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|
// Package app is glint's top-level Bubbletea model. It owns the active mode and
// routes messages to the editor, picker, or preview sub-models.
package app
import (
"fmt"
"math"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"glint/internal/config"
"glint/internal/editor"
"glint/internal/export"
"glint/internal/help"
"glint/internal/picker"
"glint/internal/preview"
"glint/internal/spell"
"glint/internal/theme"
"github.com/atotto/clipboard"
"github.com/charmbracelet/bubbles/textinput"
"github.com/charmbracelet/bubbles/viewport"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
// Mode selects which sub-view is active.
type Mode int
const (
ModeEditor Mode = iota
ModePicker
ModePreview
ModeSaveAs
ModeFind
ModeHelp
ModeGotoLine
ModeSpell
)
// pendingDiscard tracks which open-while-dirty action is awaiting confirmation.
type pendingDiscard int
const (
discardNone pendingDiscard = iota
discardPicker
discardDaily
discardNew
discardInbox
)
// Canvas layout: a centered, percentage-width text column with a little top air.
const (
canvasRatio = 0.75
canvasMax = 120
canvasMin = 24
canvasTopPad = 3
)
// App is the root model.
type App struct {
mode Mode
cfg config.Config
theme theme.Theme
editor *editor.Editor
preview *preview.Model
picker *picker.Model
saveInput textinput.Model // one-line "save as" prompt for unnamed buffers
findInput textinput.Model // one-line in-document find prompt (TASK-007)
gotoInput textinput.Model // one-line go-to-line prompt (TASK-012)
helpView viewport.Model // scrollable keybind overlay (TASK-011)
cursorMem map[string]editor.Position // per-file cursor memory, this session (TASK-012)
spell spellPopup // active misspelled-word popup (TASK-020)
path string
pickerRoot string // directory the current picker is browsing
saveDir string // where an unnamed buffer's save-as lands ("" → inbox)
status string
width int
height int
quitArmed bool // true after a dirty Ctrl+Q, awaiting confirm
pending pendingDiscard // armed open-while-dirty confirmation
mouseDragged bool // a drag motion happened since the last left-press (TASK-027)
}
// New builds an App with an empty editor.
func New(cfg config.Config) *App {
th := theme.Resolve(cfg.Theme)
ed := editor.New()
ed.SetTheme(th)
ti := textinput.New()
ti.Prompt = "save as › "
ti.Placeholder = "name…"
fi := textinput.New()
fi.Prompt = "find › "
fi.Placeholder = "text…"
gi := textinput.New()
gi.Prompt = "go to line › "
gi.Placeholder = "number…"
hv := viewport.New(0, 0)
hv.SetContent(help.Text)
a := &App{
mode: ModeEditor,
cfg: cfg,
theme: th,
editor: ed,
saveInput: ti,
findInput: fi,
gotoInput: gi,
helpView: hv,
cursorMem: map[string]editor.Position{},
}
a.preview = preview.New(a.glamourStyle())
a.preview.SetColors(previewColors(th))
a.initSpell()
return a
}
// initSpell loads the embedded dictionary and personal word list, then sets the
// session spellcheck toggle from config (auto/on enable it; off disables). A load
// failure leaves spellcheck inert rather than blocking startup.
func (a *App) initSpell() {
d, err := spell.Load()
if err != nil {
return
}
d.SetPersonalPath(config.DictPath())
_ = d.LoadPersonal()
a.editor.SetDict(d)
a.editor.SetSpell(!strings.EqualFold(a.cfg.Spellcheck, "off"))
}
// previewColors maps a theme to the glamour preview's color set.
func previewColors(th theme.Theme) preview.Colors {
return preview.Colors{
Background: string(th.Background),
Text: string(th.Text),
Heading: string(th.Heading),
Code: string(th.Code),
Link: string(th.Link),
}
}
// Load reads a file into the editor and switches to edit mode.
func (a *App) Load(path string) error {
data, err := os.ReadFile(path)
if err != nil {
return err
}
a.rememberCursor() // stash the outgoing file's position before switching
a.editor.SetContent(data)
a.editor.SetLanguage(path)
a.path = path
if pos, ok := a.cursorMem[path]; ok {
a.editor.SetCursor(pos) // restore where we left this file
}
a.mode = ModeEditor
a.status = path
return nil
}
// rememberCursor records the current file's cursor so reopening it this session
// returns to the same spot (TASK-012).
func (a *App) rememberCursor() {
if a.path != "" {
a.cursorMem[a.path] = a.editor.Cursor
}
}
// Start picks the initial view: an explicit path, today's daily note, or the
// picker when neither is given.
func (a *App) Start(path string, daily bool) error {
switch {
case path != "":
return a.Load(path)
case daily:
_, cmd := a.openDaily()
_ = cmd
return nil
default:
_, cmd := a.openPicker()
_ = cmd
return nil
}
}
// StartPreview opens path straight into the Glamour read view (glint -p), making
// glint a glow-style reader. Ctrl+P toggles back to the editor, which already
// holds the loaded file. With no path it falls back to the picker (TASK-019).
func (a *App) StartPreview(path string) error {
if path == "" {
return a.Start("", false)
}
if err := a.Load(path); err != nil {
return err
}
a.togglePreview() // render the buffer and switch to ModePreview
return nil
}
func (a *App) Init() tea.Cmd { return nil }
// Update routes messages. Global keys are handled first, then mode-specific.
func (a *App) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.WindowSizeMsg:
a.setSize(msg.Width, msg.Height)
return a, nil
case tea.KeyMsg:
return a.handleKey(msg)
case tea.MouseMsg:
return a.handleMouse(msg)
}
return a, nil
}
// handleMouse moves the cursor on a left click and scrolls on wheel events.
func (a *App) handleMouse(msg tea.MouseMsg) (tea.Model, tea.Cmd) {
const step = 3
if msg.Button == tea.MouseButtonLeft {
if a.mode != ModeEditor {
return a, nil
}
// The first editor visual row sits at screen row topPad; a click at
// screen row Y is that many rows into the viewport.
vi := a.editor.Scroll + msg.Y - a.topPad() + 1
col := msg.X - a.leftMargin()
switch msg.Action {
case tea.MouseActionPress:
// Anchor the cursor (dropping any prior selection) for a click or
// the start of a drag (TASK-027).
a.mouseDragged = false
a.editor.MouseAnchor(vi, col)
// A press on a checkbox glyph toggles it, undoably (TASK-023).
if a.editor.OnCheckboxBracket() {
a.editor.PushUndo()
a.editor.ToggleCheckbox()
}
case tea.MouseActionMotion:
// Dragging extends the selection from the press anchor (TASK-027).
a.mouseDragged = true
a.editor.MouseExtendTo(vi, col)
case tea.MouseActionRelease:
// A plain click (no drag) on a flagged word opens its suggestion
// popup; a drag selects instead, so only pop on a clean click.
if !a.mouseDragged {
a.openSpellPopupAt(a.editor.Cursor.Row, a.editor.Cursor.Col)
}
}
return a, nil
}
var delta int
switch msg.Button {
case tea.MouseButtonWheelUp:
delta = -step
case tea.MouseButtonWheelDown:
delta = step
default:
return a, nil
}
switch a.mode {
case ModePreview:
return a, a.preview.Update(msg) // the viewport handles wheel scrolling
case ModePicker:
key := tea.KeyMsg{Type: tea.KeyDown}
if delta < 0 {
key.Type = tea.KeyUp
}
for i := 0; i < step; i++ {
a.picker.Update(key)
}
default: // editor / save-as
a.editor.ScrollBy(delta)
}
return a, nil
}
func (a *App) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
// Drop leaked SGR mouse residue: a burst of wheel events can be split by
// the input parser and surface as a KeyRunes of `<64;68;26M…` text that
// would otherwise be typed into the buffer (TASK-029).
if msg.Type == tea.KeyRunes && looksLikeMouseLeak(string(msg.Runes)) {
return a, nil
}
// Any key other than a second Ctrl+Q disarms the quit confirmation.
if msg.Type != tea.KeyCtrlQ {
a.quitArmed = false
}
// Disarm pending-discard unless the same action is being re-pressed.
repressed := (msg.Type == tea.KeyCtrlF && a.pending == discardPicker) ||
(msg.Type == tea.KeyCtrlD && a.pending == discardDaily) ||
(msg.Type == tea.KeyCtrlN && a.pending == discardNew) ||
(msg.Type == tea.KeyCtrlB && a.pending == discardInbox)
if !repressed {
a.pending = discardNone
}
// Alt+; opens the spellcheck popup on a flagged word at the cursor.
if msg.Type == tea.KeyRunes && msg.Alt && string(msg.Runes) == ";" {
if a.openSpellPopup() {
return a, nil
}
a.status = "No misspelling at the cursor"
return a, nil
}
switch msg.Type {
case tea.KeyCtrlQ:
if a.editor.Dirty && !a.quitArmed {
a.quitArmed = true
a.status = "Unsaved changes — Ctrl+Q again to quit"
return a, nil
}
return a, tea.Quit
case tea.KeyCtrlS:
return a.save()
case tea.KeyCtrlE:
return a.exportPDF()
case tea.KeyCtrlP:
return a.togglePreview()
case tea.KeyCtrlT:
return a.cycleTheme()
case tea.KeyCtrlF:
if a.editor.Dirty && a.pending != discardPicker {
a.pending = discardPicker
a.status = "Unsaved changes — Ctrl+F again to discard"
return a, nil
}
a.pending = discardNone
return a.openPicker()
case tea.KeyCtrlD:
if a.editor.Dirty && a.pending != discardDaily {
a.pending = discardDaily
a.status = "Unsaved changes — Ctrl+D again to discard"
return a, nil
}
a.pending = discardNone
return a.openDaily()
case tea.KeyCtrlN:
return a.newFile(a.currentDir(), discardNew)
case tea.KeyCtrlB:
return a.newFile(a.cfg.InboxRoot(), discardInbox)
case tea.KeyCtrlZ:
if a.mode == ModeEditor {
a.editor.Undo()
}
return a, nil
case tea.KeyCtrlY:
if a.mode == ModeEditor {
a.editor.Redo()
}
return a, nil
case tea.KeyCtrlC:
return a.copySelection(false)
case tea.KeyCtrlX:
return a.copySelection(true)
case tea.KeyCtrlV:
return a.paste()
case tea.KeyCtrlG:
return a.openFind()
case tea.KeyCtrlL:
return a.openGoto()
case tea.KeyCtrlUnderscore: // Ctrl+/ toggles the help overlay
return a.toggleHelp()
case tea.KeyEsc:
if a.mode == ModeFind {
a.editor.ClearFind()
} else if a.editor.HasSelection() {
a.editor.ClearSelection()
}
a.mode = ModeEditor
return a, nil
}
switch a.mode {
case ModeEditor:
a.editor.HandleKey(msg)
case ModeSaveAs:
if msg.Type == tea.KeyEnter {
return a.saveAs()
}
var cmd tea.Cmd
a.saveInput, cmd = a.saveInput.Update(msg)
return a, cmd
case ModeFind:
return a.handleFindKey(msg)
case ModeGotoLine:
return a.handleGotoKey(msg)
case ModeSpell:
return a.handleSpellKey(msg)
case ModeHelp:
var cmd tea.Cmd
a.helpView, cmd = a.helpView.Update(msg) // arrows / PgUp / PgDn scroll
return a, cmd
case ModePreview:
return a, a.preview.Update(msg)
case ModePicker:
if msg.Type == tea.KeyEnter {
if sel := a.picker.Selected(); sel != "" {
if err := a.Load(sel); err != nil {
a.status = "Open failed: " + err.Error()
} else if ln := a.picker.SelectedLine(); ln > 0 {
a.editor.GotoLine(ln) // a content-search hit opens at the match (TASK-013)
}
}
return a, nil
}
return a, a.picker.Update(msg)
}
return a, nil
}
func (a *App) save() (tea.Model, tea.Cmd) {
if a.mode == ModeSaveAs {
return a.saveAs() // Ctrl+S confirms an open save-as prompt
}
if a.path == "" {
return a.promptSaveAs() // unnamed buffer → ask for a name
}
if err := os.WriteFile(a.path, a.editor.Bytes(), 0o644); err != nil {
a.status = "Save failed: " + err.Error()
return a, nil
}
a.editor.Dirty = false
a.status = "Saved " + a.path
return a, nil
}
// exportPDF renders the buffer to a self-contained, printable HTML document in
// the house style and opens it in the browser, where the user picks
// Print → Save as PDF (TASK-021). No external converter is required.
func (a *App) exportPDF() (tea.Model, tea.Cmd) {
md := string(a.editor.Bytes())
out, err := export.Write(a.path, md, a.exportOptions(a.path, md))
if err != nil {
a.status = "Export failed: " + err.Error()
return a, nil
}
if err := export.OpenInBrowser(out); err != nil {
// The file is written; only the auto-open failed. Tell the user where.
a.status = "Exported " + out + " (open it, then Print → Save as PDF)"
return a, nil
}
a.status = "Exported " + out + " — Print → Save as PDF in the browser"
return a, nil
}
// exportOptions builds the house-style export options for path/markdown, shared
// by the in-editor Ctrl+E and the headless `glint -e` command (TASK-030).
func (a *App) exportOptions(path, md string) export.Options {
return export.Options{
Title: export.Title(path, md),
Theme: export.MapTheme(a.theme.Name),
FontDisplay: a.cfg.FontDisplay,
FontBody: a.cfg.FontBody,
FontMono: a.cfg.FontMono,
Cover: true,
}
}
// writeExport renders the markdown file at path to a printable HTML document
// beside it and returns the output path, without opening a browser (TASK-030).
func (a *App) writeExport(path string) (string, error) {
data, err := os.ReadFile(path)
if err != nil {
return "", err
}
md := string(data)
return export.Write(path, md, a.exportOptions(path, md))
}
// ExportFile is the headless form of Ctrl+E for `glint -e <file>`: it renders
// path to house-style HTML, opens it in the browser (best-effort), and returns
// the output path (TASK-030).
func (a *App) ExportFile(path string) (string, error) {
out, err := a.writeExport(path)
if err != nil {
return "", err
}
_ = export.OpenInBrowser(out) // best-effort; the path is returned regardless
return out, nil
}
// promptSaveAs opens the one-line save-as prompt for an unnamed buffer.
func (a *App) promptSaveAs() (tea.Model, tea.Cmd) {
a.saveInput.SetValue("")
a.saveInput.Focus()
a.mode = ModeSaveAs
a.status = "Save as — type a name, Enter to save, Esc to cancel"
return a, nil
}
// saveAs writes the unnamed buffer to a name typed at the prompt, resolved under
// the inbox directory, then binds the buffer to that path.
func (a *App) saveAs() (tea.Model, tea.Cmd) {
root := a.saveDir
if root == "" {
root = a.cfg.InboxRoot()
}
p := picker.NewNotePath(root, a.saveInput.Value())
if p == "" {
a.status = "Type a name first"
return a, nil
}
if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
a.status = "Save dir failed: " + err.Error()
return a, nil
}
if err := os.WriteFile(p, a.editor.Bytes(), 0o644); err != nil {
a.status = "Save failed: " + err.Error()
return a, nil
}
a.path = p
a.editor.Dirty = false
a.mode = ModeEditor
a.status = "Saved " + p
return a, nil
}
// openFind opens the in-document find bar over the current editor buffer.
// Ctrl+F is already the file picker, so find is Ctrl+G.
func (a *App) openFind() (tea.Model, tea.Cmd) {
if a.mode != ModeEditor {
return a, nil
}
a.findInput.SetValue("")
a.findInput.Focus()
a.editor.ClearFind()
a.mode = ModeFind
a.status = "Find — type to search, Enter/↓ next, Shift+Tab/↑ prev, Esc to close"
return a, nil
}
// openGoto opens the go-to-line prompt over the current editor buffer (Ctrl+L).
func (a *App) openGoto() (tea.Model, tea.Cmd) {
if a.mode != ModeEditor {
return a, nil
}
a.gotoInput.SetValue("")
a.gotoInput.Focus()
a.mode = ModeGotoLine
a.status = "Go to line — type a number, Enter to jump, Esc to cancel"
return a, nil
}
// handleGotoKey drives the go-to-line prompt: Enter jumps to the typed line,
// other keys edit the (digits-only) query live.
func (a *App) handleGotoKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
if msg.Type == tea.KeyEnter {
if n, err := strconv.Atoi(strings.TrimSpace(a.gotoInput.Value())); err == nil {
a.editor.GotoLine(n)
}
a.mode = ModeEditor
a.status = ""
return a, nil
}
// Only accept digits so the prompt stays a line number.
if msg.Type == tea.KeyRunes {
for _, r := range msg.Runes {
if r < '0' || r > '9' {
return a, nil
}
}
}
var cmd tea.Cmd
a.gotoInput, cmd = a.gotoInput.Update(msg)
return a, cmd
}
// handleFindKey drives the find bar: Enter/Down cycle to the next match,
// Shift+Tab/Up to the previous, and any other key edits the query live.
func (a *App) handleFindKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
switch msg.Type {
case tea.KeyEnter, tea.KeyDown:
a.editor.FindNext()
a.status = a.findStatus()
return a, nil
case tea.KeyShiftTab, tea.KeyUp:
a.editor.FindPrev()
a.status = a.findStatus()
return a, nil
}
var cmd tea.Cmd
a.findInput, cmd = a.findInput.Update(msg)
a.editor.SetFindQuery(a.findInput.Value())
a.status = a.findStatus()
return a, cmd
}
// findStatus summarizes the current match count for the status bar.
func (a *App) findStatus() string {
if a.findInput.Value() == "" {
return "Find — type to search"
}
if a.editor.FindCount() == 0 {
return "No matches"
}
return fmt.Sprintf("%d matches", a.editor.FindCount())
}
// newFile is the Ctrl+N / Ctrl+I handler: start a new note in dir. From the
// picker with a typed query it creates dir/<query>.md; otherwise it opens a
// blank buffer whose save-as targets dir (confirming discard if the editor is
// dirty, keyed by pend so re-pressing the same key confirms).
func (a *App) newFile(dir string, pend pendingDiscard) (tea.Model, tea.Cmd) {
if a.mode == ModePicker {
if q := strings.TrimSpace(a.picker.Query()); q != "" {
return a.openNoteAt(picker.NewNotePath(dir, q))
}
a.startBlankIn(dir)
return a, nil
}
if a.editor.Dirty && a.pending != pend {
a.pending = pend
a.status = "Unsaved changes — press again to discard"
return a, nil
}
a.pending = discardNone
a.startBlankIn(dir)
return a, nil
}
// startBlankIn opens an empty, unnamed buffer whose save-as targets dir.
func (a *App) startBlankIn(dir string) {
a.saveDir = dir
a.editor.SetContent(nil)
a.path = ""
a.mode = ModeEditor
a.status = "New note"
}
// openNoteAt creates the note at p (if absent) and opens it.
func (a *App) openNoteAt(p string) (tea.Model, tea.Cmd) {
if p == "" {
a.status = "Type a name first"
return a, nil
}
if _, err := os.Stat(p); os.IsNotExist(err) {
if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
a.status = "New note dir failed: " + err.Error()
return a, nil
}
if err := os.WriteFile(p, []byte{}, 0o644); err != nil {
a.status = "New note failed: " + err.Error()
return a, nil
}
}
if err := a.Load(p); err != nil {
a.status = "Open failed: " + err.Error()
}
return a, nil
}
// copySelection copies the editor selection to the clipboard, deleting it when
// cut is true. No-op outside the editor or with no selection.
func (a *App) copySelection(cut bool) (tea.Model, tea.Cmd) {
if a.mode != ModeEditor {
return a, nil
}
text := a.editor.SelectedText()
if text == "" {
return a, nil
}
if err := clipboard.WriteAll(text); err != nil {
a.status = "Copy failed: " + err.Error()
return a, nil
}
if cut {
a.editor.PushUndo()
a.editor.DeleteSelection()
a.status = "Cut"
} else {
a.status = "Copied"
}
return a, nil
}
// paste inserts the clipboard contents at the cursor (replacing any selection).
func (a *App) paste() (tea.Model, tea.Cmd) {
if a.mode != ModeEditor {
return a, nil
}
text, err := clipboard.ReadAll()
if err != nil || text == "" {
return a, nil
}
a.pasteText(text)
return a, nil
}
// pasteText inserts text at the cursor. Pasting a bare URL over a selection wraps
// it as a markdown link [selection](url); otherwise it replaces the selection (or
// inserts at the cursor) verbatim (TASK-012).
func (a *App) pasteText(text string) {
a.editor.PushUndo()
if a.editor.HasSelection() && isURL(text) {
sel := a.editor.SelectedText()
a.editor.DeleteSelection()
a.editor.InsertText("[" + sel + "](" + text + ")")
return
}
a.editor.InsertText(text)
}
// isURL reports whether text is a single http(s) URL (no embedded whitespace).
func isURL(text string) bool {
if !strings.HasPrefix(text, "http://") && !strings.HasPrefix(text, "https://") {
return false
}
return !strings.ContainsAny(text, " \t\n")
}
// currentDir is the "same directory" for Ctrl+N: the picker root in the picker,
// the open file's folder in the editor, else the working directory.
func (a *App) currentDir() string {
if a.mode == ModePicker {
return a.pickerRoot
}
if a.path != "" {
return filepath.Dir(a.path)
}
return a.cfg.WorkingDir()
}
// StartNewIn is the `glint -n` entry point: a blank buffer targeting dir when
// name is empty, or a new note created at dir/<name>.md.
func (a *App) StartNewIn(dir, name string) error {
if strings.TrimSpace(name) == "" {
a.startBlankIn(dir)
return nil
}
p := picker.NewNotePath(dir, name)
if _, err := os.Stat(p); os.IsNotExist(err) {
if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
return err
}
if err := os.WriteFile(p, []byte{}, 0o644); err != nil {
return err
}
}
return a.Load(p)
}
// StartNew creates a new note in the inbox (kept for callers/tests).
func (a *App) StartNew(name string) error { return a.StartNewIn(a.cfg.InboxRoot(), name) }
// glamourStyle is the explicit config override if set, else the theme's style.
func (a *App) glamourStyle() string {
if a.cfg.GlamourStyle != "" {
return a.cfg.GlamourStyle
}
return a.theme.GlamourStyle
}
// cycleTheme advances to the next theme and repaints the editor, preview, and
// (if open) the picker.
func (a *App) cycleTheme() (tea.Model, tea.Cmd) {
a.theme = theme.Next(a.theme.Name)
a.editor.SetTheme(a.theme)
a.preview.SetStyle(a.glamourStyle())
a.preview.SetColors(previewColors(a.theme))
// Re-render an open preview so its glamour style follows the new theme
// (otherwise it keeps the old light/dark block until the next toggle).
if a.mode == ModePreview {
_ = a.preview.Render(string(a.editor.Bytes()))
}
if a.picker != nil {
a.picker.SetTheme(a.theme)
a.picker.SetStyle(a.glamourStyle())
}
// The theme name already shows on the right of the status bar; don't clobber
// the filename on the left with a transient "Theme: …" message.
return a, nil
}
// toggleHelp opens or closes the keybind overlay, sourced from help.Text (the
// same reference printed by `glint -h`). It scrolls back to the top each time it
// opens so the overlay always starts at the header.
func (a *App) toggleHelp() (tea.Model, tea.Cmd) {
if a.mode == ModeHelp {
a.mode = ModeEditor
return a, nil
}
a.helpView.GotoTop()
a.mode = ModeHelp
return a, nil
}
// togglePreview switches between the editor and the Glamour read view.
func (a *App) togglePreview() (tea.Model, tea.Cmd) {
if a.mode == ModePreview {
a.mode = ModeEditor
return a, nil
}
if err := a.preview.Render(string(a.editor.Bytes())); err != nil {
a.status = "Preview failed: " + err.Error()
return a, nil
}
a.mode = ModePreview
return a, nil
}
// contentWidth is the centered text column width: ~65% of the terminal, capped
// for readability and floored so it never collapses, never wider than the term.
func (a *App) contentWidth() int {
w := int(math.Round(float64(a.width) * canvasRatio))
if w > canvasMax {
w = canvasMax
}
if w < canvasMin {
w = canvasMin
}
if w > a.width {
w = a.width
}
return w
}
// leftMargin centers the content column in the terminal.
func (a *App) leftMargin() int {
m := (a.width - a.contentWidth()) / 2
if m < 0 {
m = 0
}
return m
}
func (a *App) topPad() int { return canvasTopPad }
func (a *App) setSize(w, h int) {
a.width = w
a.height = h
cw := a.contentWidth()
textRows := h - 1 - a.topPad() // status bar + top pad
if textRows < 1 {
textRows = 1
}
a.editor.SetSize(cw, textRows)
a.preview.SetSize(cw, textRows)
// The help overlay is a bordered box on the canvas: fit it inside the column
// (minus the 1-cell border each side) and the text rows (minus border + a
// title/footer line each).
a.helpView.Width = maxInt(cw-2, 1)
a.helpView.Height = maxInt(textRows-4, 1)
if a.picker != nil {
a.picker.SetSize(w, h-1) // picker keeps its full-width split
}
if a.mode == ModePreview {
_ = a.preview.Render(string(a.editor.Bytes())) // re-wrap at the new width
}
}
// openPicker builds a fresh picker over the working directory and switches to it.
func (a *App) openPicker() (tea.Model, tea.Cmd) {
return a.openPickerAt(a.cfg.WorkingDir())
}
// openPickerAt opens the picker rooted at dir and records the root.
func (a *App) openPickerAt(dir string) (tea.Model, tea.Cmd) {
p, err := picker.New(dir, a.theme, a.cfg.DailyPath(time.Now()), a.glamourStyle())
if err != nil {
a.status = "Picker failed: " + err.Error()
return a, nil
}
p.SetSize(a.width, a.height-1)
a.picker = p
a.pickerRoot = dir
a.mode = ModePicker
return a, nil
}
// StartPickerIn opens the picker over dir (used by -v/-i/-d and the default).
func (a *App) StartPickerIn(dir string) error {
_, _ = a.openPickerAt(dir)
return nil
}
// StartVault opens the picker over the configured vault.
func (a *App) StartVault() error { return a.StartPickerIn(a.cfg.Vault()) }
// openDaily opens today's daily note, creating the file and directory if needed.
func (a *App) openDaily() (tea.Model, tea.Cmd) {
path := a.cfg.DailyPath(time.Now())
if _, err := os.Stat(path); os.IsNotExist(err) {
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
a.status = "Daily dir failed: " + err.Error()
return a, nil
}
if err := os.WriteFile(path, []byte{}, 0o644); err != nil {
a.status = "Daily create failed: " + err.Error()
return a, nil
}
}
if err := a.Load(path); err != nil {
a.status = "Daily open failed: " + err.Error()
}
return a, nil
}
// View renders the active sub-view. The editor and preview sit in a centered,
// padded column; the picker keeps its own full-width layout.
func (a *App) View() string {
if a.mode == ModePicker {
body := a.picker.View()
if !strings.HasSuffix(body, "\n") {
body += "\n"
}
return body + a.statusBar()
}
var body string
switch a.mode {
case ModeHelp:
body = a.helpOverlay()
case ModePreview:
body = a.preview.View()
default:
body = a.editor.View() // editor stays visible beneath the save-as prompt
}
bottom := a.statusBar()
switch a.mode {
case ModeSaveAs:
bottom = a.saveBar()
case ModeFind:
bottom = a.findBar()
case ModeGotoLine:
bottom = a.gotoBar()
case ModeSpell:
bottom = a.spellBar()
}
return a.paintCanvas(body) + bottom
}
// helpOverlay renders the keybind reference (help.Text) as a centered, themed
// bordered box on the canvas, with a title and a close/scroll footer.
func (a *App) helpOverlay() string {
title := lipgloss.NewStyle().Foreground(a.theme.Heading).Bold(true).
Render("glint — keys & commands")
footer := lipgloss.NewStyle().Foreground(a.theme.Muted).
Render("Ctrl+/ or Esc to close · ↑/↓ to scroll")
inner := title + "\n\n" + a.helpView.View() + "\n\n" + footer
box := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(a.theme.Heading).
BorderBackground(a.theme.Background).
Background(a.theme.Background).
Foreground(a.theme.Text).
Width(maxInt(a.contentWidth()-2, 1))
return box.Render(inner)
}
// findBar renders the find prompt as a themed full-width bottom bar, with the
// match count trailing.
func (a *App) findBar() string {
bar := lipgloss.NewStyle().
Foreground(a.theme.StatusFg).
Background(a.theme.StatusBg).
Width(maxInt(a.width, 1))
return bar.Render(" " + a.findInput.View() + " " + a.findStatus() + " ")
}
// gotoBar renders the go-to-line prompt as a themed full-width bottom bar.
func (a *App) gotoBar() string {
bar := lipgloss.NewStyle().
Foreground(a.theme.StatusFg).
Background(a.theme.StatusBg).
Width(maxInt(a.width, 1))
return bar.Render(" " + a.gotoInput.View() + " ")
}
// saveBar renders the save-as prompt as a themed full-width bottom bar.
func (a *App) saveBar() string {
bar := lipgloss.NewStyle().
Foreground(a.theme.StatusFg).
Background(a.theme.StatusBg).
Width(maxInt(a.width, 1))
return bar.Render(" " + a.saveInput.View() + " ")
}
// paintCanvas centers body in the theme's paper: a top pad, then each body line
// indented by the left margin, every line filled to the full terminal width with
// the theme background so margins and empty space carry the theme color rather
// than the terminal default. The result is exactly height-1 rows (the status bar
// is the final row) and always ends with a trailing newline before it.
func (a *App) paintCanvas(body string) string {
bg := lipgloss.NewStyle().Background(a.theme.Background).Width(maxInt(a.width, 1))
lm := strings.Repeat(" ", a.leftMargin())
rows := make([]string, 0, a.height)
for p := 0; p < a.topPad(); p++ {
rows = append(rows, bg.Render(""))
}
for _, ln := range strings.Split(body, "\n") {
if ln == "" {
rows = append(rows, bg.Render(""))
} else {
rows = append(rows, bg.Render(lm+ln))
}
}
return strings.Join(rows, "\n") + "\n"
}
func (a *App) statusBar() string {
bar := lipgloss.NewStyle().
Foreground(a.theme.StatusFg).
Background(a.theme.StatusBg).
Width(maxInt(a.width, 1))
dirty := ""
if a.editor.Dirty {
dirty = " ●"
}
// Left: a transient message takes over; otherwise the repo (or parent
// folder) and filename.
var left string
if a.status != "" {
left = a.status + dirty
} else if a.path != "" {
left = repoOrParent(a.path) + "/" + filepath.Base(a.path) + dirty
} else {
left = filepath.Base(a.currentDir()) + "/" + dirty
}
// Right: [sel stats ·] Ln r:c · N words · theme · ? (high→low priority).
pos := a.editor.Cursor
segs := []string{fmt.Sprintf("Ln %d:%d", pos.Row+1, pos.Col+1)}
if c, w, ok := a.editor.SelectionStats(); ok {
segs = append(segs, fmt.Sprintf("%d chars · %d words selected", c, w))
}
segs = append(segs,
fmt.Sprintf("%d words", a.editor.WordCount()),
a.theme.Name,
"? ctrl+/",
)
return bar.Render(layoutStatus(" "+left, strings.Join(segs, " · ")+" ", maxInt(a.width, 1)))
}
// layoutStatus left-justifies left and right-justifies right within width,
// dropping trailing right-hand segments (split on " · ") then truncating to fit
// at narrow widths so the bar never overflows.
func layoutStatus(left, right string, width int) string {
for lipgloss.Width(left)+lipgloss.Width(right)+1 > width && strings.Contains(right, " · ") {
i := strings.LastIndex(right, " · ")
right = right[:i] + right[len(right)-1:] // keep the trailing space
}
if lipgloss.Width(left)+lipgloss.Width(right)+1 > width {
right = "" // still too wide: drop the right group entirely
}
gap := width - lipgloss.Width(left) - lipgloss.Width(right)
if gap < 1 {
// Left alone overflows: truncate it to the available width.
return truncate(left, width)
}
return left + strings.Repeat(" ", gap) + right
}
// truncate cuts s to a maximum display width, appending … when shortened.
func truncate(s string, width int) string {
if lipgloss.Width(s) <= width {
return s
}
if width <= 1 {
return strings.Repeat(" ", maxInt(width, 0))
}
r := []rune(s)
for len(r) > 0 && lipgloss.Width(string(r))+1 > width {
r = r[:len(r)-1]
}
return string(r) + "…"
}
// repoOrParent returns the name of the git repository containing path (the
// folder holding .git), or the file's immediate parent folder when path is not
// inside a repo.
func repoOrParent(path string) string {
parent := filepath.Dir(path)
for dir := parent; ; {
if _, err := os.Stat(filepath.Join(dir, ".git")); err == nil {
return filepath.Base(dir)
}
up := filepath.Dir(dir)
if up == dir { // reached the filesystem root
break
}
dir = up
}
return filepath.Base(parent)
}
func maxInt(a, b int) int {
if a > b {
return a
}
return b
}
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