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share/src/ext-core/src/core/EventManager.js  view on Meta::CPAN

        if(Ext.isIE9m && doScrollChk()){
            return true;
        }
        if(DOC.readyState == COMPLETE){
            fireDocReady();
            return true;
        }
        docReadyState || (docReadyProcId = setTimeout(arguments.callee, 2));
        return false;
    }

    var styles;
    function checkStyleSheets(e){
        styles || (styles = Ext.query('style, link[rel=stylesheet]'));
        if(styles.length == DOC.styleSheets.length){
            fireDocReady();
            return true;
        }
        docReadyState || (docReadyProcId = setTimeout(arguments.callee, 2));
        return false;
    }

    function OperaDOMContentLoaded(e){
        DOC.removeEventListener(DOMCONTENTLOADED, arguments.callee, false);
        checkStyleSheets();
    }

    function fireDocReady(e){
        if(!docReadyState){
            docReadyState = true; //only attempt listener removal once

            if(docReadyProcId){
                clearTimeout(docReadyProcId);
            }
            if(DETECT_NATIVE) {
                DOC.removeEventListener(DOMCONTENTLOADED, fireDocReady, false);
            }
            if(Ext.isIE9m && checkReadyState.bindIE){  //was this was actually set ??
                DOC.detachEvent('onreadystatechange', checkReadyState);
            }
            E.un(WINDOW, "load", arguments.callee);
        }
        if(docReadyEvent && !Ext.isReady){
            Ext.isReady = true;
            docReadyEvent.fire();
            docReadyEvent.listeners = [];
        }

    }

    function initDocReady(){
        docReadyEvent || (docReadyEvent = new Ext.util.Event());
        if (DETECT_NATIVE) {
            DOC.addEventListener(DOMCONTENTLOADED, fireDocReady, false);
        }
        /*
         * Handle additional (exceptional) detection strategies here
         */
        if (Ext.isIE9m){
            //Use readystatechange as a backup AND primary detection mechanism for a FRAME/IFRAME
            //See if page is already loaded
            if(!checkReadyState()){
                checkReadyState.bindIE = true;
                DOC.attachEvent('onreadystatechange', checkReadyState);
            }

        }else if(Ext.isOpera ){
            /* Notes:
               Opera needs special treatment needed here because CSS rules are NOT QUITE
               available after DOMContentLoaded is raised.
            */

            //See if page is already loaded and all styleSheets are in place
            (DOC.readyState == COMPLETE && checkStyleSheets()) ||
                DOC.addEventListener(DOMCONTENTLOADED, OperaDOMContentLoaded, false);

        }else if (Ext.isWebKit){
            //Fallback for older Webkits without DOMCONTENTLOADED support
            checkReadyState();
        }
        // no matter what, make sure it fires on load
        E.on(WINDOW, "load", fireDocReady);
    }

    function createTargeted(h, o){
        return function(){
            var args = Ext.toArray(arguments);
            if(o.target == Ext.EventObject.setEvent(args[0]).target){
                h.apply(this, args);
            }
        };
    }

    function createBuffered(h, o, task){
        return function(e){
            // create new event object impl so new events don't wipe out properties
            task.delay(o.buffer, h, null, [new Ext.EventObjectImpl(e)]);
        };
    }

    function createSingle(h, el, ename, fn, scope){
        return function(e){
            Ext.EventManager.removeListener(el, ename, fn, scope);
            h(e);
        };
    }

    function createDelayed(h, o, fn){
        return function(e){
            var task = new Ext.util.DelayedTask(h);
            if(!fn.tasks) {
                fn.tasks = [];
            }
            fn.tasks.push(task);
            task.delay(o.delay || 10, h, null, [new Ext.EventObjectImpl(e)]);
        };
    }

    function listen(element, ename, opt, fn, scope){
        var o = (!opt || typeof opt == "boolean") ? {} : opt,