void GraphicsLayerAndroid::updateFixedPosition()
{
RenderLayer* renderLayer = renderLayerFromClient(m_client);
if (!renderLayer)
return;
RenderView* view = static_cast<RenderView*>(renderLayer->renderer());
if (!view)
return;
// We will need the Iframe flag in the LayerAndroid tree for fixed position
if (view->isRenderIFrame())
m_contentLayer->setIsIframe(true);
// If we are a fixed position layer, just set it
if (view->isPositioned() && view->style()->position() == FixedPosition) {
// We need to get the passed CSS properties for the element
SkLength left, top, right, bottom;
left = convertLength(view->style()->left());
top = convertLength(view->style()->top());
right = convertLength(view->style()->right());
bottom = convertLength(view->style()->bottom());
// We also need to get the margin...
SkLength marginLeft, marginTop, marginRight, marginBottom;
marginLeft = convertLength(view->style()->marginLeft());
marginTop = convertLength(view->style()->marginTop());
marginRight = convertLength(view->style()->marginRight());
marginBottom = convertLength(view->style()->marginBottom());
// In order to compute the fixed element's position, we need the width
// and height of the element when bottom or right is defined.
// And here we should use the non-overflowed value, that means, the
// overflowed content (e.g. outset shadow) will not be counted into the
// width and height.
int w = view->width();
int h = view->height();
int paintingOffsetX = - offsetFromRenderer().width();
int paintingOffsetY = - offsetFromRenderer().height();
SkRect viewRect;
viewRect.set(paintingOffsetX, paintingOffsetY, paintingOffsetX + w, paintingOffsetY + h);
IntPoint renderLayerPos(renderLayer->x(), renderLayer->y());
m_contentLayer->setFixedPosition(left, top, right, bottom,
marginLeft, marginTop,
marginRight, marginBottom,
renderLayerPos,
viewRect);
}
}
void PrintContext::computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight, bool allowHorizontalTiling)
{
m_pageRects.clear();
outPageHeight = 0;
if (!m_frame->document() || !m_frame->view() || !m_frame->document()->renderer())
return;
if (userScaleFactor <= 0) {
LOG_ERROR("userScaleFactor has bad value %.2f", userScaleFactor);
return;
}
RenderView* view = toRenderView(m_frame->document()->renderer());
bool isHorizontal = view->style()->isHorizontalWritingMode();
float pageWidth;
float pageHeight;
if (isHorizontal) {
pageWidth = view->docWidth();
///NOTE: if we do not reuse the previously set logical page height,
/// we can end up with off-by-one erros in the page height,
/// leading to rendering issues (e.g. rows overlap pagebreaks)
if (view->pageLogicalHeight() == 0) {
float ratio = printRect.height() / printRect.width();
pageHeight = floorf(pageWidth * ratio);
} else {
pageHeight = view->pageLogicalHeight();
}
} else {
float ratio = printRect.width() / printRect.height();
pageHeight = view->docHeight();
pageWidth = floorf(pageHeight * ratio);
}
outPageHeight = pageHeight; // this is the height of the page adjusted by margins
pageHeight -= headerHeight + footerHeight;
if (pageHeight <= 0) {
LOG_ERROR("pageHeight has bad value %.2f", pageHeight);
return;
}
computePageRectsWithPageSizeInternal(FloatSize(pageWidth / userScaleFactor, pageHeight / userScaleFactor), allowHorizontalTiling);
}
void PrintContext::computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight, bool allowHorizontalTiling)
{
m_pageRects.clear();
outPageHeight = 0;
if (!m_frame->document() || !m_frame->view() || !m_frame->document()->renderer())
return;
if (userScaleFactor <= 0) {
LOG_ERROR("userScaleFactor has bad value %.2f", userScaleFactor);
return;
}
RenderView* view = toRenderView(m_frame->document()->renderer());
bool isHorizontal = view->style()->isHorizontalWritingMode();
float pageWidth;
float pageHeight;
const IntRect& documentRect = view->documentRect();
if (isHorizontal) {
float ratio = printRect.height() / printRect.width();
pageWidth = documentRect.width();
pageHeight = floorf(pageWidth * ratio);
} else {
float ratio = printRect.width() / printRect.height();
pageHeight = documentRect.height();
pageWidth = floorf(pageHeight * ratio);
}
outPageHeight = pageHeight; // this is the height of the page adjusted by margins
pageHeight -= headerHeight + footerHeight;
if (pageHeight <= 0) {
LOG_ERROR("pageHeight has bad value %.2f", pageHeight);
return;
}
computePageRectsWithPageSizeInternal(FloatSize(pageWidth / userScaleFactor, pageHeight / userScaleFactor), allowHorizontalTiling);
}
void FrameView::performPostLayoutTasks()
{
if (d->m_firstLayoutCallbackPending) {
d->m_firstLayoutCallbackPending = false;
m_frame->loader()->didFirstLayout();
}
RenderView* root = m_frame->contentRenderer();
root->updateWidgetPositions();
if (m_widgetUpdateSet && d->m_nestedLayoutCount <= 1) {
Vector<RenderPartObject*> objectVector;
copyToVector(*m_widgetUpdateSet, objectVector);
size_t size = objectVector.size();
for (size_t i = 0; i < size; ++i) {
RenderPartObject* object = objectVector[i];
object->updateWidget(false);
// updateWidget() can destroy the RenderPartObject, so we need to make sure it's
// alive by checking if it's still in m_widgetUpdateSet.
if (m_widgetUpdateSet->contains(object))
object->updateWidgetPosition();
}
m_widgetUpdateSet->clear();
}
resumeScheduledEvents();
if (!root->printing()) {
IntSize currentSize = IntSize(width(), height());
float currentZoomFactor = root->style()->zoom();
bool resized = !d->m_firstLayout && (currentSize != d->m_lastLayoutSize || currentZoomFactor != d->m_lastZoomFactor);
d->m_lastLayoutSize = currentSize;
d->m_lastZoomFactor = currentZoomFactor;
if (resized)
m_frame->sendResizeEvent();
}
}
void PrintContext::computePageRectsWithPageSizeInternal(const FloatSize& pageSizeInPixels, bool allowInlineDirectionTiling)
{
if (!m_frame->document() || !m_frame->view() || !m_frame->document()->renderView())
return;
RenderView* view = m_frame->document()->renderView();
IntRect docRect = view->documentRect();
int pageWidth = pageSizeInPixels.width();
int pageHeight = pageSizeInPixels.height();
bool isHorizontal = view->style()->isHorizontalWritingMode();
int docLogicalHeight = isHorizontal ? docRect.height() : docRect.width();
int pageLogicalHeight = isHorizontal ? pageHeight : pageWidth;
int pageLogicalWidth = isHorizontal ? pageWidth : pageHeight;
int inlineDirectionStart;
int inlineDirectionEnd;
int blockDirectionStart;
int blockDirectionEnd;
if (isHorizontal) {
if (view->style()->isFlippedBlocksWritingMode()) {
blockDirectionStart = docRect.maxY();
blockDirectionEnd = docRect.y();
} else {
blockDirectionStart = docRect.y();
blockDirectionEnd = docRect.maxY();
}
inlineDirectionStart = view->style()->isLeftToRightDirection() ? docRect.x() : docRect.maxX();
inlineDirectionEnd = view->style()->isLeftToRightDirection() ? docRect.maxX() : docRect.x();
} else {
if (view->style()->isFlippedBlocksWritingMode()) {
blockDirectionStart = docRect.maxX();
blockDirectionEnd = docRect.x();
} else {
blockDirectionStart = docRect.x();
blockDirectionEnd = docRect.maxX();
}
inlineDirectionStart = view->style()->isLeftToRightDirection() ? docRect.y() : docRect.maxY();
inlineDirectionEnd = view->style()->isLeftToRightDirection() ? docRect.maxY() : docRect.y();
}
unsigned pageCount = ceilf((float)docLogicalHeight / pageLogicalHeight);
for (unsigned i = 0; i < pageCount; ++i) {
int pageLogicalTop = blockDirectionEnd > blockDirectionStart ?
blockDirectionStart + i * pageLogicalHeight :
blockDirectionStart - (i + 1) * pageLogicalHeight;
if (allowInlineDirectionTiling) {
for (int currentInlinePosition = inlineDirectionStart;
inlineDirectionEnd > inlineDirectionStart ? currentInlinePosition < inlineDirectionEnd : currentInlinePosition > inlineDirectionEnd;
currentInlinePosition += (inlineDirectionEnd > inlineDirectionStart ? pageLogicalWidth : -pageLogicalWidth)) {
int pageLogicalLeft = inlineDirectionEnd > inlineDirectionStart ? currentInlinePosition : currentInlinePosition - pageLogicalWidth;
IntRect pageRect(pageLogicalLeft, pageLogicalTop, pageLogicalWidth, pageLogicalHeight);
if (!isHorizontal)
pageRect = pageRect.transposedRect();
m_pageRects.append(pageRect);
}
} else {
int pageLogicalLeft = inlineDirectionEnd > inlineDirectionStart ? inlineDirectionStart : inlineDirectionStart - pageLogicalWidth;
IntRect pageRect(pageLogicalLeft, pageLogicalTop, pageLogicalWidth, pageLogicalHeight);
if (!isHorizontal)
pageRect = pageRect.transposedRect();
m_pageRects.append(pageRect);
}
}
}