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Diffstat (limited to 'chrome/browser/history_model.cc')
| -rw-r--r-- | chrome/browser/history_model.cc | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/chrome/browser/history_model.cc b/chrome/browser/history_model.cc deleted file mode 100644 index c9df37c..0000000 --- a/chrome/browser/history_model.cc +++ /dev/null @@ -1,297 +0,0 @@ -// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "chrome/browser/history_model.h" - -#include "chrome/browser/bookmarks/bookmark_model.h" -#include "chrome/browser/profile.h" -#include "chrome/common/notification_service.h" - -using base::Time; - -// The max number of results to retrieve when browsing user's history. -static const int kMaxBrowseResults = 800; - -// The max number of search results to retrieve. -static const int kMaxSearchResults = 100; - -HistoryModel::HistoryModel(Profile* profile, const std::wstring& search_text) - : BaseHistoryModel(profile), - search_text_(search_text), - search_depth_(0) { - // Register for notifications about URL starredness changing on this profile. - NotificationService::current()->AddObserver( - this, - NotificationType::URLS_STARRED, - Source<Profile>(profile->GetOriginalProfile())); - NotificationService::current()->AddObserver( - this, - NotificationType::HISTORY_URLS_DELETED, - Source<Profile>(profile->GetOriginalProfile())); -} - -HistoryModel::~HistoryModel() { - // Unregister for notifications about URL starredness. - NotificationService::current()->RemoveObserver( - this, - NotificationType::URLS_STARRED, - Source<Profile>(profile_->GetOriginalProfile())); - NotificationService::current()->RemoveObserver( - this, - NotificationType::HISTORY_URLS_DELETED, - Source<Profile>(profile_->GetOriginalProfile())); -} - -int HistoryModel::GetItemCount() { - return static_cast<int>(results_.size()); -} - -Time HistoryModel::GetVisitTime(int index) { -#ifndef NDEBUG - DCHECK(IsValidIndex(index)); -#endif - return results_[index].visit_time(); -} - -const std::wstring& HistoryModel::GetTitle(int index) { - return results_[index].title(); -} - -const GURL& HistoryModel::GetURL(int index) { - return results_[index].url(); -} - -history::URLID HistoryModel::GetURLID(int index) { - return results_[index].id(); -} - -bool HistoryModel::IsStarred(int index) { - if (star_state_[index] == UNKNOWN) { - bool is_starred = profile_->GetBookmarkModel()->IsBookmarked(GetURL(index)); - star_state_[index] = is_starred ? STARRED : NOT_STARRED; - } - return (star_state_[index] == STARRED); -} - -const Snippet& HistoryModel::GetSnippet(int index) { - return results_[index].snippet(); -} - -void HistoryModel::RemoveFromModel(int start, int length) { - DCHECK(start >= 0 && start + length <= GetItemCount()); - results_.DeleteRange(start, start + length); - if (observer_) - observer_->ModelChanged(true); -} - -void HistoryModel::SetSearchText(const std::wstring& search_text) { - if (search_text == search_text_) - return; - - search_text_ = search_text; - search_depth_ = 0; - Refresh(); -} - -void HistoryModel::InitVisitRequest(int depth) { - HistoryService* history_service = - profile_->GetHistoryService(Profile::EXPLICIT_ACCESS); - if (!history_service) - return; - - AboutToScheduleRequest(); - - history::QueryOptions options; - - // Limit our search so that it doesn't return more than the maximum required - // number of results. - int max_total_results = search_text_.empty() ? - kMaxBrowseResults : kMaxSearchResults; - - if (depth == 0) { - // Set the end time of this first search to null (which will - // show results from the future, should the user's clock have - // been set incorrectly). - options.end_time = Time(); - - search_start_ = Time::Now(); - - // Configure the begin point of the search to the start of the - // current month. - Time::Exploded start_exploded; - search_start_.LocalMidnight().LocalExplode(&start_exploded); - start_exploded.day_of_month = 1; - options.begin_time = Time::FromLocalExploded(start_exploded); - - options.max_count = max_total_results; - } else { - Time::Exploded exploded; - search_start_.LocalMidnight().LocalExplode(&exploded); - exploded.day_of_month = 1; - - // Set the end-time of this search to the end of the month that is - // |depth| months before the search end point. The end time is not - // inclusive, so we should feel free to set it to midnight on the - // first day of the following month. - exploded.month -= depth - 1; - while (exploded.month < 1) { - exploded.month += 12; - exploded.year--; - } - options.end_time = Time::FromLocalExploded(exploded); - - // Set the begin-time of the search to the start of the month - // that is |depth| months prior to search_start_. - if (exploded.month > 1) { - exploded.month--; - } else { - exploded.month = 12; - exploded.year--; - } - options.begin_time = Time::FromLocalExploded(exploded); - - // Subtract off the number of pages we already got. - options.max_count = max_total_results - static_cast<int>(results_.size()); - } - - // This will make us get only one entry for each page. This is definitely - // correct for "starred only" queries, but more debatable for regular - // history queries. We might want to get all of them but then remove adjacent - // duplicates like Mozilla. - // - // We'll still get duplicates across month boundaries, which is probably fine. - options.most_recent_visit_only = true; - - HistoryService::QueryHistoryCallback* callback = - NewCallback(this, &HistoryModel::VisitedPagesQueryComplete); - history_service->QueryHistory(search_text_, options, - &cancelable_consumer_, callback); -} - -void HistoryModel::SetPageStarred(int index, bool state) { - const history::URLResult& result = results_[index]; - if (!UpdateStarredStateOfURL(result.url(), state)) - return; // Nothing was changed. - - if (observer_) - observer_->ModelChanged(false); - - BookmarkModel* bb_model = profile_->GetBookmarkModel(); - if (bb_model) - bb_model->SetURLStarred(result.url(), result.title(), state); -} - -void HistoryModel::Refresh() { - cancelable_consumer_.CancelAllRequests(); - if (observer_) - observer_->ModelEndWork(); - search_depth_ = 0; - InitVisitRequest(search_depth_); - - if (results_.size() > 0) { - // There are results and we've been asked to reload. If we don't swap out - // the results now, the view is left holding indices that are going to - // change as soon as the load completes, which poses problems for deletion. - // In particular, if the user deletes a range, then clicks on delete again - // a modal dialog is shown. If during the time the modal dialog is shown - // and the user clicks ok the load completes, the index passed to delete is - // no longer valid. To avoid this we empty out the results immediately. - history::QueryResults empty_results; - results_.Swap(&empty_results); - if (observer_) - observer_->ModelChanged(true); - } -} - -void HistoryModel::Observe(NotificationType type, - const NotificationSource& source, - const NotificationDetails& details) { - switch (type.value) { - case NotificationType::URLS_STARRED: { // Somewhere a URL has been starred. - Details<history::URLsStarredDetails> starred_state(details); - - // In the degenerate case when there are a lot of pages starred, this may - // be unacceptably slow. - std::set<GURL>::const_iterator i; - bool changed = false; - for (i = starred_state->changed_urls.begin(); - i != starred_state->changed_urls.end(); ++i) { - changed |= UpdateStarredStateOfURL(*i, starred_state->starred); - } - if (changed && observer_) - observer_->ModelChanged(false); - break; - } - - case NotificationType::HISTORY_URLS_DELETED: - // TODO(brettw) bug 1140015: This should actually update the current query - // rather than re-querying. This should be much more efficient and - // user-friendly. - // - // Note that we can special case when the "all_history" flag is set to just - // clear the view. - Refresh(); - break; - - // TODO(brettw) bug 1140015, 1140017, 1140020: Add a more observers to catch - // title changes, new additions, etc.. Also, URLS_ADDED when that - // notification exists. - - default: - NOTREACHED(); - break; - } -} - -void HistoryModel::VisitedPagesQueryComplete( - HistoryService::Handle request_handle, - history::QueryResults* results) { - bool changed = (results->size() > 0); - if (search_depth_ == 0) { - if (results_.size() > 0) - changed = true; - results_.Swap(results); - } else { - results_.AppendResultsBySwapping(results, true); - } - - is_search_results_ = !search_text_.empty(); - - if (changed) { - star_state_.reset(new StarState[results_.size()]); - memset(star_state_.get(), 0, sizeof(StarState) * results_.size()); - if (observer_) - observer_->ModelChanged(true); - } - - search_depth_++; - - int max_results = search_text_.empty() ? - kMaxBrowseResults : kMaxSearchResults; - - // TODO(glen/brettw): bug 1203052 - Need to detect if we've reached the - // end of the user's history. - if (search_depth_ < kHistoryScopeMonths && - static_cast<int>(results_.size()) < max_results) { - InitVisitRequest(search_depth_); - } else { - RequestCompleted(); - } -} - -bool HistoryModel::UpdateStarredStateOfURL(const GURL& url, bool is_starred) { - bool changed = false; - - // See if we've got any of the changed URLs in our results. There may be - // more than once instance of the URL, and we have to update them all. - size_t num_matches; - const size_t* match_indices = results_.MatchesForURL(url, &num_matches); - for (size_t i = 0; i < num_matches; i++) { - if (IsStarred(static_cast<int>(match_indices[i])) != is_starred) { - star_state_[match_indices[i]] = is_starred ? STARRED : NOT_STARRED; - changed = true; - } - } - return changed; -} |