2 files changed, 322 insertions, 0 deletions
diff --git a/webui/src/pages/bug/labels/LabelMenu.tsx b/webui/src/pages/bug/labels/LabelMenu.tsx
new file mode 100644
index 00000000..645f472c
--- /dev/null
+++ b/webui/src/pages/bug/labels/LabelMenu.tsx
@@ -0,0 +1,309 @@
+import React, { useEffect, useRef, useState } from 'react';
+
+import { IconButton } from '@material-ui/core';
+import Menu from '@material-ui/core/Menu';
+import MenuItem from '@material-ui/core/MenuItem';
+import TextField from '@material-ui/core/TextField';
+import { makeStyles, withStyles } from '@material-ui/core/styles';
+import { darken } from '@material-ui/core/styles/colorManipulator';
+import CheckIcon from '@material-ui/icons/Check';
+import SettingsIcon from '@material-ui/icons/Settings';
+
+import { Color } from '../../../gqlTypes';
+import {
+  ListLabelsDocument,
+  useListLabelsQuery,
+} from '../../list/ListLabels.generated';
+import { BugFragment } from '../Bug.generated';
+import { GetBugDocument } from '../BugQuery.generated';
+
+import { useSetLabelMutation } from './SetLabel.generated';
+
+type DropdownTuple = [string, string, Color];
+
+type FilterDropdownProps = {
+  children: React.ReactNode;
+  dropdown: DropdownTuple[];
+  hasFilter?: boolean;
+  itemActive: (key: string) => boolean;
+  onClose: () => void;
+  toggleLabel: (key: string, active: boolean) => void;
+  onNewItem: (name: string) => void;
+} & React.ButtonHTMLAttributes<HTMLButtonElement>;
+
+const CustomTextField = withStyles((theme) => ({
+  root: {
+    margin: '0 8px 12px 8px',
+    '& label.Mui-focused': {
+      margin: '0 2px',
+      color: theme.palette.text.secondary,
+    },
+    '& .MuiInput-underline::before': {
+      borderBottomColor: theme.palette.divider,
+    },
+    '& .MuiInput-underline::after': {
+      borderBottomColor: theme.palette.divider,
+    },
+  },
+}))(TextField);
+
+const ITEM_HEIGHT = 48;
+
+const useStyles = makeStyles((theme) => ({
+  gearBtn: {
+    ...theme.typography.body2,
+    color: theme.palette.text.secondary,
+    padding: theme.spacing(0, 1),
+    fontWeight: 400,
+    textDecoration: 'none',
+    display: 'flex',
+    background: 'none',
+    border: 'none',
+    '&:hover': {
+      backgroundColor: 'transparent',
+      color: theme.palette.text.primary,
+    },
+  },
+  menu: {
+    '& .MuiMenu-paper': {
+      //somehow using "width" won't override the default width...
+      minWidth: '35ch',
+    },
+  },
+  labelcolor: {
+    minWidth: '0.5rem',
+    display: 'flex',
+    borderRadius: '0.25rem',
+    marginRight: '5px',
+    marginLeft: '3px',
+  },
+  labelsheader: {
+    display: 'flex',
+    flexDirection: 'row',
+  },
+  menuRow: {
+    display: 'flex',
+    alignItems: 'initial',
+  },
+}));
+
+const _rgb = (color: Color) =>
+  'rgb(' + color.R + ',' + color.G + ',' + color.B + ')';
+
+// Create a style object from the label RGB colors
+const createStyle = (color: Color) => ({
+  backgroundColor: _rgb(color),
+  borderBottomColor: darken(_rgb(color), 0.2),
+});
+
+function FilterDropdown({
+  children,
+  dropdown,
+  hasFilter,
+  itemActive,
+  onClose,
+  toggleLabel,
+  onNewItem,
+}: FilterDropdownProps) {
+  const [open, setOpen] = useState(false);
+  const [filter, setFilter] = useState<string>('');
+  const buttonRef = useRef<HTMLButtonElement>(null);
+  const searchRef = useRef<HTMLButtonElement>(null);
+  const classes = useStyles({ active: false });
+
+  useEffect(() => {
+    searchRef && searchRef.current && searchRef.current.focus();
+  }, [filter]);
+
+  return (
+    <>
+      <div className={classes.labelsheader}>
+        Labels
+        <IconButton
+          ref={buttonRef}
+          onClick={() => setOpen(!open)}
+          className={classes.gearBtn}
+          disableRipple
+        >
+          <SettingsIcon fontSize={'small'} />
+        </IconButton>
+      </div>
+
+      <Menu
+        className={classes.menu}
+        getContentAnchorEl={null}
+        ref={searchRef}
+        anchorOrigin={{
+          vertical: 'bottom',
+          horizontal: 'left',
+        }}
+        transformOrigin={{
+          vertical: 'top',
+          horizontal: 'left',
+        }}
+        open={open}
+        onClose={() => {
+          setOpen(false);
+          onClose();
+        }}
+        onExited={() => setFilter('')}
+        anchorEl={buttonRef.current}
+        PaperProps={{
+          style: {
+            maxHeight: ITEM_HEIGHT * 4.5,
+            width: '25ch',
+          },
+        }}
+      >
+        {hasFilter && (
+          <CustomTextField
+            onChange={(e) => {
+              const { value } = e.target;
+              setFilter(value);
+            }}
+            onKeyDown={(e) => e.stopPropagation()}
+            value={filter}
+            label={`Filter ${children}`}
+          />
+        )}
+        {filter !== '' &&
+          dropdown.filter((d) => d[1].toLowerCase() === filter.toLowerCase())
+            .length <= 0 && (
+            <MenuItem
+              style={{ whiteSpace: 'normal', wordBreak: 'break-all' }}
+              onClick={() => {
+                onNewItem(filter);
+                setFilter('');
+                setOpen(false);
+              }}
+            >
+              Create new label '{filter}'
+            </MenuItem>
+          )}
+        {dropdown
+          .sort(function (x, y) {
+            // true values first
+            return itemActive(x[1]) === itemActive(y[1]) ? 0 : x ? -1 : 1;
+          })
+          .filter((d) => d[1].toLowerCase().includes(filter.toLowerCase()))
+          .map(([key, value, color]) => (
+            <MenuItem
+              style={{ whiteSpace: 'normal', wordBreak: 'break-word' }}
+              onClick={() => {
+                toggleLabel(key, itemActive(key));
+              }}
+              key={key}
+              selected={itemActive(key)}
+            >
+              <div className={classes.menuRow}>
+                {itemActive(key) && <CheckIcon />}
+                <div
+                  className={classes.labelcolor}
+                  style={createStyle(color)}
+                />
+                {value}
+              </div>
+            </MenuItem>
+          ))}
+      </Menu>
+    </>
+  );
+}
+
+type Props = {
+  bug: BugFragment;
+};
+function LabelMenu({ bug }: Props) {
+  const { data: labelsData } = useListLabelsQuery();
+  const [bugLabelNames, setBugLabelNames] = useState(
+    bug.labels.map((l) => l.name)
+  );
+  const [selectedLabels, setSelectedLabels] = useState(
+    bug.labels.map((l) => l.name)
+  );
+
+  const [setLabelMutation] = useSetLabelMutation();
+
+  function toggleLabel(key: string, active: boolean) {
+    const labels: string[] = active
+      ? selectedLabels.filter((label) => label !== key)
+      : selectedLabels.concat([key]);
+    setSelectedLabels(labels);
+  }
+
+  function diff(oldState: string[], newState: string[]) {
+    const added = newState.filter((x) => !oldState.includes(x));
+    const removed = oldState.filter((x) => !newState.includes(x));
+    return {
+      added: added,
+      removed: removed,
+    };
+  }
+
+  const changeBugLabels = (selectedLabels: string[]) => {
+    const labels = diff(bugLabelNames, selectedLabels);
+    if (labels.added.length > 0 || labels.removed.length > 0) {
+      setLabelMutation({
+        variables: {
+          input: {
+            prefix: bug.id,
+            added: labels.added,
+            Removed: labels.removed,
+          },
+        },
+        refetchQueries: [
+          // TODO: update the cache instead of refetching
+          {
+            query: GetBugDocument,
+            variables: { id: bug.id },
+          },
+          {
+            query: ListLabelsDocument,
+          },
+        ],
+        awaitRefetchQueries: true,
+      })
+        .then((res) => {
+          setSelectedLabels(selectedLabels);
+          setBugLabelNames(selectedLabels);
+        })
+        .catch((e) => console.log(e));
+    }
+  };
+
+  function isActive(key: string) {
+    return selectedLabels.includes(key);
+  }
+
+  function createNewLabel(name: string) {
+    changeBugLabels(selectedLabels.concat([name]));
+  }
+
+  let labels: any = [];
+  if (
+    labelsData?.repository &&
+    labelsData.repository.validLabels &&
+    labelsData.repository.validLabels.nodes
+  ) {
+    labels = labelsData.repository.validLabels.nodes.map((node) => [
+      node.name,
+      node.name,
+      node.color,
+    ]);
+  }
+
+  return (
+    <FilterDropdown
+      onClose={() => changeBugLabels(selectedLabels)}
+      itemActive={isActive}
+      toggleLabel={toggleLabel}
+      dropdown={labels}
+      onNewItem={createNewLabel}
+      hasFilter
+    >
+      Labels
+    </FilterDropdown>
+  );
+}
+
+export default LabelMenu;
diff --git a/webui/src/pages/bug/labels/SetLabel.graphql b/webui/src/pages/bug/labels/SetLabel.graphql
new file mode 100644
index 00000000..44dfae11
--- /dev/null
+++ b/webui/src/pages/bug/labels/SetLabel.graphql
@@ -0,0 +1,13 @@
+mutation SetLabel($input: ChangeLabelInput) {
+    changeLabels(input: $input) {
+        results{
+            status,
+            label{
+                name,
+                color{R},
+                color{G},
+                color{B}
+            }
+        }
+    }
+}