Launcher2 is now Launcher3.

Changes include
  - moving from com.android.launcher{,2} to
    com.android.launcher3
  - removing wallpapers
  - new temporary icon

Change-Id: I1eabd06059e94a8f3bdf6b620777bd1d2b7c212b

src/com/android/launcher3/PagedViewGridLayout.java

@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2011 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.android.launcher3;
+
+import android.content.Context;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.GridLayout;
+
+/**
+ * The grid based layout used strictly for the widget/wallpaper tab of the AppsCustomize pane
+ */
+public class PagedViewGridLayout extends GridLayout implements Page {
+    static final String TAG = "PagedViewGridLayout";
+
+    private int mCellCountX;
+    private int mCellCountY;
+    private Runnable mOnLayoutListener;
+
+    public PagedViewGridLayout(Context context, int cellCountX, int cellCountY) {
+        super(context, null, 0);
+        mCellCountX = cellCountX;
+        mCellCountY = cellCountY;
+    }
+
+    int getCellCountX() {
+        return mCellCountX;
+    }
+
+    int getCellCountY() {
+        return mCellCountY;
+    }
+
+    /**
+     * Clears all the key listeners for the individual widgets.
+     */
+    public void resetChildrenOnKeyListeners() {
+        int childCount = getChildCount();
+        for (int j = 0; j < childCount; ++j) {
+            getChildAt(j).setOnKeyListener(null);
+        }
+    }
+
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        // PagedView currently has issues with different-sized pages since it calculates the
+        // offset of each page to scroll to before it updates the actual size of each page
+        // (which can change depending on the content if the contents aren't a fixed size).
+        // We work around this by having a minimum size on each widget page).
+        int widthSpecSize = Math.min(getSuggestedMinimumWidth(),
+                MeasureSpec.getSize(widthMeasureSpec));
+        int widthSpecMode = MeasureSpec.EXACTLY;
+        super.onMeasure(MeasureSpec.makeMeasureSpec(widthSpecSize, widthSpecMode),
+                heightMeasureSpec);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        mOnLayoutListener = null;
+    }
+
+    public void setOnLayoutListener(Runnable r) {
+        mOnLayoutListener = r;
+    }
+
+    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+        super.onLayout(changed, left, top, right, bottom);
+        if (mOnLayoutListener != null) {
+            mOnLayoutListener.run();
+        }
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        boolean result = super.onTouchEvent(event);
+        int count = getPageChildCount();
+        if (count > 0) {
+            // We only intercept the touch if we are tapping in empty space after the final row
+            View child = getChildOnPageAt(count - 1);
+            int bottom = child.getBottom();
+            result = result || (event.getY() < bottom);
+        }
+        return result;
+    }
+
+    @Override
+    public void removeAllViewsOnPage() {
+        removeAllViews();
+        mOnLayoutListener = null;
+        setLayerType(LAYER_TYPE_NONE, null);
+    }
+
+    @Override
+    public void removeViewOnPageAt(int index) {
+        removeViewAt(index);
+    }
+
+    @Override
+    public int getPageChildCount() {
+        return getChildCount();
+    }
+
+    @Override
+    public View getChildOnPageAt(int i) {
+        return getChildAt(i);
+    }
+
+    @Override
+    public int indexOfChildOnPage(View v) {
+        return indexOfChild(v);
+    }
+
+    public static class LayoutParams extends FrameLayout.LayoutParams {
+        public LayoutParams(int width, int height) {
+            super(width, height);
+        }
+    }
+}