зеркало из https://github.com/mozilla/pjs.git
199 строки
5.8 KiB
C++
199 строки
5.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** 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 Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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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/*
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* implementation of interface that allows layout-debug extension access
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* to some internals of layout
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*/
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#include "nsILayoutDebugger.h"
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#include "nsIFrame.h"
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#include "nsIFrameDebug.h"
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#include "nsDisplayList.h"
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#include <stdio.h>
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#ifdef NS_DEBUG
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class nsLayoutDebugger : public nsILayoutDebugger {
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public:
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nsLayoutDebugger();
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virtual ~nsLayoutDebugger();
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NS_DECL_ISUPPORTS
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NS_IMETHOD SetShowFrameBorders(PRBool aEnable);
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NS_IMETHOD GetShowFrameBorders(PRBool* aResult);
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NS_IMETHOD SetShowEventTargetFrameBorder(PRBool aEnable);
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NS_IMETHOD GetShowEventTargetFrameBorder(PRBool* aResult);
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NS_IMETHOD GetContentSize(nsIDocument* aDocument,
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PRInt32* aSizeInBytesResult);
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NS_IMETHOD GetFrameSize(nsIPresShell* aPresentation,
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PRInt32* aSizeInBytesResult);
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NS_IMETHOD GetStyleSize(nsIPresShell* aPresentation,
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PRInt32* aSizeInBytesResult);
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};
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nsresult
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NS_NewLayoutDebugger(nsILayoutDebugger** aResult)
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{
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NS_PRECONDITION(aResult, "null OUT ptr");
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if (!aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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nsLayoutDebugger* it = new nsLayoutDebugger();
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(NS_GET_IID(nsILayoutDebugger), (void**)aResult);
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}
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nsLayoutDebugger::nsLayoutDebugger()
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{
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}
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nsLayoutDebugger::~nsLayoutDebugger()
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{
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}
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NS_IMPL_ISUPPORTS1(nsLayoutDebugger, nsILayoutDebugger)
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NS_IMETHODIMP
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nsLayoutDebugger::SetShowFrameBorders(PRBool aEnable)
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{
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nsIFrameDebug::ShowFrameBorders(aEnable);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::GetShowFrameBorders(PRBool* aResult)
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{
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*aResult = nsIFrameDebug::GetShowFrameBorders();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::SetShowEventTargetFrameBorder(PRBool aEnable)
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{
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nsIFrameDebug::ShowEventTargetFrameBorder(aEnable);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::GetShowEventTargetFrameBorder(PRBool* aResult)
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{
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*aResult = nsIFrameDebug::GetShowEventTargetFrameBorder();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::GetContentSize(nsIDocument* aDocument,
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PRInt32* aSizeInBytesResult)
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{
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*aSizeInBytesResult = 0;
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::GetFrameSize(nsIPresShell* aPresentation,
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PRInt32* aSizeInBytesResult)
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{
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*aSizeInBytesResult = 0;
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::GetStyleSize(nsIPresShell* aPresentation,
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PRInt32* aSizeInBytesResult)
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{
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*aSizeInBytesResult = 0;
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return NS_ERROR_FAILURE;
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}
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static void
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PrintDisplayListTo(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList,
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PRInt32 aIndent, FILE* aOutput)
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{
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for (nsDisplayItem* i = aList.GetBottom(); i != nsnull; i = i->GetAbove()) {
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for (PRInt32 j = 0; j < aIndent; ++j) {
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fputc(' ', aOutput);
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}
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nsIFrame* f = i->GetUnderlyingFrame();
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nsIFrameDebug* fDebug = do_QueryFrame(f);
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nsAutoString fName;
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if (fDebug) {
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fDebug->GetFrameName(fName);
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}
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nsRect rect = i->GetBounds(aBuilder);
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switch (i->GetType()) {
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case nsDisplayItem::TYPE_CLIP: {
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nsDisplayClip* c = static_cast<nsDisplayClip*>(i);
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rect = c->GetClipRect();
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break;
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}
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default:
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break;
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}
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fprintf(aOutput, "%s %p(%s) (%d,%d,%d,%d)%s%s%s%s\n", i->Name(),
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(void*)f, NS_ConvertUTF16toUTF8(fName).get(),
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rect.x, rect.y, rect.width, rect.height,
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i->IsOpaque(aBuilder) ? " opaque" : "",
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i->IsUniform(aBuilder) ? " uniform" : "",
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f && aBuilder->IsMovingFrame(f) ? " moving" : "",
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f && aBuilder->IsMovingFrame(f) && !i->GetList() &&
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i->IsVaryingRelativeToMovingFrame(aBuilder) ? " varying" : "");
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nsDisplayList* list = i->GetList();
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if (list) {
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PrintDisplayListTo(aBuilder, *list, aIndent + 4, aOutput);
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}
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}
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}
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void
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nsIFrameDebug::PrintDisplayList(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList)
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{
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PrintDisplayListTo(aBuilder, aList, 0, stderr);
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}
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#endif
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