Fix bug introduced in 11fb32:
When loading an encrypted thumbnail, QML lacks the decryption dict for
half a second at first.
When calling python like this, python calls the wrong matrix API
for fetching the encrypted thumbnail, and the added retry code
would be forever stuck.
The retry code has been moved to QML, and now works for all HImage.
Current features:
- Show scaled up thumbnail while the full image is loading
- Click to alternate between scaling mode (or reset zoom if not 1x)
- Click outside of image to close
- Double click to toggle fullscreen
- Middle click to open externally (also for thumbnail in timeline)
- Right click anywhere to close
- Ctrl+wheel to zoom
- Click-drag to pan when image larger than window
Will be used to show a preview before uploading image from clipboard.
Transforming the clipboard image to PNG (or any other real format) is
slow and freezes the GUI, with the provider we can display it directly.
If the room pane is below the default width (by user resizing or because
of narrow window), go to the room settings or a member profile will
automatically expand it as needed.
The pane goes back to its previous size once the settings/profile is
left.
If the window is narrow enough that expanding the pane normally would
reduce the timeline's width past its minimum, the pane is shown as an
overlay instead.
If the account passed to `saved_accounts.update()` doesn't exist in the
config file, return instead of failing with a KeyError.
An account can be absent from the file if "Remember my account" was
unchecked on login, or if the file hasn't been updated yet on disk after
login (race condition).
Enter/Return/Menu: open device menu
Space: toggle check device
Escape: uncheck all
Alt+R/F5: refresh device list
Alt+S/Delete: sign out checked or all sessions
