Add support for creating single view

compositor/compositor.go

@@ -48,9 +48,22 @@ func (c *Compositor) OutputCreated(o wlc.Output) bool {
 	return true
 }
 
+// OutputResolution is the callback triggered when output resolution changes.
+func (c *Compositor) OutputResolution(o wlc.Output, from *wlc.Size, to *wlc.Size) {
+	c.layout.Arrange(c.layout.OutputByBackend(o))
+}
+
+// ViewRequestGeometry is the callback triggered when a new view geometry is
+// requested. Note this callback must allways be be set (even if it's stubbed)
+// otherwise wlc won't accept your geometry requests.
+func (c *Compositor) ViewRequestGeometry(view wlc.View, geometry *wlc.Geometry) {
+	// stub intentionally to ignore geometry requests.
+}
+
 // ViewCreated is the callback triggered when a view is added by the backend.
 func (c *Compositor) ViewCreated(v wlc.View) bool {
-	c.layout.NewView(c.ctx, v)
+	view := c.layout.NewView(c.ctx, v)
+	c.layout.Arrange(view.Parent())
 
 	// TODO: return false on failure
 	return true

layout/i3/layout.go

@@ -21,13 +21,26 @@ func New() *Layout {
 func (l *Layout) Arrange(start layout.Container) {
 	// TODO: implement with more than one view
 	switch c := start.(type) {
+	case *layout.Root:
+		l.Arrange(c.Focused())
+	case *layout.Output:
+		log.Debugf("OUTPUT VISIBILITY MASK %d", c.GetMask())
+		l.Arrange(c.Focused())
+	case *layout.Workspace:
+		l.Arrange(c.Focused())
 	case *layout.View:
+		c.SetMask(1) // TODO: don't set it here
 		pG := c.Parent().Geometry()
 		g := c.Geometry()
 		g.Origin = pG.Origin
 		g.Size = pG.Size
 		log.Debugf("Arranging view %s %dx%d (%d,%d)", c.Title(),
 			g.Size.W, g.Size.H, g.Origin.X, g.Origin.Y)
+		c.SetGeometry(0, *g)
+
+		// if c.Focused() == c {
+		c.Focus()
+		// }
 	}
 }
 

layout/i3/output.go

@@ -19,6 +19,16 @@ func (l *Layout) NewOutput(ctx context.Context, output backend.Output) {
 	l.NewWorkspace(ctx, o, name, num)
 }
 
+// OutputByBackend gets output container from backend output interface.
+func (l *Layout) OutputByBackend(output backend.Output) layout.Container {
+	for _, child := range l.root.Children() {
+		if o, ok := child.(*layout.Output); ok && o.Output == output {
+			return child
+		}
+	}
+	return nil
+}
+
 // findNextWorkspace finds next available workspace name & number.
 func findNextWorkspace(ws []*layout.Workspace, confWs map[uint]string) (string, uint) {
 	num := findAvailableWorkspaceNum(ws)

layout/i3/output_test.go

@@ -2,8 +2,10 @@ package i3
 
 import (
 	"context"
+	"fmt"
 	"testing"
 
+	"github.com/mikkeloscar/flis/backend"
 	"github.com/mikkeloscar/flis/config"
 	"github.com/mikkeloscar/flis/layout"
 	wlc "github.com/mikkeloscar/go-wlc"
@@ -21,14 +23,76 @@ func TestNewOutput(t *testing.T) {
 		},
 	)
 
-	output := wlc.Output(0)
+	output := mockOutput(0)
 	layout := New()
 	layout.NewOutput(ctx, output)
 }
 
+type mockOutput int
+
+func (o mockOutput) Focus()                                          {}
+func (o mockOutput) GetMask() uint32                                 { return 0 }
+func (o mockOutput) GetMutableViews() []wlc.View                     { return nil }
+func (o mockOutput) Name() string                                    { return fmt.Sprintf("%d", o) }
+func (o mockOutput) GetRenderer() wlc.Renderer                       { return wlc.NoRenderer }
+func (o mockOutput) GetResolution() *wlc.Size                        { return nil }
+func (o mockOutput) GetVirtualResolution() *wlc.Size                 { return nil }
+func (o mockOutput) SetResolution(resolution wlc.Size, scale uint32) {}
+func (o mockOutput) GetScale() uint32                                { return 0 }
+func (o mockOutput) GetSleep() bool                                  { return false }
+func (o mockOutput) GetViews() []wlc.View                            { return nil }
+func (o mockOutput) ScheduleRender()                                 {}
+func (o mockOutput) SetMask(mask uint32)                             {}
+func (o mockOutput) SetSleep(sleep bool)                             {}
+func (o mockOutput) SetViews(views []wlc.View) bool                  { return false }
+
+// TestOutputByBackend tests getting an output container from a backend output
+// interface.
+func TestOutputByBackend(t *testing.T) {
+	ctx := context.WithValue(
+		context.Background(),
+		"config",
+		&config.Config{
+			Workspaces: map[uint]string{
+				1: "one",
+			},
+		},
+	)
+
+	layout := New()
+
+	for i := 0; i < 5; i++ {
+		output := mockOutput(i)
+		layout.NewOutput(ctx, output)
+	}
+
+	for _, ti := range []struct {
+		output backend.Output
+		exists bool
+	}{
+		{
+			output: mockOutput(2),
+			exists: true,
+		},
+		{
+			output: mockOutput(10),
+			exists: false,
+		},
+	} {
+		c := layout.OutputByBackend(ti.output)
+		if c == nil && ti.exists {
+			t.Errorf("expected to find an output")
+		}
+
+		if c != nil && !ti.exists {
+			t.Errorf("did not expect to find an output")
+		}
+	}
+}
+
 // TestFindNextWorkspace tests finding the next available workspace.
 func TestFindNextWorkspace(t *testing.T) {
-	tests := []struct {
+	for _, ti := range []struct {
 		current []*layout.Workspace
 		names   map[uint]string
 		name    string
@@ -64,23 +128,21 @@ func TestFindNextWorkspace(t *testing.T) {
 			"2",
 			2,
 		},
-	}
-
-	for _, test := range tests {
-		name, num := findNextWorkspace(test.current, test.names)
-		if name != test.name {
-			t.Errorf("expected to get workspace name '%s', got '%s'", test.name, name)
+	} {
+		name, num := findNextWorkspace(ti.current, ti.names)
+		if name != ti.name {
+			t.Errorf("expected to get workspace name '%s', got '%s'", ti.name, name)
 		}
 
-		if num != test.num {
-			t.Errorf("expected to get workspace num '%d', got '%d'", test.num, num)
+		if num != ti.num {
+			t.Errorf("expected to get workspace num '%d', got '%d'", ti.num, num)
 		}
 	}
 }
 
 // TestFindAvailableWorkspaceNum tests finding available workspace number.
 func TestFindAvailableWorkspaceNum(t *testing.T) {
-	tests := []struct {
+	for _, ti := range []struct {
 		ws  []*layout.Workspace
 		num uint
 	}{
@@ -108,12 +170,10 @@ func TestFindAvailableWorkspaceNum(t *testing.T) {
 			},
 			2,
 		},
-	}
-
-	for _, test := range tests {
-		num := findAvailableWorkspaceNum(test.ws)
-		if num != test.num {
-			t.Errorf("expected workspace num %d, got %d", test.num, num)
+	} {
+		num := findAvailableWorkspaceNum(ti.ws)
+		if num != ti.num {
+			t.Errorf("expected workspace num %d, got %d", ti.num, num)
 		}
 	}
 }

layout/i3/view.go

@@ -9,9 +9,10 @@ import (
 
 // NewView adds a new view to the layout. The view will be added to the
 // currently focused container.
-func (l *Layout) NewView(ctx context.Context, view backend.View) {
+func (l *Layout) NewView(ctx context.Context, view backend.View) layout.Container {
 	// TODO: check if sibling or parent
 	parent := l.FocusedByType(ctx, layout.CWorkspace)
 	v := layout.NewView(view, parent)
 	parent.AddChild(v)
+	return v
 }

layout/layout.go

@@ -41,14 +41,18 @@ type Layout interface {
 	NewWorkspace(ctx context.Context, output *Output, name string, num uint)
 
 	// NewView initializes a new view.
-	NewView(ctx context.Context, view backend.View)
+	NewView(ctx context.Context, view backend.View) Container
 
 	// ArrangeRoot arranges the whole layout from the root and down.
 	ArrangeRoot()
 
 	// Arrange arranges a subbranch of the layout starting from the
 	// specified container and moving down the layout.
 	Arrange(start Container)
+
+	// OutputByBackend gets output container from backend output interface.
+	OutputByBackend(output backend.Output) Container
+	// ViewByBackend(output backend.Output) Container
 }
 
 // Get layout from context.

layout/mock.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/mikkeloscar/flis/backend"
+	wlc "github.com/mikkeloscar/go-wlc"
 )
 
 // Mock mocks the layout interface.
@@ -28,11 +29,43 @@ func (m Mock) NewOutput(ctx context.Context, output backend.Output) {}
 func (m Mock) NewWorkspace(ctx context.Context, output *Output, name string, num uint) {}
 
 // NewView mocks initializing a new view.
-func (m Mock) NewView(ctx context.Context, view backend.View) {}
+func (m Mock) NewView(ctx context.Context, view backend.View) Container {
+	return MockView{}
+}
 
 // ArrangeRoot mocks arranging the whole layout from the root and down.
 func (m Mock) ArrangeRoot() {}
 
 // Arrange mocks arranging a subbranch of the layout starting from the
 // specified container and moving down the layout.
 func (m Mock) Arrange(start Container) {}
+
+// OutputByBackend gets output container from backend output interface.
+func (m Mock) OutputByBackend(output backend.Output) Container { return nil }
+
+// MockView mocks a view container.
+type MockView struct{}
+
+// Geometry mocks geometry of the container.
+func (v MockView) Geometry() *wlc.Geometry { return nil }
+
+// Children mocks children of the container.
+func (v MockView) Children() []Container { return nil }
+
+// Floating mocks floating children of the container.
+func (v MockView) Floating() []Container { return nil }
+
+// Focused mocks focused child of the container.
+func (v MockView) Focused() Container { return nil }
+
+// Parent mocks getting parent container of the container.
+func (v MockView) Parent() Container { return nil }
+
+// Visible mocks return the visibility state of the container.
+func (v MockView) Visible() bool { return false }
+
+// AddChild mocks adding a child container.
+func (v MockView) AddChild(Container) {}
+
+// Type mocks returning the type of the container.
+func (v MockView) Type() ContainerType { return CView }

layout/mock_test.go

@@ -15,4 +15,16 @@ func TestMock(t *testing.T) {
 	m.NewView(nil, nil)
 	m.ArrangeRoot()
 	m.Arrange(nil)
+	m.OutputByBackend(nil)
+
+	v := MockView{}
+
+	v.Geometry()
+	v.Children()
+	v.Floating()
+	v.Focused()
+	v.Parent()
+	v.Visible()
+	v.AddChild(nil)
+	v.Type()
 }

main.go

@@ -57,9 +57,12 @@ func main() {
 	comp := compositor.New(conf, &backend.WLC{}, i3.New())
 
 	wlc.SetOutputCreatedCb(comp.OutputCreated)
+	wlc.SetOutputResolutionCb(comp.OutputResolution)
 	wlc.SetViewCreatedCb(comp.ViewCreated)
+	wlc.SetViewRequestGeometryCb(comp.ViewRequestGeometry)
 	wlc.SetPointerMotionCb(comp.PointerMotion)
 	wlc.SetKeyboardKeyCb(comp.KeyboardKey)
+	wlc.LogSetHandler(wlcLogHandler)
 
 	if !wlc.Init() {
 		os.Exit(1)
@@ -68,3 +71,17 @@ func main() {
 	wlc.Run()
 	os.Exit(0)
 }
+
+func wlcLogHandler(typ wlc.LogType, msg string) {
+	format := "[WLC] %s"
+	switch typ {
+	case wlc.LogInfo:
+		log.Debugf(format, msg)
+	case wlc.LogWarn:
+		log.Warnf(format, msg)
+	case wlc.LogError:
+		log.Errorf(format, msg)
+	case wlc.LogWayland:
+		log.Debugf("[WLC - Wayland] %s", msg)
+	}
+}