Llewellyn/fzf
1
0
Fork 0
mirror of https://github.com/Llewellynvdm/fzf.git synced 2024-12-23 03:19:01 +00:00
Code Issues Projects Releases Wiki Activity

Implement change-preview and change-preview-window actions

Browse Source 
The new actions are named with 'change-' prefix to differentiate from
the pre-existing, one-off 'preview(...)' action.

Fix #2360
Fix #2505
Fix #2666

Related #2435
Related #2376
  - Can set up multiple bindings with different change-preview-window actions
  - Not possible to "rotate" through the options with a single binding
  - Enlarge or shrink not possible
This commit is contained in:
Junegunn Choi 2021-11-30 23:37:48 +09:00
parent 7da287e3aa
commit 20b4e6953e
No known key found for this signature in database
GPG Key ID: 254BC280FEF9C627
5 changed files with 367 additions and 221 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
CHANGELOG.md
View File

@ -1,6 +1,13 @@
CHANGELOG
=========
0.29.0
------
- Added `change-preview(...)` action to change the `--preview` command
- cf. `preview(...)` is a one-off action that doesn't change the default
preview command
- Added `change-preview-window(...)` action
0.28.0
------
- Added `--header-first` option to print header before the prompt line

114
man/man1/fzf.1
View File

@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
..
.TH fzf 1 "Nov 2021" "fzf 0.28.0" "fzf - a command-line fuzzy finder"
.TH fzf 1 "Dec 2021" "fzf 0.29.0" "fzf - a command-line fuzzy finder"
.SH NAME
fzf - a command-line fuzzy finder
@ -810,77 +810,79 @@ e.g.
A key or an event can be bound to one or more of the following actions.
\fBACTION: DEFAULT BINDINGS (NOTES):
\fBabort\fR \fIctrl-c ctrl-g ctrl-q esc\fR
\fBaccept\fR \fIenter double-click\fR
\fBaccept-non-empty\fR (same as \fBaccept\fR except that it prevents fzf from exiting without selection)
\fBbackward-char\fR \fIctrl-b left\fR
\fBbackward-delete-char\fR \fIctrl-h bspace\fR
\fBbackward-delete-char/eof\fR (same as \fBbackward-delete-char\fR except aborts fzf if query is empty)
\fBbackward-kill-word\fR \fIalt-bs\fR
\fBbackward-word\fR \fIalt-b shift-left\fR
\fBbeginning-of-line\fR \fIctrl-a home\fR
\fBcancel\fR (clear query string if not empty, abort fzf otherwise)
\fBchange-prompt(...)\fR (change prompt to the given string)
\fBclear-screen\fR \fIctrl-l\fR
\fBclear-selection\fR (clear multi-selection)
\fBclose\fR (close preview window if open, abort fzf otherwise)
\fBclear-query\fR (clear query string)
\fBdelete-char\fR \fIdel\fR
\fBdelete-char/eof\fR \fIctrl-d\fR (same as \fBdelete-char\fR except aborts fzf if query is empty)
\fBabort\fR \fIctrl-c ctrl-g ctrl-q esc\fR
\fBaccept\fR \fIenter double-click\fR
\fBaccept-non-empty\fR (same as \fBaccept\fR except that it prevents fzf from exiting without selection)
\fBbackward-char\fR \fIctrl-b left\fR
\fBbackward-delete-char\fR \fIctrl-h bspace\fR
\fBbackward-delete-char/eof\fR (same as \fBbackward-delete-char\fR except aborts fzf if query is empty)
\fBbackward-kill-word\fR \fIalt-bs\fR
\fBbackward-word\fR \fIalt-b shift-left\fR
\fBbeginning-of-line\fR \fIctrl-a home\fR
\fBcancel\fR (clear query string if not empty, abort fzf otherwise)
\fBchange-preview(...)\fR (change \fB--preview\fR option)
\fBchange-preview-window(...)\fR (change \fB--preview-window\fR option)
\fBchange-prompt(...)\fR (change prompt to the given string)
\fBclear-screen\fR \fIctrl-l\fR
\fBclear-selection\fR (clear multi-selection)
\fBclose\fR (close preview window if open, abort fzf otherwise)
\fBclear-query\fR (clear query string)
\fBdelete-char\fR \fIdel\fR
\fBdelete-char/eof\fR \fIctrl-d\fR (same as \fBdelete-char\fR except aborts fzf if query is empty)
\fBdeselect\fR
\fBdeselect-all\fR (deselect all matches)
\fBdisable-search\fR (disable search functionality)
\fBdown\fR \fIctrl-j ctrl-n down\fR
\fBenable-search\fR (enable search functionality)
\fBend-of-line\fR \fIctrl-e end\fR
\fBexecute(...)\fR (see below for the details)
\fBexecute-silent(...)\fR (see below for the details)
\fBfirst\fR (move to the first match)
\fBforward-char\fR \fIctrl-f right\fR
\fBforward-word\fR \fIalt-f shift-right\fR
\fBdeselect-all\fR (deselect all matches)
\fBdisable-search\fR (disable search functionality)
\fBdown\fR \fIctrl-j ctrl-n down\fR
\fBenable-search\fR (enable search functionality)
\fBend-of-line\fR \fIctrl-e end\fR
\fBexecute(...)\fR (see below for the details)
\fBexecute-silent(...)\fR (see below for the details)
\fBfirst\fR (move to the first match)
\fBforward-char\fR \fIctrl-f right\fR
\fBforward-word\fR \fIalt-f shift-right\fR
\fBignore\fR
\fBjump\fR (EasyMotion-like 2-keystroke movement)
\fBjump-accept\fR (jump and accept)
\fBjump\fR (EasyMotion-like 2-keystroke movement)
\fBjump-accept\fR (jump and accept)
\fBkill-line\fR
\fBkill-word\fR \fIalt-d\fR
\fBlast\fR (move to the last match)
\fBnext-history\fR (\fIctrl-n\fR on \fB--history\fR)
\fBpage-down\fR \fIpgdn\fR
\fBpage-up\fR \fIpgup\fR
\fBkill-word\fR \fIalt-d\fR
\fBlast\fR (move to the last match)
\fBnext-history\fR (\fIctrl-n\fR on \fB--history\fR)
\fBpage-down\fR \fIpgdn\fR
\fBpage-up\fR \fIpgup\fR
\fBhalf-page-down\fR
\fBhalf-page-up\fR
\fBpreview(...)\fR (see below for the details)
\fBpreview-down\fR \fIshift-down\fR
\fBpreview-up\fR \fIshift-up\fR
\fBpreview(...)\fR (see below for the details)
\fBpreview-down\fR \fIshift-down\fR
\fBpreview-up\fR \fIshift-up\fR
\fBpreview-page-down\fR
\fBpreview-page-up\fR
\fBpreview-half-page-down\fR
\fBpreview-half-page-up\fR
\fBpreview-bottom\fR
\fBpreview-top\fR
\fBprevious-history\fR (\fIctrl-p\fR on \fB--history\fR)
\fBprint-query\fR (print query and exit)
\fBput\fR (put the character to the prompt)
\fBprevious-history\fR (\fIctrl-p\fR on \fB--history\fR)
\fBprint-query\fR (print query and exit)
\fBput\fR (put the character to the prompt)
\fBrefresh-preview\fR
\fBreload(...)\fR (see below for the details)
\fBreplace-query\fR (replace query string with the current selection)
\fBreload(...)\fR (see below for the details)
\fBreplace-query\fR (replace query string with the current selection)
\fBselect\fR
\fBselect-all\fR (select all matches)
\fBtoggle\fR (\fIright-click\fR)
\fBtoggle-all\fR (toggle all matches)
\fBtoggle+down\fR \fIctrl-i (tab)\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)
\fBselect-all\fR (select all matches)
\fBtoggle\fR (\fIright-click\fR)
\fBtoggle-all\fR (toggle all matches)
\fBtoggle+down\fR \fIctrl-i (tab)\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-search\fR (toggle search functionality)
\fBtoggle-search\fR (toggle search functionality)
\fBtoggle-sort\fR
\fBtoggle+up\fR \fIbtab (shift-tab)\fR
\fBunbind(...)\fR (unbind bindings)
\fBunix-line-discard\fR \fIctrl-u\fR
\fBunix-word-rubout\fR \fIctrl-w\fR
\fBup\fR \fIctrl-k ctrl-p up\fR
\fByank\fR \fIctrl-y\fR
\fBtoggle+up\fR \fIbtab (shift-tab)\fR
\fBunbind(...)\fR (unbind bindings)
\fBunix-line-discard\fR \fIctrl-u\fR
\fBunix-word-rubout\fR \fIctrl-w\fR
\fBup\fR \fIctrl-k ctrl-p up\fR
\fByank\fR \fIctrl-y\fR
.SS ACTION COMPOSITION

45
src/options.go
View File

@ -176,6 +176,14 @@ type previewOpts struct {
headerLines int
}
func (a previewOpts) sameLayout(b previewOpts) bool {
return a.size == b.size && a.position == b.position && a.border == b.border && a.hidden == b.hidden
}
func (a previewOpts) sameContentLayout(b previewOpts) bool {
return a.wrap == b.wrap && a.headerLines == b.headerLines
}
// Options stores the values of command-line options
type Options struct {
Fuzzy bool
@ -787,7 +795,7 @@ func init() {
// Backreferences are not supported.
// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
executeRegexp = regexp.MustCompile(
`(?si)[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|unbind):.+|[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|unbind)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
`(?si)[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|change-preview-window|change-preview|unbind):.+|[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|change-preview-window|change-preview|unbind)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
}
func parseKeymap(keymap map[tui.Event][]action, str string) {
@ -799,6 +807,10 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
prefix := symbol + "execute"
if strings.HasPrefix(src[1:], "reload") {
prefix = symbol + "reload"
} else if strings.HasPrefix(src[1:], "change-preview-window") {
prefix = symbol + "change-preview-window"
} else if strings.HasPrefix(src[1:], "change-preview") {
prefix = symbol + "change-preview"
} else if strings.HasPrefix(src[1:], "preview") {
prefix = symbol + "preview"
} else if strings.HasPrefix(src[1:], "unbind") {
@ -1002,6 +1014,10 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
offset = len("reload")
case actPreview:
offset = len("preview")
case actChangePreviewWindow:
offset = len("change-preview-window")
case actChangePreview:
offset = len("change-preview")
case actChangePrompt:
offset = len("change-prompt")
case actUnbind:
@ -1028,6 +1044,9 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
}
if t == actUnbind {
parseKeyChords(actionArg, "unbind target required")
} else if t == actChangePreviewWindow {
opts := previewOpts{}
parsePreviewWindow(&opts, actionArg)
}
}
}
@ -1053,6 +1072,10 @@ func isExecuteAction(str string) actionType {
return actUnbind
case "preview":
return actPreview
case "change-preview-window":
return actChangePreviewWindow
case "change-preview":
return actChangePreview
case "change-prompt":
return actChangePrompt
case "execute":
@ -1633,11 +1656,29 @@ func postProcessOptions(opts *Options) {
// Extend the default key map
keymap := defaultKeymap()
for key, actions := range opts.Keymap {
lastChangePreviewWindow := action{t: actIgnore}
for _, act := range actions {
if act.t == actToggleSort {
switch act.t {
case actToggleSort:
// To display "+S"/"-S" on info line
opts.ToggleSort = true
case actChangePreviewWindow:
lastChangePreviewWindow = act
}
}
// Re-organize actions so that we only keep the last change-preview-window
// and it comes first in the list.
// * change-preview-window(up,+10)+preview(sleep 3; cat {})+change-preview-window(up,+20)
// -> change-preview-window(up,+20)+preview(sleep 3; cat {})
if lastChangePreviewWindow.t == actChangePreviewWindow {
reordered := []action{lastChangePreviewWindow}
for _, act := range actions {
if act.t != actChangePreviewWindow {
reordered = append(reordered, act)
}
}
actions = reordered
}
keymap[key] = actions
}
opts.Keymap = keymap

373
src/terminal.go
View File

@ -104,88 +104,89 @@ var emptyLine = itemLine{}
// Terminal represents terminal input/output
type Terminal struct {
initDelay time.Duration
infoStyle infoStyle
spinner []string
prompt func()
promptLen int
pointer string
pointerLen int
pointerEmpty string
marker string
markerLen int
markerEmpty string
queryLen [2]int
layout layoutType
fullscreen bool
keepRight bool
hscroll bool
hscrollOff int
scrollOff int
wordRubout string
wordNext string
cx int
cy int
offset int
xoffset int
yanked []rune
input []rune
multi int
sort bool
toggleSort bool
delimiter Delimiter
expect map[tui.Event]string
keymap map[tui.Event][]action
pressed string
printQuery bool
history *History
cycle bool
headerFirst bool
headerLines int
header []string
header0 []string
ansi bool
tabstop int
margin [4]sizeSpec
padding [4]sizeSpec
strong tui.Attr
unicode bool
borderShape tui.BorderShape
cleanExit bool
paused bool
border tui.Window
window tui.Window
pborder tui.Window
pwindow tui.Window
count int
progress int
reading bool
running bool
failed *string
jumping jumpMode
jumpLabels string
printer func(string)
printsep string
merger *Merger
selected map[int32]selectedItem
version int64
reqBox *util.EventBox
previewOpts previewOpts
previewer previewer
previewed previewed
previewBox *util.EventBox
eventBox *util.EventBox
mutex sync.Mutex
initFunc func()
prevLines []itemLine
suppress bool
sigstop bool
startChan chan bool
killChan chan int
slab *util.Slab
theme *tui.ColorTheme
tui tui.Renderer
executing *util.AtomicBool
initDelay time.Duration
infoStyle infoStyle
spinner []string
prompt func()
promptLen int
pointer string
pointerLen int
pointerEmpty string
marker string
markerLen int
markerEmpty string
queryLen [2]int
layout layoutType
fullscreen bool
keepRight bool
hscroll bool
hscrollOff int
scrollOff int
wordRubout string
wordNext string
cx int
cy int
offset int
xoffset int
yanked []rune
input []rune
multi int
sort bool
toggleSort bool
delimiter Delimiter
expect map[tui.Event]string
keymap map[tui.Event][]action
pressed string
printQuery bool
history *History
cycle bool
headerFirst bool
headerLines int
header []string
header0 []string
ansi bool
tabstop int
margin [4]sizeSpec
padding [4]sizeSpec
strong tui.Attr
unicode bool
borderShape tui.BorderShape
cleanExit bool
paused bool
border tui.Window
window tui.Window
pborder tui.Window
pwindow tui.Window
count int
progress int
reading bool
running bool
failed *string
jumping jumpMode
jumpLabels string
printer func(string)
printsep string
merger *Merger
selected map[int32]selectedItem
version int64
reqBox *util.EventBox
initialPreviewOpts previewOpts
previewOpts previewOpts
previewer previewer
previewed previewed
previewBox *util.EventBox
eventBox *util.EventBox
mutex sync.Mutex
initFunc func()
prevLines []itemLine
suppress bool
sigstop bool
startChan chan bool
killChan chan int
slab *util.Slab
theme *tui.ColorTheme
tui tui.Renderer
executing *util.AtomicBool
}
type selectedItem struct {
@ -286,6 +287,8 @@ const (
actTogglePreview
actTogglePreviewWrap
actPreview
actChangePreview
actChangePreviewWindow
actPreviewTop
actPreviewBottom
actPreviewUp
@ -324,9 +327,10 @@ type searchRequest struct {
}
type previewRequest struct {
template string
pwindow tui.Window
list []*Item
template string
pwindow tui.Window
scrollOffset int
list []*Item
}
type previewResult struct {
@ -416,7 +420,7 @@ func trimQuery(query string) []rune {
func hasPreviewAction(opts *Options) bool {
for _, actions := range opts.Keymap {
for _, action := range actions {
if action.t == actPreview {
if action.t == actPreview || action.t == actChangePreview {
return true
}
}
@ -496,72 +500,73 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
wordNext = fmt.Sprintf("[^%s]%s|(.$)", sep, sep)
}
t := Terminal{
initDelay: delay,
infoStyle: opts.InfoStyle,
spinner: makeSpinner(opts.Unicode),
queryLen: [2]int{0, 0},
layout: opts.Layout,
fullscreen: fullscreen,
keepRight: opts.KeepRight,
hscroll: opts.Hscroll,
hscrollOff: opts.HscrollOff,
scrollOff: opts.ScrollOff,
wordRubout: wordRubout,
wordNext: wordNext,
cx: len(input),
cy: 0,
offset: 0,
xoffset: 0,
yanked: []rune{},
input: input,
multi: opts.Multi,
sort: opts.Sort > 0,
toggleSort: opts.ToggleSort,
delimiter: opts.Delimiter,
expect: opts.Expect,
keymap: opts.Keymap,
pressed: "",
printQuery: opts.PrintQuery,
history: opts.History,
margin: opts.Margin,
padding: opts.Padding,
unicode: opts.Unicode,
borderShape: opts.BorderShape,
cleanExit: opts.ClearOnExit,
paused: opts.Phony,
strong: strongAttr,
cycle: opts.Cycle,
headerFirst: opts.HeaderFirst,
headerLines: opts.HeaderLines,
header: header,
header0: header,
ansi: opts.Ansi,
tabstop: opts.Tabstop,
reading: true,
running: true,
failed: nil,
jumping: jumpDisabled,
jumpLabels: opts.JumpLabels,
printer: opts.Printer,
printsep: opts.PrintSep,
merger: EmptyMerger,
selected: make(map[int32]selectedItem),
reqBox: util.NewEventBox(),
previewOpts: opts.Preview,
previewer: previewer{0, []string{}, 0, showPreviewWindow, false, true, false, ""},
previewed: previewed{0, 0, 0, false},
previewBox: previewBox,
eventBox: eventBox,
mutex: sync.Mutex{},
suppress: true,
sigstop: false,
slab: util.MakeSlab(slab16Size, slab32Size),
theme: opts.Theme,
startChan: make(chan bool, 1),
killChan: make(chan int),
tui: renderer,
initFunc: func() { renderer.Init() },
executing: util.NewAtomicBool(false)}
initDelay: delay,
infoStyle: opts.InfoStyle,
spinner: makeSpinner(opts.Unicode),
queryLen: [2]int{0, 0},
layout: opts.Layout,
fullscreen: fullscreen,
keepRight: opts.KeepRight,
hscroll: opts.Hscroll,
hscrollOff: opts.HscrollOff,
scrollOff: opts.ScrollOff,
wordRubout: wordRubout,
wordNext: wordNext,
cx: len(input),
cy: 0,
offset: 0,
xoffset: 0,
yanked: []rune{},
input: input,
multi: opts.Multi,
sort: opts.Sort > 0,
toggleSort: opts.ToggleSort,
delimiter: opts.Delimiter,
expect: opts.Expect,
keymap: opts.Keymap,
pressed: "",
printQuery: opts.PrintQuery,
history: opts.History,
margin: opts.Margin,
padding: opts.Padding,
unicode: opts.Unicode,
borderShape: opts.BorderShape,
cleanExit: opts.ClearOnExit,
paused: opts.Phony,
strong: strongAttr,
cycle: opts.Cycle,
headerFirst: opts.HeaderFirst,
headerLines: opts.HeaderLines,
header: header,
header0: header,
ansi: opts.Ansi,
tabstop: opts.Tabstop,
reading: true,
running: true,
failed: nil,
jumping: jumpDisabled,
jumpLabels: opts.JumpLabels,
printer: opts.Printer,
printsep: opts.PrintSep,
merger: EmptyMerger,
selected: make(map[int32]selectedItem),
reqBox: util.NewEventBox(),
initialPreviewOpts: opts.Preview,
previewOpts: opts.Preview,
previewer: previewer{0, []string{}, 0, showPreviewWindow, false, true, false, ""},
previewed: previewed{0, 0, 0, false},
previewBox: previewBox,
eventBox: eventBox,
mutex: sync.Mutex{},
suppress: true,
sigstop: false,
slab: util.MakeSlab(slab16Size, slab32Size),
theme: opts.Theme,
startChan: make(chan bool, 1),
killChan: make(chan int),
tui: renderer,
initFunc: func() { renderer.Init() },
executing: util.NewAtomicBool(false)}
t.prompt, t.promptLen = t.parsePrompt(opts.Prompt)
t.pointer, t.pointerLen = t.processTabs([]rune(opts.Pointer), 0)
t.marker, t.markerLen = t.processTabs([]rune(opts.Marker), 0)
@ -1642,9 +1647,14 @@ func (t *Terminal) replacePlaceholder(template string, forcePlus bool, input str
template, t.ansi, t.delimiter, t.printsep, forcePlus, input, list)
}
func (t *Terminal) evaluateScrollOffset(list []*Item, height int) int {
func (t *Terminal) evaluateScrollOffset() int {
if t.pwindow == nil {
return 0
}
// We only need the current item to calculate the scroll offset
offsetExpr := offsetTrimCharsRegex.ReplaceAllString(
t.replacePlaceholder(t.previewOpts.scroll, false, "", list), "")
t.replacePlaceholder(t.previewOpts.scroll, false, "", []*Item{t.currentItem(), nil}), "")
atoi := func(s string) int {
n, e := strconv.Atoi(s)
@ -1655,20 +1665,21 @@ func (t *Terminal) evaluateScrollOffset(list []*Item, height int) int {
}
base := -1
height := util.Max(0, t.pwindow.Height()-t.previewOpts.headerLines)
for _, component := range offsetComponentRegex.FindAllString(offsetExpr, -1) {
if strings.HasPrefix(component, "-/") {
component = component[1:]
}
if component[0] == '/' {
denom := atoi(component[1:])
if denom == 0 {
return base
if denom != 0 {
base -= height / denom
}
return base - height/denom
break
}
base += atoi(component)
}
return base
return util.Max(0, base)
}
func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, printsep string, forcePlus bool, query string, allItems []*Item) string {
@ -1972,12 +1983,14 @@ func (t *Terminal) Loop() {
var items []*Item
var commandTemplate string
var pwindow tui.Window
initialOffset := 0
t.previewBox.Wait(func(events *util.Events) {
for req, value := range *events {
switch req {
case reqPreviewEnqueue:
request := value.(previewRequest)
commandTemplate = request.template
initialOffset = request.scrollOffset
items = request.list
pwindow = request.pwindow
}
@ -1989,11 +2002,9 @@ func (t *Terminal) Loop() {
if items[0] != nil {
_, query := t.Input()
command := t.replacePlaceholder(commandTemplate, false, string(query), items)
initialOffset := 0
cmd := util.ExecCommand(command, true)
if pwindow != nil {
height := pwindow.Height()
initialOffset = util.Max(0, t.evaluateScrollOffset(items, util.Max(0, height-t.previewOpts.headerLines)))
env := os.Environ()
lines := fmt.Sprintf("LINES=%d", height)
columns := fmt.Sprintf("COLUMNS=%d", pwindow.Width())
@ -2128,7 +2139,7 @@ func (t *Terminal) Loop() {
if len(command) > 0 && t.isPreviewEnabled() {
_, list := t.buildPlusList(command, false)
t.cancelPreview()
t.previewBox.Set(reqPreviewEnqueue, previewRequest{command, t.pwindow, list})
t.previewBox.Set(reqPreviewEnqueue, previewRequest{command, t.pwindow, t.evaluateScrollOffset(), list})
}
}
@ -2253,13 +2264,16 @@ func (t *Terminal) Loop() {
}
}
}
togglePreview := func(enabled bool) {
togglePreview := func(enabled bool) bool {
if t.previewer.enabled != enabled {
t.previewer.enabled = enabled
// We need to immediately update t.pwindow so we don't use reqRedraw
t.tui.Clear()
t.resizeWindows()
req(reqPrompt, reqList, reqInfo, reqHeader)
return true
}
return false
}
toggle := func() bool {
current := t.currentItem()
@ -2327,7 +2341,7 @@ func (t *Terminal) Loop() {
if valid {
t.cancelPreview()
t.previewBox.Set(reqPreviewEnqueue,
previewRequest{t.previewOpts.command, t.pwindow, list})
previewRequest{t.previewOpts.command, t.pwindow, t.evaluateScrollOffset(), list})
}
}
}
@ -2707,6 +2721,39 @@ func (t *Terminal) Loop() {
for key := range keys {
delete(t.keymap, key)
}
case actChangePreview:
if t.previewOpts.command != a.a {
togglePreview(len(a.a) > 0)
t.previewOpts.command = a.a
refreshPreview(t.previewOpts.command)
}
case actChangePreviewWindow:
currentPreviewOpts := t.previewOpts
// Reset preview options and apply the additional options
t.previewOpts = t.initialPreviewOpts
parsePreviewWindow(&t.previewOpts, a.a)
if t.previewOpts.hidden {
togglePreview(false)
} else {
// Full redraw
if !currentPreviewOpts.sameLayout(t.previewOpts) {
if togglePreview(true) {
refreshPreview(t.previewOpts.command)
} else {
req(reqRedraw)
}
} else if !currentPreviewOpts.sameContentLayout(t.previewOpts) {
t.previewed.version = 0
req(reqPreviewRefresh)
}
// Adjust scroll offset
if t.hasPreviewWindow() && currentPreviewOpts.scroll != t.previewOpts.scroll {
scrollPreviewTo(t.evaluateScrollOffset())
}
}
}
return true
}

49
test/test_go.rb
View File

@ -2142,6 +2142,55 @@ class TestGoFZF < TestBase
assert_equal expected.chomp, lines.take(6).join("\n")
end
end
def test_change_preview_window
tmux.send_keys "seq 1000 | #{FZF} --preview 'echo [[{}]]' --preview-window border-none --bind '" \
'a:change-preview(echo __{}__),' \
'b:change-preview-window(down)+change-preview(echo =={}==)+change-preview-window(up),' \
'c:change-preview(),d:change-preview-window(hidden),' \
"e:preview(printf ::%${FZF_PREVIEW_COLUMNS}s{})+change-preview-window(up),f:change-preview-window(up,wrap)'", :Enter
tmux.until { |lines| assert_equal 1000, lines.item_count }
tmux.until { |lines| assert_includes lines[0], '[[1]]' }
# change-preview action permanently changes the preview command set by --preview
tmux.send_keys 'a'
tmux.until { |lines| assert_includes lines[0], '__1__' }
tmux.send_keys :Up
tmux.until { |lines| assert_includes lines[0], '__2__' }
# When multiple change-preview-window actions are bound to a single key,
# the last one wins and the updated options are immediately applied to the new preview
tmux.send_keys 'b'
tmux.until { |lines| assert_equal '==2==', lines[0] }
tmux.send_keys :Up
tmux.until { |lines| assert_equal '==3==', lines[0] }
# change-preview with an empty preview command closes the preview window
tmux.send_keys 'c'
tmux.until { |lines| refute_includes lines[0], '==' }
# change-preview again to re-open the preview window
tmux.send_keys 'a'
tmux.until { |lines| assert_equal '__3__', lines[0] }
# Hide the preview window with hidden flag
tmux.send_keys 'd'
tmux.until { |lines| refute_includes lines[0], '__3__' }
# One-off preview
tmux.send_keys 'e'
tmux.until do |lines|
assert_equal '::', lines[0]
refute_includes lines[1], '3'
end
# Wrapped
tmux.send_keys 'f'
tmux.until do |lines|
assert_equal '::', lines[0]
assert_equal ' 3', lines[1]
end
end
end
module TestShell