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package termui
import (
"github.com/MichaelMure/git-bug/cache"
"github.com/MichaelMure/git-bug/input"
"github.com/MichaelMure/git-bug/repository"
"github.com/jroimartin/gocui"
"github.com/pkg/errors"
)
var errTerminateMainloop = errors.New("terminate gocui mainloop")
type termUI struct {
g *gocui.Gui
gError chan error
cache cache.RepoCacher
activeWindow window
bugTable *bugTable
showBug *showBug
errorPopup *errorPopup
}
func (tui *termUI) activateWindow(window window) error {
if err := tui.activeWindow.disable(tui.g); err != nil {
return err
}
tui.activeWindow = window
return nil
}
var ui *termUI
type window interface {
keybindings(g *gocui.Gui) error
layout(g *gocui.Gui) error
disable(g *gocui.Gui) error
}
func Run(repo repository.Repo) error {
c := cache.NewRepoCache(repo)
ui = &termUI{
gError: make(chan error, 1),
cache: c,
bugTable: newBugTable(c),
showBug: newShowBug(c),
errorPopup: newErrorPopup(),
}
ui.activeWindow = ui.bugTable
initGui()
err := <-ui.gError
if err != nil && err != gocui.ErrQuit {
return err
}
return nil
}
func initGui() {
g, err := gocui.NewGui(gocui.OutputNormal)
if err != nil {
ui.gError <- err
return
}
ui.g = g
ui.g.SetManagerFunc(layout)
err = keybindings(ui.g)
if err != nil {
ui.g.Close()
ui.g = nil
ui.gError <- err
return
}
err = g.MainLoop()
if err != nil && err != errTerminateMainloop {
if ui.g != nil {
ui.g.Close()
}
ui.gError <- err
}
return
}
func layout(g *gocui.Gui) error {
g.Cursor = false
if err := ui.activeWindow.layout(g); err != nil {
return err
}
if err := ui.errorPopup.layout(g); err != nil {
return err
}
return nil
}
func keybindings(g *gocui.Gui) error {
// Quit
if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
return err
}
if err := ui.bugTable.keybindings(g); err != nil {
return err
}
if err := ui.showBug.keybindings(g); err != nil {
return err
}
if err := ui.errorPopup.keybindings(g); err != nil {
return err
}
return nil
}
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit
}
func newBugWithEditor(g *gocui.Gui, v *gocui.View) error {
// This is somewhat hacky.
// As there is no way to pause gocui, run the editor, restart gocui,
// we have to stop it entirely and start a new one later.
//
// - an error channel is used to route the returned error of this new
// instance into the original launch function
// - a custom error (errTerminateMainloop) is used to terminate the original
// instance's mainLoop. This error is then filtered.
ui.g.Close()
ui.g = nil
title, message, err := input.BugCreateEditorInput(ui.cache.Repository(), "", "")
if err != nil && err != input.ErrEmptyTitle {
return err
}
if err == input.ErrEmptyTitle {
ui.errorPopup.err = err.Error()
} else {
_, err = ui.cache.NewBug(title, message)
if err != nil {
return err
}
}
initGui()
return errTerminateMainloop
}
func maxInt(a, b int) int {
if a > b {
return a
}
return b
}
func minInt(a, b int) int {
if a > b {
return b
}
return a
}
|
