Publication of applications using server-side virtual screen change capture

A system for optimization of publication of an application to a web browser, the system comprising:

• an application server configured to run the application;
• and
• a server-side agent configured to:
• continuously monitor a virtual screen associated with the application, the virtual screen displaying video data comprising a plurality of video frames;
• capture a video frame of the plurality of the video frames for the virtual screen associated with the application;
• compare the video frame of the plurality of the video frames to a previous video frame of the plurality of the video frames of the virtual screen to detect a change in the video frame;
• based on the detection, generate an image of the change;
• and
• send the image of the change to a client device, wherein the virtual screen is re-rendered on the client device based on the image of the change and the previous video frame, the virtual screen being re-rendered by merging the previous virtual screen and the image of the change by a script running in a web browser of the client device, wherein the server-side agent captures all of the plurality of video frames of the video data;
• wherein the virtual screen is re-rendered inside a web portal associated with a workspace, the workspace including a plurality of applications.

A system for optimization of publication of an application to a web browser, the system comprising:

• a server-side agent configured to:
• continuously monitor a virtual screen associated with the application, the virtual screen displaying video data comprising a plurality of video frames;
• capture a video frame of the plurality of the video frames for the virtual screen associated with the application;
• compare the video frame of the plurality of the video frames to a previous video frame of the plurality of the video frames of the virtual screen to detect a change in the video frame;
• based on the detection, generate an image of the change;
• and
• send the image of the change to a client device, wherein the virtual screen is re-rendered on the client device based on the image of the change and the previous video frame, the virtual screen being re-rendered by merging the previous virtual screen and the image by a script running in the web browser of the client device using double buffering of video frames, wherein the server-side agent captures all of the plurality of video frames of the video data;
• wherein the virtual screen is re-rendered inside a web portal associated with a workspace, the workspace including a plurality of applications;
• and
• an application server configured to:
• run the application;
• receive, from the client device, a user action with regard to the virtual screen, the user action including one of a keyboard event and a mouse event;
• and
• in response to the user action, execute, on the application, a command corresponding to the user action, wherein the change in the video frame is caused by the execution of the command.