SnapdragonCamera: Camera2 add touch to focus

Add touch to focus to Camera2

CRs-Fixed: 989750
Change-Id: I5c7c85dcc12eefb11e5f1b5e6a823a327b2647e4

1 files changed, 66 insertions, 0 deletions

diff --git a/src/com/android/camera/FocusStateListener.java b/src/com/android/camera/FocusStateListener.java
new file mode 100644
index 000000000..42edd5c34
--- /dev/null
+++ b/src/com/android/camera/FocusStateListener.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ *     Redistribution and use in source and binary forms, with or without
+ *     modification, are permitted provided that the following conditions are
+ *     met:
+ *         * Redistributions of source code must retain the above copyright
+ *           notice, this list of conditions and the following disclaimer.
+ *         * Redistributions in binary form must reproduce the above
+ *           copyright notice, this list of conditions and the following
+ *           disclaimer in the documentation and/or other materials provided
+ *           with the distribution.
+ *         * Neither the name of The Linux Foundation nor the names of its
+ *           contributors may be used to endorse or promote products derived
+ *           from this software without specific prior written permission.
+ *
+ *     THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ *     WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ *     ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ *     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ *     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ *     OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ *     IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.android.camera;
+
+import android.hardware.camera2.CaptureResult;
+
+public class FocusStateListener {
+    private CaptureUI mUI;
+
+    public FocusStateListener(CaptureUI ui) {
+        mUI = ui;
+    }
+
+    public void onFocusStatusUpdate(int focusState) {
+        switch (focusState) {
+            case CaptureResult.CONTROL_AF_STATE_ACTIVE_SCAN:
+                mUI.onFocusStarted();
+                break;
+            case CaptureResult.CONTROL_AF_STATE_FOCUSED_LOCKED:
+                mUI.onFocusSucceeded(true);
+                break;
+            case CaptureResult.CONTROL_AF_STATE_NOT_FOCUSED_LOCKED:
+                mUI.onFocusFailed(true);
+                break;
+            case CaptureResult.CONTROL_AF_STATE_PASSIVE_FOCUSED:
+                mUI.onFocusSucceeded(true);
+                break;
+            case CaptureResult.CONTROL_AF_STATE_PASSIVE_SCAN:
+                mUI.onFocusStarted();
+                break;
+            case CaptureResult.CONTROL_AF_STATE_PASSIVE_UNFOCUSED:
+                mUI.onFocusFailed(true);
+                break;
+            case CaptureResult.CONTROL_AF_STATE_INACTIVE:
+                mUI.clearFocus();
+                break;
+        }
+    }
+}