commonMain.tech.skot.libraries.tabbar.SKBottomNavFrame.kt Maven / Gradle / Ivy

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package tech.skot.libraries.tabbar

import tech.skot.core.components.SKComponent
import tech.skot.core.components.SKFrame
import tech.skot.core.components.SKScreen
import tech.skot.libraries.tabbar.di.skTabbarViewInjector


class SKBottomNavFrame(val tabs: List, selectedTab: TabConf = tabs.first()) :
    SKComponent() {
    constructor(vararg tabs: TabConf) : this(tabs.toList())

    open class TabConf(
        val tab: SKTab<*>,
        val screen: SKScreen<*>?,
        val onReSelect: (() -> Unit)? = null
    )

    companion object {
        fun tabWithStack(
            tab: SKTab<*>,
            rootScreen: () -> SKScreen<*>,
            onRootAndBackPressed: (() -> Unit)? = null
        ): TabConf {
            val tabScreen = SKTabScreen(rootScreen(), onRootAndBackPressed)
            return TabConf(
                tab = tab,
                screen = tabScreen,
                onReSelect = {
                    tabScreen.stack.content = rootScreen()
                }
            )
        }
    }


    private val frame = SKFrame(
        screens = tabs.mapNotNull { it.screen }.toSet()
    )


    var selected: TabConf? = null
        set(value) {
            field = value
            tabs.forEach {
                it.tab.selected = it == value
            }
            frame.screen = value?.screen
        }

    init {
        tabs.forEach { tabConf ->
            if (tabConf.screen != null) {

                tabConf.tab.onSelect = {
                    if (selected == tabConf) {
                        tabConf.onReSelect?.invoke()
                    } else {
                        selected = tabConf
                    }
                }
            }
        }

        selected = selectedTab
    }

    override val view = skTabbarViewInjector.skBottomNavFrame(frame.view, tabs.map { it.tab.view })

}