/usr/include/firefox/nsIScriptGlobalObject.h is in firefox-dev 11.0+build1-0ubuntu4.
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/* vim: set ts=2 sw=2 et tw=80: */
/* ***** 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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
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*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIScriptGlobalObject_h__
#define nsIScriptGlobalObject_h__
#include "nsISupports.h"
#include "nsEvent.h"
#include "nsIProgrammingLanguage.h"
class nsIScriptContext;
class nsIDOMDocument;
class nsIDOMEvent;
class nsIScriptGlobalObjectOwner;
class nsIArray;
class nsScriptErrorEvent;
class nsIScriptGlobalObject;
struct JSObject; // until we finally remove GetGlobalJSObject...
// Some helpers for working with integer "script type IDs", and specifically
// for working with arrays of such objects. For example, it is common for
// implementations supporting multiple script languages to keep each
// language's nsIScriptContext in an array indexed by the language ID.
// Implementation note: We always ignore nsIProgrammingLanguage::UNKNOWN and
// nsIProgrammingLanguage::CPLUSPLUS - this gives javascript slot 0. An
// attempted micro-optimization tried to avoid us going all the way to
// nsIProgrammingLanguage::MAX; however:
// * Someone is reportedly working on a PHP impl - that has value 9
// * nsGenericElement therefore allows 4 bits for the value.
// So there is no good reason for us to be more restrictive again...
#define NS_STID_FIRST nsIProgrammingLanguage::JAVASCRIPT
// like nsGenericElement, only 4 bits worth is valid...
#define NS_STID_LAST (nsIProgrammingLanguage::MAX > 0x000FU ? \
0x000FU : nsIProgrammingLanguage::MAX)
// Use to declare the array size
#define NS_STID_ARRAY_UBOUND (NS_STID_LAST-NS_STID_FIRST+1)
// Is a language ID valid?
#define NS_STID_VALID(langID) (langID >= NS_STID_FIRST && langID <= NS_STID_LAST)
// Return an index for a given ID.
#define NS_STID_INDEX(langID) (langID-NS_STID_FIRST)
// Create a 'for' loop iterating over all possible language IDs (*not* indexes)
#define NS_STID_FOR_ID(varName) \
for (varName=NS_STID_FIRST;varName<=NS_STID_LAST;varName++)
// Create a 'for' loop iterating over all indexes (when you don't need to know
// what language it is)
#define NS_STID_FOR_INDEX(varName) \
for (varName=0;varName<=NS_STID_INDEX(NS_STID_LAST);varName++)
// A helper function for nsIScriptGlobalObject implementations to use
// when handling a script error. Generally called by the global when a context
// notifies it of an error via nsIScriptGlobalObject::HandleScriptError.
// Returns true if HandleDOMEvent was actually called, in which case
// aStatus will be filled in with the status.
bool
NS_HandleScriptError(nsIScriptGlobalObject *aScriptGlobal,
nsScriptErrorEvent *aErrorEvent,
nsEventStatus *aStatus);
#define NS_ISCRIPTGLOBALOBJECT_IID \
{ 0x08f73284, 0x26e3, 0x4fa6, \
{ 0xbf, 0x89, 0x83, 0x26, 0xf9, 0x2a, 0x94, 0xb3 } }
/**
* The global object which keeps a script context for each supported script
* language. This often used to store per-window global state.
*/
class nsIScriptGlobalObject : public nsISupports
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISCRIPTGLOBALOBJECT_IID)
/**
* Ensure that the script global object is initialized for working with the
* specified script language ID. This will set up the nsIScriptContext
* and 'script global' for that language, allowing these to be fetched
* and manipulated.
* @return NS_OK if successful; error conditions include that the language
* has not been registered, as well as 'normal' errors, such as
* out-of-memory
*/
virtual nsresult EnsureScriptEnvironment(PRUint32 aLangID) = 0;
/**
* Get a script context (WITHOUT added reference) for the specified language.
*/
virtual nsIScriptContext *GetScriptContext(PRUint32 lang) = 0;
virtual JSObject* GetGlobalJSObject() = 0;
virtual nsIScriptContext *GetContext() {
return GetScriptContext(nsIProgrammingLanguage::JAVASCRIPT);
}
/**
* Set a new language context for this global. The native global for the
* context is created by the context's GetNativeGlobal() method.
*/
virtual nsresult SetScriptContext(PRUint32 lang, nsIScriptContext *aContext) = 0;
/**
* Called when the global script for a language is finalized, typically as
* part of its GC process. By the time this call is made, the
* nsIScriptContext for the language has probably already been removed.
* After this call, the passed object is dead - which should generally be the
* same object the global is using for a global for that language.
*/
virtual void OnFinalize(JSObject* aObject) = 0;
/**
* Called to enable/disable scripts.
*/
virtual void SetScriptsEnabled(bool aEnabled, bool aFireTimeouts) = 0;
/**
* Handle a script error. Generally called by a script context.
*/
virtual nsresult HandleScriptError(nsScriptErrorEvent *aErrorEvent,
nsEventStatus *aEventStatus) {
return NS_HandleScriptError(this, aErrorEvent, aEventStatus);
}
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIScriptGlobalObject,
NS_ISCRIPTGLOBALOBJECT_IID)
#endif
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