HTMLPlugInElement.cpp [plain text]
#include "config.h"
#include "HTMLPlugInElement.h"
#include "Attribute.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "CSSPropertyNames.h"
#include "Document.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameTree.h"
#include "HTMLNames.h"
#include "Page.h"
#include "RenderEmbeddedObject.h"
#include "RenderWidget.h"
#include "Settings.h"
#include "Widget.h"
#if ENABLE(NETSCAPE_PLUGIN_API)
#include "npruntime_impl.h"
#endif
namespace WebCore {
using namespace HTMLNames;
HTMLPlugInElement::HTMLPlugInElement(const QualifiedName& tagName, Document* doc)
: HTMLFrameOwnerElement(tagName, doc)
, m_inBeforeLoadEventHandler(false)
#if ENABLE(NETSCAPE_PLUGIN_API)
, m_NPObject(0)
#endif
, m_isCapturingMouseEvents(false)
{
}
HTMLPlugInElement::~HTMLPlugInElement()
{
ASSERT(!m_instance);
#if ENABLE(NETSCAPE_PLUGIN_API)
if (m_NPObject) {
_NPN_ReleaseObject(m_NPObject);
m_NPObject = 0;
}
#endif
}
void HTMLPlugInElement::detach()
{
m_instance.clear();
if (m_isCapturingMouseEvents) {
if (Frame* frame = document()->frame())
frame->eventHandler()->setCapturingMouseEventsNode(0);
m_isCapturingMouseEvents = false;
}
#if ENABLE(NETSCAPE_PLUGIN_API)
if (m_NPObject) {
_NPN_ReleaseObject(m_NPObject);
m_NPObject = 0;
}
#endif
HTMLFrameOwnerElement::detach();
}
PassScriptInstance HTMLPlugInElement::getInstance()
{
Frame* frame = document()->frame();
if (!frame)
return 0;
if (m_instance)
return m_instance;
if (Widget* widget = pluginWidget())
m_instance = frame->script()->createScriptInstanceForWidget(widget);
return m_instance;
}
bool HTMLPlugInElement::guardedDispatchBeforeLoadEvent(const String& sourceURL)
{
m_inBeforeLoadEventHandler = true;
bool beforeLoadAllowedLoad = static_cast<HTMLFrameOwnerElement*>(this)->dispatchBeforeLoadEvent(sourceURL);
m_inBeforeLoadEventHandler = false;
return beforeLoadAllowedLoad;
}
Widget* HTMLPlugInElement::pluginWidget()
{
if (m_inBeforeLoadEventHandler) {
return 0;
}
RenderWidget* renderWidget = renderWidgetForJSBindings();
if (!renderWidget)
return 0;
return renderWidget->widget();
}
bool HTMLPlugInElement::isPresentationAttribute(const QualifiedName& name) const
{
if (name == widthAttr || name == heightAttr || name == vspaceAttr || name == hspaceAttr || name == alignAttr)
return true;
return HTMLFrameOwnerElement::isPresentationAttribute(name);
}
void HTMLPlugInElement::collectStyleForAttribute(Attribute* attr, StylePropertySet* style)
{
if (attr->name() == widthAttr)
addHTMLLengthToStyle(style, CSSPropertyWidth, attr->value());
else if (attr->name() == heightAttr)
addHTMLLengthToStyle(style, CSSPropertyHeight, attr->value());
else if (attr->name() == vspaceAttr) {
addHTMLLengthToStyle(style, CSSPropertyMarginTop, attr->value());
addHTMLLengthToStyle(style, CSSPropertyMarginBottom, attr->value());
} else if (attr->name() == hspaceAttr) {
addHTMLLengthToStyle(style, CSSPropertyMarginLeft, attr->value());
addHTMLLengthToStyle(style, CSSPropertyMarginRight, attr->value());
} else if (attr->name() == alignAttr)
applyAlignmentAttributeToStyle(attr, style);
else
HTMLFrameOwnerElement::collectStyleForAttribute(attr, style);
}
void HTMLPlugInElement::defaultEventHandler(Event* event)
{
RenderObject* r = renderer();
if (r && r->isEmbeddedObject() && toRenderEmbeddedObject(r)->showsUnavailablePluginIndicator()) {
toRenderEmbeddedObject(r)->handleUnavailablePluginIndicatorEvent(event);
return;
}
if (!r || !r->isWidget())
return;
RefPtr<Widget> widget = toRenderWidget(r)->widget();
if (!widget)
return;
widget->handleEvent(event);
if (event->defaultHandled())
return;
HTMLFrameOwnerElement::defaultEventHandler(event);
}
#if ENABLE(NETSCAPE_PLUGIN_API)
NPObject* HTMLPlugInElement::getNPObject()
{
ASSERT(document()->frame());
if (!m_NPObject)
m_NPObject = document()->frame()->script()->createScriptObjectForPluginElement(this);
return m_NPObject;
}
#endif
}