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No commits in common. "master" and "v0.4.1" have entirely different histories.

33 changed files with 561 additions and 6739 deletions

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version: 2
updates:
- package-ecosystem: "gomod"
directory: "/"
schedule:
interval: "daily"
time: "08:00"
labels:
- "dependencies"
commit-message:
prefix: "feat"
include: "scope"
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "daily"
time: "08:00"
labels:
- "dependencies"
commit-message:
prefix: "chore"
include: "scope"

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@ -1,28 +0,0 @@
name: build
on: [push, pull_request]
jobs:
test:
strategy:
matrix:
go-version: [~1.13, ^1]
os: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.os }}
env:
GO111MODULE: "on"
steps:
- name: Install Go
uses: actions/setup-go@v3
with:
go-version: ${{ matrix.go-version }}
- name: Checkout code
uses: actions/checkout@v3
- name: Download Go modules
run: go mod download
- name: Build
run: go build -v ./...
- name: Test
run: go test ./...

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@ -1,28 +0,0 @@
name: coverage
on: [push, pull_request]
jobs:
coverage:
strategy:
matrix:
go-version: [^1]
os: [ubuntu-latest]
runs-on: ${{ matrix.os }}
env:
GO111MODULE: "on"
steps:
- name: Install Go
uses: actions/setup-go@v3
with:
go-version: ${{ matrix.go-version }}
- name: Checkout code
uses: actions/checkout@v3
- name: Coverage
env:
COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
go test -race -covermode atomic -coverprofile=profile.cov ./...
GO111MODULE=off go get github.com/mattn/goveralls
$(go env GOPATH)/bin/goveralls -coverprofile=profile.cov -service=github

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name: lint-soft
on:
push:
pull_request:
permissions:
contents: read
# Optional: allow read access to pull request. Use with `only-new-issues` option.
pull-requests: read
jobs:
golangci:
name: lint-soft
runs-on: ubuntu-latest
steps:
- name: Install Go
uses: actions/setup-go@v3
with:
go-version: ^1
- uses: actions/checkout@v3
- name: golangci-lint
uses: golangci/golangci-lint-action@v3
with:
# Optional: golangci-lint command line arguments.
args: --config .golangci-soft.yml --issues-exit-code=0
# Optional: show only new issues if it's a pull request. The default value is `false`.
only-new-issues: true

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@ -1,28 +0,0 @@
name: lint
on:
push:
pull_request:
permissions:
contents: read
# Optional: allow read access to pull request. Use with `only-new-issues` option.
pull-requests: read
jobs:
golangci:
name: lint
runs-on: ubuntu-latest
steps:
- name: Install Go
uses: actions/setup-go@v3
with:
go-version: ^1
- uses: actions/checkout@v3
- name: golangci-lint
uses: golangci/golangci-lint-action@v3
with:
# Optional: golangci-lint command line arguments.
#args:
# Optional: show only new issues if it's a pull request. The default value is `false`.
only-new-issues: true

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@ -1,12 +0,0 @@
name: soft-serve
on:
push:
branches:
- master
jobs:
soft-serve:
uses: charmbracelet/meta/.github/workflows/soft-serve.yml@main
secrets:
ssh-key: "${{ secrets.CHARM_SOFT_SERVE_KEY }}"

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@ -1,47 +0,0 @@
run:
tests: false
issues:
include:
- EXC0001
- EXC0005
- EXC0011
- EXC0012
- EXC0013
max-issues-per-linter: 0
max-same-issues: 0
linters:
enable:
# - dupl
- exhaustive
# - exhaustivestruct
- goconst
- godot
- godox
- gomnd
- gomoddirectives
- goprintffuncname
- ifshort
# - lll
- misspell
- nakedret
- nestif
- noctx
- nolintlint
- prealloc
- wrapcheck
# disable default linters, they are already enabled in .golangci.yml
disable:
- deadcode
- errcheck
- gosimple
- govet
- ineffassign
- staticcheck
- structcheck
- typecheck
- unused
- varcheck

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@ -1,29 +0,0 @@
run:
tests: false
issues:
include:
- EXC0001
- EXC0005
- EXC0011
- EXC0012
- EXC0013
max-issues-per-linter: 0
max-same-issues: 0
linters:
enable:
- bodyclose
- exportloopref
- goimports
- gosec
- nilerr
- predeclared
- revive
- rowserrcheck
- sqlclosecheck
- tparallel
- unconvert
- unparam
- whitespace

234
README.md
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@ -1,238 +1,34 @@
Bubbles
=======
# Bubbles
<p>
<img src="https://stuff.charm.sh/bubbles/bubbles-github.png" width="233" alt="The Bubbles Logo">
</p>
[![Latest Release](https://img.shields.io/github/release/charmbracelet/bubbles.svg)](https://github.com/charmbracelet/bubbles/releases)
[![GoDoc](https://godoc.org/github.com/golang/gddo?status.svg)](https://pkg.go.dev/github.com/charmbracelet/bubbles)
[![Build Status](https://github.com/charmbracelet/bubbles/workflows/build/badge.svg)](https://github.com/charmbracelet/bubbles/actions)
[![Go ReportCard](https://goreportcard.com/badge/charmbracelet/bubbles)](https://goreportcard.com/report/charmbracelet/bubbles)
Some components for [Bubble Tea](https://github.com/charmbracelet/bubbletea)
applications. These components are used in production in [Glow][glow],
[Charm][charm] and [many other applications][otherstuff].
[glow]: https://github.com/charmbracelet/glow
[charm]: https://github.com/charmbracelet/charm
[otherstuff]: https://github.com/charmbracelet/bubbletea/#bubble-tea-in-the-wild
Some components for [Bubble Tea](https://github.com/charmbraclet/bubbletea):
* Spinner
* Text Input
* Paginator
* Viewport
## Spinner
<img src="https://stuff.charm.sh/bubbles-examples/spinner.gif" width="400" alt="Spinner Example">
A spinner, useful for indicating that some kind an operation is happening.
There are a couple default ones, but you can also pass your own ”frames.”
* [Example code, basic spinner](https://github.com/charmbracelet/bubbletea/tree/master/examples/spinner/main.go)
* [Example code, various spinners](https://github.com/charmbracelet/bubbletea/tree/master/examples/spinners/main.go)
A spinner, useful for indicating that some kind of invisible operation is
happening. There are a couple default ones, but you can also pass your own
”frames.”
## Text Input
<img src="https://stuff.charm.sh/bubbles-examples/textinput.gif" width="400" alt="Text Input Example">
A text input field, akin to an `<input type="text">` in HTML. Supports unicode,
pasting, in-place scrolling when the value exceeds the width of the element and
the common, and many customization options.
* [Example code, one field](https://github.com/charmbracelet/bubbletea/tree/master/examples/textinput/main.go)
* [Example code, many fields](https://github.com/charmbracelet/bubbletea/tree/master/examples/textinputs/main.go)
## Text Area
<img src="https://stuff.charm.sh/bubbles-examples/textarea.gif" width="400" alt="Text Area Example">
A text area field, akin to an `<textarea />` in HTML. Allows for input that
spans multiple lines. Supports unicode, pasting, vertical scrolling when the
value exceeds the width and height of the element, and many customization
options.
* [Example code, chat input](https://github.com/charmbracelet/bubbletea/tree/master/examples/chat/main.go)
* [Example code, story time input](https://github.com/charmbracelet/bubbletea/tree/master/examples/textarea/main.go)
## Table
<img src="https://stuff.charm.sh/bubbles-examples/table.gif" width="400" alt="Table Example">
A component for displaying and navigating tabular data (columns and rows).
Supports vertical scrolling and many customization options.
* [Example code, countries and populations](https://github.com/charmbracelet/bubbletea/tree/master/examples/table/main.go)
## Progress
<img src="https://stuff.charm.sh/bubbles-examples/progress.gif" width="800" alt="Progressbar Example">
A simple, customizable progress meter, with optional animation via
[Harmonica][harmonica]. Supports solid and gradient fills. The empty and filled
runes can be set to whatever you'd like. The percentage readout is customizable
and can also be omitted entirely.
* [Animated example](https://github.com/charmbracelet/bubbletea/blob/master/examples/progress-animated/main.go)
* [Static example](https://github.com/charmbracelet/bubbletea/blob/master/examples/progress-static/main.go)
[harmonica]: https://github.com/charmbracelet/harmonica
A text input field, akin to an `<input type="text">` in HTML.
## Paginator
<img src="https://stuff.charm.sh/bubbles-examples/pagination.gif" width="200" alt="Paginator Example">
A component for handling pagination logic and optionally drawing pagination UI.
Supports "dot-style" pagination (similar to what you might see on iOS) and
numeric page numbering, but you could also just use this component for the
logic and visualize pagination however you like.
* [Example code](https://github.com/charmbracelet/bubbletea/blob/master/examples/paginator/main.go)
## Viewport
<img src="https://stuff.charm.sh/bubbles-examples/viewport.gif" width="600" alt="Viewport Example">
A viewport for vertically scrolling content. Optionally includes standard
A viewport for vertically scrolling content which optionally includes standard
pager keybindings and mouse wheel support. A high performance mode is available
for applications which make use of the alternate screen buffer.
* [Example code](https://github.com/charmbracelet/bubbletea/tree/master/examples/pager/main.go)
This component is well complemented with [Reflow][reflow] for ANSI-aware
indenting and text wrapping.
[reflow]: https://github.com/muesli/reflow
## List
<img src="https://stuff.charm.sh/bubbles-examples/list.gif" width="600" alt="List Example">
A customizable, batteries-included component for browsing a set of items.
Features pagination, fuzzy filtering, auto-generated help, an activity spinner,
and status messages, all of which can be enabled and disabled as needed.
Extrapolated from [Glow][glow].
* [Example code, default list](https://github.com/charmbracelet/bubbletea/tree/master/examples/list-default/main.go)
* [Example code, simple list](https://github.com/charmbracelet/bubbletea/tree/master/examples/list-simple/main.go)
* [Example code, all features](https://github.com/charmbracelet/bubbletea/tree/master/examples/list-fancy/main.go)
## Timer
A simple, flexible component for counting down. The update frequency and output
can be customized as you like.
<img src="https://stuff.charm.sh/bubbles-examples/timer.gif" width="400" alt="Timer example">
* [Example code](https://github.com/charmbracelet/bubbletea/blob/master/examples/timer/main.go)
## Stopwatch
<img src="https://stuff.charm.sh/bubbles-examples/stopwatch.gif" width="400" alt="Stopwatch example">
A simple, flexible component for counting up. The update frequency and output
can be customized as you see fit.
* [Example code](https://github.com/charmbracelet/bubbletea/blob/master/examples/stopwatch/main.go)
## Help
<img src="https://stuff.charm.sh/bubbles-examples/help.gif" width="500" alt="Help Example">
A customizable horizontal mini help view that automatically generates itself
from your keybindings. It features single and multi-line modes, which the user
can optionally toggle between. It will truncate gracefully if the terminal is
too wide for the content.
* [Example code](https://github.com/charmbracelet/bubbletea/blob/master/examples/help/main.go)
## Key
A non-visual component for managing keybindings. Its useful for allowing users
to remap keybindings as well as generating help views corresponding to your
keybindings.
```go
type KeyMap struct {
Up key.Binding
Down key.Binding
}
var DefaultKeyMap = KeyMap{
Up: key.NewBinding(
key.WithKeys("k", "up"), // actual keybindings
key.WithHelp("↑/k", "move up"), // corresponding help text
),
Down: key.NewBinding(
key.WithKeys("j", "down"),
key.WithHelp("↓/j", "move down"),
),
}
func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch {
case key.Matches(msg, DefaultKeyMap.Up):
// The user pressed up
case key.Matches(msg, DefaultKeyMap.Down):
// The user pressed down
}
}
return m, nil
}
```
## Additional Bubbles
<!-- in alphabetical order by author -->
* [76creates/stickers](https://github.com/76creates/stickers): Responsive
flexbox and table components.
* [calyptia/go-bubble-table](https://github.com/calyptia/go-bubble-table): An
interactive, customizable, scrollable table component.
* [erikgeiser/promptkit](https://github.com/erikgeiser/promptkit): A collection
of common prompts for cases like selection, text input, and confirmation.
Each prompt comes with sensible defaults, remappable keybindings, any many
customization options.
* [evertras/bubble-table](https://github.com/Evertras/bubble-table): Interactive,
customizable, paginated tables.
* [knipferrc/teacup](https://github.com/knipferrc/teacup): Various handy
bubbles and utilities for building Bubble Tea applications.
* [mritd/bubbles](https://github.com/mritd/bubbles): Some general-purpose
bubbles. Inputs with validation, menu selection, a modified progressbar, and
so on.
* [treilik/bubbleboxer](https://github.com/treilik/bubbleboxer): Layout
multiple bubbles side-by-side in a layout-tree.
* [treilik/bubblelister](https://github.com/treilik/bubblelister): An alternate
list that is scrollable without pagination and has the ability to contain
other bubbles as list items.
If youve built a Bubble you think should be listed here,
[let us know](mailto:vt100@charm.sh).
## Feedback
Wed love to hear your thoughts on this project. Feel free to drop us a note!
* [Twitter](https://twitter.com/charmcli)
* [The Fediverse](https://mastodon.social/@charmcli)
* [Discord](https://charm.sh/chat)
for applications which make use of the alterate screen buffer. This is
generally only necessary when dealing with content with a very large amount of
ANSI escape sequences.
## License
[MIT](https://github.com/charmbracelet/bubbletea/raw/master/LICENSE)
***
Part of [Charm](https://charm.sh).
<a href="https://charm.sh/"><img alt="The Charm logo" src="https://stuff.charm.sh/charm-badge.jpg" width="400"></a>
Charm热爱开源 • Charm loves open source
[MIT](https://github.com/charmbracelet/teaparty/raw/master/LICENSE)

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@ -1,207 +0,0 @@
package cursor
import (
"context"
"time"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
const defaultBlinkSpeed = time.Millisecond * 530
// initialBlinkMsg initializes cursor blinking.
type initialBlinkMsg struct{}
// BlinkMsg signals that the cursor should blink. It contains metadata that
// allows us to tell if the blink message is the one we're expecting.
type BlinkMsg struct {
id int
tag int
}
// blinkCanceled is sent when a blink operation is canceled.
type blinkCanceled struct{}
// blinkCtx manages cursor blinking.
type blinkCtx struct {
ctx context.Context
cancel context.CancelFunc
}
// Mode describes the behavior of the cursor.
type Mode int
// Available cursor modes.
const (
CursorBlink Mode = iota
CursorStatic
CursorHide
)
// String returns the cursor mode in a human-readable format. This method is
// provisional and for informational purposes only.
func (c Mode) String() string {
return [...]string{
"blink",
"static",
"hidden",
}[c]
}
// Model is the Bubble Tea model for this cursor element.
type Model struct {
BlinkSpeed time.Duration
// Style for styling the cursor block.
Style lipgloss.Style
// TextStyle is the style used for the cursor when it is hidden (when blinking).
// I.e. displaying normal text.
TextStyle lipgloss.Style
// char is the character under the cursor
char string
// The ID of this Model as it relates to other cursors
id int
// focus indicates whether the containing input is focused
focus bool
// Cursor Blink state.
Blink bool
// Used to manage cursor blink
blinkCtx *blinkCtx
// The ID of the blink message we're expecting to receive.
blinkTag int
// mode determines the behavior of the cursor
mode Mode
}
// New creates a new model with default settings.
func New() Model {
return Model{
BlinkSpeed: defaultBlinkSpeed,
Blink: true,
mode: CursorBlink,
blinkCtx: &blinkCtx{
ctx: context.Background(),
},
}
}
// Update updates the cursor.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
switch msg := msg.(type) {
case initialBlinkMsg:
// We accept all initialBlinkMsgs generated by the Blink command.
if m.mode != CursorBlink || !m.focus {
return m, nil
}
cmd := m.BlinkCmd()
return m, cmd
case BlinkMsg:
// We're choosy about whether to accept blinkMsgs so that our cursor
// only exactly when it should.
// Is this model blink-able?
if m.mode != CursorBlink || !m.focus {
return m, nil
}
// Were we expecting this blink message?
if msg.id != m.id || msg.tag != m.blinkTag {
return m, nil
}
var cmd tea.Cmd
if m.mode == CursorBlink {
m.Blink = !m.Blink
cmd = m.BlinkCmd()
}
return m, cmd
case blinkCanceled: // no-op
return m, nil
}
return m, nil
}
// Mode returns the model's cursor mode. For available cursor modes, see
// type Mode.
func (m Model) Mode() Mode {
return m.mode
}
// SetMode sets the model's cursor mode. This method returns a command.
//
// For available cursor modes, see type CursorMode.
func (m *Model) SetMode(mode Mode) tea.Cmd {
m.mode = mode
m.Blink = m.mode == CursorHide || !m.focus
if mode == CursorBlink {
return Blink
}
return nil
}
// BlinkCmd is an command used to manage cursor blinking.
func (m *Model) BlinkCmd() tea.Cmd {
if m.mode != CursorBlink {
return nil
}
if m.blinkCtx != nil && m.blinkCtx.cancel != nil {
m.blinkCtx.cancel()
}
ctx, cancel := context.WithTimeout(m.blinkCtx.ctx, m.BlinkSpeed)
m.blinkCtx.cancel = cancel
m.blinkTag++
return func() tea.Msg {
defer cancel()
<-ctx.Done()
if ctx.Err() == context.DeadlineExceeded {
return BlinkMsg{id: m.id, tag: m.blinkTag}
}
return blinkCanceled{}
}
}
// Blink is a command used to initialize cursor blinking.
func Blink() tea.Msg {
return initialBlinkMsg{}
}
// Focus focuses the cursor to allow it to blink if desired.
func (m *Model) Focus() tea.Cmd {
m.focus = true
m.Blink = m.mode == CursorHide // show the cursor unless we've explicitly hidden it
if m.mode == CursorBlink && m.focus {
return m.BlinkCmd()
}
return nil
}
// Blur blurs the cursor.
func (m *Model) Blur() {
m.focus = false
m.Blink = true
}
// SetChar sets the character under the cursor.
func (m *Model) SetChar(char string) {
m.char = char
}
// View displays the cursor.
func (m Model) View() string {
if m.Blink {
return m.TextStyle.Inline(true).Render(m.char)
}
return m.Style.Inline(true).Reverse(true).Render(m.char)
}

17
go.mod
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@ -3,14 +3,11 @@ module github.com/charmbracelet/bubbles
go 1.13
require (
github.com/atotto/clipboard v0.1.4
github.com/charmbracelet/bubbletea v0.22.1
github.com/charmbracelet/harmonica v0.2.0
github.com/charmbracelet/lipgloss v0.6.0
github.com/kylelemons/godebug v1.1.0 // indirect
github.com/lucasb-eyer/go-colorful v1.2.0
github.com/mattn/go-runewidth v0.0.14
github.com/muesli/reflow v0.3.0
github.com/muesli/termenv v0.11.1-0.20220212125758-44cd13922739
github.com/sahilm/fuzzy v0.1.0
github.com/charmbracelet/bubbletea v0.9.1-0.20200713153904-2f53eeb54b90
github.com/mattn/go-runewidth v0.0.9
github.com/muesli/termenv v0.5.3-0.20200625163851-04b5c30e4c04
golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899 // indirect
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae // indirect
)
replace github.com/charmbracelet/bubbletea => ../bubbletea

76
go.sum
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@ -1,50 +1,26 @@
github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
github.com/charmbracelet/bubbletea v0.22.1 h1:z66q0LWdJNOWEH9zadiAIXp2GN1AWrwNXU8obVY9X24=
github.com/charmbracelet/bubbletea v0.22.1/go.mod h1:8/7hVvbPN6ZZPkczLiB8YpLkLJ0n7DMho5Wvfd2X1C0=
github.com/charmbracelet/harmonica v0.2.0 h1:8NxJWRWg/bzKqqEaaeFNipOu77YR5t8aSwG4pgaUBiQ=
github.com/charmbracelet/harmonica v0.2.0/go.mod h1:KSri/1RMQOZLbw7AHqgcBycp8pgJnQMYYT8QZRqZ1Ao=
github.com/charmbracelet/lipgloss v0.6.0 h1:1StyZB9vBSOyuZxQUcUwGr17JmojPNm87inij9N3wJY=
github.com/charmbracelet/lipgloss v0.6.0/go.mod h1:tHh2wr34xcHjC2HCXIlGSG1jaDF0S0atAUvBMP6Ppuk=
github.com/containerd/console v1.0.3 h1:lIr7SlA5PxZyMV30bDW0MGbiOPXwc63yRuCP0ARubLw=
github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkXar0TQ1gf3U=
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=
github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88=
github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
github.com/muesli/ansi v0.0.0-20211018074035-2e021307bc4b h1:1XF24mVaiu7u+CFywTdcDo2ie1pzzhwjt6RHqzpMU34=
github.com/muesli/ansi v0.0.0-20211018074035-2e021307bc4b/go.mod h1:fQuZ0gauxyBcmsdE3ZT4NasjaRdxmbCS0jRHsrWu3Ho=
github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
github.com/muesli/reflow v0.2.1-0.20210115123740-9e1d0d53df68/go.mod h1:Xk+z4oIWdQqJzsxyjgl3P22oYZnHdZ8FFTHAQQt5BMQ=
github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
github.com/muesli/termenv v0.11.1-0.20220204035834-5ac8409525e0/go.mod h1:Bd5NYQ7pd+SrtBSrSNoBBmXlcY8+Xj4BMJgh8qcZrvs=
github.com/muesli/termenv v0.11.1-0.20220212125758-44cd13922739 h1:QANkGiGr39l1EESqrE0gZw0/AJNYzIvoGLhIoVYtluI=
github.com/muesli/termenv v0.11.1-0.20220212125758-44cd13922739/go.mod h1:Bd5NYQ7pd+SrtBSrSNoBBmXlcY8+Xj4BMJgh8qcZrvs=
github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
github.com/sahilm/fuzzy v0.1.0 h1:FzWGaw2Opqyu+794ZQ9SYifWv2EIXpwP4q8dY1kDAwI=
github.com/sahilm/fuzzy v0.1.0/go.mod h1:VFvziUEIMCrT6A6tw2RFIXPXXmzXbOsSHF0DOI8ZK9Y=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220204135822-1c1b9b1eba6a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab h1:2QkjZIsXupsJbJIdSjjUOgWK3aEtzyuh2mPt3l/CkeU=
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
github.com/google/goterm v0.0.0-20190703233501-fc88cf888a3f h1:5CjVwnuUcp5adK4gmY6i72gpVFVnZDP2h5TmPScB6u4=
github.com/google/goterm v0.0.0-20190703233501-fc88cf888a3f/go.mod h1:nOFQdrUlIlx6M6ODdSpBj1NVA+VgLC6kmw60mkw34H4=
github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
github.com/muesli/termenv v0.5.3-0.20200625163851-04b5c30e4c04 h1:Wr876oXlAk6avTWi0daXAriOr+r5fqIuyDmtNc/KwY0=
github.com/muesli/termenv v0.5.3-0.20200625163851-04b5c30e4c04/go.mod h1:O1/I6sw+6KcrgAmcs6uiUVr7Lui+DNVbHTzt9Lm/PlI=
github.com/pkg/term v0.0.0-20200520122047-c3ffed290a03 h1:pd4YKIqCB0U7O2I4gWHgEUA2mCEOENmco0l/bM957bU=
github.com/pkg/term v0.0.0-20200520122047-c3ffed290a03/go.mod h1:Z9+Ul5bCbBKnbCvdOWbLqTHhJiYV414CURZJba6L8qA=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9 h1:vEg9joUBmeBcK9iSJftGNf3coIG4HqZElCPehJsfAYM=
golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899 h1:DZhuSZLsGlFL4CmhA8BcRA0mnthyA/nZ00AqCUo7vHg=
golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4 h1:5/PjkGUjvEU5Gl6BxmvKRPpqo2uNMv4rcHBMwzk/st8=
golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae h1:Ih9Yo4hSPImZOpfGuA4bR/ORKTAbhZo2AbWNRCnevdo=
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

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@ -1,233 +0,0 @@
package help
import (
"strings"
"github.com/charmbracelet/bubbles/key"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
// KeyMap is a map of keybindings used to generate help. Since it's an
// interface it can be any type, though struct or a map[string][]key.Binding
// are likely candidates.
//
// Note that if a key is disabled (via key.Binding.SetEnabled) it will not be
// rendered in the help view, so in theory generated help should self-manage.
type KeyMap interface {
// ShortHelp returns a slice of bindings to be displayed in the short
// version of the help. The help bubble will render help in the order in
// which the help items are returned here.
ShortHelp() []key.Binding
// MoreHelp returns an extended group of help items, grouped by columns.
// The help bubble will render the help in the order in which the help
// items are returned here.
FullHelp() [][]key.Binding
}
// Styles is a set of available style definitions for the Help bubble.
type Styles struct {
Ellipsis lipgloss.Style
// Styling for the short help
ShortKey lipgloss.Style
ShortDesc lipgloss.Style
ShortSeparator lipgloss.Style
// Styling for the full help
FullKey lipgloss.Style
FullDesc lipgloss.Style
FullSeparator lipgloss.Style
}
// Model contains the state of the help view.
type Model struct {
Width int
ShowAll bool // if true, render the "full" help menu
ShortSeparator string
FullSeparator string
// The symbol we use in the short help when help items have been truncated
// due to width. Periods of ellipsis by default.
Ellipsis string
Styles Styles
}
// New creates a new help view with some useful defaults.
func New() Model {
keyStyle := lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{
Light: "#909090",
Dark: "#626262",
})
descStyle := lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{
Light: "#B2B2B2",
Dark: "#4A4A4A",
})
sepStyle := lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{
Light: "#DDDADA",
Dark: "#3C3C3C",
})
return Model{
ShortSeparator: " • ",
FullSeparator: " ",
Ellipsis: "…",
Styles: Styles{
ShortKey: keyStyle,
ShortDesc: descStyle,
ShortSeparator: sepStyle,
Ellipsis: sepStyle.Copy(),
FullKey: keyStyle.Copy(),
FullDesc: descStyle.Copy(),
FullSeparator: sepStyle.Copy(),
},
}
}
// NewModel creates a new help view with some useful defaults.
//
// Deprecated. Use New instead.
var NewModel = New
// Update helps satisfy the Bubble Tea Model interface. It's a no-op.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
return m, nil
}
// View renders the help view's current state.
func (m Model) View(k KeyMap) string {
if m.ShowAll {
return m.FullHelpView(k.FullHelp())
}
return m.ShortHelpView(k.ShortHelp())
}
// ShortHelpView renders a single line help view from a slice of keybindings.
// If the line is longer than the maximum width it will be gracefully
// truncated, showing only as many help items as possible.
func (m Model) ShortHelpView(bindings []key.Binding) string {
if len(bindings) == 0 {
return ""
}
var b strings.Builder
var totalWidth int
var separator = m.Styles.ShortSeparator.Inline(true).Render(m.ShortSeparator)
for i, kb := range bindings {
if !kb.Enabled() {
continue
}
var sep string
if totalWidth > 0 && i < len(bindings) {
sep = separator
}
str := sep +
m.Styles.ShortKey.Inline(true).Render(kb.Help().Key) + " " +
m.Styles.ShortDesc.Inline(true).Render(kb.Help().Desc)
w := lipgloss.Width(str)
// If adding this help item would go over the available width, stop
// drawing.
if m.Width > 0 && totalWidth+w > m.Width {
// Although if there's room for an ellipsis, print that.
tail := " " + m.Styles.Ellipsis.Inline(true).Render(m.Ellipsis)
tailWidth := lipgloss.Width(tail)
if totalWidth+tailWidth < m.Width {
b.WriteString(tail)
}
break
}
totalWidth += w
b.WriteString(str)
}
return b.String()
}
// FullHelpView renders help columns from a slice of key binding slices. Each
// top level slice entry renders into a column.
func (m Model) FullHelpView(groups [][]key.Binding) string {
if len(groups) == 0 {
return ""
}
// Linter note: at this time we don't think it's worth the additional
// code complexity involved in preallocating this slice.
//nolint:prealloc
var (
out []string
totalWidth int
sep = m.Styles.FullSeparator.Render(m.FullSeparator)
sepWidth = lipgloss.Width(sep)
)
// Iterate over groups to build columns
for i, group := range groups {
if group == nil || !shouldRenderColumn(group) {
continue
}
var (
keys []string
descriptions []string
)
// Separate keys and descriptions into different slices
for _, kb := range group {
if !kb.Enabled() {
continue
}
keys = append(keys, kb.Help().Key)
descriptions = append(descriptions, kb.Help().Desc)
}
col := lipgloss.JoinHorizontal(lipgloss.Top,
m.Styles.FullKey.Render(strings.Join(keys, "\n")),
m.Styles.FullKey.Render(" "),
m.Styles.FullDesc.Render(strings.Join(descriptions, "\n")),
)
// Column
totalWidth += lipgloss.Width(col)
if m.Width > 0 && totalWidth > m.Width {
break
}
out = append(out, col)
// Separator
if i < len(group)-1 {
totalWidth += sepWidth
if m.Width > 0 && totalWidth > m.Width {
break
}
}
out = append(out, sep)
}
return lipgloss.JoinHorizontal(lipgloss.Top, out...)
}
func shouldRenderColumn(b []key.Binding) (ok bool) {
for _, v := range b {
if v.Enabled() {
return true
}
}
return false
}

View File

@ -1,142 +0,0 @@
// Package key provides some types and functions for generating user-definable
// keymappings useful in Bubble Tea components. There are a few different ways
// you can define a keymapping with this package. Here's one example:
//
// type KeyMap struct {
// Up key.Binding
// Down key.Binding
// }
//
// var DefaultKeyMap = KeyMap{
// Up: key.NewBinding(
// key.WithKeys("k", "up"), // actual keybindings
// key.WithHelp("↑/k", "move up"), // corresponding help text
// ),
// Down: key.NewBinding(
// key.WithKeys("j", "down"),
// key.WithHelp("↓/j", "move down"),
// ),
// }
//
// func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
// switch msg := msg.(type) {
// case tea.KeyMsg:
// switch {
// case key.Matches(msg, DefaultKeyMap.Up):
// // The user pressed up
// case key.Matches(msg, DefaultKeyMap.Down):
// // The user pressed down
// }
// }
//
// // ...
// }
//
// The help information, which is not used in the example above, can be used
// to render help text for keystrokes in your views.
package key
import (
tea "github.com/charmbracelet/bubbletea"
)
// Binding describes a set of keybindings and, optionally, their associated
// help text.
type Binding struct {
keys []string
help Help
disabled bool
}
// BindingOpt is an initialization option for a keybinding. It's used as an
// argument to NewBinding.
type BindingOpt func(*Binding)
// NewBinding returns a new keybinding from a set of BindingOpt options.
func NewBinding(opts ...BindingOpt) Binding {
b := &Binding{}
for _, opt := range opts {
opt(b)
}
return *b
}
// WithKeys initializes a keybinding with the given keystrokes.
func WithKeys(keys ...string) BindingOpt {
return func(b *Binding) {
b.keys = keys
}
}
// WithHelp initializes a keybinding with the given help text.
func WithHelp(key, desc string) BindingOpt {
return func(b *Binding) {
b.help = Help{Key: key, Desc: desc}
}
}
// WithDisabled initializes a disabled keybinding.
func WithDisabled() BindingOpt {
return func(b *Binding) {
b.disabled = true
}
}
// SetKeys sets the keys for the keybinding.
func (b *Binding) SetKeys(keys ...string) {
b.keys = keys
}
// Keys returns the keys for the keybinding.
func (b Binding) Keys() []string {
return b.keys
}
// SetHelp sets the help text for the keybinding.
func (b *Binding) SetHelp(key, desc string) {
b.help = Help{Key: key, Desc: desc}
}
// Help returns the Help information for the keybinding.
func (b Binding) Help() Help {
return b.help
}
// Enabled returns whether or not the keybinding is enabled. Disabled
// keybindings won't be activated and won't show up in help. Keybindings are
// enabled by default.
func (b Binding) Enabled() bool {
return !b.disabled && b.keys != nil
}
// SetEnabled enables or disables the keybinding.
func (b *Binding) SetEnabled(v bool) {
b.disabled = !v
}
// Unbind removes the keys and help from this binding, effectively nullifying
// it. This is a step beyond disabling it, since applications can enable
// or disable key bindings based on application state.
func (b *Binding) Unbind() {
b.keys = nil
b.help = Help{}
}
// Help is help information for a given keybinding.
type Help struct {
Key string
Desc string
}
// Matches checks if the given KeyMsg matches the given bindings.
func Matches(k tea.KeyMsg, b ...Binding) bool {
keys := k.String()
for _, binding := range b {
for _, v := range binding.keys {
if keys == v && binding.Enabled() {
return true
}
}
}
return false
}

View File

@ -1,26 +0,0 @@
package key
import (
"testing"
)
func TestBinding_Enabled(t *testing.T) {
binding := NewBinding(
WithKeys("k", "up"),
WithHelp("↑/k", "move up"),
)
if !binding.Enabled() {
t.Errorf("expected key to be Enabled")
}
binding.SetEnabled(false)
if binding.Enabled() {
t.Errorf("expected key not to be Enabled")
}
binding.SetEnabled(true)
binding.Unbind()
if binding.Enabled() {
t.Errorf("expected key not to be Enabled")
}
}

View File

@ -1,227 +0,0 @@
package list
import (
"fmt"
"io"
"strings"
"github.com/charmbracelet/bubbles/key"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/muesli/reflow/truncate"
)
// DefaultItemStyles defines styling for a default list item.
// See DefaultItemView for when these come into play.
type DefaultItemStyles struct {
// The Normal state.
NormalTitle lipgloss.Style
NormalDesc lipgloss.Style
// The selected item state.
SelectedTitle lipgloss.Style
SelectedDesc lipgloss.Style
// The dimmed state, for when the filter input is initially activated.
DimmedTitle lipgloss.Style
DimmedDesc lipgloss.Style
// Charcters matching the current filter, if any.
FilterMatch lipgloss.Style
}
// NewDefaultItemStyles returns style definitions for a default item. See
// DefaultItemView for when these come into play.
func NewDefaultItemStyles() (s DefaultItemStyles) {
s.NormalTitle = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#1a1a1a", Dark: "#dddddd"}).
Padding(0, 0, 0, 2)
s.NormalDesc = s.NormalTitle.Copy().
Foreground(lipgloss.AdaptiveColor{Light: "#A49FA5", Dark: "#777777"})
s.SelectedTitle = lipgloss.NewStyle().
Border(lipgloss.NormalBorder(), false, false, false, true).
BorderForeground(lipgloss.AdaptiveColor{Light: "#F793FF", Dark: "#AD58B4"}).
Foreground(lipgloss.AdaptiveColor{Light: "#EE6FF8", Dark: "#EE6FF8"}).
Padding(0, 0, 0, 1)
s.SelectedDesc = s.SelectedTitle.Copy().
Foreground(lipgloss.AdaptiveColor{Light: "#F793FF", Dark: "#AD58B4"})
s.DimmedTitle = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#A49FA5", Dark: "#777777"}).
Padding(0, 0, 0, 2)
s.DimmedDesc = s.DimmedTitle.Copy().
Foreground(lipgloss.AdaptiveColor{Light: "#C2B8C2", Dark: "#4D4D4D"})
s.FilterMatch = lipgloss.NewStyle().Underline(true)
return s
}
// DefaultItem describes an items designed to work with DefaultDelegate.
type DefaultItem interface {
Item
Title() string
Description() string
}
// DefaultDelegate is a standard delegate designed to work in lists. It's
// styled by DefaultItemStyles, which can be customized as you like.
//
// The description line can be hidden by setting Description to false, which
// renders the list as single-line-items. The spacing between items can be set
// with the SetSpacing method.
//
// Setting UpdateFunc is optional. If it's set it will be called when the
// ItemDelegate called, which is called when the list's Update function is
// invoked.
//
// Settings ShortHelpFunc and FullHelpFunc is optional. They can can be set to
// include items in the list's default short and full help menus.
type DefaultDelegate struct {
ShowDescription bool
Styles DefaultItemStyles
UpdateFunc func(tea.Msg, *Model) tea.Cmd
ShortHelpFunc func() []key.Binding
FullHelpFunc func() [][]key.Binding
height int
spacing int
}
// NewDefaultDelegate creates a new delegate with default styles.
func NewDefaultDelegate() DefaultDelegate {
return DefaultDelegate{
ShowDescription: true,
Styles: NewDefaultItemStyles(),
height: 2,
spacing: 1,
}
}
// SetHeight sets delegate's preferred height.
func (d *DefaultDelegate) SetHeight(i int) {
d.height = i
}
// Height returns the delegate's preferred height.
// This has effect only if ShowDescription is true,
// otherwise height is always 1.
func (d DefaultDelegate) Height() int {
if d.ShowDescription {
return d.height
}
return 1
}
// SetSpacing set the delegate's spacing.
func (d *DefaultDelegate) SetSpacing(i int) {
d.spacing = i
}
// Spacing returns the delegate's spacing.
func (d DefaultDelegate) Spacing() int {
return d.spacing
}
// Update checks whether the delegate's UpdateFunc is set and calls it.
func (d DefaultDelegate) Update(msg tea.Msg, m *Model) tea.Cmd {
if d.UpdateFunc == nil {
return nil
}
return d.UpdateFunc(msg, m)
}
// Render prints an item.
func (d DefaultDelegate) Render(w io.Writer, m Model, index int, item Item) {
var (
title, desc string
matchedRunes []int
s = &d.Styles
)
if i, ok := item.(DefaultItem); ok {
title = i.Title()
desc = i.Description()
} else {
return
}
if m.width <= 0 {
// short-circuit
return
}
// Prevent text from exceeding list width
textwidth := uint(m.width - s.NormalTitle.GetPaddingLeft() - s.NormalTitle.GetPaddingRight())
title = truncate.StringWithTail(title, textwidth, ellipsis)
if d.ShowDescription {
var lines []string
for i, line := range strings.Split(desc, "\n") {
if i >= d.height-1 {
break
}
lines = append(lines, truncate.StringWithTail(line, textwidth, ellipsis))
}
desc = strings.Join(lines, "\n")
}
// Conditions
var (
isSelected = index == m.Index()
emptyFilter = m.FilterState() == Filtering && m.FilterValue() == ""
isFiltered = m.FilterState() == Filtering || m.FilterState() == FilterApplied
)
if isFiltered && index < len(m.filteredItems) {
// Get indices of matched characters
matchedRunes = m.MatchesForItem(index)
}
if emptyFilter {
title = s.DimmedTitle.Render(title)
desc = s.DimmedDesc.Render(desc)
} else if isSelected && m.FilterState() != Filtering {
if isFiltered {
// Highlight matches
unmatched := s.SelectedTitle.Inline(true)
matched := unmatched.Copy().Inherit(s.FilterMatch)
title = lipgloss.StyleRunes(title, matchedRunes, matched, unmatched)
}
title = s.SelectedTitle.Render(title)
desc = s.SelectedDesc.Render(desc)
} else {
if isFiltered {
// Highlight matches
unmatched := s.NormalTitle.Inline(true)
matched := unmatched.Copy().Inherit(s.FilterMatch)
title = lipgloss.StyleRunes(title, matchedRunes, matched, unmatched)
}
title = s.NormalTitle.Render(title)
desc = s.NormalDesc.Render(desc)
}
if d.ShowDescription {
fmt.Fprintf(w, "%s\n%s", title, desc)
return
}
fmt.Fprintf(w, "%s", title)
}
// ShortHelp returns the delegate's short help.
func (d DefaultDelegate) ShortHelp() []key.Binding {
if d.ShortHelpFunc != nil {
return d.ShortHelpFunc()
}
return nil
}
// FullHelp returns the delegate's full help.
func (d DefaultDelegate) FullHelp() [][]key.Binding {
if d.FullHelpFunc != nil {
return d.FullHelpFunc()
}
return nil
}

View File

@ -1,97 +0,0 @@
package list
import "github.com/charmbracelet/bubbles/key"
// KeyMap defines keybindings. It satisfies to the help.KeyMap interface, which
// is used to render the menu menu.
type KeyMap struct {
// Keybindings used when browsing the list.
CursorUp key.Binding
CursorDown key.Binding
NextPage key.Binding
PrevPage key.Binding
GoToStart key.Binding
GoToEnd key.Binding
Filter key.Binding
ClearFilter key.Binding
// Keybindings used when setting a filter.
CancelWhileFiltering key.Binding
AcceptWhileFiltering key.Binding
// Help toggle keybindings.
ShowFullHelp key.Binding
CloseFullHelp key.Binding
// The quit keybinding. This won't be caught when filtering.
Quit key.Binding
// The quit-no-matter-what keybinding. This will be caught when filtering.
ForceQuit key.Binding
}
// DefaultKeyMap returns a default set of keybindings.
func DefaultKeyMap() KeyMap {
return KeyMap{
// Browsing.
CursorUp: key.NewBinding(
key.WithKeys("up", "k"),
key.WithHelp("↑/k", "up"),
),
CursorDown: key.NewBinding(
key.WithKeys("down", "j"),
key.WithHelp("↓/j", "down"),
),
PrevPage: key.NewBinding(
key.WithKeys("left", "h", "pgup", "b", "u"),
key.WithHelp("←/h/pgup", "prev page"),
),
NextPage: key.NewBinding(
key.WithKeys("right", "l", "pgdown", "f", "d"),
key.WithHelp("→/l/pgdn", "next page"),
),
GoToStart: key.NewBinding(
key.WithKeys("home", "g"),
key.WithHelp("g/home", "go to start"),
),
GoToEnd: key.NewBinding(
key.WithKeys("end", "G"),
key.WithHelp("G/end", "go to end"),
),
Filter: key.NewBinding(
key.WithKeys("/"),
key.WithHelp("/", "filter"),
),
ClearFilter: key.NewBinding(
key.WithKeys("esc"),
key.WithHelp("esc", "clear filter"),
),
// Filtering.
CancelWhileFiltering: key.NewBinding(
key.WithKeys("esc"),
key.WithHelp("esc", "cancel"),
),
AcceptWhileFiltering: key.NewBinding(
key.WithKeys("enter", "tab", "shift+tab", "ctrl+k", "up", "ctrl+j", "down"),
key.WithHelp("enter", "apply filter"),
),
// Toggle help.
ShowFullHelp: key.NewBinding(
key.WithKeys("?"),
key.WithHelp("?", "more"),
),
CloseFullHelp: key.NewBinding(
key.WithKeys("?"),
key.WithHelp("?", "close help"),
),
// Quitting.
Quit: key.NewBinding(
key.WithKeys("q", "esc"),
key.WithHelp("q", "quit"),
),
ForceQuit: key.NewBinding(key.WithKeys("ctrl+c")),
}
}

File diff suppressed because it is too large Load Diff

View File

@ -1,74 +0,0 @@
package list
import (
"fmt"
"io"
"strings"
"testing"
tea "github.com/charmbracelet/bubbletea"
)
type item string
func (i item) FilterValue() string { return "" }
type itemDelegate struct{}
func (d itemDelegate) Height() int { return 1 }
func (d itemDelegate) Spacing() int { return 0 }
func (d itemDelegate) Update(msg tea.Msg, m *Model) tea.Cmd { return nil }
func (d itemDelegate) Render(w io.Writer, m Model, index int, listItem Item) {
i, ok := listItem.(item)
if !ok {
return
}
str := fmt.Sprintf("%d. %s", index+1, i)
fmt.Fprint(w, m.Styles.TitleBar.Render(str))
}
func TestStatusBarItemName(t *testing.T) {
list := New([]Item{item("foo"), item("bar")}, itemDelegate{}, 10, 10)
expected := "2 items"
if !strings.Contains(list.statusView(), expected) {
t.Fatalf("Error: expected view to contain %s", expected)
}
list.SetItems([]Item{item("foo")})
expected = "1 item"
if !strings.Contains(list.statusView(), expected) {
t.Fatalf("Error: expected view to contain %s", expected)
}
}
func TestStatusBarWithoutItems(t *testing.T) {
list := New([]Item{}, itemDelegate{}, 10, 10)
expected := "No items"
if !strings.Contains(list.statusView(), expected) {
t.Fatalf("Error: expected view to contain %s", expected)
}
}
func TestCustomStatusBarItemName(t *testing.T) {
list := New([]Item{item("foo"), item("bar")}, itemDelegate{}, 10, 10)
list.SetStatusBarItemName("connection", "connections")
expected := "2 connections"
if !strings.Contains(list.statusView(), expected) {
t.Fatalf("Error: expected view to contain %s", expected)
}
list.SetItems([]Item{item("foo")})
expected = "1 connection"
if !strings.Contains(list.statusView(), expected) {
t.Fatalf("Error: expected view to contain %s", expected)
}
list.SetItems([]Item{})
expected = "No connections"
if !strings.Contains(list.statusView(), expected) {
t.Fatalf("Error: expected view to contain %s", expected)
}
}

View File

@ -1,99 +0,0 @@
package list
import (
"github.com/charmbracelet/lipgloss"
)
const (
bullet = "•"
ellipsis = "…"
)
// Styles contains style definitions for this list component. By default, these
// values are generated by DefaultStyles.
type Styles struct {
TitleBar lipgloss.Style
Title lipgloss.Style
Spinner lipgloss.Style
FilterPrompt lipgloss.Style
FilterCursor lipgloss.Style
// Default styling for matched characters in a filter. This can be
// overridden by delegates.
DefaultFilterCharacterMatch lipgloss.Style
StatusBar lipgloss.Style
StatusEmpty lipgloss.Style
StatusBarActiveFilter lipgloss.Style
StatusBarFilterCount lipgloss.Style
NoItems lipgloss.Style
PaginationStyle lipgloss.Style
HelpStyle lipgloss.Style
// Styled characters.
ActivePaginationDot lipgloss.Style
InactivePaginationDot lipgloss.Style
ArabicPagination lipgloss.Style
DividerDot lipgloss.Style
}
// DefaultStyles returns a set of default style definitions for this list
// component.
func DefaultStyles() (s Styles) {
verySubduedColor := lipgloss.AdaptiveColor{Light: "#DDDADA", Dark: "#3C3C3C"}
subduedColor := lipgloss.AdaptiveColor{Light: "#9B9B9B", Dark: "#5C5C5C"}
s.TitleBar = lipgloss.NewStyle().Padding(0, 0, 1, 2)
s.Title = lipgloss.NewStyle().
Background(lipgloss.Color("62")).
Foreground(lipgloss.Color("230")).
Padding(0, 1)
s.Spinner = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#8E8E8E", Dark: "#747373"})
s.FilterPrompt = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#04B575", Dark: "#ECFD65"})
s.FilterCursor = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#EE6FF8", Dark: "#EE6FF8"})
s.DefaultFilterCharacterMatch = lipgloss.NewStyle().Underline(true)
s.StatusBar = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#A49FA5", Dark: "#777777"}).
Padding(0, 0, 1, 2)
s.StatusEmpty = lipgloss.NewStyle().Foreground(subduedColor)
s.StatusBarActiveFilter = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#1a1a1a", Dark: "#dddddd"})
s.StatusBarFilterCount = lipgloss.NewStyle().Foreground(verySubduedColor)
s.NoItems = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#909090", Dark: "#626262"})
s.ArabicPagination = lipgloss.NewStyle().Foreground(subduedColor)
s.PaginationStyle = lipgloss.NewStyle().PaddingLeft(2) //nolint:gomnd
s.HelpStyle = lipgloss.NewStyle().Padding(1, 0, 0, 2)
s.ActivePaginationDot = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#847A85", Dark: "#979797"}).
SetString(bullet)
s.InactivePaginationDot = lipgloss.NewStyle().
Foreground(verySubduedColor).
SetString(bullet)
s.DividerDot = lipgloss.NewStyle().
Foreground(verySubduedColor).
SetString(" " + bullet + " ")
return s
}

View File

@ -1,4 +1,4 @@
// Package paginator provides a Bubble Tea package for calulating pagination
// package paginator provides a Bubble Tea package for calulating pagination
// and rendering pagination info. Note that this package does not render actual
// pages: it's purely for handling keystrokes related to pagination, and
// rendering pagination status.
@ -7,71 +7,41 @@ package paginator
import (
"fmt"
"github.com/charmbracelet/bubbles/key"
tea "github.com/charmbracelet/bubbletea"
)
// Type specifies the way we render pagination.
type Type int
// Pagination rendering options.
// Pagination rendering options
const (
Arabic Type = iota
Dots
)
// KeyMap is the key bindings for different actions within the paginator.
type KeyMap struct {
PrevPage key.Binding
NextPage key.Binding
}
// DefaultKeyMap is the default set of key bindings for navigating and acting
// upon the paginator.
var DefaultKeyMap = KeyMap{
PrevPage: key.NewBinding(key.WithKeys("pgup", "left", "h")),
NextPage: key.NewBinding(key.WithKeys("pgdown", "right", "l")),
}
// Model is the Bubble Tea model for this user interface.
// Model is the Tea model for this user interface.
type Model struct {
// Type configures how the pagination is rendered (Arabic, Dots).
Type Type
// Page is the current page number.
Page int
// PerPage is the number of items per page.
PerPage int
// TotalPages is the total number of pages.
TotalPages int
// ActiveDot is used to mark the current page under the Dots display type.
ActiveDot string
// InactiveDot is used to mark inactive pages under the Dots display type.
InactiveDot string
// ArabicFormat is the printf-style format to use for the Arabic display type.
ArabicFormat string
// KeyMap encodes the keybindings recognized by the widget.
KeyMap KeyMap
// Deprecated: customize KeyMap instead.
Type Type
Page int
PerPage int
TotalPages int
ActiveDot string
InactiveDot string
ArabicFormat string
UsePgUpPgDownKeys bool
// Deprecated: customize KeyMap instead.
UseLeftRightKeys bool
// Deprecated: customize KeyMap instead.
UseUpDownKeys bool
// Deprecated: customize KeyMap instead.
UseHLKeys bool
// Deprecated: customize KeyMap instead.
UseJKKeys bool
UseLeftRightKeys bool
UseUpDownKeys bool
UseHLKeys bool
UseJKKeys bool
}
// SetTotalPages is a helper function for calculating the total number of pages
// SetTotalPages is a helper function for calculatng the total number of pages
// from a given number of items. It's use is optional since this pager can be
// used for other things beyond navigating sets. Note that it both returns the
// number of total pages and alters the model.
func (m *Model) SetTotalPages(items int) int {
if items < 1 {
return m.TotalPages
if items == 0 {
return 0
}
n := items / m.PerPage
if items%m.PerPage > 0 {
@ -95,9 +65,10 @@ func (m Model) ItemsOnPage(totalItems int) int {
// of the slice you're rendering and you'll receive the start and end bounds
// corresponding the to pagination. For example:
//
// bunchOfStuff := []stuff{...}
// start, end := model.GetSliceBounds(len(bunchOfStuff))
// sliceToRender := bunchOfStuff[start:end]
// bunchOfStuff := []stuff{...}
// start, end := model.GetSliceBounds(len(bunchOfStuff))
// sliceToRender := bunchOfStuff[start:end]
//
func (m *Model) GetSliceBounds(length int) (start int, end int) {
start = m.Page * m.PerPage
end = min(m.Page*m.PerPage+m.PerPage, length)
@ -120,39 +91,72 @@ func (m *Model) NextPage() {
}
}
// OnLastPage returns whether or not we're on the last page.
// LastPage returns whether or not we're on the last page.
func (m Model) OnLastPage() bool {
return m.Page == m.TotalPages-1
}
// New creates a new model with defaults.
func New() Model {
// NewModel creates a new model with defaults.
func NewModel() Model {
return Model{
Type: Arabic,
Page: 0,
PerPage: 1,
TotalPages: 1,
KeyMap: DefaultKeyMap,
ActiveDot: "•",
InactiveDot: "○",
ArabicFormat: "%d/%d",
Type: Arabic,
Page: 0,
PerPage: 1,
TotalPages: 1,
ActiveDot: "•",
InactiveDot: "○",
ArabicFormat: "%d/%d",
UsePgUpPgDownKeys: true,
UseLeftRightKeys: true,
UseUpDownKeys: false,
UseHLKeys: true,
UseJKKeys: false,
}
}
// NewModel creates a new model with defaults.
//
// Deprecated. Use New instead.
var NewModel = New
// Update is the Tea update function which binds keystrokes to pagination.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch {
case key.Matches(msg, m.KeyMap.NextPage):
m.NextPage()
case key.Matches(msg, m.KeyMap.PrevPage):
m.PrevPage()
if m.UsePgUpPgDownKeys {
switch msg.String() {
case "pgup":
m.PrevPage()
case "pgdown":
m.NextPage()
}
}
if m.UseLeftRightKeys {
switch msg.String() {
case "left":
m.PrevPage()
case "right":
m.NextPage()
}
}
if m.UseUpDownKeys {
switch msg.String() {
case "up":
m.PrevPage()
case "down":
m.NextPage()
}
}
if m.UseHLKeys {
switch msg.String() {
case "h":
m.PrevPage()
case "l":
m.NextPage()
}
}
if m.UseJKKeys {
switch msg.String() {
case "j":
m.PrevPage()
case "k":
m.NextPage()
}
}
}
@ -160,16 +164,20 @@ func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
}
// View renders the pagination to a string.
func (m Model) View() string {
func View(model tea.Model) string {
m, ok := model.(Model)
if !ok {
return "could not perform assertion on model"
}
switch m.Type {
case Dots:
return m.dotsView()
return dotsView(m)
default:
return m.arabicView()
return arabicView(m)
}
}
func (m Model) dotsView() string {
func dotsView(m Model) string {
var s string
for i := 0; i < m.TotalPages; i++ {
if i == m.Page {
@ -181,7 +189,7 @@ func (m Model) dotsView() string {
return s
}
func (m Model) arabicView() string {
func arabicView(m Model) string {
return fmt.Sprintf(m.ArabicFormat, m.Page+1, m.TotalPages)
}

View File

@ -1,365 +0,0 @@
package progress
import (
"fmt"
"math"
"strings"
"sync"
"time"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/harmonica"
"github.com/charmbracelet/lipgloss"
"github.com/lucasb-eyer/go-colorful"
"github.com/muesli/reflow/ansi"
"github.com/muesli/termenv"
)
// Internal ID management. Used during animating to assure that frame messages
// can only be received by progress components that sent them.
var (
lastID int
idMtx sync.Mutex
)
// Return the next ID we should use on the model.
func nextID() int {
idMtx.Lock()
defer idMtx.Unlock()
lastID++
return lastID
}
const (
fps = 60
defaultWidth = 40
defaultFrequency = 18.0
defaultDamping = 1.0
)
// Option is used to set options in New. For example:
//
// progress := New(
// WithRamp("#ff0000", "#0000ff"),
// WithoutPercentage(),
// )
type Option func(*Model)
// WithDefaultGradient sets a gradient fill with default colors.
func WithDefaultGradient() Option {
return WithGradient("#5A56E0", "#EE6FF8")
}
// WithGradient sets a gradient fill blending between two colors.
func WithGradient(colorA, colorB string) Option {
return func(m *Model) {
m.setRamp(colorA, colorB, false)
}
}
// WithDefaultScaledGradient sets a gradient with default colors, and scales the
// gradient to fit the filled portion of the ramp.
func WithDefaultScaledGradient() Option {
return WithScaledGradient("#5A56E0", "#EE6FF8")
}
// WithScaledGradient scales the gradient to fit the width of the filled portion of
// the progress bar.
func WithScaledGradient(colorA, colorB string) Option {
return func(m *Model) {
m.setRamp(colorA, colorB, true)
}
}
// WithSolidFill sets the progress to use a solid fill with the given color.
func WithSolidFill(color string) Option {
return func(m *Model) {
m.FullColor = color
m.useRamp = false
}
}
// WithoutPercentage hides the numeric percentage.
func WithoutPercentage() Option {
return func(m *Model) {
m.ShowPercentage = false
}
}
// WithWidth sets the initial width of the progress bar. Note that you can also
// set the width via the Width property, which can come in handy if you're
// waiting for a tea.WindowSizeMsg.
func WithWidth(w int) Option {
return func(m *Model) {
m.Width = w
}
}
// WithSpringOptions sets the initial frequency and damping options for the
// progressbar's built-in spring-based animation. Frequency corresponds to
// speed, and damping to bounciness. For details see:
//
// https://github.com/charmbracelet/harmonica
func WithSpringOptions(frequency, damping float64) Option {
return func(m *Model) {
m.SetSpringOptions(frequency, damping)
m.springCustomized = true
}
}
// WithColorProfile sets the color profile to use for the progress bar.
func WithColorProfile(p termenv.Profile) Option {
return func(m *Model) {
m.colorProfile = p
}
}
// FrameMsg indicates that an animation step should occur.
type FrameMsg struct {
id int
tag int
}
// Model stores values we'll use when rendering the progress bar.
type Model struct {
// An identifier to keep us from receiving messages intended for other
// progress bars.
id int
// An identifier to keep us from receiving frame messages too quickly.
tag int
// Total width of the progress bar, including percentage, if set.
Width int
// "Filled" sections of the progress bar.
Full rune
FullColor string
// "Empty" sections of progress bar.
Empty rune
EmptyColor string
// Settings for rendering the numeric percentage.
ShowPercentage bool
PercentFormat string // a fmt string for a float
PercentageStyle lipgloss.Style
// Members for animated transitions.
spring harmonica.Spring
springCustomized bool
percentShown float64 // percent currently displaying
targetPercent float64 // percent to which we're animating
velocity float64
// Gradient settings
useRamp bool
rampColorA colorful.Color
rampColorB colorful.Color
// When true, we scale the gradient to fit the width of the filled section
// of the progress bar. When false, the width of the gradient will be set
// to the full width of the progress bar.
scaleRamp bool
// Color profile for the progress bar.
colorProfile termenv.Profile
}
// New returns a model with default values.
func New(opts ...Option) Model {
m := Model{
id: nextID(),
Width: defaultWidth,
Full: '█',
FullColor: "#7571F9",
Empty: '░',
EmptyColor: "#606060",
ShowPercentage: true,
PercentFormat: " %3.0f%%",
colorProfile: termenv.ColorProfile(),
}
if !m.springCustomized {
m.SetSpringOptions(defaultFrequency, defaultDamping)
}
for _, opt := range opts {
opt(&m)
}
return m
}
// NewModel returns a model with default values.
//
// Deprecated. Use New instead.
var NewModel = New
// Init exists satisfy the tea.Model interface.
func (m Model) Init() tea.Cmd {
return nil
}
// Update is used to animation the progress bar during transitions. Use
// SetPercent to create the command you'll need to trigger the animation.
//
// If you're rendering with ViewAs you won't need this.
func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case FrameMsg:
if msg.id != m.id || msg.tag != m.tag {
return m, nil
}
// If we've more or less reached equilibrium, stop updating.
dist := math.Abs(m.percentShown - m.targetPercent)
if dist < 0.001 && m.velocity < 0.01 {
return m, nil
}
m.percentShown, m.velocity = m.spring.Update(m.percentShown, m.velocity, m.targetPercent)
return m, m.nextFrame()
default:
return m, nil
}
}
// SetSpringOptions sets the frequency and damping for the current spring.
// Frequency corresponds to speed, and damping to bounciness. For details see:
//
// https://github.com/charmbracelet/harmonica
func (m *Model) SetSpringOptions(frequency, damping float64) {
m.spring = harmonica.NewSpring(harmonica.FPS(fps), frequency, damping)
}
// Percent returns the current visible percentage on the model. This is only
// relevant when you're animating the progress bar.
//
// If you're rendering with ViewAs you won't need this.
func (m Model) Percent() float64 {
return m.targetPercent
}
// SetPercent sets the percentage state of the model as well as a command
// necessary for animating the progress bar to this new percentage.
//
// If you're rendering with ViewAs you won't need this.
func (m *Model) SetPercent(p float64) tea.Cmd {
m.targetPercent = math.Max(0, math.Min(1, p))
m.tag++
return m.nextFrame()
}
// IncrPercent increments the percentage by a given amount, returning a command
// necessary to animate the progress bar to the new percentage.
//
// If you're rendering with ViewAs you won't need this.
func (m *Model) IncrPercent(v float64) tea.Cmd {
return m.SetPercent(m.Percent() + v)
}
// DecrPercent decrements the percentage by a given amount, returning a command
// necessary to animate the progress bar to the new percentage.
//
// If you're rendering with ViewAs you won't need this.
func (m *Model) DecrPercent(v float64) tea.Cmd {
return m.SetPercent(m.Percent() - v)
}
// View renders the an animated progress bar in its current state. To render
// a static progress bar based on your own calculations use ViewAs instead.
func (m Model) View() string {
return m.ViewAs(m.percentShown)
}
// ViewAs renders the progress bar with a given percentage.
func (m Model) ViewAs(percent float64) string {
b := strings.Builder{}
percentView := m.percentageView(percent)
m.barView(&b, percent, ansi.PrintableRuneWidth(percentView))
b.WriteString(percentView)
return b.String()
}
func (m *Model) nextFrame() tea.Cmd {
return tea.Tick(time.Second/time.Duration(fps), func(time.Time) tea.Msg {
return FrameMsg{id: m.id, tag: m.tag}
})
}
func (m Model) barView(b *strings.Builder, percent float64, textWidth int) {
var (
tw = max(0, m.Width-textWidth) // total width
fw = int(math.Round((float64(tw) * percent))) // filled width
p float64
)
fw = max(0, min(tw, fw))
if m.useRamp {
// Gradient fill
for i := 0; i < fw; i++ {
if m.scaleRamp {
p = float64(i) / float64(fw)
} else {
p = float64(i) / float64(tw)
}
c := m.rampColorA.BlendLuv(m.rampColorB, p).Hex()
b.WriteString(termenv.
String(string(m.Full)).
Foreground(m.color(c)).
String(),
)
}
} else {
// Solid fill
s := termenv.String(string(m.Full)).Foreground(m.color(m.FullColor)).String()
b.WriteString(strings.Repeat(s, fw))
}
// Empty fill
e := termenv.String(string(m.Empty)).Foreground(m.color(m.EmptyColor)).String()
n := max(0, tw-fw)
b.WriteString(strings.Repeat(e, n))
}
func (m Model) percentageView(percent float64) string {
if !m.ShowPercentage {
return ""
}
percent = math.Max(0, math.Min(1, percent))
percentage := fmt.Sprintf(m.PercentFormat, percent*100) //nolint:gomnd
percentage = m.PercentageStyle.Inline(true).Render(percentage)
return percentage
}
func (m *Model) setRamp(colorA, colorB string, scaled bool) {
// In the event of an error colors here will default to black. For
// usability's sake, and because such an error is only cosmetic, we're
// ignoring the error for sake of usability.
a, _ := colorful.Hex(colorA)
b, _ := colorful.Hex(colorB)
m.useRamp = true
m.scaleRamp = scaled
m.rampColorA = a
m.rampColorB = b
}
func (m Model) color(c string) termenv.Color {
return m.colorProfile.Color(c)
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
func min(a, b int) int {
if a < b {
return a
}
return b
}

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@ -1,226 +1,99 @@
package spinner
import (
"sync"
"time"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/muesli/termenv"
)
// Internal ID management. Used during animating to ensure that frame messages
// are received only by spinner components that sent them.
var (
lastID int
idMtx sync.Mutex
const (
defaultFPS = time.Second / 10
)
// Return the next ID we should use on the Model.
func nextID() int {
idMtx.Lock()
defer idMtx.Unlock()
lastID++
return lastID
}
// Spinner is a set of frames used in animating the spinner.
type Spinner struct {
Frames []string
FPS time.Duration
}
type Spinner = []string
// Some spinners to choose from. You could also make your own.
var (
Line = Spinner{
Frames: []string{"|", "/", "-", "\\"},
FPS: time.Second / 10, //nolint:gomnd
}
Dot = Spinner{
Frames: []string{"⣾ ", "⣽ ", "⣻ ", "⢿ ", "⡿ ", "⣟ ", "⣯ ", "⣷ "},
FPS: time.Second / 10, //nolint:gomnd
}
MiniDot = Spinner{
Frames: []string{"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"},
FPS: time.Second / 12, //nolint:gomnd
}
Jump = Spinner{
Frames: []string{"⢄", "⢂", "⢁", "⡁", "⡈", "⡐", "⡠"},
FPS: time.Second / 10, //nolint:gomnd
}
Pulse = Spinner{
Frames: []string{"█", "▓", "▒", "░"},
FPS: time.Second / 8, //nolint:gomnd
}
Points = Spinner{
Frames: []string{"∙∙∙", "●∙∙", "∙●∙", "∙∙●"},
FPS: time.Second / 7, //nolint:gomnd
}
Globe = Spinner{
Frames: []string{"🌍", "🌎", "🌏"},
FPS: time.Second / 4, //nolint:gomnd
}
Moon = Spinner{
Frames: []string{"🌑", "🌒", "🌓", "🌔", "🌕", "🌖", "🌗", "🌘"},
FPS: time.Second / 8, //nolint:gomnd
}
Monkey = Spinner{
Frames: []string{"🙈", "🙉", "🙊"},
FPS: time.Second / 3, //nolint:gomnd
}
Meter = Spinner{
Frames: []string{
"▱▱▱",
"▰▱▱",
"▰▰▱",
"▰▰▰",
"▰▰▱",
"▰▱▱",
"▱▱▱",
},
FPS: time.Second / 7, //nolint:gomnd
}
Hamburger = Spinner{
Frames: []string{"☱", "☲", "☴", "☲"},
FPS: time.Second / 3, //nolint:gomnd
}
// Some spinners to choose from. You could also make your own.
Line = Spinner([]string{"|", "/", "-", "\\"})
Dot = Spinner([]string{"⣾ ", "⣽ ", "⣻ ", "⢿ ", "⡿ ", "⣟ ", "⣯ ", "⣷ "})
color = termenv.ColorProfile().Color
)
// Model contains the state for the spinner. Use New to create new models
// Model contains the state for the spinner. Use NewModel to create new models
// rather than using Model as a struct literal.
type Model struct {
// Spinner settings to use. See type Spinner.
Spinner Spinner
// Style sets the styling for the spinner. Most of the time you'll just
// want foreground and background coloring, and potentially some padding.
//
// For an introduction to styling with Lip Gloss see:
// https://github.com/charmbracelet/lipgloss
Style lipgloss.Style
// Type is the set of frames to use. See Spinner.
Frames Spinner
// FPS is the speed at which the ticker should tick
FPS time.Duration
// ForegroundColor sets the background color of the spinner. It can be a
// hex code or one of the 256 ANSI colors. If the terminal emulator can't
// doesn't support the color specified it will automatically degrade
// (per github.com/muesli/termenv).
ForegroundColor string
// BackgroundColor sets the background color of the spinner. It can be a
// hex code or one of the 256 ANSI colors. If the terminal emulator can't
// doesn't support the color specified it will automatically degrade
// (per github.com/muesli/termenv).
BackgroundColor string
frame int
id int
tag int
}
// ID returns the spinner's unique ID.
func (m Model) ID() int {
return m.id
}
// New returns a model with default values.
func New(opts ...Option) Model {
m := Model{
Spinner: Line,
id: nextID(),
}
for _, opt := range opts {
opt(&m)
}
return m
}
// NewModel returns a model with default values.
//
// Deprecated. Use New instead.
var NewModel = New
// TickMsg indicates that the timer has ticked and we should render a frame.
type TickMsg struct {
Time time.Time
tag int
ID int
func NewModel() Model {
return Model{
Frames: Line,
FPS: defaultFPS,
}
}
// Update is the Tea update function.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
switch msg := msg.(type) {
case TickMsg:
// If an ID is set, and the ID doesn't belong to this spinner, reject
// the message.
if msg.ID > 0 && msg.ID != m.id {
return m, nil
}
// If a tag is set, and it's not the one we expect, reject the message.
// This prevents the spinner from receiving too many messages and
// thus spinning too fast.
if msg.tag > 0 && msg.tag != m.tag {
return m, nil
}
// TickMsg indicates that the timer has ticked and we should render a frame.
type TickMsg struct{}
// Update is the Tea update function. This will advance the spinner one frame
// every time it's called, regardless the message passed, so be sure the logic
// is setup so as not to call this Update needlessly.
func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
if _, ok := msg.(TickMsg); ok {
m.frame++
if m.frame >= len(m.Spinner.Frames) {
if m.frame >= len(m.Frames) {
m.frame = 0
}
m.tag++
return m, m.tick(m.id, m.tag)
default:
return m, nil
return m, Tick(m)
}
return m, nil
}
// View renders the model's view.
func (m Model) View() string {
if m.frame >= len(m.Spinner.Frames) {
return "(error)"
func View(model Model) string {
if model.frame >= len(model.Frames) {
return "error"
}
return m.Style.Render(m.Spinner.Frames[m.frame])
}
frame := model.Frames[model.frame]
// Tick is the command used to advance the spinner one frame. Use this command
// to effectively start the spinner.
func (m Model) Tick() tea.Msg {
return TickMsg{
// The time at which the tick occurred.
Time: time.Now(),
// The ID of the spinner that this message belongs to. This can be
// helpful when routing messages, however bear in mind that spinners
// will ignore messages that don't contain ID by default.
ID: m.id,
tag: m.tag,
if model.ForegroundColor != "" || model.BackgroundColor != "" {
return termenv.
String(frame).
Foreground(color(model.ForegroundColor)).
Background(color(model.BackgroundColor)).
String()
}
return frame
}
func (m Model) tick(id, tag int) tea.Cmd {
return tea.Tick(m.Spinner.FPS, func(t time.Time) tea.Msg {
return TickMsg{
Time: t,
ID: id,
tag: tag,
}
// Tick is the command used to advance the spinner one frame.
func Tick(m Model) tea.Cmd {
return tea.Tick(m.FPS, func(time.Time) tea.Msg {
return TickMsg{}
})
}
// Tick is the command used to advance the spinner one frame. Use this command
// to effectively start the spinner.
//
// This method is deprecated. Use Model.Tick instead.
func Tick() tea.Msg {
return TickMsg{Time: time.Now()}
}
// Option is used to set options in New. For example:
//
// spinner := New(WithSpinner(Dot))
type Option func(*Model)
// WithSpinner is an option to set the spinner.
func WithSpinner(spinner Spinner) Option {
return func(m *Model) {
m.Spinner = spinner
}
}
// WithStyle is an option to set the spinner style.
func WithStyle(style lipgloss.Style) Option {
return func(m *Model) {
m.Style = style
}
}

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@ -1,61 +0,0 @@
package spinner_test
import (
"testing"
"github.com/charmbracelet/bubbles/spinner"
)
func TestSpinnerNew(t *testing.T) {
assertEqualSpinner := func(t *testing.T, exp, got spinner.Spinner) {
t.Helper()
if exp.FPS != got.FPS {
t.Errorf("expecting %d FPS, got %d", exp.FPS, got.FPS)
}
if e, g := len(exp.Frames), len(got.Frames); e != g {
t.Fatalf("expecting %d frames, got %d", e, g)
}
for i, e := range exp.Frames {
if g := got.Frames[i]; e != g {
t.Errorf("expecting frame index %d with value %q, got %q", i, e, g)
}
}
}
t.Run("default", func(t *testing.T) {
s := spinner.New()
assertEqualSpinner(t, spinner.Line, s.Spinner)
})
t.Run("WithSpinner", func(t *testing.T) {
customSpinner := spinner.Spinner{
Frames: []string{"a", "b", "c", "d"},
FPS: 16,
}
s := spinner.New(spinner.WithSpinner(customSpinner))
assertEqualSpinner(t, customSpinner, s.Spinner)
})
tests := map[string]spinner.Spinner{
"Line": spinner.Line,
"Dot": spinner.Dot,
"MiniDot": spinner.MiniDot,
"Jump": spinner.Jump,
"Pulse": spinner.Pulse,
"Points": spinner.Points,
"Globe": spinner.Globe,
"Moon": spinner.Moon,
"Monkey": spinner.Monkey,
}
for name, s := range tests {
t.Run(name, func(t *testing.T) {
assertEqualSpinner(t, spinner.New(spinner.WithSpinner(s)).Spinner, s)
})
}
}

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@ -1,152 +0,0 @@
// Package stopwatch provides a simple stopwatch component.
package stopwatch
import (
"sync"
"time"
tea "github.com/charmbracelet/bubbletea"
)
var (
lastID int
idMtx sync.Mutex
)
func nextID() int {
idMtx.Lock()
defer idMtx.Unlock()
lastID++
return lastID
}
// TickMsg is a message that is sent on every timer tick.
type TickMsg struct {
// ID is the identifier of the stopwatch that send the message. This makes
// it possible to determine which stopwatch a tick belongs to when there
// are multiple stopwatches running.
//
// Note, however, that a stopwatch will reject ticks from other
// stopwatches, so it's safe to flow all TickMsgs through all stopwatches
// and have them still behave appropriately.
ID int
}
// StartStopMsg is sent when the stopwatch should start or stop.
type StartStopMsg struct {
ID int
running bool
}
// ResetMsg is sent when the stopwatch should reset.
type ResetMsg struct {
ID int
}
// Model for the stopwatch component.
type Model struct {
d time.Duration
id int
running bool
// How long to wait before every tick. Defaults to 1 second.
Interval time.Duration
}
// NewWithInterval creates a new stopwatch with the given timeout and tick
// interval.
func NewWithInterval(interval time.Duration) Model {
return Model{
Interval: interval,
id: nextID(),
}
}
// New creates a new stopwatch with 1s interval.
func New() Model {
return NewWithInterval(time.Second)
}
// ID returns the unique ID of the model.
func (m Model) ID() int {
return m.id
}
// Init starts the stopwatch.
func (m Model) Init() tea.Cmd {
return m.Start()
}
// Start starts the stopwatch.
func (m Model) Start() tea.Cmd {
return tea.Batch(func() tea.Msg {
return StartStopMsg{ID: m.id, running: true}
}, tick(m.id, m.Interval))
}
// Stop stops the stopwatch.
func (m Model) Stop() tea.Cmd {
return func() tea.Msg {
return StartStopMsg{ID: m.id, running: false}
}
}
// Toggle stops the stopwatch if it is running and starts it if it is stopped.
func (m Model) Toggle() tea.Cmd {
if m.Running() {
return m.Stop()
}
return m.Start()
}
// Reset restes the stopwatch to 0.
func (m Model) Reset() tea.Cmd {
return func() tea.Msg {
return ResetMsg{ID: m.id}
}
}
// Running returns true if the stopwatch is running or false if it is stopped.
func (m Model) Running() bool {
return m.running
}
// Update handles the timer tick.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
switch msg := msg.(type) {
case StartStopMsg:
if msg.ID != m.id {
return m, nil
}
m.running = msg.running
case ResetMsg:
if msg.ID != m.id {
return m, nil
}
m.d = 0
case TickMsg:
if !m.running || msg.ID != m.id {
break
}
m.d += m.Interval
return m, tick(m.id, m.Interval)
}
return m, nil
}
// Elapsed returns the time elapsed.
func (m Model) Elapsed() time.Duration {
return m.d
}
// View of the timer component.
func (m Model) View() string {
return m.d.String()
}
func tick(id int, d time.Duration) tea.Cmd {
return tea.Tick(d, func(_ time.Time) tea.Msg {
return TickMsg{ID: id}
})
}

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@ -1,392 +0,0 @@
package table
import (
"strings"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/viewport"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/mattn/go-runewidth"
)
// Model defines a state for the table widget.
type Model struct {
KeyMap KeyMap
cols []Column
rows []Row
cursor int
focus bool
styles Styles
viewport viewport.Model
}
// Row represents one line in the table.
type Row []string
// Column defines the table structure.
type Column struct {
Title string
Width int
}
// KeyMap defines keybindings. It satisfies to the help.KeyMap interface, which
// is used to render the menu menu.
type KeyMap struct {
LineUp key.Binding
LineDown key.Binding
PageUp key.Binding
PageDown key.Binding
HalfPageUp key.Binding
HalfPageDown key.Binding
GotoTop key.Binding
GotoBottom key.Binding
}
// DefaultKeyMap returns a default set of keybindings.
func DefaultKeyMap() KeyMap {
const spacebar = " "
return KeyMap{
LineUp: key.NewBinding(
key.WithKeys("up", "k"),
key.WithHelp("↑/k", "up"),
),
LineDown: key.NewBinding(
key.WithKeys("down", "j"),
key.WithHelp("↓/j", "down"),
),
PageUp: key.NewBinding(
key.WithKeys("b", "pgup"),
key.WithHelp("b/pgup", "page up"),
),
PageDown: key.NewBinding(
key.WithKeys("f", "pgdown", spacebar),
key.WithHelp("f/pgdn", "page down"),
),
HalfPageUp: key.NewBinding(
key.WithKeys("u", "ctrl+u"),
key.WithHelp("u", "½ page up"),
),
HalfPageDown: key.NewBinding(
key.WithKeys("d", "ctrl+d"),
key.WithHelp("d", "½ page down"),
),
GotoTop: key.NewBinding(
key.WithKeys("home", "g"),
key.WithHelp("g/home", "go to start"),
),
GotoBottom: key.NewBinding(
key.WithKeys("end", "G"),
key.WithHelp("G/end", "go to end"),
),
}
}
// Styles contains style definitions for this list component. By default, these
// values are generated by DefaultStyles.
type Styles struct {
Header lipgloss.Style
Cell lipgloss.Style
Selected lipgloss.Style
}
// DefaultStyles returns a set of default style definitions for this table.
func DefaultStyles() Styles {
return Styles{
Selected: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("212")),
Header: lipgloss.NewStyle().Bold(true).Padding(0, 1),
Cell: lipgloss.NewStyle().Padding(0, 1),
}
}
// SetStyles sets the table styles.
func (m *Model) SetStyles(s Styles) {
m.styles = s
m.UpdateViewport()
}
// Option is used to set options in New. For example:
//
// table := New(WithColumns([]Column{{Title: "ID", Width: 10}}))
type Option func(*Model)
// New creates a new model for the table widget.
func New(opts ...Option) Model {
m := Model{
cursor: 0,
viewport: viewport.New(0, 20),
KeyMap: DefaultKeyMap(),
styles: DefaultStyles(),
}
for _, opt := range opts {
opt(&m)
}
m.UpdateViewport()
return m
}
// WithColumns sets the table columns (headers).
func WithColumns(cols []Column) Option {
return func(m *Model) {
m.cols = cols
}
}
// WithRows sets the table rows (data).
func WithRows(rows []Row) Option {
return func(m *Model) {
m.rows = rows
}
}
// WithHeight sets the height of the table.
func WithHeight(h int) Option {
return func(m *Model) {
m.viewport.Height = h
}
}
// WithWidth sets the width of the table.
func WithWidth(w int) Option {
return func(m *Model) {
m.viewport.Width = w
}
}
// WithFocused sets the focus state of the table.
func WithFocused(f bool) Option {
return func(m *Model) {
m.focus = f
}
}
// WithStyles sets the table styles.
func WithStyles(s Styles) Option {
return func(m *Model) {
m.styles = s
}
}
// WithKeyMap sets the key map.
func WithKeyMap(km KeyMap) Option {
return func(m *Model) {
m.KeyMap = km
}
}
// Update is the Bubble Tea update loop.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
if !m.focus {
return m, nil
}
var cmds []tea.Cmd
switch msg := msg.(type) {
case tea.KeyMsg:
switch {
case key.Matches(msg, m.KeyMap.LineUp):
m.MoveUp(1)
case key.Matches(msg, m.KeyMap.LineDown):
m.MoveDown(1)
case key.Matches(msg, m.KeyMap.PageUp):
m.MoveUp(m.viewport.Height)
case key.Matches(msg, m.KeyMap.PageDown):
m.MoveDown(m.viewport.Height)
case key.Matches(msg, m.KeyMap.HalfPageUp):
m.MoveUp(m.viewport.Height / 2)
case key.Matches(msg, m.KeyMap.HalfPageDown):
m.MoveDown(m.viewport.Height / 2)
case key.Matches(msg, m.KeyMap.LineDown):
m.MoveDown(1)
case key.Matches(msg, m.KeyMap.GotoTop):
m.GotoTop()
case key.Matches(msg, m.KeyMap.GotoBottom):
m.GotoBottom()
}
}
return m, tea.Batch(cmds...)
}
// Focused returns the focus state of the table.
func (m Model) Focused() bool {
return m.focus
}
// Focus focusses the table, allowing the user to move around the rows and
// interact.
func (m *Model) Focus() {
m.focus = true
m.UpdateViewport()
}
// Blur blurs the table, preventing selection or movement.
func (m *Model) Blur() {
m.focus = false
m.UpdateViewport()
}
// View renders the component.
func (m Model) View() string {
return m.headersView() + "\n" + m.viewport.View()
}
// UpdateViewport updates the list content based on the previously defined
// columns and rows.
func (m *Model) UpdateViewport() {
renderedRows := make([]string, 0, len(m.rows))
for i := range m.rows {
renderedRows = append(renderedRows, m.renderRow(i))
}
m.viewport.SetContent(
lipgloss.JoinVertical(lipgloss.Left, renderedRows...),
)
}
// SelectedRow returns the selected row.
// You can cast it to your own implementation.
func (m Model) SelectedRow() Row {
return m.rows[m.cursor]
}
// SetRows set a new rows state.
func (m *Model) SetRows(r []Row) {
m.rows = r
m.UpdateViewport()
}
// SetWidth sets the width of the viewport of the table.
func (m *Model) SetWidth(w int) {
m.viewport.Width = w
m.UpdateViewport()
}
// SetHeight sets the height of the viewport of the table.
func (m *Model) SetHeight(h int) {
m.viewport.Height = h
m.UpdateViewport()
}
// Height returns the viewport height of the table.
func (m Model) Height() int {
return m.viewport.Height
}
// Width returns the viewport width of the table.
func (m Model) Width() int {
return m.viewport.Width
}
// Cursor returns the index of the selected row.
func (m Model) Cursor() int {
return m.cursor
}
// SetCursor sets the cursor position in the table.
func (m *Model) SetCursor(n int) {
m.cursor = clamp(n, 0, len(m.rows)-1)
m.UpdateViewport()
}
// MoveUp moves the selection up by any number of row.
// It can not go above the first row.
func (m *Model) MoveUp(n int) {
m.cursor = clamp(m.cursor-n, 0, len(m.rows)-1)
m.UpdateViewport()
if m.cursor < m.viewport.YOffset {
m.viewport.SetYOffset(m.cursor)
}
}
// MoveDown moves the selection down by any number of row.
// It can not go below the last row.
func (m *Model) MoveDown(n int) {
m.cursor = clamp(m.cursor+n, 0, len(m.rows)-1)
m.UpdateViewport()
if m.cursor > (m.viewport.YOffset + (m.viewport.Height - 1)) {
m.viewport.SetYOffset(m.cursor - (m.viewport.Height - 1))
}
}
// GotoTop moves the selection to the first row.
func (m *Model) GotoTop() {
m.MoveUp(m.cursor)
}
// GotoBottom moves the selection to the last row.
func (m *Model) GotoBottom() {
m.MoveDown(len(m.rows))
}
// FromValues create the table rows from a simple string. It uses `\n` by
// default for getting all the rows and the given separator for the fields on
// each row.
func (m *Model) FromValues(value, separator string) {
rows := []Row{}
for _, line := range strings.Split(value, "\n") {
r := Row{}
for _, field := range strings.Split(line, separator) {
r = append(r, field)
}
rows = append(rows, r)
}
m.SetRows(rows)
}
func (m Model) headersView() string {
var s = make([]string, 0, len(m.cols))
for _, col := range m.cols {
style := lipgloss.NewStyle().Width(col.Width).MaxWidth(col.Width).Inline(true)
renderedCell := style.Render(runewidth.Truncate(col.Title, col.Width, "…"))
s = append(s, m.styles.Header.Render(renderedCell))
}
return lipgloss.JoinHorizontal(lipgloss.Left, s...)
}
func (m *Model) renderRow(rowID int) string {
var s = make([]string, 0, len(m.cols))
for i, value := range m.rows[rowID] {
style := lipgloss.NewStyle().Width(m.cols[i].Width).MaxWidth(m.cols[i].Width).Inline(true)
renderedCell := m.styles.Cell.Render(style.Render(runewidth.Truncate(value, m.cols[i].Width, "…")))
s = append(s, renderedCell)
}
row := lipgloss.JoinHorizontal(lipgloss.Left, s...)
if rowID == m.cursor {
return m.styles.Selected.Render(row)
}
return row
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
func min(a, b int) int {
if a < b {
return a
}
return b
}
func clamp(v, low, high int) int {
return min(max(v, low), high)
}

View File

@ -1,54 +0,0 @@
package table
import "testing"
func TestFromValues(t *testing.T) {
input := "foo1,bar1\nfoo2,bar2\nfoo3,bar3"
table := New(WithColumns([]Column{{Title: "Foo"}, {Title: "Bar"}}))
table.FromValues(input, ",")
if len(table.rows) != 3 {
t.Fatalf("expect table to have 3 rows but it has %d", len(table.rows))
}
expect := []Row{
{"foo1", "bar1"},
{"foo2", "bar2"},
{"foo3", "bar3"},
}
if !deepEqual(table.rows, expect) {
t.Fatal("table rows is not equals to the input")
}
}
func TestFromValuesWithTabSeparator(t *testing.T) {
input := "foo1.\tbar1\nfoo,bar,baz\tbar,2"
table := New(WithColumns([]Column{{Title: "Foo"}, {Title: "Bar"}}))
table.FromValues(input, "\t")
if len(table.rows) != 2 {
t.Fatalf("expect table to have 2 rows but it has %d", len(table.rows))
}
expect := []Row{
{"foo1.", "bar1"},
{"foo,bar,baz", "bar,2"},
}
if !deepEqual(table.rows, expect) {
t.Fatal("table rows is not equals to the input")
}
}
func deepEqual(a, b []Row) bool {
if len(a) != len(b) {
return false
}
for i, r := range a {
for j, f := range r {
if f != b[i][j] {
return false
}
}
}
return true
}

File diff suppressed because it is too large Load Diff

View File

@ -1,446 +0,0 @@
package textarea
import (
"strings"
"testing"
tea "github.com/charmbracelet/bubbletea"
)
func TestNew(t *testing.T) {
textarea := newTextArea()
view := textarea.View()
if !strings.Contains(view, ">") {
t.Log(view)
t.Error("Text area did not render the prompt")
}
if !strings.Contains(view, "World!") {
t.Log(view)
t.Error("Text area did not render the placeholder")
}
}
func TestInput(t *testing.T) {
textarea := newTextArea()
input := "foo"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
}
view := textarea.View()
if !strings.Contains(view, input) {
t.Log(view)
t.Error("Text area did not render the input")
}
if textarea.col != len(input) {
t.Log(view)
t.Error("Text area did not move the cursor to the correct position")
}
}
func TestSoftWrap(t *testing.T) {
textarea := newTextArea()
textarea.Prompt = ""
textarea.ShowLineNumbers = false
textarea.SetWidth(5)
textarea.SetHeight(5)
textarea.CharLimit = 60
textarea, _ = textarea.Update(nil)
input := "foo bar baz"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
}
view := textarea.View()
for _, word := range strings.Split(input, " ") {
if !strings.Contains(view, word) {
t.Log(view)
t.Error("Text area did not render the input")
}
}
// Due to the word wrapping, each word will be on a new line and the
// text area will look like this:
//
// > foo
// > bar
// > baz█
//
// However, due to soft-wrapping the column will still be at the end of the line.
if textarea.row != 0 || textarea.col != len(input) {
t.Log(view)
t.Error("Text area did not move the cursor to the correct position")
}
}
func TestCharLimit(t *testing.T) {
textarea := newTextArea()
// First input (foo bar) should be accepted as it will fall within the
// CharLimit. Second input (baz) should not appear in the input.
input := []string{"foo bar", "baz"}
textarea.CharLimit = len(input[0])
for _, k := range []rune(strings.Join(input, " ")) {
textarea, _ = textarea.Update(keyPress(k))
}
view := textarea.View()
if strings.Contains(view, input[1]) {
t.Log(view)
t.Error("Text area should not include input past the character limit")
}
}
func TestVerticalScrolling(t *testing.T) {
textarea := newTextArea()
textarea.Prompt = ""
textarea.ShowLineNumbers = false
textarea.SetHeight(1)
textarea.SetWidth(20)
textarea.CharLimit = 100
textarea, _ = textarea.Update(nil)
input := "This is a really long line that should wrap around the text area."
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
}
view := textarea.View()
// The view should contain the first "line" of the input.
if !strings.Contains(view, "This is a really") {
t.Log(view)
t.Error("Text area did not render the input")
}
// But we should be able to scroll to see the next line.
// Let's scroll down for each line to view the full input.
lines := []string{
"long line that",
"should wrap around",
"the text area.",
}
for _, line := range lines {
textarea.viewport.LineDown(1)
view = textarea.View()
if !strings.Contains(view, line) {
t.Log(view)
t.Error("Text area did not render the correct scrolled input")
}
}
}
func TestWordWrapOverflowing(t *testing.T) {
// An interesting edge case is when the user enters many words that fill up
// the text area and then goes back up and inserts a few words which causes
// a cascading wrap and causes an overflow of the last line.
//
// In this case, we should not let the user insert more words if, after the
// entire wrap is complete, the last line is overflowing.
textarea := newTextArea()
textarea.SetHeight(3)
textarea.SetWidth(20)
textarea.CharLimit = 500
textarea, _ = textarea.Update(nil)
input := "Testing Testing Testing Testing Testing Testing Testing Testing"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
textarea.View()
}
// We have essentially filled the text area with input.
// Let's see if we can cause wrapping to overflow the last line.
textarea.row = 0
textarea.col = 0
input = "Testing"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
textarea.View()
}
lastLineWidth := textarea.LineInfo().Width
if lastLineWidth > 20 {
t.Log(lastLineWidth)
t.Log(textarea.View())
t.Fail()
}
}
func TestValueSoftWrap(t *testing.T) {
textarea := newTextArea()
textarea.SetWidth(16)
textarea.SetHeight(10)
textarea.CharLimit = 500
textarea, _ = textarea.Update(nil)
input := "Testing Testing Testing Testing Testing Testing Testing Testing"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
textarea.View()
}
value := textarea.Value()
if value != input {
t.Log(value)
t.Log(input)
t.Fatal("The text area does not have the correct value")
}
}
func TestSetValue(t *testing.T) {
textarea := newTextArea()
textarea.SetValue(strings.Join([]string{"Foo", "Bar", "Baz"}, "\n"))
if textarea.row != 2 && textarea.col != 3 {
t.Log(textarea.row, textarea.col)
t.Fatal("Cursor Should be on row 2 column 3 after inserting 2 new lines")
}
value := textarea.Value()
if value != "Foo\nBar\nBaz" {
t.Fatal("Value should be Foo\nBar\nBaz")
}
// SetValue should reset text area
textarea.SetValue("Test")
value = textarea.Value()
if value != "Test" {
t.Log(value)
t.Fatal("Text area was not reset when SetValue() was called")
}
}
func TestInsertString(t *testing.T) {
textarea := newTextArea()
// Insert some text
input := "foo baz"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
}
// Put cursor in the middle of the text
textarea.col = 4
textarea.InsertString("bar ")
value := textarea.Value()
if value != "foo bar baz" {
t.Log(value)
t.Fatal("Expected insert string to insert bar between foo and baz")
}
}
func TestCanHandleEmoji(t *testing.T) {
textarea := newTextArea()
input := "🧋"
for _, k := range []rune(input) {
textarea, _ = textarea.Update(keyPress(k))
}
value := textarea.Value()
if value != input {
t.Log(value)
t.Fatal("Expected emoji to be inserted")
}
input = "🧋🧋🧋"
textarea.SetValue(input)
value = textarea.Value()
if value != input {
t.Log(value)
t.Fatal("Expected emoji to be inserted")
}
if textarea.col != 3 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the third character")
}
if charOffset := textarea.LineInfo().CharOffset; charOffset != 6 {
t.Log(charOffset)
t.Fatal("Expected cursor to be on the sixth character")
}
}
func TestVerticalNavigationKeepsCursorHorizontalPosition(t *testing.T) {
textarea := newTextArea()
textarea.SetWidth(20)
textarea.SetValue(strings.Join([]string{"你好你好", "Hello"}, "\n"))
textarea.row = 0
textarea.col = 2
// 你好|你好
// Hell|o
// 1234|
// Let's imagine our cursor is on the first line where the pipe is.
// We press the down arrow to get to the next line.
// The issue is that if we keep the cursor on the same column, the cursor will jump to after the `e`.
//
// 你好|你好
// He|llo
//
// But this is wrong because visually we were at the 4th character due to
// the first line containing double-width runes.
// We want to keep the cursor on the same visual column.
//
// 你好|你好
// Hell|o
//
// This test ensures that the cursor is kept on the same visual column by
// ensuring that the column offset goes from 2 -> 4.
lineInfo := textarea.LineInfo()
if lineInfo.CharOffset != 4 || lineInfo.ColumnOffset != 2 {
t.Log(lineInfo.CharOffset)
t.Log(lineInfo.ColumnOffset)
t.Fatal("Expected cursor to be on the fourth character because there two double width runes on the first line.")
}
downMsg := tea.KeyMsg{Type: tea.KeyDown, Alt: false, Runes: []rune{}}
textarea, _ = textarea.Update(downMsg)
lineInfo = textarea.LineInfo()
if lineInfo.CharOffset != 4 || lineInfo.ColumnOffset != 4 {
t.Log(lineInfo.CharOffset)
t.Log(lineInfo.ColumnOffset)
t.Fatal("Expected cursor to be on the fourth character because we came down from the first line.")
}
}
func TestVerticalNavigationShouldRememberPositionWhileTraversing(t *testing.T) {
textarea := newTextArea()
textarea.SetWidth(40)
// Let's imagine we have a text area with the following content:
//
// Hello
// World
// This is a long line.
//
// If we are at the end of the last line and go up, we should be at the end
// of the second line.
// And, if we go up again we should be at the end of the first line.
// But, if we go back down twice, we should be at the end of the last line
// again and not the fifth (length of second line) character of the last line.
//
// In other words, we should remember the last horizontal position while
// traversing vertically.
textarea.SetValue(strings.Join([]string{"Hello", "World", "This is a long line."}, "\n"))
// We are at the end of the last line.
if textarea.col != 20 || textarea.row != 2 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the 20th character of the last line")
}
// Let's go up.
upMsg := tea.KeyMsg{Type: tea.KeyUp, Alt: false, Runes: []rune{}}
textarea, _ = textarea.Update(upMsg)
// We should be at the end of the second line.
if textarea.col != 5 || textarea.row != 1 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the 5th character of the second line")
}
// And, again.
textarea, _ = textarea.Update(upMsg)
// We should be at the end of the first line.
if textarea.col != 5 || textarea.row != 0 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the 5th character of the first line")
}
// Let's go down, twice.
downMsg := tea.KeyMsg{Type: tea.KeyDown, Alt: false, Runes: []rune{}}
textarea, _ = textarea.Update(downMsg)
textarea, _ = textarea.Update(downMsg)
// We should be at the end of the last line.
if textarea.col != 20 || textarea.row != 2 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the 20th character of the last line")
}
// Now, for correct behavior, if we move right or left, we should forget
// (reset) the saved horizontal position. Since we assume the user wants to
// keep the cursor where it is horizontally. This is how most text areas
// work.
textarea, _ = textarea.Update(upMsg)
leftMsg := tea.KeyMsg{Type: tea.KeyLeft, Alt: false, Runes: []rune{}}
textarea, _ = textarea.Update(leftMsg)
if textarea.col != 4 || textarea.row != 1 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the 5th character of the second line")
}
// Going down now should keep us at the 4th column since we moved left and
// reset the horizontal position saved state.
textarea, _ = textarea.Update(downMsg)
if textarea.col != 4 || textarea.row != 2 {
t.Log(textarea.col)
t.Fatal("Expected cursor to be on the 4th character of the last line")
}
}
func TestRendersEndOfLineBuffer(t *testing.T) {
textarea := newTextArea()
textarea.ShowLineNumbers = true
textarea.SetWidth(20)
view := textarea.View()
if !strings.Contains(view, "~") {
t.Log(view)
t.Fatal("Expected to see a tilde at the end of the line")
}
}
func newTextArea() Model {
textarea := New()
textarea.Prompt = "> "
textarea.Placeholder = "Hello, World!"
textarea.Focus()
textarea, _ = textarea.Update(nil)
return textarea
}
func keyPress(key rune) tea.Msg {
return tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{key}, Alt: false}
}

View File

@ -5,98 +5,36 @@ import (
"time"
"unicode"
"github.com/atotto/clipboard"
"github.com/charmbracelet/bubbles/cursor"
"github.com/charmbracelet/bubbles/key"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
rw "github.com/mattn/go-runewidth"
"github.com/muesli/termenv"
)
// Internal messages for clipboard operations.
type pasteMsg string
type pasteErrMsg struct{ error }
// EchoMode sets the input behavior of the text input field.
type EchoMode int
const (
// EchoNormal displays text as is. This is the default behavior.
EchoNormal EchoMode = iota
// EchoPassword displays the EchoCharacter mask instead of actual
// characters. This is commonly used for password fields.
EchoPassword
// EchoNone displays nothing as characters are entered. This is commonly
// seen for password fields on the command line.
EchoNone
// EchoOnEdit.
defaultBlinkSpeed = time.Millisecond * 600
)
// ValidateFunc is a function that returns an error if the input is invalid.
type ValidateFunc func(string) error
var (
// color is a helper for returning colors
color func(s string) termenv.Color = termenv.ColorProfile().Color
)
// KeyMap is the key bindings for different actions within the textinput.
type KeyMap struct {
CharacterForward key.Binding
CharacterBackward key.Binding
WordForward key.Binding
WordBackward key.Binding
DeleteWordBackward key.Binding
DeleteWordForward key.Binding
DeleteAfterCursor key.Binding
DeleteBeforeCursor key.Binding
DeleteCharacterBackward key.Binding
DeleteCharacterForward key.Binding
LineStart key.Binding
LineEnd key.Binding
Paste key.Binding
}
// ErrMsg indicates there's been an error. We don't handle errors in the this
// package; we're expecting errors to be handle in the program that implements
// this text input.
type ErrMsg error
// DefaultKeyMap is the default set of key bindings for navigating and acting
// upon the textinput.
var DefaultKeyMap = KeyMap{
CharacterForward: key.NewBinding(key.WithKeys("right", "ctrl+f")),
CharacterBackward: key.NewBinding(key.WithKeys("left", "ctrl+b")),
WordForward: key.NewBinding(key.WithKeys("alt+right", "alt+f")),
WordBackward: key.NewBinding(key.WithKeys("alt+left", "alt+b")),
DeleteWordBackward: key.NewBinding(key.WithKeys("alt+backspace", "ctrl+w")),
DeleteWordForward: key.NewBinding(key.WithKeys("alte+delete", "alt+d")),
DeleteAfterCursor: key.NewBinding(key.WithKeys("ctrl+k")),
DeleteBeforeCursor: key.NewBinding(key.WithKeys("ctrl+u")),
DeleteCharacterBackward: key.NewBinding(key.WithKeys("backspace", "ctrl+h")),
DeleteCharacterForward: key.NewBinding(key.WithKeys("delete", "ctrl+d")),
LineStart: key.NewBinding(key.WithKeys("home", "ctrl+a")),
LineEnd: key.NewBinding(key.WithKeys("end", "ctrl+e")),
Paste: key.NewBinding(key.WithKeys("ctrl+v")),
}
// Model is the Bubble Tea model for this text input element.
// Model is the Tea model for this text input element.
type Model struct {
Err error
// General settings.
Prompt string
Placeholder string
EchoMode EchoMode
EchoCharacter rune
Cursor cursor.Model
// Deprecated: use cursor.BlinkSpeed instead.
// This is unused and will be removed in the future.
BlinkSpeed time.Duration
// Styles. These will be applied as inline styles.
//
// For an introduction to styling with Lip Gloss see:
// https://github.com/charmbracelet/lipgloss
PromptStyle lipgloss.Style
TextStyle lipgloss.Style
BackgroundStyle lipgloss.Style
PlaceholderStyle lipgloss.Style
CursorStyle lipgloss.Style
Err error
Prompt string
Cursor string
BlinkSpeed time.Duration
Placeholder string
TextColor string
BackgroundColor string
PlaceholderColor string
CursorColor string
// CharLimit is the maximum amount of characters this input element will
// accept. If 0 or less, there's no limit.
@ -107,72 +45,35 @@ type Model struct {
// viewport. If 0 or less this setting is ignored.
Width int
// KeyMap encodes the keybindings recognized by the widget.
KeyMap KeyMap
// Underlying text value.
// Underlying text value
value []rune
// focus indicates whether user input focus should be on this input
// component. When false, ignore keyboard input and hide the cursor.
// Focus indicates whether user input focus should be on this input
// component. When false, don't blink and ignore keyboard input.
focus bool
// Cursor position.
// Cursor blink state
blink bool
// Cursor position
pos int
// Used to emulate a viewport when width is set and the content is
// overflowing.
// overflowing
offset int
offsetRight int
// Validate is a function that checks whether or not the text within the
// input is valid. If it is not valid, the `Err` field will be set to the
// error returned by the function. If the function is not defined, all
// input is considered valid.
Validate ValidateFunc
}
// New creates a new model with default settings.
func New() Model {
return Model{
Prompt: "> ",
EchoCharacter: '*',
CharLimit: 0,
PlaceholderStyle: lipgloss.NewStyle().Foreground(lipgloss.Color("240")),
Cursor: cursor.New(),
KeyMap: DefaultKeyMap,
value: nil,
focus: false,
pos: 0,
}
}
// NewModel creates a new model with default settings.
//
// Deprecated. Use New instead.
var NewModel = New
// SetValue sets the value of the text input.
func (m *Model) SetValue(s string) {
if m.Validate != nil {
if err := m.Validate(s); err != nil {
m.Err = err
return
}
}
empty := len(m.value) == 0
m.Err = nil
runes := []rune(s)
if m.CharLimit > 0 && len(runes) > m.CharLimit {
m.value = runes[:m.CharLimit]
} else {
m.value = runes
}
if (m.pos == 0 && empty) || m.pos > len(m.value) {
m.SetCursor(len(m.value))
if m.pos > len(m.value) {
m.pos = len(m.value)
}
m.handleOverflow()
}
@ -182,26 +83,23 @@ func (m Model) Value() string {
return string(m.value)
}
// Position returns the cursor position.
func (m Model) Position() int {
return m.pos
}
// SetCursor moves the cursor to the given position. If the position is
// out of bounds the cursor will be moved to the start or end accordingly.
// Cursor start moves the cursor to the given position. If the position is out
// of bounds the cursor will be moved to the start or end accordingly.
func (m *Model) SetCursor(pos int) {
m.pos = clamp(pos, 0, len(m.value))
m.handleOverflow()
}
// CursorStart moves the cursor to the start of the input field.
// CursorStart moves the cursor to the start of the field.
func (m *Model) CursorStart() {
m.SetCursor(0)
m.pos = 0
m.handleOverflow()
}
// CursorEnd moves the cursor to the end of the input field.
// CursorEnd moves the cursor to the end of the field.
func (m *Model) CursorEnd() {
m.SetCursor(len(m.value))
m.pos = len(m.value)
m.handleOverflow()
}
// Focused returns the focus state on the model.
@ -209,75 +107,23 @@ func (m Model) Focused() bool {
return m.focus
}
// Focus sets the focus state on the model. When the model is in focus it can
// receive keyboard input and the cursor will be shown.
func (m *Model) Focus() tea.Cmd {
// Focus sets the focus state on the model.
func (m *Model) Focus() {
m.focus = true
return m.Cursor.Focus()
m.blink = false
}
// Blur removes the focus state on the model. When the model is blurred it can
// not receive keyboard input and the cursor will be hidden.
// Blur removes the focus state on the model.
func (m *Model) Blur() {
m.focus = false
m.Cursor.Blur()
m.blink = true
}
// Reset sets the input to its default state with no input.
func (m *Model) Reset() {
m.value = nil
m.SetCursor(0)
}
// handle a clipboard paste event, if supported.
func (m *Model) handlePaste(v string) {
paste := []rune(v)
var availSpace int
if m.CharLimit > 0 {
availSpace = m.CharLimit - len(m.value)
}
// If the char limit's been reached cancel
if m.CharLimit > 0 && availSpace <= 0 {
return
}
// If there's not enough space to paste the whole thing cut the pasted
// runes down so they'll fit
if m.CharLimit > 0 && availSpace < len(paste) {
paste = paste[:len(paste)-availSpace]
}
// Stuff before and after the cursor
head := m.value[:m.pos]
tailSrc := m.value[m.pos:]
tail := make([]rune, len(tailSrc))
copy(tail, tailSrc)
oldPos := m.pos
// Insert pasted runes
for _, r := range paste {
head = append(head, r)
m.pos++
if m.CharLimit > 0 {
availSpace--
if availSpace <= 0 {
break
}
}
}
// Put it all back together
value := append(head, tail...)
m.SetValue(string(value))
if m.Err != nil {
m.pos = oldPos
}
m.SetCursor(m.pos)
m.pos = 0
m.blink = false
}
// If a max width is defined, perform some logic to treat the visible area
@ -293,6 +139,7 @@ func (m *Model) handleOverflow() {
m.offsetRight = min(m.offsetRight, len(m.value))
if m.pos < m.offset {
m.offset = m.pos
w := 0
@ -307,7 +154,9 @@ func (m *Model) handleOverflow() {
}
m.offsetRight = m.offset + i
} else if m.pos >= m.offsetRight {
m.offsetRight = m.pos
w := 0
@ -322,125 +171,40 @@ func (m *Model) handleOverflow() {
}
m.offset = m.offsetRight - (len(runes) - 1 - i)
}
}
// deleteBeforeCursor deletes all text before the cursor.
func (m *Model) deleteBeforeCursor() {
m.value = m.value[m.pos:]
m.offset = 0
m.SetCursor(0)
// colorText colorizes a given string according to the TextColor value of the
// model.
func (m *Model) colorText(s string) string {
return termenv.
String(s).
Foreground(color(m.TextColor)).
Background(color(m.BackgroundColor)).
String()
}
// deleteAfterCursor deletes all text after the cursor. If input is masked
// delete everything after the cursor so as not to reveal word breaks in the
// masked input.
func (m *Model) deleteAfterCursor() {
m.value = m.value[:m.pos]
m.SetCursor(len(m.value))
// colorPlaceholder colorizes a given string according to the TextColor value
// of the model.
func (m *Model) colorPlaceholder(s string) string {
return termenv.
String(s).
Foreground(color(m.PlaceholderColor)).
Background(color(m.BackgroundColor)).
String()
}
// deleteWordBackward deletes the word left to the cursor.
func (m *Model) deleteWordBackward() {
func (m *Model) wordLeft() {
if m.pos == 0 || len(m.value) == 0 {
return
}
if m.EchoMode != EchoNormal {
m.deleteBeforeCursor()
return
}
// Linter note: it's critical that we acquire the initial cursor position
// here prior to altering it via SetCursor() below. As such, moving this
// call into the corresponding if clause does not apply here.
oldPos := m.pos //nolint:ifshort
m.SetCursor(m.pos - 1)
for unicode.IsSpace(m.value[m.pos]) {
if m.pos <= 0 {
break
}
// ignore series of whitespace before cursor
m.SetCursor(m.pos - 1)
}
for m.pos > 0 {
if !unicode.IsSpace(m.value[m.pos]) {
m.SetCursor(m.pos - 1)
} else {
if m.pos > 0 {
// keep the previous space
m.SetCursor(m.pos + 1)
}
break
}
}
if oldPos > len(m.value) {
m.value = m.value[:m.pos]
} else {
m.value = append(m.value[:m.pos], m.value[oldPos:]...)
}
}
// deleteWordForward deletes the word right to the cursor If input is masked
// delete everything after the cursor so as not to reveal word breaks in the
// masked input.
func (m *Model) deleteWordForward() {
if m.pos >= len(m.value) || len(m.value) == 0 {
return
}
if m.EchoMode != EchoNormal {
m.deleteAfterCursor()
return
}
oldPos := m.pos
m.SetCursor(m.pos + 1)
for unicode.IsSpace(m.value[m.pos]) {
// ignore series of whitespace after cursor
m.SetCursor(m.pos + 1)
if m.pos >= len(m.value) {
break
}
}
for m.pos < len(m.value) {
if !unicode.IsSpace(m.value[m.pos]) {
m.SetCursor(m.pos + 1)
} else {
break
}
}
if m.pos > len(m.value) {
m.value = m.value[:oldPos]
} else {
m.value = append(m.value[:oldPos], m.value[m.pos:]...)
}
m.SetCursor(oldPos)
}
// wordBackward moves the cursor one word to the left. If input is masked, move
// input to the start so as not to reveal word breaks in the masked input.
func (m *Model) wordBackward() {
if m.pos == 0 || len(m.value) == 0 {
return
}
if m.EchoMode != EchoNormal {
m.CursorStart()
return
}
i := m.pos - 1
for i >= 0 {
if unicode.IsSpace(m.value[i]) {
m.SetCursor(m.pos - 1)
m.pos--
i--
} else {
break
@ -449,7 +213,7 @@ func (m *Model) wordBackward() {
for i >= 0 {
if !unicode.IsSpace(m.value[i]) {
m.SetCursor(m.pos - 1)
m.pos--
i--
} else {
break
@ -457,22 +221,16 @@ func (m *Model) wordBackward() {
}
}
// wordForward moves the cursor one word to the right. If the input is masked,
// move input to the end so as not to reveal word breaks in the masked input.
func (m *Model) wordForward() {
func (m *Model) wordRight() {
if m.pos >= len(m.value) || len(m.value) == 0 {
return
}
if m.EchoMode != EchoNormal {
m.CursorEnd()
return
}
i := m.pos
for i < len(m.value) {
if unicode.IsSpace(m.value[i]) {
m.SetCursor(m.pos + 1)
if unicode.IsSpace(rune(m.value[i])) {
m.pos++
i++
} else {
break
@ -480,8 +238,8 @@ func (m *Model) wordForward() {
}
for i < len(m.value) {
if !unicode.IsSpace(m.value[i]) {
m.SetCursor(m.pos + 1)
if !unicode.IsSpace(rune(m.value[i])) {
m.pos++
i++
} else {
break
@ -489,182 +247,203 @@ func (m *Model) wordForward() {
}
}
func (m Model) echoTransform(v string) string {
switch m.EchoMode {
case EchoPassword:
return strings.Repeat(string(m.EchoCharacter), rw.StringWidth(v))
case EchoNone:
return ""
// BlinkMsg is sent when the cursor should alternate it's blinking state.
type BlinkMsg struct{}
default:
return v
// NewModel creates a new model with default settings.
func NewModel() Model {
return Model{
Prompt: "> ",
BlinkSpeed: defaultBlinkSpeed,
Placeholder: "",
TextColor: "",
PlaceholderColor: "240",
CursorColor: "",
CharLimit: 0,
value: nil,
focus: false,
blink: true,
pos: 0,
}
}
// Update is the Bubble Tea update loop.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
// Update is the Tea update loop.
func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
if !m.focus {
m.blink = true
return m, nil
}
// Let's remember where the position of the cursor currently is so that if
// the cursor position changes, we can reset the blink.
oldPos := m.pos //nolint
switch msg := msg.(type) {
case tea.KeyMsg:
switch {
case key.Matches(msg, m.KeyMap.DeleteWordBackward):
m.Err = nil
m.deleteWordBackward()
case key.Matches(msg, m.KeyMap.DeleteCharacterBackward):
m.Err = nil
switch msg.Type {
case tea.KeyBackspace:
fallthrough
case tea.KeyDelete:
if len(m.value) > 0 {
m.value = append(m.value[:max(0, m.pos-1)], m.value[m.pos:]...)
if m.pos > 0 {
m.SetCursor(m.pos - 1)
}
m.value = append(m.value[:m.pos-1], m.value[m.pos:]...)
m.pos--
}
case tea.KeyLeft:
if msg.Alt { // alt+left arrow, back one word
m.wordLeft()
break
}
case key.Matches(msg, m.KeyMap.WordBackward):
m.wordBackward()
case key.Matches(msg, m.KeyMap.CharacterBackward):
if m.pos > 0 {
m.SetCursor(m.pos - 1)
m.pos--
}
case tea.KeyRight:
if msg.Alt { // alt+right arrow, forward one word
m.wordRight()
break
}
case key.Matches(msg, m.KeyMap.WordForward):
m.wordForward()
case key.Matches(msg, m.KeyMap.CharacterForward):
if m.pos < len(m.value) {
m.SetCursor(m.pos + 1)
m.pos++
}
case key.Matches(msg, m.KeyMap.DeleteWordBackward):
m.deleteWordBackward()
case key.Matches(msg, m.KeyMap.LineStart):
case tea.KeyCtrlF: // ^F, forward one character
fallthrough
case tea.KeyCtrlB: // ^B, back one charcter
fallthrough
case tea.KeyCtrlA: // ^A, go to beginning
m.CursorStart()
case key.Matches(msg, m.KeyMap.DeleteCharacterForward):
case tea.KeyCtrlD: // ^D, delete char under cursor
if len(m.value) > 0 && m.pos < len(m.value) {
m.value = append(m.value[:m.pos], m.value[m.pos+1:]...)
}
case key.Matches(msg, m.KeyMap.LineEnd):
case tea.KeyCtrlE: // ^E, go to end
m.CursorEnd()
case key.Matches(msg, m.KeyMap.DeleteAfterCursor):
m.deleteAfterCursor()
case key.Matches(msg, m.KeyMap.DeleteBeforeCursor):
m.deleteBeforeCursor()
case key.Matches(msg, m.KeyMap.Paste):
return m, Paste
case key.Matches(msg, m.KeyMap.DeleteWordForward):
m.deleteWordForward()
default:
case tea.KeyCtrlK: // ^K, kill text after cursor
m.value = m.value[:m.pos]
m.pos = len(m.value)
case tea.KeyCtrlU: // ^U, kill text before cursor
m.value = m.value[m.pos:]
m.pos = 0
m.offset = 0
case tea.KeyRune: // input a regular character
if msg.Alt {
if msg.Rune == 'b' { // alt+b, back one word
m.wordLeft()
break
}
if msg.Rune == 'f' { // alt+f, forward one word
m.wordRight()
break
}
}
// Input a regular character
if m.CharLimit <= 0 || len(m.value) < m.CharLimit {
runes := msg.Runes
value := make([]rune, len(m.value))
copy(value, m.value)
value = append(value[:m.pos], append(runes, value[m.pos:]...)...)
m.SetValue(string(value))
if m.Err == nil {
m.SetCursor(m.pos + len(runes))
}
m.value = append(m.value[:m.pos], append([]rune{msg.Rune}, m.value[m.pos:]...)...)
m.pos++
}
}
case pasteMsg:
m.handlePaste(string(msg))
case pasteErrMsg:
case ErrMsg:
m.Err = msg
}
var cmds []tea.Cmd
var cmd tea.Cmd
m.Cursor, cmd = m.Cursor.Update(msg)
cmds = append(cmds, cmd)
if oldPos != m.pos {
m.Cursor.Blink = false
cmds = append(cmds, m.Cursor.BlinkCmd())
case BlinkMsg:
m.blink = !m.blink
return m, Blink(m)
}
m.handleOverflow()
return m, tea.Batch(cmds...)
return m, nil
}
// View renders the textinput in its current state.
func (m Model) View() string {
// Placeholder text
if len(m.value) == 0 && m.Placeholder != "" {
return m.placeholderView()
func View(model tea.Model) string {
m, ok := model.(Model)
if !ok {
return "could not perform assertion on model"
}
styleText := m.TextStyle.Inline(true).Render
// Placeholder text
if len(m.value) == 0 && m.Placeholder != "" {
return placeholderView(m)
}
value := m.value[m.offset:m.offsetRight]
pos := max(0, m.pos-m.offset)
v := styleText(m.echoTransform(string(value[:pos])))
pos := m.pos - m.offset
v := m.colorText(string(value[:pos]))
if pos < len(value) {
char := m.echoTransform(string(value[pos]))
m.Cursor.SetChar(char)
v += m.Cursor.View() // cursor and text under it
v += styleText(m.echoTransform(string(value[pos+1:]))) // text after cursor
v += cursorView(string(value[pos]), m) // cursor and text under it
v += m.colorText(string(value[pos+1:])) // text after cursor
} else {
m.Cursor.SetChar(" ")
v += m.Cursor.View()
v += cursorView(" ", m)
}
// If a max width and background color were set fill the empty spaces with
// the background color.
valWidth := rw.StringWidth(string(value))
if m.Width > 0 && valWidth <= m.Width {
if m.Width > 0 && len(m.BackgroundColor) > 0 && valWidth <= m.Width {
padding := max(0, m.Width-valWidth)
if valWidth+padding <= m.Width && pos < len(value) {
padding++
}
v += styleText(strings.Repeat(" ", padding))
v += strings.Repeat(
termenv.String(" ").Background(color(m.BackgroundColor)).String(),
padding,
)
}
return m.PromptStyle.Render(m.Prompt) + v
return m.Prompt + v
}
// placeholderView returns the prompt and placeholder view, if any.
func (m Model) placeholderView() string {
// placeholderView
func placeholderView(m Model) string {
var (
v string
p = m.Placeholder
style = m.PlaceholderStyle.Inline(true).Render
v string
p = m.Placeholder
)
m.Cursor.TextStyle = m.PlaceholderStyle
m.Cursor.SetChar(p[:1])
v += m.Cursor.View()
// Cursor
if m.blink && m.PlaceholderColor != "" {
v += cursorView(
m.colorPlaceholder(p[:1]),
m,
)
} else {
v += cursorView(p[:1], m)
}
// The rest of the placeholder text
v += style(p[1:])
v += m.colorPlaceholder(p[1:])
return m.PromptStyle.Render(m.Prompt) + v
return m.Prompt + v
}
// Blink is a command used to initialize cursor blinking.
func Blink() tea.Msg {
return cursor.Blink()
}
// Paste is a command for pasting from the clipboard into the text input.
func Paste() tea.Msg {
str, err := clipboard.ReadAll()
if err != nil {
return pasteErrMsg{err}
// cursorView styles the cursor.
func cursorView(s string, m Model) string {
if m.blink {
if m.TextColor != "" || m.BackgroundColor != "" {
return termenv.String(s).
Foreground(color(m.TextColor)).
Background(color(m.BackgroundColor)).
String()
}
return s
}
return termenv.String(s).
Foreground(color(m.CursorColor)).
Background(color(m.BackgroundColor)).
Reverse().
String()
}
// Blink is a command used to time the cursor blinking.
func Blink(model Model) tea.Cmd {
return func() tea.Msg {
time.Sleep(model.BlinkSpeed)
return BlinkMsg{}
}
return pasteMsg(str)
}
func clamp(v, low, high int) int {
if high < low {
low, high = high, low
}
return min(high, max(low, v))
}
@ -681,31 +460,3 @@ func max(a, b int) int {
}
return b
}
// Deprecated.
// Deprecated: use cursor.Mode.
type CursorMode int
const (
// Deprecated: use cursor.CursorBlink.
CursorBlink = CursorMode(cursor.CursorBlink)
// Deprecated: use cursor.CursorStatic.
CursorStatic = CursorMode(cursor.CursorStatic)
// Deprecated: use cursor.CursorHide.
CursorHide = CursorMode(cursor.CursorHide)
)
func (c CursorMode) String() string {
return cursor.Mode(c).String()
}
// Deprecated: use cursor.Mode().
func (m Model) CursorMode() CursorMode {
return CursorMode(m.Cursor.Mode())
}
// Deprecated: use cursor.SetMode().
func (m *Model) SetCursorMode(mode CursorMode) tea.Cmd {
return m.Cursor.SetMode(cursor.Mode(mode))
}

View File

@ -1,192 +0,0 @@
// Package timer provides a simple timeout component.
package timer
import (
"sync"
"time"
tea "github.com/charmbracelet/bubbletea"
)
var (
lastID int
idMtx sync.Mutex
)
func nextID() int {
idMtx.Lock()
defer idMtx.Unlock()
lastID++
return lastID
}
// Authors note with regard to start and stop commands:
//
// Technically speaking, sending commands to start and stop the timer in this
// case is extraneous. To stop the timer we'd just need to set the 'running'
// property on the model to false which cause logic in the update function to
// stop responding to TickMsgs. To start the model we'd set 'running' to true
// and fire off a TickMsg. Helper functions would look like:
//
// func (m *model) Start() tea.Cmd
// func (m *model) Stop()
//
// The danger with this approach, however, is that order of operations becomes
// important with helper functions like the above. Consider the following:
//
// // Would not work
// return m, m.timer.Start()
//
// // Would work
// cmd := m.timer.start()
// return m, cmd
//
// Thus, because of potential pitfalls like the ones above, we've introduced
// the extraneous StartStopMsg to simplify the mental model when using this
// package. Bear in mind that the practice of sending commands to simply
// communicate with other parts of your application, such as in this package,
// is still not recommended.
// StartStopMsg is used to start and stop the timer.
type StartStopMsg struct {
ID int
running bool
}
// TickMsg is a message that is sent on every timer tick.
type TickMsg struct {
// ID is the identifier of the stopwatch that send the message. This makes
// it possible to determine which timer a tick belongs to when there
// are multiple timers running.
//
// Note, however, that a timer will reject ticks from other stopwatches, so
// it's safe to flow all TickMsgs through all timers and have them still
// behave appropriately.
ID int
// Timeout returns whether or not this tick is a timeout tick. You can
// alternatively listen for TimeoutMsg.
Timeout bool
}
// TimeoutMsg is a message that is sent once when the timer times out.
//
// It's a convenience message sent alongside a TickMsg with the Timeout value
// set to true.
type TimeoutMsg struct {
ID int
}
// Model of the timer component.
type Model struct {
// How long until the timer expires.
Timeout time.Duration
// How long to wait before every tick. Defaults to 1 second.
Interval time.Duration
id int
running bool
}
// NewWithInterval creates a new timer with the given timeout and tick interval.
func NewWithInterval(timeout, interval time.Duration) Model {
return Model{
Timeout: timeout,
Interval: interval,
running: true,
id: nextID(),
}
}
// New creates a new timer with the given timeout and default 1s interval.
func New(timeout time.Duration) Model {
return NewWithInterval(timeout, time.Second)
}
// ID returns the model's identifier. This can be used to determine if messages
// belong to this timer instance when there are multiple timers.
func (m Model) ID() int {
return m.id
}
// Running returns whether or not the timer is running. If the timer has timed
// out this will always return false.
func (m Model) Running() bool {
if m.Timedout() || !m.running {
return false
}
return true
}
// Timedout returns whether or not the timer has timed out.
func (m Model) Timedout() bool {
return m.Timeout <= 0
}
// Init starts the timer.
func (m Model) Init() tea.Cmd {
return m.tick()
}
// Update handles the timer tick.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
switch msg := msg.(type) {
case StartStopMsg:
if msg.ID != 0 && msg.ID != m.id {
return m, nil
}
m.running = msg.running
return m, m.tick()
case TickMsg:
if !m.Running() || (msg.ID != 0 && msg.ID != m.id) {
break
}
m.Timeout -= m.Interval
return m, tea.Batch(m.tick(), m.timedout())
}
return m, nil
}
// View of the timer component.
func (m Model) View() string {
return m.Timeout.String()
}
// Start resumes the timer. Has no effect if the timer has timed out.
func (m *Model) Start() tea.Cmd {
return m.startStop(true)
}
// Stop pauses the timer. Has no effect if the timer has timed out.
func (m *Model) Stop() tea.Cmd {
return m.startStop(false)
}
// Toggle stops the timer if it's running and starts it if it's stopped.
func (m *Model) Toggle() tea.Cmd {
return m.startStop(!m.Running())
}
func (m Model) tick() tea.Cmd {
return tea.Tick(m.Interval, func(_ time.Time) tea.Msg {
return TickMsg{ID: m.id, Timeout: m.Timedout()}
})
}
func (m Model) timedout() tea.Cmd {
if !m.Timedout() {
return nil
}
return func() tea.Msg {
return TimeoutMsg{ID: m.id}
}
}
func (m Model) startStop(v bool) tea.Cmd {
return func() tea.Msg {
return StartStopMsg{ID: m.id, running: v}
}
}

View File

@ -1,48 +0,0 @@
package viewport
import "github.com/charmbracelet/bubbles/key"
const spacebar = " "
// KeyMap defines the keybindings for the viewport. Note that you don't
// necessary need to use keybindings at all; the viewport can be controlled
// programmatically with methods like Model.LineDown(1). See the GoDocs for
// details.
type KeyMap struct {
PageDown key.Binding
PageUp key.Binding
HalfPageUp key.Binding
HalfPageDown key.Binding
Down key.Binding
Up key.Binding
}
// DefaultKeyMap returns a set of pager-like default keybindings.
func DefaultKeyMap() KeyMap {
return KeyMap{
PageDown: key.NewBinding(
key.WithKeys("pgdown", spacebar, "f"),
key.WithHelp("f/pgdn", "page down"),
),
PageUp: key.NewBinding(
key.WithKeys("pgup", "b"),
key.WithHelp("b/pgup", "page up"),
),
HalfPageUp: key.NewBinding(
key.WithKeys("u", "ctrl+u"),
key.WithHelp("u", "½ page up"),
),
HalfPageDown: key.NewBinding(
key.WithKeys("d", "ctrl+d"),
key.WithHelp("d", "½ page down"),
),
Up: key.NewBinding(
key.WithKeys("up", "k"),
key.WithHelp("↑/k", "up"),
),
Down: key.NewBinding(
key.WithKeys("down", "j"),
key.WithHelp("↓/j", "down"),
),
}
}

View File

@ -4,44 +4,26 @@ import (
"math"
"strings"
"github.com/charmbracelet/bubbles/key"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
// New returns a new model with the given width and height as well as default
// key mappings.
func New(width, height int) (m Model) {
m.Width = width
m.Height = height
m.setInitialValues()
return m
}
const (
spacebar = " "
)
// MODEL
// Model is the Bubble Tea model for this viewport element.
type Model struct {
Width int
Height int
KeyMap KeyMap
// Whether or not to respond to the mouse. The mouse must be enabled in
// Bubble Tea for this to work. For details, see the Bubble Tea docs.
MouseWheelEnabled bool
// The number of lines the mouse wheel will scroll. By default, this is 3.
MouseWheelDelta int
// YOffset is the vertical scroll position.
YOffset int
// YPosition is the position of the viewport in relation to the terminal
// window. It's used in high performance rendering only.
// window. It's used in high performance rendering.
YPosition int
// Style applies a lipgloss style to the viewport. Realistically, it's most
// useful for setting borders, margins and padding.
Style lipgloss.Style
// HighPerformanceRendering bypasses the normal Bubble Tea renderer to
// provide higher performance rendering. Most of the time the normal Bubble
// Tea rendering methods will suffice, but if you're passing content with
@ -52,20 +34,22 @@ type Model struct {
// which is usually via the alternate screen buffer.
HighPerformanceRendering bool
initialized bool
lines []string
lines []string
}
func (m *Model) setInitialValues() {
m.KeyMap = DefaultKeyMap()
m.MouseWheelEnabled = true
m.MouseWheelDelta = 3
m.initialized = true
// TODO: do we really need this?
func NewModel(width, height int) Model {
return Model{
Width: width,
Height: height,
}
}
// Init exists to satisfy the tea.Model interface for composability purposes.
func (m Model) Init() tea.Cmd {
return nil
// TODO: do we really need this?
func (m Model) SetSize(yPos, width, height int) {
m.YPosition = yPos
m.Width = width
m.Height = height
}
// AtTop returns whether or not the viewport is in the very top position.
@ -76,16 +60,16 @@ func (m Model) AtTop() bool {
// AtBottom returns whether or not the viewport is at or past the very bottom
// position.
func (m Model) AtBottom() bool {
return m.YOffset >= m.maxYOffset()
return m.YOffset >= len(m.lines)-1-m.Height
}
// PastBottom returns whether or not the viewport is scrolled beyond the last
// line. This can happen when adjusting the viewport height.
func (m Model) PastBottom() bool {
return m.YOffset > m.maxYOffset()
return m.YOffset > len(m.lines)-1-m.Height
}
// ScrollPercent returns the amount scrolled as a float between 0 and 1.
// Scrollpercent returns the amount scrolled as a float between 0 and 1.
func (m Model) ScrollPercent() float64 {
if m.Height >= len(m.lines) {
return 1.0
@ -100,46 +84,20 @@ func (m Model) ScrollPercent() float64 {
// SetContent set the pager's text content. For high performance rendering the
// Sync command should also be called.
func (m *Model) SetContent(s string) {
s = strings.ReplaceAll(s, "\r\n", "\n") // normalize line endings
s = strings.Replace(s, "\r\n", "\n", -1) // normalize line endings
m.lines = strings.Split(s, "\n")
if m.YOffset > len(m.lines)-1 {
m.GotoBottom()
}
}
// maxYOffset returns the maximum possible value of the y-offset based on the
// viewport's content and set height.
func (m Model) maxYOffset() int {
return max(0, len(m.lines)-m.Height)
}
// visibleLines returns the lines that should currently be visible in the
// viewport.
// Return the lines that should currently be visible in the viewport
func (m Model) visibleLines() (lines []string) {
if len(m.lines) > 0 {
top := max(0, m.YOffset)
bottom := clamp(m.YOffset+m.Height, top, len(m.lines))
bottom := min(len(m.lines), m.YOffset+m.Height)
lines = m.lines[top:bottom]
}
return lines
}
// scrollArea returns the scrollable boundaries for high performance rendering.
func (m Model) scrollArea() (top, bottom int) {
top = max(0, m.YPosition)
bottom = max(top, top+m.Height)
if top > 0 && bottom > top {
bottom--
}
return top, bottom
}
// SetYOffset sets the Y offset.
func (m *Model) SetYOffset(n int) {
m.YOffset = clamp(n, 0, m.maxYOffset())
}
// ViewDown moves the view down by the number of lines in the viewport.
// Basically, "page down".
func (m *Model) ViewDown() []string {
@ -147,7 +105,11 @@ func (m *Model) ViewDown() []string {
return nil
}
m.SetYOffset(m.YOffset + m.Height)
m.YOffset = min(
m.YOffset+m.Height, // target
len(m.lines)-1-m.Height, // fallback
)
return m.visibleLines()
}
@ -157,7 +119,11 @@ func (m *Model) ViewUp() []string {
return nil
}
m.SetYOffset(m.YOffset - m.Height)
m.YOffset = max(
m.YOffset-m.Height, // target
0, // fallback
)
return m.visibleLines()
}
@ -167,8 +133,18 @@ func (m *Model) HalfViewDown() (lines []string) {
return nil
}
m.SetYOffset(m.YOffset + m.Height/2)
return m.visibleLines()
m.YOffset = min(
m.YOffset+m.Height/2, // target
len(m.lines)-1-m.Height, // fallback
)
if len(m.lines) > 0 {
top := max(m.YOffset+m.Height/2, 0)
bottom := min(m.YOffset+m.Height, len(m.lines)-1)
lines = m.lines[top:bottom]
}
return lines
}
// HalfViewUp moves the view up by half the height of the viewport.
@ -177,8 +153,18 @@ func (m *Model) HalfViewUp() (lines []string) {
return nil
}
m.SetYOffset(m.YOffset - m.Height/2)
return m.visibleLines()
m.YOffset = max(
m.YOffset-m.Height/2, // target
0, // fallback
)
if len(m.lines) > 0 {
top := max(m.YOffset, 0)
bottom := min(m.YOffset+m.Height/2, len(m.lines)-1)
lines = m.lines[top:bottom]
}
return lines
}
// LineDown moves the view down by the given number of lines.
@ -190,8 +176,21 @@ func (m *Model) LineDown(n int) (lines []string) {
// Make sure the number of lines by which we're going to scroll isn't
// greater than the number of lines we actually have left before we reach
// the bottom.
m.SetYOffset(m.YOffset + n)
return m.visibleLines()
maxDelta := (len(m.lines) - 1) - (m.YOffset + m.Height) // number of lines - viewport bottom edge
n = min(n, maxDelta)
m.YOffset = min(
m.YOffset+n, // target
len(m.lines)-1-m.Height, // fallback
)
if len(m.lines) > 0 {
top := max(m.YOffset+m.Height-n, 0)
bottom := min(m.YOffset+m.Height, len(m.lines)-1)
lines = m.lines[top:bottom]
}
return lines
}
// LineUp moves the view down by the given number of lines. Returns the new
@ -203,18 +202,17 @@ func (m *Model) LineUp(n int) (lines []string) {
// Make sure the number of lines by which we're going to scroll isn't
// greater than the number of lines we are from the top.
m.SetYOffset(m.YOffset - n)
return m.visibleLines()
}
n = min(n, m.YOffset)
// TotalLineCount returns the total number of lines (both hidden and visible) within the viewport.
func (m Model) TotalLineCount() int {
return len(m.lines)
}
m.YOffset = max(m.YOffset-n, 0)
// VisibleLineCount returns the number of the visible lines within the viewport.
func (m Model) VisibleLineCount() int {
return len(m.visibleLines())
if len(m.lines) > 0 {
top := max(0, m.YOffset)
bottom := min(m.YOffset+n, len(m.lines)-1)
lines = m.lines[top:bottom]
}
return lines
}
// GotoTop sets the viewport to the top position.
@ -223,16 +221,32 @@ func (m *Model) GotoTop() (lines []string) {
return nil
}
m.SetYOffset(0)
return m.visibleLines()
m.YOffset = 0
if len(m.lines) > 0 {
top := m.YOffset
bottom := min(m.YOffset+m.Height, len(m.lines)-1)
lines = m.lines[top:bottom]
}
return lines
}
// GotoBottom sets the viewport to the bottom position.
// GotoTop sets the viewport to the bottom position.
func (m *Model) GotoBottom() (lines []string) {
m.SetYOffset(m.maxYOffset())
return m.visibleLines()
m.YOffset = max(len(m.lines)-1-m.Height, 0)
if len(m.lines) > 0 {
top := m.YOffset
bottom := max(len(m.lines)-1, 0)
lines = m.lines[top:bottom]
}
return lines
}
// COMMANDS
// Sync tells the renderer where the viewport will be located and requests
// a render of the current state of the viewport. It should be called for the
// first render and after a window resize.
@ -242,85 +256,92 @@ func Sync(m Model) tea.Cmd {
if len(m.lines) == 0 {
return nil
}
top, bottom := m.scrollArea()
return tea.SyncScrollArea(m.visibleLines(), top, bottom)
// TODO: we should probably use m.visibleLines() rather than these two
// expressions.
top := max(m.YOffset, 0)
bottom := min(m.YOffset+m.Height, len(m.lines)-1)
return tea.SyncScrollArea(
m.lines[top:bottom],
m.YPosition,
m.YPosition+m.Height,
)
}
// ViewDown is a high performance command that moves the viewport up by a given
// number of lines. Use Model.ViewDown to get the lines that should be rendered.
// numer of lines. Use Model.ViewDown to get the lines that should be rendered.
// For example:
//
// lines := model.ViewDown(1)
// cmd := ViewDown(m, lines)
// lines := model.ViewDown(1)
// cmd := ViewDown(m, lines)
//
func ViewDown(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
return nil
}
top, bottom := m.scrollArea()
return tea.ScrollDown(lines, top, bottom)
return tea.ScrollDown(lines, m.YPosition, m.YPosition+m.Height)
}
// ViewUp is a high performance command the moves the viewport down by a given
// number of lines height. Use Model.ViewUp to get the lines that should be
// number of lines height. Use Model.ViewDown to get the lines that should be
// rendered.
func ViewUp(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
return nil
}
top, bottom := m.scrollArea()
return tea.ScrollUp(lines, top, bottom)
return tea.ScrollUp(lines, m.YPosition, m.YPosition+m.Height)
}
// Update handles standard message-based viewport updates.
func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
var cmd tea.Cmd
m, cmd = m.updateAsModel(msg)
return m, cmd
}
// Author's note: this method has been broken out to make it easier to
// potentially transition Update to satisfy tea.Model.
func (m Model) updateAsModel(msg tea.Msg) (Model, tea.Cmd) {
if !m.initialized {
m.setInitialValues()
}
// UPDATE
// Update runs the update loop with default keybindings similar to popular
// pagers. To define your own keybindings use the methods on Model (i.e.
// Model.LineDown()) and define your own update function.
func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
var cmd tea.Cmd
switch msg := msg.(type) {
case tea.KeyMsg:
switch {
case key.Matches(msg, m.KeyMap.PageDown):
switch msg.String() {
// Down one page
case "pgdown", spacebar, "f":
lines := m.ViewDown()
if m.HighPerformanceRendering {
cmd = ViewDown(m, lines)
}
case key.Matches(msg, m.KeyMap.PageUp):
// Up one page
case "pgup", "b":
lines := m.ViewUp()
if m.HighPerformanceRendering {
cmd = ViewUp(m, lines)
}
case key.Matches(msg, m.KeyMap.HalfPageDown):
// Down half page
case "d":
lines := m.HalfViewDown()
if m.HighPerformanceRendering {
cmd = ViewDown(m, lines)
}
case key.Matches(msg, m.KeyMap.HalfPageUp):
// Up half page
case "u":
lines := m.HalfViewUp()
if m.HighPerformanceRendering {
cmd = ViewUp(m, lines)
}
case key.Matches(msg, m.KeyMap.Down):
// Down one line
case "down", "j":
lines := m.LineDown(1)
if m.HighPerformanceRendering {
cmd = ViewDown(m, lines)
}
case key.Matches(msg, m.KeyMap.Up):
// Up one line
case "up", "k":
lines := m.LineUp(1)
if m.HighPerformanceRendering {
cmd = ViewUp(m, lines)
@ -328,18 +349,16 @@ func (m Model) updateAsModel(msg tea.Msg) (Model, tea.Cmd) {
}
case tea.MouseMsg:
if !m.MouseWheelEnabled {
break
}
switch msg.Type {
switch msg.Button {
case tea.MouseWheelUp:
lines := m.LineUp(m.MouseWheelDelta)
lines := m.LineUp(3)
if m.HighPerformanceRendering {
cmd = ViewUp(m, lines)
}
case tea.MouseWheelDown:
lines := m.LineDown(m.MouseWheelDelta)
lines := m.LineDown(3)
if m.HighPerformanceRendering {
cmd = ViewDown(m, lines)
}
@ -349,41 +368,31 @@ func (m Model) updateAsModel(msg tea.Msg) (Model, tea.Cmd) {
return m, cmd
}
// VIEW
// View renders the viewport into a string.
func (m Model) View() string {
func View(m Model) string {
if m.HighPerformanceRendering {
// Just send newlines since we're going to be rendering the actual
// content separately. We still need to send something that equals the
// Just send newlines since we're doing to be rendering the actual
// content seprately. We still need send something that equals the
// height of this view so that the Bubble Tea standard renderer can
// position anything below this view properly.
return strings.Repeat("\n", max(0, m.Height-1))
return strings.Repeat("\n", m.Height-1)
}
w, h := m.Width, m.Height
if sw := m.Style.GetWidth(); sw != 0 {
w = min(w, sw)
lines := m.visibleLines()
// Fill empty space with newlines
extraLines := ""
if len(lines) < m.Height {
extraLines = strings.Repeat("\n", m.Height-len(lines))
}
if sh := m.Style.GetHeight(); sh != 0 {
h = min(h, sh)
}
contentWidth := w - m.Style.GetHorizontalFrameSize()
contentHeight := h - m.Style.GetVerticalFrameSize()
contents := lipgloss.NewStyle().
Height(contentHeight). // pad to height.
MaxHeight(contentHeight). // truncate height if taller.
MaxWidth(contentWidth). // truncate width.
Render(strings.Join(m.visibleLines(), "\n"))
return m.Style.Copy().
UnsetWidth().UnsetHeight(). // Style size already applied in contents.
Render(contents)
return strings.Join(lines, "\n") + extraLines
}
func clamp(v, low, high int) int {
if high < low {
low, high = high, low
}
return min(high, max(low, v))
}
// ETC
func min(a, b int) int {
if a < b {
@ -398,3 +407,7 @@ func max(a, b int) int {
}
return b
}
func clamp(val, low, high int) int {
return max(low, min(high, val))
}