media: binding: improve media removal support

Use glib's inotify support instead of UDisks to get the actual
path of an unmounted drive. This in turn allows removal of items
on the playlist respective to only that device.

Bug-AGL: SPEC-610 SPEC-757
Change-Id: Iaabb004934367bf1e60dab3f9f3365c2eb0b517d
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>

1 files changed, 21 insertions, 3 deletions

diff --git a/app/api/LightMediaScanner.qml b/app/api/LightMediaScanner.qml
index d0b7137..cbacb8c 100644
--- a/app/api/LightMediaScanner.qml
+++ b/app/api/LightMediaScanner.qml
@@ -26,6 +26,7 @@ WebSocket {
     property string statusString: "waiting..."
     property string apiString: "media-manager"
     property var verbs: []
+    property var items: []
     property string payloadLength: "9999"
 
     readonly property var msgid: {
@@ -35,6 +36,16 @@ WebSocket {
         "event": 5
     }
 
+    function validateItem(media) {
+        for (var i = 0; i < media.length; i++) {
+            var item = media[i]
+            if (root.items.indexOf(item) < 0) {
+                playlist.addItem(item)
+                root.items.push(item)
+            }
+        }
+    }
+
     onTextMessageReceived: {
         var json = JSON.parse(message)
         console.debug("Raw response: " + message)
@@ -49,7 +60,7 @@ WebSocket {
                 var verb = verbs.shift()
                 if (verb == "media_result") {
                     console.debug("Media result returned")
-                    playlist.addItems(response.Media)
+                    validateItem(response.Media)
                 }
                 break
             case msgid.reterr:
@@ -60,11 +71,18 @@ WebSocket {
                 var event = payload.event
                 if (event == "media-manager/media_added") {
                     console.debug("Media is inserted")
-                    playlist.addItems(json[2].data.Media)
+                    validateItem(json[2].data.Media)
                 } else if (event == "media-manager/media_removed") {
+                    var removed = 0
                     console.debug("Media is removed")
                     player.stop()
-                    playlist.clear()
+
+                    for (var i = 0; i < root.items.length; i++) {
+                        if (root.items[i].startsWith(json[2].data.Path)) {
+                            playlist.removeItem(i - removed++)
+                        }
+                    }
+                    root.items = root.items.filter(function (item) { return !item.startsWith(json[2].data.Path) })
                 }
                 break
         }