singularityui-tailer/lib/components/LogLines.js

A robust log tailer

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.LOG_LINE_HEIGHT = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _immutable = require('immutable');

var _LineRenderGroup = require('./LineRenderGroup');

var _LineRenderGroup2 = _interopRequireDefault(_LineRenderGroup);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var LOG_LINE_HEIGHT = exports.LOG_LINE_HEIGHT = 14;

var GROUP_OFFSET = 5000;

var LogLines = function (_Component) {
  _inherits(LogLines, _Component);

  function LogLines() {
    _classCallCheck(this, LogLines);

    var _this = _possibleConstructorReturn(this, (LogLines.__proto__ || Object.getPrototypeOf(LogLines)).call(this));

    _this.state = {
      renderGroups: new _immutable.List()
    };
    return _this;
  }

  _createClass(LogLines, [{
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      if (this.props.lines !== nextProps.lines) {
        var newRenderGroups = new _immutable.List();

        nextProps.lines.forEach(function (line) {
          if (!newRenderGroups.size) {
            // initialize on the first line
            newRenderGroups = newRenderGroups.push(new _immutable.List().push(line));
          } else {
            // is the current line > the latest group's first line offset + GROUP
            var latestRenderGroup = newRenderGroups.last();
            var thisGroupNum = line.start / GROUP_OFFSET;
            var lastLineGroupNum = latestRenderGroup.last().start / GROUP_OFFSET;
            // I dunno about these floating points.

            var shouldSplit = Math.floor(thisGroupNum) > Math.floor(lastLineGroupNum) + 0.1;

            if (shouldSplit) {
              newRenderGroups = newRenderGroups.push(new _immutable.List().push(line));
            } else {
              newRenderGroups = newRenderGroups.set(-1, latestRenderGroup.push(line));
            }
          }
        });

        this.setState({
          renderGroups: newRenderGroups
        });
      }
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps) {
      return this.props.lines !== nextProps.lines;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      if (!this.props.isLoaded) {
        return _react2.default.createElement(
          'div',
          null,
          'Loading...'
        );
      }

      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement('div', {
          style: { height: this.props.fakeLineCount * LOG_LINE_HEIGHT },
          key: 'fakeLines'
        }),
        this.state.renderGroups.map(function (lines) {
          return _react2.default.createElement(_this2.props.lineRenderGroupComponent, {
            key: lines.first().start,
            lines: lines,
            highlightedOffset: _this2.props.highlightedOffset,
            lineLinkRenderer: _this2.props.lineLinkRenderer
          });
        })
      );
    }
  }]);

  return LogLines;
}(_react.Component);

LogLines.propTypes = {
  isLoaded: _react.PropTypes.bool.isRequired,
  lines: _react.PropTypes.instanceOf(_immutable.List).isRequired,
  fakeLineCount: _react.PropTypes.number,
  lineLinkRenderer: _react.PropTypes.func,
  highlightedOffset: _react.PropTypes.number,
  lineRenderGroupComponent: _react.PropTypes.func.isRequired
};

LogLines.defaultProps = {
  fakeLineCount: 0,
  lineRenderGroupComponent: _LineRenderGroup2.default
};

var _default = LogLines;
exports.default = _default;
;

var _temp = function () {
  if (typeof __REACT_HOT_LOADER__ === 'undefined') {
    return;
  }

  __REACT_HOT_LOADER__.register(LOG_LINE_HEIGHT, 'LOG_LINE_HEIGHT', 'src/components/LogLines.js');

  __REACT_HOT_LOADER__.register(GROUP_OFFSET, 'GROUP_OFFSET', 'src/components/LogLines.js');

  __REACT_HOT_LOADER__.register(LogLines, 'LogLines', 'src/components/LogLines.js');

  __REACT_HOT_LOADER__.register(_default, 'default', 'src/components/LogLines.js');
}();

;