On Thu, Sep 7, 2017 at 3:33 PM Marco Wahl <marcowahlsoft@gmail.com> wrote:

> I think the bindings could coexist peacefully since
>
`org-table-toggle-column-width' makes sense only for the cursor located
> in a table and `outline-show-children' makes most sense (AFAICS) when
> called on a headline.
>
> Does this sound reasonable?
>
> Does anyone see clearly how to implement this?  (I don't.)
>

I  always wondered the same about other org-table-* bindings in org.el.

This works:

diff --git a/lisp/org.el b/lisp/org.el
index a03d8c5a429..cba9b20482f 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -19632,7 +19632,12 @@ COMMANDS is a list of alternating OLDDEF NEWDEF
command names."
 (org-defkey org-mode-map "\C-j"     'org-return-indent)
 (org-defkey org-mode-map "\C-c?"    'org-table-field-info)
 (org-defkey org-mode-map "\C-c "    'org-table-blank-field)
-(org-defkey org-mode-map (kbd "C-c TAB") #'org-table-toggle-column-width)
+(org-defkey org-mode-map (kbd "C-c TAB")
+            '(menu-item "toggle-column-width-when-in-table" nil
+                        :filter (lambda (&optional _)
+                                  (if (org-at-table-p)
+                                      #'org-table-toggle-column-width
+    #'outline-show-children))))
 (org-defkey org-mode-map "\C-c+"    'org-table-sum)
 (org-defkey org-mode-map "\C-c="    'org-table-eval-formula)
 (org-defkey org-mode-map "\C-c'"    'org-edit-special)

I actually do this for org-table-* bindings in my config:

    ;; Bind the "org-table-*" command ONLY when the point is in an Org
table.
    ;; http://emacs.stackexchange.com/a/22457/115
    (bind-keys
     :map org-mode-map
     :filter (org-at-table-p)
     ("C-c ?" . org-table-field-info)
     ("C-c SPC" . org-table-blank-field)
     ("C-c +" . org-table-sum)
     ("C-c =" . org-table-eval-formula)
     ("C-c `" . org-table-edit-field)
     ("C-#" . org-table-rotate-recalc-marks)
     ("C-c }" . org-table-toggle-coordinate-overlays)
     ("C-c {" . org-table-toggle-formula-debugger))

Inspiration:
http://endlessparentheses.com/define-context-aware-keys-in-emacs.html
-- 

Kaushal Modi