egroupware/api/js/etemplate/et2_widget_ajaxSelect.js

/**

 * EGroupware eTemplate2 - JS Ajax select / auto complete object
 *
 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
 * @package etemplate
 * @subpackage api
 * @link https://www.egroupware.org
 * @author Nathan Gray
 * @copyright Nathan Gray 2012
 */
/*egw:uses
    /vendor/bower-asset/jquery/dist/jquery.js;
    /vendor/bower-asset/jquery-ui/jquery-ui.js;
    et2_core_inputWidget;
    et2_core_valueWidget;
*/
import { et2_register_widget } from "./et2_core_widget";
import { et2_inputWidget } from "./et2_core_inputWidget";
import { ClassWithAttributes } from "./et2_core_inheritance";
import { et2_valueWidget } from "./et2_core_valueWidget";
import { et2_selectbox } from "./et2_widget_selectbox";
/**
 * Using AJAX, this widget allows a type-ahead find similar to a ComboBox, where as the user enters information,
 * a drop-down box is populated with the n closest matches.  If the user clicks on an item in the drop-down, that
 * value is selected.
 * n is the maximum number of results set in the user's preferences.
 * The user is restricted to selecting values in the list.
 * This widget can get data from any function that can provide data to a nextmatch widget.
 * @augments et2_inputWidget
 */
export class et2_ajaxSelect extends et2_inputWidget {
    /**
     * Constructor
     *
     * @memberOf et2_ajaxSelect
     */
    constructor(_parent, _attrs, _child) {
        // Call the inherited constructor
        super(_parent, _attrs, ClassWithAttributes.extendAttributes(et2_ajaxSelect._attributes, _child || {}));
        this.input = null;
        if (typeof _attrs.get_rows == 'string') {
            _attrs.get_rows = this.egw().link('/index.php', {
                menuaction: this.options.get_rows
            });
        }
        this.createInputWidget();
        this.input = null;
        this.createInputWidget();
    }
    createInputWidget() {
        this.input = jQuery(document.createElement("input"));
        this.input.addClass("et2_textbox");
        this.setDOMNode(this.input[0]);
        let widget = this;
        this.input.autocomplete({
            delay: 100,
            source: this.options.get_rows ?
                this.options.get_rows :
                et2_selectbox.find_select_options(this, this.options.values),
            select: function (event, ui) {
                widget.value = ui.item[widget.options.id_field];
                if (widget.options.get_title) {
                    if (typeof widget.options.get_title == 'function') {
                        widget.input.val(widget.options.get_title.call(widget.value));
                    }
                    else if (typeof widget.options.get_title == 'string') {
                        // TODO: Server side callback
                    }
                }
                else {
                    widget.input.val(ui.item.label);
                }
                // Prevent default action of setting field to the value
                return false;
            }
        });
    }
    getValue() {
        if (this.options.blur && this.input.val() == this.options.blur)
            return "";
        return this.value;
    }
    set_value(_value) {
        this.value = _value;
        if (this.input.autocomplete('instance')) {
            let source = this.input.autocomplete('option', 'source');
            if (typeof source == 'object') {
                for (let i in source) {
                    if (typeof source[i].value != 'undefined' && typeof source[i].label != 'undefined' && source[i].value === _value) {
                        this.input.val(source[i].label);
                    }
                    else if (typeof source[i] == 'string') {
                        this.input.val(source[_value]);
                        break;
                    }
                }
            }
            else if (typeof source == 'function') {
                // TODO
            }
        }
    }
    set_blur(_value) {
        if (_value) {
            this.input.attr("placeholder", _value + ""); // HTML5
            if (!this.input[0]["placeholder"]) {
                // Not HTML5
                if (this.input.val() == "")
                    this.input.val(this.options.blur);
                this.input.focus(this, function (e) {
                    if (e.data.input.val() == e.data.options.blur)
                        e.data.input.val("");
                }).blur(this, function (e) {
                    if (e.data.input.val() == "")
                        e.data.input.val(e.data.options.blur);
                });
            }
        }
        else {
            this.input.removeAttr("placeholder");
        }
    }
}
et2_ajaxSelect._attributes = {
    'get_rows': {
        "name": "Data source",
        "type": "any",
        "default": "",
        "description": "Function to get search results, either a javascript function or server-side."
    },
    'get_title': {
        "name": "Title function",
        "type": "any",
        "default": "",
        "description": "Function to get title for selected entry.  Used when closed, and if no template is given."
    },
    'id_field': {
        "name": "Result ID field",
        "type": "string",
        "default": "value",
        "description": "Which key in result sub-array to look for row ID.  If omitted, the key for the row will be used."
    },
    'template': {
        "name": "Row template",
        "type": "string",
        "default": "",
        "description": "ID of the template to use to display rows.  If omitted, title will be shown for each result."
    },
    'filter': {
        "name": "Filter",
        "type": "string",
        "default": "",
        "description": "Apply filter to search results.  Same as nextmatch."
    },
    'filter2': {
        "name": "Filter 2",
        "type": "string",
        "default": "",
        "description": "Apply filter to search results.  Same as nextmatch."
    },
    'link': {
        "name": "Read only link",
        "type": "boolean",
        "default": "true",
        "description": "If readonly, widget will be text.  If link is set, widget will be a link."
    },
    // Pass by code only
    'values': {
        "name": "Values",
        "type": "any",
        "default": {},
        "description": "Specify the available options.  Use this, or Data source."
    }
};
et2_register_widget(et2_ajaxSelect, ["ajax_select"]);
/**
* et2_textbox_ro is the dummy readonly implementation of the textbox.
* @augments et2_valueWidget
*/
export class et2_ajaxSelect_ro extends et2_valueWidget {
    /**
     * Constructor
     *
     * @memberOf et2_ajaxSelect_ro
     */
    constructor(_parent, _attrs, _child) {
        // Call the inherited constructor
        super(_parent, _attrs, ClassWithAttributes.extendAttributes(et2_ajaxSelect_ro._attributes, _child || {}));
        this.value = "";
        this.span = jQuery(document.createElement("span"));
        this.setDOMNode(this.span[0]);
    }
    set_value(_value) {
        this.value = _value;
        if (!_value)
            _value = "";
        this.span.text(_value);
    }
    /**
     * Code for implementing et2_IDetachedDOM
     */
    getDetachedAttributes(_attrs) {
        _attrs.push("value");
    }
    getDetachedNodes() {
        return [this.span[0]];
    }
    setDetachedAttributes(_nodes, _values) {
        this.span = jQuery(_nodes[0]);
        if (typeof _values["value"] != 'undefined') {
            this.set_value(_values["value"]);
        }
    }
}
/**
 * Ignore all more advanced attributes.
 */
et2_ajaxSelect_ro._attributes = {
    "multiline": {
        "ignore": true
    }
};
et2_register_widget(et2_ajaxSelect_ro, ["ajax_select_ro"]);
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