0.23.0

e.g. --preview-window sharp --preview-window cycle

CHANGELOG.md

@@ -1,6 +1,30 @@
 CHANGELOG
 =========
 
+0.23.0
+------
+- Support preview scroll offset relative to window height
+  ```sh
+  git grep --line-number '' |
+    fzf --delimiter : \
+        --preview 'bat --style=numbers --color=always --highlight-line {2} {1}' \
+        --preview-window +{2}-/2
+  ```
+- Added `--preview-window` option for sharp edges (`--preview-window sharp`)
+- Added `--preview-window` option for cyclic scrolling (`--preview-window cycle`)
+- Reduced vertical padding around the preview window when `--preview-window
+  noborder` is used
+- Added actions for preview window
+    - `preview-half-page-up`
+    - `preview-half-page-down`
+- Vim
+    - Popup width and height can be given in absolute integer values
+    - Added `fzf#exec()` function for getting the path of fzf executable
+        - It also downloads the latest binary if it's not available by running
+          `./install --bin`
+- Built with Go 1.15.2
+    - We no longer provide 32-bit binaries
+
 0.22.0
 ------
 - Added more options for `--bind`

Makefile

@@ -8,7 +8,6 @@ SOURCES        := $(wildcard *.go src/*.go src/*/*.go) $(MAKEFILE)
 REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES))
 BUILD_FLAGS    := -a -ldflags "-X main.revision=$(REVISION) -w '-extldflags=$(LDFLAGS)'" -tags "$(TAGS)"
 
-BINARY32       := fzf-$(GOOS)_386
 BINARY64       := fzf-$(GOOS)_amd64
 BINARYARM5     := fzf-$(GOOS)_arm5
 BINARYARM6     := fzf-$(GOOS)_arm6
@@ -16,7 +15,6 @@ BINARYARM7     := fzf-$(GOOS)_arm7
 BINARYARM8     := fzf-$(GOOS)_arm8
 BINARYPPC64LE  := fzf-$(GOOS)_ppc64le
 VERSION        := $(shell awk -F= '/version =/ {print $$2}' src/constants.go | tr -d "\" ")
-RELEASE32      := fzf-$(VERSION)-$(GOOS)_386
 RELEASE64      := fzf-$(VERSION)-$(GOOS)_amd64
 RELEASEARM5    := fzf-$(VERSION)-$(GOOS)_arm5
 RELEASEARM6    := fzf-$(VERSION)-$(GOOS)_arm6
@@ -30,10 +28,6 @@ ifeq ($(UNAME_M),x86_64)
 	BINARY := $(BINARY64)
 else ifeq ($(UNAME_M),amd64)
 	BINARY := $(BINARY64)
-else ifeq ($(UNAME_M),i686)
-	BINARY := $(BINARY32)
-else ifeq ($(UNAME_M),i386)
-	BINARY := $(BINARY32)
 else ifeq ($(UNAME_M),armv5l)
 	BINARY := $(BINARYARM5)
 else ifeq ($(UNAME_M),armv6l)
@@ -56,13 +50,11 @@ target:
 	mkdir -p $@
 
 ifeq ($(GOOS),windows)
-release: target/$(BINARY32) target/$(BINARY64)
-	cd target && cp -f $(BINARY32) fzf.exe && zip $(RELEASE32).zip fzf.exe
+release: target/$(BINARY64)
 	cd target && cp -f $(BINARY64) fzf.exe && zip $(RELEASE64).zip fzf.exe
 	cd target && rm -f fzf.exe
 else ifeq ($(GOOS),linux)
-release: target/$(BINARY32) target/$(BINARY64) target/$(BINARYARM5) target/$(BINARYARM6) target/$(BINARYARM7) target/$(BINARYARM8) target/$(BINARYPPC64LE)
-	cd target && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
+release: target/$(BINARY64) target/$(BINARYARM5) target/$(BINARYARM6) target/$(BINARYARM7) target/$(BINARYARM8) target/$(BINARYPPC64LE)
 	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
 	cd target && cp -f $(BINARYARM5) fzf && tar -czf $(RELEASEARM5).tgz fzf
 	cd target && cp -f $(BINARYARM6) fzf && tar -czf $(RELEASEARM6).tgz fzf
@@ -71,8 +63,7 @@ release: target/$(BINARY32) target/$(BINARY64) target/$(BINARYARM5) target/$(BIN
 	cd target && cp -f $(BINARYPPC64LE) fzf && tar -czf $(RELEASEPPC64LE).tgz fzf
 	cd target && rm -f fzf
 else
-release: target/$(BINARY32) target/$(BINARY64)
-	cd target && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
+release: target/$(BINARY64)
 	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
 	cd target && rm -f fzf
 endif
@@ -96,9 +87,6 @@ install: bin/fzf
 clean:
 	$(RM) -r target
 
-target/$(BINARY32): $(SOURCES)
-	GOARCH=386 $(GO) build $(BUILD_FLAGS) -o $@
-
 target/$(BINARY64): $(SOURCES)
 	GOARCH=amd64 $(GO) build $(BUILD_FLAGS) -o $@
 

README-VIM.md

@@ -127,8 +127,9 @@ let g:fzf_action = {
   \ 'ctrl-v': 'vsplit' }
 
 " Default fzf layout
-" - down / up / left / right
+" - down / up / left / right / window
 let g:fzf_layout = { 'down': '40%' }
+let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 
 " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
 let g:fzf_layout = { 'window': 'enew' }
@@ -290,8 +291,8 @@ When `window` entry is a dictionary, fzf will start in a popup window. The
 following options are allowed:
 
 - Required:
-    - `width` [float range [0 ~ 1]]
-    - `height` [float range [0 ~ 1]]
+    - `width` [float range [0 ~ 1]] or [integer range [8 ~ ]]
+    - `height` [float range [0 ~ 1]] or [integer range [4 ~ ]]
 - Optional:
     - `yoffset` [float default 0.5 range [0 ~ 1]]
     - `xoffset` [float default 0.5 range [0 ~ 1]]
@@ -386,8 +387,8 @@ The latest versions of Vim and Neovim include builtin terminal emulator
 
 ```vim
 " Required:
-" - width [float range [0 ~ 1]]
-" - height [float range [0 ~ 1]]
+" - width [float range [0 ~ 1]] or [integer range [8 ~ ]]
+" - height [float range [0 ~ 1]] or [integer range [4 ~ ]]
 "
 " Optional:
 " - xoffset [float default 0.5 range [0 ~ 1]]
@@ -416,8 +417,8 @@ When fzf starts in a terminal buffer, the file type of the buffer is set to
 `fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
 the window.
 
-For example, if you use the default layout (`{'down': '40%'}`) on Neovim, you
-might want to temporarily disable the statusline for a cleaner look.
+For example, if you use a non-popup layout (e.g. `{'down': '40%'}`) on Neovim,
+you might want to temporarily disable the statusline for a cleaner look.
 
 ```vim
 if has('nvim') && !exists('g:fzf_layout')

README.md

@@ -22,42 +22,50 @@ Pros
 Table of Contents
 -----------------
 
-   * [Installation](#installation)
-      * [Using Homebrew or Linuxbrew](#using-homebrew-or-linuxbrew)
-      * [Using git](#using-git)
-      * [Using Linux package managers](#using-linux-package-managers)
-      * [Windows](#windows)
-      * [As Vim plugin](#as-vim-plugin)
-   * [Upgrading fzf](#upgrading-fzf)
-   * [Building fzf](#building-fzf)
-   * [Usage](#usage)
-      * [Using the finder](#using-the-finder)
-      * [Layout](#layout)
-      * [Search syntax](#search-syntax)
-      * [Environment variables](#environment-variables)
-      * [Options](#options)
-      * [Demo](#demo)
-   * [Examples](#examples)
-   * [fzf-tmux script](#fzf-tmux-script)
-   * [Key bindings for command line](#key-bindings-for-command-line)
-   * [Fuzzy completion for bash and zsh](#fuzzy-completion-for-bash-and-zsh)
-      * [Files and directories](#files-and-directories)
-      * [Process IDs](#process-ids)
-      * [Host names](#host-names)
-      * [Environment variables / Aliases](#environment-variables--aliases)
-      * [Settings](#settings)
-      * [Supported commands](#supported-commands)
-      * [Custom fuzzy completion](#custom-fuzzy-completion)
-   * [Vim plugin](#vim-plugin)
-   * [Advanced topics](#advanced-topics)
-      * [Performance](#performance)
-      * [Executing external programs](#executing-external-programs)
-      * [Preview window](#preview-window)
-   * [Tips](#tips)
-      * [Respecting .gitignore](#respecting-gitignore)
-      * [Fish shell](#fish-shell)
-   * [Related projects](#related-projects)
-   * [<a href="LICENSE">License</a>](#license)
+<!-- vim-markdown-toc GFM -->
+
+* [Installation](#installation)
+  * [Using Homebrew or Linuxbrew](#using-homebrew-or-linuxbrew)
+  * [Using git](#using-git)
+  * [Using Linux package managers](#using-linux-package-managers)
+  * [Windows](#windows)
+  * [As Vim plugin](#as-vim-plugin)
+* [Upgrading fzf](#upgrading-fzf)
+* [Building fzf](#building-fzf)
+* [Usage](#usage)
+    * [Using the finder](#using-the-finder)
+    * [Layout](#layout)
+    * [Search syntax](#search-syntax)
+    * [Environment variables](#environment-variables)
+    * [Options](#options)
+    * [Demo](#demo)
+* [Examples](#examples)
+* [`fzf-tmux` script](#fzf-tmux-script)
+* [Key bindings for command-line](#key-bindings-for-command-line)
+* [Fuzzy completion for bash and zsh](#fuzzy-completion-for-bash-and-zsh)
+    * [Files and directories](#files-and-directories)
+    * [Process IDs](#process-ids)
+    * [Host names](#host-names)
+    * [Environment variables / Aliases](#environment-variables--aliases)
+    * [Settings](#settings)
+    * [Supported commands](#supported-commands)
+    * [Custom fuzzy completion](#custom-fuzzy-completion)
+* [Vim plugin](#vim-plugin)
+* [Advanced topics](#advanced-topics)
+  * [Performance](#performance)
+  * [Executing external programs](#executing-external-programs)
+  * [Reloading the candidate list](#reloading-the-candidate-list)
+    * [1. Update the list of processes by pressing CTRL-R](#1-update-the-list-of-processes-by-pressing-ctrl-r)
+    * [2. Switch between sources by pressing CTRL-D or CTRL-F](#2-switch-between-sources-by-pressing-ctrl-d-or-ctrl-f)
+    * [3. Interactive ripgrep integration](#3-interactive-ripgrep-integration)
+  * [Preview window](#preview-window)
+* [Tips](#tips)
+    * [Respecting `.gitignore`](#respecting-gitignore)
+    * [Fish shell](#fish-shell)
+* [Related projects](#related-projects)
+* [License](#license)
+
+<!-- vim-markdown-toc -->
 
 Installation
 ------------
@@ -528,6 +536,50 @@ fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort
 
 See *KEY BINDINGS* section of the man page for details.
 
+### Reloading the candidate list
+
+By binding `reload` action to a key or an event, you can make fzf dynamically
+reload the candidate list. See https://github.com/junegunn/fzf/issues/1750 for
+more details.
+
+#### 1. Update the list of processes by pressing CTRL-R
+
+```sh
+FZF_DEFAULT_COMMAND='ps -ef' \
+  fzf --bind 'ctrl-r:reload($FZF_DEFAULT_COMMAND)' \
+      --header 'Press CTRL-R to reload' --header-lines=1 \
+      --height=50% --layout=reverse
+```
+
+#### 2. Switch between sources by pressing CTRL-D or CTRL-F
+
+```sh
+FZF_DEFAULT_COMMAND='find . -type f' \
+  fzf --bind 'ctrl-d:reload(find . -type d),ctrl-f:reload($FZF_DEFAULT_COMMAND)' \
+      --height=50% --layout=reverse
+```
+
+#### 3. Interactive ripgrep integration
+
+The following example uses fzf as the selector interface for ripgrep. We bound
+`reload` action to `change` event, so every time you type on fzf, ripgrep
+process will restart with the updated query string denoted by the placeholder
+expression `{q}`. Also, note that we used `--phony` option so that fzf doesn't
+perform any secondary filtering.
+
+```sh
+INITIAL_QUERY=""
+RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \
+  fzf --bind "change:reload:$RG_PREFIX {q} || true" \
+      --ansi --phony --query "$INITIAL_QUERY" \
+      --height=50% --layout=reverse
+```
+
+If ripgrep doesn't find any matches, it will exit with a non-zero exit status,
+and fzf will warn you about it. To suppress the warning message, we added
+`|| true` to the command, so that it always exits with 0.
+
 ### Preview window
 
 When the `--preview` option is set, fzf automatically starts an external process 

doc/fzf.txt

@@ -154,8 +154,9 @@ Examples~
       \ 'ctrl-v': 'vsplit' }
 
     " Default fzf layout
-    " - down / up / left / right
+    " - down / up / left / right / window
     let g:fzf_layout = { 'down': '~40%' }
+    let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 
     " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
     let g:fzf_layout = { 'window': 'enew' }
@@ -305,8 +306,8 @@ When `window` entry is a dictionary, fzf will start in a popup window. The
 following options are allowed:
 
  - Required:
-   - `width` [float range [0 ~ 1]]
-   - `height` [float range [0 ~ 1]]
+   - `width` [float range [0 ~ 1]] or [integer range [8 ~ ]]
+   - `height` [float range [0 ~ 1]] or [integer range [4 ~ ]]
  - Optional:
    - `yoffset` [float default 0.5 range [0 ~ 1]]
    - `xoffset` [float default 0.5 range [0 ~ 1]]
@@ -426,8 +427,9 @@ When fzf starts in a terminal buffer, the file type of the buffer is set to
 `fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
 the window.
 
-For example, if you use the default layout (`{'down': '~40%'}`) on Neovim, you
-might want to temporarily disable the statusline for a cleaner look.
+For example, if you use a non-popup layout (e.g. `{'down': '40%'}`) on
+Neovim, you might want to temporarily disable the statusline for a cleaner
+look.
 >
     if has('nvim') && !exists('g:fzf_layout')
       autocmd! FileType fzf

go.mod

@@ -1,7 +1,7 @@
 module github.com/junegunn/fzf
 
 require (
-	github.com/gdamore/tcell v1.3.0
+	github.com/gdamore/tcell v1.4.0
 	github.com/lucasb-eyer/go-colorful v1.0.3 // indirect
 	github.com/mattn/go-isatty v0.0.12
 	github.com/mattn/go-runewidth v0.0.8

go.sum

@@ -1,8 +1,8 @@
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
-github.com/gdamore/tcell v1.3.0 h1:r35w0JBADPZCVQijYebl6YMWWtHRqVEGt7kL2eBADRM=
-github.com/gdamore/tcell v1.3.0/go.mod h1:Hjvr+Ofd+gLglo7RYKxxnzCBmev3BzsS67MebKS4zMM=
+github.com/gdamore/tcell v1.4.0 h1:vUnHwJRvcPQa3tzi+0QI4U9JINXYJlOz9yiaiPQ2wMU=
+github.com/gdamore/tcell v1.4.0/go.mod h1:vxEiSDZdW3L+Uhjii9c3375IlDmR05bzxY404ZVSMo0=
 github.com/lucasb-eyer/go-colorful v1.0.2 h1:mCMFu6PgSozg9tDNMMK3g18oJBX7oYGrC09mS6CXfO4=
 github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
 github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
@@ -11,6 +11,7 @@ github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHX
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-runewidth v0.0.8 h1:3tS41NlGYSmhhe/8fhGRzc+z3AYCw1Fe1WAyLuujKs0=
 github.com/mattn/go-runewidth v0.0.8/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-shellwords v1.0.9 h1:eaB5JspOwiKKcHdqcjbfe5lA9cNn/4NRRtddXJCimqk=

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.22.0
+version=0.23.0
 auto_completion=
 key_bindings=
 update_config=2
@@ -28,9 +28,6 @@ usage: $0 [OPTIONS]
     --no-bash            Do not set up bash configuration
     --no-zsh             Do not set up zsh configuration
     --no-fish            Do not set up fish configuration
-
-    --32                 Download 32-bit binary
-    --64                 Download 64-bit binary
 EOF
 }
 
@@ -56,8 +53,6 @@ for opt in "$@"; do
     --no-completion)   auto_completion=0 ;;
     --update-rc)       update_config=1   ;;
     --no-update-rc)    update_config=0   ;;
-    --32)              binary_arch=386   ;;
-    --64)              binary_arch=amd64 ;;
     --bin)             ;;
     --no-bash)         shells=${shells/bash/} ;;
     --no-zsh)          shells=${shells/zsh/} ;;
@@ -179,24 +174,17 @@ binary_available=1
 binary_error=""
 case "$archi" in
   Darwin\ *64)   download fzf-$version-darwin_${binary_arch:-amd64}.tgz  ;;
-  Darwin\ *86)   download fzf-$version-darwin_${binary_arch:-386}.tgz    ;;
   Linux\ armv5*) download fzf-$version-linux_${binary_arch:-arm5}.tgz    ;;
   Linux\ armv6*) download fzf-$version-linux_${binary_arch:-arm6}.tgz    ;;
   Linux\ armv7*) download fzf-$version-linux_${binary_arch:-arm7}.tgz    ;;
   Linux\ armv8*) download fzf-$version-linux_${binary_arch:-arm8}.tgz    ;;
   Linux\ aarch64*) download fzf-$version-linux_${binary_arch:-arm8}.tgz  ;;
   Linux\ *64)    download fzf-$version-linux_${binary_arch:-amd64}.tgz   ;;
-  Linux\ *86)    download fzf-$version-linux_${binary_arch:-386}.tgz     ;;
   FreeBSD\ *64)  download fzf-$version-freebsd_${binary_arch:-amd64}.tgz ;;
-  FreeBSD\ *86)  download fzf-$version-freebsd_${binary_arch:-386}.tgz   ;;
   OpenBSD\ *64)  download fzf-$version-openbsd_${binary_arch:-amd64}.tgz ;;
-  OpenBSD\ *86)  download fzf-$version-openbsd_${binary_arch:-386}.tgz   ;;
   CYGWIN*\ *64)  download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
-  MINGW*\ *86)   download fzf-$version-windows_${binary_arch:-386}.zip   ;;
   MINGW*\ *64)   download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
-  MSYS*\ *86)    download fzf-$version-windows_${binary_arch:-386}.zip   ;;
   MSYS*\ *64)    download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
-  Windows*\ *86) download fzf-$version-windows_${binary_arch:-386}.zip   ;;
   Windows*\ *64) download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
   *)             binary_available=0 binary_error=1 ;;
 esac

install.ps1

@@ -1,4 +1,4 @@
-$version="0.22.0"
+$version="0.23.0"
 
 if ([Environment]::Is64BitProcess) {
   $binary_arch="amd64"

man/man1/fzf-tmux.1

@@ -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-tmux 1 "Aug 2020" "fzf 0.22.0" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Oct 2020" "fzf 0.23.0" "fzf-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf-tmux - open fzf in tmux split pane

man/man1/fzf.1

@@ -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 "Aug 2020" "fzf 0.22.0" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Oct 2020" "fzf 0.23.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -381,7 +381,7 @@ Preview window will be updated even when there is no match for the current
 query if any of the placeholder expressions evaluates to a non-empty string.
 .RE
 .TP
-.BI "--preview-window=" "[POSITION][:SIZE[%]][:noborder][:wrap][:hidden][:+SCROLL[-OFFSET]]"
+.BI "--preview-window=" "[POSITION][:SIZE[%]][:rounded|sharp|noborder][:wrap][:hidden][:+SCROLL[-OFFSET]]"
 Determines the layout of the preview window. If the argument contains
 \fB:hidden\fR, the preview window will be hidden by default until
 \fBtoggle-preview\fR action is triggered. Long lines are truncated by default.
@@ -390,11 +390,16 @@ Line wrap can be enabled with \fB:wrap\fR flag.
 If size is given as 0, preview window will not be visible, but fzf will still
 execute the command in the background.
 
+To change the style of the border of the preview window, specify one of
+\fBrounded\fR (border with rounded edges, default), \fBsharp\fR (border with
+sharp edges), or \fBnoborder\fR (no border).
+
 \fB+SCROLL[-OFFSET]\fR determines the initial scroll offset of the preview
 window. \fBSCROLL\fR can be either a numeric integer or a single-field index
 expression that refers to a numeric integer. The optional \fB-OFFSET\fR part is
 for adjusting the base offset so that you can see the text above it. It should
-be given as a numeric integer.
+be given as a numeric integer (\fB-INTEGER\fR), or as a denominator form
+(\fB-/INTEGER\fR) for specifying a fraction of the preview window height.
 
 .RS
 .B POSITION: (default: right)
@@ -411,9 +416,15 @@ e.g.
      fzf --preview="file {}" --preview-window=down:1
 
      # Initial scroll offset is set to the line number of each line of
-     # git grep output *minus* 5 lines
+     # git grep output *minus* 5 lines (-5)
      git grep --line-number '' |
-       fzf --delimiter : --preview 'nl {1}' --preview-window +{2}-5\fR
+       fzf --delimiter : --preview 'nl {1}' --preview-window +{2}-5
+
+     # Preview with bat, matching line in the middle of the window (-/2)
+     git grep --line-number '' |
+       fzf --delimiter : \\
+           --preview 'bat --style=numbers --color=always --highlight-line {2} {1}' \\
+           --preview-window +{2}-/2\fR
 
 .RE
 .SS Scripting
@@ -690,7 +701,6 @@ A key or an event can be bound to one or more of the following actions.
     \fBend-of-line\fR               \fIctrl-e  end\fR
     \fBexecute(...)\fR              (see below for the details)
     \fBexecute-silent(...)\fR       (see below for the details)
-    \fRexecute-multi(...)\fR        (deprecated in favor of \fB{+}\fR expression)
     \fBforward-char\fR              \fIctrl-f  right\fR
     \fBforward-word\fR              \fIalt-f   shift-right\fR
     \fBignore\fR
@@ -708,6 +718,8 @@ A key or an event can be bound to one or more of the following actions.
     \fBpreview-up\fR                \fIshift-up\fR
     \fBpreview-page-down\fR
     \fBpreview-page-up\fR
+    \fBpreview-half-page-down\fR
+    \fBpreview-half-page-up\fR
     \fBprevious-history\fR          (\fIctrl-p\fR on \fB--history\fR)
     \fBprint-query\fR               (print query and exit)
     \fBrefresh-preview\fR

plugin/fzf.vim

@@ -115,7 +115,6 @@ function! s:fzf_tempname()
   return s:fzf_call('tempname')
 endfunction
 
-let s:default_layout = { 'down': '~40%' }
 let s:layout_keys = ['window', 'tmux', 'up', 'down', 'left', 'right']
 let s:fzf_go = s:base_dir.'/bin/fzf'
 let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'
@@ -123,6 +122,16 @@ let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'
 let s:cpo_save = &cpo
 set cpo&vim
 
+function! s:popup_support()
+  return has('nvim') ? has('nvim-0.4') : has('popupwin') && has('patch-8.2.191')
+endfunction
+
+function! s:default_layout()
+  return s:popup_support()
+        \ ? { 'window' : { 'width': 0.9, 'height': 0.6, 'highlight': 'Normal' } }
+        \ : { 'down': '~40%' }
+endfunction
+
 function! fzf#install()
   if s:is_win && !has('win32unix')
     let script = s:base_dir.'/install.ps1'
@@ -145,7 +154,7 @@ function! fzf#install()
   endif
 endfunction
 
-function! s:fzf_exec()
+function! fzf#exec()
   if !exists('s:exec')
     if executable(s:fzf_go)
       let s:exec = s:fzf_go
@@ -154,13 +163,13 @@ function! s:fzf_exec()
     elseif input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
       redraw
       call fzf#install()
-      return s:fzf_exec()
+      return fzf#exec()
     else
       redraw
       throw 'fzf executable not found'
     endif
   endif
-  return fzf#shellescape(s:exec)
+  return s:exec
 endfunction
 
 function! s:tmux_enabled()
@@ -325,7 +334,7 @@ function! fzf#wrap(...)
     if !exists('g:fzf_layout') && exists('g:fzf_height')
       let opts.down = g:fzf_height
     else
-      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout)))
+      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout())))
     endif
   endif
 
@@ -376,7 +385,7 @@ try
   let temps  = { 'result': s:fzf_tempname() }
   let optstr = s:evaluate_opts(get(dict, 'options', ''))
   try
-    let fzf_exec = s:fzf_exec()
+    let fzf_exec = fzf#shellescape(fzf#exec())
   catch
     throw v:exception
   endtry
@@ -658,7 +667,7 @@ function! s:split(dict)
   try
     if s:present(a:dict, 'window')
       if type(a:dict.window) == type({})
-        if !(has('nvim') ? has('nvim-0.4') : has('popupwin') && has('patch-8.2.191'))
+        if !s:popup_support()
           throw 'Nvim 0.4+ or Vim 8.2.191+ with popupwin feature is required for pop-up window'
         end
         call s:popup(a:dict.window)
@@ -864,9 +873,9 @@ function! s:popup(opts) abort
   let ambidouble = &ambiwidth == 'double' ? 2 : 1
 
   " Size and position
-  let width = min([max([0, float2nr(&columns * a:opts.width)]), &columns])
+  let width = min([max([8, a:opts.width > 1 ? a:opts.width : float2nr(&columns * a:opts.width)]), &columns])
   let width += width % ambidouble
-  let height = min([max([0, float2nr(&lines * a:opts.height)]), &lines - has('nvim')])
+  let height = min([max([4, a:opts.height > 1 ? a:opts.height : float2nr(&lines * a:opts.height)]), &lines - has('nvim')])
   let row = float2nr(get(a:opts, 'yoffset', 0.5) * (&lines - height))
   let col = float2nr(get(a:opts, 'xoffset', 0.5) * (&columns - width))
 

shell/completion.bash

@@ -272,7 +272,7 @@ _fzf_proc_completion_post() {
 
 _fzf_host_completion() {
   _fzf_complete +m -- "$@" < <(
-    cat <(cat ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
+    command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
         <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
         <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u

shell/completion.zsh

@@ -225,7 +225,7 @@ _fzf_complete_telnet() {
 _fzf_complete_ssh() {
   _fzf_complete +m -- "$@" < <(
     setopt localoptions nonomatch
-    command cat <(cat ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
+    command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
         <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
         <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u

shell/key-bindings.zsh

@@ -87,9 +87,15 @@ fzf-cd-widget() {
     zle redisplay
     return 0
   fi
-  cd "$dir"
-  unset dir # ensure this doesn't end up appearing in prompt expansion
+  if [ -z "$BUFFER" ]; then
+    BUFFER="cd ${(q)dir}"
+    zle accept-line
+  else
+    print -sr "cd ${(q)dir}"
+    cd "$dir"
+  fi
   local ret=$?
+  unset dir # ensure this doesn't end up appearing in prompt expansion
   zle fzf-redraw-prompt
   return $ret
 }
@@ -100,7 +106,7 @@ bindkey '\ec' fzf-cd-widget
 fzf-history-widget() {
   local selected num
   setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
-  selected=( $(fc -rl 1 | perl -ne 'print if !$seen{(/^\s*[0-9]+\s+(.*)/, $1)}++' |
+  selected=( $(fc -rl 1 | perl -ne 'print if !$seen{(/^\s*[0-9]+\**\s+(.*)/, $1)}++' |
     FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
   local ret=$?
   if [ -n "$selected" ]; then

src/constants.go

@@ -10,7 +10,7 @@ import (
 
 const (
 	// Current version
-	version = "0.22.0"
+	version = "0.23.0"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond

src/options.go

@@ -80,7 +80,9 @@ const usage = `usage: fzf [options]
   Preview
     --preview=COMMAND     Command to preview highlighted line ({})
     --preview-window=OPT  Preview window layout (default: right:50%)
-                          [up|down|left|right][:SIZE[%]][:wrap][:hidden][:+SCROLL[-OFFSET]]
+                          [up|down|left|right][:SIZE[%]][:wrap][:cycle][:hidden]
+                          [:+SCROLL[-OFFSET]]
+                          [:rounded|sharp|noborder]
 
   Scripting
     -q, --query=STR       Start the finder with the given query
@@ -162,7 +164,8 @@ type previewOpts struct {
 	scroll   string
 	hidden   bool
 	wrap     bool
-	border   bool
+	cycle    bool
+	border   tui.BorderShape
 }
 
 // Options stores the values of command-line options
@@ -261,7 +264,7 @@ func defaultOptions() *Options {
 		ToggleSort:  false,
 		Expect:      make(map[int]string),
 		Keymap:      make(map[int][]action),
-		Preview:     previewOpts{"", posRight, sizeSpec{50, true}, "", false, false, true},
+		Preview:     previewOpts{"", posRight, sizeSpec{50, true}, "", false, false, false, tui.BorderRounded},
 		PrintQuery:  false,
 		ReadZero:    false,
 		Printer:     func(str string) { fmt.Println(str) },
@@ -853,6 +856,10 @@ func parseKeymap(keymap map[int][]action, str string) {
 				appendAction(actPreviewPageUp)
 			case "preview-page-down":
 				appendAction(actPreviewPageDown)
+			case "preview-half-page-up":
+				appendAction(actPreviewHalfPageUp)
+			case "preview-half-page-down":
+				appendAction(actPreviewHalfPageDown)
 			default:
 				t := isExecuteAction(specLower)
 				if t == actIgnore {
@@ -987,15 +994,9 @@ func parseInfoStyle(str string) infoStyle {
 }
 
 func parsePreviewWindow(opts *previewOpts, input string) {
-	// Default
-	opts.position = posRight
-	opts.size = sizeSpec{50, true}
-	opts.hidden = false
-	opts.wrap = false
-
 	tokens := strings.Split(input, ":")
 	sizeRegex := regexp.MustCompile("^[0-9]+%?$")
-	offsetRegex := regexp.MustCompile("^\\+([0-9]+|{-?[0-9]+})(-[0-9]+)?$")
+	offsetRegex := regexp.MustCompile("^\\+([0-9]+|{-?[0-9]+})(-[0-9]+|-/[1-9][0-9]*)?$")
 	for _, token := range tokens {
 		switch token {
 		case "":
@@ -1003,6 +1004,8 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 			opts.hidden = true
 		case "wrap":
 			opts.wrap = true
+		case "cycle":
+			opts.cycle = true
 		case "up", "top":
 			opts.position = posUp
 		case "down", "bottom":
@@ -1011,10 +1014,12 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 			opts.position = posLeft
 		case "right":
 			opts.position = posRight
-		case "border":
-			opts.border = true
+		case "rounded", "border":
+			opts.border = tui.BorderRounded
+		case "sharp":
+			opts.border = tui.BorderSharp
 		case "noborder":
-			opts.border = false
+			opts.border = tui.BorderNone
 		default:
 			if sizeRegex.MatchString(token) {
 				opts.size = parseSize(token, 99, "window size")
@@ -1025,14 +1030,6 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 			}
 		}
 	}
-	if !opts.size.percent && opts.size.size > 0 {
-		// Adjust size for border
-		opts.size.size += 2
-		// And padding
-		if opts.position == posLeft || opts.position == posRight {
-			opts.size.size += 2
-		}
-	}
 }
 
 func parseMargin(margin string) [4]sizeSpec {
@@ -1274,7 +1271,7 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Preview.command = ""
 		case "--preview-window":
 			parsePreviewWindow(&opts.Preview,
-				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]][:noborder][:wrap][:hidden][:+SCROLL[-OFFSET]]"))
+				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]][:rounded|sharp|noborder][:wrap][:cycle][:hidden][:+SCROLL[-OFFSET]]"))
 		case "--height":
 			opts.Height = parseHeight(nextString(allArgs, &i, "height required: HEIGHT[%]"))
 		case "--min-height":

src/options_test.go

@@ -393,17 +393,18 @@ func TestPreviewOpts(t *testing.T) {
 		opts.Preview.wrap == true &&
 		opts.Preview.position == posLeft &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2+2) {
+		opts.Preview.size.size == 15) {
 		t.Error(opts.Preview)
 	}
-	opts = optsFor("--preview-window=up:15:wrap:hidden", "--preview-window=down")
+	opts = optsFor("--preview-window=up:15:wrap:hidden", "--preview-window=down", "--preview-window=cycle")
 	if !(opts.Preview.command == "" &&
-		opts.Preview.hidden == false &&
-		opts.Preview.wrap == false &&
+		opts.Preview.hidden == true &&
+		opts.Preview.wrap == true &&
+		opts.Preview.cycle == true &&
 		opts.Preview.position == posDown &&
-		opts.Preview.size.percent == true &&
-		opts.Preview.size.size == 50) {
-		t.Error(opts.Preview)
+		opts.Preview.size.percent == false &&
+		opts.Preview.size.size == 15) {
+		t.Error(opts.Preview.size.size)
 	}
 	opts = optsFor("--preview-window=up:15:wrap:hidden")
 	if !(opts.Preview.command == "" &&
@@ -411,7 +412,7 @@ func TestPreviewOpts(t *testing.T) {
 		opts.Preview.wrap == true &&
 		opts.Preview.position == posUp &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2) {
+		opts.Preview.size.size == 15) {
 		t.Error(opts.Preview)
 	}
 }

src/terminal.go

@@ -236,6 +236,8 @@ const (
 	actPreviewDown
 	actPreviewPageUp
 	actPreviewPageDown
+	actPreviewHalfPageUp
+	actPreviewHalfPageDown
 	actPreviousHistory
 	actNextHistory
 	actExecute
@@ -612,12 +614,12 @@ const (
 	maxDisplayWidthCalc = 1024
 )
 
-func calculateSize(base int, size sizeSpec, margin int, minSize int) int {
-	max := base - margin
+func calculateSize(base int, size sizeSpec, occupied int, minSize int, pad int) int {
+	max := base - occupied
 	if size.percent {
 		return util.Constrain(int(float64(base)*0.01*size.size), minSize, max)
 	}
-	return util.Constrain(int(size.size), minSize, max)
+	return util.Constrain(int(size.size)+pad, minSize, max)
 }
 
 func (t *Terminal) resizeWindows() {
@@ -676,6 +678,8 @@ func (t *Terminal) resizeWindows() {
 	}
 	if t.pborder != nil {
 		t.pborder.Close()
+	}
+	if t.pwindow != nil {
 		t.pwindow.Close()
 	}
 
@@ -700,38 +704,51 @@ func (t *Terminal) resizeWindows() {
 	noBorder := tui.MakeBorderStyle(tui.BorderNone, t.unicode)
 	if previewVisible {
 		createPreviewWindow := func(y int, x int, w int, h int) {
-			previewBorder := tui.MakeBorderStyle(tui.BorderRounded, t.unicode)
-			if !t.preview.border {
-				previewBorder = tui.MakeTransparentBorder()
+			pwidth := w
+			pheight := h
+			if t.preview.border != tui.BorderNone {
+				previewBorder := tui.MakeBorderStyle(t.preview.border, t.unicode)
+				t.pborder = t.tui.NewWindow(y, x, w, h, true, previewBorder)
+				pwidth -= 4
+				pheight -= 2
+				x += 2
+				y += 1
+			} else {
+				previewBorder := tui.MakeTransparentBorder()
+				t.pborder = t.tui.NewWindow(y, x, w, h, true, previewBorder)
+				pwidth -= 4
+				x += 2
 			}
-			t.pborder = t.tui.NewWindow(y, x, w, h, true, previewBorder)
-			pwidth := w - 4
 			// ncurses auto-wraps the line when the cursor reaches the right-end of
 			// the window. To prevent unintended line-wraps, we use the width one
 			// column larger than the desired value.
 			if !t.preview.wrap && t.tui.DoesAutoWrap() {
 				pwidth += 1
 			}
-			t.pwindow = t.tui.NewWindow(y+1, x+2, pwidth, h-2, true, noBorder)
+			t.pwindow = t.tui.NewWindow(y, x, pwidth, pheight, true, noBorder)
+		}
+		verticalPad := 2
+		if t.preview.border == tui.BorderNone {
+			verticalPad = 0
 		}
 		switch t.preview.position {
 		case posUp:
-			pheight := calculateSize(height, t.preview.size, minHeight, 3)
+			pheight := calculateSize(height, t.preview.size, minHeight, 3, verticalPad)
 			t.window = t.tui.NewWindow(
 				marginInt[0]+pheight, marginInt[3], width, height-pheight, false, noBorder)
 			createPreviewWindow(marginInt[0], marginInt[3], width, pheight)
 		case posDown:
-			pheight := calculateSize(height, t.preview.size, minHeight, 3)
+			pheight := calculateSize(height, t.preview.size, minHeight, 3, verticalPad)
 			t.window = t.tui.NewWindow(
 				marginInt[0], marginInt[3], width, height-pheight, false, noBorder)
 			createPreviewWindow(marginInt[0]+height-pheight, marginInt[3], width, pheight)
 		case posLeft:
-			pwidth := calculateSize(width, t.preview.size, minWidth, 5)
+			pwidth := calculateSize(width, t.preview.size, minWidth, 5, 4)
 			t.window = t.tui.NewWindow(
 				marginInt[0], marginInt[3]+pwidth, width-pwidth, height, false, noBorder)
 			createPreviewWindow(marginInt[0], marginInt[3], pwidth, height)
 		case posRight:
-			pwidth := calculateSize(width, t.preview.size, minWidth, 5)
+			pwidth := calculateSize(width, t.preview.size, minWidth, 5, 4)
 			t.window = t.tui.NewWindow(
 				marginInt[0], marginInt[3], width-pwidth, height, false, noBorder)
 			createPreviewWindow(marginInt[0], marginInt[3]+width-pwidth, pwidth, height)
@@ -1037,7 +1054,7 @@ func (t *Terminal) printHighlighted(result Result, attr tui.Attr, col1 tui.Color
 	}
 
 	offsets := result.colorOffsets(charOffsets, t.theme, col2, attr, current)
-	maxWidth := t.window.Width() - 3
+	maxWidth := t.window.Width() - (t.pointerLen + t.markerLen + 1)
 	maxe = util.Constrain(maxe+util.Min(maxWidth/2-2, t.hscrollOff), 0, len(text))
 	displayWidth := t.displayWidthWithLimit(text, 0, maxWidth)
 	if displayWidth > maxWidth {
@@ -1210,7 +1227,10 @@ func (t *Terminal) refresh() {
 			windows = append(windows, t.border)
 		}
 		if t.hasPreviewWindow() {
-			windows = append(windows, t.pborder, t.pwindow)
+			if t.pborder != nil {
+				windows = append(windows, t.pborder)
+			}
+			windows = append(windows, t.pwindow)
 		}
 		windows = append(windows, t.window)
 		t.tui.RefreshWindows(windows)
@@ -1374,7 +1394,7 @@ func atopi(s string) int {
 	return n
 }
 
-func (t *Terminal) evaluateScrollOffset(list []*Item) int {
+func (t *Terminal) evaluateScrollOffset(list []*Item, height int) int {
 	offsetExpr := t.replacePlaceholder(t.preview.scroll, false, "", list)
 	nums := strings.Split(offsetExpr, "-")
 	switch len(nums) {
@@ -1387,6 +1407,13 @@ func (t *Terminal) evaluateScrollOffset(list []*Item) int {
 		} else if len(nums) == 1 {
 			return base - 1
 		}
+		if nums[1][0] == '/' {
+			denom := atopi(nums[1][1:])
+			if denom == 0 {
+				return base
+			}
+			return base - height/denom
+		}
 		return base - atopi(nums[1]) - 1
 	default:
 		return 0
@@ -1532,8 +1559,8 @@ func (t *Terminal) currentItem() *Item {
 
 func (t *Terminal) buildPlusList(template string, forcePlus bool) (bool, []*Item) {
 	current := t.currentItem()
-	_, plus, query := hasPreviewFlags(template)
-	if !(query && len(t.input) > 0 || (forcePlus || plus) && len(t.selected) > 0) {
+	slot, plus, query := hasPreviewFlags(template)
+	if !(!slot || query && len(t.input) > 0 || (forcePlus || plus) && len(t.selected) > 0) {
 		return current != nil, []*Item{current, current}
 	}
 
@@ -1676,11 +1703,13 @@ func (t *Terminal) Loop() {
 				// We don't display preview window if no match
 				if items[0] != nil {
 					command := t.replacePlaceholder(commandTemplate, false, string(t.Input()), items)
-					offset := t.evaluateScrollOffset(items)
+					offset := 0
 					cmd := util.ExecCommand(command, true)
 					if t.pwindow != nil {
+						height := t.pwindow.Height()
+						offset = t.evaluateScrollOffset(items, height)
 						env := os.Environ()
-						lines := fmt.Sprintf("LINES=%d", t.pwindow.Height())
+						lines := fmt.Sprintf("LINES=%d", height)
 						columns := fmt.Sprintf("COLUMNS=%d", t.pwindow.Width())
 						env = append(env, lines)
 						env = append(env, "FZF_PREVIEW_"+lines)
@@ -1859,8 +1888,11 @@ func (t *Terminal) Loop() {
 			if !t.previewer.more {
 				return
 			}
-			newOffset := util.Constrain(
-				t.previewer.offset+amount, 0, t.previewer.lines-1)
+			newOffset := t.previewer.offset + amount
+			if t.preview.cycle {
+				newOffset = (newOffset + t.previewer.lines) % t.previewer.lines
+			}
+			newOffset = util.Constrain(newOffset, 0, t.previewer.lines-1)
 			if t.previewer.offset != newOffset {
 				t.previewer.offset = newOffset
 				req(reqPreviewRefresh)
@@ -1930,6 +1962,14 @@ func (t *Terminal) Loop() {
 				if t.hasPreviewWindow() {
 					scrollPreview(t.pwindow.Height())
 				}
+			case actPreviewHalfPageUp:
+				if t.hasPreviewWindow() {
+					scrollPreview(-t.pwindow.Height() / 2)
+				}
+			case actPreviewHalfPageDown:
+				if t.hasPreviewWindow() {
+					scrollPreview(t.pwindow.Height() / 2)
+				}
 			case actBeginningOfLine:
 				t.cx = 0
 			case actBackwardChar:

src/tui/light.go

@@ -3,7 +3,6 @@ package tui
 import (
 	"fmt"
 	"os"
-	"os/exec"
 	"regexp"
 	"strconv"
 	"strings"
@@ -126,17 +125,6 @@ func NewLightRenderer(theme *ColorTheme, forceBlack bool, mouse bool, tabstop in
 	return &r
 }
 
-func (r *LightRenderer) defaultTheme() *ColorTheme {
-	if strings.Contains(os.Getenv("TERM"), "256") {
-		return Dark256
-	}
-	colors, err := exec.Command("tput", "colors").Output()
-	if err == nil && atoi(strings.TrimSpace(string(colors)), 16) > 16 {
-		return Dark256
-	}
-	return Default16
-}
-
 func repeat(r rune, times int) string {
 	if times > 0 {
 		return strings.Repeat(string(r), times)

src/tui/light_unix.go

@@ -5,6 +5,8 @@ package tui
 import (
 	"fmt"
 	"os"
+	"os/exec"
+	"strings"
 	"syscall"
 
 	"github.com/junegunn/fzf/src/util"
@@ -15,6 +17,17 @@ func IsLightRendererSupported() bool {
 	return true
 }
 
+func (r *LightRenderer) defaultTheme() *ColorTheme {
+	if strings.Contains(os.Getenv("TERM"), "256") {
+		return Dark256
+	}
+	colors, err := exec.Command("tput", "colors").Output()
+	if err == nil && atoi(strings.TrimSpace(string(colors)), 16) > 16 {
+		return Dark256
+	}
+	return Default16
+}
+
 func (r *LightRenderer) fd() int {
 	return int(r.ttyin.Fd())
 }

src/tui/light_windows.go

@@ -34,6 +34,14 @@ func IsLightRendererSupported() bool {
 	return canSetVt100
 }
 
+func (r *LightRenderer) defaultTheme() *ColorTheme {
+	// the getenv check is borrowed from here: https://github.com/gdamore/tcell/commit/0c473b86d82f68226a142e96cc5a34c5a29b3690#diff-b008fcd5e6934bf31bc3d33bf49f47d8R178:
+	if !IsLightRendererSupported() || os.Getenv("ConEmuPID") != "" || os.Getenv("TCELL_TRUECOLOR") == "disable" {
+		return Default16
+	}
+	return Dark256
+}
+
 func (r *LightRenderer) initPlatform() error {
 	//outHandle := windows.Stdout
 	outHandle, _ := syscall.Open("CONOUT$", syscall.O_RDWR, 0)