Implement Copy and Paste actions for text::Editor

core/src/text/editor.rs

@@ -1,6 +1,8 @@
 use crate::text::LineHeight;
 use crate::{Pixels, Point, Rectangle, Size};
 
+use std::sync::Arc;
+
 pub trait Editor: Sized + Default {
     type Font: Copy + PartialEq + Default;
 
@@ -30,13 +32,14 @@ pub trait Editor: Sized + Default {
     );
 }
 
-#[derive(Debug, Clone, Copy, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum Action {
     Move(Motion),
     Select(Motion),
     SelectWord,
     SelectLine,
     Insert(char),
+    Paste(Arc<String>),
     Enter,
     Backspace,
     Delete,

examples/editor/src/main.rs

@@ -9,7 +9,7 @@ struct Editor {
     content: text_editor::Content,
 }
 
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone)]
 enum Message {
     Edit(text_editor::Action),
 }

graphics/src/text/editor.rs

@@ -398,6 +398,17 @@ impl editor::Editor for Editor {
                 editor
                     .action(font_system.raw(), cosmic_text::Action::Insert(c));
             }
+            Action::Paste(text) => {
+                editor.insert_string(&text, None);
+
+                // TODO: Fix cosmic-text
+                // Cursor should be marked as moved after `insert_string`.
+                let cursor = editor.cursor();
+
+                editor
+                    .buffer_mut()
+                    .shape_until_cursor(font_system.raw(), cursor);
+            }
             Action::Enter => {
                 editor.action(font_system.raw(), cosmic_text::Action::Enter);
             }

widget/src/text_editor.rs

@@ -12,6 +12,7 @@ use crate::core::{
 };
 
 use std::cell::RefCell;
+use std::sync::Arc;
 
 pub use crate::style::text_editor::{Appearance, StyleSheet};
 pub use text::editor::{Action, Motion};
@@ -253,10 +254,14 @@ where
             Update::Edit(action) => {
                 shell.publish(on_edit(action));
             }
-            Update::Copy => todo!(),
+            Update::Copy => {
+                if let Some(selection) = self.content.selection() {
+                    clipboard.write(selection);
+                }
+            }
             Update::Paste => {
-                if let Some(_contents) = clipboard.read() {
-                    todo!()
+                if let Some(contents) = clipboard.read() {
+                    shell.publish(on_edit(Action::Paste(Arc::new(contents))));
                 }
             }
         }