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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 './foundation';\nimport {CustomEventListener, EventType, SpecificEventListener} from './types';\n\nexport class MDCComponent<FoundationType extends MDCFoundation> {\n static attachTo(root: Element): MDCComponent<MDCFoundation<{}>> {\n // Subclasses which extend MDCBase should provide an attachTo() method that takes a root element and\n // returns an instantiated component with its root set to that element. Also note that in the cases of\n // subclasses, an explicit foundation class will not have to be passed in; it will simply be initialized\n // from getDefaultFoundation().\n return new MDCComponent(root, new MDCFoundation({}));\n }\n\n protected foundation: FoundationType;\n\n constructor(\n public root: Element, foundation?: FoundationType, ...args: unknown[]) {\n this.initialize(...args);\n // Note that we initialize foundation here and not within the constructor's\n // default param so that this.root is defined and can be used within the\n // foundation class.\n this.foundation =\n foundation === undefined ? this.getDefaultFoundation() : foundation;\n this.foundation.init();\n this.initialSyncWithDOM();\n }\n\n /* istanbul ignore next: method param only exists for typing purposes; it does not need to be unit tested */\n initialize(..._args: Array<unknown>) {\n // Subclasses can override this to do any additional setup work that would be considered part of a\n // \"constructor\". Essentially, it is a hook into the parent constructor before the foundation is\n // initialized. Any additional arguments besides root and foundation will be passed in here.\n }\n\n getDefaultFoundation(): FoundationType {\n // Subclasses must override this method to return a properly configured foundation class for the\n // component.\n throw new Error('Subclasses must override getDefaultFoundation to return a properly configured ' +\n 'foundation class');\n }\n\n initialSyncWithDOM() {\n // Subclasses should override this method if they need to perform work to synchronize with a host DOM\n // object. An example of this would be a form control wrapper that needs to synchronize its internal state\n // to some property or attribute of the host DOM. Please note: this is *not* the place to perform DOM\n // reads/writes that would cause layout / paint, as this is called synchronously from within the constructor.\n }\n\n destroy() {\n // Subclasses may implement this method to release any resources / deregister any listeners they have\n // attached. An example of this might be deregistering a resize event from the window object.\n this.foundation.destroy();\n }\n\n /**\n * Wrapper method to add an event listener to the component's root element. This is most useful when\n * listening for custom events.\n */\n listen<K extends EventType>(\n evtType: K, handler: SpecificEventListener<K>, options?: AddEventListenerOptions | boolean): void;\n listen<E extends Event>(\n evtType: string, handler: CustomEventListener<E>, options?: AddEventListenerOptions | boolean): void;\n listen(evtType: string, handler: EventListener, options?: AddEventListenerOptions | boolean) {\n this.root.addEventListener(evtType, handler, options);\n }\n\n /**\n * Wrapper method to remove an event listener to the component's root element. This is most useful when\n * unlistening for custom events.\n */\n unlisten<K extends EventType>(\n evtType: K, handler: SpecificEventListener<K>, options?: AddEventListenerOptions | boolean): void;\n unlisten<E extends Event>(\n evtType: string, handler: CustomEventListener<E>, options?: AddEventListenerOptions | boolean): void;\n unlisten(evtType: string, handler: EventListener, options?: AddEventListenerOptions | boolean) {\n this.root.removeEventListener(evtType, handler, options);\n }\n\n /**\n * Fires a cross-browser-compatible custom event from the component root of the given type, with the given data.\n */\n emit<T extends object>(evtType: string, evtData: T, shouldBubble = false) {\n let evt: CustomEvent<T>;\n if (typeof CustomEvent === 'function') {\n evt = new CustomEvent<T>(evtType, {\n bubbles: shouldBubble,\n detail: evtData,\n });\n } else {\n evt = document.createEvent('CustomEvent');\n evt.initCustomEvent(evtType, shouldBubble, false, evtData);\n }\n\n this.root.dispatchEvent(evt);\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 MDCComponent;\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 class MDCFoundation<AdapterType extends {} = {}> {\n static get cssClasses(): { [key: string]: string } {\n // Classes extending MDCFoundation should implement this method to return an object which exports every\n // CSS class the foundation class needs as a property. e.g. {ACTIVE: 'mdc-component--active'}\n return {};\n }\n\n static get strings(): { [key: string]: string } {\n // Classes extending MDCFoundation should implement this method to return an object which exports all\n // semantic strings as constants. e.g. {ARIA_ROLE: 'tablist'}\n return {};\n }\n\n static get numbers(): { [key: string]: number } {\n // Classes extending MDCFoundation should implement this method to return an object which exports all\n // of its semantic numbers as constants. e.g. {ANIMATION_DELAY_MS: 350}\n return {};\n }\n\n static get defaultAdapter(): {} {\n // Classes extending MDCFoundation may choose to implement this getter in order to provide a convenient\n // way of viewing the necessary methods of an adapter. In the future, this could also be used for adapter\n // validation.\n return {};\n }\n\n constructor(protected adapter: AdapterType = {} as AdapterType) {}\n\n init() {\n // Subclasses should override this method to perform initialization routines (registering events, etc.)\n }\n\n destroy() {\n // Subclasses should override this method to perform de-initialization routines (de-registering events, etc.)\n }\n}\n\n/**\n * The constructor for MDCFoundation.\n */\nexport interface MDCFoundationConstructor<AdapterType extends object = any> {\n new(adapter: AdapterType): MDCFoundation<AdapterType>;\n readonly prototype: MDCFoundation<AdapterType>;\n}\n\n/**\n * The deprecated constructor for MDCFoundation.\n */\nexport interface MDCFoundationDeprecatedConstructor<AdapterType extends object = any> {\n readonly cssClasses: Record<string, string>;\n readonly strings: Record<string, string>;\n readonly numbers: Record<string, number>;\n readonly defaultAdapter: AdapterType;\n\n new(adapter?: Partial<AdapterType>): MDCFoundation<AdapterType>;\n readonly prototype: MDCFoundation<AdapterType>;\n}\n\n/**\n * Retrieves the AdapaterType from the provided MDCFoundation generic type.\n */\nexport type MDCFoundationAdapter<T> =\n T extends MDCFoundation<infer A>? A : never;\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFoundation;\n","/**\n * @license\n * Copyright 2021 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 './foundation';\nimport {observeProperty, Observer, ObserverRecord, setObserversEnabled} from './observer';\n\nexport class MDCObserverFoundation<Adapter> extends MDCFoundation<Adapter> {\n /** A set of cleanup functions to unobserve changes. */\n protected unobserves = new Set<Function>();\n\n constructor(adapter: Adapter) {\n super(adapter);\n }\n\n override destroy() {\n super.destroy();\n this.unobserve();\n }\n\n /**\n * Observe a target's properties for changes using the provided map of\n * property names and observer functions.\n *\n * @template T The target type.\n * @param target - The target to observe.\n * @param observers - An object whose keys are target properties and values\n * are observer functions that are called when the associated property\n * changes.\n * @return A cleanup function that can be called to unobserve the\n * target.\n */\n protected observe<T extends object>(\n target: T, observers: ObserverRecord<T, this>) {\n const cleanup: Function[] = [];\n for (const property of Object.keys(observers) as Array<keyof T>) {\n const observer = observers[property]!.bind(this);\n cleanup.push(this.observeProperty(target, property, observer));\n }\n\n const unobserve = () => {\n for (const cleanupFn of cleanup) {\n cleanupFn();\n }\n\n this.unobserves.delete(unobserve);\n };\n\n this.unobserves.add(unobserve);\n return unobserve;\n }\n\n /**\n * Observe a target's property for changes. When a property changes, the\n * provided `Observer` function will be invoked with the properties current\n * and previous values.\n *\n * The returned cleanup function will stop listening to changes for the\n * provided `Observer`.\n *\n * @template T The observed target type.\n * @template K The observed property.\n * @param target - The target to observe.\n * @param property - The property of the target to observe.\n * @param observer - An observer function to invoke each time the property\n * changes.\n * @return A cleanup function that will stop observing changes for the\n * provided `Observer`.\n */\n protected observeProperty<T extends object, K extends keyof T>(\n target: T, property: K, observer: Observer<T, K>) {\n return observeProperty(target, property, observer);\n }\n\n /**\n * Enables or disables all observers for the provided target. Disabling\n * observers will prevent them from being called until they are re-enabled.\n *\n * @param target - The target to enable or disable observers for.\n * @param enabled - Whether or not observers should be called.\n */\n protected setObserversEnabled(target: object, enabled: boolean) {\n setObserversEnabled(target, enabled);\n }\n\n /**\n * Clean up all observers and stop listening for property changes.\n */\n protected unobserve() {\n // Iterate over a copy since unobserve() will remove themselves from the set\n for (const unobserve of [...this.unobserves]) {\n unobserve();\n }\n }\n}\n","/**\n * @license\n * Copyright 2021 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 {Constructor} from './types';\n\n/**\n * A class that can observe targets and perform cleanup logic. Classes may\n * implement this using the `mdcObserver()` mixin.\n */\nexport interface MDCObserver {\n /**\n * Observe a target's properties for changes using the provided map of\n * property names and observer functions.\n *\n * @template T The target type.\n * @param target - The target to observe.\n * @param observers - An object whose keys are target properties and values\n * are observer functions that are called when the associated property\n * changes.\n * @return A cleanup function that can be called to unobserve the\n * target.\n */\n observe<T extends object>(target: T, observers: ObserverRecord<T, this>):\n () => void;\n\n /**\n * Enables or disables all observers for the provided target. Disabling\n * observers will prevent them from being called until they are re-enabled.\n *\n * @param target - The target to enable or disable observers for.\n * @param enabled - Whether or not observers should be called.\n */\n setObserversEnabled(target: object, enabled: boolean): void;\n\n /**\n * Clean up all observers and stop listening for property changes.\n */\n unobserve(): void;\n}\n\n/**\n * A function used to observe property changes on a target.\n *\n * @template T The observed target type.\n * @template K The observed property.\n * @template This The `this` context of the observer function.\n * @param current - The current value of the property.\n * @param previous - The previous value of the property.\n */\nexport type Observer<T extends object, K extends keyof T = keyof T,\n This = unknown> =\n (this: This, current: T[K], previous: T[K]) => void;\n\n/**\n * An object map whose keys are properties of a target to observe and values\n * are `Observer` functions for each property.\n *\n * @template T The observed target type.\n * @template This The `this` context of observer functions.\n */\nexport type ObserverRecord<T extends object, This = unknown> = {\n [K in keyof T]?: Observer<T, K, This>;\n};\n\n/**\n * Mixin to add `MDCObserver` functionality.\n *\n * @deprecated Prefer MDCObserverFoundation for stricter closure compliance.\n * @return A class with `MDCObserver` functionality.\n */\nexport function mdcObserver(): Constructor<MDCObserver>;\n\n/**\n * Mixin to add `MDCObserver` functionality to a base class.\n *\n * @deprecated Prefer MDCObserverFoundation for stricter closure compliance.\n * @template T Base class instance type. Specify this generic if the base class\n * itself has generics that cannot be inferred.\n * @template C Base class constructor type.\n * @param baseClass - Base class.\n * @return A class that extends the optional base class with `MDCObserver`\n * functionality.\n */\nexport function mdcObserver<T, C extends Constructor<T>>(baseClass: C):\n Constructor<MDCObserver>&Constructor<T>&C;\n\n/**\n * Mixin to add `MDCObserver` functionality to an optional base class.\n *\n * @deprecated Prefer MDCObserverFoundation for stricter closure compliance.\n * @template C Optional base class constructor type.\n * @param baseClass - Optional base class.\n * @return A class that extends the optional base class with `MDCObserver`\n * functionality.\n */\nexport function mdcObserver<C extends Constructor>(\n baseClass: C = class {} as C) {\n // Mixin classes cannot use private members and Symbol() cannot be used in 3P\n // for IE11.\n const unobserveMap = new WeakMap<MDCObserver, Function[]>();\n return class MDCObserver extends baseClass implements MDCObserver {\n observe<T extends object>(target: T, observers: ObserverRecord<T, this>) {\n const cleanup: Function[] = [];\n for (const property of Object.keys(observers) as Array<keyof T>) {\n const observer = observers[property]!.bind(this);\n cleanup.push(observeProperty(target, property, observer));\n }\n\n const unobserve = () => {\n for (const cleanupFn of cleanup) {\n cleanupFn();\n }\n const unobserves = unobserveMap.get(this) || [];\n const index = unobserves.indexOf(unobserve);\n if (index > -1) {\n unobserves.splice(index, 1);\n }\n };\n\n let unobserves = unobserveMap.get(this);\n if (!unobserves) {\n unobserves = [];\n unobserveMap.set(this, unobserves);\n }\n\n unobserves.push(unobserve);\n return unobserve;\n }\n\n setObserversEnabled(target: object, enabled: boolean) {\n setObserversEnabled(target, enabled);\n }\n\n unobserve() {\n // Iterate over a copy since unobserve() will remove themselves from the\n // array\n const unobserves = unobserveMap.get(this) || [];\n for (const unobserve of [...unobserves]) {\n unobserve();\n }\n }\n };\n}\n\n/**\n * A manager for observers listening to a target. A target's `prototype` is its\n * `TargetObservers` instance.\n *\n * @template T The observed target type.\n */\ninterface TargetObservers<T extends object> {\n /**\n * Indicates whether or not observers for this target are enabled. If\n * disabled, observers will not be called in response to target property\n * changes.\n */\n isEnabled: boolean;\n\n /**\n * Retrieves all observers for a given target property.\n *\n * @template K The target property key.\n * @param key - The property to retrieve observers for.\n * @return An array of observers for the provided target property.\n */\n getObservers<K extends keyof T>(key: K): Array<Observer<T, K>>;\n\n /**\n * A Set of properties that have been installed (their getter/setter) replaced\n * to connect with the `TargetObservers`. This prevents multiple installations\n * of the same property.\n */\n installedProperties: Set<keyof T>;\n}\n\n/**\n * Observe a target's property for changes. When a property changes, the\n * provided `Observer` function will be invoked with the properties current and\n * previous values.\n *\n * The returned cleanup function will stop listening to changes for the\n * provided `Observer`.\n *\n * @template T The observed target type.\n * @template K The observed property.\n * @param target - The target to observe.\n * @param property - The property of the target to observe.\n * @param observer - An observer function to invoke each time the property\n * changes.\n * @return A cleanup function that will stop observing changes for the provided\n * `Observer`.\n */\nexport function observeProperty<T extends object, K extends keyof T>(\n target: T, property: K, observer: Observer<T, K>) {\n const targetObservers = installObserver(target, property);\n const observers = targetObservers.getObservers(property);\n observers.push(observer);\n return () => {\n observers.splice(observers.indexOf(observer), 1);\n };\n}\n\n/**\n * A Map of all `TargetObservers` that have been installed.\n */\nconst allTargetObservers = new WeakMap<object, TargetObservers<any>>();\n\n/**\n * Installs a `TargetObservers` for the provided target (if not already\n * installed), and replaces the given property with a getter and setter that\n * will respond to changes and call `TargetObservers`.\n *\n * Subsequent calls to `installObserver()` with the same target and property\n * will not override the property's previously installed getter/setter.\n *\n * @template T The observed target type.\n * @template K The observed property to create a getter/setter for.\n * @param target - The target to observe.\n * @param property - The property to create a getter/setter for, if needed.\n * @return The installed `TargetObservers` for the provided target.\n */\nfunction installObserver<T extends object, K extends keyof T>(\n target: T, property: K): TargetObservers<T> {\n const observersMap = new Map<keyof T, Array<Observer<T>>>();\n\n if (!allTargetObservers.has(target)) {\n allTargetObservers.set(target, {\n isEnabled: true,\n getObservers(key) {\n const observers = observersMap.get(key) || [];\n if (!observersMap.has(key)) {\n observersMap.set(key, observers);\n }\n\n return observers;\n },\n installedProperties: new Set()\n } as TargetObservers<T>);\n }\n\n const targetObservers = allTargetObservers.get(target)!;\n if (targetObservers.installedProperties.has(property)) {\n // The getter/setter has already been replaced for this property\n return targetObservers;\n }\n\n // Retrieve (or create if it's a plain property) the original descriptor from\n // the target...\n const descriptor = getDescriptor(target, property) || {\n configurable: true,\n enumerable: true,\n value: target[property],\n writable: true\n };\n\n // ...and create a copy that will be used for the observer.\n const observedDescriptor = {...descriptor};\n let {get: descGet, set: descSet} = descriptor;\n if ('value' in descriptor) {\n // The descriptor is a simple value (not a getter/setter).\n // For our observer descriptor that we copied, delete the value/writable\n // properties, since they are incompatible with the get/set properties\n // for descriptors.\n delete observedDescriptor.value;\n delete observedDescriptor.writable;\n\n // Set up a simple getter...\n let value = descriptor.value as T[K];\n descGet = () => value;\n\n // ...and setter (if the original property was writable).\n if (descriptor.writable) {\n descSet = (newValue) => {\n value = newValue;\n };\n }\n }\n\n if (descGet) {\n observedDescriptor.get = function(this: T) {\n // `this as T` needed for closure conformance\n return descGet!.call(this as T);\n };\n }\n\n if (descSet) {\n observedDescriptor.set = function(this: T, newValue: T[K]) {\n // `thus as T` needed for closure conformance\n const previous = descGet ? descGet.call(this as T) : newValue;\n descSet!.call(this as T, newValue);\n if (targetObservers.isEnabled && (!descGet || newValue !== previous)) {\n for (const observer of targetObservers.getObservers(property)) {\n observer(newValue, previous);\n }\n }\n };\n }\n\n targetObservers.installedProperties.add(property);\n Object.defineProperty(target, property, observedDescriptor);\n return targetObservers;\n}\n\n/**\n * Retrieves the descriptor for a property from the provided target. This\n * function will walk up the target's prototype chain to search for the\n * descriptor.\n *\n * @template T The target type.\n * @template K The property type.\n * @param target - The target to retrieve a descriptor from.\n * @param property - The name of the property to retrieve a descriptor for.\n * @return the descriptor, or undefined if it does not exist. Keep in mind that\n * plain properties may not have a descriptor defined.\n */\nexport function getDescriptor<T extends object, K extends keyof T>(\n target: T, property: K) {\n let descriptorTarget: object|null = target;\n let descriptor: TypedPropertyDescriptor<T[K]>|undefined;\n while (descriptorTarget) {\n descriptor = Object.getOwnPropertyDescriptor(descriptorTarget, property);\n if (descriptor) {\n break;\n }\n\n // Walk up the instance's prototype chain in case the property is declared\n // on a superclass.\n descriptorTarget = Object.getPrototypeOf(descriptorTarget);\n }\n\n return descriptor;\n}\n\n/**\n * Enables or disables all observers for a provided target. Changes to observed\n * properties will not call any observers when disabled.\n *\n * @template T The observed target type.\n * @param target - The target to enable or disable observers for.\n * @param enabled - True to enable or false to disable observers.\n */\nexport function setObserversEnabled<T extends object>(\n target: T, enabled: boolean) {\n const targetObservers = allTargetObservers.get(target);\n if (targetObservers) {\n targetObservers.isEnabled = enabled;\n }\n}\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\n/**\n * Determine whether the current browser supports passive event listeners, and\n * if so, use them.\n */\nexport function applyPassive(globalObj: Window = window):\n boolean | EventListenerOptions {\n return supportsPassiveOption(globalObj) ?\n {passive: true} as AddEventListenerOptions :\n false;\n}\n\nfunction supportsPassiveOption(globalObj: Window = window): boolean {\n // See\n // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener\n let passiveSupported = false;\n\n try {\n const options = {\n // This function will be called when the browser\n // attempts to access the passive property.\n get passive() {\n passiveSupported = true;\n return false;\n }\n };\n\n const handler = () => {};\n globalObj.document.addEventListener('test', handler, options);\n globalObj.document.removeEventListener(\n 'test', handler, options as EventListenerOptions);\n } catch (err) {\n passiveSupported = false;\n }\n\n return passiveSupported;\n}\n","/**\n * @license\n * Copyright 2018 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\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 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 {applyPassive} from '@material/dom/events';\nimport {matches} from '@material/dom/ponyfill';\nimport {MDCRippleAdapter} from './adapter';\nimport {MDCRippleFoundation} from './foundation';\nimport {MDCRippleAttachOpts, MDCRippleCapableSurface} from './types';\nimport * as util from './util';\n\nexport type MDCRippleFactory = (el: Element, foundation?: MDCRippleFoundation) => MDCRipple;\n\nexport class MDCRipple extends MDCComponent<MDCRippleFoundation> implements MDCRippleCapableSurface {\n static override attachTo(root: Element, opts: MDCRippleAttachOpts = {\n isUnbounded: undefined\n }): MDCRipple {\n const ripple = new MDCRipple(root);\n // Only override unbounded behavior if option is explicitly specified\n if (opts.isUnbounded !== undefined) {\n ripple.unbounded = opts.isUnbounded;\n }\n return ripple;\n }\n\n static createAdapter(instance: MDCRippleCapableSurface): MDCRippleAdapter {\n return {\n addClass: (className) => instance.root.classList.add(className),\n browserSupportsCssVars: () => util.supportsCssVariables(window),\n computeBoundingRect: () => instance.root.getBoundingClientRect(),\n containsEventTarget: (target) => instance.root.contains(target as Node),\n deregisterDocumentInteractionHandler: (evtType, handler) =>\n document.documentElement.removeEventListener(\n evtType, handler, applyPassive()),\n deregisterInteractionHandler: (evtType, handler) =>\n (instance.root as HTMLElement)\n .removeEventListener(evtType, handler, applyPassive()),\n deregisterResizeHandler: (handler) =>\n window.removeEventListener('resize', handler),\n getWindowPageOffset: () =>\n ({x: window.pageXOffset, y: window.pageYOffset}),\n isSurfaceActive: () => matches(instance.root, ':active'),\n isSurfaceDisabled: () => Boolean(instance.disabled),\n isUnbounded: () => Boolean(instance.unbounded),\n registerDocumentInteractionHandler: (evtType, handler) =>\n document.documentElement.addEventListener(\n evtType, handler, applyPassive()),\n registerInteractionHandler: (evtType, handler) =>\n (instance.root as HTMLElement)\n .addEventListener(evtType, handler, applyPassive()),\n registerResizeHandler: (handler) =>\n window.addEventListener('resize', handler),\n removeClass: (className) => instance.root.classList.remove(className),\n updateCssVariable: (varName, value) =>\n (instance.root as HTMLElement).style.setProperty(varName, value),\n };\n }\n\n disabled = false;\n\n private isUnbounded?: boolean;\n\n get unbounded(): boolean {\n return Boolean(this.isUnbounded);\n }\n\n set unbounded(unbounded: boolean) {\n this.isUnbounded = Boolean(unbounded);\n this.setUnbounded();\n }\n\n activate() {\n this.foundation.activate();\n }\n\n deactivate() {\n this.foundation.deactivate();\n }\n\n layout() {\n this.foundation.layout();\n }\n\n override getDefaultFoundation() {\n return new MDCRippleFoundation(MDCRipple.createAdapter(this));\n }\n\n override initialSyncWithDOM() {\n const root = this.root as HTMLElement;\n this.isUnbounded = 'mdcRippleIsUnbounded' in root.dataset;\n }\n\n /**\n * Closure Compiler throws an access control error when directly accessing a\n * protected or private property inside a getter/setter, like unbounded above.\n * By accessing the protected property inside a method, we solve that problem.\n * That's why this function exists.\n */\n private setUnbounded() {\n this.foundation.setUnbounded(Boolean(this.isUnbounded));\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 // Ripple is a special case where the \"root\" component is really a \"mixin\" of sorts,\n // given that it's an 'upgrade' to an existing component. That being said it is the root\n // CSS class that all other CSS classes derive from.\n BG_FOCUSED: 'mdc-ripple-upgraded--background-focused',\n FG_ACTIVATION: 'mdc-ripple-upgraded--foreground-activation',\n FG_DEACTIVATION: 'mdc-ripple-upgraded--foreground-deactivation',\n ROOT: 'mdc-ripple-upgraded',\n UNBOUNDED: 'mdc-ripple-upgraded--unbounded',\n};\n\nexport const strings = {\n VAR_FG_SCALE: '--mdc-ripple-fg-scale',\n VAR_FG_SIZE: '--mdc-ripple-fg-size',\n VAR_FG_TRANSLATE_END: '--mdc-ripple-fg-translate-end',\n VAR_FG_TRANSLATE_START: '--mdc-ripple-fg-translate-start',\n VAR_LEFT: '--mdc-ripple-left',\n VAR_TOP: '--mdc-ripple-top',\n};\n\nexport const numbers = {\n DEACTIVATION_TIMEOUT_MS: 225, // Corresponds to $mdc-ripple-translate-duration (i.e. activation animation duration)\n FG_DEACTIVATION_MS: 150, // Corresponds to $mdc-ripple-fade-out-duration (i.e. deactivation animation duration)\n INITIAL_ORIGIN_SCALE: 0.6,\n PADDING: 10,\n TAP_DELAY_MS: 300, // Delay between touch and simulated mouse events on touch devices\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 {MDCRippleAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\nimport {MDCRipplePoint} from './types';\nimport {getNormalizedEventCoords} from './util';\n\ninterface ActivationStateType {\n isActivated?: boolean;\n hasDeactivationUXRun?: boolean;\n wasActivatedByPointer?: boolean;\n wasElementMadeActive?: boolean;\n activationEvent?: Event;\n isProgrammatic?: boolean;\n}\n\ninterface FgTranslationCoordinates {\n startPoint: MDCRipplePoint;\n endPoint: MDCRipplePoint;\n}\n\ninterface Coordinates {\n left: number;\n top: number;\n}\n\ninterface EventHandlerNonNull {\n (event: Event): any;\n}\n\ntype ActivationEventType = 'touchstart' | 'pointerdown' | 'mousedown' | 'keydown';\ntype DeactivationEventType = 'touchend' | 'pointerup' | 'mouseup' | 'contextmenu';\n\n// Activation events registered on the root element of each instance for activation\nconst ACTIVATION_EVENT_TYPES: ActivationEventType[] = [\n 'touchstart', 'pointerdown', 'mousedown', 'keydown',\n];\n\n// Deactivation events registered on documentElement when a pointer-related down event occurs\nconst POINTER_DEACTIVATION_EVENT_TYPES: DeactivationEventType[] = [\n 'touchend', 'pointerup', 'mouseup', 'contextmenu',\n];\n\n// simultaneous nested activations\nlet activatedTargets: Array<EventTarget | null> = [];\n\nexport class MDCRippleFoundation extends MDCFoundation<MDCRippleAdapter> {\n static override get cssClasses() {\n return cssClasses;\n }\n\n static override get strings() {\n return strings;\n }\n\n static override get numbers() {\n return numbers;\n }\n\n static override get defaultAdapter(): MDCRippleAdapter {\n return {\n addClass: () => undefined,\n browserSupportsCssVars: () => true,\n computeBoundingRect: () =>\n ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0} as any),\n containsEventTarget: () => true,\n deregisterDocumentInteractionHandler: () => undefined,\n deregisterInteractionHandler: () => undefined,\n deregisterResizeHandler: () => undefined,\n getWindowPageOffset: () => ({x: 0, y: 0}),\n isSurfaceActive: () => true,\n isSurfaceDisabled: () => true,\n isUnbounded: () => true,\n registerDocumentInteractionHandler: () => undefined,\n registerInteractionHandler: () => undefined,\n registerResizeHandler: () => undefined,\n removeClass: () => undefined,\n updateCssVariable: () => undefined,\n };\n }\n\n private activationAnimationHasEnded = false;\n private activationState: ActivationStateType;\n private activationTimer = 0;\n private fgDeactivationRemovalTimer = 0;\n private fgScale = '0';\n private frame = {width: 0, height: 0};\n private initialSize = 0;\n private layoutFrame = 0;\n private maxRadius = 0;\n private unboundedCoords: Coordinates = {left: 0, top: 0};\n\n private readonly activationTimerCallback: () => void;\n private readonly activateHandler: EventHandlerNonNull;\n private readonly deactivateHandler: EventHandlerNonNull;\n private readonly focusHandler: EventHandlerNonNull;\n private readonly blurHandler: EventHandlerNonNull;\n private readonly resizeHandler: EventHandlerNonNull;\n\n private previousActivationEvent?: Event;\n\n constructor(adapter?: Partial<MDCRippleAdapter>) {\n super({...MDCRippleFoundation.defaultAdapter, ...adapter});\n\n this.activationState = this.defaultActivationState();\n\n this.activationTimerCallback = () => {\n this.activationAnimationHasEnded = true;\n this.runDeactivationUXLogicIfReady();\n };\n this.activateHandler = (e) => {\n this.activateImpl(e);\n };\n this.deactivateHandler = () => {\n this.deactivateImpl();\n };\n this.focusHandler = () => {\n this.handleFocus();\n };\n this.blurHandler = () => {\n this.handleBlur();\n };\n this.resizeHandler = () => {\n this.layout();\n };\n }\n\n override init() {\n const supportsPressRipple = this.supportsPressRipple();\n\n this.registerRootHandlers(supportsPressRipple);\n\n if (supportsPressRipple) {\n const {ROOT, UNBOUNDED} = MDCRippleFoundation.cssClasses;\n requestAnimationFrame(() => {\n this.adapter.addClass(ROOT);\n if (this.adapter.isUnbounded()) {\n this.adapter.addClass(UNBOUNDED);\n // Unbounded ripples need layout logic applied immediately to set coordinates for both shade and ripple\n this.layoutInternal();\n }\n });\n }\n }\n\n override destroy() {\n if (this.supportsPressRipple()) {\n if (this.activationTimer) {\n clearTimeout(this.activationTimer);\n this.activationTimer = 0;\n this.adapter.removeClass(MDCRippleFoundation.cssClasses.FG_ACTIVATION);\n }\n\n if (this.fgDeactivationRemovalTimer) {\n clearTimeout(this.fgDeactivationRemovalTimer);\n this.fgDeactivationRemovalTimer = 0;\n this.adapter.removeClass(\n MDCRippleFoundation.cssClasses.FG_DEACTIVATION);\n }\n\n const {ROOT, UNBOUNDED} = MDCRippleFoundation.cssClasses;\n requestAnimationFrame(() => {\n this.adapter.removeClass(ROOT);\n this.adapter.removeClass(UNBOUNDED);\n this.removeCssVars();\n });\n }\n\n this.deregisterRootHandlers();\n this.deregisterDeactivationHandlers();\n }\n\n /**\n * @param evt Optional event containing position information.\n */\n activate(evt?: Event): void {\n this.activateImpl(evt);\n }\n\n deactivate(): void {\n this.deactivateImpl();\n }\n\n layout(): void {\n if (this.layoutFrame) {\n cancelAnimationFrame(this.layoutFrame);\n }\n this.layoutFrame = requestAnimationFrame(() => {\n this.layoutInternal();\n this.layoutFrame = 0;\n });\n }\n\n setUnbounded(unbounded: boolean): void {\n const {UNBOUNDED} = MDCRippleFoundation.cssClasses;\n if (unbounded) {\n this.adapter.addClass(UNBOUNDED);\n } else {\n this.adapter.removeClass(UNBOUNDED);\n }\n }\n\n handleFocus(): void {\n requestAnimationFrame(\n () => this.adapter.addClass(MDCRippleFoundation.cssClasses.BG_FOCUSED));\n }\n\n handleBlur(): void {\n requestAnimationFrame(\n () => this.adapter.removeClass(\n MDCRippleFoundation.cssClasses.BG_FOCUSED));\n }\n\n /**\n * We compute this property so that we are not querying information about the client\n * until the point in time where the foundation requests it. This prevents scenarios where\n * client-side feature-detection may happen too early, such as when components are rendered on the server\n * and then initialized at mount time on the client.\n */\n private supportsPressRipple(): boolean {\n return this.adapter.browserSupportsCssVars();\n }\n\n private defaultActivationState(): ActivationStateType {\n return {\n activationEvent: undefined,\n hasDeactivationUXRun: false,\n isActivated: false,\n isProgrammatic: false,\n wasActivatedByPointer: false,\n wasElementMadeActive: false,\n };\n }\n\n /**\n * supportsPressRipple Passed from init to save a redundant function call\n */\n private registerRootHandlers(supportsPressRipple: boolean) {\n if (supportsPressRipple) {\n for (const evtType of ACTIVATION_EVENT_TYPES) {\n this.adapter.registerInteractionHandler(evtType, this.activateHandler);\n }\n if (this.adapter.isUnbounded()) {\n this.adapter.registerResizeHandler(this.resizeHandler);\n }\n }\n\n this.adapter.registerInteractionHandler('focus', this.focusHandler);\n this.adapter.registerInteractionHandler('blur', this.blurHandler);\n }\n\n private registerDeactivationHandlers(evt: Event) {\n if (evt.type === 'keydown') {\n this.adapter.registerInteractionHandler('keyup', this.deactivateHandler);\n } else {\n for (const evtType of POINTER_DEACTIVATION_EVENT_TYPES) {\n this.adapter.registerDocumentInteractionHandler(\n evtType, this.deactivateHandler);\n }\n }\n }\n\n private deregisterRootHandlers() {\n for (const evtType of ACTIVATION_EVENT_TYPES) {\n this.adapter.deregisterInteractionHandler(evtType, this.activateHandler);\n }\n this.adapter.deregisterInteractionHandler('focus', this.focusHandler);\n this.adapter.deregisterInteractionHandler('blur', this.blurHandler);\n\n if (this.adapter.isUnbounded()) {\n this.adapter.deregisterResizeHandler(this.resizeHandler);\n }\n }\n\n private deregisterDeactivationHandlers() {\n this.adapter.deregisterInteractionHandler('keyup', this.deactivateHandler);\n for (const evtType of POINTER_DEACTIVATION_EVENT_TYPES) {\n this.adapter.deregisterDocumentInteractionHandler(\n evtType, this.deactivateHandler);\n }\n }\n\n private removeCssVars() {\n const rippleStrings = MDCRippleFoundation.strings;\n const keys = Object.keys(rippleStrings) as Array<keyof typeof rippleStrings>;\n keys.forEach((key) => {\n if (key.indexOf('VAR_') === 0) {\n this.adapter.updateCssVariable(rippleStrings[key], null);\n }\n });\n }\n\n private activateImpl(evt?: Event) {\n if (this.adapter.isSurfaceDisabled()) {\n return;\n }\n\n const activationState = this.activationState;\n if (activationState.isActivated) {\n return;\n }\n\n // Avoid reacting to follow-on events fired by touch device after an already-processed user interaction\n const previousActivationEvent = this.previousActivationEvent;\n const isSameInteraction = previousActivationEvent && evt !== undefined && previousActivationEvent.type !== evt.type;\n if (isSameInteraction) {\n return;\n }\n\n activationState.isActivated = true;\n activationState.isProgrammatic = evt === undefined;\n activationState.activationEvent = evt;\n activationState.wasActivatedByPointer = activationState.isProgrammatic ? false : evt !== undefined && (\n evt.type === 'mousedown' || evt.type === 'touchstart' || evt.type === 'pointerdown'\n );\n\n const hasActivatedChild = evt !== undefined &&\n activatedTargets.length > 0 &&\n activatedTargets.some(\n (target) => this.adapter.containsEventTarget(target));\n if (hasActivatedChild) {\n // Immediately reset activation state, while preserving logic that prevents touch follow-on events\n this.resetActivationState();\n return;\n }\n\n if (evt !== undefined) {\n activatedTargets.push(evt.target);\n this.registerDeactivationHandlers(evt);\n }\n\n activationState.wasElementMadeActive = this.checkElementMadeActive(evt);\n if (activationState.wasElementMadeActive) {\n this.animateActivation();\n }\n\n requestAnimationFrame(() => {\n // Reset array on next frame after the current event has had a chance to bubble to prevent ancestor ripples\n activatedTargets = [];\n\n if (!activationState.wasElementMadeActive\n && evt !== undefined\n && ((evt as KeyboardEvent).key === ' ' || (evt as KeyboardEvent).keyCode === 32)) {\n // If space was pressed, try again within an rAF call to detect :active, because different UAs report\n // active states inconsistently when they're called within event handling code:\n // - https://bugs.chromium.org/p/chromium/issues/detail?id=635971\n // - https://bugzilla.mozilla.org/show_bug.cgi?id=1293741\n // We try first outside rAF to support Edge, which does not exhibit this problem, but will crash if a CSS\n // variable is set within a rAF callback for a submit button interaction (#2241).\n activationState.wasElementMadeActive = this.checkElementMadeActive(evt);\n if (activationState.wasElementMadeActive) {\n this.animateActivation();\n }\n }\n\n if (!activationState.wasElementMadeActive) {\n // Reset activation state immediately if element was not made active.\n this.activationState = this.defaultActivationState();\n }\n });\n }\n\n private checkElementMadeActive(evt?: Event) {\n return (evt !== undefined && evt.type === 'keydown') ?\n this.adapter.isSurfaceActive() :\n true;\n }\n\n private animateActivation() {\n const {VAR_FG_TRANSLATE_START, VAR_FG_TRANSLATE_END} = MDCRippleFoundation.strings;\n const {FG_DEACTIVATION, FG_ACTIVATION} = MDCRippleFoundation.cssClasses;\n const {DEACTIVATION_TIMEOUT_MS} = MDCRippleFoundation.numbers;\n\n this.layoutInternal();\n\n let translateStart = '';\n let translateEnd = '';\n\n if (!this.adapter.isUnbounded()) {\n const {startPoint, endPoint} = this.getFgTranslationCoordinates();\n translateStart = `${startPoint.x}px, ${startPoint.y}px`;\n translateEnd = `${endPoint.x}px, ${endPoint.y}px`;\n }\n\n this.adapter.updateCssVariable(VAR_FG_TRANSLATE_START, translateStart);\n this.adapter.updateCssVariable(VAR_FG_TRANSLATE_END, translateEnd);\n // Cancel any ongoing activation/deactivation animations\n clearTimeout(this.activationTimer);\n clearTimeout(this.fgDeactivationRemovalTimer);\n this.rmBoundedActivationClasses();\n this.adapter.removeClass(FG_DEACTIVATION);\n\n // Force layout in order to re-trigger the animation.\n this.adapter.computeBoundingRect();\n this.adapter.addClass(FG_ACTIVATION);\n this.activationTimer = setTimeout(() => {\n this.activationTimerCallback();\n }, DEACTIVATION_TIMEOUT_MS);\n }\n\n private getFgTranslationCoordinates(): FgTranslationCoordinates {\n const {activationEvent, wasActivatedByPointer} = this.activationState;\n\n let startPoint;\n if (wasActivatedByPointer) {\n startPoint = getNormalizedEventCoords(\n activationEvent,\n this.adapter.getWindowPageOffset(),\n this.adapter.computeBoundingRect(),\n );\n } else {\n startPoint = {\n x: this.frame.width / 2,\n y: this.frame.height / 2,\n };\n }\n // Center the element around the start point.\n startPoint = {\n x: startPoint.x - (this.initialSize / 2),\n y: startPoint.y - (this.initialSize / 2),\n };\n\n const endPoint = {\n x: (this.frame.width / 2) - (this.initialSize / 2),\n y: (this.frame.height / 2) - (this.initialSize / 2),\n };\n\n return {startPoint, endPoint};\n }\n\n private runDeactivationUXLogicIfReady() {\n // This method is called both when a pointing device is released, and when the activation animation ends.\n // The deactivation animation should only run after both of those occur.\n const {FG_DEACTIVATION} = MDCRippleFoundation.cssClasses;\n const {hasDeactivationUXRun, isActivated} = this.activationState;\n const activationHasEnded = hasDeactivationUXRun || !isActivated;\n\n if (activationHasEnded && this.activationAnimationHasEnded) {\n this.rmBoundedActivationClasses();\n this.adapter.addClass(FG_DEACTIVATION);\n this.fgDeactivationRemovalTimer = setTimeout(() => {\n this.adapter.removeClass(FG_DEACTIVATION);\n }, numbers.FG_DEACTIVATION_MS);\n }\n }\n\n private rmBoundedActivationClasses() {\n const {FG_ACTIVATION} = MDCRippleFoundation.cssClasses;\n this.adapter.removeClass(FG_ACTIVATION);\n this.activationAnimationHasEnded = false;\n this.adapter.computeBoundingRect();\n }\n\n private resetActivationState() {\n this.previousActivationEvent = this.activationState.activationEvent;\n this.activationState = this.defaultActivationState();\n // Touch devices may fire additional events for the same interaction within a short time.\n // Store the previous event until it's safe to assume that subsequent events are for new interactions.\n setTimeout(\n () => this.previousActivationEvent = undefined,\n MDCRippleFoundation.numbers.TAP_DELAY_MS);\n }\n\n private deactivateImpl(): void {\n const activationState = this.activationState;\n // This can happen in scenarios such as when you have a keyup event that blurs the element.\n if (!activationState.isActivated) {\n return;\n }\n\n const state: ActivationStateType = {...activationState};\n\n if (activationState.isProgrammatic) {\n requestAnimationFrame(() => {\n this.animateDeactivation(state);\n });\n this.resetActivationState();\n } else {\n this.deregisterDeactivationHandlers();\n requestAnimationFrame(() => {\n this.activationState.hasDeactivationUXRun = true;\n this.animateDeactivation(state);\n this.resetActivationState();\n });\n }\n }\n\n private animateDeactivation({wasActivatedByPointer, wasElementMadeActive}:\n ActivationStateType) {\n if (wasActivatedByPointer || wasElementMadeActive) {\n this.runDeactivationUXLogicIfReady();\n }\n }\n\n private layoutInternal() {\n this.frame = this.adapter.computeBoundingRect();\n const maxDim = Math.max(this.frame.height, this.frame.width);\n\n // Surface diameter is treated differently for unbounded vs. bounded ripples.\n // Unbounded ripple diameter is calculated smaller since the surface is expected to already be padded appropriately\n // to extend the hitbox, and the ripple is expected to meet the edges of the padded hitbox (which is typically\n // square). Bounded ripples, on the other hand, are fully expected to expand beyond the surface's longest diameter\n // (calculated based on the diagonal plus a constant padding), and are clipped at the surface's border via\n // `overflow: hidden`.\n const getBoundedRadius = () => {\n const hypotenuse = Math.sqrt(\n Math.pow(this.frame.width, 2) + Math.pow(this.frame.height, 2));\n return hypotenuse + MDCRippleFoundation.numbers.PADDING;\n };\n\n this.maxRadius = this.adapter.isUnbounded() ? maxDim : getBoundedRadius();\n\n // Ripple is sized as a fraction of the largest dimension of the surface, then scales up using a CSS scale transform\n const initialSize = Math.floor(maxDim * MDCRippleFoundation.numbers.INITIAL_ORIGIN_SCALE);\n // Unbounded ripple size should always be even number to equally center align.\n if (this.adapter.isUnbounded() && initialSize % 2 !== 0) {\n this.initialSize = initialSize - 1;\n } else {\n this.initialSize = initialSize;\n }\n this.fgScale = `${this.maxRadius / this.initialSize}`;\n\n this.updateLayoutCssVars();\n }\n\n private updateLayoutCssVars() {\n const {\n VAR_FG_SIZE, VAR_LEFT, VAR_TOP, VAR_FG_SCALE,\n } = MDCRippleFoundation.strings;\n\n this.adapter.updateCssVariable(VAR_FG_SIZE, `${this.initialSize}px`);\n this.adapter.updateCssVariable(VAR_FG_SCALE, this.fgScale);\n\n if (this.adapter.isUnbounded()) {\n this.unboundedCoords = {\n left: Math.round((this.frame.width / 2) - (this.initialSize / 2)),\n top: Math.round((this.frame.height / 2) - (this.initialSize / 2)),\n };\n\n this.adapter.updateCssVariable(\n VAR_LEFT, `${this.unboundedCoords.left}px`);\n this.adapter.updateCssVariable(VAR_TOP, `${this.unboundedCoords.top}px`);\n }\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 MDCRippleFoundation;\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 */\nimport {MDCRipplePoint} from './types';\n\n/**\n * Stores result from supportsCssVariables to avoid redundant processing to\n * detect CSS custom variable support.\n */\nlet supportsCssVariables_: boolean | undefined;\n\nexport function supportsCssVariables(windowObj: typeof globalThis, forceRefresh = false): boolean {\n const {CSS} = windowObj;\n let supportsCssVars = supportsCssVariables_;\n if (typeof supportsCssVariables_ === 'boolean' && !forceRefresh) {\n return supportsCssVariables_;\n }\n\n const supportsFunctionPresent = CSS && typeof CSS.supports === 'function';\n if (!supportsFunctionPresent) {\n return false;\n }\n\n const explicitlySupportsCssVars = CSS.supports('--css-vars', 'yes');\n // See: https://bugs.webkit.org/show_bug.cgi?id=154669\n // See: README section on Safari\n const weAreFeatureDetectingSafari10plus = (\n CSS.supports('(--css-vars: yes)') &&\n CSS.supports('color', '#00000000')\n );\n\n supportsCssVars =\n explicitlySupportsCssVars || weAreFeatureDetectingSafari10plus;\n\n if (!forceRefresh) {\n supportsCssVariables_ = supportsCssVars;\n }\n return supportsCssVars;\n}\n\nexport function getNormalizedEventCoords(evt: Event | undefined, pageOffset: MDCRipplePoint, clientRect: DOMRect):\n MDCRipplePoint {\n if (!evt) {\n return {x: 0, y: 0};\n }\n const {x, y} = pageOffset;\n const documentX = x + clientRect.left;\n const documentY = y + clientRect.top;\n\n let normalizedX;\n let normalizedY;\n // Determine touch point relative to the ripple container.\n if (evt.type === 'touchstart') {\n const touchEvent = evt as TouchEvent;\n normalizedX = touchEvent.changedTouches[0].pageX - documentX;\n normalizedY = touchEvent.changedTouches[0].pageY - documentY;\n } else {\n const mouseEvent = evt as MouseEvent;\n normalizedX = mouseEvent.pageX - documentX;\n normalizedY = mouseEvent.pageY - documentY;\n }\n\n return {x: normalizedX, y: normalizedY};\n}\n","/**\n * @license\n * Copyright 2021 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 {CssClasses} from './constants';\n\n/**\n * The state of the switch.\n */\nexport interface MDCSwitchState {\n /**\n * Indicates whether or not the switch is disabled.\n */\n disabled: boolean;\n /**\n * Indicates whether or not the switch is processing and showing a loading\n * indicator. A disabled switch cannot be processing.\n */\n processing: boolean;\n /**\n * If true, the switch is on. If false, the switch is off.\n */\n selected: boolean;\n}\n\n/**\n * Defines the shape of the adapter expected by the foundation.\n *\n * This adapter is used to delegate state-only updates from the foundation\n * to the component. It does not delegate DOM or rendering logic, such as adding\n * or removing classes.\n */\nexport interface MDCSwitchAdapter {\n /**\n * The state of the component.\n */\n state: MDCSwitchState;\n}\n\n/**\n * Defines the shape of the adapter expected by the rendering foundation.\n *\n * This adapter is used to delegate state and rendering logic updates from the\n * rendering foundation to the component.\n */\nexport interface MDCSwitchRenderAdapter extends MDCSwitchAdapter {\n /**\n * Adds a class to the root element.\n * @param className The class to add.\n */\n addClass(className: CssClasses): void;\n /**\n * Returns whether or not the root element has a class.\n * @param className The class to check.\n * @return true if the root element has the class, or false if not.\n */\n hasClass(className: CssClasses): boolean;\n /**\n * Checks if the root element is disabled.\n * @return true if the root element is disabled, or false if not.\n */\n isDisabled(): boolean;\n /**\n * Removes a class from the root element.\n * @param className The class to remove.\n */\n removeClass(className: CssClasses): void;\n /**\n * Sets the `aria-checked` attribute of the root element.\n * @param ariaChecked The value of the attribute to set.\n */\n setAriaChecked(ariaChecked: string): void;\n /**\n * Disables or enables the root element.\n * @param disabled True to disable the root element, or false to enable.\n */\n setDisabled(disabled: boolean): void;\n}\n","/**\n * @license\n * Copyright 2021 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 {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\n\nimport {MDCSwitchRenderAdapter, MDCSwitchState} from './adapter';\nimport {Selectors} from './constants';\nimport {MDCSwitchRenderFoundation} from './foundation';\n\n/**\n * `MDCSwitch` provides a component implementation of a Material Design switch.\n */\nexport class MDCSwitch extends\n MDCComponent<MDCSwitchRenderFoundation> implements MDCSwitchState,\n MDCRippleCapableSurface {\n /**\n * Creates a new `MDCSwitch` and attaches it to the given root element.\n * @param root The root to attach to.\n * @return the new component instance.\n */\n static override attachTo(root: HTMLButtonElement) {\n return new MDCSwitch(root);\n }\n\n disabled!: boolean;\n processing!: boolean;\n selected!: boolean;\n\n ripple!: MDCRipple;\n\n private rippleElement!: Element;\n\n constructor(\n public override root: HTMLButtonElement,\n foundation?: MDCSwitchRenderFoundation) {\n super(root, foundation);\n }\n\n override initialize() {\n this.ripple = new MDCRipple(this.root, this.createRippleFoundation());\n }\n\n override initialSyncWithDOM() {\n const rippleElement = this.root.querySelector(Selectors.RIPPLE);\n if (!rippleElement) {\n throw new Error(`Switch ${Selectors.RIPPLE} element is required.`);\n }\n\n this.rippleElement = rippleElement;\n this.root.addEventListener('click', this.foundation.handleClick);\n this.foundation.initFromDOM();\n }\n\n override destroy() {\n super.destroy();\n this.ripple.destroy();\n this.root.removeEventListener('click', this.foundation.handleClick);\n }\n\n override getDefaultFoundation() {\n return new MDCSwitchRenderFoundation(this.createAdapter());\n }\n\n protected createAdapter(): MDCSwitchRenderAdapter {\n return {\n addClass: className => {\n this.root.classList.add(className)\n },\n hasClass: className => this.root.classList.contains(className),\n isDisabled: () => this.root.disabled,\n removeClass: className => {\n this.root.classList.remove(className);\n },\n setAriaChecked: ariaChecked =>\n this.root.setAttribute('aria-checked', ariaChecked),\n setDisabled: disabled => {\n this.root.disabled = disabled;\n },\n state: this,\n };\n }\n\n protected createRippleFoundation() {\n return new MDCRippleFoundation(this.createRippleAdapter());\n }\n\n protected createRippleAdapter(): MDCRippleAdapter {\n return {\n ...MDCRipple.createAdapter(this),\n computeBoundingRect: () => this.rippleElement.getBoundingClientRect(),\n isUnbounded: () => true,\n };\n }\n}\n","/**\n * @license\n * Copyright 2021 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\n/**\n * CSS classes used for switch.\n */\nexport enum CssClasses {\n PROCESSING = 'mdc-switch--processing',\n SELECTED = 'mdc-switch--selected',\n UNSELECTED = 'mdc-switch--unselected',\n}\n\n/**\n * Query selectors used for switch.\n */\nexport enum Selectors {\n RIPPLE = '.mdc-switch__ripple',\n}\n","/**\n * @license\n * Copyright 2018 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\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 MDCSwitchAdapter {\n /**\n * Adds a CSS class to the root element.\n */\n addClass(className: string): void;\n\n /**\n * Removes a CSS class from the root element.\n */\n removeClass(className: string): void;\n\n /**\n * Sets checked state of the native HTML control underlying the switch.\n */\n setNativeControlChecked(checked: boolean): void;\n\n /**\n * Sets the disabled state of the native HTML control underlying the switch.\n */\n setNativeControlDisabled(disabled: boolean): void;\n\n /**\n * Sets an attribute value of the native HTML control underlying the switch.\n */\n setNativeControlAttr(attr: string, value: string): void;\n}\n","/**\n * @license\n * Copyright 2018 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 {EventType, SpecificEventListener} from '@material/base/types';\nimport {applyPassive} from '@material/dom/events';\nimport {matches} from '@material/dom/ponyfill';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\nimport {MDCSwitchAdapter} from './adapter';\nimport {MDCSwitchFoundation} from './foundation';\n\nexport class MDCSwitch extends MDCComponent<MDCSwitchFoundation> implements MDCRippleCapableSurface {\n static override attachTo(root: HTMLElement) {\n return new MDCSwitch(root);\n }\n\n private readonly rippleSurface = this.createRipple();\n\n // Initialized in `initialSyncWithDOM`.\n private changeHandler!: EventListener;\n\n override destroy() {\n super.destroy();\n this.rippleSurface.destroy();\n this.nativeControl.removeEventListener('change', this.changeHandler);\n }\n\n override initialSyncWithDOM() {\n this.changeHandler = (...args) => {\n this.foundation.handleChange(...args);\n };\n this.nativeControl.addEventListener('change', this.changeHandler);\n\n // Sometimes the checked state of the input element is saved in the history.\n // The switch styling should match the checked state of the input element.\n // Do an initial sync between the native control and the foundation.\n this.checked = this.checked;\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 const adapter: MDCSwitchAdapter = {\n addClass: (className) => this.root.classList.add(className),\n removeClass: (className) => this.root.classList.remove(className),\n setNativeControlChecked: (checked) => this.nativeControl.checked =\n checked,\n setNativeControlDisabled: (disabled) => this.nativeControl.disabled =\n disabled,\n setNativeControlAttr: (attr, value) => {\n this.nativeControl.setAttribute(attr, value);\n },\n };\n return new MDCSwitchFoundation(adapter);\n }\n\n get ripple() {\n return this.rippleSurface;\n }\n\n get checked() {\n return this.nativeControl.checked;\n }\n\n set checked(checked) {\n this.foundation.setChecked(checked);\n }\n\n get disabled() {\n return this.nativeControl.disabled;\n }\n\n set disabled(disabled) {\n this.foundation.setDisabled(disabled);\n }\n\n private createRipple(): MDCRipple {\n const {RIPPLE_SURFACE_SELECTOR} = MDCSwitchFoundation.strings;\n const rippleSurface =\n this.root.querySelector(RIPPLE_SURFACE_SELECTOR) as HTMLElement;\n\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 const adapter: MDCRippleAdapter = {\n ...MDCRipple.createAdapter(this),\n addClass: (className: string) => rippleSurface.classList.add(className),\n computeBoundingRect: () => rippleSurface.getBoundingClientRect(),\n deregisterInteractionHandler: <K extends EventType>(\n evtType: K, handler: SpecificEventListener<K>) => {\n this.nativeControl.removeEventListener(\n evtType, handler, applyPassive());\n },\n isSurfaceActive: () => matches(this.nativeControl, ':active'),\n isUnbounded: () => true,\n registerInteractionHandler: <K extends EventType>(\n evtType: K, handler: SpecificEventListener<K>) => {\n this.nativeControl.addEventListener(evtType, handler, applyPassive());\n },\n removeClass: (className: string) => {\n rippleSurface.classList.remove(className);\n },\n updateCssVariable: (varName: string, value: string) => {\n rippleSurface.style.setProperty(varName, value);\n },\n };\n return new MDCRipple(this.root, new MDCRippleFoundation(adapter));\n }\n\n private get nativeControl() {\n const {NATIVE_CONTROL_SELECTOR} = MDCSwitchFoundation.strings;\n return this.root.querySelector(NATIVE_CONTROL_SELECTOR) as HTMLInputElement;\n }\n}\n","/**\n * @license\n * Copyright 2018 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\n/** CSS classes used by the switch. */\nconst cssClasses = {\n /** Class used for a switch that is in the \"checked\" (on) position. */\n CHECKED: 'mdc-switch--checked',\n /** Class used for a switch that is disabled. */\n DISABLED: 'mdc-switch--disabled',\n};\n\n/** String constants used by the switch. */\nconst strings = {\n /** Aria attribute for checked or unchecked state of switch */\n ARIA_CHECKED_ATTR: 'aria-checked',\n /** A CSS selector used to locate the native HTML control for the switch. */\n NATIVE_CONTROL_SELECTOR: '.mdc-switch__native-control',\n /** A CSS selector used to locate the ripple surface element for the switch. */\n RIPPLE_SURFACE_SELECTOR: '.mdc-switch__thumb-underlay',\n};\n\nexport {cssClasses, strings};\n","/**\n * @license\n * Copyright 2018 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 {MDCSwitchAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCSwitchFoundation extends MDCFoundation<MDCSwitchAdapter> {\n /** The string constants used by the switch. */\n static override get strings() {\n return strings;\n }\n\n /** The CSS classes used by the switch. */\n static override get cssClasses() {\n return cssClasses;\n }\n\n /** The default Adapter for the switch. */\n static override get defaultAdapter(): MDCSwitchAdapter {\n return {\n addClass: () => undefined,\n removeClass: () => undefined,\n setNativeControlChecked: () => undefined,\n setNativeControlDisabled: () => undefined,\n setNativeControlAttr: () => undefined,\n };\n }\n\n constructor(adapter?: Partial<MDCSwitchAdapter>) {\n super({...MDCSwitchFoundation.defaultAdapter, ...adapter});\n }\n\n /** Sets the checked state of the switch. */\n setChecked(checked: boolean) {\n this.adapter.setNativeControlChecked(checked);\n this.updateAriaChecked(checked);\n this.updateCheckedStyling(checked);\n }\n\n /** Sets the disabled state of the switch. */\n setDisabled(disabled: boolean) {\n this.adapter.setNativeControlDisabled(disabled);\n if (disabled) {\n this.adapter.addClass(cssClasses.DISABLED);\n } else {\n this.adapter.removeClass(cssClasses.DISABLED);\n }\n }\n\n /** Handles the change event for the switch native control. */\n handleChange(evt: Event) {\n const nativeControl = evt.target as HTMLInputElement;\n this.updateAriaChecked(nativeControl.checked);\n this.updateCheckedStyling(nativeControl.checked);\n }\n\n /** Updates the styling of the switch based on its checked state. */\n private updateCheckedStyling(checked: boolean) {\n if (checked) {\n this.adapter.addClass(cssClasses.CHECKED);\n } else {\n this.adapter.removeClass(cssClasses.CHECKED);\n }\n }\n\n private updateAriaChecked(checked: boolean) {\n this.adapter.setNativeControlAttr(\n strings.ARIA_CHECKED_ATTR, `${!!checked}`);\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 MDCSwitchFoundation;\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","/**\n * @license\n * Copyright 2021 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 {MDCObserverFoundation} from '@material/base/observer-foundation';\n\nimport {MDCSwitchAdapter, MDCSwitchRenderAdapter} from './adapter';\nimport {CssClasses} from './constants';\n\n/**\n * `MDCSwitchFoundation` provides a state-only foundation for a switch\n * component.\n *\n * State observers and event handler entrypoints update a component's adapter's\n * state with the logic needed for switch to function.\n */\nexport class MDCSwitchFoundation extends\n MDCObserverFoundation<MDCSwitchAdapter> {\n constructor(adapter: MDCSwitchAdapter) {\n super(adapter);\n this.handleClick = this.handleClick.bind(this);\n }\n\n /**\n * Initializes the foundation and starts observing state changes.\n */\n override init() {\n this.observe(this.adapter.state, {\n disabled: this.stopProcessingIfDisabled,\n processing: this.stopProcessingIfDisabled,\n });\n }\n\n /**\n * Event handler for switch click events. Clicking on a switch will toggle its\n * selected state.\n */\n handleClick() {\n if (this.adapter.state.disabled) {\n return;\n }\n\n this.adapter.state.selected = !this.adapter.state.selected;\n }\n\n protected stopProcessingIfDisabled() {\n if (this.adapter.state.disabled) {\n this.adapter.state.processing = false;\n }\n }\n}\n/**\n * `MDCSwitchRenderFoundation` provides a state and rendering foundation for a\n * switch component.\n *\n * State observers and event handler entrypoints update a component's\n * adapter's state with the logic needed for switch to function.\n *\n * In response to state changes, the rendering foundation uses the component's\n * render adapter to keep the component's DOM updated with the state.\n */\nexport class MDCSwitchRenderFoundation extends MDCSwitchFoundation {\n protected override adapter!: MDCSwitchRenderAdapter;\n\n /**\n * Initializes the foundation and starts observing state changes.\n */\n override init() {\n super.init();\n this.observe(this.adapter.state, {\n disabled: this.onDisabledChange,\n processing: this.onProcessingChange,\n selected: this.onSelectedChange,\n })\n }\n\n /**\n * Initializes the foundation from a server side rendered (SSR) component.\n * This will sync the adapter's state with the current state of the DOM.\n *\n * This method should be called after `init()`.\n */\n initFromDOM() {\n // Turn off observers while setting state\n this.setObserversEnabled(this.adapter.state, false);\n\n this.adapter.state.selected = this.adapter.hasClass(CssClasses.SELECTED);\n // Ensure aria-checked is set if attribute is not present\n this.onSelectedChange();\n this.adapter.state.disabled = this.adapter.isDisabled();\n this.adapter.state.processing =\n this.adapter.hasClass(CssClasses.PROCESSING);\n\n // Re-observe state\n this.setObserversEnabled(this.adapter.state, true);\n this.stopProcessingIfDisabled();\n }\n\n protected onDisabledChange() {\n this.adapter.setDisabled(this.adapter.state.disabled);\n }\n\n protected onProcessingChange() {\n this.toggleClass(this.adapter.state.processing, CssClasses.PROCESSING);\n }\n\n protected onSelectedChange() {\n this.adapter.setAriaChecked(String(this.adapter.state.selected));\n this.toggleClass(this.adapter.state.selected, CssClasses.SELECTED);\n this.toggleClass(!this.adapter.state.selected, CssClasses.UNSELECTED);\n }\n\n private toggleClass(addClass: boolean, className: CssClasses) {\n if (addClass) {\n this.adapter.addClass(className);\n } else {\n this.adapter.removeClass(className);\n }\n }\n}\n","/**\n * @license\n * Copyright 2021 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\n// TODO(b/185410690): remove deprecated export\nimport * as deprecated from './deprecated';\nexport {deprecated};\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n"],"sourceRoot":""} |