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Select: use bind sparingly #172

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May 9, 2015
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60 changes: 34 additions & 26 deletions src/Select.js
Original file line number Diff line number Diff line change
Expand Up @@ -98,31 +98,32 @@ var Select = React.createClass({
this.autoloadAsyncOptions();
}

var self = this;
this._closeMenuIfClickedOutside = function(event) {
if (!this.state.isOpen) {
if (!self.state.isOpen) {
return;
}
var menuElem = this.refs.selectMenuContainer.getDOMNode();
var controlElem = this.refs.control.getDOMNode();
var menuElem = self.refs.selectMenuContainer.getDOMNode();
var controlElem = self.refs.control.getDOMNode();

var eventOccuredOutsideMenu = this.clickedOutsideElement(menuElem, event);
var eventOccuredOutsideControl = this.clickedOutsideElement(controlElem, event);
var eventOccuredOutsideMenu = self.clickedOutsideElement(menuElem, event);
var eventOccuredOutsideControl = self.clickedOutsideElement(controlElem, event);

// Hide dropdown menu if click occurred outside of menu
if (eventOccuredOutsideMenu && eventOccuredOutsideControl) {
this.setState({
self.setState({
isOpen: false
}, this._unbindCloseMenuIfClickedOutside);
}, self._unbindCloseMenuIfClickedOutside);
}
}.bind(this);
};

this._bindCloseMenuIfClickedOutside = (function() {
document.addEventListener('click', this._closeMenuIfClickedOutside);
}).bind(this);
this._bindCloseMenuIfClickedOutside = function() {
document.addEventListener('click', self._closeMenuIfClickedOutside);
};

this._unbindCloseMenuIfClickedOutside = (function() {
document.removeEventListener('click', this._closeMenuIfClickedOutside);
}).bind(this);
this._unbindCloseMenuIfClickedOutside = function() {
document.removeEventListener('click', self._closeMenuIfClickedOutside);
};
},

componentWillUnmount: function() {
Expand All @@ -147,12 +148,15 @@ var Select = React.createClass({
},

componentDidUpdate: function() {
var self = this;

if (!this.props.disabled && this._focusAfterUpdate) {
clearTimeout(this._blurTimeout);

this._focusTimeout = setTimeout(function() {
this.getInputNode().focus();
this._focusAfterUpdate = false;
}.bind(this), 50);
self.getInputNode().focus();
self._focusAfterUpdate = false;
}, 50);
}

if (this._focusedOptionReveal) {
Expand Down Expand Up @@ -320,12 +324,15 @@ var Select = React.createClass({
},

handleInputBlur: function(event) {
var self = this;

this._blurTimeout = setTimeout(function() {
if (this._focusAfterUpdate) return;
this.setState({
if (self._focusAfterUpdate) return;

self.setState({
isFocused: false
});
}.bind(this), 50);
}, 50);

if (this.props.onBlur) {
this.props.onBlur(event);
Expand Down Expand Up @@ -445,32 +452,33 @@ var Select = React.createClass({
}
}

var self = this;
this.props.asyncOptions(input, function(err, data) {

if (err) throw err;

this._optionsCache[input] = data;
self._optionsCache[input] = data;

if (thisRequestId !== this._currentRequestId) {
if (thisRequestId !== self._currentRequestId) {
return;
}
var filteredOptions = this.filterOptions(data.options);
var filteredOptions = self.filterOptions(data.options);

var newState = {
options: data.options,
filteredOptions: filteredOptions,
focusedOption: this._getNewFocusedOption(filteredOptions)
focusedOption: self._getNewFocusedOption(filteredOptions)
};
for (var key in state) {
if (state.hasOwnProperty(key)) {
newState[key] = state[key];
}
}
this.setState(newState);
self.setState(newState);

if(callback) callback({});

}.bind(this));
});
},

filterOptions: function(options, values) {
Expand Down