Make S-SPC scroll in the opposite direction to SPC

* lisp/calc/calc-graph.el (calc-graph-show-dumb):
* lisp/calendar/calendar.el (calendar-mode-map):
* lisp/cus-edit.el (custom-mode-map):
* lisp/ehelp.el (electric-help-map):
* lisp/emulation/vip.el (vip-mode-map):
* lisp/epa.el (epa-key-list-mode-map):
* lisp/info.el (Info-mode-map):
* lisp/mail/rmail.el (rmail-mode-map):
* lisp/mail/rmailsum.el (rmail-summary-mode-map):
* lisp/man.el (Man-mode-map):
* lisp/net/newst-plainview.el (newsticker-mode-map):
* lisp/progmodes/cpp.el (cpp-edit-mode-map):
* lisp/progmodes/grep.el (grep-mode-map):
* lisp/progmodes/idlw-help.el (idlwave-help-mode-map):
* lisp/simple.el (special-mode-map):
* lisp/startup.el (splash-screen-keymap):
* lisp/view.el (view-mode-map):
Make S-SPC scroll in the opposite sense to SPC.

Fixes: debbugs:2145

19 files changed, 45 insertions, 4 deletions

diff --git a/etc/NEWS b/etc/NEWS
index a29c8eb054e..bbee14d2ac9 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -76,6 +76,9 @@ of the buffer is visible).
 ** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
 bound to <f11> and M-<f10>, respectively.
 
+** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction.
+Eg View mode, etc.
+
 
 * Changes in Specialized Modes and Packages in Emacs 24.4
 
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index fd2186fcfb2..924f8cbaf38 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,24 @@
+2013-02-12  Glenn Morris  <rgm@gnu.org>
+
+	* calc/calc-graph.el (calc-graph-show-dumb):
+	* calendar/calendar.el (calendar-mode-map):
+	* cus-edit.el (custom-mode-map):
+	* ehelp.el (electric-help-map):
+	* emulation/vip.el (vip-mode-map):
+	* epa.el (epa-key-list-mode-map):
+	* info.el (Info-mode-map):
+	* mail/rmail.el (rmail-mode-map):
+	* mail/rmailsum.el (rmail-summary-mode-map):
+	* man.el (Man-mode-map):
+	* net/newst-plainview.el (newsticker-mode-map):
+	* progmodes/cpp.el (cpp-edit-mode-map):
+	* progmodes/grep.el (grep-mode-map):
+	* progmodes/idlw-help.el (idlwave-help-mode-map):
+	* simple.el (special-mode-map):
+	* startup.el (splash-screen-keymap):
+	* view.el (view-mode-map):
+	Make S-SPC scroll in the opposite sense to SPC.  (Bug#2145)
+
 2013-02-11  Elias Pipping  <pipping@lavabit.com>
 
 	* doc-view.el (doc-view-current-cache-dir): Beware % escapes
diff --git a/lisp/calc/calc-graph.el b/lisp/calc/calc-graph.el
index 4376e21b4ca..c84c7fdf949 100644
--- a/lisp/calc/calc-graph.el
+++ b/lisp/calc/calc-graph.el
@@ -948,6 +948,7 @@ This \"dumb\" driver will be present in Gnuplot 3.0."
 	  (setq calc-dumb-map (make-sparse-keymap))
 	  (define-key calc-dumb-map "\n" 'scroll-up-command)
 	  (define-key calc-dumb-map " " 'scroll-up-command)
+	  (define-key calc-dump-map [?\S-\ ] 'scroll-down-command)
 	  (define-key calc-dumb-map "\177" 'scroll-down-command)
 	  (define-key calc-dumb-map "<" 'scroll-left)
 	  (define-key calc-dumb-map ">" 'scroll-right)
diff --git a/lisp/calendar/calendar.el b/lisp/calendar/calendar.el
index 74d3ce80338..20a8684e387 100644
--- a/lisp/calendar/calendar.el
+++ b/lisp/calendar/calendar.el
@@ -1635,6 +1635,7 @@ line."
     (define-key map "S"   'calendar-sunrise-sunset)
     (define-key map "M"   'calendar-lunar-phases)
     (define-key map " "   'scroll-other-window)
+    (define-key map [?\S-\ ] 'scroll-other-window-down)
     (define-key map "\d"  'scroll-other-window-down)
     (define-key map "\C-c\C-l" 'calendar-redraw)
     (define-key map "."   'calendar-goto-today)
diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index 6d1ebe5a962..d19e2ded00c 100644
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -443,6 +443,7 @@
     (define-key map [remap self-insert-command] 'Custom-no-edit)
     (define-key map "\^m" 'Custom-newline)
     (define-key map " " 'scroll-up-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map "\177" 'scroll-down-command)
     (define-key map "\C-c\C-c" 'Custom-set)
     (define-key map "\C-x\C-s" 'Custom-save)
diff --git a/lisp/ehelp.el b/lisp/ehelp.el
index 416666f918c..88fc87b5b7a 100644
--- a/lisp/ehelp.el
+++ b/lisp/ehelp.el
@@ -80,6 +80,7 @@
     (define-key map (char-to-string help-char) 'electric-help-help)
     (define-key map "?" 'electric-help-help)
     (define-key map " " 'scroll-up)
+    (define-key map [?\S-\ ] 'scroll-down)
     (define-key map "\^?" 'scroll-down)
     (define-key map "." 'beginning-of-buffer)
     (define-key map "<" 'beginning-of-buffer)
diff --git a/lisp/emulation/vip.el b/lisp/emulation/vip.el
index 4e6749d9cfb..e086f26e8ab 100644
--- a/lisp/emulation/vip.el
+++ b/lisp/emulation/vip.el
@@ -183,6 +183,7 @@ If nil then it is bound to `delete-backward-char'."
     (define-key map "\C-z" 'vip-change-mode-to-emacs)
     (define-key map "\e" 'vip-ESC)
 
+    (define-key map [?\S-\ ] 'vip-scroll-back)
     (define-key map " " 'vip-scroll)
     (define-key map "!" 'vip-command-argument)
     (define-key map "\"" 'vip-command-argument)
diff --git a/lisp/epa.el b/lisp/epa.el
index 61a1378aa22..852d10b1cf7 100644
--- a/lisp/epa.el
+++ b/lisp/epa.el
@@ -169,6 +169,7 @@ You should bind this variable with `let', but do not set it globally.")
     (define-key keymap "n" 'next-line)
     (define-key keymap "p" 'previous-line)
     (define-key keymap " " 'scroll-up-command)
+    (define-key keymap [?\S-\ ] 'scroll-down-command)
     (define-key keymap [delete] 'scroll-down-command)
     (define-key keymap "q" 'epa-exit-buffer)
     (define-key keymap [menu-bar epa-key-list-mode] (cons "Keys" menu-map))
diff --git a/lisp/info.el b/lisp/info.el
index c276420fb7d..a6db9f3f4dc 100644
--- a/lisp/info.el
+++ b/lisp/info.el
@@ -3874,6 +3874,7 @@ If FORK is non-nil, it is passed to `Info-goto-node'."
     (suppress-keymap map)
     (define-key map "." 'beginning-of-buffer)
     (define-key map " " 'Info-scroll-up)
+    (define-key map [?\S-\ ] 'Info-scroll-down)
     (define-key map "\C-m" 'Info-follow-nearest-node)
     (define-key map "\t" 'Info-next-reference)
     (define-key map "\e\t" 'Info-prev-reference)
diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 96d341c30d2..02703026e84 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -1085,6 +1085,7 @@ The buffer is expected to be narrowed to just the header of the message."
     (define-key map "<"      'rmail-first-message)
     (define-key map ">"      'rmail-last-message)
     (define-key map " "      'scroll-up-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map "\177"   'scroll-down-command)
     (define-key map "?"      'describe-mode)
     (define-key map "\C-c\C-s\C-d" 'rmail-sort-by-date)
@@ -4751,7 +4752,7 @@ If prefix argument REVERSE is non-nil, sorts in reverse order.
 
 ;;;### (autoloads (rmail-summary-by-senders rmail-summary-by-topic
 ;;;;;;  rmail-summary-by-regexp rmail-summary-by-recipients rmail-summary-by-labels
-;;;;;;  rmail-summary) "rmailsum" "rmailsum.el" "341825201e892b8fc875c1ae49ffd560")
+;;;;;;  rmail-summary) "rmailsum" "rmailsum.el" "119ce8b431f01e7f54bb6fa99603b3d9")
 ;;; Generated autoloads from rmailsum.el
 
 (autoload 'rmail-summary "rmailsum" "\
diff --git a/lisp/mail/rmailsum.el b/lisp/mail/rmailsum.el
index 5b906719c39..13cd7c3f05e 100644
--- a/lisp/mail/rmailsum.el
+++ b/lisp/mail/rmailsum.el
@@ -118,6 +118,7 @@ Setting this option to nil might speed up the generation of summaries."
     (define-key map "<"      'rmail-summary-first-message)
     (define-key map ">"      'rmail-summary-last-message)
     (define-key map " "      'rmail-summary-scroll-msg-up)
+    (define-key map [?\S-\ ] 'rmail-summary-scroll-msg-down)
     (define-key map "\177"   'rmail-summary-scroll-msg-down)
     (define-key map "?"      'describe-mode)
     (define-key map "\C-c\C-n" 'rmail-summary-next-same-subject)
diff --git a/lisp/man.el b/lisp/man.el
index 93a67128de4..04abc3d4d88 100644
--- a/lisp/man.el
+++ b/lisp/man.el
@@ -426,6 +426,7 @@ Otherwise, the value is whatever the function
     (suppress-keymap map)
     (set-keymap-parent map button-buffer-map)
 
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map " "    'scroll-up-command)
     (define-key map "\177" 'scroll-down-command)
     (define-key map "n"    'Man-next-section)
diff --git a/lisp/net/newst-plainview.el b/lisp/net/newst-plainview.el
index 2eb04787bea..c7a3a107078 100644
--- a/lisp/net/newst-plainview.el
+++ b/lisp/net/newst-plainview.el
@@ -5,7 +5,7 @@
 ;; Author:      Ulf Jasper <ulf.jasper@web.de>
 ;; Filename:    newst-plainview.el
 ;; URL:         http://www.nongnu.org/newsticker
-;; Time-stamp:  "13. Mai 2011, 19:28:34 (ulf)"
+;; Time-stamp:  "Mon 11-Feb-2013 20:27:11 gm on skiddaw"
 ;; Package:     newsticker
 
 ;; ======================================================================
@@ -405,6 +405,7 @@ images."
     (define-key map "sx" 'newsticker-show-extra)
     (define-key map "hx" 'newsticker-hide-extra)
 
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map " "  'scroll-up-command)
     (define-key map "q"  'newsticker-close-buffer)
     (define-key map "p"  'newsticker-previous-item)
diff --git a/lisp/progmodes/cpp.el b/lisp/progmodes/cpp.el
index 340b97e80bd..674d98b8dc3 100644
--- a/lisp/progmodes/cpp.el
+++ b/lisp/progmodes/cpp.el
@@ -420,6 +420,7 @@ A prefix arg suppresses display of that buffer."
     (define-key map [ down-mouse-2 ] 'cpp-push-button)
     (define-key map [ mouse-2 ] 'ignore)
     (define-key map " " 'scroll-up-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map "\C-?" 'scroll-down-command)
     (define-key map [ delete ] 'scroll-down)
     (define-key map "\C-c\C-c" 'cpp-edit-apply)
diff --git a/lisp/progmodes/grep.el b/lisp/progmodes/grep.el
index d8c39f2ddef..1e152c6d751 100644
--- a/lisp/progmodes/grep.el
+++ b/lisp/progmodes/grep.el
@@ -246,6 +246,7 @@ See `compilation-error-screen-columns'"
   (let ((map (make-sparse-keymap)))
     (set-keymap-parent map compilation-minor-mode-map)
     (define-key map " " 'scroll-up-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map "\^?" 'scroll-down-command)
     (define-key map "\C-c\C-f" 'next-error-follow-minor-mode)
 
diff --git a/lisp/progmodes/idlw-help.el b/lisp/progmodes/idlw-help.el
index 0e44e5366ca..749b0b65576 100644
--- a/lisp/progmodes/idlw-help.el
+++ b/lisp/progmodes/idlw-help.el
@@ -227,6 +227,7 @@ support."
                              (interactive "p")
                              (scroll-up arg)))
     (define-key map " " 'scroll-up-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map [delete] 'scroll-down-command)
     (define-key map "h" 'idlwave-help-find-header)
     (define-key map "H" 'idlwave-help-find-first-header)
diff --git a/lisp/simple.el b/lisp/simple.el
index 9587d3c006c..849f7dac55c 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -358,6 +358,7 @@ Other major modes are defined by comparison with this one."
     (suppress-keymap map)
     (define-key map "q" 'quit-window)
     (define-key map " " 'scroll-up-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map "\C-?" 'scroll-down-command)
     (define-key map "?" 'describe-mode)
     (define-key map "h" 'describe-mode)
diff --git a/lisp/startup.el b/lisp/startup.el
index 741c5aa9b46..ad31a7a2a45 100644
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -1466,6 +1466,7 @@ Each element in the list should be a list of strings or pairs
     (suppress-keymap map)
     (set-keymap-parent map button-buffer-map)
     (define-key map "\C-?" 'scroll-down-command)
+    (define-key map [?\S-\ ] 'scroll-down-command)
     (define-key map " " 'scroll-up-command)
     (define-key map "q" 'exit-splash-screen)
     map)
diff --git a/lisp/view.el b/lisp/view.el
index 2717c915c71..f9326399a26 100644
--- a/lisp/view.el
+++ b/lisp/view.el
@@ -199,6 +199,7 @@ This is local in each buffer, once it is used.")
     (define-key map "\C-?" 'View-scroll-page-backward)
     ;; (define-key map "f" 'View-scroll-page-forward)
     (define-key map " " 'View-scroll-page-forward)
+    (define-key map [?\S-\ ]  'View-scroll-page-backward)
     (define-key map "o" 'View-scroll-to-buffer-end)
     (define-key map ">" 'end-of-buffer)
     (define-key map "<" 'beginning-of-buffer)
@@ -407,8 +408,8 @@ Digits	provide prefix arguments.
 \\[View-scroll-to-buffer-end]	scroll so that buffer end is at last line of window.
 SPC	scroll forward \"page size\" lines.
 	  With prefix scroll forward prefix lines.
-DEL	scroll backward \"page size\" lines.
-	  With prefix scroll backward prefix lines.
+DEL, S-SPC  scroll backward \"page size\" lines.
+	      With prefix scroll backward prefix lines.
 \\[View-scroll-page-forward-set-page-size]	like  \\[View-scroll-page-forward]  but with prefix sets \"page size\" to prefix.
 \\[View-scroll-page-backward-set-page-size]	like  \\[View-scroll-page-backward]  but with prefix sets \"page size\" to prefix.
 \\[View-scroll-half-page-forward]	scroll forward \"half page size\" lines.  With prefix, sets