void RenderFrame::layout()
{
FrameView* view = static_cast<FrameView*>(widget());
RenderView* root = view ? view->frame()->contentRenderer() : 0;
// Do not expand frames which has zero width or height
if (!width() || !height() || !root) {
updateWidgetPosition();
if (view)
view->layout();
setNeedsLayout(false);
return;
}
HTMLFrameElementBase* element = static_cast<HTMLFrameElementBase*>(node());
if (element->scrollingMode() == ScrollbarAlwaysOff && !root->isFrameSet()) {
setNeedsLayout(false);
return;
}
// Update the dimensions to get the correct width and height
updateWidgetPosition();
if (root->preferredLogicalWidthsDirty())
root->computePreferredLogicalWidths();
// Expand the frame by setting frame height = content height
setWidth(max(view->contentsWidth() + borderAndPaddingWidth(), width()));
setHeight(max(view->contentsHeight() + borderAndPaddingHeight(), height()));
// Update one more time
updateWidgetPosition();
setNeedsLayout(false);
}
void RenderSlider::computePreferredLogicalWidths()
{
m_minPreferredLogicalWidth = 0;
m_maxPreferredLogicalWidth = 0;
if (style()->width().isFixed() && style()->width().value() > 0)
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(style()->width().value());
else
computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth);
if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) {
m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->minWidth().value()));
m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->minWidth().value()));
}
if (style()->maxWidth().isFixed()) {
m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->maxWidth().value()));
m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->maxWidth().value()));
}
LayoutUnit toAdd = borderAndPaddingWidth();
m_minPreferredLogicalWidth += toAdd;
m_maxPreferredLogicalWidth += toAdd;
clearPreferredLogicalWidthsDirty();
}
void RenderDataGrid::computePreferredLogicalWidths()
{
m_minPreferredLogicalWidth = 0;
m_maxPreferredLogicalWidth = 0;
if (style()->width().isFixed() && style()->width().value() > 0)
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = computeContentBoxLogicalWidth(style()->width().value());
else
m_maxPreferredLogicalWidth = computeContentBoxLogicalWidth(cDefaultWidth);
if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) {
m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->minWidth().value()));
m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->minWidth().value()));
} else if (style()->width().isPercent() || (style()->width().isAuto() && style()->height().isPercent()))
m_minPreferredLogicalWidth = 0;
else
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth;
if (style()->maxWidth().isFixed() && style()->maxWidth().value() != undefinedLength) {
m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->maxWidth().value()));
m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->maxWidth().value()));
}
int toAdd = borderAndPaddingWidth();
m_minPreferredLogicalWidth += toAdd;
m_maxPreferredLogicalWidth += toAdd;
setPreferredLogicalWidthsDirty(false);
}
void RenderSVGRoot::updateCachedBoundaries()
{
SVGRenderSupport::computeContainerBoundingBoxes(this, m_objectBoundingBox, m_objectBoundingBoxValid, m_strokeBoundingBox, m_repaintBoundingBoxExcludingShadow);
SVGRenderSupport::intersectRepaintRectWithResources(*this, m_repaintBoundingBoxExcludingShadow);
m_repaintBoundingBoxExcludingShadow.inflate(borderAndPaddingWidth());
m_repaintBoundingBox = m_repaintBoundingBoxExcludingShadow;
SVGRenderSupport::intersectRepaintRectWithShadows(this, m_repaintBoundingBox);
}
void RenderSVGRoot::updateCachedBoundaries()
{
m_objectBoundingBox = FloatRect();
m_strokeBoundingBox = FloatRect();
m_repaintBoundingBox = FloatRect();
SVGRenderSupport::computeContainerBoundingBoxes(this, m_objectBoundingBox, m_strokeBoundingBox, m_repaintBoundingBox);
SVGRenderSupport::intersectRepaintRectWithResources(this, m_repaintBoundingBox);
m_repaintBoundingBox.inflate(borderAndPaddingWidth());
}
int RenderTextControl::textBlockWidth() const
{
Element* innerText = innerTextElement();
ASSERT(innerText);
LayoutUnit unitWidth = width() - borderAndPaddingWidth();
if (innerText->renderer())
unitWidth -= innerText->renderBox()->paddingLeft() + innerText->renderBox()->paddingRight();
return unitWidth;
}
void RenderSlider::layout()
{
ASSERT(needsLayout());
SliderThumbElement* thumbElement = shadowSliderThumb();
RenderBox* thumb = thumbElement ? toRenderBox(thumbElement->renderer()) : 0;
IntSize baseSize(borderAndPaddingWidth(), borderAndPaddingHeight());
if (thumb) {
// Allow the theme to set the size of the thumb.
if (thumb->style()->hasAppearance()) {
// FIXME: This should pass the style, not the renderer, to the theme.
theme()->adjustSliderThumbSize(thumb);
}
baseSize.expand(thumb->style()->width().calcMinValue(0), thumb->style()->height().calcMinValue(0));
}
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
IntSize oldSize = size();
setSize(baseSize);
computeLogicalWidth();
computeLogicalHeight();
updateLayerTransform();
if (thumb) {
if (oldSize != size())
thumb->setChildNeedsLayout(true, false);
LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), style()->isFlippedBlocksWritingMode());
IntRect oldThumbRect = thumb->frameRect();
thumb->layoutIfNeeded();
IntRect rect = thumbRect();
thumb->setFrameRect(rect);
if (thumb->checkForRepaintDuringLayout())
thumb->repaintDuringLayoutIfMoved(oldThumbRect);
statePusher.pop();
addOverflowFromChild(thumb);
}
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void RenderReplaced::computePreferredLogicalWidths()
{
ASSERT(preferredLogicalWidthsDirty());
LayoutUnit borderAndPadding = borderAndPaddingWidth();
m_maxPreferredLogicalWidth = computeReplacedLogicalWidth(false) + borderAndPadding;
if (style()->maxWidth().isFixed())
m_maxPreferredLogicalWidth = min<LayoutUnit>(m_maxPreferredLogicalWidth, style()->maxWidth().value() + (style()->boxSizing() == CONTENT_BOX ? borderAndPadding : ZERO_LAYOUT_UNIT));
if (hasRelativeDimensions())
m_minPreferredLogicalWidth = 0;
else
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth;
setPreferredLogicalWidthsDirty(false);
}
void RenderSVGRoot::computePreferredLogicalWidths()
{
ASSERT(preferredLogicalWidthsDirty());
int borderAndPadding = borderAndPaddingWidth();
int width = computeReplacedLogicalWidth(false) + borderAndPadding;
if (style()->maxWidth().isFixed() && style()->maxWidth().value() != undefinedLength)
width = min(width, style()->maxWidth().value() + (style()->boxSizing() == CONTENT_BOX ? borderAndPadding : 0));
if (style()->width().isPercent() || (style()->width().isAuto() && style()->height().isPercent())) {
m_minPreferredLogicalWidth = 0;
m_maxPreferredLogicalWidth = width;
} else
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = width;
setPreferredLogicalWidthsDirty(false);
}
void RenderTextControl::computePreferredLogicalWidths()
{
ASSERT(preferredLogicalWidthsDirty());
m_minPreferredLogicalWidth = 0;
m_maxPreferredLogicalWidth = 0;
if (style()->width().isFixed() && style()->width().value() >= 0)
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(style()->width().value());
else {
// Use average character width. Matches IE.
AtomicString family = style()->font().family().family();
m_maxPreferredLogicalWidth = preferredContentWidth(getAvgCharWidth(family));
if (RenderBox* innerTextRenderBox = innerTextElement()->renderBox())
m_maxPreferredLogicalWidth += innerTextRenderBox->paddingLeft() + innerTextRenderBox->paddingRight();
if (!style()->width().isPercent())
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth;
}
if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) {
m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->minWidth().value()));
m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->minWidth().value()));
}
if (style()->maxWidth().isFixed()) {
m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->maxWidth().value()));
m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->maxWidth().value()));
}
LayoutUnit toAdd = borderAndPaddingWidth();
m_minPreferredLogicalWidth += toAdd;
m_maxPreferredLogicalWidth += toAdd;
setPreferredLogicalWidthsDirty(false);
}
int RenderTextControl::textBlockWidth() const
{
Element* innerText = innerTextElement();
ASSERT(innerText);
return width() - borderAndPaddingWidth() - innerText->renderBox()->paddingLeft() - innerText->renderBox()->paddingRight();
}
