Use fragments for music player to allow linking

[app-musicexpo.git] / player.js

diff --git a/player.js b/player.js
index c81e8fabcecd78ae2b205460ed5162e19f8d1e1a..0b71701d1a4dbeaef006437874d698239b5cb12f 100644 (file)
--- a/player.js
+++ b/player.js
@@ -7,6 +7,7 @@ var TYPES = {
 };
 
 var audio, details, start, data;
+var hash_to_id = {}, inhibit_handle_hash = false;
 
 function load_song (id) {
        audio.style.display = "inline";
@@ -24,6 +25,9 @@ function load_song (id) {
        }
 
        details.innerHTML = "Now playing: " + song.artist + " - " + song.title;
+       inhibit_handle_hash = true;
+       location.hash = song.hash;
+       inhibit_handle_hash = false;
        audio.load();
 }
 
@@ -34,12 +38,12 @@ function play_random () {
        audio.play();
 }
 
-function make_onclick_handler (id){
-       return function () {
-               load_song(id);
-               start.innerHTML = "Next";
-               audio.play();
-       }
+function handle_hash(){
+       if(!hash_to_id[location.hash] || inhibit_handle_hash)
+               return;
+       load_song(hash_to_id[location.hash]);
+       start.innerHTML = "Next";
+       audio.play();
 }
 
 window.onload = function () {
@@ -56,6 +60,7 @@ window.onload = function () {
                var song = {
                        "artist": tr.getElementsByClassName("artist")[0].textContent,
                        "title": tr.getElementsByClassName("title")[0].textContent,
+                       "hash": tr.getElementsByTagName("a")[0].dataset.hash,
                        "formats": []
                };
                var formats = tr.getElementsByClassName("formats")[0].getElementsByTagName("a");
@@ -67,11 +72,13 @@ window.onload = function () {
                        });
                }
                data.push(song);
-               tr.getElementsByClassName("title")[0].onclick = make_onclick_handler(i);
+               hash_to_id[song.hash] = i;
        }
 
        audio.style.display = "none";
        audio.addEventListener('ended', play_random);
        audio.addEventListener('error', play_random);
        start.addEventListener('click', play_random);
+       window.onhashchange = handle_hash;
+       handle_hash();
 };