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| 1 | +package org.wordpress.aztec.demo; |
| 2 | + |
| 3 | +import static android.support.test.espresso.matcher.ViewMatchers.isDisplayingAtLeast; |
| 4 | +import static org.hamcrest.Matchers.allOf; |
| 5 | + |
| 6 | +import android.support.test.espresso.core.deps.guava.base.Optional; |
| 7 | +import android.support.test.espresso.PerformException; |
| 8 | +import android.support.test.espresso.UiController; |
| 9 | +import android.support.test.espresso.ViewAction; |
| 10 | +import android.support.test.espresso.action.CoordinatesProvider; |
| 11 | +import android.support.test.espresso.action.PrecisionDescriber; |
| 12 | +import android.support.test.espresso.action.Tap; |
| 13 | +import android.support.test.espresso.action.Tapper; |
| 14 | +import android.support.test.espresso.util.HumanReadables; |
| 15 | +import android.view.View; |
| 16 | +import android.view.ViewConfiguration; |
| 17 | +import android.webkit.WebView; |
| 18 | +import org.hamcrest.Matcher; |
| 19 | + |
| 20 | +/** |
| 21 | + * Enables clicking on views with 65% or greater displaying. |
| 22 | + */ |
| 23 | +public final class BetterClickAction implements ViewAction { |
| 24 | + private final CoordinatesProvider coordinatesProvider; |
| 25 | + private final Tapper tapper; |
| 26 | + private final PrecisionDescriber precisionDescriber; |
| 27 | + private final Optional<ViewAction> rollbackAction; |
| 28 | + public BetterClickAction(Tapper tapper, CoordinatesProvider coordinatesProvider, |
| 29 | + PrecisionDescriber precisionDescriber) { |
| 30 | + this(tapper, coordinatesProvider, precisionDescriber, null); |
| 31 | + } |
| 32 | + public BetterClickAction(Tapper tapper, CoordinatesProvider coordinatesProvider, |
| 33 | + PrecisionDescriber precisionDescriber, ViewAction rollbackAction) { |
| 34 | + this.coordinatesProvider = coordinatesProvider; |
| 35 | + this.tapper = tapper; |
| 36 | + this.precisionDescriber = precisionDescriber; |
| 37 | + this.rollbackAction = Optional.fromNullable(rollbackAction); |
| 38 | + } |
| 39 | + @Override |
| 40 | + @SuppressWarnings("unchecked") |
| 41 | + public Matcher<View> getConstraints() { |
| 42 | + Matcher<View> standardConstraint = isDisplayingAtLeast(65); |
| 43 | + if (rollbackAction.isPresent()) { |
| 44 | + return allOf(standardConstraint, rollbackAction.get().getConstraints()); |
| 45 | + } else { |
| 46 | + return standardConstraint; |
| 47 | + } |
| 48 | + } |
| 49 | + @Override |
| 50 | + public void perform(UiController uiController, View view) { |
| 51 | + float[] coordinates = coordinatesProvider.calculateCoordinates(view); |
| 52 | + float[] precision = precisionDescriber.describePrecision(); |
| 53 | + Tapper.Status status = Tapper.Status.FAILURE; |
| 54 | + int loopCount = 0; |
| 55 | + // Native event injection is quite a tricky process. A tap is actually 2 |
| 56 | + // seperate motion events which need to get injected into the system. Injection |
| 57 | + // makes an RPC call from our app under test to the Android system server, the |
| 58 | + // system server decides which window layer to deliver the event to, the system |
| 59 | + // server makes an RPC to that window layer, that window layer delivers the event |
| 60 | + // to the correct UI element, activity, or window object. Now we need to repeat |
| 61 | + // that 2x. for a simple down and up. Oh and the down event triggers timers to |
| 62 | + // detect whether or not the event is a long vs. short press. The timers are |
| 63 | + // removed the moment the up event is received (NOTE: the possibility of eventTime |
| 64 | + // being in the future is totally ignored by most motion event processors). |
| 65 | + // |
| 66 | + // Phew. |
| 67 | + // |
| 68 | + // The net result of this is sometimes we'll want to do a regular tap, and for |
| 69 | + // whatever reason the up event (last half) of the tap is delivered after long |
| 70 | + // press timeout (depending on system load) and the long press behaviour is |
| 71 | + // displayed (EG: show a context menu). There is no way to avoid or handle this more |
| 72 | + // gracefully. Also the longpress behavour is app/widget specific. So if you have |
| 73 | + // a seperate long press behaviour from your short press, you can pass in a |
| 74 | + // 'RollBack' ViewAction which when executed will undo the effects of long press. |
| 75 | + while (status != Tapper.Status.SUCCESS && loopCount < 3) { |
| 76 | + try { |
| 77 | + status = tapper.sendTap(uiController, coordinates, precision); |
| 78 | + } catch (RuntimeException re) { |
| 79 | + throw new PerformException.Builder() |
| 80 | + .withActionDescription(this.getDescription()) |
| 81 | + .withViewDescription(HumanReadables.describe(view)) |
| 82 | + .withCause(re) |
| 83 | + .build(); |
| 84 | + } |
| 85 | + int duration = ViewConfiguration.getPressedStateDuration(); |
| 86 | + // ensures that all work enqueued to process the tap has been run. |
| 87 | + if (duration > 0) { |
| 88 | + uiController.loopMainThreadForAtLeast(duration); |
| 89 | + } |
| 90 | + if (status == Tapper.Status.WARNING) { |
| 91 | + if (rollbackAction.isPresent()) { |
| 92 | + rollbackAction.get().perform(uiController, view); |
| 93 | + } else { |
| 94 | + break; |
| 95 | + } |
| 96 | + } |
| 97 | + loopCount++; |
| 98 | + } |
| 99 | + if (status == Tapper.Status.FAILURE) { |
| 100 | + throw new PerformException.Builder() |
| 101 | + .withActionDescription(this.getDescription()) |
| 102 | + .withViewDescription(HumanReadables.describe(view)) |
| 103 | + .withCause(new RuntimeException(String.format("Couldn't " |
| 104 | + + "click at: %s,%s precision: %s, %s . Tapper: %s coordinate provider: %s precision " + |
| 105 | + "describer: %s. Tried %s times. With Rollback? %s", coordinates[0], coordinates[1], |
| 106 | + precision[0], precision[1], tapper, coordinatesProvider, precisionDescriber, loopCount, |
| 107 | + rollbackAction.isPresent()))) |
| 108 | + .build(); |
| 109 | + } |
| 110 | + if (tapper == Tap.SINGLE && view instanceof WebView) { |
| 111 | + // WebViews will not process click events until double tap |
| 112 | + // timeout. Not the best place for this - but good for now. |
| 113 | + uiController.loopMainThreadForAtLeast(ViewConfiguration.getDoubleTapTimeout()); |
| 114 | + } |
| 115 | + } |
| 116 | + @Override |
| 117 | + public String getDescription() { |
| 118 | + return tapper.toString().toLowerCase() + " click"; |
| 119 | + } |
| 120 | +} |
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