mirror of
https://github.com/codex-team/editor.js
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63eeec0f3b
Co-authored-by: George Berezhnoy <gohabereg@users.noreply.github.com> Co-authored-by: Georgy Berezhnoy <gohabereg@gmail.com> Co-authored-by: tasuku-s <tasuku@freemind.co.jp> Co-authored-by: Athul Anil Kumar <athul7744@outlook.com> Co-authored-by: Taly <vitalik7tv@yandex.ru> Co-authored-by: flaming-cl <51183663+flaming-cl@users.noreply.github.com> Co-authored-by: Nguyen Ngoc Son <sonnn.se@gmail.com> Co-authored-by: Sisir Das K <37764463+sis-dk@users.noreply.github.com> Co-authored-by: Sisir <sisir@hellosivi.com>
117 lines
3 KiB
TypeScript
117 lines
3 KiB
TypeScript
/**
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* @class MoveUpTune
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* @classdesc Editor's default tune that moves up selected block
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*
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* @copyright <CodeX Team> 2018
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*/
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import $ from '../dom';
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import { API, BlockTune } from '../../../types';
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/**
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*
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*/
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export default class MoveUpTune implements BlockTune {
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/**
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* Property that contains Editor.js API methods
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*
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* @see {@link docs/api.md}
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*/
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private readonly api: API;
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/**
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* Styles
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*
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* @type {{wrapper: string}}
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*/
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private CSS = {
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button: 'ce-settings__button',
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wrapper: 'ce-tune-move-up',
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animation: 'wobble',
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};
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/**
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* MoveUpTune constructor
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*
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* @param {API} api - Editor's API
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*/
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constructor({ api }) {
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this.api = api;
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}
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/**
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* Create "MoveUp" button and add click event listener
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*
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* @returns {HTMLElement}
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*/
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public render(): HTMLElement {
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const moveUpButton = $.make('div', [this.CSS.button, this.CSS.wrapper], {});
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moveUpButton.appendChild($.svg('arrow-up', 14, 14));
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this.api.listeners.on(
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moveUpButton,
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'click',
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(event) => this.handleClick(event as MouseEvent, moveUpButton),
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false
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);
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/**
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* Enable tooltip module on button
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*/
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this.api.tooltip.onHover(moveUpButton, this.api.i18n.t('Move up'));
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return moveUpButton;
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}
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/**
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* Move current block up
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*
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* @param {MouseEvent} event - click event
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* @param {HTMLElement} button - clicked button
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*/
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public handleClick(event: MouseEvent, button: HTMLElement): void {
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const currentBlockIndex = this.api.blocks.getCurrentBlockIndex();
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if (currentBlockIndex === 0) {
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button.classList.add(this.CSS.animation);
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window.setTimeout(() => {
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button.classList.remove(this.CSS.animation);
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}, 500);
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return;
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}
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const currentBlock = this.api.blocks.getBlockByIndex(currentBlockIndex);
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const currentBlockElement = currentBlock.holder;
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const previousBlock = this.api.blocks.getBlockByIndex(currentBlockIndex - 1);
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const previousBlockElement = previousBlock.holder;
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/**
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* Here is two cases:
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* - when previous block has negative offset and part of it is visible on window, then we scroll
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* by window's height and add offset which is mathematically difference between two blocks
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*
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* - when previous block is visible and has offset from the window,
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* than we scroll window to the difference between this offsets.
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*/
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const currentBlockCoords = currentBlockElement.getBoundingClientRect(),
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previousBlockCoords = previousBlockElement.getBoundingClientRect();
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let scrollUpOffset;
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if (previousBlockCoords.top > 0) {
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scrollUpOffset = Math.abs(currentBlockCoords.top) - Math.abs(previousBlockCoords.top);
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} else {
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scrollUpOffset = window.innerHeight - Math.abs(currentBlockCoords.top) + Math.abs(previousBlockCoords.top);
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}
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window.scrollBy(0, -1 * scrollUpOffset);
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/** Change blocks positions */
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this.api.blocks.move(currentBlockIndex - 1);
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/** Hide the Tooltip */
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this.api.tooltip.hide();
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}
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}
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