gtk/gdk/broadway/broadway.js
2011-04-07 10:03:17 +02:00

942 lines
24 KiB
JavaScript

/* Helper functions for debugging */
var logDiv = null;
function log(str) {
if (!logDiv) {
logDiv = document.createElement('div');
document.body.appendChild(logDiv);
logDiv.style["position"] = "absolute";
logDiv.style["right"] = "0px";
}
logDiv.appendChild(document.createTextNode(str));
logDiv.appendChild(document.createElement('br'));
}
var base64Values = [
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255,
255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255
]
function base64_8(str, index) {
var v =
(base64Values[str.charCodeAt(index)]) +
(base64Values[str.charCodeAt(index+1)] << 6);
return v;
}
function base64_16(str, index) {
var v =
(base64Values[str.charCodeAt(index)]) +
(base64Values[str.charCodeAt(index+1)] << 6) +
(base64Values[str.charCodeAt(index+2)] << 12);
return v;
}
function base64_16s(str, index) {
var v = base64_16(str, index);
if (v > 32767)
return v - 65536;
else
return v;
}
function base64_24(str, index) {
var v =
(base64Values[str.charCodeAt(index)]) +
(base64Values[str.charCodeAt(index+1)] << 6) +
(base64Values[str.charCodeAt(index+2)] << 12) +
(base64Values[str.charCodeAt(index+3)] << 18);
return v;
}
function base64_32(str, index) {
var v =
(base64Values[str.charCodeAt(index)]) +
(base64Values[str.charCodeAt(index+1)] << 6) +
(base64Values[str.charCodeAt(index+2)] << 12) +
(base64Values[str.charCodeAt(index+3)] << 18) +
(base64Values[str.charCodeAt(index+4)] << 24) +
(base64Values[str.charCodeAt(index+5)] << 30);
return v;
}
function createXHR()
{
try { return new XMLHttpRequest(); } catch(e) {}
try { return new ActiveXObject("Msxml2.XMLHTTP.6.0"); } catch (e) {}
try { return new ActiveXObject("Msxml2.XMLHTTP.3.0"); } catch (e) {}
try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {}
try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
return null;
}
/* This resizes the window so the *inner* size is the specified size */
function resizeBrowserWindow(window, w, h) {
var innerW = window.innerWidth;
var innerH = window.innerHeight;
var outerW = window.outerWidth;
var outerH = window.outerHeight;
window.resizeTo(w + outerW - innerW,
h + outerH - innerH);
}
function resizeCanvas(canvas, w, h)
{
/* Canvas resize clears the data, so we need to save it first */
var tmpCanvas = canvas.ownerDocument.createElement("canvas");
tmpCanvas.width = canvas.width;
tmpCanvas.height = canvas.height;
var tmpContext = tmpCanvas.getContext("2d");
tmpContext.globalCompositeOperation = "copy";
tmpContext.drawImage(canvas, 0, 0, tmpCanvas.width, tmpCanvas.height);
canvas.width = w;
canvas.height = h;
var context = canvas.getContext("2d");
context.globalCompositeOperation = "copy";
context.drawImage(tmpCanvas, 0, 0, tmpCanvas.width, tmpCanvas.height);
}
var useToplevelWindows = false;
var toplevelWindows = [];
var grab = new Object();
grab.window = null;
grab.ownerEvents = false;
grab.implicit = false;
var lastSerial = 0;
var lastX = 0;
var lastY = 0;
var lastState;
var lastTimeStamp = 0;
var realWindowWithMouse = 0;
var windowWithMouse = 0;
var surfaces = {};
var outstandingCommands = new Array();
var inputSocket = null;
var frameSizeX = -1;
var frameSizeY = -1;
var GDK_CROSSING_NORMAL = 0;
var GDK_CROSSING_GRAB = 1;
var GDK_CROSSING_UNGRAB = 2;
// GdkModifierType
var GDK_SHIFT_MASK = 1 << 0;
var GDK_LOCK_MASK = 1 << 1;
var GDK_CONTROL_MASK = 1 << 2;
var GDK_MOD1_MASK = 1 << 3;
var GDK_MOD2_MASK = 1 << 4;
var GDK_MOD3_MASK = 1 << 5;
var GDK_MOD4_MASK = 1 << 6;
var GDK_MOD5_MASK = 1 << 7;
var GDK_BUTTON1_MASK = 1 << 8;
var GDK_BUTTON2_MASK = 1 << 9;
var GDK_BUTTON3_MASK = 1 << 10;
var GDK_BUTTON4_MASK = 1 << 11;
var GDK_BUTTON5_MASK = 1 << 12;
var GDK_SUPER_MASK = 1 << 26;
var GDK_HYPER_MASK = 1 << 27;
var GDK_META_MASK = 1 << 28;
var GDK_RELEASE_MASK = 1 << 30;
function getButtonMask (button) {
if (button == 1)
return GDK_BUTTON1_MASK;
if (button == 2)
return GDK_BUTTON2_MASK;
if (button == 3)
return GDK_BUTTON3_MASK;
if (button == 4)
return GDK_BUTTON4_MASK;
if (button == 5)
return GDK_BUTTON5_MASK;
return 0;
}
function flushSurface(surface)
{
var commands = surface.drawQueue;
surface.queue = [];
var context = surface.context;
var i = 0;
for (i = 0; i < commands.length; i++) {
var cmd = commands[i];
switch (cmd.op) {
case 'i': // put image data surface
context.globalCompositeOperation = "source-over";
context.drawImage(cmd.img, cmd.x, cmd.y);
break;
case 'b': // copy rects
context.save();
context.beginPath();
var minx;
var miny;
var maxx;
var maxy;
for (var j = 0; j < cmd.rects.length; j++) {
var rect = cmd.rects[j];
context.rect(rect.x, rect.y, rect.w, rect.h);
if (j == 0) {
minx = rect.x;
miny = rect.y;
maxx = rect.x + rect.w;
maxy = rect.y + rect.h;
} else {
if (rect.x < minx)
minx = rect.x;
if (rect.y < miny)
miny = rect.y;
if (rect.x + rect.w > maxx)
maxx = rect.x + rect.w;
if (rect.y + rect.h > maxy)
maxy = rect.y + rect.h;
}
}
context.clip();
context.globalCompositeOperation = "copy";
context.drawImage(context.canvas,
minx - cmd.dx, miny - cmd.dy, maxx - minx, maxy - miny,
minx, miny, maxx - minx, maxy - miny);
context.restore();
break;
default:
alert("Unknown drawing op " + cmd.op);
}
}
}
function ensureSurfaceInDocument(surface, doc)
{
if (surface.document != doc) {
var oldCanvas = surface.canvas;
var canvas = doc.importNode(oldCanvas, false);
doc.body.appendChild(canvas);
canvas.surface = surface;
oldCanvas.parentNode.removeChild(oldCanvas);
surface.canvas = canvas;
surface.document = doc;
var context = canvas.getContext("2d");
context.globalCompositeOperation = "source-over";
surface.context = context;
}
}
var windowGeometryTimeout = null;
function updateBrowserWindowGeometry(win) {
if (win.closed)
return;
var surface = win.surface;
var innerW = win.innerWidth;
var innerH = win.innerHeight;
var x = surface.x;
var y = surface.y;
if (frameSizeX > 0) {
x = win.screenX + frameSizeX;
y = win.screenY + frameSizeY;
}
if (x != surface.x || y != surface.y ||
innerW != surface.width || innerH != surface.height) {
var oldX = surface.x;
var oldY = surface.y;
surface.x = x;
surface.y = y;
if (surface.width != innerW || surface.height != innerH)
resizeCanvas(surface.canvas, innerW, innerH);
surface.width = innerW;
surface.height = innerH;
sendInput ("w", [surface.id, surface.x, surface.y, surface.width, surface.height]);
for (id in surfaces) {
if (surfaces[id].transientToplevel != null && surfaces[id].transientToplevel == surface) {
var childSurface = surfaces[id];
childSurface.x += surface.x - oldX;
childSurface.y += surface.y - oldY;
sendInput ("w", [childSurface.id, childSurface.x, childSurface.y, childSurface.width, childSurface.height]);
}
}
}
}
function browserWindowClosed(win) {
var surface = win.surface;
sendInput ("W", [surface.id]);
for (id in surfaces) {
if (surfaces[id].transientToplevel != null && surfaces[id].transientToplevel == surface) {
var childSurface = surfaces[id];
sendInput ("W", [childSurface.id]);
}
}
}
function registerWindow(win)
{
toplevelWindows.push(win);
win.onresize = function(ev) { updateBrowserWindowGeometry(ev.target); };
if (!windowGeometryTimeout)
windowGeometryTimeout = setInterval(function () { toplevelWindows.forEach(updateBrowserWindowGeometry); }, 2000);
win.onunload = function(ev) { browserWindowClosed(ev.target.defaultView); };
}
function unregisterWindow(win)
{
var i = toplevelWindows.indexOf(win);
if (i >= 0)
toplevelWindows.splice(i, 1);
if (windowGeometryTimeout && toplevelWindows.length == 0) {
clearInterval(windowGeometryTimeout);
windowGeometryTimeout = null;
}
}
function getTransientToplevel(surface)
{
while (surface.transientParent != 0) {
surface = surfaces[surface.transientParent];
if (surface.window)
return surface;
}
return null;
}
function cmdCreateSurface(id, x, y, width, height, isTemp)
{
var surface = { id: id, x: x, y:y, width: width, height: height, isTemp: isTemp };
surface.drawQueue = [];
surface.transientParent = 0;
surface.visible = false;
surface.window = null;
surface.document = document;
surface.transientToplevel = null;
var canvas = document.createElement("canvas");
canvas.width = width;
canvas.height = height;
canvas.surface = surface;
canvas.style["position"] = "absolute";
canvas.style["left"] = "0px";
canvas.style["top"] = "0px";
canvas.style["display"] = "none";
document.body.appendChild(canvas);
surface.canvas = canvas;
var context = canvas.getContext("2d");
context.globalCompositeOperation = "source-over";
surface.context = context;
surfaces[id] = surface;
}
function cmdShowSurface(id)
{
var surface = surfaces[id];
if (surface.visible)
return;
surface.visible = true;
var xOffset = surface.x;
var yOffset = surface.y;
if (useToplevelWindows) {
var doc = document;
if (!surface.isTemp) {
var win = window.open('','_blank',
'width='+surface.width+',height='+surface.height+
',left='+surface.x+',top='+surface.y+',screenX='+surface.x+',screenY='+surface.y+
',location=no,menubar=no,scrollbars=no,toolbar=no');
win.surface = surface;
registerWindow(win);
doc = win.document;
doc.open();
doc.write("<body></body>");
setupDocument(doc);
surface.window = win;
xOffset = 0;
yOffset = 0;
} else {
surface.transientToplevel = getTransientToplevel(surface);
if (surface.transientToplevel) {
doc = surface.transientToplevel.window.document;
xOffset = surface.x - surface.transientToplevel.x;
yOffset = surface.y - surface.transientToplevel.y;
}
}
ensureSurfaceInDocument(surface, doc);
}
surface.canvas.style["position"] = "absolute";
surface.canvas.style["left"] = xOffset + "px";
surface.canvas.style["top"] = yOffset + "px";
surface.canvas.style["display"] = "inline";
}
function cmdHideSurface(id)
{
var surface = surfaces[id];
if (!surface.visible)
return;
surface.visible = false;
surface.canvas.style["display"] = "none";
// Import the canvas into the main document
ensureSurfaceInDocument(surface, document);
if (surface.window) {
unregisterWindow(surface.window);
surface.window.close();
surface.window = null;
}
}
function cmdSetTransientFor(id, parentId)
{
var surface = surfaces[id];
if (surface.transientParent == parentId)
return;
surface.transientParent = parentId;
if (surface.visible && surface.isTemp) {
alert("TODO: move temps between transient parents when visible");
}
}
function cmdDeleteSurface(id)
{
var canvas = surfaces[id].canvas;
delete surfaces[id];
canvas.parentNode.removeChild(canvas);
}
function cmdMoveSurface(id, x, y)
{
var surface = surfaces[id];
surface.x = x;
surface.y = y;
if (surface.visible) {
if (surface.window) {
/* TODO: This moves the outer frame position, we really want the inner position.
* However this isn't *strictly* invalid, as any WM could have done whatever it
* wanted with the positioning of the window.
*/
//surface.window.moveTo(surface.x, surface.y);
} else {
var xOffset = surface.x;
var yOffset = surface.y;
var transientToplevel = getTransientToplevel(surface);
if (transientToplevel) {
xOffset = surface.x - transientToplevel.x;
yOffset = surface.y - transientToplevel.y;
}
surface.canvas.style["left"] = xOffset + "px";
surface.canvas.style["top"] = yOffset + "px";
}
}
}
function cmdResizeSurface(id, w, h)
{
var surface = surfaces[id];
surface.width = w;
surface.height = h;
/* Flush any outstanding draw ops before changing size */
flushSurface(surface);
resizeCanvas(surface.canvas, w, h);
if (surface.window) {
resizeBrowserWindow(surface.window, w, h);
}
}
function cmdFlushSurface(id)
{
flushSurface(surfaces[id]);
}
function cmdGrabPointer(id, ownerEvents)
{
doGrab(id, ownerEvents, false);
sendInput ("g", []);
}
function cmdUngrabPointer()
{
sendInput ("u", []);
grab.window = null;
}
function handleCommands(cmdObj)
{
var cmd = cmdObj.data;
var i = cmdObj.pos;
while (i < cmd.length) {
var command = cmd[i++];
lastSerial = base64_32(cmd, i);
i = i + 6;
switch (command) {
case 's': // create new surface
var id = base64_16(cmd, i);
i = i + 3;
var x = base64_16(cmd, i);
i = i + 3;
var y = base64_16(cmd, i);
i = i + 3;
var w = base64_16(cmd, i);
i = i + 3;
var h = base64_16(cmd, i);
i = i + 3;
var isTemp = cmd[i] == '1';
i = i + 1;
cmdCreateSurface(id, x, y, w, h, isTemp);
break;
case 'S': // Show a surface
var id = base64_16(cmd, i);
i = i + 3;
cmdShowSurface(id);
break;
case 'H': // Hide a surface
var id = base64_16(cmd, i);
i = i + 3;
cmdHideSurface(id);
break;
case 'p': // Set transient parent
var id = base64_16(cmd, i);
i = i + 3;
var parentId = base64_16(cmd, i);
i = i + 3;
cmdSetTransientFor(id, parentId);
break;
case 'd': // Delete surface
var id = base64_16(cmd, i);
i = i + 3;
cmdDeleteSurface(id);
break;
case 'm': // Move a surface
var id = base64_16(cmd, i);
i = i + 3;
var x = base64_16(cmd, i);
i = i + 3;
var y = base64_16(cmd, i);
i = i + 3;
cmdMoveSurface(id, x, y);
break;
case 'r': // Resize a surface
var id = base64_16(cmd, i);
i = i + 3;
var w = base64_16(cmd, i);
i = i + 3;
var h = base64_16(cmd, i);
i = i + 3;
cmdResizeSurface(id, w, h);
break;
case 'i': // Put image data surface
var q = new Object();
q.op = 'i';
q.id = base64_16(cmd, i);
i = i + 3;
q.x = base64_16(cmd, i);
i = i + 3;
q.y = base64_16(cmd, i);
i = i + 3;
var size = base64_32(cmd, i);
i = i + 6;
var url = cmd.slice(i, i + size);
i = i + size;
q.img = new Image();
q.img.src = url;
surfaces[q.id].drawQueue.push(q);
if (!q.img.complete) {
cmdObj.pos = i;
q.img.onload = function() { handleOutstanding(); };
return false;
}
break;
case 'b': // Copy rects
var q = new Object();
q.op = 'b';
q.id = base64_16(cmd, i);
i = i + 3;
var nrects = base64_16(cmd, i);
i = i + 3;
q.rects = [];
for (var r = 0; r < nrects; r++) {
var rect = new Object();
rect.x = base64_16(cmd, i);
i = i + 3;
rect.y = base64_16(cmd, i);
i = i + 3;
rect.w = base64_16(cmd, i);
i = i + 3;
rect.h = base64_16(cmd, i);
i = i + 3;
q.rects.push (rect);
}
q.dx = base64_16s(cmd, i);
i = i + 3;
q.dy = base64_16s(cmd, i);
i = i + 3;
surfaces[q.id].drawQueue.push(q);
break;
case 'f': // Flush surface
var id = base64_16(cmd, i);
i = i + 3;
cmdFlushSurface(id);
break;
case 'g': // Grab
var id = base64_16(cmd, i);
i = i + 3;
var ownerEvents = cmd[i++] == '1';
cmdGrabPointer(id, ownerEvents);
break;
case 'u': // Ungrab
cmdUngrabPointer();
break;
default:
alert("Unknown op " + command);
}
}
return true;
}
function handleOutstanding()
{
while (outstandingCommands.length > 0) {
var cmd = outstandingCommands.shift();
if (!handleCommands(cmd)) {
outstandingCommands.unshift(cmd);
return;
}
}
}
function handleLoad(event)
{
var cmdObj = {};
cmdObj.data = event.target.responseText;
cmdObj.pos = 0;
outstandingCommands.push(cmdObj);
if (outstandingCommands.length == 1) {
handleOutstanding();
}
}
function getSurfaceId(ev) {
var surface = ev.target.surface;
if (surface != undefined)
return surface.id;
return 0;
}
function sendInput(cmd, args)
{
if (inputSocket != null) {
inputSocket.send(cmd + ([lastSerial, lastTimeStamp].concat(args)).join(","));
}
}
function getPositionsFromAbsCoord(absX, absY, relativeId) {
var res = Object();
res.rootX = absX;
res.rootY = absY;
res.winX = absX;
res.winY = absY;
if (relativeId != 0) {
var surface = surfaces[relativeId];
res.winX = res.winX - surface.x;
res.winY = res.winY - surface.y;
}
return res;
}
function getPositionsFromEvent(ev, relativeId) {
var absX, absY;
if (useToplevelWindows) {
absX = ev.screenX;
absY = ev.screenY;
} else {
absX = ev.pageX;
absY = ev.pageY;
}
var res = getPositionsFromAbsCoord(absX, absY, relativeId);
lastX = res.rootX;
lastY = res.rootY;
return res;
}
function getEffectiveEventTarget (id) {
if (grab.window != null) {
if (!grab.ownerEvents)
return grab.window;
if (id == 0)
return grab.window;
}
return id;
}
function updateForEvent(ev) {
lastTimeStamp = ev.timeStamp;
if (ev.target.surface && ev.target.surface.window) {
var win = ev.target.surface.window;
if (ev.screenX != undefined && ev.clientX != undefined) {
var newFrameSizeX = ev.screenX - ev.clientX - win.screenX;
var newFrameSizeY = ev.screenY - ev.clientY - win.screenY;
if (newFrameSizeX != frameSizeX || newFrameSizeY != frameSizeY) {
frameSizeX = newFrameSizeX;
frameSizeY = newFrameSizeY;
toplevelWindows.forEach(updateBrowserWindowGeometry);
}
}
updateBrowserWindowGeometry(win);
}
}
function onMouseMove (ev) {
updateForEvent(ev);
var id = getSurfaceId(ev);
id = getEffectiveEventTarget (id);
var pos = getPositionsFromEvent(ev, id);
sendInput ("m", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
}
function onMouseOver (ev) {
updateForEvent(ev);
var id = getSurfaceId(ev);
realWindowWithMouse = id;
id = getEffectiveEventTarget (id);
var pos = getPositionsFromEvent(ev, id);
windowWithMouse = id;
if (windowWithMouse != 0) {
sendInput ("e", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, GDK_CROSSING_NORMAL]);
}
}
function onMouseOut (ev) {
updateForEvent(ev);
var id = getSurfaceId(ev);
var origId = id;
id = getEffectiveEventTarget (id);
var pos = getPositionsFromEvent(ev, id);
if (id != 0) {
sendInput ("l", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, GDK_CROSSING_NORMAL]);
}
realWindowWithMouse = 0;
windowWithMouse = 0;
}
function doGrab(id, ownerEvents, implicit) {
var pos;
if (windowWithMouse != id) {
if (windowWithMouse != 0) {
pos = getPositionsFromAbsCoord(lastX, lastY, windowWithMouse);
sendInput ("l", [realWindowWithMouse, windowWithMouse, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, GDK_CROSSING_GRAB]);
}
pos = getPositionsFromAbsCoord(lastX, lastY, id);
sendInput ("e", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, GDK_CROSSING_GRAB]);
windowWithMouse = id;
}
grab.window = id;
grab.ownerEvents = ownerEvents;
grab.implicit = implicit;
}
function doUngrab() {
var pos;
if (realWindowWithMouse != windowWithMouse) {
if (windowWithMouse != 0) {
pos = getPositionsFromAbsCoord(lastX, lastY, windowWithMouse);
sendInput ("l", [realWindowWithMouse, windowWithMouse, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, GDK_CROSSING_UNGRAB]);
}
if (realWindowWithMouse != 0) {
pos = getPositionsFromAbsCoord(lastX, lastY, realWindowWithMouse);
sendInput ("e", [realWindowWithMouse, realWindowWithMouse, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, GDK_CROSSING_UNGRAB]);
}
windowWithMouse = realWindowWithMouse;
}
grab.window = null;
}
function onMouseDown (ev) {
updateForEvent(ev);
var id = getSurfaceId(ev);
id = getEffectiveEventTarget (id);
var pos = getPositionsFromEvent(ev, id);
if (grab.window != null)
doGrab (id, false, true);
var button = ev.button + 1;
lastState = lastState | getButtonMask (button);
sendInput ("b", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, button]);
}
function onMouseUp (ev) {
updateForEvent(ev);
var id = getSurfaceId(ev);
id = getEffectiveEventTarget (id);
var pos = getPositionsFromEvent(ev, id);
var button = ev.button + 1;
lastState = lastState & ~getButtonMask (button);
sendInput ("B", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, button]);
if (grab.window != null && grab.implicit)
doUngrab(ev.timeStamp);
}
var lastKeyDown = 0;
function onKeyDown (ev) {
updateForEvent(ev);
var keyCode = ev.keyCode;
if (keyCode != lastKeyDown) {
sendInput ("k", [keyCode]);
lastKeyDown = keyCode;
}
}
function onKeyUp (ev) {
updateForEvent(ev);
var keyCode = ev.keyCode;
sendInput ("K", [keyCode]);
lastKeyDown = 0;
}
function cancelEvent(ev)
{
ev = ev ? ev : window.event;
if (ev.stopPropagation)
ev.stopPropagation();
if (ev.preventDefault)
ev.preventDefault();
ev.cancelBubble = true;
ev.cancel = true;
ev.returnValue = false;
return false;
}
function onMouseWheel(ev)
{
updateForEvent(ev);
ev = ev ? ev : window.event;
var id = getSurfaceId(ev);
var pos = getPositionsFromEvent(ev, id);
var offset = ev.detail ? ev.detail : ev.wheelDelta;
var dir = 0;
if (offset > 0)
dir = 1;
sendInput ("s", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, dir]);
return cancelEvent(ev);
}
function setupDocument(document)
{
document.oncontextmenu = function () { return false; };
document.onmousemove = onMouseMove;
document.onmouseover = onMouseOver;
document.onmouseout = onMouseOut;
document.onmousedown = onMouseDown;
document.onmouseup = onMouseUp;
document.onkeydown = onKeyDown;
document.onkeyup = onKeyUp;
if (document.addEventListener) {
document.addEventListener('DOMMouseScroll', onMouseWheel, false);
document.addEventListener('mousewheel', onMouseWheel, false);
} else if (document.attachEvent) {
element.attachEvent("onmousewheel", onMouseWheel);
}
}
function connect()
{
var xhr = createXHR();
if (xhr) {
if (typeof xhr.multipart == 'undefined') {
alert("Sorry, this example only works in browsers that support multipart.");
return;
}
xhr.multipart = true;
xhr.open("GET", "/output", true);
xhr.onload = handleLoad;
xhr.send(null);
}
if ("WebSocket" in window) {
var loc = window.location.toString().replace("http:", "ws:");
loc = loc.substr(0, loc.lastIndexOf('/')) + "/input";
var ws = new WebSocket(loc, "broadway");
ws.onopen = function() {
inputSocket = ws;
};
ws.onclose = function() {
inputSocket = null;
};
} else {
alert("WebSocket not supported, input will not work!");
}
setupDocument(document);
window.onunload = function (ev) {
for (var i = 0; i < toplevelWindows.length; i++)
toplevelWindows[i].close();
};
}