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package helpers
import (
"fmt"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/gui/types"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/samber/lo"
)
type WindowHelper struct {
c *HelperCommon
viewHelper *ViewHelper
}
func NewWindowHelper(c *HelperCommon, viewHelper *ViewHelper) *WindowHelper {
return &WindowHelper{
c: c,
viewHelper: viewHelper,
}
}
// A window refers to a place on the screen which can hold one or more views.
// A view is a box that renders content, and within a window only one view will
// appear at a time. When a view appears within a window, it occupies the whole
// space. Right now most windows are 1:1 with views, except for commitFiles which
// is a view that moves between windows
func (self *WindowHelper) GetViewNameForWindow(window string) string {
viewName, ok := self.windowViewNameMap().Get(window)
if !ok {
panic(fmt.Sprintf("Viewname not found for window: %s", window))
}
return viewName
}
func (self *WindowHelper) GetContextForWindow(window string) types.Context {
viewName := self.GetViewNameForWindow(window)
context, ok := self.viewHelper.ContextForView(viewName)
if !ok {
panic("TODO: fix this")
}
return context
}
// for now all we actually care about is the context's view so we're storing that
func (self *WindowHelper) SetWindowContext(c types.Context) {
if c.IsTransient() {
self.resetWindowContext(c)
}
self.windowViewNameMap().Set(c.GetWindowName(), c.GetViewName())
}
func (self *WindowHelper) windowViewNameMap() *utils.ThreadSafeMap[string, string] {
return self.c.State().GetRepoState().GetWindowViewNameMap()
}
func (self *WindowHelper) CurrentWindow() string {
return self.c.CurrentContext().GetWindowName()
}
// assumes the context's windowName has been set to the new window if necessary
func (self *WindowHelper) resetWindowContext(c types.Context) {
for _, windowName := range self.windowViewNameMap().Keys() {
viewName, ok := self.windowViewNameMap().Get(windowName)
if !ok {
continue
}
if viewName == c.GetViewName() && windowName != c.GetWindowName() {
for _, context := range self.c.Contexts().Flatten() {
if context.GetKey() != c.GetKey() && context.GetWindowName() == windowName {
self.windowViewNameMap().Set(windowName, context.GetViewName())
}
}
}
}
}
// moves given context's view to the top of the window
func (self *WindowHelper) MoveToTopOfWindow(context types.Context) {
view := context.GetView()
if view == nil {
return
}
window := context.GetWindowName()
topView := self.TopViewInWindow(window)
if topView != nil && view.Name() != topView.Name() {
if err := self.c.GocuiGui().SetViewOnTopOf(view.Name(), topView.Name()); err != nil {
self.c.Log.Error(err)
}
}
}
func (self *WindowHelper) TopViewInWindow(windowName string) *gocui.View {
// now I need to find all views in that same window, via contexts. And I guess then I need to find the index of the highest view in that list.
viewNamesInWindow := self.viewNamesInWindow(windowName)
// The views list is ordered highest-last, so we're grabbing the last view of the window
var topView *gocui.View
for _, currentView := range self.c.GocuiGui().Views() {
if lo.Contains(viewNamesInWindow, currentView.Name()) && currentView.Visible {
topView = currentView
}
}
return topView
}
func (self *WindowHelper) viewNamesInWindow(windowName string) []string {
result := []string{}
for _, context := range self.c.Contexts().Flatten() {
if context.GetWindowName() == windowName {
result = append(result, context.GetViewName())
}
}
return result
}
func (self *WindowHelper) WindowForView(viewName string) string {
context, ok := self.viewHelper.ContextForView(viewName)
if !ok {
panic("todo: deal with this")
}
return context.GetWindowName()
}
func (self *WindowHelper) SideWindows() []string {
return []string{"status", "files", "branches", "commits", "stash"}
}
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