pjs/layout/base/public/nsIStyleFrameConstruction.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 nsIStyleFrameConstruction_h___
#define nsIStyleFrameConstruction_h___
#include "nsISupports.h"
class nsIPresShell;
class nsIPresContext;
class nsIContent;
class nsIFrame;
class nsIAtom;
class nsIStyleSheet;
class nsIStyleRule;
class nsStyleChangeList;
class nsIFrameManager;
class nsILayoutHistoryState;
// IID for the nsIStyleSet interface {a6cf9066-15b3-11d2-932e-00805f8add32}
#define NS_ISTYLE_FRAME_CONSTRUCTION_IID \
{0xa6cf9066, 0x15b3, 0x11d2, {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
class nsIStyleFrameConstruction : public nsISupports {
public:
/**
* Create frames for the root content element and its child content.
*/
NS_IMETHOD ConstructRootFrame(nsIPresShell* aPresShell,
nsIPresContext* aPresContext,
nsIContent* aDocElement,
nsIFrame*& aFrameSubTree) = 0;
// Causes reconstruction of a frame hierarchy rooted by the
// document element frame. This is often called when radical style
// change precludes incremental reflow.
NS_IMETHOD ReconstructDocElementHierarchy(nsIPresContext* aPresContext) = 0;
NS_IMETHOD ContentAppended(nsIPresContext* aPresContext,
nsIContent* aContainer,
PRInt32 aNewIndexInContainer) = 0;
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NS_IMETHOD ContentInserted(nsIPresContext* aPresContext,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer,
nsILayoutHistoryState* aFrameState) = 0;
NS_IMETHOD ContentReplaced(nsIPresContext* aPresContext,
nsIContent* aContainer,
nsIContent* aOldChild,
nsIContent* aNewChild,
PRInt32 aIndexInContainer) = 0;
NS_IMETHOD ContentRemoved(nsIPresContext* aPresContext,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer) = 0;
NS_IMETHOD ContentChanged(nsIPresContext* aPresContext,
nsIContent* aContent,
nsISupports* aSubContent) = 0;
NS_IMETHOD ContentStatesChanged(nsIPresContext* aPresContext,
nsIContent* aContent1,
nsIContent* aContent2) = 0;
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
nsIContent* aContent,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aHint) = 0;
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// Style change notifications
NS_IMETHOD StyleRuleChanged(nsIPresContext* aPresContext,
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule,
PRInt32 aHint) = 0; // See nsStyleConsts fot hint values
NS_IMETHOD StyleRuleAdded(nsIPresContext* aPresContext,
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule) = 0;
NS_IMETHOD StyleRuleRemoved(nsIPresContext* aPresContext,
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule) = 0;
NS_IMETHOD ProcessRestyledFrames(nsStyleChangeList& aRestyleArray,
nsIPresContext* aPresContext) = 0;
// Notification that we were unable to render a replaced element.
NS_IMETHOD CantRenderReplacedElement(nsIPresShell* aPresShell,
nsIPresContext* aPresContext,
nsIFrame* aFrame) = 0;
// Request to create a continuing frame
NS_IMETHOD CreateContinuingFrame(nsIPresShell* aPresShell,
nsIPresContext* aPresContext,
nsIFrame* aFrame,
nsIFrame* aParentFrame,
nsIFrame** aContinuingFrame) = 0;
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// Request to find the primary frame associated with a given content object.
// This is typically called by the pres shell when there is no mapping in
// the pres shell hash table
NS_IMETHOD FindPrimaryFrameFor(nsIPresContext* aPresContext,
nsIFrameManager* aFrameManager,
nsIContent* aContent,
nsIFrame** aFrame) = 0;
};
#endif /* nsIStyleFrameConstruction_h___ */