diff options
Diffstat (limited to 'src/templates/assets/javascripts/browser/viewport/offset')
| -rw-r--r-- | src/templates/assets/javascripts/browser/viewport/offset/index.ts | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/src/templates/assets/javascripts/browser/viewport/offset/index.ts b/src/templates/assets/javascripts/browser/viewport/offset/index.ts deleted file mode 100644 index 63d37dd2..00000000 --- a/src/templates/assets/javascripts/browser/viewport/offset/index.ts +++ /dev/null @@ -1,78 +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 { - Observable, - fromEvent, - map, - merge, - startWith -} from "rxjs" - -/* ---------------------------------------------------------------------------- - * Types - * ------------------------------------------------------------------------- */ - -/** - * Viewport offset - */ -export interface ViewportOffset { - x: number /* Horizontal offset */ - y: number /* Vertical offset */ -} - -/* ---------------------------------------------------------------------------- - * Functions - * ------------------------------------------------------------------------- */ - -/** - * Retrieve viewport offset - * - * On iOS Safari, viewport offset can be negative due to overflow scrolling. - * As this may induce strange behaviors downstream, we'll just limit it to 0. - * - * @returns Viewport offset - */ -export function getViewportOffset(): ViewportOffset { - return { - x: Math.max(0, scrollX), - y: Math.max(0, scrollY) - } -} - -/* ------------------------------------------------------------------------- */ - -/** - * Watch viewport offset - * - * @returns Viewport offset observable - */ -export function watchViewportOffset(): Observable<ViewportOffset> { - return merge( - fromEvent(window, "scroll", { passive: true }), - fromEvent(window, "resize", { passive: true }) - ) - .pipe( - map(getViewportOffset), - startWith(getViewportOffset()) - ) -} |
