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Introduced line limit in addition to existing character limit for "show more" folding of text

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This commit is contained in:
David Kaspar 2023-09-21 08:11:25 +02:00
parent f672a51470
commit 9b6eec5fdd
1 changed files with 16 additions and 2 deletions
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18
app/src/main/java/com/vitorpamplona/amethyst/ui/components/ExpandableRichTextViewer.kt
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@ -31,6 +31,7 @@ import com.vitorpamplona.amethyst.ui.theme.secondaryButtonBackground
import com.vitorpamplona.quartz.events.ImmutableListOfLists
const val SHORT_TEXT_LENGTH = 350
const val SHORTEN_AFTER_LINES = 10
@Composable
fun ExpandableRichTextViewer(
@ -45,11 +46,24 @@ fun ExpandableRichTextViewer(
var showFullText by remember { mutableStateOf(false) }
val whereToCut = remember(content) {
// Cuts the text in the first space after 350
// Cuts the text in the first space or new line after SHORT_TEXT_LENGTH characters
val firstSpaceAfterCut = content.indexOf(' ', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
val firstNewLineAfterCut = content.indexOf('\n', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
minOf(firstSpaceAfterCut, firstNewLineAfterCut)
// or after SHORTEN_AFTER_LINES lines
val numberOfLines = content.count { it == '\n' }
if (numberOfLines > SHORTEN_AFTER_LINES) {
val shortContent = content.lines().take(SHORTEN_AFTER_LINES)
var charactersInLines = 0
for (line in shortContent) {
// +1 because new line character is omitted from .lines
charactersInLines += (line.length + 1)
}
charactersInLines
} else {
minOf(firstSpaceAfterCut, firstNewLineAfterCut)
}
}
val text by remember(content) {