Player seek feature

app/assets/javascripts/backbone/models/player.js.coffee

@@ -3,6 +3,7 @@ class BeatHaven.Models.Player extends Backbone.Model
   playlist: null
   tracks: null
   current_track: null
+  move_it_mousedown: false
 
   initialize: ->
     @playlist = new BeatHaven.Collections.Tracklist()
@@ -15,11 +16,14 @@ class BeatHaven.Models.Player extends Backbone.Model
       else
         this.play_something()
     else
-      if @current_track?
-        @current_track.get("sm_obj").stop()
-        $(".player .progress-bar .bar").css(width: 0)
-      @current_track = track
-      @current_track.get("sm_obj").play()
+      if @current_track? and @current_track == track
+        @current_track.get("sm_obj").resume()
+      else
+        if @current_track?
+          @current_track.get("sm_obj").stop()
+          $(".player .progress-bar .bar").css(width: 0)
+        @current_track = track
+        @current_track.get("sm_obj").play()
       $(".player .controls .play").css(display: "none")
       $(".player .controls .pause").css(display: "inline-block")
 
@@ -29,6 +33,11 @@ class BeatHaven.Models.Player extends Backbone.Model
     $(".player .controls .play").css(display: "inline-block")
     $(".player .controls .pause").css(display: "none")
 
+  seek: (percent) ->
+    return false unless @current_track?
+    position = @current_track.get("duration") * 1000 * percent
+    @current_track.get("sm_obj").setPosition(position)
+
   next: ->
     return false unless @current_track?
     if @playlist_on
@@ -56,9 +65,11 @@ class BeatHaven.Models.Player extends Backbone.Model
     $(".player .progress-bar .title").html("#{params.artists.join(', ')} — #{params.track}")
 
   update_buffer_bar: (event) ->
+    # not implemented
     false
 
   update_progress_bar: (obj) ->
+    return false if @move_it_mousedown
     percent = obj.position / obj.duration * 100
     $(".player .progress-bar .bar").css(width: "#{percent}%")
 

app/assets/javascripts/backbone/models/track.js.coffee

@@ -6,6 +6,10 @@ class BeatHaven.Models.Track extends Backbone.Model
     else
       this.find_and_start()
 
+  pause: ->
+    BH.Player.pause()
+    this.node().addClass("paused")
+
   start: ->
     BH.Player.update_title(
       artists: @.get("artists")
@@ -14,7 +18,7 @@ class BeatHaven.Models.Track extends Backbone.Model
     unless @.get("sm_obj")?
       this.add_to_library(autoload: true, autoplay: false)
     BH.Player.play(this)
-    $(".artist-page .tracks li[data-id]").removeClass("now-playing")
+    $(".artist-page .tracks li[data-id]").removeClass("now-playing").removeClass("paused")
     this.node().addClass("now-playing")
 
   find_and_start: ->

app/assets/javascripts/bindings/player.js.coffee

@@ -7,3 +7,16 @@ $ ->
     BH.Player.pause()
   $(".player .controls .next").live "click", (e) ->
     BH.Player.next()
+
+  $(".player .move-it")
+    .live "mousedown", (e) ->
+      BH.Player.move_it_mousedown = true
+    .live "mouseup", (e) ->
+      BH.Player.move_it_mousedown = false
+      return false unless BH.Player.current_track?
+      percent = e.offsetX / $(this).width()
+      BH.Player.seek(percent)
+    .live "mousemove", (e) ->
+      return false unless BH.Player.move_it_mousedown and BH.Player.current_track?
+      percent = e.offsetX / $(this).width() * 100
+      $(".player .progress-bar .bar").css(width: "#{percent}%")

app/assets/javascripts/bindings/track.js.coffee

@@ -3,3 +3,7 @@ $ ->
     e.preventDefault()
     id = parseInt($(this).parent().data("id"), 10)
     BH.Player.tracks.get(id).play()
+  $(".track-pause").live "click", (e) ->
+    e.preventDefault()
+    id = parseInt($(this).parent().data("id"), 10)
+    BH.Player.tracks.get(id).pause()

app/assets/stylesheets/album-track.css.scss

@@ -39,6 +39,18 @@
           opacity: 1;
         }
       }
+      &.paused {
+        .track-play {
+          display: block;
+
+          i {
+            opacity: 1;
+          }
+        }
+        .track-pause {
+          display: none;
+        }
+      }
     }
 
     .btn-round {