1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/tests/testVkbOverlap.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,105 @@
1.4 +package org.mozilla.gecko.tests;
1.5 +
1.6 +import org.mozilla.gecko.Actions;
1.7 +import org.mozilla.gecko.PaintedSurface;
1.8 +
1.9 +import android.net.Uri;
1.10 +
1.11 +/**
1.12 + * A test to ensure that when an input field is focused, it is not obscured by the VKB.
1.13 + * - Loads a page with an input field past the bottom of the visible area.
1.14 + * - scrolls down to make the input field visible at the bottom of the screen.
1.15 + * - taps on the input field to bring up the VKB
1.16 + * - verifies that the input field is still visible.
1.17 + */
1.18 +public class testVkbOverlap extends PixelTest {
1.19 + private static final int CURSOR_BLINK_PERIOD = 500;
1.20 + private static final int LESS_THAN_CURSOR_BLINK_PERIOD = CURSOR_BLINK_PERIOD - 50;
1.21 + private static final int PAGE_SETTLE_TIME = 5000;
1.22 +
1.23 + public void testVkbOverlap() {
1.24 + blockForGeckoReady();
1.25 + testSetup("initial-scale=1.0, user-scalable=no", false);
1.26 + testSetup("initial-scale=1.0", false);
1.27 + testSetup("", "phone".equals(mDevice.type));
1.28 + }
1.29 +
1.30 + private void testSetup(String viewport, boolean shouldZoom) {
1.31 + loadAndPaint(getAbsoluteUrl("/robocop/test_viewport.sjs?metadata=" + Uri.encode(viewport)));
1.32 +
1.33 + // scroll to the bottom of the page and let it settle
1.34 + Actions.RepeatedEventExpecter paintExpecter = mActions.expectPaint();
1.35 + MotionEventHelper meh = new MotionEventHelper(getInstrumentation(), mDriver.getGeckoLeft(), mDriver.getGeckoTop());
1.36 + meh.dragSync(10, 150, 10, 50);
1.37 +
1.38 + // the input field has a green background, so let's count the number of green pixels
1.39 + int greenPixelCount = 0;
1.40 +
1.41 + PaintedSurface painted = waitForPaint(paintExpecter);
1.42 + paintExpecter.unregisterListener();
1.43 + try {
1.44 + greenPixelCount = countGreenPixels(painted);
1.45 + } finally {
1.46 + painted.close();
1.47 + }
1.48 +
1.49 + mAsserter.ok(greenPixelCount > 0, "testInputVisible", "Found " + greenPixelCount + " green pixels after scrolling");
1.50 +
1.51 + paintExpecter = mActions.expectPaint();
1.52 + // the input field should be in the bottom-left corner, so tap thereabouts
1.53 + meh.tap(5, mDriver.getGeckoHeight() - 5);
1.54 +
1.55 + // After tapping in the input field, the page needs some time to do stuff, like draw and undraw the focus highlight
1.56 + // on the input field, trigger the VKB, process any resulting events generated by the system, and scroll the page. So
1.57 + // we give it a few seconds to do all that. We are sufficiently generous with our definition of "few seconds" to
1.58 + // prevent intermittent test failures.
1.59 + try {
1.60 + Thread.sleep(PAGE_SETTLE_TIME);
1.61 + } catch (InterruptedException ie) {
1.62 + ie.printStackTrace();
1.63 + }
1.64 +
1.65 + // now that the focus is in the text field we will repaint every 500ms as the cursor blinks, so we need to use a smaller
1.66 + // "no paints" threshold to consider the page painted
1.67 + paintExpecter.blockUntilClear(LESS_THAN_CURSOR_BLINK_PERIOD);
1.68 + paintExpecter.unregisterListener();
1.69 + painted = mDriver.getPaintedSurface();
1.70 + try {
1.71 + // if the vkb scrolled into view as expected, then the number of green pixels now visible should be about the
1.72 + // same as it was before, since the green pixels indicate the text input is in view. use a fudge factor of 0.9 to
1.73 + // account for borders and such of the text input which might still be out of view.
1.74 + int newCount = countGreenPixels(painted);
1.75 +
1.76 + // if zooming is allowed, the number of green pixels visible should have increased substatially
1.77 + if (shouldZoom) {
1.78 + mAsserter.ok(newCount > greenPixelCount * 1.5, "testVkbOverlap", "Found " + newCount + " green pixels after tapping; expected " + greenPixelCount);
1.79 + } else {
1.80 + mAsserter.ok((Math.abs(greenPixelCount - newCount) / greenPixelCount < 0.1), "testVkbOverlap", "Found " + newCount + " green pixels after tapping; expected " + greenPixelCount);
1.81 + }
1.82 + } finally {
1.83 + painted.close();
1.84 + }
1.85 + }
1.86 +
1.87 + private int countGreenPixels(PaintedSurface painted) {
1.88 + int count = 0;
1.89 + for (int y = painted.getHeight() - 1; y >= 0; y--) {
1.90 + for (int x = painted.getWidth() - 1; x >= 0; x--) {
1.91 + int pixel = painted.getPixelAt(x, y);
1.92 + int r = (pixel >> 16) & 0xFF;
1.93 + int g = (pixel >> 8) & 0xFF;
1.94 + int b = (pixel & 0xFF);
1.95 + if (g > (r + 0x30) && g > (b + 0x30)) {
1.96 + // there's more green in this pixel than red or blue, so count it.
1.97 + // the reason this is so hacky-looking is because even though green is supposed to
1.98 + // be (r,g,b) = (0x00, 0x80, 0x00), the GL readback ends up coming back quite
1.99 + // different.
1.100 + count++;
1.101 + }
1.102 + // uncomment for debugging:
1.103 + // if (pixel != -1) mAsserter.dumpLog("Pixel at " + x + ", " + y + ": " + Integer.toString(pixel, 16));
1.104 + }
1.105 + }
1.106 + return count;
1.107 + }
1.108 +}
