TECHNIQUES FOR USE OF SNAPSHOTS WITH BROWSING TRANSITIONS

• US 20120311429A1
• Filed: 09/02/2011
• Published: 12/06/2012
• Est. Priority Date: 06/05/2011
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: DECKER, KEVIN W., ADLER, DARIN B., DAKIN, BETH M., EIDSON, BRADY K., FEDERIGHI, CRAIG M.
• Granted Patent: US 8,661,337 B2
• Time in Patent Office: Days
• US Class Current: 715/234
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: G06F 40/14 Tree-structured documents parsing G06F40/205; validation G06F40/226
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]

Abstract

A snapshot of a page is stored in response to navigation away from the page. When the user navigates back to the page, the snapshot is displayed while the page is loaded. When the page is sufficiently loaded, the snapshot is replaced by the (fully or partially) loaded page. Determining whether the page is sufficiently loaded is based on monitoring of pre-selected criteria.

Claims

1. A method comprising:

storing a snapshot of a page in response to navigation away from the page;

displaying the snapshot in response to navigation back to the page;

replacing the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria.

2. The method of claim 1 wherein the pre-selected criteria comprise one or more of:

page complexity, page loading status, render tree size, DOM tree characteristics, outstanding network requests, and/or user input.

3. The method of claim 1 wherein replacing the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprises:

determining an original page complexity;

determining a subsequent page complexity;

comparing the original page complexity to the subsequent page complexity;

replacing the snapshot with the current version of the page if the if the subsequent page complexity exceeds a specified amount less than the original complexity.

4. The method of claim 3 wherein the specified amount comprises 50%.

5. The method of claim 3 wherein determining the original page complexity comprises determining an original render tree size, and determining the subsequent page complexity comprises determining a subsequent render tree size.

6. The method of claim 3 wherein determining the original page complexity comprises determining an original DOM tree size, and determining the subsequent page complexity comprises determining a subsequent DOM tree size.

7. The method of claim 1 wherein replacing the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprises:

receiving a page load complete indication; and

determining there are no outstanding network requests.

8. The method of claim 1 wherein navigation back to the page occurs in response to a swipe motion by a user on a touch interface.

9. The method of claim 8 wherein the touch interface comprises a touch screen.

10. The method of claim 8 wherein the touch interface comprises a touch pad.

11. The method of claim 1 wherein the current version of the page comprises a fully-loaded current version of the page.

12. The method of claim 1 wherein the current version of the page comprises a partially-loaded current version of the page.

13. A computer-readable medium having stored thereon instructions that, when executed, cause one or more processors to:

store a snapshot of a page in response to navigation away from the page;

display the snapshot in response to navigation back to the page;

replace the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria.

14. The computer-readable medium of claim 13 wherein the pre-selected criteria comprise one or more of:

page complexity, page loading status, render tree size, DOM tree characteristics, outstanding network requests, and/or user input.

15. The computer-readable medium of claim 13 wherein the instructions that cause the one or more processors to replace the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprise instructions that, when executed, cause the one or more processors to:

determine an original page complexity;

determine a subsequent page complexity;

compare the original page complexity to the subsequent page complexity;

replace the snapshot with the current version of the page if the if the subsequent page complexity exceeds a specified amount less than the original complexity.

16. The computer-readable medium of claim 15 wherein the specified amount comprises 50%.

17. The computer-readable medium of claim 15 wherein determining the original page complexity comprises determining an original render tree size, and determining the subsequent page complexity comprises determining a subsequent render tree size.

18. The computer-readable medium of claim 15 wherein determining the original page complexity comprises determining an original DOM tree size, and determining the subsequent page complexity comprises determining a subsequent DOM tree size.

19. The computer-readable medium of claim 13 wherein the instructions that cause the one or more processors to replace the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprise instructions that, when executed, cause the one or more processors to:

receive a page load complete indication; and

determine there are no outstanding network requests.

20. The computer-readable medium of claim 13 wherein navigation back to the page occurs in response to a swipe motion by a user on a touch interface.

21. The computer-readable medium of claim 20 wherein the touch interface comprises a touch screen.

22. The computer-readable medium of claim 20 wherein the touch interface comprises a touch pad.

23. The computer-readable medium of claim 13 wherein the current version of the page comprises a fully-loaded current version of the page.

24. The computer-readable medium of claim 13 wherein the current version of the page comprises a partially-loaded current version of the page.

25. An apparatus comprising:

means for storing a snapshot of a page in response to navigation away from the page;

means for displaying the snapshot in response to navigation back to the page;

means for replacing the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria.

26. The apparatus of claim 25 wherein the means for replacing the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprises:

means for determining an original page complexity;

means for determining a subsequent page complexity;

means for comparing the original page complexity to the subsequent page complexity;

means for replacing the snapshot with the current version of the page if the if the subsequent page complexity exceeds a specified amount less than the original complexity.

27. A computing system comprising:

a display device;

one or more processors coupled to cause images to be displayed on the display device, the one or more processors to run a browser application responsive to user input, the one or more processors to store a snapshot of a page in response to navigation away from the page, to display the snapshot in response to navigation back to the page, and to replace the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria.

28. The computing system of claim 27 wherein the pre-selected criteria comprise one or more of:

page complexity, page loading status, render tree size, DOM tree characteristics, outstanding network requests, and/or user input.

29. The computing system of claim 27 wherein the instructions that cause the one or more processors to replace the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprise instructions that, when executed, cause the one or more processors to determine an original page complexity, to determine a subsequent page complexity, to compare the original page complexity to the subsequent page complexity, to replace the snapshot with the current version of the page if the if the subsequent page complexity exceeds a specified amount less than the original complexity.

30. The computing system of claim 29 wherein the specified amount comprises 50%.

31. The computing system of claim 29 wherein determining the original page complexity comprises determining an original render tree size, and determining the subsequent page complexity comprises determining a subsequent render tree size.

32. The computing system of claim 29 wherein determining the original page complexity comprises determining an original DOM tree size, and determining the subsequent page complexity comprises determining a subsequent DOM tree size.

33. The computing system of claim 27 wherein the instructions that cause the one or more processors to replace the snapshot with a current version of the page in response to loading of the current version of the page meeting pre-selected criteria comprise instructions that, when executed, cause the one or more processors to receive a page load complete indication, and to determine there are no outstanding network requests.

34. The computing system of claim 27 wherein navigation back to the page occurs in response to a swipe motion by a user on a touch interface.

35. The computing system of claim 34 wherein the touch interface comprises a touch screen.

36. The computing system of claim 34 wherein the touch interface comprises a touch pad.

37. The computing system of claim 27 wherein the current version of the page comprises a fully-loaded current version of the page.

38. The computing system of claim 27 wherein the current version of the page comprises a partially-loaded current version of the page.