@blueprintjs/core
Version:
Core styles & components
67 lines (66 loc) • 3.11 kB
JavaScript
/*
* Copyright 2016 Palantir Technologies, Inc. All rights reserved.
*
* Licensed under the terms of the LICENSE file distributed with this project.
*/
import * as React from "react";
import { isFunction, safeInvoke } from "../../common/utils";
import { HotkeyScope, HotkeysEvents } from "./hotkeysEvents";
export function HotkeysTarget(constructor) {
var _a = constructor.prototype, componentWillMount = _a.componentWillMount, componentDidMount = _a.componentDidMount, componentWillUnmount = _a.componentWillUnmount, render = _a.render, renderHotkeys = _a.renderHotkeys;
if (!isFunction(renderHotkeys)) {
throw new Error("@HotkeysTarget-decorated class must implement `renderHotkeys`. " + constructor);
}
// tslint:disable no-invalid-this only-arrow-functions
constructor.prototype.componentWillMount = function () {
this.localHotkeysEvents = new HotkeysEvents(HotkeyScope.LOCAL);
this.globalHotkeysEvents = new HotkeysEvents(HotkeyScope.GLOBAL);
if (componentWillMount != null) {
componentWillMount.call(this);
}
};
constructor.prototype.componentDidMount = function () {
// attach global key event listeners
document.addEventListener("keydown", this.globalHotkeysEvents.handleKeyDown);
document.addEventListener("keyup", this.globalHotkeysEvents.handleKeyUp);
if (componentDidMount != null) {
componentDidMount.call(this);
}
};
constructor.prototype.componentWillUnmount = function () {
// detach global key event listeners
document.removeEventListener("keydown", this.globalHotkeysEvents.handleKeyDown);
document.removeEventListener("keyup", this.globalHotkeysEvents.handleKeyUp);
this.globalHotkeysEvents.clear();
this.localHotkeysEvents.clear();
if (componentWillUnmount != null) {
componentWillUnmount.call(this);
}
};
constructor.prototype.render = function () {
var _this = this;
var element = render.call(this);
var hotkeys = renderHotkeys.call(this);
this.localHotkeysEvents.setHotkeys(hotkeys.props);
this.globalHotkeysEvents.setHotkeys(hotkeys.props);
// attach local key event listeners
if (element != null && this.localHotkeysEvents.count() > 0) {
var tabIndex = hotkeys.props.tabIndex === undefined ? 0 : hotkeys.props.tabIndex;
var existingKeyDown_1 = element.props.onKeyDown;
var onKeyDown = function (e) {
_this.localHotkeysEvents.handleKeyDown(e.nativeEvent);
safeInvoke(existingKeyDown_1, e);
};
var existingKeyUp_1 = element.props.onKeyUp;
var onKeyUp = function (e) {
_this.localHotkeysEvents.handleKeyUp(e.nativeEvent);
safeInvoke(existingKeyUp_1, e);
};
return React.cloneElement(element, { tabIndex: tabIndex, onKeyDown: onKeyDown, onKeyUp: onKeyUp });
}
else {
return element;
}
};
// tslint:enable
}