SysctlGUI/app/src/main/kotlin/com/androidvip/sysctlgui/ui/main/MainScreen.kt at 9e300954576dea7756d915a34717b49979636ff1 · Lennoard/SysctlGUI · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
package com.androidvip.sysctlgui.ui.main

import androidx.activity.compose.LocalOnBackPressedDispatcherOwner
import androidx.compose.animation.AnimatedVisibility
import androidx.compose.animation.expandHorizontally
import androidx.compose.animation.expandVertically
import androidx.compose.animation.fadeIn
import androidx.compose.animation.fadeOut
import androidx.compose.animation.shrinkHorizontally
import androidx.compose.animation.shrinkVertically
import androidx.compose.animation.slideInHorizontally
import androidx.compose.animation.slideInVertically
import androidx.compose.animation.slideOutHorizontally
import androidx.compose.animation.slideOutVertically
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.navigationBarsPadding
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.Scaffold
import androidx.compose.material3.SnackbarDuration
import androidx.compose.material3.SnackbarHost
import androidx.compose.material3.SnackbarHostState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.PreviewDynamicColors
import androidx.compose.ui.tooling.preview.PreviewLightDark
import androidx.lifecycle.compose.collectAsStateWithLifecycle
import androidx.navigation.NavHostController
import androidx.navigation.compose.rememberNavController
import com.androidvip.sysctlgui.core.navigation.UiRoute
import com.androidvip.sysctlgui.design.theme.SysctlGuiTheme
import com.androidvip.sysctlgui.design.utils.isLandscape
import org.koin.androidx.compose.koinViewModel

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun MainScreen(
    viewModel: MainViewModel = koinViewModel(),
    startDestination: UiRoute = UiRoute.BrowseParams
) {
    val state by viewModel.uiState.collectAsStateWithLifecycle()
    val navController = rememberNavController()
    val snackbarHostState = remember { SnackbarHostState() }

    LaunchedEffect(Unit) {
        viewModel.effect.collect { effect ->
            if (effect is MainViewEffect.ShowSnackbar) {
                val result = snackbarHostState.showSnackbar(
                    message = effect.message,
                    actionLabel = effect.actionLabel,
                    duration = SnackbarDuration.Long
                )
                viewModel.onEvent(MainViewEvent.OnSnackbarResult(result))
            }
        }
    }

    MainScreenContent(state, navController, snackbarHostState, startDestination)
}

@OptIn(ExperimentalMaterial3Api::class)
@Composable
private fun MainScreenContent(
    state: MainViewState,
    navController: NavHostController,
    snackbarHostState: SnackbarHostState,
    startDestination: UiRoute = UiRoute.BrowseParams
) {
    val onBackPressedDispatcherOwner = LocalOnBackPressedDispatcherOwner.current
    val isLandscape = isLandscape()

    Scaffold(
        contentWindowInsets = WindowInsets(0, 0, 0, 0),
        topBar = {
            AnimatedVisibility(
                visible = state.showTopBar,
                enter = expandVertically() + slideInVertically() + fadeIn(),
                exit = shrinkVertically() + slideOutVertically() + fadeOut(),
                label = "TopBar"
            ) {
                MainTopBar(
                    title = state.topBarTitle,
                    showSearch = state.showSearchAction,
                    showBack = state.showBackButton,
                    onSearchPressed = { navController.navigate(UiRoute.Search) },
                    onBackPressed = {
                        onBackPressedDispatcherOwner?.onBackPressedDispatcher?.onBackPressed()
                    }
                )
            }
        },
        bottomBar = {
            AnimatedVisibility(
                visible = state.showNavBar && !isLandscape,
                enter = expandVertically() + slideInVertically { it / 2 } + fadeIn(),
                exit = shrinkVertically() + slideOutVertically { it / 2 } + fadeOut(),
                label = "BottomBar"
            ) {
                MainNavBar(navController = navController)
            }
        },
        snackbarHost = {
            SnackbarHost(snackbarHostState)
        },
        content = { innerPadding ->
            Row(Modifier.padding(innerPadding)) {
                if (isLandscape) {
                    AnimatedVisibility(
                        visible = state.showNavBar,
                        enter = expandHorizontally() + slideInHorizontally { it / 2 } + fadeIn(),
                        exit = shrinkHorizontally() + slideOutHorizontally { it / 2 } + fadeOut(),
                        label = "NavRail"
                    ) {
                        MainNavRail(navController = navController)
                    }
                }

                AppNavHost(
                    modifier = Modifier
                        .weight(1f)
                        .then(if (isLandscape) Modifier.navigationBarsPadding() else Modifier),
                    innerPadding = innerPadding,
                    navController = navController,
                    startDestination = startDestination
                )
            }
        }
    )
}

@Composable
@PreviewLightDark
@PreviewDynamicColors
private fun MainScreenPreview() {
    SysctlGuiTheme(dynamicColor = true) {
        MainScreenContent(
            state = MainViewState(),
            navController = rememberNavController(),
            snackbarHostState = remember { SnackbarHostState() }
        )
    }
}