Add support for multi-line pasting

Cargo.lock

@@ -489,6 +489,7 @@ version = "0.1.0"
 dependencies = [
  "exoquant",
  "iced",
+ "iced_native",
  "image",
 ]
 

Cargo.toml

@@ -15,3 +15,4 @@ image = "0.23.14"
 
 # Display windows & graphics
 iced = "0.3.0"
+iced_native = "0.4.0"

src/app/lyrics.rs

@@ -23,25 +23,67 @@ impl Lyrics {
 		}
 	}
 
+	pub fn insert_text(&mut self, text: String) {
+
+		let mut pieces = text.trim_end()
+			.split('\n')
+			.map(str::trim);
+
+		let (line_no, current_line) = self.current_line_mut();
+
+		current_line.deselect();
+		current_line.value.push_str(pieces.next().unwrap());
+
+		let pieces = pieces
+			.collect::<Vec<_>>()
+			.into_iter()
+			.map(str::to_owned)
+			.map(Lyric::new_with_value);
+		let n_pieces = pieces.size_hint().0;
+
+		self.lines.splice((line_no + 1)..(line_no + 1), pieces);
+
+		self.lines[line_no + n_pieces].select();
+	}
+
 	pub fn update_line(&mut self, new_content: String, line_no: usize) {
-		self.lines[line_no].set_content(new_content);
+		self.lines[line_no].value = new_content;
 	}
 
 	pub fn advance_line(&mut self, current_line: usize) {
 		let new_line = current_line + 1;
 
-		if new_line == self.lines.len() {
+		let line = if new_line == self.lines.len() {
-			self.lines.push(Lyric::new())
+			self.insert_line(new_line, None)
-		}
+		} else {
-
 			self.lines.get_mut(new_line)
 				.expect("Unexpected .advance_line with index beyond # of lines")
-			.select();
+		};
+
+		line.select();
+
 		self.lines.get_mut(current_line)
 			.unwrap()
 			.deselect();
 	}
 
+	pub fn insert_line(&mut self, index: usize, content: Option<String>) -> &mut Lyric {
+		self.lines.insert(index, match content {
+			Some(content) => Lyric::new_with_value(content),
+			None => Lyric::new(),
+		});
+		self.lines.get_mut(index).unwrap()
+	}
+
+	pub fn current_line_mut(&mut self) -> (usize, &mut Lyric) {
+		self.lines
+			.iter_mut()
+			.enumerate()
+			.filter(|(_, l)| l.is_selected())
+			.next()
+			.expect("no line currently selected")
+	}
+
 	pub fn view(&mut self, theme: Theme) -> Element<Message> {
 		let is_sole_line = self.lines.len() == 1;
 		self.lines.iter_mut()
@@ -57,14 +99,18 @@ impl Lyrics {
 #[derive(Clone, Debug)]
 pub struct Lyric {
 	state: text_input::State,
-	value: String,
+	pub value: String,
 }
 
 impl Lyric {
 	pub fn new() -> Self {
+		Self::new_with_value(String::with_capacity(70))
+	}
+
+	pub fn new_with_value(val: String) -> Self {
 		Lyric {
 			state: text_input::State::new(),
-			value: String::with_capacity(70),
+			value: val,
 		}
 	}
 
@@ -86,20 +132,20 @@ impl Lyric {
 		)
 			.style(theme)
 			.size(size)
-			.width(Length::Units(300))
+			.width(Length::Units(350))
 			.on_submit(Message::LineAdvanced(line_no))
 			.into()
 	}
 
-	pub fn set_content(&mut self, content: String) {
-		self.value = content;
-	}
-
 	pub fn select(&mut self) {
 		self.state.focus();
 		self.state.move_cursor_to_end();
 	}
 
+	pub fn is_selected(&self) -> bool {
+		self.state.is_focused()
+	}
+
 	pub fn deselect(&mut self) {
 		self.state.unfocus();
 	}

src/app/mod.rs

@@ -1,9 +1,16 @@
+use iced::Subscription;
+use iced::Clipboard;
+use iced::Command;
+use iced::Application;
 use iced::Container;
 use iced::Row;
 use iced::Element;
-use iced::Sandbox;
 use iced::Length;
 use iced::Align;
+use iced::executor;
+use iced_native::subscription;
+use iced_native::keyboard;
+use iced_native::event::Event;
 
 mod lyrics;
 mod styles;
@@ -23,31 +30,47 @@ pub enum Message {
 		new_value: String,
 	},
 	LineAdvanced(usize),
+	PasteSent,
 }
 
-impl Sandbox for DelyriumApp {
+impl Application for DelyriumApp {
 	type Message = Message;
+	type Executor = executor::Default;
+	type Flags = ();
 
-	fn new() -> Self {
+	fn new(_: Self::Flags) -> (Self, Command<Message>) {
+		(
 			DelyriumApp {
 				lyrics_component: lyrics::Lyrics::new(),
 				theme: Theme::default(),
-		}
+			},
+			Command::none(),
+		)
 	}
 
 	fn title(&self) -> String {
 		String::from("Delyrium")
 	}
 
-	fn update(&mut self, message: Message) {
+	fn update(&mut self, message: Message, clipboard: &mut Clipboard) -> Command<Message>{
 		match message {
 			Message::LyricChanged { line_no, new_value } => {
 				self.lyrics_component.update_line(new_value, line_no);
 			},
 			Message::LineAdvanced(current_line) => {
 				self.lyrics_component.advance_line(current_line);
+			},
+			Message::PasteSent => {
+				let clip_text = clipboard.read().unwrap_or(String::new());
+				let clip_pasted_len = clip_text.chars()
+					.filter(|c| *c != '\r' && *c != '\n')
+					.count();
+				let line = self.lyrics_component.current_line_mut().1;
+				line.value.truncate(line.value.len() - clip_pasted_len);
+				self.lyrics_component.insert_text(clip_text);
 			}
 		}
+		Command::none()
 	}
 
 	fn view(&mut self) -> Element<Message> {
@@ -60,4 +83,23 @@ impl Sandbox for DelyriumApp {
 		.height(Length::Fill)
 		.into()
 	}
+
+	fn subscription(&self) -> Subscription<Message> {
+		subscription::events_with(|event, _| {
+			match event {
+				Event::Keyboard(keyboard::Event::KeyPressed {key_code, modifiers}) => {
+					match (key_code, modifiers) {
+						(
+							keyboard::KeyCode::V,
+							keyboard::Modifiers { control, .. }
+						) if control == true => {
+							Some(Message::PasteSent)
+						}
+						_ => { None }
+					}
+				}
+				_ => { None }
+			}
+		})
+	}
 }

src/main.rs

@@ -1,4 +1,4 @@
-use iced::Sandbox;
+use iced::Application;
 use iced::settings::Settings;
 
 mod palette;