A project-tab group goes fullscreen through simple fullscreen, which is_fullscreen() doesn't report, so with the default "prefer tabs in full screen only" a project opened over a fullscreen group came up as a floating window. The new-project tab target now also counts simple fullscreen.
Fixes#1438
Native fullscreen gives every window its own Space, so switching projects in a fullscreen window group left one Space and entered another: the desktop showed in between, and quick switching could drop out of fullscreen.
A grouped window now uses simple fullscreen for every member at once; switching projects only shows one window and hides the others. The green button, the system Enter Full Screen item and Toggle Full Screen take this path for grouped windows, which keep their window buttons; ungrouped windows keep native fullscreen. Menu bar and Dock auto-hide while any window is in simple fullscreen, and detaching or closing a tab keeps the rest of the group fullscreen.
Compare with Local, Compare Versions and the other revision comparisons open in a separate window that belongs to their project window. The window can be moved outside the main window, resized from its edges and corners, and shows the full diff. Edits made there and in the project window are mirrored both ways.
Root cause of #798: the comparison was an in-window dialog with a fixed size.
Settings and comparison windows now share one auxiliary-window mechanism (`AuxKind`, `open_auxiliary_window`). It handles labels, the title bar, placement over the parent, event forwarding, document-edit mirroring, menu routing, closing together with the parent, and remembered geometry per kind.
Co-authored-by: xdpan1234 <[email protected]>
Project windows only joined a tab group when merged explicitly or restored at startup; the macOS "Prefer tabs when opening documents" setting was never read, so opening another project or a workspace always created a separate window.
New project windows now follow that preference: with Always they join the active project window's tab group (forming one if needed) and are selected; with In Full Screen they do so only while the active window is full screen; with Manually they stay separate. This covers every path that creates a project window — Open, recent projects, workspaces, drag and drop, and opening from the command line or Finder — while LightEdit windows and restored groups keep their behaviour. New Workspace now opens through the same Open project in policy as Open Workspace, and a race when toggling full screen during the join is fixed.
Fixes#678
l0ng-ai
xdpan1234таxdpan1234