add offset / scrolling + clipboard support

src/testing/mod.rs

@@ -1,6 +1,7 @@
 use std::sync::Arc;
 
 use app::App;
+use arboard::Clipboard;
 use cosmic_text::Family;
 use render::Renderer;
 use ui::prelude::*;
@@ -22,6 +23,7 @@ pub struct Client {
     ui: Ui,
     info: WidgetId<Text>,
     focus: Option<WidgetId<TextEdit>>,
+    clipboard: Clipboard,
 }
 
 #[derive(Eq, PartialEq, Hash, Clone)]
@@ -127,6 +129,15 @@ impl Client {
             .add_static(&mut ui);
 
         let texts = Span::empty(Dir::DOWN).add_static(&mut ui);
+        let msg_area = (
+            Rect::new(Color::SKY),
+            texts
+                .offset(UiVec2::ZERO)
+                .edit_on(Sense::Scroll, |w, data| {
+                    w.amt += UiVec2::abs(data.scroll_delta * 50.0);
+                }),
+        )
+            .stack();
         let add_text = text_edit("add")
             .text_align(Align::Left)
             .size(30)
@@ -151,7 +162,7 @@ impl Client {
             })
             .add(&mut ui);
         let text_edit_scroll = (
-            (Rect::new(Color::SKY), texts).stack(),
+            msg_area,
             (
                 Rect::new(Color::WHITE.darker(0.9)),
                 (
@@ -217,6 +228,7 @@ impl Client {
             ui,
             info,
             focus: None,
+            clipboard: Clipboard::new().unwrap(),
         }
     }
 
@@ -249,14 +261,20 @@ impl Client {
                 if let Some(sel) = &self.focus
                     && event.state.is_pressed()
                 {
-                    match self.ui.text(sel).apply_event(&event, &self.input.modifiers) {
+                    let mut text = self.ui.text(sel);
+                    match text.apply_event(&event, &self.input.modifiers) {
                         TextInputResult::Unfocus => {
                             self.focus = None;
                         }
                         TextInputResult::Submit => {
                             self.run_event(&sel.clone(), Submit, ());
                         }
-                        _ => (),
+                        TextInputResult::Paste => {
+                            if let Ok(t) = self.clipboard.get_text() {
+                                text.insert(&t);
+                            }
+                        }
+                        TextInputResult::Unused | TextInputResult::Used => (),
                     }
                 }
             }