1b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell/* 2b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * Copyright (C) 2012 The Android Open Source Project 3b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * 4b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * Licensed under the Apache License, Version 2.0 (the "License"); 5b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * you may not use this file except in compliance with the License. 6b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * You may obtain a copy of the License at 7b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * 8b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * http://www.apache.org/licenses/LICENSE-2.0 9b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * 10b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * Unless required by applicable law or agreed to in writing, software 11b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * distributed under the License is distributed on an "AS IS" BASIS, 12b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * See the License for the specific language governing permissions and 14b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * limitations under the License. 15b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell */ 16b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 17b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellpackage com.android.internal.view; 18b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 19b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport com.android.internal.R; 20b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 21b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.content.Context; 22b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.content.res.Resources; 23b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.content.res.TypedArray; 24b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.os.Build; 25b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 26b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell/** 27b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * Allows components to query for various configuration policy decisions 28b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * about how the action bar should lay out and behave on the current device. 29b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell */ 30b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellpublic class ActionBarPolicy { 31b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell private Context mContext; 32b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 33b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public static ActionBarPolicy get(Context context) { 34b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return new ActionBarPolicy(context); 35b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 36b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 37b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell private ActionBarPolicy(Context context) { 38b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell mContext = context; 39b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 40b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 41b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getMaxActionButtons() { 42b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getInteger(R.integer.max_action_buttons); 43b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 44b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 45b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public boolean showsOverflowMenuButton() { 46ea04f3cfc6e245fb415fd352ed0048cd940a46feAdam Powell return true; 47b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 48b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 49b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getEmbeddedMenuWidthLimit() { 50b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getDisplayMetrics().widthPixels / 2; 51b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 52b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 53b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public boolean hasEmbeddedTabs() { 54b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell final int targetSdk = mContext.getApplicationInfo().targetSdkVersion; 55b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell if (targetSdk >= Build.VERSION_CODES.JELLY_BEAN) { 56b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getBoolean(R.bool.action_bar_embed_tabs); 57b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 58b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 59b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // The embedded tabs policy changed in Jellybean; give older apps the old policy 60b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // so they get what they expect. 61b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getBoolean(R.bool.action_bar_embed_tabs_pre_jb); 62b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 63b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 64b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getTabContainerHeight() { 65b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell TypedArray a = mContext.obtainStyledAttributes(null, R.styleable.ActionBar, 66b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell com.android.internal.R.attr.actionBarStyle, 0); 67b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell int height = a.getLayoutDimension(R.styleable.ActionBar_height, 0); 68b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell Resources r = mContext.getResources(); 69b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell if (!hasEmbeddedTabs()) { 70b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // Stacked tabs; limit the height 71b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell height = Math.min(height, 72b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell r.getDimensionPixelSize(R.dimen.action_bar_stacked_max_height)); 73b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 74b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell a.recycle(); 75b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return height; 76b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 77b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 78b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public boolean enableHomeButtonByDefault() { 79b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // Older apps get the home button interaction enabled by default. 80b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // Newer apps need to enable it explicitly. 81b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getApplicationInfo().targetSdkVersion < 82b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell Build.VERSION_CODES.ICE_CREAM_SANDWICH; 83b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 84b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 85b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getStackedTabMaxWidth() { 86b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getDimensionPixelSize( 87b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell R.dimen.action_bar_stacked_tab_max_width); 88b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 89b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell} 90