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Meio.Autocomplete.js
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/*
---
description: Port of bgiframe plugin for mootools
authors:
- Fábio Miranda Costa
requires:
- Core/Class.Extras
license: MIT-style license Original plugin copyright Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net) Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses. Version 2.1.1
provides: [BGIFrame]
...
*/
(function(global, $) {
var isIE6 = Browser.ie6; // better compression and faster
var BgIframe = new Class({
Implements: Options,
options: {
top : 'auto',
left : 'auto',
width : 'auto',
height : 'auto',
opacity : true,
src : 'javascript:false;'
},
initialize: function(element, options) {
if (!isIE6) return;
this.setOptions(options);
this.element = $(element);
var firstChild = this.element.getFirst();
if (!(firstChild && firstChild.hasClass('bgiframe'))) {
this.element.grab(document.createElement(this.render()), 'top');
}
},
toPx: function(n) {
return isFinite(n) ? n + 'px' : n;
},
render: function() {
var options = this.options;
return ['<iframe class="bgiframe" frameborder="0" tabindex="-1" src="', options.src, '" ',
'style="display:block;position:absolute;z-index:-1;',
(options.opacity !== false ? 'filter:alpha(opacity=\'0\');' : ''),
'top:', (options.top === 'auto' ? 'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')' : this.toPx(options.top)), ';',
'left:', (options.left === 'auto' ? 'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')' : this.toPx(options.left)), ';',
'width:', (options.width === 'auto' ? 'expression(this.parentNode.offsetWidth+\'px\')' : this.toPx(options.width)), ';',
'height:', (options.height === 'auto' ? 'expression(this.parentNode.offsetHeight+\'px\')' : this.toPx(options.height)), ';',
'"/>'].join('');
}
});
Element.implement('bgiframe', function(options) {
if (isIE6) new BgIframe(this, options);
return this;
});
})(this, document.id || this.$);
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Core/Class.Extras
- Core/Element.Event
- Core/Element.Style
- More/Element.Forms
license: MIT-style license
provides: [Meio]
...
*/
(function(global, $) {
var browser = Browser; // better compression and faster
// Custom Events
// thanks Jan Kassens
Object.append(Element.NativeEvents, {
'paste': 2, 'input': 2
});
Element.Events.paste = {
base : (browser.opera || (browser.firefox && browser.version < 3)) ? 'input' : 'paste',
condition: function(e) {
this.fireEvent('paste', e, 1);
return false;
}
};
// the key event that repeats
Element.Events.keyrepeat = {
base : (browser.firefox || browser.opera) ? 'keypress' : 'keydown',
condition: Function.from(true)
};
// Meio namespace
global.Meio = global.Meio || {};
}(this, document.id || this.$));
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Meio.Base
license: MIT-style license
provides: [Meio.Widget]
...
*/
Meio.Widget = new Class({
initialize: function() {
this.elements = {};
},
addElement: function(name, obj) {
this.elements[name] = obj;
},
addEventToElement: function(name, eventName, event) {
this.elements[name].addEvent(eventName, event.bind(this));
},
addEventsToElement: function(name, events) {
for (var eventName in events) {
this.addEventToElement(name, eventName, events[eventName]);
}
},
attach: function() {
for (var element in this.elements) {
this.elements[element].attach();
}
},
detach: function() {
for (var element in this.elements) {
this.elements[element].detach();
}
},
destroy: function() {
for (var element in this.elements) {
if (this.elements[element]) {
this.elements[element].destroy();
}
}
}
});
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Meio.Base
license: MIT-style license
provides: [Meio.Element]
...
*/
(function(global, $) {
global.Meio.Element = new Class({
Implements: [Events],
initialize: function(node) {
this.setNode(node);
this.createBoundEvents();
this.attach();
},
setNode: function(node) {
this.node = node ? $(node) || $$(node)[0] : this.render();
},
createBoundEvents: function() {
this.bound = {};
this.boundEvents.each(function(evt) {
this.bound[evt] = function(e) {
this.fireEvent('before' + evt.capitalize(), e);
if (this[evt]) this[evt](e);
this.fireEvent(evt, e);
return true;
}.bind(this);
}, this);
},
attach: function() {
for (var e in this.bound) {
this.node.addEvent(e, this.bound[e]);
}
},
detach: function() {
for (var e in this.bound) {
this.node.removeEvent(e, this.bound[e]);
}
},
addClass: function(type) {
this.node.addClass(this.options.classes[type]);
},
removeClass: function(type) {
this.node.removeClass(this.options.classes[type]);
},
toElement: function() {
return this.node;
},
render: function() {}
});
}(this, document.id || this.$));
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Meio.Element
license: MIT-style license
provides: [Meio.Element.Field]
...
*/
(function(global, $) {
global.Meio.Element.Field = new Class({
Extends: global.Meio.Element,
Implements: [Options],
options: {
classes: {
loading: 'ma-loading',
selected: 'ma-selected'
}
},
initialize: function(field, options) {
this.keyPressControl = {};
this.boundEvents = ['paste', 'focus', 'blur', 'click', 'keyup', 'keyrepeat'];
if (Browser.ie6) this.boundEvents.push('keypress'); // ie6 doesnt fire keydown on enter
this.setOptions(options);
this.parent(field);
$(global).addEvent('unload', function() {
// if autocomplete is off when you reload the page the input value gets erased
if (this.node) $(this.node).set('autocomplete', 'on');
}.bind(this));
},
setNode: function(element) {
this.parent(element);
this.node.set('autocomplete', 'off');
},
// this let me get the value of the input on keydown and keypress
keyrepeat: function(e) {
clearInterval(this.keyrepeatTimer);
this.keyrepeatTimer = this._keyrepeat.delay(1, this, e);
},
_keyrepeat: function(e) {
this.fireEvent('delayedKeyrepeat', e);
},
destroy: function() {
this.detach();
this.node.removeAttribute('autocomplete');
},
// ie6 only, uglyness
// this fix the form being submited on the press of the enter key
keypress: function(e) {
if (e.key === 'enter') this.bound.keyrepeat(e);
}
});
}(this, document.id || this.$));
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Meio.Element
license: MIT-style license
provides: [Meio.Element.List]
...
*/
(function(global, $) {
global.Meio.Element.List = new Class({
Extends: global.Meio.Element,
Implements: [Options],
options: {
width: 'field', // you can pass any other value settable by set('width') to the list container
container: 'body',
classes: {
container: 'ma-container',
hover: 'ma-hover',
odd: 'ma-odd',
even: 'ma-even'
}
},
initialize: function(options) {
this.boundEvents = ['mousedown', 'mouseover'];
this.setOptions(options);
this.parent();
this.focusedItem = null;
},
applyMaxHeight: function(maxVisibleItems) {
var listChildren = this.list.childNodes;
var node = listChildren[maxVisibleItems - 1] || (listChildren.length ? listChildren[listChildren.length - 1] : null);
if (!node) return;
node = $(node);
// uggly hack to fix the height of the autocomplete list
for (var i = 2; i--;) this.node.setStyle('height', node.getCoordinates(this.list).bottom);
},
mouseover: function(e) {
var item = this.getItemFromEvent(e), hoverClass = this.options.classes.hover;
if (!item) return true;
if (this.focusedItem) this.focusedItem.removeClass(hoverClass);
item.addClass(hoverClass);
this.focusedItem = item;
this.fireEvent('focusItem', [this.focusedItem]);
},
mousedown: function(e) {
e.preventDefault();
this.shouldNotBlur = true;
if (!(this.focusedItem = this.getItemFromEvent(e))) {
e.dontHide = true;
return true;
}
this.focusedItem.removeClass(this.options.classes.hover);
},
focusItem: function(direction) {
var hoverClass = this.options.classes.hover, newFocusedItem;
if (this.focusedItem) {
if ((newFocusedItem = this.focusedItem[direction == 'up' ? 'getPrevious' : 'getNext']())) {
this.focusedItem.removeClass(hoverClass);
newFocusedItem.addClass(hoverClass);
this.focusedItem = newFocusedItem;
this.scrollFocusedItem(direction);
}
} else {
if ((newFocusedItem = this.list.getFirst())) {
newFocusedItem.addClass(hoverClass);
this.focusedItem = newFocusedItem;
}
}
},
scrollFocusedItem: function(direction) {
var focusedItemCoordinates = this.focusedItem.getCoordinates(this.list),
scrollTop = this.node.scrollTop;
if (direction == 'down') {
var delta = focusedItemCoordinates.bottom - this.node.getStyle('height').toInt();
if ((delta - scrollTop) > 0) {
this.node.scrollTop = delta;
}
} else {
var top = focusedItemCoordinates.top;
if (scrollTop && scrollTop > top) {
this.node.scrollTop = top;
}
}
},
getItemFromEvent: function(e) {
var target = e.target;
while (target && target.tagName.toLowerCase() != 'li') {
if (target === this.node) return null;
target = target.parentNode;
}
return $(target);
},
render: function() {
var node = new Element('div', {'class': this.options.classes.container});
if (node.bgiframe) node.bgiframe({top: 0, left: 0});
this.list = new Element('ul').inject(node);
$$(this.options.container)[0].grab(node);
return node;
},
positionNextTo: function(fieldNode) {
var width = this.options.width, listNode = this.node;
var elPosition = fieldNode.getCoordinates();
listNode.setStyle('width', width == 'field' ? fieldNode.getWidth().toInt() - listNode.getStyle('border-left-width').toInt() - listNode.getStyle('border-right-width').toInt() : width);
listNode.setPosition({x: elPosition.left, y: elPosition.bottom});
},
destroy: function() {
this.detach();
this.node.destroy(); // @ToDo to be save, we should not destroy it when list is shared
},
show: function() {
this.node.scrollTop = 0;
this.node.setStyle('visibility', 'visible');
this.showing = true;
},
hide: function() {
this.showing = false;
this.node.setStyle('visibility', 'hidden');
}
});
}(this, document.id || this.$));
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Meio.Widget
- Meio.Element.List
- Meio.Element.Field
license: MIT-style license
provides: [Meio.Autocomplete]
...
*/
(function(global, $) {
var Meio = global.Meio;
var keysThatDontChangeValueOnKeyUp = {
9: 1, // tab
16: 1, // shift
17: 1, // control
18: 1, // alt
224: 1, // command (meta onkeypress)
91: 1, // command (meta onkeydown)
37: 1, // left
38: 1, // up
39: 1, // right
40: 1 // down
};
var encode = function(str) {
return str.replace(/"/g, '"').replace(/'/g, ''');
};
Meio.Autocomplete = new Class({
Extends: Meio.Widget,
Implements: [Options, Events],
options: {
delay: 200,
minChars: 0,
cacheLength: 20,
selectOnTab: true,
autoFocus: false,
maxVisibleItems: 10,
cacheType: 'shared', // 'shared' or 'own'
preventDefaultOnSubmit: true, // Prevent default event on input submit while autocompletion is active
filter: {
/*
its posible to pass the filters directly or by passing a type and optionaly a path.
filter: function(text, data) {}
formatMatch: function(text, data, i) {}
formatItem: function(text, data) {}
or
type: 'startswith' or 'contains' // can be any defined on the Meio.Autocomplete.Filter object
path: 'a.b.c' // path to the text value on each object thats contained on the data array
*/
},
/*
onNoItemToList: function(elements) {},
onSelect: function(elements, value) {},
onDeselect: function(elements) {},
*/
fieldOptions: {}, // see Element options
listOptions: {}, // see List options
requestOptions: {}, // see DataRequest options
urlOptions: {} // see URL options
},
initialize: function(input, data, options, listInstance) {
this.parent();
this.setOptions(options);
this.active = 0;
this.filters = Meio.Autocomplete.Filter.get(this.options.filter);
this.addElement('list', listInstance || new Meio.Element.List(this.options.listOptions));
this.addListEvents();
this.addElement('field', new Meio.Element.Field(input, this.options.fieldOptions));
this.addFieldEvents();
this.addSelectEvents();
this.attach();
this.initCache();
this.initData(data);
},
addFieldEvents: function() {
this.addEventsToElement('field', {
'beforeKeyrepeat': function(e) {
this.active = 1;
var e_key = e.key, list = this.elements.list;
if ( (this.options.preventDefaultOnSubmit && e_key == 'enter' && list.showing) || e_key == 'up' || e_key == 'down' ) {
e.preventDefault();
} },
'delayedKeyrepeat': function(e) {
var e_key = e.key, field = this.elements.field;
field.keyPressControl[e_key] = true;
switch (e_key) {
case 'up': case 'down':
this.focusItem(e_key);
break;
case 'enter':
this.setInputValue();
break;
case 'tab':
if (this.options.selectOnTab) this.setInputValue();
field.keyPressControl[e_key] = false; // tab blurs the input so the keyup event wont happen at the same input you made a keydown
break;
case 'esc':
this.elements.list.hide();
break;
default:
this.setupList();
}
this.oldInputedText = field.node.get('value');
},
'keyup': function(e) {
var field = this.elements.field;
if (!keysThatDontChangeValueOnKeyUp[e.code]) {
if (!field.keyPressControl[e.key]) this.setupList();
field.keyPressControl[e.key] = false;
}
},
'focus': function() {
this.active = 1;
var list = this.elements.list;
list.focusedItem = null;
list.positionNextTo(this.elements.field.node);
},
'click': function() {
if (++this.active > 2 && !this.elements.list.showing) {
this.forceSetupList();
}
},
'blur': function(e) {
this.active = 0;
var list = this.elements.list;
if (list.shouldNotBlur) {
this.elements.field.node.setCaretPosition('end');
list.shouldNotBlur = false;
if (list.focusedItem) list.hide();
} else {
list.hide();
}
},
'paste': function() {
return this.setupList();
}
});
},
addListEvents: function() {
this.addEventsToElement('list', {
'mousedown': function(e) {
if (this.active && !e.dontHide) this.setInputValue();
}
});
},
update: function() {
var data = this.data, list = this.elements.list;
var cacheKey = data.getKey(), cached = this.cache.get(cacheKey), html;
if (cached) {
html = cached.html;
this.itemsData = cached.data;
} else {
data = data.get();
var itemsHtml = [], itemsData = [], classes = list.options.classes, text = this.inputedText;
var filter = this.filters.filter, formatMatch = this.filters.formatMatch, formatItem = this.filters.formatItem;
for (var row, i = 0, n = 0; (row = data[i++]);) if (filter.call(this, text, row)) {
itemsHtml.push(
'<li title="', encode(formatMatch.call(this, text, row)),
'" data-index="', n,
'" class="', (n%2 ? classes.even : classes.odd), '">',
formatItem.call(this, text, row, n),
'</li>'
);
itemsData.push(row);
n++;
}
html = itemsHtml.join('');
this.cache.set(cacheKey, {html: html, data: itemsData});
this.itemsData = itemsData;
}
list.focusedItem = null;
this.fireEvent('deselect', [this.elements]);
list.list.set('html', html);
if (this.options.maxVisibleItems) list.applyMaxHeight(this.options.maxVisibleItems);
},
setupList: function() {
this.inputedText = this.elements.field.node.get('value');
if (this.inputedText !== this.oldInputedText) {
this.forceSetupList(this.inputedText);
} else {
this.elements.list.hide();
}
return true;
},
forceSetupList: function(inputedText) {
inputedText = inputedText || this.elements.field.node.get('value');
if (inputedText.length >= this.options.minChars) {
clearInterval(this.prepareTimer);
this.prepareTimer = this.data.prepare.delay(this.options.delay, this.data, inputedText);
}
},
dataReady: function() {
this.update();
if (this.onUpdate) {
this.onUpdate();
this.onUpdate = null;
}
var list = this.elements.list;
if (list.list.get('html')) {
this.fireEvent('itemToList', [this.elements]);
if (this.options.autoFocus && list.list.getChildren().length === 1) this.focusItem();
if (this.active) list.show();
else if(this.options.autoFocus && list.list.getChildren().length === 1) this.setInputValue();
} else {
this.fireEvent('noItemToList', [this.elements]);
list.hide();
}
},
setInputValue: function() {
var list = this.elements.list;
if (list.focusedItem) {
var text = list.focusedItem.get('title');
this.elements.field.node.set('value', text);
var index = list.focusedItem.get('data-index');
this.fireEvent('select', [this.elements, this.itemsData[index], text, index]);
}
list.hide();
},
focusItem: function(direction) {
var list = this.elements.list;
if (list.showing) {
list.focusItem(direction);
} else {
this.forceSetupList();
this.onUpdate = function() { list.focusItem(direction); };
}
},
addSelectEvents: function() {
this.addEvents({
select: function(elements) {
elements.field.addClass('selected');
},
deselect: function(elements) {
elements.field.removeClass('selected');
}
});
},
initData: function(data) {
this.data = (typeOf(data) == 'string') ?
new Meio.Autocomplete.Data.Request(data, this.cache, this.elements.field, this.options.requestOptions, this.options.urlOptions) :
(typeOf(data) == 'function') ? new Meio.Autocomplete.Data.Source(data, this.cache, this.elements.field) :
new Meio.Autocomplete.Data(data, this.cache);
this.data.addEvent('ready', this.dataReady.bind(this));
},
initCache: function() {
var cacheLength = this.options.cacheLength;
if (this.options.cacheType == 'shared') {
this.cache = Meio.Autocomplete.Cache.instance;
this.cache.setMaxLength(cacheLength);
} else if (this.options.cacheType == 'own') { // 'own'
this.cache = new Meio.Autocomplete.Cache(cacheLength);
} else { // deactivates cache
this.cache = new Meio.Autocomplete.FakeCache();
}
},
refreshCache: function(cacheLength) {
this.cache.refresh();
this.cache.setMaxLength(cacheLength || this.options.cacheLength);
},
refreshAll: function(cacheLength, urlOptions) {
// TODO, do you really need to refresh the url? see a better way of doing this
this.refreshCache(cacheLength);
this.data.refreshKey(urlOptions);
}
});
}(this, document.id || this.$));
/*
---
description:
This is the same autocomplete class but it acts like a normal select element.
When you select an option from the autocomplete it will set the value of a given element (valueField)
with the return of the valueFilter.
if the syncAtInit option is set to true, it will synchonize the value of the autocomplete with the corresponding data
from the valueField's value.
to understand better see the user specs.
authors:
- Fábio Miranda Costa
requires:
- Meio.Autocomplete
license: MIT-style license
provides: [Meio.Autocomplete.Select]
...
*/
(function(global, $) {
global.Meio.Autocomplete.Select = new Class({
Extends: global.Meio.Autocomplete,
options: {
syncName: 'id', // if falsy it wont sync at start
valueField: null,
valueFilter: function(data) {
return data.id;
}
},
// overwritten
initialize: function(input, data, options, listInstance) {
this.parent(input, data, options, listInstance);
this.valueField = $(this.options.valueField);
if (!this.valueField) return;
this.syncWithValueField(data);
},
syncWithValueField: function(data) {
var value = this.getValueFromValueField();
if (value && this.options.syncName) {
this.addParameter(data);
this.addDataReadyEvent(value);
this.data.prepare(this.elements.field.node.get('value'));
} else {
this.addValueFieldEvents();
}
},
addValueFieldEvents: function() {
this.addEvents({
'select': function(elements, data) {
this.valueField.set('value', this.options.valueFilter.call(this, data));
},
'deselect': function(elements) {
this.valueField.set('value', '');
}
});
},
addParameter: function(data) {
this.parameter = {
name: this.options.syncName,
value: function() {
return this.valueField.value;
}.bind(this)
};
if (this.data.url) this.data.url.addParameter(this.parameter);
},
addDataReadyEvent: function(value) {
var self = this;
var runOnce = function() {
self.addValueFieldEvents();
var values = this.get();
for (var i = values.length; i--;) {
if (self.options.valueFilter.call(self, values[i]) == value) {
var text = self.filters.formatMatch.call(self, '', values[i], 0);
self.elements.field.node.set('value', text);
self.fireEvent('select', [self.elements, values[i], text, i]);
break;
}
}
if (this.url) this.url.removeParameter(self.parameter);
this.removeEvent('ready', runOnce);
};
this.data.addEvent('ready', runOnce);
},
getValueFromValueField: function() {
return this.valueField.get('value');
}
});
}(this, document.id || this.$));
/*
---
description: Transforms a select on an autocomplete field.
authors:
- Fábio Miranda Costa
requires:
- Meio.Autocomplete.Select
license: MIT-style license
provides: [Meio.Autocomplete.Select.One]
...
*/
(function(global, $) {
Meio.Autocomplete.Select.One = new Class({
Extends: Meio.Autocomplete.Select,
options: {
filter: {
path: 'text' // path to the text value on each object thats contained on the data array
}
},
//overwritten
initialize: function(select, options, listInstance) {
this.select = $(select);
this.replaceSelect();
this.parent(this.field, this.createDataArray(), Object.merge(options || {}, {
valueField: this.select,
valueFilter: function(data) {
return data.value;
}
}), listInstance);
},
replaceSelect: function() {
var selectedOption = this.select.getSelected()[0];
this.field = new Element('input', {type: 'text'});
var optionValue = selectedOption.get('value');
if (optionValue || optionValue === 0) {
this.field.set('value', selectedOption.get('html'));
}
this.select.setStyle('display', 'none');
this.field.inject(this.select, 'after');
},
createDataArray: function() {
var selectOptions = this.select.options, data = [];
for (var i = 0, selectOption, optionValue; selectOption = selectOptions[i++];) {
optionValue = selectOption.value;
if (optionValue || optionValue === 0) data.push({value: optionValue, text: selectOption.innerHTML});
}
return data;
},
addValueFieldEvents: function() {
this.addEvents({
'select': function(elements, data, text, index) {
var option = this.valueField.getElement('option[value="' + this.options.valueFilter.call(this, data) + '"]');
if (option) option.selected = true;
},
'deselect': function(elements) {
var option = this.valueField.getSelected()[0];
if (option) option.selected = false;
}
});
},
getValueFromValueField: function() {
return this.valueField.getSelected()[0].get('value');
}
});
}(this, document.id || this.$));
/*
---
description: A plugin for enabling autocomplete of a text input or textarea.
authors:
- Fábio Miranda Costa
requires:
- Meio.Autocomplete
license: MIT-style license
provides: [Meio.Autocomplete.Filter]
...
*/
Meio.Autocomplete.Filter = {