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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:52 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:52 -0800 |
commit | 8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2 (patch) | |
tree | 11425ea0b299d6fb89c6d3618a22d97d5bf68d0f /WebCore/loader/CachedResourceClient.h | |
parent | 648161bb0edfc3d43db63caed5cc5213bc6cb78f (diff) | |
download | external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.zip external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.tar.gz external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'WebCore/loader/CachedResourceClient.h')
-rw-r--r-- | WebCore/loader/CachedResourceClient.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/WebCore/loader/CachedResourceClient.h b/WebCore/loader/CachedResourceClient.h new file mode 100644 index 0000000..1d8d45e --- /dev/null +++ b/WebCore/loader/CachedResourceClient.h @@ -0,0 +1,82 @@ +/* + This file is part of the KDE libraries + + Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) + Copyright (C) 2001 Dirk Mueller <mueller@kde.org> + Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. + + 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 + +#if ENABLE(XBL) +namespace XBL { + class XBLDocument; +} +#endif + +namespace WebCore { + + class CachedCSSStyleSheet; + class CachedFont; + class CachedResource; + class CachedImage; + class String; + class Image; + class IntRect; + + /** + * @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: + virtual ~CachedResourceClient() { } + + // Called whenever a frame of an image changes, either because we got more data from the network or + // because we are animating. + virtual void imageChanged(CachedImage*) { }; + + // 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& /*URL*/, const String& /*charset*/, const CachedCSSStyleSheet*) { } + virtual void setXSLStyleSheet(const String& /*URL*/, const String& /*sheet*/) { } + + virtual void fontLoaded(CachedFont*) {}; + +#if ENABLE(XBL) + virtual void setXBLDocument(const String& /*URL*/, XBL::XBLDocument*) { } +#endif + + virtual void notifyFinished(CachedResource*) { } + }; + +} + +#endif |