ngx-editor
Version:
Rich Text Editor for angular using ProseMirror
115 lines • 18.2 kB
JavaScript
import { keymap } from 'prosemirror-keymap';
import { toggleMark, baseKeymap, chainCommands, exitCode } from 'prosemirror-commands';
import { splitListItem, liftListItem, sinkListItem } from 'prosemirror-schema-list';
import { history, undo, redo } from 'prosemirror-history';
import { inputRules, wrappingInputRule, textblockTypeInputRule, smartQuotes, emDash, ellipsis } from 'prosemirror-inputrules';
import { markInputRule } from 'ngx-editor/helpers';
const isMacOs = typeof navigator !== 'undefined' ? /Mac/.test(navigator.platform) : false;
// Input rules ref: https://github.com/ProseMirror/prosemirror-example-setup/
// : (NodeType) → InputRule
// Given a blockquote node type, returns an input rule that turns `"> "`
// at the start of a textblock into a blockquote.
const blockQuoteRule = (nodeType) => {
return wrappingInputRule(/^\s*>\s$/, nodeType);
};
// : (NodeType) → InputRule
// Given a list node type, returns an input rule that turns a number
// followed by a dot at the start of a textblock into an ordered list.
const orderedListRule = (nodeType) => {
return wrappingInputRule(/^(\d+)\.\s$/, nodeType, match => ({ order: +match[1] }), (match, node) => node.childCount + node.attrs['order'] === +match[1]);
};
// : (NodeType) → InputRule
// Given a list node type, returns an input rule that turns a bullet
// (dash, plush, or asterisk) at the start of a textblock into a
// bullet list.
const bulletListRule = (nodeType) => {
return wrappingInputRule(/^\s*([-+*])\s$/, nodeType);
};
// : (NodeType) → InputRule
// Given a code block node type, returns an input rule that turns a
// textblock starting with three backticks into a code block.
const codeBlockRule = (nodeType) => {
return textblockTypeInputRule(/^```$/, nodeType);
};
// : (NodeType, number) → InputRule
// Given a node type and a maximum level, creates an input rule that
// turns up to that number of `#` characters followed by a space at
// the start of a textblock into a heading whose level corresponds to
// the number of `#` signs.
const headingRule = (nodeType, maxLevel) => {
return textblockTypeInputRule(new RegExp('^(#{1,' + maxLevel + '})\\s$'), nodeType, (match) => ({ level: match[1].length }));
};
// : (MarkType) → InputRule
// Wraps matching text with bold mark
const boldRule = (markType) => {
return markInputRule(/(?:^|\s)((?:\*\*|__)((?:[^*_]+))(?:\*\*|__))$/, markType);
};
// : (MarkType) → InputRule
// Wraps matching text with em mark
const emRule = (markType) => {
return markInputRule(/(?:^|\s)((?:\*|_)((?:[^*_]+))(?:\*|_))$/, markType);
};
// : (Schema) → Plugin
// A set of input rules for creating the basic block quotes, lists,
// code blocks, and heading.
const buildInputRules = (schema) => {
const rules = smartQuotes.concat(ellipsis, emDash);
rules.push(boldRule(schema.marks['strong']));
rules.push(emRule(schema.marks['em']));
rules.push(blockQuoteRule(schema.nodes['blockquote']));
rules.push(orderedListRule(schema.nodes['ordered_list']));
rules.push(bulletListRule(schema.nodes['bullet_list']));
rules.push(codeBlockRule(schema.nodes['code_block']));
rules.push(headingRule(schema.nodes['heading'], 6));
return inputRules({ rules });
};
const getKeyboardShortcuts = (schema, options) => {
const historyKeyMap = {};
historyKeyMap['Mod-z'] = undo;
if (isMacOs) {
historyKeyMap['Shift-Mod-z'] = redo;
}
else {
historyKeyMap['Mod-y'] = redo;
}
const plugins = [
keymap({
'Mod-b': toggleMark(schema.marks['strong']),
'Mod-i': toggleMark(schema.marks['em']),
'Mod-u': toggleMark(schema.marks['u']),
'Mod-`': toggleMark(schema.marks['code']),
}),
keymap({
Enter: splitListItem(schema.nodes['list_item']),
'Shift-Enter': chainCommands(exitCode, (state, dispatch) => {
const tr = state.tr;
const br = schema.nodes['hard_break'];
dispatch(tr.replaceSelectionWith(br.create()).scrollIntoView());
return true;
}),
'Mod-[': liftListItem(schema.nodes['list_item']),
'Mod-]': sinkListItem(schema.nodes['list_item']),
Tab: sinkListItem(schema.nodes['list_item'])
}),
keymap(baseKeymap)
];
if (options.history) {
plugins.push(keymap(historyKeyMap));
}
return plugins;
};
const getDefaultPlugins = (schema, options) => {
const plugins = [];
if (options.keyboardShortcuts) {
plugins.push(...getKeyboardShortcuts(schema, { history: options.history }));
}
if (options.history) {
plugins.push(history());
}
if (options.inputRules) {
plugins.push(buildInputRules(schema));
}
return plugins;
};
export default getDefaultPlugins;
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{ MarkType, NodeType, Schema } from 'prosemirror-model';\nimport { Plugin } from 'prosemirror-state';\nimport { keymap } from 'prosemirror-keymap';\nimport { toggleMark, baseKeymap, chainCommands, exitCode } from 'prosemirror-commands';\nimport { splitListItem, liftListItem, sinkListItem } from 'prosemirror-schema-list';\nimport { history, undo, redo } from 'prosemirror-history';\nimport {\n  inputRules, wrappingInputRule, textblockTypeInputRule,\n  smartQuotes, emDash, ellipsis, InputRule\n} from 'prosemirror-inputrules';\n\nimport { markInputRule } from 'ngx-editor/helpers';\n\ninterface Options {\n  history: boolean;\n  keyboardShortcuts: boolean;\n  inputRules: boolean;\n}\n\ninterface ShortcutOptions {\n  history: boolean;\n}\n\nconst isMacOs = typeof navigator !== 'undefined' ? /Mac/.test(navigator.platform) : false\n\n// Input rules ref: https://github.com/ProseMirror/prosemirror-example-setup/\n\n// : (NodeType) → InputRule\n// Given a blockquote node type, returns an input rule that turns `\"> \"`\n// at the start of a textblock into a blockquote.\nconst blockQuoteRule = (nodeType: NodeType): InputRule => {\n  return wrappingInputRule(/^\\s*>\\s$/, nodeType);\n};\n\n// : (NodeType) → InputRule\n// Given a list node type, returns an input rule that turns a number\n// followed by a dot at the start of a textblock into an ordered list.\nconst orderedListRule = (nodeType: NodeType): InputRule => {\n  return wrappingInputRule(\n    /^(\\d+)\\.\\s$/,\n    nodeType,\n    match => ({ order: +match[1] }),\n    (match, node) => node.childCount + node.attrs['order'] === +match[1]\n  );\n};\n\n// : (NodeType) → InputRule\n// Given a list node type, returns an input rule that turns a bullet\n// (dash, plush, or asterisk) at the start of a textblock into a\n// bullet list.\nconst bulletListRule = (nodeType: NodeType): InputRule => {\n  return wrappingInputRule(/^\\s*([-+*])\\s$/, nodeType);\n};\n\n// : (NodeType) → InputRule\n// Given a code block node type, returns an input rule that turns a\n// textblock starting with three backticks into a code block.\nconst codeBlockRule = (nodeType: NodeType): InputRule => {\n  return textblockTypeInputRule(/^```$/, nodeType);\n};\n\n// : (NodeType, number) → InputRule\n// Given a node type and a maximum level, creates an input rule that\n// turns up to that number of `#` characters followed by a space at\n// the start of a textblock into a heading whose level corresponds to\n// the number of `#` signs.\nconst headingRule = (nodeType: NodeType, maxLevel: number): InputRule => {\n  return textblockTypeInputRule(\n    new RegExp('^(#{1,' + maxLevel + '})\\\\s$'),\n    nodeType,\n    (match) => ({ level: match[1].length })\n  );\n};\n\n// : (MarkType) → InputRule\n// Wraps matching text with bold mark\nconst boldRule = (markType: MarkType): InputRule => {\n  return markInputRule(/(?:^|\\s)((?:\\*\\*|__)((?:[^*_]+))(?:\\*\\*|__))$/, markType)\n}\n\n// : (MarkType) → InputRule\n// Wraps matching text with em mark\nconst emRule = (markType: MarkType): InputRule => {\n  return markInputRule(/(?:^|\\s)((?:\\*|_)((?:[^*_]+))(?:\\*|_))$/, markType)\n}\n\n// : (Schema) → Plugin\n// A set of input rules for creating the basic block quotes, lists,\n// code blocks, and heading.\nconst buildInputRules = (schema: Schema): Plugin => {\n  const rules = smartQuotes.concat(ellipsis, emDash);\n\n  rules.push(boldRule(schema.marks['strong']));\n  rules.push(emRule(schema.marks['em']));\n  rules.push(blockQuoteRule(schema.nodes['blockquote']));\n  rules.push(orderedListRule(schema.nodes['ordered_list']));\n  rules.push(bulletListRule(schema.nodes['bullet_list']));\n  rules.push(codeBlockRule(schema.nodes['code_block']));\n  rules.push(headingRule(schema.nodes['heading'], 6));\n\n  return inputRules({ rules });\n};\n\nconst getKeyboardShortcuts = (schema: Schema, options: ShortcutOptions) => {\n  const historyKeyMap: Record<string, any> = {};\n\n  historyKeyMap['Mod-z'] = undo;\n  if (isMacOs) {\n    historyKeyMap['Shift-Mod-z'] = redo;\n  } else {\n    historyKeyMap['Mod-y'] = redo;\n  }\n\n  const plugins = [\n    keymap({\n      'Mod-b': toggleMark(schema.marks['strong']),\n      'Mod-i': toggleMark(schema.marks['em']),\n      'Mod-u': toggleMark(schema.marks['u']),\n      'Mod-`': toggleMark(schema.marks['code']),\n    }),\n    keymap({\n      Enter: splitListItem(schema.nodes['list_item']),\n      'Shift-Enter': chainCommands(exitCode, (state, dispatch) => {\n        const tr = state.tr;\n        const br = schema.nodes['hard_break'];\n        dispatch(tr.replaceSelectionWith(br.create()).scrollIntoView());\n        return true;\n      }),\n      'Mod-[': liftListItem(schema.nodes['list_item']),\n      'Mod-]': sinkListItem(schema.nodes['list_item']),\n      Tab: sinkListItem(schema.nodes['list_item'])\n    }),\n    keymap(baseKeymap)\n  ];\n\n  if (options.history) {\n    plugins.push(keymap(historyKeyMap));\n  }\n\n  return plugins;\n};\n\nconst getDefaultPlugins = (schema: Schema, options: Options): Plugin[] => {\n  const plugins: Plugin[] = [];\n\n  if (options.keyboardShortcuts) {\n    plugins.push(...getKeyboardShortcuts(schema, { history: options.history }));\n  }\n\n  if (options.history) {\n    plugins.push(history());\n  }\n\n  if (options.inputRules) {\n    plugins.push(buildInputRules(schema));\n  }\n\n  return plugins;\n};\n\nexport default getDefaultPlugins;\n"]}