Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | |
Aga Wronska | 5df5036 | 2016-03-08 11:20:39 -0800 | [diff] [blame] | 19 | import static com.android.documentsui.Shared.DEBUG; |
| 20 | |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 21 | import android.app.Activity; |
Aga Wronska | 5df5036 | 2016-03-08 11:20:39 -0800 | [diff] [blame] | 22 | import android.content.Context; |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 23 | import android.support.v4.app.ActionBarDrawerToggle; |
| 24 | import android.support.v4.widget.DrawerLayout; |
| 25 | import android.support.v4.widget.DrawerLayout.DrawerListener; |
Aga Wronska | 5df5036 | 2016-03-08 11:20:39 -0800 | [diff] [blame] | 26 | import android.util.Log; |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 27 | import android.view.View; |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 28 | import android.widget.Toolbar; |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 29 | |
| 30 | /** |
| 31 | * A facade over the various pieces comprising "roots fragment in a Drawer". |
| 32 | * |
| 33 | * @see DrawerController#create(DrawerLayout) |
| 34 | */ |
| 35 | abstract class DrawerController implements DrawerListener { |
| 36 | |
Aga Wronska | 5df5036 | 2016-03-08 11:20:39 -0800 | [diff] [blame] | 37 | public static final String TAG = "DrawerController"; |
| 38 | |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 39 | abstract void setOpen(boolean open); |
Steve McKay | 1205547 | 2015-08-20 16:48:49 -0700 | [diff] [blame] | 40 | abstract boolean isPresent(); |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 41 | abstract boolean isOpen(); |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 42 | abstract void setTitle(String title); |
| 43 | abstract void update(); |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 44 | |
| 45 | /** |
| 46 | * Returns a controller suitable for {@code Layout}. |
| 47 | */ |
| 48 | static DrawerController create(Activity activity) { |
| 49 | |
| 50 | DrawerLayout layout = (DrawerLayout) activity.findViewById(R.id.drawer_layout); |
| 51 | |
| 52 | if (layout == null) { |
| 53 | return new DummyDrawerController(); |
| 54 | } |
| 55 | |
| 56 | View drawer = activity.findViewById(R.id.drawer_roots); |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 57 | Toolbar toolbar = (Toolbar) activity.findViewById(R.id.roots_toolbar); |
| 58 | |
Aga Wronska | 5df5036 | 2016-03-08 11:20:39 -0800 | [diff] [blame] | 59 | drawer.getLayoutParams().width = calculateDrawerWidth(activity); |
| 60 | |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 61 | ActionBarDrawerToggle toggle = new ActionBarDrawerToggle( |
| 62 | activity, |
| 63 | layout, |
| 64 | R.drawable.ic_hamburger, |
| 65 | R.string.drawer_open, |
| 66 | R.string.drawer_close); |
| 67 | |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 68 | return new RuntimeDrawerController(layout, drawer, toggle, toolbar); |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Returns a controller suitable for {@code Layout}. |
| 73 | */ |
| 74 | static DrawerController createDummy() { |
| 75 | return new DummyDrawerController(); |
| 76 | } |
| 77 | |
Aga Wronska | 5df5036 | 2016-03-08 11:20:39 -0800 | [diff] [blame] | 78 | private static int calculateDrawerWidth(Activity activity) { |
| 79 | // Material design specification for navigation drawer: |
| 80 | // https://www.google.com/design/spec/patterns/navigation-drawer.html |
| 81 | float width = Display.screenWidth(activity) - Display.actionBarHeight(activity); |
| 82 | float maxWidth = activity.getResources().getDimension(R.dimen.max_drawer_width); |
| 83 | int finalWidth = (int) ((width > maxWidth ? maxWidth : width)); |
| 84 | |
| 85 | if (DEBUG) |
| 86 | Log.d(TAG, "Calculated drawer width:" + (finalWidth / Display.density(activity))); |
| 87 | |
| 88 | return finalWidth; |
| 89 | } |
| 90 | |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 91 | /** |
| 92 | * Runtime controller that manages a real drawer. |
| 93 | */ |
| 94 | private static final class RuntimeDrawerController extends DrawerController { |
| 95 | |
| 96 | private final ActionBarDrawerToggle mToggle; |
| 97 | private DrawerLayout mLayout; |
| 98 | private View mDrawer; |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 99 | private Toolbar mToolbar; |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 100 | |
| 101 | public RuntimeDrawerController( |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 102 | DrawerLayout layout, View drawer, ActionBarDrawerToggle toggle, |
| 103 | Toolbar drawerToolbar) { |
| 104 | mToolbar = drawerToolbar; |
Steve McKay | a1f7680 | 2016-02-25 13:34:03 -0800 | [diff] [blame] | 105 | assert(layout != null); |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 106 | |
| 107 | mLayout = layout; |
| 108 | mDrawer = drawer; |
| 109 | mToggle = toggle; |
| 110 | |
| 111 | mLayout.setDrawerListener(this); |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | void setOpen(boolean open) { |
| 116 | if (open) { |
| 117 | mLayout.openDrawer(mDrawer); |
| 118 | } else { |
| 119 | mLayout.closeDrawer(mDrawer); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | boolean isOpen() { |
| 125 | return mLayout.isDrawerOpen(mDrawer); |
| 126 | } |
| 127 | |
| 128 | @Override |
Steve McKay | 1205547 | 2015-08-20 16:48:49 -0700 | [diff] [blame] | 129 | boolean isPresent() { |
| 130 | return true; |
| 131 | } |
| 132 | |
| 133 | @Override |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 134 | void setTitle(String title) { |
| 135 | mToolbar.setTitle(title); |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | void update() { |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 140 | mToggle.syncState(); |
| 141 | } |
| 142 | |
| 143 | @Override |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 144 | public void onDrawerSlide(View drawerView, float slideOffset) { |
| 145 | mToggle.onDrawerSlide(drawerView, slideOffset); |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public void onDrawerOpened(View drawerView) { |
| 150 | mToggle.onDrawerOpened(drawerView); |
| 151 | } |
| 152 | |
| 153 | @Override |
| 154 | public void onDrawerClosed(View drawerView) { |
| 155 | mToggle.onDrawerClosed(drawerView); |
| 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public void onDrawerStateChanged(int newState) { |
| 160 | mToggle.onDrawerStateChanged(newState); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /* |
| 165 | * Dummy controller useful with clients that don't host a real drawer. |
| 166 | */ |
| 167 | private static final class DummyDrawerController extends DrawerController { |
| 168 | |
| 169 | @Override |
Steve McKay | 1205547 | 2015-08-20 16:48:49 -0700 | [diff] [blame] | 170 | void setOpen(boolean open) {} |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 171 | |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 172 | |
| 173 | @Override |
Steve McKay | 1205547 | 2015-08-20 16:48:49 -0700 | [diff] [blame] | 174 | boolean isOpen() { |
| 175 | return false; |
| 176 | } |
| 177 | |
| 178 | @Override |
Steve McKay | 1205547 | 2015-08-20 16:48:49 -0700 | [diff] [blame] | 179 | boolean isPresent() { |
| 180 | return false; |
| 181 | } |
| 182 | |
| 183 | @Override |
Steve McKay | 1f264a8 | 2016-02-03 11:15:57 -0800 | [diff] [blame] | 184 | void setTitle(String title) {} |
| 185 | |
| 186 | @Override |
| 187 | void update() {} |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 188 | |
| 189 | @Override |
| 190 | public void onDrawerSlide(View drawerView, float slideOffset) {} |
| 191 | |
| 192 | @Override |
| 193 | public void onDrawerOpened(View drawerView) {} |
| 194 | |
| 195 | @Override |
| 196 | public void onDrawerClosed(View drawerView) {} |
| 197 | |
| 198 | @Override |
| 199 | public void onDrawerStateChanged(int newState) {} |
Steve McKay | 4f16040 | 2015-08-17 13:18:05 -0700 | [diff] [blame] | 200 | } |
| 201 | } |