Files
noVNC/tests/viewport.html
Solly Ross 15ce2f71eb Use textContent instead of innerHTML
Previously, setting `innerHTML` was used to display the statuses.  These
could include content communicated from the remote VNC server, allowing
the remove VNC server to inject HTML into the noVNC page.

This commit switches all uses of `innerHTML` to use `textContent`, which
is not vulnerable to the HTML injection.
2017-01-12 11:58:22 -05:00

204 lines
6.6 KiB
HTML

<!DOCTYPE html>
<html>
<head><title>Viewport Test</title>
<link rel="stylesheet" href="viewport.css">
<!--
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
-->
<meta name=viewport content="width=device-width, initial-scale=1.0, user-scalable=no">
</head>
<body>
<div class="flex-layout">
<div>
Canvas:
<input id="move-selector" type="button" value="Move"
onclick="toggleMove();">
<br>
</div>
<div class="container flex-box">
<canvas id="canvas" class="canvas">
Canvas not supported.
</canvas>
<br>
</div>
<div>
<br>
Results:<br>
<textarea id="messages" style="font-size: 9;" cols=80 rows=8></textarea>
</div>
</div>
</body>
<!--
<script type='text/javascript'
src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
-->
<script src="../include/util.js"></script>
<script src="../include/webutil.js"></script>
<script src="../include/base64.js"></script>
<script src="../include/keysymdef.js"></script>
<script src="../include/keyboard.js"></script>
<script src="../include/input.js"></script>
<script src="../include/display.js"></script>
<script>
var msg_cnt = 0, iterations,
penDown = false, doMove = false,
inMove = false, lastPos = {},
padW = 0, padH = 0,
display, ctx, keyboard, mouse;
var newline = "\n";
if (Util.Engine.trident) {
var newline = "<br>\n";
}
function message(str) {
console.log(str);
cell = $D('messages');
cell.textContent += msg_cnt + ": " + str + newline;
cell.scrollTop = cell.scrollHeight;
msg_cnt++;
}
function mouseButton(x, y, down, bmask) {
//msg = 'mouse x,y: ' + x + ',' + y + ' down: ' + down;
//msg += ' bmask: ' + bmask;
//message(msg);
if (doMove) {
if (down && !inMove) {
inMove = true;
lastPos = {'x': x, 'y': y};
} else if (!down && inMove) {
inMove = false;
//dirtyRedraw();
}
return;
}
if (down && ! penDown) {
penDown = true;
ctx.beginPath();
ctx.moveTo(x, y);
} else if (!down && penDown) {
penDown = false;
ctx.closePath();
}
}
function mouseMove(x, y) {
var deltaX, deltaY;
if (inMove) {
//deltaX = x - lastPos.x; // drag viewport
deltaX = lastPos.x - x; // drag frame buffer
//deltaY = y - lastPos.y; // drag viewport
deltaY = lastPos.y - y; // drag frame buffer
lastPos = {'x': x, 'y': y};
display.viewportChangePos(deltaX, deltaY);
return;
}
if (penDown) {
ctx.lineTo(x, y);
ctx.stroke();
}
}
function dirtyRedraw() {
if (inMove) {
// Wait for user to stop moving viewport
return;
}
var d = display.getCleanDirtyReset();
for (i = 0; i < d.dirtyBoxes.length; i++) {
//showBox(d.dirtyBoxes[i], "dirty[" + i + "]: ");
drawArea(d.dirtyBoxes[i]);
}
}
function drawArea(b) {
var data = [], pixel, x, y;
//message("draw "+b.x+","+b.y+" ("+b.w+","+b.h+")");
for (var i = 0; i < b.w; i++) {
x = b.x + i;
for (var j = 0; j < b.h; j++) {
y = b.y + j;
pixel = (j * b.w * 4 + i * 4);
data[pixel + 0] = ((x * y) / 13) % 256;
data[pixel + 1] = ((x * y) + 392) % 256;
data[pixel + 2] = ((x + y) + 256) % 256;
data[pixel + 3] = 255;
}
}
//message("i: " + i + ", j: " + j + ", pixel: " + pixel);
display.blitImage(b.x, b.y, b.w, b.h, data, 0);
}
function toggleMove() {
if (doMove) {
doMove = false;
$D('move-selector').style.backgroundColor = "";
$D('move-selector').style.color = "";
} else {
doMove = true;
$D('move-selector').style.backgroundColor = "black";
$D('move-selector').style.color = "lightgray";
}
}
function detectPad() {
var c = $D('canvas'), p = c.parentNode;
c.width = 10;
c.height = 10;
padW = c.offsetWidth - 10;
padH = c.offsetHeight - 10;
message("padW: " + padW + ", padH: " + padH);
}
function doResize() {
var p = $D('canvas').parentNode;
message("doResize1: [" + (p.offsetWidth - padW) +
"," + (p.offsetHeight - padH) + "]");
display.viewportChangeSize(p.offsetWidth - padW, p.offsetHeight - padH);
/*
var pos, new_w, new_h;pos
pos = Util.getPosition($D('canvas').parentNode);
new_w = window.innerWidth - pos.x;
new_h = window.innerHeight - pos.y;
display.viewportChangeSize(new_w, new_h);
*/
}
window.onload = function() {
detectPad();
display = new Display({'target': $D('canvas')});
display.resize(1600, 1024);
display.set_viewport(true);
ctx = display.get_context();
mouse = new Mouse({'target': $D('canvas'),
'onMouseButton': mouseButton,
'onMouseMove': mouseMove});
mouse.grab();
Util.addEvent(window, 'resize', doResize);
// Shrink viewport for first resize call so that the
// scrollbars are disabled
display.viewportChangeSize(10, 10);
setTimeout(doResize, 1);
setInterval(dirtyRedraw, 50);
message("Display initialized");
};
</script>
</html>