react-icons/fa#FaRegPlusSquare TypeScript Examples

GridMode = ({
  getMostConstrainedEntry,
  reRunAutofill,
  state,
  dispatch,
  setClueMode,
  ...props
}: GridModeProps) => {
  const [muted, setMuted] = usePersistedBoolean('muted', false);
  const [toggleKeyboard, setToggleKeyboard] = usePersistedBoolean(
    'keyboard',
    false
  );
  const { showSnackbar } = useSnackbar();

  const gridRef = useRef<HTMLDivElement | null>(null);

  const focusGrid = useCallback(() => {
    if (gridRef.current) {
      gridRef.current.focus();
    }
  }, []);

  const physicalKeyboardHandler = useCallback(
    (e: KeyboardEvent) => {
      const mkey = fromKeyboardEvent(e);
      if (isSome(mkey)) {
        e.preventDefault();
        if (mkey.value.k === KeyK.Enter && !state.isEnteringRebus) {
          reRunAutofill();
          return;
        }
        if (mkey.value.k === KeyK.Exclamation) {
          const entry = getMostConstrainedEntry();
          if (entry !== null) {
            const ca: ClickedEntryAction = {
              type: 'CLICKEDENTRY',
              entryIndex: entry,
            };
            dispatch(ca);
          }
          return;
        }
        if (mkey.value.k === KeyK.Octothorp) {
          const a: ToggleHiddenAction = { type: 'TOGGLEHIDDEN' };
          dispatch(a);
        }

        const kpa: KeypressAction = { type: 'KEYPRESS', key: mkey.value };
        dispatch(kpa);
      }
    },
    [dispatch, reRunAutofill, state.isEnteringRebus, getMostConstrainedEntry]
  );
  useEventListener(
    'keydown',
    physicalKeyboardHandler,
    gridRef.current || undefined
  );

  const pasteHandler = useCallback(
    (e: ClipboardEvent) => {
      const tagName = (e.target as HTMLElement)?.tagName?.toLowerCase();
      if (tagName === 'textarea' || tagName === 'input') {
        return;
      }
      const pa: PasteAction = {
        type: 'PASTE',
        content: e.clipboardData?.getData('Text') || '',
      };
      dispatch(pa);
      e.preventDefault();
    },
    [dispatch]
  );
  useEventListener('paste', pasteHandler);

  const fillLists = useMemo(() => {
    let left = <></>;
    let right = <></>;
    const [entry, cross] = entryAndCrossAtPosition(state.grid, state.active);
    let crossMatches = cross && potentialFill(cross, state.grid);
    let entryMatches = entry && potentialFill(entry, state.grid);

    if (
      crossMatches !== null &&
      entryMatches !== null &&
      entry !== null &&
      cross !== null
    ) {
      /* If we have both entry + cross we now filter for only matches that'd work for both. */
      const entryActiveIndex = activeIndex(state.grid, state.active, entry);
      const crossActiveIndex = activeIndex(state.grid, state.active, cross);
      const entryValidLetters = lettersAtIndex(entryMatches, entryActiveIndex);
      const crossValidLetters = lettersAtIndex(crossMatches, crossActiveIndex);
      const validLetters = (
        entryValidLetters.match(
          new RegExp('[' + crossValidLetters + ']', 'g')
        ) || []
      ).join('');
      entryMatches = entryMatches.filter(([word]) => {
        const l = word[entryActiveIndex];
        return l && validLetters.indexOf(l) !== -1;
      });
      crossMatches = crossMatches.filter(([word]) => {
        const l = word[crossActiveIndex];
        return l && validLetters.indexOf(l) !== -1;
      });
    }

    if (cross && crossMatches !== null) {
      if (cross.direction === Direction.Across) {
        left = (
          <PotentialFillList
            selected={false}
            gridRef={gridRef}
            header="Across"
            values={crossMatches}
            entryIndex={cross.index}
            dispatch={dispatch}
          />
        );
      } else {
        right = (
          <PotentialFillList
            selected={false}
            gridRef={gridRef}
            header="Down"
            values={crossMatches}
            entryIndex={cross.index}
            dispatch={dispatch}
          />
        );
      }
    }
    if (entry && entryMatches !== null) {
      if (entry.direction === Direction.Across) {
        left = (
          <PotentialFillList
            selected={true}
            gridRef={gridRef}
            header="Across"
            values={entryMatches}
            entryIndex={entry.index}
            dispatch={dispatch}
          />
        );
      } else {
        right = (
          <PotentialFillList
            selected={true}
            gridRef={gridRef}
            header="Down"
            values={entryMatches}
            entryIndex={entry.index}
            dispatch={dispatch}
          />
        );
      }
    }
    return { left, right };
  }, [state.grid, state.active, dispatch]);

  const { autofillEnabled, setAutofillEnabled } = props;
  const toggleAutofillEnabled = useCallback(() => {
    if (autofillEnabled) {
      showSnackbar('Autofill Disabled');
    }
    setAutofillEnabled(!autofillEnabled);
  }, [autofillEnabled, setAutofillEnabled, showSnackbar]);

  const stats = useMemo(() => {
    let totalLength = 0;
    const lengthHistogram: Array<number> = new Array(
      Math.max(state.grid.width, state.grid.height) - 1
    ).fill(0);
    const lengthHistogramNames = lengthHistogram.map((_, i) =>
      (i + 2).toString()
    );

    state.grid.entries.forEach((e) => {
      totalLength += e.cells.length;
      lengthHistogram[e.cells.length - 2] += 1;
    });
    const numEntries = state.grid.entries.length;
    const averageLength = totalLength / numEntries;
    const lettersHistogram: Array<number> = new Array(26).fill(0);
    const lettersHistogramNames = lettersHistogram.map((_, i) =>
      String.fromCharCode(i + 65)
    );
    let numBlocks = 0;
    const numTotal = state.grid.width * state.grid.height;
    state.grid.cells.forEach((s) => {
      if (s === '.') {
        numBlocks += 1;
      } else {
        const index = lettersHistogramNames.indexOf(s);
        if (index !== -1) {
          lettersHistogram[index] += 1;
        }
      }
    });
    return {
      numBlocks,
      numTotal,
      lengthHistogram,
      lengthHistogramNames,
      numEntries,
      averageLength,
      lettersHistogram,
      lettersHistogramNames,
    };
  }, [
    state.grid.entries,
    state.grid.height,
    state.grid.width,
    state.grid.cells,
  ]);

  const keyboardHandler = useCallback(
    (key: string) => {
      const mkey = fromKeyString(key);
      if (isSome(mkey)) {
        const kpa: KeypressAction = { type: 'KEYPRESS', key: mkey.value };
        dispatch(kpa);
      }
    },
    [dispatch]
  );

  const topBarChildren = useMemo(() => {
    let autofillIcon = <SpinnerDisabled />;
    let autofillReverseIcon = <SpinnerWorking />;
    let autofillReverseText = 'Enable Autofill';
    let autofillText = 'Autofill disabled';
    if (props.autofillEnabled) {
      autofillReverseIcon = <SpinnerDisabled />;
      autofillReverseText = 'Disable Autofill';
      if (props.autofillInProgress) {
        autofillIcon = <SpinnerWorking />;
        autofillText = 'Autofill in progress';
      } else if (props.autofilledGrid.length) {
        autofillIcon = <SpinnerFinished />;
        autofillText = 'Autofill complete';
      } else {
        autofillIcon = <SpinnerFailed />;
        autofillText = "Couldn't autofill this grid";
      }
    }
    return (
      <>
        <TopBarDropDown
          onClose={focusGrid}
          icon={autofillIcon}
          text="Autofill"
          hoverText={autofillText}
        >
          {() => (
            <>
              <TopBarDropDownLink
                icon={autofillReverseIcon}
                text={autofillReverseText}
                onClick={toggleAutofillEnabled}
              />
              <TopBarDropDownLink
                icon={<FaSignInAlt />}
                text="Jump to Most Constrained"
                shortcutHint={<ExclamationKey />}
                onClick={() => {
                  const entry = getMostConstrainedEntry();
                  if (entry !== null) {
                    const ca: ClickedEntryAction = {
                      type: 'CLICKEDENTRY',
                      entryIndex: entry,
                    };
                    dispatch(ca);
                  }
                }}
              />
              <TopBarDropDownLink
                icon={<MdRefresh />}
                text="Rerun Autofiller"
                shortcutHint={<EnterKey />}
                onClick={() => {
                  reRunAutofill();
                }}
              />
            </>
          )}
        </TopBarDropDown>
        <TopBarLink
          icon={<FaListOl />}
          text="Clues"
          onClick={() => setClueMode(true)}
        />
        <TopBarLink
          icon={<FaRegNewspaper />}
          text="Publish"
          onClick={() => {
            const a: PublishAction = {
              type: 'PUBLISH',
              publishTimestamp: TimestampClass.now(),
            };
            dispatch(a);
          }}
        />
        <TopBarDropDown onClose={focusGrid} icon={<FaEllipsisH />} text="More">
          {(closeDropdown) => (
            <>
              <NestedDropDown
                onClose={focusGrid}
                closeParent={closeDropdown}
                icon={<FaRegPlusSquare />}
                text="New Puzzle"
              >
                {() => <NewPuzzleForm dispatch={dispatch} />}
              </NestedDropDown>
              <NestedDropDown
                onClose={focusGrid}
                closeParent={closeDropdown}
                icon={<FaFileImport />}
                text="Import .puz File"
              >
                {() => <ImportPuzForm dispatch={dispatch} />}
              </NestedDropDown>
              <TopBarDropDownLink
                icon={<FaRegFile />}
                text="Export .puz File"
                onClick={() => {
                  const a: SetShowDownloadLink = {
                    type: 'SETSHOWDOWNLOAD',
                    value: true,
                  };
                  dispatch(a);
                }}
              />
              <NestedDropDown
                onClose={focusGrid}
                closeParent={closeDropdown}
                icon={<IoMdStats />}
                text="Stats"
              >
                {() => (
                  <>
                    <h2>Grid</h2>
                    <div>
                      {state.gridIsComplete ? (
                        <FaRegCheckCircle />
                      ) : (
                        <FaRegCircle />
                      )}{' '}
                      All cells should be filled
                    </div>
                    <div>
                      {state.hasNoShortWords ? (
                        <FaRegCheckCircle />
                      ) : (
                        <FaRegCircle />
                      )}{' '}
                      All words should be at least three letters
                    </div>
                    <div>
                      {state.repeats.size > 0 ? (
                        <>
                          <FaRegCircle /> (
                          {Array.from(state.repeats).sort().join(', ')})
                        </>
                      ) : (
                        <FaRegCheckCircle />
                      )}{' '}
                      No words should be repeated
                    </div>
                    <h2 css={{ marginTop: '1.5em' }}>Fill</h2>
                    <div>Number of words: {stats.numEntries}</div>
                    <div>
                      Mean word length: {stats.averageLength.toPrecision(3)}
                    </div>
                    <div>
                      Number of blocks: {stats.numBlocks} (
                      {((100 * stats.numBlocks) / stats.numTotal).toFixed(1)}%)
                    </div>
                    <div
                      css={{
                        marginTop: '1em',
                        textDecoration: 'underline',
                        textAlign: 'center',
                      }}
                    >
                      Word Lengths
                    </div>
                    <Histogram
                      data={stats.lengthHistogram}
                      names={stats.lengthHistogramNames}
                    />
                    <div
                      css={{
                        marginTop: '1em',
                        textDecoration: 'underline',
                        textAlign: 'center',
                      }}
                    >
                      Letter Counts
                    </div>
                    <Histogram
                      data={stats.lettersHistogram}
                      names={stats.lettersHistogramNames}
                    />
                  </>
                )}
              </NestedDropDown>
              <NestedDropDown
                onClose={focusGrid}
                closeParent={closeDropdown}
                icon={<SymmetryIcon type={state.symmetry} />}
                text="Change Symmetry"
              >
                {() => (
                  <>
                    <TopBarDropDownLink
                      icon={<SymmetryRotational />}
                      text="Use Rotational Symmetry"
                      onClick={() => {
                        const a: SymmetryAction = {
                          type: 'CHANGESYMMETRY',
                          symmetry: Symmetry.Rotational,
                        };
                        dispatch(a);
                      }}
                    />
                    <TopBarDropDownLink
                      icon={<SymmetryHorizontal />}
                      text="Use Horizontal Symmetry"
                      onClick={() => {
                        const a: SymmetryAction = {
                          type: 'CHANGESYMMETRY',
                          symmetry: Symmetry.Horizontal,
                        };
                        dispatch(a);
                      }}
                    />
                    <TopBarDropDownLink
                      icon={<SymmetryVertical />}
                      text="Use Vertical Symmetry"
                      onClick={() => {
                        const a: SymmetryAction = {
                          type: 'CHANGESYMMETRY',
                          symmetry: Symmetry.Vertical,
                        };
                        dispatch(a);
                      }}
                    />
                    <TopBarDropDownLink
                      icon={<SymmetryNone />}
                      text="Use No Symmetry"
                      onClick={() => {
                        const a: SymmetryAction = {
                          type: 'CHANGESYMMETRY',
                          symmetry: Symmetry.None,
                        };
                        dispatch(a);
                      }}
                    />
                    {state.grid.width === state.grid.height ? (
                      <>
                        <TopBarDropDownLink
                          icon={<SymmetryIcon type={Symmetry.DiagonalNESW} />}
                          text="Use NE/SW Diagonal Symmetry"
                          onClick={() => {
                            const a: SymmetryAction = {
                              type: 'CHANGESYMMETRY',
                              symmetry: Symmetry.DiagonalNESW,
                            };
                            dispatch(a);
                          }}
                        />
                        <TopBarDropDownLink
                          icon={<SymmetryIcon type={Symmetry.DiagonalNWSE} />}
                          text="Use NW/SE Diagonal Symmetry"
                          onClick={() => {
                            const a: SymmetryAction = {
                              type: 'CHANGESYMMETRY',
                              symmetry: Symmetry.DiagonalNWSE,
                            };
                            dispatch(a);
                          }}
                        />
                      </>
                    ) : (
                      ''
                    )}
                  </>
                )}
              </NestedDropDown>
              <TopBarDropDownLink
                icon={<FaSquare />}
                text="Toggle Block"
                shortcutHint={<PeriodKey />}
                onClick={() => {
                  const a: KeypressAction = {
                    type: 'KEYPRESS',
                    key: { k: KeyK.Dot },
                  };
                  dispatch(a);
                }}
              />
              <TopBarDropDownLink
                icon={<CgSidebarRight />}
                text="Toggle Bar"
                shortcutHint={<CommaKey />}
                onClick={() => {
                  const a: KeypressAction = {
                    type: 'KEYPRESS',
                    key: { k: KeyK.Comma },
                  };
                  dispatch(a);
                }}
              />
              <TopBarDropDownLink
                icon={<FaEyeSlash />}
                text="Toggle Cell Visibility"
                shortcutHint={<KeyIcon text="#" />}
                onClick={() => {
                  const a: ToggleHiddenAction = {
                    type: 'TOGGLEHIDDEN',
                  };
                  dispatch(a);
                }}
              />
              <TopBarDropDownLink
                icon={<Rebus />}
                text="Enter Rebus"
                shortcutHint={<EscapeKey />}
                onClick={() => {
                  const a: KeypressAction = {
                    type: 'KEYPRESS',
                    key: { k: KeyK.Escape },
                  };
                  dispatch(a);
                }}
              />
              <TopBarDropDownLink
                icon={
                  state.grid.highlight === 'circle' ? (
                    <FaRegCircle />
                  ) : (
                    <FaFillDrip />
                  )
                }
                text="Toggle Square Highlight"
                shortcutHint={<BacktickKey />}
                onClick={() => {
                  const a: KeypressAction = {
                    type: 'KEYPRESS',
                    key: { k: KeyK.Backtick },
                  };
                  dispatch(a);
                }}
              />
              <TopBarDropDownLink
                icon={
                  state.grid.highlight === 'circle' ? (
                    <FaFillDrip />
                  ) : (
                    <FaRegCircle />
                  )
                }
                text={
                  state.grid.highlight === 'circle'
                    ? 'Use Shade for Highlights'
                    : 'Use Circle for Highlights'
                }
                onClick={() => {
                  const a: SetHighlightAction = {
                    type: 'SETHIGHLIGHT',
                    highlight:
                      state.grid.highlight === 'circle' ? 'shade' : 'circle',
                  };
                  dispatch(a);
                }}
              />
              {muted ? (
                <TopBarDropDownLink
                  icon={<FaVolumeUp />}
                  text="Unmute"
                  onClick={() => setMuted(false)}
                />
              ) : (
                <TopBarDropDownLink
                  icon={<FaVolumeMute />}
                  text="Mute"
                  onClick={() => setMuted(true)}
                />
              )}
              <TopBarDropDownLink
                icon={<FaKeyboard />}
                text="Toggle Keyboard"
                onClick={() => setToggleKeyboard(!toggleKeyboard)}
              />
              {props.isAdmin ? (
                <>
                  <TopBarDropDownLinkA
                    href="/admin"
                    icon={<FaUserLock />}
                    text="Admin"
                  />
                </>
              ) : (
                ''
              )}
              <TopBarDropDownLinkA
                href="/dashboard"
                icon={<FaHammer />}
                text="Constructor Dashboard"
              />
              <TopBarDropDownLinkA
                href="/account"
                icon={<FaUser />}
                text="Account"
              />
            </>
          )}
        </TopBarDropDown>
      </>
    );
  }, [
    focusGrid,
    getMostConstrainedEntry,
    props.autofillEnabled,
    props.autofillInProgress,
    props.autofilledGrid.length,
    stats,
    props.isAdmin,
    setClueMode,
    setMuted,
    state.grid.highlight,
    state.grid.width,
    state.grid.height,
    state.gridIsComplete,
    state.hasNoShortWords,
    state.repeats,
    state.symmetry,
    toggleAutofillEnabled,
    reRunAutofill,
    dispatch,
    muted,
    toggleKeyboard,
    setToggleKeyboard,
  ]);

  return (
    <>
      <Global styles={FULLSCREEN_CSS} />
      <div
        css={{
          display: 'flex',
          flexDirection: 'column',
          height: '100%',
        }}
      >
        <div css={{ flex: 'none' }}>
          <TopBar>{topBarChildren}</TopBar>
        </div>
        {state.showDownloadLink ? (
          <PuzDownloadOverlay
            state={state}
            cancel={() => {
              const a: SetShowDownloadLink = {
                type: 'SETSHOWDOWNLOAD',
                value: false,
              };
              dispatch(a);
            }}
          />
        ) : (
          ''
        )}
        {state.toPublish ? (
          <PublishOverlay
            id={state.id}
            toPublish={state.toPublish}
            warnings={state.publishWarnings}
            user={props.user}
            cancelPublish={() => dispatch({ type: 'CANCELPUBLISH' })}
          />
        ) : (
          ''
        )}
        {state.publishErrors.length ? (
          <Overlay
            closeCallback={() => dispatch({ type: 'CLEARPUBLISHERRORS' })}
          >
            <>
              <div>
                Please fix the following errors and try publishing again:
              </div>
              <ul>
                {state.publishErrors.map((s, i) => (
                  <li key={i}>{s}</li>
                ))}
              </ul>
              {state.publishWarnings.length ? (
                <>
                  <div>Warnings:</div>
                  <ul>
                    {state.publishWarnings.map((s, i) => (
                      <li key={i}>{s}</li>
                    ))}
                  </ul>
                </>
              ) : (
                ''
              )}
            </>
          </Overlay>
        ) : (
          ''
        )}
        <div
          css={{ flex: '1 1 auto', overflow: 'scroll', position: 'relative' }}
        >
          <SquareAndCols
            leftIsActive={state.active.dir === Direction.Across}
            ref={gridRef}
            aspectRatio={state.grid.width / state.grid.height}
            square={(width: number, _height: number) => {
              return (
                <GridView
                  isEnteringRebus={state.isEnteringRebus}
                  rebusValue={state.rebusValue}
                  squareWidth={width}
                  grid={state.grid}
                  active={state.active}
                  dispatch={dispatch}
                  allowBlockEditing={true}
                  autofill={props.autofillEnabled ? props.autofilledGrid : []}
                />
              );
            }}
            left={fillLists.left}
            right={fillLists.right}
            dispatch={dispatch}
          />
        </div>
        <div css={{ flex: 'none', width: '100%' }}>
          <Keyboard
            toggleKeyboard={toggleKeyboard}
            keyboardHandler={keyboardHandler}
            muted={muted}
            showExtraKeyLayout={state.showExtraKeyLayout}
            includeBlockKey={true}
          />
        </div>
      </div>
    </>
  );
}