1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef LinkResource_h 32 #define LinkResource_h 33 34 #include "core/fetch/FetchRequest.h" 35 #include "platform/heap/Handle.h" 36 #include "platform/weborigin/KURL.h" 37 #include "wtf/text/WTFString.h" 38 39 namespace blink { 40 41 class HTMLLinkElement; 42 43 class LinkResource : public NoBaseWillBeGarbageCollectedFinalized<LinkResource> { 44 WTF_MAKE_NONCOPYABLE(LinkResource); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED; 45 public: 46 enum Type { 47 Style, 48 Import, 49 Manifest 50 }; 51 52 explicit LinkResource(HTMLLinkElement*); 53 virtual ~LinkResource(); 54 55 bool shouldLoadResource() const; 56 LocalFrame* loadingFrame() const; 57 58 virtual Type type() const = 0; 59 virtual void process() = 0; ownerRemoved()60 virtual void ownerRemoved() { } ownerInserted()61 virtual void ownerInserted() { } 62 virtual bool hasLoaded() const = 0; 63 64 virtual void trace(Visitor*); 65 66 protected: 67 RawPtrWillBeMember<HTMLLinkElement> m_owner; 68 }; 69 70 class LinkRequestBuilder { 71 STACK_ALLOCATED(); 72 public: 73 explicit LinkRequestBuilder(HTMLLinkElement* owner); 74 isValid()75 bool isValid() const { return !m_url.isEmpty() && m_url.isValid(); } url()76 const KURL& url() const { return m_url; } charset()77 const AtomicString& charset() const { return m_charset; } 78 FetchRequest build(bool blocking) const; 79 80 private: 81 RawPtrWillBeMember<HTMLLinkElement> m_owner; 82 KURL m_url; 83 AtomicString m_charset; 84 }; 85 86 } // namespace blink 87 88 #endif // LinkResource_h 89