// Source DRUPAL
// Declaration
var App = App || {};
// Set the variable that indicates if JavaScript behaviors should be applied
App.jsEnabled = document.getElementsByTagName && document.createElement && document.createTextNode && document.documentElement && document.getElementById;
// Returns the position of the mouse cursor based on the event object passed
App.mousePosition = function(e) {
return { x: e.clientX + document.documentElement.scrollLeft, y: e.clientY + document.documentElement.scrollTop };
};
// Global Killswitch on the element
if (App.jsEnabled) {
document.documentElement.className = 'js';
}
// Textarea
App.textareaAttach = function() {
$('textarea.resizable:not(.processed)').each(function() {
var textarea = $(this).addClass('processed'), staticOffset = null;
$(this).wrap('')
.parent().append($('').mousedown(startDrag));
var grippie = $('div.grippie', $(this).parent())[0];
grippie.style.marginRight = (grippie.offsetWidth - $(this)[0].offsetWidth) +'px';
function startDrag(e) {
staticOffset = textarea.height() - App.mousePosition(e).y;
textarea.css('opacity', 0.25);
$(document).mousemove(performDrag).mouseup(endDrag);
return false;
}
function performDrag(e) {
textarea.height(Math.max(32, staticOffset + App.mousePosition(e).y) + 'px');
return false;
}
function endDrag(e) {
$(document).unmousemove(performDrag).unmouseup(endDrag);
textarea.css('opacity', 1);
}
});
}
if (App.jsEnabled) {
$(document).ready(App.textareaAttach);
}