/*global jQuery, mediaWiki */
(function( $, mw ) {
'use strict';
var PrintDialog = {
install: function () {
$( '#t-print a' )
.click( function ( e ) {
PrintDialog.open();
e.preventDefault();
} )
.text( 'Print page' );
},
open: function () {
var response,
$dialog,
dlgButtons = {};
dlgButtons.Print = function () {
$.each( PrintDialog.questions, function ( i, v ) {
response = $( '#PrintOption' + i ).val();
if ( v.type === 'checkbox' ) {
response = $( '#PrintOption' + i ).prop( 'checked' );
}
PrintDialog[v.returnvalue] = response;
} );
PrintDialog.changePrintCSS();
PrintDialog.otherEnhancements();
$(this).dialog( 'close' );
window.print();
if( !$.browser.opera ) {
/* Reload the page to fix the overridden stylesheets */
window.location = window.location;
}
};
dlgButtons.Cancel = function () {
$(this).dialog( 'close' );
};
$dialog = $( '<div></div>' )
.html( '<div id="PrintDialogContainer"></div>' )
.dialog( {
width: 600,
modal: true,
title: 'Print this page',
draggable: true,
dialogClass: 'wikiEditor-toolbar-dialog',
close: function () {
$(this).dialog( 'destroy' );
$(this).remove();
},
buttons: dlgButtons
} );
$.each( PrintDialog.questions, function ( i, v ) {
if( v.type === 'checkbox' &&
( v.returnvalue !== 'enhanced' || mw.config.get( 'wgUserName' ) === 'TheDJ' ) )
{
$( '#PrintDialogContainer' ).append( '<input type="checkbox" id="PrintOption' + i + '" ' + (v.checked ? 'checked' : '') + '>' + '<label for="PrintOption' + i + '">' + v.label + '</label><br>' );
}
} );
}, /* end open */
changePrintCSS: function () {
/* Here we:
- disable stylesheets that are print specific
- make screen specific stylesheets also enabled for print medium
- remove print specific stylerules
- make screen specific stylerules also enabled for print medium
*/
var printStyle = '';
if( this.enhanced === undefined ) {
var i, j, k,
rule,
hasPrint,
hasScreen,
rules,
stylesheet,
disabled,
stylesheets = document.styleSheets;
for( i = 0; i < stylesheets.length; i++ ) {
stylesheet = stylesheets[i];
disabled = false;
if( !stylesheet.media ) {
continue;
}
if( stylesheet.media.mediaText && stylesheet.media.mediaText.indexOf( 'print' ) !== -1 ) {
if(stylesheet.media.mediaText.indexOf( 'screen' ) === -1 ) {
stylesheet.disabled = true;
}
} else if( stylesheet.media.mediaText && stylesheet.media.mediaText.indexOf( 'screen' ) !== -1) {
if( stylesheet.media.mediaText.indexOf( 'print' ) === -1 ) {
try {
stylesheet.media.appendMedium( 'print' );
} catch( e ) {
stylesheet.media.mediaText += ',print';
}
}
}
/* now test individual stylesheet rules */
try {
rules = stylesheet.cssRules || stylesheet.rules;
} catch( e ) {
/* Cross domain issue. */
mw.log.warn( 'Not possible to correct stylesheet due to cross origin restrictions.' );
continue;
}
stylesheet.compatdelete = stylesheet.deleteRule || stylesheet.removeRule;
for( j = 0; rules && j < rules.length; j++ ) {
rule = rules[j];
hasPrint = false;
hasScreen = false;
if( rule.type === 4 && rule.media ) {
for( k = 0; k < rule.media.length; k++ ) {
if( rule.media[k] === 'print' ) {
hasPrint = true;
} else if (rule.media[k] === 'screen' ) {
hasScreen = true;
}
}
} else {
continue;
}
if( hasPrint && !hasScreen ) {
stylesheet.compatdelete( j );
j--;
} else if ( hasScreen && !hasPrint ) {
stylesheet.media.appendMedium( 'print' );
}
}
}
}
/* Add css to hide images */
if( this.noimages ) {
printStyle += 'img, .thumb {display:none;}\n';
}
/* Add css to hide references markers and the references lists */
if( this.norefs ) {
printStyle += '.mw-headline[id="References"], ol.references, .reference {display:none;}\n';
}
if( this.notoc ) {
printStyle += '#toc, .toc {display:none;}\n';
}
if( this.nobackground ) {
printStyle += '* {background:none !important;}\n';
}
if( this.blacktext ) {
printStyle += '* {color:black !important;}\n';
}
if ( printStyle ) {
$( 'head' ).append( '<style type="text/css" media="print">' + printStyle + '</style>' );
}
},
/* Rewrite the "retrieved from" url to be readable */
otherEnhancements: function () {
var link = $( 'div.printfooter a' );
link.text( decodeURI( link.text() ) );
},
questions: [
{
label: "Hide interface elements (You can only change this on Safari)",
type: "checkbox",
checked: true,
returnvalue: 'enhanced'
},
{
label: 'Hide images',
type: 'checkbox',
checked: false,
returnvalue: 'noimages'
},
{
label: 'Hide references',
type: 'checkbox',
checked: false,
returnvalue: 'norefs'
},
{
label: 'Hide Table of Contents',
type: 'checkbox',
checked: false,
returnvalue: 'notoc'
},
{
label: 'Remove backgrounds',
type: 'checkbox',
checked: false,
returnvalue: 'nobackground'
},
{
label: 'Force all text to black',
type: 'checkbox',
checked: true,
returnvalue: 'blacktext'
}
]
};
if ( mw.config.get( 'wgNamespaceNumber' ) >= 0 ) {
$( PrintDialog.install );
var $stylesheets = $('link[rel="stylesheet"]');
if ( mw.config.get( 'wgUserName' ) === 'TheDJ' && 'crossOrigin' in $stylesheets.get(0) ) {
$stylesheets.each( function( index, Element ) {
Element.crossOrigin = 'anonymous';
} );
}
}
} ) ( jQuery, mediaWiki );
