Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 0280081ab6aaac803e2d58bdb17802f602b1646f
      
https://github.com/WebKit/WebKit/commit/0280081ab6aaac803e2d58bdb17802f602b1646f
  Author: Zak Ridouh <[email protected]>
  Date:   2026-01-08 (Thu, 08 Jan 2026)

  Changed paths:
    M Tools/MiniBrowser/mac/AppDelegate.h
    M Tools/MiniBrowser/mac/AppDelegate.m
    M Tools/MiniBrowser/mac/BrowserWindow.xib
    M Tools/MiniBrowser/mac/BrowserWindowController.m
    M Tools/MiniBrowser/mac/MainMenu.xib
    M Tools/MiniBrowser/mac/WK2BrowserWindowController.m

  Log Message:
  -----------
  Add Cmd-T tab support to MiniBrowser with native macOS tabbing
https://bugs.webkit.org/show_bug.cgi?id=304998
rdar://167638810

Reviewed by Simon Fraser.

Currently, to enter into the multi-tab view creating a new window from
the menu bar, then "merging" windows.

Since the functionality is already there, wire up Cmd-T support, and use
the native macOS application tabbing behavior to make it less "awkward"
to add new tabs.

By using the native macOS tabbing behavior, we get a lot of functionality
"for free", such as:
- Cmd-T to create new tabs
- Window > Merge All Windows
- Window > Move Tab to New Window
- Dragging tabs between windows

In this patch,
- Added tabbingMode="preferred" to BrowserWindow.xib to enable native tab bar
- Added "New Tab" menu item (Cmd-T) to File menu
- Implement newTab: action that creates tabs inheriting the current
window's type (WK1/WK2) and configuration (private browsing, site isolation)
- Added tabbingIdentifier to group windows properly
- Use separate tabbingIdentifier for private windows to prevent merging
 with regular windows
- Implemented newWindowForTab: delegate for the tab bar "+" button

* Tools/MiniBrowser/mac/AppDelegate.h:
* Tools/MiniBrowser/mac/AppDelegate.m:
(-[BrowserAppDelegate newTab:]):
* Tools/MiniBrowser/mac/BrowserWindow.xib:
* Tools/MiniBrowser/mac/BrowserWindowController.m:
(-[BrowserWindowController windowDidLoad]):
(-[BrowserWindowController newWindowForTab:]):
* Tools/MiniBrowser/mac/MainMenu.xib:
* Tools/MiniBrowser/mac/WK2BrowserWindowController.m:
(-[WK2BrowserWindowController dealloc]):
(-[WK2BrowserWindowController windowDidLoad]):

Canonical link: https://commits.webkit.org/305262@main



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