зеркало из https://github.com/mozilla/pjs.git
277 строки
8.1 KiB
C++
277 строки
8.1 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla layout engine.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation <http://www.mozilla.org/>.
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*
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsQueryFrame_h
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#define nsQueryFrame_h
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#include "nscore.h"
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#define NS_DECL_QUERYFRAME_TARGET(classname) \
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static const nsQueryFrame::FrameIID kFrameIID = nsQueryFrame::classname##_id;
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#define NS_DECL_QUERYFRAME \
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virtual void* QueryFrame(FrameIID id);
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#define NS_QUERYFRAME_HEAD(class) \
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void* class::QueryFrame(FrameIID id) { switch (id) {
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#define NS_QUERYFRAME_ENTRY(class) \
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case class::kFrameIID: return static_cast<class*>(this);
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#define NS_QUERYFRAME_ENTRY_CONDITIONAL(class, condition) \
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case class::kFrameIID: \
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if (condition) return static_cast<class*>(this); \
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break;
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#define NS_QUERYFRAME_TAIL_INHERITING(class) \
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default: break; \
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} \
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return class::QueryFrame(id); \
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}
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#define NS_QUERYFRAME_TAIL_INHERITANCE_ROOT \
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default: break; \
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} \
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return nsnull; \
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}
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class nsQueryFrame
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{
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public:
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enum FrameIID {
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BRFrame_id,
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nsAutoRepeatBoxFrame_id,
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nsBCTableCellFrame_id,
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nsBlockFrame_id,
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nsBox_id,
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nsBoxFrame_id,
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nsBulletFrame_id,
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nsButtonBoxFrame_id,
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nsCanvasFrame_id,
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nsColumnSetFrame_id,
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nsComboboxControlFrame_id,
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nsComboboxDisplayFrame_id,
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nsContainerFrame_id,
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nsContinuingTextFrame_id,
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nsDeckFrame_id,
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nsDocElementBoxFrame_id,
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nsFieldSetFrame_id,
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nsFileControlFrame_id,
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nsFirstLetterFrame_id,
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nsFirstLineFrame_id,
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nsFormControlFrame_id,
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nsFrame_id,
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nsGfxButtonControlFrame_id,
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nsGfxCheckboxControlFrame_id,
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nsGfxRadioControlFrame_id,
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nsGridRowGroupFrame_id,
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nsGridRowLeafFrame_id,
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nsGroupBoxFrame_id,
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nsHTMLButtonControlFrame_id,
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nsHTMLCanvasFrame_id,
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nsHTMLContainerFrame_id,
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nsHTMLFramesetBlankFrame_id,
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nsHTMLFramesetBorderFrame_id,
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nsHTMLFramesetFrame_id,
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nsHTMLScrollFrame_id,
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nsIAnonymousContentCreator_id,
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nsIComboboxControlFrame_id,
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nsIFormControlFrame_id,
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nsIFrame_id,
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nsIFrameFrame_id,
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nsIListControlFrame_id,
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nsIMathMLFrame_id,
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nsIMenuFrame_id,
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nsIObjectFrame_id,
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nsIPageSequenceFrame_id,
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nsIPercentHeightObserver_id,
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nsIRootBox_id,
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nsISVGChildFrame_id,
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nsISVGGlyphFragmentLeaf_id,
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nsISVGGlyphFragmentNode_id,
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nsISVGSVGFrame_id,
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nsIScrollableFrame_id,
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nsIScrollbarFrame_id,
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nsIScrollbarMediator_id,
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nsISelectControlFrame_id,
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nsIStatefulFrame_id,
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nsITableCellLayout_id,
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nsITableLayout_id,
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nsITextControlFrame_id,
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nsITreeBoxObject_id,
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nsImageBoxFrame_id,
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nsImageControlFrame_id,
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nsImageFrame_id,
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nsInlineFrame_id,
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nsIsIndexFrame_id,
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nsLeafBoxFrame_id,
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nsLeafFrame_id,
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nsLegendFrame_id,
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nsListBoxBodyFrame_id,
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nsListControlFrame_id,
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nsListItemFrame_id,
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nsMathMLContainerFrame_id,
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nsMathMLForeignFrameWrapper_id,
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nsMathMLFrame_id,
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nsMathMLmactionFrame_id,
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nsMathMLmathBlockFrame_id,
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nsMathMLmathInlineFrame_id,
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nsMathMLmencloseFrame_id,
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nsMathMLmfencedFrame_id,
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nsMathMLmfracFrame_id,
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nsMathMLmmultiscriptsFrame_id,
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nsMathMLmoFrame_id,
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nsMathMLmoverFrame_id,
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nsMathMLmpaddedFrame_id,
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nsMathMLmphantomFrame_id,
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nsMathMLmrootFrame_id,
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nsMathMLmrowFrame_id,
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nsMathMLmspaceFrame_id,
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nsMathMLmsqrtFrame_id,
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nsMathMLmstyleFrame_id,
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nsMathMLmsubFrame_id,
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nsMathMLmsubsupFrame_id,
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nsMathMLmsupFrame_id,
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nsMathMLmtableFrame_id,
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nsMathMLmtableOuterFrame_id,
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nsMathMLmtdFrame_id,
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nsMathMLmtdInnerFrame_id,
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nsMathMLmtrFrame_id,
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nsMathMLmunderFrame_id,
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nsMathMLmunderoverFrame_id,
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nsMathMLsemanticsFrame_id,
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nsMathMLTokenFrame_id,
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nsMenuBarFrame_id,
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nsMenuFrame_id,
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nsMenuPopupFrame_id,
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nsObjectFrame_id,
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nsPageBreakFrame_id,
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nsPageContentFrame_id,
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nsPageFrame_id,
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nsPlaceholderFrame_id,
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nsPopupSetFrame_id,
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nsProgressFrame_id,
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nsProgressMeterFrame_id,
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nsResizerFrame_id,
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nsRootBoxFrame_id,
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nsScrollbarButtonFrame_id,
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nsScrollbarFrame_id,
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nsSelectsAreaFrame_id,
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nsSimplePageSequenceFrame_id,
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nsSliderFrame_id,
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nsSplittableFrame_id,
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nsSplitterFrame_id,
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nsStackFrame_id,
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nsSubDocumentFrame_id,
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nsSVGAFrame_id,
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nsSVGClipPathFrame_id,
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nsSVGContainerFrame_id,
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nsSVGDisplayContainerFrame_id,
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nsSVGFilterFrame_id,
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nsSVGForeignObjectFrame_id,
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nsSVGGenericContainerFrame_id,
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nsSVGGeometryFrame_id,
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nsSVGGFrame_id,
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nsSVGGlyphFrame_id,
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nsSVGGradientFrame_id,
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nsSVGImageFrame_id,
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nsSVGInnerSVGFrame_id,
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nsSVGLeafFrame_id,
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nsSVGLinearGradientFrame_id,
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nsSVGMarkerFrame_id,
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nsSVGMaskFrame_id,
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nsSVGOuterSVGFrame_id,
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nsSVGPaintServerFrame_id,
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nsSVGPathGeometryFrame_id,
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nsSVGPatternFrame_id,
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nsSVGRadialGradientFrame_id,
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nsSVGStopFrame_id,
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nsSVGSwitchFrame_id,
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nsSVGTextContainerFrame_id,
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nsSVGTextFrame_id,
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nsSVGTextPathFrame_id,
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nsSVGTSpanFrame_id,
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nsSVGUseFrame_id,
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nsTableCaptionFrame_id,
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nsTableCellFrame_id,
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nsTableColFrame_id,
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nsTableColGroupFrame_id,
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nsTableFrame_id,
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nsTableOuterFrame_id,
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nsTableRowFrame_id,
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nsTableRowGroupFrame_id,
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nsTextBoxFrame_id,
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nsTextControlFrame_id,
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nsTextFrame_id,
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nsTitleBarFrame_id,
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nsTreeBodyFrame_id,
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nsTreeColFrame_id,
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nsVideoFrame_id,
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nsXULLabelFrame_id,
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nsXULScrollFrame_id,
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ViewportFrame_id,
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// The PresArena implementation uses this bit to distinguish
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// objects allocated by size (that is, non-frames) from objects
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// allocated by code (that is, frames). It should not collide
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// with any frame ID. It is not 0x80000000 to avoid the question
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// of whether enumeration constants are signed.
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NON_FRAME_MARKER = 0x40000000
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};
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virtual void* QueryFrame(FrameIID id) = 0;
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};
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class do_QueryFrame
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{
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public:
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do_QueryFrame(nsQueryFrame *s) : mRawPtr(s) { }
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template<class Dest>
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operator Dest*() {
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if (!mRawPtr)
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return nsnull;
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return reinterpret_cast<Dest*>(mRawPtr->QueryFrame(Dest::kFrameIID));
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}
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private:
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nsQueryFrame *mRawPtr;
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};
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#endif // nsQueryFrame_h
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