toad.city
That fuck shit the fascists are using
1/**
2 * Copyright (C) 2014 Open Whisper Systems
3 * <p>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 * <p>
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * <p>
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17package org.tm.archive.components;
18
19import android.content.Context;
20import android.graphics.Rect;
21import android.os.Build;
22import android.preference.PreferenceManager;
23import android.util.AttributeSet;
24import android.util.DisplayMetrics;
25import android.view.Surface;
26import android.view.View;
27import android.view.WindowInsets;
28
29import androidx.appcompat.widget.LinearLayoutCompat;
30
31import org.signal.core.util.logging.Log;
32import org.tm.archive.R;
33import org.tm.archive.util.ServiceUtil;
34import org.tm.archive.util.Util;
35import org.tm.archive.util.ViewUtil;
36
37import java.lang.reflect.Field;
38import java.util.HashSet;
39import java.util.Set;
40
41/**
42 * LinearLayout that, when a view container, will report back when it thinks a soft keyboard
43 * has been opened and what its height would be.
44 */
45public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
46 private static final String TAG = Log.tag(KeyboardAwareLinearLayout.class);
47
48 private static final long KEYBOARD_DEBOUNCE = 150;
49
50 private final Rect rect = new Rect();
51 private final Set<OnKeyboardHiddenListener> hiddenListeners = new HashSet<>();
52 private final Set<OnKeyboardShownListener> shownListeners = new HashSet<>();
53 private final DisplayMetrics displayMetrics = new DisplayMetrics();
54
55 private final int minKeyboardSize;
56 private final int minCustomKeyboardSize;
57 private final int defaultCustomKeyboardSize;
58 private final int minCustomKeyboardTopMarginPortrait;
59 private final int minCustomKeyboardTopMarginLandscape;
60 private final int minCustomKeyboardTopMarginLandscapeBubble;
61 private final int statusBarHeight;
62
63 private int viewInset;
64
65 private boolean keyboardOpen = false;
66 private int rotation = 0;
67 private boolean isBubble = false;
68 private long openedAt = 0;
69
70 public KeyboardAwareLinearLayout(Context context) {
71 this(context, null);
72 }
73
74 public KeyboardAwareLinearLayout(Context context, AttributeSet attrs) {
75 this(context, attrs, 0);
76 }
77
78 public KeyboardAwareLinearLayout(Context context, AttributeSet attrs, int defStyle) {
79 super(context, attrs, defStyle);
80 minKeyboardSize = getResources().getDimensionPixelSize(R.dimen.min_keyboard_size);
81 minCustomKeyboardSize = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_size);
82 defaultCustomKeyboardSize = getResources().getDimensionPixelSize(R.dimen.default_custom_keyboard_size);
83 minCustomKeyboardTopMarginPortrait = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_top_margin_portrait);
84 minCustomKeyboardTopMarginLandscape = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_top_margin_portrait);
85 minCustomKeyboardTopMarginLandscapeBubble = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_top_margin_landscape_bubble);
86 statusBarHeight = ViewUtil.getStatusBarHeight(this);
87 viewInset = getViewInset();
88 }
89
90 @Override
91 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
92 updateRotation();
93 updateKeyboardState();
94 super.onMeasure(widthMeasureSpec, heightMeasureSpec);
95 }
96
97 public void setIsBubble(boolean isBubble) {
98 this.isBubble = isBubble;
99 }
100
101 private void updateRotation() {
102 int oldRotation = rotation;
103 rotation = getDeviceRotation();
104 if (oldRotation != rotation) {
105 Log.i(TAG, "rotation changed");
106 onKeyboardClose();
107 }
108 }
109
110 private void updateKeyboardState() {
111 if (viewInset == 0) viewInset = getViewInset();
112
113 getWindowVisibleDisplayFrame(rect);
114
115 final int availableHeight = getAvailableHeight();
116 final int keyboardHeight = availableHeight - rect.bottom;
117
118 if (keyboardHeight > minKeyboardSize) {
119 if (getKeyboardHeight() != keyboardHeight) {
120 if (isLandscape()) {
121 setKeyboardLandscapeHeight(keyboardHeight);
122 } else {
123 setKeyboardPortraitHeight(keyboardHeight);
124 }
125 }
126 if (!keyboardOpen) {
127 onKeyboardOpen(keyboardHeight);
128 }
129 } else if (keyboardOpen) {
130 onKeyboardClose();
131 }
132 }
133
134 @Override
135 protected void onAttachedToWindow() {
136 super.onAttachedToWindow();
137 rotation = getDeviceRotation();
138 if (Build.VERSION.SDK_INT >= 23 && getRootWindowInsets() != null) {
139 int bottomInset;
140 WindowInsets windowInsets = getRootWindowInsets();
141
142 if (Build.VERSION.SDK_INT >= 30) {
143 bottomInset = windowInsets.getInsets(WindowInsets.Type.navigationBars()).bottom;
144 } else {
145 bottomInset = windowInsets.getStableInsetBottom();
146 }
147
148 if (bottomInset != 0 && (viewInset == 0 || viewInset == statusBarHeight)) {
149 Log.i(TAG, "Updating view inset based on WindowInsets. viewInset: " + viewInset + " windowInset: " + bottomInset);
150 viewInset = bottomInset;
151 }
152 }
153 }
154
155 private int getViewInset() {
156 try {
157 Field attachInfoField = View.class.getDeclaredField("mAttachInfo");
158 attachInfoField.setAccessible(true);
159 Object attachInfo = attachInfoField.get(this);
160 if (attachInfo != null) {
161 Field stableInsetsField = attachInfo.getClass().getDeclaredField("mStableInsets");
162 stableInsetsField.setAccessible(true);
163 Rect insets = (Rect) stableInsetsField.get(attachInfo);
164 if (insets != null) {
165 return insets.bottom;
166 }
167 }
168 } catch (NoSuchFieldException | IllegalAccessException e) {
169 // Do nothing
170 }
171 return statusBarHeight;
172 }
173
174 private int getAvailableHeight() {
175 final int availableHeight = this.getRootView().getHeight() - viewInset;
176 final int availableWidth = this.getRootView().getWidth();
177
178 if (isLandscape() && availableHeight > availableWidth) {
179 //noinspection SuspiciousNameCombination
180 return availableWidth;
181 }
182
183 return availableHeight;
184 }
185
186 protected void onKeyboardOpen(int keyboardHeight) {
187 Log.i(TAG, "onKeyboardOpen(" + keyboardHeight + ")");
188 keyboardOpen = true;
189 openedAt = System.currentTimeMillis();
190
191 notifyShownListeners();
192 }
193
194 protected void onKeyboardClose() {
195 if (System.currentTimeMillis() - openedAt < KEYBOARD_DEBOUNCE) {
196 Log.i(TAG, "Delaying onKeyboardClose()");
197 postDelayed(this::updateKeyboardState, KEYBOARD_DEBOUNCE);
198 return;
199 }
200
201 Log.i(TAG, "onKeyboardClose()");
202 keyboardOpen = false;
203 openedAt = 0;
204 notifyHiddenListeners();
205 }
206
207 public boolean isKeyboardOpen() {
208 return keyboardOpen;
209 }
210
211 public int getKeyboardHeight() {
212 return isLandscape() ? getKeyboardLandscapeHeight() : getKeyboardPortraitHeight();
213 }
214
215 public boolean isLandscape() {
216 int rotation = getDeviceRotation();
217 return rotation == Surface.ROTATION_90 || rotation == Surface.ROTATION_270;
218 }
219
220 private int getDeviceRotation() {
221 if (isInEditMode()) {
222 return Surface.ROTATION_0;
223 }
224
225 if (Build.VERSION.SDK_INT >= 30) {
226 getContext().getDisplay().getRealMetrics(displayMetrics);
227 } else {
228 ServiceUtil.getWindowManager(getContext()).getDefaultDisplay().getRealMetrics(displayMetrics);
229 }
230 return displayMetrics.widthPixels > displayMetrics.heightPixels ? Surface.ROTATION_90 : Surface.ROTATION_0;
231 }
232
233 private int getKeyboardLandscapeHeight() {
234 if (isBubble) {
235 return getRootView().getHeight() - minCustomKeyboardTopMarginLandscapeBubble;
236 }
237
238 int keyboardHeight = PreferenceManager.getDefaultSharedPreferences(getContext())
239 .getInt("keyboard_height_landscape", defaultCustomKeyboardSize);
240 return Util.clamp(keyboardHeight, minCustomKeyboardSize, getRootView().getHeight() - minCustomKeyboardTopMarginLandscape);
241 }
242
243 private int getKeyboardPortraitHeight() {
244 if (isBubble) {
245 int height = getRootView().getHeight();
246 return height - (int)(height * 0.45);
247 }
248
249 int keyboardHeight = PreferenceManager.getDefaultSharedPreferences(getContext())
250 .getInt("keyboard_height_portrait", defaultCustomKeyboardSize);
251 return Util.clamp(keyboardHeight, minCustomKeyboardSize, getRootView().getHeight() - minCustomKeyboardTopMarginPortrait);
252 }
253
254 private void setKeyboardPortraitHeight(int height) {
255 if (isBubble) {
256 return;
257 }
258
259 PreferenceManager.getDefaultSharedPreferences(getContext())
260 .edit().putInt("keyboard_height_portrait", height).apply();
261 }
262
263 private void setKeyboardLandscapeHeight(int height) {
264 if (isBubble) {
265 return;
266 }
267
268 PreferenceManager.getDefaultSharedPreferences(getContext())
269 .edit().putInt("keyboard_height_landscape", height).apply();
270 }
271
272 public void postOnKeyboardClose(final Runnable runnable) {
273 if (keyboardOpen) {
274 addOnKeyboardHiddenListener(new OnKeyboardHiddenListener() {
275 @Override public void onKeyboardHidden() {
276 removeOnKeyboardHiddenListener(this);
277 runnable.run();
278 }
279 });
280 } else {
281 runnable.run();
282 }
283 }
284
285 public void postOnKeyboardOpen(final Runnable runnable) {
286 if (!keyboardOpen) {
287 addOnKeyboardShownListener(new OnKeyboardShownListener() {
288 @Override public void onKeyboardShown() {
289 removeOnKeyboardShownListener(this);
290 runnable.run();
291 }
292 });
293 } else {
294 runnable.run();
295 }
296 }
297
298 public void addOnKeyboardHiddenListener(OnKeyboardHiddenListener listener) {
299 hiddenListeners.add(listener);
300 }
301
302 public void removeOnKeyboardHiddenListener(OnKeyboardHiddenListener listener) {
303 hiddenListeners.remove(listener);
304 }
305
306 public void addOnKeyboardShownListener(OnKeyboardShownListener listener) {
307 shownListeners.add(listener);
308 }
309
310 public void removeOnKeyboardShownListener(OnKeyboardShownListener listener) {
311 shownListeners.remove(listener);
312 }
313
314 private void notifyHiddenListeners() {
315 final Set<OnKeyboardHiddenListener> listeners = new HashSet<>(hiddenListeners);
316 for (OnKeyboardHiddenListener listener : listeners) {
317 listener.onKeyboardHidden();
318 }
319 }
320
321 private void notifyShownListeners() {
322 final Set<OnKeyboardShownListener> listeners = new HashSet<>(shownListeners);
323 for (OnKeyboardShownListener listener : listeners) {
324 listener.onKeyboardShown();
325 }
326 }
327
328 public interface OnKeyboardHiddenListener {
329 void onKeyboardHidden();
330 }
331
332 public interface OnKeyboardShownListener {
333 void onKeyboardShown();
334 }
335}