Screens.kt

package com.github.jetbrains.rssreader.androidApp.composeui

import android.content.Intent
import android.net.Uri
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.collectAsState
import androidx.compose.ui.platform.LocalContext
import cafe.adriel.voyager.core.screen.Screen
import cafe.adriel.voyager.navigator.LocalNavigator
import cafe.adriel.voyager.navigator.currentOrThrow
import com.github.jetbrains.rssreader.app.FeedAction
import com.github.jetbrains.rssreader.app.FeedStore
import com.google.accompanist.insets.LocalWindowInsets
import com.google.accompanist.insets.rememberInsetsPaddingValues
import com.google.accompanist.swiperefresh.SwipeRefresh
import com.google.accompanist.swiperefresh.SwipeRefreshIndicator
import com.google.accompanist.swiperefresh.rememberSwipeRefreshState
import org.koin.core.component.KoinComponent
import org.koin.core.component.inject

class MainScreen : Screen, KoinComponent {
    @Composable
    override fun Content() {
        val store: FeedStore by inject()
        val context = LocalContext.current
        val navigator = LocalNavigator.currentOrThrow
        val state = store.observeState().collectAsState()
        LaunchedEffect(Unit) {
            store.dispatch(FeedAction.Refresh(false))
        }
        SwipeRefresh(
            state = rememberSwipeRefreshState(state.value.progress),
            indicatorPadding = rememberInsetsPaddingValues(LocalWindowInsets.current.systemBars),
            clipIndicatorToPadding = false,
            indicator = { indicatorState, refreshTriggerDistance ->
                SwipeRefreshIndicator(
                    state = indicatorState,
                    refreshTriggerDistance = refreshTriggerDistance,
                    scale = true //https://github.com/google/accompanist/issues/572
                )
            },
            onRefresh = { store.dispatch(FeedAction.Refresh(true)) }
        ) {
            MainFeed(
                store = store,
                onPostClick = { post ->
                    post.link?.let { url ->
                        context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url)))
                    }
                },
                onEditClick = {
                    navigator.push(FeedListScreen())
                }
            )
        }
    }
}

class FeedListScreen : Screen, KoinComponent {
    @Composable
    override fun Content() {
        val store: FeedStore by inject()
        FeedList(store = store)
    }
}