blob: 071cec8e4bb631303f26594f1e37aa84de15020e [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
creis03b48002015-11-04 00:54:56151// Helper method for FrameTree::ForEach to set the nav_entry_id on each current
152// RenderFrameHost in the tree.
153bool SetFrameNavEntryID(int nav_entry_id, FrameTreeNode* node) {
154 node->current_frame_host()->set_nav_entry_id(nav_entry_id);
155 return true;
156}
157
[email protected]e9ba4472008-09-14 15:42:43158} // namespace
159
[email protected]d202a7c2012-01-04 07:53:47160// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29161
[email protected]23a918b2014-07-15 09:51:36162const size_t kMaxEntryCountForTestingNotSet = static_cast<size_t>(-1);
[email protected]9b51970d2011-12-09 23:10:23163
[email protected]765b35502008-08-21 00:51:20164// static
[email protected]d202a7c2012-01-04 07:53:47165size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23166 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20167
[email protected]e6fec472013-05-14 05:29:02168// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20169// when testing.
170static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29171
[email protected]71fde352011-12-29 03:29:56172// static
avi25764702015-06-23 15:43:37173scoped_ptr<NavigationEntry> NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56174 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20175 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35176 ui::PageTransition transition,
[email protected]71fde352011-12-29 03:29:56177 bool is_renderer_initiated,
178 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20179 BrowserContext* browser_context) {
creis94a977f62015-02-18 23:51:05180 // Fix up the given URL before letting it be rewritten, so that any minor
181 // cleanup (e.g., removing leading dots) will not lead to a virtual URL.
182 GURL dest_url(url);
183 BrowserURLHandlerImpl::GetInstance()->FixupURLBeforeRewrite(&dest_url,
184 browser_context);
185
[email protected]71fde352011-12-29 03:29:56186 // Allow the browser URL handler to rewrite the URL. This will, for example,
187 // remove "view-source:" from the beginning of the URL to get the URL that
188 // will actually be loaded. This real URL won't be shown to the user, just
189 // used internally.
creis94a977f62015-02-18 23:51:05190 GURL loaded_url(dest_url);
[email protected]71fde352011-12-29 03:29:56191 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31192 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56193 &loaded_url, browser_context, &reverse_on_redirect);
194
195 NavigationEntryImpl* entry = new NavigationEntryImpl(
196 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56197 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56198 -1,
199 loaded_url,
200 referrer,
[email protected]fcf75d42013-12-03 20:11:26201 base::string16(),
[email protected]71fde352011-12-29 03:29:56202 transition,
203 is_renderer_initiated);
creis94a977f62015-02-18 23:51:05204 entry->SetVirtualURL(dest_url);
205 entry->set_user_typed_url(dest_url);
[email protected]71fde352011-12-29 03:29:56206 entry->set_update_virtual_url_with_url(reverse_on_redirect);
207 entry->set_extra_headers(extra_headers);
avi25764702015-06-23 15:43:37208 return make_scoped_ptr(entry);
[email protected]71fde352011-12-29 03:29:56209}
210
[email protected]cdcb1dee2012-01-04 00:46:20211// static
212void NavigationController::DisablePromptOnRepost() {
213 g_check_for_repost = false;
214}
215
[email protected]c5b88d82012-10-06 17:03:33216base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
217 base::Time t) {
218 // If |t| is between the water marks, we're in a run of duplicates
219 // or just getting out of it, so increase the high-water mark to get
220 // a time that probably hasn't been used before and return it.
221 if (low_water_mark_ <= t && t <= high_water_mark_) {
222 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
223 return high_water_mark_;
224 }
225
226 // Otherwise, we're clear of the last duplicate run, so reset the
227 // water marks.
228 low_water_mark_ = high_water_mark_ = t;
229 return t;
230}
231
[email protected]d202a7c2012-01-04 07:53:47232NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57233 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19234 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37235 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20236 pending_entry_(NULL),
avi45a72532015-04-07 21:01:45237 failed_pending_entry_id_(0),
238 failed_pending_entry_should_replace_(false),
[email protected]765b35502008-08-21 00:51:20239 last_committed_entry_index_(-1),
240 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47241 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57242 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29243 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22244 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57245 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09246 is_initial_navigation_(true),
[email protected]40fd3032014-02-28 22:16:28247 in_navigate_to_pending_entry_(false),
[email protected]c5b88d82012-10-06 17:03:33248 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31249 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]d1581d72013-11-05 19:11:26250 screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37251 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29252}
253
[email protected]d202a7c2012-01-04 07:53:47254NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47255 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29256}
257
[email protected]d202a7c2012-01-04 07:53:47258WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57259 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32260}
261
[email protected]d202a7c2012-01-04 07:53:47262BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55263 return browser_context_;
264}
265
[email protected]d202a7c2012-01-04 07:53:47266void NavigationControllerImpl::SetBrowserContext(
267 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20268 browser_context_ = browser_context;
269}
270
[email protected]d202a7c2012-01-04 07:53:47271void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30272 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36273 RestoreType type,
avif16f85a72015-11-13 18:25:03274 std::vector<scoped_ptr<NavigationEntry>>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57275 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55276 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57277 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14278 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57279
[email protected]ce3fa3c2009-04-20 19:55:57280 needs_reload_ = true;
avif16f85a72015-11-13 18:25:03281 entries_.reserve(entries->size());
282 for (auto& entry : *entries)
dcheng36b6aec92015-12-26 06:16:36283 entries_.push_back(
284 NavigationEntryImpl::FromNavigationEntry(std::move(entry)));
avif16f85a72015-11-13 18:25:03285
286 // At this point, the |entries| is full of empty scoped_ptrs, so it can be
287 // cleared out safely.
288 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57289
290 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36291 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57292}
293
[email protected]d202a7c2012-01-04 07:53:47294void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16295 ReloadInternal(check_for_repost, RELOAD);
296}
kinuko1be5023c2015-12-16 02:31:57297void NavigationControllerImpl::ReloadToRefreshContent(bool check_for_repost) {
298 if (base::CommandLine::ForCurrentProcess()->HasSwitch(
299 switches::kEnableNonValidatingReloadOnRefreshContent)) {
300 ReloadInternal(check_for_repost, NO_RELOAD);
301 } else {
302 ReloadInternal(check_for_repost, RELOAD);
303 }
304}
[email protected]d202a7c2012-01-04 07:53:47305void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16306 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
307}
[email protected]7c16976c2012-08-04 02:38:23308void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
309 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
310}
megjablond5ac7d52015-10-22 23:56:12311void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
312 ReloadInternal(check_for_repost, RELOAD_DISABLE_LOFI_MODE);
313}
[email protected]1ccb3568d2010-02-19 10:51:16314
[email protected]d202a7c2012-01-04 07:53:47315void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
316 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36317 if (transient_entry_index_ != -1) {
318 // If an interstitial is showing, treat a reload as a navigation to the
319 // transient entry's URL.
creis3da03872015-02-20 21:12:32320 NavigationEntryImpl* transient_entry = GetTransientEntry();
[email protected]6286a3792013-10-09 04:03:27321 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36322 return;
[email protected]6286a3792013-10-09 04:03:27323 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21324 Referrer(),
Sylvain Defresnec6ccc77d2014-09-19 10:19:35325 ui::PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27326 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47327 return;
[email protected]669e0ba2012-08-30 23:57:36328 }
[email protected]cbab76d2008-10-13 22:42:47329
[email protected]59167c22013-06-03 18:07:32330 NavigationEntryImpl* entry = NULL;
331 int current_index = -1;
332
333 // If we are reloading the initial navigation, just use the current
334 // pending entry. Otherwise look up the current entry.
335 if (IsInitialNavigation() && pending_entry_) {
336 entry = pending_entry_;
337 // The pending entry might be in entries_ (e.g., after a Clone), so we
338 // should also update the current_index.
339 current_index = pending_entry_index_;
340 } else {
341 DiscardNonCommittedEntriesInternal();
342 current_index = GetCurrentEntryIndex();
343 if (current_index != -1) {
creis3da03872015-02-20 21:12:32344 entry = GetEntryAtIndex(current_index);
[email protected]59167c22013-06-03 18:07:32345 }
[email protected]979a4bc2013-04-24 01:27:15346 }
[email protected]241db352013-04-22 18:04:05347
[email protected]59167c22013-06-03 18:07:32348 // If we are no where, then we can't reload. TODO(darin): We should add a
349 // CanReload method.
350 if (!entry)
351 return;
352
[email protected]cdcb1dee2012-01-04 00:46:20353 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32354 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30355 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07356 // they really want to do this. If they do, the dialog will call us back
357 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57358 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02359
[email protected]106a0812010-03-18 00:15:12360 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57361 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29362 } else {
[email protected]59167c22013-06-03 18:07:32363 if (!IsInitialNavigation())
364 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26365
[email protected]bcd904482012-02-01 01:54:22366 // If we are reloading an entry that no longer belongs to the current
367 // site instance (for example, refreshing a page for just installed app),
368 // the reload must happen in a new process.
369 // The new entry must have a new page_id and site instance, so it behaves
370 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30371 // Tabs that are discarded due to low memory conditions may not have a site
372 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32373 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]fb4cc8e2013-12-17 17:56:21374 // Permit reloading guests without further checks.
paulmeyer1aeba7aa2015-06-16 18:25:10375 bool is_for_guests_only = site_instance && site_instance->HasProcess() &&
376 site_instance->GetProcess()->IsForGuestsOnly();
377 if (!is_for_guests_only && site_instance &&
[email protected]7e58cb272012-03-30 21:22:30378 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22379 // Create a navigation entry that resembles the current one, but do not
avi0b7df5b2015-07-18 23:16:46380 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22381 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
382 CreateNavigationEntry(
383 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
avi25764702015-06-23 15:43:37384 false, entry->extra_headers(), browser_context_).release());
[email protected]c3b3d952012-01-31 12:52:26385
[email protected]11535962012-02-09 21:02:10386 // Mark the reload type as NO_RELOAD, so navigation will not be considered
387 // a reload in the renderer.
388 reload_type = NavigationController::NO_RELOAD;
389
[email protected]e2caa032012-11-15 23:29:18390 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22391 pending_entry_ = nav_entry;
avi0b7df5b2015-07-18 23:16:46392 DCHECK_EQ(-1, pending_entry_index_);
[email protected]bcd904482012-02-01 01:54:22393 } else {
[email protected]59167c22013-06-03 18:07:32394 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22395 pending_entry_index_ = current_index;
396
397 // The title of the page being reloaded might have been removed in the
398 // meanwhile, so we need to revert to the default title upon reload and
399 // invalidate the previously cached title (SetTitle will do both).
400 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26401 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22402
Sylvain Defresnec6ccc77d2014-09-19 10:19:35403 pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22404 }
405
[email protected]1ccb3568d2010-02-19 10:51:16406 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29407 }
408}
409
[email protected]d202a7c2012-01-04 07:53:47410void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12411 DCHECK(pending_reload_ != NO_RELOAD);
412 pending_reload_ = NO_RELOAD;
413}
414
[email protected]d202a7c2012-01-04 07:53:47415void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12416 if (pending_reload_ == NO_RELOAD) {
417 NOTREACHED();
418 } else {
419 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02420 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12421 }
422}
423
[email protected]cd2e15742013-03-08 04:08:31424bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09425 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11426}
427
creis10a4ab72015-10-13 17:22:40428bool NavigationControllerImpl::IsInitialBlankNavigation() const {
429 // TODO(creis): Once we create a NavigationEntry for the initial blank page,
430 // we'll need to check for entry count 1 and restore_type RESTORE_NONE (to
431 // exclude the cloned tab case).
432 return IsInitialNavigation() && GetEntryCount() == 0;
433}
434
[email protected]d202a7c2012-01-04 07:53:47435NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
avib7348942015-12-25 20:57:10436 SiteInstance* instance,
437 int32_t page_id) const {
[email protected]7f0005a2009-04-15 03:25:11438 int index = GetEntryIndexWithPageID(instance, page_id);
avif16f85a72015-11-13 18:25:03439 return (index != -1) ? entries_[index].get() : nullptr;
[email protected]765b35502008-08-21 00:51:20440}
441
avi254eff02015-07-01 08:27:58442NavigationEntryImpl*
443NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
444 int index = GetEntryIndexWithUniqueID(nav_entry_id);
avif16f85a72015-11-13 18:25:03445 return (index != -1) ? entries_[index].get() : nullptr;
avi254eff02015-07-01 08:27:58446}
447
avi25764702015-06-23 15:43:37448void NavigationControllerImpl::LoadEntry(
449 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]765b35502008-08-21 00:51:20450 // When navigating to a new page, we don't know for sure if we will actually
451 // end up leaving the current page. The new page load could for example
452 // result in a download or a 'no content' response (e.g., a mailto: URL).
dcheng36b6aec92015-12-26 06:16:36453 SetPendingEntry(std::move(entry));
[email protected]59167c22013-06-03 18:07:32454 NavigateToPendingEntry(NO_RELOAD);
455}
456
avi25764702015-06-23 15:43:37457void NavigationControllerImpl::SetPendingEntry(
458 scoped_ptr<NavigationEntryImpl> entry) {
[email protected]cbab76d2008-10-13 22:42:47459 DiscardNonCommittedEntriesInternal();
avi25764702015-06-23 15:43:37460 pending_entry_ = entry.release();
[email protected]8ff00d72012-10-23 19:12:21461 NotificationService::current()->Notify(
462 NOTIFICATION_NAV_ENTRY_PENDING,
463 Source<NavigationController>(this),
avi25764702015-06-23 15:43:37464 Details<NavigationEntry>(pending_entry_));
[email protected]765b35502008-08-21 00:51:20465}
466
creis3da03872015-02-20 21:12:32467NavigationEntryImpl* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47468 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03469 return entries_[transient_entry_index_].get();
[email protected]cbab76d2008-10-13 22:42:47470 if (pending_entry_)
471 return pending_entry_;
472 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20473}
474
creis3da03872015-02-20 21:12:32475NavigationEntryImpl* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19476 if (transient_entry_index_ != -1)
avif16f85a72015-11-13 18:25:03477 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32478 // The pending entry is safe to return for new (non-history), browser-
479 // initiated navigations. Most renderer-initiated navigations should not
480 // show the pending entry, to prevent URL spoof attacks.
481 //
482 // We make an exception for renderer-initiated navigations in new tabs, as
483 // long as no other page has tried to access the initial empty document in
484 // the new tab. If another page modifies this blank page, a URL spoof is
485 // possible, so we must stop showing the pending entry.
[email protected]59167c22013-06-03 18:07:32486 bool safe_to_show_pending =
487 pending_entry_ &&
488 // Require a new navigation.
avi0dca04d2015-01-26 20:21:09489 pending_entry_index_ == -1 &&
[email protected]59167c22013-06-03 18:07:32490 // Require either browser-initiated or an unmodified new tab.
[email protected]aa62afd2014-04-22 19:22:46491 (!pending_entry_->is_renderer_initiated() || IsUnmodifiedBlankTab());
[email protected]59167c22013-06-03 18:07:32492
493 // Also allow showing the pending entry for history navigations in a new tab,
494 // such as Ctrl+Back. In this case, no existing page is visible and no one
495 // can script the new tab before it commits.
496 if (!safe_to_show_pending &&
497 pending_entry_ &&
avi0dca04d2015-01-26 20:21:09498 pending_entry_index_ != -1 &&
[email protected]59167c22013-06-03 18:07:32499 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34500 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32501 safe_to_show_pending = true;
502
503 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19504 return pending_entry_;
505 return GetLastCommittedEntry();
506}
507
[email protected]d202a7c2012-01-04 07:53:47508int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47509 if (transient_entry_index_ != -1)
510 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20511 if (pending_entry_index_ != -1)
512 return pending_entry_index_;
513 return last_committed_entry_index_;
514}
515
creis3da03872015-02-20 21:12:32516NavigationEntryImpl* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20517 if (last_committed_entry_index_ == -1)
518 return NULL;
avif16f85a72015-11-13 18:25:03519 return entries_[last_committed_entry_index_].get();
[email protected]765b35502008-08-21 00:51:20520}
521
[email protected]d202a7c2012-01-04 07:53:47522bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57523 const std::string& mime_type = delegate_->GetContentsMimeType();
rsleevic327b48f82015-04-30 02:03:25524 bool is_viewable_mime_type =
525 mime_util::IsSupportedNonImageMimeType(mime_type) &&
servolkf3955532015-05-16 00:01:59526 !media::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27527 NavigationEntry* visible_entry = GetVisibleEntry();
528 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57529 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16530}
531
[email protected]d202a7c2012-01-04 07:53:47532int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55533 return last_committed_entry_index_;
534}
535
[email protected]d202a7c2012-01-04 07:53:47536int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25537 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55538 return static_cast<int>(entries_.size());
539}
540
creis3da03872015-02-20 21:12:32541NavigationEntryImpl* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25542 int index) const {
avi25764702015-06-23 15:43:37543 if (index < 0 || index >= GetEntryCount())
544 return nullptr;
545
avif16f85a72015-11-13 18:25:03546 return entries_[index].get();
[email protected]022af742011-12-28 18:37:25547}
548
creis3da03872015-02-20 21:12:32549NavigationEntryImpl* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25550 int offset) const {
avi057ce1492015-06-29 15:59:47551 return GetEntryAtIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20552}
553
[email protected]9ba14052012-06-22 23:50:03554int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46555 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03556}
557
[email protected]9677a3c2012-12-22 04:18:58558void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10559 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58560}
561
[email protected]1a3f5312013-04-26 21:00:10562void NavigationControllerImpl::SetScreenshotManager(
avi67081d0ae2015-07-27 18:25:46563 scoped_ptr<NavigationEntryScreenshotManager> manager) {
564 if (manager.get())
dcheng36b6aec92015-12-26 06:16:36565 screenshot_manager_ = std::move(manager);
avi67081d0ae2015-07-27 18:25:46566 else
567 screenshot_manager_.reset(new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58568}
569
[email protected]d202a7c2012-01-04 07:53:47570bool NavigationControllerImpl::CanGoBack() const {
avi56e40c92015-08-27 00:11:22571 return CanGoToOffset(-1);
[email protected]765b35502008-08-21 00:51:20572}
573
[email protected]d202a7c2012-01-04 07:53:47574bool NavigationControllerImpl::CanGoForward() const {
avi56e40c92015-08-27 00:11:22575 return CanGoToOffset(1);
[email protected]765b35502008-08-21 00:51:20576}
577
[email protected]9ba14052012-06-22 23:50:03578bool NavigationControllerImpl::CanGoToOffset(int offset) const {
579 int index = GetIndexForOffset(offset);
580 return index >= 0 && index < GetEntryCount();
581}
582
[email protected]d202a7c2012-01-04 07:53:47583void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20584 if (!CanGoBack()) {
585 NOTREACHED();
586 return;
587 }
588
589 // Base the navigation on where we are now...
590 int current_index = GetCurrentEntryIndex();
591
[email protected]cbab76d2008-10-13 22:42:47592 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20593
594 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25595 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35596 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51597 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35598 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16599 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20600}
601
[email protected]d202a7c2012-01-04 07:53:47602void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20603 if (!CanGoForward()) {
604 NOTREACHED();
605 return;
606 }
607
[email protected]cbab76d2008-10-13 22:42:47608 bool transient = (transient_entry_index_ != -1);
609
[email protected]765b35502008-08-21 00:51:20610 // Base the navigation on where we are now...
611 int current_index = GetCurrentEntryIndex();
612
[email protected]cbab76d2008-10-13 22:42:47613 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20614
[email protected]cbab76d2008-10-13 22:42:47615 pending_entry_index_ = current_index;
616 // If there was a transient entry, we removed it making the current index
617 // the next page.
618 if (!transient)
619 pending_entry_index_++;
620
[email protected]022af742011-12-28 18:37:25621 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35622 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51623 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35624 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16625 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20626}
627
[email protected]d202a7c2012-01-04 07:53:47628void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20629 if (index < 0 || index >= static_cast<int>(entries_.size())) {
630 NOTREACHED();
631 return;
632 }
633
[email protected]cbab76d2008-10-13 22:42:47634 if (transient_entry_index_ != -1) {
635 if (index == transient_entry_index_) {
636 // Nothing to do when navigating to the transient.
637 return;
638 }
639 if (index > transient_entry_index_) {
640 // Removing the transient is goint to shift all entries by 1.
641 index--;
642 }
643 }
644
645 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20646
647 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25648 entries_[pending_entry_index_]->SetTransitionType(
Sylvain Defresnec6ccc77d2014-09-19 10:19:35649 ui::PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51650 entries_[pending_entry_index_]->GetTransitionType() |
Sylvain Defresnec6ccc77d2014-09-19 10:19:35651 ui::PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16652 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20653}
654
[email protected]d202a7c2012-01-04 07:53:47655void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03656 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20657 return;
658
[email protected]9ba14052012-06-22 23:50:03659 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20660}
661
[email protected]41374f12013-07-24 02:49:28662bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
663 if (index == last_committed_entry_index_ ||
664 index == pending_entry_index_)
665 return false;
[email protected]6a13a6c2011-12-20 21:47:12666
[email protected]43032342011-03-21 14:10:31667 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28668 return true;
[email protected]cbab76d2008-10-13 22:42:47669}
670
[email protected]d202a7c2012-01-04 07:53:47671void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23672 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32673 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31674 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51675 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
676 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32677 }
678}
679
[email protected]d202a7c2012-01-04 07:53:47680void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47681 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21682 const Referrer& referrer,
Sylvain Defresnec6ccc77d2014-09-19 10:19:35683 ui::PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47684 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47685 LoadURLParams params(url);
686 params.referrer = referrer;
687 params.transition_type = transition;
688 params.extra_headers = extra_headers;
689 LoadURLWithParams(params);
690}
691
692void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
naskob8744d22014-08-28 17:07:43693 TRACE_EVENT1("browser,navigation",
694 "NavigationControllerImpl::LoadURLWithParams",
695 "url", params.url.possibly_invalid_spec());
[email protected]47752982014-07-29 08:01:43696 if (HandleDebugURL(params.url, params.transition_type)) {
697 // If Telemetry is running, allow the URL load to proceed as if it's
698 // unhandled, otherwise Telemetry can't tell if Navigation completed.
avi83883c82014-12-23 00:08:49699 if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
[email protected]47752982014-07-29 08:01:43700 cc::switches::kEnableGpuBenchmarking))
701 return;
702 }
[email protected]8bf1048012012-02-08 01:22:18703
[email protected]cf002332012-08-14 19:17:47704 // Checks based on params.load_type.
705 switch (params.load_type) {
706 case LOAD_TYPE_DEFAULT:
707 break;
708 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e8ca69c2014-05-07 15:31:19709 if (!params.url.SchemeIs(url::kHttpScheme) &&
710 !params.url.SchemeIs(url::kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47711 NOTREACHED() << "Http post load must use http(s) scheme.";
712 return;
713 }
714 break;
715 case LOAD_TYPE_DATA:
[email protected]cca6f392014-05-28 21:32:26716 if (!params.url.SchemeIs(url::kDataScheme)) {
[email protected]cf002332012-08-14 19:17:47717 NOTREACHED() << "Data load must use data scheme.";
718 return;
719 }
720 break;
721 default:
722 NOTREACHED();
723 break;
724 };
[email protected]e47ae9472011-10-13 19:48:34725
[email protected]e47ae9472011-10-13 19:48:34726 // The user initiated a load, we don't need to reload anymore.
727 needs_reload_ = false;
728
[email protected]cf002332012-08-14 19:17:47729 bool override = false;
730 switch (params.override_user_agent) {
731 case UA_OVERRIDE_INHERIT:
732 override = ShouldKeepOverride(GetLastCommittedEntry());
733 break;
734 case UA_OVERRIDE_TRUE:
735 override = true;
736 break;
737 case UA_OVERRIDE_FALSE:
738 override = false;
739 break;
740 default:
741 NOTREACHED();
742 break;
[email protected]d1ef81d2012-07-24 11:39:36743 }
744
avi25764702015-06-23 15:43:37745 scoped_ptr<NavigationEntryImpl> entry;
creis4e2ecb72015-06-20 00:46:30746
747 // For subframes, create a pending entry with a corresponding frame entry.
748 int frame_tree_node_id = params.frame_tree_node_id;
749 if (frame_tree_node_id != -1 || !params.frame_name.empty()) {
750 FrameTreeNode* node =
751 params.frame_tree_node_id != -1
752 ? delegate_->GetFrameTree()->FindByID(params.frame_tree_node_id)
753 : delegate_->GetFrameTree()->FindByName(params.frame_name);
754 if (node && !node->IsMainFrame()) {
755 DCHECK(GetLastCommittedEntry());
756
757 // Update the FTN ID to use below in case we found a named frame.
758 frame_tree_node_id = node->frame_tree_node_id();
759
760 // In --site-per-process, create an identical NavigationEntry with a
761 // new FrameNavigationEntry for the target subframe.
nickd30fd962015-07-27 21:51:08762 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30763 entry = GetLastCommittedEntry()->Clone();
764 entry->SetPageID(-1);
creis6d752c32015-11-10 01:59:43765 entry->AddOrUpdateFrameEntry(node, "", -1, -1, nullptr, params.url,
creis4e2ecb72015-06-20 00:46:30766 params.referrer, PageState());
767 }
768 }
creis6a93a812015-04-24 23:13:17769 }
creis4e2ecb72015-06-20 00:46:30770
771 // Otherwise, create a pending entry for the main frame.
772 if (!entry) {
773 entry = NavigationEntryImpl::FromNavigationEntry(CreateNavigationEntry(
774 params.url, params.referrer, params.transition_type,
775 params.is_renderer_initiated, params.extra_headers, browser_context_));
776 }
777 // Set the FTN ID (only used in non-site-per-process, for tests).
778 entry->set_frame_tree_node_id(frame_tree_node_id);
lfg9ef7d2d2014-12-15 22:32:30779 entry->set_source_site_instance(
780 static_cast<SiteInstanceImpl*>(params.source_site_instance.get()));
[email protected]f8872902013-10-30 03:18:57781 if (params.redirect_chain.size() > 0)
[email protected]c1982ff2014-04-23 03:37:21782 entry->SetRedirectChain(params.redirect_chain);
avib6cc1562015-02-12 19:56:39783 // Don't allow an entry replacement if there is no entry to replace.
784 // http://crbug.com/457149
785 if (params.should_replace_current_entry && entries_.size() > 0)
[email protected]e2caa032012-11-15 23:29:18786 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13787 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47788 entry->SetIsOverridingUserAgent(override);
789 entry->set_transferred_global_request_id(
790 params.transferred_global_request_id);
[email protected]d1ef81d2012-07-24 11:39:36791
clamy8451aa62015-01-23 16:56:08792#if defined(OS_ANDROID)
793 if (params.intent_received_timestamp > 0) {
794 entry->set_intent_received_timestamp(
795 base::TimeTicks() +
796 base::TimeDelta::FromMilliseconds(params.intent_received_timestamp));
797 }
qinmin976d4d92015-08-07 18:32:39798 entry->set_has_user_gesture(params.has_user_gesture);
clamy8451aa62015-01-23 16:56:08799#endif
800
[email protected]cf002332012-08-14 19:17:47801 switch (params.load_type) {
802 case LOAD_TYPE_DEFAULT:
803 break;
804 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
805 entry->SetHasPostData(true);
806 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46807 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47808 break;
809 case LOAD_TYPE_DATA:
810 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
811 entry->SetVirtualURL(params.virtual_url_for_data_url);
mnaganovbf087422015-12-16 05:10:03812#if defined(OS_ANDROID)
813 entry->SetDataURLAsString(params.data_url_as_string);
814#endif
[email protected]951a64832012-10-11 16:26:37815 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47816 break;
817 default:
818 NOTREACHED();
819 break;
820 };
[email protected]132e281a2012-07-31 18:32:44821
dcheng36b6aec92015-12-26 06:16:36822 LoadEntry(std::move(entry));
[email protected]132e281a2012-07-31 18:32:44823}
824
[email protected]d202a7c2012-01-04 07:53:47825bool NavigationControllerImpl::RendererDidNavigate(
creis3da03872015-02-20 21:12:32826 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22827 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]8ff00d72012-10-23 19:12:21828 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31829 is_initial_navigation_ = false;
830
[email protected]0e8db942008-09-24 21:21:48831 // Save the previous state before we clobber it.
832 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51833 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55834 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48835 } else {
836 details->previous_url = GURL();
837 details->previous_entry_index = -1;
838 }
[email protected]ecd9d8702008-08-28 22:10:17839
fdegans9caf66a2015-07-30 21:10:42840 // If there is a pending entry at this point, it should have a SiteInstance,
841 // except for restored entries.
842 DCHECK(pending_entry_index_ == -1 ||
843 pending_entry_->site_instance() ||
844 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
845 if (pending_entry_ &&
846 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
847 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]e9ba4472008-09-14 15:42:43848
[email protected]bcd904482012-02-01 01:54:22849 // If we are doing a cross-site reload, we need to replace the existing
850 // navigation entry, not add another entry to the history. This has the side
avi45a72532015-04-07 21:01:45851 // effect of removing forward browsing history, if such existed. Or if we are
852 // doing a cross-site redirect navigation, we will do a similar thing.
853 //
854 // If this is an error load, we may have already removed the pending entry
855 // when we got the notice of the load failure. If so, look at the copy of the
856 // pending parameters that were saved.
857 if (params.url_is_unreachable && failed_pending_entry_id_ != 0) {
858 details->did_replace_entry = failed_pending_entry_should_replace_;
859 } else {
860 details->did_replace_entry = pending_entry_ &&
861 pending_entry_->should_replace_entry();
862 }
[email protected]bcd904482012-02-01 01:54:22863
[email protected]e9ba4472008-09-14 15:42:43864 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]27dd82fd2014-03-03 22:11:43865 details->type = ClassifyNavigation(rfh, params);
[email protected]4bf3522c2010-08-19 21:00:20866
[email protected]b9d4dfdc2013-08-08 00:25:12867 // is_in_page must be computed before the entry gets committed.
avidb7d1d22015-06-08 21:21:50868 details->is_in_page = IsURLInPageNavigation(
[email protected]5cfbddc2014-06-23 23:52:23869 params.url, params.was_within_same_page, rfh);
[email protected]b9d4dfdc2013-08-08 00:25:12870
[email protected]0e8db942008-09-24 21:21:48871 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21872 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43873 RendererDidNavigateToNewPage(rfh, params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43874 break;
[email protected]8ff00d72012-10-23 19:12:21875 case NAVIGATION_TYPE_EXISTING_PAGE:
avi259dc792015-07-07 04:42:36876 details->did_replace_entry = details->is_in_page;
[email protected]27dd82fd2014-03-03 22:11:43877 RendererDidNavigateToExistingPage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43878 break;
[email protected]8ff00d72012-10-23 19:12:21879 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]27dd82fd2014-03-03 22:11:43880 RendererDidNavigateToSamePage(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43881 break;
[email protected]8ff00d72012-10-23 19:12:21882 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43883 RendererDidNavigateNewSubframe(rfh, params);
[email protected]e9ba4472008-09-14 15:42:43884 break;
[email protected]8ff00d72012-10-23 19:12:21885 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]27dd82fd2014-03-03 22:11:43886 if (!RendererDidNavigateAutoSubframe(rfh, params))
[email protected]e9ba4472008-09-14 15:42:43887 return false;
888 break;
[email protected]8ff00d72012-10-23 19:12:21889 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49890 // If a pending navigation was in progress, this canceled it. We should
891 // discard it and make sure it is removed from the URL bar. After that,
892 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43893 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49894 if (pending_entry_) {
895 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57896 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49897 }
[email protected]e9ba4472008-09-14 15:42:43898 return false;
899 default:
900 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20901 }
902
[email protected]688aa65c62012-09-28 04:32:22903 // At this point, we know that the navigation has just completed, so
904 // record the time.
905 //
906 // TODO(akalin): Use "sane time" as described in
907 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33908 base::Time timestamp =
909 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
910 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22911 << timestamp.ToInternalValue();
912
[email protected]f233e4232013-02-23 00:55:14913 // We should not have a pending entry anymore. Clear it again in case any
914 // error cases above forgot to do so.
915 DiscardNonCommittedEntriesInternal();
916
[email protected]e9ba4472008-09-14 15:42:43917 // All committed entries should have nonempty content state so WebKit doesn't
918 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04919 DCHECK(params.page_state.IsValid());
creis3da03872015-02-20 21:12:32920 NavigationEntryImpl* active_entry = GetLastCommittedEntry();
[email protected]688aa65c62012-09-28 04:32:22921 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44922 active_entry->SetHttpStatusCode(params.http_status_code);
nickd30fd962015-07-27 21:51:08923 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:30924 // Update the frame-specific PageState.
925 FrameNavigationEntry* frame_entry =
926 active_entry->GetFrameEntry(rfh->frame_tree_node());
creise062d542015-08-25 02:01:55927 // We may not find a frame_entry in some cases; ignore the PageState if so.
928 // TODO(creis): Remove the "if" once https://crbug.com/522193 is fixed.
929 if (frame_entry)
930 frame_entry->set_page_state(params.page_state);
creis4e2ecb72015-06-20 00:46:30931 } else {
932 active_entry->SetPageState(params.page_state);
933 }
[email protected]c1982ff2014-04-23 03:37:21934 active_entry->SetRedirectChain(params.redirects);
[email protected]132e281a2012-07-31 18:32:44935
[email protected]d6def3d2014-05-19 18:55:32936 // Use histogram to track memory impact of redirect chain because it's now
937 // not cleared for committed entries.
938 size_t redirect_chain_size = 0;
939 for (size_t i = 0; i < params.redirects.size(); ++i) {
940 redirect_chain_size += params.redirects[i].spec().length();
941 }
942 UMA_HISTOGRAM_COUNTS("Navigation.RedirectChainSize", redirect_chain_size);
943
[email protected]97d8f0d2013-10-29 16:49:21944 // Once it is committed, we no longer need to track several pieces of state on
945 // the entry.
946 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13947
[email protected]49bd30e62011-03-22 20:12:59948 // The active entry's SiteInstance should match our SiteInstance.
[email protected]a1b99262013-12-27 21:56:22949 // TODO(creis): This check won't pass for subframes until we create entries
950 // for subframe navigations.
avi39c1edd32015-06-04 20:06:00951 if (!rfh->GetParent())
creis77c9aa32015-09-25 19:59:42952 CHECK_EQ(active_entry->site_instance(), rfh->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59953
[email protected]b26de072013-02-23 02:33:44954 // Remember the bindings the renderer process has at this point, so that
955 // we do not grant this entry additional bindings if we come back to it.
creis3da03872015-02-20 21:12:32956 active_entry->SetBindings(rfh->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44957
[email protected]e9ba4472008-09-14 15:42:43958 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00959 details->entry = active_entry;
avi39c1edd32015-06-04 20:06:00960 details->is_main_frame = !rfh->GetParent();
[email protected]2e39d2e2009-02-19 18:41:31961 details->http_status_code = params.http_status_code;
estarka5635c42015-07-14 00:06:53962
963 // Deserialize the security info and kill the renderer if
964 // deserialization fails. The navigation will continue with default
965 // SSLStatus values.
966 if (!DeserializeSecurityInfo(params.security_info, &details->ssl_status)) {
967 bad_message::ReceivedBadMessage(
968 rfh->GetProcess(),
969 bad_message::WC_RENDERER_DID_NAVIGATE_BAD_SECURITY_INFO);
970 }
971
[email protected]93f230e02011-06-01 14:40:00972 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29973
creis03b48002015-11-04 00:54:56974 // Update the nav_entry_id for each RenderFrameHost in the tree, so that each
975 // one knows the latest NavigationEntry it is showing (whether it has
976 // committed anything in this navigation or not). This allows things like
977 // state and title updates from RenderFrames to apply to the latest relevant
978 // NavigationEntry.
979 delegate_->GetFrameTree()->ForEach(
980 base::Bind(&SetFrameNavEntryID, active_entry->GetUniqueID()));
[email protected]e9ba4472008-09-14 15:42:43981 return true;
initial.commit09911bf2008-07-26 23:55:29982}
983
[email protected]8ff00d72012-10-23 19:12:21984NavigationType NavigationControllerImpl::ClassifyNavigation(
creis3da03872015-02-20 21:12:32985 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:22986 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) const {
avi7c6f35e2015-05-08 17:52:38987 if (params.did_create_new_entry) {
988 // A new entry. We may or may not have a pending entry for the page, and
989 // this may or may not be the main frame.
avi39c1edd32015-06-04 20:06:00990 if (!rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:38991 return NAVIGATION_TYPE_NEW_PAGE;
992 }
993
994 // When this is a new subframe navigation, we should have a committed page
995 // in which it's a subframe. This may not be the case when an iframe is
996 // navigated on a popup navigated to about:blank (the iframe would be
997 // written into the popup by script on the main page). For these cases,
998 // there isn't any navigation stuff we can do, so just ignore it.
avib1986b12015-06-11 20:21:23999 if (!GetLastCommittedEntry())
avi7c6f35e2015-05-08 17:52:381000 return NAVIGATION_TYPE_NAV_IGNORE;
1001
1002 // Valid subframe navigation.
1003 return NAVIGATION_TYPE_NEW_SUBFRAME;
1004 }
1005
1006 // We only clear the session history when navigating to a new page.
1007 DCHECK(!params.history_list_was_cleared);
1008
avi39c1edd32015-06-04 20:06:001009 if (rfh->GetParent()) {
avi7c6f35e2015-05-08 17:52:381010 // All manual subframes would be did_create_new_entry and handled above, so
1011 // we know this is auto.
1012 if (GetLastCommittedEntry()) {
1013 return NAVIGATION_TYPE_AUTO_SUBFRAME;
1014 } else {
1015 // We ignore subframes created in non-committed pages; we'd appreciate if
1016 // people stopped doing that.
1017 return NAVIGATION_TYPE_NAV_IGNORE;
1018 }
1019 }
1020
1021 if (params.nav_entry_id == 0) {
1022 // This is a renderer-initiated navigation (nav_entry_id == 0), but didn't
1023 // create a new page.
1024
1025 // Just like above in the did_create_new_entry case, it's possible to
1026 // scribble onto an uncommitted page. Again, there isn't any navigation
1027 // stuff that we can do, so ignore it here as well.
avi3a5b8f32015-05-28 17:50:231028 NavigationEntry* last_committed = GetLastCommittedEntry();
avib1986b12015-06-11 20:21:231029 if (!last_committed)
avi7c6f35e2015-05-08 17:52:381030 return NAVIGATION_TYPE_NAV_IGNORE;
1031
avi259dc792015-07-07 04:42:361032 // This is history.replaceState(), history.reload(), or a client-side
1033 // redirect.
1034 return NAVIGATION_TYPE_EXISTING_PAGE;
avi7c6f35e2015-05-08 17:52:381035 }
1036
1037 if (pending_entry_ && pending_entry_index_ == -1 &&
1038 pending_entry_->GetUniqueID() == params.nav_entry_id) {
1039 // In this case, we have a pending entry for a load of a new URL but Blink
creis77c9aa32015-09-25 19:59:421040 // didn't do a new navigation (params.did_create_new_entry). First check to
1041 // make sure Blink didn't treat a new cross-process navigation as inert, and
1042 // thus set params.did_create_new_entry to false. In that case, we must
1043 // treat it as NEW since the SiteInstance doesn't match the entry.
1044 if (GetLastCommittedEntry()->site_instance() != rfh->GetSiteInstance())
1045 return NAVIGATION_TYPE_NEW_PAGE;
1046
1047 // Otherwise, this happens when you press enter in the URL bar to reload. We
1048 // will create a pending entry, but Blink will convert it to a reload since
1049 // it's the same page and not create a new entry for it (the user doesn't
1050 // want to have a new back/forward entry when they do this). Therefore we
1051 // want to just ignore the pending entry and go back to where we were (the
1052 // "existing entry").
1053 // TODO(creis,avi): Eliminate SAME_PAGE in https://crbug.com/536102.
avi7c6f35e2015-05-08 17:52:381054 return NAVIGATION_TYPE_SAME_PAGE;
1055 }
1056
1057 if (params.intended_as_new_entry) {
1058 // This was intended to be a navigation to a new entry but the pending entry
1059 // got cleared in the meanwhile. Classify as EXISTING_PAGE because we may or
1060 // may not have a pending entry.
1061 return NAVIGATION_TYPE_EXISTING_PAGE;
1062 }
1063
1064 if (params.url_is_unreachable && failed_pending_entry_id_ != 0 &&
1065 params.nav_entry_id == failed_pending_entry_id_) {
1066 // If the renderer was going to a new pending entry that got cleared because
1067 // of an error, this is the case of the user trying to retry a failed load
1068 // by pressing return. Classify as EXISTING_PAGE because we probably don't
1069 // have a pending entry.
1070 return NAVIGATION_TYPE_EXISTING_PAGE;
1071 }
1072
1073 // Now we know that the notification is for an existing page. Find that entry.
1074 int existing_entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
1075 if (existing_entry_index == -1) {
avi5cad4912015-06-19 05:25:441076 // The renderer has committed a navigation to an entry that no longer
1077 // exists. Because the renderer is showing that page, resurrect that entry.
1078 return NAVIGATION_TYPE_NEW_PAGE;
avi7c6f35e2015-05-08 17:52:381079 }
1080
avi7c6f35e2015-05-08 17:52:381081 // Since we weeded out "new" navigations above, we know this is an existing
1082 // (back/forward) navigation.
1083 return NAVIGATION_TYPE_EXISTING_PAGE;
1084}
1085
[email protected]d202a7c2012-01-04 07:53:471086void NavigationControllerImpl::RendererDidNavigateToNewPage(
creis3da03872015-02-20 21:12:321087 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221088 const FrameHostMsg_DidCommitProvisionalLoad_Params& params,
[email protected]a1b99262013-12-27 21:56:221089 bool replace_entry) {
avi25764702015-06-23 15:43:371090 scoped_ptr<NavigationEntryImpl> new_entry;
[email protected]f1eb87a2011-05-06 17:49:411091 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:341092 // Only make a copy of the pending entry if it is appropriate for the new page
1093 // that was just loaded. We verify this at a coarse grain by checking that
avi5cad4912015-06-19 05:25:441094 // the SiteInstance hasn't been assigned to something else, and by making sure
1095 // that the pending entry was intended as a new entry (rather than being a
1096 // history navigation that was interrupted by an unrelated, renderer-initiated
1097 // navigation).
1098 if (pending_entry_ && pending_entry_index_ == -1 &&
[email protected]6dd86ab2013-02-27 00:30:341099 (!pending_entry_->site_instance() ||
[email protected]27dd82fd2014-03-03 22:11:431100 pending_entry_->site_instance() == rfh->GetSiteInstance())) {
creisef4a0cb2015-03-12 19:14:351101 new_entry = pending_entry_->Clone();
[email protected]e9ba4472008-09-14 15:42:431102
[email protected]f1eb87a2011-05-06 17:49:411103 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431104 } else {
avi25764702015-06-23 15:43:371105 new_entry = make_scoped_ptr(new NavigationEntryImpl);
[email protected]f8f93eb2012-09-25 03:06:241106
1107 // Find out whether the new entry needs to update its virtual URL on URL
1108 // change and set up the entry accordingly. This is needed to correctly
1109 // update the virtual URL when replaceState is called after a pushState.
1110 GURL url = params.url;
1111 bool needs_update = false;
[email protected]47752982014-07-29 08:01:431112 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1113 &url, browser_context_, &needs_update);
[email protected]f8f93eb2012-09-25 03:06:241114 new_entry->set_update_virtual_url_with_url(needs_update);
1115
[email protected]f1eb87a2011-05-06 17:49:411116 // When navigating to a new page, give the browser URL handler a chance to
1117 // update the virtual URL based on the new URL. For example, this is needed
1118 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1119 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241120 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431121 }
1122
wjmaclean7431bb22015-02-19 14:53:431123 // Don't use the page type from the pending entry. Some interstitial page
1124 // may have set the type to interstitial. Once we commit, however, the page
1125 // type must always be normal or error.
1126 new_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1127 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041128 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411129 if (update_virtual_url)
avi25764702015-06-23 15:43:371130 UpdateVirtualURLToURL(new_entry.get(), params.url);
[email protected]022af742011-12-28 18:37:251131 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511132 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251133 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331134 new_entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431135 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511136 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051137 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231138 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221139 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431140
creis8b5cd4c2015-06-19 00:11:081141 // Update the FrameNavigationEntry for new main frame commits.
1142 FrameNavigationEntry* frame_entry =
1143 new_entry->GetFrameEntry(rfh->frame_tree_node());
creis6d752c32015-11-10 01:59:431144 frame_entry->set_frame_unique_name(params.frame_unique_name);
creis8b5cd4c2015-06-19 00:11:081145 frame_entry->set_item_sequence_number(params.item_sequence_number);
1146 frame_entry->set_document_sequence_number(params.document_sequence_number);
1147
[email protected]ff64b3e2014-05-31 04:07:331148 // history.pushState() is classified as a navigation to a new page, but
1149 // sets was_within_same_page to true. In this case, we already have the
[email protected]3a868f212014-08-09 10:41:191150 // title and favicon available, so set them immediately.
1151 if (params.was_within_same_page && GetLastCommittedEntry()) {
[email protected]ff64b3e2014-05-31 04:07:331152 new_entry->SetTitle(GetLastCommittedEntry()->GetTitle());
[email protected]3a868f212014-08-09 10:41:191153 new_entry->GetFavicon() = GetLastCommittedEntry()->GetFavicon();
1154 }
[email protected]ff64b3e2014-05-31 04:07:331155
[email protected]60d6cca2013-04-30 08:47:131156 DCHECK(!params.history_list_was_cleared || !replace_entry);
1157 // The browser requested to clear the session history when it initiated the
1158 // navigation. Now we know that the renderer has updated its state accordingly
1159 // and it is safe to also clear the browser side history.
1160 if (params.history_list_was_cleared) {
1161 DiscardNonCommittedEntriesInternal();
1162 entries_.clear();
1163 last_committed_entry_index_ = -1;
1164 }
1165
dcheng36b6aec92015-12-26 06:16:361166 InsertOrReplaceEntry(std::move(new_entry), replace_entry);
[email protected]e9ba4472008-09-14 15:42:431167}
1168
[email protected]d202a7c2012-01-04 07:53:471169void NavigationControllerImpl::RendererDidNavigateToExistingPage(
creis3da03872015-02-20 21:12:321170 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221171 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
[email protected]e9ba4472008-09-14 15:42:431172 // We should only get here for main frame navigations.
avi39c1edd32015-06-04 20:06:001173 DCHECK(!rfh->GetParent());
[email protected]e9ba4472008-09-14 15:42:431174
avicbdc4c12015-07-01 16:07:111175 NavigationEntryImpl* entry;
1176 if (params.intended_as_new_entry) {
1177 // This was intended as a new entry but the pending entry was lost in the
1178 // meanwhile and no new page was created. We are stuck at the last committed
1179 // entry.
1180 entry = GetLastCommittedEntry();
1181 } else if (params.nav_entry_id) {
1182 // This is a browser-initiated navigation (back/forward/reload).
1183 entry = GetEntryWithUniqueID(params.nav_entry_id);
1184 } else {
1185 // This is renderer-initiated. The only kinds of renderer-initated
1186 // navigations that are EXISTING_PAGE are reloads and location.replace,
1187 // which land us at the last committed entry.
1188 entry = GetLastCommittedEntry();
1189 }
1190 DCHECK(entry);
[email protected]e9ba4472008-09-14 15:42:431191
[email protected]5ccd4dc2012-10-24 02:28:141192 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431193 entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1194 : PAGE_TYPE_NORMAL);
[email protected]ad23a092011-12-28 07:02:041195 entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201196 entry->SetReferrer(params.referrer);
[email protected]38178a42009-12-17 18:58:321197 if (entry->update_virtual_url_with_url())
1198 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141199
1200 // The redirected to page should not inherit the favicon from the previous
1201 // page.
Sylvain Defresnec6ccc77d2014-09-19 10:19:351202 if (ui::PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481203 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141204
1205 // The site instance will normally be the same except during session restore,
1206 // when no site instance will be assigned.
fdegans9caf66a2015-07-30 21:10:421207 DCHECK(entry->site_instance() == nullptr ||
[email protected]27dd82fd2014-03-03 22:11:431208 entry->site_instance() == rfh->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331209 entry->set_site_instance(
[email protected]27dd82fd2014-03-03 22:11:431210 static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431211
[email protected]36fc0392011-12-25 03:59:511212 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051213 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411214
[email protected]e9ba4472008-09-14 15:42:431215 // The entry we found in the list might be pending if the user hit
1216 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591217 // list, we can just discard the pending pointer). We should also discard the
1218 // pending entry if it corresponds to a different navigation, since that one
1219 // is now likely canceled. If it is not canceled, we will treat it as a new
1220 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431221 //
1222 // Note that we need to use the "internal" version since we don't want to
1223 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491224 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391225
[email protected]80858db52009-10-15 00:35:181226 // If a transient entry was removed, the indices might have changed, so we
1227 // have to query the entry index again.
avicbdc4c12015-07-01 16:07:111228 last_committed_entry_index_ = GetIndexOfEntry(entry);
[email protected]e9ba4472008-09-14 15:42:431229}
1230
[email protected]d202a7c2012-01-04 07:53:471231void NavigationControllerImpl::RendererDidNavigateToSamePage(
creis3da03872015-02-20 21:12:321232 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221233 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
aviaf5660962015-06-30 15:12:291234 // This classification says that we have a pending entry that's the same as
1235 // the last committed entry. This entry is guaranteed to exist by
[email protected]4c27ba82008-09-24 16:49:091236 // ClassifyNavigation. All we need to do is update the existing entry.
aviaf5660962015-06-30 15:12:291237 NavigationEntryImpl* existing_entry = GetLastCommittedEntry();
[email protected]e9ba4472008-09-14 15:42:431238
creis77c9aa32015-09-25 19:59:421239 // If we classified this correctly, the SiteInstance should not have changed.
1240 CHECK_EQ(existing_entry->site_instance(), rfh->GetSiteInstance());
1241
[email protected]e9ba4472008-09-14 15:42:431242 // We assign the entry's unique ID to be that of the new one. Since this is
1243 // always the result of a user action, we want to dismiss infobars, etc. like
1244 // a regular user-initiated navigation.
creis77c9aa32015-09-25 19:59:421245 DCHECK_EQ(pending_entry_->GetUniqueID(), params.nav_entry_id);
[email protected]36fc0392011-12-25 03:59:511246 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431247
[email protected]a0e69262009-06-03 19:08:481248 // The URL may have changed due to redirects.
wjmaclean7431bb22015-02-19 14:53:431249 existing_entry->set_page_type(params.url_is_unreachable ? PAGE_TYPE_ERROR
1250 : PAGE_TYPE_NORMAL);
[email protected]38178a42009-12-17 18:58:321251 if (existing_entry->update_virtual_url_with_url())
1252 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041253 existing_entry->SetURL(params.url);
[email protected]25cd5f12014-01-10 11:02:201254 existing_entry->SetReferrer(params.referrer);
[email protected]a0e69262009-06-03 19:08:481255
[email protected]b77686522013-12-11 20:34:191256 // The page may have been requested with a different HTTP method.
1257 existing_entry->SetHasPostData(params.is_post);
1258 existing_entry->SetPostID(params.post_id);
1259
[email protected]cbab76d2008-10-13 22:42:471260 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431261}
1262
[email protected]d202a7c2012-01-04 07:53:471263void NavigationControllerImpl::RendererDidNavigateNewSubframe(
creis3da03872015-02-20 21:12:321264 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221265 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi25f5f9e2015-07-17 20:08:261266 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1267 ui::PAGE_TRANSITION_MANUAL_SUBFRAME));
[email protected]09b8f82f2009-06-16 20:22:111268
[email protected]e9ba4472008-09-14 15:42:431269 // Manual subframe navigations just get the current entry cloned so the user
1270 // can go back or forward to it. The actual subframe information will be
1271 // stored in the page state for each of those entries. This happens out of
1272 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091273 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1274 << "that a last committed entry exists.";
creis96fc55082015-06-13 06:42:381275
avi25764702015-06-23 15:43:371276 scoped_ptr<NavigationEntryImpl> new_entry;
nickd30fd962015-07-27 21:51:081277 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis96fc55082015-06-13 06:42:381278 // Make sure new_entry takes ownership of frame_entry in a scoped_refptr.
1279 FrameNavigationEntry* frame_entry = new FrameNavigationEntry(
creis6d752c32015-11-10 01:59:431280 rfh->frame_tree_node()->frame_tree_node_id(), params.frame_unique_name,
creis8b5cd4c2015-06-19 00:11:081281 params.item_sequence_number, params.document_sequence_number,
1282 rfh->GetSiteInstance(), params.url, params.referrer);
creis96fc55082015-06-13 06:42:381283 new_entry = GetLastCommittedEntry()->CloneAndReplace(rfh->frame_tree_node(),
1284 frame_entry);
creise062d542015-08-25 02:01:551285
1286 // TODO(creis): Make sure the last committed entry always has the subframe
1287 // entry to replace, and CHECK(frame_entry->HasOneRef). For now, we might
1288 // not find the entry to replace, and new_entry will be deleted when it goes
1289 // out of scope. See https://crbug.com/522193.
creis96fc55082015-06-13 06:42:381290 } else {
1291 new_entry = GetLastCommittedEntry()->Clone();
1292 }
1293
[email protected]36fc0392011-12-25 03:59:511294 new_entry->SetPageID(params.page_id);
dcheng36b6aec92015-12-26 06:16:361295 InsertOrReplaceEntry(std::move(new_entry), false);
[email protected]e9ba4472008-09-14 15:42:431296}
1297
[email protected]d202a7c2012-01-04 07:53:471298bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
creis3da03872015-02-20 21:12:321299 RenderFrameHostImpl* rfh,
[email protected]37567b432014-02-12 01:12:221300 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
avi9f07a0c2015-02-18 22:51:291301 DCHECK(ui::PageTransitionCoreTypeIs(params.transition,
1302 ui::PAGE_TRANSITION_AUTO_SUBFRAME));
1303
[email protected]e9ba4472008-09-14 15:42:431304 // We're guaranteed to have a previously committed entry, and we now need to
1305 // handle navigation inside of a subframe in it without creating a new entry.
1306 DCHECK(GetLastCommittedEntry());
1307
avi98405c22015-05-21 20:47:061308 if (params.nav_entry_id) {
caitkp420384c62015-05-28 14:34:511309 int entry_index = GetEntryIndexWithUniqueID(params.nav_entry_id);
caitkp420384c62015-05-28 14:34:511310
creis3cdc3b02015-05-29 23:00:471311 // If the |nav_entry_id| is non-zero and matches an existing entry, this is
1312 // a history auto" navigation. Update the last committed index accordingly.
1313 // If we don't recognize the |nav_entry_id|, it might be either a pending
1314 // entry for a transfer or a recently pruned entry. We'll handle it below.
1315 if (entry_index != -1 && entry_index != last_committed_entry_index_) {
avi98405c22015-05-21 20:47:061316 // Make sure that a subframe commit isn't changing the main frame's
1317 // origin. Otherwise the renderer process may be confused, leading to a
1318 // URL spoof. We can't check the path since that may change
1319 // (https://crbug.com/373041).
1320 if (GetLastCommittedEntry()->GetURL().GetOrigin() !=
1321 GetEntryAtIndex(entry_index)->GetURL().GetOrigin()) {
1322 // TODO(creis): This is unexpectedly being encountered in practice. If
1323 // you encounter this in practice, please post details to
1324 // https://crbug.com/486916. Once that's resolved, we'll change this to
1325 // kill the renderer process with bad_message::NC_AUTO_SUBFRAME.
1326 NOTREACHED() << "Unexpected main frame origin change on AUTO_SUBFRAME.";
1327 }
creis3cdc3b02015-05-29 23:00:471328
1329 // TODO(creis): Update the FrameNavigationEntry in --site-per-process.
avi98405c22015-05-21 20:47:061330 last_committed_entry_index_ = entry_index;
1331 DiscardNonCommittedEntriesInternal();
1332 return true;
1333 }
[email protected]e9ba4472008-09-14 15:42:431334 }
[email protected]f233e4232013-02-23 00:55:141335
nickd30fd962015-07-27 21:51:081336 if (SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis625a0c7d2015-03-24 23:17:121337 // This may be a "new auto" case where we add a new FrameNavigationEntry, or
1338 // it may be a "history auto" case where we update an existing one.
creis625a0c7d2015-03-24 23:17:121339 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
creis8b5cd4c2015-06-19 00:11:081340 last_committed->AddOrUpdateFrameEntry(
creis6d752c32015-11-10 01:59:431341 rfh->frame_tree_node(), params.frame_unique_name,
1342 params.item_sequence_number, params.document_sequence_number,
1343 rfh->GetSiteInstance(), params.url, params.referrer, params.page_state);
creis3cdc3b02015-05-29 23:00:471344
1345 // Cross-process subframe navigations may leave a pending entry around.
creisefbbbb52015-06-01 19:28:541346 // Clear it if it's actually for the subframe.
creis3cdc3b02015-05-29 23:00:471347 // TODO(creis): Don't use pending entries for subframe navigations.
creisefbbbb52015-06-01 19:28:541348 // See https://crbug.com/495161.
1349 if (pending_entry_ &&
1350 pending_entry_->frame_tree_node_id() ==
1351 rfh->frame_tree_node()->frame_tree_node_id()) {
1352 DiscardPendingEntry(false);
1353 }
creis625a0c7d2015-03-24 23:17:121354 }
1355
[email protected]f233e4232013-02-23 00:55:141356 // We do not need to discard the pending entry in this case, since we will
1357 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431358 return false;
1359}
1360
[email protected]d202a7c2012-01-04 07:53:471361int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231362 const NavigationEntryImpl* entry) const {
avif16f85a72015-11-13 18:25:031363 for (size_t i = 0; i < entries_.size(); ++i) {
1364 if (entries_[i].get() == entry)
1365 return i;
1366 }
1367 return -1;
[email protected]765b35502008-08-21 00:51:201368}
1369
avidb7d1d22015-06-08 21:21:501370// There are two general cases where a navigation is "in page":
1371// 1. A fragment navigation, in which the url is kept the same except for the
1372// reference fragment.
1373// 2. A history API navigation (pushState and replaceState). This case is
1374// always in-page, but the urls are not guaranteed to match excluding the
1375// fragment. The relevant spec allows pushState/replaceState to any URL on
1376// the same origin.
1377// However, due to reloads, even identical urls are *not* guaranteed to be
1378// in-page navigations, we have to trust the renderer almost entirely.
1379// The one thing we do know is that cross-origin navigations will *never* be
1380// in-page. Therefore, trust the renderer if the URLs are on the same origin,
1381// and assume the renderer is malicious if a cross-origin navigation claims to
1382// be in-page.
[email protected]ce760d742012-08-30 22:31:101383bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121384 const GURL& url,
1385 bool renderer_says_in_page,
[email protected]5cfbddc2014-06-23 23:52:231386 RenderFrameHost* rfh) const {
avidb7d1d22015-06-08 21:21:501387 GURL last_committed_url;
1388 if (rfh->GetParent()) {
1389 last_committed_url = rfh->GetLastCommittedURL();
1390 } else {
1391 NavigationEntry* last_committed = GetLastCommittedEntry();
1392 // There must be a last-committed entry to compare URLs to. TODO(avi): When
1393 // might Blink say that a navigation is in-page yet there be no last-
1394 // committed entry?
1395 if (!last_committed)
1396 return false;
1397 last_committed_url = last_committed->GetURL();
1398 }
1399
1400 WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
creisdc004e02015-11-20 21:28:471401 const url::Origin& committed_origin = static_cast<RenderFrameHostImpl*>(rfh)
1402 ->frame_tree_node()
1403 ->current_origin();
avidb7d1d22015-06-08 21:21:501404 bool is_same_origin = last_committed_url.is_empty() ||
1405 // TODO(japhet): We should only permit navigations
1406 // originating from about:blank to be in-page if the
1407 // about:blank is the first document that frame loaded.
1408 // We don't have sufficient information to identify
1409 // that case at the moment, so always allow about:blank
1410 // for now.
1411 last_committed_url == GURL(url::kAboutBlankURL) ||
1412 last_committed_url.GetOrigin() == url.GetOrigin() ||
1413 !prefs.web_security_enabled ||
1414 (prefs.allow_universal_access_from_file_urls &&
creisdc004e02015-11-20 21:28:471415 committed_origin.scheme() == url::kFileScheme);
avidb7d1d22015-06-08 21:21:501416 if (!is_same_origin && renderer_says_in_page) {
1417 bad_message::ReceivedBadMessage(rfh->GetProcess(),
1418 bad_message::NC_IN_PAGE_NAVIGATION);
1419 }
1420 return is_same_origin && renderer_says_in_page;
[email protected]e9ba4472008-09-14 15:42:431421}
1422
[email protected]d202a7c2012-01-04 07:53:471423void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501424 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471425 const NavigationControllerImpl& source =
1426 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571427 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551428 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571429
[email protected]a26023822011-12-29 00:23:551430 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571431 return; // Nothing new to do.
1432
1433 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551434 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571435
[email protected]fdac6ade2013-07-20 01:06:301436 for (SessionStorageNamespaceMap::const_iterator it =
1437 source.session_storage_namespace_map_.begin();
1438 it != source.session_storage_namespace_map_.end();
1439 ++it) {
1440 SessionStorageNamespaceImpl* source_namespace =
1441 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1442 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1443 }
[email protected]4e6419c2010-01-15 04:50:341444
[email protected]2ca1ea662012-10-04 02:26:361445 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571446
1447 // Copy the max page id map from the old tab to the new tab. This ensures
1448 // that new and existing navigations in the tab's current SiteInstances
1449 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571450 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571451}
1452
[email protected]d202a7c2012-01-04 07:53:471453void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]e78a6852013-12-13 08:08:571454 NavigationController* temp,
1455 bool replace_entry) {
[email protected]474f8512013-05-31 22:31:161456 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011457 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161458
[email protected]d202a7c2012-01-04 07:53:471459 NavigationControllerImpl* source =
1460 static_cast<NavigationControllerImpl*>(temp);
[email protected]e1cd5452010-08-26 18:03:251461
avi2b177592014-12-10 02:08:021462 // Remove all the entries leaving the last committed entry.
[email protected]79368982013-11-13 01:11:011463 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251464
[email protected]474f8512013-05-31 22:31:161465 // We now have one entry, possibly with a new pending entry. Ensure that
1466 // adding the entries from source won't put us over the limit.
1467 DCHECK_EQ(1, GetEntryCount());
[email protected]e78a6852013-12-13 08:08:571468 if (!replace_entry)
1469 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251470
[email protected]47e020a2010-10-15 14:43:371471 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
avi2b177592014-12-10 02:08:021472 // we don't want to copy over the transient entry. Ignore any pending entry,
[email protected]474f8512013-05-31 22:31:161473 // since it has not committed in source.
1474 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251475 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551476 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251477 else
1478 max_source_index++;
[email protected]e78a6852013-12-13 08:08:571479
1480 // Ignore the source's current entry if merging with replacement.
1481 // TODO(davidben): This should preserve entries forward of the current
1482 // too. http://crbug.com/317872
1483 if (replace_entry && max_source_index > 0)
1484 max_source_index--;
1485
[email protected]47e020a2010-10-15 14:43:371486 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251487
1488 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551489 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141490
avi2b177592014-12-10 02:08:021491 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1492 GetEntryCount());
[email protected]91854cd2012-01-10 19:43:571493
avi2b177592014-12-10 02:08:021494 // Copy the max page id map from the old tab to the new tab. This ensures that
1495 // new and existing navigations in the tab's current SiteInstances are
1496 // identified properly.
creis3da03872015-02-20 21:12:321497 NavigationEntryImpl* last_committed = GetLastCommittedEntry();
avib7348942015-12-25 20:57:101498 int32_t site_max_page_id =
avi2b177592014-12-10 02:08:021499 delegate_->GetMaxPageIDForSiteInstance(last_committed->site_instance());
[email protected]ec6c05f2013-10-23 18:41:571500 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
avi2b177592014-12-10 02:08:021501 delegate_->UpdateMaxPageIDForSiteInstance(last_committed->site_instance(),
1502 site_max_page_id);
[email protected]f69ed362014-04-28 14:01:421503 max_restored_page_id_ = source->max_restored_page_id_;
[email protected]e1cd5452010-08-26 18:03:251504}
1505
[email protected]79368982013-11-13 01:11:011506bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161507 // If there is no last committed entry, we cannot prune. Even if there is a
1508 // pending entry, it may not commit, leaving this WebContents blank, despite
1509 // possibly giving it new entries via CopyStateFromAndPrune.
1510 if (last_committed_entry_index_ == -1)
1511 return false;
[email protected]9350602e2013-02-26 23:27:441512
[email protected]474f8512013-05-31 22:31:161513 // We cannot prune if there is a pending entry at an existing entry index.
1514 // It may not commit, so we have to keep the last committed entry, and thus
1515 // there is no sensible place to keep the pending entry. It is ok to have
1516 // a new pending entry, which can optionally commit as a new navigation.
1517 if (pending_entry_index_ != -1)
1518 return false;
1519
1520 // We should not prune if we are currently showing a transient entry.
1521 if (transient_entry_index_ != -1)
1522 return false;
1523
1524 return true;
1525}
1526
[email protected]79368982013-11-13 01:11:011527void NavigationControllerImpl::PruneAllButLastCommitted() {
1528 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161529
avi2b177592014-12-10 02:08:021530 DCHECK_EQ(0, last_committed_entry_index_);
1531 DCHECK_EQ(1, GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441532
avi2b177592014-12-10 02:08:021533 delegate_->SetHistoryOffsetAndLength(last_committed_entry_index_,
1534 GetEntryCount());
[email protected]9350602e2013-02-26 23:27:441535}
1536
[email protected]79368982013-11-13 01:11:011537void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161538 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011539 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261540
[email protected]474f8512013-05-31 22:31:161541 // Erase all entries but the last committed entry. There may still be a
1542 // new pending entry after this.
1543 entries_.erase(entries_.begin(),
1544 entries_.begin() + last_committed_entry_index_);
1545 entries_.erase(entries_.begin() + 1, entries_.end());
1546 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261547}
1548
[email protected]15f46dc2013-01-24 05:40:241549void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101550 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241551}
1552
[email protected]d1198fd2012-08-13 22:50:191553void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301554 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211555 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191556 if (!session_storage_namespace)
1557 return;
1558
1559 // We can't overwrite an existing SessionStorage without violating spec.
1560 // Attempts to do so may give a tab access to another tab's session storage
1561 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301562 bool successful_insert = session_storage_namespace_map_.insert(
1563 make_pair(partition_id,
1564 static_cast<SessionStorageNamespaceImpl*>(
1565 session_storage_namespace)))
1566 .second;
1567 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191568}
1569
avib7348942015-12-25 20:57:101570void NavigationControllerImpl::SetMaxRestoredPageID(int32_t max_id) {
[email protected]71fde352011-12-29 03:29:561571 max_restored_page_id_ = max_id;
1572}
1573
avib7348942015-12-25 20:57:101574int32_t NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561575 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551576}
1577
[email protected]aa62afd2014-04-22 19:22:461578bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
[email protected]aa62afd2014-04-22 19:22:461579 return IsInitialNavigation() &&
[email protected]b4c84012014-04-28 19:51:101580 !GetLastCommittedEntry() &&
1581 !delegate_->HasAccessedInitialDocument();
[email protected]aa62afd2014-04-22 19:22:461582}
1583
[email protected]a26023822011-12-29 00:23:551584SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301585NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1586 std::string partition_id;
1587 if (instance) {
1588 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1589 // this if statement so |instance| must not be NULL.
1590 partition_id =
1591 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1592 browser_context_, instance->GetSiteURL());
1593 }
[email protected]d1198fd2012-08-13 22:50:191594
[email protected]fdac6ade2013-07-20 01:06:301595 SessionStorageNamespaceMap::const_iterator it =
1596 session_storage_namespace_map_.find(partition_id);
1597 if (it != session_storage_namespace_map_.end())
1598 return it->second.get();
1599
1600 // Create one if no one has accessed session storage for this partition yet.
1601 //
1602 // TODO(ajwong): Should this use the |partition_id| directly rather than
1603 // re-lookup via |instance|? http://crbug.com/142685
1604 StoragePartition* partition =
1605 BrowserContext::GetStoragePartition(browser_context_, instance);
1606 SessionStorageNamespaceImpl* session_storage_namespace =
1607 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411608 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301609 partition->GetDOMStorageContext()));
1610 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1611
1612 return session_storage_namespace;
1613}
1614
1615SessionStorageNamespace*
1616NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1617 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1618 return GetSessionStorageNamespace(NULL);
1619}
1620
1621const SessionStorageNamespaceMap&
1622NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1623 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551624}
[email protected]d202a7c2012-01-04 07:53:471625
1626bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561627 return needs_reload_;
1628}
[email protected]a26023822011-12-29 00:23:551629
[email protected]46bb5e9c2013-10-03 22:16:471630void NavigationControllerImpl::SetNeedsReload() {
1631 needs_reload_ = true;
jaekyunc8cefa82015-01-09 20:14:541632
1633 if (last_committed_entry_index_ != -1) {
1634 entries_[last_committed_entry_index_]->SetTransitionType(
1635 ui::PAGE_TRANSITION_RELOAD);
1636 }
[email protected]46bb5e9c2013-10-03 22:16:471637}
1638
[email protected]d202a7c2012-01-04 07:53:471639void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551640 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121641 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311642
1643 DiscardNonCommittedEntries();
1644
1645 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121646 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311647 last_committed_entry_index_--;
1648}
1649
[email protected]d202a7c2012-01-04 07:53:471650void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471651 bool transient = transient_entry_index_ != -1;
1652 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291653
[email protected]cbab76d2008-10-13 22:42:471654 // If there was a transient entry, invalidate everything so the new active
1655 // entry state is shown.
1656 if (transient) {
[email protected]7f924832014-08-09 05:57:221657 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_ALL);
[email protected]cbab76d2008-10-13 22:42:471658 }
initial.commit09911bf2008-07-26 23:55:291659}
1660
creis3da03872015-02-20 21:12:321661NavigationEntryImpl* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251662 return pending_entry_;
1663}
1664
[email protected]d202a7c2012-01-04 07:53:471665int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551666 return pending_entry_index_;
1667}
1668
avi25764702015-06-23 15:43:371669void NavigationControllerImpl::InsertOrReplaceEntry(
1670 scoped_ptr<NavigationEntryImpl> entry, bool replace) {
Sylvain Defresnec6ccc77d2014-09-19 10:19:351671 DCHECK(entry->GetTransitionType() != ui::PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201672
avi5cad4912015-06-19 05:25:441673 // If the pending_entry_index_ is -1, the navigation was to a new page, and we
1674 // need to keep continuity with the pending entry, so copy the pending entry's
1675 // unique ID to the committed entry. If the pending_entry_index_ isn't -1,
1676 // then the renderer navigated on its own, independent of the pending entry,
1677 // so don't copy anything.
1678 if (pending_entry_ && pending_entry_index_ == -1)
1679 entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201680
[email protected]cbab76d2008-10-13 22:42:471681 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201682
1683 int current_size = static_cast<int>(entries_.size());
creisee17e932015-07-17 17:56:221684
1685 // When replacing, don't prune the forward history.
creis37979a62015-08-04 19:48:181686 if (replace && current_size > 0) {
avib7348942015-12-25 20:57:101687 int32_t page_id = entry->GetPageID();
creisee17e932015-07-17 17:56:221688
dcheng36b6aec92015-12-26 06:16:361689 entries_[last_committed_entry_index_] = std::move(entry);
creisee17e932015-07-17 17:56:221690
1691 // This is a new page ID, so we need everybody to know about it.
1692 delegate_->UpdateMaxPageID(page_id);
1693 return;
1694 }
[email protected]765b35502008-08-21 00:51:201695
creis37979a62015-08-04 19:48:181696 // We shouldn't see replace == true when there's no committed entries.
1697 DCHECK(!replace);
1698
[email protected]765b35502008-08-21 00:51:201699 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451700 // Prune any entries which are in front of the current entry.
[email protected]47dcbdc2011-05-27 15:08:311701 // last_committed_entry_index_ must be updated here since calls to
1702 // NotifyPrunedEntries() below may re-enter and we must make sure
1703 // last_committed_entry_index_ is not left in an invalid state.
[email protected]c12bf1a12008-09-17 16:28:491704 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311705 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491706 num_pruned++;
[email protected]765b35502008-08-21 00:51:201707 entries_.pop_back();
1708 current_size--;
1709 }
[email protected]c12bf1a12008-09-17 16:28:491710 if (num_pruned > 0) // Only notify if we did prune something.
1711 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201712 }
1713
[email protected]944822b2012-03-02 20:57:251714 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201715
avib7348942015-12-25 20:57:101716 int32_t page_id = entry->GetPageID();
dcheng36b6aec92015-12-26 06:16:361717 entries_.push_back(std::move(entry));
[email protected]765b35502008-08-21 00:51:201718 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431719
1720 // This is a new page ID, so we need everybody to know about it.
avi25764702015-06-23 15:43:371721 delegate_->UpdateMaxPageID(page_id);
initial.commit09911bf2008-07-26 23:55:291722}
1723
[email protected]944822b2012-03-02 20:57:251724void NavigationControllerImpl::PruneOldestEntryIfFull() {
1725 if (entries_.size() >= max_entry_count()) {
1726 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021727 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251728 RemoveEntryAtIndex(0);
1729 NotifyPrunedEntries(this, true, 1);
1730 }
1731}
1732
[email protected]d202a7c2012-01-04 07:53:471733void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011734 needs_reload_ = false;
1735
[email protected]83c2e232011-10-07 21:36:461736 // If we were navigating to a slow-to-commit page, and the user performs
1737 // a session history navigation to the last committed page, RenderViewHost
1738 // will force the throbber to start, but WebKit will essentially ignore the
1739 // navigation, and won't send a message to stop the throbber. To prevent this
1740 // from happening, we drop the navigation here and stop the slow-to-commit
1741 // page from loading (which would normally happen during the navigation).
1742 if (pending_entry_index_ != -1 &&
1743 pending_entry_index_ == last_committed_entry_index_ &&
1744 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231745 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511746 (entries_[pending_entry_index_]->GetTransitionType() &
Sylvain Defresnec6ccc77d2014-09-19 10:19:351747 ui::PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571748 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121749
1750 // If an interstitial page is showing, we want to close it to get back
1751 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571752 if (delegate_->GetInterstitialPage())
1753 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121754
[email protected]83c2e232011-10-07 21:36:461755 DiscardNonCommittedEntries();
1756 return;
1757 }
1758
[email protected]6a13a6c2011-12-20 21:47:121759 // If an interstitial page is showing, the previous renderer is blocked and
1760 // cannot make new requests. Unblock (and disable) it to allow this
1761 // navigation to succeed. The interstitial will stay visible until the
1762 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571763 if (delegate_->GetInterstitialPage()) {
1764 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131765 CancelForNavigation();
1766 }
[email protected]6a13a6c2011-12-20 21:47:121767
initial.commit09911bf2008-07-26 23:55:291768 // For session history navigations only the pending_entry_index_ is set.
1769 if (!pending_entry_) {
avicc872d7242015-08-19 21:26:341770 CHECK_NE(pending_entry_index_, -1);
avif16f85a72015-11-13 18:25:031771 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291772 }
1773
creiscf40d9c2015-09-11 18:20:541774 // Any renderer-side debug URLs or javascript: URLs should be ignored if the
1775 // renderer process is not live, unless it is the initial navigation of the
1776 // tab.
1777 if (IsRendererDebugURL(pending_entry_->GetURL())) {
1778 // TODO(creis): Find the RVH for the correct frame.
1779 if (!delegate_->GetRenderViewHost()->IsRenderViewLive() &&
1780 !IsInitialNavigation()) {
1781 DiscardNonCommittedEntries();
1782 return;
1783 }
1784 }
1785
[email protected]40fd3032014-02-28 22:16:281786 // This call does not support re-entrancy. See http://crbug.com/347742.
1787 CHECK(!in_navigate_to_pending_entry_);
1788 in_navigate_to_pending_entry_ = true;
creis4e2ecb72015-06-20 00:46:301789 bool success = NavigateToPendingEntryInternal(reload_type);
[email protected]40fd3032014-02-28 22:16:281790 in_navigate_to_pending_entry_ = false;
1791
1792 if (!success)
[email protected]cbab76d2008-10-13 22:42:471793 DiscardNonCommittedEntries();
initial.commit09911bf2008-07-26 23:55:291794}
1795
creis4e2ecb72015-06-20 00:46:301796bool NavigationControllerImpl::NavigateToPendingEntryInternal(
1797 ReloadType reload_type) {
1798 DCHECK(pending_entry_);
1799 FrameTreeNode* root = delegate_->GetFrameTree()->root();
1800
1801 // In default Chrome, there are no subframe FrameNavigationEntries. Either
1802 // navigate the main frame or use the main frame's FrameNavigationEntry to
1803 // tell the indicated frame where to go.
nickd30fd962015-07-27 21:51:081804 if (!SiteIsolationPolicy::UseSubframeNavigationEntries()) {
creis4e2ecb72015-06-20 00:46:301805 FrameNavigationEntry* frame_entry = GetPendingEntry()->GetFrameEntry(root);
1806 FrameTreeNode* frame = root;
1807 int ftn_id = GetPendingEntry()->frame_tree_node_id();
1808 if (ftn_id != -1) {
1809 frame = delegate_->GetFrameTree()->FindByID(ftn_id);
1810 DCHECK(frame);
1811 }
1812 return frame->navigator()->NavigateToPendingEntry(frame, *frame_entry,
1813 reload_type, false);
1814 }
1815
1816 // In --site-per-process, we compare FrameNavigationEntries to see which
1817 // frames in the tree need to be navigated.
1818 FrameLoadVector same_document_loads;
1819 FrameLoadVector different_document_loads;
1820 if (GetLastCommittedEntry()) {
1821 FindFramesToNavigate(root, &same_document_loads, &different_document_loads);
1822 }
1823
1824 if (same_document_loads.empty() && different_document_loads.empty()) {
1825 // If we don't have any frames to navigate at this point, either
1826 // (1) there is no previous history entry to compare against, or
1827 // (2) we were unable to match any frames by name. In the first case,
1828 // doing a different document navigation to the root item is the only valid
1829 // thing to do. In the second case, we should have been able to find a
1830 // frame to navigate based on names if this were a same document
1831 // navigation, so we can safely assume this is the different document case.
1832 different_document_loads.push_back(
1833 std::make_pair(root, pending_entry_->GetFrameEntry(root)));
1834 }
1835
1836 // If all the frame loads fail, we will discard the pending entry.
1837 bool success = false;
1838
1839 // Send all the same document frame loads before the different document loads.
1840 for (const auto& item : same_document_loads) {
1841 FrameTreeNode* frame = item.first;
1842 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1843 reload_type, true);
1844 }
1845 for (const auto& item : different_document_loads) {
1846 FrameTreeNode* frame = item.first;
1847 success |= frame->navigator()->NavigateToPendingEntry(frame, *item.second,
1848 reload_type, false);
1849 }
1850 return success;
1851}
1852
1853void NavigationControllerImpl::FindFramesToNavigate(
1854 FrameTreeNode* frame,
1855 FrameLoadVector* same_document_loads,
1856 FrameLoadVector* different_document_loads) {
1857 DCHECK(pending_entry_);
1858 DCHECK_GE(last_committed_entry_index_, 0);
1859 FrameNavigationEntry* new_item = pending_entry_->GetFrameEntry(frame);
1860 FrameNavigationEntry* old_item =
1861 GetLastCommittedEntry()->GetFrameEntry(frame);
1862 if (!new_item)
1863 return;
1864
1865 // Schedule a load in this frame if the new item isn't for the same item
creis7115a702015-12-03 18:55:561866 // sequence number in the same SiteInstance. Newly restored items may not have
1867 // a SiteInstance yet, in which case it will be assigned on first commit.
creis4e2ecb72015-06-20 00:46:301868 if (!old_item ||
1869 new_item->item_sequence_number() != old_item->item_sequence_number() ||
creis7115a702015-12-03 18:55:561870 (new_item->site_instance() != nullptr &&
1871 new_item->site_instance() != old_item->site_instance())) {
creis4e2ecb72015-06-20 00:46:301872 if (old_item &&
creis4e2ecb72015-06-20 00:46:301873 new_item->document_sequence_number() ==
1874 old_item->document_sequence_number()) {
1875 same_document_loads->push_back(std::make_pair(frame, new_item));
1876 } else {
1877 different_document_loads->push_back(std::make_pair(frame, new_item));
1878 }
1879 return;
1880 }
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