update mxwm and zcom

app/mxwm/startz.js

@@ -1,47 +1,126 @@
 eval(readFile("/app/zcom.js"))
 
-async function main(args) {
-    enableGraphics()
+const headerHeight = 32;
 
-    window.mxwm_windows = []
-
-    let ctx = getGraphics()
-
-    let run = true
-
-    setTimeout(async () => {
-        setStdinFlag(SILENT_STDIN)
-        setStdinFlag(ENABLE_STDIN)
-
-        while (true) {
-            let event = await pollStdinEvent()
-
-            console.log(event)
-
-            if (event.type == "key") {
-                if (event.key == "Escape") {
-                    run = false
-                    break
-                }
-            }
-        }
-        
-        setStdinFlag(RENDER_STDIN)
-        setStdinFlag(DISABLE_STDIN)
-    })
-
-    while (run) {
-        ctx.fillStyle = "black"
+async function drawScreen(ctx) {
+    ctx.fillStyle = "darkcyan"
     ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height)
     
     for (const win of window.mxwm_windows) {
+        drawWindowDecorations(ctx, win.x, win.y, win.width, win.height, win.title)
         ctx.drawImage(win.canvas, win.x, win.y);
     }
+}
 
-        await new Promise(resolve => setTimeout(resolve, 1000 / 60))
+async function drawWindowDecorations(ctx, x, y, width, height, title) {
+    const borderRadius = 8;
+    const borderWidth = 1;
+    const buttonRadius = 6;
+    const buttonSpacing = 8;
+
+    const outerX = x - borderWidth;
+    const outerY = y - headerHeight - borderWidth;
+    const outerWidth = width + borderWidth * 2;
+    const outerHeight = height + headerHeight + borderWidth * 2;
+
+    ctx.fillStyle = "#f4f4f4";
+    ctx.fillRect(outerX, outerY, outerWidth, outerHeight)
+
+    ctx.fillStyle = "#222";
+    ctx.font = "bold 14px sans-serif";
+    ctx.textBaseline = "middle";
+    ctx.textAlign = "left";
+    ctx.fillText(title, outerX + 12, outerY + headerHeight / 2);
+}
+
+async function onStart(screen_ctx) {
+    let wid, ctx = createWindow({
+        "title": "zterm",
+        "width": 500,
+        "height": 500,
+        "x": 50,
+        "y": 50
+    })
+
+    ctx.fillStyle = "cyan"
+    ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height)
+}
+
+async function onKeyDown(ctx, key) {
+    if (key == "Escape") {
+        disableGraphics()
+    }
+}
+
+async function onKeyUp(ctx, key) {
+}
+
+let dragging_window = null
+
+function isMouseOnHeader(window) {
+    return window.x < mouse_position[0] && mouse_position[0] < window.x + window.width &&
+           window.y - headerHeight < mouse_position[1] && mouse_position[1] < window.y
+}
+
+async function onMouseDown(ctx, button) {
+    for (let window of listWindows()) {
+        if (isMouseOnHeader(window)) {
+            dragging_window = window["wid"]
+        }
+    }
+}
+
+async function onMouseUp(ctx, button) {
+    let window = getWindow(dragging_window)
+    
+    if (isMouseOnHeader(window)) {
+        dragging_window = null
+    }
+}
+
+let mouse_position = [0, 0]
+
+async function onMouseMove(ctx, x, y) {
+    if (dragging_window != null) { 
+        let window = getWindow(dragging_window)
+        if (isMouseOnHeader(window)) {
+            window.x += x - mouse_position[0]
+            window.y += y - mouse_position[1]
+        }
     }
     
-    disableGraphics()
+    mouse_position = [x, y]   
+}
+
+async function main(args) {
+    let ctx = null
+    
+    enableGraphics({
+        "onmousemove": (x, y) => onMouseMove(ctx, x, y),
+        "onmousedown": (btn) => onMouseDown(ctx, btn),
+        "onmouseup": (btn) => onMouseUp(ctx, btn),
+        "onkeydown": (key) => onKeyDown(ctx, key),
+        "onkeyup": (key) => onKeyUp(ctx, key)
+    })
+
+    window.mxwm_windows = []
+
+    ctx = getGraphics()
+
+    await onStart()
+
+    let drawLoop = () => {
+        if (graphics_canvas != null) {
+            drawScreen(ctx)
+            requestAnimationFrame(drawLoop)
+        }
+    }
+
+    drawLoop()
+
+    while (graphics_canvas != null) {
+        await new Promise(res => setTimeout(res, 1000))
+    }
     
     return 0
 }

app/mxwm/zcom.js

@@ -6,14 +6,21 @@ function hasGraphicsImplementation() {
 function createWindow(options) {
   let canvas = document.createElement("canvas")
 
+  let wid = Date.now().toString() + Math.round(Math.random() * 100).toString()
+
   let win = {
     "title": options["title"],
     "x": options["x"] || 0,
     "y": options["y"] || 0,
     "width": options["width"] || options["w"] || 200,
     "height": options["height"] || options["h"] || 200,
-    "wid": Date.now().toString() + Math.round(Math.random() * 100).toString(),
-    "on_signal": options["on_signal"] || options["callback"] || (o => {})
+    "wid": wid,
+    "onsignal": options["onsignal"] || (o => {}),
+    "onkeydown": options["onkeydown"] || (o => {}),
+    "onkeyup": options["onkeyup"] || (o => {}),
+    "onmousedown": options["onmousedown"] || (o => {}),
+    "onmouseup": options["onmouseup"] || (o => {}),
+    "onmousemove": options["onmousemove"] || ((x,y) => {}),
   }
 
   canvas.width = win["width"].toString()
@@ -29,6 +36,8 @@ function createWindow(options) {
   } else {
     window.mxwm_windows = [ win ]
   }
+
+  return (wid, context)
 }
 
 function moveWindow(wid, x, y, w, h) {
@@ -53,7 +62,7 @@ function signalWindow(wid, signal) {
 
   for (const win of window.mxwm_windows) {
     if (win["wid"] == wid) {
-      win.on_signal(signal)
+      win.onsignal(signal)
     }
   }
 }

sys/graphics.js

@@ -7,6 +7,7 @@ function enableGraphics(options={}) {
     graphics_canvas.id = "graphics"
     graphics_canvas.width = window.innerWidth.toString()
     graphics_canvas.height = window.innerHeight.toString()
+    graphics_canvas.setAttribute("tabindex", "0")
 
     if ("onmousemove" in options) {
         graphics_canvas.onmousemove = e => {
@@ -48,6 +49,8 @@ function enableGraphics(options={}) {
     })
     
     document.body.appendChild(graphics_canvas)
+
+    graphics_canvas.focus()
 }
 
 function getGraphics() {

sys/terminal.js

@@ -152,6 +152,8 @@ function stripHtml(html) {
     return tmp.innerHTML;
 }
 
+var clipboard_collect = document.getElementById("clipboard-collect")
+
 document.onkeydown = (e) => {
     let key = e.key;
     if (!disable_stdin) {
@@ -174,10 +176,10 @@ document.onkeydown = (e) => {
     }
 }
 
-var clipboard_collect = document.getElementById("clipboard-collect")
-
 setInterval(() => {
+    if (graphics_canvas == null) {
         clipboard_collect.focus()
+    }
 });
 
 clipboard_collect.onpaste = (e) => {