Implemented windowmanager package

ui/windowmanager/windowmanager.go

@@ -0,0 +1,146 @@
+package windowmanager
+
+import (
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/mrusme/gobbs/ui/cmd"
+	"github.com/mrusme/gobbs/ui/helpers"
+	"github.com/mrusme/gobbs/ui/windows"
+)
+
+type StackItem struct {
+	ID   string
+	Win  windows.Window
+	XYWH [4]int
+}
+
+type WM struct {
+	stack []StackItem
+}
+
+func New() *WM {
+	wm := new(WM)
+
+	return wm
+}
+
+func (wm *WM) Open(id string, win windows.Window, xywh [4]int) []tea.Cmd {
+	var tcmds []tea.Cmd
+
+	if wm.IsOpen(id) {
+		if wm.IsFocused(id) {
+			return tcmds
+		}
+		return wm.Focus(id)
+	}
+
+	item := new(StackItem)
+	item.ID = id
+	item.Win = win
+	item.XYWH = xywh
+
+	wm.stack = append(wm.stack, *item)
+
+	tcmds = append(tcmds, wm.Update(id, tea.WindowSizeMsg{
+		Width:  item.XYWH[2],
+		Height: item.XYWH[3],
+	}))
+
+	fcmds := wm.Focus(id)
+	tcmds = append(tcmds, fcmds...)
+
+	return tcmds
+}
+
+func (wm *WM) CloseFocused() bool {
+	return wm.Close(wm.Focused())
+}
+
+func (wm *WM) Close(id string) bool {
+	for i := len(wm.stack) - 1; i >= 0; i-- {
+		if wm.stack[i].ID == id {
+			wm.stack = append(wm.stack[:i], wm.stack[i+1:]...)
+			return true
+		}
+	}
+
+	return false
+}
+
+func (wm *WM) Focus(id string) []tea.Cmd {
+	var tcmds []tea.Cmd
+
+	for i := 0; i < len(wm.stack); i++ {
+		var tcmd tea.Cmd
+		if wm.stack[i].ID == id {
+			wm.stack[i].Win, tcmd = wm.stack[i].Win.Update(*cmd.New(cmd.WinFocus, wm.stack[i].ID))
+		} else {
+			wm.stack[i].Win, tcmd = wm.stack[i].Win.Update(*cmd.New(cmd.WinBlur, wm.stack[i].ID))
+		}
+		tcmds = append(tcmds, tcmd)
+	}
+
+	tcmds = append(tcmds, cmd.New(cmd.ViewBlur, "*").Tea())
+	return tcmds
+}
+
+func (wm *WM) Focused() string {
+	l := len(wm.stack) - 1
+	if l < 0 {
+		return ""
+	}
+
+	return wm.stack[l].ID
+}
+
+func (wm *WM) IsOpen(id string) bool {
+	for _, win := range wm.stack {
+		if win.ID == id {
+			return true
+		}
+	}
+	return false
+}
+
+func (wm *WM) IsFocused(id string) bool {
+	return id == wm.Focused()
+}
+
+func (wm *WM) GetNumberOpen() int {
+	return len(wm.stack)
+}
+
+func (wm *WM) Update(id string, msg tea.Msg) tea.Cmd {
+	var teaCmd tea.Cmd
+
+	for i := 0; i < len(wm.stack); i++ {
+		if wm.stack[i].ID == id {
+			wm.stack[i].Win, teaCmd = wm.stack[i].Win.Update(msg)
+		}
+	}
+
+	return teaCmd
+}
+
+func (wm *WM) UpdateAll(msg tea.Msg) []tea.Cmd {
+	var tcmd tea.Cmd
+	var tcmds []tea.Cmd
+
+	for i := 0; i < len(wm.stack); i++ {
+		wm.stack[i].Win, tcmd = wm.stack[i].Win.Update(msg)
+		tcmds = append(tcmds, tcmd)
+	}
+
+	return tcmds
+}
+
+func (wm *WM) View(view string) string {
+	var v string = view
+
+	for i := 0; i < len(wm.stack); i++ {
+		v = helpers.PlaceOverlay(3, 2,
+			wm.stack[i].Win.View(),
+			v, true)
+	}
+
+	return v
+}