2018-01-04 19:52:25 +01:00
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package jp.juggler.subwaytooter.util
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import android.content.Context
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import android.support.annotation.DrawableRes
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import android.text.Spannable
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import android.text.SpannableStringBuilder
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import android.text.Spanned
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2018-01-18 19:09:36 +01:00
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import android.util.SparseBooleanArray
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2018-01-04 19:52:25 +01:00
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import jp.juggler.emoji.EmojiMap201709
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import java.util.ArrayList
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import jp.juggler.subwaytooter.App1
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2018-01-18 19:09:36 +01:00
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import jp.juggler.subwaytooter.Pref
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2018-01-20 17:59:38 +01:00
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import jp.juggler.subwaytooter.R
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2018-03-10 17:22:13 +01:00
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import jp.juggler.subwaytooter.api.entity.CustomEmoji
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2018-01-04 19:52:25 +01:00
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import jp.juggler.subwaytooter.span.EmojiImageSpan
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import jp.juggler.subwaytooter.span.HighlightSpan
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import jp.juggler.subwaytooter.span.NetworkEmojiSpan
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import jp.juggler.subwaytooter.table.HighlightWord
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2018-03-10 17:22:13 +01:00
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import java.util.HashMap
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2018-01-20 17:59:38 +01:00
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import java.util.regex.Pattern
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2018-01-04 19:52:25 +01:00
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object EmojiDecoder {
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2018-03-22 14:49:22 +01:00
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// タンス側が落ち着いたら [^[:almun:]_] から [:space:]に切り替える
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// private fun isHeadOrAfterWhitespace( s:CharSequence,index:Int):Boolean {
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// val cp = s.codePointBefore(index)
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// return cp == -1 || CharacterGroup.isWhitespace(cp)
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// }
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2018-01-21 17:47:13 +01:00
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2018-03-22 14:49:22 +01:00
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private const val cpColon = ':'.toInt()
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2018-04-30 16:01:00 +02:00
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2018-03-22 14:49:22 +01:00
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fun canStartShortCode(s : CharSequence, index : Int) : Boolean {
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val cp = s.codePointBefore(index)
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return when(cp) {
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- 1 -> true
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cpColon -> false
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// rubyの (Letter | Mark | Decimal_Number) はNG
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// ftp://unicode.org/Public/5.1.0/ucd/UCD.html#General_Category_Values
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else -> when(java.lang.Character.getType(cp).toByte()) {
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// Letter
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// LCはエイリアスなので文字から得られることはないはず
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Character.UPPERCASE_LETTER,
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Character.LOWERCASE_LETTER,
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Character.TITLECASE_LETTER,
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Character.MODIFIER_LETTER,
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Character.OTHER_LETTER -> false
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// Mark
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Character.NON_SPACING_MARK,
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Character.COMBINING_SPACING_MARK,
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Character.ENCLOSING_MARK -> false
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// Decimal_Number
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Character.DECIMAL_DIGIT_NUMBER -> false
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else -> true
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}
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}
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// https://mastodon.juggler.jp/@tateisu/99727683089280157
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// https://github.com/tootsuite/mastodon/pull/5570 がマージされたらこっちに切り替える
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// return cp == -1 || CharacterGroup.isWhitespace(cp)
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}
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private class EmojiStringBuilder(internal val options : DecodeOptions) {
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2018-01-18 19:09:36 +01:00
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2018-01-04 19:52:25 +01:00
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internal val sb = SpannableStringBuilder()
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internal var normal_char_start = - 1
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2018-01-21 17:47:13 +01:00
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private fun openNormalText() {
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2018-01-19 14:15:39 +01:00
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if(normal_char_start == - 1) {
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normal_char_start = sb.length
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}
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}
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2018-01-04 19:52:25 +01:00
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internal fun closeNormalText() {
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if(normal_char_start != - 1) {
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val end = sb.length
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applyHighlight(normal_char_start, end)
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normal_char_start = - 1
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}
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}
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private fun applyHighlight(start : Int, end : Int) {
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2018-01-19 14:15:39 +01:00
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val list = options.highlightTrie?.matchList(sb, start, end) ?: return
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2018-01-18 19:09:36 +01:00
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for(range in list) {
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val word = HighlightWord.load(range.word)
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if(word != null) {
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options.hasHighlight = true
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sb.setSpan(
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HighlightSpan(word.color_fg, word.color_bg),
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range.start,
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range.end,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
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)
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if(word.sound_type != HighlightWord.SOUND_TYPE_NONE) {
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options.highlight_sound = word
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2018-01-04 19:52:25 +01:00
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}
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}
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}
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}
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2018-01-19 14:15:39 +01:00
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internal fun addNetworkEmojiSpan(text : String, url : String) {
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closeNormalText()
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val start = sb.length
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sb.append(text)
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val end = sb.length
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sb.setSpan(
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NetworkEmojiSpan(url),
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start,
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end,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
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)
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}
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internal fun addImageSpan(text : String?, @DrawableRes res_id : Int) {
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2018-04-30 16:01:00 +02:00
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val context = options.context
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if(context == null) {
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addUnicodeString("(missing context)")
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} else {
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closeNormalText()
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val start = sb.length
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sb.append(text)
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val end = sb.length
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sb.setSpan(
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EmojiImageSpan(context, res_id),
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start,
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end,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
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)
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}
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2018-01-19 14:15:39 +01:00
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}
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2018-01-04 19:52:25 +01:00
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internal fun addUnicodeString(s : String) {
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var i = 0
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val end = s.length
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while(i < end) {
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val remain = end - i
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var emoji : String? = null
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var image_id : Int? = null
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for(j in EmojiMap201709.utf16_max_length downTo 1) {
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2018-01-21 17:47:13 +01:00
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2018-01-04 19:52:25 +01:00
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if(j > remain) continue
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2018-01-21 17:47:13 +01:00
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2018-01-04 19:52:25 +01:00
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val check = s.substring(i, i + j)
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2018-01-21 17:47:13 +01:00
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2018-01-19 14:15:39 +01:00
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image_id = EmojiMap201709.sUTF16ToImageId[check] ?: continue
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2018-01-21 17:47:13 +01:00
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2018-01-19 14:15:39 +01:00
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emoji = if(j < remain && s[i + j].toInt() == 0xFE0E) {
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// 絵文字バリエーション・シーケンス(EVS)のU+FE0E(VS-15)が直後にある場合
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// その文字を絵文字化しない
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image_id = 0
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s.substring(i, i + j + 1)
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} else {
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check
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2018-01-04 19:52:25 +01:00
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}
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2018-01-21 17:47:13 +01:00
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2018-01-19 14:15:39 +01:00
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break
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2018-01-04 19:52:25 +01:00
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}
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2018-01-10 16:47:35 +01:00
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if(image_id != null && emoji != null) {
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2018-01-04 19:52:25 +01:00
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if(image_id == 0) {
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// 絵文字バリエーション・シーケンス(EVS)のU+FE0E(VS-15)が直後にある場合
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// その文字を絵文字化しない
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2018-01-19 14:15:39 +01:00
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openNormalText()
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2018-01-04 19:52:25 +01:00
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sb.append(emoji)
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} else {
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addImageSpan(emoji, image_id)
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}
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2018-01-10 16:47:35 +01:00
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i += emoji.length
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2018-01-04 19:52:25 +01:00
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} else {
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2018-01-19 14:15:39 +01:00
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openNormalText()
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val length = Character.charCount(s.codePointAt(i))
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if(length == 1) {
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2018-04-30 16:01:00 +02:00
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val c = s[i ++]
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sb.append(
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when(c) {
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2018-04-08 20:05:18 +02:00
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// https://github.com/tateisu/SubwayTooter/issues/69
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2018-04-30 16:01:00 +02:00
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'\u00AD' -> '-'
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else -> c
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}
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)
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2018-01-19 14:15:39 +01:00
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} else {
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sb.append(s.substring(i, i + length))
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i += length
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}
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2018-01-04 19:52:25 +01:00
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}
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}
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}
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2018-01-19 14:15:39 +01:00
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}
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private const val codepointColon = ':'.toInt()
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private const val codepointAtmark = '@'.toInt()
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private val shortCodeCharacterSet : SparseBooleanArray by lazy {
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val set = SparseBooleanArray()
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for(c in 'A' .. 'Z') set.put(c.toInt(), true)
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for(c in 'a' .. 'z') set.put(c.toInt(), true)
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for(c in '0' .. '9') set.put(c.toInt(), true)
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for(c in "+-_@:") set.put(c.toInt(), true)
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set
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}
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private interface ShortCodeSplitterCallback {
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fun onString(part : String) // shortcode以外の文字列
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fun onShortCode(part : String, name : String) // part : ":shortcode:", name : "shortcode"
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2018-01-04 19:52:25 +01:00
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}
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private fun splitShortCode(
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2018-01-19 14:15:39 +01:00
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s : String,
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startArg : Int,
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end : Int,
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callback : ShortCodeSplitterCallback
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2018-01-04 19:52:25 +01:00
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) {
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var start = startArg
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var i = start
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while(i < end) {
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2018-01-19 14:15:39 +01:00
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2018-01-04 19:52:25 +01:00
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// 絵文字パターンの開始位置を探索する
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start = i
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while(i < end) {
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val c = s.codePointAt(i)
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val width = Character.charCount(c)
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2018-01-18 19:09:36 +01:00
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if(c == codepointColon) {
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if(Pref.bpAllowNonSpaceBeforeEmojiShortcode(App1.pref)) {
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2018-01-04 19:52:25 +01:00
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// アプリ設定により、: の手前に空白を要求しない
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break
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2018-01-18 19:09:36 +01:00
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} else if(i + width < end && s.codePointAt(i + width) == codepointAtmark) {
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2018-01-04 19:52:25 +01:00
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// フレニコのプロフ絵文字 :@who: は手前の空白を要求しない
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break
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2018-03-22 14:49:22 +01:00
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} else if(canStartShortCode(s, i)) {
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// 絵文字ショートコードの開始とみなす
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2018-01-04 19:52:25 +01:00
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break
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}
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}
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i += width
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}
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2018-01-19 14:15:39 +01:00
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2018-01-04 19:52:25 +01:00
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if(i > start) {
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callback.onString(s.substring(start, i))
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}
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2018-01-19 14:15:39 +01:00
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2018-01-04 19:52:25 +01:00
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if(i >= end) break
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start = i ++ // start=コロンの位置 i=その次の位置
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2018-01-19 14:15:39 +01:00
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// 閉じるコロンを探す
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var posEndColon = - 1
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2018-01-04 19:52:25 +01:00
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while(i < end) {
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2018-01-19 14:15:39 +01:00
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val cp = s.codePointAt(i)
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if(cp == codepointColon) {
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posEndColon = i
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2018-01-04 19:52:25 +01:00
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break
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}
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2018-01-21 17:47:13 +01:00
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if(! shortCodeCharacterSet.get(cp, false)) {
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2018-01-04 19:52:25 +01:00
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break
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}
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2018-01-19 14:15:39 +01:00
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i += Character.charCount(cp)
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2018-01-04 19:52:25 +01:00
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}
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2018-01-19 14:15:39 +01:00
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// 閉じるコロンが見つからないか、shortcodeが短すぎるなら
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// startの位置のコロンだけを処理して残りは次のループで処理する
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if(posEndColon == - 1 || posEndColon - start < 3) {
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2018-01-04 19:52:25 +01:00
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callback.onString(":")
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i = start + 1
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continue
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}
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callback.onShortCode(
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2018-01-19 14:15:39 +01:00
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s.substring(start, posEndColon + 1) // ":shortcode:"
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, s.substring(start + 1, posEndColon) // "shortcode"
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2018-01-04 19:52:25 +01:00
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)
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2018-01-19 14:15:39 +01:00
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i = posEndColon + 1 // コロンの次の位置
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2018-01-04 19:52:25 +01:00
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}
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}
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2018-01-20 17:59:38 +01:00
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private val reNicoru = Pattern.compile("\\Anicoru\\d*\\z", Pattern.CASE_INSENSITIVE)
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private val reHohoemi = Pattern.compile("\\Ahohoemi\\d*\\z", Pattern.CASE_INSENSITIVE)
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2018-03-22 14:49:22 +01:00
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fun decodeEmoji(options : DecodeOptions, s : String) : Spannable {
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2018-01-21 17:47:13 +01:00
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val builder = EmojiStringBuilder(options)
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2018-03-22 14:49:22 +01:00
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2018-01-18 19:09:36 +01:00
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val emojiMapCustom = options.emojiMapCustom
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val emojiMapProfile = options.emojiMapProfile
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2018-01-04 19:52:25 +01:00
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splitShortCode(s, 0, s.length, object : ShortCodeSplitterCallback {
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override fun onString(part : String) {
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2018-01-18 19:09:36 +01:00
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builder.addUnicodeString(part)
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2018-01-04 19:52:25 +01:00
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}
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override fun onShortCode(part : String, name : String) {
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2018-03-10 17:22:13 +01:00
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// フレニコのプロフ絵文字
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if(emojiMapProfile != null && name.length >= 2 && name[0] == '@') {
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val emojiProfile = emojiMapProfile[name] ?: emojiMapProfile[name.substring(1)]
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if(emojiProfile != null) {
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val url = emojiProfile.url
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if(url.isNotEmpty()) {
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builder.addNetworkEmojiSpan(part, url)
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return
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}
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}
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}
|
2018-03-22 14:49:22 +01:00
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|
2018-01-18 19:09:36 +01:00
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// カスタム絵文字
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val emojiCustom = emojiMapCustom?.get(name)
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if(emojiCustom != null) {
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val url = when {
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Pref.bpDisableEmojiAnimation(App1.pref) && emojiCustom.static_url?.isNotEmpty() == true -> emojiCustom.static_url
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|
else -> emojiCustom.url
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2018-01-04 19:52:25 +01:00
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}
|
2018-01-18 19:09:36 +01:00
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builder.addNetworkEmojiSpan(part, url)
|
2018-01-04 19:52:25 +01:00
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|
return
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}
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|
2018-03-10 17:22:13 +01:00
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|
// 通常の絵文字
|
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|
|
val info = EmojiMap201709.sShortNameToImageId[name.toLowerCase().replace('-', '_')]
|
|
|
|
|
if(info != null) {
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|
|
builder.addImageSpan(part, info.image_id)
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|
|
|
|
return
|
2018-01-04 19:52:25 +01:00
|
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|
|
}
|
|
|
|
|
|
2018-01-20 17:59:38 +01:00
|
|
|
|
when {
|
2018-01-21 17:47:13 +01:00
|
|
|
|
reHohoemi.matcher(name).find() -> builder.addImageSpan(
|
|
|
|
|
part,
|
|
|
|
|
R.drawable.emoji_hohoemi
|
|
|
|
|
)
|
|
|
|
|
reNicoru.matcher(name).find() -> builder.addImageSpan(
|
|
|
|
|
part,
|
|
|
|
|
R.drawable.emoji_nicoru
|
|
|
|
|
)
|
2018-01-20 17:59:38 +01:00
|
|
|
|
else -> builder.addUnicodeString(part)
|
|
|
|
|
}
|
|
|
|
|
|
2018-01-04 19:52:25 +01:00
|
|
|
|
}
|
|
|
|
|
})
|
|
|
|
|
|
2018-01-18 19:09:36 +01:00
|
|
|
|
builder.closeNormalText()
|
2018-01-04 19:52:25 +01:00
|
|
|
|
|
2018-01-18 19:09:36 +01:00
|
|
|
|
return builder.sb
|
2018-01-04 19:52:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 投稿などの際、表示は不要だがショートコード=>Unicodeの解決を行いたい場合がある
|
|
|
|
|
// カスタム絵文字の変換も行わない
|
2018-03-22 14:49:22 +01:00
|
|
|
|
fun decodeShortCode(
|
|
|
|
|
s : String,
|
|
|
|
|
emojiMapCustom : HashMap<String, CustomEmoji>? = null
|
|
|
|
|
) : String {
|
2018-01-04 19:52:25 +01:00
|
|
|
|
|
|
|
|
|
val sb = StringBuilder()
|
|
|
|
|
|
|
|
|
|
splitShortCode(s, 0, s.length, object : ShortCodeSplitterCallback {
|
|
|
|
|
override fun onString(part : String) {
|
|
|
|
|
sb.append(part)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
override fun onShortCode(part : String, name : String) {
|
2018-03-10 17:22:13 +01:00
|
|
|
|
|
|
|
|
|
// カスタム絵文字にマッチするなら変換しない
|
|
|
|
|
val emojiCustom = emojiMapCustom?.get(name)
|
|
|
|
|
if(emojiCustom != null) {
|
|
|
|
|
sb.append(part)
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// カスタム絵文字ではなく通常の絵文字のショートコードなら絵文字に変換する
|
2018-01-04 19:52:25 +01:00
|
|
|
|
val info = EmojiMap201709.sShortNameToImageId[name.toLowerCase().replace('-', '_')]
|
|
|
|
|
sb.append(info?.unified ?: part)
|
|
|
|
|
}
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
return sb.toString()
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 入力補完用。絵文字ショートコード一覧を部分一致で絞り込む
|
2018-01-18 19:09:36 +01:00
|
|
|
|
internal fun searchShortCode(
|
|
|
|
|
context : Context,
|
|
|
|
|
prefix : String,
|
|
|
|
|
limit : Int
|
|
|
|
|
) : ArrayList<CharSequence> {
|
2018-01-04 19:52:25 +01:00
|
|
|
|
val dst = ArrayList<CharSequence>()
|
|
|
|
|
for(shortCode in EmojiMap201709.sShortNameList) {
|
|
|
|
|
if(dst.size >= limit) break
|
|
|
|
|
if(! shortCode.contains(prefix)) continue
|
|
|
|
|
|
|
|
|
|
val info = EmojiMap201709.sShortNameToImageId[shortCode] ?: continue
|
|
|
|
|
|
|
|
|
|
val sb = SpannableStringBuilder()
|
|
|
|
|
val start = 0
|
2018-01-19 14:15:39 +01:00
|
|
|
|
sb.append(' ')
|
2018-01-04 19:52:25 +01:00
|
|
|
|
val end = sb.length
|
|
|
|
|
|
2018-01-18 19:09:36 +01:00
|
|
|
|
sb.setSpan(
|
|
|
|
|
EmojiImageSpan(context, info.image_id),
|
|
|
|
|
start,
|
|
|
|
|
end,
|
|
|
|
|
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
|
|
|
|
|
)
|
2018-01-19 14:15:39 +01:00
|
|
|
|
|
2018-01-04 19:52:25 +01:00
|
|
|
|
sb.append(' ')
|
2018-01-19 14:15:39 +01:00
|
|
|
|
.append(':')
|
|
|
|
|
.append(shortCode)
|
|
|
|
|
.append(':')
|
|
|
|
|
|
2018-01-04 19:52:25 +01:00
|
|
|
|
dst.add(sb)
|
|
|
|
|
}
|
|
|
|
|
return dst
|
|
|
|
|
}
|
|
|
|
|
}
|