Merge pull request #862 from 1hitsong/GlobalPlayQueue

Create Queue Manager and use for Music

components/manager/QueueManager.brs

@@ -0,0 +1,129 @@
+sub init()
+    m.queue = []
+    m.position = 0
+end sub
+
+'
+' Clear all content from play queue
+sub clear()
+    m.queue = []
+    setPosition(0)
+end sub
+
+
+'
+' Delete item from play queue at passed index
+sub deleteAtIndex(index)
+    m.queue.Delete(index)
+end sub
+
+
+'
+' Return the number of items in the play queue
+function getCount()
+    return m.queue.count()
+end function
+
+
+'
+' Return the item currently in focus from the play queue
+function getCurrentItem()
+    return getItemByIndex(m.position)
+end function
+
+
+'
+' Return the item in the passed index from the play queue
+function getItemByIndex(index)
+    return m.queue[index]
+end function
+
+
+'
+' Returns current playback position within the queue
+function getPosition()
+    return m.position
+end function
+
+
+'
+' Move queue position back one
+sub moveBack()
+    m.position--
+end sub
+
+
+'
+' Move queue position ahead one
+sub moveForward()
+    m.position++
+end sub
+
+
+'
+' Return the current play queue
+function getQueue()
+    return m.queue
+end function
+
+
+'
+' Return item at end of play queue without removing
+function peek()
+    return m.queue.peek()
+end function
+
+
+'
+' Play items in queue
+sub playQueue()
+    nextItem = top()
+    nextItemMediaType = invalid
+
+    if isValid(nextItem?.json?.mediatype) and nextItem.json.mediatype <> ""
+        nextItemMediaType = LCase(nextItem.json.mediatype)
+    else if isValid(nextItem?.type) and nextItem.type <> ""
+        nextItemMediaType = LCase(nextItem.type)
+    end if
+
+    if not isValid(nextItemMediaType) then return
+
+    if nextItemMediaType = "audio"
+        CreateAudioPlayerView()
+    end if
+end sub
+
+
+'
+' Remove item at end of play queue
+sub pop()
+    m.queue.pop()
+end sub
+
+
+'
+' Push new items to the play queue
+sub push(newItem)
+    m.queue.push(newItem)
+end sub
+
+'
+' Set the queue position
+sub setPosition(newPosition)
+    m.position = newPosition
+end sub
+
+
+'
+' Return the fitst item in the play queue
+function top()
+    return getItemByIndex(0)
+end function
+
+
+'
+' Replace play queue with passed array
+sub set(items)
+    setPosition(0)
+    m.queue = items
+end sub

components/manager/QueueManager.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<component name="QueueManager" extends="Group">
+  <interface>
+    <function name="clear" />
+    <function name="deleteAtIndex" />
+    <function name="getCount" />
+    <function name="getCurrentItem" />
+    <function name="getItemByIndex" />
+    <function name="getPosition" />
+    <function name="getQueue" />
+    <function name="moveBack" />
+    <function name="moveForward" />
+    <function name="peek" />
+    <function name="playQueue" />
+    <function name="pop" />
+    <function name="push" />
+    <function name="set" />
+    <function name="setPosition" />
+    <function name="top" />
+  </interface>
+  <script type="text/brightscript" uri="QueueManager.brs" />
+  <script type="text/brightscript" uri="pkg:/source/utils/misc.brs" />
+  <script type="text/brightscript" uri="ViewCreator.brs" />
+</component>

components/manager/ViewCreator.brs

@@ -0,0 +1,6 @@
+' Play Audio
+sub CreateAudioPlayerView()
+    view = CreateObject("roSGNode", "AudioPlayerView")
+    view.observeField("state", m.port)
+    m.global.sceneManager.callFunc("pushScene", view)
+end sub