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      1 package com.xtremelabs.robolectric.shadows;
      2 
      3 import android.app.Activity;
      4 import android.graphics.Point;
      5 import android.view.MotionEvent;
      6 import android.view.View;
      7 import com.google.android.maps.GeoPoint;
      8 import com.google.android.maps.MapView;
      9 import com.xtremelabs.robolectric.WithTestDefaultsRunner;
     10 import com.xtremelabs.robolectric.bytecode.AndroidTranslatorTest;
     11 import org.junit.Before;
     12 import org.junit.Test;
     13 import org.junit.runner.RunWith;
     14 
     15 import static com.xtremelabs.robolectric.shadows.ShadowMapView.toE6;
     16 import static org.hamcrest.CoreMatchers.equalTo;
     17 import static org.hamcrest.CoreMatchers.nullValue;
     18 import static org.hamcrest.CoreMatchers.sameInstance;
     19 import static org.junit.Assert.assertThat;
     20 
     21 @RunWith(WithTestDefaultsRunner.class)
     22 public class MapViewTest {
     23     private MapView mapView;
     24     private MyOverlay overlay1;
     25     private MyOverlay overlay2;
     26     private MotionEvent sourceEvent;
     27     private MyOnTouchListener mapTouchListener;
     28 
     29 
     30     @Before public void setUp() throws Exception {
     31         mapView = new MapView(new Activity(), "foo");
     32 
     33         overlay1 = new MyOverlay();
     34         overlay2 = new MyOverlay();
     35         mapTouchListener = new MyOnTouchListener();
     36 
     37         mapView.getOverlays().add(overlay1);
     38         mapView.getOverlays().add(overlay2);
     39         mapView.setOnTouchListener(mapTouchListener);
     40 
     41         sourceEvent = MotionEvent.obtain(0, 0, 0, 0, 0, 0);
     42     }
     43 
     44     @Test
     45     public void shouldDispatchTouchEventsToOverlays() throws Exception {
     46         mapView.dispatchTouchEvent(sourceEvent);
     47 
     48         assertThat(overlay1.lastMotionEvent, sameInstance(sourceEvent));
     49         assertThat(overlay2.lastMotionEvent, nullValue());
     50         assertThat(mapTouchListener.lastMotionEvent, nullValue());
     51     }
     52 
     53     @Test
     54     public void shouldDispatchTouchEventsToOverlaysUntilEventIsConsumed() throws Exception {
     55         overlay1.shouldConsumeEvent = false;
     56         overlay2.shouldConsumeEvent = true;
     57 
     58         mapView.dispatchTouchEvent(sourceEvent);
     59 
     60         assertThat(overlay1.lastMotionEvent, sameInstance(sourceEvent));
     61         assertThat(overlay2.lastMotionEvent, sameInstance(sourceEvent));
     62         assertThat(mapTouchListener.lastMotionEvent, nullValue());
     63     }
     64 
     65     @Test
     66     public void shouldDispatchTouchEventsToMapViewIfNoOverlayConsumesEvent() throws Exception {
     67         overlay1.shouldConsumeEvent = false;
     68         overlay2.shouldConsumeEvent = false;
     69 
     70         mapView.dispatchTouchEvent(sourceEvent);
     71 
     72         assertThat(overlay1.lastMotionEvent, sameInstance(sourceEvent));
     73         assertThat(overlay2.lastMotionEvent, sameInstance(sourceEvent));
     74         assertThat(mapTouchListener.lastMotionEvent, sameInstance(sourceEvent));
     75     }
     76 
     77     @Test
     78     public void dispatchTouchEvents_shouldDragMapByCorrectAmount() throws Exception {
     79         initMapForDrag();
     80 
     81         dispatchTouchEvent(MotionEvent.ACTION_DOWN, 10, 10);
     82         dispatchTouchEvent(MotionEvent.ACTION_UP, 11, 11);
     83         assertThat(mapView.getMapCenter(), equalTo(new GeoPoint(toE6(26), toE6(24))));
     84     }
     85 
     86     @Test
     87     public void dispatchTouchEvents_shouldDragMapByCorrectAmountInMultipleSteps() throws Exception {
     88         initMapForDrag();
     89 
     90         dispatchTouchEvent(MotionEvent.ACTION_DOWN, 10, 10);
     91         dispatchTouchEvent(MotionEvent.ACTION_MOVE, 11, 11);
     92         dispatchTouchEvent(MotionEvent.ACTION_MOVE, 12, 12);
     93         dispatchTouchEvent(MotionEvent.ACTION_UP, 11, 11);
     94         assertThat(mapView.getMapCenter(), equalTo(new GeoPoint(toE6(26), toE6(24))));
     95     }
     96 
     97     @Test
     98     public void dispatchTouchEvents_shouldMoveBackToCenterOnCancel() throws Exception {
     99         initMapForDrag();
    100 
    101         dispatchTouchEvent(MotionEvent.ACTION_DOWN, 10, 10);
    102         dispatchTouchEvent(MotionEvent.ACTION_MOVE, 11, 11);
    103         dispatchTouchEvent(MotionEvent.ACTION_MOVE, 12, 12);
    104         dispatchTouchEvent(MotionEvent.ACTION_CANCEL, 11, 11);
    105         assertThat(mapView.getMapCenter(), equalTo(new GeoPoint(toE6(25), toE6(25))));
    106     }
    107 
    108     private void initMapForDrag() {
    109         mapView = new MapView(null, "");
    110         mapView.layout(0, 0, 50, 50);
    111         mapView.getController().setCenter(new GeoPoint(toE6(25), toE6(25)));
    112         mapView.getController().zoomToSpan(toE6(50), toE6(50));
    113     }
    114 
    115     @Test
    116     public void getProjection_fromPixels_shouldPerformCorrectTranslations() throws Exception {
    117         int centerLat = 11;
    118         int centerLng = 16;
    119         int spanLat = 20;
    120         int spanLng = 30;
    121 
    122         mapView.getController().setCenter(new GeoPoint(toE6(centerLat), toE6(centerLng)));
    123         mapView.getController().zoomToSpan(toE6(spanLat), toE6(spanLng));
    124         mapView.layout(50, 60, 650, 460);
    125 
    126         assertThat(mapView.getProjection().fromPixels(50, 60),
    127                 equalTo(new GeoPoint(toE6(21), toE6(1))));
    128         assertThat(mapView.getProjection().fromPixels(350, 260),
    129                 equalTo(new GeoPoint(toE6(11), toE6(16))));
    130         assertThat(mapView.getProjection().fromPixels(650, 460),
    131                 equalTo(new GeoPoint(toE6(1), toE6(31))));
    132     }
    133 
    134     @Test
    135     public void getProjection_toPixels_shouldPerformCorrectTranslations() throws Exception {
    136         int centerLat = 11;
    137         int centerLng = 16;
    138         int spanLat = 20;
    139         int spanLng = 30;
    140 
    141         mapView.getController().setCenter(new GeoPoint(toE6(centerLat), toE6(centerLng)));
    142         mapView.getController().zoomToSpan(toE6(spanLat), toE6(spanLng));
    143         mapView.layout(50, 60, 650, 460);
    144 
    145         assertThat(mapView.getProjection().toPixels(new GeoPoint(toE6(21), toE6(1)), null),
    146                 equalTo(new Point(50, 60)));
    147         assertThat(mapView.getProjection().toPixels(new GeoPoint(toE6(11), toE6(16)), null),
    148                 equalTo(new Point(350, 260)));
    149         assertThat(mapView.getProjection().toPixels(new GeoPoint(toE6(1), toE6(31)), null),
    150                 equalTo(new Point(650, 460)));
    151     }
    152 
    153     private void dispatchTouchEvent(int action, int x, int y) {
    154         mapView.dispatchTouchEvent(MotionEvent.obtain(0, 0, action, x, y, 0));
    155     }
    156 
    157     private static class MyOnTouchListener implements View.OnTouchListener {
    158         private MotionEvent lastMotionEvent;
    159 
    160         @Override public boolean onTouch(View v, MotionEvent event) {
    161             lastMotionEvent = event;
    162             return false;
    163         }
    164     }
    165 
    166     private class MyOverlay extends AndroidTranslatorTest.ItemizedOverlayForTests {
    167         private MotionEvent lastMotionEvent;
    168         private boolean shouldConsumeEvent = true;
    169 
    170         public MyOverlay() {
    171             super(null);
    172         }
    173 
    174         @Override public boolean onTouchEvent(MotionEvent motionEvent, MapView mapView) {
    175             lastMotionEvent = motionEvent;
    176             return shouldConsumeEvent;
    177         }
    178     }
    179 }
    180