RetroZilla/extensions/xforms/nsXFormsStubElement.cpp
2015-10-20 23:03:22 -04:00

470 lines
11 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brian Ryner <bryner@brianryner.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsXFormsStubElement.h"
#include "nsIDOMElement.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOM3Node.h"
#include "nsMemory.h"
#include "nsXFormsUtils.h"
#include "nsXFormsAtoms.h"
#include "nsIXTFBindableElementWrapper.h"
static const nsIID sScriptingIIDs[] = {
NS_IDOMELEMENT_IID,
NS_IDOMEVENTTARGET_IID,
NS_IDOM3NODE_IID
};
// nsXFormsStubElement implementation
NS_IMPL_ISUPPORTS2(nsXFormsStubElement, nsIXTFElement, nsIXTFGenericElement)
NS_IMETHODIMP
nsXFormsStubElement::OnDestroyed()
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::GetElementType(PRUint32 *aElementType)
{
*aElementType = nsIXTFElement::ELEMENT_TYPE_GENERIC_ELEMENT;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::GetIsAttributeHandler(PRBool *aIsAttributeHandler)
{
*aIsAttributeHandler = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::GetScriptingInterfaces(PRUint32 *aCount, nsIID ***aArray)
{
return nsXFormsUtils::CloneScriptingInterfaces(sScriptingIIDs,
NS_ARRAY_LENGTH(sScriptingIIDs),
aCount, aArray);
}
NS_IMETHODIMP
nsXFormsStubElement::WillChangeDocument(nsIDOMDocument *aNewDocument)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::DocumentChanged(nsIDOMDocument *aNewDocument)
{
mHasDoc = aNewDocument != nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::WillChangeParent(nsIDOMElement *aNewParent)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::ParentChanged(nsIDOMElement *aNewParent)
{
mHasParent = aNewParent != nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::WillInsertChild(nsIDOMNode *aChild, PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::ChildInserted(nsIDOMNode *aChild, PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::WillAppendChild(nsIDOMNode *aChild)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::ChildAppended(nsIDOMNode *aChild)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::WillRemoveChild(PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::ChildRemoved(PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::WillSetAttribute(nsIAtom *aName,
const nsAString &aNewValue)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::AttributeSet(nsIAtom *aName, const nsAString &aNewValue)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::WillRemoveAttribute(nsIAtom *aName)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::AttributeRemoved(nsIAtom *aName)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::BeginAddingChildren()
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::DoneAddingChildren()
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::HandleDefault(nsIDOMEvent *aEvent, PRBool *aHandled)
{
*aHandled = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::OnCreated(nsIXTFGenericElementWrapper *aWrapper)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsStubElement::CloneState(nsIDOMElement *aElement)
{
return NS_OK;
}
nsRepeatState
nsXFormsStubElement::GetRepeatState()
{
return mRepeatState;
}
void
nsXFormsStubElement::SetRepeatState(nsRepeatState aState)
{
mRepeatState = aState;
return;
}
nsRepeatState
nsXFormsStubElement::UpdateRepeatState(nsIDOMNode *aParent)
{
// Walk up the parent chain looking to see if the this control is contained
// in an item. If it is and that item is contained in a itemset, then we
// know that this control was generated as a clone from the itemset's
// template. Similarly, we'll check to see if this control lives in a
// contextcontainer (meaning it was cloned from a repeat's template).
// Otherwise, if neither of these are the case but it lives under a repeat
// or an itemset, then this control must be part of a template. A template
// is the content of a repeat or itemset that gets cloned once for every
// node in the bound nodeset.
//
// If none of this applies, we'll return eType_NotApplicable to show that this
// control isn't bound to a repeating nodeset.
nsRepeatState repeatState = eType_NotApplicable;
if (!mHasDoc || !mHasParent) {
// If we don't have a document or a parent, none of these tests will work
// correctly so no sense doing them now. If either of these are false the
// repeat state for the object should already be eType_Unknown so just
// return that now.
return eType_Unknown;
}
nsCOMPtr<nsIDOMNode> parent = aParent;
PRBool childIsItem = PR_FALSE;
while (parent) {
if (nsXFormsUtils::IsXFormsElement(parent,
NS_LITERAL_STRING("contextcontainer"))) {
repeatState = eType_GeneratedContent;
break;
}
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("repeat"))) {
repeatState = eType_Template;
break;
}
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("itemset"))) {
if (childIsItem) {
repeatState = eType_GeneratedContent;
break;
}
repeatState = eType_Template;
break;
}
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("item"))) {
childIsItem = PR_TRUE;
} else {
nsCOMPtr<nsIDOMElement> parentEle(do_QueryInterface(parent));
if (!parentEle) {
// I don't know how this can possibly happen, but if it does I guess
// we should just ignore it and coninue on our way.
break;
}
// if this control is contained underneath an element that contains
// an xforms binding attribute that introduces an anonymous xf:repeat
// then the control is part of a template
PRBool repeatAttr = PR_FALSE;
parentEle->HasAttributeNS(NS_LITERAL_STRING(NS_NAMESPACE_XFORMS),
NS_LITERAL_STRING("repeat-bind"),
&repeatAttr);
if (repeatAttr) {
repeatState = eType_Template;
break;
}
parentEle->HasAttributeNS(NS_LITERAL_STRING(NS_NAMESPACE_XFORMS),
NS_LITERAL_STRING("repeat-nodeset"),
&repeatAttr);
if (repeatAttr) {
repeatState = eType_Template;
break;
}
}
nsCOMPtr<nsIDOMNode> tmp;
parent->GetParentNode(getter_AddRefs(tmp));
parent = tmp;
}
SetRepeatState(repeatState);
return repeatState;
}
nsresult
NS_NewXFormsStubElement(nsIXTFElement **aResult)
{
*aResult = new nsXFormsStubElement();
if (!*aResult)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*aResult);
return NS_OK;
}
// nsXFormsBindableStub implementation
NS_IMPL_ISUPPORTS2(nsXFormsBindableStub, nsIXTFElement, nsIXTFBindableElement)
NS_IMETHODIMP
nsXFormsBindableStub::OnDestroyed()
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::GetElementType(PRUint32 *aElementType)
{
*aElementType = nsIXTFElement::ELEMENT_TYPE_BINDABLE;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::GetIsAttributeHandler(PRBool *aIsAttributeHandler)
{
*aIsAttributeHandler = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::GetScriptingInterfaces(PRUint32 *aCount, nsIID ***aArray)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillChangeDocument(nsIDOMDocument *aNewDocument)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::DocumentChanged(nsIDOMDocument *aNewDocument)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillChangeParent(nsIDOMElement *aNewParent)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::ParentChanged(nsIDOMElement *aNewParent)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillInsertChild(nsIDOMNode *aChild, PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::ChildInserted(nsIDOMNode *aChild, PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillAppendChild(nsIDOMNode *aChild)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::ChildAppended(nsIDOMNode *aChild)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillRemoveChild(PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::ChildRemoved(PRUint32 aIndex)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillSetAttribute(nsIAtom *aName,
const nsAString &aNewValue)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::AttributeSet(nsIAtom *aName, const nsAString &aNewValue)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::WillRemoveAttribute(nsIAtom *aName)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::AttributeRemoved(nsIAtom *aName)
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::BeginAddingChildren()
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::DoneAddingChildren()
{
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::HandleDefault(nsIDOMEvent *aEvent, PRBool *aHandled)
{
*aHandled = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsBindableStub::OnCreated(nsIXTFBindableElementWrapper *aWrapper)
{
NS_ENSURE_ARG(aWrapper);
return aWrapper->SetClassAttributeName(nsXFormsAtoms::clazz);
}
NS_IMETHODIMP
nsXFormsBindableStub::CloneState(nsIDOMElement *aElement)
{
return NS_OK;
}
nsresult
NS_NewXFormsBindableStub(nsIXTFElement **aResult)
{
*aResult = new nsXFormsBindableStub();
if (!*aResult)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*aResult);
return NS_OK;
}