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// Copyright (c) 2012 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 "components/omnibox/browser/history_provider.h"
#include <string>
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "components/bookmarks/browser/bookmark_model.h"
#include "components/history/core/browser/history_service.h"
#include "components/omnibox/browser/autocomplete_input.h"
#include "components/omnibox/browser/autocomplete_match.h"
#include "components/omnibox/browser/in_memory_url_index_types.h"
#include "url/url_util.h"
using bookmarks::BookmarkModel;
void HistoryProvider::DeleteMatch(const AutocompleteMatch& match) {
DCHECK(done_);
DCHECK(client_);
DCHECK(match.deletable);
history::HistoryService* const history_service = client_->GetHistoryService();
// Delete the underlying URL along with all its visits from the history DB.
// The resulting HISTORY_URLS_DELETED notification will also cause all caches
// and indices to drop any data they might have stored pertaining to the URL.
DCHECK(history_service);
DCHECK(match.destination_url.is_valid());
history_service->DeleteURL(match.destination_url);
DeleteMatchFromMatches(match);
}
// static
bool HistoryProvider::PreventInlineAutocomplete(
const AutocompleteInput& input) {
return input.prevent_inline_autocomplete() ||
(!input.text().empty() && base::IsUnicodeWhitespace(input.text().back()));
}
HistoryProvider::HistoryProvider(AutocompleteProvider::Type type,
AutocompleteProviderClient* client)
: AutocompleteProvider(type), client_(client) {
}
HistoryProvider::~HistoryProvider() {}
void HistoryProvider::DeleteMatchFromMatches(const AutocompleteMatch& match) {
bool found = false;
BookmarkModel* bookmark_model = client_->GetBookmarkModel();
for (ACMatches::iterator i(matches_.begin()); i != matches_.end(); ++i) {
if (i->destination_url == match.destination_url && i->type == match.type) {
found = true;
if ((i->type == AutocompleteMatchType::URL_WHAT_YOU_TYPED) ||
(bookmark_model &&
bookmark_model->IsBookmarked(i->destination_url))) {
// We can't get rid of What-You-Typed or Bookmarked matches,
// but we can make them look like they have no backing data.
i->deletable = false;
i->description.clear();
i->description_class.clear();
} else {
matches_.erase(i);
}
break;
}
}
DCHECK(found) << "Asked to delete a URL that isn't in our set of matches";
}
// static
ACMatchClassifications HistoryProvider::SpansFromTermMatch(
const TermMatches& matches,
size_t text_length,
bool is_url) {
ACMatchClassification::Style url_style =
is_url ? ACMatchClassification::URL : ACMatchClassification::NONE;
ACMatchClassifications spans;
if (matches.empty()) {
if (text_length)
spans.push_back(ACMatchClassification(0, url_style));
return spans;
}
if (matches[0].offset)
spans.push_back(ACMatchClassification(0, url_style));
size_t match_count = matches.size();
for (size_t i = 0; i < match_count;) {
size_t offset = matches[i].offset;
spans.push_back(ACMatchClassification(offset,
ACMatchClassification::MATCH | url_style));
// Skip all adjacent matches.
do {
offset += matches[i].length;
++i;
} while ((i < match_count) && (offset == matches[i].offset));
if (offset < text_length)
spans.push_back(ACMatchClassification(offset, url_style));
}
return spans;
}
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