mapcomplete/UI/Input/DirectionInput.ts

120 lines
No EOL
3.9 KiB
TypeScript

import {InputElement} from "./InputElement";
import {UIEventSource} from "../../Logic/UIEventSource";
import Combine from "../Base/Combine";
import Svg from "../../Svg";
import BaseUIElement from "../BaseUIElement";
import {FixedUiElement} from "../Base/FixedUiElement";
import {Utils} from "../../Utils";
import Loc from "../../Models/Loc";
import Minimap from "../Base/Minimap";
/**
* Selects a direction in degrees
*/
export default class DirectionInput extends InputElement<string> {
public readonly IsSelected: UIEventSource<boolean> = new UIEventSource<boolean>(false);
private readonly _location: UIEventSource<Loc>;
private readonly value: UIEventSource<string>;
private background;
constructor(mapBackground: UIEventSource<any>,
location: UIEventSource<Loc>,
value?: UIEventSource<string>) {
super();
this._location = location;
this.value = value ?? new UIEventSource<string>(undefined);
this.background = mapBackground;
}
GetValue(): UIEventSource<string> {
return this.value;
}
IsValid(str: string): boolean {
const t = Number(str);
return !isNaN(t) && t >= 0 && t <= 360;
}
protected InnerConstructElement(): HTMLElement {
let map: BaseUIElement = new FixedUiElement("")
if (!Utils.runningFromConsole) {
map = Minimap.createMiniMap({
background: this.background,
allowMoving: false,
location: this._location
})
}
const element = new Combine([
Svg.direction_stroke_svg().SetStyle(
`position: absolute;top: 0;left: 0;width: 100%;height: 100%;transform:rotate(${this.value.data ?? 0}deg);`)
.SetClass("direction-svg relative")
.SetStyle("z-index: 1000"),
map.SetStyle(
`position: absolute;top: 0;left: 0;width: 100%;height: 100%;`)
])
.SetStyle("width: min(100%, 25em); height: 0; padding-bottom: 100%") // A bit a weird CSS , see https://stackoverflow.com/questions/13851940/pure-css-solution-square-elements#19448481
.SetClass("relative block bg-white border border-black overflow-hidden rounded-full")
.ConstructElement()
this.value.addCallbackAndRunD(rotation => {
const cone = element.getElementsByClassName("direction-svg")[0] as HTMLElement
cone.style.transform = `rotate(${rotation}deg)`;
})
this.RegisterTriggers(element)
element.style.overflow = "hidden"
element.style.display = "block"
return element;
}
private RegisterTriggers(htmlElement: HTMLElement) {
const self = this;
function onPosChange(x: number, y: number) {
const rect = htmlElement.getBoundingClientRect();
const dx = -(rect.left + rect.right) / 2 + x;
const dy = (rect.top + rect.bottom) / 2 - y;
const angle = 180 * Math.atan2(dy, dx) / Math.PI;
const angleGeo = Math.floor((450 - angle) % 360);
self.value.setData("" + angleGeo)
}
htmlElement.ontouchmove = (ev: TouchEvent) => {
onPosChange(ev.touches[0].clientX, ev.touches[0].clientY);
ev.preventDefault();
}
htmlElement.ontouchstart = (ev: TouchEvent) => {
onPosChange(ev.touches[0].clientX, ev.touches[0].clientY);
}
let isDown = false;
htmlElement.onmousedown = (ev: MouseEvent) => {
isDown = true;
onPosChange(ev.clientX, ev.clientY);
ev.preventDefault();
}
htmlElement.onmouseup = (ev) => {
isDown = false;
ev.preventDefault();
}
htmlElement.onmousemove = (ev: MouseEvent) => {
if (isDown) {
onPosChange(ev.clientX, ev.clientY);
}
ev.preventDefault();
}
}
}