mediawiki-extensions-Popups/resources/ext.popups.renderer.article.js
Prateek Saxena e66ec613db article: Fix settings icon
1. Change color from #777 to #AAA
2. Add PNG fallback using `background-image-svg`

Bug: 69022
Change-Id: I0bbfe2aaa0c6e6ed1300bafa1352dd54037929b9
2014-08-19 22:22:21 +05:30

500 lines
13 KiB
JavaScript

( function ( $, mw ) {
'use strict';
/**
* @class mw.popups.render.article
* @singleton
*/
var article = {};
/**
* Size constants for popup images
* @property SIZES
*/
article.SIZES = {
portraitImage: {
h: 250, // Exact height
w: 203 // Max width
},
landscapeImage: {
h: 200, // Max height
w: 300 // Exact Width
},
landscapePopupWidth: 450, // Exact width of a landscape popup
portraitPopupWidth: 300 // Exact width of a portrait popup
};
/**
* Send an API request and cache the jQuery element
*
* @param {jQuery} link
* @return {jQuery.Promise}
*/
article.init = function ( link ) {
var
href = link.attr( 'href' ),
title = link.data( 'title' ),
deferred = $.Deferred();
if ( !title ) {
return deferred.reject().promise();
}
mw.popups.render.currentRequest = mw.popups.api.get( {
action: 'query',
prop: 'extracts|pageimages|revisions|info',
redirects: 'true',
exintro: 'true',
exsentences: 2,
// there is an added geometric limit on .mwe-popups-extract
// so that text does not overflow from the card
explaintext: 'true',
piprop: 'thumbnail',
pithumbsize: 300,
rvprop: 'timestamp',
inprop: 'watched',
indexpageids: true,
titles: title
} );
mw.popups.render.currentRequest.fail( deferred.reject );
mw.popups.render.currentRequest.done( function ( re ) {
mw.popups.render.currentRequest = undefined;
if (
!re.query ||
!re.query.pages ||
!re.query.pages[ re.query.pageids[ 0 ] ].extract ||
re.query.pages[ re.query.pageids[ 0 ] ].extract === ''
) {
deferred.reject();
return;
}
mw.popups.render.cache[ href ] = {};
mw.popups.render.cache[ href ].popup = article.createPopup( re, href );
mw.popups.render.cache[ href ].getOffset = article.getOffset;
mw.popups.render.cache[ href ].getClasses = article.getClasses;
mw.popups.render.cache[ href ].process = article.processPopup;
deferred.resolve();
} );
return deferred.promise();
};
/**
* Returns a thumbnail object based on the ratio of the image
* Uses an SVG image where available to add the triangle/pokey
* mask on the image. Crops and resizes the SVG image so that
* is fits inside a rectangle of a particular size.
*
* @method createPopup
* @param {Object} re
* @param {String} href
* @return {jQuery}
*/
article.createPopup = function ( re, href ) {
var $div,
page = re.query.pages[ re.query.pageids[ 0 ] ],
$contentbox = $( '<a>' )
.attr( 'href', href )
.addClass( 'mwe-popups-extract' )
.html(
article.getProcessedHtml( page.extract, page.title )
),
thumbnail = page.thumbnail,
tall = thumbnail && thumbnail.height > thumbnail.width,
$thumbnail = article.createThumbnail( thumbnail, tall ),
timestamp = new Date( page.revisions[ 0 ].timestamp ),
timediff = new Date() - timestamp,
oneDay = 1000 * 60 * 60 * 24,
timestampclass = ( timediff < oneDay ) ?
'mwe-popups-timestamp-recent' :
'mwe-popups-timestamp-older',
$settingsImage = $( '<a>' ).addClass( 'mwe-popups-settings-icon' ),
$timestamp = $( '<div>' )
.addClass( timestampclass )
.append(
$( '<span>' ).text( mw.message( 'popups-last-edited',
moment( timestamp ).fromNow() ).text() ),
$settingsImage
);
if ( $thumbnail.prop( 'tagName' ) !== 'SPAN' ) {
$thumbnail = $( '<a>' )
.addClass( 'mwe-popups-discreet' )
.attr( 'href', href )
.append( $thumbnail );
}
$div = $( '<div>' ).append( $thumbnail, $contentbox, $timestamp );
mw.popups.render.cache[ href ].settings = {
'tall': ( tall === undefined ) ? false : tall,
'thumbnail': ( thumbnail === undefined ) ? false : thumbnail
};
return $div;
};
/**
* Returns HTML extract after removing parentheses and making the title in
* the extract bold.
*
* @method getProcessedHtml
* @param {String} extract
* @param {String} title
* @return {String}
*/
article.getProcessedHtml = function ( extract, title ) {
title = title.replace( /([.?*+^$[\]\\(){}|-])/g, '\\$1' ); // Escape RegExp elements
var regExp = new RegExp( '(^|\\s)(' + title + ')(\\s|$)', 'ig' );
// Make title bold in the extract text
extract = extract.replace( regExp, '$1<b>$2</b>$3' );
// Remove text in parentheses along with the parentheses
extract = article.removeParensFromText( extract );
extract = extract.replace(/\s+/g, ' '); // Remove extra white spaces
return extract;
};
/**
* Removes content in parentheses from a string. Returns the original
* string as is if the parentheses are unbalanced or out or order. Does not
* remove extra spaces.
*
* @method removeParensFromText
* @param {String} string
* @return {String}
*/
article.removeParensFromText = function ( string ) {
var
ch,
newString = '',
level = 0,
i = 0;
for( i; i < string.length; i++ ) {
ch = string.charAt( i );
if ( ch === ')' && level === 0 ) {
return string;
}
if ( ch === '(' ) {
level++;
continue;
} else if ( ch === ')' ) {
level--;
continue;
}
if ( level === 0 ) {
newString += ch;
}
}
return ( level === 0 ) ? newString : string;
};
/**
* Use createElementNS to create the svg:image tag as jQuery
* uses createElement instead. Some browsers map the `image` tag
* to `img` tag, thus an `svg:image` is required.
*
* @method createSVGTag
* @param {String} tag
* @return {Object}
*/
article.createSVGTag = function ( tag ) {
return document.createElementNS( 'http://www.w3.org/2000/svg', tag );
};
/**
* Returns a thumbnail object based on the ratio of the image
* Uses an SVG image where available to add the triangle/pokey
* mask on the image. Crops and resizes the SVG image so that
* is fits inside a rectangle of a particular size.
*
* @method createThumbnail
* @param {Object} thumbnail
* @param {boolean} tall
* @return {Object} jQuery DOM element of the thumbnail
*/
article.createThumbnail = function ( thumbnail, tall ) {
var svg = mw.popups.supportsSVG;
if ( !thumbnail ) {
return $( '<span>' );
}
if ( tall && svg ) {
return article.createSvgImageThumbnail(
'mwe-popups-is-not-tall',
thumbnail.source,
( thumbnail.width > article.SIZES.portraitImage.w ) ?
( ( thumbnail.width - article.SIZES.portraitImage.w ) / -2 ) :
( article.SIZES.portraitImage.w - thumbnail.width ),
( thumbnail.height > article.SIZES.portraitImage.h ) ?
( ( thumbnail.height - article.SIZES.portraitImage.h ) / -2 ) :
0,
thumbnail.width,
thumbnail.height,
article.SIZES.portraitImage.w,
article.SIZES.portraitImage.h
);
}
if ( tall && !svg ) {
return article.createImgThumbnail( 'mwe-popups-is-tall', thumbnail.source );
}
if ( !tall && svg ) {
return article.createSvgImageThumbnail(
'mwe-popups-is-not-tall',
thumbnail.source,
0,
( thumbnail.height > article.SIZES.landscapeImage.h ) ?
( ( thumbnail.height - article.SIZES.landscapeImage.h ) / -2 ) :
0,
thumbnail.width,
thumbnail.height,
article.SIZES.landscapeImage.w + 3,
( thumbnail.height > article.SIZES.landscapeImage.h ) ?
article.SIZES.landscapeImage.h :
thumbnail.height,
'mwe-popups-mask'
);
}
if ( !tall && !svg ) {
return article.createImgThumbnail( 'mwe-popups-is-not-tall', thumbnail.source );
}
};
/**
* Returns the `svg:image` object for thumbnail
*
* @method createSvgImageThumbnail
* @param {String} className
* @param {String} url
* @param {Number} x
* @param {Number} y
* @param {Number} thumbnailWidth
* @param {Number} thumbnailHeight
* @param {Number} width
* @param {Number} height
* @param {String} clipPath
* @return {jQuery}
*/
article.createSvgImageThumbnail = function (
className, url, x, y, thumbnailWidth, thumbnailHeight, width, height, clipPath
) {
var $thumbnailSVGImage, $thumbnail;
$thumbnailSVGImage = $( article.createSVGTag( 'image' ) );
$thumbnailSVGImage
.addClass( className )
.attr( {
'xlink:href': url,
x: x,
y: y,
width: thumbnailWidth,
height: thumbnailHeight,
'clip-path': 'url(#' + clipPath + ')'
} );
$thumbnail = $( '<svg>' )
.attr( {
xmlns: 'http://www.w3.org/2000/svg',
width: width,
height: height
} )
.append( $thumbnailSVGImage );
return $thumbnail;
};
/**
* Returns the `img` object for thumbnail
*
* @method createImgThumbnail
* @param {String} className
* @param {String} url
* @return {jQuery}
*/
article.createImgThumbnail = function ( className, url ) {
return $( '<div>' )
.addClass( className )
.css( 'background-image', 'url(' + url + ')' );
};
/**
* Positions the popup based on the mouse position and popup size
* Default popup positioning is below and to the right of the mouse or link,
* unless flippedX or flippedY is true. flippedX and flippedY are cached.
*
* @method getOffset
* @param {jQuery} link
* @param {Object} event
* @return {Object} This can be passed to `.css()` to position the element
*/
article.getOffset = function ( link, event ) {
var
href = link.attr( 'href' ),
flippedX = false,
flippedY = false,
settings = mw.popups.render.cache[ href ].settings,
offsetTop = ( event.pageY ) ? // If it was a mouse event
// Position according to mouse
event.pageY + 20 :
// Position according to link position or size
link.offset().top + link.height() + 9,
clientTop = ( event.clientY ) ?
event.clientY :
offsetTop,
offsetLeft = ( event.pageX ) ?
event.pageX :
link.offset().left;
// X Flip
if ( offsetLeft > ( $( window ).width() / 2 ) ) {
offsetLeft += ( !event.pageX ) ? link.width() : 0;
offsetLeft -= ( !settings.tall ) ?
article.SIZES.portraitPopupWidth :
article.SIZES.landscapePopupWidth;
flippedX = true;
}
if ( event.pageX ) {
offsetLeft += ( flippedX ) ? 20 : -20;
}
mw.popups.render.cache[ href ].settings.flippedX = flippedX;
// Y Flip
if ( clientTop > ( $( window ).height() / 2 ) ) {
flippedY = true;
}
if ( event.pageY && flippedY ) {
offsetTop += 30;
}
mw.popups.render.cache[ href ].settings.flippedY = flippedY;
return {
top: offsetTop + 'px',
left: offsetLeft + 'px'
};
};
/**
* Returns an array of classes based on the size and setting of the popup
*
* @method getClassses
* @param {jQuery} link
* @return {Array} List of classes to applied to the parent `div`
*/
article.getClasses = function ( link ) {
var
classes = [],
cache = mw.popups.render.cache [ link.attr( 'href' ) ],
tall = cache.settings.tall,
thumbnail = cache.settings.thumbnail,
flippedY = cache.settings.flippedY,
flippedX = cache.settings.flippedX;
if ( flippedY ) {
classes.push( 'mwe-popups-fade-in-down' );
} else {
classes.push( 'mwe-popups-fade-in-up' );
}
if ( flippedY && flippedX ) {
classes.push( 'flipped_x_y' );
}
if ( flippedY && !flippedX ) {
classes.push( 'flipped_y' );
}
if ( flippedX && !flippedY ) {
classes.push( 'flipped_x' );
}
if ( ( !thumbnail || tall ) && !flippedY ) {
classes.push( 'mwe-popups-no-image-tri' );
}
if ( ( thumbnail && !tall ) && !flippedY ) {
classes.push( 'mwe-popups-image-tri' );
}
if ( tall ) {
classes.push( 'mwe-popups-is-tall' );
} else {
classes.push( 'mwe-popups-is-not-tall' );
}
return classes;
};
/**
* Processed the popup div after it has been displayed
* to correctly render the triangle/pokeys
*
* @method processPopups
* @param {jQuery} link
*/
article.processPopup = function ( link ) {
var
svg = mw.popups.supportsSVG,
cache = mw.popups.render.cache [ link.attr( 'href' ) ],
popup = mw.popups.$popup,
tall = cache.settings.tall,
thumbnail = cache.settings.thumbnail,
flippedY = cache.settings.flippedY,
flippedX = cache.settings.flippedX;
popup.find( '.mwe-popups-settings-icon' ).click( function () {
mw.popups.settings.open();
} );
if ( !svg && flippedY && !tall ) {
$( '.mwe-popups-extract' ).css( 'margin-top', '206px' );
}
if ( flippedY ) {
popup.css( {
top: popup.offset().top - ( popup.outerHeight() + 50 )
} );
}
if ( flippedY && thumbnail && svg ) {
mw.popups.$popup
.find( 'image' )[ 0 ]
.setAttribute( 'clip-path', '' );
}
if ( flippedY && flippedX && thumbnail && tall && svg ) {
mw.popups.$popup
.find( 'image' )[ 0 ]
.setAttribute( 'clip-path', 'url(#mwe-popups-landscape-mask-flip)' );
}
if ( flippedX && !flippedY && thumbnail && !tall && svg ) {
mw.popups.$popup
.find( 'image' )[ 0 ]
.setAttribute( 'clip-path', 'url(#mwe-popups-mask-flip)' );
}
if ( flippedX && !flippedY && thumbnail && tall && svg ) {
mw.popups.$popup
.removeClass( 'mwe-popups-no-image-tri' )
.find( 'image' )[ 0 ]
.setAttribute( 'clip-path', 'url(#mwe-popups-landscape-mask)' );
}
};
mw.popups.render.article = article;
} ) ( jQuery, mediaWiki );