https://bugs.kde.org/show_bug.cgi?id=498575
Bug ID: 498575
Summary: GlobalShortcuts BindShortcuts issues
Classification: Plasma
Product: xdg-desktop-portal-kde
Version: 6.2.5
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
A few related issues calling
org.freedesktop.portal.GlobalShortcuts.BindShortcuts:
1. Registering a new shortcut with a conflicting `preferred_trigger` will
return that trigger in `trigger_description` as if it was bound and works for
that new shortcut.
- Also happens if the conflicting `preferred_trigger` was made in the same
`BindShortcuts` call, first shortcut in the array will *actually* have the bind
applied
2. Re-registering an existing shortcut that was originally registered without a
preferred_trigger will turn any Custom shortcuts into Default shortcuts
- System settings needs to be closed for this effect. Needs to be the
_first_ BindShortcuts call of the Session (which brings me to my next point)
3. Does not conform to the spec:
- > "An application can only attempt bind shortcuts of a session once."
https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.GlobalShortcuts.html#org-freedesktop-portal-globalshortcuts-bindshortcuts
4. The `description` of the `shortcuts` array has no upper limit meaning apps
can create HUGE entries that crash systemsettings on trying to load the config
for the entry
- Users can still delete the entry just fine.
STEPS TO REPRODUCE
Create a valid GlobalShortcuts session and call BindShortcuts with:
for 1. ``` shortcuts = [( "shortcut1", {"description": "Demo Shortcut 1",
"preferred_trigger": "CTRL+1"}),
( "shortcut2", {"description": "Demo Shortcut 2",
"preferred_trigger": "CTRL+1" }) ```
for 2. ``` shortcuts = [( "shortcut1", {"description": "Demo Shortcut 1"}) ```
2a. Add some custom shortcuts binds to the shortcut with the shortcuts KCM
then close SystemSettings
2b. close then create a new GlobalShortcuts session and call BindShortcuts
with the above shortcuts array.
for 3. Do any of the above shortcuts arrays but continue calling BindShortcuts
with it.
for 4. Do any of the above shortcuts arrays but fill the description with an
absurd amount of characters like ``` insane_string = 'a' * 20 * 1024 * 1024 ```
OBSERVED RESULT
for 1. You will see both shortcuts have Ctrl+1 returned in their respective
`trigger_description`s but only shortcut1 will have Activated and Deactivated
Signals get triggered on a key press.
- Until A `ShortcutsChanged` signal that effects the misreporting shortcut
or A new dbus session is used, `ListShortcuts` calls and `ShortcutsChanged`
signals will continue to return this wrong trigger_description for the
misbehaving shortcut.
for 2. Viewing the shortcut's binds in the keybinds Settings KCM will show the
Custom shortcuts you previously bound as Default shortcuts. They are only
disableable and not removable.
for 3. After the first call they are not rejected.
for 4. Calling BindShortcuts with this shortcuts array will open systemsettings
and immediately hang/crash. Later attempts to edit the shortcuts of the entry
will crash. Can only fully delete the entry
EXPECTED RESULT
for 1. The conflicted shortcut will not have wrong info returned in
`trigger_description`
for 2. On shortcuts with no preferred_trigger user set custom shortcuts are not
turned into default shortcuts on rebind
for 3. After the first call BindShortcuts attempts are rejected.
for 4. Concatenate what is displayed in the shortcuts KCM or reject bind
attempts with huge description elements
SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Graphics Platform: Wayland
ADDITIONAL INFORMATION
I used a custom python & gtk demo app with a .desktop for testing purposes. LMK
if I should share it for testing
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