patch 7.4.2075

Problem:    No autocommand event to initialize a window or tab page.
Solution:   Add WinNew and TabNew events. (partly by Felipe Morales)

runtime/doc/autocmd.txt

@@ -293,6 +293,8 @@ Name			triggered by ~
 |CursorMoved|		the cursor was moved in Normal mode
 |CursorMovedI|		the cursor was moved in Insert mode
 
+|WinNew|		after creating a new window
+|TabNew|		after creating a new window
 |WinEnter|		after entering another window
 |WinLeave|		before leaving a window
 |TabEnter|		after entering another tab page
@@ -309,6 +311,9 @@ Name			triggered by ~
 |TextChanged|		after a change was made to the text in Normal mode
 |TextChangedI|		after a change was made to the text in Insert mode
 
+|TextChanged|		after a change was made to the text in Normal mode
+|TextChangedI|		after a change was made to the text in Insert mode
+
 |ColorScheme|		after loading a color scheme
 
 |RemoteReply|		a reply from a server Vim was received
@@ -882,6 +887,10 @@ TabEnter			Just after entering a tab page. |tab-page|
 TabLeave			Just before leaving a tab page. |tab-page|
 				A WinLeave event will have been triggered
 				first.
+							*TabNew*
+TabNew				When a tab page was created. |tab-page|
+				A WinEnter event will have been triggered
+				first, TabEnter follows.
 							*TermChanged*
 TermChanged			After the value of 'term' has changed.  Useful
 				for re-loading the syntax file to update the

src/fileio.c

@@ -7706,6 +7706,7 @@ static struct event_name
     {"StdinReadPre",	EVENT_STDINREADPRE},
     {"SwapExists",	EVENT_SWAPEXISTS},
     {"Syntax",		EVENT_SYNTAX},
+    {"TabNew",		EVENT_TABNEW},
     {"TabEnter",	EVENT_TABENTER},
     {"TabLeave",	EVENT_TABLEAVE},
     {"TermChanged",	EVENT_TERMCHANGED},
@@ -7716,6 +7717,7 @@ static struct event_name
     {"VimEnter",	EVENT_VIMENTER},
     {"VimLeave",	EVENT_VIMLEAVE},
     {"VimLeavePre",	EVENT_VIMLEAVEPRE},
+    {"WinNew",		EVENT_WINNEW},
     {"WinEnter",	EVENT_WINENTER},
     {"WinLeave",	EVENT_WINLEAVE},
     {"VimResized",	EVENT_VIMRESIZED},

src/testdir/test_autocmd.vim

@@ -78,3 +78,33 @@ function Test_autocmd_bufunload_with_tabnext()
   tablast
   quit
 endfunc
+
+func Test_win_tab_autocmd()
+  let g:record = []
+
+  augroup testing
+    au WinNew * call add(g:record, 'WinNew')
+    au WinEnter * call add(g:record, 'WinEnter') 
+    au WinLeave * call add(g:record, 'WinLeave') 
+    au TabNew * call add(g:record, 'TabNew')
+    au TabEnter * call add(g:record, 'TabEnter')
+    au TabLeave * call add(g:record, 'TabLeave')
+  augroup END
+
+  split
+  tabnew
+  close
+  close
+
+  call assert_equal([
+	\ 'WinLeave', 'WinNew', 'WinEnter',
+	\ 'WinLeave', 'TabLeave', 'WinNew', 'WinEnter', 'TabNew', 'TabEnter',
+	\ 'WinLeave', 'TabLeave', 'WinEnter', 'TabEnter',
+	\ 'WinLeave', 'WinEnter'
+	\ ], g:record)
+
+  augroup testing
+    au!
+  augroup END
+  unlet g:record
+endfunc

src/version.c

@@ -758,6 +758,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2075,
 /**/
     2074,
 /**/

src/vim.h

@@ -1315,6 +1315,7 @@ enum auto_event
     EVENT_VIMRESIZED,		/* after Vim window was resized */
     EVENT_WINENTER,		/* after entering a window */
     EVENT_WINLEAVE,		/* before leaving a window */
+    EVENT_WINNEW,		/* when entering a new window */
     EVENT_ENCODINGCHANGED,	/* after changing the 'encoding' option */
     EVENT_INSERTCHARPRE,	/* before inserting a char */
     EVENT_CURSORHOLD,		/* cursor in same position for a while */
@@ -1327,8 +1328,9 @@ enum auto_event
     EVENT_SPELLFILEMISSING,	/* spell file missing */
     EVENT_CURSORMOVED,		/* cursor was moved */
     EVENT_CURSORMOVEDI,		/* cursor was moved in Insert mode */
-    EVENT_TABLEAVE,		/* before leaving a tab page */
     EVENT_TABENTER,		/* after entering a tab page */
+    EVENT_TABLEAVE,		/* before leaving a tab page */
+    EVENT_TABNEW,		/* when entering a new tab page */
     EVENT_SHELLCMDPOST,		/* after ":!cmd" */
     EVENT_SHELLFILTERPOST,	/* after ":1,2!cmd", ":w !cmd", ":r !cmd". */
     EVENT_TEXTCHANGED,		/* text was modified */

src/window.c

@@ -45,7 +45,7 @@ static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds);
 static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds);
 static void frame_fix_height(win_T *wp);
 static int frame_minheight(frame_T *topfrp, win_T *next_curwin);
-static void win_enter_ext(win_T *wp, int undo_sync, int no_curwin, int trigger_enter_autocmds, int trigger_leave_autocmds);
+static void win_enter_ext(win_T *wp, int undo_sync, int no_curwin, int trigger_new_autocmds, int trigger_enter_autocmds, int trigger_leave_autocmds);
 static void win_free(win_T *wp, tabpage_T *tp);
 static void frame_append(frame_T *after, frame_T *frp);
 static void frame_insert(frame_T *before, frame_T *frp);
@@ -1259,7 +1259,7 @@ win_split_ins(
     /*
      * make the new window the current window
      */
-    win_enter(wp, FALSE);
+    win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE);
     if (flags & WSP_VERT)
 	p_wiw = i;
     else
@@ -2416,7 +2416,7 @@ win_close(win_T *win, int free_buf)
 	win_comp_pos();
     if (close_curwin)
     {
-	win_enter_ext(wp, FALSE, TRUE, TRUE, TRUE);
+	win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE);
 #ifdef FEAT_AUTOCMD
 	if (other_buffer)
 	    /* careful: after this wp and win may be invalid! */
@@ -3629,7 +3629,9 @@ win_new_tabpage(int after)
 
 	redraw_all_later(CLEAR);
 #ifdef FEAT_AUTOCMD
+	apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf);
 	apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf);
+	apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf);
 	apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf);
 #endif
 	return OK;
@@ -3808,7 +3810,7 @@ enter_tabpage(
     /* We would like doing the TabEnter event first, but we don't have a
      * valid current window yet, which may break some commands.
      * This triggers autocommands, thus may make "tp" invalid. */
-    win_enter_ext(tp->tp_curwin, FALSE, TRUE,
+    win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE,
 			      trigger_enter_autocmds, trigger_leave_autocmds);
     prevwin = next_prevwin;
 
@@ -4242,7 +4244,7 @@ end:
     void
 win_enter(win_T *wp, int undo_sync)
 {
-    win_enter_ext(wp, undo_sync, FALSE, TRUE, TRUE);
+    win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE);
 }
 
 /*
@@ -4255,6 +4257,7 @@ win_enter_ext(
     win_T	*wp,
     int		undo_sync,
     int		curwin_invalid,
+    int		trigger_new_autocmds UNUSED,
     int		trigger_enter_autocmds UNUSED,
     int		trigger_leave_autocmds UNUSED)
 {
@@ -4340,6 +4343,8 @@ win_enter_ext(
     }
 
 #ifdef FEAT_AUTOCMD
+    if (trigger_new_autocmds)
+	apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf);
     if (trigger_enter_autocmds)
     {
 	apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf);