1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
4 * Copyright (C) 2013 Google Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "config.h"
24 #include "core/css/resolver/ElementStyleResources.h"
25
26 #include "core/css/CSSGradientValue.h"
27 #include "core/css/CSSSVGDocumentValue.h"
28 #include "core/rendering/style/StyleGeneratedImage.h"
29 #include "core/rendering/style/StyleImage.h"
30 #include "core/rendering/style/StylePendingImage.h"
31 #include "platform/graphics/filters/FilterOperation.h"
32
33 namespace WebCore {
34
ElementStyleResources()35 ElementStyleResources::ElementStyleResources()
36 : m_hasNewCustomFilterProgram(false)
37 , m_deviceScaleFactor(1)
38 {
39 }
40
styleImage(const TextLinkColors & textLinkColors,Color currentColor,CSSPropertyID property,CSSValue * value)41 PassRefPtr<StyleImage> ElementStyleResources::styleImage(const TextLinkColors& textLinkColors, Color currentColor, CSSPropertyID property, CSSValue* value)
42 {
43 if (value->isImageValue())
44 return cachedOrPendingFromValue(property, toCSSImageValue(value));
45
46 if (value->isImageGeneratorValue()) {
47 if (value->isGradientValue())
48 return generatedOrPendingFromValue(property, toCSSGradientValue(value)->gradientWithStylesResolved(textLinkColors, currentColor).get());
49 return generatedOrPendingFromValue(property, toCSSImageGeneratorValue(value));
50 }
51
52 if (value->isImageSetValue())
53 return setOrPendingFromValue(property, toCSSImageSetValue(value));
54
55 if (value->isCursorImageValue())
56 return cursorOrPendingFromValue(property, toCSSCursorImageValue(value));
57
58 return 0;
59 }
60
generatedOrPendingFromValue(CSSPropertyID property,CSSImageGeneratorValue * value)61 PassRefPtr<StyleImage> ElementStyleResources::generatedOrPendingFromValue(CSSPropertyID property, CSSImageGeneratorValue* value)
62 {
63 if (value->isPending()) {
64 m_pendingImageProperties.set(property, value);
65 return StylePendingImage::create(value);
66 }
67 return StyleGeneratedImage::create(value);
68 }
69
setOrPendingFromValue(CSSPropertyID property,CSSImageSetValue * value)70 PassRefPtr<StyleImage> ElementStyleResources::setOrPendingFromValue(CSSPropertyID property, CSSImageSetValue* value)
71 {
72 RefPtr<StyleImage> image = value->cachedOrPendingImageSet(m_deviceScaleFactor);
73 if (image && image->isPendingImage())
74 m_pendingImageProperties.set(property, value);
75 return image.release();
76 }
77
cachedOrPendingFromValue(CSSPropertyID property,CSSImageValue * value)78 PassRefPtr<StyleImage> ElementStyleResources::cachedOrPendingFromValue(CSSPropertyID property, CSSImageValue* value)
79 {
80 RefPtr<StyleImage> image = value->cachedOrPendingImage();
81 if (image && image->isPendingImage())
82 m_pendingImageProperties.set(property, value);
83 return image.release();
84 }
85
cursorOrPendingFromValue(CSSPropertyID property,CSSCursorImageValue * value)86 PassRefPtr<StyleImage> ElementStyleResources::cursorOrPendingFromValue(CSSPropertyID property, CSSCursorImageValue* value)
87 {
88 RefPtr<StyleImage> image = value->cachedOrPendingImage(m_deviceScaleFactor);
89 if (image && image->isPendingImage())
90 m_pendingImageProperties.set(property, value);
91 return image.release();
92 }
93
addPendingSVGDocument(FilterOperation * filterOperation,CSSSVGDocumentValue * cssSVGDocumentValue)94 void ElementStyleResources::addPendingSVGDocument(FilterOperation* filterOperation, CSSSVGDocumentValue* cssSVGDocumentValue)
95 {
96 m_pendingSVGDocuments.set(filterOperation, cssSVGDocumentValue);
97 }
98
99 }
100