Decouple context menu from debug flag on all backends

Every backend (GTK, EdgeChromium, Cocoa) tied the entire native
right-click context menu to webview.start()'s debug flag, not just the
devtools "Inspect Element" entry. Apps running with debug=False (the
normal production case) lost basic copy/paste and Back/Forward/Reload
along with it -- found live driving a real WebKitGTK window under Xvfb:
right-clicking a loaded page produced nothing with debug=False, no
matter what.

Adds settings['ENABLE_CONTEXT_MENU'] (default None, preserving the old
debug-tied behavior) so an app can force the context menu on/off
independently of debug. Devtools exposure itself
(enable_developer_extras / AreDevToolsEnabled / developerExtrasEnabled)
stays tied to debug on all three backends, unchanged -- this only
separates "show a normal context menu" from "expose devtools", which
were never actually the same decision for an end user.

Verified live: with ENABLE_CONTEXT_MENU=True and debug=False, right-
click on GTK now shows the normal Back/Forward/Stop/Reload menu with no
Inspect Element entry; the same window with the setting left at its
default shows no menu at all, reproducing the original bug.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: lostcause

webview/__init__.py

@@ -139,6 +139,15 @@ class FileDialog(enum.IntEnum):
         'IGNORE_SSL_ERRORS': False,
         'SHOW_DEFAULT_MENUS': True,
         'WEBVIEW2_RUNTIME_PATH': None,
+        # Every backend used to tie the native right-click context menu
+        # (copy/paste, etc.) to the `debug` flag on webview.start(), so
+        # production apps running with debug=False lost basic copy/paste
+        # entirely, not just the "Inspect Element" devtools entry -- the
+        # two are unrelated to an end user. None preserves that original
+        # behavior (follow `debug`) for backward compat; True/False force
+        # the context menu on/off regardless of `debug`, letting an app
+        # ship a normal right-click menu without exposing devtools.
+        'ENABLE_CONTEXT_MENU': None,
     }
 )
 

webview/platforms/cocoa.py

@@ -506,7 +506,10 @@ def mouseDragged_(self, event):
             super(BrowserView.WebKitHost, self).mouseDragged_(event)
 
         def willOpenMenu_withEvent_(self, menu, event):
-            if not _state['debug']:
+            enable_context_menu = webview_settings['ENABLE_CONTEXT_MENU']
+            if enable_context_menu is None:
+                enable_context_menu = _state['debug']
+            if not enable_context_menu:
                 menu.removeAllItems()
 
         def keyDown_(self, event):

webview/platforms/edgechromium.py

@@ -285,7 +285,10 @@ def on_webview_ready(self, sender, args):
 
         settings = sender.CoreWebView2.Settings
         settings.AreBrowserAcceleratorKeysEnabled = _state['debug']
-        settings.AreDefaultContextMenusEnabled = _state['debug']
+        enable_context_menu = webview_settings['ENABLE_CONTEXT_MENU']
+        if enable_context_menu is None:
+            enable_context_menu = _state['debug']
+        settings.AreDefaultContextMenusEnabled = enable_context_menu
         settings.AreDefaultScriptDialogsEnabled = True
         settings.AreDevToolsEnabled = _state['debug']
         settings.IsBuiltInErrorPageEnabled = True

webview/platforms/gtk.py

@@ -254,7 +254,11 @@ def __init__(self, window: Window) -> None:
 
             if settings['OPEN_DEVTOOLS_IN_DEBUG']:
                 self.webview.get_inspector().show()
-        else:
+
+        enable_context_menu = settings['ENABLE_CONTEXT_MENU']
+        if enable_context_menu is None:
+            enable_context_menu = _state['debug']
+        if not enable_context_menu:
             self.webview.connect('context-menu', lambda a, b, c, d: True)  # Disable context menu
 
         if _state['private_mode']: