planning

node_modules/decap-cms-widget-markdown/src/MarkdownControl/VisualEditor.js

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+// @refresh reset
+import React, { useCallback, useEffect, useMemo, useState } from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { ClassNames, css as coreCss } from '@emotion/react';
+import { lengths, fonts, zIndex } from 'decap-cms-ui-default';
+import styled from '@emotion/styled';
+import { createEditor, Transforms, Editor as SlateEditor } from 'slate';
+import { Editable, ReactEditor, Slate, withReact } from 'slate-react';
+import { withHistory } from 'slate-history';
+import { fromJS } from 'immutable';
+import { isEqual } from 'lodash';
+
+import { editorStyleVars, EditorControlBar } from '../styles';
+import Toolbar from './Toolbar';
+import { Element, Leaf } from './renderers';
+import withLists from './plugins/lists/withLists';
+import withBlocks from './plugins/blocks/withBlocks';
+import withInlines from './plugins/inlines/withInlines';
+import toggleMark from './plugins/inlines/events/toggleMark';
+import toggleLink from './plugins/inlines/events/toggleLink';
+import getActiveLink from './plugins/inlines/selectors/getActiveLink';
+import isMarkActive from './plugins/inlines/locations/isMarkActive';
+import isCursorInBlockType from './plugins/blocks/locations/isCursorInBlockType';
+import { markdownToSlate, slateToMarkdown } from '../serializers';
+import withShortcodes from './plugins/shortcodes/withShortcodes';
+import insertShortcode from './plugins/shortcodes/insertShortcode';
+import defaultEmptyBlock from './plugins/blocks/defaultEmptyBlock';
+
+function visualEditorStyles({ minimal }) {
+  return `
+  position: relative;
+  overflow: auto;
+  font-family: ${fonts.primary};
+  min-height: ${minimal ? 'auto' : lengths.richTextEditorMinHeight};
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+  border-top: 0;
+  margin-top: -${editorStyleVars.stickyDistanceBottom};
+  padding: 0;
+  display: flex;
+  flex-direction: column;
+  z-index: ${zIndex.zIndex100};
+`;
+}
+
+const InsertionPoint = styled.div`
+  flex: 1 1 auto;
+  cursor: text;
+`;
+
+export function mergeMediaConfig(editorComponents, field) {
+  // merge editor media library config to image components
+  if (editorComponents.has('image')) {
+    const imageComponent = editorComponents.get('image');
+    const fields = imageComponent?.fields;
+
+    if (fields) {
+      imageComponent.fields = fields.update(
+        fields.findIndex(f => f.get('widget') === 'image'),
+        f => {
+          // merge `media_library` config
+          if (field.has('media_library')) {
+            f = f.set(
+              'media_library',
+              field.get('media_library').mergeDeep(f.get('media_library')),
+            );
+          }
+          // merge 'media_folder'
+          if (field.has('media_folder') && !f.has('media_folder')) {
+            f = f.set('media_folder', field.get('media_folder'));
+          }
+          // merge 'public_folder'
+          if (field.has('public_folder') && !f.has('public_folder')) {
+            f = f.set('public_folder', field.get('public_folder'));
+          }
+          return f;
+        },
+      );
+    }
+  }
+}
+
+function Editor(props) {
+  const {
+    onAddAsset,
+    getAsset,
+    className,
+    field,
+    isShowModeToggle,
+    t,
+    isDisabled,
+    getEditorComponents,
+    getRemarkPlugins,
+    onChange,
+  } = props;
+
+  const editor = useMemo(
+    () =>
+      withReact(withHistory(withShortcodes(withBlocks(withLists(withInlines(createEditor())))))),
+    [],
+  );
+
+  const emptyValue = [defaultEmptyBlock()];
+  let editorComponents = getEditorComponents();
+  const codeBlockComponent = fromJS(editorComponents.find(({ type }) => type === 'code-block'));
+
+  editorComponents =
+    codeBlockComponent || editorComponents.has('code-block')
+      ? editorComponents
+      : editorComponents.set('code-block', { label: 'Code Block', type: 'code-block' });
+
+  mergeMediaConfig(editorComponents, field);
+
+  const [editorValue, setEditorValue] = useState(
+    props.value
+      ? markdownToSlate(props.value, {
+          voidCodeBlock: !!codeBlockComponent,
+          remarkPlugins: getRemarkPlugins(),
+        })
+      : emptyValue,
+  );
+
+  const renderElement = useCallback(
+    props => (
+      <Element {...props} classNameWrapper={className} codeBlockComponent={codeBlockComponent} />
+    ),
+    [],
+  );
+  const renderLeaf = useCallback(props => <Leaf {...props} />, []);
+
+  useEffect(() => {
+    if (props.pendingFocus) {
+      ReactEditor.focus(editor);
+    }
+  }, []);
+
+  function handleMarkClick(format) {
+    ReactEditor.focus(editor);
+    toggleMark(editor, format);
+  }
+
+  function handleBlockClick(format) {
+    ReactEditor.focus(editor);
+    if (format.endsWith('-list')) {
+      editor.toggleList(format);
+    } else {
+      editor.toggleBlock(format);
+    }
+  }
+
+  function handleLinkClick() {
+    toggleLink(editor, t('editor.editorWidgets.markdown.linkPrompt'));
+    ReactEditor.focus(editor);
+  }
+
+  function handleToggleMode() {
+    props.onMode('raw');
+  }
+
+  function handleInsertShortcode(pluginConfig) {
+    insertShortcode(editor, pluginConfig);
+  }
+
+  function handleKeyDown(event) {
+    for (const handler of editor.keyDownHandlers || []) {
+      if (handler(event, editor) === false) {
+        break;
+      }
+    }
+    ReactEditor.focus(editor);
+  }
+
+  function handleClickBelowDocument() {
+    ReactEditor.focus(editor);
+    Transforms.select(editor, { path: [0, 0], offset: 0 });
+    Transforms.select(editor, SlateEditor.end(editor, []));
+  }
+  const [toolbarKey, setToolbarKey] = useState(0);
+
+  function handleChange(newValue) {
+    if (!isEqual(newValue, editorValue)) {
+      setEditorValue(() => newValue);
+      onChange(
+        slateToMarkdown(newValue, {
+          voidCodeBlock: !!codeBlockComponent,
+          remarkPlugins: getRemarkPlugins(),
+        }),
+      );
+    }
+    setToolbarKey(prev => prev + 1);
+  }
+
+  function hasMark(format) {
+    return isMarkActive(editor, format);
+  }
+
+  function hasInline(format) {
+    if (format == 'link') {
+      return !!getActiveLink(editor);
+    }
+    return false;
+  }
+
+  function hasBlock(format) {
+    return isCursorInBlockType(editor, format);
+  }
+  function hasQuote() {
+    return isCursorInBlockType(editor, 'quote');
+  }
+  function hasListItems(type) {
+    return isCursorInBlockType(editor, type);
+  }
+
+  return (
+    <div
+      css={coreCss`
+        position: relative;
+      `}
+    >
+      <Slate editor={editor} value={editorValue} onChange={handleChange}>
+        <EditorControlBar>
+          {
+            <Toolbar
+              key={toolbarKey}
+              onMarkClick={handleMarkClick}
+              onBlockClick={handleBlockClick}
+              onLinkClick={handleLinkClick}
+              onToggleMode={handleToggleMode}
+              plugins={editorComponents}
+              onSubmit={handleInsertShortcode}
+              onAddAsset={onAddAsset}
+              getAsset={getAsset}
+              buttons={field.get('buttons')}
+              editorComponents={field.get('editor_components')}
+              hasMark={hasMark}
+              hasInline={hasInline}
+              hasBlock={hasBlock}
+              hasQuote={hasQuote}
+              hasListItems={hasListItems}
+              isShowModeToggle={isShowModeToggle}
+              t={t}
+              disabled={isDisabled}
+            />
+          }
+        </EditorControlBar>
+        {
+          <ClassNames>
+            {({ css, cx }) => (
+              <div
+                className={cx(
+                  className,
+                  css`
+                    ${visualEditorStyles({ minimal: field.get('minimal') })}
+                  `,
+                )}
+              >
+                {editorValue.length !== 0 && (
+                  <Editable
+                    className={css`
+                      padding: 16px 20px 0;
+                    `}
+                    renderElement={renderElement}
+                    renderLeaf={renderLeaf}
+                    onKeyDown={handleKeyDown}
+                    autoFocus={false}
+                  />
+                )}
+                <InsertionPoint onClick={handleClickBelowDocument} />
+              </div>
+            )}
+          </ClassNames>
+        }
+      </Slate>
+    </div>
+  );
+}
+
+Editor.propTypes = {
+  onAddAsset: PropTypes.func.isRequired,
+  getAsset: PropTypes.func.isRequired,
+  onChange: PropTypes.func.isRequired,
+  onMode: PropTypes.func.isRequired,
+  className: PropTypes.string.isRequired,
+  value: PropTypes.string,
+  field: ImmutablePropTypes.map.isRequired,
+  getEditorComponents: PropTypes.func.isRequired,
+  getRemarkPlugins: PropTypes.func.isRequired,
+  isShowModeToggle: PropTypes.bool.isRequired,
+  t: PropTypes.func.isRequired,
+};
+
+export default Editor;