blob: a49a9323fab50297a8f70f8430c0e942d2e9e42a [file] [log] [blame]
[email protected]d4a8ca482013-10-30 21:06:401// Copyright 2013 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
[email protected]d4a8ca482013-10-30 21:06:405#include "content/browser/frame_host/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
[email protected]e11f0e92013-06-12 15:12:038#include "base/debug/trace_event.h"
initial.commit09911bf2008-07-26 23:55:299#include "base/logging.h"
[email protected]348fbaac2013-06-11 06:31:5110#include "base/strings/string_number_conversions.h" // Temporary
11#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0012#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3713#include "base/time/time.h"
[email protected]825b1662012-03-12 19:07:3114#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4115#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0416#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]d4a8ca482013-10-30 21:06:4017#include "content/browser/frame_host/debug_urls.h"
18#include "content/browser/frame_host/interstitial_page_impl.h"
19#include "content/browser/frame_host/navigation_entry_impl.h"
[email protected]d1581d72013-11-05 19:11:2620#include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
[email protected]b3c41c0b2012-03-06 15:48:3221#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3322#include "content/browser/site_instance_impl.h"
[email protected]0aed2f52011-03-23 18:06:3623#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1124#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1925#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4626#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0027#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3828#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1629#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5830#include "content/public/browser/render_widget_host.h"
31#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3432#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3833#include "content/public/browser/user_metrics.h"
[email protected]d1198fd2012-08-13 22:50:1934#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3835#include "content/public/common/content_constants.h"
[email protected]d1ef81d2012-07-24 11:39:3636#include "content/public/common/url_constants.h"
[email protected]a23de8572009-06-03 02:16:3237#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1638#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3239#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5840#include "skia/ext/platform_canvas.h"
initial.commit09911bf2008-07-26 23:55:2941
[email protected]8ff00d72012-10-23 19:12:2142namespace content {
[email protected]e9ba4472008-09-14 15:42:4343namespace {
44
[email protected]93f230e02011-06-01 14:40:0045const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3746
[email protected]e9ba4472008-09-14 15:42:4347// Invoked when entries have been pruned, or removed. For example, if the
48// current entries are [google, digg, yahoo], with the current entry google,
49// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4750void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4951 bool from_front,
52 int count) {
[email protected]8ff00d72012-10-23 19:12:2153 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4954 details.from_front = from_front;
55 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2156 NotificationService::current()->Notify(
57 NOTIFICATION_NAV_LIST_PRUNED,
58 Source<NavigationController>(nav_controller),
59 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4360}
61
62// Ensure the given NavigationEntry has a valid state, so that WebKit does not
63// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3964//
[email protected]e9ba4472008-09-14 15:42:4365// An empty state is treated as a new navigation by WebKit, which would mean
66// losing the navigation entries and generating a new navigation entry after
67// this one. We don't want that. To avoid this we create a valid state which
68// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:0469void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
70 if (!entry->GetPageState().IsValid())
71 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4372}
73
[email protected]2ca1ea662012-10-04 02:26:3674NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
75 NavigationController::RestoreType type) {
76 switch (type) {
77 case NavigationController::RESTORE_CURRENT_SESSION:
78 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
79 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
80 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
81 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
82 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
83 }
84 NOTREACHED();
85 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
86}
87
[email protected]e9ba4472008-09-14 15:42:4388// Configure all the NavigationEntries in entries for restore. This resets
89// the transition type to reload and makes sure the content state isn't empty.
90void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2391 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]2ca1ea662012-10-04 02:26:3692 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:4393 for (size_t i = 0; i < entries->size(); ++i) {
94 // Use a transition type of reload so that we don't incorrectly increase
95 // the typed count.
[email protected]8ff00d72012-10-23 19:12:2196 (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:3697 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:4398 // NOTE(darin): This code is only needed for backwards compat.
[email protected]691aa2f2013-05-28 22:52:0499 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43100 }
101}
102
103// See NavigationController::IsURLInPageNavigation for how this works and why.
[email protected]ce760d742012-08-30 22:31:10104bool AreURLsInPageNavigation(const GURL& existing_url,
105 const GURL& new_url,
[email protected]b9d4dfdc2013-08-08 00:25:12106 bool renderer_says_in_page,
107 NavigationType navigation_type) {
[email protected]ce760d742012-08-30 22:31:10108 if (existing_url == new_url)
109 return renderer_says_in_page;
110
111 if (!new_url.has_ref()) {
[email protected]b9d4dfdc2013-08-08 00:25:12112 // When going back from the ref URL to the non ref one the navigation type
113 // is IN_PAGE.
114 return navigation_type == NAVIGATION_TYPE_IN_PAGE;
[email protected]192d8c5e2010-02-23 07:26:32115 }
[email protected]e9ba4472008-09-14 15:42:43116
117 url_canon::Replacements<char> replacements;
118 replacements.ClearRef();
119 return existing_url.ReplaceComponents(replacements) ==
120 new_url.ReplaceComponents(replacements);
121}
122
[email protected]bf70edce2012-06-20 22:32:22123// Determines whether or not we should be carrying over a user agent override
124// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21125bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22126 return last_entry && last_entry->GetIsOverridingUserAgent();
127}
128
[email protected]e9ba4472008-09-14 15:42:43129} // namespace
130
[email protected]d202a7c2012-01-04 07:53:47131// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29132
[email protected]9b51970d2011-12-09 23:10:23133const size_t kMaxEntryCountForTestingNotSet = -1;
134
[email protected]765b35502008-08-21 00:51:20135// static
[email protected]d202a7c2012-01-04 07:53:47136size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23137 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20138
[email protected]e6fec472013-05-14 05:29:02139// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20140// when testing.
141static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29142
[email protected]71fde352011-12-29 03:29:56143// static
[email protected]cdcb1dee2012-01-04 00:46:20144NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56145 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20146 const Referrer& referrer,
147 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56148 bool is_renderer_initiated,
149 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20150 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56151 // Allow the browser URL handler to rewrite the URL. This will, for example,
152 // remove "view-source:" from the beginning of the URL to get the URL that
153 // will actually be loaded. This real URL won't be shown to the user, just
154 // used internally.
155 GURL loaded_url(url);
156 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31157 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56158 &loaded_url, browser_context, &reverse_on_redirect);
159
160 NavigationEntryImpl* entry = new NavigationEntryImpl(
161 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56162 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56163 -1,
164 loaded_url,
165 referrer,
[email protected]fcf75d42013-12-03 20:11:26166 base::string16(),
[email protected]71fde352011-12-29 03:29:56167 transition,
168 is_renderer_initiated);
169 entry->SetVirtualURL(url);
170 entry->set_user_typed_url(url);
171 entry->set_update_virtual_url_with_url(reverse_on_redirect);
172 entry->set_extra_headers(extra_headers);
173 return entry;
174}
175
[email protected]cdcb1dee2012-01-04 00:46:20176// static
177void NavigationController::DisablePromptOnRepost() {
178 g_check_for_repost = false;
179}
180
[email protected]c5b88d82012-10-06 17:03:33181base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
182 base::Time t) {
183 // If |t| is between the water marks, we're in a run of duplicates
184 // or just getting out of it, so increase the high-water mark to get
185 // a time that probably hasn't been used before and return it.
186 if (low_water_mark_ <= t && t <= high_water_mark_) {
187 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
188 return high_water_mark_;
189 }
190
191 // Otherwise, we're clear of the last duplicate run, so reset the
192 // water marks.
193 low_water_mark_ = high_water_mark_ = t;
194 return t;
195}
196
[email protected]d202a7c2012-01-04 07:53:47197NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57198 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19199 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37200 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20201 pending_entry_(NULL),
202 last_committed_entry_index_(-1),
203 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47204 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57205 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29206 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22207 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57208 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09209 is_initial_navigation_(true),
[email protected]c5b88d82012-10-06 17:03:33210 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31211 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]d1581d72013-11-05 19:11:26212 screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37213 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29214}
215
[email protected]d202a7c2012-01-04 07:53:47216NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47217 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29218}
219
[email protected]d202a7c2012-01-04 07:53:47220WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57221 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32222}
223
[email protected]d202a7c2012-01-04 07:53:47224BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55225 return browser_context_;
226}
227
[email protected]d202a7c2012-01-04 07:53:47228void NavigationControllerImpl::SetBrowserContext(
229 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20230 browser_context_ = browser_context;
231}
232
[email protected]d202a7c2012-01-04 07:53:47233void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30234 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36235 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23236 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57237 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55238 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57239 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14240 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57241
[email protected]ce3fa3c2009-04-20 19:55:57242 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04243 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23244 NavigationEntryImpl* entry =
245 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
246 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04247 }
[email protected]03838e22011-06-06 15:27:14248 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57249
250 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36251 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57252}
253
[email protected]d202a7c2012-01-04 07:53:47254void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16255 ReloadInternal(check_for_repost, RELOAD);
256}
[email protected]d202a7c2012-01-04 07:53:47257void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16258 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
259}
[email protected]7c16976c2012-08-04 02:38:23260void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
261 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
262}
[email protected]1ccb3568d2010-02-19 10:51:16263
[email protected]d202a7c2012-01-04 07:53:47264void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
265 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36266 if (transient_entry_index_ != -1) {
267 // If an interstitial is showing, treat a reload as a navigation to the
268 // transient entry's URL.
[email protected]6286a3792013-10-09 04:03:27269 NavigationEntryImpl* transient_entry =
270 NavigationEntryImpl::FromNavigationEntry(GetTransientEntry());
271 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36272 return;
[email protected]6286a3792013-10-09 04:03:27273 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21274 Referrer(),
275 PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27276 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47277 return;
[email protected]669e0ba2012-08-30 23:57:36278 }
[email protected]cbab76d2008-10-13 22:42:47279
[email protected]59167c22013-06-03 18:07:32280 NavigationEntryImpl* entry = NULL;
281 int current_index = -1;
282
283 // If we are reloading the initial navigation, just use the current
284 // pending entry. Otherwise look up the current entry.
285 if (IsInitialNavigation() && pending_entry_) {
286 entry = pending_entry_;
287 // The pending entry might be in entries_ (e.g., after a Clone), so we
288 // should also update the current_index.
289 current_index = pending_entry_index_;
290 } else {
291 DiscardNonCommittedEntriesInternal();
292 current_index = GetCurrentEntryIndex();
293 if (current_index != -1) {
294 entry = NavigationEntryImpl::FromNavigationEntry(
295 GetEntryAtIndex(current_index));
296 }
[email protected]979a4bc2013-04-24 01:27:15297 }
[email protected]241db352013-04-22 18:04:05298
[email protected]59167c22013-06-03 18:07:32299 // If we are no where, then we can't reload. TODO(darin): We should add a
300 // CanReload method.
301 if (!entry)
302 return;
303
[email protected]eaaba7dd2013-10-14 02:38:07304 if (reload_type == NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL &&
305 entry->GetOriginalRequestURL().is_valid() && !entry->GetHasPostData()) {
306 // We may have been redirected when navigating to the current URL.
307 // Use the URL the user originally intended to visit, if it's valid and if a
308 // POST wasn't involved; the latter case avoids issues with sending data to
309 // the wrong page.
310 entry->SetURL(entry->GetOriginalRequestURL());
311 }
312
[email protected]cdcb1dee2012-01-04 00:46:20313 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32314 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30315 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07316 // they really want to do this. If they do, the dialog will call us back
317 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57318 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02319
[email protected]106a0812010-03-18 00:15:12320 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57321 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29322 } else {
[email protected]59167c22013-06-03 18:07:32323 if (!IsInitialNavigation())
324 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26325
[email protected]bcd904482012-02-01 01:54:22326 // If we are reloading an entry that no longer belongs to the current
327 // site instance (for example, refreshing a page for just installed app),
328 // the reload must happen in a new process.
329 // The new entry must have a new page_id and site instance, so it behaves
330 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30331 // Tabs that are discarded due to low memory conditions may not have a site
332 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32333 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]7e58cb272012-03-30 21:22:30334 if (site_instance &&
335 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22336 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22337 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22338 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
339 CreateNavigationEntry(
340 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
341 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26342
[email protected]11535962012-02-09 21:02:10343 // Mark the reload type as NO_RELOAD, so navigation will not be considered
344 // a reload in the renderer.
345 reload_type = NavigationController::NO_RELOAD;
346
[email protected]e2caa032012-11-15 23:29:18347 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22348 pending_entry_ = nav_entry;
349 } else {
[email protected]59167c22013-06-03 18:07:32350 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22351 pending_entry_index_ = current_index;
352
353 // The title of the page being reloaded might have been removed in the
354 // meanwhile, so we need to revert to the default title upon reload and
355 // invalidate the previously cached title (SetTitle will do both).
356 // See Chromium issue 96041.
[email protected]fcf75d42013-12-03 20:11:26357 pending_entry_->SetTitle(base::string16());
[email protected]bcd904482012-02-01 01:54:22358
[email protected]59167c22013-06-03 18:07:32359 pending_entry_->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22360 }
361
[email protected]1ccb3568d2010-02-19 10:51:16362 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29363 }
364}
365
[email protected]d202a7c2012-01-04 07:53:47366void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12367 DCHECK(pending_reload_ != NO_RELOAD);
368 pending_reload_ = NO_RELOAD;
369}
370
[email protected]d202a7c2012-01-04 07:53:47371void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12372 if (pending_reload_ == NO_RELOAD) {
373 NOTREACHED();
374 } else {
375 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02376 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12377 }
378}
379
[email protected]cd2e15742013-03-08 04:08:31380bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09381 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11382}
383
[email protected]d202a7c2012-01-04 07:53:47384NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33385 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11386 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20387 return (index != -1) ? entries_[index].get() : NULL;
388}
389
[email protected]d202a7c2012-01-04 07:53:47390void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]765b35502008-08-21 00:51:20391 // When navigating to a new page, we don't know for sure if we will actually
392 // end up leaving the current page. The new page load could for example
393 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]59167c22013-06-03 18:07:32394 SetPendingEntry(entry);
395 NavigateToPendingEntry(NO_RELOAD);
396}
397
398void NavigationControllerImpl::SetPendingEntry(NavigationEntryImpl* entry) {
[email protected]cbab76d2008-10-13 22:42:47399 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20400 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21401 NotificationService::current()->Notify(
402 NOTIFICATION_NAV_ENTRY_PENDING,
403 Source<NavigationController>(this),
404 Details<NavigationEntry>(entry));
[email protected]765b35502008-08-21 00:51:20405}
406
[email protected]d202a7c2012-01-04 07:53:47407NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47408 if (transient_entry_index_ != -1)
409 return entries_[transient_entry_index_].get();
410 if (pending_entry_)
411 return pending_entry_;
412 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20413}
414
[email protected]d202a7c2012-01-04 07:53:47415NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19416 if (transient_entry_index_ != -1)
417 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32418 // The pending entry is safe to return for new (non-history), browser-
419 // initiated navigations. Most renderer-initiated navigations should not
420 // show the pending entry, to prevent URL spoof attacks.
421 //
422 // We make an exception for renderer-initiated navigations in new tabs, as
423 // long as no other page has tried to access the initial empty document in
424 // the new tab. If another page modifies this blank page, a URL spoof is
425 // possible, so we must stop showing the pending entry.
426 RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
[email protected]ec6c05f2013-10-23 18:41:57427 delegate_->GetRenderViewHost());
[email protected]59167c22013-06-03 18:07:32428 bool safe_to_show_pending =
429 pending_entry_ &&
430 // Require a new navigation.
[email protected]36fc0392011-12-25 03:59:51431 pending_entry_->GetPageID() == -1 &&
[email protected]59167c22013-06-03 18:07:32432 // Require either browser-initiated or an unmodified new tab.
433 (!pending_entry_->is_renderer_initiated() ||
434 (IsInitialNavigation() &&
435 !GetLastCommittedEntry() &&
436 !rvh->has_accessed_initial_document()));
437
438 // Also allow showing the pending entry for history navigations in a new tab,
439 // such as Ctrl+Back. In this case, no existing page is visible and no one
440 // can script the new tab before it commits.
441 if (!safe_to_show_pending &&
442 pending_entry_ &&
443 pending_entry_->GetPageID() != -1 &&
444 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34445 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32446 safe_to_show_pending = true;
447
448 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19449 return pending_entry_;
450 return GetLastCommittedEntry();
451}
452
[email protected]d202a7c2012-01-04 07:53:47453int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47454 if (transient_entry_index_ != -1)
455 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20456 if (pending_entry_index_ != -1)
457 return pending_entry_index_;
458 return last_committed_entry_index_;
459}
460
[email protected]d202a7c2012-01-04 07:53:47461NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20462 if (last_committed_entry_index_ == -1)
463 return NULL;
464 return entries_[last_committed_entry_index_].get();
465}
466
[email protected]d202a7c2012-01-04 07:53:47467bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57468 const std::string& mime_type = delegate_->GetContentsMimeType();
[email protected]9d86c4982013-01-09 00:38:34469 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
470 !net::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27471 NavigationEntry* visible_entry = GetVisibleEntry();
472 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57473 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16474}
475
[email protected]d202a7c2012-01-04 07:53:47476int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55477 return last_committed_entry_index_;
478}
479
[email protected]d202a7c2012-01-04 07:53:47480int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25481 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55482 return static_cast<int>(entries_.size());
483}
484
[email protected]d202a7c2012-01-04 07:53:47485NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25486 int index) const {
487 return entries_.at(index).get();
488}
489
[email protected]d202a7c2012-01-04 07:53:47490NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25491 int offset) const {
[email protected]9ba14052012-06-22 23:50:03492 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55493 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20494 return NULL;
495
496 return entries_[index].get();
497}
498
[email protected]9ba14052012-06-22 23:50:03499int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46500 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03501}
502
[email protected]9677a3c2012-12-22 04:18:58503void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10504 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58505}
506
[email protected]1a3f5312013-04-26 21:00:10507void NavigationControllerImpl::SetScreenshotManager(
[email protected]d1581d72013-11-05 19:11:26508 NavigationEntryScreenshotManager* manager) {
[email protected]1a3f5312013-04-26 21:00:10509 screenshot_manager_.reset(manager ? manager :
[email protected]d1581d72013-11-05 19:11:26510 new NavigationEntryScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58511}
512
[email protected]d202a7c2012-01-04 07:53:47513bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20514 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
515}
516
[email protected]d202a7c2012-01-04 07:53:47517bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20518 int index = GetCurrentEntryIndex();
519 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
520}
521
[email protected]9ba14052012-06-22 23:50:03522bool NavigationControllerImpl::CanGoToOffset(int offset) const {
523 int index = GetIndexForOffset(offset);
524 return index >= 0 && index < GetEntryCount();
525}
526
[email protected]d202a7c2012-01-04 07:53:47527void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20528 if (!CanGoBack()) {
529 NOTREACHED();
530 return;
531 }
532
533 // Base the navigation on where we are now...
534 int current_index = GetCurrentEntryIndex();
535
[email protected]cbab76d2008-10-13 22:42:47536 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20537
538 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25539 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21540 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51541 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21542 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16543 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20544}
545
[email protected]d202a7c2012-01-04 07:53:47546void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20547 if (!CanGoForward()) {
548 NOTREACHED();
549 return;
550 }
551
[email protected]cbab76d2008-10-13 22:42:47552 bool transient = (transient_entry_index_ != -1);
553
[email protected]765b35502008-08-21 00:51:20554 // Base the navigation on where we are now...
555 int current_index = GetCurrentEntryIndex();
556
[email protected]cbab76d2008-10-13 22:42:47557 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20558
[email protected]cbab76d2008-10-13 22:42:47559 pending_entry_index_ = current_index;
560 // If there was a transient entry, we removed it making the current index
561 // the next page.
562 if (!transient)
563 pending_entry_index_++;
564
[email protected]022af742011-12-28 18:37:25565 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21566 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51567 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21568 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16569 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20570}
571
[email protected]d202a7c2012-01-04 07:53:47572void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20573 if (index < 0 || index >= static_cast<int>(entries_.size())) {
574 NOTREACHED();
575 return;
576 }
577
[email protected]cbab76d2008-10-13 22:42:47578 if (transient_entry_index_ != -1) {
579 if (index == transient_entry_index_) {
580 // Nothing to do when navigating to the transient.
581 return;
582 }
583 if (index > transient_entry_index_) {
584 // Removing the transient is goint to shift all entries by 1.
585 index--;
586 }
587 }
588
589 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20590
591 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25592 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21593 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51594 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21595 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16596 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20597}
598
[email protected]d202a7c2012-01-04 07:53:47599void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03600 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20601 return;
602
[email protected]9ba14052012-06-22 23:50:03603 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20604}
605
[email protected]41374f12013-07-24 02:49:28606bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
607 if (index == last_committed_entry_index_ ||
608 index == pending_entry_index_)
609 return false;
[email protected]6a13a6c2011-12-20 21:47:12610
[email protected]43032342011-03-21 14:10:31611 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28612 return true;
[email protected]cbab76d2008-10-13 22:42:47613}
614
[email protected]d202a7c2012-01-04 07:53:47615void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23616 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32617 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31618 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51619 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
620 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32621 }
622}
623
[email protected]d202a7c2012-01-04 07:53:47624void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47625 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21626 const Referrer& referrer,
627 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47628 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47629 LoadURLParams params(url);
630 params.referrer = referrer;
631 params.transition_type = transition;
632 params.extra_headers = extra_headers;
633 LoadURLWithParams(params);
634}
635
636void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]e11f0e92013-06-12 15:12:03637 TRACE_EVENT0("browser", "NavigationControllerImpl::LoadURLWithParams");
[email protected]8ff00d72012-10-23 19:12:21638 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18639 return;
640
[email protected]cf002332012-08-14 19:17:47641 // Checks based on params.load_type.
642 switch (params.load_type) {
643 case LOAD_TYPE_DEFAULT:
644 break;
645 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e9a82042013-09-15 03:38:29646 if (!params.url.SchemeIs(kHttpScheme) &&
[email protected]4654bfe2013-08-26 03:36:58647 !params.url.SchemeIs(kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47648 NOTREACHED() << "Http post load must use http(s) scheme.";
649 return;
650 }
651 break;
652 case LOAD_TYPE_DATA:
653 if (!params.url.SchemeIs(chrome::kDataScheme)) {
654 NOTREACHED() << "Data load must use data scheme.";
655 return;
656 }
657 break;
658 default:
659 NOTREACHED();
660 break;
661 };
[email protected]e47ae9472011-10-13 19:48:34662
[email protected]e47ae9472011-10-13 19:48:34663 // The user initiated a load, we don't need to reload anymore.
664 needs_reload_ = false;
665
[email protected]cf002332012-08-14 19:17:47666 bool override = false;
667 switch (params.override_user_agent) {
668 case UA_OVERRIDE_INHERIT:
669 override = ShouldKeepOverride(GetLastCommittedEntry());
670 break;
671 case UA_OVERRIDE_TRUE:
672 override = true;
673 break;
674 case UA_OVERRIDE_FALSE:
675 override = false;
676 break;
677 default:
678 NOTREACHED();
679 break;
[email protected]d1ef81d2012-07-24 11:39:36680 }
681
[email protected]d1ef81d2012-07-24 11:39:36682 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
683 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47684 params.url,
685 params.referrer,
686 params.transition_type,
687 params.is_renderer_initiated,
688 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36689 browser_context_));
[email protected]c80297782013-11-21 07:10:16690 if (params.frame_tree_node_id != -1)
691 entry->set_frame_tree_node_id(params.frame_tree_node_id);
[email protected]f8872902013-10-30 03:18:57692 if (params.redirect_chain.size() > 0)
693 entry->set_redirect_chain(params.redirect_chain);
[email protected]866fa2cc2013-07-22 22:19:52694 if (params.should_replace_current_entry)
[email protected]e2caa032012-11-15 23:29:18695 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13696 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47697 entry->SetIsOverridingUserAgent(override);
698 entry->set_transferred_global_request_id(
699 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37700 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36701
[email protected]cf002332012-08-14 19:17:47702 switch (params.load_type) {
703 case LOAD_TYPE_DEFAULT:
704 break;
705 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
706 entry->SetHasPostData(true);
707 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46708 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47709 break;
710 case LOAD_TYPE_DATA:
711 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
712 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37713 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47714 break;
715 default:
716 NOTREACHED();
717 break;
718 };
[email protected]132e281a2012-07-31 18:32:44719
720 LoadEntry(entry);
721}
722
[email protected]d202a7c2012-01-04 07:53:47723bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43724 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8ff00d72012-10-23 19:12:21725 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31726 is_initial_navigation_ = false;
727
[email protected]0e8db942008-09-24 21:21:48728 // Save the previous state before we clobber it.
729 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51730 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55731 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48732 } else {
733 details->previous_url = GURL();
734 details->previous_entry_index = -1;
735 }
[email protected]ecd9d8702008-08-28 22:10:17736
[email protected]77362eb2011-08-01 17:18:38737 // If we have a pending entry at this point, it should have a SiteInstance.
738 // Restored entries start out with a null SiteInstance, but we should have
739 // assigned one in NavigateToPendingEntry.
740 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43741
[email protected]bcd904482012-02-01 01:54:22742 // If we are doing a cross-site reload, we need to replace the existing
743 // navigation entry, not add another entry to the history. This has the side
744 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18745 // Or if we are doing a cross-site redirect navigation,
746 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59747 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18748 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22749
[email protected]e9ba4472008-09-14 15:42:43750 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48751 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20752
[email protected]b9d4dfdc2013-08-08 00:25:12753 // is_in_page must be computed before the entry gets committed.
754 details->is_in_page = IsURLInPageNavigation(
755 params.url, params.was_within_same_page, details->type);
756
[email protected]0e8db942008-09-24 21:21:48757 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21758 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59759 RendererDidNavigateToNewPage(params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43760 break;
[email protected]8ff00d72012-10-23 19:12:21761 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43762 RendererDidNavigateToExistingPage(params);
763 break;
[email protected]8ff00d72012-10-23 19:12:21764 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43765 RendererDidNavigateToSamePage(params);
766 break;
[email protected]8ff00d72012-10-23 19:12:21767 case NAVIGATION_TYPE_IN_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59768 RendererDidNavigateInPage(params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43769 break;
[email protected]8ff00d72012-10-23 19:12:21770 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43771 RendererDidNavigateNewSubframe(params);
772 break;
[email protected]8ff00d72012-10-23 19:12:21773 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43774 if (!RendererDidNavigateAutoSubframe(params))
775 return false;
776 break;
[email protected]8ff00d72012-10-23 19:12:21777 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49778 // If a pending navigation was in progress, this canceled it. We should
779 // discard it and make sure it is removed from the URL bar. After that,
780 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43781 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49782 if (pending_entry_) {
783 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57784 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49785 }
[email protected]e9ba4472008-09-14 15:42:43786 return false;
787 default:
788 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20789 }
790
[email protected]688aa65c62012-09-28 04:32:22791 // At this point, we know that the navigation has just completed, so
792 // record the time.
793 //
794 // TODO(akalin): Use "sane time" as described in
795 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33796 base::Time timestamp =
797 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
798 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22799 << timestamp.ToInternalValue();
800
[email protected]f233e4232013-02-23 00:55:14801 // We should not have a pending entry anymore. Clear it again in case any
802 // error cases above forgot to do so.
803 DiscardNonCommittedEntriesInternal();
804
[email protected]e9ba4472008-09-14 15:42:43805 // All committed entries should have nonempty content state so WebKit doesn't
806 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04807 DCHECK(params.page_state.IsValid());
[email protected]10f417c52011-12-28 21:04:23808 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14809 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22810 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44811 active_entry->SetHttpStatusCode(params.http_status_code);
[email protected]691aa2f2013-05-28 22:52:04812 active_entry->SetPageState(params.page_state);
[email protected]132e281a2012-07-31 18:32:44813
[email protected]97d8f0d2013-10-29 16:49:21814 // Once it is committed, we no longer need to track several pieces of state on
815 // the entry.
816 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13817
[email protected]49bd30e62011-03-22 20:12:59818 // The active entry's SiteInstance should match our SiteInstance.
[email protected]ec6c05f2013-10-23 18:41:57819 CHECK(active_entry->site_instance() == delegate_->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59820
[email protected]b26de072013-02-23 02:33:44821 // Remember the bindings the renderer process has at this point, so that
822 // we do not grant this entry additional bindings if we come back to it.
823 active_entry->SetBindings(
[email protected]ec6c05f2013-10-23 18:41:57824 delegate_->GetRenderViewHost()->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44825
[email protected]e9ba4472008-09-14 15:42:43826 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00827 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58828 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21829 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24830 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31831 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00832 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29833
[email protected]e9ba4472008-09-14 15:42:43834 return true;
initial.commit09911bf2008-07-26 23:55:29835}
836
[email protected]8ff00d72012-10-23 19:12:21837NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43838 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43839 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46840 // The renderer generates the page IDs, and so if it gives us the invalid
841 // page ID (-1) we know it didn't actually navigate. This happens in a few
842 // cases:
843 //
844 // - If a page makes a popup navigated to about blank, and then writes
845 // stuff like a subframe navigated to a real page. We'll get the commit
846 // for the subframe, but there won't be any commit for the outer page.
847 //
848 // - We were also getting these for failed loads (for example, bug 21849).
849 // The guess is that we get a "load commit" for the alternate error page,
850 // but that doesn't affect the page ID, so we get the "old" one, which
851 // could be invalid. This can also happen for a cross-site transition
852 // that causes us to swap processes. Then the error page load will be in
853 // a new process with no page IDs ever assigned (and hence a -1 value),
854 // yet the navigation controller still might have previous pages in its
855 // list.
856 //
857 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21858 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43859 }
860
[email protected]ec6c05f2013-10-23 18:41:57861 if (params.page_id > delegate_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43862 // Greater page IDs than we've ever seen before are new pages. We may or may
863 // not have a pending entry for the page, and this may or may not be the
864 // main frame.
[email protected]8ff00d72012-10-23 19:12:21865 if (PageTransitionIsMainFrame(params.transition))
866 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09867
868 // When this is a new subframe navigation, we should have a committed page
869 // for which it's a suframe in. This may not be the case when an iframe is
870 // navigated on a popup navigated to about:blank (the iframe would be
871 // written into the popup by script on the main page). For these cases,
872 // there isn't any navigation stuff we can do, so just ignore it.
873 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21874 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09875
876 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21877 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43878 }
879
[email protected]60d6cca2013-04-30 08:47:13880 // We only clear the session history when navigating to a new page.
881 DCHECK(!params.history_list_was_cleared);
882
[email protected]e9ba4472008-09-14 15:42:43883 // Now we know that the notification is for an existing page. Find that entry.
884 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]ec6c05f2013-10-23 18:41:57885 delegate_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43886 params.page_id);
887 if (existing_entry_index == -1) {
888 // The page was not found. It could have been pruned because of the limit on
889 // back/forward entries (not likely since we'll usually tell it to navigate
890 // to such entries). It could also mean that the renderer is smoking crack.
891 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46892
893 // Because the unknown entry has committed, we risk showing the wrong URL in
894 // release builds. Instead, we'll kill the renderer process to be safe.
895 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]8ff00d72012-10-23 19:12:21896 RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52897
[email protected]7ec6f382011-11-11 01:28:17898 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10899 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
900 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17901 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52902 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17903 temp.append("#max");
[email protected]ec6c05f2013-10-23 18:41:57904 temp.append(base::IntToString(delegate_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17905 temp.append("#frame");
906 temp.append(base::IntToString(params.frame_id));
907 temp.append("#ids");
908 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10909 // Append entry metadata (e.g., 3_7x):
910 // 3: page_id
911 // 7: SiteInstance ID, or N for null
912 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51913 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10914 temp.append("_");
915 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33916 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17917 else
[email protected]8c380582011-12-02 03:16:10918 temp.append("N");
[email protected]ec6c05f2013-10-23 18:41:57919 if (entries_[i]->site_instance() != delegate_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17920 temp.append("x");
921 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52922 }
923 GURL url(temp);
[email protected]9f76c1e2012-03-05 15:15:58924 static_cast<RenderViewHostImpl*>(
[email protected]ec6c05f2013-10-23 18:41:57925 delegate_->GetRenderViewHost())->Send(
[email protected]9f76c1e2012-03-05 15:15:58926 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21927 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43928 }
[email protected]10f417c52011-12-28 21:04:23929 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43930
[email protected]8ff00d72012-10-23 19:12:21931 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52932 // All manual subframes would get new IDs and were handled above, so we
933 // know this is auto. Since the current page was found in the navigation
934 // entry list, we're guaranteed to have a last committed entry.
935 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21936 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52937 }
938
939 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43940 if (pending_entry_ &&
[email protected]59167c22013-06-03 18:07:32941 !pending_entry_->is_renderer_initiated() &&
[email protected]e9ba4472008-09-14 15:42:43942 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51943 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24944 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43945 // In this case, we have a pending entry for a URL but WebCore didn't do a
946 // new navigation. This happens when you press enter in the URL bar to
947 // reload. We will create a pending entry, but WebKit will convert it to
948 // a reload since it's the same page and not create a new entry for it
949 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24950 // this). If this matches the last committed entry, we want to just ignore
951 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21952 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43953 }
954
[email protected]fc60f222008-12-18 17:36:54955 // Any toplevel navigations with the same base (minus the reference fragment)
956 // are in-page navigations. We weeded out subframe navigations above. Most of
957 // the time this doesn't matter since WebKit doesn't tell us about subframe
958 // navigations that don't actually navigate, but it can happen when there is
959 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59960 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
[email protected]b9d4dfdc2013-08-08 00:25:12961 params.was_within_same_page,
962 NAVIGATION_TYPE_UNKNOWN)) {
[email protected]8ff00d72012-10-23 19:12:21963 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59964 }
[email protected]fc60f222008-12-18 17:36:54965
[email protected]e9ba4472008-09-14 15:42:43966 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09967 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21968 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43969}
970
[email protected]d202a7c2012-01-04 07:53:47971void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]e6fec472013-05-14 05:29:02972 const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23973 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41974 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34975 // Only make a copy of the pending entry if it is appropriate for the new page
976 // that was just loaded. We verify this at a coarse grain by checking that
977 // the SiteInstance hasn't been assigned to something else.
978 if (pending_entry_ &&
979 (!pending_entry_->site_instance() ||
[email protected]ec6c05f2013-10-23 18:41:57980 pending_entry_->site_instance() == delegate_->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:23981 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43982
983 // Don't use the page type from the pending entry. Some interstitial page
984 // may have set the type to interstitial. Once we commit, however, the page
985 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:21986 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:41987 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:43988 } else {
[email protected]10f417c52011-12-28 21:04:23989 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:24990
991 // Find out whether the new entry needs to update its virtual URL on URL
992 // change and set up the entry accordingly. This is needed to correctly
993 // update the virtual URL when replaceState is called after a pushState.
994 GURL url = params.url;
995 bool needs_update = false;
996 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
997 &url, browser_context_, &needs_update);
998 new_entry->set_update_virtual_url_with_url(needs_update);
999
[email protected]f1eb87a2011-05-06 17:49:411000 // When navigating to a new page, give the browser URL handler a chance to
1001 // update the virtual URL based on the new URL. For example, this is needed
1002 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1003 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241004 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431005 }
1006
[email protected]ad23a092011-12-28 07:02:041007 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411008 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:321009 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:251010 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511011 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251012 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331013 new_entry->set_site_instance(
[email protected]ec6c05f2013-10-23 18:41:571014 static_cast<SiteInstanceImpl*>(delegate_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511015 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051016 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231017 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221018 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431019
[email protected]60d6cca2013-04-30 08:47:131020 DCHECK(!params.history_list_was_cleared || !replace_entry);
1021 // The browser requested to clear the session history when it initiated the
1022 // navigation. Now we know that the renderer has updated its state accordingly
1023 // and it is safe to also clear the browser side history.
1024 if (params.history_list_was_cleared) {
1025 DiscardNonCommittedEntriesInternal();
1026 entries_.clear();
1027 last_committed_entry_index_ = -1;
1028 }
1029
[email protected]4ac5fbe2012-09-01 02:19:591030 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:431031}
1032
[email protected]d202a7c2012-01-04 07:53:471033void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:431034 const ViewHostMsg_FrameNavigate_Params& params) {
1035 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:211036 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:431037
1038 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091039 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1040 // with new information from the renderer.
[email protected]ec6c05f2013-10-23 18:41:571041 int entry_index = GetEntryIndexWithPageID(delegate_->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111042 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431043 DCHECK(entry_index >= 0 &&
1044 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231045 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431046
[email protected]5ccd4dc2012-10-24 02:28:141047 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041048 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:321049 if (entry->update_virtual_url_with_url())
1050 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141051
1052 // The redirected to page should not inherit the favicon from the previous
1053 // page.
1054 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481055 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141056
1057 // The site instance will normally be the same except during session restore,
1058 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431059 DCHECK(entry->site_instance() == NULL ||
[email protected]ec6c05f2013-10-23 18:41:571060 entry->site_instance() == delegate_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331061 entry->set_site_instance(
[email protected]ec6c05f2013-10-23 18:41:571062 static_cast<SiteInstanceImpl*>(delegate_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431063
[email protected]36fc0392011-12-25 03:59:511064 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051065 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411066
[email protected]e9ba4472008-09-14 15:42:431067 // The entry we found in the list might be pending if the user hit
1068 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591069 // list, we can just discard the pending pointer). We should also discard the
1070 // pending entry if it corresponds to a different navigation, since that one
1071 // is now likely canceled. If it is not canceled, we will treat it as a new
1072 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431073 //
1074 // Note that we need to use the "internal" version since we don't want to
1075 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491076 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391077
[email protected]80858db52009-10-15 00:35:181078 // If a transient entry was removed, the indices might have changed, so we
1079 // have to query the entry index again.
1080 last_committed_entry_index_ =
[email protected]ec6c05f2013-10-23 18:41:571081 GetEntryIndexWithPageID(delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431082}
1083
[email protected]d202a7c2012-01-04 07:53:471084void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:431085 const ViewHostMsg_FrameNavigate_Params& params) {
1086 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091087 // entry for this page ID. This entry is guaranteed to exist by
1088 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231089 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]ec6c05f2013-10-23 18:41:571090 delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431091
1092 // We assign the entry's unique ID to be that of the new one. Since this is
1093 // always the result of a user action, we want to dismiss infobars, etc. like
1094 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511095 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431096
[email protected]a0e69262009-06-03 19:08:481097 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321098 if (existing_entry->update_virtual_url_with_url())
1099 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041100 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481101
[email protected]cbab76d2008-10-13 22:42:471102 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431103}
1104
[email protected]d202a7c2012-01-04 07:53:471105void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:471106 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211107 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431108 "WebKit should only tell us about in-page navs for the main frame.";
1109 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231110 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]ec6c05f2013-10-23 18:41:571111 delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431112
1113 // Reference fragment navigation. We're guaranteed to have the last_committed
1114 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031115 // reference fragments, of course). We'll update the URL of the existing
1116 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041117 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031118 if (existing_entry->update_virtual_url_with_url())
1119 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431120
1121 // This replaces the existing entry since the page ID didn't change.
1122 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031123
[email protected]6eebaab2012-11-15 04:39:491124 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031125
1126 // If a transient entry was removed, the indices might have changed, so we
1127 // have to query the entry index again.
1128 last_committed_entry_index_ =
[email protected]ec6c05f2013-10-23 18:41:571129 GetEntryIndexWithPageID(delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431130}
1131
[email protected]d202a7c2012-01-04 07:53:471132void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:431133 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]026aac22013-07-10 02:09:111134 if (PageTransitionCoreTypeIs(params.transition,
1135 PAGE_TRANSITION_AUTO_SUBFRAME)) {
[email protected]09b8f82f2009-06-16 20:22:111136 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141137 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111138 return;
1139 }
[email protected]09b8f82f2009-06-16 20:22:111140
[email protected]e9ba4472008-09-14 15:42:431141 // Manual subframe navigations just get the current entry cloned so the user
1142 // can go back or forward to it. The actual subframe information will be
1143 // stored in the page state for each of those entries. This happens out of
1144 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091145 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1146 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231147 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1148 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511149 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451150 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431151}
1152
[email protected]d202a7c2012-01-04 07:53:471153bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:431154 const ViewHostMsg_FrameNavigate_Params& params) {
1155 // We're guaranteed to have a previously committed entry, and we now need to
1156 // handle navigation inside of a subframe in it without creating a new entry.
1157 DCHECK(GetLastCommittedEntry());
1158
1159 // Handle the case where we're navigating back/forward to a previous subframe
1160 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1161 // header file. In case "1." this will be a NOP.
1162 int entry_index = GetEntryIndexWithPageID(
[email protected]ec6c05f2013-10-23 18:41:571163 delegate_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431164 params.page_id);
1165 if (entry_index < 0 ||
1166 entry_index >= static_cast<int>(entries_.size())) {
1167 NOTREACHED();
1168 return false;
1169 }
1170
1171 // Update the current navigation entry in case we're going back/forward.
1172 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431173 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141174 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431175 return true;
1176 }
[email protected]f233e4232013-02-23 00:55:141177
1178 // We do not need to discard the pending entry in this case, since we will
1179 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431180 return false;
1181}
1182
[email protected]d202a7c2012-01-04 07:53:471183int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231184 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201185 const NavigationEntries::const_iterator i(std::find(
1186 entries_.begin(),
1187 entries_.end(),
1188 entry));
1189 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1190}
1191
[email protected]ce760d742012-08-30 22:31:101192bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121193 const GURL& url,
1194 bool renderer_says_in_page,
1195 NavigationType navigation_type) const {
[email protected]10f417c52011-12-28 21:04:231196 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101197 return last_committed && AreURLsInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121198 last_committed->GetURL(), url, renderer_says_in_page, navigation_type);
[email protected]e9ba4472008-09-14 15:42:431199}
1200
[email protected]d202a7c2012-01-04 07:53:471201void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501202 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471203 const NavigationControllerImpl& source =
1204 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571205 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551206 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571207
[email protected]a26023822011-12-29 00:23:551208 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571209 return; // Nothing new to do.
1210
1211 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551212 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571213
[email protected]fdac6ade2013-07-20 01:06:301214 for (SessionStorageNamespaceMap::const_iterator it =
1215 source.session_storage_namespace_map_.begin();
1216 it != source.session_storage_namespace_map_.end();
1217 ++it) {
1218 SessionStorageNamespaceImpl* source_namespace =
1219 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1220 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1221 }
[email protected]4e6419c2010-01-15 04:50:341222
[email protected]2ca1ea662012-10-04 02:26:361223 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571224
1225 // Copy the max page id map from the old tab to the new tab. This ensures
1226 // that new and existing navigations in the tab's current SiteInstances
1227 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571228 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571229}
1230
[email protected]d202a7c2012-01-04 07:53:471231void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501232 NavigationController* temp) {
[email protected]474f8512013-05-31 22:31:161233 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011234 CHECK(CanPruneAllButLastCommitted());
[email protected]474f8512013-05-31 22:31:161235
[email protected]d202a7c2012-01-04 07:53:471236 NavigationControllerImpl* source =
1237 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191238 // The SiteInstance and page_id of the last committed entry needs to be
1239 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571240 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1241 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231242 NavigationEntryImpl* last_committed =
1243 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571244 scoped_refptr<SiteInstance> site_instance(
[email protected]474f8512013-05-31 22:31:161245 last_committed->site_instance());
1246 int32 minimum_page_id = last_committed->GetPageID();
1247 int32 max_page_id =
[email protected]ec6c05f2013-10-23 18:41:571248 delegate_->GetMaxPageIDForSiteInstance(site_instance.get());
[email protected]e1cd5452010-08-26 18:03:251249
1250 // Remove all the entries leaving the active entry.
[email protected]79368982013-11-13 01:11:011251 PruneAllButLastCommittedInternal();
[email protected]e1cd5452010-08-26 18:03:251252
[email protected]474f8512013-05-31 22:31:161253 // We now have one entry, possibly with a new pending entry. Ensure that
1254 // adding the entries from source won't put us over the limit.
1255 DCHECK_EQ(1, GetEntryCount());
1256 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251257
[email protected]47e020a2010-10-15 14:43:371258 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]474f8512013-05-31 22:31:161259 // we don't want to copy over the transient entry. Ignore any pending entry,
1260 // since it has not committed in source.
1261 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251262 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551263 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251264 else
1265 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371266 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251267
1268 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551269 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141270
[email protected]ec6c05f2013-10-23 18:41:571271 delegate_->SetHistoryLengthAndPrune(site_instance.get(),
1272 max_source_index,
1273 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571274
1275 // Copy the max page id map from the old tab to the new tab. This ensures
1276 // that new and existing navigations in the tab's current SiteInstances
1277 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571278 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
[email protected]91854cd2012-01-10 19:43:571279
1280 // If there is a last committed entry, be sure to include it in the new
1281 // max page ID map.
1282 if (max_page_id > -1) {
[email protected]ec6c05f2013-10-23 18:41:571283 delegate_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
1284 max_page_id);
[email protected]91854cd2012-01-10 19:43:571285 }
[email protected]e1cd5452010-08-26 18:03:251286}
1287
[email protected]79368982013-11-13 01:11:011288bool NavigationControllerImpl::CanPruneAllButLastCommitted() {
[email protected]474f8512013-05-31 22:31:161289 // If there is no last committed entry, we cannot prune. Even if there is a
1290 // pending entry, it may not commit, leaving this WebContents blank, despite
1291 // possibly giving it new entries via CopyStateFromAndPrune.
1292 if (last_committed_entry_index_ == -1)
1293 return false;
[email protected]9350602e2013-02-26 23:27:441294
[email protected]474f8512013-05-31 22:31:161295 // We cannot prune if there is a pending entry at an existing entry index.
1296 // It may not commit, so we have to keep the last committed entry, and thus
1297 // there is no sensible place to keep the pending entry. It is ok to have
1298 // a new pending entry, which can optionally commit as a new navigation.
1299 if (pending_entry_index_ != -1)
1300 return false;
1301
1302 // We should not prune if we are currently showing a transient entry.
1303 if (transient_entry_index_ != -1)
1304 return false;
1305
1306 return true;
1307}
1308
[email protected]79368982013-11-13 01:11:011309void NavigationControllerImpl::PruneAllButLastCommitted() {
1310 PruneAllButLastCommittedInternal();
[email protected]474f8512013-05-31 22:31:161311
1312 // We should still have a last committed entry.
1313 DCHECK_NE(-1, last_committed_entry_index_);
[email protected]9350602e2013-02-26 23:27:441314
[email protected]9350602e2013-02-26 23:27:441315 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1316 // SetHistoryLengthAndPrune, because it will create history_length additional
1317 // history entries.
1318 // TODO(jochen): This API is confusing and we should clean it up.
1319 // http://crbug.com/178491
[email protected]6286a3792013-10-09 04:03:271320 NavigationEntryImpl* entry =
1321 NavigationEntryImpl::FromNavigationEntry(GetVisibleEntry());
[email protected]ec6c05f2013-10-23 18:41:571322 delegate_->SetHistoryLengthAndPrune(
[email protected]9350602e2013-02-26 23:27:441323 entry->site_instance(), 0, entry->GetPageID());
1324}
1325
[email protected]79368982013-11-13 01:11:011326void NavigationControllerImpl::PruneAllButLastCommittedInternal() {
[email protected]474f8512013-05-31 22:31:161327 // It is up to callers to check the invariants before calling this.
[email protected]79368982013-11-13 01:11:011328 CHECK(CanPruneAllButLastCommitted());
[email protected]97b6c4f2010-09-27 19:31:261329
[email protected]474f8512013-05-31 22:31:161330 // Erase all entries but the last committed entry. There may still be a
1331 // new pending entry after this.
1332 entries_.erase(entries_.begin(),
1333 entries_.begin() + last_committed_entry_index_);
1334 entries_.erase(entries_.begin() + 1, entries_.end());
1335 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261336}
1337
[email protected]15f46dc2013-01-24 05:40:241338void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101339 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241340}
1341
[email protected]d1198fd2012-08-13 22:50:191342void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301343 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211344 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191345 if (!session_storage_namespace)
1346 return;
1347
1348 // We can't overwrite an existing SessionStorage without violating spec.
1349 // Attempts to do so may give a tab access to another tab's session storage
1350 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301351 bool successful_insert = session_storage_namespace_map_.insert(
1352 make_pair(partition_id,
1353 static_cast<SessionStorageNamespaceImpl*>(
1354 session_storage_namespace)))
1355 .second;
1356 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191357}
1358
[email protected]d202a7c2012-01-04 07:53:471359void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561360 max_restored_page_id_ = max_id;
1361}
1362
[email protected]d202a7c2012-01-04 07:53:471363int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561364 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551365}
1366
1367SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301368NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1369 std::string partition_id;
1370 if (instance) {
1371 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1372 // this if statement so |instance| must not be NULL.
1373 partition_id =
1374 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1375 browser_context_, instance->GetSiteURL());
1376 }
[email protected]d1198fd2012-08-13 22:50:191377
[email protected]fdac6ade2013-07-20 01:06:301378 SessionStorageNamespaceMap::const_iterator it =
1379 session_storage_namespace_map_.find(partition_id);
1380 if (it != session_storage_namespace_map_.end())
1381 return it->second.get();
1382
1383 // Create one if no one has accessed session storage for this partition yet.
1384 //
1385 // TODO(ajwong): Should this use the |partition_id| directly rather than
1386 // re-lookup via |instance|? http://crbug.com/142685
1387 StoragePartition* partition =
1388 BrowserContext::GetStoragePartition(browser_context_, instance);
1389 SessionStorageNamespaceImpl* session_storage_namespace =
1390 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411391 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301392 partition->GetDOMStorageContext()));
1393 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1394
1395 return session_storage_namespace;
1396}
1397
1398SessionStorageNamespace*
1399NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1400 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1401 return GetSessionStorageNamespace(NULL);
1402}
1403
1404const SessionStorageNamespaceMap&
1405NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1406 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551407}
[email protected]d202a7c2012-01-04 07:53:471408
1409bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561410 return needs_reload_;
1411}
[email protected]a26023822011-12-29 00:23:551412
[email protected]46bb5e9c2013-10-03 22:16:471413void NavigationControllerImpl::SetNeedsReload() {
1414 needs_reload_ = true;
1415}
1416
[email protected]d202a7c2012-01-04 07:53:471417void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551418 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121419 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311420
1421 DiscardNonCommittedEntries();
1422
1423 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121424 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311425 last_committed_entry_index_--;
1426}
1427
[email protected]d202a7c2012-01-04 07:53:471428void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471429 bool transient = transient_entry_index_ != -1;
1430 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291431
[email protected]cbab76d2008-10-13 22:42:471432 // If there was a transient entry, invalidate everything so the new active
1433 // entry state is shown.
1434 if (transient) {
[email protected]ec6c05f2013-10-23 18:41:571435 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471436 }
initial.commit09911bf2008-07-26 23:55:291437}
1438
[email protected]d202a7c2012-01-04 07:53:471439NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251440 return pending_entry_;
1441}
1442
[email protected]d202a7c2012-01-04 07:53:471443int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551444 return pending_entry_index_;
1445}
1446
[email protected]d202a7c2012-01-04 07:53:471447void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1448 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211449 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201450
1451 // Copy the pending entry's unique ID to the committed entry.
1452 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231453 const NavigationEntryImpl* const pending_entry =
1454 (pending_entry_index_ == -1) ?
1455 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201456 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511457 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201458
[email protected]cbab76d2008-10-13 22:42:471459 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201460
1461 int current_size = static_cast<int>(entries_.size());
1462
[email protected]765b35502008-08-21 00:51:201463 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451464 // Prune any entries which are in front of the current entry.
1465 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311466 // last_committed_entry_index_ must be updated here since calls to
1467 // NotifyPrunedEntries() below may re-enter and we must make sure
1468 // last_committed_entry_index_ is not left in an invalid state.
1469 if (replace)
1470 --last_committed_entry_index_;
1471
[email protected]c12bf1a12008-09-17 16:28:491472 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311473 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491474 num_pruned++;
[email protected]765b35502008-08-21 00:51:201475 entries_.pop_back();
1476 current_size--;
1477 }
[email protected]c12bf1a12008-09-17 16:28:491478 if (num_pruned > 0) // Only notify if we did prune something.
1479 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201480 }
1481
[email protected]944822b2012-03-02 20:57:251482 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201483
[email protected]10f417c52011-12-28 21:04:231484 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201485 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431486
1487 // This is a new page ID, so we need everybody to know about it.
[email protected]ec6c05f2013-10-23 18:41:571488 delegate_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291489}
1490
[email protected]944822b2012-03-02 20:57:251491void NavigationControllerImpl::PruneOldestEntryIfFull() {
1492 if (entries_.size() >= max_entry_count()) {
1493 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021494 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251495 RemoveEntryAtIndex(0);
1496 NotifyPrunedEntries(this, true, 1);
1497 }
1498}
1499
[email protected]d202a7c2012-01-04 07:53:471500void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011501 needs_reload_ = false;
1502
[email protected]83c2e232011-10-07 21:36:461503 // If we were navigating to a slow-to-commit page, and the user performs
1504 // a session history navigation to the last committed page, RenderViewHost
1505 // will force the throbber to start, but WebKit will essentially ignore the
1506 // navigation, and won't send a message to stop the throbber. To prevent this
1507 // from happening, we drop the navigation here and stop the slow-to-commit
1508 // page from loading (which would normally happen during the navigation).
1509 if (pending_entry_index_ != -1 &&
1510 pending_entry_index_ == last_committed_entry_index_ &&
1511 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231512 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511513 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211514 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571515 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121516
1517 // If an interstitial page is showing, we want to close it to get back
1518 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571519 if (delegate_->GetInterstitialPage())
1520 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121521
[email protected]83c2e232011-10-07 21:36:461522 DiscardNonCommittedEntries();
1523 return;
1524 }
1525
[email protected]6a13a6c2011-12-20 21:47:121526 // If an interstitial page is showing, the previous renderer is blocked and
1527 // cannot make new requests. Unblock (and disable) it to allow this
1528 // navigation to succeed. The interstitial will stay visible until the
1529 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571530 if (delegate_->GetInterstitialPage()) {
1531 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131532 CancelForNavigation();
1533 }
[email protected]6a13a6c2011-12-20 21:47:121534
initial.commit09911bf2008-07-26 23:55:291535 // For session history navigations only the pending_entry_index_ is set.
1536 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201537 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201538 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291539 }
1540
[email protected]ec6c05f2013-10-23 18:41:571541 if (!delegate_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471542 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381543
1544 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1545 // it in now that we know. This allows us to find the entry when it commits.
1546 // This works for browser-initiated navigations. We handle renderer-initiated
[email protected]2db9bd72012-04-13 20:20:561547 // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset.
[email protected]77362eb2011-08-01 17:18:381548 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231549 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331550 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]ec6c05f2013-10-23 18:41:571551 delegate_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231552 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381553 }
initial.commit09911bf2008-07-26 23:55:291554}
1555
[email protected]d202a7c2012-01-04 07:53:471556void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211557 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271558 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401559
[email protected]2db9bd72012-04-13 20:20:561560 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401561 // location bar will have up-to-date information about the security style
1562 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131563 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401564
[email protected]ec6c05f2013-10-23 18:41:571565 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
1566 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461567
[email protected]b0f724c2013-09-05 04:21:131568 // TODO(avi): Remove. http://crbug.com/170921
1569 NotificationDetails notification_details =
1570 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211571 NotificationService::current()->Notify(
1572 NOTIFICATION_NAV_ENTRY_COMMITTED,
1573 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401574 notification_details);
initial.commit09911bf2008-07-26 23:55:291575}
1576
initial.commit09911bf2008-07-26 23:55:291577// static
[email protected]d202a7c2012-01-04 07:53:471578size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231579 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1580 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211581 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231582}
1583
[email protected]d202a7c2012-01-04 07:53:471584void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221585 if (is_active && needs_reload_)
1586 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291587}
1588
[email protected]d202a7c2012-01-04 07:53:471589void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291590 if (!needs_reload_)
1591 return;
1592
initial.commit09911bf2008-07-26 23:55:291593 // Calling Reload() results in ignoring state, and not loading.
1594 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1595 // cached state.
1596 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161597 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291598}
1599
[email protected]d202a7c2012-01-04 07:53:471600void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1601 int index) {
[email protected]8ff00d72012-10-23 19:12:211602 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091603 det.changed_entry = entry;
1604 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211605 NotificationService::current()->Notify(
1606 NOTIFICATION_NAV_ENTRY_CHANGED,
1607 Source<NavigationController>(this),
1608 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291609}
1610
[email protected]d202a7c2012-01-04 07:53:471611void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361612 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551613 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361614 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291615
[email protected]71fde352011-12-29 03:29:561616 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291617
1618 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291619}
[email protected]765b35502008-08-21 00:51:201620
[email protected]d202a7c2012-01-04 07:53:471621void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]b12eb222013-09-10 00:11:481622 DiscardPendingEntry();
1623 DiscardTransientEntry();
1624}
1625
1626void NavigationControllerImpl::DiscardPendingEntry() {
[email protected]765b35502008-08-21 00:51:201627 if (pending_entry_index_ == -1)
1628 delete pending_entry_;
1629 pending_entry_ = NULL;
1630 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471631}
1632
[email protected]d202a7c2012-01-04 07:53:471633void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471634 if (transient_entry_index_ == -1)
1635 return;
[email protected]a0e69262009-06-03 19:08:481636 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181637 if (last_committed_entry_index_ > transient_entry_index_)
1638 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471639 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201640}
1641
[email protected]d202a7c2012-01-04 07:53:471642int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111643 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201644 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111645 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511646 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201647 return i;
1648 }
1649 return -1;
1650}
[email protected]cbab76d2008-10-13 22:42:471651
[email protected]d202a7c2012-01-04 07:53:471652NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471653 if (transient_entry_index_ == -1)
1654 return NULL;
1655 return entries_[transient_entry_index_].get();
1656}
[email protected]e1cd5452010-08-26 18:03:251657
[email protected]0b684262013-02-20 02:18:211658void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1659 // Discard any current transient entry, we can only have one at a time.
1660 int index = 0;
1661 if (last_committed_entry_index_ != -1)
1662 index = last_committed_entry_index_ + 1;
1663 DiscardTransientEntry();
1664 entries_.insert(
1665 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1666 NavigationEntryImpl::FromNavigationEntry(entry)));
1667 transient_entry_index_ = index;
[email protected]ec6c05f2013-10-23 18:41:571668 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]0b684262013-02-20 02:18:211669}
1670
[email protected]d202a7c2012-01-04 07:53:471671void NavigationControllerImpl::InsertEntriesFrom(
1672 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251673 int max_index) {
[email protected]a26023822011-12-29 00:23:551674 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251675 size_t insert_index = 0;
1676 for (int i = 0; i < max_index; i++) {
1677 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041678 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211679 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251680 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231681 linked_ptr<NavigationEntryImpl>(
1682 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251683 }
1684 }
1685}
[email protected]c5b88d82012-10-06 17:03:331686
1687void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1688 const base::Callback<base::Time()>& get_timestamp_callback) {
1689 get_timestamp_callback_ = get_timestamp_callback;
1690}
[email protected]8ff00d72012-10-23 19:12:211691
1692} // namespace content