gecko-dev/layout/generic/nsIFrameDebug.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsIFrameDebug_h___
#define nsIFrameDebug_h___
#include "nslayout.h"
#include "nsISupports.h"
class nsIFrame;
class nsIPresContext;
// IID for the nsIFrameDebug interface {a6cf9069-15b3-11d2-932e-00805f8add32}
#define NS_IFRAMEDEBUG_IID \
{ 0xa6cf9069, 0x15b3, 0x11d2, \
{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
/**
* Debug related functions
*/
class nsIFrameDebug : public nsISupports {
public:
static const nsIID& GetIID() { static nsIID iid = NS_IFRAMEDEBUG_IID; return iid; }
NS_IMETHOD List(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent) const = 0;
/**
* Get a printable from of the name of the frame type.
* XXX This should be eliminated and we use GetFrameType() instead...
*/
NS_IMETHOD GetFrameName(nsString& aResult) const = 0;
/**
* Called to dump out regression data that describes the layout
* of the frame and it's children, and so on. The format of the
* data is dictated to be XML (using a specific DTD); the
* specific kind of data dumped is up to the frame itself, with
* the caveat that some base types are defined.
* For more information, see XXX.
*
* Argument aIncludeStyleData: if PR_TRUE, style information is dumpted, otherwise it is not
*/
NS_IMETHOD DumpRegressionData(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent, PRBool aIncludeStyleData) = 0;
/**
* Get the size of the frame object. The size value should include
* all subordinate data referenced by the frame that is not
* accounted for by child frames. However, this value should not
* include the content objects, style contexts, views or other data
* that lies logically outside the frame system.
*
* If the implementation so chooses, instead of returning the total
* subordinate data it may instead use the sizeof handler to store
* away subordinate data under its own key so that the subordinate
* data may be tabulated independently of the frame itself.
*
* The caller is responsible for recursing over all child-lists that
* the frame supports.
*/
NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const = 0;
NS_IMETHOD VerifyTree() const = 0;
/**
* See if tree verification is enabled. To enable tree verification add
* "frameverifytree:1" to your NSPR_LOG_MODULES environment variable
* (any non-zero debug level will work). Or, call SetVerifyTreeEnable
* with PR_TRUE.
*/
static NS_LAYOUT PRBool GetVerifyTreeEnable();
/**
* Set the verify-tree enable flag.
*/
static NS_LAYOUT void SetVerifyTreeEnable(PRBool aEnabled);
/**
* See if style tree verification is enabled. To enable style tree
* verification add "styleverifytree:1" to your NSPR_LOG_MODULES
* environment variable (any non-zero debug level will work). Or,
* call SetVerifyStyleTreeEnable with PR_TRUE.
*/
static NS_LAYOUT PRBool GetVerifyStyleTreeEnable();
/**
* Set the verify-style-tree enable flag.
*/
static NS_LAYOUT void SetVerifyStyleTreeEnable(PRBool aEnabled);
/**
* The frame class and related classes share an nspr log module
* for logging frame activity.
*
* Note: the log module is created during library initialization which
* means that you cannot perform logging before then.
*/
static NS_LAYOUT PRLogModuleInfo* GetLogModuleInfo();
// Show frame borders when rendering
static NS_LAYOUT void ShowFrameBorders(PRBool aEnable);
static NS_LAYOUT PRBool GetShowFrameBorders();
// Show frame border of event target
static NS_LAYOUT void ShowEventTargetFrameBorder(PRBool aEnable);
static NS_LAYOUT PRBool GetShowEventTargetFrameBorder();
private:
NS_IMETHOD_(nsrefcnt) AddRef(void) = 0;
NS_IMETHOD_(nsrefcnt) Release(void) = 0;
};
#endif /* nsIFrameDebug_h___ */