1 /** |
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2 * Theme functions file |
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3 * |
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4 * Contains handlers for navigation, accessibility, header sizing |
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5 * footer widgets and Featured Content slider |
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6 * |
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7 */ |
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8 ( function( $ ) { |
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9 var body = $( 'body' ), |
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10 _window = $( window ), |
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11 nav, button, menu; |
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12 |
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13 nav = $( '#primary-navigation' ); |
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14 button = nav.find( '.menu-toggle' ); |
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15 menu = nav.find( '.nav-menu' ); |
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16 |
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17 // Enable menu toggle for small screens. |
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18 ( function() { |
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19 if ( ! nav.length || ! button.length ) { |
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20 return; |
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21 } |
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22 |
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23 // Hide button if menu is missing or empty. |
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24 if ( ! menu.length || ! menu.children().length ) { |
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25 button.hide(); |
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26 return; |
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27 } |
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28 |
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29 button.on( 'click.twentyfourteen', function() { |
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30 nav.toggleClass( 'toggled-on' ); |
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31 if ( nav.hasClass( 'toggled-on' ) ) { |
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32 $( this ).attr( 'aria-expanded', 'true' ); |
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33 menu.attr( 'aria-expanded', 'true' ); |
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34 } else { |
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35 $( this ).attr( 'aria-expanded', 'false' ); |
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36 menu.attr( 'aria-expanded', 'false' ); |
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37 } |
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38 } ); |
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39 } )(); |
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40 |
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41 /* |
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42 * Makes "skip to content" link work correctly in IE9 and Chrome for better |
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43 * accessibility. |
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44 * |
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45 * @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/ |
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46 */ |
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47 _window.on( 'hashchange.twentyfourteen', function() { |
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48 var hash = location.hash.substring( 1 ), element; |
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49 |
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50 if ( ! hash ) { |
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51 return; |
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52 } |
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53 |
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54 element = document.getElementById( hash ); |
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55 |
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56 if ( element ) { |
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57 if ( ! /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) { |
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58 element.tabIndex = -1; |
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59 } |
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60 |
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61 element.focus(); |
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62 |
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63 // Repositions the window on jump-to-anchor to account for header height. |
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64 window.scrollBy( 0, -80 ); |
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65 } |
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66 } ); |
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67 |
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68 $( function() { |
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69 // Search toggle. |
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70 $( '.search-toggle' ).on( 'click.twentyfourteen', function( event ) { |
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71 var that = $( this ), |
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72 wrapper = $( '#search-container' ), |
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73 container = that.find( 'a' ); |
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74 |
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75 that.toggleClass( 'active' ); |
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76 wrapper.toggleClass( 'hide' ); |
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77 |
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78 if ( that.hasClass( 'active' ) ) { |
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79 container.attr( 'aria-expanded', 'true' ); |
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80 } else { |
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81 container.attr( 'aria-expanded', 'false' ); |
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82 } |
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83 |
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84 if ( that.is( '.active' ) || $( '.search-toggle .screen-reader-text' )[0] === event.target ) { |
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85 wrapper.find( '.search-field' ).focus(); |
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86 } |
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87 } ); |
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88 |
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89 /* |
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90 * Fixed header for large screen. |
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91 * If the header becomes more than 48px tall, unfix the header. |
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92 * |
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93 * The callback on the scroll event is only added if there is a header |
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94 * image and we are not on mobile. |
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95 */ |
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96 if ( _window.width() > 781 ) { |
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97 var mastheadHeight = $( '#masthead' ).height(), |
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98 toolbarOffset, mastheadOffset; |
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99 |
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100 if ( mastheadHeight > 48 ) { |
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101 body.removeClass( 'masthead-fixed' ); |
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102 } |
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103 |
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104 if ( body.is( '.header-image' ) ) { |
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105 toolbarOffset = body.is( '.admin-bar' ) ? $( '#wpadminbar' ).height() : 0; |
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106 mastheadOffset = $( '#masthead' ).offset().top - toolbarOffset; |
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107 |
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108 _window.on( 'scroll.twentyfourteen', function() { |
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109 if ( _window.scrollTop() > mastheadOffset && mastheadHeight < 49 ) { |
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110 body.addClass( 'masthead-fixed' ); |
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111 } else { |
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112 body.removeClass( 'masthead-fixed' ); |
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113 } |
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114 } ); |
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115 } |
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116 } |
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117 |
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118 // Focus styles for menus. |
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119 $( '.primary-navigation, .secondary-navigation' ).find( 'a' ).on( 'focus.twentyfourteen blur.twentyfourteen', function() { |
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120 $( this ).parents().toggleClass( 'focus' ); |
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121 } ); |
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122 } ); |
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123 |
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124 /** |
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125 * Add or remove ARIA attributes. |
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126 * |
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127 * Uses jQuery's width() function to determine the size of the window and add |
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128 * the default ARIA attributes for the menu toggle if it's visible. |
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129 * @since Twenty Fourteen 1.4 |
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130 */ |
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131 function onResizeARIA() { |
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132 if ( 781 > _window.width() ) { |
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133 button.attr( 'aria-expanded', 'false' ); |
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134 menu.attr( 'aria-expanded', 'false' ); |
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135 button.attr( 'aria-controls', 'primary-menu' ); |
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136 } else { |
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137 button.removeAttr( 'aria-expanded' ); |
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138 menu.removeAttr( 'aria-expanded' ); |
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139 button.removeAttr( 'aria-controls' ); |
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140 } |
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141 } |
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142 |
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143 _window |
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144 .on( 'load.twentyfourteen', onResizeARIA ) |
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145 .on( 'resize.twentyfourteen', function() { |
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146 onResizeARIA(); |
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147 } ); |
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148 |
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149 _window.load( function() { |
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150 var footerSidebar, |
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151 isCustomizeSelectiveRefresh = ( 'undefined' !== typeof wp && wp.customize && wp.customize.selectiveRefresh ); |
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152 |
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153 // Arrange footer widgets vertically. |
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154 if ( $.isFunction( $.fn.masonry ) ) { |
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155 footerSidebar = $( '#footer-sidebar' ); |
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156 footerSidebar.masonry( { |
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157 itemSelector: '.widget', |
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158 columnWidth: function( containerWidth ) { |
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159 return containerWidth / 4; |
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160 }, |
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161 gutterWidth: 0, |
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162 isResizable: true, |
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163 isRTL: $( 'body' ).is( '.rtl' ) |
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164 } ); |
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165 |
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166 if ( isCustomizeSelectiveRefresh ) { |
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167 |
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168 // Retain previous masonry-brick initial position. |
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169 wp.customize.selectiveRefresh.bind( 'partial-content-rendered', function( placement ) { |
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170 var copyPosition = ( |
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171 placement.partial.extended( wp.customize.widgetsPreview.WidgetPartial ) && |
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172 placement.removedNodes instanceof jQuery && |
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173 placement.removedNodes.is( '.masonry-brick' ) && |
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174 placement.container instanceof jQuery |
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175 ); |
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176 if ( copyPosition ) { |
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177 placement.container.css( { |
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178 position: placement.removedNodes.css( 'position' ), |
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179 top: placement.removedNodes.css( 'top' ), |
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180 left: placement.removedNodes.css( 'left' ) |
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181 } ); |
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182 } |
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183 } ); |
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184 |
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185 // Re-arrange footer widgets after selective refresh event. |
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186 wp.customize.selectiveRefresh.bind( 'sidebar-updated', function( sidebarPartial ) { |
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187 if ( 'sidebar-3' === sidebarPartial.sidebarId ) { |
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188 footerSidebar.masonry( 'reloadItems' ); |
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189 footerSidebar.masonry( 'layout' ); |
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190 } |
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191 } ); |
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192 } |
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193 } |
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194 |
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195 // Initialize audio and video players in Twenty_Fourteen_Ephemera_Widget widget when selectively refreshed in Customizer. |
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196 if ( isCustomizeSelectiveRefresh && wp.mediaelement ) { |
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197 wp.customize.selectiveRefresh.bind( 'partial-content-rendered', function() { |
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198 wp.mediaelement.initialize(); |
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199 } ); |
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200 } |
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201 |
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202 // Initialize Featured Content slider. |
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203 if ( body.is( '.slider' ) ) { |
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204 $( '.featured-content' ).featuredslider( { |
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205 selector: '.featured-content-inner > article', |
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206 controlsContainer: '.featured-content' |
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207 } ); |
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208 } |
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209 } ); |
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210 } )( jQuery ); |
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