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swruntime: implement fetch event

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velzie 2024-08-02 21:57:33 -04:00
parent 14a0305bdb
commit 15bc9598c9
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GPG key ID: 048413F95F0DDE1F
9 changed files with 273 additions and 31 deletions
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55
src/client/shared/event.ts
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@ -7,6 +7,14 @@ const realOnEvent = Symbol.for("scramjet original onevent function");
export default function (client: ScramjetClient, self: Self) {
const handlers = {
message: {
_init() {
if (typeof this.data === "object" && "$scramjet$type" in this.data) {
// this is a ctl message
return false;
}
return true;
},
origin() {
if (typeof this.data === "object" && "$scramjet$origin" in this.data)
return this.data.$scramjet$origin;
@ -33,7 +41,12 @@ export default function (client: ScramjetClient, self: Self) {
const type = realEvent.type;
if (type in handlers) {
let handler = handlers[type];
const handler = handlers[type];
if (handler._init) {
if (handler._init.call(realEvent) === false) return;
}
argArray[0] = new Proxy(realEvent, {
get(_target, prop, reciever) {
if (prop in handler) {
@ -54,9 +67,41 @@ export default function (client: ScramjetClient, self: Self) {
client.Proxy("EventTarget.prototype.addEventListener", {
apply(ctx) {
unproxy(ctx, client);
// if (ctx.args[0] === "message" && iswindow) debugger;
if (typeof ctx.args[1] === "function")
ctx.args[1] = wraplistener(ctx.args[1]);
if (typeof ctx.args[1] !== "function") return;
const origlistener = ctx.args[1];
const proxylistener = wraplistener(origlistener);
ctx.args[1] = proxylistener;
let arr = client.eventcallbacks.get(ctx.this);
arr ||= [] as any;
arr.push({
event: ctx.args[0] as string,
originalCallback: origlistener,
proxiedCallback: proxylistener,
});
client.eventcallbacks.set(ctx.this, arr);
},
});
client.Proxy("EventTarget.prototype.removeEventListener", {
apply(ctx) {
unproxy(ctx, client);
if (typeof ctx.args[1] !== "function") return;
const arr = client.eventcallbacks.get(ctx.this);
if (!arr) return;
const i = arr.findIndex(
(e) => e.event === ctx.args[0] && e.originalCallback === ctx.args[1]
);
if (i === -1) return;
arr.splice(i, 1);
client.eventcallbacks.set(ctx.this, arr);
ctx.args[1] = arr[i].proxiedCallback;
},
});
@ -66,8 +111,6 @@ export default function (client: ScramjetClient, self: Self) {
},
});
// TODO: removeEventListener
if (!iswindow) return;
const targets = [self.window, self.HTMLElement.prototype];