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1 <?php |
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2 /** |
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3 * BackPress Scripts enqueue. |
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4 * |
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5 * These classes were refactored from the WordPress WP_Scripts and WordPress |
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6 * script enqueue API. |
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7 * |
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8 * @package BackPress |
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9 * @since r16 |
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10 */ |
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11 |
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12 /** |
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13 * BackPress Scripts enqueue class. |
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14 * |
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15 * @package BackPress |
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16 * @uses WP_Dependencies |
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17 * @since r16 |
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18 */ |
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19 class WP_Scripts extends WP_Dependencies { |
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20 var $base_url; // Full URL with trailing slash |
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21 var $content_url; |
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22 var $default_version; |
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23 var $in_footer = array(); |
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24 var $concat = ''; |
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25 var $concat_version = ''; |
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26 var $do_concat = false; |
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27 var $print_html = ''; |
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28 var $print_code = ''; |
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29 var $ext_handles = ''; |
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30 var $ext_version = ''; |
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31 var $default_dirs; |
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32 |
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33 function __construct() { |
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34 do_action_ref_array( 'wp_default_scripts', array(&$this) ); |
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35 } |
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36 |
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37 /** |
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38 * Prints scripts |
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39 * |
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40 * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies. |
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41 * |
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42 * @param mixed handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts. |
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43 * @param int group (optional) If scripts were queued in groups prints this group number. |
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44 * @return array Scripts that have been printed |
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45 */ |
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46 function print_scripts( $handles = false, $group = false ) { |
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47 return $this->do_items( $handles, $group ); |
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48 } |
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49 |
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50 function print_scripts_l10n( $handle, $echo = true ) { |
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51 if ( empty($this->registered[$handle]->extra['l10n']) || empty($this->registered[$handle]->extra['l10n'][0]) || !is_array($this->registered[$handle]->extra['l10n'][1]) ) |
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52 return false; |
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53 |
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54 $object_name = $this->registered[$handle]->extra['l10n'][0]; |
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55 |
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56 $data = "var $object_name = {\n"; |
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57 $eol = ''; |
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58 foreach ( $this->registered[$handle]->extra['l10n'][1] as $var => $val ) { |
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59 if ( 'l10n_print_after' == $var ) { |
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60 $after = $val; |
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61 continue; |
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62 } |
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63 $data .= "$eol\t$var: \"" . esc_js( $val ) . '"'; |
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64 $eol = ",\n"; |
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65 } |
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66 $data .= "\n};\n"; |
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67 $data .= isset($after) ? "$after\n" : ''; |
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68 |
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69 if ( $echo ) { |
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70 echo "<script type='text/javascript'>\n"; |
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71 echo "/* <![CDATA[ */\n"; |
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72 echo $data; |
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73 echo "/* ]]> */\n"; |
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74 echo "</script>\n"; |
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75 return true; |
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76 } else { |
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77 return $data; |
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78 } |
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79 } |
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80 |
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81 function do_item( $handle, $group = false ) { |
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82 if ( !parent::do_item($handle) ) |
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83 return false; |
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84 |
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85 if ( 0 === $group && $this->groups[$handle] > 0 ) { |
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86 $this->in_footer[] = $handle; |
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87 return false; |
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88 } |
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89 |
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90 if ( false === $group && in_array($handle, $this->in_footer, true) ) |
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91 $this->in_footer = array_diff( $this->in_footer, (array) $handle ); |
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92 |
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93 $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version; |
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94 if ( isset($this->args[$handle]) ) |
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95 $ver .= '&' . $this->args[$handle]; |
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96 |
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97 $src = $this->registered[$handle]->src; |
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98 |
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99 if ( $this->do_concat ) { |
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100 $srce = apply_filters( 'script_loader_src', $src, $handle ); |
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101 if ( $this->in_default_dir($srce) ) { |
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102 $this->print_code .= $this->print_scripts_l10n( $handle, false ); |
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103 $this->concat .= "$handle,"; |
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104 $this->concat_version .= "$handle$ver"; |
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105 return true; |
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106 } else { |
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107 $this->ext_handles .= "$handle,"; |
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108 $this->ext_version .= "$handle$ver"; |
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109 } |
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110 } |
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111 |
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112 $this->print_scripts_l10n( $handle ); |
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113 if ( !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) { |
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114 $src = $this->base_url . $src; |
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115 } |
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116 |
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117 $src = add_query_arg('ver', $ver, $src); |
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118 $src = esc_url(apply_filters( 'script_loader_src', $src, $handle )); |
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119 |
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120 if ( $this->do_concat ) |
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121 $this->print_html .= "<script type='text/javascript' src='$src'></script>\n"; |
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122 else |
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123 echo "<script type='text/javascript' src='$src'></script>\n"; |
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124 |
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125 return true; |
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126 } |
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127 |
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128 /** |
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129 * Localizes a script |
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130 * |
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131 * Localizes only if script has already been added |
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132 * |
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133 * @param string handle Script name |
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134 * @param string object_name Name of JS object to hold l10n info |
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135 * @param array l10n Array of JS var name => localized string |
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136 * @return bool Successful localization |
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137 */ |
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138 function localize( $handle, $object_name, $l10n ) { |
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139 if ( !$object_name || !$l10n ) |
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140 return false; |
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141 return $this->add_data( $handle, 'l10n', array( $object_name, $l10n ) ); |
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142 } |
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143 |
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144 function set_group( $handle, $recursion, $group = false ) { |
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145 $grp = isset($this->registered[$handle]->extra['group']) ? (int) $this->registered[$handle]->extra['group'] : 0; |
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146 if ( false !== $group && $grp > $group ) |
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147 $grp = $group; |
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148 |
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149 return parent::set_group( $handle, $recursion, $grp ); |
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150 } |
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151 |
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152 function all_deps( $handles, $recursion = false, $group = false ) { |
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153 $r = parent::all_deps( $handles, $recursion ); |
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154 if ( !$recursion ) |
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155 $this->to_do = apply_filters( 'print_scripts_array', $this->to_do ); |
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156 return $r; |
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157 } |
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158 |
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159 function do_head_items() { |
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160 $this->do_items(false, 0); |
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161 return $this->done; |
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162 } |
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163 |
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164 function do_footer_items() { |
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165 if ( !empty($this->in_footer) ) { |
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166 foreach( $this->in_footer as $key => $handle ) { |
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167 if ( !in_array($handle, $this->done, true) && isset($this->registered[$handle]) ) { |
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168 $this->do_item($handle); |
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169 $this->done[] = $handle; |
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170 unset( $this->in_footer[$key] ); |
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171 } |
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172 } |
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173 } |
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174 return $this->done; |
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175 } |
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176 |
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177 function in_default_dir($src) { |
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178 if ( ! $this->default_dirs ) |
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179 return true; |
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180 |
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181 foreach ( (array) $this->default_dirs as $test ) { |
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182 if ( 0 === strpos($src, $test) ) |
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183 return true; |
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184 } |
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185 return false; |
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186 } |
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187 |
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188 function reset() { |
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189 $this->do_concat = false; |
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190 $this->print_code = ''; |
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191 $this->concat = ''; |
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192 $this->concat_version = ''; |
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193 $this->print_html = ''; |
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194 $this->ext_version = ''; |
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195 $this->ext_handles = ''; |
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196 } |
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197 } |