D28277: [UrlButton] Don't show tooltip if it would be empty

[Nathaniel Graham]

ngraham added reviewers: VDG, Kirigami.
ngraham added a comment.


  If `button.url` is undefined, then the whole thing won't work in the first place. Maybe instead the control could disable itself automatically, or change its color to red to indicate a broken link?

REPOSITORY
  R169 Kirigami

REVISION DETAIL
  https://phabricator.kde.org/D28277

To: broulik, mart, #vdg, #kirigami
Cc: ngraham, plasma-devel, fbampaloukas, GB_2, domson, dkardarakos, apol, ahiemstra, davidedmundson, mart
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