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Unified Diff: third_party/WebKit/Source/core/loader/LinkPreloadResourceClients.h

Issue 1586563014: Add <link rel=preload> onload support for scripts and styles (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebased and added trace for ResourceOWner Created 4 years, 11 months ago
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Index: third_party/WebKit/Source/core/loader/LinkPreloadResourceClients.h
diff --git a/third_party/WebKit/Source/core/loader/LinkPreloadResourceClients.h b/third_party/WebKit/Source/core/loader/LinkPreloadResourceClients.h
new file mode 100644
index 0000000000000000000000000000000000000000..84e64501018f8eae55a4e2a0185ed2477f7f0808
--- /dev/null
+++ b/third_party/WebKit/Source/core/loader/LinkPreloadResourceClients.h
@@ -0,0 +1,94 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef LinkPreloadResourceClients_h
+#define LinkPreloadResourceClients_h
+
+#include "core/fetch/CSSStyleSheetResource.h"
+#include "core/fetch/FontResource.h"
+#include "core/fetch/ImageResourceClient.h"
+#include "core/fetch/ResourceOwner.h"
+#include "core/fetch/ScriptResource.h"
+#include "core/fetch/StyleSheetResourceClient.h"
+
+namespace blink {
+
+class LinkLoader;
+
+class LinkPreloadResourceClient {
sof 2016/01/20 12:22:53 Since this contains a heap reference, you need to
Yoav Weiss 2016/01/20 13:14:01 Had to define it as NoBaseWillBeGarbageCollectedFi
+public:
+ virtual ~LinkPreloadResourceClient() { }
+
+ void triggerEvents(const Resource*) const;
+
+protected:
+ LinkPreloadResourceClient(LinkLoader* loader)
+ : m_loader(loader)
+ {
+ ASSERT(loader);
+ }
+
+private:
+ LinkLoader* m_loader;
sof 2016/01/20 12:22:53 RawPtrWillBeMember<LinkLoader>
Yoav Weiss 2016/01/20 13:14:01 done
+};
+
+class LinkPreloadScriptResourceClient: public ResourceOwner<ScriptResource, ScriptResourceClient>, public LinkPreloadResourceClient {
+public:
+ static PassOwnPtrWillBeRawPtr<LinkPreloadScriptResourceClient> create(LinkLoader* loader, ScriptResource* resource)
+ {
+ return adoptPtrWillBeNoop(new LinkPreloadScriptResourceClient(loader, resource));
+ }
+
+ virtual String debugName() const { return "LinkPreloadScript"; }
+
+ void notifyFinished(Resource* resource) override
+ {
+ ASSERT(this->resource() == resource);
+ triggerEvents(resource);
+ }
+
+ DEFINE_INLINE_VIRTUAL_TRACE()
+ {
+ ResourceOwner<ScriptResource, ScriptResourceClient>::trace(visitor);
+ }
+
+private:
+ LinkPreloadScriptResourceClient(LinkLoader* loader, ScriptResource* resource)
+ : LinkPreloadResourceClient(loader)
+ {
+ setResource(resource);
+ }
+};
+
+class LinkPreloadStyleResourceClient: public ResourceOwner<CSSStyleSheetResource, StyleSheetResourceClient>, public LinkPreloadResourceClient {
+public:
+ static PassOwnPtrWillBeRawPtr<LinkPreloadStyleResourceClient> create(LinkLoader* loader, CSSStyleSheetResource* resource)
+ {
+ return adoptPtrWillBeNoop(new LinkPreloadStyleResourceClient(loader, resource));
+ }
+
+ virtual String debugName() const { return "LinkPreloadStyle"; }
+
+ void setCSSStyleSheet(const String&, const KURL&, const String&, const CSSStyleSheetResource* resource) override
+ {
+ ASSERT(this->resource() == resource);
+ triggerEvents(static_cast<const Resource*>(resource));
+ }
+
+ DEFINE_INLINE_VIRTUAL_TRACE()
+ {
+ ResourceOwner<CSSStyleSheetResource, StyleSheetResourceClient>::trace(visitor);
+ }
+
+private:
+ LinkPreloadStyleResourceClient(LinkLoader* loader, CSSStyleSheetResource* resource)
+ : LinkPreloadResourceClient(loader)
+ {
+ setResource(resource);
+ }
+};
+
+}
+
+#endif // LinkPreloadResourceClients_h

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