blob: 54c34e9ac5c1f7f5f2a2f6500820b16b9bdf870a [file] [log] [blame]
[email protected]91854cd2012-01-10 19:43:571// Copyright (c) 2012 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
[email protected]f9e4dae2012-04-10 21:26:375#include "content/browser/web_contents/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
initial.commit09911bf2008-07-26 23:55:298#include "base/logging.h"
[email protected]b69934e2011-10-29 02:51:529#include "base/string_number_conversions.h" // Temporary
initial.commit09911bf2008-07-26 23:55:2910#include "base/string_util.h"
[email protected]b689fce72009-03-17 22:45:3411#include "base/time.h"
[email protected]252cad62010-08-18 18:33:5712#include "base/utf_string_conversions.h"
[email protected]825b1662012-03-12 19:07:3113#include "content/browser/browser_url_handler_impl.h"
[email protected]b9535422012-02-09 01:47:5914#include "content/browser/child_process_security_policy_impl.h"
[email protected]1ea3c792012-04-17 01:25:0415#include "content/browser/dom_storage/dom_storage_context_impl.h"
16#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]b3c41c0b2012-03-06 15:48:3217#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3318#include "content/browser/site_instance_impl.h"
[email protected]f9e4dae2012-04-10 21:26:3719#include "content/browser/web_contents/debug_urls.h"
20#include "content/browser/web_contents/interstitial_page_impl.h"
21#include "content/browser/web_contents/navigation_entry_impl.h"
[email protected]93ddb3c2012-04-11 21:44:2922#include "content/browser/web_contents/web_contents_impl.h"
[email protected]1a3f5312013-04-26 21:00:1023#include "content/browser/web_contents/web_contents_screenshot_manager.h"
[email protected]0aed2f52011-03-23 18:06:3624#include "content/common/view_messages.h"
[email protected]ccb797302011-12-15 16:55:1125#include "content/public/browser/browser_context.h"
[email protected]d1198fd2012-08-13 22:50:1926#include "content/public/browser/content_browser_client.h"
[email protected]d9083482012-01-06 00:38:4627#include "content/public/browser/invalidate_type.h"
[email protected]5b96836f2011-12-22 07:39:0028#include "content/public/browser/navigation_details.h"
[email protected]7f6f44c2011-12-14 13:23:3829#include "content/public/browser/notification_service.h"
[email protected]0d6e9bd2011-10-18 04:29:1630#include "content/public/browser/notification_types.h"
[email protected]9677a3c2012-12-22 04:18:5831#include "content/public/browser/render_widget_host.h"
32#include "content/public/browser/render_widget_host_view.h"
[email protected]4c3a23582012-08-18 08:54:3433#include "content/public/browser/storage_partition.h"
[email protected]7f6f44c2011-12-14 13:23:3834#include "content/public/browser/user_metrics.h"
[email protected]674bc592011-12-20 23:00:4235#include "content/public/browser/web_contents_delegate.h"
[email protected]d1198fd2012-08-13 22:50:1936#include "content/public/common/content_client.h"
[email protected]7f6f44c2011-12-14 13:23:3837#include "content/public/common/content_constants.h"
[email protected]d1ef81d2012-07-24 11:39:3638#include "content/public/common/url_constants.h"
[email protected]a23de8572009-06-03 02:16:3239#include "net/base/escape.h"
[email protected]31682282010-01-15 18:05:1640#include "net/base/mime_util.h"
[email protected]7f070d42011-03-09 20:25:3241#include "net/base/net_util.h"
[email protected]9677a3c2012-12-22 04:18:5842#include "skia/ext/platform_canvas.h"
initial.commit09911bf2008-07-26 23:55:2943
[email protected]8ff00d72012-10-23 19:12:2144namespace content {
[email protected]e9ba4472008-09-14 15:42:4345namespace {
46
[email protected]93f230e02011-06-01 14:40:0047const int kInvalidateAll = 0xFFFFFFFF;
[email protected]8030f012009-09-25 18:09:3748
[email protected]e9ba4472008-09-14 15:42:4349// Invoked when entries have been pruned, or removed. For example, if the
50// current entries are [google, digg, yahoo], with the current entry google,
51// and the user types in cnet, then digg and yahoo are pruned.
[email protected]d202a7c2012-01-04 07:53:4752void NotifyPrunedEntries(NavigationControllerImpl* nav_controller,
[email protected]c12bf1a12008-09-17 16:28:4953 bool from_front,
54 int count) {
[email protected]8ff00d72012-10-23 19:12:2155 PrunedDetails details;
[email protected]c12bf1a12008-09-17 16:28:4956 details.from_front = from_front;
57 details.count = count;
[email protected]8ff00d72012-10-23 19:12:2158 NotificationService::current()->Notify(
59 NOTIFICATION_NAV_LIST_PRUNED,
60 Source<NavigationController>(nav_controller),
61 Details<PrunedDetails>(&details));
[email protected]e9ba4472008-09-14 15:42:4362}
63
64// Ensure the given NavigationEntry has a valid state, so that WebKit does not
65// get confused if we navigate back to it.
[email protected]40bcc302009-03-02 20:50:3966//
[email protected]e9ba4472008-09-14 15:42:4367// An empty state is treated as a new navigation by WebKit, which would mean
68// losing the navigation entries and generating a new navigation entry after
69// this one. We don't want that. To avoid this we create a valid state which
70// WebKit will not treat as a new navigation.
[email protected]691aa2f2013-05-28 22:52:0471void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
72 if (!entry->GetPageState().IsValid())
73 entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
[email protected]e9ba4472008-09-14 15:42:4374}
75
[email protected]2ca1ea662012-10-04 02:26:3676NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
77 NavigationController::RestoreType type) {
78 switch (type) {
79 case NavigationController::RESTORE_CURRENT_SESSION:
80 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
81 case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
82 return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
83 case NavigationController::RESTORE_LAST_SESSION_CRASHED:
84 return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
85 }
86 NOTREACHED();
87 return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
88}
89
[email protected]e9ba4472008-09-14 15:42:4390// Configure all the NavigationEntries in entries for restore. This resets
91// the transition type to reload and makes sure the content state isn't empty.
92void ConfigureEntriesForRestore(
[email protected]10f417c52011-12-28 21:04:2393 std::vector<linked_ptr<NavigationEntryImpl> >* entries,
[email protected]2ca1ea662012-10-04 02:26:3694 NavigationController::RestoreType type) {
[email protected]e9ba4472008-09-14 15:42:4395 for (size_t i = 0; i < entries->size(); ++i) {
96 // Use a transition type of reload so that we don't incorrectly increase
97 // the typed count.
[email protected]8ff00d72012-10-23 19:12:2198 (*entries)[i]->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]2ca1ea662012-10-04 02:26:3699 (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
[email protected]e9ba4472008-09-14 15:42:43100 // NOTE(darin): This code is only needed for backwards compat.
[email protected]691aa2f2013-05-28 22:52:04101 SetPageStateIfEmpty((*entries)[i].get());
[email protected]e9ba4472008-09-14 15:42:43102 }
103}
104
105// See NavigationController::IsURLInPageNavigation for how this works and why.
[email protected]ce760d742012-08-30 22:31:10106bool AreURLsInPageNavigation(const GURL& existing_url,
107 const GURL& new_url,
108 bool renderer_says_in_page) {
109 if (existing_url == new_url)
110 return renderer_says_in_page;
111
112 if (!new_url.has_ref()) {
[email protected]192d8c5e2010-02-23 07:26:32113 // TODO(jcampan): what about when navigating back from a ref URL to the top
114 // non ref URL? Nothing is loaded in that case but we return false here.
115 // The user could also navigate from the ref URL to the non ref URL by
116 // entering the non ref URL in the location bar or through a bookmark, in
117 // which case there would be a load. I am not sure if the non-load/load
118 // scenarios can be differentiated with the TransitionType.
[email protected]e9ba4472008-09-14 15:42:43119 return false;
[email protected]192d8c5e2010-02-23 07:26:32120 }
[email protected]e9ba4472008-09-14 15:42:43121
122 url_canon::Replacements<char> replacements;
123 replacements.ClearRef();
124 return existing_url.ReplaceComponents(replacements) ==
125 new_url.ReplaceComponents(replacements);
126}
127
[email protected]bf70edce2012-06-20 22:32:22128// Determines whether or not we should be carrying over a user agent override
129// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21130bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22131 return last_entry && last_entry->GetIsOverridingUserAgent();
132}
133
[email protected]e9ba4472008-09-14 15:42:43134} // namespace
135
[email protected]d202a7c2012-01-04 07:53:47136// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29137
[email protected]9b51970d2011-12-09 23:10:23138const size_t kMaxEntryCountForTestingNotSet = -1;
139
[email protected]765b35502008-08-21 00:51:20140// static
[email protected]d202a7c2012-01-04 07:53:47141size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23142 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20143
[email protected]e6fec472013-05-14 05:29:02144// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20145// when testing.
146static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29147
[email protected]71fde352011-12-29 03:29:56148// static
[email protected]cdcb1dee2012-01-04 00:46:20149NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56150 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20151 const Referrer& referrer,
152 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56153 bool is_renderer_initiated,
154 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20155 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56156 // Allow the browser URL handler to rewrite the URL. This will, for example,
157 // remove "view-source:" from the beginning of the URL to get the URL that
158 // will actually be loaded. This real URL won't be shown to the user, just
159 // used internally.
160 GURL loaded_url(url);
161 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31162 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56163 &loaded_url, browser_context, &reverse_on_redirect);
164
165 NavigationEntryImpl* entry = new NavigationEntryImpl(
166 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56167 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56168 -1,
169 loaded_url,
170 referrer,
171 string16(),
172 transition,
173 is_renderer_initiated);
174 entry->SetVirtualURL(url);
175 entry->set_user_typed_url(url);
176 entry->set_update_virtual_url_with_url(reverse_on_redirect);
177 entry->set_extra_headers(extra_headers);
178 return entry;
179}
180
[email protected]cdcb1dee2012-01-04 00:46:20181// static
182void NavigationController::DisablePromptOnRepost() {
183 g_check_for_repost = false;
184}
185
[email protected]c5b88d82012-10-06 17:03:33186base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
187 base::Time t) {
188 // If |t| is between the water marks, we're in a run of duplicates
189 // or just getting out of it, so increase the high-water mark to get
190 // a time that probably hasn't been used before and return it.
191 if (low_water_mark_ <= t && t <= high_water_mark_) {
192 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
193 return high_water_mark_;
194 }
195
196 // Otherwise, we're clear of the last duplicate run, so reset the
197 // water marks.
198 low_water_mark_ = high_water_mark_ = t;
199 return t;
200}
201
[email protected]d202a7c2012-01-04 07:53:47202NavigationControllerImpl::NavigationControllerImpl(
[email protected]2db9bd72012-04-13 20:20:56203 WebContentsImpl* web_contents,
[email protected]d1198fd2012-08-13 22:50:19204 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37205 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20206 pending_entry_(NULL),
207 last_committed_entry_index_(-1),
208 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47209 transient_entry_index_(-1),
[email protected]2db9bd72012-04-13 20:20:56210 web_contents_(web_contents),
initial.commit09911bf2008-07-26 23:55:29211 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22212 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57213 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09214 is_initial_navigation_(true),
[email protected]c5b88d82012-10-06 17:03:33215 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31216 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]69e797f2013-04-30 01:10:22217 screenshot_manager_(new WebContentsScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37218 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29219}
220
[email protected]d202a7c2012-01-04 07:53:47221NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47222 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29223}
224
[email protected]d202a7c2012-01-04 07:53:47225WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]2db9bd72012-04-13 20:20:56226 return web_contents_;
[email protected]fbc5e5f92012-01-02 06:08:32227}
228
[email protected]d202a7c2012-01-04 07:53:47229BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55230 return browser_context_;
231}
232
[email protected]d202a7c2012-01-04 07:53:47233void NavigationControllerImpl::SetBrowserContext(
234 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20235 browser_context_ = browser_context;
236}
237
[email protected]d202a7c2012-01-04 07:53:47238void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30239 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36240 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23241 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57242 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55243 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57244 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14245 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57246
[email protected]ce3fa3c2009-04-20 19:55:57247 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04248 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23249 NavigationEntryImpl* entry =
250 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
251 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04252 }
[email protected]03838e22011-06-06 15:27:14253 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57254
255 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36256 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57257}
258
[email protected]d202a7c2012-01-04 07:53:47259void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16260 ReloadInternal(check_for_repost, RELOAD);
261}
[email protected]d202a7c2012-01-04 07:53:47262void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16263 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
264}
[email protected]7c16976c2012-08-04 02:38:23265void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
266 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
267}
[email protected]1ccb3568d2010-02-19 10:51:16268
[email protected]d202a7c2012-01-04 07:53:47269void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
270 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36271 if (transient_entry_index_ != -1) {
272 // If an interstitial is showing, treat a reload as a navigation to the
273 // transient entry's URL.
[email protected]8ff00d72012-10-23 19:12:21274 NavigationEntryImpl* active_entry =
[email protected]669e0ba2012-08-30 23:57:36275 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
276 if (!active_entry)
277 return;
278 LoadURL(active_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21279 Referrer(),
280 PAGE_TRANSITION_RELOAD,
[email protected]669e0ba2012-08-30 23:57:36281 active_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47282 return;
[email protected]669e0ba2012-08-30 23:57:36283 }
[email protected]cbab76d2008-10-13 22:42:47284
[email protected]59167c22013-06-03 18:07:32285 NavigationEntryImpl* entry = NULL;
286 int current_index = -1;
287
288 // If we are reloading the initial navigation, just use the current
289 // pending entry. Otherwise look up the current entry.
290 if (IsInitialNavigation() && pending_entry_) {
291 entry = pending_entry_;
292 // The pending entry might be in entries_ (e.g., after a Clone), so we
293 // should also update the current_index.
294 current_index = pending_entry_index_;
295 } else {
296 DiscardNonCommittedEntriesInternal();
297 current_index = GetCurrentEntryIndex();
298 if (current_index != -1) {
299 entry = NavigationEntryImpl::FromNavigationEntry(
300 GetEntryAtIndex(current_index));
301 }
[email protected]979a4bc2013-04-24 01:27:15302 }
[email protected]241db352013-04-22 18:04:05303
[email protected]59167c22013-06-03 18:07:32304 // If we are no where, then we can't reload. TODO(darin): We should add a
305 // CanReload method.
306 if (!entry)
307 return;
308
[email protected]cdcb1dee2012-01-04 00:46:20309 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32310 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30311 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07312 // they really want to do this. If they do, the dialog will call us back
313 // with check_for_repost = false.
[email protected]17e286e2013-03-01 23:29:39314 web_contents_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02315
[email protected]106a0812010-03-18 00:15:12316 pending_reload_ = reload_type;
[email protected]2db9bd72012-04-13 20:20:56317 web_contents_->Activate();
318 web_contents_->GetDelegate()->ShowRepostFormWarningDialog(web_contents_);
initial.commit09911bf2008-07-26 23:55:29319 } else {
[email protected]59167c22013-06-03 18:07:32320 if (!IsInitialNavigation())
321 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26322
[email protected]bcd904482012-02-01 01:54:22323 // If we are reloading an entry that no longer belongs to the current
324 // site instance (for example, refreshing a page for just installed app),
325 // the reload must happen in a new process.
326 // The new entry must have a new page_id and site instance, so it behaves
327 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30328 // Tabs that are discarded due to low memory conditions may not have a site
329 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32330 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]7e58cb272012-03-30 21:22:30331 if (site_instance &&
332 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22333 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22334 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22335 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
336 CreateNavigationEntry(
337 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
338 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26339
[email protected]11535962012-02-09 21:02:10340 // Mark the reload type as NO_RELOAD, so navigation will not be considered
341 // a reload in the renderer.
342 reload_type = NavigationController::NO_RELOAD;
343
[email protected]e2caa032012-11-15 23:29:18344 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22345 pending_entry_ = nav_entry;
346 } else {
[email protected]59167c22013-06-03 18:07:32347 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22348 pending_entry_index_ = current_index;
349
350 // The title of the page being reloaded might have been removed in the
351 // meanwhile, so we need to revert to the default title upon reload and
352 // invalidate the previously cached title (SetTitle will do both).
353 // See Chromium issue 96041.
[email protected]59167c22013-06-03 18:07:32354 pending_entry_->SetTitle(string16());
[email protected]bcd904482012-02-01 01:54:22355
[email protected]59167c22013-06-03 18:07:32356 pending_entry_->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22357 }
358
[email protected]1ccb3568d2010-02-19 10:51:16359 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29360 }
361}
362
[email protected]d202a7c2012-01-04 07:53:47363void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12364 DCHECK(pending_reload_ != NO_RELOAD);
365 pending_reload_ = NO_RELOAD;
366}
367
[email protected]d202a7c2012-01-04 07:53:47368void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12369 if (pending_reload_ == NO_RELOAD) {
370 NOTREACHED();
371 } else {
372 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02373 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12374 }
375}
376
[email protected]cd2e15742013-03-08 04:08:31377bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09378 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11379}
380
[email protected]d202a7c2012-01-04 07:53:47381NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33382 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11383 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20384 return (index != -1) ? entries_[index].get() : NULL;
385}
386
[email protected]d202a7c2012-01-04 07:53:47387void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]419a0572011-04-18 22:21:46388 // Don't navigate to URLs disabled by policy. This prevents showing the URL
389 // on the Omnibar when it is also going to be blocked by
390 // ChildProcessSecurityPolicy::CanRequestURL.
[email protected]b9535422012-02-09 01:47:59391 ChildProcessSecurityPolicyImpl* policy =
392 ChildProcessSecurityPolicyImpl::GetInstance();
[email protected]36fc0392011-12-25 03:59:51393 if (policy->IsDisabledScheme(entry->GetURL().scheme()) ||
394 policy->IsDisabledScheme(entry->GetVirtualURL().scheme())) {
[email protected]419a0572011-04-18 22:21:46395 VLOG(1) << "URL not loaded because the scheme is blocked by policy: "
[email protected]36fc0392011-12-25 03:59:51396 << entry->GetURL();
[email protected]419a0572011-04-18 22:21:46397 delete entry;
398 return;
399 }
400
[email protected]765b35502008-08-21 00:51:20401 // When navigating to a new page, we don't know for sure if we will actually
402 // end up leaving the current page. The new page load could for example
403 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]59167c22013-06-03 18:07:32404 SetPendingEntry(entry);
405 NavigateToPendingEntry(NO_RELOAD);
406}
407
408void NavigationControllerImpl::SetPendingEntry(NavigationEntryImpl* entry) {
[email protected]cbab76d2008-10-13 22:42:47409 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20410 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21411 NotificationService::current()->Notify(
412 NOTIFICATION_NAV_ENTRY_PENDING,
413 Source<NavigationController>(this),
414 Details<NavigationEntry>(entry));
[email protected]765b35502008-08-21 00:51:20415}
416
[email protected]d202a7c2012-01-04 07:53:47417NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47418 if (transient_entry_index_ != -1)
419 return entries_[transient_entry_index_].get();
420 if (pending_entry_)
421 return pending_entry_;
422 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20423}
424
[email protected]d202a7c2012-01-04 07:53:47425NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19426 if (transient_entry_index_ != -1)
427 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32428 // The pending entry is safe to return for new (non-history), browser-
429 // initiated navigations. Most renderer-initiated navigations should not
430 // show the pending entry, to prevent URL spoof attacks.
431 //
432 // We make an exception for renderer-initiated navigations in new tabs, as
433 // long as no other page has tried to access the initial empty document in
434 // the new tab. If another page modifies this blank page, a URL spoof is
435 // possible, so we must stop showing the pending entry.
436 RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
437 web_contents_->GetRenderViewHost());
438 bool safe_to_show_pending =
439 pending_entry_ &&
440 // Require a new navigation.
[email protected]36fc0392011-12-25 03:59:51441 pending_entry_->GetPageID() == -1 &&
[email protected]59167c22013-06-03 18:07:32442 // Require either browser-initiated or an unmodified new tab.
443 (!pending_entry_->is_renderer_initiated() ||
444 (IsInitialNavigation() &&
445 !GetLastCommittedEntry() &&
446 !rvh->has_accessed_initial_document()));
447
448 // Also allow showing the pending entry for history navigations in a new tab,
449 // such as Ctrl+Back. In this case, no existing page is visible and no one
450 // can script the new tab before it commits.
451 if (!safe_to_show_pending &&
452 pending_entry_ &&
453 pending_entry_->GetPageID() != -1 &&
454 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34455 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32456 safe_to_show_pending = true;
457
458 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19459 return pending_entry_;
460 return GetLastCommittedEntry();
461}
462
[email protected]d202a7c2012-01-04 07:53:47463int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47464 if (transient_entry_index_ != -1)
465 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20466 if (pending_entry_index_ != -1)
467 return pending_entry_index_;
468 return last_committed_entry_index_;
469}
470
[email protected]d202a7c2012-01-04 07:53:47471NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20472 if (last_committed_entry_index_ == -1)
473 return NULL;
474 return entries_[last_committed_entry_index_].get();
475}
476
[email protected]d202a7c2012-01-04 07:53:47477bool NavigationControllerImpl::CanViewSource() const {
[email protected]9d86c4982013-01-09 00:38:34478 const std::string& mime_type = web_contents_->GetContentsMimeType();
479 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
480 !net::IsSupportedMediaMimeType(mime_type);
[email protected]10f417c52011-12-28 21:04:23481 NavigationEntry* active_entry = GetActiveEntry();
[email protected]31682282010-01-15 18:05:16482 return active_entry && !active_entry->IsViewSourceMode() &&
[email protected]9d86c4982013-01-09 00:38:34483 is_viewable_mime_type && !web_contents_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16484}
485
[email protected]d202a7c2012-01-04 07:53:47486int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55487 return last_committed_entry_index_;
488}
489
[email protected]d202a7c2012-01-04 07:53:47490int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25491 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55492 return static_cast<int>(entries_.size());
493}
494
[email protected]d202a7c2012-01-04 07:53:47495NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25496 int index) const {
497 return entries_.at(index).get();
498}
499
[email protected]d202a7c2012-01-04 07:53:47500NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25501 int offset) const {
[email protected]9ba14052012-06-22 23:50:03502 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55503 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20504 return NULL;
505
506 return entries_[index].get();
507}
508
[email protected]9ba14052012-06-22 23:50:03509int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46510 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03511}
512
[email protected]9677a3c2012-12-22 04:18:58513void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10514 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58515}
516
[email protected]1a3f5312013-04-26 21:00:10517void NavigationControllerImpl::SetScreenshotManager(
518 WebContentsScreenshotManager* manager) {
519 screenshot_manager_.reset(manager ? manager :
520 new WebContentsScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58521}
522
[email protected]d202a7c2012-01-04 07:53:47523bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20524 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
525}
526
[email protected]d202a7c2012-01-04 07:53:47527bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20528 int index = GetCurrentEntryIndex();
529 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
530}
531
[email protected]9ba14052012-06-22 23:50:03532bool NavigationControllerImpl::CanGoToOffset(int offset) const {
533 int index = GetIndexForOffset(offset);
534 return index >= 0 && index < GetEntryCount();
535}
536
[email protected]d202a7c2012-01-04 07:53:47537void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20538 if (!CanGoBack()) {
539 NOTREACHED();
540 return;
541 }
542
543 // Base the navigation on where we are now...
544 int current_index = GetCurrentEntryIndex();
545
[email protected]cbab76d2008-10-13 22:42:47546 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20547
548 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25549 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21550 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51551 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21552 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16553 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20554}
555
[email protected]d202a7c2012-01-04 07:53:47556void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20557 if (!CanGoForward()) {
558 NOTREACHED();
559 return;
560 }
561
[email protected]cbab76d2008-10-13 22:42:47562 bool transient = (transient_entry_index_ != -1);
563
[email protected]765b35502008-08-21 00:51:20564 // Base the navigation on where we are now...
565 int current_index = GetCurrentEntryIndex();
566
[email protected]cbab76d2008-10-13 22:42:47567 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20568
[email protected]cbab76d2008-10-13 22:42:47569 pending_entry_index_ = current_index;
570 // If there was a transient entry, we removed it making the current index
571 // the next page.
572 if (!transient)
573 pending_entry_index_++;
574
[email protected]022af742011-12-28 18:37:25575 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21576 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51577 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21578 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16579 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20580}
581
[email protected]d202a7c2012-01-04 07:53:47582void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20583 if (index < 0 || index >= static_cast<int>(entries_.size())) {
584 NOTREACHED();
585 return;
586 }
587
[email protected]cbab76d2008-10-13 22:42:47588 if (transient_entry_index_ != -1) {
589 if (index == transient_entry_index_) {
590 // Nothing to do when navigating to the transient.
591 return;
592 }
593 if (index > transient_entry_index_) {
594 // Removing the transient is goint to shift all entries by 1.
595 index--;
596 }
597 }
598
599 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20600
601 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25602 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21603 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51604 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21605 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16606 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20607}
608
[email protected]d202a7c2012-01-04 07:53:47609void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03610 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20611 return;
612
[email protected]9ba14052012-06-22 23:50:03613 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20614}
615
[email protected]d202a7c2012-01-04 07:53:47616void NavigationControllerImpl::RemoveEntryAtIndex(int index) {
[email protected]6a13a6c2011-12-20 21:47:12617 if (index == last_committed_entry_index_)
618 return;
619
[email protected]43032342011-03-21 14:10:31620 RemoveEntryAtIndexInternal(index);
[email protected]cbab76d2008-10-13 22:42:47621}
622
[email protected]d202a7c2012-01-04 07:53:47623void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23624 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32625 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31626 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51627 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
628 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32629 }
630}
631
[email protected]d202a7c2012-01-04 07:53:47632void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47633 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21634 const Referrer& referrer,
635 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47636 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47637 LoadURLParams params(url);
638 params.referrer = referrer;
639 params.transition_type = transition;
640 params.extra_headers = extra_headers;
641 LoadURLWithParams(params);
642}
643
644void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]8ff00d72012-10-23 19:12:21645 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18646 return;
647
[email protected]cf002332012-08-14 19:17:47648 // Checks based on params.load_type.
649 switch (params.load_type) {
650 case LOAD_TYPE_DEFAULT:
651 break;
652 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
653 if (!params.url.SchemeIs(chrome::kHttpScheme) &&
654 !params.url.SchemeIs(chrome::kHttpsScheme)) {
655 NOTREACHED() << "Http post load must use http(s) scheme.";
656 return;
657 }
658 break;
659 case LOAD_TYPE_DATA:
660 if (!params.url.SchemeIs(chrome::kDataScheme)) {
661 NOTREACHED() << "Data load must use data scheme.";
662 return;
663 }
664 break;
665 default:
666 NOTREACHED();
667 break;
668 };
[email protected]e47ae9472011-10-13 19:48:34669
[email protected]e47ae9472011-10-13 19:48:34670 // The user initiated a load, we don't need to reload anymore.
671 needs_reload_ = false;
672
[email protected]cf002332012-08-14 19:17:47673 bool override = false;
674 switch (params.override_user_agent) {
675 case UA_OVERRIDE_INHERIT:
676 override = ShouldKeepOverride(GetLastCommittedEntry());
677 break;
678 case UA_OVERRIDE_TRUE:
679 override = true;
680 break;
681 case UA_OVERRIDE_FALSE:
682 override = false;
683 break;
684 default:
685 NOTREACHED();
686 break;
[email protected]d1ef81d2012-07-24 11:39:36687 }
688
[email protected]d1ef81d2012-07-24 11:39:36689 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
690 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47691 params.url,
692 params.referrer,
693 params.transition_type,
694 params.is_renderer_initiated,
695 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36696 browser_context_));
[email protected]e2caa032012-11-15 23:29:18697 if (params.is_cross_site_redirect)
698 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13699 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47700 entry->SetIsOverridingUserAgent(override);
701 entry->set_transferred_global_request_id(
702 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37703 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36704
[email protected]cf002332012-08-14 19:17:47705 switch (params.load_type) {
706 case LOAD_TYPE_DEFAULT:
707 break;
708 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
709 entry->SetHasPostData(true);
710 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46711 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47712 break;
713 case LOAD_TYPE_DATA:
714 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
715 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37716 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47717 break;
718 default:
719 NOTREACHED();
720 break;
721 };
[email protected]132e281a2012-07-31 18:32:44722
723 LoadEntry(entry);
724}
725
[email protected]d202a7c2012-01-04 07:53:47726bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43727 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8ff00d72012-10-23 19:12:21728 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31729 is_initial_navigation_ = false;
730
[email protected]0e8db942008-09-24 21:21:48731 // Save the previous state before we clobber it.
732 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51733 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55734 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48735 } else {
736 details->previous_url = GURL();
737 details->previous_entry_index = -1;
738 }
[email protected]ecd9d8702008-08-28 22:10:17739
[email protected]77362eb2011-08-01 17:18:38740 // If we have a pending entry at this point, it should have a SiteInstance.
741 // Restored entries start out with a null SiteInstance, but we should have
742 // assigned one in NavigateToPendingEntry.
743 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43744
[email protected]bcd904482012-02-01 01:54:22745 // If we are doing a cross-site reload, we need to replace the existing
746 // navigation entry, not add another entry to the history. This has the side
747 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18748 // Or if we are doing a cross-site redirect navigation,
749 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59750 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18751 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22752
[email protected]192d8c5e2010-02-23 07:26:32753 // is_in_page must be computed before the entry gets committed.
[email protected]ce760d742012-08-30 22:31:10754 details->is_in_page = IsURLInPageNavigation(
755 params.url, params.was_within_same_page);
[email protected]192d8c5e2010-02-23 07:26:32756
[email protected]e9ba4472008-09-14 15:42:43757 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48758 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20759
[email protected]0e8db942008-09-24 21:21:48760 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21761 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59762 RendererDidNavigateToNewPage(params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43763 break;
[email protected]8ff00d72012-10-23 19:12:21764 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43765 RendererDidNavigateToExistingPage(params);
766 break;
[email protected]8ff00d72012-10-23 19:12:21767 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43768 RendererDidNavigateToSamePage(params);
769 break;
[email protected]8ff00d72012-10-23 19:12:21770 case NAVIGATION_TYPE_IN_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59771 RendererDidNavigateInPage(params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43772 break;
[email protected]8ff00d72012-10-23 19:12:21773 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43774 RendererDidNavigateNewSubframe(params);
775 break;
[email protected]8ff00d72012-10-23 19:12:21776 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43777 if (!RendererDidNavigateAutoSubframe(params))
778 return false;
779 break;
[email protected]8ff00d72012-10-23 19:12:21780 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49781 // If a pending navigation was in progress, this canceled it. We should
782 // discard it and make sure it is removed from the URL bar. After that,
783 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43784 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49785 if (pending_entry_) {
786 DiscardNonCommittedEntries();
[email protected]8ff00d72012-10-23 19:12:21787 web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49788 }
[email protected]e9ba4472008-09-14 15:42:43789 return false;
790 default:
791 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20792 }
793
[email protected]688aa65c62012-09-28 04:32:22794 // At this point, we know that the navigation has just completed, so
795 // record the time.
796 //
797 // TODO(akalin): Use "sane time" as described in
798 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33799 base::Time timestamp =
800 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
801 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22802 << timestamp.ToInternalValue();
803
[email protected]f233e4232013-02-23 00:55:14804 // We should not have a pending entry anymore. Clear it again in case any
805 // error cases above forgot to do so.
806 DiscardNonCommittedEntriesInternal();
807
[email protected]e9ba4472008-09-14 15:42:43808 // All committed entries should have nonempty content state so WebKit doesn't
809 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04810 DCHECK(params.page_state.IsValid());
[email protected]10f417c52011-12-28 21:04:23811 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14812 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22813 active_entry->SetTimestamp(timestamp);
[email protected]691aa2f2013-05-28 22:52:04814 active_entry->SetPageState(params.page_state);
[email protected]132e281a2012-07-31 18:32:44815 // No longer needed since content state will hold the post data if any.
816 active_entry->SetBrowserInitiatedPostData(NULL);
817
[email protected]e47ae9472011-10-13 19:48:34818 // Once committed, we do not need to track if the entry was initiated by
819 // the renderer.
820 active_entry->set_is_renderer_initiated(false);
821
[email protected]60d6cca2013-04-30 08:47:13822 // Once committed, we no longer need to track whether the session history was
823 // cleared. Navigating to this entry again shouldn't clear it again.
824 active_entry->set_should_clear_history_list(false);
825
[email protected]49bd30e62011-03-22 20:12:59826 // The active entry's SiteInstance should match our SiteInstance.
[email protected]f233e4232013-02-23 00:55:14827 CHECK(active_entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59828
[email protected]b26de072013-02-23 02:33:44829 // Remember the bindings the renderer process has at this point, so that
830 // we do not grant this entry additional bindings if we come back to it.
831 active_entry->SetBindings(
832 web_contents_->GetRenderViewHost()->GetEnabledBindings());
833
[email protected]e9ba4472008-09-14 15:42:43834 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00835 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58836 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21837 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24838 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31839 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00840 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29841
[email protected]e9ba4472008-09-14 15:42:43842 return true;
initial.commit09911bf2008-07-26 23:55:29843}
844
[email protected]8ff00d72012-10-23 19:12:21845NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43846 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43847 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46848 // The renderer generates the page IDs, and so if it gives us the invalid
849 // page ID (-1) we know it didn't actually navigate. This happens in a few
850 // cases:
851 //
852 // - If a page makes a popup navigated to about blank, and then writes
853 // stuff like a subframe navigated to a real page. We'll get the commit
854 // for the subframe, but there won't be any commit for the outer page.
855 //
856 // - We were also getting these for failed loads (for example, bug 21849).
857 // The guess is that we get a "load commit" for the alternate error page,
858 // but that doesn't affect the page ID, so we get the "old" one, which
859 // could be invalid. This can also happen for a cross-site transition
860 // that causes us to swap processes. Then the error page load will be in
861 // a new process with no page IDs ever assigned (and hence a -1 value),
862 // yet the navigation controller still might have previous pages in its
863 // list.
864 //
865 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21866 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43867 }
868
[email protected]2db9bd72012-04-13 20:20:56869 if (params.page_id > web_contents_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43870 // Greater page IDs than we've ever seen before are new pages. We may or may
871 // not have a pending entry for the page, and this may or may not be the
872 // main frame.
[email protected]8ff00d72012-10-23 19:12:21873 if (PageTransitionIsMainFrame(params.transition))
874 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09875
876 // When this is a new subframe navigation, we should have a committed page
877 // for which it's a suframe in. This may not be the case when an iframe is
878 // navigated on a popup navigated to about:blank (the iframe would be
879 // written into the popup by script on the main page). For these cases,
880 // there isn't any navigation stuff we can do, so just ignore it.
881 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21882 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09883
884 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21885 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43886 }
887
[email protected]60d6cca2013-04-30 08:47:13888 // We only clear the session history when navigating to a new page.
889 DCHECK(!params.history_list_was_cleared);
890
[email protected]e9ba4472008-09-14 15:42:43891 // Now we know that the notification is for an existing page. Find that entry.
892 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:56893 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43894 params.page_id);
895 if (existing_entry_index == -1) {
896 // The page was not found. It could have been pruned because of the limit on
897 // back/forward entries (not likely since we'll usually tell it to navigate
898 // to such entries). It could also mean that the renderer is smoking crack.
899 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46900
901 // Because the unknown entry has committed, we risk showing the wrong URL in
902 // release builds. Instead, we'll kill the renderer process to be safe.
903 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]8ff00d72012-10-23 19:12:21904 RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52905
[email protected]7ec6f382011-11-11 01:28:17906 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10907 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
908 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17909 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52910 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17911 temp.append("#max");
[email protected]2db9bd72012-04-13 20:20:56912 temp.append(base::IntToString(web_contents_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17913 temp.append("#frame");
914 temp.append(base::IntToString(params.frame_id));
915 temp.append("#ids");
916 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10917 // Append entry metadata (e.g., 3_7x):
918 // 3: page_id
919 // 7: SiteInstance ID, or N for null
920 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51921 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10922 temp.append("_");
923 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33924 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17925 else
[email protected]8c380582011-12-02 03:16:10926 temp.append("N");
[email protected]2db9bd72012-04-13 20:20:56927 if (entries_[i]->site_instance() != web_contents_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17928 temp.append("x");
929 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52930 }
931 GURL url(temp);
[email protected]9f76c1e2012-03-05 15:15:58932 static_cast<RenderViewHostImpl*>(
[email protected]2db9bd72012-04-13 20:20:56933 web_contents_->GetRenderViewHost())->Send(
[email protected]9f76c1e2012-03-05 15:15:58934 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21935 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43936 }
[email protected]10f417c52011-12-28 21:04:23937 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43938
[email protected]8ff00d72012-10-23 19:12:21939 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52940 // All manual subframes would get new IDs and were handled above, so we
941 // know this is auto. Since the current page was found in the navigation
942 // entry list, we're guaranteed to have a last committed entry.
943 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21944 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52945 }
946
947 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43948 if (pending_entry_ &&
[email protected]59167c22013-06-03 18:07:32949 !pending_entry_->is_renderer_initiated() &&
[email protected]e9ba4472008-09-14 15:42:43950 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51951 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24952 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43953 // In this case, we have a pending entry for a URL but WebCore didn't do a
954 // new navigation. This happens when you press enter in the URL bar to
955 // reload. We will create a pending entry, but WebKit will convert it to
956 // a reload since it's the same page and not create a new entry for it
957 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24958 // this). If this matches the last committed entry, we want to just ignore
959 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21960 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43961 }
962
[email protected]fc60f222008-12-18 17:36:54963 // Any toplevel navigations with the same base (minus the reference fragment)
964 // are in-page navigations. We weeded out subframe navigations above. Most of
965 // the time this doesn't matter since WebKit doesn't tell us about subframe
966 // navigations that don't actually navigate, but it can happen when there is
967 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59968 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
969 params.was_within_same_page)) {
[email protected]8ff00d72012-10-23 19:12:21970 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59971 }
[email protected]fc60f222008-12-18 17:36:54972
[email protected]e9ba4472008-09-14 15:42:43973 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09974 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21975 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43976}
977
[email protected]d202a7c2012-01-04 07:53:47978bool NavigationControllerImpl::IsRedirect(
[email protected]09b8f82f2009-06-16 20:22:11979 const ViewHostMsg_FrameNavigate_Params& params) {
980 // For main frame transition, we judge by params.transition.
981 // Otherwise, by params.redirects.
[email protected]8ff00d72012-10-23 19:12:21982 if (PageTransitionIsMainFrame(params.transition)) {
983 return PageTransitionIsRedirect(params.transition);
[email protected]09b8f82f2009-06-16 20:22:11984 }
985 return params.redirects.size() > 1;
986}
987
[email protected]d202a7c2012-01-04 07:53:47988void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]e6fec472013-05-14 05:29:02989 const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23990 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41991 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34992 // Only make a copy of the pending entry if it is appropriate for the new page
993 // that was just loaded. We verify this at a coarse grain by checking that
994 // the SiteInstance hasn't been assigned to something else.
995 if (pending_entry_ &&
996 (!pending_entry_->site_instance() ||
997 pending_entry_->site_instance() == web_contents_->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:23998 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43999
1000 // Don't use the page type from the pending entry. Some interstitial page
1001 // may have set the type to interstitial. Once we commit, however, the page
1002 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:211003 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:411004 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:431005 } else {
[email protected]10f417c52011-12-28 21:04:231006 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:241007
1008 // Find out whether the new entry needs to update its virtual URL on URL
1009 // change and set up the entry accordingly. This is needed to correctly
1010 // update the virtual URL when replaceState is called after a pushState.
1011 GURL url = params.url;
1012 bool needs_update = false;
1013 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1014 &url, browser_context_, &needs_update);
1015 new_entry->set_update_virtual_url_with_url(needs_update);
1016
[email protected]f1eb87a2011-05-06 17:49:411017 // When navigating to a new page, give the browser URL handler a chance to
1018 // update the virtual URL based on the new URL. For example, this is needed
1019 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1020 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241021 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431022 }
1023
[email protected]ad23a092011-12-28 07:02:041024 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411025 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:321026 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:251027 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511028 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251029 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331030 new_entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:561031 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511032 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051033 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231034 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221035 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431036
[email protected]60d6cca2013-04-30 08:47:131037 DCHECK(!params.history_list_was_cleared || !replace_entry);
1038 // The browser requested to clear the session history when it initiated the
1039 // navigation. Now we know that the renderer has updated its state accordingly
1040 // and it is safe to also clear the browser side history.
1041 if (params.history_list_was_cleared) {
1042 DiscardNonCommittedEntriesInternal();
1043 entries_.clear();
1044 last_committed_entry_index_ = -1;
1045 }
1046
[email protected]4ac5fbe2012-09-01 02:19:591047 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:431048}
1049
[email protected]d202a7c2012-01-04 07:53:471050void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:431051 const ViewHostMsg_FrameNavigate_Params& params) {
1052 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:211053 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:431054
1055 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091056 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1057 // with new information from the renderer.
[email protected]2db9bd72012-04-13 20:20:561058 int entry_index = GetEntryIndexWithPageID(web_contents_->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111059 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431060 DCHECK(entry_index >= 0 &&
1061 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231062 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431063
[email protected]5ccd4dc2012-10-24 02:28:141064 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041065 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:321066 if (entry->update_virtual_url_with_url())
1067 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141068
1069 // The redirected to page should not inherit the favicon from the previous
1070 // page.
1071 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481072 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141073
1074 // The site instance will normally be the same except during session restore,
1075 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431076 DCHECK(entry->site_instance() == NULL ||
[email protected]2db9bd72012-04-13 20:20:561077 entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331078 entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:561079 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431080
[email protected]36fc0392011-12-25 03:59:511081 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051082 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411083
[email protected]e9ba4472008-09-14 15:42:431084 // The entry we found in the list might be pending if the user hit
1085 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591086 // list, we can just discard the pending pointer). We should also discard the
1087 // pending entry if it corresponds to a different navigation, since that one
1088 // is now likely canceled. If it is not canceled, we will treat it as a new
1089 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431090 //
1091 // Note that we need to use the "internal" version since we don't want to
1092 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491093 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391094
[email protected]80858db52009-10-15 00:35:181095 // If a transient entry was removed, the indices might have changed, so we
1096 // have to query the entry index again.
1097 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561098 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431099}
1100
[email protected]d202a7c2012-01-04 07:53:471101void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:431102 const ViewHostMsg_FrameNavigate_Params& params) {
1103 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091104 // entry for this page ID. This entry is guaranteed to exist by
1105 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231106 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561107 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431108
1109 // We assign the entry's unique ID to be that of the new one. Since this is
1110 // always the result of a user action, we want to dismiss infobars, etc. like
1111 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511112 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431113
[email protected]a0e69262009-06-03 19:08:481114 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321115 if (existing_entry->update_virtual_url_with_url())
1116 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041117 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481118
[email protected]cbab76d2008-10-13 22:42:471119 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431120}
1121
[email protected]d202a7c2012-01-04 07:53:471122void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:471123 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211124 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431125 "WebKit should only tell us about in-page navs for the main frame.";
1126 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231127 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561128 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431129
1130 // Reference fragment navigation. We're guaranteed to have the last_committed
1131 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031132 // reference fragments, of course). We'll update the URL of the existing
1133 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041134 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031135 if (existing_entry->update_virtual_url_with_url())
1136 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431137
1138 // This replaces the existing entry since the page ID didn't change.
1139 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031140
[email protected]6eebaab2012-11-15 04:39:491141 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031142
1143 // If a transient entry was removed, the indices might have changed, so we
1144 // have to query the entry index again.
1145 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561146 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431147}
1148
[email protected]d202a7c2012-01-04 07:53:471149void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:431150 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]8ff00d72012-10-23 19:12:211151 if (PageTransitionStripQualifier(params.transition) ==
1152 PAGE_TRANSITION_AUTO_SUBFRAME) {
[email protected]09b8f82f2009-06-16 20:22:111153 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141154 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111155 return;
1156 }
[email protected]09b8f82f2009-06-16 20:22:111157
[email protected]e9ba4472008-09-14 15:42:431158 // Manual subframe navigations just get the current entry cloned so the user
1159 // can go back or forward to it. The actual subframe information will be
1160 // stored in the page state for each of those entries. This happens out of
1161 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091162 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1163 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231164 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1165 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511166 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451167 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431168}
1169
[email protected]d202a7c2012-01-04 07:53:471170bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:431171 const ViewHostMsg_FrameNavigate_Params& params) {
1172 // We're guaranteed to have a previously committed entry, and we now need to
1173 // handle navigation inside of a subframe in it without creating a new entry.
1174 DCHECK(GetLastCommittedEntry());
1175
1176 // Handle the case where we're navigating back/forward to a previous subframe
1177 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1178 // header file. In case "1." this will be a NOP.
1179 int entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:561180 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431181 params.page_id);
1182 if (entry_index < 0 ||
1183 entry_index >= static_cast<int>(entries_.size())) {
1184 NOTREACHED();
1185 return false;
1186 }
1187
1188 // Update the current navigation entry in case we're going back/forward.
1189 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431190 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141191 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431192 return true;
1193 }
[email protected]f233e4232013-02-23 00:55:141194
1195 // We do not need to discard the pending entry in this case, since we will
1196 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431197 return false;
1198}
1199
[email protected]d202a7c2012-01-04 07:53:471200int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231201 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201202 const NavigationEntries::const_iterator i(std::find(
1203 entries_.begin(),
1204 entries_.end(),
1205 entry));
1206 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1207}
1208
[email protected]ce760d742012-08-30 22:31:101209bool NavigationControllerImpl::IsURLInPageNavigation(
1210 const GURL& url, bool renderer_says_in_page) const {
[email protected]10f417c52011-12-28 21:04:231211 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101212 return last_committed && AreURLsInPageNavigation(
1213 last_committed->GetURL(), url, renderer_says_in_page);
[email protected]e9ba4472008-09-14 15:42:431214}
1215
[email protected]d202a7c2012-01-04 07:53:471216void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501217 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471218 const NavigationControllerImpl& source =
1219 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571220 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551221 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571222
[email protected]a26023822011-12-29 00:23:551223 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571224 return; // Nothing new to do.
1225
1226 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551227 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571228
[email protected]d1198fd2012-08-13 22:50:191229 for (SessionStorageNamespaceMap::const_iterator it =
1230 source.session_storage_namespace_map_.begin();
1231 it != source.session_storage_namespace_map_.end();
1232 ++it) {
1233 SessionStorageNamespaceImpl* source_namespace =
1234 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1235 session_storage_namespace_map_.insert(
1236 make_pair(it->first, source_namespace->Clone()));
1237 }
[email protected]4e6419c2010-01-15 04:50:341238
[email protected]2ca1ea662012-10-04 02:26:361239 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571240
1241 // Copy the max page id map from the old tab to the new tab. This ensures
1242 // that new and existing navigations in the tab's current SiteInstances
1243 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561244 web_contents_->CopyMaxPageIDsFrom(source.web_contents());
[email protected]ce3fa3c2009-04-20 19:55:571245}
1246
[email protected]d202a7c2012-01-04 07:53:471247void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501248 NavigationController* temp) {
[email protected]474f8512013-05-31 22:31:161249 // It is up to callers to check the invariants before calling this.
1250 CHECK(CanPruneAllButVisible());
1251
[email protected]d202a7c2012-01-04 07:53:471252 NavigationControllerImpl* source =
1253 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191254 // The SiteInstance and page_id of the last committed entry needs to be
1255 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571256 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1257 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231258 NavigationEntryImpl* last_committed =
1259 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571260 scoped_refptr<SiteInstance> site_instance(
[email protected]474f8512013-05-31 22:31:161261 last_committed->site_instance());
1262 int32 minimum_page_id = last_committed->GetPageID();
1263 int32 max_page_id =
1264 web_contents_->GetMaxPageIDForSiteInstance(site_instance.get());
[email protected]e1cd5452010-08-26 18:03:251265
1266 // Remove all the entries leaving the active entry.
[email protected]474f8512013-05-31 22:31:161267 PruneAllButVisibleInternal();
[email protected]e1cd5452010-08-26 18:03:251268
[email protected]474f8512013-05-31 22:31:161269 // We now have one entry, possibly with a new pending entry. Ensure that
1270 // adding the entries from source won't put us over the limit.
1271 DCHECK_EQ(1, GetEntryCount());
1272 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251273
[email protected]47e020a2010-10-15 14:43:371274 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]474f8512013-05-31 22:31:161275 // we don't want to copy over the transient entry. Ignore any pending entry,
1276 // since it has not committed in source.
1277 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251278 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551279 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251280 else
1281 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371282 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251283
1284 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551285 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141286
[email protected]2db9bd72012-04-13 20:20:561287 web_contents_->SetHistoryLengthAndPrune(site_instance.get(),
[email protected]9e1ad4b2011-08-14 16:49:191288 max_source_index,
1289 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571290
1291 // Copy the max page id map from the old tab to the new tab. This ensures
1292 // that new and existing navigations in the tab's current SiteInstances
1293 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561294 web_contents_->CopyMaxPageIDsFrom(source->web_contents());
[email protected]91854cd2012-01-10 19:43:571295
1296 // If there is a last committed entry, be sure to include it in the new
1297 // max page ID map.
1298 if (max_page_id > -1) {
[email protected]2db9bd72012-04-13 20:20:561299 web_contents_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
[email protected]91854cd2012-01-10 19:43:571300 max_page_id);
1301 }
[email protected]e1cd5452010-08-26 18:03:251302}
1303
[email protected]474f8512013-05-31 22:31:161304bool NavigationControllerImpl::CanPruneAllButVisible() {
1305 // If there is no last committed entry, we cannot prune. Even if there is a
1306 // pending entry, it may not commit, leaving this WebContents blank, despite
1307 // possibly giving it new entries via CopyStateFromAndPrune.
1308 if (last_committed_entry_index_ == -1)
1309 return false;
[email protected]9350602e2013-02-26 23:27:441310
[email protected]474f8512013-05-31 22:31:161311 // We cannot prune if there is a pending entry at an existing entry index.
1312 // It may not commit, so we have to keep the last committed entry, and thus
1313 // there is no sensible place to keep the pending entry. It is ok to have
1314 // a new pending entry, which can optionally commit as a new navigation.
1315 if (pending_entry_index_ != -1)
1316 return false;
1317
1318 // We should not prune if we are currently showing a transient entry.
1319 if (transient_entry_index_ != -1)
1320 return false;
1321
1322 return true;
1323}
1324
1325void NavigationControllerImpl::PruneAllButVisible() {
1326 PruneAllButVisibleInternal();
1327
1328 // We should still have a last committed entry.
1329 DCHECK_NE(-1, last_committed_entry_index_);
[email protected]9350602e2013-02-26 23:27:441330
1331 NavigationEntryImpl* entry =
1332 NavigationEntryImpl::FromNavigationEntry(GetActiveEntry());
[email protected]9350602e2013-02-26 23:27:441333 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1334 // SetHistoryLengthAndPrune, because it will create history_length additional
1335 // history entries.
1336 // TODO(jochen): This API is confusing and we should clean it up.
1337 // http://crbug.com/178491
1338 web_contents_->SetHistoryLengthAndPrune(
1339 entry->site_instance(), 0, entry->GetPageID());
1340}
1341
[email protected]474f8512013-05-31 22:31:161342void NavigationControllerImpl::PruneAllButVisibleInternal() {
1343 // It is up to callers to check the invariants before calling this.
1344 CHECK(CanPruneAllButVisible());
[email protected]97b6c4f2010-09-27 19:31:261345
[email protected]474f8512013-05-31 22:31:161346 // Erase all entries but the last committed entry. There may still be a
1347 // new pending entry after this.
1348 entries_.erase(entries_.begin(),
1349 entries_.begin() + last_committed_entry_index_);
1350 entries_.erase(entries_.begin() + 1, entries_.end());
1351 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261352}
1353
[email protected]15f46dc2013-01-24 05:40:241354void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101355 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241356}
1357
[email protected]d1198fd2012-08-13 22:50:191358void NavigationControllerImpl::SetSessionStorageNamespace(
1359 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211360 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191361 if (!session_storage_namespace)
1362 return;
1363
1364 // We can't overwrite an existing SessionStorage without violating spec.
1365 // Attempts to do so may give a tab access to another tab's session storage
1366 // so die hard on an error.
1367 bool successful_insert = session_storage_namespace_map_.insert(
1368 make_pair(partition_id,
1369 static_cast<SessionStorageNamespaceImpl*>(
1370 session_storage_namespace)))
1371 .second;
1372 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
1373}
1374
[email protected]d202a7c2012-01-04 07:53:471375void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561376 max_restored_page_id_ = max_id;
1377}
1378
[email protected]d202a7c2012-01-04 07:53:471379int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561380 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551381}
1382
1383SessionStorageNamespace*
[email protected]8ff00d72012-10-23 19:12:211384NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
[email protected]d1198fd2012-08-13 22:50:191385 std::string partition_id;
1386 if (instance) {
1387 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1388 // this if statement so |instance| must not be NULL.
1389 partition_id =
[email protected]e94bbcb2012-09-07 05:33:571390 GetContentClient()->browser()->GetStoragePartitionIdForSite(
[email protected]77ab17312012-09-28 15:34:591391 browser_context_, instance->GetSiteURL());
[email protected]d1198fd2012-08-13 22:50:191392 }
1393
1394 SessionStorageNamespaceMap::const_iterator it =
1395 session_storage_namespace_map_.find(partition_id);
1396 if (it != session_storage_namespace_map_.end())
1397 return it->second.get();
1398
1399 // Create one if no one has accessed session storage for this partition yet.
[email protected]4c3a23582012-08-18 08:54:341400 //
1401 // TODO(ajwong): Should this use the |partition_id| directly rather than
1402 // re-lookup via |instance|? http://crbug.com/142685
[email protected]8ff00d72012-10-23 19:12:211403 StoragePartition* partition =
[email protected]4c3a23582012-08-18 08:54:341404 BrowserContext::GetStoragePartition(browser_context_, instance);
[email protected]d1198fd2012-08-13 22:50:191405 SessionStorageNamespaceImpl* session_storage_namespace =
1406 new SessionStorageNamespaceImpl(
1407 static_cast<DOMStorageContextImpl*>(
[email protected]4c3a23582012-08-18 08:54:341408 partition->GetDOMStorageContext()));
[email protected]d1198fd2012-08-13 22:50:191409 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1410
1411 return session_storage_namespace;
1412}
1413
1414SessionStorageNamespace*
1415NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1416 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1417 return GetSessionStorageNamespace(NULL);
1418}
1419
1420const SessionStorageNamespaceMap&
1421NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1422 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551423}
[email protected]d202a7c2012-01-04 07:53:471424
1425bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561426 return needs_reload_;
1427}
[email protected]a26023822011-12-29 00:23:551428
[email protected]d202a7c2012-01-04 07:53:471429void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551430 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121431 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311432
1433 DiscardNonCommittedEntries();
1434
1435 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121436 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311437 last_committed_entry_index_--;
1438}
1439
[email protected]d202a7c2012-01-04 07:53:471440void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471441 bool transient = transient_entry_index_ != -1;
1442 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291443
[email protected]cbab76d2008-10-13 22:42:471444 // If there was a transient entry, invalidate everything so the new active
1445 // entry state is shown.
1446 if (transient) {
[email protected]2db9bd72012-04-13 20:20:561447 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471448 }
initial.commit09911bf2008-07-26 23:55:291449}
1450
[email protected]d202a7c2012-01-04 07:53:471451NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251452 return pending_entry_;
1453}
1454
[email protected]d202a7c2012-01-04 07:53:471455int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551456 return pending_entry_index_;
1457}
1458
[email protected]d202a7c2012-01-04 07:53:471459void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1460 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211461 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201462
1463 // Copy the pending entry's unique ID to the committed entry.
1464 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231465 const NavigationEntryImpl* const pending_entry =
1466 (pending_entry_index_ == -1) ?
1467 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201468 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511469 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201470
[email protected]cbab76d2008-10-13 22:42:471471 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201472
1473 int current_size = static_cast<int>(entries_.size());
1474
[email protected]765b35502008-08-21 00:51:201475 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451476 // Prune any entries which are in front of the current entry.
1477 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311478 // last_committed_entry_index_ must be updated here since calls to
1479 // NotifyPrunedEntries() below may re-enter and we must make sure
1480 // last_committed_entry_index_ is not left in an invalid state.
1481 if (replace)
1482 --last_committed_entry_index_;
1483
[email protected]c12bf1a12008-09-17 16:28:491484 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311485 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491486 num_pruned++;
[email protected]765b35502008-08-21 00:51:201487 entries_.pop_back();
1488 current_size--;
1489 }
[email protected]c12bf1a12008-09-17 16:28:491490 if (num_pruned > 0) // Only notify if we did prune something.
1491 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201492 }
1493
[email protected]944822b2012-03-02 20:57:251494 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201495
[email protected]10f417c52011-12-28 21:04:231496 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201497 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431498
1499 // This is a new page ID, so we need everybody to know about it.
[email protected]2db9bd72012-04-13 20:20:561500 web_contents_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291501}
1502
[email protected]944822b2012-03-02 20:57:251503void NavigationControllerImpl::PruneOldestEntryIfFull() {
1504 if (entries_.size() >= max_entry_count()) {
1505 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021506 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251507 RemoveEntryAtIndex(0);
1508 NotifyPrunedEntries(this, true, 1);
1509 }
1510}
1511
[email protected]d202a7c2012-01-04 07:53:471512void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011513 needs_reload_ = false;
1514
[email protected]83c2e232011-10-07 21:36:461515 // If we were navigating to a slow-to-commit page, and the user performs
1516 // a session history navigation to the last committed page, RenderViewHost
1517 // will force the throbber to start, but WebKit will essentially ignore the
1518 // navigation, and won't send a message to stop the throbber. To prevent this
1519 // from happening, we drop the navigation here and stop the slow-to-commit
1520 // page from loading (which would normally happen during the navigation).
1521 if (pending_entry_index_ != -1 &&
1522 pending_entry_index_ == last_committed_entry_index_ &&
1523 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231524 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511525 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211526 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]2db9bd72012-04-13 20:20:561527 web_contents_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121528
1529 // If an interstitial page is showing, we want to close it to get back
1530 // to what was showing before.
[email protected]2db9bd72012-04-13 20:20:561531 if (web_contents_->GetInterstitialPage())
1532 web_contents_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121533
[email protected]83c2e232011-10-07 21:36:461534 DiscardNonCommittedEntries();
1535 return;
1536 }
1537
[email protected]6a13a6c2011-12-20 21:47:121538 // If an interstitial page is showing, the previous renderer is blocked and
1539 // cannot make new requests. Unblock (and disable) it to allow this
1540 // navigation to succeed. The interstitial will stay visible until the
1541 // resulting DidNavigate.
[email protected]2db9bd72012-04-13 20:20:561542 if (web_contents_->GetInterstitialPage()) {
1543 static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131544 CancelForNavigation();
1545 }
[email protected]6a13a6c2011-12-20 21:47:121546
initial.commit09911bf2008-07-26 23:55:291547 // For session history navigations only the pending_entry_index_ is set.
1548 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201549 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201550 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291551 }
1552
[email protected]2db9bd72012-04-13 20:20:561553 if (!web_contents_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471554 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381555
1556 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1557 // it in now that we know. This allows us to find the entry when it commits.
1558 // This works for browser-initiated navigations. We handle renderer-initiated
[email protected]2db9bd72012-04-13 20:20:561559 // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset.
[email protected]77362eb2011-08-01 17:18:381560 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231561 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331562 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]2db9bd72012-04-13 20:20:561563 web_contents_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231564 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381565 }
initial.commit09911bf2008-07-26 23:55:291566}
1567
[email protected]d202a7c2012-01-04 07:53:471568void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211569 LoadCommittedDetails* details) {
[email protected]df1af242009-05-01 00:11:401570 details->entry = GetActiveEntry();
[email protected]8ff00d72012-10-23 19:12:211571 NotificationDetails notification_details =
1572 Details<LoadCommittedDetails>(details);
[email protected]df1af242009-05-01 00:11:401573
[email protected]2db9bd72012-04-13 20:20:561574 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401575 // location bar will have up-to-date information about the security style
1576 // when it wants to draw. See http://crbug.com/11157
1577 ssl_manager_.DidCommitProvisionalLoad(notification_details);
1578
initial.commit09911bf2008-07-26 23:55:291579 // TODO(pkasting): http://b/1113079 Probably these explicit notification paths
1580 // should be removed, and interested parties should just listen for the
1581 // notification below instead.
[email protected]2db9bd72012-04-13 20:20:561582 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
initial.commit09911bf2008-07-26 23:55:291583
[email protected]cbb1ef592013-06-05 19:49:461584 web_contents_->NotifyNavigationEntryCommitted(*details);
1585
[email protected]8ff00d72012-10-23 19:12:211586 NotificationService::current()->Notify(
1587 NOTIFICATION_NAV_ENTRY_COMMITTED,
1588 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401589 notification_details);
initial.commit09911bf2008-07-26 23:55:291590}
1591
initial.commit09911bf2008-07-26 23:55:291592// static
[email protected]d202a7c2012-01-04 07:53:471593size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231594 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1595 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211596 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231597}
1598
[email protected]d202a7c2012-01-04 07:53:471599void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221600 if (is_active && needs_reload_)
1601 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291602}
1603
[email protected]d202a7c2012-01-04 07:53:471604void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291605 if (!needs_reload_)
1606 return;
1607
initial.commit09911bf2008-07-26 23:55:291608 // Calling Reload() results in ignoring state, and not loading.
1609 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1610 // cached state.
1611 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161612 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291613}
1614
[email protected]d202a7c2012-01-04 07:53:471615void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1616 int index) {
[email protected]8ff00d72012-10-23 19:12:211617 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091618 det.changed_entry = entry;
1619 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211620 NotificationService::current()->Notify(
1621 NOTIFICATION_NAV_ENTRY_CHANGED,
1622 Source<NavigationController>(this),
1623 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291624}
1625
[email protected]d202a7c2012-01-04 07:53:471626void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361627 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551628 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361629 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291630
[email protected]71fde352011-12-29 03:29:561631 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291632
1633 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291634}
[email protected]765b35502008-08-21 00:51:201635
[email protected]d202a7c2012-01-04 07:53:471636void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]765b35502008-08-21 00:51:201637 if (pending_entry_index_ == -1)
1638 delete pending_entry_;
1639 pending_entry_ = NULL;
1640 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471641
1642 DiscardTransientEntry();
1643}
1644
[email protected]d202a7c2012-01-04 07:53:471645void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471646 if (transient_entry_index_ == -1)
1647 return;
[email protected]a0e69262009-06-03 19:08:481648 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181649 if (last_committed_entry_index_ > transient_entry_index_)
1650 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471651 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201652}
1653
[email protected]d202a7c2012-01-04 07:53:471654int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111655 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201656 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111657 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511658 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201659 return i;
1660 }
1661 return -1;
1662}
[email protected]cbab76d2008-10-13 22:42:471663
[email protected]d202a7c2012-01-04 07:53:471664NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471665 if (transient_entry_index_ == -1)
1666 return NULL;
1667 return entries_[transient_entry_index_].get();
1668}
[email protected]e1cd5452010-08-26 18:03:251669
[email protected]0b684262013-02-20 02:18:211670void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1671 // Discard any current transient entry, we can only have one at a time.
1672 int index = 0;
1673 if (last_committed_entry_index_ != -1)
1674 index = last_committed_entry_index_ + 1;
1675 DiscardTransientEntry();
1676 entries_.insert(
1677 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1678 NavigationEntryImpl::FromNavigationEntry(entry)));
1679 transient_entry_index_ = index;
1680 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
1681}
1682
[email protected]d202a7c2012-01-04 07:53:471683void NavigationControllerImpl::InsertEntriesFrom(
1684 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251685 int max_index) {
[email protected]a26023822011-12-29 00:23:551686 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251687 size_t insert_index = 0;
1688 for (int i = 0; i < max_index; i++) {
1689 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041690 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211691 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251692 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231693 linked_ptr<NavigationEntryImpl>(
1694 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251695 }
1696 }
1697}
[email protected]c5b88d82012-10-06 17:03:331698
1699void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1700 const base::Callback<base::Time()>& get_timestamp_callback) {
1701 get_timestamp_callback_ = get_timestamp_callback;
1702}
[email protected]8ff00d72012-10-23 19:12:211703
1704} // namespace content