Merge lp:~vthompson/music-app/remix-add-clear-queue into lp:music-app/remix

[Victor Thompson]

Add clear queue action

A discussion with design came up with a way of fixing the currently confusing pattern of navigating back to other views in the app from the Queue. The conclusion was to have the list icon toggle the view to and from the Queue, and keep the chevron as a "back to library" action. Also, a clear queue action is to be added to the Queue view--as that is what the x icon was supposed to do.

[Ubuntu Phone Apps Jenkins Bot (ubuntu-phone-apps-jenkins-bot)]

PASSED: Continuous integration, rev:666
http://91.189.93.70:8080/job/music-app-remix-ci/83/
Executed test runs:
    SUCCESS: http://91.189.93.70:8080/job/generic-mediumtests-utopic-python3/908
        deb: http://91.189.93.70:8080/job/generic-mediumtests-utopic-python3/908/artifact/work/output/*zip*/output.zip
    SUCCESS: http://91.189.93.70:8080/job/music-app-remix-utopic-amd64-ci/83

Click here to trigger a rebuild:
http://91.189.93.70:8080/job/music-app-remix-ci/83/rebuild

review: Approve (continuous-integration)

[Andrew Hayzen (ahayzen)]

Awesome :) LGTM

review: Approve

=== modified file 'MusicNowPlaying.qml'
--- MusicNowPlaying.qml	2014-10-11 17:56:21 +0000
+++ MusicNowPlaying.qml	2014-10-13 12:56:32 +0000
@@ -56,8 +56,17 @@
     head {
         actions: [
             Action {
+                objectName: "clearQueue"
+                iconName: "delete"
+                visible: isListView
+                onTriggered: {
+                    head.backAction.trigger()
+                    trackQueue.model.clear()
+                }
+            },
+            Action {
                 objectName: "toggleView"
-                iconName: isListView ? "clear" : "media-playlist"
+                iconName: "media-playlist"
                 onTriggered: {
                     isListView = !isListView
                 }