| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef StyleBuilderCustom_h |
| #define StyleBuilderCustom_h |
| |
| #include "core/css/CSSValue.h" |
| #include "core/css/resolver/StyleResolverState.h" |
| #include "core/platform/LengthSize.h" |
| #include "core/svg/SVGLength.h" |
| |
| namespace WebCore { |
| |
| // Note that we assume the parser only allows valid CSSValue types. |
| |
| class StyleBuilderConverter { |
| public: |
| template <typename T> static T convertComputedLength(StyleResolverState&, CSSValue*); |
| template <typename T> static T convertLineWidth(StyleResolverState&, CSSValue*); |
| static Length convertLength(StyleResolverState&, CSSValue*); |
| static Length convertLengthOrAuto(StyleResolverState&, CSSValue*); |
| static Length convertLengthSizing(StyleResolverState&, CSSValue*); |
| static Length convertLengthMaxSizing(StyleResolverState&, CSSValue*); |
| static LengthPoint convertLengthPoint(StyleResolverState&, CSSValue*); |
| static LengthSize convertRadius(StyleResolverState&, CSSValue*); |
| static float convertSpacing(StyleResolverState&, CSSValue*); |
| template <CSSValueID IdForNone> static AtomicString convertString(StyleResolverState&, CSSValue*); |
| }; |
| |
| template <typename T> |
| T StyleBuilderConverter::convertComputedLength(StyleResolverState& state, CSSValue* value) |
| { |
| float zoom = state.style()->effectiveZoom(); |
| return toCSSPrimitiveValue(value)->computeLength<T>(state.style(), state.rootElementStyle(), zoom); |
| } |
| |
| template <typename T> |
| T StyleBuilderConverter::convertLineWidth(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| CSSValueID valueID = primitiveValue->getValueID(); |
| if (valueID == CSSValueThin) |
| return 1; |
| if (valueID == CSSValueMedium) |
| return 3; |
| if (valueID == CSSValueThick) |
| return 5; |
| if (primitiveValue->isViewportPercentageLength()) |
| return intValueForLength(primitiveValue->viewportPercentageLength(), 0, state.document().renderView()); |
| if (valueID == CSSValueInvalid) { |
| float zoom = state.style()->effectiveZoom(); |
| // Any original result that was >= 1 should not be allowed to fall below 1. |
| // This keeps border lines from vanishing. |
| T result = primitiveValue->computeLength<T>(state.style(), state.rootElementStyle(), zoom); |
| if (zoom < 1.0f && result < 1.0) { |
| T originalLength = primitiveValue->computeLength<T>(state.style(), state.rootElementStyle(), 1.0); |
| if (originalLength >= 1.0) |
| return 1.0; |
| } |
| return result; |
| } |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| |
| template <CSSValueID IdForNone> |
| AtomicString StyleBuilderConverter::convertString(StyleResolverState&, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| if (primitiveValue->getValueID() == IdForNone) |
| return nullAtom; |
| return primitiveValue->getStringValue(); |
| } |
| |
| } // namespace WebCore |
| |
| #endif |