KodeView/androidExample/src/main/java/dev/snipme/androidexample/MainActivity.kt at 28366fbb0212845233c0915be485f507472c06d7 · SnipMeDev/KodeView · GitHub

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package dev.snipme.androidexample

import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.appcompat.app.AppCompatActivity
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.material3.Divider
import androidx.compose.material3.HorizontalDivider
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.material3.TextFieldDefaults
import androidx.compose.material3.darkColorScheme
import androidx.compose.material3.lightColorScheme
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import dev.snipme.highlights.Highlights
import dev.snipme.highlights.model.SyntaxLanguage
import dev.snipme.highlights.model.SyntaxTheme
import dev.snipme.highlights.model.SyntaxThemes
import dev.snipme.highlights.model.SyntaxThemes.useDark
import dev.snipme.kodeview.view.CodeTextView
import dev.snipme.kodeview.view.material3.CodeEditText

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        setContent {
            App()
        }
    }
}

private val sampleCode =
    """
    class Main {
        public static void main(String[] args) {
            int abcd = 100;
        }
    }
    """.trimIndent()

@Composable
fun App() {
    val isDarkModeState = remember { mutableStateOf(false) }
    val areLineNumbersEnabled = remember { mutableStateOf(true) }
    val isDarkMode = isDarkModeState.value
    val lineNumbersEnabled = areLineNumbersEnabled.value

    val highlightsState = remember {
        mutableStateOf(
            Highlights.Builder(code = sampleCode).build()
        )
    }

    val highlights = highlightsState.value

    fun updateSyntaxTheme(theme: SyntaxTheme) {
        highlightsState.value = highlights.getBuilder()
            .theme(theme)
            .build()
    }

    fun updateSyntaxLanguage(language: SyntaxLanguage) {
        highlightsState.value = highlights.getBuilder()
            .language(language)
            .build()
    }

    MaterialTheme(colorScheme = if (isDarkMode) darkColorScheme() else lightColorScheme()) {
        Surface {
            Column(
                modifier = Modifier
                    .fillMaxSize()
                    .padding(16.dp),
                horizontalAlignment = Alignment.Start,
                verticalArrangement = Arrangement.SpaceBetween
            ) {
                Spacer(Modifier.height(8.dp))

                ThemeSwitcher(
                    isDarkMode,
                    modifier = Modifier.fillMaxWidth(),
                ) { setToDarkMode ->
                    isDarkModeState.value = setToDarkMode
                    updateSyntaxTheme(highlights.getTheme().useDark(setToDarkMode)!!)
                }

                Spacer(Modifier.height(16.dp))

                LineNumberSwitcher(lineNumbersEnabled, modifier = Modifier.fillMaxWidth()) { lineNumberEnabled ->
                    areLineNumbersEnabled.value = lineNumberEnabled
                }

                Text(
                    modifier = Modifier.fillMaxWidth(),
                    text = "KodeView",
                    fontSize = 18.sp,
                    textAlign = TextAlign.Center,
                )

                Spacer(modifier = Modifier.size(16.dp))

                CodeTextView(highlights = highlights, showLineNumbers = lineNumbersEnabled)

                Spacer(modifier = Modifier.size(16.dp))

                HorizontalDivider()

                Spacer(modifier = Modifier.size(16.dp))

                Text("Edit this...")
                CodeEditText(
                    highlights = highlights,
                    onValueChange = { textValue ->
                        highlightsState.value = highlights.getBuilder()
                            .code(textValue)
                            .build()
                    },
                    colors = TextFieldDefaults.colors(
                        unfocusedContainerColor = Color.Transparent,
                        focusedContainerColor = Color.Transparent,
                        focusedIndicatorColor = Color.Transparent,
                        unfocusedIndicatorColor = Color.Transparent,
                        disabledIndicatorColor = Color.Transparent,
                        errorIndicatorColor = Color.Transparent,
                    ),
                    showLineNumbers = lineNumbersEnabled,
                )

                Spacer(modifier = Modifier.size(16.dp))

                Spacer(modifier = Modifier.weight(1f))

                Dropdown(
                    options = SyntaxThemes.getNames(),
                    selected = SyntaxThemes.themes().keys.indexOf(highlights.getTheme().key),
                ) { selectedThemeName ->
                    updateSyntaxTheme(
                        SyntaxThemes.themes(isDarkMode)[selectedThemeName.lowercase()]!!
                    )
                }

                Spacer(modifier = Modifier.size(16.dp))

                Dropdown(
                    options = SyntaxLanguage.getNames(),
                    selected = SyntaxLanguage.getNames().indexOfFirst {
                        it.equals(highlights.getLanguage().name, ignoreCase = true)
                    }) { selectedLanguage ->
                    updateSyntaxLanguage(SyntaxLanguage.getByName(selectedLanguage)!!)
                }
            }
        }
    }
}