optional channels (1)

2 files changed, 92 insertions, 0 deletions

diff --git a/client-web/source/resource/mod.ts b/client-web/source/resource/mod.ts
new file mode 100644
index 0000000..d437260
--- /dev/null
+++ b/client-web/source/resource/mod.ts
@@ -0,0 +1,48 @@
+import { ProvideInfo } from "../../../common/packets.d.ts"
+import { ediv } from "../helper.ts"
+import { log } from "../logger.ts"
+import { User } from "../user/mod.ts"
+import { RemoteUser } from "../user/remote.ts"
+import { TrackResource } from "./track.ts"
+
+export type ChannelState = "running" | "disconnected"
+
+export abstract class Resource {
+    el: HTMLElement = ediv({ class: ["channel"] })
+    constructor(
+        public user: User,
+        public info: ProvideInfo,
+    ) {
+        setTimeout(() => this.update_el(), 0)
+    }
+
+    private _state: ChannelState = "disconnected"
+    get state() { return this._state }
+    set state(value: ChannelState) {
+        if (value != this._state) this.update_el()
+        this._state = value
+    }
+
+    abstract create_element(): HTMLElement
+    abstract create_preview(): HTMLElement
+
+    static create(user: User, info: ProvideInfo): Resource | undefined {
+        if (info.kind == "audio" || info.kind == "video") return new TrackResource(user, info)
+        if (info.kind == "file") throw new Error("");
+        log({ scope: "media", warn: true }, "unknown resource kind")
+    }
+
+    request() {
+        if (!(this.user instanceof RemoteUser)) return
+        this.user.send_to({ request: { id: this.info.id } })
+    }
+    request_stop() {
+        if (!(this.user instanceof RemoteUser)) return
+        this.user.send_to({ request: { id: this.info.id } })
+    }
+
+    update_el() {
+        this.el.innerHTML = ""
+        this.el.append(this.create_element())
+    }
+}
diff --git a/client-web/source/resource/track.ts b/client-web/source/resource/track.ts
new file mode 100644
index 0000000..ee87917
--- /dev/null
+++ b/client-web/source/resource/track.ts
@@ -0,0 +1,44 @@
+import { ProvideInfo } from "../../../common/packets.d.ts";
+import { ebutton } from "../helper.ts";
+import { TrackHandle } from "../track_handle.ts";
+import { User } from "../user/mod.ts";
+import { Resource } from "./mod.ts";
+
+export class TrackResource extends Resource {
+    constructor(user: User, info: ProvideInfo, public track?: TrackHandle) {
+        super(user, info)
+    }
+
+    create_preview(): HTMLElement {
+        return ebutton("Enable", { onclick: () => this.request() })
+    }
+    create_element() {
+        if (!this.track) { return this.create_preview() }
+        const el = document.createElement("div")
+
+        const is_video = this.track.kind == "video"
+        const media_el = is_video ? document.createElement("video") : document.createElement("audio")
+        const stream = new MediaStream([this.track.track])
+        media_el.srcObject = stream
+        media_el.classList.add("media")
+        media_el.autoplay = true
+        media_el.controls = true
+        if (this.track.local) media_el.muted = true
+        el.append(media_el)
+
+        if (this.track.local) {
+            const end_button = document.createElement("button")
+            end_button.textContent = "End"
+            end_button.addEventListener("click", () => {
+                this.track?.end()
+            })
+            el.append(end_button)
+        }
+        this.el.append(el)
+        this.track.addEventListener("ended", () => {
+            media_el.srcObject = null // TODO
+            el.remove()
+        })
+        return el
+    }
+}
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