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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/loader/cache/CachedResourceClient.h | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/loader/cache/CachedResourceClient.h')
-rw-r--r-- | Source/WebCore/loader/cache/CachedResourceClient.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/Source/WebCore/loader/cache/CachedResourceClient.h b/Source/WebCore/loader/cache/CachedResourceClient.h new file mode 100644 index 0000000..275d331 --- /dev/null +++ b/Source/WebCore/loader/cache/CachedResourceClient.h @@ -0,0 +1,71 @@ +/* + Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) + Copyright (C) 2001 Dirk Mueller <mueller@kde.org> + Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. + + This class provides all functionality needed for loading images, style sheets and html + pages from the web. It has a memory cache for these objects. +*/ + +#ifndef CachedResourceClient_h +#define CachedResourceClient_h + +#include <wtf/FastAllocBase.h> +#include <wtf/Forward.h> + +namespace WebCore { + + class CachedCSSStyleSheet; + class CachedFont; + class CachedResource; + class CachedImage; + class Image; + class IntRect; + class KURL; + + /** + * @internal + * + * a client who wants to load stylesheets, images or scripts from the web has to + * inherit from this class and overload one of the 3 functions + * + */ + class CachedResourceClient : public FastAllocBase + { + public: + virtual ~CachedResourceClient() { } + + // Called whenever a frame of an image changes, either because we got more data from the network or + // because we are animating. If not null, the IntRect is the changed rect of the image. + virtual void imageChanged(CachedImage*, const IntRect* = 0) { }; + + // Called to find out if this client wants to actually display the image. Used to tell when we + // can halt animation. Content nodes that hold image refs for example would not render the image, + // but RenderImages would (assuming they have visibility: visible and their render tree isn't hidden + // e.g., in the b/f cache or in a background tab). + virtual bool willRenderImage(CachedImage*) { return false; } + + virtual void setCSSStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* charset */, const CachedCSSStyleSheet*) { } + virtual void setXSLStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* sheet */) { } + virtual void fontLoaded(CachedFont*) {}; + virtual void notifyFinished(CachedResource*) { } + }; + +} + +#endif |