working loading and saving of files with dialog from rust

This means we are loading and saving files with the rfd crate which
utilizes platform appropriate dialogs for saving and loading files. We
can start to use this in all other file dialog locations to make sure
we are getting the right files.

It uses xdg-desktop-portals on linux so we will always use the
appropriate file dialog for each desktop environment.

src/main.cpp

@@ -186,6 +186,10 @@ int main(int argc, char *argv[])
                    &ServiceItemMod::itemRemoved,
                    slideMod.get(),
                    &SlideyMod::removeItemFromService);
+  QObject::connect(serviceItemModel.get(),
+                   &ServiceItemMod::cleared,
+                   slideMod.get(),
+                   &SlideyMod::clear);
   // QObject::connect(serviceItemModel.get(),
   //                  SIGNAL(allRemoved()),
   //                  slideMod.get(),

src/qml/main.qml

@@ -39,14 +39,17 @@ Kirigami.ApplicationWindow {
         Controls.Menu {
             title: qsTr("File")
             Controls.MenuItem { text: qsTr("New...") }
-            Controls.MenuItem { text: qsTr("Open...") }
+            Controls.MenuItem {
+                text: qsTr("Open...")
+                onTriggered: load()
+            }
             Controls.MenuItem {
                 text: qsTr("Save")
-                onTriggered: saveFileDialog.open()
+                onTriggered: save()
             }
             Controls.MenuItem {
                 text: qsTr("Save As...")
-                onTriggered: save()
+                onTriggered: saveAs()
             }
             Controls.MenuSeparator { }
             Controls.MenuItem { text: qsTr("Quit") }
@@ -130,7 +133,7 @@ Kirigami.ApplicationWindow {
 
     Loader {
         id: menuLoader
-        active: Kirigami.Settings.hasPlatformMenuBar
+        active: true
         sourceComponent: globalMenuComponent
         onLoaded: console.log("Loaded global menu")
     }
@@ -145,17 +148,17 @@ Kirigami.ApplicationWindow {
                 Labs.MenuItem {
                     text: qsTr("Open...")
                     shortcut: "Ctrl+O"
-                    onTriggered: loadFileDialog.open()
+                    onTriggered: load()
                 }
                 Labs.MenuItem {
                     text: qsTr("Save")
                     shortcut: "Ctrl+S"
-                    onTriggered: fileHelper.saveFile()
+                    onTriggered: save()
                 }
                 Labs.MenuItem {
                     text: qsTr("Save As...")
                     shortcut: "Ctrl+Shift+S"
-                    onTriggered: fileHelper.saveFile()
+                    onTriggered: saveAs()
                 }
                 Labs.MenuSeparator { }
                 Labs.MenuItem {
@@ -254,6 +257,7 @@ Kirigami.ApplicationWindow {
     }
 
     function save() {
+        const saveFile = RSettings.lastSaveFile;
         const file = fileHelper.saveFile();
         const saved = mainPage.serviceItems.save(file);
         saved ? RSettings.setSaveFile(file)
@@ -263,15 +267,22 @@ Kirigami.ApplicationWindow {
     }
 
     function saveAs() {
-        
+        const file = fileHelper.saveFile();
+        const saved = mainPage.serviceItems.save(file);
+        saved ? RSettings.setSaveFile(file)
+            : console.log("File: " + file + " wasn't saved");
+        saved ? showPassiveNotification("SAVED! " + file)
+            : showPassiveNotification("FAILED!");
     }
 
-    function load(file) {
+    function load() {
+        const file = fileHelper.loadFile();
         const loaded = mainPage.serviceItems.load(file);
         loaded ? showPassiveNotification("Loaded: " + file)
             : showPassiveNotification("FAILED!");
-        /* console.log("Number of items: " + loaded.length); */
-        /* console.log(loaded[0].audio); */
+        loaded ? RSettings.loadFile = file
+            : showPassiveNotification("Didn't set loadfile!");
+        showPassiveNotification(RSettings.loadFile);
     }
 
     Component.onCompleted: {

src/rust/file_helper.rs

@@ -91,5 +91,25 @@ mod file_helper {
                 QUrl::default()
             }
         }
+
+        #[qinvokable]
+        pub fn load_file(self: Pin<&mut Self>) -> QUrl {
+            let file = FileDialog::new()
+                .set_title("Load Presentation")
+                .pick_file();
+            if let Some(file) = file {
+                println!("loading-file: {:?}", file);
+                let mut string =
+                    String::from(file.to_str().unwrap_or(""));
+                if string.is_empty() {
+                    QUrl::default()
+                } else {
+                    string.insert_str(0, "file://");
+                    QUrl::from(string.as_str())
+                }
+            } else {
+                QUrl::default()
+            }
+        }
     }
 }

src/rust/service_item_model.rs

@@ -114,6 +114,7 @@ mod service_item_model {
             // index: &'a i32,
             item: &'a QMap_QString_QVariant,
         },
+        Cleared {},
     }
 
     enum Role {
@@ -147,11 +148,13 @@ mod service_item_model {
     impl qobject::ServiceItemMod {
         #[qinvokable]
         pub fn clear(mut self: Pin<&mut Self>) {
+            println!("CLEARING ALL ITEMS");
             unsafe {
                 self.as_mut().begin_reset_model();
                 self.as_mut().service_items_mut().clear();
                 self.as_mut().end_reset_model();
             }
+            self.emit(Signals::Cleared {});
         }
 
         #[qinvokable]
@@ -734,6 +737,7 @@ mod service_item_model {
 
         #[qinvokable]
         pub fn load(mut self: Pin<&mut Self>, file: QUrl) -> bool {
+            self.as_mut().clear();
             println!("file is: {file}");
             let lfr = fs::File::open(
                 file.to_local_file().unwrap_or_default().to_string(),

src/rust/settings.rs

@@ -24,6 +24,8 @@ mod settings {
         sound_effect: QString,
         #[qproperty]
         last_save_file: QUrl,
+        #[qproperty]
+        loaded_file: QUrl,
     }
 
     impl Default for Settings {
@@ -33,6 +35,7 @@ mod settings {
                 screen: QString::from(""),
                 sound_effect: QString::from(""),
                 last_save_file: QUrl::from(""),
+                loaded_file: QUrl::from(""),
             }
         }
     }
@@ -62,7 +65,10 @@ mod settings {
                             .get("General", "lastSaveFile");
                         println!("{:?}", sf);
                         if let Some(s) = sf {
-                            self.set_last_save_file(QUrl::from(&s));
+                            self.as_mut()
+                                .set_last_save_file(QUrl::from(&s));
+                            self.as_mut()
+                                .set_loaded_file(QUrl::from(&s));
                             println!("{s}");
                         } else {
                             println!("error loading last save file");

src/rust/slide_model.rs

@@ -146,6 +146,7 @@ mod slide_model {
 
         #[qinvokable]
         pub fn clear(mut self: Pin<&mut Self>) {
+            println!("CLEARING ALL SLIDES");
             unsafe {
                 self.as_mut().begin_reset_model();
                 self.as_mut().slides_mut().clear();