Allow LauncherOverlay to access and manage insets
Change-Id: Ib9faf37eb22ad2a0b18c076978ec9f2fd8864c0c
diff --git a/src/com/android/launcher3/InsettableFrameLayout.java b/src/com/android/launcher3/InsettableFrameLayout.java
new file mode 100644
index 0000000..4ba9c88
--- /dev/null
+++ b/src/com/android/launcher3/InsettableFrameLayout.java
@@ -0,0 +1,52 @@
+package com.android.launcher3;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+public class InsettableFrameLayout extends FrameLayout implements
+ ViewGroup.OnHierarchyChangeListener, Insettable {
+
+ protected Rect mInsets = new Rect();
+
+ public InsettableFrameLayout(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ setOnHierarchyChangeListener(this);
+ }
+
+ public void setFrameLayoutChildInsets(View child, Rect newInsets, Rect oldInsets) {
+ final FrameLayout.LayoutParams flp = (FrameLayout.LayoutParams) child.getLayoutParams();
+ if (child instanceof Insettable) {
+ ((Insettable) child).setInsets(newInsets);
+ } else {
+ flp.topMargin += (newInsets.top - oldInsets.top);
+ flp.leftMargin += (newInsets.left - oldInsets.left);
+ flp.rightMargin += (newInsets.right - oldInsets.right);
+ flp.bottomMargin += (newInsets.bottom - oldInsets.bottom);
+ }
+ child.setLayoutParams(flp);
+ }
+
+ @Override
+ public void setInsets(Rect insets) {
+ final int n = getChildCount();
+ for (int i = 0; i < n; i++) {
+ final View child = getChildAt(i);
+ setFrameLayoutChildInsets(child, insets, mInsets);
+ }
+ mInsets.set(insets);
+ }
+
+ @Override
+ public void onChildViewAdded(View parent, View child) {
+ setFrameLayoutChildInsets(child, mInsets, new Rect());
+ }
+
+ @Override
+ public void onChildViewRemoved(View parent, View child) {
+ }
+
+}