added table overlay to table toolbar button. (#763)

Co-authored by: Tilman Vatteroth <tilman.vatteroth@tu-dortmund.de>
Co-authored by: Erik Michelson <github@erik.michelson.eu>
Signed-off-by: Philip Molares <philip.molares@udo.edu>

src/components/common/number-range/number-range.ts

@@ -0,0 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export const createNumberRangeArray = (length: number) : number[] => {
+  return Array.from(Array(length).keys())
+}

src/components/editor/editor-pane/tool-bar/table-picker/custom-table-size-modal.tsx

@@ -0,0 +1,81 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import React, { useCallback, useEffect, useState } from 'react'
+import { Button, Form, ModalFooter } from 'react-bootstrap'
+import { useTranslation } from 'react-i18next'
+import { ForkAwesomeIcon } from '../../../../common/fork-awesome/fork-awesome-icon'
+import { CommonModal } from '../../../../common/modals/common-modal'
+import { TableSize } from './table-picker'
+
+export interface CustomTableSizeModalProps {
+  showModal: boolean
+  onDismiss: () => void
+  onTablePicked: (row: number, cols: number) => void
+}
+
+export const CustomTableSizeModal: React.FC<CustomTableSizeModalProps> = ({ showModal, onDismiss, onTablePicked }) => {
+  const { t } = useTranslation()
+  const [tableSize, setTableSize] = useState<TableSize>({
+    rows: 0,
+    columns: 0
+  })
+
+  useEffect(() => {
+    setTableSize({
+      rows: 0,
+      columns: 0
+    })
+  }, [showModal])
+
+  const onClick = useCallback(() => {
+    onTablePicked(tableSize.rows, tableSize.columns)
+    onDismiss()
+  }, [onDismiss, tableSize, onTablePicked])
+
+  return (
+    <CommonModal
+      show={showModal}
+      onHide={() => onDismiss()}
+      titleI18nKey={'editor.editorToolbar.table.customSize'}
+      closeButton={true}
+      icon={'table'}>
+      <div className={'col-lg-10 d-flex flex-row p-3 align-items-center'}>
+        <Form.Control
+          type={'number'}
+          min={1}
+          placeholder={t('editor.editorToolbar.table.cols')}
+          isInvalid={tableSize.columns <= 0}
+          onChange={(event) => {
+            const value = Number.parseInt(event.currentTarget.value)
+            setTableSize(old => ({
+              rows: old.rows,
+              columns: isNaN(value) ? 0 : value
+            }))
+          }}
+        />
+        <ForkAwesomeIcon icon='times' className='mx-2' fixedWidth={true}/>
+        <Form.Control
+          type={'number'}
+          min={1}
+          placeholder={t('editor.editorToolbar.table.rows')}
+          isInvalid={tableSize.rows <= 0}
+          onChange={(event) => {
+            const value = Number.parseInt(event.currentTarget.value)
+            setTableSize(old => ({
+              rows: isNaN(value) ? 0 : value,
+              columns: old.columns
+            }))
+          }}/>
+      </div>
+      <ModalFooter>
+        <Button onClick={onClick} disabled={tableSize.rows <= 0 || tableSize.columns <= 0}>
+          {t('editor.editorToolbar.table.create')}
+        </Button>
+      </ModalFooter>
+    </CommonModal>
+  )
+}

src/components/editor/editor-pane/tool-bar/table-picker/table-picker-button.tsx

@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import CodeMirror from 'codemirror'
+import React, { Fragment, useState } from 'react'
+import { Button } from 'react-bootstrap'
+import { useTranslation } from 'react-i18next'
+import { ForkAwesomeIcon } from '../../../../common/fork-awesome/fork-awesome-icon'
+import { addTable } from '../utils/toolbarButtonUtils'
+import { TablePicker } from './table-picker'
+
+export interface TablePickerButtonProps {
+  editor: CodeMirror.Editor
+}
+
+export const TablePickerButton: React.FC<TablePickerButtonProps> = ({ editor }) => {
+  const { t } = useTranslation()
+  const [showTablePicker, setShowTablePicker] = useState(false)
+
+  return (
+    <Fragment>
+      <TablePicker
+        show={showTablePicker}
+        onDismiss={() => setShowTablePicker(false)}
+        onTablePicked={(rows, cols) => {
+          setShowTablePicker(false)
+          addTable(editor, rows, cols)
+        }}
+      />
+      <Button variant='light' onClick={() => setShowTablePicker(old => !old)} title={t('editor.editorToolbar.table.title')}>
+        <ForkAwesomeIcon icon="table"/>
+      </Button>
+    </Fragment>
+  )
+}

src/components/editor/editor-pane/tool-bar/table-picker/table-picker.scss

@@ -0,0 +1,44 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+
+
+.table-picker-container {
+  z-index: 1111;
+
+  @import "../../../../../style/variables.light";
+
+  .table-cell {
+    border-top: 1px solid $dark;
+    border-left: 1px solid $dark;
+  }
+
+  .table-container {
+    border-bottom: 1px solid $dark;
+    border-right: 1px solid $dark;
+    display: grid;
+    grid-template-columns: repeat(10, 15px [col-start]);
+    grid-template-rows: repeat(8, 15px [row-start]);
+  }
+
+  body.dark {
+    @import "../../../../../style/variables.dark";
+
+    .table-cell {
+      border-top: 1px solid $dark;
+      border-left: 1px solid $dark;
+    }
+
+    .table-container {
+      border-bottom: 1px solid $dark;
+      border-right: 1px solid $dark;
+      display: grid;
+      grid-template-columns: repeat(10, 15px [col-start]);
+      grid-template-rows: repeat(8, 15px [row-start]);
+    }
+  }
+}
+

src/components/editor/editor-pane/tool-bar/table-picker/table-picker.tsx

@@ -0,0 +1,85 @@
+/*
+ * SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import React, { useCallback, useEffect, useRef, useState } from 'react'
+import { Button } from 'react-bootstrap'
+import { useTranslation } from 'react-i18next'
+import { useClickAway } from 'react-use'
+import { ForkAwesomeIcon } from '../../../../common/fork-awesome/fork-awesome-icon'
+import { createNumberRangeArray } from '../../../../common/number-range/number-range'
+import { CustomTableSizeModal } from './custom-table-size-modal'
+import './table-picker.scss'
+
+export interface TablePickerProps {
+  show: boolean
+  onDismiss: () => void
+  onTablePicked: (row: number, cols: number) => void
+}
+
+export type TableSize = {
+  rows: number,
+  columns: number
+}
+
+export const TablePicker: React.FC<TablePickerProps> = ({ show, onDismiss, onTablePicked }) => {
+  const { t } = useTranslation()
+  const containerRef = useRef<HTMLDivElement>(null)
+  const [tableSize, setTableSize] = useState<TableSize>()
+  const [showDialog, setShowDialog] = useState(false)
+
+  useClickAway(containerRef, () => {
+    onDismiss()
+  })
+
+  useEffect(() => {
+    setTableSize(undefined)
+  }, [show])
+
+  const onClick = useCallback(() => {
+    if (tableSize) {
+      onTablePicked(tableSize.rows, tableSize.columns)
+    }
+  }, [onTablePicked, tableSize])
+
+  return (
+    <div className={`position-absolute table-picker-container p-2 ${!show ? 'd-none' : ''} bg-light`} ref={containerRef} role="grid">
+      <p className={'lead'}>
+        { tableSize
+          ? t('editor.editorToolbar.table.size', { cols: tableSize?.columns, rows: tableSize.rows })
+          : t('editor.editorToolbar.table.title')
+        }
+      </p>
+      <div className={'table-container'}>
+        {createNumberRangeArray(8).map((row: number) => (
+          createNumberRangeArray(10).map((col: number) => (
+            <div
+              className={`table-cell ${tableSize && row < tableSize.rows && col < tableSize.columns ? 'bg-primary' : ''}`}
+              onMouseEnter={() => {
+                setTableSize({
+                  rows: row + 1,
+                  columns: col + 1
+                })
+              }}
+              title={t('editor.editorToolbar.table.size', { cols: col + 1, rows: row + 1 })}
+              onClick={onClick}
+            />
+          )
+          )
+        ))}
+      </div>
+      <div className="d-flex justify-content-center mt-2">
+        <Button className={'text-center'} onClick={() => setShowDialog(true)}>
+          <ForkAwesomeIcon icon="table"/>&nbsp;{t('editor.editorToolbar.table.customSize')}
+        </Button>
+        <CustomTableSizeModal
+          showModal={showDialog}
+          onDismiss={() => setShowDialog(false)}
+          onTablePicked={onTablePicked}
+        />
+      </div>
+    </div>
+  )
+}

src/components/editor/editor-pane/tool-bar/tool-bar.tsx

@@ -11,6 +11,7 @@ import { useTranslation } from 'react-i18next'
 import { ForkAwesomeIcon } from '../../../common/fork-awesome/fork-awesome-icon'
 import { EditorPreferences } from './editor-preferences/editor-preferences'
 import { EmojiPickerButton } from './emoji-picker/emoji-picker-button'
+import { TablePickerButton } from './table-picker/table-picker-button'
 import './tool-bar.scss'
 import {
   addCodeFences,
@@ -23,7 +24,6 @@ import {
   addList,
   addOrderedList,
   addQuotes,
-  addTable,
   addTaskList,
   makeSelectionBold,
   makeSelectionItalic,
@@ -102,9 +102,7 @@ export const ToolBar: React.FC<ToolBarProps> = ({ editor }) => {
         </Button>
       </ButtonGroup>
       <ButtonGroup className={'mx-1 flex-wrap'}>
-        <Button variant='light' onClick={() => addTable(editor)} title={t('editor.editorToolbar.table')}>
-          <ForkAwesomeIcon icon="table"/>
-        </Button>
+        <TablePickerButton editor={editor}/>
         <Button variant='light' onClick={() => addLine(editor)} title={t('editor.editorToolbar.line')}>
           <ForkAwesomeIcon icon="minus"/>
         </Button>

src/components/editor/editor-pane/tool-bar/utils/toolbarButtonUtils.ts

@@ -6,6 +6,7 @@
 
 import { Editor } from 'codemirror'
 import { EmojiClickEventDetail } from 'emoji-picker-element/shared'
+import { createNumberRangeArray } from '../../../../common/number-range/number-range'
 import { getEmojiShortCode } from './emojiUtils'
 
 export const makeSelectionBold = (editor: Editor): void => wrapTextWith(editor, '**')
@@ -29,7 +30,15 @@ export const addImage = (editor: Editor): void => addLink(editor, '!')
 export const addLine = (editor: Editor): void => changeLines(editor, line => `${line}\n----`)
 export const addCollapsableBlock = (editor: Editor): void => changeLines(editor, line => `${line}\n<details>\n  <summary>Toggle label</summary>\n  Toggled content\n</details>`)
 export const addComment = (editor: Editor): void => changeLines(editor, line => `${line}\n> []`)
-export const addTable = (editor: Editor): void => changeLines(editor, line => `${line}\n| # 1  | # 2  | # 3  |\n| ---- | ---- | ---- |\n| Text | Text | Text |`)
+export const addTable = (editor: Editor, rows: number, columns: number): void => {
+  const rowArray = createNumberRangeArray(rows)
+  const colArray = createNumberRangeArray(columns).map(col => col + 1)
+  const head = '|  # ' + colArray.join(' |  # ') + ' |'
+  const divider = '| ' + colArray.map(() => '----').join(' | ') + ' |'
+  const body = rowArray.map(() => '| ' + colArray.map(() => 'Text').join(' | ') + ' |').join('\n')
+  const table = `${head}\n${divider}\n${body}`
+  changeLines(editor, line => `${line}\n${table}`)
+}
 
 export const addEmoji = (emoji: EmojiClickEventDetail, editor: Editor): void => {
   const shortCode = getEmojiShortCode(emoji)