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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef PreloadKey_h |
| 6 #define PreloadKey_h |
| 7 |
| 8 #include "platform/loader/fetch/Resource.h" |
| 9 #include "platform/weborigin/KURL.h" |
| 10 #include "platform/weborigin/KURLHash.h" |
| 11 #include "platform/wtf/HashTraits.h" |
| 12 |
| 13 namespace blink { |
| 14 |
| 15 // PreloadKey is a key type of the preloads map in a fetch group (a.k.a. |
| 16 // blink::ResourceFetcher). |
| 17 struct PreloadKey final { |
| 18 public: |
| 19 struct Hash { |
| 20 STATIC_ONLY(Hash); |
| 21 |
| 22 public: |
| 23 static unsigned GetHash(const PreloadKey& key) { |
| 24 return KURLHash::GetHash(key.url); |
| 25 } |
| 26 static bool Equal(const PreloadKey& x, const PreloadKey& y) { |
| 27 return x == y; |
| 28 } |
| 29 static constexpr bool safe_to_compare_to_empty_or_deleted = false; |
| 30 }; |
| 31 |
| 32 PreloadKey() = default; |
| 33 PreloadKey(WTF::HashTableDeletedValueType) |
| 34 : url(WTF::kHashTableDeletedValue) {} |
| 35 PreloadKey(const KURL& url, Resource::Type type) |
| 36 : url(RemoveFragmentFromUrl(url)), type(type) {} |
| 37 |
| 38 bool IsHashTableDeletedValue() const { return url.IsHashTableDeletedValue(); } |
| 39 |
| 40 bool operator==(const PreloadKey& x) const { |
| 41 return url == x.url && type == x.type; |
| 42 } |
| 43 |
| 44 static KURL RemoveFragmentFromUrl(const KURL& src) { |
| 45 if (!src.HasFragmentIdentifier()) |
| 46 return src; |
| 47 KURL url = src; |
| 48 url.RemoveFragmentIdentifier(); |
| 49 return url; |
| 50 } |
| 51 |
| 52 KURL url; |
| 53 Resource::Type type = Resource::kMainResource; |
| 54 }; |
| 55 |
| 56 } // namespace blink |
| 57 |
| 58 namespace WTF { |
| 59 |
| 60 template <> |
| 61 struct DefaultHash<blink::PreloadKey> { |
| 62 using Hash = blink::PreloadKey::Hash; |
| 63 }; |
| 64 |
| 65 template <> |
| 66 struct HashTraits<blink::PreloadKey> |
| 67 : public SimpleClassHashTraits<blink::PreloadKey> {}; |
| 68 |
| 69 } // namespace WTF |
| 70 |
| 71 #endif // PreloadKey_h |
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