Fix empty file on save

internal/ui/main.go

@@ -1,7 +1,6 @@
 package ui
 
 import (
-	"fmt"
 	"strings"
 
 	"fyne.io/fyne/v2"
@@ -29,6 +28,11 @@ type FileHandler interface {
 	GetReference() interface{}
 }
 
+type TabProvider interface {
+	SetTab(tab *container.TabItem)
+	Tab() *container.TabItem
+}
+
 type ppfApp struct {
 	App    fyne.App
 	Window fyne.Window
@@ -94,6 +98,7 @@ func (ppf *ppfApp) NewProtocolFile() {
 	item := ppf.OpenTabs.Selected()
 	item.Text = pfh.Name()
 	item.Content = pfh.GetWorkarea()
+	pfh.SetTab(item)
 }
 
 func (ppf *ppfApp) NewPacketFile() {
@@ -114,6 +119,7 @@ func (ppf *ppfApp) OpenProtocolFile(path string) {
 	item := ppf.OpenTabs.Selected()
 	item.Text = pfh.Path()
 	item.Content = pfh.GetWorkarea()
+	pfh.SetTab(item)
 }
 
 func (ppf *ppfApp) OpenPacketFile(path string) {
@@ -123,14 +129,15 @@ func (ppf *ppfApp) OpenPacketFile(path string) {
 func (ppf *ppfApp) SaveFile(path string) {
 	item := ppf.OpenTabs.Selected()
 	for _, fh := range ppf.OpenObjects {
-		if fh.Path() == item.Text {
+		if fh.(TabProvider).Tab() == item {
 			fh.SaveAs(path)
 		}
 	}
 	// if there exists another one with the same path, (max one!!!)
+	/* // skip that check for now
 	existingTab := -1
 	for i, v := range ppf.OpenTabs.Items {
-		fmt.Printf("tab %d, path %s", i, v.Text)
+		fmt.Printf("existing tab %d, path %s\n", i, v.Text)
 
 		if v.Text == path && i != ppf.OpenTabs.SelectedIndex() {
 			existingTab = i
@@ -140,7 +147,7 @@ func (ppf *ppfApp) SaveFile(path string) {
 		ppf.OpenTabs.Items = append(ppf.OpenTabs.Items[:existingTab], ppf.OpenTabs.Items[existingTab+1:]...)
 		fmt.Printf("removing %d", existingTab)
 		ppf.OpenTabs.Refresh()
-	}
+	} */
 	item.Text = path
 	ppf.OpenTabs.Refresh()
 }

internal/ui/protocolfilehandler.go

@@ -1,7 +1,10 @@
 package ui
 
 import (
+	"fmt"
+
 	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
 	"gitea.mmo.to/ProtocolPacketForger/ppf/protocol"
 	"gitea.mmo.to/ProtocolPacketForger/ppf/protocolctl"
 )
@@ -12,6 +15,7 @@ type ProtocolFileHandler struct {
 	name           string
 	path           string
 	changed        bool
+	tab            *container.TabItem
 
 	Reference *protocol.ProtocolStructure
 }
@@ -21,6 +25,7 @@ func NewProtocolFileHandler() *ProtocolFileHandler {
 	pfh.name = "*new"
 	pfh.changed = true
 	pfh.ProtocolEditor = NewProtocolEditor(protocolctl.NewProtocolStructure())
+	pfh.Reference = pfh.ProtocolEditor.Reference
 	return &pfh
 }
 
@@ -50,14 +55,16 @@ func (pfh *ProtocolFileHandler) Open(path string) error {
 	return pfh.Load()
 }
 func (pfh *ProtocolFileHandler) Save() error {
-	protocolctl.Save(pfh.Reference, pfh.path)
+	err := protocolctl.Save(pfh.Reference, pfh.path)
+	if err != nil {
+		fmt.Printf("%v\n", err)
+	}
 	pfh.changed = false
-	return nil
+	return err
 }
 func (pfh *ProtocolFileHandler) SaveAs(path string) error {
 	pfh.path = path
-	pfh.Save()
+	return pfh.Save()
-	return nil
 }
 func (pfh *ProtocolFileHandler) Close() error {
 	return pfh.Save()
@@ -73,3 +80,11 @@ func (pfh *ProtocolFileHandler) HasChanged() bool {
 func (pfh *ProtocolFileHandler) GetReference() interface{} {
 	return pfh.Reference
 }
+
+func (pfh *ProtocolFileHandler) Tab() *container.TabItem {
+	return pfh.tab
+}
+
+func (pfh *ProtocolFileHandler) SetTab(tab *container.TabItem) {
+	pfh.tab = tab
+}