forked from facebook/react-native
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ReactRootView.java
887 lines (781 loc) · 32.4 KB
/
ReactRootView.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
package com.facebook.react;
import static com.facebook.infer.annotation.ThreadConfined.UI;
import static com.facebook.react.uimanager.common.UIManagerType.DEFAULT;
import static com.facebook.react.uimanager.common.UIManagerType.FABRIC;
import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Point;
import android.graphics.Rect;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.view.WindowManager;
import android.widget.FrameLayout;
import androidx.annotation.Nullable;
import com.facebook.common.logging.FLog;
import com.facebook.infer.annotation.Assertions;
import com.facebook.infer.annotation.ThreadConfined;
import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.CatalystInstance;
import com.facebook.react.bridge.ReactContext;
import com.facebook.react.bridge.ReactMarker;
import com.facebook.react.bridge.ReactMarkerConstants;
import com.facebook.react.bridge.ReactNoCrashSoftException;
import com.facebook.react.bridge.ReactSoftExceptionLogger;
import com.facebook.react.bridge.UIManager;
import com.facebook.react.bridge.UiThreadUtil;
import com.facebook.react.bridge.WritableMap;
import com.facebook.react.bridge.WritableNativeMap;
import com.facebook.react.common.annotations.VisibleForTesting;
import com.facebook.react.modules.appregistry.AppRegistry;
import com.facebook.react.modules.core.DeviceEventManagerModule;
import com.facebook.react.modules.deviceinfo.DeviceInfoModule;
import com.facebook.react.surface.ReactStage;
import com.facebook.react.uimanager.DisplayMetricsHolder;
import com.facebook.react.uimanager.IllegalViewOperationException;
import com.facebook.react.uimanager.JSTouchDispatcher;
import com.facebook.react.uimanager.PixelUtil;
import com.facebook.react.uimanager.ReactClippingProhibitedView;
import com.facebook.react.uimanager.ReactRoot;
import com.facebook.react.uimanager.RootView;
import com.facebook.react.uimanager.RootViewUtil;
import com.facebook.react.uimanager.UIManagerHelper;
import com.facebook.react.uimanager.common.UIManagerType;
import com.facebook.react.uimanager.events.EventDispatcher;
import com.facebook.systrace.Systrace;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Default root view for catalyst apps. Provides the ability to listen for size changes so that a UI
* manager can re-layout its elements. It delegates handling touch events for itself and child views
* and sending those events to JS by using JSTouchDispatcher. This view is overriding {@link
* ViewGroup#onInterceptTouchEvent} method in order to be notified about the events for all of its
* children and it's also overriding {@link ViewGroup#requestDisallowInterceptTouchEvent} to make
* sure that {@link ViewGroup#onInterceptTouchEvent} will get events even when some child view start
* intercepting it. In case when no child view is interested in handling some particular touch
* event, this view's {@link View#onTouchEvent} will still return true in order to be notified about
* all subsequent touch events related to that gesture (in case when JS code wants to handle that
* gesture).
*/
public class ReactRootView extends FrameLayout implements RootView, ReactRoot {
/** Listener interface for react root view events */
public interface ReactRootViewEventListener {
/** Called when the react context is attached to a ReactRootView. */
void onAttachedToReactInstance(ReactRootView rootView);
}
private static final String TAG = "ReactRootView";
private @Nullable ReactInstanceManager mReactInstanceManager;
private @Nullable String mJSModuleName;
private @Nullable Bundle mAppProperties;
private @Nullable String mInitialUITemplate;
private @Nullable CustomGlobalLayoutListener mCustomGlobalLayoutListener;
private @Nullable ReactRootViewEventListener mRootViewEventListener;
private int mRootViewTag =
0; /* This should be View.NO_ID, but for legacy reasons we haven't migrated yet */
private boolean mIsAttachedToInstance;
private boolean mShouldLogContentAppeared;
private @Nullable JSTouchDispatcher mJSTouchDispatcher;
private final ReactAndroidHWInputDeviceHelper mAndroidHWInputDeviceHelper =
new ReactAndroidHWInputDeviceHelper(this);
private boolean mWasMeasured = false;
private int mWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
private int mHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
private int mLastWidth = 0;
private int mLastHeight = 0;
private int mLastOffsetX = Integer.MIN_VALUE;
private int mLastOffsetY = Integer.MIN_VALUE;
private @UIManagerType int mUIManagerType = DEFAULT;
private final AtomicInteger mState = new AtomicInteger(STATE_STOPPED);
public ReactRootView(Context context) {
super(context);
init();
}
public ReactRootView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public ReactRootView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init() {
setClipChildren(false);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
Systrace.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "ReactRootView.onMeasure");
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_ON_MEASURE_START);
try {
boolean measureSpecsUpdated =
widthMeasureSpec != mWidthMeasureSpec || heightMeasureSpec != mHeightMeasureSpec;
mWidthMeasureSpec = widthMeasureSpec;
mHeightMeasureSpec = heightMeasureSpec;
int width = 0;
int height = 0;
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
if (widthMode == MeasureSpec.AT_MOST || widthMode == MeasureSpec.UNSPECIFIED) {
for (int i = 0; i < getChildCount(); i++) {
View child = getChildAt(i);
int childSize =
child.getLeft()
+ child.getMeasuredWidth()
+ child.getPaddingLeft()
+ child.getPaddingRight();
width = Math.max(width, childSize);
}
} else {
width = MeasureSpec.getSize(widthMeasureSpec);
}
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
if (heightMode == MeasureSpec.AT_MOST || heightMode == MeasureSpec.UNSPECIFIED) {
for (int i = 0; i < getChildCount(); i++) {
View child = getChildAt(i);
int childSize =
child.getTop()
+ child.getMeasuredHeight()
+ child.getPaddingTop()
+ child.getPaddingBottom();
height = Math.max(height, childSize);
}
} else {
height = MeasureSpec.getSize(heightMeasureSpec);
}
setMeasuredDimension(width, height);
mWasMeasured = true;
// Check if we were waiting for onMeasure to attach the root view.
if (mReactInstanceManager != null && !mIsAttachedToInstance) {
attachToReactInstanceManager();
} else if (measureSpecsUpdated || mLastWidth != width || mLastHeight != height) {
updateRootLayoutSpecs(true, mWidthMeasureSpec, mHeightMeasureSpec);
}
mLastWidth = width;
mLastHeight = height;
} finally {
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_ON_MEASURE_END);
Systrace.endSection(TRACE_TAG_REACT_JAVA_BRIDGE);
}
}
@Override
public void onChildStartedNativeGesture(MotionEvent androidEvent) {
if (mReactInstanceManager == null
|| !mIsAttachedToInstance
|| mReactInstanceManager.getCurrentReactContext() == null) {
FLog.w(TAG, "Unable to dispatch touch to JS as the catalyst instance has not been attached");
return;
}
if (mJSTouchDispatcher == null) {
FLog.w(TAG, "Unable to dispatch touch to JS before the dispatcher is available");
return;
}
ReactContext reactContext = mReactInstanceManager.getCurrentReactContext();
UIManager uiManager = UIManagerHelper.getUIManager(reactContext, getUIManagerType());
if (uiManager != null) {
EventDispatcher eventDispatcher = uiManager.getEventDispatcher();
mJSTouchDispatcher.onChildStartedNativeGesture(androidEvent, eventDispatcher);
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
dispatchJSTouchEvent(ev);
return super.onInterceptTouchEvent(ev);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
dispatchJSTouchEvent(ev);
super.onTouchEvent(ev);
// In case when there is no children interested in handling touch event, we return true from
// the root view in order to receive subsequent events related to that gesture
return true;
}
@Override
protected void dispatchDraw(Canvas canvas) {
try {
super.dispatchDraw(canvas);
} catch (StackOverflowError e) {
// Adding special exception management for StackOverflowError for logging purposes.
// This will be removed in the future.
handleException(e);
}
}
@Override
public boolean dispatchKeyEvent(KeyEvent ev) {
if (mReactInstanceManager == null
|| !mIsAttachedToInstance
|| mReactInstanceManager.getCurrentReactContext() == null) {
FLog.w(TAG, "Unable to handle key event as the catalyst instance has not been attached");
return super.dispatchKeyEvent(ev);
}
mAndroidHWInputDeviceHelper.handleKeyEvent(ev);
return super.dispatchKeyEvent(ev);
}
@Override
protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) {
if (mReactInstanceManager == null
|| !mIsAttachedToInstance
|| mReactInstanceManager.getCurrentReactContext() == null) {
FLog.w(
TAG,
"Unable to handle focus changed event as the catalyst instance has not been attached");
super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
return;
}
mAndroidHWInputDeviceHelper.clearFocus();
super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
}
@Override
public void requestChildFocus(View child, View focused) {
if (mReactInstanceManager == null
|| !mIsAttachedToInstance
|| mReactInstanceManager.getCurrentReactContext() == null) {
FLog.w(
TAG,
"Unable to handle child focus changed event as the catalyst instance has not been attached");
super.requestChildFocus(child, focused);
return;
}
mAndroidHWInputDeviceHelper.onFocusChanged(focused);
super.requestChildFocus(child, focused);
}
private void dispatchJSTouchEvent(MotionEvent event) {
if (mReactInstanceManager == null
|| !mIsAttachedToInstance
|| mReactInstanceManager.getCurrentReactContext() == null) {
FLog.w(TAG, "Unable to dispatch touch to JS as the catalyst instance has not been attached");
return;
}
if (mJSTouchDispatcher == null) {
FLog.w(TAG, "Unable to dispatch touch to JS before the dispatcher is available");
return;
}
ReactContext reactContext = mReactInstanceManager.getCurrentReactContext();
UIManager uiManager = UIManagerHelper.getUIManager(reactContext, getUIManagerType());
if (uiManager != null) {
EventDispatcher eventDispatcher = uiManager.getEventDispatcher();
mJSTouchDispatcher.handleTouchEvent(event, eventDispatcher);
}
}
@Override
public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) {
// Override in order to still receive events to onInterceptTouchEvent even when some other
// views disallow that, but propagate it up the tree if possible.
if (getParent() != null) {
getParent().requestDisallowInterceptTouchEvent(disallowIntercept);
}
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
// No-op in non-Fabric since UIManagerModule handles actually laying out children.
// In Fabric, update LayoutSpecs just so we update the offsetX and offsetY.
if (mWasMeasured && getUIManagerType() == FABRIC) {
updateRootLayoutSpecs(false, mWidthMeasureSpec, mHeightMeasureSpec);
}
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (mIsAttachedToInstance) {
removeOnGlobalLayoutListener();
getViewTreeObserver().addOnGlobalLayoutListener(getCustomGlobalLayoutListener());
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (mIsAttachedToInstance) {
removeOnGlobalLayoutListener();
}
}
private void removeOnGlobalLayoutListener() {
getViewTreeObserver().removeOnGlobalLayoutListener(getCustomGlobalLayoutListener());
}
@Override
public void onViewAdded(final View child) {
super.onViewAdded(child);
// See comments in {@code ReactRootViewProhibitedChildView} for why we want this mechanism.
if (child instanceof ReactClippingProhibitedView) {
UiThreadUtil.runOnUiThread(
new Runnable() {
@Override
public void run() {
if (!child.isShown()) {
ReactSoftExceptionLogger.logSoftException(
TAG,
new ReactNoCrashSoftException(
"A view was illegally added as a child of a ReactRootView. "
+ "This View should not be a direct child of a ReactRootView, because it is not visible and will never be reachable. Child: "
+ child.getClass().getCanonicalName().toString()
+ " child ID: "
+ child.getId()));
}
}
});
}
if (mShouldLogContentAppeared) {
mShouldLogContentAppeared = false;
if (mJSModuleName != null) {
ReactMarker.logMarker(ReactMarkerConstants.CONTENT_APPEARED, mJSModuleName, mRootViewTag);
}
}
}
@Override
public ViewGroup getRootViewGroup() {
return this;
}
/** {@see #startReactApplication(ReactInstanceManager, String, android.os.Bundle)} */
public void startReactApplication(ReactInstanceManager reactInstanceManager, String moduleName) {
startReactApplication(reactInstanceManager, moduleName, null);
}
/** {@see #startReactApplication(ReactInstanceManager, String, android.os.Bundle, String)} */
public void startReactApplication(
ReactInstanceManager reactInstanceManager,
String moduleName,
@Nullable Bundle initialProperties) {
startReactApplication(reactInstanceManager, moduleName, initialProperties, null);
}
/**
* Schedule rendering of the react component rendered by the JS application from the given JS
* module (@{param moduleName}) using provided {@param reactInstanceManager} to attach to the JS
* context of that manager. Extra parameter {@param launchOptions} can be used to pass initial
* properties for the react component.
*/
@ThreadConfined(UI)
public void startReactApplication(
ReactInstanceManager reactInstanceManager,
String moduleName,
@Nullable Bundle initialProperties,
@Nullable String initialUITemplate) {
Systrace.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "startReactApplication");
try {
UiThreadUtil.assertOnUiThread();
// TODO(6788889): Use POJO instead of bundle here, apparently we can't just use WritableMap
// here as it may be deallocated in native after passing via JNI bridge, but we want to reuse
// it in the case of re-creating the catalyst instance
Assertions.assertCondition(
mReactInstanceManager == null,
"This root view has already been attached to a catalyst instance manager");
mReactInstanceManager = reactInstanceManager;
mJSModuleName = moduleName;
mAppProperties = initialProperties;
mInitialUITemplate = initialUITemplate;
mReactInstanceManager.createReactContextInBackground();
} finally {
Systrace.endSection(TRACE_TAG_REACT_JAVA_BRIDGE);
}
}
@Override
public int getWidthMeasureSpec() {
return mWidthMeasureSpec;
}
@Override
public int getHeightMeasureSpec() {
return mHeightMeasureSpec;
}
@Override
public void setShouldLogContentAppeared(boolean shouldLogContentAppeared) {
mShouldLogContentAppeared = shouldLogContentAppeared;
}
@Nullable
@Override
public String getSurfaceID() {
Bundle appProperties = getAppProperties();
return appProperties != null ? appProperties.getString("surfaceID") : null;
}
public AtomicInteger getState() {
return mState;
}
/**
* Call whenever measure specs change, or if you want to force an update of offsetX/offsetY. If
* measureSpecsChanged is false and the offsetX/offsetY don't change, updateRootLayoutSpecs will
* not be called on the UIManager as a perf optimization.
*
* @param measureSpecsChanged
* @param widthMeasureSpec
* @param heightMeasureSpec
*/
private void updateRootLayoutSpecs(
boolean measureSpecsChanged, final int widthMeasureSpec, final int heightMeasureSpec) {
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_UPDATE_LAYOUT_SPECS_START);
if (mReactInstanceManager == null) {
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_UPDATE_LAYOUT_SPECS_END);
FLog.w(TAG, "Unable to update root layout specs for uninitialized ReactInstanceManager");
return;
}
// In Fabric we cannot call `updateRootLayoutSpecs` until a SurfaceId has been set.
// Sometimes,
if (getUIManagerType() == FABRIC && !isRootViewTagSet()) {
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_UPDATE_LAYOUT_SPECS_END);
FLog.e(TAG, "Unable to update root layout specs for ReactRootView: no rootViewTag set yet");
return;
}
final ReactContext reactApplicationContext = mReactInstanceManager.getCurrentReactContext();
if (reactApplicationContext != null) {
@Nullable
UIManager uiManager =
UIManagerHelper.getUIManager(reactApplicationContext, getUIManagerType());
// Ignore calling updateRootLayoutSpecs if UIManager is not properly initialized.
if (uiManager != null) {
// In Fabric only, get position of view within screen
int offsetX = 0;
int offsetY = 0;
if (getUIManagerType() == FABRIC) {
Point viewportOffset = RootViewUtil.getViewportOffset(this);
offsetX = viewportOffset.x;
offsetY = viewportOffset.y;
}
if (measureSpecsChanged || offsetX != mLastOffsetX || offsetY != mLastOffsetY) {
uiManager.updateRootLayoutSpecs(
getRootViewTag(), widthMeasureSpec, heightMeasureSpec, offsetX, offsetY);
}
mLastOffsetX = offsetX;
mLastOffsetY = offsetY;
}
}
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_UPDATE_LAYOUT_SPECS_END);
}
/**
* Unmount the react application at this root view, reclaiming any JS memory associated with that
* application. If {@link #startReactApplication} is called, this method must be called before the
* ReactRootView is garbage collected (typically in your Activity's onDestroy, or in your
* Fragment's onDestroyView).
*/
@ThreadConfined(UI)
public void unmountReactApplication() {
UiThreadUtil.assertOnUiThread();
// Stop surface in Fabric.
// Calling FabricUIManager.stopSurface causes the C++ Binding.stopSurface
// to be called synchronously over the JNI, which causes an empty tree
// to be committed via the Scheduler, which will cause mounting instructions
// to be queued up and synchronously executed to delete and remove
// all the views in the hierarchy.
if (mReactInstanceManager != null) {
final ReactContext reactApplicationContext = mReactInstanceManager.getCurrentReactContext();
if (reactApplicationContext != null && getUIManagerType() == FABRIC) {
@Nullable
UIManager uiManager =
UIManagerHelper.getUIManager(reactApplicationContext, getUIManagerType());
if (uiManager != null) {
final int surfaceId = this.getId();
// In case of "retry" or error dialogues being shown, this ReactRootView could be
// reused (with the same surfaceId, or a different one). Ensure the ReactRootView
// is marked as unused in case of that.
setId(NO_ID);
// Remove all children from ReactRootView
removeAllViews();
if (surfaceId == NO_ID) {
ReactSoftExceptionLogger.logSoftException(
TAG,
new RuntimeException(
"unmountReactApplication called on ReactRootView with invalid id"));
} else {
uiManager.stopSurface(surfaceId);
}
}
}
}
if (mReactInstanceManager != null && mIsAttachedToInstance) {
mReactInstanceManager.detachRootView(this);
mIsAttachedToInstance = false;
}
mReactInstanceManager = null;
mShouldLogContentAppeared = false;
}
@Override
public void onStage(int stage) {
switch (stage) {
case ReactStage.ON_ATTACH_TO_INSTANCE:
onAttachedToReactInstance();
break;
default:
break;
}
}
public void onAttachedToReactInstance() {
// Create the touch dispatcher here instead of having it always available, to make sure
// that all touch events are only passed to JS after React/JS side is ready to consume
// them. Otherwise, these events might break the states expected by JS.
// Note that this callback was invoked from within the UI thread.
mJSTouchDispatcher = new JSTouchDispatcher(this);
if (mRootViewEventListener != null) {
mRootViewEventListener.onAttachedToReactInstance(this);
}
}
public void setEventListener(@Nullable ReactRootViewEventListener eventListener) {
mRootViewEventListener = eventListener;
}
@Override
public String getJSModuleName() {
return Assertions.assertNotNull(mJSModuleName);
}
@Override
public @Nullable Bundle getAppProperties() {
return mAppProperties;
}
@Override
public @Nullable String getInitialUITemplate() {
return mInitialUITemplate;
}
@ThreadConfined(UI)
public void setAppProperties(@Nullable Bundle appProperties) {
UiThreadUtil.assertOnUiThread();
mAppProperties = appProperties;
if (isRootViewTagSet()) {
runApplication();
}
}
/**
* Calls into JS to start the React application. Can be called multiple times with the same
* rootTag, which will re-render the application from the root.
*/
@Override
public void runApplication() {
Systrace.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "ReactRootView.runApplication");
try {
if (mReactInstanceManager == null || !mIsAttachedToInstance) {
return;
}
ReactContext reactContext = mReactInstanceManager.getCurrentReactContext();
if (reactContext == null) {
return;
}
CatalystInstance catalystInstance = reactContext.getCatalystInstance();
String jsAppModuleName = getJSModuleName();
if (mWasMeasured) {
updateRootLayoutSpecs(true, mWidthMeasureSpec, mHeightMeasureSpec);
}
WritableNativeMap appParams = new WritableNativeMap();
appParams.putDouble("rootTag", getRootViewTag());
@Nullable Bundle appProperties = getAppProperties();
if (appProperties != null) {
appParams.putMap("initialProps", Arguments.fromBundle(appProperties));
}
mShouldLogContentAppeared = true;
catalystInstance.getJSModule(AppRegistry.class).runApplication(jsAppModuleName, appParams);
} finally {
Systrace.endSection(TRACE_TAG_REACT_JAVA_BRIDGE);
}
}
/**
* Is used by unit test to setup mIsAttachedToWindow flags, that will let this view to be properly
* attached to catalyst instance by startReactApplication call
*/
@VisibleForTesting
/* package */ void simulateAttachForTesting() {
mIsAttachedToInstance = true;
mJSTouchDispatcher = new JSTouchDispatcher(this);
}
private CustomGlobalLayoutListener getCustomGlobalLayoutListener() {
if (mCustomGlobalLayoutListener == null) {
mCustomGlobalLayoutListener = new CustomGlobalLayoutListener();
}
return mCustomGlobalLayoutListener;
}
private void attachToReactInstanceManager() {
Systrace.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "attachToReactInstanceManager");
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_ATTACH_TO_REACT_INSTANCE_MANAGER_START);
// React Native requires that the RootView id be managed entirely by React Native, and will
// crash in addRootView/startSurface if the native View id isn't set to NO_ID.
// This behavior can not be guaranteed in hybrid apps that have a native android layer over
// which reactRootViews are added and the native views need to have ids on them in order to
// work.
// Hence this can cause unnecessary crashes at runtime for hybrid apps.
// So converting this to a soft exception such that pure react-native devs can still see the
// warning while hybrid apps continue to run without crashes
if (getId() != View.NO_ID) {
ReactSoftExceptionLogger.logSoftException(
TAG,
new IllegalViewOperationException(
"Trying to attach a ReactRootView with an explicit id already set to ["
+ getId()
+ "]. React Native uses the id field to track react tags and will overwrite this"
+ " field. If that is fine, explicitly overwrite the id field to View.NO_ID."));
}
try {
if (mIsAttachedToInstance) {
return;
}
mIsAttachedToInstance = true;
Assertions.assertNotNull(mReactInstanceManager).attachRootView(this);
getViewTreeObserver().addOnGlobalLayoutListener(getCustomGlobalLayoutListener());
} finally {
ReactMarker.logMarker(ReactMarkerConstants.ROOT_VIEW_ATTACH_TO_REACT_INSTANCE_MANAGER_END);
Systrace.endSection(TRACE_TAG_REACT_JAVA_BRIDGE);
}
}
@Override
protected void finalize() throws Throwable {
super.finalize();
Assertions.assertCondition(
!mIsAttachedToInstance,
"The application this ReactRootView was rendering was not unmounted before the "
+ "ReactRootView was garbage collected. This usually means that your application is "
+ "leaking large amounts of memory. To solve this, make sure to call "
+ "ReactRootView#unmountReactApplication in the onDestroy() of your hosting Activity or in "
+ "the onDestroyView() of your hosting Fragment.");
}
public int getRootViewTag() {
return mRootViewTag;
}
private boolean isRootViewTagSet() {
return mRootViewTag != 0 && mRootViewTag != NO_ID;
}
public void setRootViewTag(int rootViewTag) {
mRootViewTag = rootViewTag;
}
@Override
public void handleException(final Throwable t) {
if (mReactInstanceManager == null || mReactInstanceManager.getCurrentReactContext() == null) {
throw new RuntimeException(t);
}
Exception e = new IllegalViewOperationException(t.getMessage(), this, t);
mReactInstanceManager.getCurrentReactContext().handleException(e);
}
public void setIsFabric(boolean isFabric) {
mUIManagerType = isFabric ? FABRIC : DEFAULT;
}
@Override
public @UIManagerType int getUIManagerType() {
return mUIManagerType;
}
@Nullable
public ReactInstanceManager getReactInstanceManager() {
return mReactInstanceManager;
}
/* package */ void sendEvent(String eventName, @Nullable WritableMap params) {
if (mReactInstanceManager != null) {
mReactInstanceManager
.getCurrentReactContext()
.getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
.emit(eventName, params);
}
}
private class CustomGlobalLayoutListener implements ViewTreeObserver.OnGlobalLayoutListener {
private final Rect mVisibleViewArea;
private final int mMinKeyboardHeightDetected;
private int mKeyboardHeight = 0;
private int mDeviceRotation = 0;
/* package */ CustomGlobalLayoutListener() {
DisplayMetricsHolder.initDisplayMetricsIfNotInitialized(getContext().getApplicationContext());
mVisibleViewArea = new Rect();
mMinKeyboardHeightDetected = (int) PixelUtil.toPixelFromDIP(60);
}
@Override
public void onGlobalLayout() {
if (mReactInstanceManager == null
|| !mIsAttachedToInstance
|| mReactInstanceManager.getCurrentReactContext() == null) {
return;
}
checkForKeyboardEvents();
checkForDeviceOrientationChanges();
checkForDeviceDimensionsChanges();
}
private void checkForKeyboardEvents() {
getRootView().getWindowVisibleDisplayFrame(mVisibleViewArea);
final int heightDiff =
DisplayMetricsHolder.getWindowDisplayMetrics().heightPixels - mVisibleViewArea.bottom;
boolean isKeyboardShowingOrKeyboardHeightChanged =
mKeyboardHeight != heightDiff && heightDiff > mMinKeyboardHeightDetected;
if (isKeyboardShowingOrKeyboardHeightChanged) {
mKeyboardHeight = heightDiff;
sendEvent(
"keyboardDidShow",
createKeyboardEventPayload(
PixelUtil.toDIPFromPixel(mVisibleViewArea.bottom),
PixelUtil.toDIPFromPixel(mVisibleViewArea.left),
PixelUtil.toDIPFromPixel(mVisibleViewArea.width()),
PixelUtil.toDIPFromPixel(mKeyboardHeight)));
return;
}
boolean isKeyboardHidden = mKeyboardHeight != 0 && heightDiff <= mMinKeyboardHeightDetected;
if (isKeyboardHidden) {
mKeyboardHeight = 0;
sendEvent(
"keyboardDidHide",
createKeyboardEventPayload(
PixelUtil.toDIPFromPixel(mLastHeight),
0,
PixelUtil.toDIPFromPixel(mVisibleViewArea.width()),
0));
}
}
private void checkForDeviceOrientationChanges() {
final int rotation =
((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE))
.getDefaultDisplay()
.getRotation();
if (mDeviceRotation == rotation) {
return;
}
mDeviceRotation = rotation;
DisplayMetricsHolder.initDisplayMetrics(getContext().getApplicationContext());
emitOrientationChanged(rotation);
}
private void checkForDeviceDimensionsChanges() {
// DeviceInfoModule caches the last dimensions emitted to JS, so we don't need to check here.
emitUpdateDimensionsEvent();
}
private void emitOrientationChanged(final int newRotation) {
String name;
double rotationDegrees;
boolean isLandscape = false;
switch (newRotation) {
case Surface.ROTATION_0:
name = "portrait-primary";
rotationDegrees = 0.0;
break;
case Surface.ROTATION_90:
name = "landscape-primary";
rotationDegrees = -90.0;
isLandscape = true;
break;
case Surface.ROTATION_180:
name = "portrait-secondary";
rotationDegrees = 180.0;
break;
case Surface.ROTATION_270:
name = "landscape-secondary";
rotationDegrees = 90.0;
isLandscape = true;
break;
default:
return;
}
WritableMap map = Arguments.createMap();
map.putString("name", name);
map.putDouble("rotationDegrees", rotationDegrees);
map.putBoolean("isLandscape", isLandscape);
sendEvent("namedOrientationDidChange", map);
}
private void emitUpdateDimensionsEvent() {
DeviceInfoModule deviceInfo =
mReactInstanceManager.getCurrentReactContext().getNativeModule(DeviceInfoModule.class);
if (deviceInfo != null) {
deviceInfo.emitUpdateDimensionsEvent();
}
}
private WritableMap createKeyboardEventPayload(
double screenY, double screenX, double width, double height) {
WritableMap keyboardEventParams = Arguments.createMap();
WritableMap endCoordinates = Arguments.createMap();
endCoordinates.putDouble("height", height);
endCoordinates.putDouble("screenX", screenX);
endCoordinates.putDouble("width", width);
endCoordinates.putDouble("screenY", screenY);
keyboardEventParams.putMap("endCoordinates", endCoordinates);
keyboardEventParams.putString("easing", "keyboard");
keyboardEventParams.putDouble("duration", 0);
return keyboardEventParams;
}
}
}