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functions.js
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functions.js
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/** Toggle visibility
* @param string
* @return boolean
*/
function toggle(id) {
var el = document.getElementById(id);
el.className = (el.className == 'hidden' ? '' : 'hidden');
return true;
}
/** Set permanent cookie
* @param string
* @param number
* @param string optional
*/
function cookie(assign, days) {
var date = new Date();
date.setDate(date.getDate() + days);
document.cookie = assign + '; expires=' + date;
}
/** Verify current Adminer version
*/
function verifyVersion() {
cookie('adminer_version=0', 1);
var script = document.createElement('script');
script.src = location.protocol + '//www.adminer.org/version.php';
document.body.appendChild(script);
}
/** Get value of select
* @param HTMLSelectElement
* @return string
*/
function selectValue(select) {
var selected = select.options[select.selectedIndex];
return ((selected.attributes.value || {}).specified ? selected.value : selected.text);
}
/** Set checked class
* @param HTMLInputElement
*/
function trCheck(el) {
var tr = el.parentNode.parentNode;
tr.className = tr.className.replace(/(^|\s)checked(\s|$)/, '$2') + (el.checked ? ' checked' : '');
}
/** Check all elements matching given name
* @param HTMLInputElement
* @param RegExp
*/
function formCheck(el, name) {
var elems = el.form.elements;
for (var i=0; i < elems.length; i++) {
if (name.test(elems[i].name)) {
elems[i].checked = el.checked;
trCheck(elems[i]);
}
}
}
/** Check all rows in <table class="checkable">
*/
function tableCheck() {
var tables = document.getElementsByTagName('table');
for (var i=0; i < tables.length; i++) {
if (/(^|\s)checkable(\s|$)/.test(tables[i].className)) {
var trs = tables[i].getElementsByTagName('tr');
for (var j=0; j < trs.length; j++) {
trCheck(trs[j].firstChild.firstChild);
}
}
}
}
/** Uncheck single element
* @param string
*/
function formUncheck(id) {
var el = document.getElementById(id);
el.checked = false;
trCheck(el);
}
/** Get number of checked elements matching given name
* @param HTMLInputElement
* @param RegExp
* @return number
*/
function formChecked(el, name) {
var checked = 0;
var elems = el.form.elements;
for (var i=0; i < elems.length; i++) {
if (name.test(elems[i].name) && elems[i].checked) {
checked++;
}
}
return checked;
}
/** Select clicked row
* @param MouseEvent
*/
function tableClick(event) {
var click = (!window.getSelection || getSelection().isCollapsed);
var el = event.target || event.srcElement;
while (!/^tr$/i.test(el.tagName)) {
if (/^table$/i.test(el.tagName)) {
return;
}
if (/^(a|input|textarea)$/i.test(el.tagName)) {
click = false;
}
el = el.parentNode;
}
el = el.firstChild.firstChild;
if (click) {
el.click && el.click();
el.onclick && el.onclick();
}
trCheck(el);
}
/** Set HTML code of an element
* @param string
* @param string undefined to set parentNode to
*/
function setHtml(id, html) {
var el = document.getElementById(id);
if (el) {
if (html == undefined) {
el.parentNode.innerHTML = ' ';
} else {
el.innerHTML = html;
}
}
}
/** Find node position
* @param Node
* @return number
*/
function nodePosition(el) {
var pos = 0;
while (el = el.previousSibling) {
pos++;
}
return pos;
}
/** Go to the specified page
* @param string
* @param string
* @param [MouseEvent]
*/
function pageClick(href, page, event) {
if (!isNaN(page) && page) {
href += (page != 1 ? '&page=' + (page - 1) : '');
location.href = href;
}
}
/** Add row in select fieldset
* @param HTMLSelectElement
*/
function selectAddRow(field) {
field.onchange = function () {
selectFieldChange(field.form);
};
field.onchange();
var row = field.parentNode.cloneNode(true);
var selects = row.getElementsByTagName('select');
for (var i=0; i < selects.length; i++) {
selects[i].name = selects[i].name.replace(/[a-z]\[\d+/, '$&1');
selects[i].selectedIndex = 0;
}
var inputs = row.getElementsByTagName('input');
if (inputs.length) {
inputs[0].name = inputs[0].name.replace(/[a-z]\[\d+/, '$&1');
inputs[0].value = '';
inputs[0].className = '';
}
field.parentNode.parentNode.appendChild(row);
}
/** Check whether the query will be executed with index
* @param HTMLFormElement
*/
function selectFieldChange(form) {
var ok = (function () {
var inputs = form.getElementsByTagName('input');
for (var i=0; i < inputs.length; i++) {
var input = inputs[i];
if (/^fulltext/.test(input.name) && input.value) {
return true;
}
}
var ok = true;
var selects = form.getElementsByTagName('select');
for (var i=0; i < selects.length; i++) {
var select = selects[i];
var col = selectValue(select);
var match = /^(where.+)col\]/.exec(select.name);
if (match) {
var op = selectValue(form[match[1] + 'op]']);
var val = form[match[1] + 'val]'].value;
if (col in indexColumns && (!/LIKE|REGEXP/.test(op) || (op == 'LIKE' && val.charAt(0) != '%'))) {
return true;
} else if (col || val) {
ok = false;
}
}
//! take grouping in select into account
if (col && /^order/.test(select.name)) {
if (!(col in indexColumns)) {
ok = false;
}
break;
}
}
return ok;
})();
setHtml('noindex', (ok ? '' : '!'));
}
/** Send form by Ctrl+Enter on <select> and <textarea>
* @param KeyboardEvent
* @param [string]
* @return boolean
*/
function bodyKeydown(event, button) {
var target = event.target || event.srcElement;
if (event.ctrlKey && (event.keyCode == 13 || event.keyCode == 10) && !event.altKey && !event.metaKey && /select|textarea|input/i.test(target.tagName)) { // 13|10 - Enter, shiftKey allowed
target.blur();
if (button) {
target.form[button].click();
} else {
target.form.submit();
}
return false;
}
return true;
}
/** Change focus by Ctrl+Up or Ctrl+Down
* @param KeyboardEvent
* @return boolean
*/
function editingKeydown(event) {
if ((event.keyCode == 40 || event.keyCode == 38) && event.ctrlKey && !event.altKey && !event.metaKey) { // 40 - Down, 38 - Up, shiftKey allowed
var target = event.target || event.srcElement;
var sibling = (event.keyCode == 40 ? 'nextSibling' : 'previousSibling');
var el = target.parentNode.parentNode[sibling];
if (el && (/^tr$/i.test(el.tagName) || (el = el[sibling])) && /^tr$/i.test(el.tagName) && (el = el.childNodes[nodePosition(target.parentNode)]) && (el = el.childNodes[nodePosition(target)])) {
el.focus();
}
return false;
}
if (event.shiftKey && !bodyKeydown(event, 'insert')) {
eventStop(event);
return false;
}
return true;
}
/** Disable maxlength for functions
* @param HTMLSelectElement
*/
function functionChange(select) {
var input = select.form[select.name.replace(/^function/, 'fields')];
if (selectValue(select)) {
if (input.origMaxLength === undefined) {
input.origMaxLength = input.maxLength;
}
input.removeAttribute('maxlength');
} else if (input.origMaxLength >= 0) {
input.maxLength = input.origMaxLength;
}
}
/** Create AJAX request
* @param string
* @param function (XMLHttpRequest)
* @param [string]
* @return XMLHttpRequest or false in case of an error
*/
function ajax(url, callback, data) {
var request = (window.XMLHttpRequest ? new XMLHttpRequest() : (window.ActiveXObject ? new ActiveXObject('Microsoft.XMLHTTP') : false));
if (request) {
request.open((data ? 'POST' : 'GET'), url);
if (data) {
request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
}
request.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
request.onreadystatechange = function () {
if (request.readyState == 4) {
callback(request);
}
};
request.send(data);
}
return request;
}
/** Use setHtml(key, value) for JSON response
* @param string
* @return XMLHttpRequest or false in case of an error
*/
function ajaxSetHtml(url) {
return ajax(url, function (request) {
if (request.status) {
var data = eval('(' + request.responseText + ')');
for (var key in data) {
setHtml(key, data[key]);
}
}
});
}
/** Display edit field
* @param HTMLElement
* @param MouseEvent
* @param number display textarea instead of input, 2 - load long text
*/
function selectDblClick(td, event, text) {
if (/input|textarea/i.test(td.firstChild.tagName)) {
return;
}
var original = td.innerHTML;
var input = document.createElement(text ? 'textarea' : 'input');
input.onkeydown = function (event) {
if (!event) {
event = window.event;
}
if (event.keyCode == 27 && !(event.ctrlKey || event.shiftKey || event.altKey || event.metaKey)) { // 27 - Esc
td.innerHTML = original;
}
};
var pos = event.rangeOffset;
var value = td.firstChild.alt || td.textContent || td.innerText;
input.style.width = Math.max(td.clientWidth - 14, 20) + 'px'; // 14 = 2 * (td.border + td.padding + input.border)
if (text) {
var rows = 1;
value.replace(/\n/g, function () {
rows++;
});
input.rows = rows;
}
if (value == '\u00A0' || td.getElementsByTagName('i').length) { // or i - NULL
value = '';
}
if (document.selection) {
var range = document.selection.createRange();
range.moveToPoint(event.clientX, event.clientY);
var range2 = range.duplicate();
range2.moveToElementText(td);
range2.setEndPoint('EndToEnd', range);
pos = range2.text.length;
}
td.innerHTML = '';
td.appendChild(input);
input.focus();
if (text == 2) { // long text
return ajax(location.href + '&' + encodeURIComponent(td.id) + '=', function (request) {
if (request.status) {
input.value = request.responseText;
input.name = td.id;
}
});
}
input.value = value;
input.name = td.id;
input.selectionStart = pos;
input.selectionEnd = pos;
if (document.selection) {
var range = document.selection.createRange();
range.moveEnd('character', -input.value.length + pos);
range.select();
}
}
/** Stop event propagation
* @param Event
*/
function eventStop(event) {
if (event.stopPropagation) {
event.stopPropagation();
} else {
event.cancelBubble = true;
}
}