add list of known dictionaries for more convenient links

app/src/main/assets/dictionaries_in_dict_repo.csv

@@ -0,0 +1,85 @@
+main,ar,
+main,hy,
+main,as,
+main,bn,
+main,by,
+main,bg,
+main,ca,
+main,hr,
+main,cs,
+main,da,
+main,nl,
+main,en_AU,
+main,en_GB,
+main,en_US,
+emoji,en,
+main,eo,
+main,fi,
+emoji,fr,
+main,fr,
+main,gl,
+main,ka,
+main,de,
+main,gom,
+main,el,
+main,gu,
+main,he,
+main,iw,
+main,hi,
+main,hi_ZZ,
+main,hu,
+main,it,
+main,kn,
+main,ks,
+main,lv,
+main,lt,
+main,lb,
+main,mai,
+main,ml,
+main,mr,
+main,nb,
+main,or,
+main,pl,
+main,pt_BR,
+main,pt_PT,
+main,pa,
+main,ro,
+emoji,ru,
+main,ru,
+main,sa,
+main,sat,
+main,sr_ZZ,
+main,sr,
+main,sd,
+main,sl,
+main,es,
+main,sv,
+main,ta,
+main,te,
+main,tok,
+main,tcy,
+main,tr,
+main,uk,
+main,ur,
+main,af,exp
+main,ar,exp
+main,bn,exp
+main,bg,exp
+main,cs,exp
+main,en_GB,exp
+main,en_US,exp
+symbols,en,exp
+symbols,fr,exp
+main,fr,exp
+main,de_AT,exp
+main,de,exp
+main,id,exp
+main,it,exp
+main,kab,exp
+addon,ml_ZZ,exp
+main,ru,exp
+main,sk,exp
+main,es,exp
+main,uk,exp
+main,vi,exp
+

app/src/main/java/helium314/keyboard/latin/common/LocaleUtils.kt

@@ -91,7 +91,7 @@ object LocaleUtils {
      * @param tested the locale to test.
      * @return a constant that measures how well the tested locale matches the reference locale.
      */
-    private fun getMatchLevel(reference: Locale, tested: Locale): Int {
+    fun getMatchLevel(reference: Locale, tested: Locale): Int {
         if (reference == tested) return LOCALE_FULL_MATCH
         if (reference.toString().isEmpty()) return LOCALE_ANY_MATCH
         if (reference.language != tested.language) return LOCALE_NO_MATCH

app/src/main/java/helium314/keyboard/latin/settings/LanguageSettingsDialog.kt

@@ -268,10 +268,41 @@ class LanguageSettingsDialog(
         binding.secondaryLocales.addView(rowBinding.root)
     }
 
+    private fun createDictionaryText(locale: Locale, context: Context): String {
+        val link = "<a href='$DICTIONARY_URL'>" + context.getString(R.string.dictionary_link_text) + "</a>"
+        val message = context.getString(R.string.add_dictionary, link)
+        val knownDicts = mutableListOf<String>()
+        context.assets.open("dictionaries_in_dict_repo.csv").reader().forEachLine {
+            if (it.isBlank()) return@forEachLine
+            val (type, localeString, experimental) = it.split(",")
+            // we use a locale string here because that's in the dictionaries repo
+            // ideally the repo would switch to language tag, but not sure how this is handled in the dictionary header
+            // further, the dicts in the dictionaries repo should be compatible with other AOSP-based keyboards
+            val dictLocale = localeString.constructLocale()
+            if (LocaleUtils.getMatchLevel(locale, dictLocale) < 3) return@forEachLine
+            val rawDictString = "$type: ${dictLocale.getDisplayName(context.resources.configuration.locale())}"
+            val dictString = if (experimental.isEmpty()) rawDictString
+                else context.getString(R.string.available_dictionary_experimental, rawDictString)
+            val dictBaseUrl = DICTIONARY_URL + DICTIONARY_DOWNLOAD_SUFFIX +
+                    if (experimental.isEmpty()) DICTIONARY_NORMAL_SUFFIX else DICTIONARY_EXPERIMENTAL_SUFFIX
+            val dictLink = dictBaseUrl + type + "_" + localeString.lowercase() + ".dict"
+            val fullText = "<li><a href='$dictLink'>$dictString</a></li>"
+            knownDicts.add(fullText)
+        }
+        if (knownDicts.isEmpty()) return message
+        return """
+            <p>$message</p>
+            <b>${context.getString(R.string.dictionary_available)}</b>
+            <ul>
+            ${knownDicts.joinToString("\n")}
+            </ul>
+        """.trimIndent()
+    }
+
     private fun fillDictionariesView() {
         binding.addDictionary.setOnClickListener {
-            val link = "<a href='$DICTIONARY_URL'>" + context.getString(R.string.dictionary_link_text) + "</a>"
-            val message = SpannableStringUtils.fromHtml(context.getString(R.string.add_dictionary, link))
+            val messageRawText = createDictionaryText(mainLocale, context)
+            val message = SpannableStringUtils.fromHtml(messageRawText)
             val dialog = Builder(context)
                 .setTitle(R.string.add_new_dictionary_title)
                 .setMessage(message)

app/src/main/java/helium314/keyboard/latin/utils/DictionaryUtils.kt

@@ -85,3 +85,6 @@ private fun hasAnythingOtherThanExtractedMainDictionary(dir: File) =
     dir.listFiles()?.any { it.name != DictionaryInfoUtils.getExtractedMainDictFilename() } != false
 
 const val DICTIONARY_URL = "https://codeberg.org/Helium314/aosp-dictionaries"
+const val DICTIONARY_DOWNLOAD_SUFFIX = "/src/branch/main/"
+const val DICTIONARY_NORMAL_SUFFIX = "dictionaries/"
+const val DICTIONARY_EXPERIMENTAL_SUFFIX = "dictionaries_experimental/"

app/src/main/res/values/strings.xml

@@ -547,6 +547,8 @@ New dictionary:
     <string name="add_dictionary">"Select a dictionary to add. Dictionaries in .dict format can be downloaded %s."</string>
     <!-- Title of the link to the download page inserted into messages (add_dictionary and no_dictionary_message) -->
     <string name="dictionary_link_text">"here"</string>
+    <!-- Title of an item in the list of available dictionaries when the dictionary is experimental. This string will be interpreted as HTML -->
+    <string name="available_dictionary_experimental">"%s (experimental)"</string>
     <!-- Text shown when dictionary file could not be read -->
     <string name="dictionary_file_error">"Error: Selected file is not a valid dictionary file"</string>
     <!-- Text shown when dictionary file is not for the selected locale -->