Preparing to move Kind1 content parsers to commons.
This commit is contained in:
Vitor Pamplona
@@ -0,0 +1,352 @@
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/**
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* Copyright (c) 2024 Vitor Pamplona
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
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* Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package com.vitorpamplona.amethyst.commons
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import android.util.Log
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import android.util.Patterns
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import com.linkedin.urls.detection.UrlDetector
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import com.linkedin.urls.detection.UrlDetectorOptions
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import com.vitorpamplona.quartz.encoders.Nip54
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import com.vitorpamplona.quartz.encoders.Nip92
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import com.vitorpamplona.quartz.events.FileHeaderEvent
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import com.vitorpamplona.quartz.events.ImmutableListOfLists
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import kotlinx.collections.immutable.ImmutableList
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import kotlinx.collections.immutable.persistentListOf
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import kotlinx.collections.immutable.toImmutableList
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import kotlinx.collections.immutable.toImmutableMap
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import kotlinx.collections.immutable.toImmutableSet
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import kotlinx.collections.immutable.toPersistentList
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import java.net.MalformedURLException
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import java.net.URISyntaxException
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import java.net.URL
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import java.util.regex.Pattern
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import kotlin.coroutines.cancellation.CancellationException
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class RichTextParser() {
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fun parseMediaUrl(
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fullUrl: String,
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eventTags: ImmutableListOfLists<String>,
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): ZoomableUrlContent? {
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val removedParamsFromUrl = removeQueryParamsForExtensionComparison(fullUrl)
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return if (imageExtensions.any { removedParamsFromUrl.endsWith(it) }) {
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val frags = Nip54().parse(fullUrl)
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val tags = Nip92().parse(fullUrl, eventTags.lists)
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ZoomableUrlImage(
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url = fullUrl,
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description = frags[FileHeaderEvent.ALT] ?: tags[FileHeaderEvent.ALT],
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hash = frags[FileHeaderEvent.HASH] ?: tags[FileHeaderEvent.HASH],
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blurhash = frags[FileHeaderEvent.BLUR_HASH] ?: tags[FileHeaderEvent.BLUR_HASH],
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dim = frags[FileHeaderEvent.DIMENSION] ?: tags[FileHeaderEvent.DIMENSION],
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contentWarning = frags["content-warning"] ?: tags["content-warning"],
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)
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} else if (videoExtensions.any { removedParamsFromUrl.endsWith(it) }) {
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val frags = Nip54().parse(fullUrl)
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val tags = Nip92().parse(fullUrl, eventTags.lists)
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ZoomableUrlVideo(
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url = fullUrl,
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description = frags[FileHeaderEvent.ALT] ?: tags[FileHeaderEvent.ALT],
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hash = frags[FileHeaderEvent.HASH] ?: tags[FileHeaderEvent.HASH],
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blurhash = frags[FileHeaderEvent.BLUR_HASH] ?: tags[FileHeaderEvent.BLUR_HASH],
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dim = frags[FileHeaderEvent.DIMENSION] ?: tags[FileHeaderEvent.DIMENSION],
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contentWarning = frags["content-warning"] ?: tags["content-warning"],
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)
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} else {
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null
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}
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}
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fun parseText(
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content: String,
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tags: ImmutableListOfLists<String>,
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): RichTextViewerState {
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val urls = UrlDetector(content, UrlDetectorOptions.Default).detect()
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val urlSet =
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urls.mapNotNullTo(LinkedHashSet(urls.size)) {
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// removes e-mails
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if (Patterns.EMAIL_ADDRESS.matcher(it.originalUrl).matches()) {
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null
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} else if (isNumber(it.originalUrl)) {
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null
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} else if (it.originalUrl.contains("。")) {
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null
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} else {
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if (HTTPRegex.matches(it.originalUrl)) {
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it.originalUrl
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} else {
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null
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}
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}
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}
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val imagesForPager =
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urlSet.mapNotNull { fullUrl -> parseMediaUrl(fullUrl, tags) }.associateBy { it.url }
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val imageList = imagesForPager.values.toList()
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val emojiMap =
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tags.lists.filter { it.size > 2 && it[0] == "emoji" }.associate { ":${it[1]}:" to it[2] }
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val segments = findTextSegments(content, imagesForPager.keys, urlSet, emojiMap, tags)
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return RichTextViewerState(
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urlSet.toImmutableSet(),
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imagesForPager.toImmutableMap(),
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imageList.toImmutableList(),
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emojiMap.toImmutableMap(),
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segments,
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)
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}
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private fun findTextSegments(
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content: String,
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images: Set<String>,
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urls: Set<String>,
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emojis: Map<String, String>,
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tags: ImmutableListOfLists<String>,
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): ImmutableList<ParagraphState> {
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val lines = content.split('\n')
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val paragraphSegments = ArrayList<ParagraphState>(lines.size)
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lines.forEach { paragraph ->
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var isDirty = false
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val isRTL = isArabic(paragraph)
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val wordList = paragraph.trimEnd().split(' ')
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val segments = ArrayList<Segment>(wordList.size)
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wordList.forEach { word ->
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val wordSegment = wordIdentifier(word, images, urls, emojis, tags)
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if (wordSegment !is RegularTextSegment) {
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isDirty = true
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}
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segments.add(wordSegment)
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}
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val newSegments =
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if (isDirty) {
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ParagraphState(segments.toPersistentList(), isRTL)
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} else {
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ParagraphState(persistentListOf<Segment>(RegularTextSegment(paragraph)), isRTL)
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}
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paragraphSegments.add(newSegments)
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}
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return paragraphSegments.toImmutableList()
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}
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fun isNumber(word: String): Boolean {
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return numberPattern.matcher(word).matches()
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}
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fun isDate(word: String): Boolean {
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return shortDatePattern.matcher(word).matches() || longDatePattern.matcher(word).matches()
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}
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private fun isArabic(text: String): Boolean {
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return text.any { it in '\u0600'..'\u06FF' || it in '\u0750'..'\u077F' }
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}
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private fun wordIdentifier(
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word: String,
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images: Set<String>,
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urls: Set<String>,
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emojis: Map<String, String>,
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tags: ImmutableListOfLists<String>,
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): Segment {
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val emailMatcher = Patterns.EMAIL_ADDRESS.matcher(word)
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val phoneMatcher = Patterns.PHONE.matcher(word)
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val schemelessMatcher = noProtocolUrlValidator.matcher(word)
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return if (word.isEmpty()) {
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RegularTextSegment(word)
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} else if (images.contains(word)) {
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ImageSegment(word)
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} else if (urls.contains(word)) {
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LinkSegment(word)
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} else if (emojis.any { word.contains(it.key) }) {
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EmojiSegment(word)
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} else if (word.startsWith("lnbc", true)) {
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InvoiceSegment(word)
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} else if (word.startsWith("lnurl", true)) {
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WithdrawSegment(word)
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} else if (word.startsWith("cashuA", true)) {
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CashuSegment(word)
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} else if (emailMatcher.matches()) {
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EmailSegment(word)
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} else if (word.length in 7..14 && !isDate(word) && phoneMatcher.matches()) {
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PhoneSegment(word)
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} else if (startsWithNIP19Scheme(word)) {
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BechSegment(word)
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} else if (word.startsWith("#")) {
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parseHash(word, tags)
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} else if (word.contains(".") && schemelessMatcher.find()) {
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val url = schemelessMatcher.group(1) // url
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val additionalChars = schemelessMatcher.group(4).ifEmpty { null } // additional chars
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val pattern =
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"""^([A-Za-z0-9-_]+(\.[A-Za-z0-9-_]+)+)(:[0-9]+)?(/[^?#]*)?(\?[^#]*)?(#.*)?"""
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.toRegex(RegexOption.IGNORE_CASE)
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if (pattern.find(word) != null) {
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SchemelessUrlSegment(word, url, additionalChars)
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} else {
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RegularTextSegment(word)
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}
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} else {
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RegularTextSegment(word)
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}
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}
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private fun parseHash(
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word: String,
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tags: ImmutableListOfLists<String>,
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): Segment {
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// First #[n]
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val matcher = tagIndex.matcher(word)
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try {
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if (matcher.find()) {
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val index = matcher.group(1)?.toInt()
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val suffix = matcher.group(2)
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if (index != null && index >= 0 && index < tags.lists.size) {
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val tag = tags.lists[index]
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if (tag.size > 1) {
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if (tag[0] == "p") {
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return HashIndexUserSegment(word, tag[1], suffix)
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} else if (tag[0] == "e" || tag[0] == "a") {
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return HashIndexEventSegment(word, tag[1], suffix)
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}
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}
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}
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}
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} catch (e: Exception) {
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if (e is CancellationException) throw e
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Log.w("Tag Parser", "Couldn't link tag $word", e)
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}
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// Second #Amethyst
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val hashtagMatcher = hashTagsPattern.matcher(word)
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try {
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if (hashtagMatcher.find()) {
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val hashtag = hashtagMatcher.group(1)
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if (hashtag != null) {
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return HashTagSegment(word, hashtag, hashtagMatcher.group(2).ifEmpty { null })
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}
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}
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} catch (e: Exception) {
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if (e is CancellationException) throw e
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Log.e("Hashtag Parser", "Couldn't link hashtag $word", e)
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}
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return RegularTextSegment(word)
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}
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companion object {
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val longDatePattern: Pattern = Pattern.compile("^\\d{4}-\\d{2}-\\d{2}$")
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val shortDatePattern: Pattern = Pattern.compile("^\\d{2}-\\d{2}-\\d{2}$")
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val numberPattern: Pattern = Pattern.compile("^(-?[\\d.]+)([a-zA-Z%]*)$")
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// Android9 seems to have an issue starting this regex.
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val noProtocolUrlValidator =
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try {
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Pattern.compile(
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"(([\\w\\d-]+\\.)*[a-zA-Z][\\w-]+[\\.\\:]\\w+([\\/\\?\\=\\&\\#\\.]?[\\w-]+[^\\p{IsHan}\\p{IsHiragana}\\p{IsKatakana}])*\\/?)(.*)",
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)
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} catch (e: Exception) {
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Pattern.compile(
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"(([\\w\\d-]+\\.)*[a-zA-Z][\\w-]+[\\.\\:]\\w+([\\/\\?\\=\\&\\#\\.]?[\\w-]+)*\\/?)(.*)",
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)
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}
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val HTTPRegex =
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"^((http|https)://)?([A-Za-z0-9-_]+(\\.[A-Za-z0-9-_]+)+)(:[0-9]+)?(/[^?#]*)?(\\?[^#]*)?(#.*)?"
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.toRegex(RegexOption.IGNORE_CASE)
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val imageExtensions = listOf("png", "jpg", "gif", "bmp", "jpeg", "webp", "svg")
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val videoExtensions = listOf("mp4", "avi", "wmv", "mpg", "amv", "webm", "mov", "mp3", "m3u8")
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val tagIndex = Pattern.compile("\\#\\[([0-9]+)\\](.*)")
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val hashTagsPattern: Pattern =
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Pattern.compile("#([^\\s!@#\$%^&*()=+./,\\[{\\]};:'\"?><]+)(.*)", Pattern.CASE_INSENSITIVE)
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fun removeQueryParamsForExtensionComparison(fullUrl: String): String {
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return if (fullUrl.contains("?")) {
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fullUrl.split("?")[0].lowercase()
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} else if (fullUrl.contains("#")) {
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fullUrl.split("#")[0].lowercase()
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} else {
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fullUrl.lowercase()
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}
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}
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fun isImageOrVideoUrl(url: String): Boolean {
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val removedParamsFromUrl = removeQueryParamsForExtensionComparison(url)
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return imageExtensions.any { removedParamsFromUrl.endsWith(it) } ||
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videoExtensions.any { removedParamsFromUrl.endsWith(it) }
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}
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fun isImageUrl(url: String): Boolean {
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val removedParamsFromUrl = removeQueryParamsForExtensionComparison(url)
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return imageExtensions.any { removedParamsFromUrl.endsWith(it) }
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}
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fun isVideoUrl(url: String): Boolean {
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val removedParamsFromUrl = removeQueryParamsForExtensionComparison(url)
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return videoExtensions.any { removedParamsFromUrl.endsWith(it) }
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}
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fun isValidURL(url: String?): Boolean {
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return try {
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URL(url).toURI()
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true
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} catch (e: MalformedURLException) {
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false
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} catch (e: URISyntaxException) {
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false
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}
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}
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fun parseImageOrVideo(fullUrl: String): ZoomableContent {
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val removedParamsFromUrl = removeQueryParamsForExtensionComparison(fullUrl)
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val isImage = imageExtensions.any { removedParamsFromUrl.endsWith(it) }
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val isVideo = videoExtensions.any { removedParamsFromUrl.endsWith(it) }
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return if (isImage) {
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ZoomableUrlImage(fullUrl)
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} else if (isVideo) {
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ZoomableUrlVideo(fullUrl)
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} else {
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ZoomableUrlImage(fullUrl)
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}
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}
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fun startsWithNIP19Scheme(word: String): Boolean {
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val cleaned = word.lowercase().removePrefix("@").removePrefix("nostr:").removePrefix("@")
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return listOf("npub1", "naddr1", "note1", "nprofile1", "nevent1").any { cleaned.startsWith(it) }
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}
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fun isUrlWithoutScheme(url: String) = noProtocolUrlValidator.matcher(url).matches()
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}
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}
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@@ -0,0 +1,90 @@
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/**
|
||||
* Copyright (c) 2024 Vitor Pamplona
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
* this software and associated documentation files (the "Software"), to deal in
|
||||
* the Software without restriction, including without limitation the rights to use,
|
||||
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
|
||||
* Software, and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in all
|
||||
* copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||||
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
package com.vitorpamplona.amethyst.commons
|
||||
|
||||
import androidx.compose.runtime.Immutable
|
||||
import kotlinx.collections.immutable.ImmutableList
|
||||
import kotlinx.collections.immutable.ImmutableMap
|
||||
import kotlinx.collections.immutable.ImmutableSet
|
||||
|
||||
@Immutable
|
||||
data class RichTextViewerState(
|
||||
val urlSet: ImmutableSet<String>,
|
||||
val imagesForPager: ImmutableMap<String, ZoomableUrlContent>,
|
||||
val imageList: ImmutableList<ZoomableUrlContent>,
|
||||
val customEmoji: ImmutableMap<String, String>,
|
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val paragraphs: ImmutableList<ParagraphState>,
|
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)
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||||
|
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@Immutable
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data class ParagraphState(val words: ImmutableList<Segment>, val isRTL: Boolean)
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|
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@Immutable
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open class Segment(val segmentText: String)
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|
||||
@Immutable
|
||||
class ImageSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class LinkSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class EmojiSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
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class InvoiceSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class WithdrawSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class CashuSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class EmailSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class PhoneSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class BechSegment(segment: String) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
open class HashIndexSegment(segment: String, val hex: String, val extras: String?) :
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Segment(segment)
|
||||
|
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@Immutable
|
||||
class HashIndexUserSegment(segment: String, hex: String, extras: String?) :
|
||||
HashIndexSegment(segment, hex, extras)
|
||||
|
||||
@Immutable
|
||||
class HashIndexEventSegment(segment: String, hex: String, extras: String?) :
|
||||
HashIndexSegment(segment, hex, extras)
|
||||
|
||||
@Immutable
|
||||
class HashTagSegment(segment: String, val hashtag: String, val extras: String?) : Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class SchemelessUrlSegment(segment: String, val url: String, val extras: String?) :
|
||||
Segment(segment)
|
||||
|
||||
@Immutable
|
||||
class RegularTextSegment(segment: String) : Segment(segment)
|
||||
@@ -0,0 +1,98 @@
|
||||
/**
|
||||
* Copyright (c) 2024 Vitor Pamplona
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
* this software and associated documentation files (the "Software"), to deal in
|
||||
* the Software without restriction, including without limitation the rights to use,
|
||||
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
|
||||
* Software, and to permit persons to whom the Software is furnished to do so,
|
||||
* subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in all
|
||||
* copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||||
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
package com.vitorpamplona.amethyst.commons
|
||||
|
||||
import androidx.compose.runtime.Immutable
|
||||
import java.io.File
|
||||
|
||||
@Immutable
|
||||
abstract class ZoomableContent(
|
||||
val description: String? = null,
|
||||
val dim: String? = null,
|
||||
)
|
||||
|
||||
@Immutable
|
||||
abstract class ZoomableUrlContent(
|
||||
val url: String,
|
||||
description: String? = null,
|
||||
val hash: String? = null,
|
||||
dim: String? = null,
|
||||
val uri: String? = null,
|
||||
) : ZoomableContent(description, dim)
|
||||
|
||||
@Immutable
|
||||
class ZoomableUrlImage(
|
||||
url: String,
|
||||
description: String? = null,
|
||||
hash: String? = null,
|
||||
val blurhash: String? = null,
|
||||
dim: String? = null,
|
||||
uri: String? = null,
|
||||
val contentWarning: String? = null,
|
||||
) : ZoomableUrlContent(url, description, hash, dim, uri)
|
||||
|
||||
@Immutable
|
||||
class ZoomableUrlVideo(
|
||||
url: String,
|
||||
description: String? = null,
|
||||
hash: String? = null,
|
||||
dim: String? = null,
|
||||
uri: String? = null,
|
||||
val artworkUri: String? = null,
|
||||
val authorName: String? = null,
|
||||
val blurhash: String? = null,
|
||||
val contentWarning: String? = null,
|
||||
) : ZoomableUrlContent(url, description, hash, dim, uri)
|
||||
|
||||
@Immutable
|
||||
abstract class ZoomablePreloadedContent(
|
||||
val localFile: File?,
|
||||
description: String? = null,
|
||||
val mimeType: String? = null,
|
||||
val isVerified: Boolean? = null,
|
||||
dim: String? = null,
|
||||
val uri: String,
|
||||
) : ZoomableContent(description, dim) {
|
||||
fun localFileExists() = localFile != null && localFile.exists()
|
||||
}
|
||||
|
||||
@Immutable
|
||||
class ZoomableLocalImage(
|
||||
localFile: File?,
|
||||
mimeType: String? = null,
|
||||
description: String? = null,
|
||||
val blurhash: String? = null,
|
||||
dim: String? = null,
|
||||
isVerified: Boolean? = null,
|
||||
uri: String,
|
||||
) : ZoomablePreloadedContent(localFile, description, mimeType, isVerified, dim, uri)
|
||||
|
||||
@Immutable
|
||||
class ZoomableLocalVideo(
|
||||
localFile: File?,
|
||||
mimeType: String? = null,
|
||||
description: String? = null,
|
||||
dim: String? = null,
|
||||
isVerified: Boolean? = null,
|
||||
uri: String,
|
||||
val artworkUri: String? = null,
|
||||
val authorName: String? = null,
|
||||
) : ZoomablePreloadedContent(localFile, description, mimeType, isVerified, dim, uri)
|
||||
Reference in New Issue
Block a user