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IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\n/**\n * @fileoverview A \"ponyfill\" is a polyfill that doesn't modify the global prototype chain.\n * This makes ponyfills safer than traditional polyfills, especially for libraries like MDC.\n */\n\nexport function closest(element: Element, selector: string): Element | null {\n if (element.closest) {\n return element.closest(selector);\n }\n\n let el: Element | null = element;\n while (el) {\n if (matches(el, selector)) {\n return el;\n }\n el = el.parentElement;\n }\n return null;\n}\n\nexport function matches(element: Element, selector: string): boolean {\n const nativeMatches = element.matches\n || element.webkitMatchesSelector\n || (element as any).msMatchesSelector;\n return nativeMatches.call(element, selector);\n}\n\n/**\n * Used to compute the estimated scroll width of elements. When an element is\n * hidden due to display: none; being applied to a parent element, the width is\n * returned as 0. However, the element will have a true width once no longer\n * inside a display: none context. This method computes an estimated width when\n * the element is hidden or returns the true width when the element is visble.\n * @param {Element} element the element whose width to estimate\n */\nexport function estimateScrollWidth(element: Element): number {\n // Check the offsetParent. If the element inherits display: none from any\n // parent, the offsetParent property will be null (see\n // https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/offsetParent).\n // This check ensures we only clone the node when necessary.\n const htmlEl = element as HTMLElement;\n if (htmlEl.offsetParent !== null) {\n return htmlEl.scrollWidth;\n }\n\n const clone = htmlEl.cloneNode(true) as HTMLElement;\n clone.style.setProperty('position', 'absolute');\n clone.style.setProperty('transform', 'translate(-9999px, -9999px)');\n document.documentElement.appendChild(clone);\n const scrollWidth = clone.scrollWidth;\n document.documentElement.removeChild(clone);\n return scrollWidth;\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {EventType, SpecificEventListener} from '@material/base/types';\n\n/**\n * Defines the shape of the adapter expected by the foundation.\n * Implement this adapter for your framework of choice to delegate updates to\n * the component in your framework of choice. See architecture documentation\n * for more details.\n * https://github.com/material-components/material-components-web/blob/master/docs/code/architecture.md\n */\nexport interface MDCFloatingLabelAdapter {\n /**\n * Adds a class to the label element.\n */\n addClass(className: string): void;\n\n /**\n * Removes a class from the label element.\n */\n removeClass(className: string): void;\n\n /**\n * Returns the width of the label element.\n */\n getWidth(): number;\n\n /**\n * Registers an event listener on the root element for a given event.\n */\n registerInteractionHandler<K extends EventType>(evtType: K, handler: SpecificEventListener<K>): void;\n\n /**\n * Deregisters an event listener on the root element for a given event.\n */\n deregisterInteractionHandler<K extends EventType>(evtType: K, handler: SpecificEventListener<K>): void;\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {estimateScrollWidth} from '@material/dom/ponyfill';\nimport {MDCFloatingLabelAdapter} from './adapter';\nimport {MDCFloatingLabelFoundation} from './foundation';\n\nexport type MDCFloatingLabelFactory = (el: Element, foundation?: MDCFloatingLabelFoundation) => MDCFloatingLabel;\n\nexport class MDCFloatingLabel extends MDCComponent<MDCFloatingLabelFoundation> {\n static override attachTo(root: Element): MDCFloatingLabel {\n return new MDCFloatingLabel(root);\n }\n\n /**\n * Styles the label to produce the label shake for errors.\n * @param shouldShake If true, shakes the label by adding a CSS class; otherwise, stops shaking by removing the class.\n */\n shake(shouldShake: boolean) {\n this.foundation.shake(shouldShake);\n }\n\n /**\n * Styles the label to float/dock.\n * @param shouldFloat If true, floats the label by adding a CSS class; otherwise, docks it by removing the class.\n */\n float(shouldFloat: boolean) {\n this.foundation.float(shouldFloat);\n }\n\n /**\n * Styles the label as required.\n * @param isRequired If true, adds an asterisk to the label, indicating that it is required.\n */\n setRequired(isRequired: boolean) {\n this.foundation.setRequired(isRequired);\n }\n\n getWidth(): number {\n return this.foundation.getWidth();\n }\n\n override getDefaultFoundation() {\n // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n const adapter: MDCFloatingLabelAdapter = {\n addClass: (className) => this.root.classList.add(className),\n removeClass: (className) => this.root.classList.remove(className),\n getWidth: () => estimateScrollWidth(this.root),\n registerInteractionHandler: (evtType, handler) =>\n this.listen(evtType, handler),\n deregisterInteractionHandler: (evtType, handler) =>\n this.unlisten(evtType, handler),\n };\n // tslint:enable:object-literal-sort-keys\n return new MDCFloatingLabelFoundation(adapter);\n }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n LABEL_FLOAT_ABOVE: 'mdc-floating-label--float-above',\n LABEL_REQUIRED: 'mdc-floating-label--required',\n LABEL_SHAKE: 'mdc-floating-label--shake',\n ROOT: 'mdc-floating-label',\n};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCFloatingLabelAdapter} from './adapter';\nimport {cssClasses} from './constants';\n\nexport class MDCFloatingLabelFoundation extends MDCFoundation<MDCFloatingLabelAdapter> {\n static override get cssClasses() {\n return cssClasses;\n }\n\n /**\n * See {@link MDCFloatingLabelAdapter} for typing information on parameters and return types.\n */\n static override get defaultAdapter(): MDCFloatingLabelAdapter {\n // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n return {\n addClass: () => undefined,\n removeClass: () => undefined,\n getWidth: () => 0,\n registerInteractionHandler: () => undefined,\n deregisterInteractionHandler: () => undefined,\n };\n // tslint:enable:object-literal-sort-keys\n }\n\n private readonly shakeAnimationEndHandler:\n SpecificEventListener<'animationend'>;\n\n constructor(adapter?: Partial<MDCFloatingLabelAdapter>) {\n super({...MDCFloatingLabelFoundation.defaultAdapter, ...adapter});\n\n this.shakeAnimationEndHandler = () => {\n this.handleShakeAnimationEnd();\n };\n }\n\n override init() {\n this.adapter.registerInteractionHandler(\n 'animationend', this.shakeAnimationEndHandler);\n }\n\n override destroy() {\n this.adapter.deregisterInteractionHandler(\n 'animationend', this.shakeAnimationEndHandler);\n }\n\n /**\n * Returns the width of the label element.\n */\n getWidth(): number {\n return this.adapter.getWidth();\n }\n\n /**\n * Styles the label to produce a shake animation to indicate an error.\n * @param shouldShake If true, adds the shake CSS class; otherwise, removes shake class.\n */\n shake(shouldShake: boolean) {\n const {LABEL_SHAKE} = MDCFloatingLabelFoundation.cssClasses;\n if (shouldShake) {\n this.adapter.addClass(LABEL_SHAKE);\n } else {\n this.adapter.removeClass(LABEL_SHAKE);\n }\n }\n\n /**\n * Styles the label to float or dock.\n * @param shouldFloat If true, adds the float CSS class; otherwise, removes float and shake classes to dock the label.\n */\n float(shouldFloat: boolean) {\n const {LABEL_FLOAT_ABOVE, LABEL_SHAKE} = MDCFloatingLabelFoundation.cssClasses;\n if (shouldFloat) {\n this.adapter.addClass(LABEL_FLOAT_ABOVE);\n } else {\n this.adapter.removeClass(LABEL_FLOAT_ABOVE);\n this.adapter.removeClass(LABEL_SHAKE);\n }\n }\n\n /**\n * Styles the label as required.\n * @param isRequired If true, adds an asterisk to the label, indicating that it is required.\n */\n setRequired(isRequired: boolean) {\n const {LABEL_REQUIRED} = MDCFloatingLabelFoundation.cssClasses;\n if (isRequired) {\n this.adapter.addClass(LABEL_REQUIRED);\n } else {\n this.adapter.removeClass(LABEL_REQUIRED);\n }\n }\n\n private handleShakeAnimationEnd() {\n const {LABEL_SHAKE} = MDCFloatingLabelFoundation.cssClasses;\n this.adapter.removeClass(LABEL_SHAKE);\n }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFloatingLabelFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n"],"sourceRoot":""} |