Content description for padlock icon depending on state

Bug: 15694090
Change-Id: I340b67f2036bd4b29388f437ab5bac1f1aabb93e

3 files changed, 23 insertions, 5 deletions

diff --git a/packages/SystemUI/res/layout/keyguard_bottom_area.xml b/packages/SystemUI/res/layout/keyguard_bottom_area.xml
index ca07c87..ef0c9bb 100644
--- a/packages/SystemUI/res/layout/keyguard_bottom_area.xml
+++ b/packages/SystemUI/res/layout/keyguard_bottom_area.xml
@@ -67,6 +67,6 @@
         android:src="@drawable/ic_lock_24dp"
         android:scaleType="center"
         android:tint="#ffffffff"
-        android:contentDescription="@string/accessibility_unlock_button" />
+        android:contentDescription="@string/accessibility_unlock_button_not_secured" />
 
 </com.android.systemui.statusbar.phone.KeyguardBottomAreaView>
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 8f05f7b..9ff67bb 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -213,8 +213,6 @@
     <string name="accessibility_camera_button">Camera</string>
     <!-- Content description of the phone button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_phone_button">Phone</string>
-    <!-- Content description of the unlock button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
-    <string name="accessibility_unlock_button">Unlock</string>
     <!-- Click action label for accessibility for the unlock button. [CHAR LIMIT=NONE] -->
     <string name="unlock_label">unlock</string>
     <!-- Click action label for accessibility for the phone button. [CHAR LIMIT=NONE] -->
@@ -222,6 +220,17 @@
     <!-- Click action label for accessibility for the phone button. [CHAR LIMIT=NONE] -->
     <string name="camera_label">open camera</string>
 
+    <!-- Content description of the lock icon when device is secured (lock closed) and trust not managed (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_unlock_button_secured">Device secured.</string>
+    <!-- Content description of the lock icon when device is not secured (lock open) and trust not managed (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_unlock_button_not_secured">Device not secured.</string>
+    <!-- Content description of the lock icon when device is secured (lock closed) and trust managed (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_unlock_button_secured_trust_managed">Device secured, trust agent active.</string>
+    <!-- Content description of the lock icon when device is not secured (lock open) and trust managed (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_unlock_button_not_secured_trust_managed">Device not secured, trust agent active.</string>
+    <!-- Content description of the lock icon when face unlock is running (face icon) and trust managed (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_unlock_button_face_unlock_running">Face detection running, trust agent active.</string>
+
     <!-- Content description of the switch input method button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_ime_switch_button">Switch input method button.</string>
     <!-- Content description of the compatibility zoom button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java
index 44d8d23..cb2d40a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java
@@ -377,11 +377,20 @@ public class KeyguardBottomAreaView extends FrameLayout implements View.OnClickL
         boolean trustManaged = mUnlockMethodCache.isTrustManaged();
         mTrustDrawable.setTrustManaged(trustManaged);
 
-        // TODO: Update content description depending on state
         updateLockIconClickability();
+        updateLockIconContentDescription(mUnlockMethodCache.isFaceUnlockRunning(),
+                mUnlockMethodCache.isMethodInsecure(), trustManaged);
     }
 
-
+    private void updateLockIconContentDescription(boolean faceUnlockRunning, boolean insecure,
+            boolean trustManaged) {
+        mLockIcon.setContentDescription(getResources().getString(
+                faceUnlockRunning ? R.string.accessibility_unlock_button_face_unlock_running
+                : insecure && !trustManaged ? R.string.accessibility_unlock_button_not_secured
+                : insecure ? R.string.accessibility_unlock_button_not_secured_trust_managed
+                : !trustManaged ? R.string.accessibility_unlock_button_secured
+                : R.string.accessibility_unlock_button_secured_trust_managed));
+    }
 
     public KeyguardAffordanceView getPhoneView() {
         return mPhoneImageView;