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// ==UserScript== |
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// @name Expand code blocks on Stack Exchange sites |
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// @namespace stackapps |
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// @version 1.1 |
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// @description Click a code block with scroll bars and it automatically expands |
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// @icon http://i.stack.imgur.com/EmeVj.png |
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// @match *://*.serverfault.com/questions* |
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// @match *://*.serverfault.com/review* |
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// @match *://*.stackapps.com/questions* |
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// @match *://*.stackapps.com/review* |
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// @match *://*.stackoverflow.com/questions* |
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// @match *://*.stackoverflow.com/review* |
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// @match *://*.superuser.com/questions* |
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// @match *://*.superuser.com/review* |
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// @match *://*.wordpress.stackexchange.com/questions* |
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// @match *://*.wordpress.stackexchange.com/review* |
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// @grant none |
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// @author Alconja |
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// @contributor brasofilo |
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// ==/UserScript== |
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/** |
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* Adapted from http://stackoverflow.com/a/8971716/1287812 |
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*/ |
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$.fn.has_scrollbar = function() { |
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var divnode = this.get(0); |
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if(divnode.scrollHeight > divnode.clientHeight || divnode.scrollWidth > divnode.clientWidth ) |
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return true; |
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}; |
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/** |
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* Expand <pre> |
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*/ |
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function expando( pre ) { |
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var maxHeight = null; |
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pre.css("z-index", 1000); |
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var code = pre.children("code"); |
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if (maxHeight === null) { |
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maxHeight = pre.css("max-height"); |
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if( pre.attr('max-height') === undefined ) |
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pre.attr('max-height',maxHeight); |
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} |
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var oldWidth = pre.width(); |
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var codeWidth = Math.max(code.width(), oldWidth); |
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var maxWidth = $(window).width() - 20; |
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var width = Math.min(maxWidth, codeWidth); |
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var maxLeft = (-1 * pre.offset().left) + 5; |
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var idealLeft = (oldWidth - width) / 4.5; |
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var left = Math.max(maxLeft, idealLeft); |
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pre.css({width: width + "px", position: "relative", left: left + "px", maxHeight: "inherit"}); |
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if (width < codeWidth) { //last ditch attempt to fit... |
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var pc = 100 * width / codeWidth; |
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pc = Math.max(pc, 70); //any smaller & you can't read it... |
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pre.css("font-size", pc + "%"); |
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} |
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} |
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/** |
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* Contract <pre> |
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*/ |
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function contracto( pre ) { |
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pre.css({width: "auto", position: "static", maxHeight: pre.attr('max-height'), fontSize: "100%"}); |
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} |
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/** |
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* Check page and add arrows |
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*/ |
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function addArrows() { |
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var count_pre = 1; |
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$('pre').each(function(){ |
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if( $(this).has_scrollbar() ) { |
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$(this).before('<span class="expander-arrow-small-hide" id="expander-id-' + count_pre + '" style="float:right"></span>'); |
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$('#expander-id-'+count_pre).click(function(){ |
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if( $(this).hasClass('expander-arrow-small-hide') ){ |
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expando( $(this).next() ); |
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if( location.host.indexOf('wordpress.stackexchange') > -1 ) { |
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$('#content').css('overflow','visible'); |
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} |
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$(this).removeClass('expander-arrow-small-hide').addClass('expander-arrow-small-show'); |
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} |
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else { |
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if( location.host.indexOf('wordpress.stackexchange') > -1 ) { |
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$('#content').css('overflow','auto'); |
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} |
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contracto( $(this).next() ); |
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$(this).removeClass('expander-arrow-small-show').addClass('expander-arrow-small-hide'); |
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} |
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}).css('cursor','pointer'); |
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count_pre++; |
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} |
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}); |
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} |
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/** |
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* Run when reviewing |
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*/ |
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if( StackExchange.options.routeName === 'Review/Task' ) { |
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$(document).ajaxComplete(function( event, xhr, settings ){ |
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if( settings.url.indexOf('review/task-reviewed') !== -1 || settings.url.indexOf('review/next-task') !== -1 ) { |
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addArrows(); |
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} |
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}); |
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} |
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/** |
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* Run when viewing a question |
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*/ |
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if( StackExchange.options.routeName == "Questions/Show" ) { |
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// Only SO has this property as visible, which is needed to fully expand the blocks |
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if( location.host.indexOf('stackoverflow.com') === -1 && location.host.indexOf('wordpress.stackexchange') === -1 ) { |
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if( $('#content').css('overflow') === 'auto' ) |
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$('#content').css('overflow','visible'); |
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} |
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addArrows(); |
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} |
