Add model parameter to the Widget::init_view() method

Fix #32

Author: antoyo

Cargo.toml

@@ -6,7 +6,7 @@ documentation = "https://docs.rs/relm/"
 license = "MIT"
 name = "relm"
 repository = "https://github.com/antoyo/relm"
-version = "0.9.4"
+version = "0.9.5"
 
 [badges]
 travis-ci = { repository = "antoyo/relm" }

examples/simple.rs

@@ -45,7 +45,7 @@ pub struct LabelModel {
 
 #[widget]
 impl Widget for Label {
-    fn init_view(&self) {
+    fn init_view(&self, _model: &mut LabelModel) {
         self.label.set_text("Test");
     }
 

examples/webkit-test/src/main.rs

@@ -50,7 +50,7 @@ pub enum Msg {
 
 #[widget]
 impl Widget for Win {
-    fn init_view(&self) {
+    fn init_view(&self, _model: &mut Model) {
         self.webview.load_uri("https://crates.io/");
     }
 

src/lib.rs

@@ -42,6 +42,8 @@
 
 /*
  * TODO: look at how Elm works with the <canvas> element.
+ * TODO: allow adding arbitrary methods in the impl for the #[widget] to allow updating the models
+ * in method external to the trait.
  * TODO: support msg variant with multiple values?
    TODO: after switching to futures-glib, remove the unnecessary Arc, Mutex and Clone.
  * FIXME: the widget-list example can trigger (and is broken) the following after removing widgets, adding new
@@ -190,10 +192,11 @@ macro_rules! use_impl_self_type {
 }
 
 // TODO: remove this hack.
-/// A small type to avoid running the destructor of `T`
+#[doc(hidden)]
 pub struct ManuallyDrop<T> { inner: Option<T> }
 
 impl<T> ManuallyDrop<T> {
+    #[doc(hidden)]
     pub fn new(t: T) -> ManuallyDrop<T> {
         ManuallyDrop { inner: Some(t) }
     }
@@ -400,7 +403,10 @@ fn create_widget<WIDGET>(remote: &Remote, model_param: WIDGET::ModelParam) -> Co
         };
         (view, relm.model)
     };
-    widget.init_view();
+    {
+        let mut model_guard = model.lock().unwrap();
+        widget.init_view(&mut *model_guard);
+    }
 
     {
         let mut widget = widget.clone();

src/widget.rs

@@ -41,7 +41,7 @@ pub trait Widget
     /// Update the view after it is initially created.
     /// This method is only useful when using the `#[widget]` attribute, because when not using it,
     /// you can use the [`view()`](trait.Widget.html#tymethod.view) method instead.
-    fn init_view(&self) {
+    fn init_view(&self, _model: &mut Self::Model) {
     }
 
     /// Create the initial model.