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jquery.geocodify.js
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(function( $ ){
$.fn.geocodify = function(options) {
var settings = {
'width' : 400,
'height' : 27,
'fontSize': '16px',
'buttonValue': 'GO',
'regionBias': null,
'viewportBias': null,
'onSelect': function(ele) { alert('Jump to: ' + ele.formatted_address )},
'minimumCharacters': 5,
'prepSearchString': null,
'filterResults': null,
'errorHandler': null,
'initialText': null,
'noResultsText': "No results found. Please refine your search.",
'acceptableAddressTypes': [
'street_address',
'route',
'intersection',
'political',
'country',
'administrative_area_level_1',
'administrative_area_level_2',
'administrative_area_level_3 ',
'colloquial_area',
'locality',
'sublocality',
'neighborhood',
'premise',
'subpremise',
'postal_code',
'natural_feature',
'airport',
'park',
'point_of_interest',
'post_box',
'street_number',
'floor',
'room'
],
'keyCodes' : {
UP: 38,
DOWN: 40,
DEL: 46,
TAB: 9,
RETURN: 13,
ESC: 27,
COMMA: 188,
PAGEUP: 33,
PAGEDOWN: 34,
BACKSPACE: 8
}
};
return this.each(function() {
var $this = $(this);
if ( options ) {
$.extend( settings, options );
}
// Clear out any existing stuff inside the form and set its style
$this
.empty()
.css({
'position': 'relative',
'margin': 0,
'padding': 0,
'width': settings.width,
'height': settings.height,
'font-size': settings.fontSize,
'z-index': 9001
});
document.getElementById($this.attr("id")).setAttribute("autocomplete", "off");
// Add a text input
var inputId = $this.attr("id") + "-input";
$('<input>')
.attr({type: 'text', id: inputId})
.css({
'padding': '0',
'margin': 0,
'position': 'absolute',
'top': 0,
'left': 0,
'width': settings.width,
'height': settings.height,
'outline-style': 'none',
'outline-width': 'initial',
'outline-color': 'initial',
'line-height': settings.fontSize,
'font-size': settings.fontSize,
"border": "1px solid #9C9C9C"
})
.addClass("geocodifyInput")
.appendTo($this);
document.getElementById(inputId).setAttribute("autocomplete", "off");
var input = $("#" + inputId);
// Fill in initialText, if it is specified
if (settings.initialText) {
input.val(settings.initialText);
input.css("color", "#9C9C9C");
input.focus(function() {
if (input.val() == settings.initialText) {
input.val("");
input.css("color", "black");
}
});
}
if (settings.buttonValue) {
// Add the submit button
var buttonId = $this.attr("id") + "-button";
$('<input>')
.attr({type: 'button', id: buttonId,
value: settings.buttonValue})
.css({
'position': 'absolute',
'top': 0,
'left': settings.width + 10,
'padding': '2px',
'margin': 0,
'font-size': "90%"
})
.addClass("geocodifyButton")
.appendTo($this);
var button = $("#" + buttonId);
}
// Add the close box
var closeId = $this.attr("id") + "-close";
$("<div>")
.attr({id: closeId})
.hide()
.css({
'cursor': 'pointer',
'position': 'absolute',
'right': "5px",
'top': "5px",
'height': input.height() + 12,
'color': '#2262CC',
'font-weight': 'bold',
'font-family': 'Arial, sans-serif'
})
.addClass("geocodifyClose")
.html("×")
.appendTo($this);
var close = $("#" + closeId);
// Add the dropdown box
var dropdownId = $this.attr("id") + "-dropdown";
$("<div>")
.attr({id: dropdownId})
.css({
'position': 'absolute',
'top': input.height() + 2,
'left': 0,
'border': '1px solid #CCC',
'width': settings.width - 2,
'z-index': 8001
})
.addClass("geocodifyDropdown")
.hide()
.appendTo($this);
var dropdown = $("#" + dropdownId);
// Define what will happen when the form is reset
$this.reset = function () {
dropdown.empty();
dropdown.hide();
close.hide();
};
// Create the bizness for how the geocoder work
$this.previousSearch = null;
$this.searchCache = {};
$this.google = new google.maps.Geocoder();
$this.fetch = function(query, force) {
if (query === $this.previousSearch && !(force)) {
return false;
};
if (query === settings.initialText) {
return false;
};
$this.previousSearch = query;
var qLength = query.length;
if (qLength < settings.minimumCharacters && !(force)) {
dropdown.html("");
dropdown.hide();
close.hide();
return false;
}
if (settings.prepSearchString) {
query = settings.prepSearchString(query);
}
var params = { 'address': query };
if (settings.regionBias) {
params['region'] = settings.regionBias;
};
if (settings.viewportBias) {
params['bounds'] = settings.viewportBias;
};
this.google.geocode(params, $this.onGeocode(force));
};
// The callback that runs after the geocoder returns
$this.onGeocode = function(force) {
return function(results, status) {
$this.reset();
// Handle errors
if (status != google.maps.GeocoderStatus.OK) {
if (settings.errorHandler) {
settings.errorHandler(results, status);
return false;
};
};
// Loop through the results and filter out precision
// levels we will not accept.
var keep = new Array();
$.each(results, function(i, val) {
$.each(val.types, function(ii, type) {
if (new RegExp(type).test(settings.acceptableAddressTypes.join("|"))) {
keep.push(val);
return false;
}
});
});
// Further filter the results if a function has been provided
if (settings.filterResults) {
keep = settings.filterResults(keep);
};
var count = keep.length;
if (count === 0) {
var ul = $("<ul>").css({'margin': 0, 'padding': 0, 'background-color': 'white'});
var li = $("<li>")
.html(settings.noResultsText)
.css({
'cursor': 'pointer',
'margin-left': 0,
'padding': '5px 0 5px 8px',
'list-style-type': 'none',
'text-align': 'left'
})
.appendTo(ul)
ul.appendTo(dropdown);
dropdown.show();
$("li", dropdown).css("cursor", "default");
close.show();
close.click($this.reset);
} else if (count === 1 && force) {
settings.onSelect(results[0]);
$this.reset();
$this.previousSearch = results[0].formatted_address;
input.val(results[0].formatted_address);
} else {
var ul = $("<ul>").css({'margin': 0, 'padding': 0, 'background-color': 'white'});
$.each(keep, function(i, val) {
$('<li>')
.html(val.formatted_address)
.css({
'cursor': 'pointer',
'margin-left': 0,
'padding': '5px 0 5px 8px',
'list-style-type': 'none',
'font-size': settings.fontSize,
'text-align': 'left'
})
.click(function(){
settings.onSelect(val);
$this.reset();
$this.previousSearch = val.formatted_address;
input.val(val.formatted_address);
})
.hover(
function() {
$(this).css({'background-color': '#EEE', 'cursor': 'pointer'});
},
function() {
$(this).css({'background-color': 'white', 'cursor': 'auto'});
})
.appendTo(ul);
});
ul.appendTo(dropdown);
dropdown.show();
close.show();
close.click($this.reset)
}
}
};
// Bind our geocoding operation to the form
setInterval(function(){$this.fetch(input.val(), false)}, 250);
$this.submit(function(){return false;});
if (button) {
button.click(function(){$this.fetch(input.val(), true);return false;});
}
// Bind key up and down events
$this.bind(($.browser.opera ? "keypress" : "keydown"), function(event) {
switch(event.keyCode) {
case settings.keyCodes.UP:
var resultList = $("li", dropdown);
var selectedIndex = 0;
$.each(resultList, function(i, li) {
if ( $(li).hasClass("selected") ) {
selectedIndex = i;
$(li)
.removeClass("selected")
.css({'background-color': 'white'});
};
});
if (selectedIndex -1 < 0) {
break;
}
$(resultList[selectedIndex-1])
.addClass("selected")
.css({'background-color': '#EEE'});
break;
case settings.keyCodes.DOWN:
var resultList = $("li", dropdown);
var selectedIndex = -1;
$.each(resultList, function(i, li) {
if ( $(li).hasClass("selected") ) {
selectedIndex = i;
$(li).removeClass("selected")
.css({'background-color': 'white'});
};
});
if (selectedIndex -1 >= resultList.length) {
break;
}
$(resultList[selectedIndex+1])
.addClass("selected")
.css({'background-color': '#EEE'});
break;
case settings.keyCodes.RETURN:
var resultList = $("li.selected", dropdown);
if (resultList) {
resultList.click();
} else {
$this.fetch(input.val(), true);
}
break;
default:
break;
};
});
});
};
})( jQuery );