Adam Powell | b8139af | 2012-04-19 13:52:46 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 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.internal.view; |
| 18 | |
| 19 | import com.android.internal.R; |
| 20 | |
| 21 | import android.content.Context; |
| 22 | import android.content.res.Resources; |
| 23 | import android.content.res.TypedArray; |
| 24 | import android.os.Build; |
Adam Powell | b8139af | 2012-04-19 13:52:46 -0700 | [diff] [blame] | 25 | |
| 26 | /** |
| 27 | * Allows components to query for various configuration policy decisions |
| 28 | * about how the action bar should lay out and behave on the current device. |
| 29 | */ |
| 30 | public class ActionBarPolicy { |
| 31 | private Context mContext; |
| 32 | |
| 33 | public static ActionBarPolicy get(Context context) { |
| 34 | return new ActionBarPolicy(context); |
| 35 | } |
| 36 | |
| 37 | private ActionBarPolicy(Context context) { |
| 38 | mContext = context; |
| 39 | } |
| 40 | |
| 41 | public int getMaxActionButtons() { |
| 42 | return mContext.getResources().getInteger(R.integer.max_action_buttons); |
| 43 | } |
| 44 | |
| 45 | public boolean showsOverflowMenuButton() { |
Adam Powell | ea04f3c | 2013-07-11 13:25:58 -0700 | [diff] [blame] | 46 | return true; |
Adam Powell | b8139af | 2012-04-19 13:52:46 -0700 | [diff] [blame] | 47 | } |
| 48 | |
| 49 | public int getEmbeddedMenuWidthLimit() { |
| 50 | return mContext.getResources().getDisplayMetrics().widthPixels / 2; |
| 51 | } |
| 52 | |
| 53 | public boolean hasEmbeddedTabs() { |
| 54 | final int targetSdk = mContext.getApplicationInfo().targetSdkVersion; |
| 55 | if (targetSdk >= Build.VERSION_CODES.JELLY_BEAN) { |
| 56 | return mContext.getResources().getBoolean(R.bool.action_bar_embed_tabs); |
| 57 | } |
| 58 | |
| 59 | // The embedded tabs policy changed in Jellybean; give older apps the old policy |
| 60 | // so they get what they expect. |
| 61 | return mContext.getResources().getBoolean(R.bool.action_bar_embed_tabs_pre_jb); |
| 62 | } |
| 63 | |
| 64 | public int getTabContainerHeight() { |
| 65 | TypedArray a = mContext.obtainStyledAttributes(null, R.styleable.ActionBar, |
| 66 | com.android.internal.R.attr.actionBarStyle, 0); |
| 67 | int height = a.getLayoutDimension(R.styleable.ActionBar_height, 0); |
| 68 | Resources r = mContext.getResources(); |
| 69 | if (!hasEmbeddedTabs()) { |
| 70 | // Stacked tabs; limit the height |
| 71 | height = Math.min(height, |
| 72 | r.getDimensionPixelSize(R.dimen.action_bar_stacked_max_height)); |
| 73 | } |
| 74 | a.recycle(); |
| 75 | return height; |
| 76 | } |
| 77 | |
| 78 | public boolean enableHomeButtonByDefault() { |
| 79 | // Older apps get the home button interaction enabled by default. |
| 80 | // Newer apps need to enable it explicitly. |
| 81 | return mContext.getApplicationInfo().targetSdkVersion < |
| 82 | Build.VERSION_CODES.ICE_CREAM_SANDWICH; |
| 83 | } |
| 84 | |
| 85 | public int getStackedTabMaxWidth() { |
| 86 | return mContext.getResources().getDimensionPixelSize( |
| 87 | R.dimen.action_bar_stacked_tab_max_width); |
| 88 | } |
| 89 | } |