PassRefPtr<PictureSnapshot> PictureSnapshot::load(const Vector<RefPtr<TilePictureStream>>& tiles)
{
ASSERT(!tiles.isEmpty());
Vector<RefPtr<SkPicture>> pictures;
pictures.reserveCapacity(tiles.size());
FloatRect unionRect;
for (const auto& tileStream : tiles) {
SkMemoryStream stream(tileStream->data.begin(), tileStream->data.size());
RefPtr<SkPicture> picture = adoptRef(SkPicture::CreateFromStream(&stream, decodeBitmap));
if (!picture)
return nullptr;
FloatRect cullRect(picture->cullRect());
cullRect.moveBy(tileStream->layerOffset);
unionRect.unite(cullRect);
pictures.append(picture);
}
if (tiles.size() == 1)
return adoptRef(new PictureSnapshot(pictures[0]));
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(unionRect.width(), unionRect.height(), 0, 0);
for (size_t i = 0; i < pictures.size(); ++i) {
canvas->save();
canvas->translate(tiles[i]->layerOffset.x() - unionRect.x(), tiles[i]->layerOffset.y() - unionRect.y());
pictures[i]->playback(canvas, 0);
canvas->restore();
}
return adoptRef(new PictureSnapshot(adoptRef(recorder.endRecordingAsPicture())));
}
void PaintLayerPainter::paintOverflowControlsForFragments(const PaintLayerFragments& layerFragments, GraphicsContext& context, const PaintLayerPaintingInfo& localPaintingInfo, PaintLayerFlags paintFlags)
{
bool needsScope = layerFragments.size() > 1;
for (auto& fragment : layerFragments) {
Optional<ScopeRecorder> scopeRecorder;
if (needsScope)
scopeRecorder.emplace(context);
Optional<LayerClipRecorder> clipRecorder;
if (needsToClip(localPaintingInfo, fragment.backgroundRect))
clipRecorder.emplace(context, *m_paintLayer.layoutObject(), DisplayItem::ClipLayerOverflowControls, fragment.backgroundRect, &localPaintingInfo, fragment.paginationOffset, paintFlags);
if (PaintLayerScrollableArea* scrollableArea = m_paintLayer.scrollableArea()) {
CullRect cullRect(pixelSnappedIntRect(fragment.backgroundRect.rect()));
ScrollableAreaPainter(*scrollableArea).paintOverflowControls(context, roundedIntPoint(toPoint(fragment.layerBounds.location() - m_paintLayer.layoutBoxLocation())), cullRect, true);
}
}
}
bool LineBoxList::hitTest(LineLayoutBoxModel layoutObject, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction) const
{
if (hitTestAction != HitTestForeground)
return false;
ASSERT(layoutObject.isLayoutBlock() || (layoutObject.isLayoutInline() && layoutObject.hasLayer())); // The only way an inline could hit test like this is if it has a layer.
// If we have no lines then we have no work to do.
if (!firstLineBox())
return false;
LayoutPoint point = locationInContainer.point();
CullRect cullRect(firstLineBox()->isHorizontal() ?
IntRect(point.x(), point.y() - locationInContainer.topPadding(), 1, locationInContainer.topPadding() + locationInContainer.bottomPadding() + 1) :
IntRect(point.x() - locationInContainer.leftPadding(), point.y(), locationInContainer.rightPadding() + locationInContainer.leftPadding() + 1, 1));
if (!anyLineIntersectsRect(layoutObject, cullRect, accumulatedOffset))
return false;
// See if our root lines contain the point. If so, then we hit test
// them further. Note that boxes can easily overlap, so we can't make any assumptions
// based off positions of our first line box or our last line box.
for (InlineFlowBox* curr = lastLineBox(); curr; curr = curr->prevLineBox()) {
RootInlineBox& root = curr->root();
if (rangeIntersectsRect(layoutObject, curr->logicalTopVisualOverflow(root.lineTop()), curr->logicalBottomVisualOverflow(root.lineBottom()), cullRect, accumulatedOffset)) {
bool inside = curr->nodeAtPoint(result, locationInContainer, accumulatedOffset, root.lineTop(), root.lineBottom());
if (inside) {
layoutObject.updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
return true;
}
}
}
return false;
}
