@shopify/flash-list
Version:
FlashList is a more performant FlatList replacement
37 lines • 1.57 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.PureComponentWrapper = void 0;
var tslib_1 = require("tslib");
var react_1 = tslib_1.__importDefault(require("react"));
/**
* Pure component wrapper that can be used to prevent renders of the `renderer` method passed to the component. Any change in props will lead to `renderer` getting called.
*/
var PureComponentWrapper = /** @class */ (function (_super) {
tslib_1.__extends(PureComponentWrapper, _super);
function PureComponentWrapper() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.overrideEnabled = undefined;
return _this;
}
/** Once set explicitly, prop will be ignored. Not using state because of performance reasons. */
PureComponentWrapper.prototype.setEnabled = function (enabled) {
if (enabled !== this.overrideEnabled) {
this.overrideEnabled = enabled;
this.forceUpdate();
}
};
PureComponentWrapper.prototype.render = function () {
if (this.overrideEnabled === undefined) {
return ((this.props.enabled && this.props.renderer(this.props.arg)) || null);
}
else {
return ((this.overrideEnabled && this.props.renderer(this.props.arg)) || null);
}
};
PureComponentWrapper.defaultProps = {
enabled: true,
};
return PureComponentWrapper;
}(react_1.default.PureComponent));
exports.PureComponentWrapper = PureComponentWrapper;
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