diff options
Diffstat (limited to 'src/com/android/dreams/phototable/EdgeSwipeDetector.java')
-rw-r--r-- | src/com/android/dreams/phototable/EdgeSwipeDetector.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/com/android/dreams/phototable/EdgeSwipeDetector.java b/src/com/android/dreams/phototable/EdgeSwipeDetector.java new file mode 100644 index 0000000..e5ca23d --- /dev/null +++ b/src/com/android/dreams/phototable/EdgeSwipeDetector.java @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2013 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.dreams.phototable; + +import android.content.Context; +import android.content.res.Resources; +import android.view.MotionEvent; + +/** + * Detect and dispatch edge events. + */ +public class EdgeSwipeDetector { + @SuppressWarnings("unused") + private static final String TAG = "EdgeSwipeDetector"; + private float mEdgeSwipeGutter; + private float mEdgeSwipeThreshold; + private boolean mEdgeSwipe; + + private final PhotoTable mTable; + + public EdgeSwipeDetector(Context context, PhotoTable table) { + mTable = table; + final Resources resources = context.getResources(); + mEdgeSwipeGutter = resources.getInteger(R.integer.table_edge_swipe_gutter) / 1000000f; + mEdgeSwipeThreshold = resources.getInteger(R.integer.table_edge_swipe_threshold) / 1000000f; + } + + public boolean onTouchEvent(MotionEvent event) { + switch (event.getAction()) { + case MotionEvent.ACTION_DOWN: + float edgeGutter = event.getDevice().getMotionRange(MotionEvent.AXIS_X).getMax() + * mEdgeSwipeGutter; + if (event.getX() < edgeGutter) { + mEdgeSwipe = true; + return true; + } + break; + + case MotionEvent.ACTION_MOVE: + if (mEdgeSwipe) { + return true; + } + break; + + case MotionEvent.ACTION_UP: + if (mEdgeSwipe) { + mEdgeSwipe = false; + float enough = event.getDevice().getMotionRange(MotionEvent.AXIS_X).getMax() + * mEdgeSwipeThreshold; + if (event.getX() > enough) { + if (mTable.hasFocus()) { + mTable.fling(mTable.getFocus()); + } else if (mTable.hasSelection()) { + mTable.clearSelection(); + } + } + return true; + } + break; + } + return false; + } +} |