CMFileManager : Switch to checked states

Selected states are not being tracked properly when rotated.

Repro:

1. Click to open file
2. Tap on first item in resolver dialog
3. Rotate device
4. Press ok
5. Enjoy crash

issue-id: CYNGNOS-991

Change-Id: I9ef5d0571201957eac40edc8bc5e47700752dcc3

1 files changed, 60 insertions, 0 deletions

diff --git a/src/com/cyanogenmod/filemanager/ui/widgets/CheckableRelativeLayout.java b/src/com/cyanogenmod/filemanager/ui/widgets/CheckableRelativeLayout.java
new file mode 100644
index 00000000..71f1c0ae
--- /dev/null
+++ b/src/com/cyanogenmod/filemanager/ui/widgets/CheckableRelativeLayout.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.cyanogenmod.filemanager.ui.widgets;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.Checkable;
+import android.widget.RelativeLayout;
+
+public class CheckableRelativeLayout extends RelativeLayout implements Checkable {
+    private static final int[] CHECKED_STATE_SET = {
+        android.R.attr.state_checked
+    };
+    private boolean mChecked;
+
+    public CheckableRelativeLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public boolean isChecked() {
+        return mChecked;
+    }
+
+    @Override
+    public void setChecked(boolean checked) {
+        if (mChecked != checked) {
+            mChecked = checked;
+            refreshDrawableState();
+        }
+    }
+
+    @Override
+    public void toggle() {
+        setChecked(!mChecked);
+    }
+
+    @Override
+    public int[] onCreateDrawableState(int extraSpace) {
+        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
+        if (mChecked) {
+            mergeDrawableStates(drawableState, CHECKED_STATE_SET);
+        }
+        return drawableState;
+    }
+}