1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.quicksearchbox.preferences; 17 18 import com.android.quicksearchbox.QsbApplication; 19 import com.android.quicksearchbox.R; 20 21 import android.preference.PreferenceActivity; 22 import android.util.Log; 23 import android.view.Menu; 24 25 import java.util.List; 26 27 /** 28 * Activity for setting global search preferences. 29 */ 30 public class SearchSettingsActivity extends PreferenceActivity { 31 private static final String TAG = "QSB.SearchSettingsActivity"; 32 private static final boolean DBG = false; 33 34 private static final String CLEAR_SHORTCUTS_FRAGMENT = DeviceSearchFragment.class.getName(); 35 36 private static final String ACTIVITY_HELP_CONTEXT = "settings"; 37 38 /** 39 * Populate the activity with the top-level headers. 40 */ 41 @Override onBuildHeaders(List<Header> target)42 public void onBuildHeaders(List<Header> target) { 43 loadHeadersFromResource(R.xml.preferences_headers, target); 44 onHeadersBuilt(target); 45 } 46 47 @Override onCreateOptionsMenu(Menu menu)48 public boolean onCreateOptionsMenu(Menu menu) { 49 super.onCreateOptionsMenu(menu); 50 getQsbApplication().getHelp().addHelpMenuItem(menu, ACTIVITY_HELP_CONTEXT, true); 51 return true; 52 } 53 getQsbApplication()54 protected QsbApplication getQsbApplication() { 55 return QsbApplication.get(this); 56 } 57 58 /** 59 * Get the name of the fragment that contains only a 'clear shortcuts' preference, and hence 60 * can be removed if zero-query shortcuts are disabled. Returns null if no such fragment exists. 61 */ getShortcutsOnlyFragment()62 protected String getShortcutsOnlyFragment() { 63 return CLEAR_SHORTCUTS_FRAGMENT; 64 } 65 onHeadersBuilt(List<Header> target)66 protected void onHeadersBuilt(List<Header> target) { 67 String shortcutsFragment = getShortcutsOnlyFragment(); 68 if (shortcutsFragment == null) return; 69 if (DBG) Log.d(TAG, "onHeadersBuilt shortcutsFragment=" + shortcutsFragment); 70 if (!QsbApplication.get(this).getConfig().showShortcutsForZeroQuery()) { 71 // remove 'clear shortcuts' 72 for (int i = 0; i < target.size(); ++i) { 73 String fragment = target.get(i).fragment; 74 if (DBG) Log.d(TAG, "fragment " + i + ": " + fragment); 75 if (shortcutsFragment.equals(fragment)) { 76 target.remove(i); 77 break; 78 } 79 } 80 } 81 } 82 83 } 84