WP import: "Upload file and import" should be deactivated until a filename is entered

[lloydbudd]

WP import: "Upload file and import" should be deactivated until a filename is entered

ENV: WP trunk 3.0-beta2-14526
Mac OS / Firefox 3.6.3

Additional Details

Same issue with wp-admin/media-new.php (browser upload)

-1:

Can't find a good reason for that. Rather a useless line of javascript than an advantage. And then we need a JS and no-JS version.

ocean90, thanks for the feedback.

You think it is a good user experience to have enabled a button that shouldn't be clicked? (bug)

Maybe, I'm missing an implementation detail, but the improved experience would only be appropriate for JS enabled, and it would be trivial to degrade gracefully (the current behavior).

Then we should use it on every page.

• on Updates page, don't show the button Update plugins, if no plugin is selected
• on pages with a search, don't show the button Search, if nothing is typed in for a search
• on Add new (post/page), don't show the button Publish/Updaten, if noting has changed
• ...

So it's not really a bug, that's the UI.

Replying to ocean90:

Then we should use it on every page.

• on Updates page, don't show the button Update plugins, if no plugin is selected
• on pages with a search, don't show the button Search, if nothing is typed in for a search
• on Add new (post/page), don't show the button Publish/Updaten, if noting has changed
• ...

Those are interesting ones as well, though don't stand out for me in the same way because those are all pages with many potential work flows. If disabling there could be done *extremely* elegantly as well, then it should -- but I suspect the current browsers would result in a sometimes less than polished experience.

This is already marked as future release, so we can look at the overall experience issue and try to fix it across the board. We're trying to hit RC1 in 2 days, and I wouldn't call this a blocker.

The "disabled" HTML form attribute exists exactly for this, and should be a trivial bit of js to add. The disabled attribute is supported in all major browsers.

​W3C HTML 4.01 - 17.12 Disabled and read-only controls

In contexts where user input is either undesirable or irrelevant, it is important to be able to disable a control or render it read-only. For example, one may want to disable a form's submit button until the user has entered some required data.

Note. The only way to modify dynamically the value of the disabled attribute is through a script.

Replying to dangayle:

The "disabled" HTML form attribute exists exactly for this, and should be a trivial bit of js to add. The disabled attribute is supported in all major browsers.

Sorry, I should have said disabling a form element is trivial. Determining if it should be disabled is another thing altogether.

I'm not sure wheter common.js is the right place for this. But I didn't want to put it directly into template.php

Related: #20855

For importers, moving to WordPress.org milestone.

For similar behaviour throughout the core UI, #20855 should handle that.