@instructure/quiz-interactions
Version:
A React UI component Library for quiz interaction types.
360 lines (359 loc) • 12.9 kB
JavaScript
/** @jsx jsx */ function _assert_this_initialized(self) {
if (self === void 0) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return self;
}
function _call_super(_this, derived, args) {
derived = _get_prototype_of(derived);
return _possible_constructor_return(_this, _is_native_reflect_construct() ? Reflect.construct(derived, args || [], _get_prototype_of(_this).constructor) : derived.apply(_this, args));
}
function _class_call_check(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a 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);
}
}
function _create_class(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;
}
function _define_property(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;
}
function _get_prototype_of(o) {
_get_prototype_of = Object.setPrototypeOf ? Object.getPrototypeOf : function getPrototypeOf(o) {
return o.__proto__ || Object.getPrototypeOf(o);
};
return _get_prototype_of(o);
}
function _inherits(subClass, superClass) {
if (typeof superClass !== "function" && superClass !== null) {
throw new TypeError("Super expression must either be null or a function");
}
subClass.prototype = Object.create(superClass && superClass.prototype, {
constructor: {
value: subClass,
writable: true,
configurable: true
}
});
if (superClass) _set_prototype_of(subClass, superClass);
}
function _object_spread(target) {
for(var i = 1; i < arguments.length; i++){
var source = arguments[i] != null ? arguments[i] : {};
var ownKeys = Object.keys(source);
if (typeof Object.getOwnPropertySymbols === "function") {
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function(sym) {
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
}));
}
ownKeys.forEach(function(key) {
_define_property(target, key, source[key]);
});
}
return target;
}
function ownKeys(object, enumerableOnly) {
var keys = Object.keys(object);
if (Object.getOwnPropertySymbols) {
var symbols = Object.getOwnPropertySymbols(object);
if (enumerableOnly) {
symbols = symbols.filter(function(sym) {
return Object.getOwnPropertyDescriptor(object, sym).enumerable;
});
}
keys.push.apply(keys, symbols);
}
return keys;
}
function _object_spread_props(target, source) {
source = source != null ? source : {};
if (Object.getOwnPropertyDescriptors) {
Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
} else {
ownKeys(Object(source)).forEach(function(key) {
Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
});
}
return target;
}
function _possible_constructor_return(self, call) {
if (call && (_type_of(call) === "object" || typeof call === "function")) {
return call;
}
return _assert_this_initialized(self);
}
function _set_prototype_of(o, p) {
_set_prototype_of = Object.setPrototypeOf || function setPrototypeOf(o, p) {
o.__proto__ = p;
return o;
};
return _set_prototype_of(o, p);
}
function _type_of(obj) {
"@swc/helpers - typeof";
return obj && typeof Symbol !== "undefined" && obj.constructor === Symbol ? "symbol" : typeof obj;
}
function _is_native_reflect_construct() {
try {
var result = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function() {}));
} catch (_) {}
return (_is_native_reflect_construct = function() {
return !!result;
})();
}
function _ts_decorate(decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for(var i = decorators.length - 1; i >= 0; i--)if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
}
import { Component } from 'react';
import PropTypes from 'prop-types';
import pickBy from 'lodash/pickBy';
import propTypes, { defaultProps } from './propTypes';
import { jsx } from '@instructure/emotion';
import generateComponentTheme from './theme';
import generateStyle from './styles';
import { withStyleOverrides } from '@instructure/quiz-common';
var Canvas = /*#__PURE__*/ function(Component) {
"use strict";
_inherits(Canvas, Component);
function Canvas(props) {
_class_call_check(this, Canvas);
var _this;
_this = _call_super(this, Canvas, [
props
]), _define_property(_this, "state", {
isDrawing: false
}), _define_property(_this, "refCanvas", function(node) {
_this.canvasElement = node;
}), // ===========
// ACTIONS
// ===========
_define_property(_this, "drawShape", function(coordinates) {
_this.clearCanvas();
_this.props.drawShape(coordinates);
}), // ===========
// HANDLERS
// ===========
_define_property(_this, "onMouseOut", function(e) {
// the mouse out event is handled by default as a click/release on the exiting canvas border
_this.props.onMouseOut // eslint-disable-line no-unused-expressions
? _this.props.onMouseOut(e) : function(e) {};
});
// these handlers shouldn't change, so set them once per initialization
_this.eventHandlers = _object_spread({
onMouseOut: _this.onMouseOut
}, pickBy(props, function(prop, propName) {
return prop !== null && propName.startsWith('on');
}));
return _this;
}
_create_class(Canvas, [
{
key: "componentDidMount",
value: function componentDidMount() {
if (this.props.realRef) {
this.props.realRef(this);
}
this.drawShape(this.props.coordinates);
}
},
{
key: "componentDidUpdate",
value: function componentDidUpdate() {
this.drawShape(this.props.coordinates);
if (this.isDrawing()) {
this.canvasElement.focus();
}
}
},
{
// ===========
// HELPERS
// ===========
key: "isDrawing",
value: function isDrawing() {
return this.state.isDrawing;
}
},
{
key: "getInitialCoordinate",
value: function getInitialCoordinate() {
return this.props.coordinates[0];
}
},
{
key: "getLastCoordinate",
value: function getLastCoordinate() {
return this.props.coordinates[this.props.coordinates.length - 1];
}
},
{
key: "getCurrentCoordinates",
value: function getCurrentCoordinates(e) {
var x = e.nativeEvent.offsetX;
var y = e.nativeEvent.offsetY;
return {
x: x,
y: y
};
}
},
{
key: "convertTouchCoordinates",
value: function convertTouchCoordinates(touchEvent) {
var rect = this.canvasElement.getBoundingClientRect();
var x = touchEvent.changedTouches[0].pageX - rect.left;
var y = touchEvent.changedTouches[0].pageY - rect.top;
var evt = {
nativeEvent: {
offsetX: x,
offsetY: y
}
};
return evt;
}
},
{
key: "focus",
value: function focus() {
this.canvasElement.focus();
}
},
{
key: "clearCanvas",
value: function clearCanvas() {
var ctx = this.canvasElement.getContext('2d');
ctx.clearRect(0, 0, this.canvasElement.width, this.canvasElement.height);
}
},
{
key: "setStrokeStyle",
value: function setStrokeStyle() {
var color = arguments.length > 0 && arguments[0] !== void 0 ? arguments[0] : this.props.styles.shapeColor;
var ctx = this.canvasElement.getContext('2d');
ctx.lineWidth = 2;
ctx.strokeStyle = color;
}
},
{
key: "setFillStyle",
value: function setFillStyle() {
var color = arguments.length > 0 && arguments[0] !== void 0 ? arguments[0] : this.props.styles.shapeColor;
var ctx = this.canvasElement.getContext('2d');
ctx.globalAlpha = 0.5;
ctx.fillStyle = color;
}
},
{
key: "startDrawing",
value: function startDrawing(e) {
var initialCoordinate = this.getCurrentCoordinates(e);
this.props.handleSetCoordinates([
initialCoordinate
], true);
this.setState({
isDrawing: true
});
}
},
{
key: "stopDrawing",
value: function stopDrawing(coordinates) {
this.props.handleSetCoordinates(coordinates, false);
this.setState({
isDrawing: false
});
}
},
{
// ===========
// RENDER
// ===========
key: "renderCanvas",
value: function renderCanvas() {
if (this.props.readOnly) {
return /*#__PURE__*/ jsx("canvas", {
height: this.props.height,
ref: this.refCanvas,
width: this.props.width
});
}
return /*#__PURE__*/ jsx("canvas", _object_spread({
css: this.props.styles.canvas,
height: this.props.height,
ref: this.refCanvas,
tabIndex: "0",
width: this.props.width,
onBlur: this.onMouseOut
}, this.eventHandlers));
}
},
{
key: "render",
value: function render() {
return /*#__PURE__*/ jsx("div", {
css: this.props.styles.canvasWrapper
}, this.renderCanvas());
}
}
]);
return Canvas;
}(Component);
_define_property(Canvas, "displayName", 'Canvas');
_define_property(Canvas, "componentId", "Quizzes".concat(Canvas.displayName));
_define_property(Canvas, "propTypes", _object_spread_props(_object_spread({}, propTypes), {
realRef: PropTypes.func,
drawShape: PropTypes.func.isRequired,
onMouseOut: PropTypes.func,
onMouseMove: PropTypes.func,
onDoubleClick: PropTypes.func,
onClick: PropTypes.func,
onKeyPress: PropTypes.func,
onMouseDown: PropTypes.func,
onMouseUp: PropTypes.func,
onTouchStart: PropTypes.func,
onTouchMove: PropTypes.func,
onTouchEnd: PropTypes.func,
styles: PropTypes.object
}));
_define_property(Canvas, "defaultProps", _object_spread({
realRef: null,
onMouseOut: null,
onMouseMove: null,
onDoubleClick: null,
onClick: null,
onKeyPress: null,
onMouseDown: null,
onMouseUp: null,
onTouchStart: null,
onTouchMove: null,
onTouchEnd: null
}, defaultProps));
export { Canvas as default };
Canvas = _ts_decorate([
withStyleOverrides(generateStyle, generateComponentTheme)
], Canvas);