mirror of
https://github.com/gyurix1968/guacamole-client.git
synced 2025-09-06 13:17:41 +00:00
1353 lines
40 KiB
JavaScript
1353 lines
40 KiB
JavaScript
/*
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* Copyright (C) 2013 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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var Guacamole = Guacamole || {};
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/**
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* Guacamole protocol client. Given a {@link Guacamole.Tunnel},
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* automatically handles incoming and outgoing Guacamole instructions via the
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* provided tunnel, updating its display using one or more canvas elements.
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*
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* @constructor
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* @param {Guacamole.Tunnel} tunnel The tunnel to use to send and receive
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* Guacamole instructions.
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*/
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Guacamole.Client = function(tunnel) {
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var guac_client = this;
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var STATE_IDLE = 0;
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var STATE_CONNECTING = 1;
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var STATE_WAITING = 2;
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var STATE_CONNECTED = 3;
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var STATE_DISCONNECTING = 4;
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var STATE_DISCONNECTED = 5;
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var currentState = STATE_IDLE;
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var currentTimestamp = 0;
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var pingInterval = null;
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/**
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* Translation from Guacamole protocol line caps to Layer line caps.
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* @private
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*/
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var lineCap = {
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0: "butt",
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1: "round",
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2: "square"
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};
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/**
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* Translation from Guacamole protocol line caps to Layer line caps.
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* @private
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*/
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var lineJoin = {
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0: "bevel",
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1: "miter",
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2: "round"
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};
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/**
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* The underlying Guacamole display.
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*/
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var display = new Guacamole.Display();
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/**
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* All available layers and buffers
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*/
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var layers = {};
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// No initial parsers
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var parsers = [];
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// No initial audio channels
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var audio_channels = [];
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// No initial streams
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var streams = [];
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/**
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* All current objects. The index of each object is dictated by the
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* Guacamole server.
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*
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* @type Guacamole.Object[]
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*/
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var objects = [];
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// Pool of available stream indices
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var stream_indices = new Guacamole.IntegerPool();
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// Array of allocated output streams by index
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var output_streams = [];
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function setState(state) {
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if (state != currentState) {
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currentState = state;
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if (guac_client.onstatechange)
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guac_client.onstatechange(currentState);
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}
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}
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function isConnected() {
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return currentState == STATE_CONNECTED
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|| currentState == STATE_WAITING;
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}
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/**
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* Returns the underlying display of this Guacamole.Client. The display
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* contains an Element which can be added to the DOM, causing the
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* display to become visible.
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*
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* @return {Guacamole.Display} The underlying display of this
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* Guacamole.Client.
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*/
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this.getDisplay = function() {
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return display;
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};
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/**
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* Sends the current size of the screen.
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*
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* @param {Number} width The width of the screen.
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* @param {Number} height The height of the screen.
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*/
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this.sendSize = function(width, height) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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tunnel.sendMessage("size", width, height);
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};
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/**
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* Sends a key event having the given properties as if the user
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* pressed or released a key.
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*
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* @param {Boolean} pressed Whether the key is pressed (true) or released
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* (false).
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* @param {Number} keysym The keysym of the key being pressed or released.
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*/
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this.sendKeyEvent = function(pressed, keysym) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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tunnel.sendMessage("key", keysym, pressed);
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};
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/**
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* Sends a mouse event having the properties provided by the given mouse
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* state.
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*
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* @param {Guacamole.Mouse.State} mouseState The state of the mouse to send
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* in the mouse event.
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*/
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this.sendMouseState = function(mouseState) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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// Update client-side cursor
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display.moveCursor(
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Math.floor(mouseState.x),
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Math.floor(mouseState.y)
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);
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// Build mask
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var buttonMask = 0;
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if (mouseState.left) buttonMask |= 1;
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if (mouseState.middle) buttonMask |= 2;
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if (mouseState.right) buttonMask |= 4;
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if (mouseState.up) buttonMask |= 8;
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if (mouseState.down) buttonMask |= 16;
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// Send message
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tunnel.sendMessage("mouse", Math.floor(mouseState.x), Math.floor(mouseState.y), buttonMask);
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};
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/**
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* Sets the clipboard of the remote client to the given text data.
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*
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* @deprecated Use createClipboardStream() instead.
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* @param {String} data The data to send as the clipboard contents.
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*/
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this.setClipboard = function(data) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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// Open stream
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var stream = guac_client.createClipboardStream("text/plain");
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var writer = new Guacamole.StringWriter(stream);
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// Send text chunks
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for (var i=0; i<data.length; i += 4096)
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writer.sendText(data.substring(i, i+4096));
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// Close stream
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writer.sendEnd();
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};
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/**
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* Opens a new file for writing, having the given index, mimetype and
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* filename.
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*
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* @param {String} mimetype The mimetype of the file being sent.
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* @param {String} filename The filename of the file being sent.
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* @return {Guacamole.OutputStream} The created file stream.
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*/
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this.createFileStream = function(mimetype, filename) {
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// Allocate index
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var index = stream_indices.next();
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// Create new stream
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tunnel.sendMessage("file", index, mimetype, filename);
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var stream = output_streams[index] = new Guacamole.OutputStream(guac_client, index);
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// Override sendEnd() of stream to automatically free index
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var old_end = stream.sendEnd;
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stream.sendEnd = function() {
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old_end();
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stream_indices.free(index);
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delete output_streams[index];
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};
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// Return new, overridden stream
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return stream;
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};
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/**
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* Opens a new pipe for writing, having the given name and mimetype.
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*
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* @param {String} mimetype The mimetype of the data being sent.
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* @param {String} name The name of the pipe.
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* @return {Guacamole.OutputStream} The created file stream.
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*/
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this.createPipeStream = function(mimetype, name) {
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// Allocate index
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var index = stream_indices.next();
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// Create new stream
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tunnel.sendMessage("pipe", index, mimetype, name);
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var stream = output_streams[index] = new Guacamole.OutputStream(guac_client, index);
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// Override sendEnd() of stream to automatically free index
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var old_end = stream.sendEnd;
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stream.sendEnd = function() {
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old_end();
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stream_indices.free(index);
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delete output_streams[index];
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};
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// Return new, overridden stream
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return stream;
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};
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/**
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* Opens a new clipboard object for writing, having the given mimetype.
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*
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* @param {String} mimetype The mimetype of the data being sent.
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* @param {String} name The name of the pipe.
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* @return {Guacamole.OutputStream} The created file stream.
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*/
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this.createClipboardStream = function(mimetype) {
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// Allocate index
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var index = stream_indices.next();
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// Create new stream
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tunnel.sendMessage("clipboard", index, mimetype);
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var stream = output_streams[index] = new Guacamole.OutputStream(guac_client, index);
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// Override sendEnd() of stream to automatically free index
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var old_end = stream.sendEnd;
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stream.sendEnd = function() {
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old_end();
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stream_indices.free(index);
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delete output_streams[index];
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};
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// Return new, overridden stream
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return stream;
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};
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/**
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* Creates a new output stream associated with the given object and having
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* the given mimetype and name. The legality of a mimetype and name is
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* dictated by the object itself.
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*
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* @param {Number} index
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* The index of the object for which the output stream is being
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* created.
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*
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* @param {String} mimetype
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* The mimetype of the data which will be sent to the output stream.
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*
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* @param {String} name
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* The defined name of an output stream within the given object.
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*
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* @returns {Guacamole.OutputStream}
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* An output stream which will write blobs to the named output stream
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* of the given object.
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*/
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this.createObjectOutputStream = function createObjectOutputStream(index, mimetype, name) {
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// Allocate index
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var streamIndex = stream_indices.next();
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// Create new stream
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tunnel.sendMessage("put", index, streamIndex, mimetype, name);
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var stream = output_streams[streamIndex] = new Guacamole.OutputStream(guac_client, streamIndex);
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// Override sendEnd() of stream to automatically free index
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var oldEnd = stream.sendEnd;
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stream.sendEnd = function freeStreamIndex() {
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oldEnd();
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stream_indices.free(streamIndex);
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delete output_streams[streamIndex];
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};
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// Return new, overridden stream
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return stream;
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};
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/**
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* Requests read access to the input stream having the given name. If
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* successful, a new input stream will be created.
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*
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* @param {Number} index
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* The index of the object from which the input stream is being
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* requested.
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*
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* @param {String} name
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* The name of the input stream to request.
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*/
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this.requestObjectInputStream = function requestObjectInputStream(index, name) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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tunnel.sendMessage("get", index, name);
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};
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/**
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* Acknowledge receipt of a blob on the stream with the given index.
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*
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* @param {Number} index The index of the stream associated with the
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* received blob.
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* @param {String} message A human-readable message describing the error
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* or status.
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* @param {Number} code The error code, if any, or 0 for success.
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*/
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this.sendAck = function(index, message, code) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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tunnel.sendMessage("ack", index, message, code);
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};
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/**
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* Given the index of a file, writes a blob of data to that file.
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*
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* @param {Number} index The index of the file to write to.
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* @param {String} data Base64-encoded data to write to the file.
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*/
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this.sendBlob = function(index, data) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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tunnel.sendMessage("blob", index, data);
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};
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/**
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* Marks a currently-open stream as complete.
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*
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* @param {Number} index The index of the stream to end.
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*/
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this.endStream = function(index) {
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// Do not send requests if not connected
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if (!isConnected())
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return;
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tunnel.sendMessage("end", index);
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};
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/**
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* Fired whenever the state of this Guacamole.Client changes.
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*
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* @event
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* @param {Number} state The new state of the client.
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*/
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this.onstatechange = null;
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/**
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* Fired when the remote client sends a name update.
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*
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* @event
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* @param {String} name The new name of this client.
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*/
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this.onname = null;
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/**
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* Fired when an error is reported by the remote client, and the connection
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* is being closed.
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*
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* @event
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* @param {Guacamole.Status} status A status object which describes the
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* error.
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*/
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this.onerror = null;
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/**
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* Fired when the clipboard of the remote client is changing.
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*
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* @event
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* @param {Guacamole.InputStream} stream The stream that will receive
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* clipboard data from the server.
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* @param {String} mimetype The mimetype of the data which will be received.
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*/
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this.onclipboard = null;
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/**
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* Fired when a file stream is created. The stream provided to this event
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* handler will contain its own event handlers for received data.
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*
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* @event
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* @param {Guacamole.InputStream} stream The stream that will receive data
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* from the server.
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* @param {String} mimetype The mimetype of the file received.
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* @param {String} filename The name of the file received.
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*/
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this.onfile = null;
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/**
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* Fired when a filesystem object is created. The object provided to this
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* event handler will contain its own event handlers and functions for
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* requesting and handling data.
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*
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* @event
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* @param {Guacamole.Object} object
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* The created filesystem object.
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*
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* @param {String} name
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* The name of the filesystem.
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*/
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this.onfilesystem = null;
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/**
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* Fired when a pipe stream is created. The stream provided to this event
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* handler will contain its own event handlers for received data;
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*
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* @event
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* @param {Guacamole.InputStream} stream The stream that will receive data
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* from the server.
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* @param {String} mimetype The mimetype of the data which will be received.
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* @param {String} name The name of the pipe.
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*/
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this.onpipe = null;
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/**
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* Fired whenever a sync instruction is received from the server, indicating
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* that the server is finished processing any input from the client and
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* has sent any results.
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*
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* @event
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* @param {Number} timestamp The timestamp associated with the sync
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* instruction.
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*/
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this.onsync = null;
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/**
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* Returns the layer with the given index, creating it if necessary.
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* Positive indices refer to visible layers, an index of zero refers to
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* the default layer, and negative indices refer to buffers.
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*
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* @param {Number} index The index of the layer to retrieve.
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* @return {Guacamole.Display.VisibleLayer|Guacamole.Layer} The layer having the given index.
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*/
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function getLayer(index) {
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// Get layer, create if necessary
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var layer = layers[index];
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if (!layer) {
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// Create layer based on index
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if (index === 0)
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layer = display.getDefaultLayer();
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else if (index > 0)
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layer = display.createLayer();
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else
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layer = display.createBuffer();
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// Add new layer
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layers[index] = layer;
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}
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return layer;
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}
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function getParser(index) {
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var parser = parsers[index];
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// If parser not yet created, create it, and tie to the
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// oninstruction handler of the tunnel.
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if (parser == null) {
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parser = parsers[index] = new Guacamole.Parser();
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parser.oninstruction = tunnel.oninstruction;
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}
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return parser;
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}
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function getAudioChannel(index) {
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var audio_channel = audio_channels[index];
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// If audio channel not yet created, create it
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if (audio_channel == null)
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audio_channel = audio_channels[index] = new Guacamole.AudioChannel();
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return audio_channel;
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}
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|
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/**
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* Handlers for all defined layer properties.
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* @private
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*/
|
|
var layerPropertyHandlers = {
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"miter-limit": function(layer, value) {
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display.setMiterLimit(layer, parseFloat(value));
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}
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};
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/**
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* Handlers for all instruction opcodes receivable by a Guacamole protocol
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* client.
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* @private
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*/
|
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var instructionHandlers = {
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"ack": function(parameters) {
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var stream_index = parseInt(parameters[0]);
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var reason = parameters[1];
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var code = parseInt(parameters[2]);
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// Get stream
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var stream = output_streams[stream_index];
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if (stream) {
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// Signal ack if handler defined
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if (stream.onack)
|
|
stream.onack(new Guacamole.Status(code, reason));
|
|
|
|
// If code is an error, invalidate stream
|
|
if (code >= 0x0100) {
|
|
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);
|
|
|
|
},
|
|
|
|
"audio": function(parameters) {
|
|
|
|
var stream_index = parseInt(parameters[0]);
|
|
var channel = getAudioChannel(parseInt(parameters[1]));
|
|
var mimetype = parameters[2];
|
|
var duration = parseFloat(parameters[3]);
|
|
|
|
// Create stream
|
|
var stream = streams[stream_index] =
|
|
new Guacamole.InputStream(guac_client, stream_index);
|
|
|
|
// Assemble entire stream as a blob
|
|
var blob_reader = new Guacamole.BlobReader(stream, mimetype);
|
|
|
|
// Play blob as audio
|
|
blob_reader.onend = function() {
|
|
channel.play(mimetype, duration, blob_reader.getBlob());
|
|
};
|
|
|
|
// Send success response
|
|
guac_client.sendAck(stream_index, "OK", 0x0000);
|
|
|
|
},
|
|
|
|
"blob": function(parameters) {
|
|
|
|
// Get stream
|
|
var stream_index = parseInt(parameters[0]);
|
|
var data = parameters[1];
|
|
var stream = streams[stream_index];
|
|
|
|
// Write data
|
|
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);
|
|
|
|
},
|
|
|
|
"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);
|
|
layer.dispose();
|
|
|
|
// 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);
|
|
layer.distort(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) {
|
|
|
|
// Get stream
|
|
var stream_index = parseInt(parameters[0]);
|
|
var stream = streams[stream_index];
|
|
|
|
// Signal end of stream
|
|
if (stream.onend)
|
|
stream.onend();
|
|
|
|
},
|
|
|
|
"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);
|
|
|
|
},
|
|
|
|
"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);
|
|
|
|
},
|
|
|
|
"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);
|
|
layer.move(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);
|
|
layer.shade(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 __send_sync_response() {
|
|
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];
|
|
var duration = parseFloat(parameters[3]);
|
|
|
|
// Create stream
|
|
var stream = streams[stream_index] =
|
|
new Guacamole.InputStream(guac_client, stream_index);
|
|
|
|
// Assemble entire stream as a blob
|
|
var blob_reader = new Guacamole.BlobReader(stream, mimetype);
|
|
|
|
// Play video once finished
|
|
blob_reader.onend = function() {
|
|
|
|
// Read data from blob from stream
|
|
var reader = new FileReader();
|
|
reader.onload = function() {
|
|
|
|
var binary = "";
|
|
var bytes = new Uint8Array(reader.result);
|
|
|
|
// Produce binary string from bytes in buffer
|
|
for (var i=0; i<bytes.byteLength; i++)
|
|
binary += String.fromCharCode(bytes[i]);
|
|
|
|
// Play video
|
|
layer.play(mimetype, duration, "data:" + mimetype + ";base64," + window.btoa(binary));
|
|
|
|
};
|
|
reader.readAsArrayBuffer(blob_reader.getBlob());
|
|
|
|
};
|
|
|
|
// Send success response
|
|
tunnel.sendMessage("ack", stream_index, "OK", 0x0000);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
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("sync", currentTimestamp);
|
|
}, 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);
|
|
}
|
|
|
|
};
|