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import * as React from 'react';
import { View, Text, StyleSheet, TouchableOpacity, FlatList, Dimensions, Alert } from 'react-native';
import * as MediaLibrary from "expo-media-library";
import PhotoSmall from "./PhotoSmall"
import { getIp } from "./Settings"
const w = Dimensions.get("window").width
// const h = Dimensions.get("window").height
const IMG_SQUARE_WIDTH = (w - 18) / 5;
const IMG_SQUARE_HEIGHT = IMG_SQUARE_WIDTH + 20;
export default class Gallery extends React.Component {
constructor(props) {
super(props)
this.state = {
imgs: [],
cols: 5,
imgWidth: IMG_SQUARE_WIDTH,
imgHeight: IMG_SQUARE_HEIGHT,
flatlistkey: 0,
selectedImgs: [],
}
this.gridList = this.gridList.bind(this)
this.addToSelection = this.addToSelection.bind(this)
this.imgPress = this.imgPress.bind(this)
this.getImgs = this.getImgs.bind(this)
this.removeSelected = this.removeSelected.bind(this)
this.uploadSelected = this.uploadSelected.bind(this)
}
async getImgs() {
let photos = await MediaLibrary.getAssetsAsync({
first: 40, // ilość pobranych assetów
mediaType: 'photo', // typ pobieranych danych, photo jest domyślne
sortBy: "creationTime",
})
console.log("ASSET", photos.assets[0])
this.setState({ imgs: photos.assets, flatlistkey: this.state.flatlistkey + 1 })
}
componentDidMount() {
this.props.navigation.addListener('focus', this.getImgs)
this.getImgs()
}
gridList() {
this.setState({
cols: this.state.cols === 5 ? 1 : 5,
imgWidth: this.state.imgWidth === IMG_SQUARE_WIDTH ? w - 18 : IMG_SQUARE_WIDTH,
imgHeight: this.state.imgWidth === IMG_SQUARE_WIDTH ? IMG_SQUARE_HEIGHT + 30 : IMG_SQUARE_HEIGHT,
flatlistkey: this.state.flatlistkey + 1,
})
}
addToSelection(id) {
if (this.state.selectedImgs.includes(id)) {
this.setState({
selectedImgs: this.state.selectedImgs.filter(i => i !== id)
})
} else {
this.setState({
selectedImgs: [...this.state.selectedImgs, id]
})
}
}
imgPress(uri, id) {
if (this.state.selectedImgs.length)
this.addToSelection(id)
else
this.props.navigation.navigate("photoBig", { source: { uri }, id })
}
async removeSelected() {
await MediaLibrary.deleteAssetsAsync(this.state.selectedImgs);
this.setState({ selectedImgs: [] })
this.getImgs();
}
async uploadSelected() {
if (this.state.selectedImgs.length === 0) return;
const photos = this.state.imgs.filter(i => this.state.selectedImgs.includes(i.id));
console.log(photos)
const body = new FormData();
for (const p of photos) {
body.append('photo', {
uri: p.uri,
type: 'image/jpeg',
name: p.uri.split('/').pop(),
})
}
const url = await getIp() + "/upload"
await fetch(url, {
method: "POST",
body
})
Alert.alert("Alert", "Galllery - files uploaded and saved!");
}
render() {
return (
<View style={styles.cont}>
<View style={styles.nav}>
<TouchableOpacity styles={styles.navBtn} onPress={this.gridList}><Text style={styles.navTxt}>GRID / LIST</Text></TouchableOpacity>
<TouchableOpacity styles={styles.navBtn} onPress={() => this.props.navigation.navigate("camera", { albumId: this.state.imgs[0].albumId })}><Text style={styles.navTxt}>OPEN{'\n'}CAMERA</Text></TouchableOpacity>
<TouchableOpacity styles={styles.navBtn} onPress={this.removeSelected}><Text style={styles.navTxt}>REMOVE{'\n'}SELECTED</Text></TouchableOpacity>
<TouchableOpacity styles={styles.navBtn} onPress={this.uploadSelected}><Text style={styles.navTxt}>UPLOAD{'\n'}SELECTED</Text></TouchableOpacity>
<TouchableOpacity styles={styles.navBtn} onPress={() => this.props.navigation.navigate("settings")}><Text style={styles.navTxt}>SETT</Text></TouchableOpacity>
</View>
<FlatList
// ListHeaderComponent={
// }
data={this.state.imgs}
renderItem={({ item }) => {
// console.log(item.uri)
return (
<TouchableOpacity
onPress={() => this.imgPress(item.uri, item.id)}
onLongPress={() => this.addToSelection(item.id)}
>
<PhotoSmall source={{ uri: item.uri }} size={{
width: this.state.imgWidth,
height: this.state.imgHeight,
}} style={{ opacity: this.state.selectedImgs.includes(item.id) ? 0.2 : 1 }} id={item.id} />
</TouchableOpacity>
)
}}
keyExtractor={p => p.id}
contentContainerStyle={styles.list}
numColumns={this.state.cols}
key={this.state.flatlistkey}
/>
</View>
)
}
}
const styles = StyleSheet.create({
cont: {
},
nav: {
flexDirection: "row",
margin: 10,
},
navTxt: {
fontSize: w / 26,
margin: 5,
},
navBtn: {
flex: 1
},
list: {
margin: 9,
paddingBottom: 110,
// height: "100%",
// marginBottom: -20,
},
})
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