void ChromeClientImpl::dispatchViewportPropertiesDidChange(const ViewportArguments& arguments) const
{
#if ENABLE(VIEWPORT)
if (!m_webView->settings()->viewportEnabled() || !m_webView->isFixedLayoutModeEnabled() || !m_webView->client() || !m_webView->page())
return;
ViewportArguments args;
if (arguments == args) {
// Default viewport arguments passed in. This is a signal to reset the viewport.
args.width = ViewportArguments::ValueDesktopWidth;
} else
args = arguments;
FrameView* frameView = m_webView->mainFrameImpl()->frameView();
int dpi = screenHorizontalDPI(frameView);
ASSERT(dpi > 0);
WebViewClient* client = m_webView->client();
WebRect deviceRect = client->windowRect();
// If the window size has not been set yet don't attempt to set the viewport
if (!deviceRect.width || !deviceRect.height)
return;
Settings* settings = m_webView->page()->settings();
float devicePixelRatio = dpi / ViewportArguments::deprecatedTargetDPI;
// Call the common viewport computing logic in ViewportArguments.cpp.
ViewportAttributes computed = computeViewportAttributes(
args, settings->layoutFallbackWidth(), deviceRect.width, deviceRect.height,
devicePixelRatio, IntSize(deviceRect.width, deviceRect.height));
restrictScaleFactorToInitialScaleIfNotUserScalable(computed);
if (m_webView->ignoreViewportTagMaximumScale()) {
computed.maximumScale = max(computed.maximumScale, m_webView->maxPageScaleFactor);
computed.userScalable = true;
}
int layoutWidth = computed.layoutSize.width();
int layoutHeight = computed.layoutSize.height();
m_webView->setFixedLayoutSize(IntSize(layoutWidth, layoutHeight));
bool needInitializePageScale = !m_webView->isPageScaleFactorSet();
m_webView->setDeviceScaleFactor(devicePixelRatio);
m_webView->setPageScaleFactorLimits(computed.minimumScale, computed.maximumScale);
if (needInitializePageScale)
m_webView->setPageScaleFactorPreservingScrollOffset(computed.initialScale * devicePixelRatio);
#endif
}
String InternalSettings::configurationForViewport(float devicePixelRatio, int deviceWidth, int deviceHeight, int availableWidth, int availableHeight, ExceptionCode& ec)
{
if (!page()) {
ec = INVALID_ACCESS_ERR;
return String();
}
const int defaultLayoutWidthForNonMobilePages = 980;
ViewportArguments arguments = page()->viewportArguments();
ViewportAttributes attributes = computeViewportAttributes(arguments, defaultLayoutWidthForNonMobilePages, deviceWidth, deviceHeight, devicePixelRatio, IntSize(availableWidth, availableHeight));
restrictMinimumScaleFactorToViewportSize(attributes, IntSize(availableWidth, availableHeight));
restrictScaleFactorToInitialScaleIfNotUserScalable(attributes);
return "viewport size " + String::number(attributes.layoutSize.width()) + "x" + String::number(attributes.layoutSize.height()) + " scale " + String::number(attributes.initialScale) + " with limits [" + String::number(attributes.minimumScale) + ", " + String::number(attributes.maximumScale) + "] and userScalable " + (attributes.userScalable ? "true" : "false");
}
void DumpRenderTreeSupportEfl::dumpConfigurationForViewport(Evas_Object* ewkView, int deviceDPI, const WebCore::IntSize& deviceSize, const WebCore::IntSize& availableSize)
{
WebCore::Page* page = EWKPrivate::corePage(ewkView);
if (!page)
return;
WebCore::ViewportArguments arguments = page->mainFrame()->document()->viewportArguments();
WebCore::ViewportAttributes attributes = computeViewportAttributes(arguments,
/* default layout width for non-mobile pages */ 980,
deviceSize.width(), deviceSize.height(),
deviceDPI,
availableSize);
restrictMinimumScaleFactorToViewportSize(attributes, availableSize);
restrictScaleFactorToInitialScaleIfNotUserScalable(attributes);
fprintf(stdout, "viewport size %dx%d scale %f with limits [%f, %f] and userScalable %f\n", attributes.layoutSize.width(), attributes.layoutSize.height(), attributes.initialScale, attributes.minimumScale, attributes.maximumScale, attributes.userScalable);
}
void ChromeClientImpl::dispatchViewportPropertiesDidChange(const ViewportArguments& arguments) const
{
#if ENABLE(VIEWPORT)
if (!m_webView->settings()->viewportEnabled() || !m_webView->isFixedLayoutModeEnabled() || !m_webView->client() || !m_webView->page())
return;
bool useDefaultDeviceScaleFactor = false;
ViewportArguments args;
if (arguments == args) {
// Default viewport arguments passed in. This is a signal to reset the viewport.
args.width = ViewportArguments::ValueDesktopWidth;
useDefaultDeviceScaleFactor = true;
} else
args = arguments;
FrameView* frameView = m_webView->mainFrameImpl()->frameView();
int dpi = screenHorizontalDPI(frameView);
ASSERT(dpi > 0);
WebViewClient* client = m_webView->client();
WebRect deviceRect = client->windowRect();
// If the window size has not been set yet don't attempt to set the viewport
if (!deviceRect.width || !deviceRect.height)
return;
Settings* settings = m_webView->page()->settings();
// Call the common viewport computing logic in ViewportArguments.cpp.
ViewportAttributes computed = computeViewportAttributes(
args, settings->layoutFallbackWidth(), deviceRect.width, deviceRect.height,
dpi, IntSize(deviceRect.width, deviceRect.height));
int layoutWidth = computed.layoutSize.width();
int layoutHeight = computed.layoutSize.height();
m_webView->setFixedLayoutSize(IntSize(layoutWidth, layoutHeight));
// FIXME: Investigate the impact this has on layout/rendering if any.
// This exposes the correct device scale to javascript and media queries.
if (useDefaultDeviceScaleFactor && settings->defaultDeviceScaleFactor())
m_webView->setDeviceScaleFactor(settings->defaultDeviceScaleFactor());
else
m_webView->setDeviceScaleFactor(computed.devicePixelRatio);
m_webView->setPageScaleFactorLimits(computed.minimumScale, computed.maximumScale);
m_webView->setPageScaleFactorPreservingScrollOffset(computed.initialScale * computed.devicePixelRatio);
#endif
}
