Mark Renouf | 91eb265 | 2016-04-11 16:03:26 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 android.inputmethodservice; |
| 18 | |
| 19 | import android.content.Context; |
Mark Renouf | d1a0d19 | 2017-03-29 16:08:21 -0400 | [diff] [blame] | 20 | import android.content.res.Configuration; |
Mark Renouf | 91eb265 | 2016-04-11 16:03:26 -0400 | [diff] [blame] | 21 | import android.content.res.Resources; |
| 22 | import android.annotation.FractionRes; |
| 23 | import android.util.AttributeSet; |
| 24 | import android.util.DisplayMetrics; |
| 25 | import android.view.Gravity; |
| 26 | import android.view.View; |
| 27 | import android.view.ViewGroup; |
Mark Renouf | d1a0d19 | 2017-03-29 16:08:21 -0400 | [diff] [blame] | 28 | import android.view.WindowInsets; |
Mark Renouf | 91eb265 | 2016-04-11 16:03:26 -0400 | [diff] [blame] | 29 | import android.widget.LinearLayout; |
| 30 | |
| 31 | /** |
| 32 | * A special purpose layout for the editor extract view for tiny (sub 250dp) screens. |
| 33 | * The layout is based on sizes proportional to screen pixel size to provide for the |
| 34 | * best layout fidelity on varying pixel sizes and densities. |
| 35 | * |
| 36 | * @hide |
| 37 | */ |
| 38 | public class CompactExtractEditLayout extends LinearLayout { |
| 39 | private View mInputExtractEditText; |
| 40 | private View mInputExtractAccessories; |
| 41 | private View mInputExtractAction; |
| 42 | private boolean mPerformLayoutChanges; |
| 43 | |
| 44 | public CompactExtractEditLayout(Context context) { |
| 45 | super(context); |
| 46 | } |
| 47 | |
| 48 | public CompactExtractEditLayout(Context context, AttributeSet attrs) { |
| 49 | super(context, attrs); |
| 50 | } |
| 51 | |
| 52 | public CompactExtractEditLayout(Context context, AttributeSet attrs, int defStyleAttr) { |
| 53 | super(context, attrs, defStyleAttr); |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | protected void onFinishInflate() { |
| 58 | super.onFinishInflate(); |
| 59 | mInputExtractEditText = findViewById(com.android.internal.R.id.inputExtractEditText); |
| 60 | mInputExtractAccessories = findViewById(com.android.internal.R.id.inputExtractAccessories); |
| 61 | mInputExtractAction = findViewById(com.android.internal.R.id.inputExtractAction); |
| 62 | |
| 63 | if (mInputExtractEditText != null && mInputExtractAccessories != null |
| 64 | && mInputExtractAction != null) { |
| 65 | mPerformLayoutChanges = true; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | private int applyFractionInt(@FractionRes int fraction, int whole) { |
| 70 | return Math.round(getResources().getFraction(fraction, whole, whole)); |
| 71 | } |
| 72 | |
| 73 | private static void setLayoutHeight(View v, int px) { |
| 74 | ViewGroup.LayoutParams lp = v.getLayoutParams(); |
| 75 | lp.height = px; |
| 76 | v.setLayoutParams(lp); |
| 77 | } |
| 78 | |
| 79 | private static void setLayoutMarginBottom(View v, int px) { |
| 80 | ViewGroup.MarginLayoutParams lp = (MarginLayoutParams) v.getLayoutParams(); |
| 81 | lp.bottomMargin = px; |
| 82 | v.setLayoutParams(lp); |
| 83 | } |
| 84 | |
| 85 | private void applyProportionalLayout(int screenWidthPx, int screenHeightPx) { |
| 86 | if (getResources().getConfiguration().isScreenRound()) { |
| 87 | setGravity(Gravity.BOTTOM); |
| 88 | } |
| 89 | setLayoutHeight(this, applyFractionInt( |
| 90 | com.android.internal.R.fraction.input_extract_layout_height, screenHeightPx)); |
| 91 | |
| 92 | setPadding( |
| 93 | applyFractionInt(com.android.internal.R.fraction.input_extract_layout_padding_left, |
| 94 | screenWidthPx), |
| 95 | 0, |
| 96 | applyFractionInt(com.android.internal.R.fraction.input_extract_layout_padding_right, |
| 97 | screenWidthPx), |
| 98 | 0); |
| 99 | |
| 100 | setLayoutMarginBottom(mInputExtractEditText, |
| 101 | applyFractionInt(com.android.internal.R.fraction.input_extract_text_margin_bottom, |
| 102 | screenHeightPx)); |
| 103 | |
| 104 | setLayoutMarginBottom(mInputExtractAccessories, |
| 105 | applyFractionInt(com.android.internal.R.fraction.input_extract_action_margin_bottom, |
| 106 | screenHeightPx)); |
| 107 | } |
| 108 | |
| 109 | @Override |
| 110 | protected void onAttachedToWindow() { |
| 111 | super.onAttachedToWindow(); |
| 112 | if (mPerformLayoutChanges) { |
| 113 | Resources res = getResources(); |
Mark Renouf | d1a0d19 | 2017-03-29 16:08:21 -0400 | [diff] [blame] | 114 | Configuration cfg = res.getConfiguration(); |
Mark Renouf | 91eb265 | 2016-04-11 16:03:26 -0400 | [diff] [blame] | 115 | DisplayMetrics dm = res.getDisplayMetrics(); |
Mark Renouf | 91eb265 | 2016-04-11 16:03:26 -0400 | [diff] [blame] | 116 | int widthPixels = dm.widthPixels; |
Mark Renouf | d1a0d19 | 2017-03-29 16:08:21 -0400 | [diff] [blame] | 117 | int heightPixels = dm.heightPixels; |
| 118 | |
| 119 | // Percentages must be based on the pixel height of the full (apparent) display height |
| 120 | // which is sometimes different from display metrics. |
| 121 | // |
| 122 | // On a round device, a display height smaller than width indicates a chin (cropped |
| 123 | // edge of the display) for which there is no screen buffer allocated. This is |
| 124 | // typically 25-35px in height. |
| 125 | // |
| 126 | // getRootWindowInsets() does not function for InputMethod windows (always null). |
| 127 | // Instead just set height to match width if less. This is safe because round wear |
| 128 | // devices are by definition 1:1 aspect ratio. |
| 129 | |
| 130 | if (cfg.isScreenRound() && heightPixels < widthPixels) { |
| 131 | heightPixels = widthPixels; |
| 132 | } |
Mark Renouf | 91eb265 | 2016-04-11 16:03:26 -0400 | [diff] [blame] | 133 | applyProportionalLayout(widthPixels, heightPixels); |
| 134 | } |
| 135 | } |
| 136 | } |