1 files changed, 237 insertions, 0 deletions
diff --git a/src/com/android/dialer/list/PhoneFavoriteListView.java b/src/com/android/dialer/list/PhoneFavoriteListView.java
new file mode 100644
index 000000000..b5da054f9
--- /dev/null
+++ b/src/com/android/dialer/list/PhoneFavoriteListView.java
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2012 Google Inc.
+ * Licensed to 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.dialer.list;
+
+import android.content.Context;
+import android.content.res.Configuration;
+import android.os.Handler;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.DragEvent;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnDragListener;
+import android.view.ViewConfiguration;
+import android.widget.ListView;
+
+import com.android.dialer.R;
+import com.android.dialer.list.PhoneFavoritesTileAdapter.ContactTileRow;
+import com.android.dialer.list.SwipeHelper.OnItemGestureListener;
+import com.android.dialer.list.SwipeHelper.SwipeHelperCallback;
+
+/**
+ * The ListView composed of {@link ContactTileRow}.
+ * This ListView handles both
+ * - Swiping, which is borrowed from packages/apps/UnifiedEmail (com.android.mail.ui.Swipeable)
+ * - Drag and drop
+ */
+public class PhoneFavoriteListView extends ListView implements
+        SwipeHelperCallback, OnDragListener {
+
+    public static final String LOG_TAG = PhoneFavoriteListView.class.getSimpleName();
+
+    private SwipeHelper mSwipeHelper;
+    private boolean mEnableSwipe = true;
+
+    private OnItemGestureListener mOnItemGestureListener;
+
+    private float mDensityScale;
+    private float mTouchSlop;
+
+    private int mTopScrollBound;
+    private int mBottomScrollBound;
+    private int mLastDragY;
+
+    private Handler mScrollHandler;
+    private final long SCROLL_HANDLER_DELAY_MILLIS = 5;
+    private final int DRAG_SCROLL_PX_UNIT = 10;
+
+    /**
+     * {@link #mTopScrollBound} and {@link mBottomScrollBound} will be
+     * offseted to the top / bottom by {@link #getHeight} * {@link #BOUND_GAP_RATIO} pixels.
+     */
+    private final float BOUND_GAP_RATIO = 0.2f;
+
+    private final Runnable mDragScroller = new Runnable() {
+        @Override
+        public void run() {
+            if (mLastDragY <= mTopScrollBound) {
+                smoothScrollBy(-DRAG_SCROLL_PX_UNIT, (int) SCROLL_HANDLER_DELAY_MILLIS);
+            } else if (mLastDragY >= mBottomScrollBound) {
+                smoothScrollBy(DRAG_SCROLL_PX_UNIT, (int) SCROLL_HANDLER_DELAY_MILLIS);
+            }
+            mScrollHandler.postDelayed(this, SCROLL_HANDLER_DELAY_MILLIS);
+        }
+    };
+
+    public PhoneFavoriteListView(Context context) {
+        this(context, null);
+    }
+
+    public PhoneFavoriteListView(Context context, AttributeSet attrs) {
+        this(context, attrs, -1);
+    }
+
+    public PhoneFavoriteListView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        mDensityScale = getResources().getDisplayMetrics().density;
+        mTouchSlop = ViewConfiguration.get(context).getScaledPagingTouchSlop();
+        mSwipeHelper = new SwipeHelper(context, SwipeHelper.X, this,
+                mDensityScale, mTouchSlop);
+        setItemsCanFocus(true);
+        setOnDragListener(this);
+    }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        mDensityScale= getResources().getDisplayMetrics().density;
+        mTouchSlop = ViewConfiguration.get(getContext()).getScaledPagingTouchSlop();
+        mSwipeHelper.setDensityScale(mDensityScale);
+        mSwipeHelper.setPagingTouchSlop(mTouchSlop);
+    }
+
+    /**
+     * Enable swipe gestures.
+     */
+    public void enableSwipe(boolean enable) {
+        mEnableSwipe = enable;
+    }
+
+    public boolean isSwipeEnabled() {
+        return mEnableSwipe && mOnItemGestureListener.isSwipeEnabled();
+    }
+
+    public void setOnItemSwipeListener(OnItemGestureListener listener) {
+        mOnItemGestureListener = listener;
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        if (isSwipeEnabled()) {
+            return mSwipeHelper.onInterceptTouchEvent(ev) || super.onInterceptTouchEvent(ev);
+        } else {
+            return super.onInterceptTouchEvent(ev);
+        }
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        if (mOnItemGestureListener != null) {
+            mOnItemGestureListener.onTouch();
+        }
+        if (isSwipeEnabled()) {
+            return mSwipeHelper.onTouchEvent(ev) || super.onTouchEvent(ev);
+        } else {
+            return super.onTouchEvent(ev);
+        }
+    }
+
+    @Override
+    public View getChildAtPosition(MotionEvent ev) {
+        // find the view under the pointer, accounting for GONE views
+        final int count = getChildCount();
+        final int touchY = (int) ev.getY();
+        View slidingChild;
+        for (int childIdx = 0; childIdx < count; childIdx++) {
+            slidingChild = getChildAt(childIdx);
+            if (slidingChild.getVisibility() == GONE) {
+                continue;
+            }
+            if (touchY >= slidingChild.getTop() && touchY <= slidingChild.getBottom()) {
+                if (SwipeHelper.isSwipeable(slidingChild)) {
+                    // If this view is swipable in this listview, then return it. Otherwise
+                    // return a null view, which will simply be ignored by the swipe helper.
+                    return slidingChild;
+                } else {
+                    return null;
+                }
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public View getChildContentView(View view) {
+        return view.findViewById(R.id.contact_favorite_card);
+    }
+
+    @Override
+    public void onScroll() {}
+
+    @Override
+    public boolean canChildBeDismissed(View v) {
+        return SwipeHelper.isSwipeable(v);
+    }
+
+    @Override
+    public void onChildDismissed(final View v) {
+        if (v != null) {
+            if (mOnItemGestureListener != null) {
+                mOnItemGestureListener.onSwipe(v);
+            }
+        }
+    }
+
+    @Override
+    public void onDragCancelled(View v) {
+    }
+
+    @Override
+    public void onBeginDrag(View v) {
+        final View tileRow = (View) v.getParent();
+
+        // We do this so the underlying ScrollView knows that it won't get
+        // the chance to intercept events anymore
+        requestDisallowInterceptTouchEvent(true);
+    }
+
+    @Override
+    public boolean dispatchDragEvent(DragEvent event) {
+        switch (event.getAction()) {
+            case DragEvent.ACTION_DRAG_LOCATION:
+                if (mScrollHandler == null) {
+                    mScrollHandler = getHandler();
+                }
+                mLastDragY = (int) event.getY();
+                mScrollHandler.postDelayed(mDragScroller, SCROLL_HANDLER_DELAY_MILLIS);
+                break;
+            case DragEvent.ACTION_DRAG_ENTERED:
+                final int boundGap = (int) (getHeight() * BOUND_GAP_RATIO);
+                mTopScrollBound = (getTop() + boundGap);
+                mBottomScrollBound = (getBottom() - boundGap);
+                break;
+            case DragEvent.ACTION_DRAG_EXITED:
+            case DragEvent.ACTION_DRAG_ENDED:
+                mScrollHandler.removeCallbacks(mDragScroller);
+                break;
+            case DragEvent.ACTION_DRAG_STARTED:
+                // Not a receiver
+            case DragEvent.ACTION_DROP:
+                // Not a receiver
+            default:
+                break;
+        }
+        return super.dispatchDragEvent(event);
+    }
+
+    @Override
+    public boolean onDrag(View v, DragEvent event) {
+        return true;
+    }
+}