107 lines
3.2 KiB
TypeScript
107 lines
3.2 KiB
TypeScript
class Contextmenu<x, y> {
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static currentmenu: HTMLElement | "";
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name: string;
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buttons: [
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string,
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(this: x, arg: y, e: MouseEvent) => void,
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string | null,
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(this: x, arg: y) => boolean,
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(this: x, arg: y) => boolean,
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string
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][];
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div!: HTMLDivElement;
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static setup() {
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Contextmenu.currentmenu = "";
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document.addEventListener("click", (event) => {
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if (Contextmenu.currentmenu === "") {
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return;
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}
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if (!Contextmenu.currentmenu.contains(event.target as Node)) {
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Contextmenu.currentmenu.remove();
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Contextmenu.currentmenu = "";
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}
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});
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}
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constructor(name: string) {
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this.name = name;
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this.buttons = [];
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}
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addbutton(
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text: string,
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onclick: (this: x, arg: y, e: MouseEvent) => void,
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img: null | string = null,
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shown: (this: x, arg: y) => boolean = (_) => true,
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enabled: (this: x, arg: y) => boolean = (_) => true
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) {
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this.buttons.push([text, onclick, img, shown, enabled, "button"]);
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return {};
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}
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addsubmenu(
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text: string,
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onclick: (this: x, arg: y, e: MouseEvent) => void,
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img = null,
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shown: (this: x, arg: y) => boolean = (_) => true,
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enabled: (this: x, arg: y) => boolean = (_) => true
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) {
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this.buttons.push([text, onclick, img, shown, enabled, "submenu"]);
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return {};
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}
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private makemenu(x: number, y: number, addinfo: x, other: y) {
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const div = document.createElement("div");
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div.classList.add("contextmenu", "flexttb");
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let visibleButtons = 0;
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for (const thing of this.buttons) {
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if (!thing[3].bind(addinfo).call(addinfo, other)) continue;
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visibleButtons++;
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const intext = document.createElement("button");
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intext.disabled = !thing[4].bind(addinfo).call(addinfo, other);
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intext.classList.add("contextbutton");
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intext.textContent = thing[0];
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console.log(thing);
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if (thing[5] === "button" || thing[5] === "submenu") {
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intext.onclick = thing[1].bind(addinfo, other);
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}
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div.appendChild(intext);
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}
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if (visibleButtons == 0) return;
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if (Contextmenu.currentmenu != "") {
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Contextmenu.currentmenu.remove();
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}
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div.style.top = y + "px";
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div.style.left = x + "px";
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document.body.appendChild(div);
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Contextmenu.keepOnScreen(div);
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console.log(div);
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Contextmenu.currentmenu = div;
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return this.div;
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}
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bindContextmenu(obj: HTMLElement, addinfo: x, other: y) {
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const func = (event: MouseEvent) => {
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event.preventDefault();
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event.stopImmediatePropagation();
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this.makemenu(event.clientX, event.clientY, addinfo, other);
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};
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obj.addEventListener("contextmenu", func);
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return func;
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}
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static keepOnScreen(obj: HTMLElement) {
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const html = document.documentElement.getBoundingClientRect();
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const docheight = html.height;
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const docwidth = html.width;
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const box = obj.getBoundingClientRect();
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console.log(box, docheight, docwidth);
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if (box.right > docwidth) {
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console.log("test");
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obj.style.left = docwidth - box.width + "px";
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}
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if (box.bottom > docheight) {
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obj.style.top = docheight - box.height + "px";
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}
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}
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}
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Contextmenu.setup();
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export { Contextmenu };
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