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app/src/main/java/de/westnordost/streetcomplete/util/ktx/WebView.kt
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| Original file line number | Diff line number | Diff line change |
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| package de.westnordost.streetcomplete.util.ktx | ||
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| import android.content.res.Resources | ||
| import android.graphics.Color | ||
| import android.webkit.WebView | ||
| import androidx.annotation.ColorRes | ||
| import androidx.annotation.DimenRes | ||
| import de.westnordost.streetcomplete.R | ||
| import kotlin.math.roundToInt | ||
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| fun WebView.setHtmlBody(body: String) { | ||
| val textColor = resources.getHexColor(R.color.text) | ||
| val linkColor = resources.getHexColor(R.color.accent) | ||
| val dividerColor = resources.getHexColor(R.color.divider) | ||
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| val textSize = resources.getDimensionInSp(androidx.appcompat.R.dimen.abc_text_size_body_1_material) | ||
| val h2Size = resources.getDimensionInSp(androidx.appcompat.R.dimen.abc_text_size_headline_material) | ||
| val h3Size = resources.getDimensionInSp(androidx.appcompat.R.dimen.abc_text_size_medium_material) | ||
| val h4Size = resources.getDimensionInSp(androidx.appcompat.R.dimen.abc_text_size_subhead_material) | ||
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| val verticalMargin = resources.getDimensionInDp(R.dimen.activity_vertical_margin) | ||
| val horizontalMargin = resources.getDimensionInDp(R.dimen.activity_horizontal_margin) | ||
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| val html = """ | ||
| <html> | ||
| <head> | ||
| <meta name="color-scheme" content="dark light"> | ||
| <style> | ||
| body { | ||
| margin: ${verticalMargin}px ${horizontalMargin}px; | ||
| color: $textColor; | ||
| font-size: ${textSize}px; | ||
| } | ||
| :link { color: $linkColor; } | ||
| h2, h3, h4 { font-family: sans-serif-condensed; } | ||
| h2 { font-size: ${h2Size}px; } | ||
| h3 { font-size: ${h3Size}px; } | ||
| h4 { font-size: ${h4Size}px; } | ||
| h2:not(:first-child) { | ||
| border-top: 1px solid $dividerColor; | ||
| padding-top: 1rem; | ||
| } | ||
| @media (prefers-color-scheme: dark) {} | ||
| </style> | ||
| </head> | ||
| <body>$body</body> | ||
| </html> | ||
| """.trimIndent() | ||
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| loadDataWithBaseURL(null, html, "text/html", "utf-8", null) | ||
| setBackgroundColor(Color.TRANSPARENT) | ||
| } | ||
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| private fun Resources.getHexColor(@ColorRes resId: Int) = | ||
| String.format("#%06X", 0xffffff and getColor(resId)) | ||
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| private fun Resources.getDimensionInSp(@DimenRes resId: Int) = pxToSp(getDimension(resId)).roundToInt() | ||
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| private fun Resources.getDimensionInDp(@DimenRes resId: Int) = pxToDp(getDimension(resId)).roundToInt() |