META-INF.resources.primefaces.forms.forms.selectlistbox.js Maven / Gradle / Ivy

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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.

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/**
 * PrimeFaces SelectListbox Widget
 */
PrimeFaces.widget.SelectListbox = PrimeFaces.widget.BaseWidget.extend({

    init: function(cfg) {
        this._super(cfg);

        this.input = $(this.jqId + '_input'),
        this.listContainer = this.jq.children('.ui-selectlistbox-listcontainer');
        this.listElement = this.listContainer.children('.ui-selectlistbox-list');
        this.options = $(this.input).children('option');
        this.allItems = this.listElement.find('.ui-selectlistbox-item');
        this.items = this.allItems.filter(':not(.ui-state-disabled)');

        //scroll to selected
        var selected = this.options.filter(':selected:not(:disabled)');
        if(selected.length) {
            PrimeFaces.scrollInView(this.listContainer, this.items.eq(selected.eq(0).index()));
        }

        this.bindEvents();

        //pfs metadata
        this.input.data(PrimeFaces.CLIENT_ID_DATA, this.id);
    },

    bindEvents: function() {
        var $this = this;

        //items
        this.items.on('mouseover.selectListbox', function() {
            var item = $(this);
            if(!item.hasClass('ui-state-highlight')) {
                item.addClass('ui-state-hover');
            }
        })
        .on('mouseout.selectListbox', function() {
            $(this).removeClass('ui-state-hover');
        })
        .on('dblclick.selectListbox', function(e) {
            $this.input.trigger('dblclick');

            PrimeFaces.clearSelection();
            e.preventDefault();
        });

        //input
        this.input.on('focus.selectListbox', function() {
            $this.jq.addClass('ui-state-focus');
        }).on('blur.selectListbox', function() {
            $this.jq.removeClass('ui-state-focus');
        });

        if(this.cfg.filter) {
            this.filterInput = this.jq.find('> div.ui-selectlistbox-filter-container > input.ui-selectlistbox-filter');
            PrimeFaces.skinInput(this.filterInput);
            this.filterInput.on('keyup.selectListbox', function(e) {
                $this.filter(this.value);
            });

            this.setupFilterMatcher();
        }
    },

    unselectAll: function() {
        this.items.removeClass('ui-state-highlight ui-state-hover');
        this.options.filter(':selected').prop('selected', false);
    },

    selectItem: function(item) {
        item.addClass('ui-state-highlight').removeClass('ui-state-hover');
        this.options.eq(item.index()).prop('selected', true);
    },

    unselectItem: function(item) {
        item.removeClass('ui-state-highlight');
        this.options.eq(item.index()).prop('selected', false);
    },

    setupFilterMatcher: function() {
        this.cfg.filterMatchMode = this.cfg.filterMatchMode||'startsWith';
        this.filterMatchers = {
            'startsWith': this.startsWithFilter
            ,'contains': this.containsFilter
            ,'endsWith': this.endsWithFilter
            ,'custom': this.cfg.filterFunction
        };

        this.filterMatcher = this.filterMatchers[this.cfg.filterMatchMode];
    },

    startsWithFilter: function(value, filter) {
        return value.indexOf(filter) === 0;
    },

    containsFilter: function(value, filter) {
        return value.indexOf(filter) !== -1;
    },

    endsWithFilter: function(value, filter) {
        return value.indexOf(filter, value.length - filter.length) !== -1;
    },

    filter: function(value) {
        var filterValue = this.cfg.caseSensitive ? $.trim(value) : $.trim(value).toLowerCase();

        if(filterValue === '') {
            this.items.filter(':hidden').show();
        }
        else {
            for(var i = 0; i < this.options.length; i++) {
                var option = this.options.eq(i),
                itemLabel = this.cfg.caseSensitive ? option.text() : option.text().toLowerCase(),
                item = this.items.eq(i);

                if(this.filterMatcher(itemLabel, filterValue))
                    item.show();
                else
                    item.hide();
            }
        }
    }
});