Mercurial > gmapzoominvert

comparison GMapZoomInvert/src/net/bgreco/gmapzoominvert/GMapZoomInvert.java @ 0:3da8a7a621cd

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Initial commit
author Brad Greco <brad@bgreco.net>
date Mon, 20 Jan 2014 22:56:13 -0600
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children 30f975176f8e
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-1:000000000000 0:3da8a7a621cd
1 /* Copyright (c) 2014 Brad Greco <brad@bgreco.net>
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 * IN THE SOFTWARE.
20 */
21
22 package net.bgreco.gmapzoominvert;
23
24 import static de.robv.android.xposed.XposedHelpers.findAndHookMethod;
25 import android.view.MotionEvent;
26 import de.robv.android.xposed.IXposedHookLoadPackage;
27 import de.robv.android.xposed.XC_MethodHook;
28 import de.robv.android.xposed.callbacks.XC_LoadPackage.LoadPackageParam;
29
30 public class GMapZoomInvert implements IXposedHookLoadPackage {
31
32 private float lastTapX;
33 private float lastTapY;
34 private long lastTapTime = 0;
35 private boolean doubleTap = false;
36 private boolean zooming = false;
37
38 @Override
39 public void handleLoadPackage(LoadPackageParam lpparam) throws Throwable {
40 if(!lpparam.packageName.equals("com.google.android.apps.maps"))
41 return;
42
43 findAndHookMethod("com.google.android.apps.gmm.map.legacy.internal.vector.VectorMapViewImpl", lpparam.classLoader, "onTouchEvent", MotionEvent.class, new XC_MethodHook() {
44
45 @Override
46 protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
47 MotionEvent e = (MotionEvent) param.args[0];
48 int action = e.getAction();
49 // Detect double taps
50 if(action == MotionEvent.ACTION_DOWN) {
51 // Do our best to mimic the Google Maps double tap detection logic
52 if(e.getEventTime() < lastTapTime + 250) {
53 if(e.getX() - lastTapX > -150 && e.getX() - lastTapX < 100 && e.getY() - lastTapY > -150 && e.getY() - lastTapY < 100) {
54 doubleTap = true;
55 }
56 }
57 lastTapTime = e.getEventTime();
58 lastTapX = e.getX();
59 lastTapY = e.getY();
60 } else if(action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
61 // Also Invert the Y axis on release, otherwise the zoom will snap back
62 if(zooming) {
63 e.setLocation(e.getX(), lastTapY - (e.getY() - lastTapY));
64 param.args[0] = e;
65 }
66 doubleTap = false;
67 zooming = false;
68 } else if(action == MotionEvent.ACTION_MOVE) {
69 // Invert the Y axis of the zoom gesture
70 if(e.getPointerCount() == 1) {
71 if(doubleTap) {
72 //Log.d("gmapzoominvert", "y offset: " + (lastTapY - e.getY()));
73 e.setLocation(e.getX(), lastTapY - (e.getY() - lastTapY));
74 param.args[0] = e;
75 zooming = true;
76 }
77 } else {
78 // Another finger pressed cancels the zoom gesture
79 doubleTap = false;
80 zooming = false;
81 }
82 }
83 }
84
85 });
86 }
87
88 }