mirror of
https://github.com/squidfunk/mkdocs-material.git
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91 lines
2.6 KiB
TypeScript
91 lines
2.6 KiB
TypeScript
/*
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* Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/* ----------------------------------------------------------------------------
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* Helper types
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* ------------------------------------------------------------------------- */
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/**
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* Global augmentations
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*/
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declare global {
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interface CSSStyleDeclaration {
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webkitOverflowScrolling: "touch" | ""
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}
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}
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/* ----------------------------------------------------------------------------
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* Functions
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* ------------------------------------------------------------------------- */
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/**
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* Set overflow scrolling
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*
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* @param el - Scrollable element
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*/
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export function setOverflowScrolling(
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el: HTMLElement
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): void {
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el.style.webkitOverflowScrolling = "touch"
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}
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/**
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* Reset overflow scrolling
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*
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* @param el - Scrollable element
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*/
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export function resetOverflowScrolling(
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el: HTMLElement
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): void {
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el.style.webkitOverflowScrolling = ""
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}
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/* ------------------------------------------------------------------------- */
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/**
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* Set scroll lock
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*
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* @param el - Scrollable element
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* @param value - Vertical offset
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*/
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export function setScrollLock(
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el: HTMLElement, value: number
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): void {
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el.setAttribute("data-md-state", "lock")
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el.style.top = `-${value}px`
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}
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/**
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* Reset scroll lock
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*
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* @param el - Scrollable element
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*/
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export function resetScrollLock(
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el: HTMLElement
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): void {
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const value = -1 * parseInt(el.style.top, 10)
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el.removeAttribute("data-md-state")
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el.style.top = ""
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if (value)
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window.scrollTo(0, value)
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}
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