API15

JBrowser/isViewable

< API15:JBrowser

The "API15" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.

Description

Determines if a browser can display a given MIME type.


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Syntax

isViewable($mimetype)
Parameter Name Default Value Description
$mimetype $mimetype The MIME type to check.

Returns

boolean True if the browser can display the MIME type.

Defined in

libraries/joomla/environment/browser.php

Importing

jimport( 'joomla.environment.browser' );

Source Body

function isViewable($mimetype)
{
    $mimetype = strtolower($mimetype);
    list($type, $subtype) = explode('/', $mimetype);

    if (!empty($this->_accept)) {
        $wildcard_match = false;

        if (strpos($this->_accept, $mimetype) !== false) {
            return true;
        }

        if (strpos($this->_accept, '*/*') !== false) {
            $wildcard_match = true;
            if ($type != 'image') {
                return true;
            }
         }

        /* image/jpeg and image/pjpeg *appear* to be the same
        * entity, but Mozilla doesn't seem to want to accept the
        * latter.  For our purposes, we will treat them the
        * same.
        */
            if ($this->isBrowser('mozilla') &&
            ($mimetype == 'image/pjpeg') &&
            (strpos($this->_accept, 'image/jpeg') !== false)) {
                return true;
            }

        if (!$wildcard_match) {
            return false;
        }
    }

    if (!$this->hasFeature('images') || ($type != 'image')) {
        return false;
    }

    return (in_array($subtype, $this->_images));
}


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Examples

Code Examples


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