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GUAC-932: Save thumbnail upon disconnect.

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Michael Jumper
2014-11-30 04:05:13 -08:00
parent c8991a2a02
commit eb8e27a6f3
2 changed files with 31 additions and 7 deletions
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28
guacamole/src/main/webapp/app/client/directives/guacClient.js
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@@ -125,6 +125,7 @@ angular.module('client').directive('guacClient', [function guacClient() {
var $window = $injector.get('$window'),
guacAudio = $injector.get('guacAudio'),
guacVideo = $injector.get('guacVideo'),
guacHistory = $injector.get('guacHistory'),
guacTunnelFactory = $injector.get('guacTunnelFactory'),
guacClientFactory = $injector.get('guacClientFactory'),
authenticationService = $injector.get('authenticationService');
@@ -298,12 +299,37 @@ angular.module('client').directive('guacClient', [function guacClient() {
*/
// Connect to given ID whenever ID changes
$scope.$watch('id', function(id) {
$scope.$watch('id', function(id, previousID) {
// If a client is already attached, ensure it is disconnected
if (client)
client.disconnect();
// Update stored thumbnail of previous connection
if (previousID && display && display.getWidth() >= 0 && display.getHeight() >= 0) {
// Get screenshot
var canvas = display.flatten();
// Calculate scale of thumbnail (max 320x240, max zoom 100%)
var scale = Math.min(320 / canvas.width, 240 / canvas.height, 1);
// Create thumbnail canvas
var thumbnail = document.createElement("canvas");
thumbnail.width = canvas.width*scale;
thumbnail.height = canvas.height*scale;
// Scale screenshot to thumbnail
var context = thumbnail.getContext("2d");
context.drawImage(canvas,
0, 0, canvas.width, canvas.height,
0, 0, thumbnail.width, thumbnail.height
);
guacHistory.updateThumbnail(previousID, thumbnail.toDataURL("image/png"));
}
// Only proceed if a new client is attached
if (!id)
return;