mirror of
https://github.com/gyurix1968/guacamole-client.git
synced 2025-09-06 13:17:41 +00:00
1691 lines
52 KiB
JavaScript
1691 lines
52 KiB
JavaScript
/*
|
|
* Licensed to the Apache Software Foundation (ASF) under one
|
|
* or more contributor license agreements. See the NOTICE file
|
|
* distributed with this work for additional information
|
|
* regarding copyright ownership. The ASF licenses this file
|
|
* to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance
|
|
* with the License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing,
|
|
* software distributed under the License is distributed on an
|
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
* KIND, either express or implied. See the License for the
|
|
* specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
|
|
var Guacamole = Guacamole || {};
|
|
|
|
/**
|
|
* Guacamole protocol client. Given a {@link Guacamole.Tunnel},
|
|
* automatically handles incoming and outgoing Guacamole instructions via the
|
|
* provided tunnel, updating its display using one or more canvas elements.
|
|
*
|
|
* @constructor
|
|
* @param {Guacamole.Tunnel} tunnel The tunnel to use to send and receive
|
|
* Guacamole instructions.
|
|
*/
|
|
Guacamole.Client = function(tunnel) {
|
|
|
|
var guac_client = this;
|
|
|
|
var STATE_IDLE = 0;
|
|
var STATE_CONNECTING = 1;
|
|
var STATE_WAITING = 2;
|
|
var STATE_CONNECTED = 3;
|
|
var STATE_DISCONNECTING = 4;
|
|
var STATE_DISCONNECTED = 5;
|
|
|
|
var currentState = STATE_IDLE;
|
|
|
|
var currentTimestamp = 0;
|
|
var pingInterval = null;
|
|
|
|
/**
|
|
* Translation from Guacamole protocol line caps to Layer line caps.
|
|
* @private
|
|
*/
|
|
var lineCap = {
|
|
0: "butt",
|
|
1: "round",
|
|
2: "square"
|
|
};
|
|
|
|
/**
|
|
* Translation from Guacamole protocol line caps to Layer line caps.
|
|
* @private
|
|
*/
|
|
var lineJoin = {
|
|
0: "bevel",
|
|
1: "miter",
|
|
2: "round"
|
|
};
|
|
|
|
/**
|
|
* The underlying Guacamole display.
|
|
*
|
|
* @private
|
|
* @type {Guacamole.Display}
|
|
*/
|
|
var display = new Guacamole.Display();
|
|
|
|
/**
|
|
* All available layers and buffers
|
|
*
|
|
* @private
|
|
* @type {Object.<Number, (Guacamole.Display.VisibleLayer|Guacamole.Layer)>}
|
|
*/
|
|
var layers = {};
|
|
|
|
/**
|
|
* All audio players currently in use by the client. Initially, this will
|
|
* be empty, but audio players may be allocated by the server upon request.
|
|
*
|
|
* @private
|
|
* @type {Object.<Number, Guacamole.AudioPlayer>}
|
|
*/
|
|
var audioPlayers = {};
|
|
|
|
/**
|
|
* All video players currently in use by the client. Initially, this will
|
|
* be empty, but video players may be allocated by the server upon request.
|
|
*
|
|
* @private
|
|
* @type {Object.<Number, Guacamole.VideoPlayer>}
|
|
*/
|
|
var videoPlayers = {};
|
|
|
|
// No initial parsers
|
|
var parsers = [];
|
|
|
|
// No initial streams
|
|
var streams = [];
|
|
|
|
/**
|
|
* All current objects. The index of each object is dictated by the
|
|
* Guacamole server.
|
|
*
|
|
* @private
|
|
* @type {Guacamole.Object[]}
|
|
*/
|
|
var objects = [];
|
|
|
|
// Pool of available stream indices
|
|
var stream_indices = new Guacamole.IntegerPool();
|
|
|
|
// Array of allocated output streams by index
|
|
var output_streams = [];
|
|
|
|
function setState(state) {
|
|
if (state != currentState) {
|
|
currentState = state;
|
|
if (guac_client.onstatechange)
|
|
guac_client.onstatechange(currentState);
|
|
}
|
|
}
|
|
|
|
function isConnected() {
|
|
return currentState == STATE_CONNECTED
|
|
|| currentState == STATE_WAITING;
|
|
}
|
|
|
|
/**
|
|
* Produces an opaque representation of Guacamole.Client state which can be
|
|
* later imported through a call to importState(). This object is
|
|
* effectively an independent, compressed snapshot of protocol and display
|
|
* state. Invoking this function implicitly flushes the display.
|
|
*
|
|
* @param {function} callback
|
|
* Callback which should be invoked once the state object is ready. The
|
|
* state object will be passed to the callback as the sole parameter.
|
|
* This callback may be invoked immediately, or later as the display
|
|
* finishes rendering and becomes ready.
|
|
*/
|
|
this.exportState = function exportState(callback) {
|
|
|
|
// Start with empty state
|
|
var state = {
|
|
'currentState' : currentState,
|
|
'currentTimestamp' : currentTimestamp,
|
|
'layers' : {}
|
|
};
|
|
|
|
var layersSnapshot = {};
|
|
|
|
// Make a copy of all current layers (protocol state)
|
|
for (var key in layers) {
|
|
layersSnapshot[key] = layers[key];
|
|
}
|
|
|
|
// Populate layers once data is available (display state, requires flush)
|
|
display.flush(function populateLayers() {
|
|
|
|
// Export each defined layer/buffer
|
|
for (var key in layersSnapshot) {
|
|
|
|
var index = parseInt(key);
|
|
var layer = layersSnapshot[key];
|
|
var canvas = layer.toCanvas();
|
|
|
|
// Store layer/buffer dimensions
|
|
var exportLayer = {
|
|
'width' : layer.width,
|
|
'height' : layer.height
|
|
};
|
|
|
|
// Store layer/buffer image data, if it can be generated
|
|
if (layer.width && layer.height)
|
|
exportLayer.url = canvas.toDataURL('image/png');
|
|
|
|
// Add layer properties if not a buffer nor the default layer
|
|
if (index > 0) {
|
|
exportLayer.x = layer.x;
|
|
exportLayer.y = layer.y;
|
|
exportLayer.z = layer.z;
|
|
exportLayer.alpha = layer.alpha;
|
|
exportLayer.matrix = layer.matrix;
|
|
exportLayer.parent = getLayerIndex(layer.parent);
|
|
}
|
|
|
|
// Store exported layer
|
|
state.layers[key] = exportLayer;
|
|
|
|
}
|
|
|
|
// Invoke callback now that the state is ready
|
|
callback(state);
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Restores Guacamole.Client protocol and display state based on an opaque
|
|
* object from a prior call to exportState(). The Guacamole.Client instance
|
|
* used to export that state need not be the same as this instance.
|
|
*
|
|
* @param {Object} state
|
|
* An opaque representation of Guacamole.Client state from a prior call
|
|
* to exportState().
|
|
*
|
|
* @param {function} [callback]
|
|
* The function to invoke when state has finished being imported. This
|
|
* may happen immediately, or later as images within the provided state
|
|
* object are loaded.
|
|
*/
|
|
this.importState = function importState(state, callback) {
|
|
|
|
var key;
|
|
var index;
|
|
|
|
currentState = state.currentState;
|
|
currentTimestamp = state.currentTimestamp;
|
|
|
|
// Dispose of all layers
|
|
for (key in layers) {
|
|
index = parseInt(key);
|
|
if (index > 0)
|
|
display.dispose(layers[key]);
|
|
}
|
|
|
|
layers = {};
|
|
|
|
// Import state of each layer/buffer
|
|
for (key in state.layers) {
|
|
|
|
index = parseInt(key);
|
|
|
|
var importLayer = state.layers[key];
|
|
var layer = getLayer(index);
|
|
|
|
// Reset layer size
|
|
display.resize(layer, importLayer.width, importLayer.height);
|
|
|
|
// Initialize new layer if it has associated data
|
|
if (importLayer.url) {
|
|
display.setChannelMask(layer, Guacamole.Layer.SRC);
|
|
display.draw(layer, 0, 0, importLayer.url);
|
|
}
|
|
|
|
// Set layer-specific properties if not a buffer nor the default layer
|
|
if (index > 0 && importLayer.parent >= 0) {
|
|
|
|
// Apply layer position and set parent
|
|
var parent = getLayer(importLayer.parent);
|
|
display.move(layer, parent, importLayer.x, importLayer.y, importLayer.z);
|
|
|
|
// Set layer transparency
|
|
display.shade(layer, importLayer.alpha);
|
|
|
|
// Apply matrix transform
|
|
var matrix = importLayer.matrix;
|
|
display.distort(layer,
|
|
matrix[0], matrix[1], matrix[2],
|
|
matrix[3], matrix[4], matrix[5]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Flush changes to display
|
|
display.flush(callback);
|
|
|
|
};
|
|
|
|
/**
|
|
* Returns the underlying display of this Guacamole.Client. The display
|
|
* contains an Element which can be added to the DOM, causing the
|
|
* display to become visible.
|
|
*
|
|
* @return {Guacamole.Display} The underlying display of this
|
|
* Guacamole.Client.
|
|
*/
|
|
this.getDisplay = function() {
|
|
return display;
|
|
};
|
|
|
|
/**
|
|
* Sends the current size of the screen.
|
|
*
|
|
* @param {Number} width The width of the screen.
|
|
* @param {Number} height The height of the screen.
|
|
*/
|
|
this.sendSize = function(width, height) {
|
|
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
tunnel.sendMessage("size", width, height);
|
|
|
|
};
|
|
|
|
/**
|
|
* Sends a key event having the given properties as if the user
|
|
* pressed or released a key.
|
|
*
|
|
* @param {Boolean} pressed Whether the key is pressed (true) or released
|
|
* (false).
|
|
* @param {Number} keysym The keysym of the key being pressed or released.
|
|
*/
|
|
this.sendKeyEvent = function(pressed, keysym) {
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
tunnel.sendMessage("key", keysym, pressed);
|
|
};
|
|
|
|
/**
|
|
* Sends a mouse event having the properties provided by the given mouse
|
|
* state.
|
|
*
|
|
* @param {Guacamole.Mouse.State} mouseState The state of the mouse to send
|
|
* in the mouse event.
|
|
*/
|
|
this.sendMouseState = function(mouseState) {
|
|
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
// Update client-side cursor
|
|
display.moveCursor(
|
|
Math.floor(mouseState.x),
|
|
Math.floor(mouseState.y)
|
|
);
|
|
|
|
// Build mask
|
|
var buttonMask = 0;
|
|
if (mouseState.left) buttonMask |= 1;
|
|
if (mouseState.middle) buttonMask |= 2;
|
|
if (mouseState.right) buttonMask |= 4;
|
|
if (mouseState.up) buttonMask |= 8;
|
|
if (mouseState.down) buttonMask |= 16;
|
|
|
|
// Send message
|
|
tunnel.sendMessage("mouse", Math.floor(mouseState.x), Math.floor(mouseState.y), buttonMask);
|
|
};
|
|
|
|
/**
|
|
* Allocates an available stream index and creates a new
|
|
* Guacamole.OutputStream using that index, associating the resulting
|
|
* stream with this Guacamole.Client. Note that this stream will not yet
|
|
* exist as far as the other end of the Guacamole connection is concerned.
|
|
* Streams exist within the Guacamole protocol only when referenced by an
|
|
* instruction which creates the stream, such as a "clipboard", "file", or
|
|
* "pipe" instruction.
|
|
*
|
|
* @returns {Guacamole.OutputStream}
|
|
* A new Guacamole.OutputStream with a newly-allocated index and
|
|
* associated with this Guacamole.Client.
|
|
*/
|
|
this.createOutputStream = function createOutputStream() {
|
|
|
|
// Allocate index
|
|
var index = stream_indices.next();
|
|
|
|
// Return new stream
|
|
var stream = output_streams[index] = new Guacamole.OutputStream(guac_client, index);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Opens a new audio stream for writing, where audio data having the give
|
|
* mimetype will be sent along the returned stream. The instruction
|
|
* necessary to create this stream will automatically be sent.
|
|
*
|
|
* @param {String} mimetype
|
|
* The mimetype of the audio data that will be sent along the returned
|
|
* stream.
|
|
*
|
|
* @return {Guacamole.OutputStream}
|
|
* The created audio stream.
|
|
*/
|
|
this.createAudioStream = function(mimetype) {
|
|
|
|
// Allocate and associate stream with audio metadata
|
|
var stream = guac_client.createOutputStream();
|
|
tunnel.sendMessage("audio", stream.index, mimetype);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Opens a new file for writing, having the given index, mimetype and
|
|
* filename. The instruction necessary to create this stream will
|
|
* automatically be sent.
|
|
*
|
|
* @param {String} mimetype The mimetype of the file being sent.
|
|
* @param {String} filename The filename of the file being sent.
|
|
* @return {Guacamole.OutputStream} The created file stream.
|
|
*/
|
|
this.createFileStream = function(mimetype, filename) {
|
|
|
|
// Allocate and associate stream with file metadata
|
|
var stream = guac_client.createOutputStream();
|
|
tunnel.sendMessage("file", stream.index, mimetype, filename);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Opens a new pipe for writing, having the given name and mimetype. The
|
|
* instruction necessary to create this stream will automatically be sent.
|
|
*
|
|
* @param {String} mimetype The mimetype of the data being sent.
|
|
* @param {String} name The name of the pipe.
|
|
* @return {Guacamole.OutputStream} The created file stream.
|
|
*/
|
|
this.createPipeStream = function(mimetype, name) {
|
|
|
|
// Allocate and associate stream with pipe metadata
|
|
var stream = guac_client.createOutputStream();
|
|
tunnel.sendMessage("pipe", stream.index, mimetype, name);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Opens a new clipboard object for writing, having the given mimetype. The
|
|
* instruction necessary to create this stream will automatically be sent.
|
|
*
|
|
* @param {String} mimetype The mimetype of the data being sent.
|
|
* @param {String} name The name of the pipe.
|
|
* @return {Guacamole.OutputStream} The created file stream.
|
|
*/
|
|
this.createClipboardStream = function(mimetype) {
|
|
|
|
// Allocate and associate stream with clipboard metadata
|
|
var stream = guac_client.createOutputStream();
|
|
tunnel.sendMessage("clipboard", stream.index, mimetype);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Opens a new argument value stream for writing, having the given
|
|
* parameter name and mimetype, requesting that the connection parameter
|
|
* with the given name be updated to the value described by the contents
|
|
* of the following stream. The instruction necessary to create this stream
|
|
* will automatically be sent.
|
|
*
|
|
* @param {String} mimetype
|
|
* The mimetype of the data being sent.
|
|
*
|
|
* @param {String} name
|
|
* The name of the connection parameter to attempt to update.
|
|
*
|
|
* @return {Guacamole.OutputStream}
|
|
* The created argument value stream.
|
|
*/
|
|
this.createArgumentValueStream = function createArgumentValueStream(mimetype, name) {
|
|
|
|
// Allocate and associate stream with argument value metadata
|
|
var stream = guac_client.createOutputStream();
|
|
tunnel.sendMessage("argv", stream.index, mimetype, name);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Creates a new output stream associated with the given object and having
|
|
* the given mimetype and name. The legality of a mimetype and name is
|
|
* dictated by the object itself. The instruction necessary to create this
|
|
* stream will automatically be sent.
|
|
*
|
|
* @param {Number} index
|
|
* The index of the object for which the output stream is being
|
|
* created.
|
|
*
|
|
* @param {String} mimetype
|
|
* The mimetype of the data which will be sent to the output stream.
|
|
*
|
|
* @param {String} name
|
|
* The defined name of an output stream within the given object.
|
|
*
|
|
* @returns {Guacamole.OutputStream}
|
|
* An output stream which will write blobs to the named output stream
|
|
* of the given object.
|
|
*/
|
|
this.createObjectOutputStream = function createObjectOutputStream(index, mimetype, name) {
|
|
|
|
// Allocate and ssociate stream with object metadata
|
|
var stream = guac_client.createOutputStream();
|
|
tunnel.sendMessage("put", index, stream.index, mimetype, name);
|
|
return stream;
|
|
|
|
};
|
|
|
|
/**
|
|
* Requests read access to the input stream having the given name. If
|
|
* successful, a new input stream will be created.
|
|
*
|
|
* @param {Number} index
|
|
* The index of the object from which the input stream is being
|
|
* requested.
|
|
*
|
|
* @param {String} name
|
|
* The name of the input stream to request.
|
|
*/
|
|
this.requestObjectInputStream = function requestObjectInputStream(index, name) {
|
|
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
tunnel.sendMessage("get", index, name);
|
|
};
|
|
|
|
/**
|
|
* Acknowledge receipt of a blob on the stream with the given index.
|
|
*
|
|
* @param {Number} index The index of the stream associated with the
|
|
* received blob.
|
|
* @param {String} message A human-readable message describing the error
|
|
* or status.
|
|
* @param {Number} code The error code, if any, or 0 for success.
|
|
*/
|
|
this.sendAck = function(index, message, code) {
|
|
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
tunnel.sendMessage("ack", index, message, code);
|
|
};
|
|
|
|
/**
|
|
* Given the index of a file, writes a blob of data to that file.
|
|
*
|
|
* @param {Number} index The index of the file to write to.
|
|
* @param {String} data Base64-encoded data to write to the file.
|
|
*/
|
|
this.sendBlob = function(index, data) {
|
|
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
tunnel.sendMessage("blob", index, data);
|
|
};
|
|
|
|
/**
|
|
* Marks a currently-open stream as complete. The other end of the
|
|
* Guacamole connection will be notified via an "end" instruction that the
|
|
* stream is closed, and the index will be made available for reuse in
|
|
* future streams.
|
|
*
|
|
* @param {Number} index
|
|
* The index of the stream to end.
|
|
*/
|
|
this.endStream = function(index) {
|
|
|
|
// Do not send requests if not connected
|
|
if (!isConnected())
|
|
return;
|
|
|
|
// Explicitly close stream by sending "end" instruction
|
|
tunnel.sendMessage("end", index);
|
|
|
|
// Free associated index and stream if they exist
|
|
if (output_streams[index]) {
|
|
stream_indices.free(index);
|
|
delete output_streams[index];
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Fired whenever the state of this Guacamole.Client changes.
|
|
*
|
|
* @event
|
|
* @param {Number} state The new state of the client.
|
|
*/
|
|
this.onstatechange = null;
|
|
|
|
/**
|
|
* Fired when the remote client sends a name update.
|
|
*
|
|
* @event
|
|
* @param {String} name The new name of this client.
|
|
*/
|
|
this.onname = null;
|
|
|
|
/**
|
|
* Fired when an error is reported by the remote client, and the connection
|
|
* is being closed.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.Status} status A status object which describes the
|
|
* error.
|
|
*/
|
|
this.onerror = null;
|
|
|
|
/**
|
|
* Fired when a audio stream is created. The stream provided to this event
|
|
* handler will contain its own event handlers for received data.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.InputStream} stream
|
|
* The stream that will receive audio data from the server.
|
|
*
|
|
* @param {String} mimetype
|
|
* The mimetype of the audio data which will be received.
|
|
*
|
|
* @return {Guacamole.AudioPlayer}
|
|
* An object which implements the Guacamole.AudioPlayer interface and
|
|
* has been initialied to play the data in the provided stream, or null
|
|
* if the built-in audio players of the Guacamole client should be
|
|
* used.
|
|
*/
|
|
this.onaudio = null;
|
|
|
|
/**
|
|
* Fired when a video stream is created. The stream provided to this event
|
|
* handler will contain its own event handlers for received data.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.InputStream} stream
|
|
* The stream that will receive video data from the server.
|
|
*
|
|
* @param {Guacamole.Display.VisibleLayer} layer
|
|
* The destination layer on which the received video data should be
|
|
* played. It is the responsibility of the Guacamole.VideoPlayer
|
|
* implementation to play the received data within this layer.
|
|
*
|
|
* @param {String} mimetype
|
|
* The mimetype of the video data which will be received.
|
|
*
|
|
* @return {Guacamole.VideoPlayer}
|
|
* An object which implements the Guacamole.VideoPlayer interface and
|
|
* has been initialied to play the data in the provided stream, or null
|
|
* if the built-in video players of the Guacamole client should be
|
|
* used.
|
|
*/
|
|
this.onvideo = null;
|
|
|
|
/**
|
|
* Fired when the current value of a connection parameter is being exposed
|
|
* by the server.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.InputStream} stream
|
|
* The stream that will receive connection parameter data from the
|
|
* server.
|
|
*
|
|
* @param {String} mimetype
|
|
* The mimetype of the data which will be received.
|
|
*
|
|
* @param {String} name
|
|
* The name of the connection parameter whose value is being exposed.
|
|
*/
|
|
this.onargv = null;
|
|
|
|
/**
|
|
* Fired when the clipboard of the remote client is changing.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.InputStream} stream The stream that will receive
|
|
* clipboard data from the server.
|
|
* @param {String} mimetype The mimetype of the data which will be received.
|
|
*/
|
|
this.onclipboard = null;
|
|
|
|
/**
|
|
* Fired when a file stream is created. The stream provided to this event
|
|
* handler will contain its own event handlers for received data.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.InputStream} stream The stream that will receive data
|
|
* from the server.
|
|
* @param {String} mimetype The mimetype of the file received.
|
|
* @param {String} filename The name of the file received.
|
|
*/
|
|
this.onfile = null;
|
|
|
|
/**
|
|
* Fired when a filesystem object is created. The object provided to this
|
|
* event handler will contain its own event handlers and functions for
|
|
* requesting and handling data.
|
|
*
|
|
* @event
|
|
* @param {Guacamole.Object} object
|
|
* The created filesystem object.
|
|
*
|
|
* @param {String} name
|
|
* The name of the filesystem.
|
|
*/
|
|
this.onfilesystem = null;
|
|
|
|
/**
|
|
* Fired when a pipe stream is created. The stream provided to this event
|
|
* handler will contain its own event handlers for received data;
|
|
*
|
|
* @event
|
|
* @param {Guacamole.InputStream} stream The stream that will receive data
|
|
* from the server.
|
|
* @param {String} mimetype The mimetype of the data which will be received.
|
|
* @param {String} name The name of the pipe.
|
|
*/
|
|
this.onpipe = null;
|
|
|
|
/**
|
|
* Fired whenever a sync instruction is received from the server, indicating
|
|
* that the server is finished processing any input from the client and
|
|
* has sent any results.
|
|
*
|
|
* @event
|
|
* @param {Number} timestamp The timestamp associated with the sync
|
|
* instruction.
|
|
*/
|
|
this.onsync = null;
|
|
|
|
/**
|
|
* Returns the layer with the given index, creating it if necessary.
|
|
* Positive indices refer to visible layers, an index of zero refers to
|
|
* the default layer, and negative indices refer to buffers.
|
|
*
|
|
* @private
|
|
* @param {Number} index
|
|
* The index of the layer to retrieve.
|
|
*
|
|
* @return {Guacamole.Display.VisibleLayer|Guacamole.Layer}
|
|
* The layer having the given index.
|
|
*/
|
|
var getLayer = function getLayer(index) {
|
|
|
|
// Get layer, create if necessary
|
|
var layer = layers[index];
|
|
if (!layer) {
|
|
|
|
// Create layer based on index
|
|
if (index === 0)
|
|
layer = display.getDefaultLayer();
|
|
else if (index > 0)
|
|
layer = display.createLayer();
|
|
else
|
|
layer = display.createBuffer();
|
|
|
|
// Add new layer
|
|
layers[index] = layer;
|
|
|
|
}
|
|
|
|
return layer;
|
|
|
|
};
|
|
|
|
/**
|
|
* Returns the index passed to getLayer() when the given layer was created.
|
|
* Positive indices refer to visible layers, an index of zero refers to the
|
|
* default layer, and negative indices refer to buffers.
|
|
*
|
|
* @param {Guacamole.Display.VisibleLayer|Guacamole.Layer} layer
|
|
* The layer whose index should be determined.
|
|
*
|
|
* @returns {Number}
|
|
* The index of the given layer, or null if no such layer is associated
|
|
* with this client.
|
|
*/
|
|
var getLayerIndex = function getLayerIndex(layer) {
|
|
|
|
// Avoid searching if there clearly is no such layer
|
|
if (!layer)
|
|
return null;
|
|
|
|
// Search through each layer, returning the index of the given layer
|
|
// once found
|
|
for (var key in layers) {
|
|
if (layer === layers[key])
|
|
return parseInt(key);
|
|
}
|
|
|
|
// Otherwise, no such index
|
|
return null;
|
|
|
|
};
|
|
|
|
function getParser(index) {
|
|
|
|
var parser = parsers[index];
|
|
|
|
// If parser not yet created, create it, and tie to the
|
|
// oninstruction handler of the tunnel.
|
|
if (parser == null) {
|
|
parser = parsers[index] = new Guacamole.Parser();
|
|
parser.oninstruction = tunnel.oninstruction;
|
|
}
|
|
|
|
return parser;
|
|
|
|
}
|
|
|
|
/**
|
|
* Handlers for all defined layer properties.
|
|
* @private
|
|
*/
|
|
var layerPropertyHandlers = {
|
|
|
|
"miter-limit": function(layer, value) {
|
|
display.setMiterLimit(layer, parseFloat(value));
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Handlers for all instruction opcodes receivable by a Guacamole protocol
|
|
* client.
|
|
* @private
|
|
*/
|
|
var instructionHandlers = {
|
|
|
|
"ack": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var reason = parameters[1];
|
|
var code = parseInt(parameters[2]);
|
|
|
|
// Get stream
|
|
var stream = output_streams[stream_index];
|
|
if (stream) {
|
|
|
|
// Signal ack if handler defined
|
|
if (stream.onack)
|
|
stream.onack(new Guacamole.Status(code, reason));
|
|
|
|
// If code is an error, invalidate stream if not already
|
|
// invalidated by onack handler
|
|
if (code >= 0x0100 && output_streams[stream_index] === stream) {
|
|
stream_indices.free(stream_index);
|
|
delete output_streams[stream_index];
|
|
}
|
|
|
|
}
|
|
|
|
},
|
|
|
|
"arc": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var x = parseInt(parameters[1]);
|
|
var y = parseInt(parameters[2]);
|
|
var radius = parseInt(parameters[3]);
|
|
var startAngle = parseFloat(parameters[4]);
|
|
var endAngle = parseFloat(parameters[5]);
|
|
var negative = parseInt(parameters[6]);
|
|
|
|
display.arc(layer, x, y, radius, startAngle, endAngle, negative != 0);
|
|
|
|
},
|
|
|
|
"argv": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var mimetype = parameters[1];
|
|
var name = parameters[2];
|
|
|
|
// Create stream
|
|
if (guac_client.onargv) {
|
|
var stream = streams[stream_index] = new Guacamole.InputStream(guac_client, stream_index);
|
|
guac_client.onargv(stream, mimetype, name);
|
|
}
|
|
|
|
// Otherwise, unsupported
|
|
else
|
|
guac_client.sendAck(stream_index, "Receiving argument values unsupported", 0x0100);
|
|
|
|
},
|
|
|
|
"audio": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var mimetype = parameters[1];
|
|
|
|
// Create stream
|
|
var stream = streams[stream_index] =
|
|
new Guacamole.InputStream(guac_client, stream_index);
|
|
|
|
// Get player instance via callback
|
|
var audioPlayer = null;
|
|
if (guac_client.onaudio)
|
|
audioPlayer = guac_client.onaudio(stream, mimetype);
|
|
|
|
// If unsuccessful, try to use a default implementation
|
|
if (!audioPlayer)
|
|
audioPlayer = Guacamole.AudioPlayer.getInstance(stream, mimetype);
|
|
|
|
// If we have successfully retrieved an audio player, send success response
|
|
if (audioPlayer) {
|
|
audioPlayers[stream_index] = audioPlayer;
|
|
guac_client.sendAck(stream_index, "OK", 0x0000);
|
|
}
|
|
|
|
// Otherwise, mimetype must be unsupported
|
|
else
|
|
guac_client.sendAck(stream_index, "BAD TYPE", 0x030F);
|
|
|
|
},
|
|
|
|
"blob": function(parameters) {
|
|
|
|
// Get stream
|
|
var stream_index = parseInt(parameters[0]);
|
|
var data = parameters[1];
|
|
var stream = streams[stream_index];
|
|
|
|
// Write data
|
|
if (stream && stream.onblob)
|
|
stream.onblob(data);
|
|
|
|
},
|
|
|
|
"body" : function handleBody(parameters) {
|
|
|
|
// Get object
|
|
var objectIndex = parseInt(parameters[0]);
|
|
var object = objects[objectIndex];
|
|
|
|
var streamIndex = parseInt(parameters[1]);
|
|
var mimetype = parameters[2];
|
|
var name = parameters[3];
|
|
|
|
// Create stream if handler defined
|
|
if (object && object.onbody) {
|
|
var stream = streams[streamIndex] = new Guacamole.InputStream(guac_client, streamIndex);
|
|
object.onbody(stream, mimetype, name);
|
|
}
|
|
|
|
// Otherwise, unsupported
|
|
else
|
|
guac_client.sendAck(streamIndex, "Receipt of body unsupported", 0x0100);
|
|
|
|
},
|
|
|
|
"cfill": function(parameters) {
|
|
|
|
var channelMask = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var r = parseInt(parameters[2]);
|
|
var g = parseInt(parameters[3]);
|
|
var b = parseInt(parameters[4]);
|
|
var a = parseInt(parameters[5]);
|
|
|
|
display.setChannelMask(layer, channelMask);
|
|
display.fillColor(layer, r, g, b, a);
|
|
|
|
},
|
|
|
|
"clip": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
|
|
display.clip(layer);
|
|
|
|
},
|
|
|
|
"clipboard": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var mimetype = parameters[1];
|
|
|
|
// Create stream
|
|
if (guac_client.onclipboard) {
|
|
var stream = streams[stream_index] = new Guacamole.InputStream(guac_client, stream_index);
|
|
guac_client.onclipboard(stream, mimetype);
|
|
}
|
|
|
|
// Otherwise, unsupported
|
|
else
|
|
guac_client.sendAck(stream_index, "Clipboard unsupported", 0x0100);
|
|
|
|
},
|
|
|
|
"close": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
|
|
display.close(layer);
|
|
|
|
},
|
|
|
|
"copy": function(parameters) {
|
|
|
|
var srcL = getLayer(parseInt(parameters[0]));
|
|
var srcX = parseInt(parameters[1]);
|
|
var srcY = parseInt(parameters[2]);
|
|
var srcWidth = parseInt(parameters[3]);
|
|
var srcHeight = parseInt(parameters[4]);
|
|
var channelMask = parseInt(parameters[5]);
|
|
var dstL = getLayer(parseInt(parameters[6]));
|
|
var dstX = parseInt(parameters[7]);
|
|
var dstY = parseInt(parameters[8]);
|
|
|
|
display.setChannelMask(dstL, channelMask);
|
|
display.copy(srcL, srcX, srcY, srcWidth, srcHeight,
|
|
dstL, dstX, dstY);
|
|
|
|
},
|
|
|
|
"cstroke": function(parameters) {
|
|
|
|
var channelMask = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var cap = lineCap[parseInt(parameters[2])];
|
|
var join = lineJoin[parseInt(parameters[3])];
|
|
var thickness = parseInt(parameters[4]);
|
|
var r = parseInt(parameters[5]);
|
|
var g = parseInt(parameters[6]);
|
|
var b = parseInt(parameters[7]);
|
|
var a = parseInt(parameters[8]);
|
|
|
|
display.setChannelMask(layer, channelMask);
|
|
display.strokeColor(layer, cap, join, thickness, r, g, b, a);
|
|
|
|
},
|
|
|
|
"cursor": function(parameters) {
|
|
|
|
var cursorHotspotX = parseInt(parameters[0]);
|
|
var cursorHotspotY = parseInt(parameters[1]);
|
|
var srcL = getLayer(parseInt(parameters[2]));
|
|
var srcX = parseInt(parameters[3]);
|
|
var srcY = parseInt(parameters[4]);
|
|
var srcWidth = parseInt(parameters[5]);
|
|
var srcHeight = parseInt(parameters[6]);
|
|
|
|
display.setCursor(cursorHotspotX, cursorHotspotY,
|
|
srcL, srcX, srcY, srcWidth, srcHeight);
|
|
|
|
},
|
|
|
|
"curve": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var cp1x = parseInt(parameters[1]);
|
|
var cp1y = parseInt(parameters[2]);
|
|
var cp2x = parseInt(parameters[3]);
|
|
var cp2y = parseInt(parameters[4]);
|
|
var x = parseInt(parameters[5]);
|
|
var y = parseInt(parameters[6]);
|
|
|
|
display.curveTo(layer, cp1x, cp1y, cp2x, cp2y, x, y);
|
|
|
|
},
|
|
|
|
"disconnect" : function handleDisconnect(parameters) {
|
|
|
|
// Explicitly tear down connection
|
|
guac_client.disconnect();
|
|
|
|
},
|
|
|
|
"dispose": function(parameters) {
|
|
|
|
var layer_index = parseInt(parameters[0]);
|
|
|
|
// If visible layer, remove from parent
|
|
if (layer_index > 0) {
|
|
|
|
// Remove from parent
|
|
var layer = getLayer(layer_index);
|
|
display.dispose(layer);
|
|
|
|
// Delete reference
|
|
delete layers[layer_index];
|
|
|
|
}
|
|
|
|
// If buffer, just delete reference
|
|
else if (layer_index < 0)
|
|
delete layers[layer_index];
|
|
|
|
// Attempting to dispose the root layer currently has no effect.
|
|
|
|
},
|
|
|
|
"distort": function(parameters) {
|
|
|
|
var layer_index = parseInt(parameters[0]);
|
|
var a = parseFloat(parameters[1]);
|
|
var b = parseFloat(parameters[2]);
|
|
var c = parseFloat(parameters[3]);
|
|
var d = parseFloat(parameters[4]);
|
|
var e = parseFloat(parameters[5]);
|
|
var f = parseFloat(parameters[6]);
|
|
|
|
// Only valid for visible layers (not buffers)
|
|
if (layer_index >= 0) {
|
|
var layer = getLayer(layer_index);
|
|
display.distort(layer, a, b, c, d, e, f);
|
|
}
|
|
|
|
},
|
|
|
|
"error": function(parameters) {
|
|
|
|
var reason = parameters[0];
|
|
var code = parseInt(parameters[1]);
|
|
|
|
// Call handler if defined
|
|
if (guac_client.onerror)
|
|
guac_client.onerror(new Guacamole.Status(code, reason));
|
|
|
|
guac_client.disconnect();
|
|
|
|
},
|
|
|
|
"end": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
|
|
// Get stream
|
|
var stream = streams[stream_index];
|
|
if (stream) {
|
|
|
|
// Signal end of stream if handler defined
|
|
if (stream.onend)
|
|
stream.onend();
|
|
|
|
// Invalidate stream
|
|
delete streams[stream_index];
|
|
|
|
}
|
|
|
|
},
|
|
|
|
"file": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var mimetype = parameters[1];
|
|
var filename = parameters[2];
|
|
|
|
// Create stream
|
|
if (guac_client.onfile) {
|
|
var stream = streams[stream_index] = new Guacamole.InputStream(guac_client, stream_index);
|
|
guac_client.onfile(stream, mimetype, filename);
|
|
}
|
|
|
|
// Otherwise, unsupported
|
|
else
|
|
guac_client.sendAck(stream_index, "File transfer unsupported", 0x0100);
|
|
|
|
},
|
|
|
|
"filesystem" : function handleFilesystem(parameters) {
|
|
|
|
var objectIndex = parseInt(parameters[0]);
|
|
var name = parameters[1];
|
|
|
|
// Create object, if supported
|
|
if (guac_client.onfilesystem) {
|
|
var object = objects[objectIndex] = new Guacamole.Object(guac_client, objectIndex);
|
|
guac_client.onfilesystem(object, name);
|
|
}
|
|
|
|
// If unsupported, simply ignore the availability of the filesystem
|
|
|
|
},
|
|
|
|
"identity": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
|
|
display.setTransform(layer, 1, 0, 0, 1, 0, 0);
|
|
|
|
},
|
|
|
|
"img": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var channelMask = parseInt(parameters[1]);
|
|
var layer = getLayer(parseInt(parameters[2]));
|
|
var mimetype = parameters[3];
|
|
var x = parseInt(parameters[4]);
|
|
var y = parseInt(parameters[5]);
|
|
|
|
// Create stream
|
|
var stream = streams[stream_index] = new Guacamole.InputStream(guac_client, stream_index);
|
|
var reader = new Guacamole.DataURIReader(stream, mimetype);
|
|
|
|
// Draw image when stream is complete
|
|
reader.onend = function drawImageBlob() {
|
|
display.setChannelMask(layer, channelMask);
|
|
display.draw(layer, x, y, reader.getURI());
|
|
};
|
|
|
|
},
|
|
|
|
"jpeg": function(parameters) {
|
|
|
|
var channelMask = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var x = parseInt(parameters[2]);
|
|
var y = parseInt(parameters[3]);
|
|
var data = parameters[4];
|
|
|
|
display.setChannelMask(layer, channelMask);
|
|
display.draw(layer, x, y, "data:image/jpeg;base64," + data);
|
|
|
|
},
|
|
|
|
"lfill": function(parameters) {
|
|
|
|
var channelMask = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var srcLayer = getLayer(parseInt(parameters[2]));
|
|
|
|
display.setChannelMask(layer, channelMask);
|
|
display.fillLayer(layer, srcLayer);
|
|
|
|
},
|
|
|
|
"line": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var x = parseInt(parameters[1]);
|
|
var y = parseInt(parameters[2]);
|
|
|
|
display.lineTo(layer, x, y);
|
|
|
|
},
|
|
|
|
"lstroke": function(parameters) {
|
|
|
|
var channelMask = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var srcLayer = getLayer(parseInt(parameters[2]));
|
|
|
|
display.setChannelMask(layer, channelMask);
|
|
display.strokeLayer(layer, srcLayer);
|
|
|
|
},
|
|
|
|
"mouse" : function handleMouse(parameters) {
|
|
|
|
var x = parseInt(parameters[0]);
|
|
var y = parseInt(parameters[1]);
|
|
|
|
// Display and move software cursor to received coordinates
|
|
display.showCursor(true);
|
|
display.moveCursor(x, y);
|
|
|
|
},
|
|
|
|
"move": function(parameters) {
|
|
|
|
var layer_index = parseInt(parameters[0]);
|
|
var parent_index = parseInt(parameters[1]);
|
|
var x = parseInt(parameters[2]);
|
|
var y = parseInt(parameters[3]);
|
|
var z = parseInt(parameters[4]);
|
|
|
|
// Only valid for non-default layers
|
|
if (layer_index > 0 && parent_index >= 0) {
|
|
var layer = getLayer(layer_index);
|
|
var parent = getLayer(parent_index);
|
|
display.move(layer, parent, x, y, z);
|
|
}
|
|
|
|
},
|
|
|
|
"name": function(parameters) {
|
|
if (guac_client.onname) guac_client.onname(parameters[0]);
|
|
},
|
|
|
|
"nest": function(parameters) {
|
|
var parser = getParser(parseInt(parameters[0]));
|
|
parser.receive(parameters[1]);
|
|
},
|
|
|
|
"pipe": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var mimetype = parameters[1];
|
|
var name = parameters[2];
|
|
|
|
// Create stream
|
|
if (guac_client.onpipe) {
|
|
var stream = streams[stream_index] = new Guacamole.InputStream(guac_client, stream_index);
|
|
guac_client.onpipe(stream, mimetype, name);
|
|
}
|
|
|
|
// Otherwise, unsupported
|
|
else
|
|
guac_client.sendAck(stream_index, "Named pipes unsupported", 0x0100);
|
|
|
|
},
|
|
|
|
"png": function(parameters) {
|
|
|
|
var channelMask = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var x = parseInt(parameters[2]);
|
|
var y = parseInt(parameters[3]);
|
|
var data = parameters[4];
|
|
|
|
display.setChannelMask(layer, channelMask);
|
|
display.draw(layer, x, y, "data:image/png;base64," + data);
|
|
|
|
},
|
|
|
|
"pop": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
|
|
display.pop(layer);
|
|
|
|
},
|
|
|
|
"push": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
|
|
display.push(layer);
|
|
|
|
},
|
|
|
|
"rect": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var x = parseInt(parameters[1]);
|
|
var y = parseInt(parameters[2]);
|
|
var w = parseInt(parameters[3]);
|
|
var h = parseInt(parameters[4]);
|
|
|
|
display.rect(layer, x, y, w, h);
|
|
|
|
},
|
|
|
|
"reset": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
|
|
display.reset(layer);
|
|
|
|
},
|
|
|
|
"set": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var name = parameters[1];
|
|
var value = parameters[2];
|
|
|
|
// Call property handler if defined
|
|
var handler = layerPropertyHandlers[name];
|
|
if (handler)
|
|
handler(layer, value);
|
|
|
|
},
|
|
|
|
"shade": function(parameters) {
|
|
|
|
var layer_index = parseInt(parameters[0]);
|
|
var a = parseInt(parameters[1]);
|
|
|
|
// Only valid for visible layers (not buffers)
|
|
if (layer_index >= 0) {
|
|
var layer = getLayer(layer_index);
|
|
display.shade(layer, a);
|
|
}
|
|
|
|
},
|
|
|
|
"size": function(parameters) {
|
|
|
|
var layer_index = parseInt(parameters[0]);
|
|
var layer = getLayer(layer_index);
|
|
var width = parseInt(parameters[1]);
|
|
var height = parseInt(parameters[2]);
|
|
|
|
display.resize(layer, width, height);
|
|
|
|
},
|
|
|
|
"start": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var x = parseInt(parameters[1]);
|
|
var y = parseInt(parameters[2]);
|
|
|
|
display.moveTo(layer, x, y);
|
|
|
|
},
|
|
|
|
"sync": function(parameters) {
|
|
|
|
var timestamp = parseInt(parameters[0]);
|
|
|
|
// Flush display, send sync when done
|
|
display.flush(function displaySyncComplete() {
|
|
|
|
// Synchronize all audio players
|
|
for (var index in audioPlayers) {
|
|
var audioPlayer = audioPlayers[index];
|
|
if (audioPlayer)
|
|
audioPlayer.sync();
|
|
}
|
|
|
|
// Send sync response to server
|
|
if (timestamp !== currentTimestamp) {
|
|
tunnel.sendMessage("sync", timestamp);
|
|
currentTimestamp = timestamp;
|
|
}
|
|
|
|
});
|
|
|
|
// If received first update, no longer waiting.
|
|
if (currentState === STATE_WAITING)
|
|
setState(STATE_CONNECTED);
|
|
|
|
// Call sync handler if defined
|
|
if (guac_client.onsync)
|
|
guac_client.onsync(timestamp);
|
|
|
|
},
|
|
|
|
"transfer": function(parameters) {
|
|
|
|
var srcL = getLayer(parseInt(parameters[0]));
|
|
var srcX = parseInt(parameters[1]);
|
|
var srcY = parseInt(parameters[2]);
|
|
var srcWidth = parseInt(parameters[3]);
|
|
var srcHeight = parseInt(parameters[4]);
|
|
var function_index = parseInt(parameters[5]);
|
|
var dstL = getLayer(parseInt(parameters[6]));
|
|
var dstX = parseInt(parameters[7]);
|
|
var dstY = parseInt(parameters[8]);
|
|
|
|
/* SRC */
|
|
if (function_index === 0x3)
|
|
display.put(srcL, srcX, srcY, srcWidth, srcHeight,
|
|
dstL, dstX, dstY);
|
|
|
|
/* Anything else that isn't a NO-OP */
|
|
else if (function_index !== 0x5)
|
|
display.transfer(srcL, srcX, srcY, srcWidth, srcHeight,
|
|
dstL, dstX, dstY, Guacamole.Client.DefaultTransferFunction[function_index]);
|
|
|
|
},
|
|
|
|
"transform": function(parameters) {
|
|
|
|
var layer = getLayer(parseInt(parameters[0]));
|
|
var a = parseFloat(parameters[1]);
|
|
var b = parseFloat(parameters[2]);
|
|
var c = parseFloat(parameters[3]);
|
|
var d = parseFloat(parameters[4]);
|
|
var e = parseFloat(parameters[5]);
|
|
var f = parseFloat(parameters[6]);
|
|
|
|
display.transform(layer, a, b, c, d, e, f);
|
|
|
|
},
|
|
|
|
"undefine" : function handleUndefine(parameters) {
|
|
|
|
// Get object
|
|
var objectIndex = parseInt(parameters[0]);
|
|
var object = objects[objectIndex];
|
|
|
|
// Signal end of object definition
|
|
if (object && object.onundefine)
|
|
object.onundefine();
|
|
|
|
},
|
|
|
|
"video": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var layer = getLayer(parseInt(parameters[1]));
|
|
var mimetype = parameters[2];
|
|
|
|
// Create stream
|
|
var stream = streams[stream_index] =
|
|
new Guacamole.InputStream(guac_client, stream_index);
|
|
|
|
// Get player instance via callback
|
|
var videoPlayer = null;
|
|
if (guac_client.onvideo)
|
|
videoPlayer = guac_client.onvideo(stream, layer, mimetype);
|
|
|
|
// If unsuccessful, try to use a default implementation
|
|
if (!videoPlayer)
|
|
videoPlayer = Guacamole.VideoPlayer.getInstance(stream, layer, mimetype);
|
|
|
|
// If we have successfully retrieved an video player, send success response
|
|
if (videoPlayer) {
|
|
videoPlayers[stream_index] = videoPlayer;
|
|
guac_client.sendAck(stream_index, "OK", 0x0000);
|
|
}
|
|
|
|
// Otherwise, mimetype must be unsupported
|
|
else
|
|
guac_client.sendAck(stream_index, "BAD TYPE", 0x030F);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
tunnel.oninstruction = function(opcode, parameters) {
|
|
|
|
var handler = instructionHandlers[opcode];
|
|
if (handler)
|
|
handler(parameters);
|
|
|
|
};
|
|
|
|
/**
|
|
* Sends a disconnect instruction to the server and closes the tunnel.
|
|
*/
|
|
this.disconnect = function() {
|
|
|
|
// Only attempt disconnection not disconnected.
|
|
if (currentState != STATE_DISCONNECTED
|
|
&& currentState != STATE_DISCONNECTING) {
|
|
|
|
setState(STATE_DISCONNECTING);
|
|
|
|
// Stop ping
|
|
if (pingInterval)
|
|
window.clearInterval(pingInterval);
|
|
|
|
// Send disconnect message and disconnect
|
|
tunnel.sendMessage("disconnect");
|
|
tunnel.disconnect();
|
|
setState(STATE_DISCONNECTED);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Connects the underlying tunnel of this Guacamole.Client, passing the
|
|
* given arbitrary data to the tunnel during the connection process.
|
|
*
|
|
* @param data Arbitrary connection data to be sent to the underlying
|
|
* tunnel during the connection process.
|
|
* @throws {Guacamole.Status} If an error occurs during connection.
|
|
*/
|
|
this.connect = function(data) {
|
|
|
|
setState(STATE_CONNECTING);
|
|
|
|
try {
|
|
tunnel.connect(data);
|
|
}
|
|
catch (status) {
|
|
setState(STATE_IDLE);
|
|
throw status;
|
|
}
|
|
|
|
// Ping every 5 seconds (ensure connection alive)
|
|
pingInterval = window.setInterval(function() {
|
|
tunnel.sendMessage("nop");
|
|
}, 5000);
|
|
|
|
setState(STATE_WAITING);
|
|
};
|
|
|
|
};
|
|
|
|
/**
|
|
* Map of all Guacamole binary raster operations to transfer functions.
|
|
* @private
|
|
*/
|
|
Guacamole.Client.DefaultTransferFunction = {
|
|
|
|
/* BLACK */
|
|
0x0: function (src, dst) {
|
|
dst.red = dst.green = dst.blue = 0x00;
|
|
},
|
|
|
|
/* WHITE */
|
|
0xF: function (src, dst) {
|
|
dst.red = dst.green = dst.blue = 0xFF;
|
|
},
|
|
|
|
/* SRC */
|
|
0x3: function (src, dst) {
|
|
dst.red = src.red;
|
|
dst.green = src.green;
|
|
dst.blue = src.blue;
|
|
dst.alpha = src.alpha;
|
|
},
|
|
|
|
/* DEST (no-op) */
|
|
0x5: function (src, dst) {
|
|
// Do nothing
|
|
},
|
|
|
|
/* Invert SRC */
|
|
0xC: function (src, dst) {
|
|
dst.red = 0xFF & ~src.red;
|
|
dst.green = 0xFF & ~src.green;
|
|
dst.blue = 0xFF & ~src.blue;
|
|
dst.alpha = src.alpha;
|
|
},
|
|
|
|
/* Invert DEST */
|
|
0xA: function (src, dst) {
|
|
dst.red = 0xFF & ~dst.red;
|
|
dst.green = 0xFF & ~dst.green;
|
|
dst.blue = 0xFF & ~dst.blue;
|
|
},
|
|
|
|
/* AND */
|
|
0x1: function (src, dst) {
|
|
dst.red = ( src.red & dst.red);
|
|
dst.green = ( src.green & dst.green);
|
|
dst.blue = ( src.blue & dst.blue);
|
|
},
|
|
|
|
/* NAND */
|
|
0xE: function (src, dst) {
|
|
dst.red = 0xFF & ~( src.red & dst.red);
|
|
dst.green = 0xFF & ~( src.green & dst.green);
|
|
dst.blue = 0xFF & ~( src.blue & dst.blue);
|
|
},
|
|
|
|
/* OR */
|
|
0x7: function (src, dst) {
|
|
dst.red = ( src.red | dst.red);
|
|
dst.green = ( src.green | dst.green);
|
|
dst.blue = ( src.blue | dst.blue);
|
|
},
|
|
|
|
/* NOR */
|
|
0x8: function (src, dst) {
|
|
dst.red = 0xFF & ~( src.red | dst.red);
|
|
dst.green = 0xFF & ~( src.green | dst.green);
|
|
dst.blue = 0xFF & ~( src.blue | dst.blue);
|
|
},
|
|
|
|
/* XOR */
|
|
0x6: function (src, dst) {
|
|
dst.red = ( src.red ^ dst.red);
|
|
dst.green = ( src.green ^ dst.green);
|
|
dst.blue = ( src.blue ^ dst.blue);
|
|
},
|
|
|
|
/* XNOR */
|
|
0x9: function (src, dst) {
|
|
dst.red = 0xFF & ~( src.red ^ dst.red);
|
|
dst.green = 0xFF & ~( src.green ^ dst.green);
|
|
dst.blue = 0xFF & ~( src.blue ^ dst.blue);
|
|
},
|
|
|
|
/* AND inverted source */
|
|
0x4: function (src, dst) {
|
|
dst.red = 0xFF & (~src.red & dst.red);
|
|
dst.green = 0xFF & (~src.green & dst.green);
|
|
dst.blue = 0xFF & (~src.blue & dst.blue);
|
|
},
|
|
|
|
/* OR inverted source */
|
|
0xD: function (src, dst) {
|
|
dst.red = 0xFF & (~src.red | dst.red);
|
|
dst.green = 0xFF & (~src.green | dst.green);
|
|
dst.blue = 0xFF & (~src.blue | dst.blue);
|
|
},
|
|
|
|
/* AND inverted destination */
|
|
0x2: function (src, dst) {
|
|
dst.red = 0xFF & ( src.red & ~dst.red);
|
|
dst.green = 0xFF & ( src.green & ~dst.green);
|
|
dst.blue = 0xFF & ( src.blue & ~dst.blue);
|
|
},
|
|
|
|
/* OR inverted destination */
|
|
0xB: function (src, dst) {
|
|
dst.red = 0xFF & ( src.red | ~dst.red);
|
|
dst.green = 0xFF & ( src.green | ~dst.green);
|
|
dst.blue = 0xFF & ( src.blue | ~dst.blue);
|
|
}
|
|
|
|
};
|