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Diffstat (limited to 'Source/WebCore/html/HTMLPlugInElement.cpp')
| -rw-r--r-- | Source/WebCore/html/HTMLPlugInElement.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/Source/WebCore/html/HTMLPlugInElement.cpp b/Source/WebCore/html/HTMLPlugInElement.cpp new file mode 100644 index 0000000..bf2722b --- /dev/null +++ b/Source/WebCore/html/HTMLPlugInElement.cpp @@ -0,0 +1,194 @@ +/** + * Copyright (C) 1999 Lars Knoll (knoll@kde.org) + * (C) 1999 Antti Koivisto (koivisto@kde.org) + * (C) 2000 Stefan Schimanski (1Stein@gmx.de) + * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#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 "ScriptController.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); // cleared in detach() + +#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; + } + + HTMLFrameOwnerElement::detach(); +} + +PassScriptInstance HTMLPlugInElement::getInstance() const +{ + Frame* frame = document()->frame(); + if (!frame) + return 0; + + // If the host dynamically turns off JavaScript (or Java) we will still return + // the cached allocated Bindings::Instance. Not supporting this edge-case is OK. + if (m_instance) + return m_instance; + + if (Widget* widget = pluginWidget()) + m_instance = frame->script()->createScriptInstanceForWidget(widget); + + return m_instance; +} + +Widget* HTMLPlugInElement::pluginWidget() const +{ + if (m_inBeforeLoadEventHandler) { + // The plug-in hasn't loaded yet, and it makes no sense to try to load if beforeload handler happened to touch the plug-in element. + // That would recursively call beforeload for the same element. + return 0; + } + + RenderWidget* renderWidget = renderWidgetForJSBindings(); + if (!renderWidget) + return 0; + + return renderWidget->widget(); +} + +bool HTMLPlugInElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const +{ + if (attrName == widthAttr || + attrName == heightAttr || + attrName == vspaceAttr || + attrName == hspaceAttr) { + result = eUniversal; + return false; + } + + if (attrName == alignAttr) { + result = eReplaced; // Share with <img> since the alignment behavior is the same. + return false; + } + + return HTMLFrameOwnerElement::mapToEntry(attrName, result); +} + +void HTMLPlugInElement::parseMappedAttribute(Attribute* attr) +{ + if (attr->name() == widthAttr) + addCSSLength(attr, CSSPropertyWidth, attr->value()); + else if (attr->name() == heightAttr) + addCSSLength(attr, CSSPropertyHeight, attr->value()); + else if (attr->name() == vspaceAttr) { + addCSSLength(attr, CSSPropertyMarginTop, attr->value()); + addCSSLength(attr, CSSPropertyMarginBottom, attr->value()); + } else if (attr->name() == hspaceAttr) { + addCSSLength(attr, CSSPropertyMarginLeft, attr->value()); + addCSSLength(attr, CSSPropertyMarginRight, attr->value()); + } else if (attr->name() == alignAttr) + addHTMLAlignment(attr); + else + HTMLFrameOwnerElement::parseMappedAttribute(attr); +} + +void HTMLPlugInElement::defaultEventHandler(Event* event) +{ + // Firefox seems to use a fake event listener to dispatch events to plug-in (tested with mouse events only). + // This is observable via different order of events - in Firefox, event listeners specified in HTML attributes fires first, then an event + // gets dispatched to plug-in, and only then other event listeners fire. Hopefully, this difference does not matter in practice. + + // FIXME: Mouse down and scroll events are passed down to plug-in via custom code in EventHandler; these code paths should be united. + + RenderObject* r = renderer(); + if (r && r->isEmbeddedObject() && toRenderEmbeddedObject(r)->showsMissingPluginIndicator()) { + toRenderEmbeddedObject(r)->handleMissingPluginIndicatorEvent(event); + return; + } + + if (!r || !r->isWidget()) + return; + Widget* widget = toRenderWidget(r)->widget(); + if (!widget) + return; + widget->handleEvent(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 /* ENABLE(NETSCAPE_PLUGIN_API) */ + +#if PLATFORM(ANDROID) +bool HTMLPlugInElement::supportsFocus() const +{ + return true; +} +#endif + +} |