Added 2 plugins for drag and drop support (#352)

* Added 2 plugins for drag and drop support

These scripts uses https://github.com/mwh/dragon
and curl.

It allows nnn to drag and drop files either to other programs, or to
itself.

* added link to dependency and spelling

* added drag/drop-file scripts to readme table

1 files changed, 50 insertions, 0 deletions

diff --git a/plugins/drag-file b/plugins/drag-file
new file mode 100755
index 0000000..c44acf9
--- /dev/null
+++ b/plugins/drag-file
@@ -0,0 +1,50 @@
+#!/usr/bin/env sh
+
+# Description: Open a Drag and drop window, to drop files onto other programs
+#
+# Dependency: https://github.com/mwh/dragon
+# Shell: POSIX compliant
+# Author: 0xACE
+
+selection=${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection
+resp=f
+all=
+
+dnd()
+{
+    dragon "$@"
+}
+
+function use_all()
+{
+    echo -n "mark --all (a) [default=none]: "
+    read resp
+    if [ "$resp" = "a" ]; then
+        all="--all"
+    else
+        all=""
+    fi
+}
+
+if [ -s "$selection" ]; then
+    echo -n "work with selection (s), current working directory (d) or current file (f) [default=f]: "
+    read resp
+else
+    echo -n "work with current working directory (d) or current file (f) [default=f]: "
+    read resp
+    if [ "$resp" = "s" ]; then
+        resp=f
+    fi
+fi
+
+if [ "$resp" = "s" ]; then
+    use_all
+    sed -z 's|'"$PWD/"'||g' < "$selection" | xargs -0 dnd "$all" &
+elif [ "$resp" = "d" ]; then
+    use_all
+    dnd "$all" "$PWD/"* &
+else
+    if [ -n "$1" ] && [ -e "$1" ]; then
+        dnd "$1" &
+    fi
+fi