port the old jsplayer

1 files changed, 120 insertions, 0 deletions

diff --git a/web/script/player/mod.ts b/web/script/player/mod.ts
new file mode 100644
index 0000000..20f47ca
--- /dev/null
+++ b/web/script/player/mod.ts
@@ -0,0 +1,120 @@
+import { OVar, e } from "../jshelper/mod.ts";
+
+
+
+document.addEventListener("DOMContentLoaded", () => {
+    if (document.body.classList.contains("player")) {
+        const node_id = globalThis.location.pathname.split("/")[2];
+        const main = document.getElementById("main")!;
+        initialize_player(main, node_id)
+    }
+})
+
+function initialize_player(el: HTMLElement, node_id: string) {
+    el.innerHTML = "" // clear the body
+
+    const buffering_state = new OVar(true)
+    const playing_state = new OVar(false)
+    const current_time = new OVar(0)
+    const remaining_time = new OVar(0)
+
+    const vel = e("video")
+    vel.src = `/n/${node_id}/stream?tracks=1&tracks=0&format=matroska&webm=true`
+
+    const toggle_playing = () => vel.paused ? vel.play() : vel.pause()
+
+
+    let pri_current: HTMLElement;
+    let pri: HTMLElement;
+    const controls = e("div", { class: "jsp-controls" },
+        playing_state.map(playing => e("button", playing ? "||" : "|>", { onclick: toggle_playing })),
+        e("p", { class: "jsp-status" },
+            current_time.map(v => e("span", display_time(v))), e("br"),
+            remaining_time.map(v => e("span", display_time(v)))
+        ),
+        pri = e("div", { class: "jsp-pri" }, pri_current = e("div", { class: "jsp-pri-current" })),
+        e("button", "X", {
+            onclick() {
+                if (document.fullscreenElement) document.exitFullscreen()
+                else document.documentElement.requestFullscreen()
+            }
+        })
+    )
+
+
+    vel.onloadedmetadata = () => {
+
+    }
+    vel.ondurationchange = () => {
+
+    }
+    vel.ontimeupdate = () => {
+        remaining_time.value = vel.currentTime - vel.duration;
+        current_time.value = vel.currentTime
+        pri_current.style.width = (vel.currentTime / vel.duration * 100) + "%"
+    }
+    vel.onplay = () => {
+        buffering_state.value = false;
+    }
+    vel.onwaiting = () => {
+        buffering_state.value = true;
+    }
+    vel.onplaying = () => {
+        playing_state.value = true;
+    }
+    vel.onpause = () => {
+        playing_state.value = false
+    }
+
+    mouse_idle(vel, 1000, idle => {
+        controls.style.opacity = idle ? "0" : "1"
+        vel.style.cursor = idle ? "none" : "default"
+    })
+
+    vel.addEventListener("click", toggle_playing)
+    pri.addEventListener("mousedown", ev => {
+        const r = pri.getBoundingClientRect()
+        const p = (ev.clientX - r.left) / (r.right - r.left)
+        vel.currentTime = p * vel.duration
+    })
+    document.body.addEventListener("keydown", k => {
+        if (k.code == "Period") vel["seekToNextFrame" as "play"]()
+        else if (k.code == "Space") toggle_playing()
+        else if (k.code == "ArrowLeft") vel.currentTime -= 5
+        else if (k.code == "ArrowRight") vel.currentTime += 5
+        else if (k.code == "ArrowUp") vel.currentTime -= 60
+        else if (k.code == "ArrowDown") vel.currentTime += 60
+        else return;
+        k.preventDefault()
+    })
+
+    el.append(e("div", { class: "jsp" },
+        vel,
+        controls,
+    ))
+}
+
+function mouse_idle(e: HTMLElement, timeout: number, cb: (b: boolean) => unknown) {
+    let ct: number;
+    let idle = false
+    e.onmouseleave = () => { clearTimeout(ct) }
+    e.onmousemove = () => {
+        clearTimeout(ct)
+        if (idle) {
+            idle = false
+            cb(idle)
+        }
+        ct = setTimeout(() => {
+            idle = true
+            cb(idle)
+        }, timeout)
+    }
+}
+function display_time(t: number): string {
+    if (t < 0) return "-" + display_time(-t)
+    let h = 0, m = 0, s = 0;
+    while (t > 3600) t -= 3600, h++;
+    while (t > 60) t -= 60, m++;
+    while (t > 1) t -= 1, s++;
+    return (h ? h + "h" : "") + (m ? m + "m" : "") + (s ? s + "s" : "")
+}