зеркало из https://github.com/mozilla/pjs.git
523 строки
20 KiB
C++
523 строки
20 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>
|
|
* Allan Beaufour <abeaufour@novell.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 ***** */
|
|
|
|
#ifndef nsXFormsUtils_h_
|
|
#define nsXFormsUtils_h_
|
|
|
|
#include "prtypes.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsCOMArray.h"
|
|
#include "nsIDOMNode.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIDOMXPathResult.h"
|
|
#include "nsIModelElementPrivate.h"
|
|
#include "nsIScriptError.h"
|
|
#include "nsVoidArray.h"
|
|
#include "nsIDOMWindowInternal.h"
|
|
|
|
class nsIDOMElement;
|
|
class nsIXFormsModelElement;
|
|
class nsIURI;
|
|
class nsString;
|
|
class nsIMutableArray;
|
|
class nsIDOMEvent;
|
|
|
|
#define NS_NAMESPACE_XFORMS "http://www.w3.org/2002/xforms"
|
|
#define NS_NAMESPACE_XHTML "http://www.w3.org/1999/xhtml"
|
|
#define NS_NAMESPACE_XML_SCHEMA "http://www.w3.org/2001/XMLSchema"
|
|
#define NS_NAMESPACE_XML_SCHEMA_INSTANCE "http://www.w3.org/2001/XMLSchema-instance"
|
|
#define NS_NAMESPACE_MOZ_XFORMS_TYPE "http://www.mozilla.org/projects/xforms/2005/type"
|
|
#define NS_NAMESPACE_SOAP_ENVELOPE "http://schemas.xmlsoap.org/soap/envelope/"
|
|
#define NS_NAMESPACE_MOZ_XFORMS_LAZY "http://www.mozilla.org/projects/xforms/2005/lazy"
|
|
|
|
/**
|
|
* Error codes
|
|
*/
|
|
|
|
#define NS_OK_XFORMS_NOREFRESH \
|
|
NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_GENERAL, 1)
|
|
|
|
/**
|
|
* XForms event types
|
|
*
|
|
* @see http://www.w3.org/TR/xforms/slice4.html#rpm-events
|
|
*
|
|
* @note nsXFormsModelElement::SetSingleState() assumes a specific order of
|
|
* the events from eEvent_Valid to eEvent_Disabled.
|
|
*/
|
|
|
|
enum nsXFormsEvent {
|
|
eEvent_ModelConstruct,
|
|
eEvent_ModelConstructDone,
|
|
eEvent_Ready,
|
|
eEvent_ModelDestruct,
|
|
eEvent_Previous,
|
|
eEvent_Next,
|
|
eEvent_Focus,
|
|
eEvent_Help,
|
|
eEvent_Hint,
|
|
eEvent_Rebuild,
|
|
eEvent_Refresh,
|
|
eEvent_Revalidate,
|
|
eEvent_Recalculate,
|
|
eEvent_Reset,
|
|
eEvent_Submit,
|
|
eEvent_DOMActivate,
|
|
eEvent_ValueChanged,
|
|
eEvent_Select,
|
|
eEvent_Deselect,
|
|
eEvent_ScrollFirst,
|
|
eEvent_ScrollLast,
|
|
eEvent_Insert,
|
|
eEvent_Delete,
|
|
eEvent_Valid,
|
|
eEvent_Invalid,
|
|
eEvent_DOMFocusIn,
|
|
eEvent_DOMFocusOut,
|
|
eEvent_Readonly,
|
|
eEvent_Readwrite,
|
|
eEvent_Required,
|
|
eEvent_Optional,
|
|
eEvent_Enabled,
|
|
eEvent_Disabled,
|
|
eEvent_InRange,
|
|
eEvent_OutOfRange,
|
|
eEvent_SubmitDone,
|
|
eEvent_SubmitError,
|
|
eEvent_BindingException,
|
|
eEvent_LinkException,
|
|
eEvent_LinkError,
|
|
eEvent_ComputeException,
|
|
eEvent_MozHintOff
|
|
};
|
|
|
|
struct EventData
|
|
{
|
|
const char *name;
|
|
PRBool canCancel;
|
|
PRBool canBubble;
|
|
};
|
|
|
|
extern const EventData sXFormsEventsEntries[42];
|
|
|
|
/**
|
|
* This class has static helper methods that don't fit into a specific place
|
|
* in the class hierarchy.
|
|
*/
|
|
class nsXFormsUtils
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Possible values for any |aElementFlags| parameters. These may be
|
|
* bitwise OR'd together.
|
|
*/
|
|
enum {
|
|
/**
|
|
* The element has a "model" attribute.
|
|
*/
|
|
ELEMENT_WITH_MODEL_ATTR = 1 << 0
|
|
};
|
|
|
|
/**
|
|
* Initialize nsXFormsUtils.
|
|
*/
|
|
static NS_HIDDEN_(nsresult)
|
|
Init();
|
|
|
|
/**
|
|
* Locate the model that is a parent of |aBindElement|. This method walks
|
|
* up the content tree looking for the containing model.
|
|
*
|
|
* @return Whether it's a reference to an outermost bind
|
|
*/
|
|
static NS_HIDDEN_(PRBool)
|
|
GetParentModel(nsIDOMElement *aBindElement,
|
|
nsIModelElementPrivate **aModel);
|
|
|
|
/**
|
|
* Find the evaluation context for an element.
|
|
*
|
|
* That is, the model it is bound to (|aModel|), and if applicable the
|
|
* \<bind\> element that it uses (|aBindElement| and the context node
|
|
* (|aContextNode|).
|
|
*
|
|
* @param aElement The element
|
|
* @param aElementFlags Flags describing characteristics of aElement
|
|
* @param aModel The \<model\> for the element
|
|
* @param aBindElement The \<bind\> the element is bound to (if any)
|
|
* @param aOuterBind Whether the \<bind\> is an outermost bind
|
|
* @param aContextNode The context node for the element
|
|
* @param aContextPosition The context position for the element
|
|
* @param aContextSize The context size for the element
|
|
*/
|
|
static NS_HIDDEN_(nsresult)
|
|
GetNodeContext(nsIDOMElement *aElement,
|
|
PRUint32 aElementFlags,
|
|
nsIModelElementPrivate **aModel,
|
|
nsIDOMElement **aBindElement,
|
|
PRBool *aOuterBind,
|
|
nsIDOMNode **aContextNode,
|
|
PRInt32 *aContextPosition = nsnull,
|
|
PRInt32 *aContextSize = nsnull);
|
|
|
|
/**
|
|
* Locate the model for an element.
|
|
*
|
|
* @note Actually it is just a shortcut for GetNodeContext().
|
|
*
|
|
* @param aElement The element
|
|
* @param aElementFlags Flags describing characteristics of aElement
|
|
* @return The model
|
|
*/
|
|
static NS_HIDDEN_(already_AddRefed<nsIModelElementPrivate>)
|
|
GetModel(nsIDOMElement *aElement,
|
|
PRUint32 aElementFlags = ELEMENT_WITH_MODEL_ATTR);
|
|
|
|
/**
|
|
* Evaluate a 'bind' or |aBindingAttr| attribute on |aElement|.
|
|
* |aResultType| is used as the desired result type for the XPath evaluation.
|
|
*
|
|
* The model element (if applicable) is located as part of this evaluation,
|
|
* and returned (addrefed) in |aModel|
|
|
*
|
|
* The return value is an XPathResult as returned from
|
|
* nsIXFormsXPathEvaluator::Evaluate().
|
|
*/
|
|
static NS_HIDDEN_(nsresult)
|
|
EvaluateNodeBinding(nsIDOMElement *aElement,
|
|
PRUint32 aElementFlags,
|
|
const nsString &aBindingAttr,
|
|
const nsString &aDefaultRef,
|
|
PRUint16 aResultType,
|
|
nsIModelElementPrivate **aModel,
|
|
nsIDOMXPathResult **aResult,
|
|
PRBool *aUsesModelBind,
|
|
nsCOMArray<nsIDOMNode> *aDeps = nsnull,
|
|
nsStringArray *aIndexesUsed = nsnull);
|
|
|
|
/**
|
|
* Convenience method for doing XPath evaluations. This gets a
|
|
* nsIXFormsXPathEvaluator from |aContextNode|'s ownerDocument, and calls
|
|
* nsIXFormsXPathEvaluator::Evalute using the given expression, context node,
|
|
* namespace resolver, and result type.
|
|
*/
|
|
static NS_HIDDEN_(already_AddRefed<nsIDOMXPathResult>)
|
|
EvaluateXPath(const nsAString &aExpression,
|
|
nsIDOMNode *aContextNode,
|
|
nsIDOMNode *aResolverNode,
|
|
PRUint16 aResultType,
|
|
PRInt32 aContextPosition = 1,
|
|
PRInt32 aContextSize = 1,
|
|
nsCOMArray<nsIDOMNode> *aSet = nsnull,
|
|
nsStringArray *aIndexesUsed = nsnull);
|
|
|
|
/**
|
|
* Given a node in the instance data, get its string value according
|
|
* to section 8.1.1 of the XForms specification.
|
|
*/
|
|
static NS_HIDDEN_(void) GetNodeValue(nsIDOMNode *aDataNode,
|
|
nsAString &aNodeValue);
|
|
|
|
/**
|
|
* Given a node in the instance data and a string, store the value according
|
|
* to section 10.1.9 of the XForms specification.
|
|
*/
|
|
static NS_HIDDEN_(void) SetNodeValue(nsIDOMNode *aDataNode,
|
|
const nsString &aNodeValue);
|
|
|
|
/**
|
|
* Convenience method for doing XPath evaluations to get bound node
|
|
* for an element. Also returns the associated model if aModel != null.
|
|
* Returns PR_TRUE if the evaluation succeeds.
|
|
*/
|
|
static NS_HIDDEN_(PRBool)
|
|
GetSingleNodeBinding(nsIDOMElement* aElement, nsIDOMNode** aNode,
|
|
nsIModelElementPrivate** aModel);
|
|
|
|
/**
|
|
* Convenience method for doing XPath evaluations to get string value
|
|
* for an element.
|
|
* Returns PR_TRUE if the evaluation succeeds.
|
|
*/
|
|
static NS_HIDDEN_(PRBool)
|
|
GetSingleNodeBindingValue(nsIDOMElement* aElement, nsString& aValue);
|
|
|
|
/**
|
|
* Convenience method for doing XPath evaluations to set string value
|
|
* for an element.
|
|
* Returns PR_TRUE if the evaluation succeeds.
|
|
*/
|
|
static NS_HIDDEN_(PRBool)
|
|
SetSingleNodeBindingValue(nsIDOMElement *aElement, const nsAString &aValue,
|
|
PRBool *aChanged);
|
|
/**
|
|
* Dispatch an XForms event. aDefaultActionEnabled is returned indicating
|
|
* if the default action of the dispatched event was enabled.
|
|
*/
|
|
static NS_HIDDEN_(nsresult)
|
|
DispatchEvent(nsIDOMNode* aTarget, nsXFormsEvent aEvent,
|
|
PRBool *aDefaultActionEnabled = nsnull);
|
|
|
|
/**
|
|
* Sets aEvent trusted if aRelatedNode is in chrome.
|
|
* When dispatching events in chrome, they should be set trusted
|
|
* because by default event listeners in chrome handle only trusted
|
|
* events.
|
|
* Should be called before any event dispatching in XForms.
|
|
*/
|
|
static NS_HIDDEN_(nsresult)
|
|
SetEventTrusted(nsIDOMEvent* aEvent, nsIDOMNode* aRelatedNode);
|
|
|
|
/**
|
|
* Returns PR_TRUE unless aTarget is in chrome and aEvent is not trusted.
|
|
* This should be used always before handling events. Otherwise if XForms
|
|
* is used in chrome, it may try to handle events that can be synthesized
|
|
* by untrusted content. I.e. content documents may create events using
|
|
* document.createEvent() and then fire them using target.dispatchEvent();
|
|
*/
|
|
static NS_HIDDEN_(PRBool)
|
|
EventHandlingAllowed(nsIDOMEvent* aEvent, nsIDOMNode* aTarget);
|
|
|
|
/**
|
|
* Returns PR_TRUE, if aEvent is an XForms event, and sets the values
|
|
* of aCancelable and aBubbles parameters according to the event type.
|
|
*/
|
|
static NS_HIDDEN_(PRBool)
|
|
IsXFormsEvent(const nsAString& aEvent,
|
|
PRBool& aCancelable,
|
|
PRBool& aBubbles);
|
|
|
|
/**
|
|
* Checks if aEvent is a predefined event and sets the values
|
|
* of aCancelable and aBubbles parameters according to the event type.
|
|
*/
|
|
static NS_HIDDEN_(void)
|
|
GetEventDefaults(const nsAString& aEvent,
|
|
PRBool& aCancelable,
|
|
PRBool& aBubbles);
|
|
|
|
/**
|
|
* Clone the set of IIDs in |aIIDList| into |aOutArray|.
|
|
* |aOutCount| is set to |aIIDCount|.
|
|
*/
|
|
static NS_HIDDEN_(nsresult) CloneScriptingInterfaces(const nsIID *aIIDList,
|
|
unsigned int aIIDCount,
|
|
PRUint32 *aOutCount,
|
|
nsIID ***aOutArray);
|
|
|
|
/**
|
|
* Returns the context for the element, if set by a parent node.
|
|
*
|
|
* Controls inheriting from nsIXFormsContextControl sets the context for its children.
|
|
*
|
|
* @param aElement The document element of the caller
|
|
* @param aModel The model for |aElement| (if (!*aModel), it is set)
|
|
* @param aContextNode The resulting context node
|
|
* @param aContextPosition The resulting context position
|
|
* @param aContextSize The resulting context size
|
|
*/
|
|
static NS_HIDDEN_(nsresult) FindParentContext(nsIDOMElement *aElement,
|
|
nsIModelElementPrivate **aModel,
|
|
nsIDOMNode **aContextNode,
|
|
PRInt32 *aContextPosition,
|
|
PRInt32 *aContextSize);
|
|
|
|
/**
|
|
* @return true if aTestURI has the same origin as aBaseDocument
|
|
*/
|
|
static NS_HIDDEN_(PRBool) CheckSameOrigin(nsIDocument *aBaseDocument,
|
|
nsIURI *aTestURI);
|
|
|
|
/**
|
|
* @return true if aNode is element, its namespace URI is
|
|
* "http://www.w3.org/2002/xforms" and its name is aName.
|
|
*/
|
|
static NS_HIDDEN_(PRBool) IsXFormsElement(nsIDOMNode* aNode,
|
|
const nsAString& aName);
|
|
/**
|
|
* Returns true if the given element is an XForms label.
|
|
*/
|
|
static NS_HIDDEN_(PRBool) IsLabelElement(nsIDOMNode *aElement);
|
|
|
|
/**
|
|
* Tries to focus a form control and returns true if succeeds.
|
|
*/
|
|
static NS_HIDDEN_(PRBool) FocusControl(nsIDOMElement *aElement);
|
|
|
|
/**
|
|
* Sorts the array and removes duplicate entries
|
|
*/
|
|
static NS_HIDDEN_(void) MakeUniqueAndSort(nsCOMArray<nsIDOMNode> *aArray);
|
|
|
|
/**
|
|
* Returns the <xf:instance> for a given instance data node.
|
|
*/
|
|
static NS_HIDDEN_(nsresult) GetInstanceNodeForData(nsIDOMNode *aInstanceDataNode,
|
|
nsIDOMNode **aInstanceNode);
|
|
|
|
/**
|
|
* Returns the type bound to the given node.
|
|
*
|
|
* @param aInstanceData An instance data node or attribute on an instance
|
|
* data node from which to retrieve type.
|
|
* @param aType On return, type of given node.
|
|
* @param aNSUri On return, namespace URI of aType.
|
|
*/
|
|
static NS_HIDDEN_(nsresult) ParseTypeFromNode(nsIDOMNode *aInstanceData,
|
|
nsAString &aType,
|
|
nsAString &aNSUri);
|
|
|
|
/**
|
|
* Outputs to the JavaScript console.
|
|
*
|
|
* @param aMessageName Name of string to output, which is loaded from
|
|
xforms.properties
|
|
* @param aParams Optional parameters for the loaded string
|
|
* @param aParamLength Amount of params in aParams
|
|
* @param aElement If set, is used to determine and output the
|
|
location of the file the XForm is located in
|
|
* @param aContext If set, the node is used to output what element
|
|
caused the error
|
|
* @param aErrorType Type of error in form of an nsIScriptError flag
|
|
*/
|
|
static NS_HIDDEN_(void) ReportError(const nsString &aMessageName,
|
|
const PRUnichar **aParams,
|
|
PRUint32 aParamLength,
|
|
nsIDOMNode *aElement,
|
|
nsIDOMNode *aContext,
|
|
PRUint32 aErrorFlag = nsIScriptError::errorFlag);
|
|
|
|
/**
|
|
* Simple version of ReportError(), used when reporting without message
|
|
* arguments and file location and node is taken from same element (or
|
|
* nsnull).
|
|
*
|
|
* @param aMessageName Name of string
|
|
* @param aElement Element to use for location and context
|
|
* @param aErrorType Type of error in form of an nsIScriptError flag
|
|
*/
|
|
static NS_HIDDEN_(void) ReportError(const nsString &aMessageName,
|
|
nsIDOMNode *aElement = nsnull,
|
|
PRUint32 aErrorFlag = nsIScriptError::errorFlag)
|
|
{
|
|
nsXFormsUtils::ReportError(aMessageName, nsnull, 0, aElement, aElement, aErrorFlag);
|
|
}
|
|
|
|
/**
|
|
* Returns whether the aDocument is ready to bind data (all instance documents
|
|
* loaded).
|
|
*
|
|
* @param aDocument Document to check
|
|
*/
|
|
static NS_HIDDEN_(PRBool) IsDocumentReadyForBind(nsIDOMDocument *aDocument);
|
|
|
|
/**
|
|
* Retrieve an element by id, handling (cloned) elements inside repeats.
|
|
*
|
|
* @param aDoc The document to get element from
|
|
* @param aId The id of the element
|
|
* @param aOnlyXForms Only search for XForms elements
|
|
* @param aCaller The caller (or rather the caller's DOM element),
|
|
ignored if nsnull
|
|
* @param aElement The element (or nsnull if not found)
|
|
*/
|
|
static NS_HIDDEN_(nsresult) GetElementById(nsIDOMDocument *aDoc,
|
|
const nsAString &aId,
|
|
const PRBool aOnlyXForms,
|
|
nsIDOMElement *aCaller,
|
|
nsIDOMElement **aElement);
|
|
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @param aElement Element the exception occured at
|
|
* @return Whether handling was successful
|
|
*/
|
|
static PRBool HandleBindingException(nsIDOMElement *aElement);
|
|
|
|
/**
|
|
* Returns whether the given NamedNodeMaps of Entities are equal
|
|
*
|
|
*/
|
|
static NS_HIDDEN_(PRBool) AreEntitiesEqual(nsIDOMNamedNodeMap *aEntities1,
|
|
nsIDOMNamedNodeMap *aEntities2);
|
|
|
|
/**
|
|
* Returns whether the given NamedNodeMaps of Notations are equal
|
|
*
|
|
*/
|
|
static NS_HIDDEN_(PRBool) AreNotationsEqual(nsIDOMNamedNodeMap *aNotations1,
|
|
nsIDOMNamedNodeMap *aNotations2);
|
|
|
|
/**
|
|
* Returns whether the given nodes are equal as described in the isEqualNode
|
|
* function defined in the DOM Level 3 Core spec.
|
|
* http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/DOM3-Core.html#core-Node3-isEqualNode
|
|
*
|
|
* XXX: this is just temporary until isEqualNode is implemented in Mozilla
|
|
* (https://bugzilla.mozilla.org/show_bug.cgi?id=159167)
|
|
*
|
|
* @param aFirstNode The first node to compare
|
|
* @param aSecondNode The second node to compare
|
|
* @param aAlreadyNormalized Whether the two nodes and their children, etc.
|
|
* have already been normalized to allow for
|
|
* more accurate child node comparisons, as
|
|
* recommended in the DOM Level 3 Core spec.
|
|
*/
|
|
static NS_HIDDEN_(PRBool) AreNodesEqual(nsIDOMNode *aFirstNode,
|
|
nsIDOMNode *aSecondNode,
|
|
PRBool aAlreadyNormalized = PR_FALSE);
|
|
|
|
/**
|
|
* Retrieve the window object from the given document
|
|
*
|
|
* @param aDoc The document to get window object from
|
|
* @param aWindow The found window object
|
|
*/
|
|
static NS_HIDDEN_(nsresult) GetWindowFromDocument(nsIDOMDocument *aDoc,
|
|
nsIDOMWindowInternal **aWindow);
|
|
};
|
|
|
|
#endif
|