Issue 964437 Make IDLE help window non-modal.

Patch by Guilherme Polo and Roger Serwy.

1 files changed, 15 insertions, 9 deletions

diff --git a/Lib/idlelib/textView.py b/Lib/idlelib/textView.py
index e0f49d4..1eaa464 100644
--- a/Lib/idlelib/textView.py
+++ b/Lib/idlelib/textView.py
@@ -9,7 +9,7 @@ class TextViewer(Toplevel):
     """A simple text viewer dialog for IDLE
 
     """
-    def __init__(self, parent, title, text):
+    def __init__(self, parent, title, text, modal=True):
         """Show the given text in a scrollable window with a 'close' button
 
         """
@@ -24,8 +24,6 @@ class TextViewer(Toplevel):
 
         self.CreateWidgets()
         self.title(title)
-        self.transient(parent)
-        self.grab_set()
         self.protocol("WM_DELETE_WINDOW", self.Ok)
         self.parent = parent
         self.textView.focus_set()
@@ -34,7 +32,11 @@ class TextViewer(Toplevel):
         self.bind('<Escape>',self.Ok) #dismiss dialog
         self.textView.insert(0.0, text)
         self.textView.config(state=DISABLED)
-        self.wait_window()
+
+        if modal:
+            self.transient(parent)
+            self.grab_set()
+            self.wait_window()
 
     def CreateWidgets(self):
         frameText = Frame(self, relief=SUNKEN, height=700)
@@ -57,10 +59,10 @@ class TextViewer(Toplevel):
         self.destroy()
 
 
-def view_text(parent, title, text):
-    TextViewer(parent, title, text)
+def view_text(parent, title, text, modal=True):
+    return TextViewer(parent, title, text, modal)
 
-def view_file(parent, title, filename, encoding=None):
+def view_file(parent, title, filename, encoding=None, modal=True):
     try:
         with open(filename, 'r', encoding=encoding) as file:
             contents = file.read()
@@ -70,7 +72,7 @@ def view_file(parent, title, filename, encoding=None):
                                message='Unable to load file %r .' % filename,
                                parent=parent)
     else:
-        return view_text(parent, title, contents)
+        return view_text(parent, title, contents, modal)
 
 
 if __name__ == '__main__':
@@ -80,11 +82,15 @@ if __name__ == '__main__':
     filename = './textView.py'
     text = file(filename, 'r').read()
     btn1 = Button(root, text='view_text',
-                 command=lambda:view_text(root, 'view_text', text))
+                  command=lambda:view_text(root, 'view_text', text))
     btn1.pack(side=LEFT)
     btn2 = Button(root, text='view_file',
                   command=lambda:view_file(root, 'view_file', filename))
     btn2.pack(side=LEFT)
+    btn3 = Button(root, text='nonmodal view_text',
+                  command=lambda:view_text(root, 'nonmodal view_text', text,
+                                           modal=False))
+    btn3.pack(side=LEFT)
     close = Button(root, text='Close', command=root.destroy)
     close.pack(side=RIGHT)
     root.mainloop()