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| } ); | | } ); |
| } | | } |
|
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| $(function() {
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|
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| var
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| //add this class to all elements created by the script. the reason is that we call the script again on
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| //window resize, and use the class to remove all the "artefacts" we created in the previous run.
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| myClassName = 'imageMapHighlighterArtefacts',
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| liHighlightClass = 'liHighlighting',
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| specialAreaMark = 'area_mark',
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| specialLiClassesMark = 'list_classes',
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| specialAreaMarkFile = 'area_mark_file',
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| // "2d context" attributes used for highlighting.
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| areaHighLighting = {
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| fillStyle: 'rgba(0,0,0,0.35)',
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| strokeStyle: 'yellow',
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| lineJoin: 'round',
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| lineWidth: 2
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| },
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| //every imagemap that wants highlighting, should reside in a div of this 'class':
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| hilightDivMarker = '.imageMapHighlighter',
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| // specifically for wikis - redlinks tooltip adds this message
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| ru = mw && mw.config && mw.config.get('wgUserLanguage') == 'ru',
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| expandLegend = ru ? 'показать ссылки текстом' : 'sıyahını aç',
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| collapseLegend = ru ? 'скрыть ссылки текстом' : 'siyahını bağla',
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| files = [];
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|
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|
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| function drawMarker(context, areas) { // this is where the magic is done.
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|
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| function drawPoly(coords) {
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| context.moveTo(coords.shift(), coords.shift());
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| while (coords.length)
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| context.lineTo(coords.shift(), coords.shift());
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| }
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|
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| for (var i in areas) {
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| var coords = areas[i].coords.split(',');
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| context.beginPath();
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| switch (areas[i].shape) {
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| case 'rect':
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| drawPoly([coords[0], coords[1], coords[0], coords[3], coords[2], coords[
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| 3], coords[2], coords[1]]);
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| break;
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| case 'circle':
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| context.arc(coords[0], coords[1], coords[2], 0, Math.PI * 2);
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| break; //x,y,r,startAngle,endAngle
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| case 'poly':
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| drawPoly(coords);
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| break;
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| }
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| context.closePath();
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| context.stroke();
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| context.fill();
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| }
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| }
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|
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| function mouseAction(e) {
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| var $this = $(this),
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| activate = e.type == 'mouseover',
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| caption = $this.text(),
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| ol = $this.parent(),
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| context = ol.data('context'),
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| special = ol.data(specialAreaMark),
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| specialFile = ol.data(specialAreaMarkFile); //read JSON file addition
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|
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| if (specialFile) {
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| if (files[specialFile]) {
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| $.extend(special, files[specialFile]);
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| always(activate, caption, context, ol, special, $this);
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| } else {
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| $.get(mw.util.wikiScript(), {
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| title: specialFile,
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| action: 'raw'
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| })
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| .done(function(data) {
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| files[specialFile] = JSON.parse(data);
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| $.extend(special, files[specialFile]);
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| })
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| .always(function() {
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| always(activate, caption, context, ol, special, $this);
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| });
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| }
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| } else
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| always(activate, caption, context, ol, special, $this);
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| }
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|
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| function always(activate, caption, context, ol, special, $this) {
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| $this.toggleClass(liHighlightClass, activate); // mark/unmark the list item.
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|
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| context.clearRect(0, 0, context.canvas.width, context.canvas.height); // prepare for a new day.
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|
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| ol.find('li')
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| .each(function() {
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| var $li = $(this);
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| var licap = $li.text();
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| var param;
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| if (activate && licap === caption) { // highlight!!!
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| param = special && (special.hover && special.hover[licap]
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| || getblocks(special, licap)) || areaHighLighting;
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| } else {
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| param = special && special.nover && (special.nover[licap] || special.nover
| |
| .default);
| |
| }
| |
| if (param) {
| |
| $.extend(context, param);
| |
| drawMarker(context, $li.data('areas'));
| |
| }
| |
| });
| |
| }
| |
|
| |
| function getblocks(special, licap) {
| |
| if (special.hoverblocks) {
| |
| if (special.hoverblocks[licap])
| |
| return special.hoverblocks[licap].value;
| |
| for (var key in special.hoverblocks)
| |
| if (special.hoverblocks[key] && special.hoverblocks[key].list.indexOf(licap) >=0 )
| |
| return special.hoverblocks[key].value;
| |
| }
| |
| if (special.hover)
| |
| return special.hover.default;
| |
| }
| |
|
| |
| function handleOneMap() {
| |
| var img = $(this),
| |
| w = img.width(),
| |
| h = img.height(),
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| infoIcon = img.next(),
| |
| parent = img.parent(),
| |
| map = img.siblings('map:first'),
| |
| dims = {
| |
| position: 'absolute',
| |
| width: w + 'px',
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| height: h + 'px',
| |
| border: 0,
| |
| top: 0,
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| left: 0
| |
| },
| |
| specialHighlight = img.closest(hilightDivMarker)
| |
| .data(specialAreaMark),
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| specialLiClasses = img.closest(hilightDivMarker)
| |
| .data(specialLiClassesMark),
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| specialHover = img.closest(hilightDivMarker)
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| .data(specialAreaMarkFile);
| |
|
| |
| if (!('area', map)
| |
| .length)
| |
| return; //not an imagemap. inside "each" anonymous function, 'return' means "continue".
| |
|
| |
| var jcanvas = $('<canvas>', {
| |
| 'class': myClassName
| |
| })
| |
| .css(dims)
| |
| .attr({
| |
| width: w,
| |
| height: h
| |
| });
| |
| var bgimg = $('<img>', {
| |
| 'class': myClassName,
| |
| src: img.attr('src')
| |
| })
| |
| .css(dims); //completely inert image. this is what we see.
| |
| var context = $.extend(jcanvas[0].getContext("2d"), areaHighLighting);
| |
|
| |
| // this is where the magic is done: prepare a sandwich of the inert bgimg at the bottom,
| |
| // the canvas above it, and the original image on top,
| |
| // so canvas won't steal the mouse events.
| |
| // pack them all TIGHTLY in a newly minted "relative" div, so when page chnage
| |
| // (other scripts adding elements, window resize etc.), canvas and imagese remain aligned.
| |
| var div = $('<div>')
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| .css({
| |
| position: 'relative',
| |
| width: w + 'px',
| |
| height: h + 'px'
| |
| });
| |
| img.before(div); // put the div just above the image, and ...
| |
| div.append(bgimg) // place the background image in the div
| |
| .append(jcanvas) // and the canvas. both are "absolute", so they don't occupy space in the div
| |
| .append(img); // now yank the original image from the window and place it on the div.
| |
| img.fadeTo(1, 0); // make the image transparent - we see canvas and bgimg through it.
| |
| // the original, now transparent image is creating our mouse events
| |
|
| |
| infoIcon.css({
| |
| position: 'relative'
| |
| }); // set position to info icon
| |
| var ol = $('<ol>', {
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| 'class': myClassName
| |
| })
| |
| .css({
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| clear: 'both',
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| margin: 0,
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| listStyle: 'none',
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| maxWidth: w + 'px',
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| position: 'relative'
| |
| })
| |
| .data(specialAreaMark, specialHighlight)
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| .data(specialAreaMarkFile, specialHover)
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| .data('context', context);
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| var oldiv = $('<div>')
| |
| .html(ol)
| |
| .css({
| |
| clear: 'both',
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| margin: 0,
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| listStyle: 'none',
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| maxWidth: w + 'px',
| |
| position: 'relative'
| |
| })
| |
| .attr({
| |
| 'data-expandtext': expandLegend,
| |
| 'data-collapsetext': collapseLegend
| |
| });
| |
|
| |
| // ol below image parent, hr below ol. original caption pushed below hr.
| |
| parent.after($('<hr>', {
| |
| 'class': myClassName
| |
| })
| |
| .css('clear', 'both'))
| |
| .after(oldiv);
| |
| $('<hr>', {
| |
| 'class': myClassName
| |
| })
| |
| .css('clear', 'both')
| |
| .insertBefore($(oldiv));
| |
|
| |
| var lis = {}; //collapse areas with same caption to one list item
| |
| var someli; // select arbitrary one
| |
| $('area', map)
| |
| .each(function() {
| |
| var text = this.title;
| |
| var li = lis[text]; // title already met? use the same li
| |
| if (!li) { //no? create a new one.
| |
| var href = this.href;
| |
| lis[text] = li = $('<li>', {
| |
| 'class': myClassName
| |
| })
| |
| .append($('<a>', {
| |
| href: href,
| |
| text: text
| |
| }))
| |
| .on('mouseover mouseout', mouseAction)
| |
| .data('areas', [])
| |
| .addClass(specialLiClasses && (specialLiClasses[text] ||
| |
| specialLiClasses['default']))
| |
| .appendTo(ol);
| |
| if (specialLiClasses && specialLiClasses[text + ' super'])
| |
| li.find('a')
| |
| .addClass(specialLiClasses[text + ' super']);
| |
| }
| |
| li.data('areas')
| |
| .push(this); //add the area to the li
| |
| someli = li; // whichever - we just want one...
| |
| $(this)
| |
| .on('mouseover mouseout', function(e) {
| |
| li.trigger(e);
| |
| });
| |
| });
| |
| if (someli) someli.trigger('mouseout');
| |
| oldiv.addClass('mw-collapsed')
| |
| .makeCollapsible();
| |
| ol.attr('style', ol.attr('style')
| |
| .replace('none', 'disc'));
| |
| }
| |
|
| |
| function init() {
| |
| mw.util.addCSS('li.' + myClassName +
| |
| '{white-space:nowrap; font-size:88.36%;}\n' + //css for li element
| |
| 'li.' + liHighlightClass + '{background-color:yellow;}\n' + //css for highlighted li element.
| |
| '.rtl li.' + myClassName + '{float: right; margin-left: 1.5em;}\n' +
| |
| '.ltr li.' + myClassName + '{float: left; margin-right: 1.5em;}\n' +
| |
| hilightDivMarker + ' .mw-collapsible-toggle {float: none}');
| |
| $(hilightDivMarker + ' img')
| |
| .each(handleOneMap);
| |
| }
| |
|
| |
| //has at least one "imagehighlight" div, and canvas-capable browser:
| |
| if ($(hilightDivMarker)
| |
| .length && $('<canvas>')[0].getContext)
| |
| mw.loader.using(['jquery.makeCollapsible', 'mediawiki.util'])
| |
| .done(init);
| |
| });
| |