84 lines
1.6 KiB
Go
84 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"log"
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"github.com/jroimartin/gocui"
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)
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type ViewController struct {
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Name string
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Title string
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Placeholder string
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Enabled bool
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Wrap bool
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Cursor bool
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Current bool
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Highlight bool
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OnTop bool
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TopLeft func(int, int) (int, int)
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BotRight func(int, int) (int, int)
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SelBgColor gocui.Attribute
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SelFgColor gocui.Attribute
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Keybindings []Binding
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// extra field for view state
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State *State
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}
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type ViewManager struct {
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g *gocui.Gui
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views []*ViewController
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}
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func (m *ViewManager) Layout(g *gocui.Gui) error {
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mx, my := g.Size()
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for _, cfg := range m.views {
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if !cfg.Enabled {
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continue
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}
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x0, y0 := cfg.TopLeft(mx, my)
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x1, y1 := cfg.BotRight(mx, my)
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v, err := g.SetView(cfg.Name, x0, y0, x1, y1)
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// Some settings can be set only once
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if err == gocui.ErrUnknownView {
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cfg.SetKeybindings(g)
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if cfg.Cursor {
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v.SetCursor(0, 0)
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}
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if cfg.Placeholder != "" {
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fmt.Fprintln(v, cfg.Placeholder)
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}
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} else if err != nil {
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log.Panicln(err)
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}
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v.Title = cfg.Title
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v.Wrap = cfg.Wrap
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v.SelFgColor = cfg.SelFgColor
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v.SelBgColor = cfg.SelBgColor
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v.Highlight = cfg.Highlight
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if cfg.Current {
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g.SetCurrentView(cfg.Name)
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}
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if cfg.OnTop {
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g.SetViewOnTop(cfg.Name)
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}
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}
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return nil
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}
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func (v *ViewController) SetKeybindings(g *gocui.Gui) error {
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for _, b := range v.Keybindings {
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// IDEA: I can pass a method instead of a function here
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if err := g.SetKeybinding("", b.Key, b.Mod, b.Handler); err != nil {
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return err
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}
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}
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return nil
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}
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