feature(language): add vi string + config Vn

Signed-off-by: Hung <>

Author: chihung93

app/src/main/kotlin/com/simplemobiletools/keyboard/activities/SettingsActivity.kt

@@ -14,6 +14,7 @@ import com.simplemobiletools.keyboard.extensions.getKeyboardLanguages
 import com.simplemobiletools.keyboard.helpers.KEYBOARD_HEIGHT_MULTIPLIER_LARGE
 import com.simplemobiletools.keyboard.helpers.KEYBOARD_HEIGHT_MULTIPLIER_MEDIUM
 import com.simplemobiletools.keyboard.helpers.KEYBOARD_HEIGHT_MULTIPLIER_SMALL
+import com.simplemobiletools.keyboard.helpers.LANGUAGE_VIETNAMESE_TELEX
 import kotlinx.android.synthetic.main.activity_settings.*
 import java.util.*
 import kotlin.system.exitProcess

app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/Constants.kt

@@ -51,3 +51,4 @@ const val KEYBOARD_HEIGHT_MULTIPLIER_MEDIUM = 2
 const val KEYBOARD_HEIGHT_MULTIPLIER_LARGE = 3
 
 const val EMOJI_SPEC_FILE_PATH = "media/emoji_spec.txt"
+const val LANGUAGE_VN_TELEX = "language/extension.json"

app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/EmojiHelper.kt

@@ -1,8 +1,11 @@
 package com.simplemobiletools.keyboard.helpers
 
 import android.content.Context
+import org.json.JSONObject
+import java.io.InputStream
 
 private var cachedEmojiData: MutableList<String>? = null
+val cachedVNTelexData: HashMap<String,String> = HashMap()
 
 /**
  * Reads the emoji list at the given [path] and returns an parsed [MutableList]. If the
@@ -59,3 +62,27 @@ fun parseRawEmojiSpecsFile(context: Context, path: String): MutableList<String>
     cachedEmojiData = emojis
     return emojis
 }
+
+
+fun parseRawJsonSpecsFile(context: Context, path: String): HashMap<String,String> {
+    if (cachedVNTelexData.isNotEmpty()) {
+        return cachedVNTelexData
+    }
+
+    try {
+        val  inputStream: InputStream = context.assets.open(path)
+        val jsonString = inputStream.bufferedReader().use{it.readText()}
+        val jsonData = JSONObject(jsonString)
+        val rulesObj = jsonData.getJSONObject("rules")
+        val ruleKeys = rulesObj.keys()
+        while (ruleKeys.hasNext()){
+            val key = ruleKeys.next()
+            val value = rulesObj.getString(key)
+            cachedVNTelexData[key] = value
+        }
+    } catch (ex: Exception) {
+        ex.printStackTrace()
+        return HashMap()
+    }
+    return cachedVNTelexData
+}

app/src/main/kotlin/com/simplemobiletools/keyboard/services/SimpleKeyboardIME.kt

@@ -178,10 +178,38 @@ class SimpleKeyboardIME : InputMethodService(), OnKeyboardActionListener, Shared
                         switchToLetters = true
                     }
                 } else {
-                    inputConnection.commitText(codeChar.toString(), 1)
-                    if (originalText == null) {
-                        updateShiftKeyState()
+                    when {
+                        originalText != null && originalText.isNotEmpty() && cachedVNTelexData.isNotEmpty() -> {
+                            val fullText = originalText.toString() + codeChar.toString()
+                            val lastIndexEmpty = if (fullText.contains(" ")) {
+                                fullText.lastIndexOf(" ")
+                            } else 0
+                            if (lastIndexEmpty >= 0) {
+                                val word = fullText.subSequence(lastIndexEmpty, fullText.length).trim().toString()
+                                val wordChars = word.toCharArray()
+                                val predictWord = StringBuilder()
+                                for (char in wordChars.size -1 downTo 0) {
+                                    predictWord.append(wordChars[char])
+                                    val shouldChangeText = predictWord.reverse().toString()
+                                    if (cachedVNTelexData.containsKey(shouldChangeText)) {
+                                        inputConnection.setComposingRegion(fullText.length - shouldChangeText.length, fullText.length)
+                                        inputConnection.setComposingText(cachedVNTelexData[shouldChangeText], fullText.length)
+                                        inputConnection.setComposingRegion(fullText.length, fullText.length)
+                                        return
+                                    }
+                                }
+                                inputConnection.commitText(codeChar.toString(), 1)
+                            }
+                        }
+                        else -> {
+                            inputConnection.commitText(codeChar.toString(), 1)
+                            if (originalText == null) {
+                                updateShiftKeyState()
+                            }
+                        }
                     }
+
+
                 }
             }
         }

app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt

@@ -418,6 +418,11 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
         }
 
         setupEmojiPalette(toolbarColor = toolbarColor, backgroundColor = mBackgroundColor, textColor = mTextColor)
+        if(context.config.keyboardLanguage == LANGUAGE_VIETNAMESE_TELEX){
+            setupLanguageTelex()
+        }else{
+            cachedVNTelexData.clear()
+        }
         setupStoredClips()
     }
 
@@ -1506,6 +1511,13 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
         }
     }
 
+    // For Vietnamese - Telex
+    private fun setupLanguageTelex() {
+        ensureBackgroundThread {
+            parseRawJsonSpecsFile(context, LANGUAGE_VN_TELEX)
+        }
+    }
+
     private fun setupEmojiAdapter(emojis: List<String>) {
         mEmojiPaletteHolder?.emojis_list?.apply {
             val emojiItemWidth = context.resources.getDimensionPixelSize(R.dimen.emoji_item_size)