CastTile : Cosmetic changes to the cast tile UX.

- Change the tile title to "Screen Cast".
- Always show the tile title as a primary label, and show
  the casting or projection device as the secondary label.
- Also fixes an issue where the cast tile would show as disabled
  when WiFi wasn't connected, despite the fact that the tile may
  have been displaying an in-progress projection session.

Test: manual
Bug: 124753835

Change-Id: I15f9c0a80d288e5d9a77e87fd1f3135033fdb873
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index d53c785..5338bb4 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -776,7 +776,7 @@
     <!-- QuickSettings: Wifi secondary label shown when the wifi is being enabled [CHAR LIMIT=NONE] -->
     <string name="quick_settings_wifi_secondary_label_transient">Turning on&#8230;</string>
     <!-- QuickSettings: Cast title [CHAR LIMIT=NONE] -->
-    <string name="quick_settings_cast_title">Cast</string>
+    <string name="quick_settings_cast_title">Screen Cast</string>
     <!-- QuickSettings: Cast detail panel, status text when casting [CHAR LIMIT=NONE] -->
     <string name="quick_settings_casting">Casting</string>
     <!-- QuickSettings: Cast detail panel, default device name [CHAR LIMIT=NONE] -->
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/CastTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/CastTile.java
index f05ac4c..51d05c7 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/tiles/CastTile.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/tiles/CastTile.java
@@ -161,21 +161,23 @@
         for (CastDevice device : devices) {
             if (device.state == CastDevice.STATE_CONNECTED) {
                 state.value = true;
-                state.label = getDeviceName(device);
+                state.secondaryLabel = getDeviceName(device);
                 state.contentDescription = state.contentDescription + "," +
                         mContext.getString(R.string.accessibility_cast_name, state.label);
             } else if (device.state == CastDevice.STATE_CONNECTING) {
                 connecting = true;
             }
         }
-        if (!state.value && connecting) {
-            state.label = mContext.getString(R.string.quick_settings_connecting);
+        if (connecting && !state.value) {
+            state.secondaryLabel = mContext.getString(R.string.quick_settings_connecting);
         }
         state.icon = ResourceIcon.get(state.value ? R.drawable.ic_qs_cast_on
                 : R.drawable.ic_qs_cast_off);
-        if (mWifiConnected) {
+        if (mWifiConnected || state.value) {
             state.state = state.value ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
-            state.secondaryLabel = "";
+            if (!state.value) {
+                state.secondaryLabel = "";
+            }
             state.contentDescription = state.contentDescription + ","
                     + mContext.getString(R.string.accessibility_quick_settings_open_details);
             state.expandedAccessibilityClassName = Button.class.getName();