Add dropdown for selecting groups

Summary: This diff refactors the group selection to the dropdown. As with the growing list of grps, dropdown will be easy to search and scale

Reviewed By: mweststrate

Differential Revision: D21175998

fbshipit-source-id: 90f1a81dfc6c2232cd2dcf767ed01205fc63e1fd

desktop/app/src/chrome/DropDownSearchView.tsx

@@ -0,0 +1,221 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {
+  SearchInput,
+  styled,
+  colors,
+  SearchIcon,
+  SearchBox,
+  FlexColumn,
+  FlexRow,
+  Text,
+  Tooltip,
+  Line,
+  Spacer,
+  Glyph,
+} from '../ui';
+import React, {useState, useCallback, useEffect, useRef} from 'react';
+
+const RowComponentContainer = styled(FlexRow)({
+  height: '24px',
+  margin: '4px',
+  alignItems: 'center',
+  flexShrink: 0,
+});
+
+const Separator = styled(Line)({margin: '2px 0px'});
+
+const OverlayContainer = styled.div({
+  height: '100%',
+  overflow: 'visible',
+  position: 'absolute',
+  top: '30px',
+  left: '0px',
+  width: '100%',
+  zIndex: 100,
+});
+
+const ListViewContainer = styled(FlexColumn)({
+  borderWidth: '0px 1px 1px',
+  borderStyle: 'solid',
+  borderColor: colors.greyTint2,
+  margin: '0px 10px',
+  maxHeight: '300px',
+  backgroundColor: colors.white,
+});
+
+const StyledSearchInput = styled(SearchInput)({
+  height: '20px',
+  margin: '4px',
+});
+
+type Element = {id: string; label: string};
+type Props = {
+  list: Array<Element>;
+  onSelect?: (id: string, label: string) => void;
+  handleNoResults?: (value: string) => void;
+  selectedElementID?: string;
+};
+
+function RowComponent(props: {
+  elem: Element;
+  onClick: (id: string) => void;
+  selected?: boolean;
+}) {
+  return (
+    <RowComponentContainer
+      onClick={() => {
+        props.onClick(props.elem.id);
+      }}>
+      <Text>{props.elem.label}</Text>
+      <Spacer />
+      {props.selected && (
+        <Glyph color={colors.highlightTint15} name="checkmark" />
+      )}
+    </RowComponentContainer>
+  );
+}
+
+export default function (props: Props) {
+  const {list, handleNoResults, onSelect, selectedElementID} = props;
+  const initialElement = list.find((e) => {
+    return e.id === selectedElementID;
+  });
+  const [filteredElements, setFilteredElements] = useState<Array<Element>>([]);
+  const [searchedValue, setSearchedValue] = useState<string>(
+    initialElement ? initialElement.label : '',
+  );
+  const [selectedElement, setSelectedElement] = useState<Element | undefined>(
+    initialElement,
+  );
+  const [focussed, setFocus] = useState<boolean>(false);
+  const wrapperRef = useRef<HTMLDivElement>(null);
+
+  const onChangeCallBack = useCallback(
+    (e: React.ChangeEvent<HTMLInputElement>) => {
+      setSearchedValue(e.target.value.trim());
+    },
+    [setSearchedValue],
+  );
+
+  const onSelectCallBack = useCallback(
+    (id: string) => {
+      const elem = list.find((e) => {
+        return e.id === id;
+      });
+      if (elem) {
+        setSearchedValue(elem.label);
+        setSelectedElement(elem);
+      }
+      setFocus(false);
+      if (elem && onSelect) {
+        onSelect(elem.id, elem.label);
+      }
+    },
+    [list, onSelect, setSearchedValue],
+  );
+
+  const onFocusCallBack = useCallback(
+    (_e: React.FocusEvent<HTMLInputElement>) => {
+      setFocus(true);
+    },
+    [setFocus],
+  );
+
+  // Effect to filter items
+  useEffect(() => {
+    if (searchedValue.length > 0) {
+      const filteredValues = list.filter((s) => {
+        return s.label.toLowerCase().includes(searchedValue.toLowerCase());
+      });
+      if (filteredValues.length === 0 && handleNoResults) {
+        handleNoResults(searchedValue);
+      }
+      setFilteredElements(filteredValues);
+    } else if (focussed) {
+      setFilteredElements(list);
+    }
+  }, [searchedValue, handleNoResults, list, setFilteredElements, focussed]);
+
+  // Effect to detect outside click
+  useEffect(() => {
+    //TODO: Generalise this effect so that other components can use it.
+    function handleClickOutside(event: MouseEvent) {
+      const current = wrapperRef.current;
+      const target = event.target;
+      if (
+        wrapperRef &&
+        current &&
+        target &&
+        !current.contains(target as Node) &&
+        focussed
+      ) {
+        if (selectedElement && onSelect) {
+          setSearchedValue(selectedElement.label);
+          onSelect(selectedElement.id, selectedElement.label);
+        }
+        setFocus(false);
+      }
+    }
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => {
+      document.removeEventListener('mousedown', handleClickOutside);
+    };
+  }, [
+    wrapperRef,
+    selectedElement,
+    onSelect,
+    setSearchedValue,
+    setFocus,
+    focussed,
+  ]);
+  const validationError =
+    filteredElements.length === 0 && searchedValue.length > 0
+      ? 'Unsupported element, please try clearing your text to see the list of elements.'
+      : '';
+  return (
+    <FlexColumn ref={wrapperRef}>
+      <Tooltip title={validationError} options={{position: 'below'}}>
+        <SearchBox isInvalidInput={validationError.length > 0}>
+          <SearchIcon
+            name="magnifying-glass"
+            color={colors.macOSTitleBarIcon}
+            size={16}
+          />
+          <StyledSearchInput
+            placeholder={'Search Groups'}
+            onChange={onChangeCallBack}
+            onFocus={onFocusCallBack}
+            value={searchedValue}
+            isValidInput={false}
+          />
+        </SearchBox>
+      </Tooltip>
+      {filteredElements.length > 0 && focussed && (
+        <OverlayContainer>
+          <ListViewContainer scrollable={true}>
+            {filteredElements.map((e, idx) => {
+              return (
+                <>
+                  <RowComponent
+                    elem={e}
+                    onClick={onSelectCallBack}
+                    selected={selectedElement && e.id == selectedElement.id}
+                  />
+                  {idx < filteredElements.length - 1 && <Separator />}
+                </>
+              );
+            })}
+          </ListViewContainer>
+        </OverlayContainer>
+      )}
+    </FlexColumn>
+  );
+}

desktop/app/src/ui/components/Line.tsx

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import styled from '@emotion/styled';
+import View from './View';
+import {colors} from './colors';
+
+const Line = styled(View)<{color?: string}>(({color}) => ({
+  backgroundColor: color ? color : colors.greyTint2,
+  height: 1,
+  width: 'auto',
+  flexShrink: 0,
+}));
+export default Line;

desktop/app/src/ui/components/searchable/Searchable.tsx

@@ -30,15 +30,21 @@ const SearchBar = styled(Toolbar)({
 });
 SearchBar.displayName = 'Searchable:SearchBar';
 
-export const SearchBox = styled(FlexBox)({
-  backgroundColor: colors.white,
-  borderRadius: '999em',
-  border: `1px solid ${colors.light15}`,
-  height: '100%',
-  width: '100%',
-  alignItems: 'center',
-  paddingLeft: 4,
-});
+export const SearchBox = styled(FlexBox)<{isInvalidInput?: boolean}>(
+  (props) => {
+    return {
+      backgroundColor: colors.white,
+      borderRadius: '999em',
+      border: `1px solid ${
+        !props.isInvalidInput ? colors.light15 : colors.red
+      }`,
+      height: '100%',
+      width: '100%',
+      alignItems: 'center',
+      paddingLeft: 4,
+    };
+  },
+);
 SearchBox.displayName = 'Searchable:SearchBox';
 
 export const SearchInput = styled(Input)<{

desktop/app/src/ui/index.tsx

@@ -121,7 +121,7 @@ export {default as Tooltip} from './components/Tooltip';
 export {default as TooltipProvider} from './components/TooltipProvider';
 export {default as ResizeSensor} from './components/ResizeSensor';
 export {default as StatusIndicator} from './components/StatusIndicator';
-
+export {default as Line} from './components/Line';
 // typography
 export {default as HorizontalRule} from './components/HorizontalRule';
 export {default as VerticalRule} from './components/VerticalRule';

desktop/static/icons.json

@@ -147,7 +147,8 @@
   ],
   "magnifying-glass": [
     16,
-    20
+    20,
+    24
   ],
   "messages": [
     12