Add PlayStatus struct

src/lib.rs

@@ -1,5 +1,6 @@
 pub mod app;
 pub mod songdata;
+pub mod playstatus;
 use cfg_if::cfg_if;
 
 cfg_if! {

src/playstatus.rs

@@ -0,0 +1,65 @@
+use leptos::HtmlElement;
+use leptos::NodeRef;
+use leptos::html::Audio;
+use leptos::leptos_dom::helpers::IntervalHandle;
+use std::collections::VecDeque;
+
+use crate::songdata::SongData;
+
+/// Represents the global state of the audio player feature of LibreTunes
+pub struct PlayStatus {
+	/// Whether or not the audio player is currently playing
+    pub playing: bool,
+	/// A reference to the HTML audio element
+    pub audio_player: Option<NodeRef<Audio>>,
+	/// A handle to the interval that updates the progress bar
+    pub progress_update_handle: Option<IntervalHandle>,
+	/// A queue of songs that have been played, ordered from oldest to newest
+    pub history: VecDeque<SongData>,
+	/// A queue of songs that have yet to be played, ordered from next up to last
+    pub queue: VecDeque<SongData>,
+}
+
+impl PlayStatus {
+	/// Returns the HTML audio element if it has been created and is present, otherwise returns None
+	/// 
+	/// Instead of:
+	/// ```
+	/// let status = libretunes::playstatus::PlayStatus::default();
+	/// if let Some(audio) = status.audio_player {
+	/// 	if let Some(audio) = audio.get() {
+	/// 		let _ = audio.play();
+	/// 	}
+	/// }
+	/// ```
+	/// 
+	/// You can do:
+	/// ```
+	/// let status = libretunes::playstatus::PlayStatus::default();
+	/// if let Some(audio) = status.get_audio() {
+	/// 	let _ = audio.play();
+	/// }
+	/// ```
+	pub fn get_audio(&self) -> Option<HtmlElement<Audio>> {
+        if let Some(audio) = &self.audio_player {
+            if let Some(audio) = audio.get() {
+                return Some(audio);
+            }
+        }
+
+        None
+    }
+}
+
+impl Default for PlayStatus {
+	/// Creates a paused PlayStatus with no audio player, no progress update handle, and empty queue/history
+    fn default() -> Self {
+        Self {
+            playing: false,
+            audio_player: None,
+            progress_update_handle: None,
+            history: VecDeque::new(),
+            queue: VecDeque::new(),
+        }
+    }
+}