Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.systemui.statusbar; |
| 18 | |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 19 | import android.graphics.RectF; |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 20 | import android.view.MotionEvent; |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 21 | import android.view.View; |
| 22 | |
Jim Miller | 354619c | 2012-04-27 17:33:44 -0700 | [diff] [blame] | 23 | import com.android.systemui.R; |
| 24 | |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 25 | public class DelegateViewHelper { |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 26 | private View mDelegateView; |
| 27 | private View mSourceView; |
| 28 | private BaseStatusBar mBar; |
| 29 | private int[] mTempPoint = new int[2]; |
Jim Miller | 354619c | 2012-04-27 17:33:44 -0700 | [diff] [blame] | 30 | private float[] mDownPoint = new float[2]; |
Jim Miller | 354619c | 2012-04-27 17:33:44 -0700 | [diff] [blame] | 31 | private float mTriggerThreshhold; |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 32 | private boolean mPanelShowing; |
| 33 | |
| 34 | RectF mInitialTouch = new RectF(); |
| 35 | private boolean mStarted; |
| 36 | private boolean mSwapXY = false; |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 37 | |
| 38 | public DelegateViewHelper(View sourceView) { |
Jim Miller | 1615389 | 2012-05-17 19:47:55 -0700 | [diff] [blame] | 39 | setSourceView(sourceView); |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 40 | } |
| 41 | |
| 42 | public void setDelegateView(View view) { |
| 43 | mDelegateView = view; |
| 44 | } |
| 45 | |
| 46 | public void setBar(BaseStatusBar phoneStatusBar) { |
| 47 | mBar = phoneStatusBar; |
| 48 | } |
| 49 | |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 50 | public boolean onInterceptTouchEvent(MotionEvent event) { |
John Spurlock | 67ad368 | 2012-06-26 17:42:00 -0400 | [diff] [blame] | 51 | if (mSourceView == null || mDelegateView == null |
Daniel Sandler | d5483c3 | 2012-10-19 16:44:15 -0400 | [diff] [blame] | 52 | || mBar.shouldDisableNavbarGestures()) { |
Jim Miller | 670d9dd | 2012-05-12 13:28:26 -0700 | [diff] [blame] | 53 | return false; |
| 54 | } |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 55 | |
| 56 | mSourceView.getLocationOnScreen(mTempPoint); |
| 57 | final float sourceX = mTempPoint[0]; |
| 58 | final float sourceY = mTempPoint[1]; |
| 59 | |
John Spurlock | ad3e6cb | 2013-04-30 08:47:43 -0400 | [diff] [blame] | 60 | final int action = event.getAction(); |
| 61 | switch (action) { |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 62 | case MotionEvent.ACTION_DOWN: |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 63 | mPanelShowing = mDelegateView.getVisibility() == View.VISIBLE; |
Jim Miller | 354619c | 2012-04-27 17:33:44 -0700 | [diff] [blame] | 64 | mDownPoint[0] = event.getX(); |
| 65 | mDownPoint[1] = event.getY(); |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 66 | mStarted = mInitialTouch.contains(mDownPoint[0] + sourceX, mDownPoint[1] + sourceY); |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 67 | break; |
| 68 | } |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 69 | |
| 70 | if (!mStarted) { |
| 71 | return false; |
| 72 | } |
| 73 | |
John Spurlock | ad3e6cb | 2013-04-30 08:47:43 -0400 | [diff] [blame] | 74 | if (!mPanelShowing && action == MotionEvent.ACTION_MOVE) { |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 75 | final int historySize = event.getHistorySize(); |
| 76 | for (int k = 0; k < historySize + 1; k++) { |
| 77 | float x = k < historySize ? event.getHistoricalX(k) : event.getX(); |
| 78 | float y = k < historySize ? event.getHistoricalY(k) : event.getY(); |
| 79 | final float distance = mSwapXY ? (mDownPoint[0] - x) : (mDownPoint[1] - y); |
| 80 | if (distance > mTriggerThreshhold) { |
| 81 | mBar.showSearchPanel(); |
| 82 | mPanelShowing = true; |
| 83 | break; |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 84 | } |
| 85 | } |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 86 | } |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 87 | |
John Spurlock | ad3e6cb | 2013-04-30 08:47:43 -0400 | [diff] [blame] | 88 | if (action == MotionEvent.ACTION_DOWN) { |
| 89 | mBar.suspendAutohide(); |
| 90 | } else if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) { |
| 91 | mBar.resumeAutohide(); |
| 92 | } |
| 93 | |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 94 | mDelegateView.getLocationOnScreen(mTempPoint); |
| 95 | final float delegateX = mTempPoint[0]; |
| 96 | final float delegateY = mTempPoint[1]; |
| 97 | |
| 98 | float deltaX = sourceX - delegateX; |
| 99 | float deltaY = sourceY - delegateY; |
| 100 | event.offsetLocation(deltaX, deltaY); |
| 101 | mDelegateView.dispatchTouchEvent(event); |
| 102 | event.offsetLocation(-deltaX, -deltaY); |
| 103 | return mPanelShowing; |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 104 | } |
Jim Miller | 1615389 | 2012-05-17 19:47:55 -0700 | [diff] [blame] | 105 | |
| 106 | public void setSourceView(View view) { |
| 107 | mSourceView = view; |
| 108 | if (mSourceView != null) { |
| 109 | mTriggerThreshhold = mSourceView.getContext().getResources() |
| 110 | .getDimension(R.dimen.navbar_search_up_threshhold); |
| 111 | } |
| 112 | } |
Jim Miller | 960892c | 2012-05-23 15:50:04 -0700 | [diff] [blame] | 113 | |
| 114 | /** |
| 115 | * Selects the initial touch region based on a list of views. This is meant to be called by |
| 116 | * a container widget on children over which the initial touch should be detected. Note this |
| 117 | * will compute a minimum bound that contains all specified views. |
| 118 | * |
| 119 | * @param views |
| 120 | */ |
| 121 | public void setInitialTouchRegion(View ... views) { |
| 122 | RectF bounds = new RectF(); |
| 123 | int p[] = new int[2]; |
| 124 | for (int i = 0; i < views.length; i++) { |
| 125 | View view = views[i]; |
| 126 | if (view == null) continue; |
| 127 | view.getLocationOnScreen(p); |
| 128 | if (i == 0) { |
| 129 | bounds.set(p[0], p[1], p[0] + view.getWidth(), p[1] + view.getHeight()); |
| 130 | } else { |
| 131 | bounds.union(p[0], p[1], p[0] + view.getWidth(), p[1] + view.getHeight()); |
| 132 | } |
| 133 | } |
| 134 | mInitialTouch.set(bounds); |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * When rotation is set to NO_SENSOR, then this allows swapping x/y for gesture detection |
| 139 | * @param swap |
| 140 | */ |
| 141 | public void setSwapXY(boolean swap) { |
| 142 | mSwapXY = swap; |
| 143 | } |
Jim Miller | e898ac5 | 2012-04-06 17:10:57 -0700 | [diff] [blame] | 144 | } |