зеркало из https://github.com/mozilla/pjs.git
370 строки
12 KiB
C++
370 строки
12 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
|
|
* Novell, Inc.
|
|
* Portions created by the Initial Developer are Copyright (C) 2004
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Allan Beaufour <abeaufour@novell.com>
|
|
* Olli Pettay <Olli.Pettay@helsinki.fi>
|
|
*
|
|
* 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 ***** */
|
|
|
|
#ifndef nsXFormsControlStub_h_
|
|
#define nsXFormsControlStub_h_
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "nsString.h"
|
|
|
|
#include "nsIDOMElement.h"
|
|
#include "nsIDOMNode.h"
|
|
#include "nsIXTFElement.h"
|
|
#include "nsXFormsAtoms.h"
|
|
#include "nsIDOMEventListener.h"
|
|
|
|
#include "nsIModelElementPrivate.h"
|
|
#include "nsIXFormsControl.h"
|
|
#include "nsIXFormsRepeatElement.h"
|
|
#include "nsXFormsStubElement.h"
|
|
#include "nsXFormsUtils.h"
|
|
#include "nsIXTFXMLVisualWrapper.h"
|
|
#include "nsIXTFBindableElementWrapper.h"
|
|
#include "nsIXFormsControlBase.h"
|
|
|
|
class nsIDOMEvent;
|
|
class nsIDOMXPathResult;
|
|
class nsIXTFXMLVisualWrapper;
|
|
|
|
/**
|
|
* Common stub for all XForms controls that inherit from nsIXFormsControl and
|
|
* is bound to an instance node.
|
|
*/
|
|
class nsXFormsControlStubBase : public nsIXFormsControl
|
|
{
|
|
public:
|
|
|
|
/** The standard notification flags set on nsIXTFElement */
|
|
const PRUint32 kStandardNotificationMask;
|
|
|
|
/**
|
|
* The element flags for the controls passed to
|
|
* nsXFormsUtils:EvaluateNodeBinding()
|
|
*/
|
|
const PRUint32 kElementFlags;
|
|
|
|
// nsIXFormsControl
|
|
NS_IMETHOD GetBoundNode(nsIDOMNode **aBoundNode);
|
|
NS_IMETHOD GetDependencies(nsCOMArray<nsIDOMNode> **aDependencies);
|
|
NS_IMETHOD GetElement(nsIDOMElement **aElement);
|
|
NS_IMETHOD ResetBoundNode(const nsString &aBindAttribute,
|
|
PRUint16 aResultType,
|
|
nsIDOMXPathResult **aResult = nsnull);
|
|
NS_IMETHOD Bind();
|
|
NS_IMETHOD TryFocus(PRBool* aOK);
|
|
NS_IMETHOD IsEventTarget(PRBool *aOK);
|
|
|
|
nsresult Create(nsIXTFElementWrapper *aWrapper);
|
|
// for nsIXTFElement
|
|
nsresult HandleDefault(nsIDOMEvent *aEvent,
|
|
PRBool *aHandled);
|
|
nsresult OnDestroyed();
|
|
nsresult DocumentChanged(nsIDOMDocument *aNewDocument);
|
|
nsresult ParentChanged(nsIDOMElement *aNewParent);
|
|
nsresult WillSetAttribute(nsIAtom *aName, const nsAString &aValue);
|
|
nsresult AttributeSet(nsIAtom *aName, const nsAString &aValue);
|
|
nsresult WillRemoveAttribute(nsIAtom *aName);
|
|
nsresult AttributeRemoved(nsIAtom *aName);
|
|
|
|
/**
|
|
* This function manages the mBindAttrsCount value. mBindAttrsCount will
|
|
* be incremented if a single node binding attribute is specified that isn't
|
|
* currently on the control AND aValue isn't empty. Otherwise, if the control
|
|
* already contains this attribute with a non-empty value and aValue is empty,
|
|
* then mBindAttrsCount is decremented.
|
|
*
|
|
* aName - Atom of the single node binding attribute ('bind', 'ref', etc.).
|
|
* Using an atom to make it a tad harder to misuse by passing in
|
|
* any old string, for instance. Since different controls may have
|
|
* different binding attrs, we do NO validation on the attr. We
|
|
* assume that the caller is smart enough to only send us a
|
|
* binding attr atom.
|
|
* aValue - The string value that the SNB attribute is being set to.
|
|
*
|
|
*/
|
|
void AddRemoveSNBAttr(nsIAtom *aName, const nsAString &aValue);
|
|
|
|
// nsIXFormsContextControl
|
|
NS_DECL_NSIXFORMSCONTEXTCONTROL
|
|
|
|
#ifdef DEBUG_smaug
|
|
virtual const char* Name() { return "[undefined]"; }
|
|
#endif
|
|
|
|
|
|
/** Constructor */
|
|
nsXFormsControlStubBase() :
|
|
kStandardNotificationMask(nsIXTFElement::NOTIFY_WILL_SET_ATTRIBUTE |
|
|
nsIXTFElement::NOTIFY_ATTRIBUTE_SET |
|
|
nsIXTFElement::NOTIFY_WILL_REMOVE_ATTRIBUTE |
|
|
nsIXTFElement::NOTIFY_ATTRIBUTE_REMOVED |
|
|
nsIXTFElement::NOTIFY_DOCUMENT_CHANGED |
|
|
nsIXTFElement::NOTIFY_PARENT_CHANGED |
|
|
nsIXTFElement::NOTIFY_HANDLE_DEFAULT),
|
|
kElementFlags(nsXFormsUtils::ELEMENT_WITH_MODEL_ATTR),
|
|
mHasParent(PR_FALSE),
|
|
mPreventLoop(PR_FALSE),
|
|
mBindAttrsCount(0)
|
|
{};
|
|
|
|
protected:
|
|
/** The nsIXTFXMLVisualWrapper */
|
|
nsIDOMElement* mElement;
|
|
|
|
/** The node that the control is bound to. */
|
|
nsCOMPtr<nsIDOMNode> mBoundNode;
|
|
|
|
/** Array of nsIDOMNodes that the control depends on. */
|
|
nsCOMArray<nsIDOMNode> mDependencies;
|
|
|
|
/** The model for the control */
|
|
nsCOMPtr<nsIModelElementPrivate> mModel;
|
|
|
|
/** This event listener is used to create xforms-hint and xforms-help events. */
|
|
nsCOMPtr<nsIDOMEventListener> mEventListener;
|
|
|
|
/** State that tells whether control has a parent or not */
|
|
PRBool mHasParent;
|
|
|
|
/** State to prevent infinite loop when generating and handling xforms-next
|
|
* and xforms-previous events
|
|
*/
|
|
PRBool mPreventLoop;
|
|
|
|
/**
|
|
* Array of repeat-elements of which the control uses repeat-index.
|
|
*/
|
|
nsCOMArray<nsIXFormsRepeatElement> mIndexesUsed;
|
|
|
|
/**
|
|
* Used to keep track of whether this control has any single node binding
|
|
* attributes.
|
|
*/
|
|
PRInt32 mBindAttrsCount;
|
|
|
|
/** Returns the read only state of the control (ie. mBoundNode) */
|
|
PRBool GetReadOnlyState();
|
|
|
|
/** Returns the relevant state of the control */
|
|
PRBool GetRelevantState();
|
|
|
|
/**
|
|
* Processes the node binding of a control, get the current MDG (mMDG) and
|
|
* binds the control to its model.
|
|
*/
|
|
nsresult
|
|
ProcessNodeBinding(const nsString &aBindingAttr,
|
|
PRUint16 aResultType,
|
|
nsIDOMXPathResult **aResult,
|
|
nsIModelElementPrivate **aModel = nsnull);
|
|
|
|
/**
|
|
* Reset (and reinitialize) the event listener, which is used to create
|
|
* xforms-hint and xforms-help events.
|
|
*/
|
|
void ResetHelpAndHint(PRBool aInitialize);
|
|
|
|
/**
|
|
* Removes all of the attributes that may have been added to the control due
|
|
* to binding with an instance node.
|
|
*/
|
|
void ResetProperties();
|
|
|
|
/**
|
|
* Causes Bind() and Refresh() to be called if aName is the atom of a
|
|
* single node binding attribute for this control. Called by AttributeSet
|
|
* and AttributeRemoved.
|
|
*/
|
|
void MaybeBindAndRefresh(nsIAtom *aName);
|
|
|
|
/**
|
|
* Removes this control from its model's list of controls if a single node
|
|
* binding attribute is removed. Called by WillSetAttribute and
|
|
* WillRemoveAttribute.
|
|
*
|
|
* @param aName - atom of the attribute being changed
|
|
* @param aValue - value that the attribute is being changed to.
|
|
*/
|
|
void MaybeRemoveFromModel(nsIAtom *aName, const nsAString &aValue);
|
|
|
|
/** Removes the index change event listeners */
|
|
void RemoveIndexListeners();
|
|
|
|
/**
|
|
* Shows an error dialog for the user the first time an
|
|
* xforms-binding-exception event is received by the control.
|
|
*
|
|
* The dialog can be disabled via the |xforms.disablePopup| preference.
|
|
*
|
|
* @return Whether handling was successful
|
|
*/
|
|
PRBool HandleBindingException();
|
|
};
|
|
|
|
|
|
/**
|
|
* nsXFormsControlStub inherits from nsXFormsXMLVisualStub
|
|
*/
|
|
class nsXFormsControlStub : public nsXFormsControlStubBase,
|
|
public nsXFormsXMLVisualStub
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
// nsIXTFXMLVisual overrides
|
|
/** This sets the notification mask and initializes mElement */
|
|
NS_IMETHOD OnCreated(nsIXTFXMLVisualWrapper *aWrapper)
|
|
{
|
|
nsresult rv = nsXFormsXMLVisualStub::OnCreated(aWrapper);
|
|
return NS_SUCCEEDED(rv) ? nsXFormsControlStubBase::Create(aWrapper) : rv;
|
|
}
|
|
|
|
// nsIXTFElement overrides
|
|
NS_IMETHOD HandleDefault(nsIDOMEvent *aEvent,
|
|
PRBool *aHandled)
|
|
{
|
|
return nsXFormsControlStubBase::HandleDefault(aEvent, aHandled);
|
|
}
|
|
|
|
NS_IMETHOD OnDestroyed() {
|
|
return nsXFormsControlStubBase::OnDestroyed();
|
|
}
|
|
|
|
NS_IMETHOD DocumentChanged(nsIDOMDocument *aNewDocument)
|
|
{
|
|
return nsXFormsControlStubBase::DocumentChanged(aNewDocument);
|
|
}
|
|
|
|
NS_IMETHOD ParentChanged(nsIDOMElement *aNewParent)
|
|
{
|
|
return nsXFormsControlStubBase::ParentChanged(aNewParent);
|
|
}
|
|
|
|
NS_IMETHOD WillSetAttribute(nsIAtom *aName, const nsAString &aValue)
|
|
{
|
|
return nsXFormsControlStubBase::WillSetAttribute(aName, aValue);
|
|
}
|
|
|
|
NS_IMETHOD AttributeSet(nsIAtom *aName, const nsAString &aValue)
|
|
{
|
|
return nsXFormsControlStubBase::AttributeSet(aName, aValue);
|
|
}
|
|
|
|
NS_IMETHOD WillRemoveAttribute(nsIAtom *aName)
|
|
{
|
|
return nsXFormsControlStubBase::WillRemoveAttribute(aName);
|
|
}
|
|
|
|
NS_IMETHOD AttributeRemoved(nsIAtom *aName)
|
|
{
|
|
return nsXFormsControlStubBase::AttributeRemoved(aName);
|
|
}
|
|
|
|
NS_IMETHOD Bind()
|
|
{
|
|
return nsXFormsControlStubBase::Bind();
|
|
}
|
|
|
|
/** Constructor */
|
|
nsXFormsControlStub() : nsXFormsControlStubBase() {};
|
|
};
|
|
|
|
|
|
/**
|
|
* nsXFormsBindableControlStub inherits from nsXFormsBindableStub
|
|
*/
|
|
class nsXFormsBindableControlStub : public nsXFormsControlStubBase,
|
|
public nsXFormsBindableStub
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
// nsIXTFBindableElement overrides
|
|
/** This sets the notification mask and initializes mElement */
|
|
NS_IMETHOD OnCreated(nsIXTFBindableElementWrapper *aWrapper)
|
|
{
|
|
nsresult rv = nsXFormsBindableStub::OnCreated(aWrapper);
|
|
return NS_SUCCEEDED(rv) ? nsXFormsControlStubBase::Create(aWrapper) : rv;
|
|
}
|
|
|
|
// nsIXTFElement overrides
|
|
NS_IMETHOD HandleDefault(nsIDOMEvent *aEvent,
|
|
PRBool *aHandled)
|
|
{
|
|
return nsXFormsControlStubBase::HandleDefault(aEvent, aHandled);
|
|
}
|
|
|
|
NS_IMETHOD OnDestroyed() {
|
|
return nsXFormsControlStubBase::OnDestroyed();
|
|
}
|
|
|
|
NS_IMETHOD DocumentChanged(nsIDOMDocument *aNewDocument)
|
|
{
|
|
return nsXFormsControlStubBase::DocumentChanged(aNewDocument);
|
|
}
|
|
|
|
NS_IMETHOD ParentChanged(nsIDOMElement *aNewParent)
|
|
{
|
|
return nsXFormsControlStubBase::ParentChanged(aNewParent);
|
|
}
|
|
|
|
NS_IMETHOD WillSetAttribute(nsIAtom *aName, const nsAString &aValue)
|
|
{
|
|
return nsXFormsControlStubBase::WillSetAttribute(aName, aValue);
|
|
}
|
|
|
|
NS_IMETHOD AttributeSet(nsIAtom *aName, const nsAString &aValue)
|
|
{
|
|
return nsXFormsControlStubBase::AttributeSet(aName, aValue);
|
|
}
|
|
|
|
NS_IMETHOD WillRemoveAttribute(nsIAtom *aName)
|
|
{
|
|
return nsXFormsControlStubBase::WillRemoveAttribute(aName);
|
|
}
|
|
|
|
NS_IMETHOD AttributeRemoved(nsIAtom *aName)
|
|
{
|
|
return nsXFormsControlStubBase::AttributeRemoved(aName);
|
|
}
|
|
|
|
/** Constructor */
|
|
nsXFormsBindableControlStub() : nsXFormsControlStubBase() {};
|
|
};
|
|
#endif
|