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Factor out functions in PinnableElement.js

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Splits the click handler for pinnable elements into
separate functions to reduce indentation and
maybe improve testability.

The click handler for pinnable elements is now
placed in a function called `togglePinnableElement()`
and attached to the click event via `.bind()`.

Class toggling is split into a separate
function called `togglePinnableClasses()` as well.

This should have no functional impact.

Change-Id: Ib27a469f6eb7e28360203d09db3315c6bde5c890
This commit is contained in:
Jan Drewniak 2022-12-16 14:15:56 -05:00 committed by Jdlrobson
parent bfeb729f84
commit 98c92edbba
1 changed files with 52 additions and 28 deletions
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80
resources/skins.vector.es6/pinnableElement.js
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@ -3,43 +3,67 @@ const PINNED_HEADER_CLASS = 'vector-pinnable-header-pinned';
const UNPINNED_HEADER_CLASS = 'vector-pinnable-header-unpinned';
/**
* Toggle classes on the body and pinnable element
*
* @param {HTMLElement} header pinnable element
*/
function togglePinnableClasses( header ) {
const { featureName, name } = header.dataset;
if ( featureName ) {
// Leverage features.js to toggle the body classes and persist the state
// for logged-in users.
features.toggle( featureName );
} else {
// Toggle body classes, assumes default pinned classes are initialized serverside
document.body.classList.toggle( `${name}-pinned` );
document.body.classList.toggle( `${name}-unpinned` );
}
// Toggle pinned class
header.classList.toggle( PINNED_HEADER_CLASS );
header.classList.toggle( UNPINNED_HEADER_CLASS );
}
/**
* Event handler that toggles the pinnable elements pinned state.
* Also moves the pinned element when those params are provided
* (via data attributes).
*
* @param {HTMLElement} header PinnableHeader element.
*/
function togglePinnableElement( header ) {
const {
pinnableElementId,
pinnedContainerId,
unpinnedContainerId
} = header.dataset;
togglePinnableClasses( header );
// Optional functionality of moving the pinnable element in the DOM
// to different containers based on it's pinned status
if ( pinnableElementId && pinnedContainerId && unpinnedContainerId ) {
const newContainerId = isPinned( header ) ? pinnedContainerId : unpinnedContainerId;
movePinnableElement( pinnableElementId, newContainerId );
}
}
/**
* Binds all the toggle buttons in a pinnableElement
* to the click handler that enables pinnability.
*
* @param {HTMLElement} header
*/
function bindPinnableToggleButtons( header ) {
const name = header.dataset.name;
if ( !name ) {
if ( !header.dataset.name ) {
return;
}
const toggleButtons = header.querySelectorAll( '.vector-pinnable-header-toggle-button' );
const pinnableElementId = header.dataset.pinnableElementId;
const pinnedContainerId = header.dataset.pinnedContainerId;
const unpinnedContainerId = header.dataset.unpinnedContainerId;
const featureName = header.dataset.featureName;
toggleButtons.forEach( function ( button ) {
button.addEventListener( 'click', () => {
if ( featureName ) {
// Leverage features.js to toggle the body classes and persist the state
// for logged-in users.
features.toggle( featureName );
} else {
// Toggle body classes, assumes default pinned classes are initialized serverside
document.body.classList.toggle( `${name}-pinned` );
document.body.classList.toggle( `${name}-unpinned` );
}
// Toggle pinned class
header.classList.toggle( PINNED_HEADER_CLASS );
header.classList.toggle( UNPINNED_HEADER_CLASS );
// Optional functionality of moving the pinnable element in the DOM
// to different containers based on it's pinned status
if ( pinnableElementId && pinnedContainerId && unpinnedContainerId ) {
const newContainerId = isPinned( header ) ? pinnedContainerId : unpinnedContainerId;
movePinnableElement( pinnableElementId, newContainerId );
}
} );
button.addEventListener( 'click', togglePinnableElement.bind( null, header ) );
} );
}