Adds API for determining confirm and cancel keys.

Bug: 13624048
Change-Id: I9f42eeb9c3a6bdae35eb0d7213fb4ac0fd8dc0d9

2 files changed, 25 insertions, 6 deletions

diff --git a/core/java/android/view/KeyEvent.java b/core/java/android/view/KeyEvent.java
index 6a6c127..437ccfb 100644
--- a/core/java/android/view/KeyEvent.java
+++ b/core/java/android/view/KeyEvent.java
@@ -1847,13 +1847,32 @@ public class KeyEvent extends InputEvent implements Parcelable {
         }
     }
 
-    /** Whether key will, by default, trigger a click on the focused view.
-     * @hide
+    /**
+     * Returns true if the key event should be treated as a confirming action.
+     * @return True for a confirmation key, such as {@link #KEYCODE_DPAD_CENTER},
+     * {@link #KEYCODE_ENTER}, or {@link #KEYCODE_BUTTON_A}.
      */
-    public static final boolean isConfirmKey(int keyCode) {
-        switch (keyCode) {
+    public final boolean isConfirmKey() {
+        switch (mKeyCode) {
             case KeyEvent.KEYCODE_DPAD_CENTER:
             case KeyEvent.KEYCODE_ENTER:
+            case KeyEvent.KEYCODE_BUTTON_A:
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * Returns true if the key event should be treated as a cancelling action.
+     * @return True for a cancellation key, such as {@link #KEYCODE_ESCAPE},
+     * {@link #KEYCODE_BACK}, or {@link #KEYCODE_BUTTON_B}.
+     */
+    public final boolean isCancelKey() {
+        switch (mKeyCode) {
+            case KeyEvent.KEYCODE_BUTTON_B:
+            case KeyEvent.KEYCODE_ESCAPE:
+            case KeyEvent.KEYCODE_BACK:
                 return true;
             default:
                 return false;
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 6b73ae7..80725dc 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -8186,7 +8186,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         boolean result = false;
 
-        if (KeyEvent.isConfirmKey(keyCode)) {
+        if (event.isConfirmKey()) {
             if ((mViewFlags & ENABLED_MASK) == DISABLED) {
                 return true;
             }
@@ -8228,7 +8228,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
      * @param event   The KeyEvent object that defines the button action.
      */
     public boolean onKeyUp(int keyCode, KeyEvent event) {
-        if (KeyEvent.isConfirmKey(keyCode)) {
+        if (event.isConfirmKey()) {
             if ((mViewFlags & ENABLED_MASK) == DISABLED) {
                 return true;
             }