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103 changes: 103 additions & 0 deletions
103
.../com/facebook/flipper/plugins/jetpackcompose/descriptors/AbstractComposeViewDescriptor.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| /* | ||
| * Copyright (c) Meta Platforms, Inc. and 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.flipper.plugins.jetpackcompose.descriptors | ||
|
|
||
| import android.os.Build | ||
| import android.os.Debug | ||
| import android.util.Log | ||
| import android.view.View | ||
| import androidx.annotation.RequiresApi | ||
| import androidx.compose.ui.platform.AbstractComposeView | ||
| import androidx.inspection.DefaultArtTooling | ||
| import com.facebook.flipper.plugins.jetpackcompose.model.ComposeNode | ||
| import com.facebook.flipper.plugins.uidebugger.descriptors.ChainedDescriptor | ||
| import com.facebook.flipper.plugins.uidebugger.descriptors.WarningMessage | ||
| import facebook.internal.androidx.compose.ui.inspection.RecompositionHandler | ||
| import facebook.internal.androidx.compose.ui.inspection.inspector.InspectorNode | ||
| import facebook.internal.androidx.compose.ui.inspection.inspector.LayoutInspectorTree | ||
| import java.io.IOException | ||
|
|
||
| object AbstractComposeViewDescriptor : ChainedDescriptor<AbstractComposeView>() { | ||
| private val recompositionHandler by lazy { | ||
| RecompositionHandler(DefaultArtTooling("Flipper")).apply { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { | ||
| attachJvmtiAgent() | ||
| startTrackingRecompositions(this) | ||
| } | ||
| } | ||
| } | ||
|
|
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| override fun onGetName(node: AbstractComposeView): String = node.javaClass.simpleName | ||
|
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| private fun transform( | ||
| view: View, | ||
| nodes: List<InspectorNode>, | ||
| layoutInspectorTree: LayoutInspectorTree | ||
| ): List<ComposeNode> { | ||
| val positionOnScreen = IntArray(2) | ||
| view.getLocationInWindow(positionOnScreen) | ||
|
|
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| val xOffset = positionOnScreen[0] | ||
| val yOffset = positionOnScreen[1] | ||
|
|
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| return nodes.map { node -> | ||
| ComposeNode(view, layoutInspectorTree, recompositionHandler, node, xOffset, yOffset) | ||
| } | ||
| } | ||
|
|
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| override fun onGetChildren(node: AbstractComposeView): List<Any> { | ||
| val children = mutableListOf<Any>() | ||
| val count = node.childCount - 1 | ||
| for (i in 0..count) { | ||
| val child: View = node.getChildAt(i) | ||
| children.add(child) | ||
|
|
||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { | ||
| val layoutInspector = LayoutInspectorTree() | ||
| layoutInspector.hideSystemNodes = true | ||
| val composeNodes = | ||
| try { | ||
| transform(child, layoutInspector.convert(child), layoutInspector) | ||
| } catch (t: Throwable) { | ||
| listOf( | ||
| WarningMessage( | ||
| "Unknown error occurred while trying to inspect compose node: ${t.message}", | ||
| getBounds(node))) | ||
| } | ||
| return if (composeNodes.isNullOrEmpty()) { | ||
| listOf( | ||
| WarningMessage( | ||
| "Go to developer options and make sure that \"Enable view attribute inspection\" option is enabled.", | ||
| getBounds(node))) | ||
| } else { | ||
| composeNodes | ||
| } | ||
| } | ||
| } | ||
|
|
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| return children | ||
| } | ||
|
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| @RequiresApi(Build.VERSION_CODES.Q) | ||
| private fun attachJvmtiAgent() { | ||
| try { | ||
| Debug.attachJvmtiAgent("nonexistent.so", null, null) | ||
| } catch (e: IOException) { | ||
| // expected: "nonexistent.so" doesn't exist, however attachJvmtiAgent call is enough | ||
| // to make art to load JVMTI plugin. | ||
| } | ||
| } | ||
|
|
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| private fun startTrackingRecompositions(recompositionHandler: RecompositionHandler) { | ||
| try { | ||
| recompositionHandler.changeCollectionMode(startCollecting = true, keepCounts = true) | ||
| } catch (t: Throwable) { | ||
| Log.e("ComposeViewDescriptor", "Failed to start tracking recompositions", t) | ||
| } | ||
| } | ||
| } |
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