void RenderFrameSet::positionFrames()
{
RenderBox* child = firstChildBox();
if (!child)
return;
int rows = frameSetElement().totalRows();
int cols = frameSetElement().totalCols();
int yPos = 0;
int borderThickness = frameSetElement().border();
for (int r = 0; r < rows; r++) {
int xPos = 0;
int height = m_rows.m_sizes[r];
for (int c = 0; c < cols; c++) {
child->setLocation(IntPoint(xPos, yPos));
int width = m_cols.m_sizes[c];
// has to be resized and itself resize its contents
if (width != child->width() || height != child->height()) {
child->setWidth(width);
child->setHeight(height);
#if PLATFORM(IOS)
// FIXME: Is this iOS-specific?
child->setNeedsLayout(MarkOnlyThis);
#else
child->setNeedsLayout();
#endif
child->layout();
}
xPos += width + borderThickness;
child = child->nextSiblingBox();
if (!child)
return;
}
yPos += height + borderThickness;
}
// all the remaining frames are hidden to avoid ugly spurious unflowed frames
for (; child; child = child->nextSiblingBox()) {
child->setWidth(0);
child->setHeight(0);
child->clearNeedsLayout();
}
}
void RenderFrameSet::positionFramesWithFlattening()
{
RenderBox* child = firstChildBox();
if (!child)
return;
int rows = frameSetElement().totalRows();
int cols = frameSetElement().totalCols();
int borderThickness = frameSetElement().border();
bool repaintNeeded = false;
// calculate frameset height based on actual content height to eliminate scrolling
bool out = false;
for (int r = 0; r < rows && !out; r++) {
int extra = 0;
int height = m_rows.m_sizes[r];
for (int c = 0; c < cols; c++) {
IntRect oldFrameRect = pixelSnappedIntRect(child->frameRect());
int width = m_cols.m_sizes[c];
bool fixedWidth = frameSetElement().colLengths() && frameSetElement().colLengths()[c].isFixed();
bool fixedHeight = frameSetElement().rowLengths() && frameSetElement().rowLengths()[r].isFixed();
// has to be resized and itself resize its contents
if (!fixedWidth)
child->setWidth(width ? width + extra / (cols - c) : 0);
else
child->setWidth(width);
child->setHeight(height);
child->setNeedsLayout();
if (child->isFrameSet())
toRenderFrameSet(child)->layout();
else
toRenderFrame(child)->layoutWithFlattening(fixedWidth, fixedHeight);
if (child->height() > m_rows.m_sizes[r])
m_rows.m_sizes[r] = child->height();
if (child->width() > m_cols.m_sizes[c])
m_cols.m_sizes[c] = child->width();
if (child->frameRect() != oldFrameRect)
repaintNeeded = true;
// difference between calculated frame width and the width it actually decides to have
extra += width - m_cols.m_sizes[c];
child = child->nextSiblingBox();
if (!child) {
out = true;
break;
}
}
}
int xPos = 0;
int yPos = 0;
out = false;
child = firstChildBox();
for (int r = 0; r < rows && !out; r++) {
xPos = 0;
for (int c = 0; c < cols; c++) {
// ensure the rows and columns are filled
IntRect oldRect = pixelSnappedIntRect(child->frameRect());
child->setLocation(IntPoint(xPos, yPos));
child->setHeight(m_rows.m_sizes[r]);
child->setWidth(m_cols.m_sizes[c]);
if (child->frameRect() != oldRect) {
repaintNeeded = true;
// update to final size
child->setNeedsLayout();
if (child->isFrameSet())
toRenderFrameSet(child)->layout();
else
toRenderFrame(child)->layoutWithFlattening(true, true);
}
xPos += m_cols.m_sizes[c] + borderThickness;
child = child->nextSiblingBox();
if (!child) {
out = true;
break;
}
}
yPos += m_rows.m_sizes[r] + borderThickness;
}
setWidth(xPos - borderThickness);
setHeight(yPos - borderThickness);
if (repaintNeeded)
repaint();
// all the remaining frames are hidden to avoid ugly spurious unflowed frames
for (; child; child = child->nextSiblingBox()) {
child->setWidth(0);
child->setHeight(0);
child->clearNeedsLayout();
}
}