bool PageViewportController::updateMinimumScaleToFit(bool userInitiatedUpdate)
{
if (m_viewportSize.isEmpty() || m_contentsSize.isEmpty())
return false;
bool currentlyScaledToFit = fuzzyCompare(m_effectiveScale, toViewportScale(m_minimumScaleToFit), 0.001);
float minimumScale = WebCore::computeMinimumScaleFactorForContentContained(m_rawAttributes, WebCore::roundedIntSize(m_viewportSize), WebCore::roundedIntSize(m_contentsSize), devicePixelRatio());
if (minimumScale <= 0)
return false;
if (!fuzzyCompare(minimumScale, m_minimumScaleToFit, 0.001)) {
m_minimumScaleToFit = minimumScale;
if (!hasSuspendedContent()) {
if (!m_hadUserInteraction || (userInitiatedUpdate && currentlyScaledToFit))
applyScaleAfterRenderingContents(toViewportScale(m_minimumScaleToFit));
else {
// Ensure the effective scale stays within bounds.
float boundedScale = innerBoundedViewportScale(m_effectiveScale);
if (!fuzzyCompare(boundedScale, m_effectiveScale, 0.001))
applyScaleAfterRenderingContents(boundedScale);
}
}
return true;
}
return false;
}
void PageViewportController::updateMinimumScaleToFit()
{
float minimumScale = WebCore::computeMinimumScaleFactorForContentContained(m_rawAttributes, WebCore::roundedIntSize(m_viewportSize), WebCore::roundedIntSize(m_contentsSize));
if (!fuzzyCompare(minimumScale, m_minimumScaleToFit, 0.001)) {
m_minimumScaleToFit = minimumScale;
if (!m_hadUserInteraction && !hasSuspendedContent())
m_client->setContentsScale(toViewportScale(minimumScale), true /* isInitialScale */);
m_client->didChangeViewportAttributes();
}
}
bool PageViewportController::updateMinimumScaleToFit()
{
if (m_viewportSize.isEmpty() || m_contentsSize.isEmpty())
return false;
float minimumScale = WebCore::computeMinimumScaleFactorForContentContained(m_rawAttributes, WebCore::roundedIntSize(m_viewportSize), WebCore::roundedIntSize(m_contentsSize), devicePixelRatio());
if (minimumScale <= 0)
return false;
if (!fuzzyCompare(minimumScale, m_minimumScaleToFit, 0.001)) {
m_minimumScaleToFit = minimumScale;
if (!m_hadUserInteraction && !hasSuspendedContent())
applyScaleAfterRenderingContents(toViewportScale(minimumScale));
return true;
}
return false;
}
