Add some convenient ID methods

examples/edit.rs

@@ -1,19 +1,19 @@
 extern crate cursive;
 
 use cursive::{Cursive};
-use cursive::view::{Dialog,IdView,EditView,Selector,TextView};
+use cursive::view::{Dialog,EditView,TextView};
 
 fn main() {
     let mut siv = Cursive::new();
 
     // Create a dialog with an edit text and a button.
-    siv.add_layer(Dialog::new(IdView::new("edit", EditView::new().min_length(20)))
+    siv.add_layer(Dialog::new(EditView::new().min_length(20).with_id("edit"))
                   .padding((1,1,1,0))
                   .title("Enter your name")
                   .button("Ok", |s| {
                       // When the button is clicked, read the text and print it in a new dialog.
                       let content = {
-                          let name = s.find::<EditView>(&Selector::Id("edit")).unwrap().get_content();
+                          let name = s.find_id::<EditView>("edit").unwrap().get_content();
                           format!("Hello {}!", name)
                       };
                       s.pop_layer();

src/lib.rs

@@ -168,6 +168,11 @@ impl Cursive {
         }
     }
 
+    /// Convenient method to use `find` with a `Selector::Id`.
+    pub fn find_id<V: View + Any>(&mut self, id: &str) -> Option<&mut V> {
+        self.find(&Selector::Id(id))
+    }
+
     /// Adds a global callback, triggered on the given key press when no view catches it.
     pub fn add_global_callback<F,E: ToEvent>(&mut self, event: E, cb: F)
         where F: Fn(&mut Cursive) + 'static

src/view/edit_view.rs

@@ -2,7 +2,7 @@ use ncurses;
 
 use theme::ColorPair;
 use vec::Vec2;
-use view::{View,SizeRequest};
+use view::{View,IdView,SizeRequest};
 use event::*;
 use printer::Printer;
 
@@ -46,6 +46,11 @@ impl EditView {
 
         self
     }
+
+    /// Wraps this view into an IdView with the given id.
+    pub fn with_id(self, label: &str) -> IdView<Self> {
+        IdView::new(label, self)
+    }
 }
 
 fn remove_char(s: &mut String, cursor: usize) {

src/view/mod.rs

@@ -29,12 +29,12 @@ use printer::Printer;
 pub use self::request::{DimensionRequest,SizeRequest};
 pub use self::scroll::ScrollBase;
 
+pub use self::id_view::IdView;
 pub use self::box_view::BoxView;
 pub use self::button::Button;
 pub use self::dialog::Dialog;
 pub use self::edit_view::EditView;
 pub use self::full_view::FullView;
-pub use self::id_view::IdView;
 pub use self::key_event_view::KeyEventView;
 pub use self::linear_layout::LinearLayout;
 pub use self::view_path::ViewPath;