blob: c2501416a670dac4bacaab2527e657f50cd96c62 [file] [log] [blame]
// Copyright 2019 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cobalt/cssom/cobalt_ui_nav_focus_transform_function.h"
#include "cobalt/cssom/transform_function_visitor.h"
#include "cobalt/math/matrix_interpolation.h"
namespace cobalt {
namespace cssom {
CobaltUiNavFocusTransformFunction::CobaltUiNavFocusTransformFunction(
float progress_to_identity)
: progress_to_identity_(progress_to_identity) {
traits_ = kTraitIsDynamic | kTraitUsesUiNavFocus;
}
void CobaltUiNavFocusTransformFunction::Accept(
TransformFunctionVisitor* visitor) const {
visitor->VisitCobaltUiNavFocusTransform(this);
}
std::string CobaltUiNavFocusTransformFunction::ToString() const {
return "-cobalt-ui-nav-focus-transform()";
}
math::Matrix3F CobaltUiNavFocusTransformFunction::ToMatrix(
const math::SizeF& used_size,
const scoped_refptr<ui_navigation::NavItem>& used_ui_nav_focus) const {
ui_navigation::NativeMatrix4 matrix;
if (used_ui_nav_focus &&
used_ui_nav_focus->GetFocusTransform(&matrix)) {
return math::InterpolateMatrices(
math::Matrix3F::FromValues(
matrix.m[ 0], matrix.m[ 1], matrix.m[ 3],
matrix.m[ 4], matrix.m[ 5], matrix.m[ 7],
matrix.m[12], matrix.m[13], matrix.m[15]),
math::Matrix3F::Identity(),
progress_to_identity_);
}
return math::Matrix3F::Identity();
}
} // namespace cssom
} // namespace cobalt