feat: implement win.save-file-as action

Cargo.lock

@@ -82,6 +82,7 @@ dependencies = [
  "gio",
  "glib",
  "gtk4",
+ "once_cell",
  "relative-path",
  "serde",
  "serde_json",

Cargo.toml

@@ -15,3 +15,4 @@ relative-path = "^1.5.0"
 gdk = { version = "^0.3.0", package = "gdk4"}
 sourceview = { package = "sourceview5", version = "^0.1.0", git = "https://github.com/EchidnaHQ/sourceview" }
 webbrowser = { version = "^0.5.5" }
+once_cell = "1"

src/components/editor/imp.rs

@@ -2,9 +2,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+use glib::{ParamFlags, ParamSpec, Value};
 use gtk::prelude::*;
 use gtk::subclass::prelude::*;
 use gtk::CompositeTemplate;
+use once_cell::sync::Lazy;
+use std::cell::RefCell;
 
 #[derive(Default, CompositeTemplate)]
 #[template(file = "./editor.ui")]
@@ -13,6 +16,7 @@ pub struct EchidnaCoreEditor {
     pub minimap: TemplateChild<sourceview::Map>,
     #[template_child]
     pub sourceview: TemplateChild<sourceview::View>,
+    pub file: RefCell<sourceview::File>,
 }
 
 #[glib::object_subclass]
@@ -30,6 +34,39 @@ impl ObjectSubclass for EchidnaCoreEditor {
     }
 }
 
-impl ObjectImpl for EchidnaCoreEditor {}
+impl ObjectImpl for EchidnaCoreEditor {
+    fn properties() -> &'static [ParamSpec] {
+        static PROPERTIES: Lazy<Vec<ParamSpec>> = Lazy::new(|| {
+            vec![ParamSpec::new_object(
+                "file",
+                "file",
+                "the file of the editor",
+                sourceview::File::static_type(),
+                ParamFlags::READWRITE,
+            )]
+        });
+
+        PROPERTIES.as_ref()
+    }
+
+    fn set_property(&self, _obj: &Self::Type, _id: usize, value: &Value, spec: &ParamSpec) {
+        match spec.name() {
+            "file" => {
+                let file: sourceview::File = value
+                    .get()
+                    .expect("The file needs to be a sourceview::File");
+                self.file.replace(file);
+            }
+            _ => unimplemented!(),
+        }
+    }
+
+    fn property(&self, _obj: &Self::Type, _id: usize, spec: &ParamSpec) -> Value {
+        match spec.name() {
+            "file" => self.file.borrow().to_value(),
+            _ => unimplemented!(),
+        }
+    }
+}
 impl WidgetImpl for EchidnaCoreEditor {}
 impl BoxImpl for EchidnaCoreEditor {}

src/components/editor/mod.rs

@@ -14,7 +14,7 @@ glib::wrapper! {
 }
 
 impl EchidnaCoreEditor {
-    pub fn new<P: glib::IsA<sourceview::File>>(file: Option<&P>) -> Self {
+    pub fn new(file: Option<sourceview::File>) -> Self {
         let this: Self =
             glib::Object::new(&[]).expect("Failed to create 'EchidnaCoreEditor' component.");
         let this_imp = this.to_imp();
@@ -23,10 +23,12 @@ impl EchidnaCoreEditor {
 
         if file.is_some() {
             let file = file.unwrap();
-
             let file_location = file
                 .location()
                 .expect("file is required to have a location");
+            
+                this.set_property("file", &file).expect("Could not set the 'file' property of EchidnaCoreEditor");
+
             let cancellable = gio::Cancellable::new();
             let filepath = file_location.path().expect("No filepath");
             let file_info_result =
@@ -48,7 +50,7 @@ impl EchidnaCoreEditor {
                             None => {}
                         }
 
-                        let file_loader: FileLoader = FileLoader::new(&buffer, file);
+                        let file_loader: FileLoader = FileLoader::new(&buffer, &file);
 
                         file_loader.load_async(
                             glib::Priority::default(),
@@ -75,4 +77,8 @@ impl EchidnaCoreEditor {
     pub fn to_imp(&self) -> &imp::EchidnaCoreEditor {
         imp::EchidnaCoreEditor::from_instance(self)
     }
+
+    pub fn file(&self) -> sourceview::File {
+        self.property("file").expect("Could not get property 'file' of EchidnaCoreEditor").get::<sourceview::File>().expect("Could not get property 'file' of EchidnaCoreEditor because its type is not IsA<sourceview::File>")
+    }
 }

src/components/window/file.rs

@@ -3,16 +3,17 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 use crate::components::editor::EchidnaCoreEditor;
-// use gio::Cancellable;
-use glib::clone;
+use gio::Cancellable;
+use glib::{clone, Priority};
 use gtk::{
     prelude::*, subclass::prelude::*, FileChooserAction, FileChooserDialog, Label, ResponseType,
 };
-use sourceview::File;
+use sourceview::{prelude::*, Buffer, File, FileSaver};
 
 pub trait FileImplementedEditor {
     fn action_open_file(&self);
     fn open_file(notebook: &gtk::Notebook, file: gio::File);
+    fn action_save_file_as(&self);
 }
 
 impl FileImplementedEditor for super::EchidnaWindow {
@@ -53,14 +54,14 @@ impl FileImplementedEditor for super::EchidnaWindow {
                 let file = dialog.file().expect("");
                 Self::open_file(&super::imp::EchidnaWindow::from_instance(&window).notebook, file);
 
-           } else if response == ResponseType::Cancel {
+            }
                        dialog.destroy();
-           }  }));
+            }));
     }
 
     fn open_file(notebook: &gtk::Notebook, file_location: gio::File) {
         let file = File::builder().location(&file_location).build();
-        let editor_page = EchidnaCoreEditor::new(Some(&file));
+        let editor_page = EchidnaCoreEditor::new(Some(file));
         notebook.prepend_page(
             &editor_page,
             Some(&Label::new(Some(
@@ -74,4 +75,63 @@ impl FileImplementedEditor for super::EchidnaWindow {
             ))),
         );
     }
+
+    fn action_save_file_as(&self) {
+        let dialog = FileChooserDialog::new(
+            Some("Save File As"),
+            Some(self),
+            FileChooserAction::Save,
+            &[
+                ("Cancel", ResponseType::Cancel),
+                ("Save", ResponseType::Accept),
+            ],
+        );
+
+        dialog.set_current_name("untitled");
+
+        dialog.show();
+
+        dialog.connect_response(clone!( @weak self as window, =>
+        move |dialog, response| {
+            if response == ResponseType::Accept {
+                let file = dialog.file().expect("");
+                let window_imp = window.to_imp();
+                let page: EchidnaCoreEditor;
+
+                match window_imp.notebook
+                    .nth_page(
+                        Some(window_imp.notebook
+                            .current_page()
+                            .expect(
+                                "No tabs is the current tab, probably all tabs closed. No files to save"
+                            )
+                        )
+                    ).expect(
+                        "Couldn't get the page of the current index. Try again."
+                    ).downcast::<EchidnaCoreEditor>() {
+                    Ok(res) => page = res,
+                    Err(e) => panic!(format!("We got an error when trying to downcast the current tab page into EchidnaCoreEditor:\n{}", e))
+                }
+
+                let buffer: Buffer = page.to_imp().sourceview.buffer().downcast().expect("Could not downcast the editor's buffer to GtkSourceBuffer.");
+                let cancellable = Cancellable::new();
+
+                let file_saver = FileSaver::with_target(
+                    &buffer,
+                     &page.file(), &file);
+                file_saver.save_async(
+                    Priority::default(),
+                    Some(&cancellable),
+                    |_, _| {},
+                    |result| {
+                        if result.is_err() {
+                            panic!(format!("Found an error while saving the file:\n{}", result.err().expect("No error")))
+                        }
+                    });
+
+            }
+                dialog.destroy();
+
+            }));
+    }
 }

src/components/window/menu.ui

@@ -51,6 +51,10 @@
                     <attribute name="label">Save</attribute>
                     <attribute name="action">win.save</attribute>
                 </item>
+                <item>
+                    <attribute name="label">Save As...</attribute>
+                    <attribute name="action">win.save-file-as</attribute>
+                </item>
                 <item>
                     <attribute name="label">Save All</attribute>
                     <attribute name="action">win.save-all</attribute>

src/components/window/menubar.rs

@@ -24,7 +24,6 @@ impl MenubarImplementedEditor for EchidnaWindow {
             .expect("Could not get object 'menu' from builder.");
         app.set_menubar(Some(&menubar));
         self.set_show_menubar(true);
-
         {
             let act_exit: SimpleAction = SimpleAction::new("exit", None);
             app.add_action(&act_exit);
@@ -111,5 +110,15 @@ impl MenubarImplementedEditor for EchidnaWindow {
                     window.action_open_file();
             }));
         }
+        {
+            let action_save_file_as = SimpleAction::new("save-file-as", None);
+
+            self.add_action(&action_save_file_as);
+
+            action_save_file_as.connect_activate(clone!(@weak self as window =>
+                move |_action, _variant| {
+                window.action_save_file_as();
+            }));
+        }
     }
 }