custom.js

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/*
 * Ext JS Library 1.1.1
 * Copyright(c) 2006-2007, Ext JS, LLC.
 * [e-mail]
 * 
 * http://www.extjs.com/license
 */

Ext.onReady(function(){
    var ds = new Ext.data.Store({
        proxy: new Ext.data.ScriptTagProxy({
            url: 'http://extjs.com/forum/topics-remote.php'
        }),
        reader: new Ext.data.JsonReader({
            root: 'topics',
            totalProperty: 'totalCount',
            id: 'post_id'
        }, [
            {name: 'postId', mapping: 'post_id'},
            {name: 'title', mapping: 'topic_title'},
            {name: 'topicId', mapping: 'topic_id'},
            {name: 'author', mapping: 'author'},
            {name: 'lastPost', mapping: 'post_time', type: 'date', dateFormat: 'timestamp'},
            {name: 'excerpt', mapping: 'post_text'}
        ]),

        baseParams: {limit:20, forumId: 4}
    });

    // Custom rendering Template for the View
    var resultTpl = new Ext.Template(
        '<div class="search-item">',
            '<h3><span>{lastPost:date("M j, Y")}<br />by {author}</span>',
            '<a href="http://extjs.com/forum/showthread.php?t={topicId}&p={postId}" target="_blank">{title}</a></h3>',
            '<p>{excerpt}</p>',
        '</div>'
    );

    var view = new Ext.View('search-results', resultTpl, {store: ds});

    var tb = new Ext.Toolbar('search-tb', [
        'Search: ', ' ',
        new Ext.app.SearchField({
            store: ds,
            width:320
        })
    ]);

    new Ext.PagingToolbar('page-tb', ds, {
        pageSize: 20,
        displayInfo: true,
        displayMsg: 'Topics {0} - {1} of {2}',
        emptyMsg: "No topics to display"
    });
    
    ds.load({params:{start:0, limit:20, forumId: 4}});
});

/**
 * The custom search field
 */

Ext.app.SearchField = Ext.extend(Ext.form.TwinTriggerField, {
    initComponent : function(){
        Ext.app.SearchField.superclass.initComponent.call(this);
        this.on('specialkey', function(f, e){
            if(e.getKey() == e.ENTER){
                this.onTrigger2Click();
            }
        }, this);
    },

    validationEvent:false,
    validateOnBlur:false,
    trigger1Class:'x-form-clear-trigger',
    trigger2Class:'x-form-search-trigger',
    hideTrigger1:true,
    width:180,
    hasSearch : false,
    paramName : 'query',

    onTrigger1Click : function(){
        if(this.hasSearch){
            var o = {start: 0};
            o[this.paramName] = '';
            this.store.reload({params:o});
            this.el.dom.value = '';
            this.triggers[0].hide();
            this.hasSearch = false;
        }
    },

    onTrigger2Click : function(){
        var v = this.getRawValue();
        if(v.length < 1){
            this.onTrigger1Click();
            return;
        }
        var o = {start: 0};
        o[this.paramName] = v;
        this.store.reload({params:o});
        this.hasSearch = true;
        this.triggers[0].show();
    }
});