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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 "chrome/browser/history/android/favicon_sql_handler.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/memory/ref_counted_memory.h"
#include "chrome/browser/history/thumbnail_database.h"
using base::Time;
namespace history {
namespace {
// The interesting columns of this handler.
const HistoryAndBookmarkRow::ColumnID kInterestingColumns[] = {
HistoryAndBookmarkRow::FAVICON};
} // namespace
FaviconSQLHandler::FaviconSQLHandler(ThumbnailDatabase* thumbnail_db)
: SQLHandler(kInterestingColumns, arraysize(kInterestingColumns)),
thumbnail_db_(thumbnail_db) {
}
FaviconSQLHandler::~FaviconSQLHandler() {
}
bool FaviconSQLHandler::Update(const HistoryAndBookmarkRow& row,
const TableIDRows& ids_set) {
FaviconID favicon_id = 0;
if (!row.favicon().empty()) {
// If the image_data will be updated, it is not reasonable to find if the
// icon is already in database, just create a new favicon.
favicon_id = thumbnail_db_->AddFavicon(GURL(), history::FAVICON);
if (!favicon_id)
return false;
scoped_refptr<base::RefCountedMemory> image_data =
new base::RefCountedBytes(row.favicon());
if (!thumbnail_db_->SetFavicon(favicon_id, image_data, Time::Now()))
return false;
}
std::vector<FaviconID> favicon_ids;
for (TableIDRows::const_iterator i = ids_set.begin();
i != ids_set.end(); ++i) {
IconMapping icon_mapping;
if (thumbnail_db_->GetIconMappingForPageURL(i->url, FAVICON,
&icon_mapping)) {
if (favicon_id) {
if (!thumbnail_db_->UpdateIconMapping(icon_mapping.mapping_id,
favicon_id))
return false;
} else {
// Require to delete the icon mapping.
if (!thumbnail_db_->DeleteIconMappings(i->url))
return false;
}
// Keep the old icon for deleting it later if possible.
favicon_ids.push_back(icon_mapping.icon_id);
} else if (favicon_id) {
// The URL doesn't have icon before, add the icon mapping.
if (!thumbnail_db_->AddIconMapping(i->url, favicon_id))
return false;
}
}
// As we update the favicon, Let's remove unused favicons if any.
if (!favicon_ids.empty() && !DeleteUnusedFavicon(favicon_ids))
return false;
return true;
}
bool FaviconSQLHandler::Delete(const TableIDRows& ids_set) {
std::vector<FaviconID> favicon_ids;
for (TableIDRows::const_iterator i = ids_set.begin();
i != ids_set.end(); ++i) {
// Since the URL was delete, we delete all type of icon mapping.
IconMapping icon_mapping;
if (thumbnail_db_->GetIconMappingForPageURL(i->url, FAVICON,
&icon_mapping))
favicon_ids.push_back(icon_mapping.icon_id);
if (thumbnail_db_->GetIconMappingForPageURL(i->url, TOUCH_ICON,
&icon_mapping))
favicon_ids.push_back(icon_mapping.icon_id);
if (thumbnail_db_->GetIconMappingForPageURL(i->url,
TOUCH_PRECOMPOSED_ICON, &icon_mapping))
favicon_ids.push_back(icon_mapping.icon_id);
if (!thumbnail_db_->DeleteIconMappings(i->url))
return false;
}
if (favicon_ids.empty())
return true;
if (!DeleteUnusedFavicon(favicon_ids))
return false;
return true;
}
bool FaviconSQLHandler::Insert(HistoryAndBookmarkRow* row) {
if (!row->is_value_set_explicitly(HistoryAndBookmarkRow::FAVICON) ||
row->favicon().empty())
return true;
DCHECK(row->is_value_set_explicitly(HistoryAndBookmarkRow::URL));
// Is it a problem to give a empty URL?
FaviconID id = thumbnail_db_->AddFavicon(GURL(), history::FAVICON);
if (!id)
return false;
scoped_refptr<base::RefCountedMemory> image_data =
new base::RefCountedBytes(row->favicon());
if (!thumbnail_db_->SetFavicon(id, image_data, Time::Now()))
return false;
return thumbnail_db_->AddIconMapping(row->url(), id);
}
bool FaviconSQLHandler::DeleteUnusedFavicon(const std::vector<FaviconID>& ids) {
for (std::vector<FaviconID>::const_iterator i = ids.begin(); i != ids.end();
++i) {
if (!thumbnail_db_->HasMappingFor(*i) && !thumbnail_db_->DeleteFavicon(*i))
return false;
}
return true;
}
} // namespace history.
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