feat: click envelope image to open with an image viewer

src/advice.rs

@@ -23,18 +23,24 @@ pub struct AdviceCard {
     #[do_not_track]
     metadata: Advice,
     texture: Option<gdk::Texture>,
+    file: Option<gio::File>,
 }
 
 #[derive(Debug)]
 pub enum AdviceCardCmds {
-    GotTexture(gdk::Texture),
+    GotTexture(gio::File, gdk::Texture),
     Error(LibraryError),
 }
 
+#[derive(Debug)]
+pub enum AdviceCardInput {
+    OpenFile
+}
+
 #[relm4::factory(pub)]
 impl FactoryComponent for AdviceCard {
     type Init = Advice;
-    type Input = ();
+    type Input = AdviceCardInput;
     type Output = ();
     type CommandOutput = AdviceCardCmds;
     type ParentWidget = gtk::FlowBox;
@@ -42,8 +48,8 @@ impl FactoryComponent for AdviceCard {
     /* TODO:
      * Action "View in Image viewer":
      *   Triggers:
-     *    - One click on "enlarge" button
-     *    - Double click on "texture" itself
+     *    - [x] One click on "enlarge" button
+     *    - [ ] Double click on "texture" itself
      *   (Is there a better way than this?)
      *   Create temporary file, let application open this file...
      */
@@ -78,6 +84,8 @@ impl FactoryComponent for AdviceCard {
                         set_icon_name: "four-arrows-pointing-outward-symbolic",
 
                         set_margin_all: 8,
+
+                        connect_clicked => AdviceCardInput::OpenFile,
                     },
 
                     #[wrap(Some)]
@@ -94,6 +102,7 @@ impl FactoryComponent for AdviceCard {
         let _self = Self {
             metadata: value.clone(),
             texture: None,
+            file: None,
             tracker: 0,
         };
 
@@ -119,7 +128,7 @@ impl FactoryComponent for AdviceCard {
                 file
             };
 
-            let image = glycin::Loader::new(file)
+            let image = glycin::Loader::new(file.clone())
                 .load()
                 .await
                 .expect("Image decoding failed");
@@ -128,7 +137,7 @@ impl FactoryComponent for AdviceCard {
                 .await
                 .expect("Image frame decoding failed");
 
-            AdviceCardCmds::GotTexture(frame.texture())
+            AdviceCardCmds::GotTexture(file, frame.texture())
         });
 
         _self
@@ -136,8 +145,21 @@ impl FactoryComponent for AdviceCard {
 
     fn update_cmd(&mut self, message: Self::CommandOutput, sender: FactorySender<Self>) {
         match message {
-            AdviceCardCmds::GotTexture(texture) => self.set_texture(Some(texture)),
+            AdviceCardCmds::GotTexture(file, texture) => {
+                self.set_texture(Some(texture));
+                self.set_file(Some(file));
+            },
             AdviceCardCmds::Error(err) => todo!(),
         };
     }
+
+    fn update(&mut self, message: Self::Input, sender: FactorySender<Self>) {
+        match message {
+            AdviceCardInput::OpenFile => {
+                let file_launcher = gtk::FileLauncher::new(self.get_file().as_ref());
+                file_launcher.set_always_ask(true);
+                file_launcher.launch(None::<&gtk::Window>, None::<&gio::Cancellable>, |_| {});
+            },
+        }
+    }
 }