gl-react-dom/lib/GLViewDOM.js

DOM implementation of gl-react, an universal React library to write and compose WebGL shaders

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _react = _interopRequireWildcard(require("react"));

var _propTypes = _interopRequireDefault(require("prop-types"));

var _invariant = _interopRequireDefault(require("invariant"));

var _getContext = _interopRequireDefault(require("./getContext"));

var _loseGL = _interopRequireDefault(require("./loseGL"));

const _excluded = ["width", "height", "pixelRatio", "style", "debug", "version"];

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

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

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 ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }

function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

const __DEV__ = process.env.NODE_ENV === "development";
/**
 * WebGL context initial options.
 */


const propTypes = {
  onContextCreate: _propTypes.default.func.isRequired,
  onContextFailure: _propTypes.default.func.isRequired,
  onContextLost: _propTypes.default.func.isRequired,
  onContextRestored: _propTypes.default.func.isRequired,
  webglContextAttributes: _propTypes.default.object,
  width: _propTypes.default.number.isRequired,
  height: _propTypes.default.number.isRequired,
  style: _propTypes.default.object,
  pixelRatio: _propTypes.default.number,
  version: _propTypes.default.string
};

class ErrorDebug extends _react.Component {
  render() {
    const {
      error
    } = this.props;
    let title = String(error.rawError || error.message || error);
    let detail = String(error.longMessage || error.rawError || "");
    const style = {
      width: "100%",
      height: "100%",
      position: "absolute",
      top: 0,
      left: 0,
      padding: "1em",
      background: "#a00",
      color: "#fff",
      fontSize: "12px",
      lineHeight: "1.2em",
      fontStyle: "normal",
      fontWeight: "normal",
      fontFamily: "monospace",
      overflow: "auto"
    };
    const titleStyle = {
      fontWeight: "bold",
      marginBottom: "1em"
    };
    const detailStyle = {
      whiteSpace: "pre"
    };
    return /*#__PURE__*/_react.default.createElement("div", {
      style: style
    }, /*#__PURE__*/_react.default.createElement("div", {
      style: titleStyle
    }, title), /*#__PURE__*/_react.default.createElement("div", {
      style: detailStyle
    }, detail));
  }

}

class GLViewDOM extends _react.Component {
  constructor(...args) {
    super(...args);

    _defineProperty(this, "state", {
      error: null
    });

    _defineProperty(this, "webglContextAttributes", void 0);

    _defineProperty(this, "canvas", void 0);

    _defineProperty(this, "gl", void 0);

    _defineProperty(this, "_onContextLost", e => {
      e.preventDefault();
      this.gl = null;
      this.props.onContextLost();
    });

    _defineProperty(this, "_onContextRestored", () => {
      this.gl = this._createContext();
      this.props.onContextRestored(this.gl);
    });

    _defineProperty(this, "onRef", ref => {
      this.canvas = ref;
    });

    _defineProperty(this, "debugError", !__DEV__ ? null : error => {
      this.setState({
        error
      });
    });

    _defineProperty(this, "afterDraw", !__DEV__ ? null : () => {
      if (this.state.error) {
        this.setState({
          error: null
        });
      }
    });
  }

  componentDidMount() {
    const {
      onContextCreate,
      onContextFailure
    } = this.props;

    const gl = this._createContext();

    if (gl) {
      this.gl = gl;
      onContextCreate(gl);
      const {
        canvas
      } = this;
      (0, _invariant.default)(canvas, "canvas is not settled in GLViewDOM#componentDidMount");
      canvas.addEventListener("webglcontextlost", this._onContextLost);
      canvas.addEventListener("webglcontextrestored", this._onContextRestored);
    } else {
      onContextFailure(new Error("no-webgl-context"));
    }
  }

  componentWillUnmount() {
    if (this.gl) {
      (0, _loseGL.default)(this.gl);
      this.gl = null;
    }

    const {
      canvas
    } = this;

    if (canvas) {
      canvas.removeEventListener("webglcontextlost", this._onContextLost);
      canvas.removeEventListener("webglcontextrestored", this._onContextRestored);
    }
  }

  render() {
    const {
      error
    } = this.state;

    let _this$props = this.props,
        {
      width,
      height,
      pixelRatio,
      style,
      debug,
      version
    } = _this$props,
        rest = _objectWithoutProperties(_this$props, _excluded);

    if (!pixelRatio) pixelRatio = Number(typeof window === "object" && window.devicePixelRatio || 1);

    for (let k in propTypes) {
      if (rest.hasOwnProperty(k)) {
        delete rest[k];
      }
    }

    return /*#__PURE__*/_react.default.createElement("span", {
      style: _objectSpread(_objectSpread({
        position: "relative"
      }, style), {}, {
        display: "inline-block",
        width,
        height
      })
    }, /*#__PURE__*/_react.default.createElement("canvas", _extends({
      ref: this.onRef,
      style: {
        width,
        height
      },
      width: width * pixelRatio,
      height: height * pixelRatio
    }, rest)), error ? /*#__PURE__*/_react.default.createElement(ErrorDebug, {
      error: error
    }) : null);
  }

  _createContext() {
    const {
      webglContextAttributes,
      debug,
      version
    } = this.props;
    const gl = (0, _getContext.default)(this.canvas, debug ? _objectSpread(_objectSpread({}, webglContextAttributes), {}, {
      preserveDrawingBuffer: true
    }) : webglContextAttributes, version || "auto");
    this.webglContextAttributes = webglContextAttributes || {};
    return gl;
  }

  captureAsDataURL(...args) {
    if (!this.webglContextAttributes.preserveDrawingBuffer) {
      console.warn("Surface#captureAsDataURL is likely to not work if you don't define webglContextAttributes={{ preserveDrawingBuffer: true }}");
    }

    (0, _invariant.default)(this.canvas, "canvas is no longer available");
    return this.canvas.toDataURL(...args);
  }

  captureAsBlob(...args) {
    if (!this.webglContextAttributes.preserveDrawingBuffer) {
      console.warn("Surface#captureAsBlob is likely to not work if you don't define webglContextAttributes={{ preserveDrawingBuffer: true }}");
    }

    return Promise.resolve().then(() => new Promise((resolve, reject) => this.canvas ? this.canvas.toBlob(resolve, ...args) : reject(new Error("canvas is no longer available"))));
  }

}

exports.default = GLViewDOM;

_defineProperty(GLViewDOM, "propTypes", propTypes);
//# sourceMappingURL=GLViewDOM.js.map