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add preFilter option to filter options when building multiselect #675

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add preFilter option to filter options when building multiselect #675

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1c4d230
pull runFilter code out into a function and add preFilter option
kielni Dec 16, 2015
8395103
bump version
kielni Dec 16, 2015
9e4f0c0
pass a value to runFilter
kielni Dec 16, 2015
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2 changes: 1 addition & 1 deletion bower.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
"name": "bootstrap-multiselect",
"description": "Twitter Bootstrap plugin to make selects user friendly.",
"homepage": "http://davidstutz.github.io/bootstrap-multiselect/",
"version": "0.9.13",
"version": "0.9.14",
"keywords": [
"js",
"css",
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134 changes: 72 additions & 62 deletions dist/js/bootstrap-multiselect.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1008,6 +1008,69 @@
}
},

runFilter: function(query) {
this.query = query || '';
var currentGroup, currentGroupVisible;
$.each($('li', this.$ul), $.proxy(function(index, element) {
var value = $('input', element).length > 0 ? $('input', element).val() : "";
var text = $('label', element).text();

var filterCandidate = '';
if ((this.options.filterBehavior === 'text')) {
filterCandidate = text;
}
else if ((this.options.filterBehavior === 'value')) {
filterCandidate = value;
}
else if (this.options.filterBehavior === 'both') {
filterCandidate = text + '\n' + value;
}

if (value !== this.options.selectAllValue && text) {

// By default lets assume that element is not
// interesting for this search.
var showElement = false;

if (this.options.enableCaseInsensitiveFiltering) {
filterCandidate = filterCandidate.toLowerCase();
this.query = this.query.toLowerCase();
}

if (this.options.enableFullValueFiltering && this.options.filterBehavior !== 'both') {
var valueToMatch = filterCandidate.trim().substring(0, this.query.length);
if (this.query.indexOf(valueToMatch) > -1) {
showElement = true;
}
}
else if (filterCandidate.indexOf(this.query) > -1) {
showElement = true;
}

// Toggle current element (group or group item) according to showElement boolean.
$(element).toggle(showElement).toggleClass('filter-hidden', !showElement);

// Differentiate groups and group items.
if ($(element).hasClass('multiselect-group')) {
// Remember group status.
currentGroup = element;
currentGroupVisible = showElement;
}
else {
// Show group name when at least one of its items is visible.
if (showElement) {
$(currentGroup).show().removeClass('filter-hidden');
}

// Show all group items when group name satisfies filter.
if (!showElement && currentGroupVisible) {
$(element).show().removeClass('filter-hidden');
}
}
}
}, this));
},

/**
* Builds the filter.
*/
Expand All @@ -1021,7 +1084,10 @@

this.$filter = $(this.options.templates.filter);
$('input', this.$filter).attr('placeholder', this.options.filterPlaceholder);

if (this.options.preFilter) {
$('input', this.$filter).val(this.options.preFilter);
}

// Adds optional filter clear button
if(this.options.includeFilterClearBtn){
var clearBtn = $(this.options.templates.filterClearBtn);
Expand All @@ -1036,6 +1102,10 @@

this.$ul.prepend(this.$filter);

if (this.options.preFilter) {
this.runFilter(this.options.preFilter);
}

this.$filter.val(this.query).on('click', function(event) {
event.stopPropagation();
}).on('input keydown', $.proxy(function(event) {
Expand All @@ -1050,67 +1120,7 @@
this.searchTimeout = this.asyncFunction($.proxy(function() {

if (this.query !== event.target.value) {
this.query = event.target.value;

var currentGroup, currentGroupVisible;
$.each($('li', this.$ul), $.proxy(function(index, element) {
var value = $('input', element).length > 0 ? $('input', element).val() : "";
var text = $('label', element).text();

var filterCandidate = '';
if ((this.options.filterBehavior === 'text')) {
filterCandidate = text;
}
else if ((this.options.filterBehavior === 'value')) {
filterCandidate = value;
}
else if (this.options.filterBehavior === 'both') {
filterCandidate = text + '\n' + value;
}

if (value !== this.options.selectAllValue && text) {

// By default lets assume that element is not
// interesting for this search.
var showElement = false;

if (this.options.enableCaseInsensitiveFiltering) {
filterCandidate = filterCandidate.toLowerCase();
this.query = this.query.toLowerCase();
}

if (this.options.enableFullValueFiltering && this.options.filterBehavior !== 'both') {
var valueToMatch = filterCandidate.trim().substring(0, this.query.length);
if (this.query.indexOf(valueToMatch) > -1) {
showElement = true;
}
}
else if (filterCandidate.indexOf(this.query) > -1) {
showElement = true;
}

// Toggle current element (group or group item) according to showElement boolean.
$(element).toggle(showElement).toggleClass('filter-hidden', !showElement);

// Differentiate groups and group items.
if ($(element).hasClass('multiselect-group')) {
// Remember group status.
currentGroup = element;
currentGroupVisible = showElement;
}
else {
// Show group name when at least one of its items is visible.
if (showElement) {
$(currentGroup).show().removeClass('filter-hidden');
}

// Show all group items when group name satisfies filter.
if (!showElement && currentGroupVisible) {
$(element).show().removeClass('filter-hidden');
}
}
}
}, this));
this.runFilter(event.target.value);
}

this.updateSelectAll();
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