@blueprintjs/core
Version:
Core styles & components
95 lines (94 loc) • 3.97 kB
JavaScript
/*
* Copyright 2017 Palantir Technologies, Inc. All rights reserved.
*
* Licensed under the terms of the LICENSE file distributed with this project.
*/
import * as tslib_1 from "tslib";
import * as classNames from "classnames";
import * as React from "react";
import * as Classes from "../../common/classes";
import * as Keys from "../../common/keys";
import { safeInvoke } from "../../common/utils";
import { Icon } from "../icon/icon";
import { Spinner } from "../spinner/spinner";
var AbstractButton = (function (_super) {
tslib_1.__extends(AbstractButton, _super);
function AbstractButton() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.state = {
isActive: false,
};
_this.refHandlers = {
button: function (ref) {
_this.buttonRef = ref;
safeInvoke(_this.props.elementRef, ref);
},
};
_this.currentKeyDown = null;
// we're casting as `any` to get around a somewhat opaque safeInvoke error
// that "Type argument candidate 'KeyboardEvent<T>' is not a valid type
// argument because it is not a supertype of candidate
// 'KeyboardEvent<HTMLElement>'."
_this.handleKeyDown = function (e) {
if (isKeyboardClick(e.which)) {
e.preventDefault();
if (e.which !== _this.currentKeyDown) {
_this.setState({ isActive: true });
}
}
_this.currentKeyDown = e.which;
safeInvoke(_this.props.onKeyDown, e);
};
_this.handleKeyUp = function (e) {
if (isKeyboardClick(e.which)) {
_this.setState({ isActive: false });
_this.buttonRef.click();
}
_this.currentKeyDown = null;
safeInvoke(_this.props.onKeyUp, e);
};
return _this;
}
AbstractButton.prototype.getCommonButtonProps = function () {
var disabled = this.props.disabled || this.props.loading;
var className = classNames(Classes.BUTTON, (_a = {},
_a[Classes.ACTIVE] = this.state.isActive || this.props.active,
_a[Classes.DISABLED] = disabled,
_a[Classes.LOADING] = this.props.loading,
_a), Classes.iconClass(this.props.iconName), Classes.intentClass(this.props.intent), this.props.className);
return {
className: className,
disabled: disabled,
onClick: disabled ? undefined : this.props.onClick,
onKeyDown: this.handleKeyDown,
onKeyUp: this.handleKeyUp,
ref: this.refHandlers.button,
};
var _a;
};
AbstractButton.prototype.renderChildren = function () {
var _a = this.props, loading = _a.loading, rightIconName = _a.rightIconName, text = _a.text;
var children = React.Children.map(this.props.children, function (child, index) {
if (child === "") {
// render as undefined to avoid extra space after icon
return undefined;
}
else if (typeof child === "string") {
// must wrap string children in spans so loading prop can hide them
return React.createElement("span", { key: "text-" + index }, child);
}
return child;
});
return [
loading ? React.createElement(Spinner, { className: "pt-small pt-button-spinner", key: "spinner" }) : undefined,
text != null ? React.createElement("span", { key: "text" }, text) : undefined
].concat(children, [
React.createElement(Icon, { className: Classes.ALIGN_RIGHT, iconName: rightIconName, key: "icon" }),
]);
};
return AbstractButton;
}(React.Component));
export { AbstractButton };
function isKeyboardClick(keyCode) {
return keyCode === Keys.ENTER || keyCode === Keys.SPACE;
}