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/* based on chromium plugin code, adapted by Nibble<.gs@gmail.com> */ |
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var hint_num_str = ''; |
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var hint_elems = []; |
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var hint_open_in_new_tab = false; |
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var hint_enabled = false; |
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function hintMode(newtab){ |
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hint_enabled = true; |
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if (newtab) { |
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hint_open_in_new_tab = true; |
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} else { |
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hint_open_in_new_tab = false; |
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} |
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setHints(); |
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document.removeEventListener('keydown', initKeyBind, false); |
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document.addEventListener('keydown', hintHandler, false); |
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hint_num_str = ''; |
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} |
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function hintHandler(e){ |
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e.preventDefault(); //Stop Default Event
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var pressedKey = get_key(e); |
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if (pressedKey == 'Enter') { |
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if (hint_num_str == '') |
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hint_num_str = '1'; |
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judgeHintNum(Number(hint_num_str)); |
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} else if (/[0-9]/.test(pressedKey) == false) { |
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removeHints(); |
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} else { |
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hint_num_str += pressedKey; |
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var hint_num = Number(hint_num_str); |
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if (hint_num * 10 > hint_elems.length + 1) { |
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judgeHintNum(hint_num); |
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} else { |
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var hint_elem = hint_elems[hint_num - 1]; |
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if (hint_elem != undefined && hint_elem.tagName.toLowerCase() == 'a') { |
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setHighlight(hint_elem, true); |
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} |
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} |
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} |
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} |
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function setHighlight(elem, is_active) { |
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if (is_active) { |
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var active_elem = document.body.querySelector('a[highlight=hint_active]'); |
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if (active_elem != undefined) |
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active_elem.setAttribute('highlight', 'hint_elem'); |
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elem.setAttribute('highlight', 'hint_active'); |
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} else { |
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elem.setAttribute('highlight', 'hint_elem'); |
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} |
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} |
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function setHintRules() { |
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if (document.styleSheets.length < 1) { |
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var style = document.createElement("style"); |
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style.appendChild(document.createTextNode("")); |
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document.head.appendChild(style); |
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} |
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var ss = document.styleSheets[0]; |
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ss.insertRule('a[highlight=hint_elem] {background-color: yellow}', 0); |
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ss.insertRule('a[highlight=hint_active] {background-color: lime}', 0); |
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} |
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function deleteHintRules() { |
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var ss = document.styleSheets[0]; |
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ss.deleteRule(0); |
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ss.deleteRule(0); |
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} |
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function judgeHintNum(hint_num) { |
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var hint_elem = hint_elems[hint_num - 1]; |
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if (hint_elem != undefined) { |
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execSelect(hint_elem); |
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} else { |
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removeHints(); |
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} |
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} |
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function execSelect(elem) { |
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var tag_name = elem.tagName.toLowerCase(); |
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var type = elem.type ? elem.type.toLowerCase() : ""; |
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if (tag_name == 'a' && elem.href != '') { |
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setHighlight(elem, true); |
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// TODO: ajax, <select>
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if (hint_open_in_new_tab) |
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window.open(elem.href); |
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else location.href=elem.href; |
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} else if (tag_name == 'input' && (type == "submit" || type == "button" || type == "reset")) { |
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elem.click(); |
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} else if (tag_name == 'input' && (type == "radio" || type == "checkbox")) { |
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// TODO: toggle checkbox
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elem.checked = !elem.checked; |
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} else if (tag_name == 'input' || tag_name == 'textarea') { |
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elem.focus(); |
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elem.setSelectionRange(elem.value.length, elem.value.length); |
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} |
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removeHints(); |
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} |
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function setHints() { |
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setHintRules(); |
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var win_top = window.scrollY; |
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var win_bottom = win_top + window.innerHeight; |
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var win_left = window.scrollX; |
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var win_right = win_left + window.innerWidth; |
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// TODO: <area>
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var elems = document.body.querySelectorAll('a, input:not([type=hidden]), textarea, select, button'); |
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var div = document.createElement('div'); |
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div.setAttribute('highlight', 'hints'); |
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document.body.appendChild(div); |
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for (var i = 0; i < elems.length; i++) { |
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var elem = elems[i]; |
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if (!isHintDisplay(elem)) |
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continue; |
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var pos = elem.getBoundingClientRect(); |
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var elem_top = win_top + pos.top; |
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var elem_bottom = win_top + pos.bottom; |
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var elem_left = win_left + pos.left; |
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var elem_right = win_left + pos.left; |
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if ( elem_bottom >= win_top && elem_top <= win_bottom) { |
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hint_elems.push(elem); |
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setHighlight(elem, false); |
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var span = document.createElement('span'); |
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span.style.cssText = [ |
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'left: ', elem_left, 'px;', |
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'top: ', elem_top, 'px;', |
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'position: absolute;', |
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'font-size: 13px;', |
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'background-color: ' + (hint_open_in_new_tab ? '#ff6600' : 'red') + ';', |
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'color: white;', |
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'font-weight: bold;', |
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'padding: 0px 1px;', |
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'z-index: 100000;' |
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].join(''); |
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span.innerHTML = hint_elems.length; |
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div.appendChild(span); |
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if (elem.tagName.toLowerCase() == 'a') { |
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if (hint_elems.length == 1) { |
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setHighlight(elem, true); |
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} else { |
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setHighlight(elem, false); |
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} |
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} |
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} |
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} |
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} |
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function isHintDisplay(elem) { |
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var pos = elem.getBoundingClientRect(); |
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return (pos.height != 0 && pos.width != 0); |
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} |
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function removeHints() { |
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if (!hint_enabled) |
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return; |
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hint_enabled = false; |
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deleteHintRules(); |
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for (var i = 0; i < hint_elems.length; i++) { |
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hint_elems[i].removeAttribute('highlight'); |
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} |
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hint_elems = []; |
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hint_num_str = ''; |
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var div = document.body.querySelector('div[highlight=hints]'); |
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if (div != undefined) { |
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document.body.removeChild(div); |
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} |
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document.removeEventListener('keydown', hintHandler, false); |
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document.addEventListener('keydown', initKeyBind, false); |
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} |
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function addKeyBind( key, func, eve ){ |
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var pressedKey = get_key(eve); |
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if( pressedKey == key ){ |
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eve.preventDefault(); //Stop Default Event
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eval(func); |
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} |
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} |
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document.addEventListener( 'keydown', initKeyBind, false ); |
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function initKeyBind(e){ |
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var t = e.target; |
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if( t.nodeType == 1){ |
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addKeyBind( 'C-w', 'hintMode()', e ); |
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addKeyBind( 'C-F', 'hintMode(true)', e ); |
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addKeyBind( 'C-c', 'removeHints()', e ); |
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} |
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} |
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var keyId = { |
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"U+0008" : "BackSpace", |
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"U+0009" : "Tab", |
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"U+0018" : "Cancel", |
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"U+001B" : "Esc", |
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"U+0020" : "Space", |
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"U+0021" : "!", |
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"U+0022" : "\"", |
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"U+0023" : "#", |
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"U+0024" : "$", |
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"U+0026" : "&", |
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"U+0027" : "'", |
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"U+0028" : "(", |
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"U+0029" : ")", |
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"U+002A" : "*", |
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"U+002B" : "+", |
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"U+002C" : ",", |
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"U+002D" : "-", |
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"U+002E" : ".", |
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"U+002F" : "/", |
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"U+0030" : "0", |
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"U+0031" : "1", |
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"U+0032" : "2", |
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"U+0033" : "3", |
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"U+0034" : "4", |
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"U+0035" : "5", |
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"U+0036" : "6", |
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"U+0037" : "7", |
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"U+0038" : "8", |
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"U+0039" : "9", |
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"U+003A" : ":", |
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"U+003B" : ";", |
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"U+003C" : "<", |
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"U+003D" : "=", |
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"U+003E" : ">", |
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"U+003F" : "?", |
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"U+0040" : "@", |
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"U+0041" : "a", |
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"U+0042" : "b", |
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"U+0043" : "c", |
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"U+0044" : "d", |
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"U+0045" : "e", |
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"U+0046" : "f", |
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"U+0047" : "g", |
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"U+0048" : "h", |
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"U+0049" : "i", |
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"U+004A" : "j", |
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"U+004B" : "k", |
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"U+004C" : "l", |
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"U+004D" : "m", |
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"U+004E" : "n", |
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"U+004F" : "o", |
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"U+0050" : "p", |
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"U+0051" : "q", |
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"U+0052" : "r", |
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"U+0053" : "s", |
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"U+0054" : "t", |
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"U+0055" : "u", |
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"U+0056" : "v", |
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"U+0057" : "w", |
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"U+0058" : "x", |
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"U+0059" : "y", |
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"U+005A" : "z", |
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//"U+005B" : "[",
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//"U+005C" : "\\",
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//"U+005D" : "]",
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"U+00DB" : "[", |
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"U+00DC" : "\\", |
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"U+00DD" : "]", |
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"U+005E" : "^", |
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"U+005F" : "_", |
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"U+0060" : "`", |
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"U+007B" : "{", |
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"U+007C" : "|", |
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"U+007D" : "}", |
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"U+007F" : "Delete", |
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"U+00A1" : "¡", |
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"U+0300" : "CombGrave", |
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"U+0300" : "CombAcute", |
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"U+0302" : "CombCircum", |
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"U+0303" : "CombTilde", |
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"U+0304" : "CombMacron", |
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"U+0306" : "CombBreve", |
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"U+0307" : "CombDot", |
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"U+0308" : "CombDiaer", |
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"U+030A" : "CombRing", |
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"U+030B" : "CombDblAcute", |
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"U+030C" : "CombCaron", |
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"U+0327" : "CombCedilla", |
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"U+0328" : "CombOgonek", |
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"U+0345" : "CombYpogeg", |
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"U+20AC" : "€", |
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"U+3099" : "CombVoice", |
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"U+309A" : "CombSVoice", |
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} |
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function get_key(evt){ |
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var key = keyId[evt.keyIdentifier] || evt.keyIdentifier, |
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ctrl = evt.ctrlKey ? 'C-' : '', |
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meta = (evt.metaKey || evt.altKey) ? 'M-' : '', |
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shift = evt.shiftKey ? 'S-' : ''; |
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if (evt.shiftKey){ |
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if (/^[a-z]$/.test(key)) |
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return ctrl+meta+key.toUpperCase(); |
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if (/^[0-9]$/.test(key)) { |
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switch(key) { |
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// TODO
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case "4": |
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key = "$"; |
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break; |
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}; |
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return key; |
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} |
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if (/^(Enter|Space|BackSpace|Tab|Esc|Home|End|Left|Right|Up|Down|PageUp|PageDown|F(\d\d?))$/.test(key)) |
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return ctrl+meta+shift+key; |
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} |
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return ctrl+meta+key; |
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} |
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function guarantee_stylesheet(){ |
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var thehead = document.getElementsByTagName('head')[0]; |
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if (document.getElementsByTagName('style').length < 1){ |
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var thesty = document.createElement('style'); |
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thesty.innerHTML = thesty.innerHTML + ' div#diag_kludge{color: #0099ff;} '; |
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thesty.innerHTML = thesty.innerHTML + ' div#diag_kludge{background-color: #660000;} '; |
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thehead.appendChild(thesty); |
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divv = document.getElementById('diag_kludge'); |
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titl = headd.getElementsByTagName('title')[0]; |
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} |
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} |
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window.addEventListener('load', guarantee_stylesheet, false); |