Add dummy menu for the web platform (#7)

* Add dummy menu for the web platform

* Bump web-time version

Cargo.toml

@@ -212,7 +212,7 @@ atomic-waker = "1"
 js-sys = "0.3.64"
 wasm-bindgen = "0.2"
 wasm-bindgen-futures = "0.4"
-web-time = "0.2"
+web-time = "1"
 
 [target.'cfg(target_family = "wasm")'.dev-dependencies]
 console_log = "1"

src/platform_impl/web/menu.rs

@@ -0,0 +1,18 @@
+/// Dummy menu: there is no generic menu for web applications
+pub struct Menu;
+
+impl Menu {
+    pub fn new() -> Menu {
+        Menu
+    }
+
+    pub fn new_for_popup() -> Menu {
+        Menu
+    }
+
+    pub fn add_dropdown(&mut self, _menu: Menu, _text: &str, _enabled: bool) {}
+
+    pub fn add_item(&mut self, _id: u32, _text: &str, _selected: Option<bool>, _enabled: bool) {}
+
+    pub fn add_separator(&mut self) {}
+}

src/platform_impl/web/mod.rs

@@ -22,6 +22,7 @@ mod device;
 mod error;
 mod event_loop;
 mod keyboard;
+mod menu;
 mod monitor;
 mod window;
 
@@ -33,6 +34,7 @@ pub use self::error::OsError;
 pub(crate) use self::event_loop::{
     EventLoop, EventLoopProxy, EventLoopWindowTarget, PlatformSpecificEventLoopAttributes,
 };
+pub(crate) use self::menu::Menu;
 pub use self::monitor::{MonitorHandle, VideoMode};
 pub use self::window::{PlatformSpecificWindowBuilderAttributes, Window, WindowId};