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Code Issues Releases Wiki Activity

Merge pull request #8682 from Isira-Seneviratne/Refactor_LicenseFragmentHelper

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Refactor LicenseFragmentHelper.
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Stypox 2022-08-04 11:18:40 +02:00 committed by GitHub
commit 5640365fbd
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2 changed files with 83 additions and 94 deletions
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1
app/src/main/java/org/schabi/newpipe/about/LicenseFragment.kt
View File

@ -8,7 +8,6 @@ import androidx.core.os.bundleOf
import androidx.fragment.app.Fragment
import io.reactivex.rxjava3.disposables.CompositeDisposable
import org.schabi.newpipe.R
import org.schabi.newpipe.about.LicenseFragmentHelper.showLicense
import org.schabi.newpipe.databinding.FragmentLicensesBinding
import org.schabi.newpipe.databinding.ItemSoftwareComponentBinding

176
app/src/main/java/org/schabi/newpipe/about/LicenseFragmentHelper.kt
View File

@ -14,100 +14,90 @@ import org.schabi.newpipe.util.ThemeHelper
import org.schabi.newpipe.util.external_communication.ShareUtils
import java.io.IOException
object LicenseFragmentHelper {
/**
* @param context the context to use
* @param license the license
* @return String which contains a HTML formatted license page
* styled according to the context's theme
*/
private fun getFormattedLicense(context: Context, license: License): String {
try {
return context.assets.open(license.filename).bufferedReader().use { it.readText() }
// split the HTML file and insert the stylesheet into the HEAD of the file
.replace("</head>", "<style>${getLicenseStylesheet(context)}</style></head>")
} catch (e: IOException) {
throw IllegalArgumentException("Could not get license file: ${license.filename}", e)
/**
* @param context the context to use
* @param license the license
* @return String which contains a HTML formatted license page
* styled according to the context's theme
*/
private fun getFormattedLicense(context: Context, license: License): String {
try {
return context.assets.open(license.filename).bufferedReader().use { it.readText() }
// split the HTML file and insert the stylesheet into the HEAD of the file
.replace("</head>", "<style>${getLicenseStylesheet(context)}</style></head>")
} catch (e: IOException) {
throw IllegalArgumentException("Could not get license file: ${license.filename}", e)
}
}
/**
* @param context the Android context
* @return String which is a CSS stylesheet according to the context's theme
*/
private fun getLicenseStylesheet(context: Context): String {
val isLightTheme = ThemeHelper.isLightThemeSelected(context)
val licenseBackgroundColor = getHexRGBColor(
context, if (isLightTheme) R.color.light_license_background_color else R.color.dark_license_background_color
)
val licenseTextColor = getHexRGBColor(
context, if (isLightTheme) R.color.light_license_text_color else R.color.dark_license_text_color
)
val youtubePrimaryColor = getHexRGBColor(
context, if (isLightTheme) R.color.light_youtube_primary_color else R.color.dark_youtube_primary_color
)
return "body{padding:12px 15px;margin:0;background:#$licenseBackgroundColor;color:#$licenseTextColor}" +
"a[href]{color:#$youtubePrimaryColor}pre{white-space:pre-wrap}"
}
/**
* Cast R.color to a hexadecimal color value.
*
* @param context the context to use
* @param color the color number from R.color
* @return a six characters long String with hexadecimal RGB values
*/
private fun getHexRGBColor(context: Context, color: Int): String {
return context.getString(color).substring(3)
}
fun showLicense(context: Context?, component: SoftwareComponent): Disposable {
return showLicense(context, component.license) {
setPositiveButton(R.string.dismiss) { dialog, _ ->
dialog.dismiss()
}
}
/**
* @param context the Android context
* @return String which is a CSS stylesheet according to the context's theme
*/
private fun getLicenseStylesheet(context: Context): String {
val isLightTheme = ThemeHelper.isLightThemeSelected(context)
return (
"body{padding:12px 15px;margin:0;" + "background:#" + getHexRGBColor(
context,
if (isLightTheme) R.color.light_license_background_color
else R.color.dark_license_background_color
) + ";" + "color:#" + getHexRGBColor(
context,
if (isLightTheme) R.color.light_license_text_color
else R.color.dark_license_text_color
) + "}" + "a[href]{color:#" + getHexRGBColor(
context,
if (isLightTheme) R.color.light_youtube_primary_color
else R.color.dark_youtube_primary_color
) + "}" + "pre{white-space:pre-wrap}"
)
}
/**
* Cast R.color to a hexadecimal color value.
*
* @param context the context to use
* @param color the color number from R.color
* @return a six characters long String with hexadecimal RGB values
*/
private fun getHexRGBColor(context: Context, color: Int): String {
return context.getString(color).substring(3)
}
fun showLicense(context: Context?, license: License): Disposable {
return showLicense(context, license) { alertDialog ->
alertDialog.setPositiveButton(R.string.ok) { dialog, _ ->
dialog.dismiss()
}
}
}
fun showLicense(context: Context?, component: SoftwareComponent): Disposable {
return showLicense(context, component.license) { alertDialog ->
alertDialog.setPositiveButton(R.string.dismiss) { dialog, _ ->
dialog.dismiss()
}
alertDialog.setNeutralButton(R.string.open_website_license) { _, _ ->
ShareUtils.openUrlInBrowser(context!!, component.link)
}
}
}
private fun showLicense(
context: Context?,
license: License,
block: (AlertDialog.Builder) -> Unit
): Disposable {
return if (context == null) {
Disposable.empty()
} else {
Observable.fromCallable { getFormattedLicense(context, license) }
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe { formattedLicense ->
val webViewData = Base64.encodeToString(formattedLicense.toByteArray(), Base64.NO_PADDING)
val webView = WebView(context)
webView.loadData(webViewData, "text/html; charset=UTF-8", "base64")
AlertDialog.Builder(context).apply {
setTitle(license.name)
setView(webView)
Localization.assureCorrectAppLanguage(context)
block(this)
show()
}
}
setNeutralButton(R.string.open_website_license) { _, _ ->
ShareUtils.openUrlInBrowser(context!!, component.link)
}
}
}
fun showLicense(context: Context?, license: License) = showLicense(context, license) {
setPositiveButton(R.string.ok) { dialog, _ -> dialog.dismiss() }
}
private fun showLicense(
context: Context?,
license: License,
block: AlertDialog.Builder.() -> AlertDialog.Builder
): Disposable {
return if (context == null) {
Disposable.empty()
} else {
Observable.fromCallable { getFormattedLicense(context, license) }
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe { formattedLicense ->
val webViewData =
Base64.encodeToString(formattedLicense.toByteArray(), Base64.NO_PADDING)
val webView = WebView(context)
webView.loadData(webViewData, "text/html; charset=UTF-8", "base64")
Localization.assureCorrectAppLanguage(context)
AlertDialog.Builder(context)
.setTitle(license.name)
.setView(webView)
.block()
.show()
}
}
}