зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
3.1 KiB
C++
103 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AnimationUtils.h"
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#include "nsCSSParser.h" // For nsCSSParser
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#include "nsDebug.h"
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#include "nsIAtom.h"
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#include "nsIContent.h"
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#include "nsString.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ComputedTimingFunction.h" // ComputedTimingFunction
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#include "mozilla/dom/Element.h" // For dom::Element
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namespace mozilla {
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/* static */ void
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AnimationUtils::LogAsyncAnimationFailure(nsCString& aMessage,
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const nsIContent* aContent)
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{
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if (aContent) {
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aMessage.AppendLiteral(" [");
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aMessage.Append(nsAtomCString(aContent->NodeInfo()->NameAtom()));
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nsIAtom* id = aContent->GetID();
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if (id) {
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aMessage.AppendLiteral(" with id '");
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aMessage.Append(nsAtomCString(aContent->GetID()));
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aMessage.Append('\'');
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}
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aMessage.Append(']');
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}
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aMessage.Append('\n');
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printf_stderr("%s", aMessage.get());
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}
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/* static */ Maybe<ComputedTimingFunction>
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AnimationUtils::ParseEasing(const dom::Element* aTarget,
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const nsAString& aEasing)
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{
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if (!aTarget) {
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return Nothing();
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}
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nsIDocument* doc = aTarget->OwnerDoc();
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nsCSSValue value;
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nsCSSParser parser;
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parser.ParseLonghandProperty(eCSSProperty_animation_timing_function,
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aEasing,
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doc->GetDocumentURI(),
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doc->GetDocumentURI(),
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doc->NodePrincipal(),
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value);
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switch (value.GetUnit()) {
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case eCSSUnit_List: {
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const nsCSSValueList* list = value.GetListValue();
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if (list->mNext) {
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// don't support a list of timing functions
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break;
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}
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switch (list->mValue.GetUnit()) {
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case eCSSUnit_Enumerated:
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// Return Nothing() if "linear" is passed in.
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if (list->mValue.GetIntValue() ==
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NS_STYLE_TRANSITION_TIMING_FUNCTION_LINEAR) {
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return Nothing();
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}
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MOZ_FALLTHROUGH;
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case eCSSUnit_Cubic_Bezier:
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case eCSSUnit_Steps: {
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nsTimingFunction timingFunction;
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nsRuleNode::ComputeTimingFunction(list->mValue, timingFunction);
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ComputedTimingFunction computedTimingFunction;
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computedTimingFunction.Init(timingFunction);
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return Some(computedTimingFunction);
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}
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default:
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MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function list "
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"item unit");
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break;
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}
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break;
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}
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case eCSSUnit_Null:
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case eCSSUnit_Inherit:
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case eCSSUnit_Initial:
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case eCSSUnit_Unset:
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case eCSSUnit_TokenStream:
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function unit");
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break;
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}
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return Nothing();
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}
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} // namespace mozilla
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