Make it possible to switch panels

pkg/gui/gui.go

@@ -66,6 +66,29 @@ func (g *Gui) initGrid() {
 	g.application.SetRoot(g.pages, true)
 }
 
+// TODO: Be more clear the relationship between each panel.
+func (g *Gui) nextPanel() {
+	switch g.application.GetFocus().(type) {
+	case *item.Linters:
+		g.switchPanel(g.sourceFilesItem)
+	case *item.SourceFiles:
+		g.switchPanel(g.resultsItem)
+	case *item.Results:
+		g.switchPanel(g.lintersItem)
+	}
+}
+
+func (g *Gui) prevPanel() {
+	switch g.application.GetFocus().(type) {
+	case *item.Linters:
+		g.switchPanel(g.resultsItem)
+	case *item.SourceFiles:
+		g.switchPanel(g.lintersItem)
+	case *item.Results:
+		g.switchPanel(g.sourceFilesItem)
+	}
+}
+
 // registerPath adds path to golangci-lint runner as an arg.
 func (g *Gui) registerPath(node *tview.TreeNode, path string) {
 	g.runner.AddArgs(path)

pkg/gui/item/linters.go

@@ -1,6 +1,9 @@
 package item
 
-import "github.com/rivo/tview"
+import (
+	"github.com/gdamore/tcell"
+	"github.com/rivo/tview"
+)
 
 type Linters struct {
 	*tview.Table
@@ -17,3 +20,10 @@ func NewLinters() *Linters {
 
 	return l
 }
+
+func (s *Linters) SetKeybinds(globalKeybind func(event *tcell.EventKey)) {
+	s.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+		globalKeybind(event)
+		return event
+	})
+}

pkg/gui/keybindings.go

@@ -5,11 +5,19 @@ import (
 )
 
 func (g *Gui) setKeybind() {
+	g.lintersItem.SetKeybinds(g.grobalKeybind)
 	g.sourceFilesItem.SetKeybinds(g.grobalKeybind, g.registerPath, g.unregisterPath)
 	g.resultsItem.SetKeybinds(g.grobalKeybind, g.openFile)
 }
 
 func (g *Gui) grobalKeybind(event *tcell.EventKey) {
+	switch event.Key() {
+	case tcell.KeyTab:
+		g.nextPanel()
+	case tcell.KeyBacktab:
+		g.prevPanel()
+	}
+
 	switch event.Rune() {
 	case 'q':
 		g.application.Stop()