void ensureOriginalZoomFactor(FrameView* frameView)
{
if (m_originalZoomFactor)
return;
m_webView->setPageScaleFactor(1, WebPoint());
m_webView->setZoomLevel(false, 0);
WebSize scaledEmulatedSize = scaledEmulatedFrameSize(frameView);
m_originalZoomFactor = static_cast<double>(scaledEmulatedSize.width) / frameView->contentsWidth();
}
void autoZoomPageToFitWidth(Frame* frame)
{
if (!frame)
return;
frame->setTextZoomFactor(m_webView->emulatedTextZoomFactor());
WebSize scaledFrameSize = scaledEmulatedFrameSize(frame->view());
ensureOriginalZoomFactor(frame->view());
double sizeRatio = static_cast<double>(scaledFrameSize.width) / m_emulatedFrameSize.width;
frame->setPageAndTextZoomFactors(sizeRatio * m_originalZoomFactor, m_webView->emulatedTextZoomFactor());
Document* doc = frame->document();
doc->styleResolverChanged(RecalcStyleImmediately);
doc->updateLayout();
}
void applySizeOverrideInternal(FrameView* frameView, FitWindowFlag fitWindowFlag)
{
WebSize scrollbarDimensions = forcedScrollbarDimensions(frameView);
WebSize effectiveEmulatedSize = (fitWindowFlag == FitWindowAllowed) ? scaledEmulatedFrameSize(frameView) : m_emulatedFrameSize;
int overrideWidth = effectiveEmulatedSize.width + scrollbarDimensions.width;
int overrideHeight = effectiveEmulatedSize.height + scrollbarDimensions.height;
if (IntSize(overrideWidth, overrideHeight) != frameView->size())
frameView->resize(overrideWidth, overrideHeight);
Document* doc = frameView->frame()->document();
doc->styleResolverChanged(RecalcStyleImmediately);
doc->updateLayout();
}
