DXR will be turned off on Tuesday, December 29th. It will redirect to Searchfox.
See the announcement on Discourse.

DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (c68fe15a81fc)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* -*- 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 "HTMLMeterElement.h"
#include "mozilla/EventStates.h"
#include "mozilla/dom/HTMLMeterElementBinding.h"

NS_IMPL_NS_NEW_HTML_ELEMENT(Meter)

namespace mozilla {
namespace mozilla {
namespace dom {

const double HTMLMeterElement::kDefaultValue = 0.0;
const double HTMLMeterElement::kDefaultMin = 0.0;
const double HTMLMeterElement::kDefaultMax = 1.0;
const double HTMLMeterElement::kDefaultMax = 1.0;

HTMLMeterElement::HTMLMeterElement(
    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
    : nsGenericHTMLElement(std::move(aNodeInfo)) {}


HTMLMeterElement::~HTMLMeterElement() = default;

NS_IMPL_ELEMENT_CLONE(HTMLMeterElement)
NS_IMPL_ELEMENT_CLONE(HTMLMeterElement)

EventStates HTMLMeterElement::IntrinsicState() const {
  EventStates state = nsGenericHTMLElement::IntrinsicState();

  state |= GetOptimumState();
  state |= GetOptimumState();

  return state;
}

bool HTMLMeterElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
bool HTMLMeterElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
                                      const nsAString& aValue,
                                      nsIPrincipal* aMaybeScriptedPrincipal,
                                      nsAttrValue& aResult) {
  if (aNamespaceID == kNameSpaceID_None) {
    if (aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::max ||
    if (aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::max ||
        aAttribute == nsGkAtoms::min || aAttribute == nsGkAtoms::low ||
        aAttribute == nsGkAtoms::high || aAttribute == nsGkAtoms::optimum) {
      return aResult.ParseDoubleValue(aValue);
    }
  }
  }

  return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
                                              aMaybeScriptedPrincipal, aResult);
}

/*
/*
 * Value getters :
 * const getters used by XPCOM methods and by IntrinsicState
 * const getters used by XPCOM methods and by IntrinsicState
 */

double HTMLMeterElement::Min() const {
  /**
   * If the attribute min is defined, the minimum is this value.
   * If the attribute min is defined, the minimum is this value.
   * Otherwise, the minimum is the default value.
   */
  const nsAttrValue* attrMin = mAttrs.GetAttr(nsGkAtoms::min);
  if (attrMin && attrMin->Type() == nsAttrValue::eDoubleValue) {
    return attrMin->GetDoubleValue();
    return attrMin->GetDoubleValue();
  }
  return kDefaultMin;
}

double HTMLMeterElement::Max() const {
double HTMLMeterElement::Max() const {
  /**
   * If the attribute max is defined, the maximum is this value.
   * Otherwise, the maximum is the default value.
   * If the maximum value is less than the minimum value,
   * If the maximum value is less than the minimum value,
   * the maximum value is the same as the minimum value.
   */
  double max;

  const nsAttrValue* attrMax = mAttrs.GetAttr(nsGkAtoms::max);
  const nsAttrValue* attrMax = mAttrs.GetAttr(nsGkAtoms::max);
  if (attrMax && attrMax->Type() == nsAttrValue::eDoubleValue) {
    max = attrMax->GetDoubleValue();
  } else {
    max = kDefaultMax;
  }
  }

  return std::max(max, Min());
}

double HTMLMeterElement::Value() const {
double HTMLMeterElement::Value() const {
  /**
   * If the attribute value is defined, the actual value is this value.
   * Otherwise, the actual value is the default value.
   * If the actual value is less than the minimum value,
   * the actual value is the same as the minimum value.
   * the actual value is the same as the minimum value.
   * If the actual value is greater than the maximum value,
   * the actual value is the same as the maximum value.
   */
  double value;


  const nsAttrValue* attrValue = mAttrs.GetAttr(nsGkAtoms::value);
  if (attrValue && attrValue->Type() == nsAttrValue::eDoubleValue) {
    value = attrValue->GetDoubleValue();
  } else {
    value = kDefaultValue;
    value = kDefaultValue;
  }

  double min = Min();

  if (value <= min) {
    return min;
  }

  return std::min(value, Max());
  return std::min(value, Max());
}

double HTMLMeterElement::Low() const {
  /**
  /**
   * If the low value is defined, the low value is this value.
   * Otherwise, the low value is the minimum value.
   * If the low value is less than the minimum value,
   * the low value is the same as the minimum value.
   * If the low value is greater than the maximum value,
   * If the low value is greater than the maximum value,
   * the low value is the same as the maximum value.
   */

  double min = Min();


  const nsAttrValue* attrLow = mAttrs.GetAttr(nsGkAtoms::low);
  if (!attrLow || attrLow->Type() != nsAttrValue::eDoubleValue) {
    return min;
  }


  double low = attrLow->GetDoubleValue();

  if (low <= min) {
    return min;
  }

  return std::min(low, Max());
}


double HTMLMeterElement::High() const {
  /**
   * If the high value is defined, the high value is this value.
   * Otherwise, the high value is the maximum value.
   * If the high value is less than the low value,
   * If the high value is less than the low value,
   * the high value is the same as the low value.
   * If the high value is greater than the maximum value,
   * the high value is the same as the maximum value.
   */

  double max = Max();


  const nsAttrValue* attrHigh = mAttrs.GetAttr(nsGkAtoms::high);
  if (!attrHigh || attrHigh->Type() != nsAttrValue::eDoubleValue) {
    return max;
  }


  double high = attrHigh->GetDoubleValue();

  if (high >= max) {
    return max;
  }
  }

  return std::max(high, Low());
}

double HTMLMeterElement::Optimum() const {
double HTMLMeterElement::Optimum() const {
  /**
   * If the optimum value is defined, the optimum value is this value.
   * Otherwise, the optimum value is the midpoint between
   * the minimum value and the maximum value :
   * min + (max - min)/2 = (min + max)/2
   * min + (max - min)/2 = (min + max)/2
   * If the optimum value is less than the minimum value,
   * the optimum value is the same as the minimum value.
   * If the optimum value is greater than the maximum value,
   * the optimum value is the same as the maximum value.
   */
   */

  double max = Max();

  double min = Min();


  const nsAttrValue* attrOptimum = mAttrs.GetAttr(nsGkAtoms::optimum);
  if (!attrOptimum || attrOptimum->Type() != nsAttrValue::eDoubleValue) {
    return (min + max) / 2.0;
  }

  double optimum = attrOptimum->GetDoubleValue();

  if (optimum <= min) {
    return min;
  }

  return std::min(optimum, max);
  return std::min(optimum, max);
}

EventStates HTMLMeterElement::GetOptimumState() const {
  /*
   * If the optimum value is in [minimum, low[,
   * If the optimum value is in [minimum, low[,
   *     return if the value is in optimal, suboptimal or sub-suboptimal region
   *
   * If the optimum value is in [low, high],
   *     return if the value is in optimal or suboptimal region
   *
   *
   * If the optimum value is in ]high, maximum],
   *     return if the value is in optimal, suboptimal or sub-suboptimal region
   */
  double value = Value();
  double low = Low();
  double low = Low();
  double high = High();
  double optimum = Optimum();

  if (optimum < low) {
  if (optimum < low) {
    if (value < low) {
      return NS_EVENT_STATE_OPTIMUM;
    }
    if (value <= high) {
      return NS_EVENT_STATE_SUB_OPTIMUM;
      return NS_EVENT_STATE_SUB_OPTIMUM;
    }
    return NS_EVENT_STATE_SUB_SUB_OPTIMUM;
  }
  if (optimum > high) {
  if (optimum > high) {
    if (value > high) {
      return NS_EVENT_STATE_OPTIMUM;
    }
    if (value >= low) {
      return NS_EVENT_STATE_SUB_OPTIMUM;
      return NS_EVENT_STATE_SUB_OPTIMUM;
    }
    return NS_EVENT_STATE_SUB_SUB_OPTIMUM;
  }
  // optimum in [low, high]
  if (value >= low && value <= high) {
  if (value >= low && value <= high) {
    return NS_EVENT_STATE_OPTIMUM;
  }
  return NS_EVENT_STATE_SUB_OPTIMUM;
}


JSObject* HTMLMeterElement::WrapNode(JSContext* aCx,
                                     JS::Handle<JSObject*> aGivenProto) {
  return HTMLMeterElement_Binding::Wrap(aCx, this, aGivenProto);
}
}

}  // namespace dom
}  // namespace mozilla