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index.js
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index.js
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//
// react-dropdown-input
// Displays a ReactBootstrap.Input element
// with a ReactBootstrap.DropdownMenu of possible options.
//
"use strict";
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
var React = require("react/addons");
var ReactBootstrap = require("react-bootstrap");
var joinClasses = require("react/lib/joinClasses");
var cx = require("classnames");
var BootstrapMixin = ReactBootstrap.BootstrapMixin;
var DropdownStateMixin = ReactBootstrap.DropdownStateMixin;
var DropdownMenu = ReactBootstrap.DropdownMenu;
var Input = ReactBootstrap.Input;
var MenuItem = ReactBootstrap.MenuItem;
var defaultMaxText = "+# more not shown";
var defaultFilter = function defaultFilter(filterText, optionName) {
// also optionIndex as third arg
return optionName.toLowerCase().indexOf(filterText.toLowerCase()) >= 0;
};
var genLength = function genLength(list) {
// deal with both regular arrays and immutablejs objects, which have .count() instead of length
return typeof list.count !== "undefined" ? list.count() : list.length;
};
var genGet = function genGet(list, i) {
// deal with both regular arrays and immutablejs objects, which have list.get(i) instead of list[i]
return typeof list.get !== "undefined" ? list.get(i) : list[i];
};
var caseInsensIndexOf = function caseInsensIndexOf(list, str) {
var lowerList = list.map(function (item) {
return item.toLowerCase();
});
return lowerList.indexOf(str.toLowerCase());
};
var DropdownInput = React.createClass({
displayName: "DropdownInput",
mixins: [BootstrapMixin, DropdownStateMixin],
propTypes: {
pullRight: React.PropTypes.bool,
dropup: React.PropTypes.bool,
defaultValue: React.PropTypes.string,
menuClassName: React.PropTypes.string,
max: React.PropTypes.number,
maxText: React.PropTypes.string,
onChange: React.PropTypes.func,
onSelect: React.PropTypes.func,
navItem: React.PropTypes.bool,
options: React.PropTypes.oneOfType([React.PropTypes.object, React.PropTypes.array]).isRequired,
filter: React.PropTypes.func,
// the rest are to make eslint happy
id: React.PropTypes.string,
className: React.PropTypes.string,
bsSize: React.PropTypes.string
},
getInitialState: function getInitialState() {
return {
value: this.props.defaultValue || "",
activeIndex: -1
};
},
filteredOptions: function filteredOptions() {
var filter = this.props.filter || defaultFilter;
return this.props.options.filter(filter.bind(undefined, this.state.value));
},
cappedLength: function cappedLength(options) {
var total = genLength(options);
if (total > this.props.max) {
// if it exceeded the max, we took an extra one off
total = this.props.max - 1;
}
return total;
},
render: function render() {
var classes = {
dropdown: true,
open: this.state.open,
dropup: this.props.dropup
};
// you can provide a filter prop, which is a function(filterText, optionName, optionIndex) which should
// return true to show option with the given name and index, given the input filterText.
var filteredOptions = this.filteredOptions();
var numFiltered = genLength(filteredOptions);
var maxMenuItem = null;
var maxText = typeof this.props.maxText === "undefined" ? defaultMaxText : this.props.maxText;
if (this.props.max && numFiltered > this.props.max) {
// take an extra one off, to leave space for the maxText
filteredOptions = filteredOptions.slice(0, this.props.max - 1);
maxText = maxText.replace("#", numFiltered - this.props.max + 1);
maxMenuItem = this.renderAsMenuItem(maxText, this.props.max, null, true);
}
var dropdown = null;
if (numFiltered > 0) {
dropdown = React.createElement(
DropdownMenu,
{
className: this.props.menuClassName,
ref: "menu",
"aria-labelledby": this.props.id,
pullRight: this.props.pullRight,
key: 1,
onSelect: null },
filteredOptions.map(this.renderAsMenuItem),
maxMenuItem
);
}
return React.createElement(
"div",
{ className: joinClasses(this.props.className, cx(classes)) },
React.createElement(Input, _extends({}, this.props, {
menuClassName: null,
options: null,
type: "text",
bsSize: this.props.bsSize,
ref: "dropdownInput",
onClick: this.handleDropdownClick,
key: 0,
navDropdown: this.props.navItem,
navItem: null,
pullRight: null,
onSelect: null,
onChange: this.handleInputChange,
onKeyDown: this.handleKeyDown,
dropup: null,
value: this.state.value })),
dropdown
);
},
renderAsMenuItem: function renderAsMenuItem(item, index, options, disabled) {
var start = item.toLowerCase().indexOf(this.state.value.toLowerCase()),
end = start + this.state.value.length,
part1 = item.slice(0, start),
part2 = item.slice(start, end),
part3 = item.slice(end);
var classes = cx({ active: this.state.activeIndex === index, disabled: disabled === true });
if (disabled) {
// don't highlight parts of disabled items, eg. the maxText
part1 = item;
part2 = null;
part3 = null;
}
return React.createElement(
MenuItem,
{
key: index,
onSelect: this.handleOptionSelect.bind(this, index, item),
className: classes,
onMouseEnter: this.handleMouseEnter.bind(this, index) },
part1,
React.createElement(
"b",
null,
part2
),
part3
);
},
handleInputChange: function handleInputChange(e) {
// the user changed the input text
this.setState({ value: e.target.value, activeIndex: -1 });
this.setDropdownState(true);
// fire the supplied onChange event.
this.sendChange({ value: e.target.value });
},
handleKeyDown: function handleKeyDown(e) {
// catch arrow keys and the Enter key
var filteredOptions = this.filteredOptions();
var numOptions = this.cappedLength(filteredOptions);
var newName;
switch (e.keyCode) {
case 38:
// up arrow
if (this.state.activeIndex > 0) {
this.setState({ activeIndex: this.state.activeIndex - 1 });
} else {
this.setState({ activeIndex: numOptions - 1 });
}
break;
case 40:
// down arrow
this.setState({ activeIndex: (this.state.activeIndex + 1) % numOptions });
break;
case 13:
// enter
var newIndex = caseInsensIndexOf(this.props.options, this.state.value); // may need this
if (this.state.open) {
e.preventDefault();
}
if (this.state.activeIndex >= 0 && this.state.activeIndex < numOptions) {
newIndex = this.state.activeIndex;
newName = genGet(filteredOptions, this.state.activeIndex);
this.setDropdownState(false);
} else if (this.state.activeIndex === -1 && newIndex >= 0) {
newName = genGet(this.props.options, newIndex);
this.setDropdownState(false);
} else {
newIndex = this.state.activeIndex;
newName = this.state.value;
}
this.sendSelect({ value: newName, index: newIndex });
this.sendChange({ value: newName });
this.setState({ value: newName, activeIndex: -1 });
break;
}
},
handleMouseEnter: function handleMouseEnter(index) {
// when the mouse enters a dropdown menu item, set the active item to the item
this.setState({ activeIndex: index });
},
handleDropdownClick: function handleDropdownClick(e) {
e.preventDefault();
this.setDropdownState(!this.state.open);
},
handleOptionSelect: function handleOptionSelect(key, name) {
// the user clicked on a dropdown menu item
this.setDropdownState(false);
this.sendSelect({ value: name, index: this.state.activeIndex });
this.sendChange({ value: name });
this.setState({ value: name, activeIndex: -1 });
},
sendChange: function sendChange(e) {
if (this.props.onChange) {
this.props.onChange(e);
}
},
sendSelect: function sendSelect(e) {
if (this.props.onSelect) {
this.props.onSelect(e);
}
}
});
module.exports = DropdownInput;