зеркало из https://github.com/mozilla/gecko-dev.git
320 строки
9.2 KiB
C++
320 строки
9.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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 "nsAttrValue.h"
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#include "nsFrame.h"
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#include "nsDisplayList.h"
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#include "FrameLayerBuilder.h"
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#include "nsPrintfCString.h"
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#include <iostream>
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#include <stdio.h>
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using namespace mozilla;
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using namespace mozilla::layers;
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#ifdef DEBUG
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class nsLayoutDebugger : public nsILayoutDebugger {
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public:
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nsLayoutDebugger();
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NS_DECL_ISUPPORTS
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NS_IMETHOD SetShowFrameBorders(bool aEnable) override;
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NS_IMETHOD GetShowFrameBorders(bool* aResult) override;
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NS_IMETHOD SetShowEventTargetFrameBorder(bool aEnable) override;
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NS_IMETHOD GetShowEventTargetFrameBorder(bool* aResult) override;
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protected:
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virtual ~nsLayoutDebugger();
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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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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_ISUPPORTS(nsLayoutDebugger, nsILayoutDebugger)
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NS_IMETHODIMP
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nsLayoutDebugger::SetShowFrameBorders(bool aEnable)
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{
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nsFrame::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(bool* aResult)
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{
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*aResult = nsFrame::GetShowFrameBorders();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsLayoutDebugger::SetShowEventTargetFrameBorder(bool aEnable)
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{
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nsFrame::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(bool* aResult)
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{
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*aResult = nsFrame::GetShowEventTargetFrameBorder();
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return NS_OK;
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}
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#endif
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std::ostream& operator<<(std::ostream& os, const nsPrintfCString& rhs) {
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os << rhs.get();
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return os;
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}
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static void
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PrintDisplayListTo(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList,
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std::stringstream& aStream, uint32_t aIndent, bool aDumpHtml);
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static void
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PrintDisplayItemTo(nsDisplayListBuilder* aBuilder, nsDisplayItem* aItem,
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std::stringstream& aStream, uint32_t aIndent, bool aDumpSublist, bool aDumpHtml)
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{
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std::stringstream ss;
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if (!aDumpHtml) {
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for (uint32_t indent = 0; indent < aIndent; indent++) {
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aStream << " ";
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}
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}
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nsAutoString contentData;
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nsIFrame* f = aItem->Frame();
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#ifdef DEBUG_FRAME_DUMP
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f->GetFrameName(contentData);
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#endif
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nsIContent* content = f->GetContent();
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if (content) {
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nsString tmp;
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if (content->GetID()) {
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content->GetID()->ToString(tmp);
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contentData.AppendLiteral(" id:");
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contentData.Append(tmp);
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}
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const nsAttrValue* classes = content->IsElement() ?
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content->AsElement()->GetClasses() : nullptr;
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if (classes) {
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classes->ToString(tmp);
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contentData.AppendLiteral(" class:");
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contentData.Append(tmp);
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}
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}
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bool snap;
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nsRect rect = aItem->GetBounds(aBuilder, &snap);
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nsRect layerRect = rect - (*aItem->GetAnimatedGeometryRoot())->GetOffsetToCrossDoc(aItem->ReferenceFrame());
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nsRect vis = aItem->GetVisibleRect();
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nsRect component = aItem->GetComponentAlphaBounds(aBuilder);
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nsDisplayList* list = aItem->GetChildren();
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const DisplayItemClip& clip = aItem->GetClip();
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nsRegion opaque = aItem->GetOpaqueRegion(aBuilder, &snap);
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#ifdef MOZ_DUMP_PAINTING
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if (aDumpHtml && aItem->Painted()) {
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nsCString string(aItem->Name());
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string.Append('-');
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string.AppendInt((uint64_t)aItem);
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aStream << nsPrintfCString("<a href=\"javascript:ViewImage('%s')\">", string.BeginReading());
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}
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#endif
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aStream << nsPrintfCString("%s p=0x%p f=0x%p(%s) %sbounds(%d,%d,%d,%d) layerBounds(%d,%d,%d,%d) visible(%d,%d,%d,%d) componentAlpha(%d,%d,%d,%d) clip(%s) asr(%s) clipChain(%s)%s ref=0x%p agr=0x%p",
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aItem->Name(), aItem, (void*)f, NS_ConvertUTF16toUTF8(contentData).get(),
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(aItem->ZIndex() ? nsPrintfCString("z=%d ", aItem->ZIndex()).get() : ""),
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rect.x, rect.y, rect.width, rect.height,
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layerRect.x, layerRect.y, layerRect.width, layerRect.height,
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vis.x, vis.y, vis.width, vis.height,
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component.x, component.y, component.width, component.height,
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clip.ToString().get(),
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ActiveScrolledRoot::ToString(aItem->GetActiveScrolledRoot()).get(),
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DisplayItemClipChain::ToString(aItem->GetClipChain()).get(),
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aItem->IsUniform(aBuilder) ? " uniform" : "",
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aItem->ReferenceFrame(), aItem->GetAnimatedGeometryRoot()->mFrame);
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for (auto iter = opaque.RectIter(); !iter.Done(); iter.Next()) {
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const nsRect& r = iter.Get();
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aStream << nsPrintfCString(" (opaque %d,%d,%d,%d)", r.x, r.y, r.width, r.height);
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}
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const auto& willChange = aItem->Frame()->StyleDisplay()->mWillChange;
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if (!willChange.IsEmpty()) {
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aStream << " (will-change=";
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for (size_t i = 0; i < willChange.Length(); i++) {
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if (i > 0) {
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aStream << ",";
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}
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nsDependentAtomString buffer(willChange[i]);
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aStream << NS_LossyConvertUTF16toASCII(buffer).get();
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}
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aStream << ")";
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}
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// Display item specific debug info
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aItem->WriteDebugInfo(aStream);
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#ifdef MOZ_DUMP_PAINTING
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if (aDumpHtml && aItem->Painted()) {
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aStream << "</a>";
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}
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#endif
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uint32_t key = aItem->GetPerFrameKey();
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Layer* layer = mozilla::FrameLayerBuilder::GetDebugOldLayerFor(f, key);
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if (layer) {
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if (aDumpHtml) {
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aStream << nsPrintfCString(" <a href=\"#%p\">layer=%p</a>", layer, layer);
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} else {
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aStream << nsPrintfCString(" layer=0x%p", layer);
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}
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}
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#ifdef MOZ_DUMP_PAINTING
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if (aItem->GetType() == nsDisplayItem::TYPE_MASK) {
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nsCString str;
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(static_cast<nsDisplayMask*>(aItem))->PrintEffects(str);
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aStream << str.get();
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}
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if (aItem->GetType() == nsDisplayItem::TYPE_FILTER) {
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nsCString str;
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(static_cast<nsDisplayFilter*>(aItem))->PrintEffects(str);
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aStream << str.get();
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}
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#endif
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aStream << "\n";
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#ifdef MOZ_DUMP_PAINTING
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if (aDumpHtml && aItem->Painted()) {
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nsCString string(aItem->Name());
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string.Append('-');
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string.AppendInt((uint64_t)aItem);
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aStream << nsPrintfCString("<br><img id=\"%s\">\n", string.BeginReading());
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}
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#endif
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if (aDumpSublist && list) {
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PrintDisplayListTo(aBuilder, *list, aStream, aIndent+1, aDumpHtml);
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}
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}
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static void
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PrintDisplayListTo(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList,
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std::stringstream& aStream, uint32_t aIndent, bool aDumpHtml)
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{
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if (aDumpHtml) {
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aStream << "<ul>";
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}
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for (nsDisplayItem* i = aList.GetBottom(); i != nullptr; i = i->GetAbove()) {
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if (aDumpHtml) {
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aStream << "<li>";
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}
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PrintDisplayItemTo(aBuilder, i, aStream, aIndent, true, aDumpHtml);
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if (aDumpHtml) {
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aStream << "</li>";
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}
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}
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if (aDumpHtml) {
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aStream << "</ul>";
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}
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}
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void
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nsFrame::PrintDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayList& aList,
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std::stringstream& aStream,
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bool aDumpHtml)
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{
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PrintDisplayListTo(aBuilder, aList, aStream, 0, aDumpHtml);
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}
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/**
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* The two functions below are intended to be called from a debugger.
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*/
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void
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PrintDisplayItemToStdout(nsDisplayListBuilder* aBuilder, nsDisplayItem* aItem)
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{
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std::stringstream stream;
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PrintDisplayItemTo(aBuilder, aItem, stream, 0, true, false);
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std::cout << stream.str() << std::endl;
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}
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void
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PrintDisplayListToStdout(nsDisplayListBuilder* aBuilder, const nsDisplayList& aList)
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{
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std::stringstream stream;
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PrintDisplayListTo(aBuilder, aList, stream, 0, false);
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std::cout << stream.str() << std::endl;
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}
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#ifdef MOZ_DUMP_PAINTING
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static void
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PrintDisplayListSetItem(nsDisplayListBuilder* aBuilder,
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const char* aItemName,
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const nsDisplayList& aList,
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std::stringstream& aStream,
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bool aDumpHtml)
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{
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if (aDumpHtml) {
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aStream << "<li>";
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}
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aStream << aItemName << "\n";
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PrintDisplayListTo(aBuilder, aList, aStream, 0, aDumpHtml);
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if (aDumpHtml) {
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aStream << "</li>";
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}
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}
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void
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nsFrame::PrintDisplayListSet(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aSet,
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std::stringstream& aStream,
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bool aDumpHtml)
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{
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if (aDumpHtml) {
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aStream << "<ul>";
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}
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PrintDisplayListSetItem(aBuilder, "[BorderBackground]", *(aSet.BorderBackground()), aStream, aDumpHtml);
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PrintDisplayListSetItem(aBuilder, "[BlockBorderBackgrounds]", *(aSet.BlockBorderBackgrounds()), aStream, aDumpHtml);
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PrintDisplayListSetItem(aBuilder, "[Floats]", *(aSet.Floats()), aStream, aDumpHtml);
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PrintDisplayListSetItem(aBuilder, "[PositionedDescendants]", *(aSet.PositionedDescendants()), aStream, aDumpHtml);
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PrintDisplayListSetItem(aBuilder, "[Outlines]", *(aSet.Outlines()), aStream, aDumpHtml);
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PrintDisplayListSetItem(aBuilder, "[Content]", *(aSet.Content()), aStream, aDumpHtml);
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if (aDumpHtml) {
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aStream << "</ul>";
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}
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}
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#endif
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