/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/dom/CSSMozDocumentRule.h"

#include "mozilla/dom/CSSMozDocumentRuleBinding.h"

#include "mozilla/ServoBindings.h"

#include "nsContentUtils.h"

namespace mozilla {

namespace dom {

using namespace mozilla::css;

/* virtual */ JSObject*

CSSMozDocumentRule::WrapObject(JSContext* aCx,

                               JS::Handle<JSObject*> aGivenProto)

{

  return CSSMozDocumentRule_Binding::Wrap(aCx, this, aGivenProto);

}

bool

CSSMozDocumentRule::Match(nsIDocument* aDoc,

                          nsIURI* aDocURI,

                          const nsACString& aDocURISpec,

                          const nsACString& aPattern,

                          DocumentMatchingFunction aMatchingFunction)

{

  switch (aMatchingFunction) {

    case DocumentMatchingFunction::MediaDocument: {

      auto kind = aDoc->MediaDocumentKind();

      if (aPattern.EqualsLiteral("all")) {

        return kind != nsIDocument::MediaDocumentKind::NotMedia;

      }

      MOZ_ASSERT(aPattern.EqualsLiteral("plugin") ||

                 aPattern.EqualsLiteral("image") ||

                 aPattern.EqualsLiteral("video"));

      switch (kind) {

        case nsIDocument::MediaDocumentKind::NotMedia:

          return false;

        case nsIDocument::MediaDocumentKind::Plugin:

          return aPattern.EqualsLiteral("plugin");

        case nsIDocument::MediaDocumentKind::Image:

          return aPattern.EqualsLiteral("image");

        case nsIDocument::MediaDocumentKind::Video:

          return aPattern.EqualsLiteral("video");

      }

      MOZ_ASSERT_UNREACHABLE("Unknown media document kind");

      return false;

    }

    case DocumentMatchingFunction::URL:

      return aDocURISpec == aPattern;

    case DocumentMatchingFunction::URLPrefix:

      return StringBeginsWith(aDocURISpec, aPattern);

    case DocumentMatchingFunction::Domain: {

      nsAutoCString host;

      if (aDocURI) {

        aDocURI->GetHost(host);

      }

      int32_t lenDiff = host.Length() - aPattern.Length();

      if (lenDiff == 0) {

        return host == aPattern;

      }

      return StringEndsWith(host, aPattern) && host.CharAt(lenDiff - 1) == '.';

    }

    case DocumentMatchingFunction::RegExp: {

      NS_ConvertUTF8toUTF16 spec(aDocURISpec);

      NS_ConvertUTF8toUTF16 regex(aPattern);

      return nsContentUtils::IsPatternMatching(spec, regex, aDoc);

    }

  }

  MOZ_ASSERT_UNREACHABLE("Unknown matching function");

  return false;

}

CSSMozDocumentRule::CSSMozDocumentRule(RefPtr<RawServoMozDocumentRule> aRawRule,

                                       StyleSheet* aSheet,

                                       css::Rule* aParentRule,

                                       uint32_t aLine,

                                       uint32_t aColumn)

  : css::ConditionRule(Servo_MozDocumentRule_GetRules(aRawRule).Consume(),

                       aSheet, aParentRule, aLine, aColumn)

  , mRawRule(std::move(aRawRule))

{

}

NS_IMPL_ADDREF_INHERITED(CSSMozDocumentRule, css::ConditionRule)

NS_IMPL_RELEASE_INHERITED(CSSMozDocumentRule, css::ConditionRule)

// QueryInterface implementation for MozDocumentRule

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSMozDocumentRule)

NS_INTERFACE_MAP_END_INHERITING(css::ConditionRule)

#ifdef DEBUG

/* virtual */ void

CSSMozDocumentRule::List(FILE* out, int32_t aIndent) const

{

  nsAutoCString str;

  for (int32_t i = 0; i < aIndent; i++) {

    str.AppendLiteral("  ");

  }

  Servo_MozDocumentRule_Debug(mRawRule, &str);

  fprintf_stderr(out, "%s\n", str.get());

}

#endif

void

CSSMozDocumentRule::GetConditionText(nsAString& aConditionText)

{

  Servo_MozDocumentRule_GetConditionText(mRawRule, &aConditionText);

}

void

CSSMozDocumentRule::SetConditionText(const nsAString& aConditionText,

                                     ErrorResult& aRv)

{

  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);

}

/* virtual */ void

CSSMozDocumentRule::GetCssText(nsAString& aCssText) const

{

  Servo_MozDocumentRule_GetCssText(mRawRule, &aCssText);

}

/* virtual */ size_t

CSSMozDocumentRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const

{

  // TODO Implement this!

  return aMallocSizeOf(this);

}

} // namespace dom

} // namespace mozilla