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Bootstrap/docs/assets/js/customizer.js

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/*!
* Bootstrap Customizer (http://getbootstrap.com/customize/)
* Copyright 2011-2014 Twitter, Inc.
*
* Licensed under the Creative Commons Attribution 3.0 Unported License. For
* details, see http://creativecommons.org/licenses/by/3.0/.
*/
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window.onload = function () { // wait for load in a dumb way because B-0
var cw = '/*!\n' +
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' * Bootstrap v3.1.1 (http://getbootstrap.com)\n' +
' * Copyright 2011-2014 Twitter, Inc.\n' +
' * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n' +
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' */\n\n'
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function showError(msg, err) {
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$('<div id="bsCustomizerAlert" class="bs-customizer-alert">' +
'<div class="container">' +
'<a href="#bsCustomizerAlert" data-dismiss="alert" class="close pull-right">&times;</a>' +
'<p class="bs-customizer-alert-text"><span class="glyphicon glyphicon-warning-sign"></span>' + msg + '</p>' +
(err.extract ? '<pre class="bs-customizer-alert-extract">' + err.extract.join('\n') + '</pre>' : '') +
'</div>' +
'</div>').appendTo('body').alert()
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throw err
}
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function showCallout(msg, showUpTop) {
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var callout = $('<div class="bs-callout bs-callout-danger">' +
'<h4>Attention!</h4>' +
'<p>' + msg + '</p>' +
'</div>')
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if (showUpTop) {
callout.appendTo('.bs-docs-container')
} else {
callout.insertAfter('.bs-customize-download')
}
}
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function getQueryParam(key) {
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key = key.replace(/[*+?^$.\[\]{}()|\\\/]/g, '\\$&') // escape RegEx meta chars
var match = location.search.match(new RegExp('[?&]' + key + '=([^&]+)(&|$)'))
return match && decodeURIComponent(match[1].replace(/\+/g, ' '))
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}
function createGist(configJson) {
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var data = {
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'description': 'Bootstrap Customizer Config',
'public': true,
'files': {
'config.json': {
'content': configJson
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}
}
}
$.ajax({
url: 'https://api.github.com/gists',
type: 'POST',
dataType: 'json',
data: JSON.stringify(data)
})
.success(function (result) {
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var origin = window.location.protocol + '//' + window.location.host
history.replaceState(false, document.title, origin + window.location.pathname + '?id=' + result.id)
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})
.error(function (err) {
showError('<strong>Ruh roh!</strong> Could not save gist file, configuration not saved.', err)
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})
}
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function getCustomizerData() {
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var vars = {}
$('#less-variables-section input')
.each(function () {
$(this).val() && (vars[$(this).prev().text()] = $(this).val())
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})
var data = {
vars: vars,
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css: $('#less-section input:checked') .map(function () { return this.value }).toArray(),
js: $('#plugin-section input:checked').map(function () { return this.value }).toArray()
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}
if ($.isEmptyObject(data.vars) && !data.css.length && !data.js.length) return
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return data
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}
function parseUrl() {
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var id = getQueryParam('id')
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if (!id) return
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$.ajax({
url: 'https://api.github.com/gists/' + id,
type: 'GET',
dataType: 'json'
})
.success(function (result) {
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var data = JSON.parse(result.files['config.json'].content)
if (data.js) {
$('#plugin-section input').each(function () {
$(this).prop('checked', ~$.inArray(this.value, data.js))
})
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}
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if (data.css) {
$('#less-section input').each(function () {
$(this).prop('checked', ~$.inArray(this.value, data.css))
})
}
if (data.vars) {
for (var i in data.vars) {
$('input[data-var="' + i + '"]').val(data.vars[i])
}
}
})
.error(function (err) {
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showError('Error fetching bootstrap config file', err)
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})
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}
function generateZip(css, js, fonts, config, complete) {
if (!css && !js) return showError('<strong>Ruh roh!</strong> No Bootstrap files selected.', new Error('no Bootstrap'))
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var zip = new JSZip()
if (css) {
var cssFolder = zip.folder('css')
for (var fileName in css) {
cssFolder.file(fileName, css[fileName])
}
}
if (js) {
var jsFolder = zip.folder('js')
for (var jsFileName in js) {
jsFolder.file(jsFileName, js[jsFileName])
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}
}
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if (fonts) {
var fontsFolder = zip.folder('fonts')
for (var fontsFileName in fonts) {
fontsFolder.file(fontsFileName, fonts[fontsFileName], {base64: true})
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}
}
if (config) {
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zip.file('config.json', config)
}
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var content = zip.generate({ type: 'blob' })
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complete(content)
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}
function generateCustomCSS(vars) {
var result = ''
for (var key in vars) {
result += key + ': ' + vars[key] + ';\n'
}
return result + '\n\n'
}
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function generateFonts() {
var glyphicons = $('#less-section [value="glyphicons.less"]:checked')
if (glyphicons.length) {
return __fonts
}
}
// Returns an Array of @import'd filenames in the order
// in which they appear in the file.
function includedLessFilenames(lessFilename) {
var IMPORT_REGEX = /^@import \"(.*?)\";$/
var lessLines = __less[lessFilename].split('\n')
for (var i = 0, imports = []; i < lessLines.length; i++) {
var match = IMPORT_REGEX.exec(lessLines[i])
if (match) imports.push(match[1])
}
return imports
}
function generateLESS(lessFilename, lessFileIncludes, vars) {
var lessSource = __less[lessFilename]
$.each(includedLessFilenames(lessFilename), function(index, filename) {
var fileInclude = lessFileIncludes[filename]
// Files not explicitly unchecked are compiled into the final stylesheet.
// Core stylesheets like 'normalize.less' are not included in the form
// since disabling them would wreck everything, and so their 'fileInclude'
// will be 'undefined'.
if (fileInclude || (fileInclude == null)) lessSource += __less[filename]
// Custom variables are added after Bootstrap variables so the custom
// ones take precedence.
if (('variables.less' === filename) && vars) lessSource += generateCustomCSS(vars)
})
lessSource = lessSource.replace(/@import[^\n]*/gi, '') //strip any imports
return lessSource
}
function compileLESS(lessSource, baseFilename, intoResult) {
var parser = new less.Parser({
paths: ['variables.less', 'mixins.less'],
optimization: 0,
filename: baseFilename + '.css'
}).parse(lessSource, function (err, tree) {
if (err) {
return showError('<strong>Ruh roh!</strong> Could not parse less files.', err)
}
intoResult[baseFilename + '.css'] = cw + tree.toCSS()
intoResult[baseFilename + '.min.css'] = cw + tree.toCSS({ compress: true })
})
}
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function generateCSS() {
var oneChecked = false
var lessFileIncludes = {}
$('#less-section input').each(function() {
var $this = $(this)
var checked = $this.is(':checked')
lessFileIncludes[$this.val()] = checked
oneChecked = oneChecked || checked
})
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if (!oneChecked) return false
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var result = {}
var vars = {}
$('#less-variables-section input')
.each(function () {
$(this).val() && (vars[$(this).prev().text()] = $(this).val())
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})
var bsLessSource = generateLESS('bootstrap.less', lessFileIncludes, vars)
var themeLessSource = generateLESS('theme.less', lessFileIncludes, vars)
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try {
compileLESS(bsLessSource, 'bootstrap', result)
compileLESS(themeLessSource, 'bootstrap-theme', result)
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} catch (err) {
return showError('<strong>Ruh roh!</strong> Could not parse less files.', err)
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}
return result
}
function generateJavascript() {
var $checked = $('#plugin-section input:checked')
if (!$checked.length) return false
var js = $checked
.map(function () { return __js[this.value] })
.toArray()
.join('\n')
return {
'bootstrap.js': js,
'bootstrap.min.js': cw + uglify(js)
}
}
var inputsComponent = $('#less-section input')
var inputsPlugin = $('#plugin-section input')
var inputsVariables = $('#less-variables-section input')
$('#less-section .toggle').on('click', function (e) {
e.preventDefault()
inputsComponent.prop('checked', !inputsComponent.is(':checked'))
})
$('#plugin-section .toggle').on('click', function (e) {
e.preventDefault()
inputsPlugin.prop('checked', !inputsPlugin.is(':checked'))
})
$('#less-variables-section .toggle').on('click', function (e) {
e.preventDefault()
inputsVariables.val('')
})
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$('[data-dependencies]').on('click', function () {
if (!$(this).is(':checked')) return
var dependencies = this.getAttribute('data-dependencies')
if (!dependencies) return
dependencies = dependencies.split(',')
for (var i = 0; i < dependencies.length; i++) {
var dependency = $('[value="' + dependencies[i] + '"]')
dependency && dependency.prop('checked', true)
}
})
$('[data-dependents]').on('click', function () {
if ($(this).is(':checked')) return
var dependents = this.getAttribute('data-dependents')
if (!dependents) return
dependents = dependents.split(',')
for (var i = 0; i < dependents.length; i++) {
var dependent = $('[value="' + dependents[i] + '"]')
dependent && dependent.prop('checked', false)
}
})
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var $compileBtn = $('#btn-compile')
var $downloadBtn = $('#btn-download')
$compileBtn.on('click', function (e) {
var configData = getCustomizerData()
var configJson = JSON.stringify(configData, null, 2)
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e.preventDefault()
$compileBtn.attr('disabled', 'disabled')
generateZip(generateCSS(), generateJavascript(), generateFonts(), configJson, function (blob) {
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$compileBtn.removeAttr('disabled')
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saveAs(blob, 'bootstrap.zip')
createGist(configJson)
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})
})
// browser support alerts
if (!window.URL && navigator.userAgent.toLowerCase().indexOf('safari') != -1) {
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showCallout('Looks like you\'re using safari, which sadly doesn\'t have the best support' +
'for HTML5 blobs. Because of this your file will be downloaded with the name <code>"untitled"</code>.' +
'However, if you check your downloads folder, just rename this <code>"untitled"</code> file' +
'to <code>"bootstrap.zip"</code> and you should be good to go!')
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} else if (!window.URL && !window.webkitURL) {
$('.bs-docs-section, .bs-docs-sidebar').css('display', 'none')
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showCallout('Looks like your current browser doesn\'t support the Bootstrap Customizer. Please take a second' +
'to <a href="https://www.google.com/intl/en/chrome/browser/">upgrade to a more modern browser</a>.', true)
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}
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parseUrl()
}