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package ui
import (
"sync"
"syscall"
"github.com/wagoodman/dive/dive/image"
"github.com/wagoodman/dive/runtime/ui/key"
"github.com/wagoodman/dive/runtime/ui/layout"
"github.com/wagoodman/dive/runtime/ui/layout/compound"
"github.com/awesome-gocui/gocui"
"github.com/sirupsen/logrus"
"github.com/wagoodman/dive/dive/filetree"
)
const debug = false
// type global
type app struct {
gui *gocui.Gui
controllers *Controller
layout *layout.Manager
}
var (
once sync.Once
appSingleton *app
)
func newApp(gui *gocui.Gui, imageName string, analysis *image.AnalysisResult, cache filetree.Comparer) (*app, error) {
var err error
once.Do(func() {
var controller *Controller
var globalHelpKeys []*key.Binding
controller, err = NewCollection(gui, imageName, analysis, cache)
if err != nil {
return
}
// note: order matters when adding elements to the layout
lm := layout.NewManager()
lm.Add(controller.views.Status, layout.LocationFooter)
lm.Add(controller.views.Filter, layout.LocationFooter)
lm.Add(compound.NewLayerDetailsCompoundLayout(controller.views.Layer, controller.views.LayerDetails, controller.views.ImageDetails), layout.LocationColumn)
lm.Add(controller.views.Tree, layout.LocationColumn)
// todo: access this more programmatically
if debug {
lm.Add(controller.views.Debug, layout.LocationColumn)
}
gui.Cursor = false
//g.Mouse = true
gui.SetManagerFunc(lm.Layout)
// var profileObj = profile.Start(profile.CPUProfile, profile.ProfilePath("."), profile.NoShutdownHook)
//
// onExit = func() {
// profileObj.Stop()
// }
appSingleton = &app{
gui: gui,
controllers: controller,
layout: lm,
}
var infos = []key.BindingInfo{
{
ConfigKeys: []string{"keybinding.quit"},
OnAction: appSingleton.quit,
Display: "Quit",
},
{
ConfigKeys: []string{"keybinding.toggle-view"},
OnAction: controller.ToggleView,
Display: "Switch view",
},
{
Key: gocui.KeyArrowRight,
OnAction: controller.NextPane,
},
{
Key: gocui.KeyArrowLeft,
OnAction: controller.PrevPane,
},
{
ConfigKeys: []string{"keybinding.filter-files"},
OnAction: controller.ToggleFilterView,
IsSelected: controller.views.Filter.IsVisible,
Display: "Filter",
},
}
globalHelpKeys, err = key.GenerateBindings(gui, "", infos)
if err != nil {
return
}
controller.views.Status.AddHelpKeys(globalHelpKeys...)
// perform the first update and render now that all resources have been loaded
err = controller.UpdateAndRender()
if err != nil {
return
}
})
return appSingleton, err
}
// var profileObj = profile.Start(profile.MemProfile, profile.ProfilePath("."), profile.NoShutdownHook)
// var onExit func()
// debugPrint writes the given string to the debug pane (if the debug pane is enabled)
// func debugPrint(s string) {
// if controllers.Tree != nil && controllers.Tree.gui != nil {
// v, _ := controllers.Tree.gui.View("debug")
// if v != nil {
// if len(v.BufferLines()) > 20 {
// v.Clear()
// }
// _, _ = fmt.Fprintln(v, s)
// }
// }
// }
// quit is the gocui callback invoked when the user hits Ctrl+C
func (a *app) quit() error {
// profileObj.Stop()
// onExit()
return gocui.ErrQuit
}
// handle ctrl+z
func handle_ctrl_z(g *gocui.Gui, v *gocui.View) error {
gocui.Suspend()
if err := syscall.Kill(syscall.Getpid(), syscall.SIGSTOP); err != nil {
return err
}
return gocui.Resume()
}
// Run is the UI entrypoint.
func Run(imageName string, analysis *image.AnalysisResult, treeStack filetree.Comparer) error {
var err error
g, err := gocui.NewGui(gocui.OutputNormal, true)
if err != nil {
return err
}
defer g.Close()
_, err = newApp(g, imageName, analysis, treeStack)
if err != nil {
return err
}
key, mod := gocui.MustParse("Ctrl+Z")
if err := g.SetKeybinding("", key, mod, handle_ctrl_z); err != nil {
return err
}
if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
logrus.Error("main loop error: ", err)
return err
}
return nil
}
|
