mirror of https://github.com/Corewala/Buran
253 lines
11 KiB
Kotlin
253 lines
11 KiB
Kotlin
package corewala.buran.ui.gemtext_adapters
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import android.annotation.SuppressLint
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import android.net.Uri
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.core.view.isVisible
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import kotlinx.android.synthetic.main.gemtext_large_code_block.view.*
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import kotlinx.android.synthetic.main.gemtext_large_image_link.view.*
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import kotlinx.android.synthetic.main.gemtext_large_link.view.gemtext_text_link
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import kotlinx.android.synthetic.main.gemtext_large_text.view.*
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import corewala.buran.R
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import corewala.endsWithImage
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import corewala.visible
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import java.net.URI
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class LargeGemtextAdapter(
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typeId: Int,
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onLink: (link: URI, longTap: Boolean, adapterPosition: Int) -> Unit)
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: AbstractGemtextAdapter(typeId, onLink) {
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private var lines = mutableListOf<String>()
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private var inlineImages = HashMap<Int, Uri>()
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private val typeText = 0
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private val typeH1 = 1
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private val typeH2 = 2
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private val typeH3 = 3
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private val typeListItem = 4
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private val typeImageLink = 5
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private val typeLink = 6
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private val typeCodeBlock = 7
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private val typeQuote = 8
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override fun render(lines: List<String>){
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this.inlineImages.clear()
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this.lines.clear()
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this.lines.addAll(lines)
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notifyDataSetChanged()
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}
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private fun inflate(parent: ViewGroup, layout: Int): View{
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return LayoutInflater.from(parent.context).inflate(layout, parent, false)
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}
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): GmiViewHolder {
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return when(viewType){
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typeText -> GmiViewHolder.Text(inflate(parent, R.layout.gemtext_large_text))
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typeH1 -> GmiViewHolder.H1(inflate(parent, R.layout.gemtext_large_h1))
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typeH2 -> GmiViewHolder.H2(inflate(parent, R.layout.gemtext_large_h2))
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typeH3 -> GmiViewHolder.H3(inflate(parent, R.layout.gemtext_large_h3))
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typeListItem -> GmiViewHolder.ListItem(inflate(parent, R.layout.gemtext_large_text))
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typeImageLink -> GmiViewHolder.ImageLink(inflate(parent, R.layout.gemtext_large_image_link))
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typeLink -> GmiViewHolder.Link(inflate(parent, R.layout.gemtext_large_link))
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typeCodeBlock-> GmiViewHolder.Code(inflate(parent, R.layout.gemtext_large_code_block))
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typeQuote -> GmiViewHolder.Quote(inflate(parent, R.layout.gemtext_large_quote))
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else -> GmiViewHolder.Text(inflate(parent, R.layout.gemtext_large_text))
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}
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}
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override fun getItemViewType(position: Int): Int {
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val line = lines[position]
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return when {
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line.startsWith("```") -> typeCodeBlock
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line.startsWith("###") -> typeH3
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line.startsWith("##") -> typeH2
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line.startsWith("#") -> typeH1
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line.startsWith("*") -> typeListItem
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line.startsWith("=>") && getLink(line).endsWithImage() -> typeImageLink
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line.startsWith("=>") -> typeLink
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line.startsWith(">") -> typeQuote
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else -> typeText
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}
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}
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override fun getItemCount(): Int = lines.size
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@SuppressLint("SetTextI18n")
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override fun onBindViewHolder(holder: GmiViewHolder, position: Int) {
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val line = lines[position]
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when(holder){
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is GmiViewHolder.Text -> holder.itemView.gemtext_text_textview.text = line
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is GmiViewHolder.Code -> {
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var altText: String? = null
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if(line.startsWith("```<|ALT|>")){
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//there's alt text: "```<|ALT|>$alt</|ALT>"
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altText = line.substring(10, line.indexOf("</|ALT>"))
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holder.itemView.gemtext_text_monospace_textview.text = line.substring(line.indexOf("</|ALT>") + 7)
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}else{
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holder.itemView.gemtext_text_monospace_textview.text = line.substring(3)
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}
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if(hideCodeBlocks){
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holder.itemView.show_code_block.setText(R.string.show_code)//reset for recycling
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altText?.let{
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holder.itemView.show_code_block.append(": $altText")
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}
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holder.itemView.show_code_block.visible(true)
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holder.itemView.show_code_block.setOnClickListener {
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setupCodeBlockToggle(holder, altText)
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}
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holder.itemView.gemtext_text_monospace_textview.visible(false)
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when {
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showInlineIcons -> holder.itemView.show_code_block.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, R.drawable.vector_code, 0)
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else -> holder.itemView.show_code_block.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, 0, 0)
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}
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}else{
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holder.itemView.show_code_block.visible(false)
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holder.itemView.gemtext_text_monospace_textview.visible(true)
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}
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}
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is GmiViewHolder.Quote -> holder.itemView.gemtext_text_monospace_textview.text = line.substring(1).trim()
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is GmiViewHolder.H1 -> {
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when {
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line.length > 2 -> holder.itemView.gemtext_text_textview.text = line.substring(2).trim()
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else -> holder.itemView.gemtext_text_textview.text = ""
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}
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}
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is GmiViewHolder.H2 -> {
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when {
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line.length > 3 -> holder.itemView.gemtext_text_textview.text = line.substring(3).trim()
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else -> holder.itemView.gemtext_text_textview.text = ""
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}
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}
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is GmiViewHolder.H3 -> {
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when {
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line.length > 4 -> holder.itemView.gemtext_text_textview.text = line.substring(4).trim()
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else -> holder.itemView.gemtext_text_textview.text = ""
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}
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}
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is GmiViewHolder.ListItem -> holder.itemView.gemtext_text_textview.text = "• ${line.substring(1)}".trim()
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is GmiViewHolder.Link -> {
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val linkParts = line.substring(2).trim().split("\\s+".toRegex(), 2)
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var linkName = linkParts[0]
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if(linkParts.size > 1) linkName = linkParts[1]
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val displayText = linkName
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holder.itemView.gemtext_text_link.text = displayText
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when {
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showInlineIcons && linkParts.first().startsWith("http") -> holder.itemView.gemtext_text_link.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, R.drawable.vector_open_browser, 0)
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else -> holder.itemView.gemtext_text_link.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, 0, 0)
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}
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holder.itemView.gemtext_text_link.setOnClickListener {
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val uri = getUri(lines[holder.adapterPosition])
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println("User clicked link: $uri")
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onLink(uri, false, holder.adapterPosition)
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}
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holder.itemView.gemtext_text_link.setOnLongClickListener {
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val uri = getUri(lines[holder.adapterPosition])
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println("User long-clicked link: $uri")
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onLink(uri, true, holder.adapterPosition)
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true
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}
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}
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is GmiViewHolder.ImageLink -> {
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val linkParts = line.substring(2).trim().split("\\s+".toRegex(), 2)
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var linkName = linkParts[0]
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if(linkParts.size > 1) linkName = linkParts[1]
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val displayText = linkName
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holder.itemView.gemtext_text_link.text = displayText
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holder.itemView.gemtext_text_link.setOnClickListener {
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val uri = getUri(lines[holder.adapterPosition])
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println("User clicked link: $uri")
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onLink(uri, false, holder.adapterPosition)
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}
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holder.itemView.gemtext_text_link.setOnLongClickListener {
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val uri = getUri(lines[holder.adapterPosition])
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println("User long-clicked link: $uri")
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onLink(uri, true, holder.adapterPosition)
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true
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}
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when {
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inlineImages.containsKey(position) -> {
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holder.itemView.gemtext_inline_image.visible(true)
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holder.itemView.gemtext_inline_image.setImageURI(inlineImages[position])
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}
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else -> holder.itemView.gemtext_inline_image.visible(false)
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}
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when {
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showInlineIcons -> holder.itemView.gemtext_text_link.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.vector_photo, 0)
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else -> holder.itemView.gemtext_text_link.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0)
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}
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}
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}
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}
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private fun setupCodeBlockToggle(holder: GmiViewHolder.Code, altText: String?) {
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//val adapterPosition = holder.adapterPosition
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when {
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holder.itemView.gemtext_text_monospace_textview.isVisible -> {
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holder.itemView.show_code_block.setText(R.string.show_code)
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holder.itemView.gemtext_text_monospace_textview.visible(false)
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altText?.let{
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holder.itemView.show_code_block.append(": $altText")
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}
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}
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else -> {
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holder.itemView.show_code_block.setText(R.string.hide_code)
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holder.itemView.gemtext_text_monospace_textview.visible(true)
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altText?.let{
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holder.itemView.show_code_block.append(": $altText")
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}
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}
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}
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}
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private fun getLink(line: String): String{
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val linkParts = line.substring(2).trim().split("\\s+".toRegex(), 2)
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return linkParts[0]
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}
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private fun getUri(linkLine: String): URI{
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val linkParts = linkLine.substring(2).trim().split("\\s+".toRegex(), 2)
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return URI.create(linkParts.first())
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}
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override fun inferTitle(): String? {
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lines.forEach { line ->
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if(line.startsWith("#")) return line.replace("#", "").trim()
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}
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return null
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}
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override fun loadImage(position: Int, cacheUri: Uri){
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inlineImages[position] = cacheUri
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notifyItemChanged(position)
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}
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override fun inlineIcons(visible: Boolean){
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this.showInlineIcons = visible
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notifyDataSetChanged()
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}
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override fun hideCodeBlocks(hideCodeBlocks: Boolean) {
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this.hideCodeBlocks = hideCodeBlocks
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notifyDataSetChanged()
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}
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} |