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patch 8.1.1597: cannot scroll a popup window with the mouse

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Problem:    Cannot scroll a popup window with the mouse.
Solution:   If the popup window has a scrollbar let the mouse scroll wheel
            scroll the window.
This commit is contained in:
Bram Moolenaar
2019-06-26 03:40:36 +02:00
parent c2a4316500
commit 68acb41f99
12 changed files with 86 additions and 18 deletions
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35
src/normal.c
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@@ -4521,9 +4521,13 @@ nv_mousescroll(cmdarg_T *cap)
col = mouse_col;
/* find the window at the pointer coordinates */
wp = mouse_find_win(&row, &col, FAIL_POPUP);
wp = mouse_find_win(&row, &col, FIND_POPUP);
if (wp == NULL)
return;
#ifdef FEAT_TEXT_PROP
if (bt_popup(wp->w_buffer) && !wp->w_has_scrollbar)
return;
#endif
curwin = wp;
curbuf = curwin->w_buffer;
}
@@ -4543,10 +4547,35 @@ nv_mousescroll(cmdarg_T *cap)
}
else
{
cap->count1 = 3;
cap->count0 = 3;
// Don't scroll more than half the window height.
if (curwin->w_height < 6)
{
cap->count1 = curwin->w_height / 2;
if (cap->count1 == 0)
cap->count1 = 1;
}
else
cap->count1 = 3;
cap->count0 = cap->count1;
nv_scroll_line(cap);
}
#ifdef FEAT_TEXT_PROP
if (bt_popup(wp->w_buffer))
{
int height = wp->w_height;
curwin->w_firstline = curwin->w_topline;
popup_adjust_position(curwin);
// we don't want the popup to get smaller, decrement the first line
// until it doesn't
while (curwin->w_firstline > 1 && curwin->w_height < height)
{
--curwin->w_firstline;
popup_adjust_position(curwin);
}
}
#endif
}
# ifdef FEAT_GUI
else