1 | <?php |
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2 | /** |
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3 | * XOOPS page navigation |
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4 | * |
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5 | * You may not change or alter any portion of this comment or credits |
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6 | * of supporting developers from this source code or any supporting source code |
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7 | * which is considered copyrighted (c) material of the original comment or credit authors. |
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8 | * This program is distributed in the hope that it will be useful, |
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9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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11 | * |
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12 | * @copyright (c) 2000-2021 XOOPS Project (www.xoops.org) |
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13 | * @license GNU GPL 2 (https://www.gnu.org/licenses/gpl-2.0.html) |
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14 | * @package kernel |
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15 | * @since 2.0.0 |
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16 | * @author Kazumi Ono (http://www.myweb.ne.jp/, http://jp.xoops.org/) |
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17 | */ |
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18 | |||
19 | use Xmf\Request; |
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20 | |||
21 | defined('XOOPS_ROOT_PATH') || exit('Restricted access'); |
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22 | |||
23 | /** |
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24 | * Class XoopsPageNav |
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25 | */ |
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26 | class XoopsPageNav |
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27 | { |
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28 | /** |
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29 | * *#@+ |
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30 | * |
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31 | * @access private |
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32 | */ |
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33 | public $total; |
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34 | public $perpage; |
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35 | public $current; |
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36 | public $url; |
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37 | public $extra; |
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38 | /** |
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39 | * *#@- |
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40 | */ |
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41 | |||
42 | /** |
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43 | * Constructor |
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44 | * |
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45 | * @param int $total_items Total number of items |
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46 | * @param int $items_perpage Number of items per page |
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47 | * @param int $current_start First item on the current page |
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48 | * @param string $start_name Name for "start" or "offset" |
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49 | * @param string $extra_arg Additional arguments to pass in the URL |
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50 | */ |
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51 | public function __construct($total_items, $items_perpage, $current_start, $start_name = 'start', $extra_arg = '') |
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52 | { |
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53 | $this->total = (int)$total_items; |
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54 | $this->perpage = (int)$items_perpage; |
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55 | $this->current = (int)$current_start; |
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56 | $this->extra = $extra_arg; |
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57 | if ($extra_arg != '' && (substr($extra_arg, -5) !== '&' || substr($extra_arg, -1) !== '&')) { |
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58 | $this->extra = '&' . $extra_arg; |
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59 | } |
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60 | $this->url = htmlspecialchars(Request::getString('PHP_SELF', '', 'SERVER'), ENT_QUOTES | ENT_HTML5) . '?' . trim($start_name) . '='; |
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61 | } |
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62 | |||
63 | /** |
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64 | * Create text navigation |
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65 | * |
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66 | * @param integer $offset |
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67 | * @return string |
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68 | */ |
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69 | public function renderNav($offset = 4) |
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70 | { |
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71 | $ret = ''; |
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72 | if ($this->total <= $this->perpage) { |
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73 | return $ret; |
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74 | } |
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75 | if (($this->total != 0) && ($this->perpage != 0)) { |
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76 | $navigation = array(); |
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77 | $total_pages = ceil($this->total / $this->perpage); |
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78 | if ($total_pages > 1) { |
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79 | $i = 0; |
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80 | $prev = $this->current - $this->perpage; |
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81 | if ($prev >= 0) { |
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82 | $navigation[$i]['url'] = $this->url . $prev . $this->extra; |
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83 | $navigation[$i]['value'] = ''; |
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84 | $navigation[$i]['option'] = 'first'; |
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85 | ++$i; |
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86 | } |
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87 | $counter = 1; |
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88 | $current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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89 | while ($counter <= $total_pages) { |
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90 | if ($counter == $current_page) { |
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91 | $navigation[$i]['url'] = $this->url . $prev . $this->extra; |
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92 | $navigation[$i]['value'] = $counter; |
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93 | $navigation[$i]['option'] = 'selected'; |
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94 | } elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) { |
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95 | if ($counter == $total_pages && $current_page < $total_pages - $offset) { |
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96 | $navigation[$i]['url'] = ''; |
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97 | $navigation[$i]['value'] = ''; |
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98 | $navigation[$i]['option'] = 'break'; |
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99 | ++$i; |
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100 | } |
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101 | $navigation[$i]['url'] = $this->url . (($counter - 1) * $this->perpage) . $this->extra; |
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102 | $navigation[$i]['value'] = $counter; |
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103 | $navigation[$i]['option'] = 'show'; |
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104 | ++$i; |
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105 | if ($counter == 1 && $current_page > 1 + $offset) { |
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106 | $navigation[$i]['url'] = ''; |
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107 | $navigation[$i]['value'] = ''; |
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108 | $navigation[$i]['option'] = 'break'; |
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109 | } |
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110 | } |
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111 | ++$counter; |
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112 | ++$i; |
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113 | } |
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114 | $next = $this->current + $this->perpage; |
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115 | if ($this->total > $next) { |
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116 | $navigation[$i]['url'] = $this->url . $next . $this->extra; |
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117 | $navigation[$i]['value'] = ''; |
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118 | $navigation[$i]['option'] = 'last'; |
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119 | } |
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120 | } |
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121 | return $this->displayPageNav('Nav', $navigation); |
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122 | } |
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123 | return $ret; |
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124 | } |
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125 | |||
126 | /** |
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127 | * Create a navigational dropdown list |
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128 | * |
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129 | * @param boolean $showbutton Show the "Go" button? |
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130 | * @return string |
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131 | */ |
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132 | public function renderSelect($showbutton = false) |
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133 | { |
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134 | $ret = ''; |
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135 | if ($this->total < $this->perpage) { |
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136 | return $ret; |
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137 | } |
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138 | $total_pages = ceil($this->total / $this->perpage); |
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139 | if ($total_pages > 1) { |
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140 | $counter = 1; |
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141 | $current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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142 | while ($counter <= $total_pages) { |
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143 | if ($counter == $current_page) { |
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144 | $ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '" selected>' . $counter . '</option>'; |
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145 | } else { |
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146 | $ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '">' . $counter . '</option>'; |
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147 | } |
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148 | ++$counter; |
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149 | } |
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150 | if ($showbutton) { |
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151 | $navigation['button'] = true; |
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152 | } else { |
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153 | $navigation['button'] = false; |
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154 | } |
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155 | $navigation['select'] = $ret; |
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156 | return $this->displayPageNav('Select', $navigation); |
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157 | } |
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158 | return $ret; |
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159 | } |
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160 | |||
161 | /** |
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162 | * Create navigation with images |
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163 | * |
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164 | * @param integer $offset |
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165 | * @return string |
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166 | */ |
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167 | public function renderImageNav($offset = 4) |
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168 | { |
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169 | $ret = ''; |
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170 | if ($this->total < $this->perpage) { |
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171 | return $ret; |
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172 | } |
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173 | $total_pages = ceil($this->total / $this->perpage); |
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174 | if ($total_pages > 1) { |
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175 | $i = 0; |
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176 | $prev = $this->current - $this->perpage; |
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177 | if ($prev >= 0) { |
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178 | $navigation[$i]['url'] = $this->url . $prev . $this->extra; |
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179 | $navigation[$i]['value'] = ''; |
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180 | $navigation[$i]['option'] = 'first'; |
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181 | ++$i; |
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182 | } else { |
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183 | $navigation[$i]['url'] = ''; |
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184 | $navigation[$i]['value'] = ''; |
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185 | $navigation[$i]['option'] = 'firstempty'; |
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186 | ++$i; |
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187 | } |
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188 | $counter = 1; |
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189 | $current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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190 | while ($counter <= $total_pages) { |
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191 | if ($counter == $current_page) { |
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192 | $navigation[$i]['url'] = ''; |
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193 | $navigation[$i]['value'] = $counter; |
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194 | $navigation[$i]['option'] = 'selected'; |
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195 | } elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) { |
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196 | if ($counter == $total_pages && $current_page < $total_pages - $offset) { |
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197 | $navigation[$i]['url'] = ''; |
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198 | $navigation[$i]['value'] = ''; |
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199 | $navigation[$i]['option'] = 'break'; |
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200 | ++$i; |
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201 | } |
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202 | $navigation[$i]['url'] = $this->url . (($counter - 1) * $this->perpage) . $this->extra; |
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203 | $navigation[$i]['value'] = $counter; |
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204 | $navigation[$i]['option'] = 'show'; |
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205 | ++$i; |
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206 | if ($counter == 1 && $current_page > 1 + $offset) { |
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207 | $navigation[$i]['url'] = ''; |
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208 | $navigation[$i]['value'] = ''; |
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209 | $navigation[$i]['option'] = 'break'; |
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210 | } |
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211 | } |
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212 | ++$counter; |
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213 | ++$i; |
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214 | } |
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215 | $next = $this->current + $this->perpage; |
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216 | if ($this->total > $next) { |
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217 | $navigation[$i]['url'] = $this->url . $next . $this->extra; |
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218 | $navigation[$i]['value'] = ''; |
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219 | $navigation[$i]['option'] = 'last'; |
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220 | ++$i; |
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221 | } else { |
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222 | $navigation[$i]['url'] = ''; |
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223 | $navigation[$i]['value'] = ''; |
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224 | $navigation[$i]['option'] = 'lastempty'; |
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225 | } |
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226 | return $this->displayPageNav('Image', $navigation); |
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227 | } |
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228 | return $ret; |
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229 | } |
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230 | |||
231 | /** |
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232 | * Display navigation in template |
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233 | * |
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234 | * @param string $type |
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235 | * @param array $navigation |
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236 | * @return string |
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237 | */ |
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238 | private function displayPageNav($type = 'nav', $navigation = array()){ |
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239 | if (!isset($GLOBALS['xoTheme']) || !is_object($GLOBALS['xoTheme'])) { |
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240 | include_once $GLOBALS['xoops']->path('/class/theme.php'); |
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241 | $GLOBALS['xoTheme'] = new \xos_opal_Theme(); |
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242 | } |
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243 | require_once $GLOBALS['xoops']->path('/class/template.php'); |
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244 | $pageNavTpl = new \XoopsTpl(); |
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245 | $pageNavTpl->assign('pageNavType', $type); |
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246 | $pageNavTpl->assign('pageNavigation', $navigation); |
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247 | |||
248 | return $pageNavTpl->fetch("db:system_pagenav.tpl"); |
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249 | |||
250 | } |
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251 | } |
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252 |