Ignoring "resize" events during printing (issue 15324)

[Snuffleupagus]

This is a quick work-around, to prevent the viewer from breaking as a result of https://bugzilla.mozilla.org/show_bug.cgi?id=774398

[Snuffleupagus]

Although it just occurred to me that this isn't really a good idea as-is, since the user can still manually re-size the browser window during printing and those events we still want to handle...
We really only want to ignore the "resize" events that come specifically from the print-preview being opened, but I don't know if and how that could be done?

[calixteman]

I logged media changes (similarly to what is done in the test case in https://bugzilla.mozilla.org/show_bug.cgi?id=774398#c0) and window resize events, one resize is triggered between "before printing" and "after printing", so maybe this one could be ignored.
A second one is triggered after the "after printing" in order to restore the size changed during the printing.

[Snuffleupagus]

I logged media changes (similarly to what is done in the test case in https://bugzilla.mozilla.org/show_bug.cgi?id=774398#c0) and window resize events, one resize is triggered between "before printing" and "after printing", so maybe this one could be ignored.

It seems like this worked, thank you!
However, note that I've only tested with the development viewer so I cannot confirm that it also fixes the Firefox built-in viewer unfortunately (and it's too hot today for me to build Firefox locally).

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

Command cmd_preview from @Snuffleupagus received. Current queue size: 0

Live output at: http://54.241.84.105:8877/641ce7637bc7169/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Success

Full output at http://54.241.84.105:8877/641ce7637bc7169/output.txt

Total script time: 2.69 mins

Published

• Viewer: http://54.241.84.105:8877/641ce7637bc7169/web/viewer.html
• Viewer (legacy): http://54.241.84.105:8877/641ce7637bc7169/legacy/web/viewer.html

[calixteman]

I'll try it with local build.
FYI, you can use the artifact mode:
https://firefox-source-docs.mozilla.org/contributing/build/artifact_builds.html
then you can update pdf.js stuff in your local clone and just run ./mach build faster (nowadays it works pretty well on Windows).
This way you don't need to build the entire Firefox which can take a while....

[calixteman]

WFM with a local build.

[calixteman]

Thank you.