blob: 8bc4ec80db93883ad393c25e7651e90007752dc2 [file] [log] [blame]
[email protected]91854cd2012-01-10 19:43:571// Copyright (c) 2012 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
[email protected]f9e4dae2012-04-10 21:26:375#include "content/browser/web_contents/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
[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]b3c41c0b2012-03-06 15:48:3217#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3318#include "content/browser/site_instance_impl.h"
[email protected]f9e4dae2012-04-10 21:26:3719#include "content/browser/web_contents/debug_urls.h"
20#include "content/browser/web_contents/interstitial_page_impl.h"
21#include "content/browser/web_contents/navigation_entry_impl.h"
[email protected]1a3f5312013-04-26 21:00:1022#include "content/browser/web_contents/web_contents_screenshot_manager.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]674bc592011-12-20 23:00:4234#include "content/public/browser/web_contents_delegate.h"
[email protected]d1198fd2012-08-13 22:50:1935#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3836#include "content/public/common/content_constants.h"
[email protected]d1ef81d2012-07-24 11:39:3637#include "content/public/common/url_constants.h"
[email protected]a23de8572009-06-03 02:16:3238#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1639#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3240#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5841#include "skia/ext/platform_canvas.h"
initial.commit09911bf2008-07-26 23:55:2942
[email protected]8ff00d72012-10-23 19:12:2143namespace content {
[email protected]e9ba4472008-09-14 15:42:4344namespace {
45
[email protected]93f230e02011-06-01 14:40:0046const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3747
[email protected]e9ba4472008-09-14 15:42:4348// Invoked when entries have been pruned, or removed. For example, if the
49// current entries are [google, digg, yahoo], with the current entry google,
50// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4751void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4952 bool from_front,
53 int count) {
[email protected]8ff00d72012-10-23 19:12:2154 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4955 details.from_front = from_front;
56 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2157 NotificationService::current()->Notify(
58 NOTIFICATION_NAV_LIST_PRUNED,
59 Source<NavigationController>(nav_controller),
60 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4361}
62
63// Ensure the given NavigationEntry has a valid state, so that WebKit does not
64// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3965//
[email protected]e9ba4472008-09-14 15:42:4366// An empty state is treated as a new navigation by WebKit, which would mean
67// losing the navigation entries and generating a new navigation entry after
68// this one. We don't want that. To avoid this we create a valid state which
69// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:0470void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
71 if (!entry->GetPageState().IsValid())
72 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4373}
74
[email protected]2ca1ea662012-10-04 02:26:3675NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
76 NavigationController::RestoreType type) {
77 switch (type) {
78 case NavigationController::RESTORE_CURRENT_SESSION:
79 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
80 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
81 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
82 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
83 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
84 }
85 NOTREACHED();
86 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
87}
88
[email protected]e9ba4472008-09-14 15:42:4389// Configure all the NavigationEntries in entries for restore. This resets
90// the transition type to reload and makes sure the content state isn't empty.
91void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2392 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]2ca1ea662012-10-04 02:26:3693 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:4394 for (size_t i = 0; i < entries->size(); ++i) {
95 // Use a transition type of reload so that we don't incorrectly increase
96 // the typed count.
[email protected]8ff00d72012-10-23 19:12:2197 (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:3698 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:4399 // NOTE(darin): This code is only needed for backwards compat.
[email protected]691aa2f2013-05-28 22:52:04100 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43101 }
102}
103
104// See NavigationController::IsURLInPageNavigation for how this works and why.
[email protected]ce760d742012-08-30 22:31:10105bool AreURLsInPageNavigation(const GURL& existing_url,
106 const GURL& new_url,
[email protected]b9d4dfdc2013-08-08 00:25:12107 bool renderer_says_in_page,
108 NavigationType navigation_type) {
[email protected]ce760d742012-08-30 22:31:10109 if (existing_url == new_url)
110 return renderer_says_in_page;
111
112 if (!new_url.has_ref()) {
[email protected]b9d4dfdc2013-08-08 00:25:12113 // When going back from the ref URL to the non ref one the navigation type
114 // is IN_PAGE.
115 return navigation_type == NAVIGATION_TYPE_IN_PAGE;
[email protected]192d8c5e2010-02-23 07:26:32116 }
[email protected]e9ba4472008-09-14 15:42:43117
118 url_canon::Replacements<char> replacements;
119 replacements.ClearRef();
120 return existing_url.ReplaceComponents(replacements) ==
121 new_url.ReplaceComponents(replacements);
122}
123
[email protected]bf70edce2012-06-20 22:32:22124// Determines whether or not we should be carrying over a user agent override
125// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21126bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22127 return last_entry && last_entry->GetIsOverridingUserAgent();
128}
129
[email protected]e9ba4472008-09-14 15:42:43130} // namespace
131
[email protected]d202a7c2012-01-04 07:53:47132// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29133
[email protected]9b51970d2011-12-09 23:10:23134const size_t kMaxEntryCountForTestingNotSet = -1;
135
[email protected]765b35502008-08-21 00:51:20136// static
[email protected]d202a7c2012-01-04 07:53:47137size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23138 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20139
[email protected]e6fec472013-05-14 05:29:02140// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20141// when testing.
142static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29143
[email protected]71fde352011-12-29 03:29:56144// static
[email protected]cdcb1dee2012-01-04 00:46:20145NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56146 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20147 const Referrer& referrer,
148 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56149 bool is_renderer_initiated,
150 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20151 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56152 // Allow the browser URL handler to rewrite the URL. This will, for example,
153 // remove "view-source:" from the beginning of the URL to get the URL that
154 // will actually be loaded. This real URL won't be shown to the user, just
155 // used internally.
156 GURL loaded_url(url);
157 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31158 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56159 &loaded_url, browser_context, &reverse_on_redirect);
160
161 NavigationEntryImpl* entry = new NavigationEntryImpl(
162 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56163 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56164 -1,
165 loaded_url,
166 referrer,
167 string16(),
168 transition,
169 is_renderer_initiated);
170 entry->SetVirtualURL(url);
171 entry->set_user_typed_url(url);
172 entry->set_update_virtual_url_with_url(reverse_on_redirect);
173 entry->set_extra_headers(extra_headers);
174 return entry;
175}
176
[email protected]cdcb1dee2012-01-04 00:46:20177// static
178void NavigationController::DisablePromptOnRepost() {
179 g_check_for_repost = false;
180}
181
[email protected]c5b88d82012-10-06 17:03:33182base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
183 base::Time t) {
184 // If |t| is between the water marks, we're in a run of duplicates
185 // or just getting out of it, so increase the high-water mark to get
186 // a time that probably hasn't been used before and return it.
187 if (low_water_mark_ <= t && t <= high_water_mark_) {
188 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
189 return high_water_mark_;
190 }
191
192 // Otherwise, we're clear of the last duplicate run, so reset the
193 // water marks.
194 low_water_mark_ = high_water_mark_ = t;
195 return t;
196}
197
[email protected]d202a7c2012-01-04 07:53:47198NavigationControllerImpl::NavigationControllerImpl(
[email protected]ec6c05f2013-10-23 18:41:57199 NavigationControllerDelegate* delegate,
[email protected]d1198fd2012-08-13 22:50:19200 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37201 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20202 pending_entry_(NULL),
203 last_committed_entry_index_(-1),
204 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47205 transient_entry_index_(-1),
[email protected]ec6c05f2013-10-23 18:41:57206 delegate_(delegate),
initial.commit09911bf2008-07-26 23:55:29207 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22208 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57209 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09210 is_initial_navigation_(true),
[email protected]c5b88d82012-10-06 17:03:33211 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31212 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]69e797f2013-04-30 01:10:22213 screenshot_manager_(new WebContentsScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37214 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29215}
216
[email protected]d202a7c2012-01-04 07:53:47217NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47218 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29219}
220
[email protected]d202a7c2012-01-04 07:53:47221WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]ec6c05f2013-10-23 18:41:57222 return delegate_->GetWebContents();
[email protected]fbc5e5f92012-01-02 06:08:32223}
224
[email protected]d202a7c2012-01-04 07:53:47225BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55226 return browser_context_;
227}
228
[email protected]d202a7c2012-01-04 07:53:47229void NavigationControllerImpl::SetBrowserContext(
230 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20231 browser_context_ = browser_context;
232}
233
[email protected]d202a7c2012-01-04 07:53:47234void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30235 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36236 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23237 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57238 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55239 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57240 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14241 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57242
[email protected]ce3fa3c2009-04-20 19:55:57243 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04244 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23245 NavigationEntryImpl* entry =
246 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
247 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04248 }
[email protected]03838e22011-06-06 15:27:14249 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57250
251 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36252 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57253}
254
[email protected]d202a7c2012-01-04 07:53:47255void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16256 ReloadInternal(check_for_repost, RELOAD);
257}
[email protected]d202a7c2012-01-04 07:53:47258void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16259 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
260}
[email protected]7c16976c2012-08-04 02:38:23261void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
262 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
263}
[email protected]1ccb3568d2010-02-19 10:51:16264
[email protected]d202a7c2012-01-04 07:53:47265void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
266 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36267 if (transient_entry_index_ != -1) {
268 // If an interstitial is showing, treat a reload as a navigation to the
269 // transient entry's URL.
[email protected]6286a3792013-10-09 04:03:27270 NavigationEntryImpl* transient_entry =
271 NavigationEntryImpl::FromNavigationEntry(GetTransientEntry());
272 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36273 return;
[email protected]6286a3792013-10-09 04:03:27274 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21275 Referrer(),
276 PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27277 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47278 return;
[email protected]669e0ba2012-08-30 23:57:36279 }
[email protected]cbab76d2008-10-13 22:42:47280
[email protected]59167c22013-06-03 18:07:32281 NavigationEntryImpl* entry = NULL;
282 int current_index = -1;
283
284 // If we are reloading the initial navigation, just use the current
285 // pending entry. Otherwise look up the current entry.
286 if (IsInitialNavigation() && pending_entry_) {
287 entry = pending_entry_;
288 // The pending entry might be in entries_ (e.g., after a Clone), so we
289 // should also update the current_index.
290 current_index = pending_entry_index_;
291 } else {
292 DiscardNonCommittedEntriesInternal();
293 current_index = GetCurrentEntryIndex();
294 if (current_index != -1) {
295 entry = NavigationEntryImpl::FromNavigationEntry(
296 GetEntryAtIndex(current_index));
297 }
[email protected]979a4bc2013-04-24 01:27:15298 }
[email protected]241db352013-04-22 18:04:05299
[email protected]59167c22013-06-03 18:07:32300 // If we are no where, then we can't reload. TODO(darin): We should add a
301 // CanReload method.
302 if (!entry)
303 return;
304
[email protected]eaaba7dd2013-10-14 02:38:07305 if (reload_type == NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL &&
306 entry->GetOriginalRequestURL().is_valid() && !entry->GetHasPostData()) {
307 // We may have been redirected when navigating to the current URL.
308 // Use the URL the user originally intended to visit, if it's valid and if a
309 // POST wasn't involved; the latter case avoids issues with sending data to
310 // the wrong page.
311 entry->SetURL(entry->GetOriginalRequestURL());
312 }
313
[email protected]cdcb1dee2012-01-04 00:46:20314 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32315 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30316 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07317 // they really want to do this. If they do, the dialog will call us back
318 // with check_for_repost = false.
[email protected]ec6c05f2013-10-23 18:41:57319 delegate_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02320
[email protected]106a0812010-03-18 00:15:12321 pending_reload_ = reload_type;
[email protected]ec6c05f2013-10-23 18:41:57322 delegate_->ActivateAndShowRepostFormWarningDialog();
initial.commit09911bf2008-07-26 23:55:29323 } else {
[email protected]59167c22013-06-03 18:07:32324 if (!IsInitialNavigation())
325 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26326
[email protected]bcd904482012-02-01 01:54:22327 // If we are reloading an entry that no longer belongs to the current
328 // site instance (for example, refreshing a page for just installed app),
329 // the reload must happen in a new process.
330 // The new entry must have a new page_id and site instance, so it behaves
331 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30332 // Tabs that are discarded due to low memory conditions may not have a site
333 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32334 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]7e58cb272012-03-30 21:22:30335 if (site_instance &&
336 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22337 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22338 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22339 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
340 CreateNavigationEntry(
341 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
342 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26343
[email protected]11535962012-02-09 21:02:10344 // Mark the reload type as NO_RELOAD, so navigation will not be considered
345 // a reload in the renderer.
346 reload_type = NavigationController::NO_RELOAD;
347
[email protected]e2caa032012-11-15 23:29:18348 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22349 pending_entry_ = nav_entry;
350 } else {
[email protected]59167c22013-06-03 18:07:32351 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22352 pending_entry_index_ = current_index;
353
354 // The title of the page being reloaded might have been removed in the
355 // meanwhile, so we need to revert to the default title upon reload and
356 // invalidate the previously cached title (SetTitle will do both).
357 // See Chromium issue 96041.
[email protected]59167c22013-06-03 18:07:32358 pending_entry_->SetTitle(string16());
[email protected]bcd904482012-02-01 01:54:22359
[email protected]59167c22013-06-03 18:07:32360 pending_entry_->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22361 }
362
[email protected]1ccb3568d2010-02-19 10:51:16363 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29364 }
365}
366
[email protected]d202a7c2012-01-04 07:53:47367void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12368 DCHECK(pending_reload_ != NO_RELOAD);
369 pending_reload_ = NO_RELOAD;
370}
371
[email protected]d202a7c2012-01-04 07:53:47372void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12373 if (pending_reload_ == NO_RELOAD) {
374 NOTREACHED();
375 } else {
376 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02377 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12378 }
379}
380
[email protected]cd2e15742013-03-08 04:08:31381bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09382 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11383}
384
[email protected]d202a7c2012-01-04 07:53:47385NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33386 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11387 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20388 return (index != -1) ? entries_[index].get() : NULL;
389}
390
[email protected]d202a7c2012-01-04 07:53:47391void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]765b35502008-08-21 00:51:20392 // When navigating to a new page, we don't know for sure if we will actually
393 // end up leaving the current page. The new page load could for example
394 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]59167c22013-06-03 18:07:32395 SetPendingEntry(entry);
396 NavigateToPendingEntry(NO_RELOAD);
397}
398
399void NavigationControllerImpl::SetPendingEntry(NavigationEntryImpl* entry) {
[email protected]cbab76d2008-10-13 22:42:47400 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20401 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21402 NotificationService::current()->Notify(
403 NOTIFICATION_NAV_ENTRY_PENDING,
404 Source<NavigationController>(this),
405 Details<NavigationEntry>(entry));
[email protected]765b35502008-08-21 00:51:20406}
407
[email protected]d202a7c2012-01-04 07:53:47408NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47409 if (transient_entry_index_ != -1)
410 return entries_[transient_entry_index_].get();
411 if (pending_entry_)
412 return pending_entry_;
413 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20414}
415
[email protected]d202a7c2012-01-04 07:53:47416NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19417 if (transient_entry_index_ != -1)
418 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32419 // The pending entry is safe to return for new (non-history), browser-
420 // initiated navigations. Most renderer-initiated navigations should not
421 // show the pending entry, to prevent URL spoof attacks.
422 //
423 // We make an exception for renderer-initiated navigations in new tabs, as
424 // long as no other page has tried to access the initial empty document in
425 // the new tab. If another page modifies this blank page, a URL spoof is
426 // possible, so we must stop showing the pending entry.
427 RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
[email protected]ec6c05f2013-10-23 18:41:57428 delegate_->GetRenderViewHost());
[email protected]59167c22013-06-03 18:07:32429 bool safe_to_show_pending =
430 pending_entry_ &&
431 // Require a new navigation.
[email protected]36fc0392011-12-25 03:59:51432 pending_entry_->GetPageID() == -1 &&
[email protected]59167c22013-06-03 18:07:32433 // Require either browser-initiated or an unmodified new tab.
434 (!pending_entry_->is_renderer_initiated() ||
435 (IsInitialNavigation() &&
436 !GetLastCommittedEntry() &&
437 !rvh->has_accessed_initial_document()));
438
439 // Also allow showing the pending entry for history navigations in a new tab,
440 // such as Ctrl+Back. In this case, no existing page is visible and no one
441 // can script the new tab before it commits.
442 if (!safe_to_show_pending &&
443 pending_entry_ &&
444 pending_entry_->GetPageID() != -1 &&
445 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34446 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32447 safe_to_show_pending = true;
448
449 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19450 return pending_entry_;
451 return GetLastCommittedEntry();
452}
453
[email protected]d202a7c2012-01-04 07:53:47454int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47455 if (transient_entry_index_ != -1)
456 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20457 if (pending_entry_index_ != -1)
458 return pending_entry_index_;
459 return last_committed_entry_index_;
460}
461
[email protected]d202a7c2012-01-04 07:53:47462NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20463 if (last_committed_entry_index_ == -1)
464 return NULL;
465 return entries_[last_committed_entry_index_].get();
466}
467
[email protected]d202a7c2012-01-04 07:53:47468bool NavigationControllerImpl::CanViewSource() const {
[email protected]ec6c05f2013-10-23 18:41:57469 const std::string& mime_type = delegate_->GetContentsMimeType();
[email protected]9d86c4982013-01-09 00:38:34470 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
471 !net::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27472 NavigationEntry* visible_entry = GetVisibleEntry();
473 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]ec6c05f2013-10-23 18:41:57474 is_viewable_mime_type && !delegate_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16475}
476
[email protected]d202a7c2012-01-04 07:53:47477int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55478 return last_committed_entry_index_;
479}
480
[email protected]d202a7c2012-01-04 07:53:47481int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25482 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55483 return static_cast<int>(entries_.size());
484}
485
[email protected]d202a7c2012-01-04 07:53:47486NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25487 int index) const {
488 return entries_.at(index).get();
489}
490
[email protected]d202a7c2012-01-04 07:53:47491NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25492 int offset) const {
[email protected]9ba14052012-06-22 23:50:03493 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55494 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20495 return NULL;
496
497 return entries_[index].get();
498}
499
[email protected]9ba14052012-06-22 23:50:03500int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46501 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03502}
503
[email protected]9677a3c2012-12-22 04:18:58504void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10505 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58506}
507
[email protected]1a3f5312013-04-26 21:00:10508void NavigationControllerImpl::SetScreenshotManager(
509 WebContentsScreenshotManager* manager) {
510 screenshot_manager_.reset(manager ? manager :
511 new WebContentsScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58512}
513
[email protected]d202a7c2012-01-04 07:53:47514bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20515 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
516}
517
[email protected]d202a7c2012-01-04 07:53:47518bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20519 int index = GetCurrentEntryIndex();
520 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
521}
522
[email protected]9ba14052012-06-22 23:50:03523bool NavigationControllerImpl::CanGoToOffset(int offset) const {
524 int index = GetIndexForOffset(offset);
525 return index >= 0 && index < GetEntryCount();
526}
527
[email protected]d202a7c2012-01-04 07:53:47528void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20529 if (!CanGoBack()) {
530 NOTREACHED();
531 return;
532 }
533
534 // Base the navigation on where we are now...
535 int current_index = GetCurrentEntryIndex();
536
[email protected]cbab76d2008-10-13 22:42:47537 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20538
539 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25540 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21541 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51542 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21543 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16544 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20545}
546
[email protected]d202a7c2012-01-04 07:53:47547void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20548 if (!CanGoForward()) {
549 NOTREACHED();
550 return;
551 }
552
[email protected]cbab76d2008-10-13 22:42:47553 bool transient = (transient_entry_index_ != -1);
554
[email protected]765b35502008-08-21 00:51:20555 // Base the navigation on where we are now...
556 int current_index = GetCurrentEntryIndex();
557
[email protected]cbab76d2008-10-13 22:42:47558 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20559
[email protected]cbab76d2008-10-13 22:42:47560 pending_entry_index_ = current_index;
561 // If there was a transient entry, we removed it making the current index
562 // the next page.
563 if (!transient)
564 pending_entry_index_++;
565
[email protected]022af742011-12-28 18:37:25566 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21567 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51568 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21569 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16570 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20571}
572
[email protected]d202a7c2012-01-04 07:53:47573void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20574 if (index < 0 || index >= static_cast<int>(entries_.size())) {
575 NOTREACHED();
576 return;
577 }
578
[email protected]cbab76d2008-10-13 22:42:47579 if (transient_entry_index_ != -1) {
580 if (index == transient_entry_index_) {
581 // Nothing to do when navigating to the transient.
582 return;
583 }
584 if (index > transient_entry_index_) {
585 // Removing the transient is goint to shift all entries by 1.
586 index--;
587 }
588 }
589
590 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20591
592 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25593 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21594 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51595 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21596 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16597 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20598}
599
[email protected]d202a7c2012-01-04 07:53:47600void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03601 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20602 return;
603
[email protected]9ba14052012-06-22 23:50:03604 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20605}
606
[email protected]41374f12013-07-24 02:49:28607bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
608 if (index == last_committed_entry_index_ ||
609 index == pending_entry_index_)
610 return false;
[email protected]6a13a6c2011-12-20 21:47:12611
[email protected]43032342011-03-21 14:10:31612 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28613 return true;
[email protected]cbab76d2008-10-13 22:42:47614}
615
[email protected]d202a7c2012-01-04 07:53:47616void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23617 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32618 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31619 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51620 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
621 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32622 }
623}
624
[email protected]d202a7c2012-01-04 07:53:47625void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47626 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21627 const Referrer& referrer,
628 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47629 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47630 LoadURLParams params(url);
631 params.referrer = referrer;
632 params.transition_type = transition;
633 params.extra_headers = extra_headers;
634 LoadURLWithParams(params);
635}
636
637void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]e11f0e92013-06-12 15:12:03638 TRACE_EVENT0("browser", "NavigationControllerImpl::LoadURLWithParams");
[email protected]8ff00d72012-10-23 19:12:21639 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18640 return;
641
[email protected]cf002332012-08-14 19:17:47642 // Checks based on params.load_type.
643 switch (params.load_type) {
644 case LOAD_TYPE_DEFAULT:
645 break;
646 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e9a82042013-09-15 03:38:29647 if (!params.url.SchemeIs(kHttpScheme) &&
[email protected]4654bfe2013-08-26 03:36:58648 !params.url.SchemeIs(kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47649 NOTREACHED() << "Http post load must use http(s) scheme.";
650 return;
651 }
652 break;
653 case LOAD_TYPE_DATA:
654 if (!params.url.SchemeIs(chrome::kDataScheme)) {
655 NOTREACHED() << "Data load must use data scheme.";
656 return;
657 }
658 break;
659 default:
660 NOTREACHED();
661 break;
662 };
[email protected]e47ae9472011-10-13 19:48:34663
[email protected]e47ae9472011-10-13 19:48:34664 // The user initiated a load, we don't need to reload anymore.
665 needs_reload_ = false;
666
[email protected]cf002332012-08-14 19:17:47667 bool override = false;
668 switch (params.override_user_agent) {
669 case UA_OVERRIDE_INHERIT:
670 override = ShouldKeepOverride(GetLastCommittedEntry());
671 break;
672 case UA_OVERRIDE_TRUE:
673 override = true;
674 break;
675 case UA_OVERRIDE_FALSE:
676 override = false;
677 break;
678 default:
679 NOTREACHED();
680 break;
[email protected]d1ef81d2012-07-24 11:39:36681 }
682
[email protected]d1ef81d2012-07-24 11:39:36683 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
684 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47685 params.url,
686 params.referrer,
687 params.transition_type,
688 params.is_renderer_initiated,
689 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36690 browser_context_));
[email protected]866fa2cc2013-07-22 22:19:52691 if (params.should_replace_current_entry)
[email protected]e2caa032012-11-15 23:29:18692 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13693 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47694 entry->SetIsOverridingUserAgent(override);
695 entry->set_transferred_global_request_id(
696 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37697 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36698
[email protected]cf002332012-08-14 19:17:47699 switch (params.load_type) {
700 case LOAD_TYPE_DEFAULT:
701 break;
702 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
703 entry->SetHasPostData(true);
704 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46705 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47706 break;
707 case LOAD_TYPE_DATA:
708 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
709 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37710 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47711 break;
712 default:
713 NOTREACHED();
714 break;
715 };
[email protected]132e281a2012-07-31 18:32:44716
717 LoadEntry(entry);
718}
719
[email protected]d202a7c2012-01-04 07:53:47720bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43721 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8ff00d72012-10-23 19:12:21722 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31723 is_initial_navigation_ = false;
724
[email protected]0e8db942008-09-24 21:21:48725 // Save the previous state before we clobber it.
726 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51727 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55728 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48729 } else {
730 details->previous_url = GURL();
731 details->previous_entry_index = -1;
732 }
[email protected]ecd9d8702008-08-28 22:10:17733
[email protected]77362eb2011-08-01 17:18:38734 // If we have a pending entry at this point, it should have a SiteInstance.
735 // Restored entries start out with a null SiteInstance, but we should have
736 // assigned one in NavigateToPendingEntry.
737 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43738
[email protected]bcd904482012-02-01 01:54:22739 // If we are doing a cross-site reload, we need to replace the existing
740 // navigation entry, not add another entry to the history. This has the side
741 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18742 // Or if we are doing a cross-site redirect navigation,
743 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59744 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18745 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22746
[email protected]e9ba4472008-09-14 15:42:43747 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48748 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20749
[email protected]b9d4dfdc2013-08-08 00:25:12750 // is_in_page must be computed before the entry gets committed.
751 details->is_in_page = IsURLInPageNavigation(
752 params.url, params.was_within_same_page, details->type);
753
[email protected]0e8db942008-09-24 21:21:48754 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21755 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59756 RendererDidNavigateToNewPage(params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43757 break;
[email protected]8ff00d72012-10-23 19:12:21758 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43759 RendererDidNavigateToExistingPage(params);
760 break;
[email protected]8ff00d72012-10-23 19:12:21761 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43762 RendererDidNavigateToSamePage(params);
763 break;
[email protected]8ff00d72012-10-23 19:12:21764 case NAVIGATION_TYPE_IN_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59765 RendererDidNavigateInPage(params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43766 break;
[email protected]8ff00d72012-10-23 19:12:21767 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43768 RendererDidNavigateNewSubframe(params);
769 break;
[email protected]8ff00d72012-10-23 19:12:21770 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43771 if (!RendererDidNavigateAutoSubframe(params))
772 return false;
773 break;
[email protected]8ff00d72012-10-23 19:12:21774 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49775 // If a pending navigation was in progress, this canceled it. We should
776 // discard it and make sure it is removed from the URL bar. After that,
777 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43778 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49779 if (pending_entry_) {
780 DiscardNonCommittedEntries();
[email protected]ec6c05f2013-10-23 18:41:57781 delegate_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49782 }
[email protected]e9ba4472008-09-14 15:42:43783 return false;
784 default:
785 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20786 }
787
[email protected]688aa65c62012-09-28 04:32:22788 // At this point, we know that the navigation has just completed, so
789 // record the time.
790 //
791 // TODO(akalin): Use "sane time" as described in
792 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33793 base::Time timestamp =
794 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
795 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22796 << timestamp.ToInternalValue();
797
[email protected]f233e4232013-02-23 00:55:14798 // We should not have a pending entry anymore. Clear it again in case any
799 // error cases above forgot to do so.
800 DiscardNonCommittedEntriesInternal();
801
[email protected]e9ba4472008-09-14 15:42:43802 // All committed entries should have nonempty content state so WebKit doesn't
803 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04804 DCHECK(params.page_state.IsValid());
[email protected]10f417c52011-12-28 21:04:23805 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14806 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22807 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44808 active_entry->SetHttpStatusCode(params.http_status_code);
[email protected]691aa2f2013-05-28 22:52:04809 active_entry->SetPageState(params.page_state);
[email protected]132e281a2012-07-31 18:32:44810
[email protected]97d8f0d2013-10-29 16:49:21811 // Once it is committed, we no longer need to track several pieces of state on
812 // the entry.
813 active_entry->ResetForCommit();
[email protected]60d6cca2013-04-30 08:47:13814
[email protected]49bd30e62011-03-22 20:12:59815 // The active entry's SiteInstance should match our SiteInstance.
[email protected]ec6c05f2013-10-23 18:41:57816 CHECK(active_entry->site_instance() == delegate_->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59817
[email protected]b26de072013-02-23 02:33:44818 // Remember the bindings the renderer process has at this point, so that
819 // we do not grant this entry additional bindings if we come back to it.
820 active_entry->SetBindings(
[email protected]ec6c05f2013-10-23 18:41:57821 delegate_->GetRenderViewHost()->GetEnabledBindings());
[email protected]b26de072013-02-23 02:33:44822
[email protected]e9ba4472008-09-14 15:42:43823 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00824 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58825 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21826 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24827 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31828 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00829 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29830
[email protected]e9ba4472008-09-14 15:42:43831 return true;
initial.commit09911bf2008-07-26 23:55:29832}
833
[email protected]8ff00d72012-10-23 19:12:21834NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43835 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43836 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46837 // The renderer generates the page IDs, and so if it gives us the invalid
838 // page ID (-1) we know it didn't actually navigate. This happens in a few
839 // cases:
840 //
841 // - If a page makes a popup navigated to about blank, and then writes
842 // stuff like a subframe navigated to a real page. We'll get the commit
843 // for the subframe, but there won't be any commit for the outer page.
844 //
845 // - We were also getting these for failed loads (for example, bug 21849).
846 // The guess is that we get a "load commit" for the alternate error page,
847 // but that doesn't affect the page ID, so we get the "old" one, which
848 // could be invalid. This can also happen for a cross-site transition
849 // that causes us to swap processes. Then the error page load will be in
850 // a new process with no page IDs ever assigned (and hence a -1 value),
851 // yet the navigation controller still might have previous pages in its
852 // list.
853 //
854 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21855 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43856 }
857
[email protected]ec6c05f2013-10-23 18:41:57858 if (params.page_id > delegate_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43859 // Greater page IDs than we've ever seen before are new pages. We may or may
860 // not have a pending entry for the page, and this may or may not be the
861 // main frame.
[email protected]8ff00d72012-10-23 19:12:21862 if (PageTransitionIsMainFrame(params.transition))
863 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09864
865 // When this is a new subframe navigation, we should have a committed page
866 // for which it's a suframe in. This may not be the case when an iframe is
867 // navigated on a popup navigated to about:blank (the iframe would be
868 // written into the popup by script on the main page). For these cases,
869 // there isn't any navigation stuff we can do, so just ignore it.
870 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21871 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09872
873 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21874 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43875 }
876
[email protected]60d6cca2013-04-30 08:47:13877 // We only clear the session history when navigating to a new page.
878 DCHECK(!params.history_list_was_cleared);
879
[email protected]e9ba4472008-09-14 15:42:43880 // Now we know that the notification is for an existing page. Find that entry.
881 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]ec6c05f2013-10-23 18:41:57882 delegate_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43883 params.page_id);
884 if (existing_entry_index == -1) {
885 // The page was not found. It could have been pruned because of the limit on
886 // back/forward entries (not likely since we'll usually tell it to navigate
887 // to such entries). It could also mean that the renderer is smoking crack.
888 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46889
890 // Because the unknown entry has committed, we risk showing the wrong URL in
891 // release builds. Instead, we'll kill the renderer process to be safe.
892 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]8ff00d72012-10-23 19:12:21893 RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52894
[email protected]7ec6f382011-11-11 01:28:17895 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10896 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
897 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17898 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52899 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17900 temp.append("#max");
[email protected]ec6c05f2013-10-23 18:41:57901 temp.append(base::IntToString(delegate_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17902 temp.append("#frame");
903 temp.append(base::IntToString(params.frame_id));
904 temp.append("#ids");
905 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10906 // Append entry metadata (e.g., 3_7x):
907 // 3: page_id
908 // 7: SiteInstance ID, or N for null
909 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51910 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10911 temp.append("_");
912 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33913 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17914 else
[email protected]8c380582011-12-02 03:16:10915 temp.append("N");
[email protected]ec6c05f2013-10-23 18:41:57916 if (entries_[i]->site_instance() != delegate_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17917 temp.append("x");
918 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52919 }
920 GURL url(temp);
[email protected]9f76c1e2012-03-05 15:15:58921 static_cast<RenderViewHostImpl*>(
[email protected]ec6c05f2013-10-23 18:41:57922 delegate_->GetRenderViewHost())->Send(
[email protected]9f76c1e2012-03-05 15:15:58923 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21924 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43925 }
[email protected]10f417c52011-12-28 21:04:23926 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43927
[email protected]8ff00d72012-10-23 19:12:21928 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52929 // All manual subframes would get new IDs and were handled above, so we
930 // know this is auto. Since the current page was found in the navigation
931 // entry list, we're guaranteed to have a last committed entry.
932 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21933 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52934 }
935
936 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43937 if (pending_entry_ &&
[email protected]59167c22013-06-03 18:07:32938 !pending_entry_->is_renderer_initiated() &&
[email protected]e9ba4472008-09-14 15:42:43939 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51940 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24941 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43942 // In this case, we have a pending entry for a URL but WebCore didn't do a
943 // new navigation. This happens when you press enter in the URL bar to
944 // reload. We will create a pending entry, but WebKit will convert it to
945 // a reload since it's the same page and not create a new entry for it
946 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24947 // this). If this matches the last committed entry, we want to just ignore
948 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21949 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43950 }
951
[email protected]fc60f222008-12-18 17:36:54952 // Any toplevel navigations with the same base (minus the reference fragment)
953 // are in-page navigations. We weeded out subframe navigations above. Most of
954 // the time this doesn't matter since WebKit doesn't tell us about subframe
955 // navigations that don't actually navigate, but it can happen when there is
956 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59957 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
[email protected]b9d4dfdc2013-08-08 00:25:12958 params.was_within_same_page,
959 NAVIGATION_TYPE_UNKNOWN)) {
[email protected]8ff00d72012-10-23 19:12:21960 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59961 }
[email protected]fc60f222008-12-18 17:36:54962
[email protected]e9ba4472008-09-14 15:42:43963 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09964 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21965 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43966}
967
[email protected]d202a7c2012-01-04 07:53:47968bool NavigationControllerImpl::IsRedirect(
[email protected]09b8f82f2009-06-16 20:22:11969 const ViewHostMsg_FrameNavigate_Params& params) {
970 // For main frame transition, we judge by params.transition.
971 // Otherwise, by params.redirects.
[email protected]8ff00d72012-10-23 19:12:21972 if (PageTransitionIsMainFrame(params.transition)) {
973 return PageTransitionIsRedirect(params.transition);
[email protected]09b8f82f2009-06-16 20:22:11974 }
975 return params.redirects.size() > 1;
976}
977
[email protected]d202a7c2012-01-04 07:53:47978void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]e6fec472013-05-14 05:29:02979 const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23980 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41981 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34982 // Only make a copy of the pending entry if it is appropriate for the new page
983 // that was just loaded. We verify this at a coarse grain by checking that
984 // the SiteInstance hasn't been assigned to something else.
985 if (pending_entry_ &&
986 (!pending_entry_->site_instance() ||
[email protected]ec6c05f2013-10-23 18:41:57987 pending_entry_->site_instance() == delegate_->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:23988 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43989
990 // Don't use the page type from the pending entry. Some interstitial page
991 // may have set the type to interstitial. Once we commit, however, the page
992 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:21993 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:41994 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:43995 } else {
[email protected]10f417c52011-12-28 21:04:23996 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:24997
998 // Find out whether the new entry needs to update its virtual URL on URL
999 // change and set up the entry accordingly. This is needed to correctly
1000 // update the virtual URL when replaceState is called after a pushState.
1001 GURL url = params.url;
1002 bool needs_update = false;
1003 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1004 &url, browser_context_, &needs_update);
1005 new_entry->set_update_virtual_url_with_url(needs_update);
1006
[email protected]f1eb87a2011-05-06 17:49:411007 // When navigating to a new page, give the browser URL handler a chance to
1008 // update the virtual URL based on the new URL. For example, this is needed
1009 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1010 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241011 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431012 }
1013
[email protected]ad23a092011-12-28 07:02:041014 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411015 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:321016 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:251017 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511018 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251019 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331020 new_entry->set_site_instance(
[email protected]ec6c05f2013-10-23 18:41:571021 static_cast<SiteInstanceImpl*>(delegate_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511022 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051023 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231024 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221025 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431026
[email protected]60d6cca2013-04-30 08:47:131027 DCHECK(!params.history_list_was_cleared || !replace_entry);
1028 // The browser requested to clear the session history when it initiated the
1029 // navigation. Now we know that the renderer has updated its state accordingly
1030 // and it is safe to also clear the browser side history.
1031 if (params.history_list_was_cleared) {
1032 DiscardNonCommittedEntriesInternal();
1033 entries_.clear();
1034 last_committed_entry_index_ = -1;
1035 }
1036
[email protected]4ac5fbe2012-09-01 02:19:591037 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:431038}
1039
[email protected]d202a7c2012-01-04 07:53:471040void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:431041 const ViewHostMsg_FrameNavigate_Params& params) {
1042 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:211043 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:431044
1045 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091046 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1047 // with new information from the renderer.
[email protected]ec6c05f2013-10-23 18:41:571048 int entry_index = GetEntryIndexWithPageID(delegate_->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111049 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431050 DCHECK(entry_index >= 0 &&
1051 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231052 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431053
[email protected]5ccd4dc2012-10-24 02:28:141054 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041055 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:321056 if (entry->update_virtual_url_with_url())
1057 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141058
1059 // The redirected to page should not inherit the favicon from the previous
1060 // page.
1061 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481062 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141063
1064 // The site instance will normally be the same except during session restore,
1065 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431066 DCHECK(entry->site_instance() == NULL ||
[email protected]ec6c05f2013-10-23 18:41:571067 entry->site_instance() == delegate_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331068 entry->set_site_instance(
[email protected]ec6c05f2013-10-23 18:41:571069 static_cast<SiteInstanceImpl*>(delegate_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431070
[email protected]36fc0392011-12-25 03:59:511071 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051072 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411073
[email protected]e9ba4472008-09-14 15:42:431074 // The entry we found in the list might be pending if the user hit
1075 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591076 // list, we can just discard the pending pointer). We should also discard the
1077 // pending entry if it corresponds to a different navigation, since that one
1078 // is now likely canceled. If it is not canceled, we will treat it as a new
1079 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431080 //
1081 // Note that we need to use the "internal" version since we don't want to
1082 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491083 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391084
[email protected]80858db52009-10-15 00:35:181085 // If a transient entry was removed, the indices might have changed, so we
1086 // have to query the entry index again.
1087 last_committed_entry_index_ =
[email protected]ec6c05f2013-10-23 18:41:571088 GetEntryIndexWithPageID(delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431089}
1090
[email protected]d202a7c2012-01-04 07:53:471091void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:431092 const ViewHostMsg_FrameNavigate_Params& params) {
1093 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091094 // entry for this page ID. This entry is guaranteed to exist by
1095 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231096 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]ec6c05f2013-10-23 18:41:571097 delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431098
1099 // We assign the entry's unique ID to be that of the new one. Since this is
1100 // always the result of a user action, we want to dismiss infobars, etc. like
1101 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511102 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431103
[email protected]a0e69262009-06-03 19:08:481104 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321105 if (existing_entry->update_virtual_url_with_url())
1106 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041107 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481108
[email protected]cbab76d2008-10-13 22:42:471109 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431110}
1111
[email protected]d202a7c2012-01-04 07:53:471112void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:471113 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211114 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431115 "WebKit should only tell us about in-page navs for the main frame.";
1116 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231117 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]ec6c05f2013-10-23 18:41:571118 delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431119
1120 // Reference fragment navigation. We're guaranteed to have the last_committed
1121 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031122 // reference fragments, of course). We'll update the URL of the existing
1123 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041124 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031125 if (existing_entry->update_virtual_url_with_url())
1126 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431127
1128 // This replaces the existing entry since the page ID didn't change.
1129 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031130
[email protected]6eebaab2012-11-15 04:39:491131 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031132
1133 // If a transient entry was removed, the indices might have changed, so we
1134 // have to query the entry index again.
1135 last_committed_entry_index_ =
[email protected]ec6c05f2013-10-23 18:41:571136 GetEntryIndexWithPageID(delegate_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431137}
1138
[email protected]d202a7c2012-01-04 07:53:471139void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:431140 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]026aac22013-07-10 02:09:111141 if (PageTransitionCoreTypeIs(params.transition,
1142 PAGE_TRANSITION_AUTO_SUBFRAME)) {
[email protected]09b8f82f2009-06-16 20:22:111143 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141144 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111145 return;
1146 }
[email protected]09b8f82f2009-06-16 20:22:111147
[email protected]e9ba4472008-09-14 15:42:431148 // Manual subframe navigations just get the current entry cloned so the user
1149 // can go back or forward to it. The actual subframe information will be
1150 // stored in the page state for each of those entries. This happens out of
1151 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091152 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1153 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231154 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1155 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511156 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451157 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431158}
1159
[email protected]d202a7c2012-01-04 07:53:471160bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:431161 const ViewHostMsg_FrameNavigate_Params& params) {
1162 // We're guaranteed to have a previously committed entry, and we now need to
1163 // handle navigation inside of a subframe in it without creating a new entry.
1164 DCHECK(GetLastCommittedEntry());
1165
1166 // Handle the case where we're navigating back/forward to a previous subframe
1167 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1168 // header file. In case "1." this will be a NOP.
1169 int entry_index = GetEntryIndexWithPageID(
[email protected]ec6c05f2013-10-23 18:41:571170 delegate_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431171 params.page_id);
1172 if (entry_index < 0 ||
1173 entry_index >= static_cast<int>(entries_.size())) {
1174 NOTREACHED();
1175 return false;
1176 }
1177
1178 // Update the current navigation entry in case we're going back/forward.
1179 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431180 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141181 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431182 return true;
1183 }
[email protected]f233e4232013-02-23 00:55:141184
1185 // We do not need to discard the pending entry in this case, since we will
1186 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431187 return false;
1188}
1189
[email protected]d202a7c2012-01-04 07:53:471190int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231191 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201192 const NavigationEntries::const_iterator i(std::find(
1193 entries_.begin(),
1194 entries_.end(),
1195 entry));
1196 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1197}
1198
[email protected]ce760d742012-08-30 22:31:101199bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121200 const GURL& url,
1201 bool renderer_says_in_page,
1202 NavigationType navigation_type) const {
[email protected]10f417c52011-12-28 21:04:231203 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101204 return last_committed && AreURLsInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121205 last_committed->GetURL(), url, renderer_says_in_page, navigation_type);
[email protected]e9ba4472008-09-14 15:42:431206}
1207
[email protected]d202a7c2012-01-04 07:53:471208void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501209 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471210 const NavigationControllerImpl& source =
1211 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571212 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551213 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571214
[email protected]a26023822011-12-29 00:23:551215 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571216 return; // Nothing new to do.
1217
1218 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551219 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571220
[email protected]fdac6ade2013-07-20 01:06:301221 for (SessionStorageNamespaceMap::const_iterator it =
1222 source.session_storage_namespace_map_.begin();
1223 it != source.session_storage_namespace_map_.end();
1224 ++it) {
1225 SessionStorageNamespaceImpl* source_namespace =
1226 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1227 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1228 }
[email protected]4e6419c2010-01-15 04:50:341229
[email protected]2ca1ea662012-10-04 02:26:361230 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571231
1232 // Copy the max page id map from the old tab to the new tab. This ensures
1233 // that new and existing navigations in the tab's current SiteInstances
1234 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571235 delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
[email protected]ce3fa3c2009-04-20 19:55:571236}
1237
[email protected]d202a7c2012-01-04 07:53:471238void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501239 NavigationController* temp) {
[email protected]474f8512013-05-31 22:31:161240 // It is up to callers to check the invariants before calling this.
1241 CHECK(CanPruneAllButVisible());
1242
[email protected]d202a7c2012-01-04 07:53:471243 NavigationControllerImpl* source =
1244 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191245 // The SiteInstance and page_id of the last committed entry needs to be
1246 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571247 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1248 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231249 NavigationEntryImpl* last_committed =
1250 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571251 scoped_refptr<SiteInstance> site_instance(
[email protected]474f8512013-05-31 22:31:161252 last_committed->site_instance());
1253 int32 minimum_page_id = last_committed->GetPageID();
1254 int32 max_page_id =
[email protected]ec6c05f2013-10-23 18:41:571255 delegate_->GetMaxPageIDForSiteInstance(site_instance.get());
[email protected]e1cd5452010-08-26 18:03:251256
1257 // Remove all the entries leaving the active entry.
[email protected]474f8512013-05-31 22:31:161258 PruneAllButVisibleInternal();
[email protected]e1cd5452010-08-26 18:03:251259
[email protected]474f8512013-05-31 22:31:161260 // We now have one entry, possibly with a new pending entry. Ensure that
1261 // adding the entries from source won't put us over the limit.
1262 DCHECK_EQ(1, GetEntryCount());
1263 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251264
[email protected]47e020a2010-10-15 14:43:371265 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]474f8512013-05-31 22:31:161266 // we don't want to copy over the transient entry. Ignore any pending entry,
1267 // since it has not committed in source.
1268 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251269 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551270 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251271 else
1272 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371273 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251274
1275 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551276 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141277
[email protected]ec6c05f2013-10-23 18:41:571278 delegate_->SetHistoryLengthAndPrune(site_instance.get(),
1279 max_source_index,
1280 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571281
1282 // Copy the max page id map from the old tab to the new tab. This ensures
1283 // that new and existing navigations in the tab's current SiteInstances
1284 // are identified properly.
[email protected]ec6c05f2013-10-23 18:41:571285 delegate_->CopyMaxPageIDsFrom(source->delegate()->GetWebContents());
[email protected]91854cd2012-01-10 19:43:571286
1287 // If there is a last committed entry, be sure to include it in the new
1288 // max page ID map.
1289 if (max_page_id > -1) {
[email protected]ec6c05f2013-10-23 18:41:571290 delegate_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
1291 max_page_id);
[email protected]91854cd2012-01-10 19:43:571292 }
[email protected]e1cd5452010-08-26 18:03:251293}
1294
[email protected]474f8512013-05-31 22:31:161295bool NavigationControllerImpl::CanPruneAllButVisible() {
1296 // If there is no last committed entry, we cannot prune. Even if there is a
1297 // pending entry, it may not commit, leaving this WebContents blank, despite
1298 // possibly giving it new entries via CopyStateFromAndPrune.
1299 if (last_committed_entry_index_ == -1)
1300 return false;
[email protected]9350602e2013-02-26 23:27:441301
[email protected]474f8512013-05-31 22:31:161302 // We cannot prune if there is a pending entry at an existing entry index.
1303 // It may not commit, so we have to keep the last committed entry, and thus
1304 // there is no sensible place to keep the pending entry. It is ok to have
1305 // a new pending entry, which can optionally commit as a new navigation.
1306 if (pending_entry_index_ != -1)
1307 return false;
1308
1309 // We should not prune if we are currently showing a transient entry.
1310 if (transient_entry_index_ != -1)
1311 return false;
1312
1313 return true;
1314}
1315
1316void NavigationControllerImpl::PruneAllButVisible() {
1317 PruneAllButVisibleInternal();
1318
1319 // We should still have a last committed entry.
1320 DCHECK_NE(-1, last_committed_entry_index_);
[email protected]9350602e2013-02-26 23:27:441321
[email protected]9350602e2013-02-26 23:27:441322 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1323 // SetHistoryLengthAndPrune, because it will create history_length additional
1324 // history entries.
1325 // TODO(jochen): This API is confusing and we should clean it up.
1326 // http://crbug.com/178491
[email protected]6286a3792013-10-09 04:03:271327 NavigationEntryImpl* entry =
1328 NavigationEntryImpl::FromNavigationEntry(GetVisibleEntry());
[email protected]ec6c05f2013-10-23 18:41:571329 delegate_->SetHistoryLengthAndPrune(
[email protected]9350602e2013-02-26 23:27:441330 entry->site_instance(), 0, entry->GetPageID());
1331}
1332
[email protected]474f8512013-05-31 22:31:161333void NavigationControllerImpl::PruneAllButVisibleInternal() {
1334 // It is up to callers to check the invariants before calling this.
1335 CHECK(CanPruneAllButVisible());
[email protected]97b6c4f2010-09-27 19:31:261336
[email protected]474f8512013-05-31 22:31:161337 // Erase all entries but the last committed entry. There may still be a
1338 // new pending entry after this.
1339 entries_.erase(entries_.begin(),
1340 entries_.begin() + last_committed_entry_index_);
1341 entries_.erase(entries_.begin() + 1, entries_.end());
1342 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261343}
1344
[email protected]15f46dc2013-01-24 05:40:241345void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101346 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241347}
1348
[email protected]d1198fd2012-08-13 22:50:191349void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301350 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211351 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191352 if (!session_storage_namespace)
1353 return;
1354
1355 // We can't overwrite an existing SessionStorage without violating spec.
1356 // Attempts to do so may give a tab access to another tab's session storage
1357 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301358 bool successful_insert = session_storage_namespace_map_.insert(
1359 make_pair(partition_id,
1360 static_cast<SessionStorageNamespaceImpl*>(
1361 session_storage_namespace)))
1362 .second;
1363 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191364}
1365
[email protected]d202a7c2012-01-04 07:53:471366void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561367 max_restored_page_id_ = max_id;
1368}
1369
[email protected]d202a7c2012-01-04 07:53:471370int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561371 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551372}
1373
1374SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301375NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1376 std::string partition_id;
1377 if (instance) {
1378 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1379 // this if statement so |instance| must not be NULL.
1380 partition_id =
1381 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1382 browser_context_, instance->GetSiteURL());
1383 }
[email protected]d1198fd2012-08-13 22:50:191384
[email protected]fdac6ade2013-07-20 01:06:301385 SessionStorageNamespaceMap::const_iterator it =
1386 session_storage_namespace_map_.find(partition_id);
1387 if (it != session_storage_namespace_map_.end())
1388 return it->second.get();
1389
1390 // Create one if no one has accessed session storage for this partition yet.
1391 //
1392 // TODO(ajwong): Should this use the |partition_id| directly rather than
1393 // re-lookup via |instance|? http://crbug.com/142685
1394 StoragePartition* partition =
1395 BrowserContext::GetStoragePartition(browser_context_, instance);
1396 SessionStorageNamespaceImpl* session_storage_namespace =
1397 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411398 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301399 partition->GetDOMStorageContext()));
1400 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1401
1402 return session_storage_namespace;
1403}
1404
1405SessionStorageNamespace*
1406NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1407 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1408 return GetSessionStorageNamespace(NULL);
1409}
1410
1411const SessionStorageNamespaceMap&
1412NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1413 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551414}
[email protected]d202a7c2012-01-04 07:53:471415
1416bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561417 return needs_reload_;
1418}
[email protected]a26023822011-12-29 00:23:551419
[email protected]46bb5e9c2013-10-03 22:16:471420void NavigationControllerImpl::SetNeedsReload() {
1421 needs_reload_ = true;
1422}
1423
[email protected]d202a7c2012-01-04 07:53:471424void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551425 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121426 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311427
1428 DiscardNonCommittedEntries();
1429
1430 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121431 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311432 last_committed_entry_index_--;
1433}
1434
[email protected]d202a7c2012-01-04 07:53:471435void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471436 bool transient = transient_entry_index_ != -1;
1437 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291438
[email protected]cbab76d2008-10-13 22:42:471439 // If there was a transient entry, invalidate everything so the new active
1440 // entry state is shown.
1441 if (transient) {
[email protected]ec6c05f2013-10-23 18:41:571442 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471443 }
initial.commit09911bf2008-07-26 23:55:291444}
1445
[email protected]d202a7c2012-01-04 07:53:471446NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251447 return pending_entry_;
1448}
1449
[email protected]d202a7c2012-01-04 07:53:471450int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551451 return pending_entry_index_;
1452}
1453
[email protected]d202a7c2012-01-04 07:53:471454void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1455 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211456 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201457
1458 // Copy the pending entry's unique ID to the committed entry.
1459 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231460 const NavigationEntryImpl* const pending_entry =
1461 (pending_entry_index_ == -1) ?
1462 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201463 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511464 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201465
[email protected]cbab76d2008-10-13 22:42:471466 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201467
1468 int current_size = static_cast<int>(entries_.size());
1469
[email protected]765b35502008-08-21 00:51:201470 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451471 // Prune any entries which are in front of the current entry.
1472 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311473 // last_committed_entry_index_ must be updated here since calls to
1474 // NotifyPrunedEntries() below may re-enter and we must make sure
1475 // last_committed_entry_index_ is not left in an invalid state.
1476 if (replace)
1477 --last_committed_entry_index_;
1478
[email protected]c12bf1a12008-09-17 16:28:491479 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311480 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491481 num_pruned++;
[email protected]765b35502008-08-21 00:51:201482 entries_.pop_back();
1483 current_size--;
1484 }
[email protected]c12bf1a12008-09-17 16:28:491485 if (num_pruned > 0) // Only notify if we did prune something.
1486 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201487 }
1488
[email protected]944822b2012-03-02 20:57:251489 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201490
[email protected]10f417c52011-12-28 21:04:231491 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201492 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431493
1494 // This is a new page ID, so we need everybody to know about it.
[email protected]ec6c05f2013-10-23 18:41:571495 delegate_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291496}
1497
[email protected]944822b2012-03-02 20:57:251498void NavigationControllerImpl::PruneOldestEntryIfFull() {
1499 if (entries_.size() >= max_entry_count()) {
1500 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021501 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251502 RemoveEntryAtIndex(0);
1503 NotifyPrunedEntries(this, true, 1);
1504 }
1505}
1506
[email protected]d202a7c2012-01-04 07:53:471507void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011508 needs_reload_ = false;
1509
[email protected]83c2e232011-10-07 21:36:461510 // If we were navigating to a slow-to-commit page, and the user performs
1511 // a session history navigation to the last committed page, RenderViewHost
1512 // will force the throbber to start, but WebKit will essentially ignore the
1513 // navigation, and won't send a message to stop the throbber. To prevent this
1514 // from happening, we drop the navigation here and stop the slow-to-commit
1515 // page from loading (which would normally happen during the navigation).
1516 if (pending_entry_index_ != -1 &&
1517 pending_entry_index_ == last_committed_entry_index_ &&
1518 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231519 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511520 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211521 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]ec6c05f2013-10-23 18:41:571522 delegate_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121523
1524 // If an interstitial page is showing, we want to close it to get back
1525 // to what was showing before.
[email protected]ec6c05f2013-10-23 18:41:571526 if (delegate_->GetInterstitialPage())
1527 delegate_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121528
[email protected]83c2e232011-10-07 21:36:461529 DiscardNonCommittedEntries();
1530 return;
1531 }
1532
[email protected]6a13a6c2011-12-20 21:47:121533 // If an interstitial page is showing, the previous renderer is blocked and
1534 // cannot make new requests. Unblock (and disable) it to allow this
1535 // navigation to succeed. The interstitial will stay visible until the
1536 // resulting DidNavigate.
[email protected]ec6c05f2013-10-23 18:41:571537 if (delegate_->GetInterstitialPage()) {
1538 static_cast<InterstitialPageImpl*>(delegate_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131539 CancelForNavigation();
1540 }
[email protected]6a13a6c2011-12-20 21:47:121541
initial.commit09911bf2008-07-26 23:55:291542 // For session history navigations only the pending_entry_index_ is set.
1543 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201544 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201545 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291546 }
1547
[email protected]ec6c05f2013-10-23 18:41:571548 if (!delegate_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471549 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381550
1551 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1552 // it in now that we know. This allows us to find the entry when it commits.
1553 // This works for browser-initiated navigations. We handle renderer-initiated
[email protected]2db9bd72012-04-13 20:20:561554 // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset.
[email protected]77362eb2011-08-01 17:18:381555 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231556 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331557 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]ec6c05f2013-10-23 18:41:571558 delegate_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231559 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381560 }
initial.commit09911bf2008-07-26 23:55:291561}
1562
[email protected]d202a7c2012-01-04 07:53:471563void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211564 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271565 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401566
[email protected]2db9bd72012-04-13 20:20:561567 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401568 // location bar will have up-to-date information about the security style
1569 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131570 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401571
[email protected]ec6c05f2013-10-23 18:41:571572 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
1573 delegate_->NotifyNavigationEntryCommitted(*details);
[email protected]cbb1ef592013-06-05 19:49:461574
[email protected]b0f724c2013-09-05 04:21:131575 // TODO(avi): Remove. http://crbug.com/170921
1576 NotificationDetails notification_details =
1577 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211578 NotificationService::current()->Notify(
1579 NOTIFICATION_NAV_ENTRY_COMMITTED,
1580 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401581 notification_details);
initial.commit09911bf2008-07-26 23:55:291582}
1583
initial.commit09911bf2008-07-26 23:55:291584// static
[email protected]d202a7c2012-01-04 07:53:471585size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231586 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1587 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211588 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231589}
1590
[email protected]d202a7c2012-01-04 07:53:471591void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221592 if (is_active && needs_reload_)
1593 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291594}
1595
[email protected]d202a7c2012-01-04 07:53:471596void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291597 if (!needs_reload_)
1598 return;
1599
initial.commit09911bf2008-07-26 23:55:291600 // Calling Reload() results in ignoring state, and not loading.
1601 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1602 // cached state.
1603 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161604 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291605}
1606
[email protected]d202a7c2012-01-04 07:53:471607void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1608 int index) {
[email protected]8ff00d72012-10-23 19:12:211609 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091610 det.changed_entry = entry;
1611 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211612 NotificationService::current()->Notify(
1613 NOTIFICATION_NAV_ENTRY_CHANGED,
1614 Source<NavigationController>(this),
1615 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291616}
1617
[email protected]d202a7c2012-01-04 07:53:471618void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361619 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551620 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361621 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291622
[email protected]71fde352011-12-29 03:29:561623 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291624
1625 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291626}
[email protected]765b35502008-08-21 00:51:201627
[email protected]d202a7c2012-01-04 07:53:471628void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]b12eb222013-09-10 00:11:481629 DiscardPendingEntry();
1630 DiscardTransientEntry();
1631}
1632
1633void NavigationControllerImpl::DiscardPendingEntry() {
[email protected]765b35502008-08-21 00:51:201634 if (pending_entry_index_ == -1)
1635 delete pending_entry_;
1636 pending_entry_ = NULL;
1637 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471638}
1639
[email protected]d202a7c2012-01-04 07:53:471640void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471641 if (transient_entry_index_ == -1)
1642 return;
[email protected]a0e69262009-06-03 19:08:481643 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181644 if (last_committed_entry_index_ > transient_entry_index_)
1645 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471646 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201647}
1648
[email protected]d202a7c2012-01-04 07:53:471649int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111650 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201651 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111652 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511653 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201654 return i;
1655 }
1656 return -1;
1657}
[email protected]cbab76d2008-10-13 22:42:471658
[email protected]d202a7c2012-01-04 07:53:471659NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471660 if (transient_entry_index_ == -1)
1661 return NULL;
1662 return entries_[transient_entry_index_].get();
1663}
[email protected]e1cd5452010-08-26 18:03:251664
[email protected]0b684262013-02-20 02:18:211665void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1666 // Discard any current transient entry, we can only have one at a time.
1667 int index = 0;
1668 if (last_committed_entry_index_ != -1)
1669 index = last_committed_entry_index_ + 1;
1670 DiscardTransientEntry();
1671 entries_.insert(
1672 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1673 NavigationEntryImpl::FromNavigationEntry(entry)));
1674 transient_entry_index_ = index;
[email protected]ec6c05f2013-10-23 18:41:571675 delegate_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]0b684262013-02-20 02:18:211676}
1677
[email protected]d202a7c2012-01-04 07:53:471678void NavigationControllerImpl::InsertEntriesFrom(
1679 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251680 int max_index) {
[email protected]a26023822011-12-29 00:23:551681 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251682 size_t insert_index = 0;
1683 for (int i = 0; i < max_index; i++) {
1684 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041685 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211686 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251687 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231688 linked_ptr<NavigationEntryImpl>(
1689 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251690 }
1691 }
1692}
[email protected]c5b88d82012-10-06 17:03:331693
1694void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1695 const base::Callback<base::Time()>& get_timestamp_callback) {
1696 get_timestamp_callback_ = get_timestamp_callback;
1697}
[email protected]8ff00d72012-10-23 19:12:211698
1699} // namespace content