blob: 8bd29ee87dbbf48fe621b6de74eee40f6cf1544a [file] [log] [blame]
[email protected]91854cd2012-01-10 19:43:571// Copyright (c) 2012 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
[email protected]f9e4dae2012-04-10 21:26:375#include "content/browser/web_contents/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
initial.commit09911bf2008-07-26 23:55:298#include "base/logging.h"
[email protected]b69934e2011-10-29 02:51:529#include "base/string_number_conversions.h" // Temporary
initial.commit09911bf2008-07-26 23:55:2910#include "base/string_util.h"
[email protected]b689fce72009-03-17 22:45:3411#include "base/time.h"
[email protected]252cad62010-08-18 18:33:5712#include "base/utf_string_conversions.h"
[email protected]825b1662012-03-12 19:07:3113#include "content/browser/browser_url_handler_impl.h"
[email protected]b9535422012-02-09 01:47:5914#include "content/browser/child_process_security_policy_impl.h"
[email protected]1ea3c792012-04-17 01:25:0415#include "content/browser/dom_storage/dom_storage_context_impl.h"
16#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]b3c41c0b2012-03-06 15:48:3217#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3318#include "content/browser/site_instance_impl.h"
[email protected]f9e4dae2012-04-10 21:26:3719#include "content/browser/web_contents/debug_urls.h"
20#include "content/browser/web_contents/interstitial_page_impl.h"
21#include "content/browser/web_contents/navigation_entry_impl.h"
[email protected]93ddb3c2012-04-11 21:44:2922#include "content/browser/web_contents/web_contents_impl.h"
[email protected]1a3f5312013-04-26 21:00:1023#include "content/browser/web_contents/web_contents_screenshot_manager.h"
[email protected]0aed2f52011-03-23 18:06:3624#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1125#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1926#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4627#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0028#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3829#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1630#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5831#include "content/public/browser/render_widget_host.h"
32#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3433#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3834#include "content/public/browser/user_metrics.h"
[email protected]674bc592011-12-20 23:00:4235#include "content/public/browser/web_contents_delegate.h"
[email protected]d1198fd2012-08-13 22:50:1936#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3837#include "content/public/common/content_constants.h"
[email protected]d1ef81d2012-07-24 11:39:3638#include "content/public/common/url_constants.h"
[email protected]a23de8572009-06-03 02:16:3239#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1640#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3241#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5842#include "skia/ext/platform_canvas.h"
initial.commit09911bf2008-07-26 23:55:2943
[email protected]8ff00d72012-10-23 19:12:2144namespace content {
[email protected]e9ba4472008-09-14 15:42:4345namespace {
46
[email protected]93f230e02011-06-01 14:40:0047const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3748
[email protected]e9ba4472008-09-14 15:42:4349// Invoked when entries have been pruned, or removed. For example, if the
50// current entries are [google, digg, yahoo], with the current entry google,
51// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4752void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4953 bool from_front,
54 int count) {
[email protected]8ff00d72012-10-23 19:12:2155 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4956 details.from_front = from_front;
57 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2158 NotificationService::current()->Notify(
59 NOTIFICATION_NAV_LIST_PRUNED,
60 Source<NavigationController>(nav_controller),
61 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4362}
63
64// Ensure the given NavigationEntry has a valid state, so that WebKit does not
65// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3966//
[email protected]e9ba4472008-09-14 15:42:4367// An empty state is treated as a new navigation by WebKit, which would mean
68// losing the navigation entries and generating a new navigation entry after
69// this one. We don't want that. To avoid this we create a valid state which
70// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:0471void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
72 if (!entry->GetPageState().IsValid())
73 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4374}
75
[email protected]2ca1ea662012-10-04 02:26:3676NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
77 NavigationController::RestoreType type) {
78 switch (type) {
79 case NavigationController::RESTORE_CURRENT_SESSION:
80 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
81 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
82 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
83 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
84 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
85 }
86 NOTREACHED();
87 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
88}
89
[email protected]e9ba4472008-09-14 15:42:4390// Configure all the NavigationEntries in entries for restore. This resets
91// the transition type to reload and makes sure the content state isn't empty.
92void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2393 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]2ca1ea662012-10-04 02:26:3694 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:4395 for (size_t i = 0; i < entries->size(); ++i) {
96 // Use a transition type of reload so that we don't incorrectly increase
97 // the typed count.
[email protected]8ff00d72012-10-23 19:12:2198 (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:3699 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:43100 // NOTE(darin): This code is only needed for backwards compat.
[email protected]691aa2f2013-05-28 22:52:04101 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43102 }
103}
104
105// See NavigationController::IsURLInPageNavigation for how this works and why.
[email protected]ce760d742012-08-30 22:31:10106bool AreURLsInPageNavigation(const GURL& existing_url,
107 const GURL& new_url,
108 bool renderer_says_in_page) {
109 if (existing_url == new_url)
110 return renderer_says_in_page;
111
112 if (!new_url.has_ref()) {
[email protected]192d8c5e2010-02-23 07:26:32113 // TODO(jcampan): what about when navigating back from a ref URL to the top
114 // non ref URL? Nothing is loaded in that case but we return false here.
115 // The user could also navigate from the ref URL to the non ref URL by
116 // entering the non ref URL in the location bar or through a bookmark, in
117 // which case there would be a load. I am not sure if the non-load/load
118 // scenarios can be differentiated with the TransitionType.
[email protected]e9ba4472008-09-14 15:42:43119 return false;
[email protected]192d8c5e2010-02-23 07:26:32120 }
[email protected]e9ba4472008-09-14 15:42:43121
122 url_canon::Replacements<char> replacements;
123 replacements.ClearRef();
124 return existing_url.ReplaceComponents(replacements) ==
125 new_url.ReplaceComponents(replacements);
126}
127
[email protected]bf70edce2012-06-20 22:32:22128// Determines whether or not we should be carrying over a user agent override
129// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21130bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22131 return last_entry && last_entry->GetIsOverridingUserAgent();
132}
133
[email protected]e9ba4472008-09-14 15:42:43134} // namespace
135
[email protected]d202a7c2012-01-04 07:53:47136// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29137
[email protected]9b51970d2011-12-09 23:10:23138const size_t kMaxEntryCountForTestingNotSet = -1;
139
[email protected]765b35502008-08-21 00:51:20140// static
[email protected]d202a7c2012-01-04 07:53:47141size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23142 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20143
[email protected]e6fec472013-05-14 05:29:02144// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20145// when testing.
146static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29147
[email protected]71fde352011-12-29 03:29:56148// static
[email protected]cdcb1dee2012-01-04 00:46:20149NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56150 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20151 const Referrer& referrer,
152 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56153 bool is_renderer_initiated,
154 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20155 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56156 // Allow the browser URL handler to rewrite the URL. This will, for example,
157 // remove "view-source:" from the beginning of the URL to get the URL that
158 // will actually be loaded. This real URL won't be shown to the user, just
159 // used internally.
160 GURL loaded_url(url);
161 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31162 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56163 &loaded_url, browser_context, &reverse_on_redirect);
164
165 NavigationEntryImpl* entry = new NavigationEntryImpl(
166 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56167 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56168 -1,
169 loaded_url,
170 referrer,
171 string16(),
172 transition,
173 is_renderer_initiated);
174 entry->SetVirtualURL(url);
175 entry->set_user_typed_url(url);
176 entry->set_update_virtual_url_with_url(reverse_on_redirect);
177 entry->set_extra_headers(extra_headers);
178 return entry;
179}
180
[email protected]cdcb1dee2012-01-04 00:46:20181// static
182void NavigationController::DisablePromptOnRepost() {
183 g_check_for_repost = false;
184}
185
[email protected]c5b88d82012-10-06 17:03:33186base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
187 base::Time t) {
188 // If |t| is between the water marks, we're in a run of duplicates
189 // or just getting out of it, so increase the high-water mark to get
190 // a time that probably hasn't been used before and return it.
191 if (low_water_mark_ <= t && t <= high_water_mark_) {
192 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
193 return high_water_mark_;
194 }
195
196 // Otherwise, we're clear of the last duplicate run, so reset the
197 // water marks.
198 low_water_mark_ = high_water_mark_ = t;
199 return t;
200}
201
[email protected]d202a7c2012-01-04 07:53:47202NavigationControllerImpl::NavigationControllerImpl(
[email protected]2db9bd72012-04-13 20:20:56203 WebContentsImpl* web_contents,
[email protected]d1198fd2012-08-13 22:50:19204 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37205 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20206 pending_entry_(NULL),
207 last_committed_entry_index_(-1),
208 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47209 transient_entry_index_(-1),
[email protected]2db9bd72012-04-13 20:20:56210 web_contents_(web_contents),
initial.commit09911bf2008-07-26 23:55:29211 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22212 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57213 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09214 is_initial_navigation_(true),
[email protected]c5b88d82012-10-06 17:03:33215 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31216 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]69e797f2013-04-30 01:10:22217 screenshot_manager_(new WebContentsScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37218 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29219}
220
[email protected]d202a7c2012-01-04 07:53:47221NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47222 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29223}
224
[email protected]d202a7c2012-01-04 07:53:47225WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]2db9bd72012-04-13 20:20:56226 return web_contents_;
[email protected]fbc5e5f92012-01-02 06:08:32227}
228
[email protected]d202a7c2012-01-04 07:53:47229BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55230 return browser_context_;
231}
232
[email protected]d202a7c2012-01-04 07:53:47233void NavigationControllerImpl::SetBrowserContext(
234 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20235 browser_context_ = browser_context;
236}
237
[email protected]d202a7c2012-01-04 07:53:47238void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30239 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36240 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23241 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57242 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55243 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57244 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14245 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57246
[email protected]ce3fa3c2009-04-20 19:55:57247 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04248 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23249 NavigationEntryImpl* entry =
250 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
251 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04252 }
[email protected]03838e22011-06-06 15:27:14253 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57254
255 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36256 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57257}
258
[email protected]d202a7c2012-01-04 07:53:47259void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16260 ReloadInternal(check_for_repost, RELOAD);
261}
[email protected]d202a7c2012-01-04 07:53:47262void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16263 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
264}
[email protected]7c16976c2012-08-04 02:38:23265void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
266 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
267}
[email protected]1ccb3568d2010-02-19 10:51:16268
[email protected]d202a7c2012-01-04 07:53:47269void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
270 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36271 if (transient_entry_index_ != -1) {
272 // If an interstitial is showing, treat a reload as a navigation to the
273 // transient entry's URL.
[email protected]8ff00d72012-10-23 19:12:21274 NavigationEntryImpl* active_entry =
[email protected]669e0ba2012-08-30 23:57:36275 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
276 if (!active_entry)
277 return;
278 LoadURL(active_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21279 Referrer(),
280 PAGE_TRANSITION_RELOAD,
[email protected]669e0ba2012-08-30 23:57:36281 active_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47282 return;
[email protected]669e0ba2012-08-30 23:57:36283 }
[email protected]cbab76d2008-10-13 22:42:47284
[email protected]979a4bc2013-04-24 01:27:15285 DiscardNonCommittedEntriesInternal();
286 int current_index = GetCurrentEntryIndex();
[email protected]241db352013-04-22 18:04:05287 // If we are no where, then we can't reload. TODO(darin): We should add a
288 // CanReload method.
[email protected]979a4bc2013-04-24 01:27:15289 if (current_index == -1) {
[email protected]241db352013-04-22 18:04:05290 return;
[email protected]979a4bc2013-04-24 01:27:15291 }
[email protected]241db352013-04-22 18:04:05292
[email protected]cdcb1dee2012-01-04 00:46:20293 if (g_check_for_repost && check_for_repost &&
[email protected]979a4bc2013-04-24 01:27:15294 GetEntryAtIndex(current_index)->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30295 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07296 // they really want to do this. If they do, the dialog will call us back
297 // with check_for_repost = false.
[email protected]17e286e2013-03-01 23:29:39298 web_contents_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02299
[email protected]106a0812010-03-18 00:15:12300 pending_reload_ = reload_type;
[email protected]2db9bd72012-04-13 20:20:56301 web_contents_->Activate();
302 web_contents_->GetDelegate()->ShowRepostFormWarningDialog(web_contents_);
initial.commit09911bf2008-07-26 23:55:29303 } else {
[email protected]979a4bc2013-04-24 01:27:15304 DiscardNonCommittedEntriesInternal();
305
306 NavigationEntryImpl* entry = entries_[current_index].get();
307 SiteInstanceImpl* site_instance = entry->site_instance();
308 DCHECK(site_instance);
[email protected]c3b3d952012-01-31 12:52:26309
[email protected]bcd904482012-02-01 01:54:22310 // If we are reloading an entry that no longer belongs to the current
311 // site instance (for example, refreshing a page for just installed app),
312 // the reload must happen in a new process.
313 // The new entry must have a new page_id and site instance, so it behaves
314 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30315 // Tabs that are discarded due to low memory conditions may not have a site
316 // instance, and should not be treated as a cross-site reload.
317 if (site_instance &&
318 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22319 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22320 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22321 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
322 CreateNavigationEntry(
323 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
324 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26325
[email protected]11535962012-02-09 21:02:10326 // Mark the reload type as NO_RELOAD, so navigation will not be considered
327 // a reload in the renderer.
328 reload_type = NavigationController::NO_RELOAD;
329
[email protected]e2caa032012-11-15 23:29:18330 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22331 pending_entry_ = nav_entry;
332 } else {
333 pending_entry_index_ = current_index;
334
335 // The title of the page being reloaded might have been removed in the
336 // meanwhile, so we need to revert to the default title upon reload and
337 // invalidate the previously cached title (SetTitle will do both).
338 // See Chromium issue 96041.
[email protected]979a4bc2013-04-24 01:27:15339 entries_[pending_entry_index_]->SetTitle(string16());
[email protected]bcd904482012-02-01 01:54:22340
[email protected]979a4bc2013-04-24 01:27:15341 entries_[pending_entry_index_]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22342 }
343
[email protected]1ccb3568d2010-02-19 10:51:16344 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29345 }
346}
347
[email protected]d202a7c2012-01-04 07:53:47348void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12349 DCHECK(pending_reload_ != NO_RELOAD);
350 pending_reload_ = NO_RELOAD;
351}
352
[email protected]d202a7c2012-01-04 07:53:47353void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12354 if (pending_reload_ == NO_RELOAD) {
355 NOTREACHED();
356 } else {
357 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02358 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12359 }
360}
361
[email protected]cd2e15742013-03-08 04:08:31362bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09363 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11364}
365
[email protected]d202a7c2012-01-04 07:53:47366NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33367 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11368 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20369 return (index != -1) ? entries_[index].get() : NULL;
370}
371
[email protected]d202a7c2012-01-04 07:53:47372void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]419a0572011-04-18 22:21:46373 // Don't navigate to URLs disabled by policy. This prevents showing the URL
374 // on the Omnibar when it is also going to be blocked by
375 // ChildProcessSecurityPolicy::CanRequestURL.
[email protected]b9535422012-02-09 01:47:59376 ChildProcessSecurityPolicyImpl* policy =
377 ChildProcessSecurityPolicyImpl::GetInstance();
[email protected]36fc0392011-12-25 03:59:51378 if (policy->IsDisabledScheme(entry->GetURL().scheme()) ||
379 policy->IsDisabledScheme(entry->GetVirtualURL().scheme())) {
[email protected]419a0572011-04-18 22:21:46380 VLOG(1) << "URL not loaded because the scheme is blocked by policy: "
[email protected]36fc0392011-12-25 03:59:51381 << entry->GetURL();
[email protected]419a0572011-04-18 22:21:46382 delete entry;
383 return;
384 }
385
[email protected]765b35502008-08-21 00:51:20386 // When navigating to a new page, we don't know for sure if we will actually
387 // end up leaving the current page. The new page load could for example
388 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]cbab76d2008-10-13 22:42:47389 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20390 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21391 NotificationService::current()->Notify(
392 NOTIFICATION_NAV_ENTRY_PENDING,
393 Source<NavigationController>(this),
394 Details<NavigationEntry>(entry));
[email protected]979a4bc2013-04-24 01:27:15395 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20396}
397
[email protected]d202a7c2012-01-04 07:53:47398NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47399 if (transient_entry_index_ != -1)
400 return entries_[transient_entry_index_].get();
401 if (pending_entry_)
402 return pending_entry_;
403 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20404}
405
[email protected]d202a7c2012-01-04 07:53:47406NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19407 if (transient_entry_index_ != -1)
408 return entries_[transient_entry_index_].get();
[email protected]979a4bc2013-04-24 01:27:15409 // Only return the pending_entry for new (non-history), browser-initiated
410 // navigations, in order to prevent URL spoof attacks.
411 // Ideally we would also show the pending entry's URL for new renderer-
412 // initiated navigations with no last committed entry (e.g., a link opening
413 // in a new tab), but an attacker can insert content into the about:blank
414 // page while the pending URL loads in that case.
415 if (pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51416 pending_entry_->GetPageID() == -1 &&
[email protected]e47ae9472011-10-13 19:48:34417 !pending_entry_->is_renderer_initiated())
[email protected]867e1f92011-08-30 19:01:19418 return pending_entry_;
419 return GetLastCommittedEntry();
420}
421
[email protected]d202a7c2012-01-04 07:53:47422int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47423 if (transient_entry_index_ != -1)
424 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20425 if (pending_entry_index_ != -1)
426 return pending_entry_index_;
427 return last_committed_entry_index_;
428}
429
[email protected]d202a7c2012-01-04 07:53:47430NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20431 if (last_committed_entry_index_ == -1)
432 return NULL;
433 return entries_[last_committed_entry_index_].get();
434}
435
[email protected]d202a7c2012-01-04 07:53:47436bool NavigationControllerImpl::CanViewSource() const {
[email protected]9d86c4982013-01-09 00:38:34437 const std::string& mime_type = web_contents_->GetContentsMimeType();
438 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
439 !net::IsSupportedMediaMimeType(mime_type);
[email protected]10f417c52011-12-28 21:04:23440 NavigationEntry* active_entry = GetActiveEntry();
[email protected]31682282010-01-15 18:05:16441 return active_entry && !active_entry->IsViewSourceMode() &&
[email protected]9d86c4982013-01-09 00:38:34442 is_viewable_mime_type && !web_contents_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16443}
444
[email protected]d202a7c2012-01-04 07:53:47445int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55446 return last_committed_entry_index_;
447}
448
[email protected]d202a7c2012-01-04 07:53:47449int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25450 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55451 return static_cast<int>(entries_.size());
452}
453
[email protected]d202a7c2012-01-04 07:53:47454NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25455 int index) const {
456 return entries_.at(index).get();
457}
458
[email protected]d202a7c2012-01-04 07:53:47459NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25460 int offset) const {
[email protected]9ba14052012-06-22 23:50:03461 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55462 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20463 return NULL;
464
465 return entries_[index].get();
466}
467
[email protected]9ba14052012-06-22 23:50:03468int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46469 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03470}
471
[email protected]9677a3c2012-12-22 04:18:58472void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10473 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58474}
475
[email protected]1a3f5312013-04-26 21:00:10476void NavigationControllerImpl::SetScreenshotManager(
477 WebContentsScreenshotManager* manager) {
478 screenshot_manager_.reset(manager ? manager :
479 new WebContentsScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58480}
481
[email protected]d202a7c2012-01-04 07:53:47482bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20483 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
484}
485
[email protected]d202a7c2012-01-04 07:53:47486bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20487 int index = GetCurrentEntryIndex();
488 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
489}
490
[email protected]9ba14052012-06-22 23:50:03491bool NavigationControllerImpl::CanGoToOffset(int offset) const {
492 int index = GetIndexForOffset(offset);
493 return index >= 0 && index < GetEntryCount();
494}
495
[email protected]d202a7c2012-01-04 07:53:47496void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20497 if (!CanGoBack()) {
498 NOTREACHED();
499 return;
500 }
501
502 // Base the navigation on where we are now...
503 int current_index = GetCurrentEntryIndex();
504
[email protected]cbab76d2008-10-13 22:42:47505 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20506
507 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25508 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21509 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51510 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21511 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16512 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20513}
514
[email protected]d202a7c2012-01-04 07:53:47515void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20516 if (!CanGoForward()) {
517 NOTREACHED();
518 return;
519 }
520
[email protected]cbab76d2008-10-13 22:42:47521 bool transient = (transient_entry_index_ != -1);
522
[email protected]765b35502008-08-21 00:51:20523 // Base the navigation on where we are now...
524 int current_index = GetCurrentEntryIndex();
525
[email protected]cbab76d2008-10-13 22:42:47526 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20527
[email protected]cbab76d2008-10-13 22:42:47528 pending_entry_index_ = current_index;
529 // If there was a transient entry, we removed it making the current index
530 // the next page.
531 if (!transient)
532 pending_entry_index_++;
533
[email protected]022af742011-12-28 18:37:25534 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21535 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51536 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21537 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16538 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20539}
540
[email protected]d202a7c2012-01-04 07:53:47541void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20542 if (index < 0 || index >= static_cast<int>(entries_.size())) {
543 NOTREACHED();
544 return;
545 }
546
[email protected]cbab76d2008-10-13 22:42:47547 if (transient_entry_index_ != -1) {
548 if (index == transient_entry_index_) {
549 // Nothing to do when navigating to the transient.
550 return;
551 }
552 if (index > transient_entry_index_) {
553 // Removing the transient is goint to shift all entries by 1.
554 index--;
555 }
556 }
557
558 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20559
560 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25561 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21562 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51563 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21564 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16565 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20566}
567
[email protected]d202a7c2012-01-04 07:53:47568void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03569 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20570 return;
571
[email protected]9ba14052012-06-22 23:50:03572 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20573}
574
[email protected]d202a7c2012-01-04 07:53:47575void NavigationControllerImpl::RemoveEntryAtIndex(int index) {
[email protected]6a13a6c2011-12-20 21:47:12576 if (index == last_committed_entry_index_)
577 return;
578
[email protected]43032342011-03-21 14:10:31579 RemoveEntryAtIndexInternal(index);
[email protected]cbab76d2008-10-13 22:42:47580}
581
[email protected]d202a7c2012-01-04 07:53:47582void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23583 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32584 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31585 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51586 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
587 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32588 }
589}
590
[email protected]d202a7c2012-01-04 07:53:47591void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47592 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21593 const Referrer& referrer,
594 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47595 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47596 LoadURLParams params(url);
597 params.referrer = referrer;
598 params.transition_type = transition;
599 params.extra_headers = extra_headers;
600 LoadURLWithParams(params);
601}
602
603void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]8ff00d72012-10-23 19:12:21604 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18605 return;
606
[email protected]cf002332012-08-14 19:17:47607 // Checks based on params.load_type.
608 switch (params.load_type) {
609 case LOAD_TYPE_DEFAULT:
610 break;
611 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
612 if (!params.url.SchemeIs(chrome::kHttpScheme) &&
613 !params.url.SchemeIs(chrome::kHttpsScheme)) {
614 NOTREACHED() << "Http post load must use http(s) scheme.";
615 return;
616 }
617 break;
618 case LOAD_TYPE_DATA:
619 if (!params.url.SchemeIs(chrome::kDataScheme)) {
620 NOTREACHED() << "Data load must use data scheme.";
621 return;
622 }
623 break;
624 default:
625 NOTREACHED();
626 break;
627 };
[email protected]e47ae9472011-10-13 19:48:34628
[email protected]e47ae9472011-10-13 19:48:34629 // The user initiated a load, we don't need to reload anymore.
630 needs_reload_ = false;
631
[email protected]cf002332012-08-14 19:17:47632 bool override = false;
633 switch (params.override_user_agent) {
634 case UA_OVERRIDE_INHERIT:
635 override = ShouldKeepOverride(GetLastCommittedEntry());
636 break;
637 case UA_OVERRIDE_TRUE:
638 override = true;
639 break;
640 case UA_OVERRIDE_FALSE:
641 override = false;
642 break;
643 default:
644 NOTREACHED();
645 break;
[email protected]d1ef81d2012-07-24 11:39:36646 }
647
[email protected]d1ef81d2012-07-24 11:39:36648 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
649 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47650 params.url,
651 params.referrer,
652 params.transition_type,
653 params.is_renderer_initiated,
654 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36655 browser_context_));
[email protected]e2caa032012-11-15 23:29:18656 if (params.is_cross_site_redirect)
657 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13658 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47659 entry->SetIsOverridingUserAgent(override);
660 entry->set_transferred_global_request_id(
661 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37662 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36663
[email protected]cf002332012-08-14 19:17:47664 switch (params.load_type) {
665 case LOAD_TYPE_DEFAULT:
666 break;
667 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
668 entry->SetHasPostData(true);
669 entry->SetBrowserInitiatedPostData(
670 params.browser_initiated_post_data);
671 break;
672 case LOAD_TYPE_DATA:
673 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
674 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37675 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47676 break;
677 default:
678 NOTREACHED();
679 break;
680 };
[email protected]132e281a2012-07-31 18:32:44681
682 LoadEntry(entry);
683}
684
[email protected]d202a7c2012-01-04 07:53:47685bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43686 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8ff00d72012-10-23 19:12:21687 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31688 is_initial_navigation_ = false;
689
[email protected]0e8db942008-09-24 21:21:48690 // Save the previous state before we clobber it.
691 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51692 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55693 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48694 } else {
695 details->previous_url = GURL();
696 details->previous_entry_index = -1;
697 }
[email protected]ecd9d8702008-08-28 22:10:17698
[email protected]77362eb2011-08-01 17:18:38699 // If we have a pending entry at this point, it should have a SiteInstance.
700 // Restored entries start out with a null SiteInstance, but we should have
701 // assigned one in NavigateToPendingEntry.
702 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43703
[email protected]bcd904482012-02-01 01:54:22704 // If we are doing a cross-site reload, we need to replace the existing
705 // navigation entry, not add another entry to the history. This has the side
706 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18707 // Or if we are doing a cross-site redirect navigation,
708 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59709 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18710 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22711
[email protected]192d8c5e2010-02-23 07:26:32712 // is_in_page must be computed before the entry gets committed.
[email protected]ce760d742012-08-30 22:31:10713 details->is_in_page = IsURLInPageNavigation(
714 params.url, params.was_within_same_page);
[email protected]192d8c5e2010-02-23 07:26:32715
[email protected]e9ba4472008-09-14 15:42:43716 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48717 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20718
[email protected]0e8db942008-09-24 21:21:48719 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21720 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59721 RendererDidNavigateToNewPage(params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43722 break;
[email protected]8ff00d72012-10-23 19:12:21723 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43724 RendererDidNavigateToExistingPage(params);
725 break;
[email protected]8ff00d72012-10-23 19:12:21726 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43727 RendererDidNavigateToSamePage(params);
728 break;
[email protected]8ff00d72012-10-23 19:12:21729 case NAVIGATION_TYPE_IN_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59730 RendererDidNavigateInPage(params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43731 break;
[email protected]8ff00d72012-10-23 19:12:21732 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43733 RendererDidNavigateNewSubframe(params);
734 break;
[email protected]8ff00d72012-10-23 19:12:21735 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43736 if (!RendererDidNavigateAutoSubframe(params))
737 return false;
738 break;
[email protected]8ff00d72012-10-23 19:12:21739 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49740 // If a pending navigation was in progress, this canceled it. We should
741 // discard it and make sure it is removed from the URL bar. After that,
742 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43743 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49744 if (pending_entry_) {
745 DiscardNonCommittedEntries();
[email protected]8ff00d72012-10-23 19:12:21746 web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49747 }
[email protected]e9ba4472008-09-14 15:42:43748 return false;
749 default:
750 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20751 }
752
[email protected]688aa65c62012-09-28 04:32:22753 // At this point, we know that the navigation has just completed, so
754 // record the time.
755 //
756 // TODO(akalin): Use "sane time" as described in
757 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33758 base::Time timestamp =
759 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
760 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22761 << timestamp.ToInternalValue();
762
[email protected]f233e4232013-02-23 00:55:14763 // We should not have a pending entry anymore. Clear it again in case any
764 // error cases above forgot to do so.
765 DiscardNonCommittedEntriesInternal();
766
[email protected]e9ba4472008-09-14 15:42:43767 // All committed entries should have nonempty content state so WebKit doesn't
768 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04769 DCHECK(params.page_state.IsValid());
[email protected]10f417c52011-12-28 21:04:23770 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14771 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22772 active_entry->SetTimestamp(timestamp);
[email protected]691aa2f2013-05-28 22:52:04773 active_entry->SetPageState(params.page_state);
[email protected]132e281a2012-07-31 18:32:44774 // No longer needed since content state will hold the post data if any.
775 active_entry->SetBrowserInitiatedPostData(NULL);
776
[email protected]e47ae9472011-10-13 19:48:34777 // Once committed, we do not need to track if the entry was initiated by
778 // the renderer.
779 active_entry->set_is_renderer_initiated(false);
780
[email protected]60d6cca2013-04-30 08:47:13781 // Once committed, we no longer need to track whether the session history was
782 // cleared. Navigating to this entry again shouldn't clear it again.
783 active_entry->set_should_clear_history_list(false);
784
[email protected]49bd30e62011-03-22 20:12:59785 // The active entry's SiteInstance should match our SiteInstance.
[email protected]f233e4232013-02-23 00:55:14786 CHECK(active_entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59787
[email protected]b26de072013-02-23 02:33:44788 // Remember the bindings the renderer process has at this point, so that
789 // we do not grant this entry additional bindings if we come back to it.
790 active_entry->SetBindings(
791 web_contents_->GetRenderViewHost()->GetEnabledBindings());
792
[email protected]e9ba4472008-09-14 15:42:43793 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00794 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58795 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21796 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24797 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31798 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00799 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29800
[email protected]e9ba4472008-09-14 15:42:43801 return true;
initial.commit09911bf2008-07-26 23:55:29802}
803
[email protected]8ff00d72012-10-23 19:12:21804NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43805 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43806 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46807 // The renderer generates the page IDs, and so if it gives us the invalid
808 // page ID (-1) we know it didn't actually navigate. This happens in a few
809 // cases:
810 //
811 // - If a page makes a popup navigated to about blank, and then writes
812 // stuff like a subframe navigated to a real page. We'll get the commit
813 // for the subframe, but there won't be any commit for the outer page.
814 //
815 // - We were also getting these for failed loads (for example, bug 21849).
816 // The guess is that we get a "load commit" for the alternate error page,
817 // but that doesn't affect the page ID, so we get the "old" one, which
818 // could be invalid. This can also happen for a cross-site transition
819 // that causes us to swap processes. Then the error page load will be in
820 // a new process with no page IDs ever assigned (and hence a -1 value),
821 // yet the navigation controller still might have previous pages in its
822 // list.
823 //
824 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21825 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43826 }
827
[email protected]2db9bd72012-04-13 20:20:56828 if (params.page_id > web_contents_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43829 // Greater page IDs than we've ever seen before are new pages. We may or may
830 // not have a pending entry for the page, and this may or may not be the
831 // main frame.
[email protected]8ff00d72012-10-23 19:12:21832 if (PageTransitionIsMainFrame(params.transition))
833 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09834
835 // When this is a new subframe navigation, we should have a committed page
836 // for which it's a suframe in. This may not be the case when an iframe is
837 // navigated on a popup navigated to about:blank (the iframe would be
838 // written into the popup by script on the main page). For these cases,
839 // there isn't any navigation stuff we can do, so just ignore it.
840 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21841 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09842
843 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21844 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43845 }
846
[email protected]60d6cca2013-04-30 08:47:13847 // We only clear the session history when navigating to a new page.
848 DCHECK(!params.history_list_was_cleared);
849
[email protected]e9ba4472008-09-14 15:42:43850 // Now we know that the notification is for an existing page. Find that entry.
851 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:56852 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43853 params.page_id);
854 if (existing_entry_index == -1) {
855 // The page was not found. It could have been pruned because of the limit on
856 // back/forward entries (not likely since we'll usually tell it to navigate
857 // to such entries). It could also mean that the renderer is smoking crack.
858 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46859
860 // Because the unknown entry has committed, we risk showing the wrong URL in
861 // release builds. Instead, we'll kill the renderer process to be safe.
862 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]8ff00d72012-10-23 19:12:21863 RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52864
[email protected]7ec6f382011-11-11 01:28:17865 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10866 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
867 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17868 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52869 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17870 temp.append("#max");
[email protected]2db9bd72012-04-13 20:20:56871 temp.append(base::IntToString(web_contents_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17872 temp.append("#frame");
873 temp.append(base::IntToString(params.frame_id));
874 temp.append("#ids");
875 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10876 // Append entry metadata (e.g., 3_7x):
877 // 3: page_id
878 // 7: SiteInstance ID, or N for null
879 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51880 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10881 temp.append("_");
882 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33883 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17884 else
[email protected]8c380582011-12-02 03:16:10885 temp.append("N");
[email protected]2db9bd72012-04-13 20:20:56886 if (entries_[i]->site_instance() != web_contents_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17887 temp.append("x");
888 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52889 }
890 GURL url(temp);
[email protected]9f76c1e2012-03-05 15:15:58891 static_cast<RenderViewHostImpl*>(
[email protected]2db9bd72012-04-13 20:20:56892 web_contents_->GetRenderViewHost())->Send(
[email protected]9f76c1e2012-03-05 15:15:58893 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21894 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43895 }
[email protected]10f417c52011-12-28 21:04:23896 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43897
[email protected]8ff00d72012-10-23 19:12:21898 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52899 // All manual subframes would get new IDs and were handled above, so we
900 // know this is auto. Since the current page was found in the navigation
901 // entry list, we're guaranteed to have a last committed entry.
902 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21903 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52904 }
905
906 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43907 if (pending_entry_ &&
[email protected]e9ba4472008-09-14 15:42:43908 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51909 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24910 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43911 // In this case, we have a pending entry for a URL but WebCore didn't do a
912 // new navigation. This happens when you press enter in the URL bar to
913 // reload. We will create a pending entry, but WebKit will convert it to
914 // a reload since it's the same page and not create a new entry for it
915 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24916 // this). If this matches the last committed entry, we want to just ignore
917 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21918 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43919 }
920
[email protected]fc60f222008-12-18 17:36:54921 // Any toplevel navigations with the same base (minus the reference fragment)
922 // are in-page navigations. We weeded out subframe navigations above. Most of
923 // the time this doesn't matter since WebKit doesn't tell us about subframe
924 // navigations that don't actually navigate, but it can happen when there is
925 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59926 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
927 params.was_within_same_page)) {
[email protected]8ff00d72012-10-23 19:12:21928 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59929 }
[email protected]fc60f222008-12-18 17:36:54930
[email protected]e9ba4472008-09-14 15:42:43931 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09932 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21933 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43934}
935
[email protected]d202a7c2012-01-04 07:53:47936bool NavigationControllerImpl::IsRedirect(
[email protected]09b8f82f2009-06-16 20:22:11937 const ViewHostMsg_FrameNavigate_Params& params) {
938 // For main frame transition, we judge by params.transition.
939 // Otherwise, by params.redirects.
[email protected]8ff00d72012-10-23 19:12:21940 if (PageTransitionIsMainFrame(params.transition)) {
941 return PageTransitionIsRedirect(params.transition);
[email protected]09b8f82f2009-06-16 20:22:11942 }
943 return params.redirects.size() > 1;
944}
945
[email protected]d202a7c2012-01-04 07:53:47946void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]e6fec472013-05-14 05:29:02947 const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23948 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41949 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34950 // Only make a copy of the pending entry if it is appropriate for the new page
951 // that was just loaded. We verify this at a coarse grain by checking that
952 // the SiteInstance hasn't been assigned to something else.
953 if (pending_entry_ &&
954 (!pending_entry_->site_instance() ||
955 pending_entry_->site_instance() == web_contents_->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:23956 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43957
958 // Don't use the page type from the pending entry. Some interstitial page
959 // may have set the type to interstitial. Once we commit, however, the page
960 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:21961 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:41962 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:43963 } else {
[email protected]10f417c52011-12-28 21:04:23964 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:24965
966 // Find out whether the new entry needs to update its virtual URL on URL
967 // change and set up the entry accordingly. This is needed to correctly
968 // update the virtual URL when replaceState is called after a pushState.
969 GURL url = params.url;
970 bool needs_update = false;
971 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
972 &url, browser_context_, &needs_update);
973 new_entry->set_update_virtual_url_with_url(needs_update);
974
[email protected]f1eb87a2011-05-06 17:49:41975 // When navigating to a new page, give the browser URL handler a chance to
976 // update the virtual URL based on the new URL. For example, this is needed
977 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
978 // the URL.
[email protected]f8f93eb2012-09-25 03:06:24979 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:43980 }
981
[email protected]ad23a092011-12-28 07:02:04982 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:41983 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:32984 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:25985 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:51986 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:25987 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:33988 new_entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:56989 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:51990 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:05991 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:23992 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:22993 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:43994
[email protected]60d6cca2013-04-30 08:47:13995 DCHECK(!params.history_list_was_cleared || !replace_entry);
996 // The browser requested to clear the session history when it initiated the
997 // navigation. Now we know that the renderer has updated its state accordingly
998 // and it is safe to also clear the browser side history.
999 if (params.history_list_was_cleared) {
1000 DiscardNonCommittedEntriesInternal();
1001 entries_.clear();
1002 last_committed_entry_index_ = -1;
1003 }
1004
[email protected]4ac5fbe2012-09-01 02:19:591005 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:431006}
1007
[email protected]d202a7c2012-01-04 07:53:471008void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:431009 const ViewHostMsg_FrameNavigate_Params& params) {
1010 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:211011 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:431012
1013 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091014 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1015 // with new information from the renderer.
[email protected]2db9bd72012-04-13 20:20:561016 int entry_index = GetEntryIndexWithPageID(web_contents_->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111017 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431018 DCHECK(entry_index >= 0 &&
1019 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231020 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431021
[email protected]5ccd4dc2012-10-24 02:28:141022 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041023 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:321024 if (entry->update_virtual_url_with_url())
1025 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141026
1027 // The redirected to page should not inherit the favicon from the previous
1028 // page.
1029 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481030 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141031
1032 // The site instance will normally be the same except during session restore,
1033 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431034 DCHECK(entry->site_instance() == NULL ||
[email protected]2db9bd72012-04-13 20:20:561035 entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331036 entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:561037 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431038
[email protected]36fc0392011-12-25 03:59:511039 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051040 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411041
[email protected]e9ba4472008-09-14 15:42:431042 // The entry we found in the list might be pending if the user hit
1043 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591044 // list, we can just discard the pending pointer). We should also discard the
1045 // pending entry if it corresponds to a different navigation, since that one
1046 // is now likely canceled. If it is not canceled, we will treat it as a new
1047 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431048 //
1049 // Note that we need to use the "internal" version since we don't want to
1050 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491051 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391052
[email protected]80858db52009-10-15 00:35:181053 // If a transient entry was removed, the indices might have changed, so we
1054 // have to query the entry index again.
1055 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561056 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431057}
1058
[email protected]d202a7c2012-01-04 07:53:471059void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:431060 const ViewHostMsg_FrameNavigate_Params& params) {
1061 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091062 // entry for this page ID. This entry is guaranteed to exist by
1063 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231064 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561065 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431066
1067 // We assign the entry's unique ID to be that of the new one. Since this is
1068 // always the result of a user action, we want to dismiss infobars, etc. like
1069 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511070 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431071
[email protected]a0e69262009-06-03 19:08:481072 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321073 if (existing_entry->update_virtual_url_with_url())
1074 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041075 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481076
[email protected]cbab76d2008-10-13 22:42:471077 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431078}
1079
[email protected]d202a7c2012-01-04 07:53:471080void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:471081 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211082 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431083 "WebKit should only tell us about in-page navs for the main frame.";
1084 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231085 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561086 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431087
1088 // Reference fragment navigation. We're guaranteed to have the last_committed
1089 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031090 // reference fragments, of course). We'll update the URL of the existing
1091 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041092 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031093 if (existing_entry->update_virtual_url_with_url())
1094 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431095
1096 // This replaces the existing entry since the page ID didn't change.
1097 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031098
[email protected]6eebaab2012-11-15 04:39:491099 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031100
1101 // If a transient entry was removed, the indices might have changed, so we
1102 // have to query the entry index again.
1103 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561104 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431105}
1106
[email protected]d202a7c2012-01-04 07:53:471107void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:431108 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]8ff00d72012-10-23 19:12:211109 if (PageTransitionStripQualifier(params.transition) ==
1110 PAGE_TRANSITION_AUTO_SUBFRAME) {
[email protected]09b8f82f2009-06-16 20:22:111111 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141112 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111113 return;
1114 }
[email protected]09b8f82f2009-06-16 20:22:111115
[email protected]e9ba4472008-09-14 15:42:431116 // Manual subframe navigations just get the current entry cloned so the user
1117 // can go back or forward to it. The actual subframe information will be
1118 // stored in the page state for each of those entries. This happens out of
1119 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091120 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1121 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231122 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1123 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511124 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451125 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431126}
1127
[email protected]d202a7c2012-01-04 07:53:471128bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:431129 const ViewHostMsg_FrameNavigate_Params& params) {
1130 // We're guaranteed to have a previously committed entry, and we now need to
1131 // handle navigation inside of a subframe in it without creating a new entry.
1132 DCHECK(GetLastCommittedEntry());
1133
1134 // Handle the case where we're navigating back/forward to a previous subframe
1135 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1136 // header file. In case "1." this will be a NOP.
1137 int entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:561138 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431139 params.page_id);
1140 if (entry_index < 0 ||
1141 entry_index >= static_cast<int>(entries_.size())) {
1142 NOTREACHED();
1143 return false;
1144 }
1145
1146 // Update the current navigation entry in case we're going back/forward.
1147 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431148 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141149 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431150 return true;
1151 }
[email protected]f233e4232013-02-23 00:55:141152
1153 // We do not need to discard the pending entry in this case, since we will
1154 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431155 return false;
1156}
1157
[email protected]d202a7c2012-01-04 07:53:471158int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231159 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201160 const NavigationEntries::const_iterator i(std::find(
1161 entries_.begin(),
1162 entries_.end(),
1163 entry));
1164 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1165}
1166
[email protected]ce760d742012-08-30 22:31:101167bool NavigationControllerImpl::IsURLInPageNavigation(
1168 const GURL& url, bool renderer_says_in_page) const {
[email protected]10f417c52011-12-28 21:04:231169 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101170 return last_committed && AreURLsInPageNavigation(
1171 last_committed->GetURL(), url, renderer_says_in_page);
[email protected]e9ba4472008-09-14 15:42:431172}
1173
[email protected]d202a7c2012-01-04 07:53:471174void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501175 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471176 const NavigationControllerImpl& source =
1177 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571178 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551179 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571180
[email protected]a26023822011-12-29 00:23:551181 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571182 return; // Nothing new to do.
1183
1184 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551185 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571186
[email protected]d1198fd2012-08-13 22:50:191187 for (SessionStorageNamespaceMap::const_iterator it =
1188 source.session_storage_namespace_map_.begin();
1189 it != source.session_storage_namespace_map_.end();
1190 ++it) {
1191 SessionStorageNamespaceImpl* source_namespace =
1192 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1193 session_storage_namespace_map_.insert(
1194 make_pair(it->first, source_namespace->Clone()));
1195 }
[email protected]4e6419c2010-01-15 04:50:341196
[email protected]2ca1ea662012-10-04 02:26:361197 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571198
1199 // Copy the max page id map from the old tab to the new tab. This ensures
1200 // that new and existing navigations in the tab's current SiteInstances
1201 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561202 web_contents_->CopyMaxPageIDsFrom(source.web_contents());
[email protected]ce3fa3c2009-04-20 19:55:571203}
1204
[email protected]d202a7c2012-01-04 07:53:471205void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501206 NavigationController* temp) {
[email protected]d202a7c2012-01-04 07:53:471207 NavigationControllerImpl* source =
1208 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191209 // The SiteInstance and page_id of the last committed entry needs to be
1210 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571211 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1212 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231213 NavigationEntryImpl* last_committed =
1214 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571215 scoped_refptr<SiteInstance> site_instance(
1216 last_committed ? last_committed->site_instance() : NULL);
[email protected]36fc0392011-12-25 03:59:511217 int32 minimum_page_id = last_committed ? last_committed->GetPageID() : -1;
[email protected]91854cd2012-01-10 19:43:571218 int32 max_page_id = last_committed ?
[email protected]2db9bd72012-04-13 20:20:561219 web_contents_->GetMaxPageIDForSiteInstance(site_instance.get()) : -1;
[email protected]9e1ad4b2011-08-14 16:49:191220
[email protected]e1cd5452010-08-26 18:03:251221 // This code is intended for use when the last entry is the active entry.
[email protected]a26023822011-12-29 00:23:551222 DCHECK(
1223 (transient_entry_index_ != -1 &&
[email protected]91854cd2012-01-10 19:43:571224 transient_entry_index_ == GetEntryCount() - 1) ||
[email protected]a26023822011-12-29 00:23:551225 (pending_entry_ && (pending_entry_index_ == -1 ||
1226 pending_entry_index_ == GetEntryCount() - 1)) ||
1227 (!pending_entry_ && last_committed_entry_index_ == GetEntryCount() - 1));
[email protected]e1cd5452010-08-26 18:03:251228
1229 // Remove all the entries leaving the active entry.
[email protected]9350602e2013-02-26 23:27:441230 PruneAllButActiveInternal();
[email protected]e1cd5452010-08-26 18:03:251231
[email protected]944822b2012-03-02 20:57:251232 // We now have zero or one entries. Ensure that adding the entries from
1233 // source won't put us over the limit.
1234 DCHECK(GetEntryCount() == 0 || GetEntryCount() == 1);
1235 if (GetEntryCount() > 0)
1236 source->PruneOldestEntryIfFull();
1237
[email protected]47e020a2010-10-15 14:43:371238 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]e1cd5452010-08-26 18:03:251239 // we don't want to copy over the transient entry.
[email protected]47e020a2010-10-15 14:43:371240 int max_source_index = source->pending_entry_index_ != -1 ?
1241 source->pending_entry_index_ : source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251242 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551243 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251244 else
1245 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371246 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251247
1248 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551249 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251250 if (pending_entry_index_ != -1)
[email protected]a26023822011-12-29 00:23:551251 pending_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251252 if (transient_entry_index_ != -1) {
1253 // There's a transient entry. In this case we want the last committed to
1254 // point to the previous entry.
[email protected]a26023822011-12-29 00:23:551255 transient_entry_index_ = GetEntryCount() - 1;
[email protected]e1cd5452010-08-26 18:03:251256 if (last_committed_entry_index_ != -1)
1257 last_committed_entry_index_--;
1258 }
[email protected]796931a92011-08-10 01:32:141259
[email protected]2db9bd72012-04-13 20:20:561260 web_contents_->SetHistoryLengthAndPrune(site_instance.get(),
[email protected]9e1ad4b2011-08-14 16:49:191261 max_source_index,
1262 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571263
1264 // Copy the max page id map from the old tab to the new tab. This ensures
1265 // that new and existing navigations in the tab's current SiteInstances
1266 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561267 web_contents_->CopyMaxPageIDsFrom(source->web_contents());
[email protected]91854cd2012-01-10 19:43:571268
1269 // If there is a last committed entry, be sure to include it in the new
1270 // max page ID map.
1271 if (max_page_id > -1) {
[email protected]2db9bd72012-04-13 20:20:561272 web_contents_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
[email protected]91854cd2012-01-10 19:43:571273 max_page_id);
1274 }
[email protected]e1cd5452010-08-26 18:03:251275}
1276
[email protected]d202a7c2012-01-04 07:53:471277void NavigationControllerImpl::PruneAllButActive() {
[email protected]9350602e2013-02-26 23:27:441278 PruneAllButActiveInternal();
1279
1280 // If there is an entry left, we need to update the session history length of
1281 // the RenderView.
[email protected]4f644da32013-03-19 01:44:291282 if (!GetActiveEntry())
[email protected]9350602e2013-02-26 23:27:441283 return;
1284
1285 NavigationEntryImpl* entry =
1286 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
[email protected]9350602e2013-02-26 23:27:441287 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1288 // SetHistoryLengthAndPrune, because it will create history_length additional
1289 // history entries.
1290 // TODO(jochen): This API is confusing and we should clean it up.
1291 // http://crbug.com/178491
1292 web_contents_->SetHistoryLengthAndPrune(
1293 entry->site_instance(), 0, entry->GetPageID());
1294}
1295
1296void NavigationControllerImpl::PruneAllButActiveInternal() {
[email protected]97b6c4f2010-09-27 19:31:261297 if (transient_entry_index_ != -1) {
1298 // There is a transient entry. Prune up to it.
[email protected]a26023822011-12-29 00:23:551299 DCHECK_EQ(GetEntryCount() - 1, transient_entry_index_);
[email protected]77d8d622010-12-15 10:30:121300 entries_.erase(entries_.begin(), entries_.begin() + transient_entry_index_);
[email protected]97b6c4f2010-09-27 19:31:261301 transient_entry_index_ = 0;
1302 last_committed_entry_index_ = -1;
1303 pending_entry_index_ = -1;
1304 } else if (!pending_entry_) {
1305 // There's no pending entry. Leave the last entry (if there is one).
[email protected]a26023822011-12-29 00:23:551306 if (!GetEntryCount())
[email protected]97b6c4f2010-09-27 19:31:261307 return;
1308
[email protected]e6fec472013-05-14 05:29:021309 DCHECK_GE(last_committed_entry_index_, 0);
[email protected]77d8d622010-12-15 10:30:121310 entries_.erase(entries_.begin(),
1311 entries_.begin() + last_committed_entry_index_);
1312 entries_.erase(entries_.begin() + 1, entries_.end());
[email protected]97b6c4f2010-09-27 19:31:261313 last_committed_entry_index_ = 0;
1314 } else if (pending_entry_index_ != -1) {
[email protected]77d8d622010-12-15 10:30:121315 entries_.erase(entries_.begin(), entries_.begin() + pending_entry_index_);
1316 entries_.erase(entries_.begin() + 1, entries_.end());
[email protected]97b6c4f2010-09-27 19:31:261317 pending_entry_index_ = 0;
1318 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261319 } else {
1320 // There is a pending_entry, but it's not in entries_.
1321 pending_entry_index_ = -1;
1322 last_committed_entry_index_ = -1;
[email protected]77d8d622010-12-15 10:30:121323 entries_.clear();
[email protected]97b6c4f2010-09-27 19:31:261324 }
1325
[email protected]2db9bd72012-04-13 20:20:561326 if (web_contents_->GetInterstitialPage()) {
[email protected]97b6c4f2010-09-27 19:31:261327 // Normally the interstitial page hides itself if the user doesn't proceeed.
1328 // This would result in showing a NavigationEntry we just removed. Set this
1329 // so the interstitial triggers a reload if the user doesn't proceed.
[email protected]2db9bd72012-04-13 20:20:561330 static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131331 set_reload_on_dont_proceed(true);
[email protected]97b6c4f2010-09-27 19:31:261332 }
[email protected]97b6c4f2010-09-27 19:31:261333}
1334
[email protected]15f46dc2013-01-24 05:40:241335void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101336 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241337}
1338
[email protected]d1198fd2012-08-13 22:50:191339void NavigationControllerImpl::SetSessionStorageNamespace(
1340 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211341 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191342 if (!session_storage_namespace)
1343 return;
1344
1345 // We can't overwrite an existing SessionStorage without violating spec.
1346 // Attempts to do so may give a tab access to another tab's session storage
1347 // so die hard on an error.
1348 bool successful_insert = session_storage_namespace_map_.insert(
1349 make_pair(partition_id,
1350 static_cast<SessionStorageNamespaceImpl*>(
1351 session_storage_namespace)))
1352 .second;
1353 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
1354}
1355
[email protected]d202a7c2012-01-04 07:53:471356void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561357 max_restored_page_id_ = max_id;
1358}
1359
[email protected]d202a7c2012-01-04 07:53:471360int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561361 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551362}
1363
1364SessionStorageNamespace*
[email protected]8ff00d72012-10-23 19:12:211365NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
[email protected]d1198fd2012-08-13 22:50:191366 std::string partition_id;
1367 if (instance) {
1368 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1369 // this if statement so |instance| must not be NULL.
1370 partition_id =
[email protected]e94bbcb2012-09-07 05:33:571371 GetContentClient()->browser()->GetStoragePartitionIdForSite(
[email protected]77ab17312012-09-28 15:34:591372 browser_context_, instance->GetSiteURL());
[email protected]d1198fd2012-08-13 22:50:191373 }
1374
1375 SessionStorageNamespaceMap::const_iterator it =
1376 session_storage_namespace_map_.find(partition_id);
1377 if (it != session_storage_namespace_map_.end())
1378 return it->second.get();
1379
1380 // Create one if no one has accessed session storage for this partition yet.
[email protected]4c3a23582012-08-18 08:54:341381 //
1382 // TODO(ajwong): Should this use the |partition_id| directly rather than
1383 // re-lookup via |instance|? http://crbug.com/142685
[email protected]8ff00d72012-10-23 19:12:211384 StoragePartition* partition =
[email protected]4c3a23582012-08-18 08:54:341385 BrowserContext::GetStoragePartition(browser_context_, instance);
[email protected]d1198fd2012-08-13 22:50:191386 SessionStorageNamespaceImpl* session_storage_namespace =
1387 new SessionStorageNamespaceImpl(
1388 static_cast<DOMStorageContextImpl*>(
[email protected]4c3a23582012-08-18 08:54:341389 partition->GetDOMStorageContext()));
[email protected]d1198fd2012-08-13 22:50:191390 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1391
1392 return session_storage_namespace;
1393}
1394
1395SessionStorageNamespace*
1396NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1397 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1398 return GetSessionStorageNamespace(NULL);
1399}
1400
1401const SessionStorageNamespaceMap&
1402NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1403 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551404}
[email protected]d202a7c2012-01-04 07:53:471405
1406bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561407 return needs_reload_;
1408}
[email protected]a26023822011-12-29 00:23:551409
[email protected]d202a7c2012-01-04 07:53:471410void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551411 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121412 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311413
1414 DiscardNonCommittedEntries();
1415
1416 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121417 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311418 last_committed_entry_index_--;
1419}
1420
[email protected]d202a7c2012-01-04 07:53:471421void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471422 bool transient = transient_entry_index_ != -1;
1423 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291424
[email protected]cbab76d2008-10-13 22:42:471425 // If there was a transient entry, invalidate everything so the new active
1426 // entry state is shown.
1427 if (transient) {
[email protected]2db9bd72012-04-13 20:20:561428 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471429 }
initial.commit09911bf2008-07-26 23:55:291430}
1431
[email protected]d202a7c2012-01-04 07:53:471432NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251433 return pending_entry_;
1434}
1435
[email protected]d202a7c2012-01-04 07:53:471436int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551437 return pending_entry_index_;
1438}
1439
[email protected]d202a7c2012-01-04 07:53:471440void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1441 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211442 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201443
1444 // Copy the pending entry's unique ID to the committed entry.
1445 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231446 const NavigationEntryImpl* const pending_entry =
1447 (pending_entry_index_ == -1) ?
1448 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201449 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511450 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201451
[email protected]cbab76d2008-10-13 22:42:471452 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201453
1454 int current_size = static_cast<int>(entries_.size());
1455
[email protected]765b35502008-08-21 00:51:201456 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451457 // Prune any entries which are in front of the current entry.
1458 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311459 // last_committed_entry_index_ must be updated here since calls to
1460 // NotifyPrunedEntries() below may re-enter and we must make sure
1461 // last_committed_entry_index_ is not left in an invalid state.
1462 if (replace)
1463 --last_committed_entry_index_;
1464
[email protected]c12bf1a12008-09-17 16:28:491465 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311466 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491467 num_pruned++;
[email protected]765b35502008-08-21 00:51:201468 entries_.pop_back();
1469 current_size--;
1470 }
[email protected]c12bf1a12008-09-17 16:28:491471 if (num_pruned > 0) // Only notify if we did prune something.
1472 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201473 }
1474
[email protected]944822b2012-03-02 20:57:251475 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201476
[email protected]10f417c52011-12-28 21:04:231477 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201478 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431479
1480 // This is a new page ID, so we need everybody to know about it.
[email protected]2db9bd72012-04-13 20:20:561481 web_contents_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291482}
1483
[email protected]944822b2012-03-02 20:57:251484void NavigationControllerImpl::PruneOldestEntryIfFull() {
1485 if (entries_.size() >= max_entry_count()) {
1486 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021487 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251488 RemoveEntryAtIndex(0);
1489 NotifyPrunedEntries(this, true, 1);
1490 }
1491}
1492
[email protected]d202a7c2012-01-04 07:53:471493void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011494 needs_reload_ = false;
1495
[email protected]83c2e232011-10-07 21:36:461496 // If we were navigating to a slow-to-commit page, and the user performs
1497 // a session history navigation to the last committed page, RenderViewHost
1498 // will force the throbber to start, but WebKit will essentially ignore the
1499 // navigation, and won't send a message to stop the throbber. To prevent this
1500 // from happening, we drop the navigation here and stop the slow-to-commit
1501 // page from loading (which would normally happen during the navigation).
1502 if (pending_entry_index_ != -1 &&
1503 pending_entry_index_ == last_committed_entry_index_ &&
1504 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231505 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511506 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211507 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]2db9bd72012-04-13 20:20:561508 web_contents_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121509
1510 // If an interstitial page is showing, we want to close it to get back
1511 // to what was showing before.
[email protected]2db9bd72012-04-13 20:20:561512 if (web_contents_->GetInterstitialPage())
1513 web_contents_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121514
[email protected]83c2e232011-10-07 21:36:461515 DiscardNonCommittedEntries();
1516 return;
1517 }
1518
[email protected]6a13a6c2011-12-20 21:47:121519 // If an interstitial page is showing, the previous renderer is blocked and
1520 // cannot make new requests. Unblock (and disable) it to allow this
1521 // navigation to succeed. The interstitial will stay visible until the
1522 // resulting DidNavigate.
[email protected]2db9bd72012-04-13 20:20:561523 if (web_contents_->GetInterstitialPage()) {
1524 static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131525 CancelForNavigation();
1526 }
[email protected]6a13a6c2011-12-20 21:47:121527
initial.commit09911bf2008-07-26 23:55:291528 // For session history navigations only the pending_entry_index_ is set.
1529 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201530 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201531 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291532 }
1533
[email protected]2db9bd72012-04-13 20:20:561534 if (!web_contents_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471535 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381536
1537 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1538 // it in now that we know. This allows us to find the entry when it commits.
1539 // This works for browser-initiated navigations. We handle renderer-initiated
[email protected]2db9bd72012-04-13 20:20:561540 // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset.
[email protected]77362eb2011-08-01 17:18:381541 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231542 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331543 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]2db9bd72012-04-13 20:20:561544 web_contents_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231545 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381546 }
initial.commit09911bf2008-07-26 23:55:291547}
1548
[email protected]d202a7c2012-01-04 07:53:471549void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211550 LoadCommittedDetails* details) {
[email protected]df1af242009-05-01 00:11:401551 details->entry = GetActiveEntry();
[email protected]8ff00d72012-10-23 19:12:211552 NotificationDetails notification_details =
1553 Details<LoadCommittedDetails>(details);
[email protected]df1af242009-05-01 00:11:401554
[email protected]2db9bd72012-04-13 20:20:561555 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401556 // location bar will have up-to-date information about the security style
1557 // when it wants to draw. See http://crbug.com/11157
1558 ssl_manager_.DidCommitProvisionalLoad(notification_details);
1559
initial.commit09911bf2008-07-26 23:55:291560 // TODO(pkasting): http://b/1113079 Probably these explicit notification paths
1561 // should be removed, and interested parties should just listen for the
1562 // notification below instead.
[email protected]2db9bd72012-04-13 20:20:561563 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
initial.commit09911bf2008-07-26 23:55:291564
[email protected]8ff00d72012-10-23 19:12:211565 NotificationService::current()->Notify(
1566 NOTIFICATION_NAV_ENTRY_COMMITTED,
1567 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401568 notification_details);
initial.commit09911bf2008-07-26 23:55:291569}
1570
initial.commit09911bf2008-07-26 23:55:291571// static
[email protected]d202a7c2012-01-04 07:53:471572size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231573 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1574 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211575 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231576}
1577
[email protected]d202a7c2012-01-04 07:53:471578void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221579 if (is_active && needs_reload_)
1580 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291581}
1582
[email protected]d202a7c2012-01-04 07:53:471583void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291584 if (!needs_reload_)
1585 return;
1586
initial.commit09911bf2008-07-26 23:55:291587 // Calling Reload() results in ignoring state, and not loading.
1588 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1589 // cached state.
1590 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161591 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291592}
1593
[email protected]d202a7c2012-01-04 07:53:471594void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1595 int index) {
[email protected]8ff00d72012-10-23 19:12:211596 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091597 det.changed_entry = entry;
1598 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211599 NotificationService::current()->Notify(
1600 NOTIFICATION_NAV_ENTRY_CHANGED,
1601 Source<NavigationController>(this),
1602 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291603}
1604
[email protected]d202a7c2012-01-04 07:53:471605void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361606 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551607 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361608 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291609
[email protected]71fde352011-12-29 03:29:561610 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291611
1612 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291613}
[email protected]765b35502008-08-21 00:51:201614
[email protected]d202a7c2012-01-04 07:53:471615void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]765b35502008-08-21 00:51:201616 if (pending_entry_index_ == -1)
1617 delete pending_entry_;
1618 pending_entry_ = NULL;
1619 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471620
1621 DiscardTransientEntry();
1622}
1623
[email protected]d202a7c2012-01-04 07:53:471624void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471625 if (transient_entry_index_ == -1)
1626 return;
[email protected]a0e69262009-06-03 19:08:481627 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181628 if (last_committed_entry_index_ > transient_entry_index_)
1629 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471630 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201631}
1632
[email protected]d202a7c2012-01-04 07:53:471633int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111634 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201635 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111636 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511637 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201638 return i;
1639 }
1640 return -1;
1641}
[email protected]cbab76d2008-10-13 22:42:471642
[email protected]d202a7c2012-01-04 07:53:471643NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471644 if (transient_entry_index_ == -1)
1645 return NULL;
1646 return entries_[transient_entry_index_].get();
1647}
[email protected]e1cd5452010-08-26 18:03:251648
[email protected]0b684262013-02-20 02:18:211649void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1650 // Discard any current transient entry, we can only have one at a time.
1651 int index = 0;
1652 if (last_committed_entry_index_ != -1)
1653 index = last_committed_entry_index_ + 1;
1654 DiscardTransientEntry();
1655 entries_.insert(
1656 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1657 NavigationEntryImpl::FromNavigationEntry(entry)));
1658 transient_entry_index_ = index;
1659 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
1660}
1661
[email protected]d202a7c2012-01-04 07:53:471662void NavigationControllerImpl::InsertEntriesFrom(
1663 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251664 int max_index) {
[email protected]a26023822011-12-29 00:23:551665 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251666 size_t insert_index = 0;
1667 for (int i = 0; i < max_index; i++) {
1668 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041669 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211670 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251671 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231672 linked_ptr<NavigationEntryImpl>(
1673 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251674 }
1675 }
1676}
[email protected]c5b88d82012-10-06 17:03:331677
1678void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1679 const base::Callback<base::Time()>& get_timestamp_callback) {
1680 get_timestamp_callback_ = get_timestamp_callback;
1681}
[email protected]8ff00d72012-10-23 19:12:211682
1683} // namespace content