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lazygit/pkg/gui/app_status_manager.go

132 lines
2.5 KiB
Go

package gui
import (
"time"
"github.com/jesseduffield/generics/slices"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/sasha-s/go-deadlock"
)
// statusManager's job is to handle rendering of loading states and toast notifications
// that you see at the bottom left of the screen.
type statusManager struct {
statuses []appStatus
nextId int
mutex deadlock.Mutex
}
type appStatus struct {
message string
statusType string
id int
}
func (m *statusManager) removeStatus(id int) {
m.mutex.Lock()
defer m.mutex.Unlock()
m.statuses = slices.Filter(m.statuses, func(status appStatus) bool {
return status.id != id
})
}
func (m *statusManager) addWaitingStatus(message string) int {
m.mutex.Lock()
defer m.mutex.Unlock()
m.nextId += 1
id := m.nextId
newStatus := appStatus{
message: message,
statusType: "waiting",
id: id,
}
m.statuses = append([]appStatus{newStatus}, m.statuses...)
return id
}
func (m *statusManager) addToastStatus(message string) int {
m.mutex.Lock()
defer m.mutex.Unlock()
m.nextId++
id := m.nextId
newStatus := appStatus{
message: message,
statusType: "toast",
id: id,
}
m.statuses = append([]appStatus{newStatus}, m.statuses...)
go func() {
time.Sleep(time.Second * 2)
m.removeStatus(id)
}()
return id
}
func (m *statusManager) getStatusString() string {
if len(m.statuses) == 0 {
return ""
}
topStatus := m.statuses[0]
if topStatus.statusType == "waiting" {
return topStatus.message + " " + utils.Loader()
}
return topStatus.message
}
func (m *statusManager) showStatus() bool {
return len(m.statuses) > 0
}
func (gui *Gui) toast(message string) {
gui.statusManager.addToastStatus(message)
gui.renderAppStatus()
}
func (gui *Gui) renderAppStatus() {
go utils.Safe(func() {
ticker := time.NewTicker(time.Millisecond * 50)
defer ticker.Stop()
for range ticker.C {
appStatus := gui.statusManager.getStatusString()
gui.c.OnUIThread(func() error {
return gui.renderString(gui.Views.AppStatus, appStatus)
})
if appStatus == "" {
return
}
}
})
}
// withWaitingStatus wraps a function and shows a waiting status while the function is still executing
func (gui *Gui) withWaitingStatus(message string, f func() error) error {
go utils.Safe(func() {
id := gui.statusManager.addWaitingStatus(message)
defer func() {
gui.statusManager.removeStatus(id)
}()
gui.renderAppStatus()
if err := f(); err != nil {
gui.c.OnUIThread(func() error {
return gui.c.Error(err)
})
}
})
return nil
}