bool RenderIFrame::flattenFrame() const
{
if (!node() || !node()->hasTagName(iframeTag))
return false;
HTMLIFrameElement* element = static_cast<HTMLIFrameElement*>(node());
Frame* frame = element->document()->frame();
if (isSeamless())
return false; // Seamless iframes are already "flat", don't try to flatten them.
bool enabled = frame && frame->settings() && frame->settings()->frameFlatteningEnabled();
if (!enabled || !frame->page())
return false;
if (style()->width().isFixed() && style()->height().isFixed()) {
// Do not flatten iframes with scrolling="no".
if (element->scrollingMode() == ScrollbarAlwaysOff)
return false;
if (style()->width().value() <= 0 || style()->height().value() <= 0)
return false;
}
// Do not flatten offscreen inner frames during frame flattening, as flattening might make them visible.
IntRect boundingRect = absoluteBoundingBoxRectIgnoringTransforms();
return boundingRect.maxX() > 0 && boundingRect.maxY() > 0;
}
bool RenderIFrame::flattenFrame()
{
if (!node() || !node()->hasTagName(iframeTag))
return false;
HTMLIFrameElement* element = static_cast<HTMLIFrameElement*>(node());
bool isScrollable = element->scrollingMode() != ScrollbarAlwaysOff;
if (style()->width().isFixed() && style()->height().isFixed()) {
if (!isScrollable)
return false;
if (style()->width().value() <= 0 || style()->height().value() <= 0)
return false;
}
Frame* frame = element->document()->frame();
bool enabled = frame && frame->settings()->frameFlatteningEnabled();
if (!enabled || !frame->page())
return false;
FrameView* view = frame->page()->mainFrame()->view();
if (!view)
return false;
// Do not flatten offscreen inner frames during frame flattening.
return absoluteBoundingBoxRect().intersects(IntRect(IntPoint(0, 0), view->contentsSize()));
}
bool RenderIFrame::flattenFrame()
{
if (!node() || !node()->hasTagName(iframeTag))
return false;
HTMLIFrameElement* element = static_cast<HTMLIFrameElement*>(node());
bool isScrollable = element->scrollingMode() != ScrollbarAlwaysOff;
if (style()->width().isFixed() && style()->height().isFixed()) {
if (!isScrollable)
return false;
if (style()->width().value() <= 0 || style()->height().value() <= 0)
return false;
}
Frame* frame = element->document()->frame();
bool enabled = frame && frame->settings()->frameFlatteningEnabled();
if (!enabled || !frame->page())
return false;
FrameView* view = frame->page()->mainFrame()->view();
if (!view)
return false;
// Do not flatten offscreen inner frames during frame flattening, as flattening might make them visible.
IntRect boundingRect = absoluteBoundingBoxRect();
return boundingRect.maxX() > 0 && boundingRect.maxY() > 0;
}
bool RenderIFrame::flattenFrame()
{
if (!node() || !node()->hasTagName(iframeTag))
return false;
// CAPPFIX_WEB_HTML5: SECURITY
if (isSeamless())
return false; // Seamless iframes are already "flat", don't try to flatten them.
// CAPPFIX_WEB_HTML5_END
HTMLIFrameElement* element = static_cast<HTMLIFrameElement*>(node());
bool isScrollable = element->scrollingMode() != ScrollbarAlwaysOff;
if (!isScrollable && style()->width().isFixed()
&& style()->height().isFixed())
return false;
Frame* frame = element->document()->frame();
bool enabled = frame && frame->settings()->frameFlatteningEnabled();
if (!enabled || !frame->page())
return false;
FrameView* view = frame->page()->mainFrame()->view();
if (!view)
return false;
// Do not flatten offscreen inner frames during frame flattening.
return absoluteBoundingBoxRect().intersects(IntRect(IntPoint(0, 0), view->contentsSize()));
}
void RenderPartObject::calcWidth()
{
RenderPart::calcWidth();
if (!flattenFrame())
return;
HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(node());
bool isScrollable = frame->scrollingMode() != ScrollbarAlwaysOff;
if (isScrollable || !style()->width().isFixed()) {
FrameView* view = static_cast<FrameView*>(widget());
int border = borderLeft() + borderRight();
setWidth(max(width(), view->contentsWidth() + border));
}
}
void RenderIFrame::computeLogicalHeight()
{
RenderPart::computeLogicalHeight();
if (!flattenFrame())
return;
HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(node());
bool isScrollable = frame->scrollingMode() != ScrollbarAlwaysOff;
if (isScrollable || !style()->height().isFixed()) {
FrameView* view = static_cast<FrameView*>(widget());
if (!view)
return;
int border = borderTop() + borderBottom();
setHeight(max(height(), view->contentsHeight() + border));
}
}
void RenderIFrame::computeLogicalWidth()
{
// CAPPFIX_WEB_HTML5: SECURITY
// When we're seamless, we behave like a block. Thankfully RenderBox has all the right logic for this.
if (isSeamless())
return RenderBox::computeLogicalWidth();
// CAPPFIX_WEB_HTML5_END
RenderPart::computeLogicalWidth();
if (!flattenFrame())
return;
HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(node());
bool isScrollable = frame->scrollingMode() != ScrollbarAlwaysOff;
if (isScrollable || !style()->width().isFixed()) {
FrameView* view = static_cast<FrameView*>(widget());
if (!view)
return;
int border = borderLeft() + borderRight();
setWidth(max(width(), view->contentsWidth() + border));
}
}
void RenderPartObject::layout()
{
ASSERT(needsLayout());
#ifdef FLATTEN_IFRAME
RenderPart::calcWidth();
RenderPart::calcHeight();
// Calculate the styled dimensions by subtracting the border and padding.
int extraWidth = paddingLeft() + paddingRight() + borderLeft() + borderRight();
int extraHeight = paddingTop() + paddingBottom() + borderTop() + borderBottom();
int styleWidth = width() - extraWidth;
int styleHeight = height() - extraHeight;
// Some IFrames have a width and/or height of 1 when they are meant to be
// hidden. If that is the case, do not try to expand.
if (node()->hasTagName(iframeTag) && widget() && widget()->isFrameView() &&
styleWidth > 1 && styleHeight > 1) {
HTMLIFrameElement* element = static_cast<HTMLIFrameElement*>(node());
bool scrolling = element->scrollingMode() != ScrollbarAlwaysOff;
bool widthIsFixed = style()->width().isFixed();
bool heightIsFixed = style()->height().isFixed();
// If an iframe has a fixed dimension and suppresses scrollbars, it
// will disrupt layout if we force it to expand. Plus on a desktop,
// the extra content is not accessible.
if (scrolling || !widthIsFixed || !heightIsFixed) {
FrameView* view = static_cast<FrameView*>(widget());
RenderView* root = view ? view->frame()->contentRenderer() : NULL;
if (root && style()->visibility() != HIDDEN) {
// Update the dimensions to get the correct minimum preferred
// width
updateWidgetPosition();
// Use the preferred width if it is larger and only if
// scrollbars are visible or the width style is not fixed.
if (scrolling || !widthIsFixed)
setWidth(max(width(), root->minPrefWidth()) + extraWidth);
// Resize the view to recalc the height.
int h = height() - extraHeight;
int w = width() - extraWidth;
if (w > view->width())
h = 0;
if (w != view->width() || h != view->height()) {
view->resize(w, h);
}
// Layout the view.
//SAMSUNG CHANGE >>
// Browser freeze issue in http://www.enuri.com/
/* do {
view->layout();
} while (view->layoutPending() || root->needsLayout()); */
node()->document()->page()->mainFrame()->view()->layoutIfNeededRecursive();
//SAMSUNG CHANGE <<
int contentHeight = view->contentsHeight();
int contentWidth = view->contentsWidth();
// Only change the width or height if scrollbars are visible or
// if the style is not a fixed value. Use the maximum value so
// that iframes never shrink.
if (scrolling || !heightIsFixed)
setHeight(max(height(), contentHeight + extraHeight));
if (scrolling || !widthIsFixed)
setWidth(max(width(), contentWidth + extraWidth));
// Update one last time
updateWidgetPosition();
// Layout one more time to ensure all objects have the correct
// height.
view->layout();
#if !ASSERT_DISABLED
ASSERT(!view->layoutPending());
ASSERT(!root->needsLayout());
// Sanity check when assertions are enabled.
RenderObject* c = root->nextInPreOrder();
while (c) {
ASSERT(!c->needsLayout());
c = c->nextInPreOrder();
}
#endif
}
}
}
#else
calcWidth();
calcHeight();
#endif
RenderPart::layout();
m_overflow.clear();
addShadowOverflow();
setNeedsLayout(false);
}