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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.
#ifndef CHROME_BROWSER_UI_SEARCH_ENGINES_TEMPLATE_URL_TABLE_MODEL_H_
#define CHROME_BROWSER_UI_SEARCH_ENGINES_TEMPLATE_URL_TABLE_MODEL_H_
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string16.h"
#include "components/search_engines/template_url_service_observer.h"
#include "ui/base/models/table_model.h"
class FaviconService;
class TemplateURL;
class TemplateURLService;
namespace gfx {
class ImageSkia;
}
// TemplateURLTableModel is the TableModel implementation used by
// KeywordEditorView to show the keywords in a TableView.
//
// TemplateURLTableModel has two columns, the first showing the description,
// the second the keyword.
//
// TemplateURLTableModel maintains a vector of ModelEntrys that correspond to
// each row in the tableview. Each ModelEntry wraps a TemplateURL, providing
// the favicon. The entries in the model are sorted such that non-generated
// appear first (grouped together) and are followed by generated keywords.
class TemplateURLTableModel : public ui::TableModel,
TemplateURLServiceObserver {
public:
TemplateURLTableModel(TemplateURLService* template_url_service,
FaviconService* favicon_service);
~TemplateURLTableModel() override;
// Reloads the entries from the TemplateURLService. This should ONLY be
// invoked if the TemplateURLService wasn't initially loaded and has been
// loaded.
void Reload();
// ui::TableModel overrides.
int RowCount() override;
base::string16 GetText(int row, int column) override;
gfx::ImageSkia GetIcon(int row) override;
void SetObserver(ui::TableModelObserver* observer) override;
bool HasGroups() override;
Groups GetGroups() override;
int GetGroupID(int row) override;
// Removes the entry at the specified index.
void Remove(int index);
// Adds a new entry at the specified index.
void Add(int index,
const base::string16& short_name,
const base::string16& keyword,
const std::string& url);
// Update the entry at the specified index.
void ModifyTemplateURL(int index,
const base::string16& title,
const base::string16& keyword,
const std::string& url);
// Reloads the icon at the specified index.
void ReloadIcon(int index);
// Returns the TemplateURL at the specified index.
TemplateURL* GetTemplateURL(int index);
// Returns the index of the TemplateURL, or -1 if it the TemplateURL is not
// found.
int IndexOfTemplateURL(const TemplateURL* template_url);
// Moves the keyword at the specified index to be at the end of the main
// group. Returns the new index. If the entry is already in the main group,
// no action is taken, and the current index is returned.
int MoveToMainGroup(int index);
// Make the TemplateURL at |index| the default. Returns the new index, or -1
// if the index is invalid or it is already the default.
int MakeDefaultTemplateURL(int index);
// If there is an observer, it's notified the selected row has changed.
void NotifyChanged(int index);
// Returns the index of the last entry shown in the search engines group.
int last_search_engine_index() const { return last_search_engine_index_; }
// Returns the index of the last entry shown in the other search engines
// group.
int last_other_engine_index() const { return last_other_engine_index_; }
private:
class ModelEntry;
// Notification that a model entry has fetched its icon.
void FaviconAvailable(ModelEntry* entry);
// TemplateURLServiceObserver notification.
void OnTemplateURLServiceChanged() override;
// Removes the entry at |index| from |entries_| and returns the removed item.
scoped_ptr<ModelEntry> RemoveEntry(int index);
// Adds |entry| to |entries_| at |index| and takes ownership.
void AddEntry(int index, scoped_ptr<ModelEntry> entry);
ui::TableModelObserver* observer_;
// The entries.
std::vector<ModelEntry*> entries_;
// The model we're displaying entries from.
TemplateURLService* template_url_service_;
FaviconService* favicon_service_;
// Index of the last search engine in entries_. This is used to determine the
// group boundaries.
int last_search_engine_index_;
// Index of the last other engine in entries_. This is used to determine the
// group boundaries.
int last_other_engine_index_;
DISALLOW_COPY_AND_ASSIGN(TemplateURLTableModel);
};
#endif // CHROME_BROWSER_UI_SEARCH_ENGINES_TEMPLATE_URL_TABLE_MODEL_H_
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