Add "eof" action which closes the finder only when input is empty

Close #289

CHANGELOG.md

@@ -9,6 +9,8 @@ CHANGELOG
 - Added options for sticky header
     - `--header-file`
     - `--header-lines`
+- Added `eof` action which closes the finder only when the input is empty
+    - e.g. `export FZF_DEFAULT_OPTS="--bind esc:eof"`
 
 ### Minor improvements/fixes
 

man/man1/fzf.1

@@ -193,6 +193,7 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fBdeselect-all\fR
     \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
     \fBend-of-line\fR           \fIctrl-e  end\fR
+    \fBeof\fR
     \fBexecute(...)\fR          (see below for the details)
     \fBforward-char\fR          \fIctrl-f  right\fR
     \fBforward-word\fR          \fIalt-f   shift-right\fR

src/options.go

@@ -499,6 +499,8 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			keymap[key] = actDeleteChar
 		case "end-of-line":
 			keymap[key] = actEndOfLine
+		case "eof":
+			keymap[key] = actEof
 		case "forward-char":
 			keymap[key] = actForwardChar
 		case "forward-word":

src/terminal.go

@@ -103,6 +103,7 @@ const (
 	actClearScreen
 	actDeleteChar
 	actEndOfLine
+	actEof
 	actForwardChar
 	actForwardWord
 	actKillLine
@@ -813,6 +814,10 @@ func (t *Terminal) Loop() {
 			}
 		case actEndOfLine:
 			t.cx = len(t.input)
+		case actEof:
+			if len(t.input) == 0 {
+				req(reqQuit)
+			}
 		case actForwardChar:
 			if t.cx < len(t.input) {
 				t.cx++

test/test_go.rb

@@ -718,6 +718,19 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_eof
+    tmux.send_keys "seq 100 | #{fzf "--bind 2:eof"}", :Enter
+    tmux.until { |lines| lines[-2].include?('100/100') }
+    tmux.send_keys '123'
+    tmux.until do |lines|
+      lines[-1] == '> 13' && lines[-2].include?('1/100')
+    end
+    tmux.send_keys :BSpace, :BSpace
+    tmux.until { |lines| lines[-1] == '>' }
+    tmux.send_keys 2
+    tmux.prepare
+  end
+
 private
   def writelines path, lines
     File.unlink path while File.exists? path