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-rw-r--r--ui/ui.go88
1 files changed, 88 insertions, 0 deletions
diff --git a/ui/ui.go b/ui/ui.go
new file mode 100644
index 00000000..f01af08f
--- /dev/null
+++ b/ui/ui.go
@@ -0,0 +1,88 @@
+package ui
+
+import (
+ tb "github.com/nsf/termbox-go"
+
+ "git.sr.ht/~sircmpwn/aerc2/config"
+)
+
+func Initialize(conf *config.AercConfig) (*UIState, error) {
+ state := UIState{
+ Config: conf,
+ InvalidPanes: InvalidateAll,
+
+ tbEvents: make(chan tb.Event, 10),
+ }
+ if err := tb.Init(); err != nil {
+ return nil, err
+ }
+ tb.SetInputMode(tb.InputEsc | tb.InputMouse)
+ tb.SetOutputMode(tb.Output256)
+ go (func() {
+ for !state.Exit {
+ state.tbEvents <- tb.PollEvent()
+ }
+ })()
+ return &state, nil
+}
+
+func (state *UIState) Close() {
+ tb.Close()
+}
+
+func (state *UIState) AddTab(tab AercTab) {
+ tab.SetParent(state)
+ state.Tabs = append(state.Tabs, tab)
+}
+
+func (state *UIState) Invalidate(what uint) {
+ state.InvalidPanes |= what
+}
+
+func (state *UIState) InvalidateFrom(tab AercTab) {
+ if state.Tabs[state.SelectedTab] == tab {
+ state.Invalidate(InvalidateTabView)
+ }
+}
+
+func (state *UIState) calcGeometries() {
+ width, height := tb.Size()
+ // TODO: more
+ state.Panes.TabView = Geometry{
+ Row: 0,
+ Col: 0,
+ Width: width,
+ Height: height,
+ }
+}
+
+func (state *UIState) Tick() bool {
+ select {
+ case event := <-state.tbEvents:
+ switch event.Type {
+ case tb.EventKey:
+ if event.Key == tb.KeyEsc {
+ state.Exit = true
+ }
+ case tb.EventResize:
+ state.Invalidate(InvalidateAll)
+ }
+ default:
+ // no-op
+ break
+ }
+ if state.InvalidPanes != 0 {
+ invalid := state.InvalidPanes
+ state.InvalidPanes = 0
+ if invalid&InvalidateAll == InvalidateAll {
+ tb.Clear(tb.ColorDefault, tb.ColorDefault)
+ state.calcGeometries()
+ }
+ if invalid&InvalidateTabView != 0 {
+ tab := state.Tabs[state.SelectedTab]
+ tab.Render(state.Panes.TabView)
+ }
+ tb.Flush()
+ }
+ return true
+}