Add a button to shuffle+play the current view

lua/browser.lua

@@ -58,7 +58,7 @@ return screen:new{
             flex = {
                 flex_direction = "row",
                 flex_wrap = "wrap",
-                justify_content = "flex-end",
+                justify_content = "center",
                 align_items = "center",
                 align_content = "center"
             },
@@ -72,6 +72,14 @@ return screen:new{
             queue.add(original_iterator)
             playback.playing:set(true)
         end)
+        local shuffle_play = widgets.IconBtn(buttons, "//lua/img/shuffleplay.png", "Shuffle")
+        shuffle_play:onClicked(function()
+            queue.clear()
+            queue.random:set(true)
+            queue.add(original_iterator)
+            playback.playing:set(true)
+            backstack.push(playing:new())
+        end)
         -- enqueue:add_flag(lvgl.FLAG.HIDDEN)
         local play = widgets.IconBtn(buttons, "//lua/img/play_small.png", "Play")
         play:onClicked(function()

lua/playing.lua

@@ -243,8 +243,9 @@ return screen:new {
         if not pos then return end
         playlist_pos:set { text = tostring(pos) }
 
+        local can_next = pos < queue.size:get() or queue.random:get()
         theme.set_style(
-          next_img, pos < queue.size:get() and icon_enabled_class or icon_disabled_class
+          next_img, can_next and icon_enabled_class or icon_disabled_class
         )
       end),
       queue.random:bind(function(shuffling)