import * as React from 'react';

interface MultiselectProps extends React.Props<MultiselectClass> {
    /**
     * The current values of the Multiselect. The value should can null, or an array of
     * valueField values, or an array of objects (such as a few items in the data array)
     */
    value?: any[];
    /**
     * Default Value.
     */
    defaultValue?: any[];
    /**
     * Change event Handler that is called when the value is changed. The handler is called with
     * an array of values.
     */
    onChange?: (values: any[]) => void;
    /**
     * This handler fires when an item has been selected from the list. It fires before the
     * onChange handler, and fires regardless of whether the value has actually changed
     */
    onSelect?: (value: any) => void;
    /**
     * This handler fires when the user chooses to create a new tag, not in the data list. It is
     * up to the widget parent to implement creation logic, a common implementation is shown
     * below, where the new tag is selected and added to the data list.
     */
    onCreate?: (searchTerm: string) => void;
    /**
     * Provide an array of possible values for the Multiselect. If an array of objects is
     * provided you should use the valueField and textField props, to specify which object
     * properties comprise the value field (such as an id) and the field used to label the item.
     */
    data?: any[];
    /**
     * A dataItem field name for uniquely identifying items in the data list. A valueField is
     * required when the value prop is not itself a dataItem. A valueField is useful when
     * specifying the selected item, by its id instead of using the model as the value.
     * When a valueField is not provided, the Multiselect will use strict equality checks (===)
     * to locate the value in the data list.
     */
    valueField?: string;
    /**
     * Specify which data item field to display in the Multiselect and selected item. The
     * textField prop may also also used as to find an item in the list as you type. Providing
     * an accessor function allows for computed text values.
     */
    textField?: string | ((dataItem: any) => string);
    /**
     * This component is used to render each selected item. The default component renders the
     * text of the selected item (specified by textfield).
     */
    tagComponent?: React.ReactType;
    /**
     * This component is used to render each possible item in the list. The default component
     * renders the text of the selected item (specified by textfield).
     */
    itemComponent?: React.ReactType;
    /**
     * Determines how to group the Multiselect values. Providing a string will group the data
     * array by that property. You can also provide a 'function' which should return the group
     * value.
     */
    groupBy?: string | ((dataItem: any) => any);
    /**
     * This component is used to render each option group, when groupBy is specified. By default
     * the groupBy value will be used.
     */
    groupComponent?: React.ReactType;
    /**
     * The same as an input placeholder, only works in browsers that support the placeholder
     * attribute for inputs
     */
    placeholder?: string;
    /**
     * The string value of the current search being typed into the Multiselect. When unset
     * (undefined) the Multiselect will handle the filtering internally. The defaultSearchTerm
     * prop can be used to set an initialization value for uncontrolled widgets.
     */
    searchTerm?: string;
    /**
     * Called when the value of the text box changes either from typing or a pasted value.
     * onSearch should be used when the searchTerm prop is set.
     */
    onSearch?: (searchTerm: string) => void;
    /**
     * Whether or not the Multiselect is open. When unset (undefined) the Multiselect will
     * handle the opening and closing internally. The defaultOpen prop can be used to set an
     * initialization value for uncontrolled widgets.
     */
    open?: boolean;
    /**
     * Called when the Multiselect is about to open or close. onToggle should be used when the
     * open prop is set otherwise the widget will never open or close.
     */
    onToggle?: (isOpen: boolean) => void;
    /**
     * Specify a filtering method used to reduce the items in the dropdown as you type. There
     * are a few built-in filtering methods that can be specified by passing the String name.
     * You can explicitly opt out of filtering by setting filter to false. To handle custom
     * filtering techniques provide a function that returns true or false for each passed in
     * item (analogous to the array.filter builtin)
     * @enum false "startsWith" "endsWith" "contains" function(String item)
     * @default startsWith
     */
    filter?: boolean | "startsWith" | "endsWith" | "contains" | ((dataItem: any, searchTerm: string) => boolean);
    /**
     * Use in conjunction with the filter prop. Filter the list without regard for case. This
     * only applies to non function values for filter.
     * @default false
     */
    caseSensitive?: boolean;
    /**
     * Use in conjunction with the filter prop. Start filtering the list only after the value
     * has reached a minimum length.
     * @default 1
     */
    minLength?: number;
    /**
     * mark whether the widget is in a busy or loading state. If true the widget will display a
     * spinner gif, useful when loading data via an ajax call.
     * @default false
     */
    busy?: boolean;
    /**
     * The speed, in milliseconds, of the dropdown animation.
     * @default 250
     */
    duration?: number;
    /**
     * Disable the widget, If an Array of values is passed in only the tags specified will be
     * disabled.
     */
    disabled?: boolean | any[];
    /**
     * Place the widget in a readonly mode, If an Array of values is passed in only the tags
     * specified will be readonly.
     */
    readOnly?: boolean | any[];
    /**
     * Mark whether the widget should render right-to-left. This property can also be implicitly
     * passed to the widget through a childContext prop (isRtl) this allows higher level
     * application components to specify the direction.
     * @default false
     */
    isRtl?: boolean;
    /**
     * Object hash containing display text and/or text for screen readers. Use the messages
     * object to localize widget text and increase accessibility.
     */
    messages?: MultiselectMessages;
}

interface MultiselectMessages {
    /**
     * The text label for creating new tags.
     * @default "(create new tag)"
     */
    createNew?: string | ((props: MultiselectProps) => string);
    /**
     * Text to display when the data prop array is empty.
     * @default "There are no items in this list"
     */
    emptyList?: string | ((props: MultiselectProps) => string);
    /**
     * Text to display when the the current filter does not return any results.
     * @default "The filter returned no results"
     */
    emptyFilter?: string | ((props: MultiselectProps) => string);
}

interface Multiselect extends React.ReactElement<MultiselectProps> {}
interface MultiselectClass extends React.ComponentClass<MultiselectProps> {}
declare var Multiselect: MultiselectClass;
export = Multiselect;