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71 lines
1.6 KiB
C++
71 lines
1.6 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 "ImageCacheKey.h"
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#include "mozilla/Move.h"
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#include "File.h"
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#include "ImageURL.h"
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#include "nsHostObjectProtocolHandler.h"
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#include "nsString.h"
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namespace mozilla {
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using namespace dom;
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namespace image {
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ImageCacheKey::ImageCacheKey(nsIURI* aURI)
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aURI);
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bool isChrome;
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mIsChrome = NS_SUCCEEDED(aURI->SchemeIs("chrome", &isChrome)) && isChrome;
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aURI->GetSpec(mSpec);
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mHash = ComputeHash(mSpec);
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}
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ImageCacheKey::ImageCacheKey(ImageURL* aURI)
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{
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MOZ_ASSERT(aURI);
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bool isChrome;
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mIsChrome = NS_SUCCEEDED(aURI->SchemeIs("chrome", &isChrome)) && isChrome;
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aURI->GetSpec(mSpec);
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mHash = ComputeHash(mSpec);
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}
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ImageCacheKey::ImageCacheKey(const ImageCacheKey& aOther)
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: mSpec(aOther.mSpec)
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, mHash(aOther.mHash)
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, mIsChrome(aOther.mIsChrome)
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{ }
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ImageCacheKey::ImageCacheKey(ImageCacheKey&& aOther)
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: mSpec(Move(aOther.mSpec))
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, mHash(aOther.mHash)
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, mIsChrome(aOther.mIsChrome)
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{ }
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bool
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ImageCacheKey::operator==(const ImageCacheKey& aOther) const
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{
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return mSpec == aOther.mSpec;
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}
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/* static */ uint32_t
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ImageCacheKey::ComputeHash(const nsACString& aSpec)
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{
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// Since we frequently call Hash() several times in a row on the same
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// ImageCacheKey, as an optimization we compute our hash once and store it.
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return HashString(aSpec);
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}
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} // namespace image
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} // namespace mozilla
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