// ==UserScript==
// @name E-Hentai Highlighter
// @namespace http://userscripts.org/users/106844
// @description Highlighter for E-Hentai (e-hentai.org/exhentai.org). Supports regular expressions.
// @include http://g.e-hentai.org/*
// @include http://exhentai.org/*
// @grant GM_getValue
// @grant GM_setValue
// @version 0.5.5
// ==/UserScript==
// -------------------- DEFAULTS -------------------
var defaults = {
defaultColor : '#ec7e7e' ,
exColor : '#ed6464' ,
highlighterEnabled : false ,
filterEnabled : false ,
opacityEnabled : false ,
opacity : 0.1 ,
showTags : true ,
highlightTags : true
};
// -------------------- /DEFAULTS -------------------
var EHH = {
init: function() {
EHH.augmentJS();
// settings
EHH.settings = { };
for (var key in defaults)
EHH.settings[key] = Utils.load(key,defaults[key]);
EHH.dontWalk = false;
EHH.onPanda = document.URL.indexOf('e-hentai') == -1;
EHH.defaultColor = EHH.settings[EHH.onPanda ? 'exColor' : 'defaultColor'];
EHH.thumbnails = document.querySelector('.itg .id1') !== null;
EHH.gallery = document.querySelector('#taglist') !== null;
// User data
EHH.keywords = Utils.load('keywords',[ ]);
EHH.filters = Utils.load('filters',[ ]);
if (Utils.onFirefox()) Utils.migrateSettings();
// Colors
var colors =
EHH.onPanda ? { toggle: 'lightblue', toggleHover: 'lightcyan', disable: 'lightgreen',
disableHover: 'springgreen', enable: 'salmon', enableHover: 'lightsalmon',
row1: '#363940', row2: '#4F535B' }
: { toggle: 'slateblue', toggleHover: 'skyblue', disable: 'forestgreen',
disableHover: 'mediumseagreen', enable: 'indianred', enableHover: 'darkred',
row1: '#F2F0E4', row2: '#EDEBDF' };
var format = function(text) { return text.replace(/%(\w+)/g,function(x) { return colors[x.slice(1)]; }); };
// Permanent style
var style = document.createElement('style');
style.innerHTML = format(
// popup (general)
'#e-HentaiPopup {' +
'position: fixed; top: 0; right: 0; padding: 3px; border-radius: 0 !important;' +
'border: 1px black solid; z-index: 10; margin: 0 !important; min-width: 0 !important; width: auto !important;' +
'}' +
'#e-HentaiPopup:not(:hover) *:not(:first-child) { display: none; }' +
'#e-HentaiPopup * {' +
'font-family: Verdana, Tahoma, Georgia, Dejavu, "Times New Roman", Serif;' +
'font-size: 10px;' +
'} #e-Header { text-align: center; position: relative; }' +
'[mode="default"] [mode="settings"], [mode="settings"] [mode="default"] { display: none; }' +
'#e-ToggleMode {' +
'cursor: pointer; color: %toggle !important; font-weight: bold;' +
'position: absolute; right: 5px; border-bottom: 1px dotted;' +
'}' +
'#e-ToggleMode:hover { color: %toggleHover !important; }' +
'#e-HentaiPopup div[mode] { width: 350px; text-align: left; }' +
// popup (default view)
'#e-HentaiPopup td:nth-child(2) { text-align: right; }' +
'#e-HentaiPopup td:nth-child(2) a, #e-HentaiPopup tr:last-child a {' +
'cursor: pointer; font-weight: bold; border-bottom: 1px dotted;' +
'}' +
'#e-HentaiPopup .e-Disable { color: %disable; }' +
'#e-HentaiPopup .e-Disable:hover { color: %disableHover; }' +
'#e-HentaiPopup .e-Enable { color: %enable; }' +
'#e-HentaiPopup .e-Enable:hover { color: %enableHover; }' +
'#e-HentaiPopup tr:last-child a:hover { color: black; }' +
'#e-HentaiPopup td > span { margin-right: 5px; float: right; }' +
'#e-HentaiPopup table { width: 100%; }' +
'#e-HentaiPopup textarea { width: 100%; height: 200px; box-sizing: border-box; -moz-box-sizing: border-box; }' +
// popup (settings view)
'#e-HentaiPopup label { display: block; padding: 2px; }' +
'#e-HentaiPopup input[type="checkbox"] { margin: 0 5px 0 0; float: left; }' +
'[name="slider"]:not([visible="true"]), [name="slider"]:not([visible="true"]) + span { display: none; }' +
'[name="slider"] { margin-left: 20px; width: 250px; }' +
'[name="slider"] + span { position: relative; bottom: 7px; }' +
'#e-HentaiPopup [mode="settings"] { padding: 10px; box-sizing: border-box; -moz-box-sizing: border-box; }' +
'#e-Buttons { text-align: center; padding-top: 20px; }' +
'.e-Button {' +
'min-width: 100px; height: 25px; line-height: 25px; text-align: center; color: white;' +
'background: black; display: inline-block; cursor: pointer; margin-right: 10px;' +
'}' +
'.e-Button:hover { text-decoration: underline; }' +
'.e-Button + input { display: none; }' +
'#e-PickerLabel { margin-top: 10px; }' +
'#e-ColorPicker + div { width: 30px; height: 18px; display: inline-block; margin-left: 10px; vertical-align: top; }' +
// highlight/filter style
'.e-Highlighted b { font-weight: inherit; }' +
'.e-Highlighted, .e-Highlighted a, [id^="ta_"][style*="background"] { color: black !important; }' +
'.e-Highlighted b { font-weight: bold !important; font-size: 115%; text-decoration: underline; }' +
// tag divs
'.e-Tags { position: absolute; top: 0px; left: 0px; text-align: left; color: black; ' +
'margin-left: 1px; text-shadow: -1px -1px 0 #fff, 1px -1px 0 #fff, -1px 1px 0 #fff, 1px 1px 0 #fff;' +
'font-weight: bold; font-family: "Segoe UI"; font-size: 12px; line-height: 11px;' +
'}' +
'.e-Tags > div { padding: 3px; max-width: 70px; overflow: hidden; transition: max-width .5s linear;' +
'white-space: nowrap; }' +
'.id3:hover .e-Tags > div { max-width: 200px !important; }'
);
document.head.appendChild(style);
// Mutable style
EHH.opaqueFilterCSS = document.createElement('style');
EHH.opaqueFilterCSS.id = 'e-OpaqueFilter';
EHH.opaqueFilterCSSMask = format('{0}#toppane ~ .c, .e-Filtered { display: none !important; }\n' +
'{0}tr.color1 { background: %row1 }\n' +
'{0}tr.color0 { background: %row2 }\n' +
'{1}#toppane ~ .c, .e-Filtered { opacity: {opacity} !important;}\n' +
'{1}.e-Filtered:hover { opacity: 1 !important; -webkit-transition: opacity .1s linear;' +
'-moz-transition: opacity .1s linear; -o-transition: opacity .1s linear; }');
document.head.appendChild(EHH.opaqueFilterCSS);
// Popup
EHH.generatePopup();
// Events
document.addEventListener('DOMNodeInserted',function(e) {
if (e.target.nodeName == 'TBODY')
EHH.walk(e.target);
},false);
if (EHH.gallery)
document.addEventListener('DOMNodeInserted',EHH.updateTagList,false);
if (!EHH.gallery && !EHH.thumbnails)
EHH.interceptMouseHover();
// Data synchronization
EHH.link('keywords' , 'keywords' , EHH.updatePopup , EHH.clearRegexes , EHH.walk);
EHH.link('filters' , 'filters' , EHH.updatePopup , EHH.clearRegexes , EHH.walk);
EHH.link('defaultColor' , null , EHH.updatePopup , EHH.walk);
EHH.settings.link('defaultColor' , 'defaultColor');
EHH.settings.link('exColor' , 'exColor' );
EHH.settings.link('filterEnabled' , 'filterEnabled' , EHH.updatePopup , EHH.toggleOpacity , EHH.walk);
EHH.settings.link('highlighterEnabled' , 'highlighterEnabled' , EHH.updatePopup , EHH.walk);
EHH.settings.link('opacityEnabled' , 'opacityEnabled' , EHH.updatePopup , EHH.toggleOpacity , EHH.resize);
EHH.settings.link('opacity' , 'opacity' , EHH.updatePopup , EHH.toggleOpacity , EHH.resize);
EHH.settings.link('showTags' , 'showTags' , EHH.toggleTagDivs);
EHH.settings.link('highlightTags' , 'highlightTags' , EHH.highlightTags);
// Start
EHH.toggleOpacity();
EHH.walk();
},
augmentJS: function() {
/*Object.getOwnPropertyNames(Array.prototype).forEach(function(x) {
NodeList.prototype[x] = Array.prototype[x];
});*/
var linkedObjects = { };
Object.defineProperty(Object.prototype,'link', {
enumerable : false,
configurable : false,
writable : false,
value : function(localProperty,storedProperty,onChangeCallbacks) {
var currentValue = this[localProperty], args = arguments;
var get = function() { return currentValue; };
var set = function(value) {
currentValue = value;
if (storedProperty) Utils.save(storedProperty,currentValue);
for (var i=2;i<args.length;++i) {
if (args[i])
args[i](currentValue);
}
};
delete this[localProperty];
var descriptor = { get: get, set: set, enumerable: true, configurable: true };
Object.defineProperty(this,localProperty,descriptor);
linkedObjects[storedProperty] = { object: this, key: localProperty };
}
});
if (!Utils.onFirefox()) {
window.addEventListener('storage',function(e) {
if (!linkedObjects.hasOwnProperty(e.key)) return;
var target = linkedObjects[e.key];
target.object[target.key] = JSON.parse(e.newValue);
},false);
}
},
generatePopup: function() {
EHH.popup = document.createElement('div');
EHH.popup.id = 'e-HentaiPopup';
EHH.popup.className = 'ido';
EHH.popup.setAttribute('mode','default');
EHH.popup.innerHTML =
'<div id="e-Header">' +
'<b>E-H Highlighter</b>' +
'<a id="e-ToggleMode" target="settings">Show settings</a>' +
'</div><hr/>' +
'<div mode="default">' +
'<table align="right">' +
'<tr><td style="text-align:left">Keywords:</td><td><a id="e-HighlighterSwitch">Highlighter: enabled</a></tr>' +
'<tr><td colspan="2"><textarea></textarea></td></tr>' +
'<tr><td style="text-align:left">Filters:</td><td><a id="e-FilterSwitch">Filter: enabled</a></td></tr>' +
'<tr><td colspan="2"><textarea></textarea></td></tr>' +
'<tr><td colspan="2"><a id="e-PopupSave">Save changes</a><span><b>Filtered items:</b> <span id="e-FilteredItems"></span></span></td></tr>' +
'</table>' +
'</div>' +
'<div mode="settings">' +
'<label><input type="checkbox" id="opacitySwitch"> Enable opacity mode for filtered items</label>' +
'<input type="range" name="slider" min="0" max="100"> <span></span>' +
'<label><input type="checkbox" id="tagDivSwitch">Display any tags matching one or more highlight keywords in front of the gallery thumbnails</label>' +
'<label><input type="checkbox" id="highlightTagSwitch">Apply highlighting and filters to each gallery\'s tag list</label>' +
'<label id="e-PickerLabel"><input type="checkbox" style="visibility: hidden">Default highlight color: <input type="color" id="e-ColorPicker"> <div></div></label>' +
'<div id="e-Buttons">' +
'<div class="e-Button" id="e-Export">Export data</div>' +
'<div class="e-Button" id="e-Import">Import data</div><input type="file" accept="application/json">' +
'</div>' +
'</div>';
document.body.appendChild(EHH.popup);
// Popup elements
EHH.highlighterSwitch = document.getElementById('e-HighlighterSwitch');
EHH.filterSwitch = document.getElementById('e-FilterSwitch');
var textareas = Utils.query('#e-HentaiPopup textarea');
EHH.highlighterArea = textareas[0];
EHH.filterArea = textareas[1];
// Events (default view)
Utils.onClick(document.getElementById('e-ToggleMode'),function() {
EHH.popup.setAttribute('mode',this.getAttribute('target'));
var showSettings = this.getAttribute('target') == 'settings';
this.innerHTML = (showSettings ? 'Show keywords' : 'Show settings');
this.setAttribute('target',showSettings ? 'default' : 'settings');
});
[EHH.highlighterSwitch,EHH.filterSwitch].forEach(function(x) {
Utils.onClick(x,function() {
var target = /Highlighter/.test(this.textContent) ? 'highlighterEnabled' : 'filterEnabled';
var status = /enabled/.test(this.textContent);
EHH.settings[target] = !status;
});
});
Utils.onClick(document.getElementById('e-PopupSave'),function() {
var validate = function(regexes) { for (var i=0;i<regexes.length;++i) new RegExp(regexes[i]); };
var keywords = EHH.highlighterArea.value.split(/[;\n]/).filter(function(x) { return x.length > 0; });
var filters = EHH.filterArea.value.split(/[;\n]/).filter(function(x) { return x.length > 0; });
try {
validate(keywords);
validate(filters);
EHH.dontWalk = true;
EHH.keywords = keywords;
EHH.filters = filters;
EHH.dontWalk = false;
EHH.walk();
} catch (e) {
alert('Couldn\'t parse keyword. ' + e.message + '\nSettings have NOT been saved.');
}
});
// Events (settings view)
Utils.linkCheckbox(document.getElementById('opacitySwitch'),EHH.settings,'opacityEnabled');
Utils.linkCheckbox(document.getElementById('tagDivSwitch'),EHH.settings,'showTags');
Utils.linkCheckbox(document.getElementById('highlightTagSwitch'),EHH.settings,'highlightTags');
// Opacity slider
EHH.slider = EHH.popup.querySelector('[name="slider"]');
if (EHH.slider.type != 'range') EHH.slider = null; // not supported
else {
EHH.slider.value = EHH.settings.opacity * 100;
EHH.slider.nextElementSibling.innerHTML = (Math.floor(EHH.settings.opacity * 10000) / 100) + '%';
EHH.slider.addEventListener('change',function(e) {
e.target.nextElementSibling.innerHTML = e.target.value + '%';
EHH.settings.opacity = parseInt(e.target.value,10) / 100;
},false);
}
// Color picker
var picker = document.getElementById('e-ColorPicker'),
preview = picker.nextElementSibling,
supported = picker.type == 'color';
picker.value = preview.style.backgroundColor = EHH.defaultColor;
if (supported) picker.style.cssText = 'padding: 0px; border: 0px; background: none; position: relative; top: 3px';
else picker.style.cssText = 'width: 60px; color: black';
preview.style.cssText = (supported ? 'display: none;' : 'background-color: ' + EHH.defaultColor);
var lastColor = preview.style.backgroundColor;
picker.addEventListener(supported ? 'change' : 'input',function() {
preview.style.backgroundColor = picker.value;
if (preview.style.backgroundColor == lastColor) return;
lastColor = preview.style.backgroundColor;
EHH.settings[EHH.onPanda ? 'exColor' : 'defaultColor'] = picker.value;
EHH.defaultColor = picker.value;
},false);
// Import-export functions
var importButton = document.getElementById('e-Import'), importInput = importButton.nextElementSibling;
Utils.onClick(importButton,function() { importInput.click(); });
importInput.addEventListener('change',function(e) {
var reader = new FileReader();
reader.onerror = function(e) { alert('Couldn\'t read the selected file.'); };
reader.onload = function(e) {
try {
var data = JSON.parse(this.result);
if (!data.keywords || !data.filters || !data.settings) throw null;
var confirmation = confirm('This will overwrite your data. Are you sure you want to proceed?');
if (confirmation) {
EHH.dontWalk = true;
EHH.keywords = data.keywords;
EHH.filters = data.filters;
for (var key in EHH.settings) EHH.settings[key] = data.settings[key];
setTimeout(function() { window.location.reload(); },50);
}
}
catch (_) { alert('Couldn\'t recognize the selected file.'); }
};
reader.readAsText(this.files[0]);
},false);
Utils.onClick(document.getElementById('e-Export'),function() {
var result = { keywords: EHH.keywords, filters: EHH.filters, settings: EHH.settings };
var blob = new Blob([JSON.stringify(result,null,2)],{ type: 'application/json' });
var a = document.createElement('a');
a.href = URL.createObjectURL(blob);
a.download = 'EHH.settings.' + (new Date().valueOf()) + '.json';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
});
EHH.updatePopup();
},
updatePopup: function() {
var updateSwitch = function(target,enable) {
target.textContent = target.textContent.replace(/[^\s]+$/,enable ? 'enabled' : 'disabled');
target.className = enable ? 'e-Disable' : 'e-Enable';
var filtered = document.getElementsByClassName('e-Filtered').length;
document.getElementById('e-FilteredItems').textContent = filtered;
};
EHH.highlighterArea.textContent = EHH.keywords.join('\n');
EHH.filterArea.textContent = EHH.filters.join('\n');
updateSwitch(EHH.highlighterSwitch,EHH.settings.highlighterEnabled);
updateSwitch(EHH.filterSwitch,EHH.settings.filterEnabled);
document.getElementById('opacitySwitch').checked = EHH.settings.opacityEnabled;
},
toggleOpacity: function() {
// changes the mutable style to enable or disable opacity
EHH.opaqueFilterCSS.innerHTML = EHH.opaqueFilterCSSMask
.replace(/\{0\}/g,EHH.settings.opacityEnabled ? '//' : '')
.replace(/\{1\}/g,EHH.settings.opacityEnabled ? '' : '//')
.replace(/\{opacity\}/,EHH.settings.opacity);
if (EHH.slider) EHH.slider.setAttribute('visible',EHH.settings.opacityEnabled);
},
toggleTagDivs: function() {
Utils.query('.e-Tags').forEach(function(x) {
x.style.display = EHH.settings.showTags ? null : 'none';
});
},
clearRegexes: function() {
EHH.parse.regexes = null;
},
prepareRegexes: function() {
/* returns an object containing two properties:
* highlight : an array of keywords; each element is an object with a "type" property ("tag" or "title"),
* a "regex" property and a "color" property (null if no color is specified for that keyword)
* keywords will be checked sequentially; the first matching keyword with a color specified
* will decide the item's color; if no color is found but the item still has to be
* highlighted, EHH.defaultColor will be used instead
* filters : an object with two properties (tag and title), each one a regular expression to
* be applied to the relevant target
*/
var splitFilter = function(x,target) {
if (x.length > 0 && x[0] == ':') target.tag.push(x.slice(1));
else if (x.length > 0) target.title.push(x);
};
var highlight = EHH.keywords.map(function(x) {
var temp = x[0] == ':' ? { keyword : x.slice(1), type : 'tag' } :
{ keyword : x, type : 'title' };
var tokens = temp.keyword.match(/^(.+?)(\/[^\/]+)?$/);
return { regex: new RegExp(tokens[1],'gi'), type: temp.type, color: tokens[2] ? tokens[2].slice(1) : null };
});
var filters = { title: [ ], tag: [ ] };
EHH.filters.forEach(function(x) {
if (x[0] == ':') filters.tag.push(x.slice(1));
else filters.title.push(x);
});
if (filters.title.length === 0) filters.title.push('EHH: no active title filter');
if (filters.tag.length === 0) filters.tag.push('EHH: no active tag filter');
filters.title = new RegExp('(' + filters.title.join('|') + ')','i');
filters.tag = new RegExp('(' + filters.tag.join('|') + ')','i');
return { highlight: highlight, filters: filters };
},
parse: function(title,tags) {
/* title : a string, the title of the gallery item to be parsed
* tags : an array of objects, each one a tag contained in a tag flag
* uses the object built by EHH.prepareRegexes to decide the course of action for each gallery
* returns an object with a "result" property indicating what has to be done
* possible values are "highlighted", "filtered" or null for no action
* filters take precedence over highlight keywords
* if the gallery item is to be highlighted, the result will also contain three additional properties:
* - titleKeywords : a list of title substrings that match one or more keywords (can be empty)
* - tagKeywords : a list of matching tags (to be passed to EHH.addTagDiv if EHH.settings.showTags is set, can be empty)
* - color : the color the gallery needs to be highlighted in (EHH.defaultColor if the user did not specify any color)
*/
if (!EHH.parse.regexes)
EHH.parse.regexes = EHH.prepareRegexes();
var regexes = EHH.parse.regexes;
if (EHH.settings.filterEnabled) {
var filtered = regexes.filters.title.test(title) || tags.some(function(x) { return regexes.filters.tag.test(x.tag); });
if (filtered) return { result: 'filtered' };
}
if (EHH.settings.highlighterEnabled) {
var titleKeywords = { }, tagKeywords = { }, color = null;
regexes.highlight.forEach(function(data) {
if (data.type == 'tag') {
tags.forEach(function(tag) {
if (tagKeywords.hasOwnProperty(tag.tag) || !tag.tag.match(data.regex)) return;
tagKeywords[tag.tag] = tag.color;
if (!color) color = data.color;
});
}
else {
var tokens = title.match(data.regex);
if (!tokens) return;
tokens = tokens.length == 1 ? tokens : tokens.slice(1);
for (var i=0;i<tokens.length;++i) titleKeywords[tokens[i]] = true;
if (!color) color = data.color;
}
});
titleKeywords = Object.keys(titleKeywords);
if (titleKeywords.length === 0 && Object.keys(tagKeywords).length === 0) return { result: null };
return { result: 'highlighted', titleKeywords: titleKeywords, tagKeywords: tagKeywords, color: color || EHH.defaultColor };
}
return { result: null };
},
computeTagColor: function(tag) {
// don't use style.backgroundPositionY
var y = parseInt(tag.style.cssText.split(/\s/).slice(-1)[0],10);
y = -(y+1) / 17;
return ['salmon','darkorange','gold','mediumaquamarine','skyblue','mediumorchid'][y];
},
// extracts both the title and a list of tags for a given target
// tags are parsed into objects with "tag" and "color" properties representing
// respectively the tag itself and the color of their associated tag flag
extractData: function(target) {
if (!target) return null;
var title = target.querySelector('.it5 > a, .id2 > a, [class^="t2"] > a') || target.querySelector('.itd a'),
tags = Utils.query(target,'.tft, .tfl');
if (!title && target.className.indexOf('t2') === 0) title = target.firstChild;
if (!title) return null;
if (tags.length > 0)
tags = tags
.map(function(x) {
var color = EHH.computeTagColor(x);
return x.title.split(/, /).map(function(y) { return { tag: y, color: color }; });
})
.reduce(function(x,y) { return x.concat(y); });
return { title: title, tags: tags };
},
addTagDiv: function(target,tags) {
if (!tags || Object.keys(tags).length === 0) return;
var div = document.createElement('div');
div.className = 'e-Tags';
var html = '';
for (t in tags) {
var tag = t.replace(/^.+:/,''), color = tags[t];
html += '<div style="background-color: ' + color + '">' + tag + '</div>';
}
div.innerHTML = html;
if (!EHH.settings.showTags) div.style.display = 'none';
var temp = target.getElementsByClassName('id3')[0];
if (temp) temp.firstElementChild.appendChild(div);
else target.appendChild(div);
},
walk: function(root) {
/* walks the DOM to highlight and filter gallery items (or the taglist) */
if (EHH.gallery) {
EHH.highlightTags();
return;
}
if (EHH.dontWalk) return;
var removeTagDiv = function(target) {
Utils.query(target,'.e-Tags').forEach(function(x) { x.parentNode.removeChild(x); });
};
var editTitle = function(target,keywords) {
var temp = target.innerHTML;
keywords.forEach(function(keyword) {
var length = keyword.length, n = target.innerHTML.indexOf(keyword);
while (n != -1) {
temp = temp.slice(0,n) + new Array(length+1).join('\0') + temp.slice(n+length);
n = target.innerHTML.indexOf(keyword,n+1);
}
});
return temp.replace(/\0+/g,function(match,start) {
return '<b>' + target.innerHTML.slice(start,start+match.length) + '</b>';
});
};
// ----------
var flip = 1,
targets = Utils.query('[class^="gtr"], [class^="id1"], [class^="t2"]');
targets.forEach(function(target) {
var data = EHH.extractData(target);
if (data === null) return;
// reset element
target.className = target.className.replace(/\s?e-\w+/g,'');
target.style.cssText = target.style.cssText.replace(/background-color:.+?;/,'');
data.title.innerHTML = data.title.innerHTML = data.title.innerHTML.replace(/<\/?b>/g,'');
removeTagDiv(target);
var parsed = EHH.parse(data.title.textContent,data.tags);
if (parsed.result == 'filtered') target.className += ' e-Filtered';
if (parsed.result == 'highlighted') {
target.className += ' e-Highlighted';
target.style.cssText += 'background-color: ' + parsed.color + ' !important;';
data.title.innerHTML = editTitle(data.title,parsed.titleKeywords);
if (EHH.thumbnails) EHH.addTagDiv(target,parsed.tagKeywords);
}
if (!/^gtr/.test(target.className)) return;
if (parsed.result == 'filtered' && !EHH.opaque) return;
flip = (flip+1)%2;
if (target.className.indexOf('color') == -1) target.className += ' color' + flip;
else target.className = target.className.replace(/color\d/,'color' + flip);
});
var filtered = document.getElementsByClassName('e-Filtered').length;
document.getElementById('e-FilteredItems').textContent = filtered;
EHH.resize();
},
resize: function() {
/* makes sure that thumbnails are displayed correctly (only necessary when filtering is enabled) */
if (!EHH.thumbnails) return;
var targets = document.getElementsByClassName('id1'), n = targets.length;
var queue = [], map = function(x) { return [x,parseInt(x.style.height)]; };
for (var i=0;i<n;++i) {
if (!EHH.settings.filterEnabled || EHH.opaque) {
targets[i].style.marginBottom = null;
continue;
}
if (targets[i].className.indexOf('e-Filtered') != -1) continue;
queue.push(targets[i]);
if (queue.length < 5) continue;
queue = queue.map(map);
var max = queue[0][1];
for (var j=1;j<5;++j) max = Math.max(max,queue[j][1]);
for (j=0;j<5;++j) {
if (queue[j][1] == max) queue[j][0].style.marginBottom = null;
else queue[j][0].style.marginBottom = (max-queue[j][1]+2) + 'px';
}
queue = [];
}
},
highlightTags: function() {
Utils.query('[id^="ta_"]').forEach(function(x) {
if (!EHH.settings.highlightTags) x.style.cssText = '';
else {
var fullName = x.id.slice(3).replace(/_/g,' ');
var data = EHH.parse(fullName,[fullName]);
x.style.cssText = data.result == 'filtered' ? 'text-decoration: line-through' :
data.result == 'highlighted' ? 'background-color: ' + data.color + ' !important' :
'';
}
});
},
updateTagList: function(e) {
if (e.target.nodeName != 'TABLE' || e.target.parentNode.id != 'taglist') return;
if (EHH.settings.highlightTags) EHH.highlightTags();
},
interceptMouseHover: function(e) {
var observer = new MutationObserver(function(e) {
var thumbnail = e[0].target;
if (thumbnail.style.visibility == 'hidden')
Utils.query(thumbnail,'.e-Tags').forEach(function(x) { x.parentNode.removeChild(x); });
else if (EHH.settings.showTags) {
var row = document.evaluate('ancestor::tr[1]',thumbnail,null,9,null).singleNodeValue,
data = EHH.extractData(row);
if (data === null) return;
parsed = EHH.parse(data.title.textContent,data.tags);
if (parsed.result == 'highlighted') EHH.addTagDiv(thumbnail,parsed.tagKeywords);
}
});
Utils.query('.it2[id^="i"]').forEach(function(x) {
observer.observe(x,{ attributes: true });
});
}
};
var Utils = {
onFirefox: function() {
return (window.chrome === undefined);
},
migrateSettings: function() { // this is only run on Firefox
if (localStorage.getItem('migrationDone') !== null) return;
for (var key in EHH.settings) {
if (localStorage.getItem(key) === null) continue;
EHH.settings[key] = JSON.parse(localStorage.getItem(key));
Utils.save(key,EHH.settings[key]);
localStorage.removeItem(key);
}
['keywords','filters'].forEach(function(key) {
if (localStorage.getItem(key) === null) return;
EHH[key] = JSON.parse(localStorage.getItem(key));
Utils.save(key,EHH[key]);
localStorage.removeItem(key);
});
localStorage.setItem('migrationDone','true');
},
save: function(key,value) {
if (Utils.onFirefox()) GM_setValue(key,JSON.stringify(value));
else localStorage.setItem(key,JSON.stringify(value));
},
load: function(key,def) {
var result = Utils.onFirefox() ? GM_getValue(key,null) : localStorage.getItem(key);
return result ? JSON.parse(result) : def;
},
onClick: function(element,f) {
element.addEventListener('click',function(e) {
if (e.which != 1) return;
if (f) f.call(this);
},false);
},
linkCheckbox: function(checkbox,object,property) {
if (object && object.hasOwnProperty(property))
checkbox.checked = object[property];
Utils.onClick(checkbox,function() { object[property] = checkbox.checked; });
},
query: function(root,selector) {
if (!selector)
return Array.prototype.slice.call(document.querySelectorAll(root),0);
else
return Array.prototype.slice.call(root.querySelectorAll(selector),0);
}
};
EHH.init();
