Screen.js 5.1 KB

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  1. "use strict";
  2. const conversions = require("webidl-conversions");
  3. const utils = require("./utils.js");
  4. const implSymbol = utils.implSymbol;
  5. const ctorRegistrySymbol = utils.ctorRegistrySymbol;
  6. const interfaceName = "Screen";
  7. exports.is = value => {
  8. return utils.isObject(value) && Object.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation;
  9. };
  10. exports.isImpl = value => {
  11. return utils.isObject(value) && value instanceof Impl.implementation;
  12. };
  13. exports.convert = (globalObject, value, { context = "The provided value" } = {}) => {
  14. if (exports.is(value)) {
  15. return utils.implForWrapper(value);
  16. }
  17. throw new globalObject.TypeError(`${context} is not of type 'Screen'.`);
  18. };
  19. function makeWrapper(globalObject, newTarget) {
  20. let proto;
  21. if (newTarget !== undefined) {
  22. proto = newTarget.prototype;
  23. }
  24. if (!utils.isObject(proto)) {
  25. proto = globalObject[ctorRegistrySymbol]["Screen"].prototype;
  26. }
  27. return Object.create(proto);
  28. }
  29. exports.create = (globalObject, constructorArgs, privateData) => {
  30. const wrapper = makeWrapper(globalObject);
  31. return exports.setup(wrapper, globalObject, constructorArgs, privateData);
  32. };
  33. exports.createImpl = (globalObject, constructorArgs, privateData) => {
  34. const wrapper = exports.create(globalObject, constructorArgs, privateData);
  35. return utils.implForWrapper(wrapper);
  36. };
  37. exports._internalSetup = (wrapper, globalObject) => {};
  38. exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => {
  39. privateData.wrapper = wrapper;
  40. exports._internalSetup(wrapper, globalObject);
  41. Object.defineProperty(wrapper, implSymbol, {
  42. value: new Impl.implementation(globalObject, constructorArgs, privateData),
  43. configurable: true
  44. });
  45. wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
  46. if (Impl.init) {
  47. Impl.init(wrapper[implSymbol]);
  48. }
  49. return wrapper;
  50. };
  51. exports.new = (globalObject, newTarget) => {
  52. const wrapper = makeWrapper(globalObject, newTarget);
  53. exports._internalSetup(wrapper, globalObject);
  54. Object.defineProperty(wrapper, implSymbol, {
  55. value: Object.create(Impl.implementation.prototype),
  56. configurable: true
  57. });
  58. wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
  59. if (Impl.init) {
  60. Impl.init(wrapper[implSymbol]);
  61. }
  62. return wrapper[implSymbol];
  63. };
  64. const exposed = new Set(["Window"]);
  65. exports.install = (globalObject, globalNames) => {
  66. if (!globalNames.some(globalName => exposed.has(globalName))) {
  67. return;
  68. }
  69. const ctorRegistry = utils.initCtorRegistry(globalObject);
  70. class Screen {
  71. constructor() {
  72. throw new globalObject.TypeError("Illegal constructor");
  73. }
  74. get availWidth() {
  75. const esValue = this !== null && this !== undefined ? this : globalObject;
  76. if (!exports.is(esValue)) {
  77. throw new globalObject.TypeError(
  78. "'get availWidth' called on an object that is not a valid instance of Screen."
  79. );
  80. }
  81. return esValue[implSymbol]["availWidth"];
  82. }
  83. get availHeight() {
  84. const esValue = this !== null && this !== undefined ? this : globalObject;
  85. if (!exports.is(esValue)) {
  86. throw new globalObject.TypeError(
  87. "'get availHeight' called on an object that is not a valid instance of Screen."
  88. );
  89. }
  90. return esValue[implSymbol]["availHeight"];
  91. }
  92. get width() {
  93. const esValue = this !== null && this !== undefined ? this : globalObject;
  94. if (!exports.is(esValue)) {
  95. throw new globalObject.TypeError("'get width' called on an object that is not a valid instance of Screen.");
  96. }
  97. return esValue[implSymbol]["width"];
  98. }
  99. get height() {
  100. const esValue = this !== null && this !== undefined ? this : globalObject;
  101. if (!exports.is(esValue)) {
  102. throw new globalObject.TypeError("'get height' called on an object that is not a valid instance of Screen.");
  103. }
  104. return esValue[implSymbol]["height"];
  105. }
  106. get colorDepth() {
  107. const esValue = this !== null && this !== undefined ? this : globalObject;
  108. if (!exports.is(esValue)) {
  109. throw new globalObject.TypeError(
  110. "'get colorDepth' called on an object that is not a valid instance of Screen."
  111. );
  112. }
  113. return esValue[implSymbol]["colorDepth"];
  114. }
  115. get pixelDepth() {
  116. const esValue = this !== null && this !== undefined ? this : globalObject;
  117. if (!exports.is(esValue)) {
  118. throw new globalObject.TypeError(
  119. "'get pixelDepth' called on an object that is not a valid instance of Screen."
  120. );
  121. }
  122. return esValue[implSymbol]["pixelDepth"];
  123. }
  124. }
  125. Object.defineProperties(Screen.prototype, {
  126. availWidth: { enumerable: true },
  127. availHeight: { enumerable: true },
  128. width: { enumerable: true },
  129. height: { enumerable: true },
  130. colorDepth: { enumerable: true },
  131. pixelDepth: { enumerable: true },
  132. [Symbol.toStringTag]: { value: "Screen", configurable: true }
  133. });
  134. ctorRegistry[interfaceName] = Screen;
  135. Object.defineProperty(globalObject, interfaceName, {
  136. configurable: true,
  137. writable: true,
  138. value: Screen
  139. });
  140. };
  141. const Impl = require("../../jsdom/living/window/Screen-impl.js");