Exemple #1
0
void Axis::OverscrollBy(ParentLayerCoord aOverscroll) {
  MOZ_ASSERT(CanScroll());
  // We can get some spurious calls to OverscrollBy() with near-zero values
  // due to rounding error. Ignore those (they might trip the asserts below.)
  if (FuzzyEqualsAdditive(aOverscroll.value, 0.0f, COORDINATE_EPSILON)) {
    return;
  }
  EndOverscrollAnimation();
  aOverscroll = ApplyResistance(aOverscroll);
  if (aOverscroll > 0) {
#ifdef DEBUG
    if (!FuzzyEqualsCoordinate(GetCompositionEnd().value, GetPageEnd().value)) {
      nsPrintfCString message("composition end (%f) is not equal (within error) to page end (%f)\n",
                              GetCompositionEnd().value, GetPageEnd().value);
      NS_ASSERTION(false, message.get());
      MOZ_CRASH("GFX: Overscroll issue > 0");
    }
#endif
    MOZ_ASSERT(mOverscroll >= 0);
  } else if (aOverscroll < 0) {
#ifdef DEBUG
    if (!FuzzyEqualsCoordinate(GetOrigin().value, GetPageStart().value)) {
      nsPrintfCString message("composition origin (%f) is not equal (within error) to page origin (%f)\n",
                              GetOrigin().value, GetPageStart().value);
      NS_ASSERTION(false, message.get());
      MOZ_CRASH("GFX: Overscroll issue < 0");
    }
#endif
    MOZ_ASSERT(mOverscroll <= 0);
  }
  mOverscroll += aOverscroll;
}
Exemple #2
0
void Axis::OverscrollBy(ParentLayerCoord aOverscroll) {
  MOZ_ASSERT(CanScroll());
  StopSamplingOverscrollAnimation();
  aOverscroll = ApplyResistance(aOverscroll);
  if (aOverscroll > 0) {
#ifdef DEBUG
    if (!FuzzyEqualsCoordinate(GetCompositionEnd().value, GetPageEnd().value)) {
      nsPrintfCString message("composition end (%f) is not equal (within error) to page end (%f)\n",
                              GetCompositionEnd().value, GetPageEnd().value);
      NS_ASSERTION(false, message.get());
      MOZ_CRASH();
    }
#endif
    MOZ_ASSERT(mOverscroll >= 0);
  } else if (aOverscroll < 0) {
#ifdef DEBUG
    if (!FuzzyEqualsCoordinate(GetOrigin().value, GetPageStart().value)) {
      nsPrintfCString message("composition origin (%f) is not equal (within error) to page origin (%f)\n",
                              GetOrigin().value, GetPageStart().value);
      NS_ASSERTION(false, message.get());
      MOZ_CRASH();
    }
#endif
    MOZ_ASSERT(mOverscroll <= 0);
  }
  mOverscroll += aOverscroll;
}