From d051f21597bb333ac10183aaa3214a292e9aa365 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector@hecrj.dev>
Date: Sat, 16 Sep 2023 15:40:16 +0200
Subject: Implement `Copy` and `Paste` actions for `text::Editor`

---
 core/src/text/editor.rs     |  5 ++++-
 examples/editor/src/main.rs |  2 +-
 graphics/src/text/editor.rs | 11 +++++++++++
 widget/src/text_editor.rs   | 11 ++++++++---
 4 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/core/src/text/editor.rs b/core/src/text/editor.rs
index 5532fac5..003557c1 100644
--- a/core/src/text/editor.rs
+++ b/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,
diff --git a/examples/editor/src/main.rs b/examples/editor/src/main.rs
index 2a70b34c..11819c69 100644
--- a/examples/editor/src/main.rs
+++ b/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),
 }
diff --git a/graphics/src/text/editor.rs b/graphics/src/text/editor.rs
index 1e375a25..1890cb82 100644
--- a/graphics/src/text/editor.rs
+++ b/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);
             }
diff --git a/widget/src/text_editor.rs b/widget/src/text_editor.rs
index ec7a6d1d..0bb6b7d3 100644
--- a/widget/src/text_editor.rs
+++ b/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))));
                 }
             }
         }
-- 
cgit