1 /*
2 * Copyright (C) 2008 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "core/css/CSSMatrix.h"
28
29 #include "bindings/core/v8/ExceptionState.h"
30 #include "core/CSSPropertyNames.h"
31 #include "core/CSSValueKeywords.h"
32 #include "core/css/CSSToLengthConversionData.h"
33 #include "core/css/StylePropertySet.h"
34 #include "core/css/parser/CSSParser.h"
35 #include "core/css/resolver/TransformBuilder.h"
36 #include "core/dom/ExceptionCode.h"
37 #include "core/rendering/style/RenderStyle.h"
38 #include "core/rendering/style/StyleInheritedData.h"
39 #include "wtf/MathExtras.h"
40
41 namespace blink {
42
CSSMatrix(const TransformationMatrix & m)43 CSSMatrix::CSSMatrix(const TransformationMatrix& m)
44 : m_matrix(m)
45 {
46 }
47
CSSMatrix(const String & s,ExceptionState & exceptionState)48 CSSMatrix::CSSMatrix(const String& s, ExceptionState& exceptionState)
49 {
50 setMatrixValue(s, exceptionState);
51 }
52
setMatrixValue(const String & string,ExceptionState & exceptionState)53 void CSSMatrix::setMatrixValue(const String& string, ExceptionState& exceptionState)
54 {
55 if (string.isEmpty())
56 return;
57
58 // FIXME: crbug.com/154772 - should this continue to use legacy style parsing?
59 if (RefPtrWillBeRawPtr<CSSValue> value = CSSParser::parseSingleValue(CSSPropertyWebkitTransform, string)) {
60 // Check for a "none" transform. In these cases we can use the default identity matrix.
61 if (value->isPrimitiveValue() && (toCSSPrimitiveValue(value.get()))->getValueID() == CSSValueNone)
62 return;
63
64 // FIXME: This has a null pointer crash if we use ex units (crbug.com/414145)
65 DEFINE_STATIC_REF(RenderStyle, defaultStyle, RenderStyle::createDefaultStyle());
66 TransformOperations operations;
67 if (!TransformBuilder::createTransformOperations(value.get(), CSSToLengthConversionData(defaultStyle, defaultStyle, 0, 0, 1.0f), operations)) {
68 exceptionState.throwDOMException(SyntaxError, "Failed to interpret '" + string + "' as a transformation operation.");
69 return;
70 }
71
72 // Convert transform operations to a TransformationMatrix. This can fail
73 // if a param has a percentage ('%')
74 if (operations.dependsOnBoxSize())
75 exceptionState.throwDOMException(SyntaxError, "The transformation depends on the box size, which is not supported.");
76 TransformationMatrix t;
77 operations.apply(FloatSize(0, 0), t);
78
79 // set the matrix
80 m_matrix = t;
81 } else { // There is something there but parsing failed.
82 exceptionState.throwDOMException(SyntaxError, "Failed to parse '" + string + "'.");
83 }
84 }
85
86 // Perform a concatenation of the matrices (this * secondMatrix)
multiply(CSSMatrix * secondMatrix) const87 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::multiply(CSSMatrix* secondMatrix) const
88 {
89 if (!secondMatrix)
90 return nullptr;
91
92 return CSSMatrix::create(TransformationMatrix(m_matrix).multiply(secondMatrix->m_matrix));
93 }
94
inverse(ExceptionState & exceptionState) const95 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::inverse(ExceptionState& exceptionState) const
96 {
97 if (!m_matrix.isInvertible()) {
98 exceptionState.throwDOMException(NotSupportedError, "The matrix is not invertable.");
99 return nullptr;
100 }
101
102 return CSSMatrix::create(m_matrix.inverse());
103 }
104
translate(double x,double y,double z) const105 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::translate(double x, double y, double z) const
106 {
107 if (std::isnan(x))
108 x = 0;
109 if (std::isnan(y))
110 y = 0;
111 if (std::isnan(z))
112 z = 0;
113 return CSSMatrix::create(TransformationMatrix(m_matrix).translate3d(x, y, z));
114 }
115
scale(double scaleX,double scaleY,double scaleZ) const116 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::scale(double scaleX, double scaleY, double scaleZ) const
117 {
118 if (std::isnan(scaleX))
119 scaleX = 1;
120 if (std::isnan(scaleY))
121 scaleY = scaleX;
122 if (std::isnan(scaleZ))
123 scaleZ = 1;
124 return CSSMatrix::create(TransformationMatrix(m_matrix).scale3d(scaleX, scaleY, scaleZ));
125 }
126
rotate(double rotX,double rotY,double rotZ) const127 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::rotate(double rotX, double rotY, double rotZ) const
128 {
129 if (std::isnan(rotX))
130 rotX = 0;
131
132 if (std::isnan(rotY) && std::isnan(rotZ)) {
133 rotZ = rotX;
134 rotX = 0;
135 rotY = 0;
136 }
137
138 if (std::isnan(rotY))
139 rotY = 0;
140 if (std::isnan(rotZ))
141 rotZ = 0;
142 return CSSMatrix::create(TransformationMatrix(m_matrix).rotate3d(rotX, rotY, rotZ));
143 }
144
rotateAxisAngle(double x,double y,double z,double angle) const145 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::rotateAxisAngle(double x, double y, double z, double angle) const
146 {
147 if (std::isnan(x))
148 x = 0;
149 if (std::isnan(y))
150 y = 0;
151 if (std::isnan(z))
152 z = 0;
153 if (std::isnan(angle))
154 angle = 0;
155 if (!x && !y && !z)
156 z = 1;
157 return CSSMatrix::create(TransformationMatrix(m_matrix).rotate3d(x, y, z, angle));
158 }
159
skewX(double angle) const160 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::skewX(double angle) const
161 {
162 if (std::isnan(angle))
163 angle = 0;
164 return CSSMatrix::create(TransformationMatrix(m_matrix).skewX(angle));
165 }
166
skewY(double angle) const167 PassRefPtrWillBeRawPtr<CSSMatrix> CSSMatrix::skewY(double angle) const
168 {
169 if (std::isnan(angle))
170 angle = 0;
171 return CSSMatrix::create(TransformationMatrix(m_matrix).skewY(angle));
172 }
173
toString() const174 String CSSMatrix::toString() const
175 {
176 // FIXME - Need to ensure valid CSS floating point values (https://bugs.webkit.org/show_bug.cgi?id=20674)
177 if (m_matrix.isAffine())
178 return String::format("matrix(%f, %f, %f, %f, %f, %f)", m_matrix.a(), m_matrix.b(), m_matrix.c(), m_matrix.d(), m_matrix.e(), m_matrix.f());
179 return String::format("matrix3d(%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f)",
180 m_matrix.m11(), m_matrix.m12(), m_matrix.m13(), m_matrix.m14(),
181 m_matrix.m21(), m_matrix.m22(), m_matrix.m23(), m_matrix.m24(),
182 m_matrix.m31(), m_matrix.m32(), m_matrix.m33(), m_matrix.m34(),
183 m_matrix.m41(), m_matrix.m42(), m_matrix.m43(), m_matrix.m44());
184 }
185
186 } // namespace blink
187