382 lines
12 KiB
C++
382 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*/
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#include "nsIDOMHTMLAppletElement.h"
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#include "nsIScriptObjectOwner.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIHTMLContent.h"
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#include "nsGenericHTMLElement.h"
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#include "nsHTMLAtoms.h"
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#include "nsHTMLIIDs.h"
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#include "nsIStyleContext.h"
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#include "nsIMutableStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIDocument.h"
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#include "nsIPresShell.h"
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#include "nsIFrame.h"
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#include "nsIServiceManager.h"
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#include "nsIJVMManager.h"
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#include "nsILiveConnectManager.h"
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#include "nsIPluginInstance.h"
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#include "nsIJVMPluginInstance.h"
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#include "nsLayoutAtoms.h"
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// XXX this is to get around conflicts with windows.h defines
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// introduced through jni.h
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#ifdef XP_PC
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#undef GetClassName
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#undef GetObject
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#endif
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class nsHTMLAppletElement : public nsIDOMHTMLAppletElement,
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public nsIJSScriptObject,
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public nsIHTMLContent
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{
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public:
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nsHTMLAppletElement(nsINodeInfo *aNodeInfo);
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virtual ~nsHTMLAppletElement();
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIDOMNode
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NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
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// nsIDOMElement
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NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
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// nsIDOMHTMLElement
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NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
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// nsIDOMHTMLAppletElement
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NS_DECL_IDOMHTMLAPPLETELEMENT
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// nsIJSScriptObject
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virtual PRBool AddProperty(JSContext *aContext, JSObject *aObj,
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jsval aID, jsval *aVp) {
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return mInner.AddProperty(aContext, aObj, aID, aVp);
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}
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virtual PRBool DeleteProperty(JSContext *aContext, JSObject *aObj,
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jsval aID, jsval *aVp) {
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return mInner.DeleteProperty(aContext, aObj, aID, aVp);
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}
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virtual PRBool GetProperty(JSContext *aContext, JSObject *aObj,
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jsval aID, jsval *aVp) {
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return mInner.GetProperty(aContext, aObj, aID, aVp);
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}
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virtual PRBool SetProperty(JSContext *aContext, JSObject *aObj,
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jsval aID, jsval *aVp) {
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return mInner.SetProperty(aContext, aObj, aID, aVp);
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}
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virtual PRBool EnumerateProperty(JSContext *aContext, JSObject *aObj) {
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return mInner.EnumerateProperty(aContext, aObj);
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}
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virtual PRBool Resolve(JSContext *aContext, JSObject *aObj, jsval aID,
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PRBool *aDidDefineProperty) {
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return mInner.Resolve(aContext, aObj, aID, aDidDefineProperty);
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}
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virtual PRBool Convert(JSContext *aContext, JSObject *aObj, jsval aID) {
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return mInner.Convert(aContext, aObj, aID);
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}
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virtual void Finalize(JSContext *aContext, JSObject *aObj) {
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mInner.Finalize(aContext, aObj);
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}
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NS_IMETHOD GetScriptObject(nsIScriptContext* aContext,
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void** aScriptObject);
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NS_IMETHOD SetScriptObject(void *aScriptObject);
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// nsIContent
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NS_IMPL_ICONTENT_USING_GENERIC(mInner)
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// nsIHTMLContent
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NS_IMPL_IHTMLCONTENT_USING_GENERIC(mInner)
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protected:
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nsGenericHTMLContainerElement mInner;
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PRBool mReflectedApplet;
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};
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nsresult
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NS_NewHTMLAppletElement(nsIHTMLContent** aInstancePtrResult,
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nsINodeInfo *aNodeInfo)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtrResult);
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NS_ENSURE_ARG_POINTER(aNodeInfo);
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nsIHTMLContent* it = new nsHTMLAppletElement(aNodeInfo);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(NS_GET_IID(nsIHTMLContent), (void**) aInstancePtrResult);
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}
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nsHTMLAppletElement::nsHTMLAppletElement(nsINodeInfo *aNodeInfo)
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{
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NS_INIT_REFCNT();
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mInner.Init(this, aNodeInfo);
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mReflectedApplet = PR_FALSE;
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}
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nsHTMLAppletElement::~nsHTMLAppletElement()
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{
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}
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NS_IMPL_ADDREF(nsHTMLAppletElement)
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NS_IMPL_RELEASE(nsHTMLAppletElement)
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nsresult
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nsHTMLAppletElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
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if (aIID.Equals(NS_GET_IID(nsIDOMHTMLAppletElement))) {
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nsIDOMHTMLAppletElement* tmp = this;
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*aInstancePtr = (void*) tmp;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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nsresult
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nsHTMLAppletElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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nsHTMLAppletElement* it = new nsHTMLAppletElement(mInner.mNodeInfo);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsCOMPtr<nsIDOMNode> kungFuDeathGrip(it);
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mInner.CopyInnerTo(this, &it->mInner, aDeep);
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return it->QueryInterface(NS_GET_IID(nsIDOMNode), (void**) aReturn);
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}
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Align, align)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Alt, alt)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Archive, archive)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Code, code)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, CodeBase, codebase)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Height, height)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Hspace, hspace)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Name, name)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Object, object)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Vspace, vspace)
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NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Width, width)
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NS_IMETHODIMP
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nsHTMLAppletElement::StringToAttribute(nsIAtom* aAttribute,
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const nsAReadableString& aValue,
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nsHTMLValue& aResult)
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{
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if (aAttribute == nsHTMLAtoms::align) {
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if (nsGenericHTMLElement::ParseAlignValue(aValue, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if (nsGenericHTMLElement::ParseImageAttribute(aAttribute,
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aValue, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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return NS_CONTENT_ATTR_NOT_THERE;
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}
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NS_IMETHODIMP
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nsHTMLAppletElement::AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsAWritableString& aResult) const
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{
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if (aAttribute == nsHTMLAtoms::align) {
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if (eHTMLUnit_Enumerated == aValue.GetUnit()) {
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nsGenericHTMLElement::AlignValueToString(aValue, aResult);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if (nsGenericHTMLElement::ImageAttributeToString(aAttribute,
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aValue, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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return mInner.AttributeToString(aAttribute, aValue, aResult);
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}
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static void
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MapAttributesInto(const nsIHTMLMappedAttributes* aAttributes,
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nsIMutableStyleContext* aContext,
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nsIPresContext* aPresContext)
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{
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
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nsGenericHTMLElement::MapImageAttributesInto(aAttributes, aContext, aPresContext);
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nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aContext, aPresContext);
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nsGenericHTMLElement::MapImageBorderAttributeInto(aAttributes, aContext, aPresContext, nsnull);
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}
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NS_IMETHODIMP
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nsHTMLAppletElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
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PRInt32& aHint) const
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{
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if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
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if (! nsGenericHTMLElement::GetImageMappedAttributesImpact(aAttribute, aHint)) {
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if (! nsGenericHTMLElement::GetImageAlignAttributeImpact(aAttribute, aHint)) {
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if (! nsGenericHTMLElement::GetImageBorderAttributeImpact(aAttribute, aHint)) {
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aHint = NS_STYLE_HINT_CONTENT;
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}
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLAppletElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
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nsMapAttributesFunc& aMapFunc) const
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{
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aFontMapFunc = nsnull;
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aMapFunc = &MapAttributesInto;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLAppletElement::HandleDOMEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus* aEventStatus)
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{
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return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
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aFlags, aEventStatus);
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}
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extern nsresult NS_GetObjectFramePluginInstance(nsIFrame* aFrame, nsIPluginInstance*& aPluginInstance);
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/**
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* For backwards compatibility an applet element's JavaScript object should expose both the public
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* fields of the applet, and the attributes of the applet tag. The call to nsGenericElement::GetScriptObject
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* takes case of the tag attributes. Here we generate a JavaScript reference to the applet object itself,
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* and set its __proto__ property to the tag object. That way, if the Java applet has public fields that
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* shadow the tag attributes, the applet's fields take precedence.
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*/
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NS_IMETHODIMP
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nsHTMLAppletElement::GetScriptObject(nsIScriptContext* aContext,
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void** aScriptObject)
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{
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nsresult rv = NS_OK;
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NS_WITH_SERVICE(nsIJVMManager, jvm, nsIJVMManager::GetCID(), &rv);
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if (NS_SUCCEEDED(rv)) {
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// nsresult rv = NS_OK;
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if (!mReflectedApplet) {
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// 0. Make sure the presentation is up-to-date
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if (mInner.mDocument) {
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mInner.mDocument->FlushPendingNotifications();
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}
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// 1. get the script object corresponding to the <APPLET> element itself.
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JSObject* elementObject = nsnull;
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rv = mInner.GetScriptObject(aContext, (void**)&elementObject);
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if (NS_OK != rv)
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return rv;
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// 2. get the plugin instance corresponding to this element.
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nsIPresShell* shell = nsnull;
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if (mInner.mDocument)
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shell = mInner.mDocument->GetShellAt(0);
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nsIFrame* frame = nsnull;
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if (shell) {
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shell->GetPrimaryFrameFor(mInner.mContent, &frame);
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NS_RELEASE(shell);
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}
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if(frame != nsnull)
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{
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nsIAtom* frameType = nsnull;
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frame->GetFrameType(&frameType);
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if(nsLayoutAtoms::objectFrame != frameType)
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{
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*aScriptObject = elementObject;
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return rv;
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}
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}
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// 3. get the Java object corresponding to this applet, and reflect it into
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// JavaScript using the LiveConnect manager.
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JSContext* context = (JSContext*)aContext->GetNativeContext();
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JSObject* wrappedAppletObject = nsnull;
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nsIPluginInstance* pluginInstance = nsnull;
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rv = NS_GetObjectFramePluginInstance(frame, pluginInstance);
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if ((rv == NS_OK) && (nsnull != pluginInstance)) {
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nsIJVMPluginInstance* javaPluginInstance = nsnull;
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if (pluginInstance->QueryInterface(NS_GET_IID(nsIJVMPluginInstance), (void**)&javaPluginInstance) == NS_OK) {
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jobject appletObject = nsnull;
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rv = javaPluginInstance->GetJavaObject(&appletObject);
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if (NS_OK == rv) {
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nsILiveConnectManager* manager = NULL;
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rv = nsServiceManager::GetService(nsIJVMManager::GetCID(),
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NS_GET_IID(nsILiveConnectManager),
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(nsISupports **)&manager);
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if (rv == NS_OK) {
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rv = manager->WrapJavaObject(context, appletObject, &wrappedAppletObject);
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nsServiceManager::ReleaseService(nsIJVMManager::GetCID(), manager);
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}
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}
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NS_RELEASE(javaPluginInstance);
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}
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NS_RELEASE(pluginInstance);
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}
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// 4. set the __proto__ field of the applet object to be the element script object.
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if (nsnull != wrappedAppletObject) {
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JS_SetPrototype(context, wrappedAppletObject, elementObject);
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mInner.SetScriptObject(wrappedAppletObject);
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mReflectedApplet = PR_TRUE;
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}
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*aScriptObject = wrappedAppletObject;
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} else {
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rv = mInner.GetScriptObject(aContext, aScriptObject);
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}
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return rv;
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}
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else
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return mInner.GetScriptObject(aContext, aScriptObject);
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}
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// TODO: if this method ever gets called, it will destroy the prototype type chain.
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NS_IMETHODIMP
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nsHTMLAppletElement::SetScriptObject(void *aScriptObject)
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{
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return mInner.SetScriptObject(aScriptObject);
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}
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NS_IMETHODIMP
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nsHTMLAppletElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
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{
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return mInner.SizeOf(aSizer, aResult, sizeof(*this));
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}
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