Reorder and selection persistence of displayed objects

1. A system to provide a thumbnail view, comprising:

a communication interface;

a processor coupled to the communication interface;

a memory coupled to the processor, the memory storing instructions executable by the processor to provide a client-side viewer framework comprising:

a thumbnail image cache configured to store thumbnail images associated with a document stored at a remote server;

a thumbnail display data store configured to store thumbnail images for display;

a viewer component configured to provide a viewer interface that includes a thumbnail display area to display thumbnail images from the thumbnail display data store;

an interaction tracking data structure to store user interaction data;

instructions executable by the processor to:

track user interactions with thumbnail images displayed in the thumbnail display area using the interaction tracking data structure to store the user interaction data, including tracking user interactions that represent changes to the document that have not been committed to the remote server;

based on a request to view a location in the document:

determine a set of thumbnail images associated with the location to display and an order in which to display the set of thumbnail images using the user interaction data in the interaction tracking data structure;

determine if each thumbnail image in the set of thumbnail images is in the thumbnail image cache;

based on a determination that one or more thumbnail images in the set of thumbnail images are not in the thumbnail image cache, retrieve the one or more thumbnail images from the remote server and cache the one or more thumbnail images in the thumbnail image cache; and

update the thumbnail display data store with the set of thumbnail images for display in the thumbnail display area of the viewer component according to determined order.

2. The system of claim 1 , wherein the client-side viewer framework comprises instructions executable to:

receive a commit changes input from the viewer component;

based on the commit changes input:

send a server request to the remote server to implement an uncommitted change to the document reflected in the interaction tracking data structure to implement the uncommitted change to the document; and

flush the uncommitted change from the interaction tracking data structure.

3. The system of claim 1 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the interaction tracking data structure comprises:

receiving a select action with respect to a first thumbnail image displayed in the thumbnail display area; and

setting a flag corresponding to the first thumbnail image to a selected state in the interaction tracking data structure.

4. The system of claim 3 , wherein the first thumbnail image is one of the set of thumbnail images and the viewer component is configured to display the first thumbnail image with a visual indication that the first thumbnail image is selected based on the flag corresponding to the first thumbnail image.

5. The system of claim 4 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the interaction tracking data structure comprises:

receiving an unselect action with respect to the first thumbnail image; and

resetting the flag corresponding to the first thumbnail image to an unselected state.

6. The system of claim 1 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the interaction tracking data structure comprises:

receiving a page delete action with respect to a first thumbnail image displayed in the thumbnail display area; and

marking a page corresponding to the first thumbnail image for deletion in the interaction tracking data structure.

7. The system of claim 1 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the interaction tracking data structure comprises:

receiving a reorder input with respect to a first thumbnail image; and

storing data indicating a new order and location of the first thumbnail image.

8. The system of claim 1 , wherein the viewer component is configured to display the set of thumbnail images in the thumbnail display area to reflect uncommitted changes tracked in the interaction tracking data structure with respect the set of thumbnail images.

9. The system of claim 1 , wherein the client-side viewer framework further comprises instructions executable to:

determine a display attribute for at least one thumbnail image in the set of thumbnail images based on the user interaction data, wherein the viewer component is configured to display the at least one thumbnail image according to the display attribute.

10. The system of claim 9 , wherein the display attribute comprises an indication of a selected state.

11. The system of claim 9 , wherein the display attribute comprises an indication of the at least one thumbnail image having been reordered.

12. The system of claim 1 , wherein the thumbnail display area is an infinite grid.

13. A computer program product comprising a non-transitory computer readable medium storing instructions executable by a processor to:

maintain a client-side thumbnail image cache configured to store thumbnail images associated with a document stored at a remote server;

maintain a client-side thumbnail display data store configured to store thumbnail images for display;

provide a client-side viewer component configured to provide a viewer interface that includes a thumbnail display area to display thumbnail images from the client-side thumbnail display data store;

maintain a client-side interaction tracking data structure to store user interaction data;

track user interactions with thumbnail images displayed in the thumbnail display area using the client-side interaction tracking data structure to store the user interaction data, including tracking user interactions that represent changes to the document that have not been committed to the remote server;

based on a request to view a location in the document:

determine a set of thumbnail images associated with the location to display and an order in which to display the set of thumbnail images using the user interaction data in the client-side interaction tracking data structure;

determine if each thumbnail image in the set of thumbnail images is in the client-side thumbnail image cache;

based on a determination that one or more thumbnail images in the set of thumbnail images are not in the client-side thumbnail image cache, retrieve the one or more thumbnail images from the remote server and cache the one or more thumbnail images in the client-side thumbnail image cache; and

update the client-side thumbnail display data store with the set of thumbnail images for display in the thumbnail display area of the client-side viewer component according to determined order.

14. The computer program product of claim 13 , further comprising instructions executable to:

receive a commit changes input from the client-side viewer component;

based on the commit changes input:

send a server request to the remote server to implement an uncommitted change to the document reflected in the client-side interaction tracking data structure to implement the uncommitted change to the document; and

flush the uncommitted change from the client-side interaction tracking data structure.

15. The computer program product of claim 13 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the client-side interaction tracking data structure comprises:

receiving a select action with respect to a first thumbnail image displayed in the thumbnail display area; and

setting a flag corresponding to the first thumbnail image to a selected state in the client-side interaction tracking data structure.

16. The computer program product of claim 15 , wherein the first thumbnail image is one of the set of thumbnail images and the client-side viewer component is configured to display the first thumbnail image with a visual indication that the first thumbnail image is selected based on the flag corresponding to the first thumbnail image.

17. The computer program product of claim 15 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the client-side interaction tracking data structure comprises:

receiving an unselect action with respect to the first thumbnail image; and

resetting the flag corresponding to the first thumbnail image to an unselected state.

18. The computer program product of claim 13 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the client-side interaction tracking data structure comprises:

receiving a page delete action with respect to a first thumbnail image displayed in the thumbnail display area; and

marking a page corresponding to the first thumbnail image for deletion in the client-side interaction tracking data structure.

19. The computer program product of claim 13 , wherein tracking user interactions with thumbnail images associated with the document stored on the remote server using the client-side interaction tracking data structure comprises:

receiving a reorder input with respect to a first thumbnail image; and

storing data indicating a new order and location of the first thumbnail image.

20. The computer program product of claim 13 , wherein the client-side viewer component is configured to display the set of thumbnail images in the thumbnail display area to reflect uncommitted changes tracked in the client-side interaction tracking data structure with respect the set of thumbnail images.

21. The computer program product of claim 13 , further comprising instructions executable to:

determine a display attribute for at least one thumbnail image in the set of thumbnail images based on the user interaction data, wherein the client-side viewer component is configured to display the at least one thumbnail image according to the display attribute.

22. The computer program product of claim 21 , wherein the display attribute comprises an indication of a selected state.

23. The computer program product of claim 21 , wherein the display attribute comprises an indication of the at least one thumbnail image having been reordered.

24. The computer program product of claim 13 , wherein the thumbnail display area is an infinite grid.