qooxdoo "chips" UI component

If you’ve ever used a tagging interface in a web application, you’re probably familiar with the “chip” interface. Examples abound (AngularJS Material, Materialize, and the tags on StackOverflow, to name a few).

We wanted to use chips in a qooxdoo application, so we had to roll our own component.

There are lots of other features I could imagine adding:

more configurability for the chips’ appearance, including changing background color, radius, and the “delete” button image
removing the delete buttons from the chips
better control over the position of the input cursor and width of the suggestions dropdown
more interesting developer-specified filtering of the suggestions list
better keyboard control — backspace to delete chips, arrow keys to move between the chips and insert text

But I think there’s enough here to make it worth sharing.

Paste this code into the qooxdoo playground.

qx.Class.define ("diesel.ctl.chip", {
    extend: qx.ui.container.Composite,

    construct: function (data, caption) {
        var l = new qx.ui.layout.Atom();
        l.setGap (4);

        console.log ('[diesel.ctl.chip constructor] this: ', this);

        this.base (arguments);
        this._setLayout (l);

        this.__init ();

        if (typeof data !== "undefined")
        {
            this.setData (data);
        }
        if (typeof caption !== "undefined")
        {
            this.setCaption (caption);
        }
    },


    events: {
        deleteClicked: "qx.event.type.Event"
    },

    properties: {
        data: {
            init: null
        },
        caption: {
            check: "String",
            init: '',
            apply: "applyCaption"
        }
    },

    members: {

        __l_caption: null,
        __btn_delete: null,


        applyCaption: function (value) {
            this.__l_caption.setValue (value);
        },

        on_btn_delete_click: function () {
            this.fireEvent ('deleteClicked');
        },

        __init: function () {
            this.setPaddingLeft (8);
            this.setPaddingRight (4);

            var d = new qx.ui.decoration.Decorator ().set ({
                backgroundColor: '#ccf',
                radius: 4
            });
            this.set ({decorator: d});

            var o = new qx.ui.basic.Label ('');

            o.setValue (this.getCaption ());
            this.add (o);
            this.__l_caption = o;

            // high-res "x" button image
            o = new qx.ui.basic.Image ("data:image/png;base64,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");
            o.set ({
                scale: true,
                width: 16,
                height: 16
            });

            o.addListener ("click", this.on_btn_delete_click, this);

            this.add (o);

            this.__btn_delete = o;
        }
    }

});


qx.Class.define ("diesel.ctl.AutoVirtualComboBox", {
    extend: qx.ui.form.VirtualComboBox,

    properties: {
        matchAtStart : {
            check: "Boolean",
            apply: "applyCheckAtStart"
        }
    },

    events : {
        newValueEntered : "qx.event.type.Data",
        valueSelected : "qx.event.type.Data"
    },

    members: {
        __as_textfield: null,
        __as_dropdown: null,

        __checkAtStart: false,

        applyCheckAtStart: function (value) {
            this.__checkAtStart = value;
        },

        update_dropdown_contents: function () {
            var tf_val = this.__as_textfield.getValue ().trim ().toLowerCase ();

            // is it the right thing to do to keep replacing the delegate on every keystroke?  We keep using
            // the same function, so in theory, if we could just trigger the delegate, we could avoid replacing
            // the delegate over and over; then again, we only have to compute tf_val once this way, instead
            // of having to compute it for every row in the model.

            // This is a hack -- in order to get the label associated with each object in the data model,
            // we have to use the labelPath; the data object doesn't have a function like data.getLabel().  But
            // if you know the label path (e.g. "foo"), you can find the label string in $$user_foo...  You probably
            // shouldn't be actually referencing that directly, but it works...
            var prop = "$$user_" + this.getLabelPath ();

            this.setDelegate ({
                filter: function (data) {
                    if (tf_val === '')
                    {
                        return true;
                    }

                    if (this.__checkAtStart)
                    {
                        return data[prop].trim ().toLowerCase ().indexOf (tf_val) === 0;
                    }

                    return data[prop].trim ().toLowerCase ().indexOf (tf_val) >= 0;
                }
            });
        },

        _on_textfield_input: function (e) {
            this.open ();
            this.update_dropdown_contents ();
        },

        _on_changeValue: function (e) {
            var newval = e.getData ().trim ().toLowerCase ();

            var model = this.getModel ();

            // see note above about hacking by using the $$user_FOO property directly
            var prop = "$$user_" + this.getLabelPath ();
            for (var i = 0; i < model.length; i++)
            {
                var data = model.getItem (i);

                if (data[prop].trim().toLowerCase() == newval)
                {
                    this.fireDataEvent ("valueSelected", data);
                    return;
                }
            }

            this.fireDataEvent ("newValueEntered", e.getData());
        },


        // overridden from ComboBox.js to not add the button control
        _createChildControlImpl: function (id, hash) {
            var control;

            switch (id)
            {
                case "button":
                    // create the button even though we aren't going to add it, because the parent class
                    // is probably full of references to this button and we don't want to break those.
                    control = new qx.ui.form.Button ();
                    control.setFocusable (false);
                    control.setKeepActive (true);
                    control.addState ("inner");
                    control.addListener ("execute", this.toggle, this);
                    //this._add(control);
                    break;
            }

            return control || this.base (arguments, id);
        }

    },

    construct: function () {
        this.base (arguments);

        this.__as_textfield = this.getChildControl ("textfield");
        this.__as_textfield.addListener ('input', this._on_textfield_input, this);

        this.addListener ('changeValue', this._on_changeValue, this);

        var d = new qx.ui.decoration.Decorator ().set ({
            width: 0
        });
        this.__as_textfield.setDecorator (d);

        this.__as_dropdown = this.getChildControl ("dropdown");
    }
});



qx.Class.define ("diesel.ctl.chipbox", {
    extend: qx.ui.container.Composite,

    construct: function (values) {
        this.base (arguments, new qx.ui.layout.Canvas ());

        this.__init ();

        if (typeof values !== 'undefined')
        {
            this.setChips (values);
        }
    },

    events :
        {
            newValueEntered : "qx.event.type.Data",
            valueSelected: "qx.event.type.Data",
            changeValue : "qx.event.type.Data",
            chipAdded : "qx.event.type.Data",
            chipRemoved : "qx.event.type.Data"
        },

    properties : {

    },

    members: {
        __text_box: null,
        __chip_board: null,
        __chips: [],
        __combobox: null,

        __ignore_combobox_changeValue: false,

        setChips: function (values)
        {
            var i;

            this.__chip_board.removeAll ();

            this.__chips = [];
            for (i = 0; i < values.length; i++)
            {
                var c = this.__create_chip (values[i].data, values[i].caption);
                this.__chips.push (c);
                this.__chip_board.add (c);
            }

            if (this.__combobox !== null)
            {
                this.__chip_board.add (this.__combobox);
            }
        },

        addChip: function (data, caption) {
            var c;

            var str_data = JSON.stringify (data);
            for (var i = 0; i < this.__chips.length; i++)
            {
                c = this.__chips[i];
                if (JSON.stringify (c.getData ()) === str_data)
                {
                    this.cancelChipAdd ();
                    return;
                }
            }

            c = this.__create_chip (data, caption);

            if (this.__combobox !== null)
            {
                this.__chip_board.remove (this.__combobox);
            }
            this.__chips.push (c);
            this.__chip_board.add (c);

            if (this.__combobox !== null)
            {
                this.__ignore_combobox_changeValue = true;
                this.__combobox.setValue ('');
                this.__combobox.update_dropdown_contents ();
                this.__chip_board.add (this.__combobox);
                this.__ignore_combobox_changeValue = false;
            }

            this.fireDataEvent ("chipAdded", {
                value: c.getData ()
            });
        },

        cancelChipAdd: function () {
            this.__ignore_combobox_changeValue = true;
            this.__combobox.setValue ('');
            this.__combobox.update_dropdown_contents ();
            this.__ignore_combobox_changeValue = false;
        },

        setSuggestions: function (suggestions, label_path) {
            var model = qx.data.marshal.Json.createModel(suggestions);

            this.__combobox.setLabelPath (label_path);
            this.__combobox.setModel (model);
        },

        _on_combobox_newValueEntered: function (e) {
            if (this.__ignore_combobox_changeValue)
            {
                return;
            }

            this.fireDataEvent ('newValueEntered', e.getData ());
        },

        _on_combobox_valueSelected: function (e) {
            if (this.__ignore_combobox_changeValue)
            {
                return;
            }

            this.fireDataEvent ('valueSelected', e.getData ());
        },

        __remove_chip: function (c) {
            this.__chip_board.remove (c);

            var new_chips = [];
            for (var i = 0; i < this.__chips.length; i++)
            {
                if (this.__chips[i] !== c)
                {
                    new_chips.push (this.__chips[i]);
                }
            }

            this.__chips = new_chips;

            this.fireDataEvent ("chipRemoved", {
                value: c.getData ()
            });

        },

        __create_chip: function (data, caption) {
            var c = new diesel.ctl.chip (data, caption);

            c.addListener ("deleteClicked", function () {
                this.__remove_chip (c);
            }, this);

            return c;
        },

        __create_combobox: function () {
            if (this.__combobox !== null)
            {
                this.__chip_board.remove (this.__combobox);
            }

            o = new diesel.ctl.AutoVirtualComboBox ();
            o.addListener ('click', function (e) {
                // we need this in order to keep a click on the combobox from triggering the click event
                // on the chipboard, which would put the focus into the combobox, closing the popup!
                e.stopPropagation ();
            });

            o.addListener ('newValueEntered', this._on_combobox_newValueEntered, this);
            o.addListener ('valueSelected', this._on_combobox_valueSelected, this);

            o.set ({width: 200});

            var d = new qx.ui.decoration.Decorator ().set ({
                width: 0
            });
            o.setDecorator (d);

            this.__chip_board.add (o);
            this.__combobox = o;
        },

        __init: function () {
            var d = new qx.ui.decoration.Decorator ().set ({
                color: '#000',
                width: 1
            });
            this.setDecorator (d);

            var l = new qx.ui.layout.Flow ();
            l.set ({
                spacingX: 4,
                spacingY: 4
            });

            var o = new qx.ui.container.Composite (l);
            this.add (o, {left: 4, top: 4, right: 4, bottom: 4});
            this.__chip_board = o;

            this.__chip_board.addListener ('click', function (e) {
                if (this.__combobox !== null)
                {
                    this.__combobox.focus ();
                }
            }, this);


            this.__create_combobox ();
        }
    }

});

/**
 * ------------------------------------------------------------
 *
 * ------------------------------------------------------------
 */


function on_cb_newValueEntered (e)
{
    var value = e.getData ().trim ();
    console.log ("[on_cb_value_entered] value: " + value);

    if (value !== '')
    {
        console.log ("[on_cb_value_entered] adding chip; value: " + value);
        cb.addChip ({
            id: 0,
            canonical: 0,
            tag_caption: value,
            canonical_caption: ""
        }, value);
    }
    else
    {
        console.log ("[on_cb_value_entered] cancel adding chip...");
        cb.cancelChipAdd ();
    }
}


function on_cb_valueSelected (e)
{
    var data = e.getData ();

    var newdata;
    if (data.getCanonical () == 1)
    {
        newdata = {
            id: data.getId (),
            canonical: data.getCanonical (),
            tag_caption: data.getTag_caption (),
            canonical_caption: data.getCanonical_caption ()
        };
    }
    else
    {
        var canonical_caption = data.getCanonical_caption ();
        console.log ('[on_cb_valueSelected] looking for canonical form "' + canonical_caption + '"');

        newdata = canonical_forms[canonical_caption];
    }

    console.log ("[on_cb_value_entered] adding chip; data: " + JSON.stringify (newdata));

    cb.addChip (newdata, newdata.tag_caption);
}

var canonical_forms = [];
function load_cb_suggestions ()
{
    var data = [
        { id: 1, canonical: 1, tag_caption: "Alabama", canonical_caption: "" },
        { id: 2, canonical: 0, tag_caption: "AL", canonical_caption: "Alabama" },
        { id: 3, canonical: 1, tag_caption: "Alaska", canonical_caption: "" },
        { id: 4, canonical: 0, tag_caption: "AK", canonical_caption: "Alaska" },
        { id: 5, canonical: 1, tag_caption: "Arizona", canonical_caption: "" },
        { id: 6, canonical: 0, tag_caption: "AZ", canonical_caption: "Arizona" },
        { id: 7, canonical: 1, tag_caption: "Arkansas", canonical_caption: "" },
        { id: 8, canonical: 0, tag_caption: "AR", canonical_caption: "Arkansas" },
        { id: 9, canonical: 1, tag_caption: "California", canonical_caption: "" },
        { id: 10, canonical: 0, tag_caption: "CA", canonical_caption: "California" },
        { id: 11, canonical: 1, tag_caption: "Colorado", canonical_caption: "" },
        { id: 12, canonical: 0, tag_caption: "CO", canonical_caption: "Colorado" },
        { id: 13, canonical: 1, tag_caption: "Connecticut", canonical_caption: "" },
        { id: 14, canonical: 0, tag_caption: "CT", canonical_caption: "Connecticut" },
        { id: 15, canonical: 1, tag_caption: "Delaware", canonical_caption: "" },
        { id: 16, canonical: 0, tag_caption: "DE", canonical_caption: "Delaware" },
        { id: 17, canonical: 1, tag_caption: "District of Columbia", canonical_caption: "" },
        { id: 18, canonical: 0, tag_caption: "DC", canonical_caption: "District of Columbia" },
        { id: 19, canonical: 1, tag_caption: "Florida", canonical_caption: "" },
        { id: 20, canonical: 0, tag_caption: "FL", canonical_caption: "Florida" },
        { id: 21, canonical: 1, tag_caption: "Georgia", canonical_caption: "" },
        { id: 22, canonical: 0, tag_caption: "GA", canonical_caption: "Georgia" },
        { id: 23, canonical: 1, tag_caption: "Hawaii", canonical_caption: "" },
        { id: 24, canonical: 0, tag_caption: "HI", canonical_caption: "Hawaii" },
        { id: 25, canonical: 1, tag_caption: "Idaho", canonical_caption: "" },
        { id: 26, canonical: 0, tag_caption: "ID", canonical_caption: "Idaho" },
        { id: 27, canonical: 1, tag_caption: "Illinois", canonical_caption: "" },
        { id: 28, canonical: 0, tag_caption: "IL", canonical_caption: "Illinois" },
        { id: 29, canonical: 1, tag_caption: "Indiana", canonical_caption: "" },
        { id: 30, canonical: 0, tag_caption: "IN", canonical_caption: "Indiana" },
        { id: 31, canonical: 1, tag_caption: "Iowa", canonical_caption: "" },
        { id: 32, canonical: 0, tag_caption: "IA", canonical_caption: "Iowa" },
        { id: 33, canonical: 1, tag_caption: "Kansas", canonical_caption: "" },
        { id: 34, canonical: 0, tag_caption: "KS", canonical_caption: "Kansas" },
        { id: 35, canonical: 1, tag_caption: "Kentucky", canonical_caption: "" },
        { id: 36, canonical: 0, tag_caption: "KY", canonical_caption: "Kentucky" },
        { id: 37, canonical: 1, tag_caption: "Louisiana", canonical_caption: "" },
        { id: 38, canonical: 0, tag_caption: "LA", canonical_caption: "Louisiana" },
        { id: 39, canonical: 1, tag_caption: "Maine", canonical_caption: "" },
        { id: 40, canonical: 0, tag_caption: "ME", canonical_caption: "Maine" },
        { id: 41, canonical: 1, tag_caption: "Montana", canonical_caption: "" },
        { id: 42, canonical: 0, tag_caption: "MT", canonical_caption: "Montana" },
        { id: 43, canonical: 1, tag_caption: "Nebraska", canonical_caption: "" },
        { id: 44, canonical: 0, tag_caption: "NE", canonical_caption: "Nebraska" },
        { id: 45, canonical: 1, tag_caption: "Nevada", canonical_caption: "" },
        { id: 46, canonical: 0, tag_caption: "NV", canonical_caption: "Nevada" },
        { id: 47, canonical: 1, tag_caption: "New Hampshire", canonical_caption: "" },
        { id: 48, canonical: 0, tag_caption: "NH", canonical_caption: "New Hampshire" },
        { id: 49, canonical: 1, tag_caption: "New Jersey", canonical_caption: "" },
        { id: 50, canonical: 0, tag_caption: "NJ", canonical_caption: "New Jersey" },
        { id: 51, canonical: 1, tag_caption: "New Mexico", canonical_caption: "" },
        { id: 52, canonical: 0, tag_caption: "NM", canonical_caption: "New Mexico" },
        { id: 53, canonical: 1, tag_caption: "New York", canonical_caption: "" },
        { id: 54, canonical: 0, tag_caption: "NY", canonical_caption: "New York" },
        { id: 55, canonical: 1, tag_caption: "North Carolina", canonical_caption: "" },
        { id: 56, canonical: 0, tag_caption: "NC", canonical_caption: "North Carolina" },
        { id: 57, canonical: 1, tag_caption: "North Dakota", canonical_caption: "" },
        { id: 58, canonical: 0, tag_caption: "ND", canonical_caption: "North Dakota" },
        { id: 59, canonical: 1, tag_caption: "Ohio", canonical_caption: "" },
        { id: 60, canonical: 0, tag_caption: "OH", canonical_caption: "Ohio" },
        { id: 61, canonical: 1, tag_caption: "Oklahoma", canonical_caption: "" },
        { id: 62, canonical: 0, tag_caption: "OK", canonical_caption: "Oklahoma" },
        { id: 63, canonical: 1, tag_caption: "Oregon", canonical_caption: "" },
        { id: 64, canonical: 0, tag_caption: "OR", canonical_caption: "Oregon" },
        { id: 65, canonical: 1, tag_caption: "Maryland", canonical_caption: "" },
        { id: 66, canonical: 0, tag_caption: "MD", canonical_caption: "Maryland" },
        { id: 67, canonical: 1, tag_caption: "Massachusetts", canonical_caption: "" },
        { id: 68, canonical: 0, tag_caption: "MA", canonical_caption: "Massachusetts" },
        { id: 69, canonical: 1, tag_caption: "Michigan", canonical_caption: "" },
        { id: 70, canonical: 0, tag_caption: "MI", canonical_caption: "Michigan" },
        { id: 71, canonical: 1, tag_caption: "Minnesota", canonical_caption: "" },
        { id: 72, canonical: 0, tag_caption: "MN", canonical_caption: "Minnesota" },
        { id: 73, canonical: 1, tag_caption: "Mississippi", canonical_caption: "" },
        { id: 74, canonical: 0, tag_caption: "MS", canonical_caption: "Mississippi" },
        { id: 75, canonical: 1, tag_caption: "Missouri", canonical_caption: "" },
        { id: 76, canonical: 0, tag_caption: "MO", canonical_caption: "Missouri" },
        { id: 77, canonical: 1, tag_caption: "Pennsylvania", canonical_caption: "" },
        { id: 78, canonical: 0, tag_caption: "PA", canonical_caption: "Pennsylvania" },
        { id: 79, canonical: 1, tag_caption: "Rhode Island", canonical_caption: "" },
        { id: 80, canonical: 0, tag_caption: "RI", canonical_caption: "Rhode Island" },
        { id: 81, canonical: 1, tag_caption: "South Carolina", canonical_caption: "" },
        { id: 82, canonical: 0, tag_caption: "SC", canonical_caption: "South Carolina" },
        { id: 83, canonical: 1, tag_caption: "South Dakota", canonical_caption: "" },
        { id: 84, canonical: 0, tag_caption: "SD", canonical_caption: "South Dakota" },
        { id: 85, canonical: 1, tag_caption: "Tennessee", canonical_caption: "" },
        { id: 86, canonical: 0, tag_caption: "TN", canonical_caption: "Tennessee" },
        { id: 87, canonical: 1, tag_caption: "Texas", canonical_caption: "" },
        { id: 88, canonical: 0, tag_caption: "TX", canonical_caption: "Texas" },
        { id: 89, canonical: 1, tag_caption: "Utah", canonical_caption: "" },
        { id: 90, canonical: 0, tag_caption: "UT", canonical_caption: "Utah" },
        { id: 91, canonical: 1, tag_caption: "Vermont", canonical_caption: "" },
        { id: 92, canonical: 0, tag_caption: "VT", canonical_caption: "Vermont" },
        { id: 93, canonical: 1, tag_caption: "Virginia", canonical_caption: "" },
        { id: 94, canonical: 0, tag_caption: "VA", canonical_caption: "Virginia" },
        { id: 95, canonical: 1, tag_caption: "Washington", canonical_caption: "" },
        { id: 96, canonical: 0, tag_caption: "WA", canonical_caption: "Washington" },
        { id: 97, canonical: 1, tag_caption: "West Virginia", canonical_caption: "" },
        { id: 98, canonical: 0, tag_caption: "WV", canonical_caption: "West Virginia" },
        { id: 99, canonical: 1, tag_caption: "Wisconsin", canonical_caption: "" },
        { id: 100, canonical: 0, tag_caption: "WI", canonical_caption: "Wisconsin" },
        { id: 101, canonical: 1, tag_caption: "Wyoming", canonical_caption: "" },
        { id: 102, canonical: 0, tag_caption: "WY", canonical_caption: "Wyoming" }
    ];

    for (var i = 0; i < data.length; i++)
    {
        var o = data[i];

        if (o.canonical_caption)
        {
            o.tag_caption = o.tag_caption + " (" + o.canonical_caption + ")";
        }
        else
        {
            canonical_forms[o.tag_caption] = o;
        }
    }

    cb.setSuggestions (data, 'tag_caption');
}


var chip_values = [
    { data: { id: 93, canonical: 1, tag_caption: "Virginia", canonical_caption: "" }, caption: "Virginia" },
    { data: { id: 51, canonical: 1, tag_caption: "New Mexico", canonical_caption: "" }, caption: "New Mexico" },
    { data: { id: 55, canonical: 1, tag_caption: "North Carolina", canonical_caption: "" }, caption: "North Carolina"}
];

var cb = new diesel.ctl.chipbox ();
cb.set ({height: 120, width: 400});

cb.addListener ("newValueEntered", on_cb_newValueEntered);
cb.addListener ("valueSelected", on_cb_valueSelected);

console.log ("loading cb suggestions...");
load_cb_suggestions ();

// Document is the application root
var doc = this.getRoot ();

// Add button to document at fixed coordinates
doc.add (cb, { left: 50, top: 50 });

var b = new qx.ui.form.Button ("load chips");
b.addListener ('execute', function () {
   cb.setChips (chip_values);
});

doc.add (b, { left: 50, top: 180 });

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qx.Class.define ("diesel.ctl.chip", {

extend: qx.ui.container.Composite,

construct: function (data, caption) {

var l = new qx.ui.layout.Atom();

l.setGap (4);

console.log ('[diesel.ctl.chip constructor] this: ', this);

this.base (arguments);

this._setLayout (l);

this.__init ();

if (typeof data !== "undefined")

{

this.setData (data);

}

if (typeof caption !== "undefined")

{

this.setCaption (caption);

}

events: {

deleteClicked: "qx.event.type.Event"

properties: {

data: {

init: null

caption: {

check: "String",

init: '',

apply: "applyCaption"

}

members: {

__l_caption: null,

__btn_delete: null,

applyCaption: function (value) {

this.__l_caption.setValue (value);

on_btn_delete_click: function () {

this.fireEvent ('deleteClicked');

__init: function () {

this.setPaddingLeft (8);

this.setPaddingRight (4);

var d = new qx.ui.decoration.Decorator ().set ({

backgroundColor: '#ccf',

radius: 4

});

this.set ({decorator: d});

var o = new qx.ui.basic.Label ('');

o.setValue (this.getCaption ());

this.add (o);

this.__l_caption = o;

// high-res "x" button image

o = new qx.ui.basic.Image ("data:image/png;base64,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");

o.set ({

scale: true,

width: 16,

height: 16

});

o.addListener ("click", this.on_btn_delete_click, this);

this.add (o);

this.__btn_delete = o;

}

});

qx.Class.define ("diesel.ctl.AutoVirtualComboBox", {

extend: qx.ui.form.VirtualComboBox,

properties: {

matchAtStart : {

check: "Boolean",

apply: "applyCheckAtStart"

}

events : {

newValueEntered : "qx.event.type.Data",

valueSelected : "qx.event.type.Data"

members: {

__as_textfield: null,

__as_dropdown: null,

__checkAtStart: false,

applyCheckAtStart: function (value) {

this.__checkAtStart = value;

update_dropdown_contents: function () {

var tf_val = this.__as_textfield.getValue ().trim ().toLowerCase ();

// is it the right thing to do to keep replacing the delegate on every keystroke? We keep using

// the same function, so in theory, if we could just trigger the delegate, we could avoid replacing

// the delegate over and over; then again, we only have to compute tf_val once this way, instead

// of having to compute it for every row in the model.

// This is a hack -- in order to get the label associated with each object in the data model,

// we have to use the labelPath; the data object doesn't have a function like data.getLabel(). But

// if you know the label path (e.g. "foo"), you can find the label string in $$user_foo... You probably

// shouldn't be actually referencing that directly, but it works...

var prop = "$$user_" + this.getLabelPath ();

this.setDelegate ({

filter: function (data) {

if (tf_val === '')

{

return true;

}

if (this.__checkAtStart)

{

return data[prop].trim ().toLowerCase ().indexOf (tf_val) === 0;

}

return data[prop].trim ().toLowerCase ().indexOf (tf_val) >= 0;

}

});

_on_textfield_input: function (e) {

this.open ();

this.update_dropdown_contents ();

_on_changeValue: function (e) {

var newval = e.getData ().trim ().toLowerCase ();

var model = this.getModel ();

// see note above about hacking by using the $$user_FOO property directly

var prop = "$$user_" + this.getLabelPath ();

for (var i = 0; i < model.length; i++)

{

var data = model.getItem (i);

if (data[prop].trim().toLowerCase() == newval)

{

this.fireDataEvent ("valueSelected", data);

return;

}

this.fireDataEvent ("newValueEntered", e.getData());

// overridden from ComboBox.js to not add the button control

_createChildControlImpl: function (id, hash) {

var control;

switch (id)

{

case "button":

// create the button even though we aren't going to add it, because the parent class

// is probably full of references to this button and we don't want to break those.

control = new qx.ui.form.Button ();

control.setFocusable (false);

control.setKeepActive (true);

control.addState ("inner");

control.addListener ("execute", this.toggle, this);

//this._add(control);

break;

}

return control || this.base (arguments, id);

}

construct: function () {

this.base (arguments);

this.__as_textfield = this.getChildControl ("textfield");

this.__as_textfield.addListener ('input', this._on_textfield_input, this);

this.addListener ('changeValue', this._on_changeValue, this);

var d = new qx.ui.decoration.Decorator ().set ({

width: 0

});

this.__as_textfield.setDecorator (d);

this.__as_dropdown = this.getChildControl ("dropdown");

}

});

qx.Class.define ("diesel.ctl.chipbox", {

extend: qx.ui.container.Composite,

construct: function (values) {

this.base (arguments, new qx.ui.layout.Canvas ());

this.__init ();

if (typeof values !== 'undefined')

{

this.setChips (values);

}

events :

{

newValueEntered : "qx.event.type.Data",

valueSelected: "qx.event.type.Data",

changeValue : "qx.event.type.Data",

chipAdded : "qx.event.type.Data",

chipRemoved : "qx.event.type.Data"

properties : {

members: {

__text_box: null,

__chip_board: null,

__chips: [],

__combobox: null,

__ignore_combobox_changeValue: false,

setChips: function (values)

{

var i;

this.__chip_board.removeAll ();

this.__chips = [];

for (i = 0; i < values.length; i++)

{

var c = this.__create_chip (values[i].data, values[i].caption);

this.__chips.push (c);

this.__chip_board.add (c);

}

if (this.__combobox !== null)

{

this.__chip_board.add (this.__combobox);

}

addChip: function (data, caption) {

var c;

var str_data = JSON.stringify (data);

for (var i = 0; i < this.__chips.length; i++)

{

c = this.__chips[i];

if (JSON.stringify (c.getData ()) === str_data)

{

this.cancelChipAdd ();

return;

}

c = this.__create_chip (data, caption);

if (this.__combobox !== null)

{

this.__chip_board.remove (this.__combobox);

}

this.__chips.push (c);

this.__chip_board.add (c);

if (this.__combobox !== null)

{

this.__ignore_combobox_changeValue = true;

this.__combobox.setValue ('');

this.__combobox.update_dropdown_contents ();

this.__chip_board.add (this.__combobox);

this.__ignore_combobox_changeValue = false;

}

this.fireDataEvent ("chipAdded", {

value: c.getData ()

});

cancelChipAdd: function () {

this.__ignore_combobox_changeValue = true;

this.__combobox.setValue ('');

this.__combobox.update_dropdown_contents ();

this.__ignore_combobox_changeValue = false;

setSuggestions: function (suggestions, label_path) {

var model = qx.data.marshal.Json.createModel(suggestions);

this.__combobox.setLabelPath (label_path);

this.__combobox.setModel (model);

_on_combobox_newValueEntered: function (e) {

if (this.__ignore_combobox_changeValue)

{

return;

}

this.fireDataEvent ('newValueEntered', e.getData ());

_on_combobox_valueSelected: function (e) {

if (this.__ignore_combobox_changeValue)

{

return;

}

this.fireDataEvent ('valueSelected', e.getData ());

__remove_chip: function (c) {

this.__chip_board.remove (c);

var new_chips = [];

for (var i = 0; i < this.__chips.length; i++)

{

if (this.__chips[i] !== c)

{

new_chips.push (this.__chips[i]);

}

this.__chips = new_chips;

this.fireDataEvent ("chipRemoved", {

value: c.getData ()

});

__create_chip: function (data, caption) {

var c = new diesel.ctl.chip (data, caption);

c.addListener ("deleteClicked", function () {

this.__remove_chip (c);

}, this);

return c;

__create_combobox: function () {

if (this.__combobox !== null)

{

this.__chip_board.remove (this.__combobox);

}

o = new diesel.ctl.AutoVirtualComboBox ();

o.addListener ('click', function (e) {

// we need this in order to keep a click on the combobox from triggering the click event

// on the chipboard, which would put the focus into the combobox, closing the popup!

e.stopPropagation ();

});

o.addListener ('newValueEntered', this._on_combobox_newValueEntered, this);

o.addListener ('valueSelected', this._on_combobox_valueSelected, this);

o.set ({width: 200});

var d = new qx.ui.decoration.Decorator ().set ({

width: 0

});

o.setDecorator (d);

this.__chip_board.add (o);

this.__combobox = o;

__init: function () {

var d = new qx.ui.decoration.Decorator ().set ({

color: '#000',

width: 1

});

this.setDecorator (d);

var l = new qx.ui.layout.Flow ();

l.set ({

spacingX: 4,

spacingY: 4

});

var o = new qx.ui.container.Composite (l);

this.add (o, {left: 4, top: 4, right: 4, bottom: 4});

this.__chip_board = o;

this.__chip_board.addListener ('click', function (e) {

if (this.__combobox !== null)

{

this.__combobox.focus ();

}

}, this);

this.__create_combobox ();

}

});

/**

* ------------------------------------------------------------

function on_cb_newValueEntered (e)

{

var value = e.getData ().trim ();

console.log ("[on_cb_value_entered] value: " + value);

if (value !== '')

{

console.log ("[on_cb_value_entered] adding chip; value: " + value);

cb.addChip ({

id: 0,

canonical: 0,

tag_caption: value,

canonical_caption: ""

}, value);

}

else

{

console.log ("[on_cb_value_entered] cancel adding chip...");

cb.cancelChipAdd ();

}

function on_cb_valueSelected (e)

{

var data = e.getData ();

var newdata;

if (data.getCanonical () == 1)

{

newdata = {

id: data.getId (),

canonical: data.getCanonical (),

tag_caption: data.getTag_caption (),

canonical_caption: data.getCanonical_caption ()

};

}

else

{

var canonical_caption = data.getCanonical_caption ();

console.log ('[on_cb_valueSelected] looking for canonical form "' + canonical_caption + '"');

newdata = canonical_forms[canonical_caption];

}

console.log ("[on_cb_value_entered] adding chip; data: " + JSON.stringify (newdata));

cb.addChip (newdata, newdata.tag_caption);

}

var canonical_forms = [];

function load_cb_suggestions ()

{

var data = [

{ id: 1, canonical: 1, tag_caption: "Alabama", canonical_caption: "" },

{ id: 2, canonical: 0, tag_caption: "AL", canonical_caption: "Alabama" },

{ id: 3, canonical: 1, tag_caption: "Alaska", canonical_caption: "" },

{ id: 4, canonical: 0, tag_caption: "AK", canonical_caption: "Alaska" },

{ id: 5, canonical: 1, tag_caption: "Arizona", canonical_caption: "" },

{ id: 6, canonical: 0, tag_caption: "AZ", canonical_caption: "Arizona" },

{ id: 7, canonical: 1, tag_caption: "Arkansas", canonical_caption: "" },

{ id: 8, canonical: 0, tag_caption: "AR", canonical_caption: "Arkansas" },

{ id: 9, canonical: 1, tag_caption: "California", canonical_caption: "" },

{ id: 10, canonical: 0, tag_caption: "CA", canonical_caption: "California" },

{ id: 11, canonical: 1, tag_caption: "Colorado", canonical_caption: "" },

{ id: 12, canonical: 0, tag_caption: "CO", canonical_caption: "Colorado" },

{ id: 13, canonical: 1, tag_caption: "Connecticut", canonical_caption: "" },

{ id: 14, canonical: 0, tag_caption: "CT", canonical_caption: "Connecticut" },

{ id: 15, canonical: 1, tag_caption: "Delaware", canonical_caption: "" },

{ id: 16, canonical: 0, tag_caption: "DE", canonical_caption: "Delaware" },

{ id: 17, canonical: 1, tag_caption: "District of Columbia", canonical_caption: "" },

{ id: 18, canonical: 0, tag_caption: "DC", canonical_caption: "District of Columbia" },

{ id: 19, canonical: 1, tag_caption: "Florida", canonical_caption: "" },

{ id: 20, canonical: 0, tag_caption: "FL", canonical_caption: "Florida" },

{ id: 21, canonical: 1, tag_caption: "Georgia", canonical_caption: "" },

{ id: 22, canonical: 0, tag_caption: "GA", canonical_caption: "Georgia" },

{ id: 23, canonical: 1, tag_caption: "Hawaii", canonical_caption: "" },

{ id: 24, canonical: 0, tag_caption: "HI", canonical_caption: "Hawaii" },

{ id: 25, canonical: 1, tag_caption: "Idaho", canonical_caption: "" },

{ id: 26, canonical: 0, tag_caption: "ID", canonical_caption: "Idaho" },

{ id: 27, canonical: 1, tag_caption: "Illinois", canonical_caption: "" },

{ id: 28, canonical: 0, tag_caption: "IL", canonical_caption: "Illinois" },

{ id: 29, canonical: 1, tag_caption: "Indiana", canonical_caption: "" },

{ id: 30, canonical: 0, tag_caption: "IN", canonical_caption: "Indiana" },

{ id: 31, canonical: 1, tag_caption: "Iowa", canonical_caption: "" },

{ id: 32, canonical: 0, tag_caption: "IA", canonical_caption: "Iowa" },

{ id: 33, canonical: 1, tag_caption: "Kansas", canonical_caption: "" },

{ id: 34, canonical: 0, tag_caption: "KS", canonical_caption: "Kansas" },

{ id: 35, canonical: 1, tag_caption: "Kentucky", canonical_caption: "" },

{ id: 36, canonical: 0, tag_caption: "KY", canonical_caption: "Kentucky" },

{ id: 37, canonical: 1, tag_caption: "Louisiana", canonical_caption: "" },

{ id: 38, canonical: 0, tag_caption: "LA", canonical_caption: "Louisiana" },

{ id: 39, canonical: 1, tag_caption: "Maine", canonical_caption: "" },

{ id: 40, canonical: 0, tag_caption: "ME", canonical_caption: "Maine" },

{ id: 41, canonical: 1, tag_caption: "Montana", canonical_caption: "" },

{ id: 42, canonical: 0, tag_caption: "MT", canonical_caption: "Montana" },

{ id: 43, canonical: 1, tag_caption: "Nebraska", canonical_caption: "" },

{ id: 44, canonical: 0, tag_caption: "NE", canonical_caption: "Nebraska" },

{ id: 45, canonical: 1, tag_caption: "Nevada", canonical_caption: "" },

{ id: 46, canonical: 0, tag_caption: "NV", canonical_caption: "Nevada" },

{ id: 47, canonical: 1, tag_caption: "New Hampshire", canonical_caption: "" },

{ id: 48, canonical: 0, tag_caption: "NH", canonical_caption: "New Hampshire" },

{ id: 49, canonical: 1, tag_caption: "New Jersey", canonical_caption: "" },

{ id: 50, canonical: 0, tag_caption: "NJ", canonical_caption: "New Jersey" },

{ id: 51, canonical: 1, tag_caption: "New Mexico", canonical_caption: "" },

{ id: 52, canonical: 0, tag_caption: "NM", canonical_caption: "New Mexico" },

{ id: 53, canonical: 1, tag_caption: "New York", canonical_caption: "" },

{ id: 54, canonical: 0, tag_caption: "NY", canonical_caption: "New York" },

{ id: 55, canonical: 1, tag_caption: "North Carolina", canonical_caption: "" },

{ id: 56, canonical: 0, tag_caption: "NC", canonical_caption: "North Carolina" },

{ id: 57, canonical: 1, tag_caption: "North Dakota", canonical_caption: "" },

{ id: 58, canonical: 0, tag_caption: "ND", canonical_caption: "North Dakota" },

{ id: 59, canonical: 1, tag_caption: "Ohio", canonical_caption: "" },

{ id: 60, canonical: 0, tag_caption: "OH", canonical_caption: "Ohio" },

{ id: 61, canonical: 1, tag_caption: "Oklahoma", canonical_caption: "" },

{ id: 62, canonical: 0, tag_caption: "OK", canonical_caption: "Oklahoma" },

{ id: 63, canonical: 1, tag_caption: "Oregon", canonical_caption: "" },

{ id: 64, canonical: 0, tag_caption: "OR", canonical_caption: "Oregon" },

{ id: 65, canonical: 1, tag_caption: "Maryland", canonical_caption: "" },

{ id: 66, canonical: 0, tag_caption: "MD", canonical_caption: "Maryland" },

{ id: 67, canonical: 1, tag_caption: "Massachusetts", canonical_caption: "" },

{ id: 68, canonical: 0, tag_caption: "MA", canonical_caption: "Massachusetts" },

{ id: 69, canonical: 1, tag_caption: "Michigan", canonical_caption: "" },

{ id: 70, canonical: 0, tag_caption: "MI", canonical_caption: "Michigan" },

{ id: 71, canonical: 1, tag_caption: "Minnesota", canonical_caption: "" },

{ id: 72, canonical: 0, tag_caption: "MN", canonical_caption: "Minnesota" },

{ id: 73, canonical: 1, tag_caption: "Mississippi", canonical_caption: "" },

{ id: 74, canonical: 0, tag_caption: "MS", canonical_caption: "Mississippi" },

{ id: 75, canonical: 1, tag_caption: "Missouri", canonical_caption: "" },

{ id: 76, canonical: 0, tag_caption: "MO", canonical_caption: "Missouri" },

{ id: 77, canonical: 1, tag_caption: "Pennsylvania", canonical_caption: "" },

{ id: 78, canonical: 0, tag_caption: "PA", canonical_caption: "Pennsylvania" },

{ id: 79, canonical: 1, tag_caption: "Rhode Island", canonical_caption: "" },

{ id: 80, canonical: 0, tag_caption: "RI", canonical_caption: "Rhode Island" },

{ id: 81, canonical: 1, tag_caption: "South Carolina", canonical_caption: "" },

{ id: 82, canonical: 0, tag_caption: "SC", canonical_caption: "South Carolina" },

{ id: 83, canonical: 1, tag_caption: "South Dakota", canonical_caption: "" },

{ id: 84, canonical: 0, tag_caption: "SD", canonical_caption: "South Dakota" },

{ id: 85, canonical: 1, tag_caption: "Tennessee", canonical_caption: "" },

{ id: 86, canonical: 0, tag_caption: "TN", canonical_caption: "Tennessee" },

{ id: 87, canonical: 1, tag_caption: "Texas", canonical_caption: "" },

{ id: 88, canonical: 0, tag_caption: "TX", canonical_caption: "Texas" },

{ id: 89, canonical: 1, tag_caption: "Utah", canonical_caption: "" },

{ id: 90, canonical: 0, tag_caption: "UT", canonical_caption: "Utah" },

{ id: 91, canonical: 1, tag_caption: "Vermont", canonical_caption: "" },

{ id: 92, canonical: 0, tag_caption: "VT", canonical_caption: "Vermont" },

{ id: 93, canonical: 1, tag_caption: "Virginia", canonical_caption: "" },

{ id: 94, canonical: 0, tag_caption: "VA", canonical_caption: "Virginia" },

{ id: 95, canonical: 1, tag_caption: "Washington", canonical_caption: "" },

{ id: 96, canonical: 0, tag_caption: "WA", canonical_caption: "Washington" },

{ id: 97, canonical: 1, tag_caption: "West Virginia", canonical_caption: "" },

{ id: 98, canonical: 0, tag_caption: "WV", canonical_caption: "West Virginia" },

{ id: 99, canonical: 1, tag_caption: "Wisconsin", canonical_caption: "" },

{ id: 100, canonical: 0, tag_caption: "WI", canonical_caption: "Wisconsin" },

{ id: 101, canonical: 1, tag_caption: "Wyoming", canonical_caption: "" },

{ id: 102, canonical: 0, tag_caption: "WY", canonical_caption: "Wyoming" }

];

for (var i = 0; i < data.length; i++)

{

var o = data[i];

if (o.canonical_caption)

{

o.tag_caption = o.tag_caption + " (" + o.canonical_caption + ")";

}

else

{

canonical_forms[o.tag_caption] = o;

}

cb.setSuggestions (data, 'tag_caption');

}

var chip_values = [

{ data: { id: 93, canonical: 1, tag_caption: "Virginia", canonical_caption: "" }, caption: "Virginia" },

{ data: { id: 51, canonical: 1, tag_caption: "New Mexico", canonical_caption: "" }, caption: "New Mexico" },

{ data: { id: 55, canonical: 1, tag_caption: "North Carolina", canonical_caption: "" }, caption: "North Carolina"}

];

var cb = new diesel.ctl.chipbox ();

cb.set ({height: 120, width: 400});

cb.addListener ("newValueEntered", on_cb_newValueEntered);

cb.addListener ("valueSelected", on_cb_valueSelected);

console.log ("loading cb suggestions...");

load_cb_suggestions ();

// Document is the application root

var doc = this.getRoot ();

// Add button to document at fixed coordinates

doc.add (cb, { left: 50, top: 50 });

var b = new qx.ui.form.Button ("load chips");

b.addListener ('execute', function () {

cb.setChips (chip_values);

});

doc.add (b, { left: 50, top: 180 });

qooxdoo “chips” UI component

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