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-rw-r--r--src/templates/assets/javascripts/components/header/title/index.ts144
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diff --git a/src/templates/assets/javascripts/components/header/title/index.ts b/src/templates/assets/javascripts/components/header/title/index.ts
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--- a/src/templates/assets/javascripts/components/header/title/index.ts
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@@ -1,144 +0,0 @@
-/*
- * Copyright (c) 2016-2023 Martin Donath <martin.donath@squidfunk.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-import {
- EMPTY,
- Observable,
- Subject,
- defer,
- distinctUntilKeyChanged,
- finalize,
- map,
- tap
-} from "rxjs"
-
-import {
- Viewport,
- getElementSize,
- getOptionalElement,
- watchViewportAt
-} from "~/browser"
-
-import { Component } from "../../_"
-import { Header } from "../_"
-
-/* ----------------------------------------------------------------------------
- * Types
- * ------------------------------------------------------------------------- */
-
-/**
- * Header
- */
-export interface HeaderTitle {
- active: boolean /* Header title is active */
-}
-
-/* ----------------------------------------------------------------------------
- * Helper types
- * ------------------------------------------------------------------------- */
-
-/**
- * Watch options
- */
-interface WatchOptions {
- viewport$: Observable<Viewport> /* Viewport observable */
- header$: Observable<Header> /* Header observable */
-}
-
-/**
- * Mount options
- */
-interface MountOptions {
- viewport$: Observable<Viewport> /* Viewport observable */
- header$: Observable<Header> /* Header observable */
-}
-
-/* ----------------------------------------------------------------------------
- * Functions
- * ------------------------------------------------------------------------- */
-
-/**
- * Watch header title
- *
- * @param el - Heading element
- * @param options - Options
- *
- * @returns Header title observable
- */
-export function watchHeaderTitle(
- el: HTMLElement, { viewport$, header$ }: WatchOptions
-): Observable<HeaderTitle> {
- return watchViewportAt(el, { viewport$, header$ })
- .pipe(
- map(({ offset: { y } }) => {
- const { height } = getElementSize(el)
- return {
- active: y >= height
- }
- }),
- distinctUntilKeyChanged("active")
- )
-}
-
-/**
- * Mount header title
- *
- * This function swaps the header title from the site title to the title of the
- * current page when the user scrolls past the first headline.
- *
- * @param el - Header title element
- * @param options - Options
- *
- * @returns Header title component observable
- */
-export function mountHeaderTitle(
- el: HTMLElement, options: MountOptions
-): Observable<Component<HeaderTitle>> {
- return defer(() => {
- const push$ = new Subject<HeaderTitle>()
- push$.subscribe({
-
- /* Handle emission */
- next({ active }) {
- el.classList.toggle("md-header__title--active", active)
- },
-
- /* Handle complete */
- complete() {
- el.classList.remove("md-header__title--active")
- }
- })
-
- /* Obtain headline, if any */
- const heading = getOptionalElement(".md-content h1")
- if (typeof heading === "undefined")
- return EMPTY
-
- /* Create and return component */
- return watchHeaderTitle(heading, options)
- .pipe(
- tap(state => push$.next(state)),
- finalize(() => push$.complete()),
- map(state => ({ ref: el, ...state }))
- )
- })
-}