XFA - Add a storage to save fields values

[calixteman]

• this is required to be able to print (or save) a document. Some pages can be unloaded (because pdf.js is lazy) and this storage will help to save their data in order to resuse them when printing or just when displaying a page again.

[brendandahl]

Will this be needed if we keep all pages in cache?

[Snuffleupagus]

Will this be needed if we keep all pages in cache?

That would be breaking some very old/basic assumptions in the viewer, since only one-page documents are ever guaranteed to be fully rendered at all times. Relaxing that assumption could be quite bad in the general case, for e.g. memory usage and performance, for anything except very short documents and as far as I can tell there's no guarantee that all XFA-documents are indeed "short".

[brendandahl]

/botio test

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

Command cmd_test from @brendandahl received. Current queue size: 0

Live output at: http://54.67.70.0:8877/ccff9114cf59b4e/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_test from @brendandahl received. Current queue size: 0

Live output at: http://3.101.106.178:8877/327c651165c3cba/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Failed

Full output at http://54.67.70.0:8877/ccff9114cf59b4e/output.txt

Total script time: 26.04 mins

• Font tests: Passed
• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

Image differences available at: http://54.67.70.0:8877/ccff9114cf59b4e/reftest-analyzer.html#web=eq.log

[pdfjsbot]

From: Bot.io (Windows)

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Failed

Full output at http://3.101.106.178:8877/327c651165c3cba/output.txt

Total script time: 30.68 mins

• Font tests: Passed
• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

Image differences available at: http://3.101.106.178:8877/327c651165c3cba/reftest-analyzer.html#web=eq.log