Merge branch 'master' into tma853-tag-selection-screen

# Conflicts:
#	src/components/common/index.ts
#	src/screens/profile/CaptionScreen.tsx

3 files changed, 442 insertions, 0 deletions

diff --git a/src/components/common/Draggable.tsx b/src/components/common/Draggable.tsx
new file mode 100644
index 00000000..edd29b78
--- /dev/null
+++ b/src/components/common/Draggable.tsx
@@ -0,0 +1,364 @@
+/**
+ *	* https://github.com/tongyy/react-native-draggable
+ *
+ */
+
+import React from 'react';
+import {
+  Animated,
+  Dimensions,
+  GestureResponderEvent,
+  Image,
+  PanResponder,
+  PanResponderGestureState,
+  StyleProp,
+  StyleSheet,
+  Text,
+  TouchableOpacity,
+  View,
+  ViewStyle,
+} from 'react-native';
+
+function clamp(number: number, min: number, max: number) {
+  return Math.max(min, Math.min(number, max));
+}
+
+interface IProps {
+  /**** props that should probably be removed in favor of "children" */
+  renderText?: string;
+  isCircle?: boolean;
+  renderSize?: number;
+  imageSource?: number;
+  renderColor?: string;
+  /**** */
+  children?: React.ReactNode;
+  shouldReverse?: boolean;
+  disabled?: boolean;
+  debug?: boolean;
+  animatedViewProps?: object;
+  touchableOpacityProps?: object;
+  onDrag?: (
+    e: GestureResponderEvent,
+    gestureState: PanResponderGestureState,
+  ) => void;
+  onShortPressRelease?: (event: GestureResponderEvent) => void;
+  onDragRelease?: (
+    e: GestureResponderEvent,
+    gestureState: PanResponderGestureState,
+  ) => void;
+  onLongPress?: (event: GestureResponderEvent) => void;
+  onPressIn?: (event: GestureResponderEvent) => void;
+  onPressOut?: (event: GestureResponderEvent) => void;
+  onRelease?: (event: GestureResponderEvent, wasDragging: boolean) => void;
+  onReverse?: () => {x: number; y: number};
+  x?: number;
+  y?: number;
+  // z/elevation should be removed because it doesn't sync up visually and haptically
+  z?: number;
+  minX?: number;
+  minY?: number;
+  maxX?: number;
+  maxY?: number;
+  onDragStart?: () => void;
+}
+
+export default function Draggable(props: IProps) {
+  const {
+    renderText,
+    isCircle,
+    renderSize,
+    imageSource,
+    renderColor,
+    children,
+    shouldReverse,
+    disabled,
+    debug,
+    animatedViewProps,
+    touchableOpacityProps,
+    onDrag,
+    onShortPressRelease,
+    onDragRelease,
+    onLongPress,
+    onPressIn,
+    onPressOut,
+    onRelease,
+    x,
+    y,
+    z,
+    minX,
+    minY,
+    maxX,
+    maxY,
+    onDragStart,
+  } = props;
+
+  // The Animated object housing our xy value so that we can spring back
+  const pan = React.useRef(new Animated.ValueXY());
+  // Always set to xy value of pan, would like to remove
+  const offsetFromStart = React.useRef({x: 0, y: 0});
+  // Width/Height of Draggable (renderSize is arbitrary if children are passed in)
+  const childSize = React.useRef({x: renderSize, y: renderSize});
+  // Top/Left/Right/Bottom location on screen from start of most recent touch
+  const startBounds = React.useRef({top: 0, bottom: 0, left: 0, right: 0});
+  // Whether we're currently dragging or not
+  const isDragging = React.useRef(false);
+
+  // const [zIndex, setZIndex] = React.useState(z);
+  const zIndex = z;
+
+  const getBounds = React.useCallback(() => {
+    const left = x + offsetFromStart.current.x;
+    const top = y + offsetFromStart.current.y;
+    return {
+      left,
+      top,
+      right: left + childSize.current.x,
+      bottom: top + childSize.current.y,
+    };
+  }, [x, y]);
+
+  const shouldStartDrag = React.useCallback(
+    (gs) => {
+      return !disabled && (Math.abs(gs.dx) > 2 || Math.abs(gs.dy) > 2);
+    },
+    [disabled],
+  );
+
+  const reversePosition = React.useCallback(() => {
+    Animated.spring(pan.current, {
+      toValue: {x: 0, y: 0},
+      useNativeDriver: false,
+    }).start();
+  }, [pan]);
+
+  const onPanResponderRelease = React.useCallback(
+    (e: GestureResponderEvent, gestureState: PanResponderGestureState) => {
+      isDragging.current = false;
+      if (onDragRelease) {
+        onDragRelease(e, gestureState);
+        onRelease(e, true);
+      }
+      if (!shouldReverse) {
+        pan.current.flattenOffset();
+      } else {
+        reversePosition();
+      }
+    },
+    [onDragRelease, shouldReverse, onRelease, reversePosition],
+  );
+
+  const onPanResponderGrant = React.useCallback(
+    (_: GestureResponderEvent) => {
+      startBounds.current = getBounds();
+      isDragging.current = true;
+      if (!shouldReverse) {
+        pan.current.setOffset(offsetFromStart.current);
+        pan.current.setValue({x: 0, y: 0});
+      }
+      onDragStart();
+    },
+    [getBounds, shouldReverse],
+  );
+
+  const handleOnDrag = React.useCallback(
+    (e: GestureResponderEvent, gestureState: PanResponderGestureState) => {
+      const {dx, dy} = gestureState;
+      const {top, right, left, bottom} = startBounds.current;
+      const far = 999999999;
+      const changeX = clamp(
+        dx,
+        Number.isFinite(minX) ? minX - left : -far,
+        Number.isFinite(maxX) ? maxX - right : far,
+      );
+      const changeY = clamp(
+        dy,
+        Number.isFinite(minY) ? minY - top : -far,
+        Number.isFinite(maxY) ? maxY - bottom : far,
+      );
+      pan.current.setValue({x: changeX, y: changeY});
+      onDrag(e, gestureState);
+    },
+    [maxX, maxY, minX, minY, onDrag],
+  );
+
+  const panResponder = React.useMemo(() => {
+    return PanResponder.create({
+      onMoveShouldSetPanResponder: (_, gestureState) =>
+        shouldStartDrag(gestureState),
+      onMoveShouldSetPanResponderCapture: (_, gestureState) =>
+        shouldStartDrag(gestureState),
+      onPanResponderGrant,
+      // onPanResponderStart,
+      onPanResponderMove: Animated.event([], {
+        // Typed incorrectly https://reactnative.dev/docs/panresponder
+        listener: handleOnDrag,
+        useNativeDriver: false,
+      }),
+      // onPanResponderRelease: (_) => {
+      //   // console.log('end');
+      //   // setZIndex(1);
+      // },
+    });
+  }, [
+    handleOnDrag,
+    onPanResponderGrant,
+    onPanResponderRelease,
+    shouldStartDrag,
+  ]);
+
+  // TODO Figure out a way to destroy and remove offsetFromStart entirely
+  React.useEffect(() => {
+    const curPan = pan.current; // Using an instance to avoid losing the pointer before the cleanup
+    if (!shouldReverse) {
+      curPan.addListener((c) => (offsetFromStart.current = c));
+    }
+    return () => {
+      // Typed incorrectly
+      curPan.removeAllListeners();
+    };
+  }, [shouldReverse]);
+
+  const positionCss: StyleProp<ViewStyle> = React.useMemo(() => {
+    const Window = Dimensions.get('window');
+
+    return {
+      position: 'absolute',
+      top: 0,
+      left: 0,
+      width: Window.width,
+      height: Window.height,
+      elevation: zIndex,
+      zIndex: zIndex,
+    };
+  }, [zIndex]);
+
+  const dragItemCss = React.useMemo(() => {
+    const style: StyleProp<ViewStyle> = {
+      top: y,
+      left: x,
+      elevation: zIndex,
+      zIndex: zIndex,
+    };
+    if (renderColor) {
+      style.backgroundColor = renderColor;
+    }
+    if (isCircle) {
+      style.borderRadius = renderSize;
+    }
+
+    if (children) {
+      return {
+        ...style,
+        alignSelf: 'baseline',
+      };
+    }
+    return {
+      ...style,
+      justifyContent: 'center',
+      width: renderSize,
+      height: renderSize,
+    };
+  }, [children, isCircle, renderColor, renderSize, x, y, zIndex]);
+
+  const touchableContent = React.useMemo(() => {
+    if (children) {
+      return children;
+    } else if (imageSource) {
+      return (
+        <Image
+          style={{width: renderSize, height: renderSize}}
+          source={imageSource}
+        />
+      );
+    } else {
+      return <Text style={styles.text}>{renderText}</Text>;
+    }
+  }, [children, imageSource, renderSize, renderText]);
+
+  const handleOnLayout = React.useCallback((event) => {
+    const {height, width} = event.nativeEvent.layout;
+    childSize.current = {x: width, y: height};
+  }, []);
+
+  // const handlePressOut = React.useCallback(
+  //   (event: GestureResponderEvent) => {
+  //     onPressOut(event);
+  //     if (!isDragging.current) {
+  //       onRelease(event, false);
+  //     }
+  //   },
+  //   [onPressOut, onRelease],
+  // );
+
+  const getDebugView = React.useCallback(() => {
+    const {width, height} = Dimensions.get('window');
+    const far = 9999;
+    const constrained = minX || maxX || minY || maxY;
+    if (!constrained) {
+      return null;
+    } // could show other debug info here
+    const left = minX || -far;
+    const right = maxX ? width - maxX : -far;
+    const top = minY || -far;
+    const bottom = maxY ? height - maxY : -far;
+    return (
+      <View
+        pointerEvents="box-none"
+        style={{left, right, top, bottom, ...styles.debugView}}
+      />
+    );
+  }, [maxX, maxY, minX, minY]);
+
+  return (
+    <View pointerEvents="box-none" style={positionCss}>
+      {debug && getDebugView()}
+      <Animated.View
+        pointerEvents="box-none"
+        {...animatedViewProps}
+        {...panResponder.panHandlers}
+        style={pan.current.getLayout()}>
+        <TouchableOpacity
+          {...touchableOpacityProps}
+          onLayout={handleOnLayout}
+          style={dragItemCss}
+          disabled={true}
+          onPress={onShortPressRelease}
+          onLongPress={onLongPress}
+          onPressIn={onPressIn}
+          onPressOut={onPressOut}>
+          {touchableContent}
+        </TouchableOpacity>
+      </Animated.View>
+    </View>
+  );
+}
+
+/***** Default props and types */
+
+Draggable.defaultProps = {
+  renderText: '＋',
+  renderSize: 36,
+  shouldReverse: false,
+  disabled: false,
+  debug: false,
+  onDrag: () => {},
+  onShortPressRelease: () => {},
+  onDragRelease: () => {},
+  onLongPress: () => {},
+  onPressIn: () => {},
+  onPressOut: () => {},
+  onRelease: () => {},
+  x: 0,
+  y: 0,
+  z: 1,
+};
+
+const styles = StyleSheet.create({
+  text: {color: '#fff', textAlign: 'center'},
+  debugView: {
+    backgroundColor: '#ff000044',
+    position: 'absolute',
+    borderColor: '#fced0ecc',
+    borderWidth: 4,
+  },
+});
diff --git a/src/components/common/MomentTags.tsx b/src/components/common/MomentTags.tsx
new file mode 100644
index 00000000..fb9ef5be
--- /dev/null
+++ b/src/components/common/MomentTags.tsx
@@ -0,0 +1,77 @@
+import React, {MutableRefObject, useEffect, useState} from 'react';
+import {MomentTagType, ProfilePreviewType} from '../../types';
+import TaggDraggable from '../taggs/TaggDraggable';
+import Draggable from './Draggable';
+
+interface MomentTagsProps {
+  editing: boolean;
+  tags: MomentTagType[];
+  imageRef: MutableRefObject<null>;
+  deleteFromList?: (user: ProfilePreviewType) => void;
+}
+
+const MomentTags: React.FC<MomentTagsProps> = ({
+  editing,
+  tags,
+  imageRef,
+  deleteFromList,
+}) => {
+  const [offset, setOffset] = useState([0, 0]);
+  const [curStart, setCurStart] = useState([0, 0]);
+  const [imageDimensions, setImageDimensions] = useState([0, 0]);
+
+  useEffect(() => {
+    imageRef.current.measure((fx, fy, width, height, px, py) => {
+      setOffset([px, py]);
+      setImageDimensions([width, height]);
+    });
+  }, []);
+
+  if (!tags) {
+    return null;
+  }
+
+  return editing && deleteFromList ? (
+    <>
+      {tags.map((tag) => (
+        <Draggable
+          x={imageDimensions[0] / 2 - curStart[0] / 2 + offset[0]}
+          y={offset[1] + imageDimensions[1] / 2 - curStart[1] / 2}
+          minX={offset[0]}
+          minY={offset[1]}
+          maxX={imageDimensions[0] + offset[0]}
+          maxY={imageDimensions[1] + offset[1]}
+          onDragStart={() => null}>
+          <TaggDraggable
+            taggedUser={tag.user}
+            editingView={true}
+            deleteFromList={() => deleteFromList(tag.user)}
+            setStart={setCurStart}
+          />
+        </Draggable>
+      ))}
+    </>
+  ) : (
+    <>
+      {tags.map((tag) => (
+        <Draggable
+          x={imageDimensions[0] / 2 - curStart[0] / 2 + tag.x}
+          y={imageDimensions[0] / 2 - curStart[0] / 2 + tag.y}
+          minX={offset[0]}
+          minY={offset[1]}
+          maxX={imageDimensions[0] + offset[0]}
+          maxY={imageDimensions[1] + offset[1]}
+          onDragStart={() => null}>
+          <TaggDraggable
+            taggedUser={tag.user}
+            editingView={editing}
+            deleteFromList={() => null}
+            setStart={setCurStart}
+          />
+        </Draggable>
+      ))}
+    </>
+  );
+};
+
+export default MomentTags;
diff --git a/src/components/common/index.ts b/src/components/common/index.ts
index 44edbe5f..4f5c0232 100644
--- a/src/components/common/index.ts
+++ b/src/components/common/index.ts
@@ -28,3 +28,4 @@ export {default as TaggTypeahead} from './TaggTypeahead';
 export {default as TaggUserRowCell} from './TaggUserRowCell';
 export {default as LikeButton} from './LikeButton';
 export {default as TaggUserSelectionCell} from './TaggUserSelectionCell';
+export {default as MomentTags} from './MomentTags';