18:212033}
2034
[email protected]d202a7c2012-01-04 07:53:472035void NavigationControllerImpl::InsertEntriesFrom(
2036 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:252037 int max_index) {
[email protected]a26023822011-12-29 00:23:552038 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:252039 size_t insert_index = 0;
2040 for (int i = 0; i < max_index; i++) {
creisef4a0cb2015-03-12 19:14:352041 // When cloning a tab, copy all entries except interstitial pages.
avi25764702015-06-23 15:43:372042 if (source.entries_[i]->GetPageType() != PAGE_TYPE_INTERSTITIAL) {
creisef4a0cb2015-03-12 19:14:352043 // TODO(creis): Once we start sharing FrameNavigationEntries between
2044 // NavigationEntries, it will not be safe to share them with another tab.
2045 // Must have a version of Clone that recreates them.
[email protected]e1cd5452010-08-26 18:03:252046 entries_.insert(entries_.begin() + insert_index++,
dcheng36b6aec92015-12-26 06:16:362047 source.entries_[i]->Clone());
[email protected]e1cd5452010-08-26 18:03:252048 }
2049 }
2050}
[email protected]c5b88d82012-10-06 17:03:332051
2052void NavigationControllerImpl::SetGetTimestampCallbackForTest(
2053 const base::Callback<base::Time()>& get_timestamp_callback) {
2054 get_timestamp_callback_ = get_timestamp_callback;
2055}
[email protected]8ff00d72012-10-23 19:12:212056
2057} // namespace content