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| 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 "core/css/CSSMatrix.h" | |
| 27 | |
| 28 #include "bindings/core/v8/ExceptionState.h" | |
| 29 #include "core/CSSPropertyNames.h" | |
| 30 #include "core/CSSValueKeywords.h" | |
| 31 #include "core/css/CSSIdentifierValue.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/frame/UseCounter.h" | |
| 38 #include "core/layout/api/LayoutViewItem.h" | |
| 39 #include "core/style/ComputedStyle.h" | |
| 40 #include "platform/wtf/MathExtras.h" | |
| 41 | |
| 42 namespace blink { | |
| 43 | |
| 44 CSSMatrix* CSSMatrix::Create(ExecutionContext* execution_context, | |
| 45 const String& s, | |
| 46 ExceptionState& exception_state) { | |
| 47 UseCounter::Count(execution_context, UseCounter::kWebKitCSSMatrix); | |
| 48 if (!s.IsEmpty()) { | |
| 49 UseCounter::Count(execution_context, | |
| 50 UseCounter::kWebkitCSSMatrixConstructFromString); | |
| 51 } | |
| 52 return new CSSMatrix(s, exception_state); | |
| 53 } | |
| 54 | |
| 55 CSSMatrix::CSSMatrix(const TransformationMatrix& m) | |
| 56 : matrix_(TransformationMatrix::Create(m)) {} | |
| 57 | |
| 58 CSSMatrix::CSSMatrix(const String& s, ExceptionState& exception_state) | |
| 59 : matrix_(TransformationMatrix::Create()) { | |
| 60 setMatrixValue(s, exception_state); | |
| 61 } | |
| 62 | |
| 63 static inline PassRefPtr<ComputedStyle> CreateInitialStyle() { | |
| 64 RefPtr<ComputedStyle> initial_style = ComputedStyle::Create(); | |
| 65 initial_style->GetFont().Update(nullptr); | |
| 66 return initial_style; | |
| 67 } | |
| 68 | |
| 69 void CSSMatrix::setMatrixValue(const String& string, | |
| 70 ExceptionState& exception_state) { | |
| 71 if (string.IsEmpty()) | |
| 72 return; | |
| 73 | |
| 74 if (const CSSValue* value = | |
| 75 CSSParser::ParseSingleValue(CSSPropertyTransform, string)) { | |
| 76 // Check for a "none" transform. In these cases we can use the default | |
| 77 // identity matrix. | |
| 78 if (value->IsIdentifierValue() && | |
| 79 (ToCSSIdentifierValue(value))->GetValueID() == CSSValueNone) | |
| 80 return; | |
| 81 | |
| 82 DEFINE_STATIC_REF(ComputedStyle, initial_style, CreateInitialStyle()); | |
| 83 TransformOperations operations = | |
| 84 TransformBuilder::CreateTransformOperations( | |
| 85 *value, CSSToLengthConversionData(initial_style, initial_style, | |
| 86 LayoutViewItem(nullptr), 1.0f)); | |
| 87 | |
| 88 // Convert transform operations to a TransformationMatrix. This can fail | |
| 89 // if a param has a percentage ('%') | |
| 90 if (operations.DependsOnBoxSize()) | |
| 91 exception_state.ThrowDOMException(kSyntaxError, | |
| 92 "The transformation depends on the box " | |
| 93 "size, which is not supported."); | |
| 94 matrix_ = TransformationMatrix::Create(); | |
| 95 operations.Apply(FloatSize(0, 0), *matrix_); | |
| 96 } else { // There is something there but parsing failed. | |
| 97 exception_state.ThrowDOMException(kSyntaxError, | |
| 98 "Failed to parse '" + string + "'."); | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 // Perform a concatenation of the matrices (this * secondMatrix) | |
| 103 CSSMatrix* CSSMatrix::multiply(CSSMatrix* second_matrix) const { | |
| 104 if (!second_matrix) | |
| 105 return nullptr; | |
| 106 | |
| 107 return CSSMatrix::Create( | |
| 108 TransformationMatrix(*matrix_).Multiply(*second_matrix->matrix_)); | |
| 109 } | |
| 110 | |
| 111 CSSMatrix* CSSMatrix::inverse(ExceptionState& exception_state) const { | |
| 112 if (!matrix_->IsInvertible()) { | |
| 113 exception_state.ThrowDOMException(kNotSupportedError, | |
| 114 "The matrix is not invertable."); | |
| 115 return nullptr; | |
| 116 } | |
| 117 | |
| 118 return CSSMatrix::Create(matrix_->Inverse()); | |
| 119 } | |
| 120 | |
| 121 CSSMatrix* CSSMatrix::translate(double x, double y, double z) const { | |
| 122 if (std::isnan(x)) | |
| 123 x = 0; | |
| 124 if (std::isnan(y)) | |
| 125 y = 0; | |
| 126 if (std::isnan(z)) | |
| 127 z = 0; | |
| 128 return CSSMatrix::Create(TransformationMatrix(*matrix_).Translate3d(x, y, z)); | |
| 129 } | |
| 130 | |
| 131 CSSMatrix* CSSMatrix::scale(double scale_x, | |
| 132 double scale_y, | |
| 133 double scale_z) const { | |
| 134 if (std::isnan(scale_x)) | |
| 135 scale_x = 1; | |
| 136 if (std::isnan(scale_y)) | |
| 137 scale_y = scale_x; | |
| 138 if (std::isnan(scale_z)) | |
| 139 scale_z = 1; | |
| 140 return CSSMatrix::Create( | |
| 141 TransformationMatrix(*matrix_).Scale3d(scale_x, scale_y, scale_z)); | |
| 142 } | |
| 143 | |
| 144 CSSMatrix* CSSMatrix::rotate(double rot_x, double rot_y, double rot_z) const { | |
| 145 if (std::isnan(rot_x)) | |
| 146 rot_x = 0; | |
| 147 | |
| 148 if (std::isnan(rot_y) && std::isnan(rot_z)) { | |
| 149 rot_z = rot_x; | |
| 150 rot_x = 0; | |
| 151 rot_y = 0; | |
| 152 } | |
| 153 | |
| 154 if (std::isnan(rot_y)) | |
| 155 rot_y = 0; | |
| 156 if (std::isnan(rot_z)) | |
| 157 rot_z = 0; | |
| 158 return CSSMatrix::Create( | |
| 159 TransformationMatrix(*matrix_).Rotate3d(rot_x, rot_y, rot_z)); | |
| 160 } | |
| 161 | |
| 162 CSSMatrix* CSSMatrix::rotateAxisAngle(double x, | |
| 163 double y, | |
| 164 double z, | |
| 165 double angle) const { | |
| 166 if (std::isnan(x)) | |
| 167 x = 0; | |
| 168 if (std::isnan(y)) | |
| 169 y = 0; | |
| 170 if (std::isnan(z)) | |
| 171 z = 0; | |
| 172 if (std::isnan(angle)) | |
| 173 angle = 0; | |
| 174 if (!x && !y && !z) | |
| 175 z = 1; | |
| 176 return CSSMatrix::Create( | |
| 177 TransformationMatrix(*matrix_).Rotate3d(x, y, z, angle)); | |
| 178 } | |
| 179 | |
| 180 CSSMatrix* CSSMatrix::skewX(double angle) const { | |
| 181 if (std::isnan(angle)) | |
| 182 angle = 0; | |
| 183 return CSSMatrix::Create(TransformationMatrix(*matrix_).SkewX(angle)); | |
| 184 } | |
| 185 | |
| 186 CSSMatrix* CSSMatrix::skewY(double angle) const { | |
| 187 if (std::isnan(angle)) | |
| 188 angle = 0; | |
| 189 return CSSMatrix::Create(TransformationMatrix(*matrix_).SkewY(angle)); | |
| 190 } | |
| 191 | |
| 192 String CSSMatrix::toString() const { | |
| 193 // FIXME - Need to ensure valid CSS floating point values | |
| 194 // (https://bugs.webkit.org/show_bug.cgi?id=20674) | |
| 195 if (matrix_->IsAffine()) | |
| 196 return String::Format("matrix(%g, %g, %g, %g, %g, %g)", matrix_->A(), | |
| 197 matrix_->B(), matrix_->C(), matrix_->D(), | |
| 198 matrix_->E(), matrix_->F()); | |
| 199 return String::Format( | |
| 200 "matrix3d(%g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, " | |
| 201 "%g)", | |
| 202 matrix_->M11(), matrix_->M12(), matrix_->M13(), matrix_->M14(), | |
| 203 matrix_->M21(), matrix_->M22(), matrix_->M23(), matrix_->M24(), | |
| 204 matrix_->M31(), matrix_->M32(), matrix_->M33(), matrix_->M34(), | |
| 205 matrix_->M41(), matrix_->M42(), matrix_->M43(), matrix_->M44()); | |
| 206 } | |
| 207 | |
| 208 } // namespace blink | |
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Chromium Code Reviews
Issue 2709763004:
Make WebKitCSSMatrix an alias of DOMMatrix (Closed)
