Aga Wronska | 8788dad | 2016-01-15 17:30:15 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | |
| 17 | package com.android.documentsui; |
| 18 | |
| 19 | import android.provider.DocumentsContract.Root; |
| 20 | import android.text.TextUtils; |
| 21 | import android.util.Log; |
| 22 | import android.view.MenuItem; |
| 23 | import android.view.View; |
| 24 | import android.view.View.OnClickListener; |
| 25 | import android.view.View.OnFocusChangeListener; |
| 26 | import android.widget.SearchView; |
| 27 | import android.widget.SearchView.OnQueryTextListener; |
| 28 | |
| 29 | import com.android.documentsui.model.RootInfo; |
| 30 | |
| 31 | /** |
| 32 | * Manages searching UI behavior. |
| 33 | */ |
| 34 | final class SearchManager implements |
| 35 | SearchView.OnCloseListener, OnQueryTextListener, OnClickListener, OnFocusChangeListener { |
| 36 | |
| 37 | public interface SearchManagerListener { |
| 38 | void onSearchChanged(); |
| 39 | |
| 40 | void onSearchQueryChanged(String query); |
| 41 | } |
| 42 | |
| 43 | public static final String TAG = "SearchManger"; |
| 44 | |
| 45 | private SearchManagerListener mListener; |
| 46 | private String currentSearch; |
| 47 | private boolean mSearchExpanded; |
| 48 | private boolean mIgnoreNextClose; |
| 49 | |
Steve McKay | 18d01e8 | 2016-02-03 11:15:57 -0800 | [diff] [blame^] | 50 | private DocumentsToolbar mActionBar; |
Aga Wronska | 8788dad | 2016-01-15 17:30:15 -0800 | [diff] [blame] | 51 | private MenuItem mMenu; |
| 52 | private SearchView mView; |
| 53 | |
| 54 | public SearchManager(SearchManagerListener listener) { |
| 55 | mListener = listener; |
| 56 | } |
| 57 | |
| 58 | public void setSearchMangerListener(SearchManagerListener listener) { |
| 59 | mListener = listener; |
| 60 | } |
| 61 | |
Steve McKay | 18d01e8 | 2016-02-03 11:15:57 -0800 | [diff] [blame^] | 62 | public void install(DocumentsToolbar actionBar) { |
Aga Wronska | 8788dad | 2016-01-15 17:30:15 -0800 | [diff] [blame] | 63 | assert (mActionBar == null); |
| 64 | mActionBar = actionBar; |
| 65 | mMenu = actionBar.getSearchMenu(); |
| 66 | mView = (SearchView) mMenu.getActionView(); |
| 67 | |
| 68 | mView.setOnQueryTextListener(this); |
| 69 | mView.setOnCloseListener(this); |
| 70 | mView.setOnSearchClickListener(this); |
| 71 | mView.setOnQueryTextFocusChangeListener(this); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * @param root Info about the current directory. |
| 76 | */ |
| 77 | void update(RootInfo root) { |
| 78 | if (mMenu == null) { |
| 79 | Log.d(TAG, "update called before Search MenuItem installed."); |
| 80 | return; |
| 81 | } |
| 82 | |
| 83 | if (currentSearch != null) { |
| 84 | mMenu.expandActionView(); |
| 85 | |
| 86 | mView.setIconified(false); |
| 87 | mView.clearFocus(); |
| 88 | mView.setQuery(currentSearch, false); |
| 89 | } else { |
| 90 | mView.clearFocus(); |
| 91 | if (!mView.isIconified()) { |
| 92 | mIgnoreNextClose = true; |
| 93 | mView.setIconified(true); |
| 94 | } |
| 95 | |
| 96 | if (mMenu.isActionViewExpanded()) { |
| 97 | mMenu.collapseActionView(); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | showMenu(root != null |
| 102 | && ((root.flags & Root.FLAG_SUPPORTS_SEARCH) != 0)); |
| 103 | } |
| 104 | |
| 105 | void showMenu(boolean visible) { |
| 106 | if (mMenu == null) { |
| 107 | Log.d(TAG, "showMenu called before Search MenuItem installed."); |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | mMenu.setVisible(visible); |
| 112 | if (!visible) { |
| 113 | currentSearch = null; |
| 114 | if (mListener != null) { |
| 115 | mListener.onSearchQueryChanged(currentSearch); |
| 116 | } |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Cancels current search operation. Triggers clearing and collapsing the SearchView. |
| 122 | * |
| 123 | * @return True if it cancels search. False if it does not operate search currently. |
| 124 | */ |
| 125 | boolean cancelSearch() { |
| 126 | if (isExpanded() || isSearching()) { |
| 127 | // If the query string is not empty search view won't get iconified |
| 128 | mView.setQuery("", false); |
| 129 | // Causes calling onClose(). onClose() is triggering directory content update. |
| 130 | mView.setIconified(true); |
| 131 | return true; |
| 132 | } |
| 133 | return false; |
| 134 | } |
| 135 | |
| 136 | boolean isSearching() { |
| 137 | return currentSearch != null; |
| 138 | } |
| 139 | |
| 140 | boolean isExpanded() { |
| 141 | return mSearchExpanded; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Clears the search. Clears the SearchView background color. Triggers refreshing of the |
| 146 | * directory content. |
| 147 | * @return True if the default behavior of clearing/dismissing SearchView should be overridden. |
| 148 | * False otherwise. |
| 149 | */ |
| 150 | @Override |
| 151 | public boolean onClose() { |
| 152 | mSearchExpanded = false; |
| 153 | if (mIgnoreNextClose) { |
| 154 | mIgnoreNextClose = false; |
| 155 | return false; |
| 156 | } |
| 157 | |
| 158 | mView.setBackgroundColor( |
| 159 | mView.getResources().getColor(android.R.color.transparent, null)); |
| 160 | |
| 161 | // Refresh the directory if a search was done |
| 162 | if (currentSearch != null) { |
| 163 | currentSearch = null; |
| 164 | if (mListener != null) { |
| 165 | mListener.onSearchQueryChanged(currentSearch); |
| 166 | mListener.onSearchChanged(); |
| 167 | } |
| 168 | } |
| 169 | return false; |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Sets mSearchExpanded. Called when search icon is clicked to start search. Used to detect when |
| 174 | * the view expanded instead of onMenuItemActionExpand, because SearchView has showAsAction set |
| 175 | * to always and onMenuItemAction* methods are not called. |
| 176 | */ |
| 177 | @Override |
| 178 | public void onClick(View v) { |
| 179 | mSearchExpanded = true; |
| 180 | mView.setBackgroundColor( |
| 181 | mView.getResources().getColor(R.color.menu_search_background, null)); |
| 182 | } |
| 183 | |
| 184 | @Override |
| 185 | public boolean onQueryTextSubmit(String query) { |
| 186 | currentSearch = query; |
| 187 | mView.clearFocus(); |
| 188 | if (mListener != null) { |
| 189 | mListener.onSearchQueryChanged(currentSearch); |
| 190 | mListener.onSearchChanged(); |
| 191 | } |
| 192 | return true; |
| 193 | } |
| 194 | |
| 195 | @Override |
| 196 | public void onFocusChange(View v, boolean hasFocus) { |
| 197 | if (!hasFocus) { |
| 198 | if (currentSearch == null) { |
| 199 | mView.setIconified(true); |
| 200 | } else if (TextUtils.isEmpty(mView.getQuery())) { |
| 201 | cancelSearch(); |
| 202 | } |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | @Override |
| 207 | public boolean onQueryTextChange(String newText) { |
| 208 | return false; |
| 209 | } |
| 210 | } |