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itemsStore.go
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package main
import (
"time"
"github.com/getlantern/systray"
)
const (
static = iota
dynamic
)
type StoreItem struct {
item *systray.MenuItem
title string
value string
elemType int
separator bool
onClick func(m *StoreItem)
onTick func(m *StoreItem, s *StatsStore)
}
func (storeItem *StoreItem) ToString() string {
if storeItem.value == "" {
return storeItem.title
}
return storeItem.title + ": " + storeItem.value
}
func (storeItem *StoreItem) UpdateTitle(title string) {
storeItem.title = title
storeItem.item.SetTitle(storeItem.ToString())
}
func (storeItem *StoreItem) UpdateValue(value string) {
storeItem.value = value
storeItem.item.SetTitle(storeItem.ToString())
}
func (storeItem *StoreItem) Check() {
storeItem.item.Check()
}
func (storeItem *StoreItem) Uncheck() {
storeItem.item.Uncheck()
}
type ItemsStore struct {
items map[string]*StoreItem
timerQuit chan struct{}
onTick func(itemsStore *ItemsStore, stats *StatsStore)
}
func NewItemsStore() *ItemsStore {
return &ItemsStore{
items: make(map[string]*StoreItem),
timerQuit: make(chan struct{}),
}
}
func (itemsStore *ItemsStore) addItems(storeItems []StoreItem) {
for _, item := range storeItems {
i := item
i.item = systray.AddMenuItem(item.title, "")
itemsStore.items[item.title] = &i
if item.elemType == dynamic {
i.item.Disable()
}
if item.separator {
systray.AddSeparator()
}
}
}
func (itemsStore *ItemsStore) toggleDynamic(hide bool) {
for _, v := range itemsStore.items {
if v.elemType == dynamic {
if hide {
v.item.Hide()
} else {
v.item.Show()
}
}
}
}
// TODO: race condition bug
func (itemsStore *ItemsStore) watchClickEvents() {
// current workaround:
for _, v := range (*itemsStore).items {
go func(v *StoreItem) {
for {
<-v.item.ClickedCh
if v.onClick != nil {
v.onClick(v)
}
}
}(v)
}
}
func (itemsStore *ItemsStore) watchTimerEvents() {
// acquiring WireGuard stats
stats := &StatsStore{}
stats.Update()
ticker := time.NewTicker(time.Duration(conf.RefreshRate) * time.Second)
tickerFunc := func() {
if itemsStore.onTick != nil {
itemsStore.onTick(itemsStore, stats)
}
for _, v := range itemsStore.items {
if v.onTick != nil {
v.onTick(v, stats)
}
}
}
tickerFunc() // first init tick
go func() {
for {
select {
case <-conf.configChange:
conf.Update() // gather new config
ticker.Stop()
ticker = time.NewTicker(time.Duration(conf.RefreshRate) * time.Second)
case <-ticker.C:
stats.Update() // gather WireGuard stats
tickerFunc() // update GUI
case <-itemsStore.timerQuit:
ticker.Stop()
stats.Close() // close wireguardctrl client
conf.Close()
return
}
}
}()
}