зеркало из https://github.com/mozilla/gecko-dev.git
109 строки
2.8 KiB
C++
109 строки
2.8 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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#include "gfxFontSrcURI.h"
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#include "nsIProtocolHandler.h"
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#include "nsProxyRelease.h"
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#include "nsNetUtil.h"
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#include "nsSimpleURI.h"
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#include "nsURIHashKey.h"
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static bool HasFlag(nsIURI* aURI, uint32_t aFlag) {
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nsresult rv;
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bool value = false;
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rv = NS_URIChainHasFlags(aURI, aFlag, &value);
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return NS_SUCCEEDED(rv) && value;
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}
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gfxFontSrcURI::gfxFontSrcURI(nsIURI* aURI) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aURI);
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mURI = aURI;
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// If we have a data: URI, we know that it is backed by an nsSimpleURI,
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// and that we don't need to serialize it ahead of time.
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nsCString scheme;
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mURI->GetScheme(scheme);
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if (scheme.EqualsLiteral("data")) {
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// We know that nsSimpleURI::From returns us a pointer to the same object,
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// and we hold a strong reference to the object in mURI, so no need to
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// hold it strongly here as well. (And we'd have to
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// NS_ReleaseOnMainThread it in our destructor anyway.)
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RefPtr<mozilla::net::nsSimpleURI> simpleURI =
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mozilla::net::nsSimpleURI::From(aURI);
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mSimpleURI = simpleURI;
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NS_ASSERTION(mSimpleURI,
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"Why aren't our data: URLs backed by nsSimpleURI?");
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} else {
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mSimpleURI = nullptr;
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}
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if (!mSimpleURI) {
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mURI->GetSpec(mSpec);
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}
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mHash = nsURIHashKey::HashKey(mURI);
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mInheritsSecurityContext =
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HasFlag(aURI, nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT);
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mSyncLoadIsOK = HasFlag(aURI, nsIProtocolHandler::URI_SYNC_LOAD_IS_OK);
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}
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gfxFontSrcURI::~gfxFontSrcURI() {
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NS_ReleaseOnMainThread("gfxFontSrcURI::mURI", mURI.forget());
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}
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bool gfxFontSrcURI::Equals(gfxFontSrcURI* aOther) {
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if (mSimpleURI) {
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if (aOther->mSimpleURI) {
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return mSimpleURI->Equals(aOther->mSimpleURI);
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}
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// The two URIs are probably different. Do a quick check on the
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// schemes before deciding to serialize mSimpleURI (which might be
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// quite large).
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{
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nsCString thisScheme;
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mSimpleURI->GetScheme(thisScheme);
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nsCString otherScheme;
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if (!StringBeginsWith(aOther->mSpec, thisScheme)) {
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return false;
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}
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}
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nsCString thisSpec;
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mSimpleURI->GetSpec(thisSpec);
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return thisSpec == aOther->mSpec;
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}
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if (aOther->mSimpleURI) {
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return aOther->Equals(this);
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}
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return mSpec == aOther->mSpec;
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}
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nsresult gfxFontSrcURI::GetSpec(nsACString& aResult) {
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if (mSimpleURI) {
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return mSimpleURI->GetSpec(aResult);
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}
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aResult = mSpec;
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return NS_OK;
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}
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nsCString gfxFontSrcURI::GetSpecOrDefault() {
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if (mSimpleURI) {
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return mSimpleURI->GetSpecOrDefault();
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}
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return mSpec;
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}
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