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; 226c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynskiimport android.content.res.Configuration; 23b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.content.res.Resources; 24b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.content.res.TypedArray; 25b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellimport android.os.Build; 26b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 27b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell/** 28b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * Allows components to query for various configuration policy decisions 29b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell * about how the action bar should lay out and behave on the current device. 30b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell */ 31b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powellpublic class ActionBarPolicy { 32b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell private Context mContext; 33b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 34b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public static ActionBarPolicy get(Context context) { 35b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return new ActionBarPolicy(context); 36b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 37b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 38b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell private ActionBarPolicy(Context context) { 39b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell mContext = context; 40b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 41b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 426c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski /** 436c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski * Returns the maximum number of action buttons that should be permitted within an action 446c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski * bar/action mode. This will be used to determine how many showAsAction="ifRoom" items can fit. 456c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski * "always" items can override this. 466c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski */ 47b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getMaxActionButtons() { 486c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski final Configuration config = mContext.getResources().getConfiguration(); 496c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski final int width = config.screenWidthDp; 506c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski final int height = config.screenHeightDp; 516c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski final int smallest = config.smallestScreenWidthDp; 526c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski if (smallest > 600 || (width > 960 && height > 720) || (width > 720 && height > 960)) { 536c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski // For values-w600dp, values-sw600dp and values-xlarge. 546c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski return 5; 556c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski } else if (width >= 500 || (width > 640 && height > 480) || (width > 480 && height > 640)) { 566c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski // For values-w500dp and values-large. 576c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski return 4; 586c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski } else if (width >= 360) { 596c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski // For values-w360dp. 606c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski return 3; 616c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski } else { 626c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski return 2; 636c54e72892bdddd8453cfce40725ed3159d53b11Filip Gruszczynski } 64b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 65b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public boolean showsOverflowMenuButton() { 66ea04f3cfc6e245fb415fd352ed0048cd940a46feAdam Powell return true; 67b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 68b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 69b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getEmbeddedMenuWidthLimit() { 70b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getDisplayMetrics().widthPixels / 2; 71b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 72b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 73b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public boolean hasEmbeddedTabs() { 74b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell final int targetSdk = mContext.getApplicationInfo().targetSdkVersion; 75b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell if (targetSdk >= Build.VERSION_CODES.JELLY_BEAN) { 76b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getBoolean(R.bool.action_bar_embed_tabs); 77b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 78b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 79b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // The embedded tabs policy changed in Jellybean; give older apps the old policy 80b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // so they get what they expect. 81b635fdaf22795817f9417c475e82bfb0191dd5bdFilip Gruszczynski final Configuration configuration = mContext.getResources().getConfiguration(); 82b635fdaf22795817f9417c475e82bfb0191dd5bdFilip Gruszczynski final int width = configuration.screenWidthDp; 83b635fdaf22795817f9417c475e82bfb0191dd5bdFilip Gruszczynski final int height = configuration.screenHeightDp; 84b635fdaf22795817f9417c475e82bfb0191dd5bdFilip Gruszczynski return configuration.orientation == Configuration.ORIENTATION_LANDSCAPE || 85b635fdaf22795817f9417c475e82bfb0191dd5bdFilip Gruszczynski width >= 480 || (width >= 640 && height >= 480); 86b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 87b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 88b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getTabContainerHeight() { 89b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell TypedArray a = mContext.obtainStyledAttributes(null, R.styleable.ActionBar, 90b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell com.android.internal.R.attr.actionBarStyle, 0); 91b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell int height = a.getLayoutDimension(R.styleable.ActionBar_height, 0); 92b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell Resources r = mContext.getResources(); 93b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell if (!hasEmbeddedTabs()) { 94b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // Stacked tabs; limit the height 95b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell height = Math.min(height, 96b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell r.getDimensionPixelSize(R.dimen.action_bar_stacked_max_height)); 97b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 98b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell a.recycle(); 99b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return height; 100b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 101b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 102b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public boolean enableHomeButtonByDefault() { 103b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // Older apps get the home button interaction enabled by default. 104b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell // Newer apps need to enable it explicitly. 105b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getApplicationInfo().targetSdkVersion < 106b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell Build.VERSION_CODES.ICE_CREAM_SANDWICH; 107b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 108b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell 109b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell public int getStackedTabMaxWidth() { 110b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell return mContext.getResources().getDimensionPixelSize( 111b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell R.dimen.action_bar_stacked_tab_max_width); 112b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell } 113b8139af3dcae80c0030afd0354dc424a7c72c3d9Adam Powell} 114