1/* 2 * Copyright (C) 2014 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 */ 16package androidx.appcompat.view; 17 18import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP; 19 20import android.content.Context; 21import android.view.Menu; 22import android.view.MenuInflater; 23import android.view.MenuItem; 24import android.view.View; 25import android.view.accessibility.AccessibilityEvent; 26 27import androidx.annotation.RestrictTo; 28import androidx.appcompat.view.menu.MenuBuilder; 29import androidx.appcompat.view.menu.MenuPopupHelper; 30import androidx.appcompat.view.menu.SubMenuBuilder; 31import androidx.appcompat.widget.ActionBarContextView; 32 33import java.lang.ref.WeakReference; 34 35/** 36 * @hide 37 */ 38@RestrictTo(LIBRARY_GROUP) 39public class StandaloneActionMode extends ActionMode implements MenuBuilder.Callback { 40 private Context mContext; 41 private ActionBarContextView mContextView; 42 private ActionMode.Callback mCallback; 43 private WeakReference<View> mCustomView; 44 private boolean mFinished; 45 private boolean mFocusable; 46 47 private MenuBuilder mMenu; 48 49 public StandaloneActionMode(Context context, ActionBarContextView view, 50 ActionMode.Callback callback, boolean isFocusable) { 51 mContext = context; 52 mContextView = view; 53 mCallback = callback; 54 55 mMenu = new MenuBuilder(view.getContext()).setDefaultShowAsAction( 56 MenuItem.SHOW_AS_ACTION_IF_ROOM); 57 mMenu.setCallback(this); 58 mFocusable = isFocusable; 59 } 60 61 @Override 62 public void setTitle(CharSequence title) { 63 mContextView.setTitle(title); 64 } 65 66 @Override 67 public void setSubtitle(CharSequence subtitle) { 68 mContextView.setSubtitle(subtitle); 69 } 70 71 @Override 72 public void setTitle(int resId) { 73 setTitle(mContext.getString(resId)); 74 } 75 76 @Override 77 public void setSubtitle(int resId) { 78 setSubtitle(mContext.getString(resId)); 79 } 80 81 @Override 82 public void setTitleOptionalHint(boolean titleOptional) { 83 super.setTitleOptionalHint(titleOptional); 84 mContextView.setTitleOptional(titleOptional); 85 } 86 87 @Override 88 public boolean isTitleOptional() { 89 return mContextView.isTitleOptional(); 90 } 91 92 @Override 93 public void setCustomView(View view) { 94 mContextView.setCustomView(view); 95 mCustomView = view != null ? new WeakReference<View>(view) : null; 96 } 97 98 @Override 99 public void invalidate() { 100 mCallback.onPrepareActionMode(this, mMenu); 101 } 102 103 @Override 104 public void finish() { 105 if (mFinished) { 106 return; 107 } 108 mFinished = true; 109 110 mContextView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 111 mCallback.onDestroyActionMode(this); 112 } 113 114 @Override 115 public Menu getMenu() { 116 return mMenu; 117 } 118 119 @Override 120 public CharSequence getTitle() { 121 return mContextView.getTitle(); 122 } 123 124 @Override 125 public CharSequence getSubtitle() { 126 return mContextView.getSubtitle(); 127 } 128 129 @Override 130 public View getCustomView() { 131 return mCustomView != null ? mCustomView.get() : null; 132 } 133 134 @Override 135 public MenuInflater getMenuInflater() { 136 return new SupportMenuInflater(mContextView.getContext()); 137 } 138 139 @Override 140 public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) { 141 return mCallback.onActionItemClicked(this, item); 142 } 143 144 public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { 145 } 146 147 public boolean onSubMenuSelected(SubMenuBuilder subMenu) { 148 if (!subMenu.hasVisibleItems()) { 149 return true; 150 } 151 152 new MenuPopupHelper(mContextView.getContext(), subMenu).show(); 153 return true; 154 } 155 156 public void onCloseSubMenu(SubMenuBuilder menu) { 157 } 158 159 @Override 160 public void onMenuModeChange(MenuBuilder menu) { 161 invalidate(); 162 mContextView.showOverflowMenu(); 163 } 164 165 @Override 166 public boolean isUiFocusable() { 167 return mFocusable; 168 } 169} 170