[Bug 1917010] Re: Hard to detect double-clicks on the HiDPI touchscreen system

[Kai-Heng Feng]

gnome-shell-extension-desktop-icons still uses Clutter.Settings, so the
dependency is still required.

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https://bugs.launchpad.net/bugs/1917010

Title:
  Hard to detect double-clicks on the HiDPI touchscreen system

Status in gnome-shell-extension-desktop-icons package in Ubuntu:
  Fix Released
Status in gnome-shell-extension-desktop-icons-ng package in Ubuntu:
  Fix Released
Status in gnome-shell-extension-desktop-icons source package in Focal:
  In Progress
Status in gnome-shell-extension-desktop-icons source package in Hirsute:
  In Progress
Status in gnome-shell-extension-desktop-icons-ng source package in Hirsute:
  In Progress
Status in gnome-shell-extension-desktop-icons source package in Impish:
  Fix Released
Status in gnome-shell-extension-desktop-icons-ng source package in Impish:
  Fix Released

Bug description:
  == SRU Justification ==
  [Impact]
  Double tap desktop icons on a touchscreen barely works.

  [Fix]
  Because tapping isn't as precise as clicking, ignore the double click distance as long as the icon is tapped.

  [Test]
  Roughly double tap the desktop icon and nothing happens.
  After applying the fix, double tap can 100% open the app or directory.
  [racb] Since single click code is also being adjusted, please also test that single clicking behaviour has not changed.
  [racb] Since clicking with modifiers (holding Shift and/or Ctrl) is also being adjusted, please also test that modifier clicking behaviour has not changed.

  [Where problems could occur]
  If the new code throws any exception, clicking can also be affected.

  == Original Bug Report ==
  Double-clicks touchscreen on HiDPI system, sometime it will not be detected.
  Here is a related patch on upstream
  https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1487

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