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gocui
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Simplify demo2. Add Gui.CurrentView(). Fix keybindings

This commit is contained in:
Roi Martin (@nibble_ds) 2014-01-27 22:40:46 +01:00
parent 7cc82f809e
commit 46b1452e71
2 changed files with 30 additions and 134 deletions
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154
_demos/demo2.go
View File

@ -12,24 +12,12 @@ import (
"github.com/jroimartin/gocui" "github.com/jroimartin/gocui"
) )
func focusMain(g *gocui.Gui, v *gocui.View) error { func nextView(g *gocui.Gui, v *gocui.View) error {
return g.SetCurrentView("main") currentView := g.CurrentView()
} if currentView == nil || currentView.Name() == "side" {
return g.SetCurrentView("main")
func focusSide(g *gocui.Gui, v *gocui.View) error { }
return g.SetCurrentView("side") return g.SetCurrentView("side")
}
func focusCmdLine(g *gocui.Gui, v *gocui.View) error {
return g.SetCurrentView("cmdline")
}
func showHideCursor(g *gocui.Gui, v *gocui.View) error {
g.ShowCursor = !g.ShowCursor
return nil
} }
func cursorDown(g *gocui.Gui, v *gocui.View) error { func cursorDown(g *gocui.Gui, v *gocui.View) error {
@ -84,49 +72,6 @@ func cursorRight(g *gocui.Gui, v *gocui.View) error {
return nil return nil
} }
func clear(g *gocui.Gui, v *gocui.View) error {
if v != nil {
v.Clear()
}
return nil
}
func writeTest(g *gocui.Gui, v *gocui.View) error {
if v != nil {
fmt.Fprintln(v, "This is a test")
}
return nil
}
func showMsg(g *gocui.Gui, v *gocui.View) error {
maxX, maxY := g.Size()
if v, err := g.SetView("msg", maxX/2-10, maxY/2-10, maxX/2+10, maxY/2+10); err != nil {
if err != gocui.ErrorUnkView {
return err
}
fmt.Fprintln(v, "This is a message")
}
if err := g.SetCurrentView("msg"); err != nil {
return err
}
return nil
}
func delMsg(g *gocui.Gui, v *gocui.View) error {
g.DeleteView("msg")
return nil
}
func setLayout1(g *gocui.Gui, v *gocui.View) error {
g.SetLayout(layout)
return nil
}
func setLayout2(g *gocui.Gui, v *gocui.View) error {
g.SetLayout(layout2)
return nil
}
func getLine(g *gocui.Gui, v *gocui.View) error { func getLine(g *gocui.Gui, v *gocui.View) error {
var l string var l string
var err error var err error
@ -142,40 +87,32 @@ func getLine(g *gocui.Gui, v *gocui.View) error {
return err return err
} }
fmt.Fprintln(v, l) fmt.Fprintln(v, l)
if err := g.SetCurrentView("msg"); err != nil {
return err
}
} }
return nil return nil
} }
func getWord(g *gocui.Gui, v *gocui.View) error { func delMsg(g *gocui.Gui, v *gocui.View) error {
var w string if err := g.DeleteView("msg"); err != nil {
var err error
cx, cy := v.Cursor()
if w, err = v.Word(cx, cy); err != nil {
return err return err
} }
if err := g.SetCurrentView("side"); err != nil {
maxX, maxY := g.Size() return err
if v, err := g.SetView("msg", maxX/2-30, maxY/2, maxX/2+30, maxY/2+2); err != nil {
if err != gocui.ErrorUnkView {
return err
}
fmt.Fprintf(v, "\"%s\"", w)
} }
return nil return nil
} }
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrorQuit
}
func keybindings(g *gocui.Gui) error { func keybindings(g *gocui.Gui) error {
if err := g.SetKeybinding("", gocui.KeyCtrlSpace, 0, focusMain); err != nil { if err := g.SetKeybinding("side", gocui.KeyCtrlSpace, 0, nextView); err != nil {
return err return err
} }
if err := g.SetKeybinding("", gocui.KeyCtrlS, 0, focusSide); err != nil { if err := g.SetKeybinding("main", gocui.KeyCtrlSpace, 0, nextView); err != nil {
return err
}
if err := g.SetKeybinding("", gocui.KeyCtrlL, 0, focusCmdLine); err != nil {
return err
}
if err := g.SetKeybinding("", 'c', gocui.ModAlt, showHideCursor); err != nil {
return err return err
} }
if err := g.SetKeybinding("", gocui.KeyArrowDown, 0, cursorDown); err != nil { if err := g.SetKeybinding("", gocui.KeyArrowDown, 0, cursorDown); err != nil {
@ -193,44 +130,19 @@ func keybindings(g *gocui.Gui) error {
if err := g.SetKeybinding("", gocui.KeyCtrlC, 0, quit); err != nil { if err := g.SetKeybinding("", gocui.KeyCtrlC, 0, quit); err != nil {
return err return err
} }
if err := g.SetKeybinding("main", 'q', 0, quit); err != nil { if err := g.SetKeybinding("side", gocui.KeyEnter, 0, getLine); err != nil {
return err return err
} }
if err := g.SetKeybinding("", 'c', 0, clear); err != nil { if err := g.SetKeybinding("msg", gocui.KeyEnter, 0, delMsg); err != nil {
return err
}
if err := g.SetKeybinding("", 't', 0, writeTest); err != nil {
return err
}
if err := g.SetKeybinding("", '1', 0, setLayout1); err != nil {
return err
}
if err := g.SetKeybinding("", '2', 0, setLayout2); err != nil {
return err
}
if err := g.SetKeybinding("", '3', 0, showMsg); err != nil {
return err
}
if err := g.SetKeybinding("", '4', 0, delMsg); err != nil {
return err
}
if err := g.SetKeybinding("", '9', 0, getWord); err != nil {
return err
}
if err := g.SetKeybinding("", '0', 0, getLine); err != nil {
return err return err
} }
return nil return nil
} }
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrorQuit
}
func layout(g *gocui.Gui) error { func layout(g *gocui.Gui) error {
maxX, maxY := g.Size() maxX, maxY := g.Size()
if v, err := g.SetView("side", -1, -1, 30, maxY-5); err != nil { if v, err := g.SetView("side", -1, -1, 30, maxY); err != nil {
if err != gocui.ErrorUnkView { if err != gocui.ErrorUnkView {
return err return err
} }
@ -240,7 +152,7 @@ func layout(g *gocui.Gui) error {
fmt.Fprintln(v, "Item 3") fmt.Fprintln(v, "Item 3")
fmt.Fprintln(v, "Item 4") fmt.Fprintln(v, "Item 4")
} }
if v, err := g.SetView("main", 30, -1, maxX, maxY-5); err != nil { if v, err := g.SetView("main", 30, -1, maxX, maxY); err != nil {
if err != gocui.ErrorUnkView { if err != gocui.ErrorUnkView {
return err return err
} }
@ -249,28 +161,8 @@ func layout(g *gocui.Gui) error {
panic(err) panic(err)
} }
fmt.Fprintf(v, "%s", b) fmt.Fprintf(v, "%s", b)
if err := g.SetCurrentView("main"); err != nil {
return err
}
}
if v, err := g.SetView("cmdline", -1, maxY-5, maxX, maxY); err != nil {
if err != gocui.ErrorUnkView {
return err
}
v.Editable = true v.Editable = true
fmt.Fprintln(v, "Command line test") if err := g.SetCurrentView("main"); err != nil {
}
return nil
}
func layout2(g *gocui.Gui) error {
maxX, maxY := g.Size()
if v, err := g.SetView("center", maxX/2-10, maxY/2-10, maxX/2+10, maxY/2+10); err != nil {
if err != gocui.ErrorUnkView {
return err
}
fmt.Fprintln(v, "Center view test")
if err := g.SetCurrentView("center"); err != nil {
return err return err
} }
} }

10
gui.go
View File

@ -151,6 +151,12 @@ func (g *Gui) SetCurrentView(name string) error {
return ErrorUnkView return ErrorUnkView
} }
// Current View returns the currently focused view, or nil if no view
// owns the focus.
func (g *Gui) CurrentView() *View {
return g.currentView
}
// SetKeybinding creates a new keybinding. If viewname equals to "" // SetKeybinding creates a new keybinding. If viewname equals to ""
// (empty string) then the keybinding will apply to all views. key must // (empty string) then the keybinding will apply to all views. key must
// be a rune or a Key. // be a rune or a Key.
@ -423,9 +429,7 @@ func (g *Gui) onKey(ev *termbox.Event) error {
for _, kb := range g.keybindings { for _, kb := range g.keybindings {
if kb.h != nil && ev.Ch == kb.ch && Key(ev.Key) == kb.key && Modifier(ev.Mod) == kb.mod && if kb.h != nil && ev.Ch == kb.ch && Key(ev.Key) == kb.key && Modifier(ev.Mod) == kb.mod &&
(kb.viewName == "" || (g.currentView != nil && kb.viewName == g.currentView.name)) { (kb.viewName == "" || (g.currentView != nil && kb.viewName == g.currentView.name)) {
if err := kb.h(g, g.currentView); err != nil { return kb.h(g, g.currentView)
return err
}
} }
} }
return nil return nil