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Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Apply HTML to Wikipedia text

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MM20 2022-02-15 19:29:12 +01:00
parent afaf7d7e73
commit fc90fdb17d
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4 changed files with 110 additions and 2 deletions
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2
ui/build.gradle.kts
View File

@ -66,6 +66,8 @@ dependencies {
implementation(libs.composecolorpicker)
implementation(libs.jsoup)
// Legacy dependencies
implementation(libs.androidx.transition)

3
ui/src/main/java/de/mm20/launcher2/ui/launcher/search/wikipedia/WikipediaItem.kt
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@ -33,6 +33,7 @@ import de.mm20.launcher2.ui.component.ToolbarAction
import de.mm20.launcher2.ui.ktx.toDp
import de.mm20.launcher2.ui.launcher.search.website.WebsiteItem
import de.mm20.launcher2.ui.locals.LocalFavoritesEnabled
import de.mm20.launcher2.ui.utils.htmlToAnnotatedString
@Composable
fun WikipediaItem(
@ -72,7 +73,7 @@ fun WikipediaItem(
)
Text(
modifier = Modifier.padding(vertical = 8.dp),
text = wikipedia.text,
text = htmlToAnnotatedString(wikipedia.text),
style = MaterialTheme.typography.bodySmall
)
}

105
ui/src/main/java/de/mm20/launcher2/ui/utils/htmlToAnnotatedString.kt Normal file
View File

@ -0,0 +1,105 @@
package de.mm20.launcher2.ui.utils
import androidx.compose.ui.text.*
import androidx.compose.ui.text.font.FontFamily
import androidx.compose.ui.text.font.FontStyle
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.BaselineShift
import androidx.compose.ui.text.style.TextDecoration
import androidx.compose.ui.text.style.TextIndent
import androidx.compose.ui.unit.em
import org.jsoup.Jsoup
import org.jsoup.nodes.Element
import org.jsoup.nodes.TextNode
fun htmlToAnnotatedString(html: String): AnnotatedString {
val document = Jsoup.parse(html.replace("\n", ""))
return buildAnnotatedString {
addNodes(this, document)
}
}
private val blockElements = arrayOf("p", "h1", "h2", "h3", "h4", "h5", "h6", "li", "pre")
private val inlineElements = arrayOf("i", "b", "strong", "em", "sup", "sub", "u", "s", "code", "br")
/**
* @param inParagraph: ParagraphStyles may not be nested, this parameter indicates if we are already inside a paragraph
*/
private fun addNodes(builder: AnnotatedString.Builder, element: Element, inParagraph: Boolean = false) {
val tagName = element.tag().normalName()
when {
blockElements.contains(tagName) -> {
val spanStyle = SpanStyle(
fontSize = when (tagName) {
"h1" -> 2.em
"h2" -> 1.75.em
"h3" -> 1.5.em
"h4" -> 1.25.em
"h5" -> 1.125.em
"h6" -> 1.em
else -> 1.em
},
fontWeight = if (tagName.matches(Regex("h[1-6]"))) FontWeight.Bold else FontWeight.Normal,
fontFamily = if (tagName == "pre") FontFamily.Monospace else null
)
if (!inParagraph) {
builder.withStyle(ParagraphStyle(
textIndent = if (tagName == "li") TextIndent(0.em, 1.em) else TextIndent.None
)) {
withStyle(
spanStyle
) {
if (tagName == "li") builder.append(" • ")
children(builder, element, true)
}
}
} else {
builder.append("\n")
builder.withStyle(
spanStyle
) {
if (tagName == "li") builder.append(" • ")
children(builder, element, true)
}
}
}
inlineElements.contains(tagName) -> {
builder.withStyle(
SpanStyle(
fontStyle = if (tagName == "i" || tagName == "em") FontStyle.Italic else FontStyle.Normal,
fontWeight = if (tagName == "b" || tagName == "strong") FontWeight.Bold else FontWeight.Normal,
textDecoration = when (tagName) {
"u" -> TextDecoration.Underline
"s" -> TextDecoration.LineThrough
else -> TextDecoration.None
},
baselineShift = when (tagName) {
"sup" -> BaselineShift.Superscript
"sub" -> BaselineShift.Subscript
else -> BaselineShift.None
},
fontFamily = if (tagName == "code") FontFamily.Monospace else null
)
) {
if(tagName == "br") builder.append("\n")
children(builder, element, inParagraph)
}
}
else -> {
children(builder, element, inParagraph)
}
}
}
private fun children(builder: AnnotatedString.Builder, element: Element, inParagraph: Boolean) {
for (node in element.childNodes()) {
if (node is TextNode) {
builder.append(node.text())
}
if (node is Element) {
addNodes(builder, node, inParagraph)
}
}
}

2
wikipedia/src/main/java/de/mm20/launcher2/wikipedia/WikipediaApi.kt
View File

@ -34,7 +34,7 @@ data class WikipediaGetPageImageResultQueryPageThumnail(
)
interface WikipediaApi {
@GET("w/api.php?action=query&generator=search&redirects=true&gsrlimit=1&explaintext=true&exchars=500&prop=extracts&exintro=true&format=json")
@GET("w/api.php?action=query&generator=search&redirects=true&gsrlimit=1&exchars=500&prop=extracts&exintro=true&format=json")
suspend fun search(@Query("gsrsearch") query: String): WikipediaSearchResult
@GET("w/api.php?action=query&prop=pageimages&format=json")