From 017d82af8a978cf20a848f5698840f4661aae3ea Mon Sep 17 00:00:00 2001
From: Chong Zhang <chz@google.com>
Date: Tue, 4 Jun 2013 18:38:07 -0700
Subject: [PATCH] wifi-display: grey out display if it's unavailable

Bug 9229799

Change-Id: I981423257a6ddff9deaea7f8339944cf46c1a0ba
---
 res/values/strings.xml                              |  2 ++
 .../android/settings/wfd/WifiDisplaySettings.java   | 13 ++++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/res/values/strings.xml b/res/values/strings.xml
index 81c81f84d81..965c1ad4f2d 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1221,6 +1221,8 @@
     <string name="wifi_display_status_connected">Connected</string>
     <!-- Wifi Display settings. The status summary for available devices. [CHAR LIMIT=40] -->
     <string name="wifi_display_status_available">Available</string>
+    <!-- Wifi Display settings. The status summary for busy devices. [CHAR LIMIT=40] -->
+    <string name="wifi_display_status_busy">Busy</string>
     <!-- Wifi Display settings. Image description for device details button. This opens the screen to rename, unpair, etc. a single device. -->
     <string name="wifi_display_details">Display settings</string>
 
diff --git a/src/com/android/settings/wfd/WifiDisplaySettings.java b/src/com/android/settings/wfd/WifiDisplaySettings.java
index 5b732d66506..ca2d2545174 100755
--- a/src/com/android/settings/wfd/WifiDisplaySettings.java
+++ b/src/com/android/settings/wfd/WifiDisplaySettings.java
@@ -182,7 +182,7 @@ public final class WifiDisplaySettings extends SettingsPreferenceFragment {
 
             if (display.equals(mWifiDisplayStatus.getActiveDisplay())) {
                 showDisconnectDialog(display);
-            } else {
+            } else if (display.canConnect()){
                 mDisplayManager.connectWifiDisplay(display.getDeviceAddress());
             }
         }
@@ -267,6 +267,17 @@ public final class WifiDisplaySettings extends SettingsPreferenceFragment {
         } else if (paired && contains(mWifiDisplayStatus.getAvailableDisplays(),
                 d.getDeviceAddress())) {
             p.setSummary(R.string.wifi_display_status_available);
+            for (WifiDisplay display : mWifiDisplayStatus.getAvailableDisplays()) {
+                if (display.getDeviceAddress().equals(d.getDeviceAddress()) &&
+                        !display.canConnect()) {
+                    p.setSummary(R.string.wifi_display_status_busy);
+                    p.setEnabled(false);
+                    break;
+                }
+            }
+        } else if (!paired && !d.canConnect()) {
+            p.setSummary(R.string.wifi_display_status_busy);
+            p.setEnabled(false);
         }
         if (paired) {
             p.setWidgetLayoutResource(R.layout.wifi_display_preference);