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MeshCentral/public/scripts/amt-desktop-0.0.2.js
Ylian Saint-Hilaire b8f7fb16ec Added WebM conversion feature to recordings player.
2021-07-04 15:53:51 -07:00

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/**
* @description Remote Desktop
* @author Ylian Saint-Hilaire
* @version v0.0.2g
*/
// Construct a MeshServer object
var CreateAmtRemoteDesktop = function (divid, scrolldiv) {
var obj = {};
obj.canvasid = divid;
obj.CanvasId = Q(divid);
obj.scrolldiv = scrolldiv;
obj.canvas = Q(divid).getContext('2d');
obj.protocol = 2; // KVM
obj.state = 0;
obj.acc = null;
obj.ScreenWidth = 960;
obj.ScreenHeight = 700;
obj.width = 0;
obj.height = 0;
obj.rwidth = 0;
obj.rheight = 0;
obj.bpp = 2; // Bytes per pixel (1 or 2 supported)
obj.useZRLE = true;
obj.showmouse = true;
obj.buttonmask = 0;
obj.localKeyMap = true;
obj.spare = null;
obj.sparew = 0;
obj.spareh = 0;
obj.sparew2 = 0;
obj.spareh2 = 0;
obj.sparecache = {};
obj.ZRLEfirst = 1;
obj.onScreenSizeChange = null;
//obj.onPreDrawImage = null;
obj.frameRateDelay = 0;
// ###BEGIN###{DesktopRotation}
obj.noMouseRotate = false;
obj.rotation = 0;
// ###END###{DesktopRotation}
// ###BEGIN###{DesktopInband}
obj.kvmDataSupported = false;
obj.onKvmData = null;
obj.onKvmDataPending = [];
obj.onKvmDataAck = -1;
obj.holding = false;
obj.lastKeepAlive = Date.now();
// ###END###{DesktopInband}
obj.SwapMouse = false;
obj.mNagleTimer = null; // Mouse motion slowdown timer
obj.mx = 0; // Last mouse x position
obj.my = 0; // Last mouse y position
// ###BEGIN###{DesktopFocus}
obj.ox = -1; // Old mouse x position
obj.oy = -1; // Old mouse y position
obj.focusmode = 0;
// ###END###{DesktopFocus}
// ###BEGIN###{Inflate}
obj.inflate = ZLIB.inflateInit(-15);
// ###END###{Inflate}
obj.xxStateChange = function (newstate) {
if (newstate == 0) {
obj.canvas.fillStyle = '#000000';
obj.canvas.fillRect(0, 0, obj.width, obj.height);
obj.canvas.canvas.width = obj.rwidth = obj.width = 640;
obj.canvas.canvas.height = obj.rheight = obj.height = 400;
QS(obj.canvasid).cursor = 'default';
} else {
QS(obj.canvasid).cursor = obj.showmouse ? 'default' : 'none';
}
}
function arrToStr(arr) { return String.fromCharCode.apply(null, arr); }
function strToArr(str) { var arr = new Uint8Array(str.length); for (var i = 0, j = str.length; i < j; ++i) { arr[i] = str.charCodeAt(i); } return arr }
obj.ProcessBinaryData = function (data) {
// Append to accumulator
if (obj.acc == null) {
obj.acc = new Uint8Array(data);
} else {
var tmp = new Uint8Array(obj.acc.byteLength + data.byteLength);
tmp.set(obj.acc, 0);
tmp.set(new Uint8Array(data), obj.acc.byteLength);
obj.acc = tmp;
}
while ((obj.acc != null) && (obj.acc.byteLength > 0)) {
//console.log('KAcc', obj.state, obj.acc);
var cmdsize = 0, accview = new DataView(obj.acc.buffer);
if ((obj.state == 0) && (obj.acc.byteLength >= 12)) {
// Getting handshake & version
cmdsize = 12;
//if (obj.acc.substring(0, 4) != "RFB ") { return obj.Stop(); }
//var version = parseFloat(obj.acc.substring(4, 11));
//console.log("KVersion: " + version);
obj.state = 1;
obj.send('RFB 003.008\n');
}
else if ((obj.state == 1) && (obj.acc.byteLength >= 1)) {
// Getting security options
cmdsize = obj.acc[0] + 1;
obj.send(String.fromCharCode(1)); // Send the "None" security type. Since we already authenticated using redirection digest auth, we don't need to do this again.
obj.state = 2;
}
else if ((obj.state == 2) && (obj.acc.byteLength >= 4)) {
// Getting security response
cmdsize = 4;
if (accview.getUint32(0) != 0) { return obj.Stop(); }
obj.send(String.fromCharCode(1)); // Send share desktop flag
obj.state = 3;
}
else if ((obj.state == 3) && (obj.acc.byteLength >= 24)) {
// Getting server init
// ###BEGIN###{DesktopRotation}
obj.rotation = 0; // We don't currently support screen init while rotated.
// ###END###{DesktopRotation}
var namelen = accview.getUint32(20);
if (obj.acc.byteLength < 24 + namelen) return;
cmdsize = 24 + namelen;
obj.canvas.canvas.width = obj.rwidth = obj.width = obj.ScreenWidth = accview.getUint16(0);
obj.canvas.canvas.height = obj.rheight = obj.height = obj.ScreenHeight = accview.getUint16(2);
// These are all values we don't really need, we are going to only run in RGB565 or RGB332 and not use the flexibility provided by these settings.
// Makes the javascript code smaller and maybe a bit faster.
/*
obj.xbpp = obj.acc[4];
obj.depth = obj.acc[5];
obj.bigend = obj.acc[6];
obj.truecolor = obj.acc[7];
obj.rmax = ReadShort(obj.acc, 8);
obj.gmax = ReadShort(obj.acc, 10);
obj.bmax = ReadShort(obj.acc, 12);
obj.rsh = obj.acc[14];
obj.gsh = obj.acc[15];
obj.bsh = obj.acc[16];
var name = obj.acc.substring(24, 24 + namelen);
console.log("name: " + name);
console.log("width: " + obj.width + ", height: " + obj.height);
console.log("bits-per-pixel: " + obj.xbpp);
console.log("depth: " + obj.depth);
console.log("big-endian-flag: " + obj.bigend);
console.log("true-colour-flag: " + obj.truecolor);
console.log("rgb max: " + obj.rmax + "," + obj.gmax + "," + obj.bmax);
console.log("rgb shift: " + obj.rsh + "," + obj.gsh + "," + obj.bsh);
*/
// SetEncodings, with AMT we can't omit RAW, must be specified.
// Intel AMT supports encodings: RAW (0), ZRLE (16), Desktop Size (0xFFFFFF21, -223)
var supportedEncodings = '';
if (obj.useZRLE) supportedEncodings += IntToStr(16);
supportedEncodings += IntToStr(0);
// ###BEGIN###{DesktopInband}
supportedEncodings += IntToStr(1092);
// ###END###{DesktopInband}
obj.send(String.fromCharCode(2, 0) + ShortToStr((supportedEncodings.length / 4) + 1) + supportedEncodings + IntToStr(-223)); // Supported Encodings + Desktop Size
// Set the pixel encoding to something much smaller
// obj.send(String.fromCharCode(0, 0, 0, 0, 16, 16, 0, 1) + ShortToStr(31) + ShortToStr(63) + ShortToStr(31) + String.fromCharCode(11, 5, 0, 0, 0, 0)); // Setup 16 bit color RGB565 (This is the default, so we don't need to set it)
if (obj.bpp == 1) obj.send(String.fromCharCode(0, 0, 0, 0, 8, 8, 0, 1) + ShortToStr(7) + ShortToStr(7) + ShortToStr(3) + String.fromCharCode(5, 2, 0, 0, 0, 0)); // Setup 8 bit color RGB332
obj.state = 4;
if (obj.parent) { obj.parent.xxStateChange(3); }
_SendRefresh();
//obj.timer = setInterval(obj.xxOnTimer, 50);
// ###BEGIN###{DesktopFocus}
obj.ox = -1; // Old mouse x position
// ###END###{DesktopFocus}
if (obj.onScreenSizeChange != null) { obj.onScreenSizeChange(obj, obj.ScreenWidth, obj.ScreenHeight); }
}
else if (obj.state == 4) {
switch (obj.acc[0]) {
case 0: // FramebufferUpdate
if (obj.acc.byteLength < 4) return;
obj.state = 100 + accview.getUint16(2); // Read the number of tiles that are going to be sent, add 100 and use that as our protocol state.
cmdsize = 4;
if (obj.onPreDrawImage != null) obj.onPreDrawImage(); // Notify that we are about to draw on the canvas.
break;
case 2: // This is the bell, do nothing.
cmdsize = 1;
break;
case 3: // This is ServerCutText
if (obj.acc.byteLength < 8) return;
var len = accview.getUint32(4) + 8;
if (obj.acc.byteLength < len) return;
cmdsize = handleServerCutText(obj.acc, accview);
break;
}
}
else if ((obj.state > 100) && (obj.acc.byteLength >= 12)) {
var x = accview.getUint16(0),
y = accview.getUint16(2),
width = accview.getUint16(4),
height = accview.getUint16(6),
s = width * height,
encoding = accview.getUint32(8);
if (encoding < 17) {
if ((width < 1) || (width > 64) || (height < 1) || (height > 64)) { console.log("Invalid tile size (" + width + "," + height + "), disconnecting."); return obj.Stop(); }
// Set the spare bitmap to the right size if it's not already. This allows us to recycle the spare most if not all the time.
if ((obj.sparew != width) || (obj.spareh != height)) {
obj.sparew = obj.sparew2 = width;
obj.spareh = obj.spareh2 = height;
// ###BEGIN###{DesktopRotation}
if (obj.rotation == 1 || obj.rotation == 3) { obj.sparew2 = height, obj.spareh2 = width; }
// ###END###{DesktopRotation}
var xspacecachename = obj.sparew2 + 'x' + obj.spareh2;
obj.spare = obj.sparecache[xspacecachename];
if (!obj.spare) {
obj.sparecache[xspacecachename] = obj.spare = obj.canvas.createImageData(obj.sparew2, obj.spareh2);
var j = (obj.sparew2 * obj.spareh2) << 2;
for (var i = 3; i < j; i += 4) { obj.spare.data[i] = 0xFF; } // Set alpha channel to opaque.
}
}
}
if (encoding == 0xFFFFFF21) {
// Desktop Size (0xFFFFFF21, -223)
obj.canvas.canvas.width = obj.rwidth = obj.width = width;
obj.canvas.canvas.height = obj.rheight = obj.height = height;
obj.send(String.fromCharCode(3, 0, 0, 0, 0, 0) + ShortToStr(obj.width) + ShortToStr(obj.height)); // FramebufferUpdateRequest
cmdsize = 12;
if (obj.onScreenSizeChange != null) { obj.onScreenSizeChange(obj, obj.ScreenWidth, obj.ScreenHeight); }
//console.log("New desktop width: " + obj.width + ", height: " + obj.height);
} else if (encoding == 0) {
// RAW encoding
var ptr = 12, cs = 12 + (s * obj.bpp);
if (obj.acc.byteLength < cs) return; // Check we have all the data needed and we can only draw 64x64 tiles.
cmdsize = cs;
// CRITICAL LOOP, optimize this as much as possible
if (obj.bpp == 2) {
for (var i = 0; i < s; i++) { _setPixel16(accview.getUint16(ptr, true), i); ptr += 2; }
} else {
for (var i = 0; i < s; i++) { _setPixel8(obj.acc[ptr++], i); }
}
_putImage(obj.spare, x, y);
} else if (encoding == 16) {
// ZRLE encoding
if (obj.acc.byteLength < 16) return;
var datalen = accview.getUint32(12);
if (obj.acc.byteLength < (16 + datalen)) return;
// Process the ZLib header if this is the first block
var ptr = 16, delta = 5, dx = 0;
if ((datalen > 5) && (obj.acc[ptr] == 0) && (accview.getUint16(ptr + 1, true) == (datalen - delta))) {
// This is an uncompressed ZLib data block
_decodeLRE(obj.acc, ptr + 5, x, y, width, height, s, datalen);
}
// ###BEGIN###{Inflate}
else {
// This is compressed ZLib data, decompress and process it. (TODO: This need to be optimized, remove str/arr conversions)
var str = obj.inflate.inflate(arrToStr(new Uint8Array(obj.acc.buffer.slice(ptr, ptr + datalen - dx))));
if (str.length > 0) { _decodeLRE(strToArr(str), 0, x, y, width, height, s, str.length); } else { console.log("Invalid deflate data"); }
}
// ###END###{Inflate}
cmdsize = 16 + datalen;
} else { return obj.Stop(); }
if (--obj.state == 100) {
obj.state = 4;
if (obj.frameRateDelay == 0) {
_SendRefresh(); // Ask for new frame
} else {
setTimeout(_SendRefresh, obj.frameRateDelay); // Hold x miliseconds before asking for a new frame
}
}
}
//console.log('cmdsize', cmdsize);
if (cmdsize == 0) return;
if (cmdsize != obj.acc.byteLength) { obj.acc = new Uint8Array(obj.acc.buffer.slice(cmdsize)); } else { obj.acc = null; }
}
}
function _decodeLRE(data, ptr, x, y, width, height, s, datalen) {
var subencoding = data[ptr++], index, v, runlengthdecode, palette = {}, rlecount = 0, runlength = 0, i;
if (subencoding == 0) {
// RAW encoding
if (obj.bpp == 2) {
for (i = 0; i < s; i++) { _setPixel16(data[ptr++] + (data[ptr++] << 8), i); }
} else {
for (i = 0; i < s; i++) { _setPixel8(data[ptr++], i); }
}
_putImage(obj.spare, x, y);
}
else if (subencoding == 1) {
// Solid color tile
v = data[ptr++] + ((obj.bpp == 2) ? (data[ptr++] << 8) : 0);
obj.canvas.fillStyle = 'rgb(' + ((obj.bpp == 1) ? ((v & 224) + ',' + ((v & 28) << 3) + ',' + _fixColor((v & 3) << 6)) : (((v >> 8) & 248) + ',' + ((v >> 3) & 252) + ',' + ((v & 31) << 3))) + ')';
// ###BEGIN###{DesktopRotation}
var xx = _rotX(x, y);
y = _rotY(x, y);
x = xx;
// ###END###{DesktopRotation}
obj.canvas.fillRect(x, y, width, height);
}
else if (subencoding > 1 && subencoding < 17) { // Packed palette encoded tile
// Read the palette
var br = 4, bm = 15; // br is BitRead and bm is BitMask. By adjusting these two we can support all the variations in this encoding.
if (obj.bpp == 2) {
for (i = 0; i < subencoding; i++) { palette[i] = data[ptr++] + (data[ptr++] << 8); }
if (subencoding == 2) { br = 1; bm = 1; } else if (subencoding <= 4) { br = 2; bm = 3; } // Compute bits to read & bit mark
while (rlecount < s && ptr < data.byteLength) { v = data[ptr++]; for (i = (8 - br); i >= 0; i -= br) { _setPixel16(palette[(v >> i) & bm], rlecount++); } } // Display all the bits
} else {
for (i = 0; i < subencoding; i++) { palette[i] = data[ptr++]; }
if (subencoding == 2) { br = 1; bm = 1; } else if (subencoding <= 4) { br = 2; bm = 3; } // Compute bits to read & bit mark
while (rlecount < s && ptr < data.byteLength) { v = data[ptr++]; for (i = (8 - br); i >= 0; i -= br) { _setPixel8(palette[(v >> i) & bm], rlecount++); } } // Display all the bits
}
_putImage(obj.spare, x, y);
}
else if (subencoding == 128) { // RLE encoded tile
if (obj.bpp == 2) {
while (rlecount < s && ptr < data.byteLength) {
// Get the run color
v = data[ptr++] + (data[ptr++] << 8);
// Decode the run length. This is the fastest and most compact way I found to do this.
runlength = 1; do { runlength += (runlengthdecode = data[ptr++]); } while (runlengthdecode == 255);
// Draw a run
if (obj.rotation == 0) {
_setPixel16run(v, rlecount, runlength); rlecount += runlength;
} else {
while (--runlength >= 0) { _setPixel16(v, rlecount++); }
}
}
} else {
while (rlecount < s && ptr < data.byteLength) {
// Get the run color
v = data[ptr++];
// Decode the run length. This is the fastest and most compact way I found to do this.
runlength = 1; do { runlength += (runlengthdecode = data[ptr++]); } while (runlengthdecode == 255);
// Draw a run
if (obj.rotation == 0) {
_setPixel8run(v, rlecount, runlength); rlecount += runlength;
} else {
while (--runlength >= 0) { _setPixel8(v, rlecount++); }
}
}
}
_putImage(obj.spare, x, y);
}
else if (subencoding > 129) { // Palette RLE encoded tile
// Read the palette
if (obj.bpp == 2) {
for (i = 0; i < (subencoding - 128); i++) { palette[i] = data[ptr++] + (data[ptr++] << 8); }
} else {
for (i = 0; i < (subencoding - 128); i++) { palette[i] = data[ptr++]; }
}
// Decode RLE on palette
while (rlecount < s && ptr < data.byteLength) {
// Setup the run, get the color index and get the color from the palette.
runlength = 1; index = data[ptr++]; v = palette[index % 128];
// If the index starts with high order bit 1, this is a run and decode the run length.
if (index > 127) { do { runlength += (runlengthdecode = data[ptr++]); } while (runlengthdecode == 255); }
// Draw a run
if (obj.rotation == 0) {
if (obj.bpp == 2) {
_setPixel16run(v, rlecount, runlength); rlecount += runlength;
} else {
_setPixel8run(v, rlecount, runlength); rlecount += runlength;
}
} else {
if (obj.bpp == 2) {
while (--runlength >= 0) { _setPixel16(v, rlecount++); }
} else {
while (--runlength >= 0) { _setPixel8(v, rlecount++); }
}
}
}
_putImage(obj.spare, x, y);
}
}
// ###BEGIN###{DesktopInband}
obj.hold = function (holding) {
if (obj.holding == holding) return;
obj.holding = holding;
obj.canvas.fillStyle = '#000000';
obj.canvas.fillRect(0, 0, obj.width, obj.height); // Paint black
if (obj.holding == false) {
// Go back to normal operations
// Set canvas size and ask for full screen refresh
if ((obj.canvas.canvas.width != obj.width) || (obj.canvas.canvas.height != obj.height)) {
obj.canvas.canvas.width = obj.width; obj.canvas.canvas.height = obj.height;
if (obj.onScreenSizeChange != null) { obj.onScreenSizeChange(obj, obj.ScreenWidth, obj.ScreenHeight); } // ???
}
obj.Send(String.fromCharCode(3, 0, 0, 0, 0, 0) + ShortToStr(obj.width) + ShortToStr(obj.height)); // FramebufferUpdateRequest
} else {
obj.UnGrabMouseInput();
obj.UnGrabKeyInput();
}
}
// ###END###{DesktopInband}
function _putImage(i, x, y) {
// ###BEGIN###{DesktopInband}
if (obj.holding == true) return;
// ###END###{DesktopInband}
// ###BEGIN###{DesktopRotation}
var xx = _arotX(x, y);
y = _arotY(x, y);
x = xx;
// ###END###{DesktopRotation}
obj.canvas.putImageData(i, x, y);
}
// Set 8bit color RGB332
function _setPixel8(v, p) {
var pp = p << 2;
// ###BEGIN###{DesktopRotation}
if (obj.rotation > 0) {
if (obj.rotation == 1) { var x = p % obj.sparew, y = Math.floor(p / obj.sparew); p = (x * obj.sparew2) + (obj.sparew2 - 1 - y); pp = p << 2; }
else if (obj.rotation == 2) { pp = (obj.sparew * obj.spareh * 4) - 4 - pp; }
else if (obj.rotation == 3) { var x = p % obj.sparew, y = Math.floor(p / obj.sparew); p = ((obj.sparew2 - 1 - x) * obj.sparew2) + (y); pp = p << 2; }
}
// ###END###{DesktopRotation}
obj.spare.data[pp] = v & 224;
obj.spare.data[pp + 1] = (v & 28) << 3;
obj.spare.data[pp + 2] = _fixColor((v & 3) << 6);
}
// Set 16bit color RGB565
function _setPixel16(v, p) {
var pp = p << 2;
// ###BEGIN###{DesktopRotation}
if (obj.rotation > 0) {
if (obj.rotation == 1) { var x = p % obj.sparew, y = Math.floor(p / obj.sparew); p = (x * obj.sparew2) + (obj.sparew2 - 1 - y); pp = p << 2; }
else if (obj.rotation == 2) { pp = (obj.sparew * obj.spareh * 4) - 4 - pp; }
else if (obj.rotation == 3) { var x = p % obj.sparew, y = Math.floor(p / obj.sparew); p = ((obj.sparew2 - 1 - x) * obj.sparew2) + (y); pp = p << 2; }
}
// ###END###{DesktopRotation}
obj.spare.data[pp] = (v >> 8) & 248;
obj.spare.data[pp + 1] = (v >> 3) & 252;
obj.spare.data[pp + 2] = (v & 31) << 3;
}
// Set a run of 8bit color RGB332
function _setPixel8run(v, p, run) {
var pp = (p << 2), r = (v & 224), g = ((v & 28) << 3), b = (_fixColor((v & 3) << 6));
while (--run >= 0) { obj.spare.data[pp] = r; obj.spare.data[pp + 1] = g; obj.spare.data[pp + 2] = b; pp += 4; }
}
// Set a run of 16bit color RGB565
function _setPixel16run(v, p, run) {
var pp = (p << 2), r = ((v >> 8) & 248), g = ((v >> 3) & 252), b = ((v & 31) << 3);
while (--run >= 0) { obj.spare.data[pp] = r; obj.spare.data[pp + 1] = g; obj.spare.data[pp + 2] = b; pp += 4; }
}
// ###BEGIN###{DesktopRotation}
function _arotX(x, y) {
if (obj.rotation == 0) return x;
if (obj.rotation == 1) return obj.canvas.canvas.width - obj.sparew2 - y;
if (obj.rotation == 2) return obj.canvas.canvas.width - obj.sparew2 - x;
if (obj.rotation == 3) return y;
return 0;
}
function _arotY(x, y) {
if (obj.rotation == 0) return y;
if (obj.rotation == 1) return x;
if (obj.rotation == 2) return obj.canvas.canvas.height - obj.spareh2 - y;
if (obj.rotation == 3) return obj.canvas.canvas.height - obj.spareh - x;
return 0;
}
function _crotX(x, y) {
if (obj.rotation == 0) return x;
if (obj.rotation == 1) return y;
if (obj.rotation == 2) return obj.canvas.canvas.width - x;
if (obj.rotation == 3) return obj.canvas.canvas.height - y;
return 0;
}
function _crotY(x, y) {
if (obj.rotation == 0) return y;
if (obj.rotation == 1) return obj.canvas.canvas.width - x;
if (obj.rotation == 2) return obj.canvas.canvas.height - y;
if (obj.rotation == 3) return x;
return 0;
}
function _rotX(x, y) {
if (obj.rotation == 0) return x;
if (obj.rotation == 1) return x;
if (obj.rotation == 2) return x - obj.canvas.canvas.width;
if (obj.rotation == 3) return x - obj.canvas.canvas.height;
return 0;
}
function _rotY(x, y) {
if (obj.rotation == 0) return y;
if (obj.rotation == 1) return y - obj.canvas.canvas.width;
if (obj.rotation == 2) return y - obj.canvas.canvas.height;
if (obj.rotation == 3) return y;
return 0;
}
obj.tcanvas = null;
obj.setRotation = function (x) {
while (x < 0) { x += 4; }
var newrotation = x % 4;
//console.log('hard-rot: ' + newrotation);
// ###BEGIN###{DesktopInband}
if (obj.holding == true) { obj.rotation = newrotation; return; }
// ###END###{DesktopInband}
if (newrotation == obj.rotation) return true;
var rw = obj.canvas.canvas.width;
var rh = obj.canvas.canvas.height;
if (obj.rotation == 1 || obj.rotation == 3) { rw = obj.canvas.canvas.height; rh = obj.canvas.canvas.width; }
// Copy the canvas, put it back in the correct direction
if (obj.tcanvas == null) obj.tcanvas = document.createElement('canvas');
var tcanvasctx = obj.tcanvas.getContext('2d');
tcanvasctx.setTransform(1, 0, 0, 1, 0, 0);
tcanvasctx.canvas.width = rw;
tcanvasctx.canvas.height = rh;
tcanvasctx.rotate((obj.rotation * -90) * Math.PI / 180);
if (obj.rotation == 0) tcanvasctx.drawImage(obj.canvas.canvas, 0, 0);
if (obj.rotation == 1) tcanvasctx.drawImage(obj.canvas.canvas, -obj.canvas.canvas.width, 0);
if (obj.rotation == 2) tcanvasctx.drawImage(obj.canvas.canvas, -obj.canvas.canvas.width, -obj.canvas.canvas.height);
if (obj.rotation == 3) tcanvasctx.drawImage(obj.canvas.canvas, 0, -obj.canvas.canvas.height);
// Change the size and orientation and copy the canvas back into the rotation
if (obj.rotation == 0 || obj.rotation == 2) { obj.canvas.canvas.height = rw; obj.canvas.canvas.width = rh; }
if (obj.rotation == 1 || obj.rotation == 3) { obj.canvas.canvas.height = rh; obj.canvas.canvas.width = rw; }
obj.canvas.setTransform(1, 0, 0, 1, 0, 0);
obj.canvas.rotate((newrotation * 90) * Math.PI / 180);
obj.rotation = newrotation;
obj.canvas.drawImage(obj.tcanvas, _rotX(0, 0), _rotY(0, 0));
obj.width = obj.canvas.canvas.width;
obj.height = obj.canvas.canvas.height;
if (obj.onScreenResize != null) obj.onScreenResize(obj, obj.width, obj.height, obj.CanvasId);
return true;
}
// ###END###{DesktopRotation}
function _fixColor(c) { return (c > 127) ? (c + 32) : c; }
function _SendRefresh() {
// ###BEGIN###{DesktopInband}
if (obj.holding == true) return;
// ###END###{DesktopInband}
// ###BEGIN###{DesktopFocus}
if (obj.focusmode > 0) {
// Request only pixels around the last mouse position
var df = obj.focusmode * 2;
obj.send(String.fromCharCode(3, 1) + ShortToStr(Math.max(Math.min(obj.ox, obj.mx) - obj.focusmode, 0)) + ShortToStr(Math.max(Math.min(obj.oy, obj.my) - obj.focusmode, 0)) + ShortToStr(df + Math.abs(obj.ox - obj.mx)) + ShortToStr(df + Math.abs(obj.oy - obj.my))); // FramebufferUpdateRequest
obj.ox = obj.mx;
obj.oy = obj.my;
} else {
// ###END###{DesktopFocus}
// Request the entire screen
obj.send(String.fromCharCode(3, 1, 0, 0, 0, 0) + ShortToStr(obj.rwidth) + ShortToStr(obj.rheight)); // FramebufferUpdateRequest
// ###BEGIN###{DesktopFocus}
}
// ###END###{DesktopFocus}
}
obj.Start = function () {
obj.state = 0;
obj.acc = null;
obj.ZRLEfirst = 1;
// ###BEGIN###{Inflate}
obj.inflate.inflateReset();
// ###END###{Inflate}
// ###BEGIN###{DesktopInband}
obj.onKvmDataPending = [];
obj.onKvmDataAck = -1;
obj.kvmDataSupported = false;
// ###END###{DesktopInband}
for (var i in obj.sparecache) { delete obj.sparecache[i]; }
}
obj.Stop = function () { obj.UnGrabMouseInput(); obj.UnGrabKeyInput(); if (obj.parent) { obj.parent.Stop(); } }
obj.send = function (x) { if (obj.parent) { obj.parent.send(x); } }
var convertAmtKeyCodeTable = {
"Pause": 19,
"CapsLock": 20,
"Space": 32,
"Quote": 39,
"Minus": 45,
"NumpadMultiply": 42,
"NumpadAdd": 43,
"PrintScreen": 44,
"Comma": 44,
"NumpadSubtract": 45,
"NumpadDecimal": 46,
"Period": 46,
"Slash": 47,
"NumpadDivide": 47,
"Semicolon": 59,
"Equal": 61,
"OSLeft": 91,
"BracketLeft": 91,
"OSRight": 91,
"Backslash": 92,
"BracketRight": 93,
"ContextMenu": 93,
"Backquote": 96,
"NumLock": 144,
"ScrollLock": 145,
"Backspace": 0xff08,
"Tab": 0xff09,
"Enter": 0xff0d,
"NumpadEnter": 0xff0d,
"Escape": 0xff1b,
"Delete": 0xffff,
"Home": 0xff50,
"PageUp": 0xff55,
"PageDown": 0xff56,
"ArrowLeft": 0xff51,
"ArrowUp": 0xff52,
"ArrowRight": 0xff53,
"ArrowDown": 0xff54,
"End": 0xff57,
"Insert": 0xff63,
"F1": 0xffbe,
"F2": 0xffbf,
"F3": 0xffc0,
"F4": 0xffc1,
"F5": 0xffc2,
"F6": 0xffc3,
"F7": 0xffc4,
"F8": 0xffc5,
"F9": 0xffc6,
"F10": 0xffc7,
"F11": 0xffc8,
"F12": 0xffc9,
"ShiftLeft": 0xffe1,
"ShiftRight": 0xffe2,
"ControlLeft": 0xffe3,
"ControlRight": 0xffe4,
"AltLeft": 0xffe9,
"AltRight": 0xffea,
"MetaLeft": 0xffe7,
"MetaRight": 0xffe8
}
function convertAmtKeyCode(e) {
if (e.code.startsWith('Key') && e.code.length == 4) { return e.code.charCodeAt(3) + ((e.shiftKey == false) ? 32 : 0); }
if (e.code.startsWith('Digit') && e.code.length == 6) { return e.code.charCodeAt(5); }
if (e.code.startsWith('Numpad') && e.code.length == 7) { return e.code.charCodeAt(6); }
return convertAmtKeyCodeTable[e.code];
}
/*
Intel AMT only recognizes a small subset of keysym characters defined in the keysymdef.h so you don<6F>t need to
implement all the languages (this is taken care by the USB Scancode Extension in RFB4.0 protocol).
The only subset recognized by the FW is the defined by the following sets : XK_LATIN1 , XK_MISCELLANY, XK_3270, XK_XKB_KEYS, XK_KATAKANA.
In addition to keysymdef.h symbols there are 6 japanese extra keys that we do support:
#define XK_Intel_EU_102kbd_backslash_pipe_45 0x17170056 // European 102-key: 45 (backslash/pipe), usb Usage: 0x64
#define XK_Intel_JP_106kbd_yen_pipe 0x1717007d // Japanese 106-key: 14 (Yen/pipe), usb Usage: 0x89
#define XK_Intel_JP_106kbd_backslash_underbar 0x17170073 // Japanese 106-key: 56 (backslash/underbar), usb Usage: 0x87
#define XK_Intel_JP_106kbd_NoConvert 0x1717007b // Japanese 106-key: 131 (NoConvert), usb Usage: 0x8b
#define XK_Intel_JP_106kbd_Convert 0x17170079 // Japanese 106-key: 132 (Convert), usb Usage: 0x8a
#define XK_Intel_JP_106kbd_Hirigana_Katakana 0x17170070 // Japanese 106-key: 133 (Hirigana/Katakana), usb Usage: 0x88
*/
function _keyevent(d, e) {
if (!e) { e = window.event; }
if (e.code && (obj.localKeyMap == false)) {
// For new browsers, this mapping is keyboard language independent
var k = convertAmtKeyCode(e);
if (k != null) { obj.sendkey(k, d); }
} else {
// For older browsers, this mapping works best for EN-US keyboard
var k = e.keyCode, kk = k;
if (e.shiftKey == false && k >= 65 && k <= 90) kk = k + 32;
if (k >= 112 && k <= 124) kk = k + 0xFF4E;
if (k == 8) kk = 0xff08; // Backspace
if (k == 9) kk = 0xff09; // Tab
if (k == 13) kk = 0xff0d; // Return
if (k == 16) kk = 0xffe1; // Shift (Left)
if (k == 17) kk = 0xffe3; // Ctrl (Left)
if (k == 18) kk = 0xffe9; // Alt (Left)
if (k == 27) kk = 0xff1b; // ESC
if (k == 33) kk = 0xff55; // PageUp
if (k == 34) kk = 0xff56; // PageDown
if (k == 35) kk = 0xff57; // End
if (k == 36) kk = 0xff50; // Home
if (k == 37) kk = 0xff51; // Left
if (k == 38) kk = 0xff52; // Up
if (k == 39) kk = 0xff53; // Right
if (k == 40) kk = 0xff54; // Down
if (k == 45) kk = 0xff63; // Insert
if (k == 46) kk = 0xffff; // Delete
if (k >= 96 && k <= 105) kk = k - 48; // Key pad numbers
if (k == 106) kk = 42; // Pad *
if (k == 107) kk = 43; // Pad +
if (k == 109) kk = 45; // Pad -
if (k == 110) kk = 46; // Pad .
if (k == 111) kk = 47; // Pad /
if (k == 186) kk = 59; // ;
if (k == 187) kk = 61; // =
if (k == 188) kk = 44; // ,
if (k == 189) kk = 45; // -
if (k == 190) kk = 46; // .
if (k == 191) kk = 47; // /
if (k == 192) kk = 96; // `
if (k == 219) kk = 91; // [
if (k == 220) kk = 92; // \
if (k == 221) kk = 93; // ]
if (k == 222) kk = 39; // '
//console.log('Key' + d + ": " + k + " = " + kk);
obj.sendkey(kk, d);
}
return obj.haltEvent(e);
}
obj.sendkey = function (k, d) {
if (typeof k == 'object') {
var buf = ''; for (var i in k) { buf += (String.fromCharCode(4, k[i][1], 0, 0) + IntToStr(k[i][0])); } obj.send(buf);
} else {
obj.send(String.fromCharCode(4, d, 0, 0) + IntToStr(k));
}
}
function handleServerCutText(acc, accview) {
if (acc.byteLength < 8) return 0;
var len = accview.getUint32(4) + 8;
if (acc.byteLength < len) return 0;
// ###BEGIN###{DesktopInband}
if (obj.onKvmData != null) {
var d = arrToStr(acc.slice(8, len));
if ((d.length >= 16) && (d.substring(0, 15) == '\0KvmDataChannel')) {
if (obj.kvmDataSupported == false) { obj.kvmDataSupported = true; console.log('KVM Data Channel Supported.'); }
if (((obj.onKvmDataAck == -1) && (d.length == 16)) || (d.charCodeAt(15) != 0)) { obj.onKvmDataAck = true; }
//if (urlvars && urlvars['kvmdatatrace']) { console.log('KVM-Recv(' + (d.length - 16) + '): ' + d.substring(16)); }
if (d.length >= 16) { obj.onKvmData(d.substring(16)); } // Event the data and ack
if ((obj.onKvmDataAck == true) && (obj.onKvmDataPending.length > 0)) { obj.sendKvmData(obj.onKvmDataPending.shift()); } // Send pending data
}
}
// ###END###{DesktopInband}
return len;
}
// ###BEGIN###{DesktopInband}
obj.sendKvmData = function (x) {
if (obj.onKvmDataAck !== true) {
obj.onKvmDataPending.push(x);
} else {
//if (urlvars && urlvars['kvmdatatrace']) { console.log('KVM-Send(' + x.length + '): ' + x); }
x = '\0KvmDataChannel\0' + x;
obj.send(String.fromCharCode(6, 0, 0, 0) + IntToStr(x.length) + x);
obj.onKvmDataAck = false;
}
}
// Send a HWKVM keep alive if it's not been sent in the last 5 seconds.
obj.sendKeepAlive = function () {
if (obj.lastKeepAlive < Date.now() - 5000) { obj.lastKeepAlive = Date.now(); obj.send(String.fromCharCode(6, 0, 0, 0) + IntToStr(16) + '\0KvmDataChannel\0'); }
}
// ###END###{DesktopInband}
obj.SendCtrlAltDelMsg = function () { obj.sendcad(); }
obj.sendcad = function () { obj.sendkey([[0xFFE3, 1], [0xFFE9, 1], [0xFFFF, 1], [0xFFFF, 0], [0xFFE9, 0], [0xFFE3, 0]]); } // Control down, Alt down, Delete down, Delete up , Alt up , Control up
var _MouseInputGrab = false;
var _KeyInputGrab = false;
obj.GrabMouseInput = function () {
if (_MouseInputGrab == true) return;
var c = obj.canvas.canvas;
c.onmouseup = obj.mouseup;
c.onmousedown = obj.mousedown;
c.onmousemove = obj.mousemove;
//if (navigator.userAgent.match(/mozilla/i)) c.DOMMouseScroll = obj.xxDOMMouseScroll; else c.onmousewheel = obj.xxMouseWheel;
_MouseInputGrab = true;
}
obj.UnGrabMouseInput = function () {
if (_MouseInputGrab == false) return;
var c = obj.canvas.canvas;
c.onmousemove = null;
c.onmouseup = null;
c.onmousedown = null;
//if (navigator.userAgent.match(/mozilla/i)) c.DOMMouseScroll = null; else c.onmousewheel = null;
_MouseInputGrab = false;
}
obj.GrabKeyInput = function () {
if (_KeyInputGrab == true) return;
document.onkeyup = obj.handleKeyUp;
document.onkeydown = obj.handleKeyDown;
document.onkeypress = obj.handleKeys;
_KeyInputGrab = true;
}
obj.UnGrabKeyInput = function () {
if (_KeyInputGrab == false) return;
document.onkeyup = null;
document.onkeydown = null;
document.onkeypress = null;
_KeyInputGrab = false;
}
obj.handleKeys = function (e) { return obj.haltEvent(e); }
obj.handleKeyUp = function (e) { return _keyevent(0, e); }
obj.handleKeyDown = function (e) { return _keyevent(1, e); }
obj.haltEvent = function (e) { if (e.preventDefault) e.preventDefault(); if (e.stopPropagation) e.stopPropagation(); return false; }
// RFB "PointerEvent" and mouse handlers
obj.mousedblclick = function (e) { }
obj.mousedown = function (e) {
var b = e.button;
if (obj.SwapMouse) { if (b == 0) { b = 2; } else if (b == 2) { b = 0; } }
obj.buttonmask |= (1 << b); return obj.mousemove(e, 1);
}
obj.mouseup = function (e) {
var b = e.button;
if (obj.SwapMouse) { if (b == 0) { b = 2; } else if (b == 2) { b = 0; } }
obj.buttonmask &= (0xFFFF - (1 << b)); return obj.mousemove(e, 1);
}
obj.mousemove = function (e, force) {
if (obj.state < 4) return true;
var ScaleFactorHeight = (obj.canvas.canvas.height / Q(obj.canvasid).offsetHeight);
var ScaleFactorWidth = (obj.canvas.canvas.width / Q(obj.canvasid).offsetWidth);
var Offsets = obj.getPositionOfControl(Q(obj.canvasid));
obj.mx = ((event.pageX - Offsets[0]) * ScaleFactorWidth);
obj.my = ((event.pageY - Offsets[1]) * ScaleFactorHeight);
if (event.addx) { obj.mx += event.addx; }
if (event.addy) { obj.my += event.addy; }
// ###BEGIN###{DesktopRotation}
if (obj.noMouseRotate != true) {
obj.mx2 = _crotX(obj.mx, obj.my);
obj.my = _crotY(obj.mx, obj.my);
obj.mx = obj.mx2;
}
// ###END###{DesktopRotation}
// This is the mouse motion nagle timer. Slow down the mouse motion event rate.
if (force == 1) {
obj.send(String.fromCharCode(5, obj.buttonmask) + ShortToStr(obj.mx) + ShortToStr(obj.my));
if (obj.mNagleTimer != null) { clearTimeout(obj.mNagleTimer); obj.mNagleTimer = null; }
} else {
if (obj.mNagleTimer == null) {
obj.mNagleTimer = setTimeout(function () {
obj.send(String.fromCharCode(5, obj.buttonmask) + ShortToStr(obj.mx) + ShortToStr(obj.my));
obj.mNagleTimer = null;
}, 50);
}
}
// ###BEGIN###{DesktopFocus}
// Update focus area if we are in focus mode
QV('DeskFocus', obj.focusmode);
if (obj.focusmode != 0) {
var x = Math.min(obj.mx, obj.canvas.canvas.width - obj.focusmode),
y = Math.min(obj.my, obj.canvas.canvas.height - obj.focusmode),
df = obj.focusmode * 2,
c = Q(obj.canvasid),
qx = c.offsetHeight / obj.canvas.canvas.height,
qy = c.offsetWidth / obj.canvas.canvas.width,
q = QS('DeskFocus'),
ppos = obj.getPositionOfControl(Q(obj.canvasid).parentElement);
q.left = (Math.max(((x - obj.focusmode) * qx), 0) + (pos[0] - ppos[0])) + 'px';
q.top = (Math.max(((y - obj.focusmode) * qy), 0) + (pos[1] - ppos[1])) + 'px';
q.width = ((df * qx) - 6) + 'px';
q.height = ((df * qx) - 6) + 'px';
}
// ###END###{DesktopFocus}
return obj.haltEvent(e);
}
obj.getPositionOfControl = function (Control) {
var Position = Array(2);
Position[0] = Position[1] = 0;
while (Control) {
Position[0] += Control.offsetLeft;
Position[1] += Control.offsetTop;
Control = Control.offsetParent;
}
return Position;
}
return obj;
}
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