Upstream changes (#23)

feature/photoviewer/src/main/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+</manifest>

feature/photoviewer/src/main/kotlin/com/meloda/app/fast/photoviewer/PhotoViewViewModel.kt

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+package com.meloda.app.fast.photoviewer
+
+import androidx.lifecycle.ViewModel
+import com.meloda.app.fast.common.extensions.setValue
+import com.meloda.app.fast.photoviewer.model.PhotoViewArguments
+import com.meloda.app.fast.photoviewer.model.PhotoViewState
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+
+interface PhotoViewViewModel {
+    val state: StateFlow<PhotoViewState>
+
+    fun setArguments(arguments: PhotoViewArguments)
+}
+
+class PhotoViewViewModelImpl : PhotoViewViewModel, ViewModel() {
+    override val state = MutableStateFlow(PhotoViewState.EMPTY)
+
+    override fun setArguments(arguments: PhotoViewArguments) {
+        state.setValue { old -> old.copy(images = arguments.images) }
+    }
+}

feature/photoviewer/src/main/kotlin/com/meloda/app/fast/photoviewer/di/PhotoViewDI.kt

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+package com.meloda.app.fast.photoviewer.di
+
+import com.meloda.app.fast.photoviewer.PhotoViewViewModel
+import com.meloda.app.fast.photoviewer.PhotoViewViewModelImpl
+import org.koin.androidx.viewmodel.dsl.viewModelOf
+import org.koin.dsl.bind
+import org.koin.dsl.module
+
+val photoViewModule = module {
+    viewModelOf(::PhotoViewViewModelImpl) bind PhotoViewViewModel::class
+}

feature/photoviewer/src/main/kotlin/com/meloda/app/fast/photoviewer/model/PhotoViewArguments.kt

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+package com.meloda.app.fast.photoviewer.model
+
+import androidx.compose.runtime.Immutable
+import com.meloda.app.fast.common.UiImage
+
+@Immutable
+data class PhotoViewArguments(
+    val images: List<UiImage>
+)

feature/photoviewer/src/main/kotlin/com/meloda/app/fast/photoviewer/model/PhotoViewState.kt

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+package com.meloda.app.fast.photoviewer.model
+
+import androidx.compose.runtime.Immutable
+import com.meloda.app.fast.common.UiImage
+
+@Immutable
+data class PhotoViewState(
+    val images: List<UiImage>
+) {
+
+    companion object {
+        val EMPTY: PhotoViewState = PhotoViewState(
+            images = emptyList()
+        )
+    }
+}

feature/photoviewer/src/main/kotlin/com/meloda/app/fast/photoviewer/presentation/PhotoViewScreenContent.kt

@@ -0,0 +1,180 @@
+package com.meloda.app.fast.photoviewer.presentation
+
+import android.graphics.drawable.ColorDrawable
+import android.widget.Toast
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.defaultMinSize
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.pager.HorizontalPager
+import androidx.compose.foundation.pager.PagerState
+import androidx.compose.foundation.pager.rememberPagerState
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.rounded.ArrowBack
+import androidx.compose.material.icons.rounded.MoreVert
+import androidx.compose.material3.DropdownMenu
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.painter.ColorPainter
+import androidx.compose.ui.graphics.painter.Painter
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.colorResource
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.DpOffset
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import coil.compose.AsyncImage
+import com.meloda.app.fast.common.UiImage
+import com.meloda.app.fast.photoviewer.PhotoViewViewModel
+import com.meloda.app.fast.photoviewer.model.PhotoViewState
+
+@OptIn(
+    ExperimentalFoundationApi::class,
+)
+@Composable
+fun PhotoViewScreenContent(
+    onBackClick: () -> Unit,
+    viewModel: PhotoViewViewModel
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    val images = state.images
+
+    val pagerState = rememberPagerState(pageCount = { images.size })
+
+    // TODO: 23/11/2023, Danil Nikolaev: заюзать штуку для цветов статус бара и навбара
+    Box(
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .background(Color(0xffb00b69))
+        ) {
+            Spacer(
+                modifier = Modifier
+                    .statusBarsPadding()
+                    .padding(top = 56.dp)
+            )
+            Pager(
+                pagerState = pagerState,
+                state = state
+            )
+            Spacer(modifier = Modifier.navigationBarsPadding())
+        }
+
+        AppBar(onBackClick = onBackClick)
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun AppBar(onBackClick: () -> Unit) {
+    val context = LocalContext.current
+
+    var dropdownMenuShown by remember {
+        mutableStateOf(false)
+    }
+
+    TopAppBar(
+        title = {},
+        navigationIcon = {
+            IconButton(onClick = onBackClick) {
+                Icon(
+                    imageVector = Icons.AutoMirrored.Rounded.ArrowBack,
+                    contentDescription = "Back button"
+                )
+            }
+        },
+        actions = {
+            IconButton(
+                onClick = { dropdownMenuShown = true }
+            ) {
+                Icon(
+                    imageVector = Icons.Rounded.MoreVert,
+                    contentDescription = "Options"
+                )
+            }
+
+            DropdownMenu(
+                modifier = Modifier.defaultMinSize(minWidth = 140.dp),
+                expanded = dropdownMenuShown,
+                onDismissRequest = { dropdownMenuShown = false },
+                offset = DpOffset(x = (10).dp, y = (-60).dp)
+            ) {
+                DropdownMenuItem(
+                    onClick = {
+                        Toast.makeText(context, "Save clicked", Toast.LENGTH_SHORT).show()
+                        dropdownMenuShown = false
+                    },
+                    text = { Text(text = "Save") },
+                )
+            }
+        }
+    )
+}
+
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+fun Pager(
+    pagerState: PagerState,
+    padding: PaddingValues = PaddingValues(0.dp),
+    state: PhotoViewState
+) {
+    val images = state.images
+
+    HorizontalPager(
+        state = pagerState,
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding),
+        key = { index -> images[index].hashCode() }
+    ) { page ->
+        val model = images[page].getImage()
+        if (model is Painter) {
+            Image(
+                painter = model,
+                contentDescription = "Image",
+                modifier = Modifier.fillMaxSize()
+            )
+        } else {
+            AsyncImage(
+                model = model,
+                contentDescription = "Image",
+                modifier = Modifier.fillMaxSize(),
+                placeholder = ColorPainter(Color.DarkGray),
+                error = ColorPainter(Color.Red)
+            )
+        }
+    }
+}
+
+@Composable
+fun UiImage.getImage(): Any {
+    return when (this) {
+        is UiImage.Color -> ColorDrawable(color)
+        is UiImage.ColorResource -> ColorDrawable(colorResource(id = resId).toArgb())
+        is UiImage.Resource -> painterResource(id = resId)
+        is UiImage.Simple -> drawable
+        is UiImage.Url -> url
+    }
+}