File zippy\core\html\datalist\paginator.php

1:	<?php
2:
3:	namespace Zippy\Html\DataList;
4:
5:	use Zippy\Html\HtmlComponent;
6:	use Zippy\Interfaces\Requestable;
7:	use Zippy\WebApplication;
8:	use Zippy\HtpRequest;
9:	use Zippy\Interfaces\EventReceiver;
10:	use Zippy\Event;
11:
12:	/**
13:	* Класс отображающий разбивку списка по страницам
14:	* По умолячанию используется Pagination из Twitter Bootstrap
15:	*/
16:	class Paginator extends HtmlComponent implements Requestable
17:	{
18:	private $datalist;
19:	private $maxbuttons = 10;
20:	private $firstButton = 1;
21:	private $ajax;
22:	protected $event = null;
23:
24:	/**
25:	* Конструктор
26:	* @param string ID
27:	* @param DataList Объект использующий paginator
28:	* @param pagesize размер страницы
29:	* @param ajax исппользовать ajax
30:	*/
31:	public function __construct($id, \Zippy\Html\DataList\AbstractList $datalist, $pagesize = 0, $ajax = false) {
32:	parent::__construct($id);
33:	$this->datalist = $datalist;
34:	$this->ajax = $ajax;
35:	if ($pagesize > 0) {
36:	$this->datalist->setPageSize($pagesize);
37:	}
38:	}
39:
40:	/**
41:	* Формирует URL для ссылки в списке страниц
42:	*/
43:
44:	/**
45:	* @see HtmlComponent
46:	*/
47:	final protected function RenderImpl() {
48:	$content = $this->getContent($this->datalist->getPageCount(), $this->datalist->getCurrentPage());
49:	$this->getTag()->html($content);
50:	}
51:
52:	/**
53:	* Рендерит список страниц
54:	*/
55:	public function getContent($pages, $currentpage) {
56:	if ($pages <= 1) {
57:	return "";
58:	}
59:	if ($currentpage > $pages) {
60:	$currentpage = 1;
61:	}
62:
63:
64:	$content = "<ul class=\"pagination\">";
65:
66:
67:	$iLeft = (int)$this->maxbuttons / 2;
68:	$iRight = $iLeft;
69:
70:
71:	if ($pages <= $iRight + $iRight + 1) {
72:	for ($i = 1; $i <= $pages; $i++) {
73:
74:	if ($currentpage == $i) {
75:	$content .= "<li class=\"page-item active\"><a class=\"page-link\" href=\"javascript:void(0);\" > {$i} </a></li>";
76:	} else {
77:	$content .= "<li class=\"page-item\" ><a class=\"page-link\" href=\"javascript:void(0);\" onclick=\"" . $this->getUrl($i) . "\"> {$i} </a></li>";
78:	}
79:
80:	}
81:	} else {
82:	if ($currentpage > $iLeft && $currentpage < ($pages - $iRight)) {
83:	$content .= "<Li class=\"page-item\" ><a class=\"page-link\" href='void(0);' aria-label=\"Previous\" onclick=\"" . $this->getUrl(1) . "\"><span aria-hidden=\"true\" >«</span></a></li>";
84:
85:	for ($i = $currentpage - $iLeft; $i <= $currentpage + $iRight; $i++) {
86:
87:	if ($currentpage == $i) {
88:	$content .= "<li class=\"page-item active\"><a class=\"page-link\" href=\"javascript:void(0);\" > {$i} </a></li>";
89:	} else {
90:	$content .= "<li class=\"page-item\" ><a class=\"page-link\" href=\"javascript:void(0);\" onclick=\"" . $this->getUrl($i) . "\"> {$i} </a></li>";
91:	}
92:
93:	}
94:	$content .= "<li class=\"page-item\" ><a class=\"page-link\" href='void(0);' aria-label=\"Next\" onclick=\"" . $this->getUrl($pages) . "\"> <span aria-hidden=\"true\">»</span></a></li>";
95:
96:	} elseif ($currentpage <= $iLeft) {
97:
98:	$iSlice = 1 + $iLeft - $currentpage;
99:	for ($i = 1; $i <= $currentpage + ($iRight + $iSlice); $i++) {
100:	if ($currentpage == $i) {
101:	$content .= "<li class=\"page-item active\"><a class=\"page-link\" href=\"javascript:void(0);\" > {$i} </a></li>";
102:	} else {
103:	$content .= "<li class=\"page-item\" ><a class=\"page-link\" href=\"javascript:void(0);\" onclick=\"" . $this->getUrl($i) . "\"> {$i} </a></li>";
104:	}
105:
106:	}
107:	$content .= "<li class=\"page-item\" ><a class=\"page-link\" href='void(0);' aria-label=\"Next\" onclick=\"" . $this->getUrl($pages) . "\"> <span aria-hidden=\"true\">»</span></a></li>";
108:
109:	} else {
110:	$content .= "<Li class=\"page-item\" ><a class=\"page-link\" href='void(0);' aria-label=\"Previous\" onclick=\"" . $this->getUrl(1) . "\"><span aria-hidden=\"true\" >«</span></a></li>";
111:
112:	$iSlice = $iRight - ($pages - $currentpage);
113:
114:	for ($i = $currentpage - ($iLeft + $iSlice); $i <= $pages; $i++) {
115:	if ($currentpage == $i) {
116:	$content .= "<li class=\"page-item active\"><a class=\"page-link\" href=\"javascript:void(0);\" > {$i} </a></li>";
117:	} else {
118:	$content .= "<li class=\"page-item\" ><a class=\"page-link\" href=\"javascript:void(0);\" onclick=\"" . $this->getUrl($i) . "\"> {$i} </a></li>";
119:	}
120:	}
121:
122:	}
123:	}
124:
125:	$content = $content . "</ul>";
126:	$countall = $this->datalist->getAllRowsCount();
127:	$show = $currentpage * $this->datalist->getPageSize();
128:	if ($pages == $currentpage) {
129:	$show = $countall;
130:	}
131:	if ($countall <= $this->datalist->getPageSize()) {
132:	$show = $countall;
133:	}
134:
135:
136:	$content = "<table ><tr><td valign='middle'>{$show} строк из {$countall}     </td><td align='right'> {$content}</td></tr></table>";
137:
138:	return $content;
139:	}
140:
141:	/**
142:	* @see Requestable
143:	*/
144:	final public function RequestHandle() {
145:	$p = WebApplication::$app->getRequest()->request_params[$this->id];
146:
147:	if ($this->event != null) {
148:	$this->event->onEvent($this, $p[0]);
149:	}
150:
151:	$this->datalist->setCurrentPage($p[0]);
152:	$this->datalist->Reload(false);
153:	}
154:
155:	/**
156:	* устанавливает обработчик собыиий на переход по страницамю
157:	* в обработчике событий кроме sender передается второй параметр - номер выбраной страницы пагинацтора
158:	* @param EventReceiver $receiver
159:	* @param mixed $handler
160:	*/
161:	public function onPage(EventReceiver $receiver, $handler) {
162:	$this->event = new Event($receiver, $handler);
163:
164:	}
165:
166:	private function getUrl($pageno) {
167:	$url = $this->owner->getURLNode();
168:
169:	if ($this->ajax == true) {
170:	$url .= "::" . $this->id . ":" . $pageno . "&ajax=true";
171:	$onclick = "getUpdate('{$url}');event.returnValue=false; return false;";
172:	} else {
173:	$url .= "::" . $this->id . ":" . $pageno;
174:	$onclick = "window.location='{$url}';event.returnValue=false; return false;";
175:	}
176:
177:	return $onclick;
178:	}
179:
180:	/**
181:	* Сбрасываем в начало
182:	*/
183:	final public function Reset() {
184:	$this->datalist->setCurrentPage(1);
185:	}
186:
187:	/**
188:	* Устанавливает размер пагинатора
189:	*
190:	* @param mixed $maxbuttons
191:	*/
192:	final public function setMaxButtons($maxbuttons) {
193:	if ($maxbuttons > 1) {
194:	$this->maxbuttons = $maxbuttons - 1;
195:	}
196:	}
197:
198:
199:	}
200:

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