/* -*- 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/HTMLTableCellElement.h"

#include "mozilla/dom/HTMLTableElement.h"

#include "mozilla/dom/HTMLTableRowElement.h"

#include "mozilla/MappedDeclarations.h"

#include "nsMappedAttributes.h"

#include "nsAttrValueInlines.h"

#include "celldata.h"

#include "mozilla/dom/HTMLTableCellElementBinding.h"

NS_IMPL_NS_NEW_HTML_ELEMENT(TableCell)

namespace mozilla {

namespace dom {

HTMLTableCellElement::~HTMLTableCellElement()

{

}

JSObject*

HTMLTableCellElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)

{

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

}

NS_IMPL_ELEMENT_CLONE(HTMLTableCellElement)

// protected method

HTMLTableRowElement*

HTMLTableCellElement::GetRow() const

{

  return HTMLTableRowElement::FromNodeOrNull(GetParent());

}

// protected method

HTMLTableElement*

HTMLTableCellElement::GetTable() const

{

  nsIContent *parent = GetParent();

  if (!parent) {

    return nullptr;

  }

  // parent should be a row.

  nsIContent* section = parent->GetParent();

  if (!section) {

    return nullptr;

  }

  if (section->IsHTMLElement(nsGkAtoms::table)) {

    // XHTML, without a row group.

    return static_cast<HTMLTableElement*>(section);

  }

  // We have a row group.

  nsIContent* result = section->GetParent();

  if (result && result->IsHTMLElement(nsGkAtoms::table)) {

    return static_cast<HTMLTableElement*>(result);

  }

  return nullptr;

}

int32_t

HTMLTableCellElement::CellIndex() const

{

  HTMLTableRowElement* row = GetRow();

  if (!row) {

    return -1;

  }

  nsIHTMLCollection* cells = row->Cells();

  if (!cells) {

    return -1;

  }

  uint32_t numCells = cells->Length();

  for (uint32_t i = 0; i < numCells; i++) {

    if (cells->Item(i) == this) {

      return i;

    }

  }

  return -1;

}

nsMappedAttributes*

HTMLTableCellElement::GetMappedAttributesInheritedFromTable() const

{

  if (HTMLTableElement* table = GetTable()) {

    return table->GetAttributesMappedForCell();

  }

  return nullptr;

}

void

HTMLTableCellElement::GetAlign(DOMString& aValue)

{

  if (!GetAttr(kNameSpaceID_None, nsGkAtoms::align, aValue)) {

    // There's no align attribute, ask the row for the alignment.

    HTMLTableRowElement* row = GetRow();

    if (row) {

      row->GetAlign(aValue);

    }

  }

}

static const nsAttrValue::EnumTable kCellScopeTable[] = {

  { "row",      NS_STYLE_CELL_SCOPE_ROW },

  { "col",      NS_STYLE_CELL_SCOPE_COL },

  { "rowgroup", NS_STYLE_CELL_SCOPE_ROWGROUP },

  { "colgroup", NS_STYLE_CELL_SCOPE_COLGROUP },

  { nullptr,    0 }

};

void

HTMLTableCellElement::GetScope(DOMString& aScope)

{

  GetEnumAttr(nsGkAtoms::scope, nullptr, aScope);

}

bool

HTMLTableCellElement::ParseAttribute(int32_t aNamespaceID,

                                     nsAtom* aAttribute,

                                     const nsAString& aValue,

                                     nsIPrincipal* aMaybeScriptedPrincipal,

                                     nsAttrValue& aResult)

{

  if (aNamespaceID == kNameSpaceID_None) {

    /* ignore these attributes, stored simply as strings

       abbr, axis, ch, headers

    */

    if (aAttribute == nsGkAtoms::charoff) {

      /* attributes that resolve to integers with a min of 0 */

      return aResult.ParseIntWithBounds(aValue, 0);

    }

    if (aAttribute == nsGkAtoms::colspan) {

      aResult.ParseClampedNonNegativeInt(aValue, 1, 1, MAX_COLSPAN);

      return true;

    }

    if (aAttribute == nsGkAtoms::rowspan) {

      aResult.ParseClampedNonNegativeInt(aValue, 1, 0, MAX_ROWSPAN);

      // quirks mode does not honor the special html 4 value of 0

      if (aResult.GetIntegerValue() == 0 && InNavQuirksMode(OwnerDoc())) {

        aResult.SetTo(1, &aValue);

      }

      return true;

    }

    if (aAttribute == nsGkAtoms::height) {

      return aResult.ParseSpecialIntValue(aValue);

    }

    if (aAttribute == nsGkAtoms::width) {

      return aResult.ParseSpecialIntValue(aValue);

    }

    if (aAttribute == nsGkAtoms::align) {

      return ParseTableCellHAlignValue(aValue, aResult);

    }

    if (aAttribute == nsGkAtoms::bgcolor) {

      return aResult.ParseColor(aValue);

    }

    if (aAttribute == nsGkAtoms::scope) {

      return aResult.ParseEnumValue(aValue, kCellScopeTable, false);

    }

    if (aAttribute == nsGkAtoms::valign) {

      return ParseTableVAlignValue(aValue, aResult);

    }

  }

  return nsGenericHTMLElement::ParseBackgroundAttribute(aNamespaceID,

                                                        aAttribute, aValue,

                                                        aResult) ||

         nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,

                                              aMaybeScriptedPrincipal, aResult);

}

void

HTMLTableCellElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,

                                            MappedDeclarations& aDecls)

{

  // width: value

  if (!aDecls.PropertyIsSet(eCSSProperty_width)) {

    const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);

    if (value && value->Type() == nsAttrValue::eInteger) {

      if (value->GetIntegerValue() > 0)

        aDecls.SetPixelValue(eCSSProperty_width, (float)value->GetIntegerValue());

      // else 0 implies auto for compatibility.

    }

    else if (value && value->Type() == nsAttrValue::ePercent) {

      if (value->GetPercentValue() > 0.0f)

        aDecls.SetPercentValue(eCSSProperty_width, value->GetPercentValue());

      // else 0 implies auto for compatibility

    }

  }

  // height: value

  if (!aDecls.PropertyIsSet(eCSSProperty_height)) {

    const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::height);

    if (value && value->Type() == nsAttrValue::eInteger) {

      if (value->GetIntegerValue() > 0)

        aDecls.SetPixelValue(eCSSProperty_height, (float)value->GetIntegerValue());

      // else 0 implies auto for compatibility.

    }

    else if (value && value->Type() == nsAttrValue::ePercent) {

      if (value->GetPercentValue() > 0.0f)

        aDecls.SetPercentValue(eCSSProperty_height, value->GetPercentValue());

      // else 0 implies auto for compatibility

    }

  }

  if (!aDecls.PropertyIsSet(eCSSProperty_white_space)) {

    // nowrap: enum

    if (aAttributes->GetAttr(nsGkAtoms::nowrap)) {

      // See if our width is not a nonzero integer width.

      const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);

      nsCompatibility mode = aDecls.Document()->GetCompatibilityMode();

      if (!value || value->Type() != nsAttrValue::eInteger ||

          value->GetIntegerValue() == 0 ||

          eCompatibility_NavQuirks != mode) {

        aDecls.SetKeywordValue(eCSSProperty_white_space, StyleWhiteSpace::Nowrap);

      }

    }

  }

  nsGenericHTMLElement::MapDivAlignAttributeInto(aAttributes, aDecls);

  nsGenericHTMLElement::MapVAlignAttributeInto(aAttributes, aDecls);

  nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aDecls);

  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);

}

NS_IMETHODIMP_(bool)

HTMLTableCellElement::IsAttributeMapped(const nsAtom* aAttribute) const

{

  static const MappedAttributeEntry attributes[] = {

    { &nsGkAtoms::align },

    { &nsGkAtoms::valign },

    { &nsGkAtoms::nowrap },

#if 0

    // XXXldb If these are implemented, they might need to move to

    // GetAttributeChangeHint (depending on how, and preferably not).

    { &nsGkAtoms::abbr },

    { &nsGkAtoms::axis },

    { &nsGkAtoms::headers },

    { &nsGkAtoms::scope },

#endif

    { &nsGkAtoms::width },

    { &nsGkAtoms::height },

    { nullptr }

  };

  static const MappedAttributeEntry* const map[] = {

    attributes,

    sCommonAttributeMap,

    sBackgroundAttributeMap,

  };

  return FindAttributeDependence(aAttribute, map);

}

nsMapRuleToAttributesFunc

HTMLTableCellElement::GetAttributeMappingFunction() const

{

  return &MapAttributesIntoRule;

}

} // namespace dom

} // namespace mozilla