waitUntilExists

README.md

This through lint and minified.

waitUntilExists-min.js

(function(){var e={pendingFunctions:[],loopAndCall:function(){if(!e.pendingFunctions.length)return;for(var t=0;t<e.pendingFunctions.length;t++){var n=e.pendingFunctions[t],r=document.getElementById(n.id);n.id===document&&(r=document.body);if(r){var i=n.f;e.pendingFunctions.splice(t,1);n.c==="itself"&&(n.c=r);i.call(n.c);t--}}},globalInterval:setInterval(function(){e.loopAndCall()},5)};if(document.addEventListener){document.addEventListener("DOMNodeInserted",e.loopAndCall,!1);clearInterval(e.globalInterval)}var t=function(t,n,r){r=r||window;if(typeof t=="function"){r=n;n=t;t=document}e.pendingFunctions.push({f:n,id:t,c:r})};t.stop=function(t,n){for(var r=0;r<e.pendingFunctions.length;r++)e.pendingFunctions[r].id===t&&(typeof n=="undefined"||e.pendingFunctions[r].f===n)&&e.pendingFunctions.splice(r,1)};t.stopAll=function(){e.pendingFunctions=[]};window.waitUntilExists=t})();

waitUntilExists.js

/*
 * Wait Until Exists Version v0.2 - http://javascriptisawesome.blogspot.com/
 *
 *
 * TERMS OF USE - Wait Until Exists
 *
 * Open source under the BSD License.
 *
 * Copyright © 2011 Ivan Castellanos
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 *
 * Neither the name of the author nor the names of contributors may be used to endorse
 * or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 *  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
*/
(function() {
  var _waitUntilExists = {
    pendingFunctions : [],
    loopAndCall : function() {
      if(!_waitUntilExists.pendingFunctions.length) {
        return;
      }
      for(var i=0;i<_waitUntilExists.pendingFunctions.length;i++) {
        var obj = _waitUntilExists.pendingFunctions[i];
        var resolution = document.getElementById(obj.id);
        if(obj.id === document) {
          resolution = document.body;
        }
        if(resolution) {
          var _f = obj.f;
          _waitUntilExists.pendingFunctions.splice(i, 1);
          if(obj.c === "itself") {
            obj.c = resolution;
          }
          _f.call(obj.c);
          i--;
        }
      }
    },
    globalInterval : setInterval(function() {_waitUntilExists.loopAndCall();},5)
  };

  if(document.addEventListener) {
    document.addEventListener("DOMNodeInserted", _waitUntilExists.loopAndCall, false);
    clearInterval(_waitUntilExists.globalInterval);
  }
  var waitUntilExists = function(id,theFunction,context) {
    context = context || window;
    if(typeof id === "function") {
      context = theFunction;
      theFunction = id;
      id=document;
    }
    _waitUntilExists.pendingFunctions.push({
      f:theFunction,
      id:id,
      c:context
    });
  };
  waitUntilExists.stop = function(id,f) {
    for(var i=0;i<_waitUntilExists.pendingFunctions.length;i++) {
      if(_waitUntilExists.pendingFunctions[i].id === id &&
         (typeof f === "undefined" ||
          _waitUntilExists.pendingFunctions[i].f === f)) {
        _waitUntilExists.pendingFunctions.splice(i, 1);
      }
    }
  };
  waitUntilExists.stopAll = function() {
    _waitUntilExists.pendingFunctions = [];
  };
  window.waitUntilExists = waitUntilExists;
})();