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@@ -0,0 +1,380 @@
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+<?php
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+
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+/**
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+ * This class is an experiment for the job of correctly detecting browsers and settings
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+ * needed for them.
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+ * - Detects the following browsers
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+ * - Opera, Webkit, Firefox, Web_tv, Konqueror, IE, Gecko
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+ * - Webkit variants: Chrome, iphone, blackberry, android, safari, ipad, ipod
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+ * - Opera Versions: 6, 7, 8, 9, 10 and mobile mini and mobi
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+ * - Firefox Versions: 1, 2, 3 .... 11 ...
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+ * - Chrome Versions: 1 ... 18 ...
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+ * - IE Versions: 4, 5, 5.5, 6, 7, 8, 9, 10 mobile and Mac
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+ * - Nokia
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+ */
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+
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+if (!defined('SMF'))
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+ die('Hacking attempt...');
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+
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+class browser_detector
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+{
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+ /**
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+ * Holds all browsers information. Its contents will be placed into $context['browser'].
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+ *
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+ * @var array
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+ */
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+ private $_browsers = null;
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+ private $_is_mobile = null;
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+
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+ /**
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+ * The main method of this class, you know the one that does the job: detect the thing.
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+ * - determines the user agent (browser) as best it can.
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+ */
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+ function detectBrowser()
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+ {
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+ global $context, $user_info;
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+
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+ // Init
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+ $this->_browsers = array();
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+ $this->_is_mobile = false;
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+
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+ // Initialize some values we'll set differently if necessary...
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+ $this->_browsers['needs_size_fix'] = false;
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+
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+ // One at a time, one at a time, and in this order too
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+ if ($this->isOpera())
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+ $this->setupOpera();
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+ // Them webkits need to be set up too
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+ elseif ($this->isWebkit())
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+ $this->setupWebkit();
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+ // We may have work to do on Firefox...
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+ elseif ($this->isFirefox())
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+ $this->setupFirefox();
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+ // Old friend, old frenemy
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+ elseif ($this->isIe())
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+ $this->setupIe();
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+
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+ // Just a few mobile checks
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+ $this->isOperaMini();
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+ $this->isOperaMobi();
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+
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+ // Be you robot or human?
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+ if ($user_info['possibly_robot'])
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+ {
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+ // This isn't meant to be reliable, it's just meant to catch most bots to prevent PHPSESSID from showing up.
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+ $this->_browsers['possibly_robot'] = !empty($user_info['possibly_robot']);
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+
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+ // Robots shouldn't be logging in or registering. So, they aren't a bot. Better to be wrong than sorry (or people won't be able to log in!), anyway.
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+ if ((isset($_REQUEST['action']) && in_array($_REQUEST['action'], array('login', 'login2', 'register'))) || !$user_info['is_guest'])
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+ $this->_browsers['possibly_robot'] = false;
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+ }
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+ else
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+ $this->_browsers['possibly_robot'] = false;
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+
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+ // Fill out the historical array as needed to support old mods that don't use isBrowser
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+ $this->fillInformation();
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+
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+ // Last step ...
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+ $this->setupBrowserPriority();
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+
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+ // Now see what you've done!
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+ $context['browser'] = $this->_browsers;
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+ }
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+
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+ /**
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+ * Determine if the browser is Opera or not
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+ * @return boolean true if the browser is Opera otherwise false
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+ */
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+ function isOpera()
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+ {
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+ if (!isset($this->_browsers['is_opera']))
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+ $this->_browsers['is_opera'] = strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== false;
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+ return $this->_browsers['is_opera'];
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+ }
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+
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+ /**
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+ * Determine if the browser is IE or not
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+ * @return boolean true if the browser is IE otherwise false
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+ */
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+ function isIe()
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+ {
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+ // I'm IE, Yes I'm the real IE; All you other IEs are just imitating.
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+ if (!isset($this->_browsers['is_ie']))
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+ $this->_browsers['is_ie'] = !$this->isOpera() && !$this->isGecko() && !$this->isWebTv() && preg_match('~MSIE \d+~', $_SERVER['HTTP_USER_AGENT']) === 1;
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+ return $this->_browsers['is_ie'];
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+ }
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+
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+ /**
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+ * Determine if the browser is a Webkit based one or not
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+ * @return boolean true if the browser is Webkit based otherwise false
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+ */
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+ function isWebkit()
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+ {
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+ if (!isset($this->_browsers['is_webkit']))
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+ $this->_browsers['is_webkit'] = strpos($_SERVER['HTTP_USER_AGENT'], 'AppleWebKit') !== false;
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+ return $this->_browsers['is_webkit'];
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+ }
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+
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+ /**
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+ * Determine if the browser is Firefox or one of its variants
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+ * @return boolean true if the browser is Firefox otherwise false
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+ */
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+ function isFirefox()
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+ {
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+ if (!isset($this->_browsers['is_firefox']))
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+ $this->_browsers['is_firefox'] = preg_match('~(?:Firefox|Ice[wW]easel|IceCat|Shiretoko|Minefield)/~', $_SERVER['HTTP_USER_AGENT']) === 1;
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+ return $this->_browsers['is_firefox'];
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+ }
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+
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+ /**
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+ * Determine if the browser is WebTv or not
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+ * @return boolean true if the browser is WebTv otherwise false
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+ */
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+ function isWebTv()
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+ {
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+ if (!isset($this->_browsers['is_web_tv']))
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+ $this->_browsers['is_web_tv'] = strpos($_SERVER['HTTP_USER_AGENT'], 'WebTV') !== false;
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+ return $this->_browsers['is_web_tv'];
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+ }
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+
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+ /**
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+ * Determine if the browser is konqueror or not
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+ * @return boolean true if the browser is konqueror otherwise false
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+ */
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+ function isKonqueror()
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+ {
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+ if (!isset($this->_browsers['is_konqueror']))
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+ $this->_browsers['is_konqueror'] = strpos($_SERVER['HTTP_USER_AGENT'], 'Konqueror') !== false;
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+ return $this->_browsers['is_konqueror'];
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+ }
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+
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+ /**
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+ * Determine if the browser is Gecko or not
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+ * @return boolean true if the browser is Gecko otherwise false
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+ */
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+ function isGecko()
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+ {
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+ if (!isset($this->_browsers['is_gecko']))
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+ $this->_browsers['is_gecko'] = strpos($_SERVER['HTTP_USER_AGENT'], 'Gecko') !== false && !$this->isWebkit() && !$this->isKonqueror();
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+ return $this->_browsers['is_gecko'];
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+ }
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+
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+ /**
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+ * Determine if the browser is OperaMini or not
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+ * @return boolean true if the browser is OperaMini otherwise false
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+ */
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+ function isOperaMini()
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+ {
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+ if (!isset($this->_browsers['is_opera_mini']))
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+ $this->_browsers['is_opera_mini'] = (isset($_SERVER['HTTP_X_OPERAMINI_PHONE_UA']) || stripos($_SERVER['HTTP_USER_AGENT'], 'opera mini') !== false);
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+ if ($this->_browsers['is_opera_mini'])
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+ $this->_is_mobile = true;
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+ return $this->_browsers['is_opera_mini'];
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+ }
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+
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+ /**
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+ * Determine if the browser is OperaMobi or not
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+ * @return boolean true if the browser is OperaMobi otherwise false
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+ */
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+ function isOperaMobi()
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+ {
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+ if (!isset($this->_browsers['is_opera_mobi']))
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+ $this->_browsers['is_opera_mobi'] = stripos($_SERVER['HTTP_USER_AGENT'], 'opera mobi') !== false;
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+ if ($this->_browsers['is_opera_mobi'])
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+ $this->_is_mobile = true;
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+ return $this->_browsers['is_opera_mini'];
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+ }
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+
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+ /**
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+ * Detect Safari / Chrome / iP[ao]d / iPhone / Android / Blackberry from webkit.
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+ * - set the browser version for Safari and Chrome
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+ * - set the mobile flag for mobile based useragents
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+ */
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+ private function setupWebkit()
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+ {
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+ $this->_browsers += array(
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+ 'is_chrome' => strpos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== false,
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+ 'is_iphone' => (strpos($_SERVER['HTTP_USER_AGENT'], 'iPhone') !== false || strpos($_SERVER['HTTP_USER_AGENT'], 'iPod') !== false) && strpos($_SERVER['HTTP_USER_AGENT'], 'iPad') === false,
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+ 'is_blackberry' => stripos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') !== false || strpos($_SERVER['HTTP_USER_AGENT'], 'PlayBook') !== false,
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+ 'is_android' => strpos($_SERVER['HTTP_USER_AGENT'], 'Android') !== false,
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+ 'is_nokia' => strpos($_SERVER['HTTP_USER_AGENT'], 'SymbianOS') !== false,
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+ );
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+
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+ // blackberry, playbook, iphone, nokia, android and ipods set a mobile flag
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+ if ($this->_browsers['is_iphone'] || $this->_browsers['is_blackberry'] || $this->_browsers['is_android'] || $this->_browsers['is_nokia'])
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+ $this->_is_mobile = true;
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+
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+ // @todo what to do with the blaPad? ... for now leave it detected as Safari ...
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+ $this->_browsers['is_safari'] = strpos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false && !$this->_browsers['is_chrome'] && !$this->_browsers['is_iphone'];
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+ $this->_browsers['is_ipad'] = strpos($_SERVER['HTTP_USER_AGENT'], 'iPad') !== false;
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+
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+ // if Chrome, get the major version
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+ if ($this->_browsers['is_chrome'])
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+ {
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+ if (preg_match('~chrome[/]([0-9][0-9]?[.])~i', $_SERVER['HTTP_USER_AGENT'], $match) === 1)
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+ $this->_browsers['is_chrome' . (int) $match[1]] = true;
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+ }
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+
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+ // or if Safari get its major version
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+ if ($this->_browsers['is_safari'])
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+ {
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+ if (preg_match('~version/?(.*)safari.*~i', $_SERVER['HTTP_USER_AGENT'], $match) === 1)
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+ $this->_browsers['is_safari' . (int) trim($match[1])] = true;
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+ }
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+ }
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+
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+ /**
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+ * Additional IE checks and settings.
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+ * - determines the version of the IE browser in use
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+ * - detects ie4 onward
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+ * - attempts to distinguish between IE and IE in compatabilty view
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+ * - checks for old IE on macs as well, since we can
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+ */
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+ private function setupIe()
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+ {
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+ $this->_browsers['is_ie_compat_view'] = false;
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+
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+ // get the version of the browser from the msie tag
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+ if (preg_match('~MSIE\s?([0-9][0-9]?.[0-9])~i', $_SERVER['HTTP_USER_AGENT'], $msie_match) === 1)
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+ {
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+ $msie_match[1] = trim($msie_match[1]);
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+ $msie_match[1] = (($msie_match[1] - (int) $msie_match[1]) == 0) ? (int) $msie_match[1] : $msie_match[1];
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+ $this->_browsers['is_ie' . $msie_match[1]] = true;
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+ }
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+
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+ // "modern" ie uses trident 4=ie8, 5=ie9, 6=ie10, even in compatability view
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+ if (preg_match('~Trident/([0-9.])~i', $_SERVER['HTTP_USER_AGENT'], $trident_match) === 1)
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+ {
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+ $this->_browsers['is_ie' . ((int) $trident_match[1] + 4)] = true;
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+
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+ // If trident is set, see the (if any) msie tag in the user agent matches ... if not its in some compatablity view
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+ if (isset($msie_match[1]) && ($msie_match[1] < $trident_match[1] + 4))
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+ $this->_browsers['is_ie_compat_view'] = true;
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+ }
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+
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+ // Detect true IE6 and IE7 and not IE in compat mode.
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+ $this->_browsers['is_ie7'] = !empty($this->_browsers['is_ie7']) && ($this->_browsers['is_ie_compat_view'] === false);
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+ $this->_browsers['is_ie6'] = !empty($this->_browsers['is_ie6']) && ($this->_browsers['is_ie_compat_view'] === false);
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+
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+ // IE mobile 7 or 9, ... shucks why not
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+ if ((!empty($this->_browsers['is_ie7']) && strpos($_SERVER['HTTP_USER_AGENT'], 'IEMobile/7') !== false) || (!empty($this->_browsers['is_ie9']) && strpos($_SERVER['HTTP_USER_AGENT'], 'IEMobile/9') !== false))
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+ {
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+ $this->_browsers['is_ie_mobi'] = true;
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+ $this->_is_mobile = true;
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+ }
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+
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+ // And some throwbacks to a bygone era, deposited here like cholesterol in your arteries
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+ $this->_browsers += array(
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+ 'is_ie4' => !empty($this->_browsers['is_ie4']) && !$this->_browsers['is_web_tv'],
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+ 'is_mac_ie' => strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 5.') !== false && strpos($_SERVER['HTTP_USER_AGENT'], 'Mac') !== false
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+ );
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+
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+ // Before IE8 we need to fix IE... lots!
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+ $this->_browsers['ie_standards_fix'] = (($this->_browsers['is_ie6'] === true) || ($this->_browsers['is_ie7'] === true)) ? true : false;
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+
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+ // We may even need a size fix...
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+ $this->_browsers['needs_size_fix'] = (!empty($this->_browsers['is_ie5']) || !empty($this->_browsers['is_ie5.5']) || !empty($this->_browsers['is_ie4'])) && !$this->_browsers['is_mac_ie'];
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+ }
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+
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+ /**
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+ * Additional firefox checks.
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+ * - Gets the version of the FF browser in use
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+ * - Considers all FF variants as FF including IceWeasel, IceCat, Shiretoko and Minefiled
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+ */
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+ private function setupFirefox()
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+ {
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+ if (preg_match('~(?:Firefox|Ice[wW]easel|IceCat|Shiretoko|Minefield)[\/ \(]([^ ;\)]+)~', $_SERVER['HTTP_USER_AGENT'], $match) === 1)
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+ $this->_browsers['is_firefox' . (int) $match[1]] = true;
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+ }
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+
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+ /**
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+ * More Opera checks if we are opera.
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+ * - checks for the version of Opera in use
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+ * - uses checks for 10 first and falls through to <9
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+ */
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+ private function setupOpera()
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+ {
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+ // Opera 10+ uses the version tag at the end of the string
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+ if (preg_match('~\sVersion/([0-9]+)\.[0-9]+(?:\s*|$)~', $_SERVER['HTTP_USER_AGENT'], $match))
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+ $this->_browsers['is_opera' . (int) $match[1]] = true;
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+ // Opera pre 10 is supposed to uses the Opera tag alone, as do some spoofers
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+ elseif (preg_match('~Opera[ /]([0-9]+)(?!\\.[89])~', $_SERVER['HTTP_USER_AGENT'], $match))
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+ $this->_browsers['is_opera' . (int) $match[1]] = true;
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+
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+ // Needs size fix?
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+ $this->_browsers['needs_size_fix'] = !empty($this->_browsers['is_opera6']);
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+ }
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+
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+ /**
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+ * Get the browser name that we will use in the <body id="this_browser">
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+ * - The order of each browser in $browser_priority is important
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+ * - if you want to have id='ie6' and not id='ie' then it must appear first in the list of ie browsers
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+ * - only sets browsers that may need some help via css for compatablity
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+ */
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+ private function setupBrowserPriority()
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+ {
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+ global $context;
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+
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+ if ($this->_is_mobile)
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+ $context['browser_body_id'] = 'mobile';
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+ else
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+ {
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+ $browser_priority = array(
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+ 'is_ie6' => 'ie6',
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+ 'is_ie7' => 'ie7',
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+ 'is_ie' => 'ie',
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+ 'is_firefox3' => 'firefox3',
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+ 'is_firefox4' => 'firefox4',
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+ 'is_firefox' => 'firefox',
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+ 'is_chrome' => 'chrome',
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+ 'is_safari' => 'safari',
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+ 'is_opera8' => 'opera8',
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+ 'is_opera9' => 'opera9',
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+ 'is_opera10' => 'opera10',
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+ 'is_konqueror' => 'konqueror',
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+ );
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+
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+ $context['browser_body_id'] = 'smf';
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+ $active = array_reverse(array_keys($this->_browsers, true));
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+ foreach ($active as $key => $browser)
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+ {
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+ if (array_key_exists($browser, $browser_priority))
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+ {
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+ $context['browser_body_id'] = $browser_priority[$browser];
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+ break;
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+ }
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+ }
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+ }
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+ }
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+
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+ /**
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+ * Fill out the historical array
|
|
|
+ * - needed to support old mods that don't use isBrowser
|
|
|
+ */
|
|
|
+ function fillInformation()
|
|
|
+ {
|
|
|
+ $this->_browsers += array(
|
|
|
+ 'is_webkit' => false,
|
|
|
+ 'is_opera6' => false,
|
|
|
+ 'is_opera7' => false,
|
|
|
+ 'is_opera8' => false,
|
|
|
+ 'is_opera9' => false,
|
|
|
+ 'is_opera10' => false,
|
|
|
+ 'is_ie4' => false,
|
|
|
+ 'is_mac_ie' => false,
|
|
|
+ 'is_firefox1' => false,
|
|
|
+ 'is_firefox2' => false,
|
|
|
+ 'is_firefox3' => false,
|
|
|
+ 'is_iphone' => false,
|
|
|
+ 'is_android' => false,
|
|
|
+ 'is_chrome' => false,
|
|
|
+ 'is_safari' => false,
|
|
|
+ 'is_ie8' => false,
|
|
|
+ 'is_ie7' => false,
|
|
|
+ 'is_ie6' => false,
|
|
|
+ 'is_ie5.5' => false,
|
|
|
+ 'is_ie5' => false,
|
|
|
+ 'ie_standards_fix' => false,
|
|
|
+ );
|
|
|
+ }
|
|
|
+}
|
Spuds