blob: 678b7b491d23905779ea5c6aff3a42c4aef68cdd [file] [log] [blame]
[email protected]91854cd2012-01-10 19:43:571// Copyright (c) 2012 The Chromium Authors. All rights reserved.
license.botbf09a502008-08-24 00:55:552// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
initial.commit09911bf2008-07-26 23:55:294
[email protected]f9e4dae2012-04-10 21:26:375#include "content/browser/web_contents/navigation_controller_impl.h"
initial.commit09911bf2008-07-26 23:55:296
[email protected]c5b88d82012-10-06 17:03:337#include "base/bind.h"
[email protected]e11f0e92013-06-12 15:12:038#include "base/debug/trace_event.h"
initial.commit09911bf2008-07-26 23:55:299#include "base/logging.h"
[email protected]348fbaac2013-06-11 06:31:5110#include "base/strings/string_number_conversions.h" // Temporary
11#include "base/strings/string_util.h"
[email protected]74ebfb12013-06-07 20:48:0012#include "base/strings/utf_string_conversions.h"
[email protected]a43858f2013-06-28 15:18:3713#include "base/time/time.h"
[email protected]825b1662012-03-12 19:07:3114#include "content/browser/browser_url_handler_impl.h"
[email protected]5f2aa722013-08-07 16:59:4115#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
[email protected]1ea3c792012-04-17 01:25:0416#include "content/browser/dom_storage/session_storage_namespace_impl.h"
[email protected]b3c41c0b2012-03-06 15:48:3217#include "content/browser/renderer_host/render_view_host_impl.h" // Temporary
[email protected]b6583592012-01-25 19:52:3318#include "content/browser/site_instance_impl.h"
[email protected]f9e4dae2012-04-10 21:26:3719#include "content/browser/web_contents/debug_urls.h"
20#include "content/browser/web_contents/interstitial_page_impl.h"
21#include "content/browser/web_contents/navigation_entry_impl.h"
[email protected]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,
[email protected]b9d4dfdc2013-08-08 00:25:12108 bool renderer_says_in_page,
109 NavigationType navigation_type) {
[email protected]ce760d742012-08-30 22:31:10110 if (existing_url == new_url)
111 return renderer_says_in_page;
112
113 if (!new_url.has_ref()) {
[email protected]b9d4dfdc2013-08-08 00:25:12114 // When going back from the ref URL to the non ref one the navigation type
115 // is IN_PAGE.
116 return navigation_type == NAVIGATION_TYPE_IN_PAGE;
[email protected]192d8c5e2010-02-23 07:26:32117 }
[email protected]e9ba4472008-09-14 15:42:43118
119 url_canon::Replacements<char> replacements;
120 replacements.ClearRef();
121 return existing_url.ReplaceComponents(replacements) ==
122 new_url.ReplaceComponents(replacements);
123}
124
[email protected]bf70edce2012-06-20 22:32:22125// Determines whether or not we should be carrying over a user agent override
126// between two NavigationEntries.
[email protected]8ff00d72012-10-23 19:12:21127bool ShouldKeepOverride(const NavigationEntry* last_entry) {
[email protected]bf70edce2012-06-20 22:32:22128 return last_entry && last_entry->GetIsOverridingUserAgent();
129}
130
[email protected]e9ba4472008-09-14 15:42:43131} // namespace
132
[email protected]d202a7c2012-01-04 07:53:47133// NavigationControllerImpl ----------------------------------------------------
initial.commit09911bf2008-07-26 23:55:29134
[email protected]9b51970d2011-12-09 23:10:23135const size_t kMaxEntryCountForTestingNotSet = -1;
136
[email protected]765b35502008-08-21 00:51:20137// static
[email protected]d202a7c2012-01-04 07:53:47138size_t NavigationControllerImpl::max_entry_count_for_testing_ =
[email protected]9b51970d2011-12-09 23:10:23139 kMaxEntryCountForTestingNotSet;
[email protected]765b35502008-08-21 00:51:20140
[email protected]e6fec472013-05-14 05:29:02141// Should Reload check for post data? The default is true, but is set to false
[email protected]cdcb1dee2012-01-04 00:46:20142// when testing.
143static bool g_check_for_repost = true;
initial.commit09911bf2008-07-26 23:55:29144
[email protected]71fde352011-12-29 03:29:56145// static
[email protected]cdcb1dee2012-01-04 00:46:20146NavigationEntry* NavigationController::CreateNavigationEntry(
[email protected]71fde352011-12-29 03:29:56147 const GURL& url,
[email protected]cdcb1dee2012-01-04 00:46:20148 const Referrer& referrer,
149 PageTransition transition,
[email protected]71fde352011-12-29 03:29:56150 bool is_renderer_initiated,
151 const std::string& extra_headers,
[email protected]cdcb1dee2012-01-04 00:46:20152 BrowserContext* browser_context) {
[email protected]71fde352011-12-29 03:29:56153 // Allow the browser URL handler to rewrite the URL. This will, for example,
154 // remove "view-source:" from the beginning of the URL to get the URL that
155 // will actually be loaded. This real URL won't be shown to the user, just
156 // used internally.
157 GURL loaded_url(url);
158 bool reverse_on_redirect = false;
[email protected]825b1662012-03-12 19:07:31159 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
[email protected]71fde352011-12-29 03:29:56160 &loaded_url, browser_context, &reverse_on_redirect);
161
162 NavigationEntryImpl* entry = new NavigationEntryImpl(
163 NULL, // The site instance for tabs is sent on navigation
[email protected]2db9bd72012-04-13 20:20:56164 // (WebContents::GetSiteInstance).
[email protected]71fde352011-12-29 03:29:56165 -1,
166 loaded_url,
167 referrer,
168 string16(),
169 transition,
170 is_renderer_initiated);
171 entry->SetVirtualURL(url);
172 entry->set_user_typed_url(url);
173 entry->set_update_virtual_url_with_url(reverse_on_redirect);
174 entry->set_extra_headers(extra_headers);
175 return entry;
176}
177
[email protected]cdcb1dee2012-01-04 00:46:20178// static
179void NavigationController::DisablePromptOnRepost() {
180 g_check_for_repost = false;
181}
182
[email protected]c5b88d82012-10-06 17:03:33183base::Time NavigationControllerImpl::TimeSmoother::GetSmoothedTime(
184 base::Time t) {
185 // If |t| is between the water marks, we're in a run of duplicates
186 // or just getting out of it, so increase the high-water mark to get
187 // a time that probably hasn't been used before and return it.
188 if (low_water_mark_ <= t && t <= high_water_mark_) {
189 high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
190 return high_water_mark_;
191 }
192
193 // Otherwise, we're clear of the last duplicate run, so reset the
194 // water marks.
195 low_water_mark_ = high_water_mark_ = t;
196 return t;
197}
198
[email protected]d202a7c2012-01-04 07:53:47199NavigationControllerImpl::NavigationControllerImpl(
[email protected]2db9bd72012-04-13 20:20:56200 WebContentsImpl* web_contents,
[email protected]d1198fd2012-08-13 22:50:19201 BrowserContext* browser_context)
[email protected]3d7474ff2011-07-27 17:47:37202 : browser_context_(browser_context),
[email protected]765b35502008-08-21 00:51:20203 pending_entry_(NULL),
204 last_committed_entry_index_(-1),
205 pending_entry_index_(-1),
[email protected]cbab76d2008-10-13 22:42:47206 transient_entry_index_(-1),
[email protected]2db9bd72012-04-13 20:20:56207 web_contents_(web_contents),
initial.commit09911bf2008-07-26 23:55:29208 max_restored_page_id_(-1),
[email protected]69e797f2013-04-30 01:10:22209 ssl_manager_(this),
[email protected]38b8f4e2009-09-24 19:44:57210 needs_reload_(false),
[email protected]27ba81c2012-08-21 17:04:09211 is_initial_navigation_(true),
[email protected]c5b88d82012-10-06 17:03:33212 pending_reload_(NO_RELOAD),
[email protected]8cea7892013-02-06 06:49:31213 get_timestamp_callback_(base::Bind(&base::Time::Now)),
[email protected]69e797f2013-04-30 01:10:22214 screenshot_manager_(new WebContentsScreenshotManager(this)) {
[email protected]3d7474ff2011-07-27 17:47:37215 DCHECK(browser_context_);
initial.commit09911bf2008-07-26 23:55:29216}
217
[email protected]d202a7c2012-01-04 07:53:47218NavigationControllerImpl::~NavigationControllerImpl() {
[email protected]cbab76d2008-10-13 22:42:47219 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:29220}
221
[email protected]d202a7c2012-01-04 07:53:47222WebContents* NavigationControllerImpl::GetWebContents() const {
[email protected]2db9bd72012-04-13 20:20:56223 return web_contents_;
[email protected]fbc5e5f92012-01-02 06:08:32224}
225
[email protected]d202a7c2012-01-04 07:53:47226BrowserContext* NavigationControllerImpl::GetBrowserContext() const {
[email protected]a26023822011-12-29 00:23:55227 return browser_context_;
228}
229
[email protected]d202a7c2012-01-04 07:53:47230void NavigationControllerImpl::SetBrowserContext(
231 BrowserContext* browser_context) {
[email protected]cdcb1dee2012-01-04 00:46:20232 browser_context_ = browser_context;
233}
234
[email protected]d202a7c2012-01-04 07:53:47235void NavigationControllerImpl::Restore(
[email protected]5e369672009-11-03 23:48:30236 int selected_navigation,
[email protected]2ca1ea662012-10-04 02:26:36237 RestoreType type,
[email protected]10f417c52011-12-28 21:04:23238 std::vector<NavigationEntry*>* entries) {
[email protected]ce3fa3c2009-04-20 19:55:57239 // Verify that this controller is unused and that the input is valid.
[email protected]a26023822011-12-29 00:23:55240 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:57241 DCHECK(selected_navigation >= 0 &&
[email protected]03838e22011-06-06 15:27:14242 selected_navigation < static_cast<int>(entries->size()));
[email protected]ce3fa3c2009-04-20 19:55:57243
[email protected]ce3fa3c2009-04-20 19:55:57244 needs_reload_ = true;
[email protected]ad23a092011-12-28 07:02:04245 for (size_t i = 0; i < entries->size(); ++i) {
[email protected]10f417c52011-12-28 21:04:23246 NavigationEntryImpl* entry =
247 NavigationEntryImpl::FromNavigationEntry((*entries)[i]);
248 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]ad23a092011-12-28 07:02:04249 }
[email protected]03838e22011-06-06 15:27:14250 entries->clear();
[email protected]ce3fa3c2009-04-20 19:55:57251
252 // And finish the restore.
[email protected]2ca1ea662012-10-04 02:26:36253 FinishRestore(selected_navigation, type);
[email protected]ce3fa3c2009-04-20 19:55:57254}
255
[email protected]d202a7c2012-01-04 07:53:47256void NavigationControllerImpl::Reload(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16257 ReloadInternal(check_for_repost, RELOAD);
258}
[email protected]d202a7c2012-01-04 07:53:47259void NavigationControllerImpl::ReloadIgnoringCache(bool check_for_repost) {
[email protected]1ccb3568d2010-02-19 10:51:16260 ReloadInternal(check_for_repost, RELOAD_IGNORING_CACHE);
261}
[email protected]7c16976c2012-08-04 02:38:23262void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
263 ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
264}
[email protected]1ccb3568d2010-02-19 10:51:16265
[email protected]d202a7c2012-01-04 07:53:47266void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
267 ReloadType reload_type) {
[email protected]669e0ba2012-08-30 23:57:36268 if (transient_entry_index_ != -1) {
269 // If an interstitial is showing, treat a reload as a navigation to the
270 // transient entry's URL.
[email protected]6286a3792013-10-09 04:03:27271 NavigationEntryImpl* transient_entry =
272 NavigationEntryImpl::FromNavigationEntry(GetTransientEntry());
273 if (!transient_entry)
[email protected]669e0ba2012-08-30 23:57:36274 return;
[email protected]6286a3792013-10-09 04:03:27275 LoadURL(transient_entry->GetURL(),
[email protected]8ff00d72012-10-23 19:12:21276 Referrer(),
277 PAGE_TRANSITION_RELOAD,
[email protected]6286a3792013-10-09 04:03:27278 transient_entry->extra_headers());
[email protected]cbab76d2008-10-13 22:42:47279 return;
[email protected]669e0ba2012-08-30 23:57:36280 }
[email protected]cbab76d2008-10-13 22:42:47281
[email protected]59167c22013-06-03 18:07:32282 NavigationEntryImpl* entry = NULL;
283 int current_index = -1;
284
285 // If we are reloading the initial navigation, just use the current
286 // pending entry. Otherwise look up the current entry.
287 if (IsInitialNavigation() && pending_entry_) {
288 entry = pending_entry_;
289 // The pending entry might be in entries_ (e.g., after a Clone), so we
290 // should also update the current_index.
291 current_index = pending_entry_index_;
292 } else {
293 DiscardNonCommittedEntriesInternal();
294 current_index = GetCurrentEntryIndex();
295 if (current_index != -1) {
296 entry = NavigationEntryImpl::FromNavigationEntry(
297 GetEntryAtIndex(current_index));
298 }
[email protected]979a4bc2013-04-24 01:27:15299 }
[email protected]241db352013-04-22 18:04:05300
[email protected]59167c22013-06-03 18:07:32301 // If we are no where, then we can't reload. TODO(darin): We should add a
302 // CanReload method.
303 if (!entry)
304 return;
305
[email protected]cdcb1dee2012-01-04 00:46:20306 if (g_check_for_repost && check_for_repost &&
[email protected]59167c22013-06-03 18:07:32307 entry->GetHasPostData()) {
[email protected]a3a1d142008-12-19 00:42:30308 // The user is asking to reload a page with POST data. Prompt to make sure
[email protected]b5bb35f2009-02-05 20:17:07309 // they really want to do this. If they do, the dialog will call us back
310 // with check_for_repost = false.
[email protected]17e286e2013-03-01 23:29:39311 web_contents_->NotifyBeforeFormRepostWarningShow();
[email protected]965bb092010-04-09 11:59:02312
[email protected]106a0812010-03-18 00:15:12313 pending_reload_ = reload_type;
[email protected]2db9bd72012-04-13 20:20:56314 web_contents_->Activate();
315 web_contents_->GetDelegate()->ShowRepostFormWarningDialog(web_contents_);
initial.commit09911bf2008-07-26 23:55:29316 } else {
[email protected]59167c22013-06-03 18:07:32317 if (!IsInitialNavigation())
318 DiscardNonCommittedEntriesInternal();
[email protected]c3b3d952012-01-31 12:52:26319
[email protected]bcd904482012-02-01 01:54:22320 // If we are reloading an entry that no longer belongs to the current
321 // site instance (for example, refreshing a page for just installed app),
322 // the reload must happen in a new process.
323 // The new entry must have a new page_id and site instance, so it behaves
324 // as new navigation (which happens to clear forward history).
[email protected]7e58cb272012-03-30 21:22:30325 // Tabs that are discarded due to low memory conditions may not have a site
326 // instance, and should not be treated as a cross-site reload.
[email protected]59167c22013-06-03 18:07:32327 SiteInstanceImpl* site_instance = entry->site_instance();
[email protected]7e58cb272012-03-30 21:22:30328 if (site_instance &&
329 site_instance->HasWrongProcessForURL(entry->GetURL())) {
[email protected]bcd904482012-02-01 01:54:22330 // Create a navigation entry that resembles the current one, but do not
[email protected]688aa65c62012-09-28 04:32:22331 // copy page id, site instance, content state, or timestamp.
[email protected]bcd904482012-02-01 01:54:22332 NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
333 CreateNavigationEntry(
334 entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
335 false, entry->extra_headers(), browser_context_));
[email protected]c3b3d952012-01-31 12:52:26336
[email protected]11535962012-02-09 21:02:10337 // Mark the reload type as NO_RELOAD, so navigation will not be considered
338 // a reload in the renderer.
339 reload_type = NavigationController::NO_RELOAD;
340
[email protected]e2caa032012-11-15 23:29:18341 nav_entry->set_should_replace_entry(true);
[email protected]bcd904482012-02-01 01:54:22342 pending_entry_ = nav_entry;
343 } else {
[email protected]59167c22013-06-03 18:07:32344 pending_entry_ = entry;
[email protected]bcd904482012-02-01 01:54:22345 pending_entry_index_ = current_index;
346
347 // The title of the page being reloaded might have been removed in the
348 // meanwhile, so we need to revert to the default title upon reload and
349 // invalidate the previously cached title (SetTitle will do both).
350 // See Chromium issue 96041.
[email protected]59167c22013-06-03 18:07:32351 pending_entry_->SetTitle(string16());
[email protected]bcd904482012-02-01 01:54:22352
[email protected]59167c22013-06-03 18:07:32353 pending_entry_->SetTransitionType(PAGE_TRANSITION_RELOAD);
[email protected]bcd904482012-02-01 01:54:22354 }
355
[email protected]1ccb3568d2010-02-19 10:51:16356 NavigateToPendingEntry(reload_type);
initial.commit09911bf2008-07-26 23:55:29357 }
358}
359
[email protected]d202a7c2012-01-04 07:53:47360void NavigationControllerImpl::CancelPendingReload() {
[email protected]106a0812010-03-18 00:15:12361 DCHECK(pending_reload_ != NO_RELOAD);
362 pending_reload_ = NO_RELOAD;
363}
364
[email protected]d202a7c2012-01-04 07:53:47365void NavigationControllerImpl::ContinuePendingReload() {
[email protected]106a0812010-03-18 00:15:12366 if (pending_reload_ == NO_RELOAD) {
367 NOTREACHED();
368 } else {
369 ReloadInternal(false, pending_reload_);
[email protected]965bb092010-04-09 11:59:02370 pending_reload_ = NO_RELOAD;
[email protected]106a0812010-03-18 00:15:12371 }
372}
373
[email protected]cd2e15742013-03-08 04:08:31374bool NavigationControllerImpl::IsInitialNavigation() const {
[email protected]27ba81c2012-08-21 17:04:09375 return is_initial_navigation_;
[email protected]c70f9b82010-04-21 07:31:11376}
377
[email protected]d202a7c2012-01-04 07:53:47378NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
[email protected]b6583592012-01-25 19:52:33379 SiteInstance* instance, int32 page_id) const {
[email protected]7f0005a2009-04-15 03:25:11380 int index = GetEntryIndexWithPageID(instance, page_id);
[email protected]765b35502008-08-21 00:51:20381 return (index != -1) ? entries_[index].get() : NULL;
382}
383
[email protected]d202a7c2012-01-04 07:53:47384void NavigationControllerImpl::LoadEntry(NavigationEntryImpl* entry) {
[email protected]765b35502008-08-21 00:51:20385 // When navigating to a new page, we don't know for sure if we will actually
386 // end up leaving the current page. The new page load could for example
387 // result in a download or a 'no content' response (e.g., a mailto: URL).
[email protected]59167c22013-06-03 18:07:32388 SetPendingEntry(entry);
389 NavigateToPendingEntry(NO_RELOAD);
390}
391
392void NavigationControllerImpl::SetPendingEntry(NavigationEntryImpl* entry) {
[email protected]cbab76d2008-10-13 22:42:47393 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:20394 pending_entry_ = entry;
[email protected]8ff00d72012-10-23 19:12:21395 NotificationService::current()->Notify(
396 NOTIFICATION_NAV_ENTRY_PENDING,
397 Source<NavigationController>(this),
398 Details<NavigationEntry>(entry));
[email protected]765b35502008-08-21 00:51:20399}
400
[email protected]d202a7c2012-01-04 07:53:47401NavigationEntry* NavigationControllerImpl::GetActiveEntry() const {
[email protected]cbab76d2008-10-13 22:42:47402 if (transient_entry_index_ != -1)
403 return entries_[transient_entry_index_].get();
404 if (pending_entry_)
405 return pending_entry_;
406 return GetLastCommittedEntry();
[email protected]765b35502008-08-21 00:51:20407}
408
[email protected]d202a7c2012-01-04 07:53:47409NavigationEntry* NavigationControllerImpl::GetVisibleEntry() const {
[email protected]867e1f92011-08-30 19:01:19410 if (transient_entry_index_ != -1)
411 return entries_[transient_entry_index_].get();
[email protected]59167c22013-06-03 18:07:32412 // The pending entry is safe to return for new (non-history), browser-
413 // initiated navigations. Most renderer-initiated navigations should not
414 // show the pending entry, to prevent URL spoof attacks.
415 //
416 // We make an exception for renderer-initiated navigations in new tabs, as
417 // long as no other page has tried to access the initial empty document in
418 // the new tab. If another page modifies this blank page, a URL spoof is
419 // possible, so we must stop showing the pending entry.
420 RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
421 web_contents_->GetRenderViewHost());
422 bool safe_to_show_pending =
423 pending_entry_ &&
424 // Require a new navigation.
[email protected]36fc0392011-12-25 03:59:51425 pending_entry_->GetPageID() == -1 &&
[email protected]59167c22013-06-03 18:07:32426 // Require either browser-initiated or an unmodified new tab.
427 (!pending_entry_->is_renderer_initiated() ||
428 (IsInitialNavigation() &&
429 !GetLastCommittedEntry() &&
430 !rvh->has_accessed_initial_document()));
431
432 // Also allow showing the pending entry for history navigations in a new tab,
433 // such as Ctrl+Back. In this case, no existing page is visible and no one
434 // can script the new tab before it commits.
435 if (!safe_to_show_pending &&
436 pending_entry_ &&
437 pending_entry_->GetPageID() != -1 &&
438 IsInitialNavigation() &&
[email protected]e47ae9472011-10-13 19:48:34439 !pending_entry_->is_renderer_initiated())
[email protected]59167c22013-06-03 18:07:32440 safe_to_show_pending = true;
441
442 if (safe_to_show_pending)
[email protected]867e1f92011-08-30 19:01:19443 return pending_entry_;
444 return GetLastCommittedEntry();
445}
446
[email protected]d202a7c2012-01-04 07:53:47447int NavigationControllerImpl::GetCurrentEntryIndex() const {
[email protected]cbab76d2008-10-13 22:42:47448 if (transient_entry_index_ != -1)
449 return transient_entry_index_;
[email protected]765b35502008-08-21 00:51:20450 if (pending_entry_index_ != -1)
451 return pending_entry_index_;
452 return last_committed_entry_index_;
453}
454
[email protected]d202a7c2012-01-04 07:53:47455NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
[email protected]765b35502008-08-21 00:51:20456 if (last_committed_entry_index_ == -1)
457 return NULL;
458 return entries_[last_committed_entry_index_].get();
459}
460
[email protected]d202a7c2012-01-04 07:53:47461bool NavigationControllerImpl::CanViewSource() const {
[email protected]9d86c4982013-01-09 00:38:34462 const std::string& mime_type = web_contents_->GetContentsMimeType();
463 bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
464 !net::IsSupportedMediaMimeType(mime_type);
[email protected]6286a3792013-10-09 04:03:27465 NavigationEntry* visible_entry = GetVisibleEntry();
466 return visible_entry && !visible_entry->IsViewSourceMode() &&
[email protected]9d86c4982013-01-09 00:38:34467 is_viewable_mime_type && !web_contents_->GetInterstitialPage();
[email protected]31682282010-01-15 18:05:16468}
469
[email protected]d202a7c2012-01-04 07:53:47470int NavigationControllerImpl::GetLastCommittedEntryIndex() const {
[email protected]a26023822011-12-29 00:23:55471 return last_committed_entry_index_;
472}
473
[email protected]d202a7c2012-01-04 07:53:47474int NavigationControllerImpl::GetEntryCount() const {
[email protected]944822b2012-03-02 20:57:25475 DCHECK(entries_.size() <= max_entry_count());
[email protected]a26023822011-12-29 00:23:55476 return static_cast<int>(entries_.size());
477}
478
[email protected]d202a7c2012-01-04 07:53:47479NavigationEntry* NavigationControllerImpl::GetEntryAtIndex(
[email protected]022af742011-12-28 18:37:25480 int index) const {
481 return entries_.at(index).get();
482}
483
[email protected]d202a7c2012-01-04 07:53:47484NavigationEntry* NavigationControllerImpl::GetEntryAtOffset(
[email protected]022af742011-12-28 18:37:25485 int offset) const {
[email protected]9ba14052012-06-22 23:50:03486 int index = GetIndexForOffset(offset);
[email protected]a26023822011-12-29 00:23:55487 if (index < 0 || index >= GetEntryCount())
[email protected]765b35502008-08-21 00:51:20488 return NULL;
489
490 return entries_[index].get();
491}
492
[email protected]9ba14052012-06-22 23:50:03493int NavigationControllerImpl::GetIndexForOffset(int offset) const {
[email protected]7bc2b032012-12-19 22:45:46494 return GetCurrentEntryIndex() + offset;
[email protected]9ba14052012-06-22 23:50:03495}
496
[email protected]9677a3c2012-12-22 04:18:58497void NavigationControllerImpl::TakeScreenshot() {
[email protected]1a3f5312013-04-26 21:00:10498 screenshot_manager_->TakeScreenshot();
[email protected]9677a3c2012-12-22 04:18:58499}
500
[email protected]1a3f5312013-04-26 21:00:10501void NavigationControllerImpl::SetScreenshotManager(
502 WebContentsScreenshotManager* manager) {
503 screenshot_manager_.reset(manager ? manager :
504 new WebContentsScreenshotManager(this));
[email protected]9677a3c2012-12-22 04:18:58505}
506
[email protected]d202a7c2012-01-04 07:53:47507bool NavigationControllerImpl::CanGoBack() const {
[email protected]765b35502008-08-21 00:51:20508 return entries_.size() > 1 && GetCurrentEntryIndex() > 0;
509}
510
[email protected]d202a7c2012-01-04 07:53:47511bool NavigationControllerImpl::CanGoForward() const {
[email protected]765b35502008-08-21 00:51:20512 int index = GetCurrentEntryIndex();
513 return index >= 0 && index < (static_cast<int>(entries_.size()) - 1);
514}
515
[email protected]9ba14052012-06-22 23:50:03516bool NavigationControllerImpl::CanGoToOffset(int offset) const {
517 int index = GetIndexForOffset(offset);
518 return index >= 0 && index < GetEntryCount();
519}
520
[email protected]d202a7c2012-01-04 07:53:47521void NavigationControllerImpl::GoBack() {
[email protected]765b35502008-08-21 00:51:20522 if (!CanGoBack()) {
523 NOTREACHED();
524 return;
525 }
526
527 // Base the navigation on where we are now...
528 int current_index = GetCurrentEntryIndex();
529
[email protected]cbab76d2008-10-13 22:42:47530 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20531
532 pending_entry_index_ = current_index - 1;
[email protected]022af742011-12-28 18:37:25533 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21534 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51535 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21536 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16537 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20538}
539
[email protected]d202a7c2012-01-04 07:53:47540void NavigationControllerImpl::GoForward() {
[email protected]765b35502008-08-21 00:51:20541 if (!CanGoForward()) {
542 NOTREACHED();
543 return;
544 }
545
[email protected]cbab76d2008-10-13 22:42:47546 bool transient = (transient_entry_index_ != -1);
547
[email protected]765b35502008-08-21 00:51:20548 // Base the navigation on where we are now...
549 int current_index = GetCurrentEntryIndex();
550
[email protected]cbab76d2008-10-13 22:42:47551 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20552
[email protected]cbab76d2008-10-13 22:42:47553 pending_entry_index_ = current_index;
554 // If there was a transient entry, we removed it making the current index
555 // the next page.
556 if (!transient)
557 pending_entry_index_++;
558
[email protected]022af742011-12-28 18:37:25559 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21560 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51561 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21562 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16563 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20564}
565
[email protected]d202a7c2012-01-04 07:53:47566void NavigationControllerImpl::GoToIndex(int index) {
[email protected]765b35502008-08-21 00:51:20567 if (index < 0 || index >= static_cast<int>(entries_.size())) {
568 NOTREACHED();
569 return;
570 }
571
[email protected]cbab76d2008-10-13 22:42:47572 if (transient_entry_index_ != -1) {
573 if (index == transient_entry_index_) {
574 // Nothing to do when navigating to the transient.
575 return;
576 }
577 if (index > transient_entry_index_) {
578 // Removing the transient is goint to shift all entries by 1.
579 index--;
580 }
581 }
582
583 DiscardNonCommittedEntries();
[email protected]765b35502008-08-21 00:51:20584
585 pending_entry_index_ = index;
[email protected]022af742011-12-28 18:37:25586 entries_[pending_entry_index_]->SetTransitionType(
[email protected]8ff00d72012-10-23 19:12:21587 PageTransitionFromInt(
[email protected]36fc0392011-12-25 03:59:51588 entries_[pending_entry_index_]->GetTransitionType() |
[email protected]8ff00d72012-10-23 19:12:21589 PAGE_TRANSITION_FORWARD_BACK));
[email protected]1ccb3568d2010-02-19 10:51:16590 NavigateToPendingEntry(NO_RELOAD);
[email protected]765b35502008-08-21 00:51:20591}
592
[email protected]d202a7c2012-01-04 07:53:47593void NavigationControllerImpl::GoToOffset(int offset) {
[email protected]9ba14052012-06-22 23:50:03594 if (!CanGoToOffset(offset))
[email protected]765b35502008-08-21 00:51:20595 return;
596
[email protected]9ba14052012-06-22 23:50:03597 GoToIndex(GetIndexForOffset(offset));
[email protected]765b35502008-08-21 00:51:20598}
599
[email protected]41374f12013-07-24 02:49:28600bool NavigationControllerImpl::RemoveEntryAtIndex(int index) {
601 if (index == last_committed_entry_index_ ||
602 index == pending_entry_index_)
603 return false;
[email protected]6a13a6c2011-12-20 21:47:12604
[email protected]43032342011-03-21 14:10:31605 RemoveEntryAtIndexInternal(index);
[email protected]41374f12013-07-24 02:49:28606 return true;
[email protected]cbab76d2008-10-13 22:42:47607}
608
[email protected]d202a7c2012-01-04 07:53:47609void NavigationControllerImpl::UpdateVirtualURLToURL(
[email protected]10f417c52011-12-28 21:04:23610 NavigationEntryImpl* entry, const GURL& new_url) {
[email protected]38178a42009-12-17 18:58:32611 GURL new_virtual_url(new_url);
[email protected]825b1662012-03-12 19:07:31612 if (BrowserURLHandlerImpl::GetInstance()->ReverseURLRewrite(
[email protected]36fc0392011-12-25 03:59:51613 &new_virtual_url, entry->GetVirtualURL(), browser_context_)) {
614 entry->SetVirtualURL(new_virtual_url);
[email protected]38178a42009-12-17 18:58:32615 }
616}
617
[email protected]d202a7c2012-01-04 07:53:47618void NavigationControllerImpl::LoadURL(
[email protected]6c6b02d2011-09-02 03:36:47619 const GURL& url,
[email protected]8ff00d72012-10-23 19:12:21620 const Referrer& referrer,
621 PageTransition transition,
[email protected]6c6b02d2011-09-02 03:36:47622 const std::string& extra_headers) {
[email protected]cf002332012-08-14 19:17:47623 LoadURLParams params(url);
624 params.referrer = referrer;
625 params.transition_type = transition;
626 params.extra_headers = extra_headers;
627 LoadURLWithParams(params);
628}
629
630void NavigationControllerImpl::LoadURLWithParams(const LoadURLParams& params) {
[email protected]e11f0e92013-06-12 15:12:03631 TRACE_EVENT0("browser", "NavigationControllerImpl::LoadURLWithParams");
[email protected]8ff00d72012-10-23 19:12:21632 if (HandleDebugURL(params.url, params.transition_type))
[email protected]8bf1048012012-02-08 01:22:18633 return;
634
[email protected]cf002332012-08-14 19:17:47635 // Checks based on params.load_type.
636 switch (params.load_type) {
637 case LOAD_TYPE_DEFAULT:
638 break;
639 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
[email protected]e9a82042013-09-15 03:38:29640 if (!params.url.SchemeIs(kHttpScheme) &&
[email protected]4654bfe2013-08-26 03:36:58641 !params.url.SchemeIs(kHttpsScheme)) {
[email protected]cf002332012-08-14 19:17:47642 NOTREACHED() << "Http post load must use http(s) scheme.";
643 return;
644 }
645 break;
646 case LOAD_TYPE_DATA:
647 if (!params.url.SchemeIs(chrome::kDataScheme)) {
648 NOTREACHED() << "Data load must use data scheme.";
649 return;
650 }
651 break;
652 default:
653 NOTREACHED();
654 break;
655 };
[email protected]e47ae9472011-10-13 19:48:34656
[email protected]e47ae9472011-10-13 19:48:34657 // The user initiated a load, we don't need to reload anymore.
658 needs_reload_ = false;
659
[email protected]cf002332012-08-14 19:17:47660 bool override = false;
661 switch (params.override_user_agent) {
662 case UA_OVERRIDE_INHERIT:
663 override = ShouldKeepOverride(GetLastCommittedEntry());
664 break;
665 case UA_OVERRIDE_TRUE:
666 override = true;
667 break;
668 case UA_OVERRIDE_FALSE:
669 override = false;
670 break;
671 default:
672 NOTREACHED();
673 break;
[email protected]d1ef81d2012-07-24 11:39:36674 }
675
[email protected]d1ef81d2012-07-24 11:39:36676 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry(
677 CreateNavigationEntry(
[email protected]cf002332012-08-14 19:17:47678 params.url,
679 params.referrer,
680 params.transition_type,
681 params.is_renderer_initiated,
682 params.extra_headers,
[email protected]d1ef81d2012-07-24 11:39:36683 browser_context_));
[email protected]866fa2cc2013-07-22 22:19:52684 if (params.should_replace_current_entry)
[email protected]e2caa032012-11-15 23:29:18685 entry->set_should_replace_entry(true);
[email protected]60d6cca2013-04-30 08:47:13686 entry->set_should_clear_history_list(params.should_clear_history_list);
[email protected]cf002332012-08-14 19:17:47687 entry->SetIsOverridingUserAgent(override);
688 entry->set_transferred_global_request_id(
689 params.transferred_global_request_id);
[email protected]d2494ff2013-02-20 08:22:37690 entry->SetFrameToNavigate(params.frame_name);
[email protected]d1ef81d2012-07-24 11:39:36691
[email protected]cf002332012-08-14 19:17:47692 switch (params.load_type) {
693 case LOAD_TYPE_DEFAULT:
694 break;
695 case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
696 entry->SetHasPostData(true);
697 entry->SetBrowserInitiatedPostData(
[email protected]fc72bb12013-06-02 21:13:46698 params.browser_initiated_post_data.get());
[email protected]cf002332012-08-14 19:17:47699 break;
700 case LOAD_TYPE_DATA:
701 entry->SetBaseURLForDataURL(params.base_url_for_data_url);
702 entry->SetVirtualURL(params.virtual_url_for_data_url);
[email protected]951a64832012-10-11 16:26:37703 entry->SetCanLoadLocalResources(params.can_load_local_resources);
[email protected]cf002332012-08-14 19:17:47704 break;
705 default:
706 NOTREACHED();
707 break;
708 };
[email protected]132e281a2012-07-31 18:32:44709
710 LoadEntry(entry);
711}
712
[email protected]d202a7c2012-01-04 07:53:47713bool NavigationControllerImpl::RendererDidNavigate(
[email protected]e9ba4472008-09-14 15:42:43714 const ViewHostMsg_FrameNavigate_Params& params,
[email protected]8ff00d72012-10-23 19:12:21715 LoadCommittedDetails* details) {
[email protected]cd2e15742013-03-08 04:08:31716 is_initial_navigation_ = false;
717
[email protected]0e8db942008-09-24 21:21:48718 // Save the previous state before we clobber it.
719 if (GetLastCommittedEntry()) {
[email protected]36fc0392011-12-25 03:59:51720 details->previous_url = GetLastCommittedEntry()->GetURL();
[email protected]a26023822011-12-29 00:23:55721 details->previous_entry_index = GetLastCommittedEntryIndex();
[email protected]0e8db942008-09-24 21:21:48722 } else {
723 details->previous_url = GURL();
724 details->previous_entry_index = -1;
725 }
[email protected]ecd9d8702008-08-28 22:10:17726
[email protected]77362eb2011-08-01 17:18:38727 // If we have a pending entry at this point, it should have a SiteInstance.
728 // Restored entries start out with a null SiteInstance, but we should have
729 // assigned one in NavigateToPendingEntry.
730 DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance());
[email protected]e9ba4472008-09-14 15:42:43731
[email protected]bcd904482012-02-01 01:54:22732 // If we are doing a cross-site reload, we need to replace the existing
733 // navigation entry, not add another entry to the history. This has the side
734 // effect of removing forward browsing history, if such existed.
[email protected]e2caa032012-11-15 23:29:18735 // Or if we are doing a cross-site redirect navigation,
736 // we will do a similar thing.
[email protected]4ac5fbe2012-09-01 02:19:59737 details->did_replace_entry =
[email protected]e2caa032012-11-15 23:29:18738 pending_entry_ && pending_entry_->should_replace_entry();
[email protected]bcd904482012-02-01 01:54:22739
[email protected]e9ba4472008-09-14 15:42:43740 // Do navigation-type specific actions. These will make and commit an entry.
[email protected]0e8db942008-09-24 21:21:48741 details->type = ClassifyNavigation(params);
[email protected]4bf3522c2010-08-19 21:00:20742
[email protected]b9d4dfdc2013-08-08 00:25:12743 // is_in_page must be computed before the entry gets committed.
744 details->is_in_page = IsURLInPageNavigation(
745 params.url, params.was_within_same_page, details->type);
746
[email protected]0e8db942008-09-24 21:21:48747 switch (details->type) {
[email protected]8ff00d72012-10-23 19:12:21748 case NAVIGATION_TYPE_NEW_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59749 RendererDidNavigateToNewPage(params, details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43750 break;
[email protected]8ff00d72012-10-23 19:12:21751 case NAVIGATION_TYPE_EXISTING_PAGE:
[email protected]e9ba4472008-09-14 15:42:43752 RendererDidNavigateToExistingPage(params);
753 break;
[email protected]8ff00d72012-10-23 19:12:21754 case NAVIGATION_TYPE_SAME_PAGE:
[email protected]e9ba4472008-09-14 15:42:43755 RendererDidNavigateToSamePage(params);
756 break;
[email protected]8ff00d72012-10-23 19:12:21757 case NAVIGATION_TYPE_IN_PAGE:
[email protected]4ac5fbe2012-09-01 02:19:59758 RendererDidNavigateInPage(params, &details->did_replace_entry);
[email protected]e9ba4472008-09-14 15:42:43759 break;
[email protected]8ff00d72012-10-23 19:12:21760 case NAVIGATION_TYPE_NEW_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43761 RendererDidNavigateNewSubframe(params);
762 break;
[email protected]8ff00d72012-10-23 19:12:21763 case NAVIGATION_TYPE_AUTO_SUBFRAME:
[email protected]e9ba4472008-09-14 15:42:43764 if (!RendererDidNavigateAutoSubframe(params))
765 return false;
766 break;
[email protected]8ff00d72012-10-23 19:12:21767 case NAVIGATION_TYPE_NAV_IGNORE:
[email protected]20d1c992011-04-12 21:17:49768 // If a pending navigation was in progress, this canceled it. We should
769 // discard it and make sure it is removed from the URL bar. After that,
770 // there is nothing we can do with this navigation, so we just return to
[email protected]e9ba4472008-09-14 15:42:43771 // the caller that nothing has happened.
[email protected]20d1c992011-04-12 21:17:49772 if (pending_entry_) {
773 DiscardNonCommittedEntries();
[email protected]8ff00d72012-10-23 19:12:21774 web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
[email protected]20d1c992011-04-12 21:17:49775 }
[email protected]e9ba4472008-09-14 15:42:43776 return false;
777 default:
778 NOTREACHED();
[email protected]765b35502008-08-21 00:51:20779 }
780
[email protected]688aa65c62012-09-28 04:32:22781 // At this point, we know that the navigation has just completed, so
782 // record the time.
783 //
784 // TODO(akalin): Use "sane time" as described in
785 // http://www.chromium.org/developers/design-documents/sane-time .
[email protected]c5b88d82012-10-06 17:03:33786 base::Time timestamp =
787 time_smoother_.GetSmoothedTime(get_timestamp_callback_.Run());
788 DVLOG(1) << "Navigation finished at (smoothed) timestamp "
[email protected]688aa65c62012-09-28 04:32:22789 << timestamp.ToInternalValue();
790
[email protected]f233e4232013-02-23 00:55:14791 // We should not have a pending entry anymore. Clear it again in case any
792 // error cases above forgot to do so.
793 DiscardNonCommittedEntriesInternal();
794
[email protected]e9ba4472008-09-14 15:42:43795 // All committed entries should have nonempty content state so WebKit doesn't
796 // get confused when we go back to them (see the function for details).
[email protected]691aa2f2013-05-28 22:52:04797 DCHECK(params.page_state.IsValid());
[email protected]10f417c52011-12-28 21:04:23798 NavigationEntryImpl* active_entry =
[email protected]f233e4232013-02-23 00:55:14799 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]688aa65c62012-09-28 04:32:22800 active_entry->SetTimestamp(timestamp);
[email protected]f49737b32013-08-28 07:51:44801 active_entry->SetHttpStatusCode(params.http_status_code);
[email protected]691aa2f2013-05-28 22:52:04802 active_entry->SetPageState(params.page_state);
[email protected]132e281a2012-07-31 18:32:44803 // No longer needed since content state will hold the post data if any.
804 active_entry->SetBrowserInitiatedPostData(NULL);
805
[email protected]e47ae9472011-10-13 19:48:34806 // Once committed, we do not need to track if the entry was initiated by
807 // the renderer.
808 active_entry->set_is_renderer_initiated(false);
809
[email protected]60d6cca2013-04-30 08:47:13810 // Once committed, we no longer need to track whether the session history was
811 // cleared. Navigating to this entry again shouldn't clear it again.
812 active_entry->set_should_clear_history_list(false);
813
[email protected]49bd30e62011-03-22 20:12:59814 // The active entry's SiteInstance should match our SiteInstance.
[email protected]f233e4232013-02-23 00:55:14815 CHECK(active_entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]49bd30e62011-03-22 20:12:59816
[email protected]b26de072013-02-23 02:33:44817 // Remember the bindings the renderer process has at this point, so that
818 // we do not grant this entry additional bindings if we come back to it.
819 active_entry->SetBindings(
820 web_contents_->GetRenderViewHost()->GetEnabledBindings());
821
[email protected]e9ba4472008-09-14 15:42:43822 // Now prep the rest of the details for the notification and broadcast.
[email protected]0f38dc4552011-02-25 11:24:00823 details->entry = active_entry;
[email protected]2905f742011-10-13 03:51:58824 details->is_main_frame =
[email protected]8ff00d72012-10-23 19:12:21825 PageTransitionIsMainFrame(params.transition);
[email protected]f072d2ce2008-09-17 17:16:24826 details->serialized_security_info = params.security_info;
[email protected]2e39d2e2009-02-19 18:41:31827 details->http_status_code = params.http_status_code;
[email protected]93f230e02011-06-01 14:40:00828 NotifyNavigationEntryCommitted(details);
initial.commit09911bf2008-07-26 23:55:29829
[email protected]e9ba4472008-09-14 15:42:43830 return true;
initial.commit09911bf2008-07-26 23:55:29831}
832
[email protected]8ff00d72012-10-23 19:12:21833NavigationType NavigationControllerImpl::ClassifyNavigation(
[email protected]e9ba4472008-09-14 15:42:43834 const ViewHostMsg_FrameNavigate_Params& params) const {
[email protected]e9ba4472008-09-14 15:42:43835 if (params.page_id == -1) {
[email protected]eef9de32009-09-23 17:19:46836 // The renderer generates the page IDs, and so if it gives us the invalid
837 // page ID (-1) we know it didn't actually navigate. This happens in a few
838 // cases:
839 //
840 // - If a page makes a popup navigated to about blank, and then writes
841 // stuff like a subframe navigated to a real page. We'll get the commit
842 // for the subframe, but there won't be any commit for the outer page.
843 //
844 // - We were also getting these for failed loads (for example, bug 21849).
845 // The guess is that we get a "load commit" for the alternate error page,
846 // but that doesn't affect the page ID, so we get the "old" one, which
847 // could be invalid. This can also happen for a cross-site transition
848 // that causes us to swap processes. Then the error page load will be in
849 // a new process with no page IDs ever assigned (and hence a -1 value),
850 // yet the navigation controller still might have previous pages in its
851 // list.
852 //
853 // In these cases, there's nothing we can do with them, so ignore.
[email protected]8ff00d72012-10-23 19:12:21854 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43855 }
856
[email protected]2db9bd72012-04-13 20:20:56857 if (params.page_id > web_contents_->GetMaxPageID()) {
[email protected]e9ba4472008-09-14 15:42:43858 // Greater page IDs than we've ever seen before are new pages. We may or may
859 // not have a pending entry for the page, and this may or may not be the
860 // main frame.
[email protected]8ff00d72012-10-23 19:12:21861 if (PageTransitionIsMainFrame(params.transition))
862 return NAVIGATION_TYPE_NEW_PAGE;
[email protected]4c27ba82008-09-24 16:49:09863
864 // When this is a new subframe navigation, we should have a committed page
865 // for which it's a suframe in. This may not be the case when an iframe is
866 // navigated on a popup navigated to about:blank (the iframe would be
867 // written into the popup by script on the main page). For these cases,
868 // there isn't any navigation stuff we can do, so just ignore it.
869 if (!GetLastCommittedEntry())
[email protected]8ff00d72012-10-23 19:12:21870 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]4c27ba82008-09-24 16:49:09871
872 // Valid subframe navigation.
[email protected]8ff00d72012-10-23 19:12:21873 return NAVIGATION_TYPE_NEW_SUBFRAME;
[email protected]e9ba4472008-09-14 15:42:43874 }
875
[email protected]60d6cca2013-04-30 08:47:13876 // We only clear the session history when navigating to a new page.
877 DCHECK(!params.history_list_was_cleared);
878
[email protected]e9ba4472008-09-14 15:42:43879 // Now we know that the notification is for an existing page. Find that entry.
880 int existing_entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:56881 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:43882 params.page_id);
883 if (existing_entry_index == -1) {
884 // The page was not found. It could have been pruned because of the limit on
885 // back/forward entries (not likely since we'll usually tell it to navigate
886 // to such entries). It could also mean that the renderer is smoking crack.
887 NOTREACHED();
[email protected]485e8232011-07-24 18:03:46888
889 // Because the unknown entry has committed, we risk showing the wrong URL in
890 // release builds. Instead, we'll kill the renderer process to be safe.
891 LOG(ERROR) << "terminating renderer for bad navigation: " << params.url;
[email protected]8ff00d72012-10-23 19:12:21892 RecordAction(UserMetricsAction("BadMessageTerminate_NC"));
[email protected]b69934e2011-10-29 02:51:52893
[email protected]7ec6f382011-11-11 01:28:17894 // Temporary code so we can get more information. Format:
[email protected]8c380582011-12-02 03:16:10895 // http://url/foo.html#page1#max3#frame1#ids:2_Nx,1_1x,3_2
896 std::string temp = params.url.spec();
[email protected]7ec6f382011-11-11 01:28:17897 temp.append("#page");
[email protected]b69934e2011-10-29 02:51:52898 temp.append(base::IntToString(params.page_id));
[email protected]7ec6f382011-11-11 01:28:17899 temp.append("#max");
[email protected]2db9bd72012-04-13 20:20:56900 temp.append(base::IntToString(web_contents_->GetMaxPageID()));
[email protected]7ec6f382011-11-11 01:28:17901 temp.append("#frame");
902 temp.append(base::IntToString(params.frame_id));
903 temp.append("#ids");
904 for (int i = 0; i < static_cast<int>(entries_.size()); ++i) {
[email protected]8c380582011-12-02 03:16:10905 // Append entry metadata (e.g., 3_7x):
906 // 3: page_id
907 // 7: SiteInstance ID, or N for null
908 // x: appended if not from the current SiteInstance
[email protected]36fc0392011-12-25 03:59:51909 temp.append(base::IntToString(entries_[i]->GetPageID()));
[email protected]8c380582011-12-02 03:16:10910 temp.append("_");
911 if (entries_[i]->site_instance())
[email protected]b6583592012-01-25 19:52:33912 temp.append(base::IntToString(entries_[i]->site_instance()->GetId()));
[email protected]7ec6f382011-11-11 01:28:17913 else
[email protected]8c380582011-12-02 03:16:10914 temp.append("N");
[email protected]2db9bd72012-04-13 20:20:56915 if (entries_[i]->site_instance() != web_contents_->GetSiteInstance())
[email protected]7ec6f382011-11-11 01:28:17916 temp.append("x");
917 temp.append(",");
[email protected]b69934e2011-10-29 02:51:52918 }
919 GURL url(temp);
[email protected]9f76c1e2012-03-05 15:15:58920 static_cast<RenderViewHostImpl*>(
[email protected]2db9bd72012-04-13 20:20:56921 web_contents_->GetRenderViewHost())->Send(
[email protected]9f76c1e2012-03-05 15:15:58922 new ViewMsg_TempCrashWithData(url));
[email protected]8ff00d72012-10-23 19:12:21923 return NAVIGATION_TYPE_NAV_IGNORE;
[email protected]e9ba4472008-09-14 15:42:43924 }
[email protected]10f417c52011-12-28 21:04:23925 NavigationEntryImpl* existing_entry = entries_[existing_entry_index].get();
[email protected]e9ba4472008-09-14 15:42:43926
[email protected]8ff00d72012-10-23 19:12:21927 if (!PageTransitionIsMainFrame(params.transition)) {
[email protected]e6035c22010-05-25 16:15:52928 // All manual subframes would get new IDs and were handled above, so we
929 // know this is auto. Since the current page was found in the navigation
930 // entry list, we're guaranteed to have a last committed entry.
931 DCHECK(GetLastCommittedEntry());
[email protected]8ff00d72012-10-23 19:12:21932 return NAVIGATION_TYPE_AUTO_SUBFRAME;
[email protected]e6035c22010-05-25 16:15:52933 }
934
935 // Anything below here we know is a main frame navigation.
[email protected]e9ba4472008-09-14 15:42:43936 if (pending_entry_ &&
[email protected]59167c22013-06-03 18:07:32937 !pending_entry_->is_renderer_initiated() &&
[email protected]e9ba4472008-09-14 15:42:43938 existing_entry != pending_entry_ &&
[email protected]36fc0392011-12-25 03:59:51939 pending_entry_->GetPageID() == -1 &&
[email protected]230c0012011-04-08 16:27:24940 existing_entry == GetLastCommittedEntry()) {
[email protected]e9ba4472008-09-14 15:42:43941 // In this case, we have a pending entry for a URL but WebCore didn't do a
942 // new navigation. This happens when you press enter in the URL bar to
943 // reload. We will create a pending entry, but WebKit will convert it to
944 // a reload since it's the same page and not create a new entry for it
945 // (the user doesn't want to have a new back/forward entry when they do
[email protected]230c0012011-04-08 16:27:24946 // this). If this matches the last committed entry, we want to just ignore
947 // the pending entry and go back to where we were (the "existing entry").
[email protected]8ff00d72012-10-23 19:12:21948 return NAVIGATION_TYPE_SAME_PAGE;
[email protected]e9ba4472008-09-14 15:42:43949 }
950
[email protected]fc60f222008-12-18 17:36:54951 // Any toplevel navigations with the same base (minus the reference fragment)
952 // are in-page navigations. We weeded out subframe navigations above. Most of
953 // the time this doesn't matter since WebKit doesn't tell us about subframe
954 // navigations that don't actually navigate, but it can happen when there is
955 // an encoding override (it always sends a navigation request).
[email protected]4ac5fbe2012-09-01 02:19:59956 if (AreURLsInPageNavigation(existing_entry->GetURL(), params.url,
[email protected]b9d4dfdc2013-08-08 00:25:12957 params.was_within_same_page,
958 NAVIGATION_TYPE_UNKNOWN)) {
[email protected]8ff00d72012-10-23 19:12:21959 return NAVIGATION_TYPE_IN_PAGE;
[email protected]4ac5fbe2012-09-01 02:19:59960 }
[email protected]fc60f222008-12-18 17:36:54961
[email protected]e9ba4472008-09-14 15:42:43962 // Since we weeded out "new" navigations above, we know this is an existing
[email protected]4c27ba82008-09-24 16:49:09963 // (back/forward) navigation.
[email protected]8ff00d72012-10-23 19:12:21964 return NAVIGATION_TYPE_EXISTING_PAGE;
[email protected]e9ba4472008-09-14 15:42:43965}
966
[email protected]d202a7c2012-01-04 07:53:47967bool NavigationControllerImpl::IsRedirect(
[email protected]09b8f82f2009-06-16 20:22:11968 const ViewHostMsg_FrameNavigate_Params& params) {
969 // For main frame transition, we judge by params.transition.
970 // Otherwise, by params.redirects.
[email protected]8ff00d72012-10-23 19:12:21971 if (PageTransitionIsMainFrame(params.transition)) {
972 return PageTransitionIsRedirect(params.transition);
[email protected]09b8f82f2009-06-16 20:22:11973 }
974 return params.redirects.size() > 1;
975}
976
[email protected]d202a7c2012-01-04 07:53:47977void NavigationControllerImpl::RendererDidNavigateToNewPage(
[email protected]e6fec472013-05-14 05:29:02978 const ViewHostMsg_FrameNavigate_Params& params, bool replace_entry) {
[email protected]10f417c52011-12-28 21:04:23979 NavigationEntryImpl* new_entry;
[email protected]f1eb87a2011-05-06 17:49:41980 bool update_virtual_url;
[email protected]6dd86ab2013-02-27 00:30:34981 // Only make a copy of the pending entry if it is appropriate for the new page
982 // that was just loaded. We verify this at a coarse grain by checking that
983 // the SiteInstance hasn't been assigned to something else.
984 if (pending_entry_ &&
985 (!pending_entry_->site_instance() ||
986 pending_entry_->site_instance() == web_contents_->GetSiteInstance())) {
[email protected]10f417c52011-12-28 21:04:23987 new_entry = new NavigationEntryImpl(*pending_entry_);
[email protected]e9ba4472008-09-14 15:42:43988
989 // Don't use the page type from the pending entry. Some interstitial page
990 // may have set the type to interstitial. Once we commit, however, the page
991 // type must always be normal.
[email protected]8ff00d72012-10-23 19:12:21992 new_entry->set_page_type(PAGE_TYPE_NORMAL);
[email protected]f1eb87a2011-05-06 17:49:41993 update_virtual_url = new_entry->update_virtual_url_with_url();
[email protected]e9ba4472008-09-14 15:42:43994 } else {
[email protected]10f417c52011-12-28 21:04:23995 new_entry = new NavigationEntryImpl;
[email protected]f8f93eb2012-09-25 03:06:24996
997 // Find out whether the new entry needs to update its virtual URL on URL
998 // change and set up the entry accordingly. This is needed to correctly
999 // update the virtual URL when replaceState is called after a pushState.
1000 GURL url = params.url;
1001 bool needs_update = false;
1002 BrowserURLHandlerImpl::GetInstance()->RewriteURLIfNecessary(
1003 &url, browser_context_, &needs_update);
1004 new_entry->set_update_virtual_url_with_url(needs_update);
1005
[email protected]f1eb87a2011-05-06 17:49:411006 // When navigating to a new page, give the browser URL handler a chance to
1007 // update the virtual URL based on the new URL. For example, this is needed
1008 // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
1009 // the URL.
[email protected]f8f93eb2012-09-25 03:06:241010 update_virtual_url = needs_update;
[email protected]e9ba4472008-09-14 15:42:431011 }
1012
[email protected]ad23a092011-12-28 07:02:041013 new_entry->SetURL(params.url);
[email protected]f1eb87a2011-05-06 17:49:411014 if (update_virtual_url)
[email protected]38178a42009-12-17 18:58:321015 UpdateVirtualURLToURL(new_entry, params.url);
[email protected]022af742011-12-28 18:37:251016 new_entry->SetReferrer(params.referrer);
[email protected]36fc0392011-12-25 03:59:511017 new_entry->SetPageID(params.page_id);
[email protected]022af742011-12-28 18:37:251018 new_entry->SetTransitionType(params.transition);
[email protected]b6583592012-01-25 19:52:331019 new_entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:561020 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]36fc0392011-12-25 03:59:511021 new_entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051022 new_entry->SetPostID(params.post_id);
[email protected]7c16976c2012-08-04 02:38:231023 new_entry->SetOriginalRequestURL(params.original_request_url);
[email protected]bf70edce2012-06-20 22:32:221024 new_entry->SetIsOverridingUserAgent(params.is_overriding_user_agent);
[email protected]e9ba4472008-09-14 15:42:431025
[email protected]60d6cca2013-04-30 08:47:131026 DCHECK(!params.history_list_was_cleared || !replace_entry);
1027 // The browser requested to clear the session history when it initiated the
1028 // navigation. Now we know that the renderer has updated its state accordingly
1029 // and it is safe to also clear the browser side history.
1030 if (params.history_list_was_cleared) {
1031 DiscardNonCommittedEntriesInternal();
1032 entries_.clear();
1033 last_committed_entry_index_ = -1;
1034 }
1035
[email protected]4ac5fbe2012-09-01 02:19:591036 InsertOrReplaceEntry(new_entry, replace_entry);
[email protected]e9ba4472008-09-14 15:42:431037}
1038
[email protected]d202a7c2012-01-04 07:53:471039void NavigationControllerImpl::RendererDidNavigateToExistingPage(
[email protected]e9ba4472008-09-14 15:42:431040 const ViewHostMsg_FrameNavigate_Params& params) {
1041 // We should only get here for main frame navigations.
[email protected]8ff00d72012-10-23 19:12:211042 DCHECK(PageTransitionIsMainFrame(params.transition));
[email protected]e9ba4472008-09-14 15:42:431043
1044 // This is a back/forward navigation. The existing page for the ID is
[email protected]4c27ba82008-09-24 16:49:091045 // guaranteed to exist by ClassifyNavigation, and we just need to update it
1046 // with new information from the renderer.
[email protected]2db9bd72012-04-13 20:20:561047 int entry_index = GetEntryIndexWithPageID(web_contents_->GetSiteInstance(),
[email protected]7f0005a2009-04-15 03:25:111048 params.page_id);
[email protected]e9ba4472008-09-14 15:42:431049 DCHECK(entry_index >= 0 &&
1050 entry_index < static_cast<int>(entries_.size()));
[email protected]10f417c52011-12-28 21:04:231051 NavigationEntryImpl* entry = entries_[entry_index].get();
[email protected]e9ba4472008-09-14 15:42:431052
[email protected]5ccd4dc2012-10-24 02:28:141053 // The URL may have changed due to redirects.
[email protected]ad23a092011-12-28 07:02:041054 entry->SetURL(params.url);
[email protected]38178a42009-12-17 18:58:321055 if (entry->update_virtual_url_with_url())
1056 UpdateVirtualURLToURL(entry, params.url);
[email protected]5ccd4dc2012-10-24 02:28:141057
1058 // The redirected to page should not inherit the favicon from the previous
1059 // page.
1060 if (PageTransitionIsRedirect(params.transition))
[email protected]91a4ff82012-10-29 20:29:481061 entry->GetFavicon() = FaviconStatus();
[email protected]5ccd4dc2012-10-24 02:28:141062
1063 // The site instance will normally be the same except during session restore,
1064 // when no site instance will be assigned.
[email protected]e9ba4472008-09-14 15:42:431065 DCHECK(entry->site_instance() == NULL ||
[email protected]2db9bd72012-04-13 20:20:561066 entry->site_instance() == web_contents_->GetSiteInstance());
[email protected]b6583592012-01-25 19:52:331067 entry->set_site_instance(
[email protected]2db9bd72012-04-13 20:20:561068 static_cast<SiteInstanceImpl*>(web_contents_->GetSiteInstance()));
[email protected]e9ba4472008-09-14 15:42:431069
[email protected]36fc0392011-12-25 03:59:511070 entry->SetHasPostData(params.is_post);
[email protected]86cd9472012-02-03 19:51:051071 entry->SetPostID(params.post_id);
[email protected]d5a49e52010-01-08 03:01:411072
[email protected]e9ba4472008-09-14 15:42:431073 // The entry we found in the list might be pending if the user hit
1074 // back/forward/reload. This load should commit it (since it's already in the
[email protected]49bd30e62011-03-22 20:12:591075 // list, we can just discard the pending pointer). We should also discard the
1076 // pending entry if it corresponds to a different navigation, since that one
1077 // is now likely canceled. If it is not canceled, we will treat it as a new
1078 // navigation when it arrives, which is also ok.
[email protected]e9ba4472008-09-14 15:42:431079 //
1080 // Note that we need to use the "internal" version since we don't want to
1081 // actually change any other state, just kill the pointer.
[email protected]6eebaab2012-11-15 04:39:491082 DiscardNonCommittedEntriesInternal();
[email protected]40bcc302009-03-02 20:50:391083
[email protected]80858db52009-10-15 00:35:181084 // If a transient entry was removed, the indices might have changed, so we
1085 // have to query the entry index again.
1086 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561087 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431088}
1089
[email protected]d202a7c2012-01-04 07:53:471090void NavigationControllerImpl::RendererDidNavigateToSamePage(
[email protected]e9ba4472008-09-14 15:42:431091 const ViewHostMsg_FrameNavigate_Params& params) {
1092 // This mode implies we have a pending entry that's the same as an existing
[email protected]4c27ba82008-09-24 16:49:091093 // entry for this page ID. This entry is guaranteed to exist by
1094 // ClassifyNavigation. All we need to do is update the existing entry.
[email protected]10f417c52011-12-28 21:04:231095 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561096 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431097
1098 // We assign the entry's unique ID to be that of the new one. Since this is
1099 // always the result of a user action, we want to dismiss infobars, etc. like
1100 // a regular user-initiated navigation.
[email protected]36fc0392011-12-25 03:59:511101 existing_entry->set_unique_id(pending_entry_->GetUniqueID());
[email protected]e9ba4472008-09-14 15:42:431102
[email protected]a0e69262009-06-03 19:08:481103 // The URL may have changed due to redirects.
[email protected]38178a42009-12-17 18:58:321104 if (existing_entry->update_virtual_url_with_url())
1105 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ad23a092011-12-28 07:02:041106 existing_entry->SetURL(params.url);
[email protected]a0e69262009-06-03 19:08:481107
[email protected]cbab76d2008-10-13 22:42:471108 DiscardNonCommittedEntries();
[email protected]e9ba4472008-09-14 15:42:431109}
1110
[email protected]d202a7c2012-01-04 07:53:471111void NavigationControllerImpl::RendererDidNavigateInPage(
[email protected]befd8d822009-07-01 04:51:471112 const ViewHostMsg_FrameNavigate_Params& params, bool* did_replace_entry) {
[email protected]8ff00d72012-10-23 19:12:211113 DCHECK(PageTransitionIsMainFrame(params.transition)) <<
[email protected]e9ba4472008-09-14 15:42:431114 "WebKit should only tell us about in-page navs for the main frame.";
1115 // We're guaranteed to have an entry for this one.
[email protected]10f417c52011-12-28 21:04:231116 NavigationEntryImpl* existing_entry = GetEntryWithPageID(
[email protected]2db9bd72012-04-13 20:20:561117 web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431118
1119 // Reference fragment navigation. We're guaranteed to have the last_committed
1120 // entry and it will be the same page as the new navigation (minus the
[email protected]d466b8a2011-07-15 21:48:031121 // reference fragments, of course). We'll update the URL of the existing
1122 // entry without pruning the forward history.
[email protected]ad23a092011-12-28 07:02:041123 existing_entry->SetURL(params.url);
[email protected]d466b8a2011-07-15 21:48:031124 if (existing_entry->update_virtual_url_with_url())
1125 UpdateVirtualURLToURL(existing_entry, params.url);
[email protected]ccbe04e2010-03-17 17:58:431126
1127 // This replaces the existing entry since the page ID didn't change.
1128 *did_replace_entry = true;
[email protected]d466b8a2011-07-15 21:48:031129
[email protected]6eebaab2012-11-15 04:39:491130 DiscardNonCommittedEntriesInternal();
[email protected]d466b8a2011-07-15 21:48:031131
1132 // If a transient entry was removed, the indices might have changed, so we
1133 // have to query the entry index again.
1134 last_committed_entry_index_ =
[email protected]2db9bd72012-04-13 20:20:561135 GetEntryIndexWithPageID(web_contents_->GetSiteInstance(), params.page_id);
[email protected]e9ba4472008-09-14 15:42:431136}
1137
[email protected]d202a7c2012-01-04 07:53:471138void NavigationControllerImpl::RendererDidNavigateNewSubframe(
[email protected]e9ba4472008-09-14 15:42:431139 const ViewHostMsg_FrameNavigate_Params& params) {
[email protected]026aac22013-07-10 02:09:111140 if (PageTransitionCoreTypeIs(params.transition,
1141 PAGE_TRANSITION_AUTO_SUBFRAME)) {
[email protected]09b8f82f2009-06-16 20:22:111142 // This is not user-initiated. Ignore.
[email protected]f233e4232013-02-23 00:55:141143 DiscardNonCommittedEntriesInternal();
[email protected]09b8f82f2009-06-16 20:22:111144 return;
1145 }
[email protected]09b8f82f2009-06-16 20:22:111146
[email protected]e9ba4472008-09-14 15:42:431147 // Manual subframe navigations just get the current entry cloned so the user
1148 // can go back or forward to it. The actual subframe information will be
1149 // stored in the page state for each of those entries. This happens out of
1150 // band with the actual navigations.
[email protected]4c27ba82008-09-24 16:49:091151 DCHECK(GetLastCommittedEntry()) << "ClassifyNavigation should guarantee "
1152 << "that a last committed entry exists.";
[email protected]10f417c52011-12-28 21:04:231153 NavigationEntryImpl* new_entry = new NavigationEntryImpl(
1154 *NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry()));
[email protected]36fc0392011-12-25 03:59:511155 new_entry->SetPageID(params.page_id);
[email protected]672eba292009-05-13 13:22:451156 InsertOrReplaceEntry(new_entry, false);
[email protected]e9ba4472008-09-14 15:42:431157}
1158
[email protected]d202a7c2012-01-04 07:53:471159bool NavigationControllerImpl::RendererDidNavigateAutoSubframe(
[email protected]e9ba4472008-09-14 15:42:431160 const ViewHostMsg_FrameNavigate_Params& params) {
1161 // We're guaranteed to have a previously committed entry, and we now need to
1162 // handle navigation inside of a subframe in it without creating a new entry.
1163 DCHECK(GetLastCommittedEntry());
1164
1165 // Handle the case where we're navigating back/forward to a previous subframe
1166 // navigation entry. This is case "2." in NAV_AUTO_SUBFRAME comment in the
1167 // header file. In case "1." this will be a NOP.
1168 int entry_index = GetEntryIndexWithPageID(
[email protected]2db9bd72012-04-13 20:20:561169 web_contents_->GetSiteInstance(),
[email protected]e9ba4472008-09-14 15:42:431170 params.page_id);
1171 if (entry_index < 0 ||
1172 entry_index >= static_cast<int>(entries_.size())) {
1173 NOTREACHED();
1174 return false;
1175 }
1176
1177 // Update the current navigation entry in case we're going back/forward.
1178 if (entry_index != last_committed_entry_index_) {
[email protected]e9ba4472008-09-14 15:42:431179 last_committed_entry_index_ = entry_index;
[email protected]f233e4232013-02-23 00:55:141180 DiscardNonCommittedEntriesInternal();
[email protected]e9ba4472008-09-14 15:42:431181 return true;
1182 }
[email protected]f233e4232013-02-23 00:55:141183
1184 // We do not need to discard the pending entry in this case, since we will
1185 // not generate commit notifications for this auto-subframe navigation.
[email protected]e9ba4472008-09-14 15:42:431186 return false;
1187}
1188
[email protected]d202a7c2012-01-04 07:53:471189int NavigationControllerImpl::GetIndexOfEntry(
[email protected]10f417c52011-12-28 21:04:231190 const NavigationEntryImpl* entry) const {
[email protected]765b35502008-08-21 00:51:201191 const NavigationEntries::const_iterator i(std::find(
1192 entries_.begin(),
1193 entries_.end(),
1194 entry));
1195 return (i == entries_.end()) ? -1 : static_cast<int>(i - entries_.begin());
1196}
1197
[email protected]ce760d742012-08-30 22:31:101198bool NavigationControllerImpl::IsURLInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121199 const GURL& url,
1200 bool renderer_says_in_page,
1201 NavigationType navigation_type) const {
[email protected]10f417c52011-12-28 21:04:231202 NavigationEntry* last_committed = GetLastCommittedEntry();
[email protected]ce760d742012-08-30 22:31:101203 return last_committed && AreURLsInPageNavigation(
[email protected]b9d4dfdc2013-08-08 00:25:121204 last_committed->GetURL(), url, renderer_says_in_page, navigation_type);
[email protected]e9ba4472008-09-14 15:42:431205}
1206
[email protected]d202a7c2012-01-04 07:53:471207void NavigationControllerImpl::CopyStateFrom(
[email protected]c5eed492012-01-04 17:07:501208 const NavigationController& temp) {
[email protected]d202a7c2012-01-04 07:53:471209 const NavigationControllerImpl& source =
1210 static_cast<const NavigationControllerImpl&>(temp);
[email protected]ce3fa3c2009-04-20 19:55:571211 // Verify that we look new.
[email protected]a26023822011-12-29 00:23:551212 DCHECK(GetEntryCount() == 0 && !GetPendingEntry());
[email protected]ce3fa3c2009-04-20 19:55:571213
[email protected]a26023822011-12-29 00:23:551214 if (source.GetEntryCount() == 0)
[email protected]ce3fa3c2009-04-20 19:55:571215 return; // Nothing new to do.
1216
1217 needs_reload_ = true;
[email protected]a26023822011-12-29 00:23:551218 InsertEntriesFrom(source, source.GetEntryCount());
[email protected]ce3fa3c2009-04-20 19:55:571219
[email protected]fdac6ade2013-07-20 01:06:301220 for (SessionStorageNamespaceMap::const_iterator it =
1221 source.session_storage_namespace_map_.begin();
1222 it != source.session_storage_namespace_map_.end();
1223 ++it) {
1224 SessionStorageNamespaceImpl* source_namespace =
1225 static_cast<SessionStorageNamespaceImpl*>(it->second.get());
1226 session_storage_namespace_map_[it->first] = source_namespace->Clone();
1227 }
[email protected]4e6419c2010-01-15 04:50:341228
[email protected]2ca1ea662012-10-04 02:26:361229 FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
[email protected]91854cd2012-01-10 19:43:571230
1231 // Copy the max page id map from the old tab to the new tab. This ensures
1232 // that new and existing navigations in the tab's current SiteInstances
1233 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561234 web_contents_->CopyMaxPageIDsFrom(source.web_contents());
[email protected]ce3fa3c2009-04-20 19:55:571235}
1236
[email protected]d202a7c2012-01-04 07:53:471237void NavigationControllerImpl::CopyStateFromAndPrune(
[email protected]c5eed492012-01-04 17:07:501238 NavigationController* temp) {
[email protected]474f8512013-05-31 22:31:161239 // It is up to callers to check the invariants before calling this.
1240 CHECK(CanPruneAllButVisible());
1241
[email protected]d202a7c2012-01-04 07:53:471242 NavigationControllerImpl* source =
1243 static_cast<NavigationControllerImpl*>(temp);
[email protected]9e1ad4b2011-08-14 16:49:191244 // The SiteInstance and page_id of the last committed entry needs to be
1245 // remembered at this point, in case there is only one committed entry
[email protected]91854cd2012-01-10 19:43:571246 // and it is pruned. We use a scoped_refptr to ensure the SiteInstance
1247 // can't be freed during this time period.
[email protected]10f417c52011-12-28 21:04:231248 NavigationEntryImpl* last_committed =
1249 NavigationEntryImpl::FromNavigationEntry(GetLastCommittedEntry());
[email protected]91854cd2012-01-10 19:43:571250 scoped_refptr<SiteInstance> site_instance(
[email protected]474f8512013-05-31 22:31:161251 last_committed->site_instance());
1252 int32 minimum_page_id = last_committed->GetPageID();
1253 int32 max_page_id =
1254 web_contents_->GetMaxPageIDForSiteInstance(site_instance.get());
[email protected]e1cd5452010-08-26 18:03:251255
1256 // Remove all the entries leaving the active entry.
[email protected]474f8512013-05-31 22:31:161257 PruneAllButVisibleInternal();
[email protected]e1cd5452010-08-26 18:03:251258
[email protected]474f8512013-05-31 22:31:161259 // We now have one entry, possibly with a new pending entry. Ensure that
1260 // adding the entries from source won't put us over the limit.
1261 DCHECK_EQ(1, GetEntryCount());
1262 source->PruneOldestEntryIfFull();
[email protected]944822b2012-03-02 20:57:251263
[email protected]47e020a2010-10-15 14:43:371264 // Insert the entries from source. Don't use source->GetCurrentEntryIndex as
[email protected]474f8512013-05-31 22:31:161265 // we don't want to copy over the transient entry. Ignore any pending entry,
1266 // since it has not committed in source.
1267 int max_source_index = source->last_committed_entry_index_;
[email protected]e1cd5452010-08-26 18:03:251268 if (max_source_index == -1)
[email protected]a26023822011-12-29 00:23:551269 max_source_index = source->GetEntryCount();
[email protected]e1cd5452010-08-26 18:03:251270 else
1271 max_source_index++;
[email protected]47e020a2010-10-15 14:43:371272 InsertEntriesFrom(*source, max_source_index);
[email protected]e1cd5452010-08-26 18:03:251273
1274 // Adjust indices such that the last entry and pending are at the end now.
[email protected]a26023822011-12-29 00:23:551275 last_committed_entry_index_ = GetEntryCount() - 1;
[email protected]796931a92011-08-10 01:32:141276
[email protected]2db9bd72012-04-13 20:20:561277 web_contents_->SetHistoryLengthAndPrune(site_instance.get(),
[email protected]9e1ad4b2011-08-14 16:49:191278 max_source_index,
1279 minimum_page_id);
[email protected]91854cd2012-01-10 19:43:571280
1281 // Copy the max page id map from the old tab to the new tab. This ensures
1282 // that new and existing navigations in the tab's current SiteInstances
1283 // are identified properly.
[email protected]2db9bd72012-04-13 20:20:561284 web_contents_->CopyMaxPageIDsFrom(source->web_contents());
[email protected]91854cd2012-01-10 19:43:571285
1286 // If there is a last committed entry, be sure to include it in the new
1287 // max page ID map.
1288 if (max_page_id > -1) {
[email protected]2db9bd72012-04-13 20:20:561289 web_contents_->UpdateMaxPageIDForSiteInstance(site_instance.get(),
[email protected]91854cd2012-01-10 19:43:571290 max_page_id);
1291 }
[email protected]e1cd5452010-08-26 18:03:251292}
1293
[email protected]474f8512013-05-31 22:31:161294bool NavigationControllerImpl::CanPruneAllButVisible() {
1295 // If there is no last committed entry, we cannot prune. Even if there is a
1296 // pending entry, it may not commit, leaving this WebContents blank, despite
1297 // possibly giving it new entries via CopyStateFromAndPrune.
1298 if (last_committed_entry_index_ == -1)
1299 return false;
[email protected]9350602e2013-02-26 23:27:441300
[email protected]474f8512013-05-31 22:31:161301 // We cannot prune if there is a pending entry at an existing entry index.
1302 // It may not commit, so we have to keep the last committed entry, and thus
1303 // there is no sensible place to keep the pending entry. It is ok to have
1304 // a new pending entry, which can optionally commit as a new navigation.
1305 if (pending_entry_index_ != -1)
1306 return false;
1307
1308 // We should not prune if we are currently showing a transient entry.
1309 if (transient_entry_index_ != -1)
1310 return false;
1311
1312 return true;
1313}
1314
1315void NavigationControllerImpl::PruneAllButVisible() {
1316 PruneAllButVisibleInternal();
1317
1318 // We should still have a last committed entry.
1319 DCHECK_NE(-1, last_committed_entry_index_);
[email protected]9350602e2013-02-26 23:27:441320
[email protected]9350602e2013-02-26 23:27:441321 // We pass 0 instead of GetEntryCount() for the history_length parameter of
1322 // SetHistoryLengthAndPrune, because it will create history_length additional
1323 // history entries.
1324 // TODO(jochen): This API is confusing and we should clean it up.
1325 // http://crbug.com/178491
[email protected]6286a3792013-10-09 04:03:271326 NavigationEntryImpl* entry =
1327 NavigationEntryImpl::FromNavigationEntry(GetVisibleEntry());
[email protected]9350602e2013-02-26 23:27:441328 web_contents_->SetHistoryLengthAndPrune(
1329 entry->site_instance(), 0, entry->GetPageID());
1330}
1331
[email protected]474f8512013-05-31 22:31:161332void NavigationControllerImpl::PruneAllButVisibleInternal() {
1333 // It is up to callers to check the invariants before calling this.
1334 CHECK(CanPruneAllButVisible());
[email protected]97b6c4f2010-09-27 19:31:261335
[email protected]474f8512013-05-31 22:31:161336 // Erase all entries but the last committed entry. There may still be a
1337 // new pending entry after this.
1338 entries_.erase(entries_.begin(),
1339 entries_.begin() + last_committed_entry_index_);
1340 entries_.erase(entries_.begin() + 1, entries_.end());
1341 last_committed_entry_index_ = 0;
[email protected]97b6c4f2010-09-27 19:31:261342}
1343
[email protected]15f46dc2013-01-24 05:40:241344void NavigationControllerImpl::ClearAllScreenshots() {
[email protected]1a3f5312013-04-26 21:00:101345 screenshot_manager_->ClearAllScreenshots();
[email protected]15f46dc2013-01-24 05:40:241346}
1347
[email protected]d1198fd2012-08-13 22:50:191348void NavigationControllerImpl::SetSessionStorageNamespace(
[email protected]fdac6ade2013-07-20 01:06:301349 const std::string& partition_id,
[email protected]8ff00d72012-10-23 19:12:211350 SessionStorageNamespace* session_storage_namespace) {
[email protected]d1198fd2012-08-13 22:50:191351 if (!session_storage_namespace)
1352 return;
1353
1354 // We can't overwrite an existing SessionStorage without violating spec.
1355 // Attempts to do so may give a tab access to another tab's session storage
1356 // so die hard on an error.
[email protected]fdac6ade2013-07-20 01:06:301357 bool successful_insert = session_storage_namespace_map_.insert(
1358 make_pair(partition_id,
1359 static_cast<SessionStorageNamespaceImpl*>(
1360 session_storage_namespace)))
1361 .second;
1362 CHECK(successful_insert) << "Cannot replace existing SessionStorageNamespace";
[email protected]d1198fd2012-08-13 22:50:191363}
1364
[email protected]d202a7c2012-01-04 07:53:471365void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
[email protected]71fde352011-12-29 03:29:561366 max_restored_page_id_ = max_id;
1367}
1368
[email protected]d202a7c2012-01-04 07:53:471369int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
[email protected]71fde352011-12-29 03:29:561370 return max_restored_page_id_;
[email protected]a26023822011-12-29 00:23:551371}
1372
1373SessionStorageNamespace*
[email protected]fdac6ade2013-07-20 01:06:301374NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
1375 std::string partition_id;
1376 if (instance) {
1377 // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
1378 // this if statement so |instance| must not be NULL.
1379 partition_id =
1380 GetContentClient()->browser()->GetStoragePartitionIdForSite(
1381 browser_context_, instance->GetSiteURL());
1382 }
[email protected]d1198fd2012-08-13 22:50:191383
[email protected]fdac6ade2013-07-20 01:06:301384 SessionStorageNamespaceMap::const_iterator it =
1385 session_storage_namespace_map_.find(partition_id);
1386 if (it != session_storage_namespace_map_.end())
1387 return it->second.get();
1388
1389 // Create one if no one has accessed session storage for this partition yet.
1390 //
1391 // TODO(ajwong): Should this use the |partition_id| directly rather than
1392 // re-lookup via |instance|? http://crbug.com/142685
1393 StoragePartition* partition =
1394 BrowserContext::GetStoragePartition(browser_context_, instance);
1395 SessionStorageNamespaceImpl* session_storage_namespace =
1396 new SessionStorageNamespaceImpl(
[email protected]5f2aa722013-08-07 16:59:411397 static_cast<DOMStorageContextWrapper*>(
[email protected]fdac6ade2013-07-20 01:06:301398 partition->GetDOMStorageContext()));
1399 session_storage_namespace_map_[partition_id] = session_storage_namespace;
1400
1401 return session_storage_namespace;
1402}
1403
1404SessionStorageNamespace*
1405NavigationControllerImpl::GetDefaultSessionStorageNamespace() {
1406 // TODO(ajwong): Remove if statement in GetSessionStorageNamespace().
1407 return GetSessionStorageNamespace(NULL);
1408}
1409
1410const SessionStorageNamespaceMap&
1411NavigationControllerImpl::GetSessionStorageNamespaceMap() const {
1412 return session_storage_namespace_map_;
[email protected]a26023822011-12-29 00:23:551413}
[email protected]d202a7c2012-01-04 07:53:471414
1415bool NavigationControllerImpl::NeedsReload() const {
[email protected]71fde352011-12-29 03:29:561416 return needs_reload_;
1417}
[email protected]a26023822011-12-29 00:23:551418
[email protected]46bb5e9c2013-10-03 22:16:471419void NavigationControllerImpl::SetNeedsReload() {
1420 needs_reload_ = true;
1421}
1422
[email protected]d202a7c2012-01-04 07:53:471423void NavigationControllerImpl::RemoveEntryAtIndexInternal(int index) {
[email protected]a26023822011-12-29 00:23:551424 DCHECK(index < GetEntryCount());
[email protected]6a13a6c2011-12-20 21:47:121425 DCHECK(index != last_committed_entry_index_);
[email protected]43032342011-03-21 14:10:311426
1427 DiscardNonCommittedEntries();
1428
1429 entries_.erase(entries_.begin() + index);
[email protected]6a13a6c2011-12-20 21:47:121430 if (last_committed_entry_index_ > index)
[email protected]43032342011-03-21 14:10:311431 last_committed_entry_index_--;
1432}
1433
[email protected]d202a7c2012-01-04 07:53:471434void NavigationControllerImpl::DiscardNonCommittedEntries() {
[email protected]cbab76d2008-10-13 22:42:471435 bool transient = transient_entry_index_ != -1;
1436 DiscardNonCommittedEntriesInternal();
initial.commit09911bf2008-07-26 23:55:291437
[email protected]cbab76d2008-10-13 22:42:471438 // If there was a transient entry, invalidate everything so the new active
1439 // entry state is shown.
1440 if (transient) {
[email protected]2db9bd72012-04-13 20:20:561441 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbab76d2008-10-13 22:42:471442 }
initial.commit09911bf2008-07-26 23:55:291443}
1444
[email protected]d202a7c2012-01-04 07:53:471445NavigationEntry* NavigationControllerImpl::GetPendingEntry() const {
[email protected]022af742011-12-28 18:37:251446 return pending_entry_;
1447}
1448
[email protected]d202a7c2012-01-04 07:53:471449int NavigationControllerImpl::GetPendingEntryIndex() const {
[email protected]a26023822011-12-29 00:23:551450 return pending_entry_index_;
1451}
1452
[email protected]d202a7c2012-01-04 07:53:471453void NavigationControllerImpl::InsertOrReplaceEntry(NavigationEntryImpl* entry,
1454 bool replace) {
[email protected]8ff00d72012-10-23 19:12:211455 DCHECK(entry->GetTransitionType() != PAGE_TRANSITION_AUTO_SUBFRAME);
[email protected]765b35502008-08-21 00:51:201456
1457 // Copy the pending entry's unique ID to the committed entry.
1458 // I don't know if pending_entry_index_ can be other than -1 here.
[email protected]10f417c52011-12-28 21:04:231459 const NavigationEntryImpl* const pending_entry =
1460 (pending_entry_index_ == -1) ?
1461 pending_entry_ : entries_[pending_entry_index_].get();
[email protected]765b35502008-08-21 00:51:201462 if (pending_entry)
[email protected]36fc0392011-12-25 03:59:511463 entry->set_unique_id(pending_entry->GetUniqueID());
[email protected]765b35502008-08-21 00:51:201464
[email protected]cbab76d2008-10-13 22:42:471465 DiscardNonCommittedEntriesInternal();
[email protected]765b35502008-08-21 00:51:201466
1467 int current_size = static_cast<int>(entries_.size());
1468
[email protected]765b35502008-08-21 00:51:201469 if (current_size > 0) {
[email protected]672eba292009-05-13 13:22:451470 // Prune any entries which are in front of the current entry.
1471 // Also prune the current entry if we are to replace the current entry.
[email protected]47dcbdc2011-05-27 15:08:311472 // last_committed_entry_index_ must be updated here since calls to
1473 // NotifyPrunedEntries() below may re-enter and we must make sure
1474 // last_committed_entry_index_ is not left in an invalid state.
1475 if (replace)
1476 --last_committed_entry_index_;
1477
[email protected]c12bf1a12008-09-17 16:28:491478 int num_pruned = 0;
[email protected]47dcbdc2011-05-27 15:08:311479 while (last_committed_entry_index_ < (current_size - 1)) {
[email protected]c12bf1a12008-09-17 16:28:491480 num_pruned++;
[email protected]765b35502008-08-21 00:51:201481 entries_.pop_back();
1482 current_size--;
1483 }
[email protected]c12bf1a12008-09-17 16:28:491484 if (num_pruned > 0) // Only notify if we did prune something.
1485 NotifyPrunedEntries(this, false, num_pruned);
[email protected]765b35502008-08-21 00:51:201486 }
1487
[email protected]944822b2012-03-02 20:57:251488 PruneOldestEntryIfFull();
[email protected]765b35502008-08-21 00:51:201489
[email protected]10f417c52011-12-28 21:04:231490 entries_.push_back(linked_ptr<NavigationEntryImpl>(entry));
[email protected]765b35502008-08-21 00:51:201491 last_committed_entry_index_ = static_cast<int>(entries_.size()) - 1;
[email protected]e9ba4472008-09-14 15:42:431492
1493 // This is a new page ID, so we need everybody to know about it.
[email protected]2db9bd72012-04-13 20:20:561494 web_contents_->UpdateMaxPageID(entry->GetPageID());
initial.commit09911bf2008-07-26 23:55:291495}
1496
[email protected]944822b2012-03-02 20:57:251497void NavigationControllerImpl::PruneOldestEntryIfFull() {
1498 if (entries_.size() >= max_entry_count()) {
1499 DCHECK_EQ(max_entry_count(), entries_.size());
[email protected]e6fec472013-05-14 05:29:021500 DCHECK_GT(last_committed_entry_index_, 0);
[email protected]944822b2012-03-02 20:57:251501 RemoveEntryAtIndex(0);
1502 NotifyPrunedEntries(this, true, 1);
1503 }
1504}
1505
[email protected]d202a7c2012-01-04 07:53:471506void NavigationControllerImpl::NavigateToPendingEntry(ReloadType reload_type) {
[email protected]72097fd02010-01-21 23:36:011507 needs_reload_ = false;
1508
[email protected]83c2e232011-10-07 21:36:461509 // If we were navigating to a slow-to-commit page, and the user performs
1510 // a session history navigation to the last committed page, RenderViewHost
1511 // will force the throbber to start, but WebKit will essentially ignore the
1512 // navigation, and won't send a message to stop the throbber. To prevent this
1513 // from happening, we drop the navigation here and stop the slow-to-commit
1514 // page from loading (which would normally happen during the navigation).
1515 if (pending_entry_index_ != -1 &&
1516 pending_entry_index_ == last_committed_entry_index_ &&
1517 (entries_[pending_entry_index_]->restore_type() ==
[email protected]10f417c52011-12-28 21:04:231518 NavigationEntryImpl::RESTORE_NONE) &&
[email protected]36fc0392011-12-25 03:59:511519 (entries_[pending_entry_index_]->GetTransitionType() &
[email protected]8ff00d72012-10-23 19:12:211520 PAGE_TRANSITION_FORWARD_BACK)) {
[email protected]2db9bd72012-04-13 20:20:561521 web_contents_->Stop();
[email protected]6a13a6c2011-12-20 21:47:121522
1523 // If an interstitial page is showing, we want to close it to get back
1524 // to what was showing before.
[email protected]2db9bd72012-04-13 20:20:561525 if (web_contents_->GetInterstitialPage())
1526 web_contents_->GetInterstitialPage()->DontProceed();
[email protected]6a13a6c2011-12-20 21:47:121527
[email protected]83c2e232011-10-07 21:36:461528 DiscardNonCommittedEntries();
1529 return;
1530 }
1531
[email protected]6a13a6c2011-12-20 21:47:121532 // If an interstitial page is showing, the previous renderer is blocked and
1533 // cannot make new requests. Unblock (and disable) it to allow this
1534 // navigation to succeed. The interstitial will stay visible until the
1535 // resulting DidNavigate.
[email protected]2db9bd72012-04-13 20:20:561536 if (web_contents_->GetInterstitialPage()) {
1537 static_cast<InterstitialPageImpl*>(web_contents_->GetInterstitialPage())->
[email protected]cadaec52012-02-08 21:53:131538 CancelForNavigation();
1539 }
[email protected]6a13a6c2011-12-20 21:47:121540
initial.commit09911bf2008-07-26 23:55:291541 // For session history navigations only the pending_entry_index_ is set.
1542 if (!pending_entry_) {
[email protected]4bf3522c2010-08-19 21:00:201543 DCHECK_NE(pending_entry_index_, -1);
[email protected]765b35502008-08-21 00:51:201544 pending_entry_ = entries_[pending_entry_index_].get();
initial.commit09911bf2008-07-26 23:55:291545 }
1546
[email protected]2db9bd72012-04-13 20:20:561547 if (!web_contents_->NavigateToPendingEntry(reload_type))
[email protected]cbab76d2008-10-13 22:42:471548 DiscardNonCommittedEntries();
[email protected]77362eb2011-08-01 17:18:381549
1550 // If the entry is being restored and doesn't have a SiteInstance yet, fill
1551 // it in now that we know. This allows us to find the entry when it commits.
1552 // This works for browser-initiated navigations. We handle renderer-initiated
[email protected]2db9bd72012-04-13 20:20:561553 // navigations to restored entries in WebContentsImpl::OnGoToEntryAtOffset.
[email protected]77362eb2011-08-01 17:18:381554 if (pending_entry_ && !pending_entry_->site_instance() &&
[email protected]10f417c52011-12-28 21:04:231555 pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE) {
[email protected]b6583592012-01-25 19:52:331556 pending_entry_->set_site_instance(static_cast<SiteInstanceImpl*>(
[email protected]2db9bd72012-04-13 20:20:561557 web_contents_->GetPendingSiteInstance()));
[email protected]10f417c52011-12-28 21:04:231558 pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
[email protected]77362eb2011-08-01 17:18:381559 }
initial.commit09911bf2008-07-26 23:55:291560}
1561
[email protected]d202a7c2012-01-04 07:53:471562void NavigationControllerImpl::NotifyNavigationEntryCommitted(
[email protected]8ff00d72012-10-23 19:12:211563 LoadCommittedDetails* details) {
[email protected]6286a3792013-10-09 04:03:271564 details->entry = GetLastCommittedEntry();
[email protected]df1af242009-05-01 00:11:401565
[email protected]2db9bd72012-04-13 20:20:561566 // We need to notify the ssl_manager_ before the web_contents_ so the
[email protected]df1af242009-05-01 00:11:401567 // location bar will have up-to-date information about the security style
1568 // when it wants to draw. See http://crbug.com/11157
[email protected]b0f724c2013-09-05 04:21:131569 ssl_manager_.DidCommitProvisionalLoad(*details);
[email protected]df1af242009-05-01 00:11:401570
[email protected]2db9bd72012-04-13 20:20:561571 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
[email protected]cbb1ef592013-06-05 19:49:461572 web_contents_->NotifyNavigationEntryCommitted(*details);
1573
[email protected]b0f724c2013-09-05 04:21:131574 // TODO(avi): Remove. http://crbug.com/170921
1575 NotificationDetails notification_details =
1576 Details<LoadCommittedDetails>(details);
[email protected]8ff00d72012-10-23 19:12:211577 NotificationService::current()->Notify(
1578 NOTIFICATION_NAV_ENTRY_COMMITTED,
1579 Source<NavigationController>(this),
[email protected]df1af242009-05-01 00:11:401580 notification_details);
initial.commit09911bf2008-07-26 23:55:291581}
1582
initial.commit09911bf2008-07-26 23:55:291583// static
[email protected]d202a7c2012-01-04 07:53:471584size_t NavigationControllerImpl::max_entry_count() {
[email protected]9b51970d2011-12-09 23:10:231585 if (max_entry_count_for_testing_ != kMaxEntryCountForTestingNotSet)
1586 return max_entry_count_for_testing_;
[email protected]8ff00d72012-10-23 19:12:211587 return kMaxSessionHistoryEntries;
[email protected]9b51970d2011-12-09 23:10:231588}
1589
[email protected]d202a7c2012-01-04 07:53:471590void NavigationControllerImpl::SetActive(bool is_active) {
[email protected]ee613922009-09-02 20:38:221591 if (is_active && needs_reload_)
1592 LoadIfNecessary();
initial.commit09911bf2008-07-26 23:55:291593}
1594
[email protected]d202a7c2012-01-04 07:53:471595void NavigationControllerImpl::LoadIfNecessary() {
initial.commit09911bf2008-07-26 23:55:291596 if (!needs_reload_)
1597 return;
1598
initial.commit09911bf2008-07-26 23:55:291599 // Calling Reload() results in ignoring state, and not loading.
1600 // Explicitly use NavigateToPendingEntry so that the renderer uses the
1601 // cached state.
1602 pending_entry_index_ = last_committed_entry_index_;
[email protected]1ccb3568d2010-02-19 10:51:161603 NavigateToPendingEntry(NO_RELOAD);
initial.commit09911bf2008-07-26 23:55:291604}
1605
[email protected]d202a7c2012-01-04 07:53:471606void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
1607 int index) {
[email protected]8ff00d72012-10-23 19:12:211608 EntryChangedDetails det;
[email protected]534e54b2008-08-13 15:40:091609 det.changed_entry = entry;
1610 det.index = index;
[email protected]8ff00d72012-10-23 19:12:211611 NotificationService::current()->Notify(
1612 NOTIFICATION_NAV_ENTRY_CHANGED,
1613 Source<NavigationController>(this),
1614 Details<EntryChangedDetails>(&det));
initial.commit09911bf2008-07-26 23:55:291615}
1616
[email protected]d202a7c2012-01-04 07:53:471617void NavigationControllerImpl::FinishRestore(int selected_index,
[email protected]2ca1ea662012-10-04 02:26:361618 RestoreType type) {
[email protected]a26023822011-12-29 00:23:551619 DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
[email protected]2ca1ea662012-10-04 02:26:361620 ConfigureEntriesForRestore(&entries_, type);
initial.commit09911bf2008-07-26 23:55:291621
[email protected]71fde352011-12-29 03:29:561622 SetMaxRestoredPageID(static_cast<int32>(GetEntryCount()));
initial.commit09911bf2008-07-26 23:55:291623
1624 last_committed_entry_index_ = selected_index;
initial.commit09911bf2008-07-26 23:55:291625}
[email protected]765b35502008-08-21 00:51:201626
[email protected]d202a7c2012-01-04 07:53:471627void NavigationControllerImpl::DiscardNonCommittedEntriesInternal() {
[email protected]b12eb222013-09-10 00:11:481628 DiscardPendingEntry();
1629 DiscardTransientEntry();
1630}
1631
1632void NavigationControllerImpl::DiscardPendingEntry() {
[email protected]765b35502008-08-21 00:51:201633 if (pending_entry_index_ == -1)
1634 delete pending_entry_;
1635 pending_entry_ = NULL;
1636 pending_entry_index_ = -1;
[email protected]cbab76d2008-10-13 22:42:471637}
1638
[email protected]d202a7c2012-01-04 07:53:471639void NavigationControllerImpl::DiscardTransientEntry() {
[email protected]cbab76d2008-10-13 22:42:471640 if (transient_entry_index_ == -1)
1641 return;
[email protected]a0e69262009-06-03 19:08:481642 entries_.erase(entries_.begin() + transient_entry_index_);
[email protected]80858db52009-10-15 00:35:181643 if (last_committed_entry_index_ > transient_entry_index_)
1644 last_committed_entry_index_--;
[email protected]cbab76d2008-10-13 22:42:471645 transient_entry_index_ = -1;
[email protected]765b35502008-08-21 00:51:201646}
1647
[email protected]d202a7c2012-01-04 07:53:471648int NavigationControllerImpl::GetEntryIndexWithPageID(
[email protected]7f0005a2009-04-15 03:25:111649 SiteInstance* instance, int32 page_id) const {
[email protected]765b35502008-08-21 00:51:201650 for (int i = static_cast<int>(entries_.size()) - 1; i >= 0; --i) {
[email protected]7f0005a2009-04-15 03:25:111651 if ((entries_[i]->site_instance() == instance) &&
[email protected]36fc0392011-12-25 03:59:511652 (entries_[i]->GetPageID() == page_id))
[email protected]765b35502008-08-21 00:51:201653 return i;
1654 }
1655 return -1;
1656}
[email protected]cbab76d2008-10-13 22:42:471657
[email protected]d202a7c2012-01-04 07:53:471658NavigationEntry* NavigationControllerImpl::GetTransientEntry() const {
[email protected]cbab76d2008-10-13 22:42:471659 if (transient_entry_index_ == -1)
1660 return NULL;
1661 return entries_[transient_entry_index_].get();
1662}
[email protected]e1cd5452010-08-26 18:03:251663
[email protected]0b684262013-02-20 02:18:211664void NavigationControllerImpl::SetTransientEntry(NavigationEntry* entry) {
1665 // Discard any current transient entry, we can only have one at a time.
1666 int index = 0;
1667 if (last_committed_entry_index_ != -1)
1668 index = last_committed_entry_index_ + 1;
1669 DiscardTransientEntry();
1670 entries_.insert(
1671 entries_.begin() + index, linked_ptr<NavigationEntryImpl>(
1672 NavigationEntryImpl::FromNavigationEntry(entry)));
1673 transient_entry_index_ = index;
1674 web_contents_->NotifyNavigationStateChanged(kInvalidateAll);
1675}
1676
[email protected]d202a7c2012-01-04 07:53:471677void NavigationControllerImpl::InsertEntriesFrom(
1678 const NavigationControllerImpl& source,
[email protected]e1cd5452010-08-26 18:03:251679 int max_index) {
[email protected]a26023822011-12-29 00:23:551680 DCHECK_LE(max_index, source.GetEntryCount());
[email protected]e1cd5452010-08-26 18:03:251681 size_t insert_index = 0;
1682 for (int i = 0; i < max_index; i++) {
1683 // When cloning a tab, copy all entries except interstitial pages
[email protected]ad23a092011-12-28 07:02:041684 if (source.entries_[i].get()->GetPageType() !=
[email protected]8ff00d72012-10-23 19:12:211685 PAGE_TYPE_INTERSTITIAL) {
[email protected]e1cd5452010-08-26 18:03:251686 entries_.insert(entries_.begin() + insert_index++,
[email protected]10f417c52011-12-28 21:04:231687 linked_ptr<NavigationEntryImpl>(
1688 new NavigationEntryImpl(*source.entries_[i])));
[email protected]e1cd5452010-08-26 18:03:251689 }
1690 }
1691}
[email protected]c5b88d82012-10-06 17:03:331692
1693void NavigationControllerImpl::SetGetTimestampCallbackForTest(
1694 const base::Callback<base::Time()>& get_timestamp_callback) {
1695 get_timestamp_callback_ = get_timestamp_callback;
1696}
[email protected]8ff00d72012-10-23 19:12:211697
1698} // namespace content