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Provide an option to reverse items only (#1267)

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pull/1316/head
Akinori MUSHA 6 years ago committed by Junegunn Choi
parent 2c26f02f5c
commit daa1958f86
5 changed files with 136 additions and 30 deletions
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8
README.md
Unescape Escape View File

@ -223,8 +223,8 @@ cursor with `--height` option.
vim $(fzf --height 40%)
```
Also check out `--reverse` option if you prefer "top-down" layout instead of
the default "bottom-up" layout.
Also check out `--reverse` and `--layout` options if you prefer
"top-down" layout instead of the default "bottom-up" layout.
```sh
vim $(fzf --height 40% --reverse)
@ -234,7 +234,7 @@ You can add these options to `$FZF_DEFAULT_OPTS` so that they're applied by
default. For example,
```sh
export FZF_DEFAULT_OPTS='--height 40% --reverse --border'
export FZF_DEFAULT_OPTS='--height 40% --layout=reverse --border'
```
#### Search syntax
@ -272,7 +272,7 @@ or `py`.
- e.g. `export FZF_DEFAULT_COMMAND='fd --type f'`
- `FZF_DEFAULT_OPTS`
- Default options
- e.g. `export FZF_DEFAULT_OPTS="--reverse --inline-info"`
- e.g. `export FZF_DEFAULT_OPTS="--layout=reverse --inline-info"`
#### Options

21
man/man1/fzf.1
Unescape Escape View File

@ -155,9 +155,22 @@ the full screen.
.BI "--min-height=" "HEIGHT"
Minimum height when \fB--height\fR is given in percent (default: 10).
Ignored when \fB--height\fR is not specified.
.TP
.BI "--layout=" "LAYOUT"
Choose the layout (default: default)
.br
.BR default " Display from the bottom of the screen"
.br
.BR reverse " Display from the top of the screen"
.br
.BR reverse-list " Display from the top of the screen, prompt at the bottom"
.br
.TP
.B "--reverse"
Reverse orientation
A synonym for \fB--layout=reverse\fB
.TP
.B "--border"
Draw border above and below the finder
@ -195,7 +208,7 @@ Input prompt (default: '> ')
.TP
.BI "--header=" "STR"
The given string will be printed as the sticky header. The lines are displayed
in the given order from top to bottom regardless of \fB--reverse\fR option, and
in the given order from top to bottom regardless of \fB--layout\fR option, and
are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
\fB--ansi\fR is not set.
.TP
@ -543,8 +556,8 @@ triggered whenever the query string is changed.
\fBtoggle\fR (\fIright-click\fR)
\fBtoggle-all\fR
\fBtoggle+down\fR \fIctrl-i (tab)\fR
\fBtoggle-in\fR (\fB--reverse\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
\fBtoggle-out\fR (\fB--reverse\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
\fBtoggle-in\fR (\fB--layout=reverse*\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
\fBtoggle-out\fR (\fB--layout=reverse*\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
\fBtoggle-preview\fR
\fBtoggle-preview-wrap\fR
\fBtoggle-sort\fR

40
src/options.go
Unescape Escape View File

@ -53,7 +53,7 @@ const usage = `usage: fzf [options]
height instead of using fullscreen
--min-height=HEIGHT Minimum height when --height is given in percent
(default: 10)
--reverse Reverse orientation
--layout=LAYOUT Choose layout: [default|reverse|reverse-list]
--border Draw border above and below the finder
--margin=MARGIN Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
--inline-info Display finder info inline with the query
@ -90,7 +90,8 @@ const usage = `usage: fzf [options]
Environment variables
FZF_DEFAULT_COMMAND Default command to use when input is tty
FZF_DEFAULT_OPTS Default options (e.g. '--reverse --inline-info')
FZF_DEFAULT_OPTS Default options
(e.g. '--layout=reverse --inline-info')
`
@ -132,6 +133,14 @@ const (
posRight
)
type layoutType int
const (
layoutDefault layoutType = iota
layoutReverse
layoutReverseList
)
type previewOpts struct {
command string
position windowPosition
@ -161,7 +170,7 @@ type Options struct {
Bold bool
Height sizeSpec
MinHeight int
Reverse bool
Layout layoutType
Cycle bool
Hscroll bool
HscrollOff int
@ -211,7 +220,7 @@ func defaultOptions() *Options {
Black: false,
Bold: true,
MinHeight: 10,
Reverse: false,
Layout: layoutDefault,
Cycle: false,
Hscroll: true,
HscrollOff: 10,
@ -857,6 +866,20 @@ func parseHeight(str string) sizeSpec {
return size
}
func parseLayout(str string) layoutType {
switch str {
case "default":
return layoutDefault
case "reverse":
return layoutReverse
case "reverse-list":
return layoutReverseList
default:
errorExit("invalid layout (expected: default / reverse / reverse-list)")
}
return layoutDefault
}
func parsePreviewWindow(opts *previewOpts, input string) {
// Default
opts.position = posRight
@ -1037,10 +1060,13 @@ func parseOptions(opts *Options, allArgs []string) {
opts.Bold = true
case "--no-bold":
opts.Bold = false
case "--layout":
opts.Layout = parseLayout(
nextString(allArgs, &i, "layout required (default / reverse / reverse-list)"))
case "--reverse":
opts.Reverse = true
opts.Layout = layoutReverse
case "--no-reverse":
opts.Reverse = false
opts.Layout = layoutDefault
case "--cycle":
opts.Cycle = true
case "--no-cycle":
@ -1156,6 +1182,8 @@ func parseOptions(opts *Options, allArgs []string) {
opts.Height = parseHeight(value)
} else if match, value := optString(arg, "--min-height="); match {
opts.MinHeight = atoi(value)
} else if match, value := optString(arg, "--layout="); match {
opts.Layout = parseLayout(value)
} else if match, value := optString(arg, "--toggle-sort="); match {
parseToggleSort(opts.Keymap, value)
} else if match, value := optString(arg, "--expect="); match {

50
src/terminal.go
Unescape Escape View File

@ -59,7 +59,7 @@ type Terminal struct {
inlineInfo bool
prompt string
promptLen int
reverse bool
layout layoutType
fullscreen bool
hscroll bool
hscrollOff int
@ -302,10 +302,11 @@ func trimQuery(query string) []rune {
func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
input := trimQuery(opts.Query)
var header []string
if opts.Reverse {
header = opts.Header
} else {
switch opts.Layout {
case layoutDefault, layoutReverseList:
header = reverseStringArray(opts.Header)
default:
header = opts.Header
}
var delay time.Duration
if opts.Tac {
@ -363,7 +364,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
t := Terminal{
initDelay: delay,
inlineInfo: opts.InlineInfo,
reverse: opts.Reverse,
layout: opts.Layout,
fullscreen: fullscreen,
hscroll: opts.Hscroll,
hscrollOff: opts.HscrollOff,
@ -643,8 +644,21 @@ func (t *Terminal) resizeWindows() {
}
func (t *Terminal) move(y int, x int, clear bool) {
if !t.reverse {
y = t.window.Height() - y - 1
h := t.window.Height()
switch t.layout {
case layoutDefault:
y = h - y - 1
case layoutReverseList:
n := 2 + len(t.header)
if t.inlineInfo {
n--
}
if y < n {
y = h - y - 1
} else {
y -= n
}
}
if clear {
@ -748,7 +762,7 @@ func (t *Terminal) printList() {
count := t.merger.Length() - t.offset
for j := 0; j < maxy; j++ {
i := j
if !t.reverse {
if t.layout == layoutDefault {
i = maxy - 1 - j
}
line := i + 2 + len(t.header)
@ -1680,12 +1694,12 @@ func (t *Terminal) Loop() {
req(reqList, reqInfo)
}
case actToggleIn:
if t.reverse {
if t.layout != layoutDefault {
return doAction(action{t: actToggleUp}, mapkey)
}
return doAction(action{t: actToggleDown}, mapkey)
case actToggleOut:
if t.reverse {
if t.layout != layoutDefault {
return doAction(action{t: actToggleDown}, mapkey)
}
return doAction(action{t: actToggleUp}, mapkey)
@ -1813,13 +1827,21 @@ func (t *Terminal) Loop() {
mx -= t.window.Left()
my -= t.window.Top()
mx = util.Constrain(mx-t.promptLen, 0, len(t.input))
if !t.reverse {
my = t.window.Height() - my - 1
}
min := 2 + len(t.header)
if t.inlineInfo {
min--
}
h := t.window.Height()
switch t.layout {
case layoutDefault:
my = h - my - 1
case layoutReverseList:
if my < h-min {
my += min
} else {
my = h - my - 1
}
}
if me.Double {
// Double-click
if my >= min {
@ -1912,7 +1934,7 @@ func (t *Terminal) constrain() {
}
func (t *Terminal) vmove(o int, allowCycle bool) {
if t.reverse {
if t.layout != layoutDefault {
o *= -1
}
dest := t.cy + o

47
test/test_go.rb
Unescape Escape View File

@ -1060,6 +1060,21 @@ class TestGoFZF < TestBase
assert_equal '50', readonce.chomp
end
def test_header_lines_reverse_list
tmux.send_keys "seq 100 | #{fzf '--header-lines=10 -q 5 --layout=reverse-list'}", :Enter
2.times do
tmux.until do |lines|
lines[0] == '> 50' &&
lines[-4] == ' 2' &&
lines[-3] == ' 1' &&
lines[-2].include?('/90')
end
tmux.send_keys :Up
end
tmux.send_keys :Enter
assert_equal '50', readonce.chomp
end
def test_header_lines_overflow
tmux.send_keys "seq 100 | #{fzf '--header-lines=200'}", :Enter
tmux.until do |lines|
@ -1087,7 +1102,8 @@ class TestGoFZF < TestBase
header = File.readlines(FILE).take(5).map(&:strip)
tmux.until do |lines|
lines[-2].include?('100/100') &&
lines[-7..-3].map(&:strip) == header
lines[-7..-3].map(&:strip) == header &&
lines[-8] == '> 1'
end
end
@ -1096,7 +1112,18 @@ class TestGoFZF < TestBase
header = File.readlines(FILE).take(5).map(&:strip)
tmux.until do |lines|
lines[1].include?('100/100') &&
lines[2..6].map(&:strip) == header
lines[2..6].map(&:strip) == header &&
lines[7] == '> 1'
end
end
def test_header_reverse_list
tmux.send_keys "seq 100 | #{fzf "--header=\\\"\\$(head -5 #{FILE})\\\" --layout=reverse-list"}", :Enter
header = File.readlines(FILE).take(5).map(&:strip)
tmux.until do |lines|
lines[-2].include?('100/100') &&
lines[-7..-3].map(&:strip) == header &&
lines[0] == '> 1'
end
end
@ -1120,6 +1147,16 @@ class TestGoFZF < TestBase
end
end
def test_header_and_header_lines_reverse_list
tmux.send_keys "seq 100 | #{fzf "--layout=reverse-list --header-lines 10 --header \\\"\\$(head -5 #{FILE})\\\""}", :Enter
header = File.readlines(FILE).take(5).map(&:strip)
tmux.until do |lines|
lines[-2].include?('90/90') &&
lines[-7...-2].map(&:strip) == header &&
lines[-17...-7].map(&:strip) == (1..10).map(&:to_s).reverse
end
end
def test_cancel
tmux.send_keys "seq 10 | #{fzf '--bind 2:cancel'}", :Enter
tmux.until { |lines| lines[-2].include?('10/10') }
@ -1145,6 +1182,12 @@ class TestGoFZF < TestBase
tmux.send_keys :Enter
end
def test_margin_reverse_list
tmux.send_keys "yes | head -1000 | #{fzf '--margin 5,3 --layout=reverse-list'}", :Enter
tmux.until { |lines| lines[4] == '' && lines[5] == ' > y' }
tmux.send_keys :Enter
end
def test_tabstop
writelines tempname, ["f\too\tba\tr\tbaz\tbarfooq\tux"]
{

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