MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */
/**
 * Keep code in MediaWiki:Common.js to a minimum as it is unconditionally
 * loaded for all users on every wiki page. If possible create a gadget that is
 * enabled by default instead of adding it here (since gadgets are fully
 * optimized ResourceLoader modules with possibility to add dependencies etc.)
 *
 * Since Common.js isn't a gadget, there is no place to declare its
 * dependencies, so we have to lazy load them with mw.loader.using on demand and
 * then execute the rest in the callback. In most cases these dependencies will
 * be loaded (or loading) already and the callback will not be delayed. In case a
 * dependency hasn't arrived yet it'll make sure those are loaded before this.
 */

/* global mw, $ */
/* jshint strict:false, browser:true */

mw.loader.using( [ 'mediawiki.util' ] ).done( function () {
	/* Begin of mw.loader.using callback */

	/**
	 * Main Page layout fixes
	 *
	 * Description: Adds an additional link to the complete list of languages available.
	 * Maintainers: [[User:AzaToth]], [[User:R. Koot]], [[User:Alex Smotrov]]
	 */
	if ( mw.config.get( 'wgPageName' ) === 'Main_Page' || mw.config.get( 'wgPageName' ) === 'Talk:Main_Page' ) {
		$( function () {
			mw.util.addPortletLink( 'p-lang', '//meta.bharatmedia.org/wiki/List_of_Bharatpedias',
				'Complete list', 'interwiki-completelist', 'Complete list of Bharatpedias' );
		} );
	}

	/**
	 * Map addPortletLink to mw.util
	 * @deprecated: Use mw.util.addPortletLink instead.
	 */
	mw.log.deprecate( window, 'addPortletLink', mw.util.addPortletLink, 'Use mw.util.addPortletLink instead' );

	/**
	 * Extract a URL parameter from the current URL
	 * @deprecated: Use mw.util.getParamValue with proper escaping
	 */
	mw.log.deprecate( window, 'getURLParamValue', mw.util.getParamValue, 'Use mw.util.getParamValue instead' );

	/**
	 * Test if an element has a certain class
	 * @deprecated:  Use $(element).hasClass() instead.
	 */
	mw.log.deprecate( window, 'hasClass', function ( element, className ) {
		return $( element ).hasClass( className );
	}, 'Use jQuery.hasClass() instead' );

	/**
	 * @source www.mediawiki.org/wiki/Snippets/Load_JS_and_CSS_by_URL
	 * @rev 6
	 */
	var extraCSS = mw.util.getParamValue( 'withCSS' ),
		extraJS = mw.util.getParamValue( 'withJS' );

	if ( extraCSS ) {
		if ( extraCSS.match( /^MediaWiki:[^&<>=%#]*\.css$/ ) ) {
			mw.loader.load( '/index.php?title=' + extraCSS + '&action=raw&ctype=text/css', 'text/css' );
		} else {
			mw.notify( 'Only pages from the MediaWiki namespace are allowed.', { title: 'Invalid withCSS value' } );
		}
	}

	if ( extraJS ) {
		if ( extraJS.match( /^MediaWiki:[^&<>=%#]*\.js$/ ) ) {
			mw.loader.load( '/index.php?title=' + extraJS + '&action=raw&ctype=text/javascript' );
		} else {
			mw.notify( 'Only pages from the MediaWiki namespace are allowed.', { title: 'Invalid withJS value' } );
		}
	}

	/**
	 * Collapsible tables; reimplemented with mw-collapsible
	 * Styling is also in place to avoid FOUC
	 *
	 * Allows tables to be collapsed, showing only the header. See [[Help:Collapsing]].
	 * @version 3.0.0 (2018-05-20)
	 * @source https://www.mediawiki.org/wiki/MediaWiki:Gadget-collapsibleTables.js
	 * @author [[User:R. Koot]]
	 * @author [[User:Krinkle]]
	 * @author [[User:TheDJ]]
	 * @deprecated Since MediaWiki 1.20: Use class="mw-collapsible" instead which
	 * is supported in MediaWiki core. Shimmable since MediaWiki 1.32
	 *
	 * @param {jQuery} $content
	 */
	function makeCollapsibleMwCollapsible( $content ) {
		var $tables = $content
			.find( 'table.collapsible:not(.mw-collapsible)' )
			.addClass( 'mw-collapsible' );

		$.each( $tables, function ( index, table ) {
			// mw.log.warn( 'This page is using the deprecated class collapsible. Please replace it with mw-collapsible.');
			if ( $( table ).hasClass( 'collapsed' ) ) {
				$( table ).addClass( 'mw-collapsed' );
				// mw.log.warn( 'This page is using the deprecated class collapsed. Please replace it with mw-collapsed.');
			}
		} );
		if ( $tables.length > 0 ) {
			mw.loader.using( 'jquery.makeCollapsible' ).then( function () {
				$tables.makeCollapsible();
			} );
		}
	}
	mw.hook( 'wikipage.content' ).add( makeCollapsibleMwCollapsible );

	/**
	 * Add support to mw-collapsible for autocollapse, innercollapse and outercollapse
	 *
	 * Maintainers: TheDJ
	 */
	function mwCollapsibleSetup( $collapsibleContent ) {
		var $element,
			$toggle,
			autoCollapseThreshold = 2;
		$.each( $collapsibleContent, function ( index, element ) {
			$element = $( element );
			if ( $element.hasClass( 'collapsible' ) ) {
				$element.find( 'tr:first > th:first' ).prepend( $element.find( 'tr:first > * > .mw-collapsible-toggle' ) );
			}
			if ( $collapsibleContent.length >= autoCollapseThreshold && $element.hasClass( 'autocollapse' ) ) {
				$element.data( 'mw-collapsible' ).collapse();
			} else if ( $element.hasClass( 'innercollapse' ) ) {
				if ( $element.parents( '.outercollapse' ).length > 0 ) {
					$element.data( 'mw-collapsible' ).collapse();
				}
			}
			// because of colored backgrounds, style the link in the text color
			// to ensure accessible contrast
			$toggle = $element.find( '.mw-collapsible-toggle' );
			if ( $toggle.length ) {
				// Make the toggle inherit text color
				if ( $toggle.parent()[ 0 ].style.color ) {
					$toggle.find( 'a' ).css( 'color', 'inherit' );
				}
			}
		} );
	}

	mw.hook( 'wikipage.collapsibleContent' ).add( mwCollapsibleSetup );

	/**
	 * Dynamic Navigation Bars (experimental)
	 *
	 * Description: See [[Wikipedia:NavFrame]].
	 * Maintainers: UNMAINTAINED
	 */

	var collapseCaption = 'hide';
	var expandCaption = 'show';

	// Set up the words in your language
	var navigationBarHide = '[' + collapseCaption + ']';
	var navigationBarShow = '[' + expandCaption + ']';

	/**
	 * Shows and hides content and picture (if available) of navigation bars.
	 *
	 * @param {number} indexNavigationBar The index of navigation bar to be toggled
	 * @param {jQuery.Event} event Event object
	 * @return {boolean}
	 */
	function toggleNavigationBar( indexNavigationBar, event ) {
		var navToggle = document.getElementById( 'NavToggle' + indexNavigationBar );
		var navFrame = document.getElementById( 'NavFrame' + indexNavigationBar );
		var navChild;

		if ( !navFrame || !navToggle ) {
			return false;
		}

		// If shown now
		if ( navToggle.firstChild.data === navigationBarHide ) {
			for ( navChild = navFrame.firstChild; navChild !== null; navChild = navChild.nextSibling ) {
				if ( $( navChild ).hasClass( 'NavContent' ) ) {
					navChild.style.display = 'none';
				}
			}
			navToggle.firstChild.data = navigationBarShow;

		// If hidden now
		} else if ( navToggle.firstChild.data === navigationBarShow ) {
			for ( navChild = navFrame.firstChild; navChild !== null; navChild = navChild.nextSibling ) {
				if ( $( navChild ).hasClass( 'NavContent' ) ) {
					navChild.style.display = 'block';
				}
			}
			navToggle.firstChild.data = navigationBarHide;
		}

		event.preventDefault();
	}

	/**
	 * Adds show/hide-button to navigation bars.
	 *
	 * @param {jQuery} $content
	 */
	function createNavigationBarToggleButton( $content ) {
		var j, navChild, navToggle, navToggleText, isCollapsed,
			indexNavigationBar = 0;
		// Iterate over all < div >-elements
		var $divs = $content.find( 'div.NavFrame:not(.mw-collapsible)' );
		$divs.each( function ( i, navFrame ) {
			indexNavigationBar++;
			navToggle = document.createElement( 'a' );
			navToggle.className = 'NavToggle';
			navToggle.setAttribute( 'id', 'NavToggle' + indexNavigationBar );
			navToggle.setAttribute( 'href', '#' );
			$( navToggle ).on( 'click', $.proxy( toggleNavigationBar, null, indexNavigationBar ) );

			isCollapsed = $( navFrame ).hasClass( 'collapsed' );
			/**
			 * Check if any children are already hidden.  This loop is here for backwards compatibility:
			 * the old way of making NavFrames start out collapsed was to manually add style="display:none"
			 * to all the NavPic/NavContent elements.  Since this was bad for accessibility (no way to make
			 * the content visible without JavaScript support), the new recommended way is to add the class
			 * "collapsed" to the NavFrame itself, just like with collapsible tables.
			 */
			for ( navChild = navFrame.firstChild; navChild !== null && !isCollapsed; navChild = navChild.nextSibling ) {
				if ( $( navChild ).hasClass( 'NavPic' ) || $( navChild ).hasClass( 'NavContent' ) ) {
					if ( navChild.style.display === 'none' ) {
						isCollapsed = true;
					}
				}
			}
			if ( isCollapsed ) {
				for ( navChild = navFrame.firstChild; navChild !== null; navChild = navChild.nextSibling ) {
					if ( $( navChild ).hasClass( 'NavPic' ) || $( navChild ).hasClass( 'NavContent' ) ) {
						navChild.style.display = 'none';
					}
				}
			}
			navToggleText = document.createTextNode( isCollapsed ? navigationBarShow : navigationBarHide );
			navToggle.appendChild( navToggleText );

			// Find the NavHead and attach the toggle link (Must be this complicated because Moz's firstChild handling is borked)
			for ( j = 0; j < navFrame.childNodes.length; j++ ) {
				if ( $( navFrame.childNodes[ j ] ).hasClass( 'NavHead' ) ) {
					navToggle.style.color = navFrame.childNodes[ j ].style.color;
					navFrame.childNodes[ j ].appendChild( navToggle );
				}
			}
			navFrame.setAttribute( 'id', 'NavFrame' + indexNavigationBar );
		} );
	}

	mw.hook( 'wikipage.content' ).add( createNavigationBarToggleButton );

	/**
	 * Magic editintros ****************************************************
	 *
	 * Description: Adds editintros on disambiguation pages and BLP pages.
	 * Maintainers: [[User:RockMFR]]
	 *
	 * @param {string} name
	 */
	function addEditIntro( name ) {
		$( '.mw-editsection, #ca-edit, #ca-ve-edit' ).find( 'a' ).each( function ( i, el ) {
			el.href = $( this ).attr( 'href' ) + '&editintro=' + name;
		} );
	}

	if ( mw.config.get( 'wgNamespaceNumber' ) === 0 ) {
		$( function () {
			if ( document.getElementById( 'disambigbox' ) ) {
				addEditIntro( 'Template:Disambig_editintro' );
			}
		} );

		$( function () {
			var cats = mw.config.get( 'wgCategories' );
			if ( !cats ) {
				return;
			}
			if ( $.inArray( 'Living people', cats ) !== -1 || $.inArray( 'Possibly living people', cats ) !== -1 ) {
				addEditIntro( 'Template:BLP_editintro' );
			}
		} );
	}

	/* Actions specific to the edit page */
	if ( mw.config.get( 'wgAction' ) === 'edit' || mw.config.get( 'wgAction' ) === 'submit' ) {
		/**
		 * Fix edit summary prompt for undo
		 *
		 *  Fixes the fact that the undo function combined with the "no edit summary prompter"
		 *  complains about missing editsummary, if leaving the edit summary unchanged.
		 *  Added by [[User:Deskana]], code by [[User:Tra]].
		 *  See also [[phab:T10912]].
		 */
		$( function () {
			if ( document.location.search.indexOf( 'undo=' ) !== -1 && document.getElementsByName( 'wpAutoSummary' )[ 0 ] ) {
				document.getElementsByName( 'wpAutoSummary' )[ 0 ].value = '1';
			}
		} );
	}

	/* End of mw.loader.using callback */
} );

mw.hook('wikipage.content').add(function(){

    const page =
    mw.config.get('wgPageName');

    if(
        page !== 'User:WikiDwarf/Sandbox'
    ){
        return;
    }

    buildBharatpediaHomepage();

});

async function buildBharatpediaHomepage(){

    const root =
    document.querySelector('#bp-homepage');

    if(!root){
        return;
    }

    root.innerHTML = `

    <div class="bp-shell">

        <main class="bp-main">

            <div id="bp-hero"></div>

            <div id="bp-good-grid"></div>

            <div id="bp-feed"></div>

        </main>

        <aside class="bp-sidebar">

            <div class="bp-side-card">

                <div class="bp-side-head">

                    <h3>
                        On this day
                    </h3>

                    <div class="bp-arrows">

                        <button id="bp-otd-prev">
                            ←
                        </button>

                        <button id="bp-otd-next">
                            →
                        </button>

                    </div>

                </div>

                <div id="bp-on-this-day">

                    <div class="bp-otd-item">

                        <b>1975</b>

                        Sikkim officially became
                        a state of India.

                    </div>

                    <div class="bp-otd-item">

                        <b>1861</b>

                        Rabindranath Tagore
                        was born in Kolkata.

                    </div>

                    <div class="bp-otd-item">

                        <b>2008</b>

                        India expanded its
                        lunar mission programme.

                    </div>

                </div>

            </div>

            <div class="bp-side-card">

                <h3>
                    Bookmarks
                </h3>

                <div class="bp-side-text">

                    Sign in to save articles
                    and read them later.

                </div>

            </div>

            <div class="bp-side-card">

                <h3>
                    Top categories
                </h3>

                <div id="bp-categories"></div>

            </div>

        </aside>

    </div>

    `;

    buildHero();
    buildGoodCards();

    await buildTrendingFeed();
    await buildRecentFeed();

    buildCategories();
    initOnThisDay();

}

function randomItems(sourceId,count){

    const source =
    document.querySelector(sourceId);

    if(!source){
        return [];
    }

    const items = [
        ...source.querySelectorAll(
            'li'
        )
    ];

    return items
        .sort(()=>0.5-Math.random())
        .slice(0,count);

}

function buildHero(){

    const items =
    randomItems(
        '#bp-featured-source',
        1
    );

    if(!items.length){
        return;
    }

    const item = items[0];

    const img =
    item.querySelector('img')?.src || '';

    const title =
    item.querySelector('a')?.textContent ||
    'Featured article';

    const text =
    item.textContent
    .trim()
    .substring(0,280);

    document.querySelector(
        '#bp-hero'
    ).innerHTML = `

    <article class="bp-hero">

        <div class="bp-hero-content">

            <div class="bp-label">

                Featured article

            </div>

            <h1 class="bp-hero-title">

                ${title}

            </h1>

            <div class="bp-desc">

                ${text}...

            </div>

            <div class="bp-meta">

                <span>
                    Bharatpedia
                </span>

                <span>
                    Featured
                </span>

            </div>

        </div>

        <div class="bp-hero-image">

            <img src="${img}">

        </div>

    </article>

    `;

}

function buildGoodCards(){

    const items =
    randomItems(
        '#bp-good-source',
        2
    );

    let html =
    '<div class="bp-two-grid">';

    items.forEach(item=>{

        const img =
        item.querySelector('img')?.src || '';

        const title =
        item.querySelector('a')?.textContent ||
        'Article';

        const text =
        item.textContent
        .trim()
        .substring(0,120);

        html += `

        <article class="bp-card">

            <div class="bp-card-img">

                <img src="${img}">

            </div>

            <div class="bp-label">

                Good article

            </div>

            <div class="bp-card-title">

                ${title}

            </div>

            <div class="bp-desc">

                ${text}...

            </div>

        </article>

        `;

    });

    html += '</div>';

    document.querySelector(
        '#bp-good-grid'
    ).innerHTML = html;

}

async function buildTrendingFeed(){

    const feed =
    document.querySelector('#bp-feed');

    const res =
    await fetch(

        mw.util.wikiScript('api') +

        '?action=query&list=recentchanges' +
        '&rcnamespace=0' +
        '&rclimit=6' +
        '&format=json' +
        '&origin=*'

    );

    const data =
    await res.json();

    data.query.recentchanges.forEach((item,i)=>{

        const large =
        i % 4 === 0;

        feed.innerHTML += `

        <article class="${
            large
            ? 'bp-feed-large'
            : 'bp-feed-card'
        }">

            <div class="${
                large
                ? 'bp-feed-large-content'
                : 'bp-feed-content'
            }">

                <div class="bp-label">

                    Trending

                </div>

                <div class="${
                    large
                    ? 'bp-feed-large-title'
                    : 'bp-feed-title'
                }">

                    ${item.title}

                </div>

                <div class="bp-desc">

                    Trending across Bharatpedia
                    readers today.

                </div>

                <div class="bp-meta">

                    <span>
                        Popular now
                    </span>

                </div>

            </div>

            <div class="${
                large
                ? 'bp-feed-large-img'
                : 'bp-feed-img'
            }">

                <img src="
                https://picsum.photos/900/700?random=${
                    Math.random()
                }
                ">

            </div>

        </article>

        `;

    });

}

async function buildRecentFeed(){

    const feed =
    document.querySelector('#bp-feed');

    const res =
    await fetch(

        mw.util.wikiScript('api') +

        '?action=query&list=recentchanges' +
        '&rctype=new' +
        '&rcnamespace=0' +
        '&rclimit=6' +
        '&format=json' +
        '&origin=*'

    );

    const data =
    await res.json();

    const items =
    randomItems(
        '#bp-featured-list-source',
        2
    );

    let html =
    '<div class="bp-two-grid">';

    items.forEach(item=>{

        const img =
        item.querySelector('img')?.src || '';

        const title =
        item.querySelector('a')?.textContent ||
        'Featured list';

        const text =
        item.textContent
        .trim()
        .substring(0,120);

        html += `

        <article class="bp-card">

            <div class="bp-card-img">

                <img src="${img}">

            </div>

            <div class="bp-label">

                Featured list

            </div>

            <div class="bp-card-title">

                ${title}

            </div>

            <div class="bp-desc">

                ${text}...

            </div>

        </article>

        `;

    });

    html += '</div>';

    feed.innerHTML += html;

    data.query.recentchanges.forEach(item=>{

        feed.innerHTML += `

        <article class="bp-feed-card">

            <div class="bp-feed-content">

                <div class="bp-label">

                    New article

                </div>

                <div class="bp-feed-title">

                    ${item.title}

                </div>

                <div class="bp-desc">

                    Recently created article
                    on Bharatpedia.

                </div>

                <div class="bp-meta">

                    <span>
                        Recently created
                    </span>

                </div>

            </div>

            <div class="bp-feed-img">

                <img src="
                https://picsum.photos/700/500?random=${
                    Math.random()
                }
                ">

            </div>

        </article>

        `;

    });

}

function buildCategories(){

    const cats = [

        ['Politics',1200],
        ['History',980],
        ['Science',850],
        ['Culture',760],
        ['Biography',650]

    ];

    const max =
    Math.max(...cats.map(c=>c[1]));

    let html='';

    cats.forEach(cat=>{

        html += `

        <div class="bp-cat">

            <div class="bp-cat-row">

                <span>
                    ${cat[0]}
                </span>

                <span>
                    ${cat[1]}
                </span>

            </div>

            <div class="bp-bar">

                <span style="
                    width:${
                        (cat[1]/max)*100
                    }%;
                "></span>

            </div>

        </div>

        `;

    });

    document.querySelector(
        '#bp-categories'
    ).innerHTML = html;

}

function initOnThisDay(){

    const items = [

        ...document.querySelectorAll(
            '.bp-otd-item'
        )

    ];

    let index = 0;

    items.forEach((item,i)=>{

        item.style.display =
        i === 0
        ? 'block'
        : 'none';

    });

    function show(){

        items.forEach((item,i)=>{

            item.style.display =
            i === index
            ? 'block'
            : 'none';

        });

    }

    document.querySelector(
        '#bp-otd-next'
    ).onclick = function(){

        index++;

        if(index >= items.length){
            index = 0;
        }

        show();

    };

    document.querySelector(
        '#bp-otd-prev'
    ).onclick = function(){

        index--;

        if(index < 0){
            index = items.length-1;
        }

        show();

    };

}
/* DO NOT ADD CODE BELOW THIS LINE */