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bug#30955: 27.0.50; Mouse clicks on header-line in Info are broken


From: Colin Baxter
Subject: bug#30955: 27.0.50; Mouse clicks on header-line in Info are broken
Date: Wed, 28 Mar 2018 07:07:47 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)

>>>>> Stefan Monnier <address@hidden> writes:

    >> Stefan "not looking forward to debug sessions in
    >> read_key_sequence"
    > Ha, I found the sucker!  Installed,


    >         Stefan


    > --- a/src/keyboard.c +++ b/src/keyboard.c @@ -8701,10 +8701,19 @@
    > follow_key (Lisp_Object keymap, Lisp_Object key) }
 
    >  static Lisp_Object -active_maps (Lisp_Object first_event)
    > +active_maps (Lisp_Object first_event, Lisp_Object second_event) {
    > Lisp_Object position - = CONSP (first_event) ? CAR_SAFE (XCDR
    > (first_event)) : Qnil; + = EVENT_HAS_PARAMETERS (first_event) ?
    > EVENT_START (first_event) : Qnil; + /* The position of a click can
    > be in the second event if the first event + is a pseudo-event like
    > `header-line` or `mode-line`.  */ + if (SYMBOLP (first_event) + &&
    > EVENT_HAS_PARAMETERS (second_event) + && EQ (first_event,
    > POSN_POSN (EVENT_START (second_event)))) + { + eassert (NILP
    > (position)); + position = EVENT_START (second_event); + } return
    > Fcons (Qkeymap, Fcurrent_active_maps (Qt, position)); }
 
    > @@ -9016,13 +9025,14 @@ read_key_sequence (Lisp_Object *keybuf,
    > int bufsize, Lisp_Object prompt, starting_buffer = current_buffer;
    > first_unbound = bufsize + 1; Lisp_Object first_event = mock_input
    > > 0 ? keybuf[0] : Qnil; + Lisp_Object second_event = mock_input >
    > 1 ? keybuf[1] : Qnil;
 
    >    /* Build our list of keymaps.  If we recognize a function key
    > and replace its escape sequence in keybuf with its symbol, or if
    > the sequence starts with a mouse click and we need to switch
    > buffers, we jump back here to rebuild the initial keymaps from the
    > current buffer.  */ - current_binding = active_maps (first_event);
    > + current_binding = active_maps (first_event, second_event);
 
    >    /* Start from the beginning in keybuf.  */ t = 0; @@ -9282,7
    > +9292,7 @@ read_key_sequence (Lisp_Object *keybuf, int bufsize,
    > Lisp_Object prompt, && (XBUFFER (XWINDOW
    > (selected_window)->contents) != current_buffer)) Fset_buffer
    > (XWINDOW (selected_window)->contents); - current_binding =
    > active_maps (first_event); + current_binding = active_maps
    > (first_event, Qnil); }
 
    >     GROW_RAW_KEYBUF;


Yes, that's fixed the issue for me - mouse now works normally. Thank
you.

Best wishes,

Colin.





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