Make `Command` implementations platform-specific

This allows us to introduce a platform-specific `Action` to both `iced_native`
and `iced_web` and remove the `Clipboard` from `Application::update` to maintain
purity.

Additionally, this should let us implement further actions to let users query
and modify the shell environment (e.g. window, clipboard, and more!)

1 files changed, 3 insertions, 8 deletions

diff --git a/examples/integration_wgpu/src/controls.rs b/examples/integration_wgpu/src/controls.rs
index 36ee9b7e..824f9f53 100644
--- a/examples/integration_wgpu/src/controls.rs
+++ b/examples/integration_wgpu/src/controls.rs
@@ -1,7 +1,7 @@
 use iced_wgpu::Renderer;
 use iced_winit::{
-    slider, Align, Clipboard, Color, Column, Command, Element, Length, Program,
-    Row, Slider, Text,
+    slider, Align, Color, Column, Command, Element, Length, Program, Row,
+    Slider, Text,
 };
 
 pub struct Controls {
@@ -30,13 +30,8 @@ impl Controls {
 impl Program for Controls {
     type Renderer = Renderer;
     type Message = Message;
-    type Clipboard = Clipboard;
 
-    fn update(
-        &mut self,
-        message: Message,
-        _clipboard: &mut Clipboard,
-    ) -> Command<Message> {
+    fn update(&mut self, message: Message) -> Command<Message> {
         match message {
             Message::BackgroundColorChanged(color) => {
                 self.background_color = color;