Implement quick and easy disable of xdg-open usage.

MC_XDG_OPEN=/bin/false can be used to disable xdg-open usage in
/usr/libexec/mc/ext.d/*.sh scripts.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

misc/ext.d/archive.sh

@@ -8,6 +8,8 @@ action=$1
 filetype=$2
 pager=$3
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
+
 do_view_action() {
     filetype=$1
 
@@ -141,7 +143,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}" "${pager}"
     ;;
 *)

misc/ext.d/doc.sh.in

@@ -6,6 +6,7 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
 
 STAROFFICE_REGEXP='\.(sxw|sdw|stw|sxc|stc|sxi|sti|sxd|std||sxm||sxg)$'
 
@@ -186,7 +187,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)

misc/ext.d/image.sh

@@ -6,6 +6,8 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
+
 do_view_action() {
     filetype=$1
 
@@ -52,7 +54,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)

misc/ext.d/misc.sh.in

@@ -6,6 +6,8 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
+
 do_view_action() {
     filetype=$1
 
@@ -86,7 +88,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)

misc/ext.d/package.sh

@@ -6,6 +6,7 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
 
 do_view_action() {
     filetype=$1
@@ -50,7 +51,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)

misc/ext.d/sound.sh

@@ -6,6 +6,8 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
+
 do_view_action() {
     filetype=$1
 
@@ -82,7 +84,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)

misc/ext.d/text.sh.in

@@ -8,6 +8,8 @@ action=$1
 filetype=$2
 pager=$3
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
+
 get_unpacker() {
     filetype=$1
     case "${filetype}" in
@@ -131,7 +133,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}" "${pager}"
     ;;
 *)

misc/ext.d/video.sh

@@ -6,6 +6,7 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
 
 do_view_action() {
     filetype=$1
@@ -42,7 +43,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)

misc/ext.d/web.sh.in

@@ -6,6 +6,8 @@
 action=$1
 filetype=$2
 
+[ -n "${MC_XDG_OPEN}" ] || MC_XDG_OPEN="xdg-open"
+
 do_view_action() {
     filetype=$1
 
@@ -44,7 +46,7 @@ view)
     do_view_action "${filetype}"
     ;;
 open)
-    xdg-open "${MC_EXT_FILENAME}" 2>/dev/null || \
+    "${MC_XDG_OPEN}" "${MC_EXT_FILENAME}" 2>/dev/null || \
         do_open_action "${filetype}"
     ;;
 *)