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refactor: add parameter for customizable text link styles

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This commit is contained in:
andrekir 2024-10-02 17:01:11 -03:00
parent c30ee2f55f
commit 0a1f129403
1 changed files with 27 additions and 29 deletions
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56
app/src/main/java/com/geeksville/mesh/ui/components/AutoLinkText.kt
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@ -6,6 +6,7 @@ import android.text.style.URLSpan
import android.text.util.Linkify
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.AnnotatedString
import androidx.compose.ui.text.LinkAnnotation
@ -19,52 +20,49 @@ import androidx.compose.ui.tooling.preview.Preview
import androidx.core.text.util.LinkifyCompat
import com.geeksville.mesh.ui.theme.HyperlinkBlue
private val DefaultTextLinkStyles = TextLinkStyles(
style = SpanStyle(
color = HyperlinkBlue,
textDecoration = TextDecoration.Underline,
)
)
@Composable
internal fun AutoLinkText(
fun AutoLinkText(
text: String,
modifier: Modifier = Modifier,
style: TextStyle = TextStyle.Default,
linkStyles: TextLinkStyles = DefaultTextLinkStyles,
) {
val spannable = remember(text) {
linkify(text)
}
Text(
text = autoLinkText(text),
text = spannable.toAnnotatedString(linkStyles),
modifier = modifier,
style = style,
)
}
private fun autoLinkText(
text: String,
): AnnotatedString = spannableToAnnotated(
Factory.getInstance()
.newSpannable(text)
.also {
LinkifyCompat.addLinks(
it, Linkify.WEB_URLS or Linkify.EMAIL_ADDRESSES or Linkify.PHONE_NUMBERS
)
}
)
private fun linkify(text: String) = Factory.getInstance().newSpannable(text).also {
LinkifyCompat.addLinks(it, Linkify.WEB_URLS or Linkify.EMAIL_ADDRESSES or Linkify.PHONE_NUMBERS)
}
private fun spannableToAnnotated(spannable: Spannable): AnnotatedString = buildAnnotatedString {
val linkSpanStyle = SpanStyle(
color = HyperlinkBlue,
textDecoration = TextDecoration.Underline,
)
private fun Spannable.toAnnotatedString(
linkStyles: TextLinkStyles,
): AnnotatedString = buildAnnotatedString {
val spannable = this@toAnnotatedString
var lastEnd = 0
for (span in spannable.getSpans(0, spannable.length, Any::class.java)) {
spannable.getSpans(0, spannable.length, Any::class.java).forEach { span ->
val start = spannable.getSpanStart(span)
val end = spannable.getSpanEnd(span)
append(spannable.subSequence(lastEnd, start))
if (span is URLSpan) {
withLink(
LinkAnnotation.Url(
url = span.url,
styles = TextLinkStyles(style = linkSpanStyle)
)
) {
when (span) {
is URLSpan -> withLink(LinkAnnotation.Url(url = span.url, styles = linkStyles)) {
append(spannable.subSequence(start, end))
}
} else {
append(spannable.subSequence(start, end))
else -> append(spannable.subSequence(start, end))
}
lastEnd = end
}
@ -73,6 +71,6 @@ private fun spannableToAnnotated(spannable: Spannable): AnnotatedString = buildA
@Preview(showBackground = true)
@Composable
private fun PreviewAutoLinkedText() {
private fun AutoLinkTextPreview() {
AutoLinkText("A text containing a link https://example.com")
}