Restricting a screen transition instruction based on a status of execution of a job instructed by a web server

摘要

With an information processing apparatus, if a user operates a “back” button of a web browser while a job is being executed, a script for controlling the job currently being executed is lost, and the job can no longer be controlled. An information processing apparatus of the present invention can communicate with a web server, and includes a web browser that displays an operation screen provided by the web server. This information processing apparatus manages the status of a job to be executed, and restricts acceptance of an instruction for screen transition from the user according to the managed status of the job while the job instructed by the web server is being executed.

主权项

1. An image reading apparatus having a display unit, comprising:
a scanning device configured to scan an image on an original document; a receiver configured to receive, from a web server, screen data for displaying a plurality of scan screens, and script data for controlling the scanning device; and a control unit configured to analyze the screen data by a web browser and to control the display unit to display, in a web browser screen, one of the plurality of scan screens based on an analysis result of the screen data, together with a back button used to perform a user's operation for screen transition to another scan screen that was displayed just before a scan screen that is currently displayed in the web browser screen, wherein the plurality of scan screens are displayed in turn in accordance with a user's operation or the screen data, and include a first scan screen on which a start button for causing the scanning device to start scanning of the image is displayed and a second scan screen which is displayed, while the scanning is being executed, for standing-by until a user's subsequent operation is performed, wherein the control unit is further configured to i) analyze the script data by the web browser and to control the scanning device to start the scanning of the image based on an analysis result of the script data, in response to a user's operation of the start button on the first scan screen displayed in the web browser screen, ii) when the scanning of the image is started by the scanning device, control the display unit to perform screen transition from the first scan screen to the second scan screen among the plurality of scan screens, and iii) control to enable a user's operation of the back button displayed in the web browser screen while the first scan screen is displayed in the web browser screen, and to disable a user's operation of the back button displayed in the web browser screen while the second scan screen is displayed in the web browser screen.