react-codemirror2/index.js

a tiny react codemirror component wrapper

'use strict';

function _extends() {
  _extends = Object.assign ? Object.assign.bind() : function(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];
      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }
    return target;
  };
  return _extends.apply(this, arguments);
}

function _typeof(o) {
  "@babel/helpers - typeof";
  return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function(o) {
    return typeof o;
  } : function(o) {
    return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
  }, _typeof(o);
}
var __extends = void 0 && (void 0).__extends || function() {
  var _extendStatics = function extendStatics(d, b) {
    _extendStatics = Object.setPrototypeOf || {
      __proto__: []
    }
    instanceof Array && function(d, b) {
      d.__proto__ = b;
    } || function(d, b) {
      for (var p in b)
        if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p];
    };
    return _extendStatics(d, b);
  };
  return function(d, b) {
    if (typeof b !== 'function' && b !== null) throw new TypeError('Class extends value ' + String(b) + ' is not a constructor or null');
    _extendStatics(d, b);

    function __() {
      this.constructor = d;
    }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  };
}();
Object.defineProperty(exports, '__esModule', {
  value: true
});
exports.UnControlled = exports.Controlled = void 0;
var React = require('react');
var SERVER_RENDERED = typeof navigator === 'undefined' || typeof global !== 'undefined' && global['PREVENT_CODEMIRROR_RENDER'] === true;
var cm;
if (!SERVER_RENDERED) {
  cm = require('codemirror');
}
var Helper = function() {
  function Helper() {}
  Helper.equals = function(x, y) {
    var _this = this;
    var ok = Object.keys,
      tx = _typeof(x),
      ty = _typeof(y);
    return x && y && tx === 'object' && tx === ty ? ok(x).length === ok(y).length && ok(x).every(function(key) {
      return _this.equals(x[key], y[key]);
    }) : x === y;
  };
  return Helper;
}();
var Shared = function() {
  function Shared(editor, props) {
    this.editor = editor;
    this.props = props;
  }
  Shared.prototype.delegateCursor = function(position, scroll, focus) {
    var doc = this.editor.getDoc();
    if (focus) {
      this.editor.focus();
    }
    scroll ? doc.setCursor(position) : doc.setCursor(position, null, {
      scroll: false
    });
  };
  Shared.prototype.delegateScroll = function(coordinates) {
    this.editor.scrollTo(coordinates.x, coordinates.y);
  };
  Shared.prototype.delegateSelection = function(ranges, focus) {
    var doc = this.editor.getDoc();
    doc.setSelections(ranges);
    if (focus) {
      this.editor.focus();
    }
  };
  Shared.prototype.apply = function(props) {
    if (props && props.selection && props.selection.ranges) {
      this.delegateSelection(props.selection.ranges, props.selection.focus || false);
    }
    if (props && props.cursor) {
      this.delegateCursor(props.cursor, props.autoScroll || false, this.editor.getOption('autofocus') || false);
    }
    if (props && props.scroll) {
      this.delegateScroll(props.scroll);
    }
  };
  Shared.prototype.applyNext = function(props, next, preserved) {
    if (props && props.selection && props.selection.ranges) {
      if (next && next.selection && next.selection.ranges && !Helper.equals(props.selection.ranges, next.selection.ranges)) {
        this.delegateSelection(next.selection.ranges, next.selection.focus || false);
      }
    }
    if (props && props.cursor) {
      if (next && next.cursor && !Helper.equals(props.cursor, next.cursor)) {
        this.delegateCursor(preserved.cursor || next.cursor, next.autoScroll || false, next.autoCursor || false);
      }
    }
    if (props && props.scroll) {
      if (next && next.scroll && !Helper.equals(props.scroll, next.scroll)) {
        this.delegateScroll(next.scroll);
      }
    }
  };
  Shared.prototype.applyUserDefined = function(props, preserved) {
    if (preserved && preserved.cursor) {
      this.delegateCursor(preserved.cursor, props.autoScroll || false, this.editor.getOption('autofocus') || false);
    }
  };
  Shared.prototype.wire = function(props) {
    var _this = this;
    Object.keys(props || {}).filter(function(p) {
      return /^on/.test(p);
    }).forEach(function(prop) {
      switch (prop) {
        case 'onBlur': {
          _this.editor.on('blur', function(cm, event) {
            _this.props.onBlur(_this.editor, event);
          });
        }
        break;
        case 'onContextMenu': {
          _this.editor.on('contextmenu', function(cm, event) {
            _this.props.onContextMenu(_this.editor, event);
          });
          break;
        }
        case 'onCopy': {
          _this.editor.on('copy', function(cm, event) {
            _this.props.onCopy(_this.editor, event);
          });
          break;
        }
        case 'onCursor': {
          _this.editor.on('cursorActivity', function(cm) {
            _this.props.onCursor(_this.editor, _this.editor.getDoc().getCursor());
          });
        }
        break;
        case 'onCursorActivity': {
          _this.editor.on('cursorActivity', function(cm) {
            _this.props.onCursorActivity(_this.editor);
          });
        }
        break;
        case 'onCut': {
          _this.editor.on('cut', function(cm, event) {
            _this.props.onCut(_this.editor, event);
          });
          break;
        }
        case 'onDblClick': {
          _this.editor.on('dblclick', function(cm, event) {
            _this.props.onDblClick(_this.editor, event);
          });
          break;
        }
        case 'onDragEnter': {
          _this.editor.on('dragenter', function(cm, event) {
            _this.props.onDragEnter(_this.editor, event);
          });
        }
        break;
        case 'onDragLeave': {
          _this.editor.on('dragleave', function(cm, event) {
            _this.props.onDragLeave(_this.editor, event);
          });
          break;
        }
        case 'onDragOver': {
          _this.editor.on('dragover', function(cm, event) {
            _this.props.onDragOver(_this.editor, event);
          });
        }
        break;
        case 'onDragStart': {
          _this.editor.on('dragstart', function(cm, event) {
            _this.props.onDragStart(_this.editor, event);
          });
          break;
        }
        case 'onDrop': {
          _this.editor.on('drop', function(cm, event) {
            _this.props.onDrop(_this.editor, event);
          });
        }
        break;
        case 'onFocus': {
          _this.editor.on('focus', function(cm, event) {
            _this.props.onFocus(_this.editor, event);
          });
        }
        break;
        case 'onGutterClick': {
          _this.editor.on('gutterClick', function(cm, lineNumber, gutter, event) {
            _this.props.onGutterClick(_this.editor, lineNumber, gutter, event);
          });
        }
        break;
        case 'onInputRead': {
          _this.editor.on('inputRead', function(cm, EditorChangeEvent) {
            _this.props.onInputRead(_this.editor, EditorChangeEvent);
          });
        }
        break;
        case 'onKeyDown': {
          _this.editor.on('keydown', function(cm, event) {
            _this.props.onKeyDown(_this.editor, event);
          });
        }
        break;
        case 'onKeyHandled': {
          _this.editor.on('keyHandled', function(cm, key, event) {
            _this.props.onKeyHandled(_this.editor, key, event);
          });
        }
        break;
        case 'onKeyPress': {
          _this.editor.on('keypress', function(cm, event) {
            _this.props.onKeyPress(_this.editor, event);
          });
        }
        break;
        case 'onKeyUp': {
          _this.editor.on('keyup', function(cm, event) {
            _this.props.onKeyUp(_this.editor, event);
          });
        }
        break;
        case 'onMouseDown': {
          _this.editor.on('mousedown', function(cm, event) {
            _this.props.onMouseDown(_this.editor, event);
          });
          break;
        }
        case 'onPaste': {
          _this.editor.on('paste', function(cm, event) {
            _this.props.onPaste(_this.editor, event);
          });
          break;
        }
        case 'onRenderLine': {
          _this.editor.on('renderLine', function(cm, line, element) {
            _this.props.onRenderLine(_this.editor, line, element);
          });
          break;
        }
        case 'onScroll': {
          _this.editor.on('scroll', function(cm) {
            _this.props.onScroll(_this.editor, _this.editor.getScrollInfo());
          });
        }
        break;
        case 'onSelection': {
          _this.editor.on('beforeSelectionChange', function(cm, data) {
            _this.props.onSelection(_this.editor, data);
          });
        }
        break;
        case 'onTouchStart': {
          _this.editor.on('touchstart', function(cm, event) {
            _this.props.onTouchStart(_this.editor, event);
          });
          break;
        }
        case 'onUpdate': {
          _this.editor.on('update', function(cm) {
            _this.props.onUpdate(_this.editor);
          });
        }
        break;
        case 'onViewportChange': {
          _this.editor.on('viewportChange', function(cm, from, to) {
            _this.props.onViewportChange(_this.editor, from, to);
          });
        }
        break;
      }
    });
  };
  return Shared;
}();
var Controlled = function(_super) {
  __extends(Controlled, _super);

  function Controlled(props) {
    var _this = _super.call(this, props) || this;
    if (SERVER_RENDERED) return _this;
    _this.applied = false;
    _this.appliedNext = false;
    _this.appliedUserDefined = false;
    _this.deferred = null;
    _this.emulating = false;
    _this.hydrated = false;
    _this.initCb = function() {
      if (_this.props.editorDidConfigure) {
        _this.props.editorDidConfigure(_this.editor);
      }
    };
    _this.mounted = false;
    return _this;
  }
  Controlled.prototype.hydrate = function(props) {
    var _this = this;
    var _options = props && props.options ? props.options : {};
    var userDefinedOptions = _extends({}, cm.defaults, this.editor.options, _options);
    var optionDelta = Object.keys(userDefinedOptions).some(function(key) {
      return _this.editor.getOption(key) !== userDefinedOptions[key];
    });
    if (optionDelta) {
      Object.keys(userDefinedOptions).forEach(function(key) {
        if (_options.hasOwnProperty(key)) {
          if (_this.editor.getOption(key) !== userDefinedOptions[key]) {
            _this.editor.setOption(key, userDefinedOptions[key]);
            _this.mirror.setOption(key, userDefinedOptions[key]);
          }
        }
      });
    }
    if (!this.hydrated) {
      this.deferred ? this.resolveChange(props.value) : this.initChange(props.value || '');
    }
    this.hydrated = true;
  };
  Controlled.prototype.initChange = function(value) {
    this.emulating = true;
    var doc = this.editor.getDoc();
    var lastLine = doc.lastLine();
    var lastChar = doc.getLine(doc.lastLine()).length;
    doc.replaceRange(value || '', {
      line: 0,
      ch: 0
    }, {
      line: lastLine,
      ch: lastChar
    });
    this.mirror.setValue(value);
    doc.clearHistory();
    this.mirror.clearHistory();
    this.emulating = false;
  };
  Controlled.prototype.resolveChange = function(value) {
    this.emulating = true;
    var doc = this.editor.getDoc();
    if (this.deferred.origin === 'undo') {
      doc.undo();
    } else if (this.deferred.origin === 'redo') {
      doc.redo();
    } else {
      doc.replaceRange(this.deferred.text, this.deferred.from, this.deferred.to, this.deferred.origin);
    }
    if (value && value !== doc.getValue()) {
      var cursor = doc.getCursor();
      doc.setValue(value);
      doc.setCursor(cursor);
    }
    this.emulating = false;
    this.deferred = null;
  };
  Controlled.prototype.mirrorChange = function(deferred) {
    var doc = this.editor.getDoc();
    if (deferred.origin === 'undo') {
      doc.setHistory(this.mirror.getHistory());
      this.mirror.undo();
    } else if (deferred.origin === 'redo') {
      doc.setHistory(this.mirror.getHistory());
      this.mirror.redo();
    } else {
      this.mirror.replaceRange(deferred.text, deferred.from, deferred.to, deferred.origin);
    }
    return this.mirror.getValue();
  };
  Controlled.prototype.componentDidMount = function() {
    var _this = this;
    if (SERVER_RENDERED) return;
    if (this.props.defineMode) {
      if (this.props.defineMode.name && this.props.defineMode.fn) {
        cm.defineMode(this.props.defineMode.name, this.props.defineMode.fn);
      }
    }
    this.editor = cm(this.ref, this.props.options);
    this.shared = new Shared(this.editor, this.props);
    this.mirror = cm(function() {}, this.props.options);
    this.editor.on('electricInput', function() {
      _this.mirror.setHistory(_this.editor.getDoc().getHistory());
    });
    this.editor.on('cursorActivity', function() {
      _this.mirror.setCursor(_this.editor.getDoc().getCursor());
    });
    this.editor.on('beforeChange', function(cm, data) {
      if (_this.emulating) {
        return;
      }
      data.cancel();
      _this.deferred = data;
      var phantomChange = _this.mirrorChange(_this.deferred);
      if (_this.props.onBeforeChange) _this.props.onBeforeChange(_this.editor, _this.deferred, phantomChange);
    });
    this.editor.on('change', function(cm, data) {
      if (!_this.mounted) {
        return;
      }
      if (_this.props.onChange) {
        _this.props.onChange(_this.editor, data, _this.editor.getValue());
      }
    });
    this.hydrate(this.props);
    this.shared.apply(this.props);
    this.applied = true;
    this.mounted = true;
    this.shared.wire(this.props);
    if (this.editor.getOption('autofocus')) {
      this.editor.focus();
    }
    if (this.props.editorDidMount) {
      this.props.editorDidMount(this.editor, this.editor.getValue(), this.initCb);
    }
  };
  Controlled.prototype.componentDidUpdate = function(prevProps) {
    if (SERVER_RENDERED) return;
    var preserved = {
      cursor: null
    };
    if (this.props.value !== prevProps.value) {
      this.hydrated = false;
    }
    if (!this.props.autoCursor && this.props.autoCursor !== undefined) {
      preserved.cursor = this.editor.getDoc().getCursor();
    }
    this.hydrate(this.props);
    if (!this.appliedNext) {
      this.shared.applyNext(prevProps, this.props, preserved);
      this.appliedNext = true;
    }
    this.shared.applyUserDefined(prevProps, preserved);
    this.appliedUserDefined = true;
  };
  Controlled.prototype.componentWillUnmount = function() {
    if (SERVER_RENDERED) return;
    if (this.props.editorWillUnmount) {
      this.props.editorWillUnmount(cm);
    }
  };
  Controlled.prototype.shouldComponentUpdate = function(nextProps, nextState) {
    return !SERVER_RENDERED;
  };
  Controlled.prototype.render = function() {
    var _this = this;
    if (SERVER_RENDERED) return null;
    var className = this.props.className ? 'react-codemirror2 '.concat(this.props.className) : 'react-codemirror2';
    return React.createElement('div', {
      className: className,
      ref: function ref(self) {
        return _this.ref = self;
      }
    });
  };
  return Controlled;
}(React.Component);
exports.Controlled = Controlled;
var UnControlled = function(_super) {
  __extends(UnControlled, _super);

  function UnControlled(props) {
    var _this = _super.call(this, props) || this;
    if (SERVER_RENDERED) return _this;
    _this.applied = false;
    _this.appliedUserDefined = false;
    _this.continueChange = false;
    _this.detached = false;
    _this.hydrated = false;
    _this.initCb = function() {
      if (_this.props.editorDidConfigure) {
        _this.props.editorDidConfigure(_this.editor);
      }
    };
    _this.mounted = false;
    _this.onBeforeChangeCb = function() {
      _this.continueChange = true;
    };
    return _this;
  }
  UnControlled.prototype.hydrate = function(props) {
    var _this = this;
    var _options = props && props.options ? props.options : {};
    var userDefinedOptions = _extends({}, cm.defaults, this.editor.options, _options);
    var optionDelta = Object.keys(userDefinedOptions).some(function(key) {
      return _this.editor.getOption(key) !== userDefinedOptions[key];
    });
    if (optionDelta) {
      Object.keys(userDefinedOptions).forEach(function(key) {
        if (_options.hasOwnProperty(key)) {
          if (_this.editor.getOption(key) !== userDefinedOptions[key]) {
            _this.editor.setOption(key, userDefinedOptions[key]);
          }
        }
      });
    }
    if (!this.hydrated) {
      var doc = this.editor.getDoc();
      var lastLine = doc.lastLine();
      var lastChar = doc.getLine(doc.lastLine()).length;
      doc.replaceRange(props.value || '', {
        line: 0,
        ch: 0
      }, {
        line: lastLine,
        ch: lastChar
      });
    }
    this.hydrated = true;
  };
  UnControlled.prototype.componentDidMount = function() {
    var _this = this;
    if (SERVER_RENDERED) return;
    this.detached = this.props.detach === true;
    if (this.props.defineMode) {
      if (this.props.defineMode.name && this.props.defineMode.fn) {
        cm.defineMode(this.props.defineMode.name, this.props.defineMode.fn);
      }
    }
    this.editor = cm(this.ref, this.props.options);
    this.shared = new Shared(this.editor, this.props);
    this.editor.on('beforeChange', function(cm, data) {
      if (_this.props.onBeforeChange) {
        _this.props.onBeforeChange(_this.editor, data, _this.editor.getValue(), _this.onBeforeChangeCb);
      }
    });
    this.editor.on('change', function(cm, data) {
      if (!_this.mounted || !_this.props.onChange) {
        return;
      }
      if (_this.props.onBeforeChange) {
        if (_this.continueChange) {
          _this.props.onChange(_this.editor, data, _this.editor.getValue());
        }
      } else {
        _this.props.onChange(_this.editor, data, _this.editor.getValue());
      }
    });
    this.hydrate(this.props);
    this.shared.apply(this.props);
    this.applied = true;
    this.mounted = true;
    this.shared.wire(this.props);
    this.editor.getDoc().clearHistory();
    if (this.props.editorDidMount) {
      this.props.editorDidMount(this.editor, this.editor.getValue(), this.initCb);
    }
  };
  UnControlled.prototype.componentDidUpdate = function(prevProps) {
    if (this.detached && this.props.detach === false) {
      this.detached = false;
      if (prevProps.editorDidAttach) {
        prevProps.editorDidAttach(this.editor);
      }
    }
    if (!this.detached && this.props.detach === true) {
      this.detached = true;
      if (prevProps.editorDidDetach) {
        prevProps.editorDidDetach(this.editor);
      }
    }
    if (SERVER_RENDERED || this.detached) return;
    var preserved = {
      cursor: null
    };
    if (this.props.value !== prevProps.value) {
      this.hydrated = false;
      this.applied = false;
      this.appliedUserDefined = false;
    }
    if (!prevProps.autoCursor && prevProps.autoCursor !== undefined) {
      preserved.cursor = this.editor.getDoc().getCursor();
    }
    this.hydrate(this.props);
    if (!this.applied) {
      this.shared.apply(prevProps);
      this.applied = true;
    }
    if (!this.appliedUserDefined) {
      this.shared.applyUserDefined(prevProps, preserved);
      this.appliedUserDefined = true;
    }
  };
  UnControlled.prototype.componentWillUnmount = function() {
    if (SERVER_RENDERED) return;
    if (this.props.editorWillUnmount) {
      this.props.editorWillUnmount(cm);
    }
  };
  UnControlled.prototype.shouldComponentUpdate = function(nextProps, nextState) {
    var update = true;
    if (SERVER_RENDERED) update = false;
    if (this.detached && nextProps.detach) update = false;
    return update;
  };
  UnControlled.prototype.render = function() {
    var _this = this;
    if (SERVER_RENDERED) return null;
    var className = this.props.className ? 'react-codemirror2 '.concat(this.props.className) : 'react-codemirror2';
    return React.createElement('div', {
      className: className,
      ref: function ref(self) {
        return _this.ref = self;
      }
    });
  };
  return UnControlled;
}(React.Component);
exports.UnControlled = UnControlled;