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android: limit width + height in chat item view (#1920)

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Stanislav Dmitrenko 2023-02-09 15:00:33 +03:00 committed by GitHub
parent 3530022152
commit 53b05974c9
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1 changed files with 22 additions and 10 deletions
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32
apps/android/app/src/main/java/chat/simplex/app/views/chat/item/FramedItemView.kt
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@ -242,7 +242,12 @@ fun CIMarkdownText(
}
const val CHAT_IMAGE_LAYOUT_ID = "chatImage"
const val MAX_SAFE_WIDTH_HEIGHT = 100_000
/**
* Equal to [androidx.compose.ui.unit.Constraints.MaxFocusMask], which is 0x3FFFF - 1
* Other values make a crash `java.lang.IllegalArgumentException: Can't represent a width of 123456 and height of 9909 in Constraints`
* See [androidx.compose.ui.unit.Constraints.createConstraints]
* */
const val MAX_SAFE_WIDTH = 0x3FFFF - 1
@Composable
fun PriorityLayout(
@ -250,6 +255,17 @@ fun PriorityLayout(
priorityLayoutId: String,
content: @Composable () -> Unit
) {
/**
* Limiting max value for height + width in order to not crash the app, see [androidx.compose.ui.unit.Constraints.createConstraints]
* */
fun maxSafeHeight(width: Int) = when { // width bits + height bits should be <= 31
width < 0x1FFF /*MaxNonFocusMask*/ -> 0x3FFFF - 1 /* MaxFocusMask */ // 13 bits width + 18 bits height
width < 0x7FFF /*MinNonFocusMask*/ -> 0xFFFF - 1 /* MinFocusMask */ // 15 bits width + 16 bits height
width < 0xFFFF /*MinFocusMask*/ -> 0x7FFF - 1 /* MinFocusMask */ // 16 bits width + 15 bits height
width < 0x3FFFF /*MaxFocusMask*/ -> 0x1FFF - 1 /* MaxNonFocusMask */ // 18 bits width + 13 bits height
else -> 0x1FFF // shouldn't happen since width is limited already
}
Layout(
content = content,
modifier = modifier
@ -261,15 +277,11 @@ fun PriorityLayout(
if (it.layoutId == priorityLayoutId)
imagePlaceable!!
else
it.measure(constraints.copy(maxWidth = imagePlaceable?.width ?: min(MAX_SAFE_WIDTH_HEIGHT, constraints.maxWidth))) }
/**
* Limit width for every other element to width of important element and height for a sum of all elements.
*
* min(MAX_SAFE_WIDTH_HEIGHT, ...) is here because of exception (related to width of long text):
* java.lang.IllegalArgumentException: Can't represent a size of 324314 in Constraints
* at androidx.compose.ui.unit.Constraints$Companion.bitsNeedForSize(Constraints.kt:403)
* */
layout(imagePlaceable?.measuredWidth ?: min(MAX_SAFE_WIDTH_HEIGHT, placeables.maxOf { it.width }), min(MAX_SAFE_WIDTH_HEIGHT, placeables.sumOf { it.height })) {
it.measure(constraints.copy(maxWidth = imagePlaceable?.width ?: min(MAX_SAFE_WIDTH, constraints.maxWidth))) }
// Limit width for every other element to width of important element and height for a sum of all elements.
val width = imagePlaceable?.measuredWidth ?: min(MAX_SAFE_WIDTH, placeables.maxOf { it.width })
val height = minOf(maxSafeHeight(width), placeables.sumOf { it.height })
layout(width, height) {
var y = 0
placeables.forEach {
it.place(0, y)