michael@0: /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.home;
michael@0: 
michael@0: import org.mozilla.gecko.db.BrowserContract.HomeItems;
michael@0: import org.mozilla.gecko.home.HomeConfig.ViewConfig;
michael@0: import org.mozilla.gecko.home.HomePager.OnUrlOpenListener;
michael@0: import org.mozilla.gecko.home.PanelLayout.FilterManager;
michael@0: import org.mozilla.gecko.home.PanelLayout.OnItemOpenListener;
michael@0: 
michael@0: import android.database.Cursor;
michael@0: 
michael@0: import java.util.EnumSet;
michael@0: 
michael@0: class PanelViewItemHandler {
michael@0:     private final ViewConfig mViewConfig;
michael@0:     private OnItemOpenListener mItemOpenListener;
michael@0:     private FilterManager mFilterManager;
michael@0: 
michael@0:     public PanelViewItemHandler(ViewConfig viewConfig) {
michael@0:         mViewConfig = viewConfig;
michael@0:     }
michael@0: 
michael@0:     public void setOnItemOpenListener(OnItemOpenListener listener) {
michael@0:         mItemOpenListener = listener;
michael@0:     }
michael@0: 
michael@0:     public void setFilterManager(FilterManager manager) {
michael@0:         mFilterManager = manager;
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * If item at this position is a back item, perform the go back action via the
michael@0:      * {@code FilterManager}. Otherwise, prepare the url to be opened by the
michael@0:      * {@code OnUrlOpenListener}.
michael@0:      */
michael@0:     public void openItemAtPosition(Cursor cursor, int position) {
michael@0:         if (mFilterManager != null && mFilterManager.canGoBack()) {
michael@0:             if (position == 0) {
michael@0:                 mFilterManager.goBack();
michael@0:                 return;
michael@0:             }
michael@0: 
michael@0:             position--;
michael@0:         }
michael@0: 
michael@0:         if (cursor == null || !cursor.moveToPosition(position)) {
michael@0:             throw new IllegalStateException("Couldn't move cursor to position " + position);
michael@0:         }
michael@0: 
michael@0:         int urlIndex = cursor.getColumnIndexOrThrow(HomeItems.URL);
michael@0:         final String url = cursor.getString(urlIndex);
michael@0: 
michael@0:         int titleIndex = cursor.getColumnIndexOrThrow(HomeItems.TITLE);
michael@0:         final String title = cursor.getString(titleIndex);
michael@0: 
michael@0:         if (mItemOpenListener != null) {
michael@0:             mItemOpenListener.onItemOpen(url, title);
michael@0:         }
michael@0:     }
michael@0: }