fix issue caused by opening a menu over a prompt

pkg/gui/context.go

@@ -79,9 +79,10 @@ func (gui *Gui) pushContext(c types.Context, opts ...types.OnFocusOpts) error {
 
 	gui.State.ContextManager.Lock()
 
-	// push onto stack
+	if len(gui.State.ContextManager.ContextStack) == 0 {
+		gui.State.ContextManager.ContextStack = append(gui.State.ContextManager.ContextStack, c)
+	} else if c.GetKind() == types.SIDE_CONTEXT {
 		// if we are switching to a side context, remove all other contexts in the stack
-	if c.GetKind() == types.SIDE_CONTEXT {
 		for _, stackContext := range gui.State.ContextManager.ContextStack {
 			if stackContext.GetKey() != c.GetKey() {
 				if err := gui.deactivateContext(stackContext); err != nil {
@@ -91,13 +92,26 @@ func (gui *Gui) pushContext(c types.Context, opts ...types.OnFocusOpts) error {
 			}
 		}
 		gui.State.ContextManager.ContextStack = []types.Context{c}
-	} else if len(gui.State.ContextManager.ContextStack) == 0 || gui.currentContextWithoutLock().GetKey() != c.GetKey() {
-		// Do not append if the one at the end is the same context (e.g. opening a menu from a menu)
-		// In that case we'll just close the menu entirely when the user hits escape.
+	} else {
+		topContext := gui.currentContextWithoutLock()
+
+		// if we're pushing the same context on, we do nothing.
+		if topContext.GetKey() != c.GetKey() {
+			// if top one is a temporary popup, we remove it. Ideally you'd be able to
+			// escape back to previous temporary popups, but because we're currently reusing
+			// views for this, you might not be able to get back to where you previously were.
+			if topContext.GetKind() == types.TEMPORARY_POPUP {
+				if err := gui.deactivateContext(topContext); err != nil {
+					gui.State.ContextManager.Unlock()
+					return err
+				}
+
+				_, gui.State.ContextManager.ContextStack = slices.Pop(gui.State.ContextManager.ContextStack)
+			}
 
-		// TODO: think about other exceptional cases
 			gui.State.ContextManager.ContextStack = append(gui.State.ContextManager.ContextStack, c)
 		}
+	}
 
 	gui.State.ContextManager.Unlock()
 
@@ -111,7 +125,7 @@ func (gui *Gui) pushContextWithView(viewName string) error {
 	return gui.c.PushContext(gui.State.ViewContextMap.Get(viewName))
 }
 
-func (gui *Gui) returnFromContext() error {
+func (gui *Gui) popContext() error {
 	gui.State.ContextManager.Lock()
 
 	if len(gui.State.ContextManager.ContextStack) == 1 {
@@ -120,12 +134,10 @@ func (gui *Gui) returnFromContext() error {
 		return nil
 	}
 
-	n := len(gui.State.ContextManager.ContextStack) - 1
+	var currentContext types.Context
+	currentContext, gui.State.ContextManager.ContextStack = slices.Pop(gui.State.ContextManager.ContextStack)
 
-	currentContext := gui.State.ContextManager.ContextStack[n]
-	newContext := gui.State.ContextManager.ContextStack[n-1]
-
-	gui.State.ContextManager.ContextStack = gui.State.ContextManager.ContextStack[:n]
+	newContext := gui.State.ContextManager.ContextStack[len(gui.State.ContextManager.ContextStack)-1]
 
 	gui.g.SetCurrentContext(string(newContext.GetKey()))
 

pkg/gui/context/menu_context.go

@@ -36,7 +36,7 @@ func NewMenuContext(
 			Context: NewSimpleContext(NewBaseContext(NewBaseContextOpts{
 				ViewName:        "menu",
 				Key:             "menu",
-				Kind:            types.PERSISTENT_POPUP,
+				Kind:            types.TEMPORARY_POPUP,
 				OnGetOptionsMap: getOptionsMap,
 				Focusable:       true,
 			}), ContextCallbackOpts{

pkg/gui/gui_common.go

@@ -43,7 +43,7 @@ func (self *guiCommon) PushContext(context types.Context, opts ...types.OnFocusO
 }
 
 func (self *guiCommon) PopContext() error {
-	return self.gui.returnFromContext()
+	return self.gui.popContext()
 }
 
 func (self *guiCommon) CurrentContext() types.Context {

pkg/gui/types/context.go

@@ -8,12 +8,22 @@ import (
 type ContextKind int
 
 const (
+	// this is your files, branches, commits, contexts etc. They're all on the left hand side
+	// and you can cycle through them.
 	SIDE_CONTEXT ContextKind = iota
+	// This is either the left or right 'main' contexts that appear to the right of the side contexts
 	MAIN_CONTEXT
-	TEMPORARY_POPUP
+	// A persistent popup is one that has its own identity e.g. the commit message context.
+	// When you open a popup over it, we'll let you return to it upon pressing escape
 	PERSISTENT_POPUP
+	// A temporary popup is one that could be used for various things (e.g. a generic menu or confirmation popup).
+	// Because we re-use these contexts, they're temporary in that you can't return to them after you've switched from them
+	// to some other context, because the context you switched to might actually be the same context but rendering different content.
+	// We should really be able to spawn new contexts for menus/prompts so that we can actually return to old ones.
+	TEMPORARY_POPUP
+	// This contains the command log, underneath the main contexts.
 	EXTRAS_CONTEXT
-	// only used by the one global context
+	// only used by the one global context, purely for the sake of defining keybindings globally
 	GLOBAL_CONTEXT
 )