PK"Jm$!cakephp-upload-3.6.3/.buildinfo# Sphinx build info version 1 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done. config: tags: PK"J26 cakephp-upload-3.6.3/objects.inv# Sphinx inventory version 2 # Project: cakephp-upload # Version: 3.0.0 # The remainder of this file is compressed using zlib. xڝRj0+Յ^{KK> %o-XKB}%vm(A"fgfA`-jF7\P4lpUzQ}tѓOw_q2ac5Ou6 o0ZJ} ֣VZm̂Nr(Vgdy$j#tUngK$(*[. 6Y% u}hGpbث V~~=дsV+o_k~K4PK"JS LL"cakephp-upload-3.6.3/contents.html CakePHP Upload

Contents

Introduction

Upload Plugin 3.0

The Upload Plugin is an attempt to sanely upload files using techniques garnered from packages such as MeioUpload , UploadPack and PHP documentation. It uses the excellent Flysystem <http://flysystem.thephpleague.com/> library to handle file uploads, and can be easily integrated with any image library to handle thumbnail extraction to your exact specifications.

Background

Media Plugin is too complicated, and it was a PITA to merge the latest updates into MeioUpload, so here I am, building yet another upload plugin. I’ll build another in a month and call it “YAUP”.

Requirements

  • CakePHP 3.x
  • PHP 5.4+

What does this plugin do?

  • The Upload plugin will transfer files from a form in your application to (by default) the webroot/files directory organised by the model name and upload field name.
  • It can also move files around programatically. Such as from the filesystem.
  • The path to which the files are saved can be customised.
  • The plugin can also upload multiple files at the same time to different fields.
  • Each upload field can be configured independently of each other, such as changing the upload path etc.
  • Uploaded file information can be stored in a data store, such as a MySQL database.
  • You can upload files to both disk as well as distributed datastores such as S3 or Dropbox.
  • It can optionally delete the files on record deletion
  • It offers multiple validation providers but doesn’t validate automatically

This plugin does not do

  • Create thumbnails. You can use a custom Transformer to create modified versions of file uploads.
  • It will not convert files between file types. You cannot use it convert a JPG to a PNG
  • It will not add watermarks to images for you.

Installation

The only officialy supported method of installing this plugin is via composer.

Using Composer

View on Packagist, and copy the json snippet for the latest version into your project’s composer.json.

composer require josegonzalez/cakephp-upload

Enable plugin

You need to enable the plugin your config/bootstrap.php file:

<?php
Plugin::load('Josegonzalez/Upload');

If you are already using Plugin::loadAll();, then this is not necessary.

Behavior configuration options

This is a list of all the available configuration options which can be passed in under each field in your behavior configuration.

  • pathProcessor: Returns a ProcessorInterface class name.

    • Default: (string) Josegonzalez\Upload\File\Path\DefaultProcessor
  • writer: Returns a WriterInterface class name.

    • Default: (string) Josegonzalez\Upload\File\Writer\DefaultWriter
  • transformer: Returns a TransformerInterface class name. Can also be a PHP callable.

    • Default: (string) Josegonzalez\Upload\File\Transformer\DefaultTransformer
  • path: A path relative to the filesystem.root.

    • Default: (string) 'webroot{DS}files{DS}{model}{DS}{field}{DS}'
    • Tokens:
      • {DS}: Replaced by a DIRECTORY_SEPARATOR
      • {model}: Replaced by the Table-alias() method.
      • {table}: Replaced by the Table->table() method.
      • {field}: Replaced by the name of the field which will store the upload filename.
      • {field-value:(w+)}: Replaced by value contained in the current entity in the specified field. As an example, if your path has {field-value:unique_id} and the entity being saved has a value of 4b3403665fea6 for the field unique_id, then {field-value:unique_id} will be replaced with 4b3403665fea6. This replacement can be used multiple times for one or more fields. If the value is not a string or zero-length, a LogicException will be thrown.
      • {primaryKey}: Replaced by the entity primary key, when available. If used on a new record being created, a LogicException will be thrown.
      • {year}: Replaced by date('Y')
      • {month}: Replaced by date('m')
      • {day}: Replaced by date('d')
      • {time}: Replaced by time()
      • {microtime}: Replaced by microtime()
  • fields: An array of fields to use when uploading files

    • Options:
      • fields.dir: (default dir) Field to use for storing the directory
      • fields.type: (default type) Field to use for storing the filetype
      • fields.size: (default size) Field to use for storing the filesize
  • filesystem: An array of configuration info for configuring the writer

    If using the DefaultWriter, the following options are available:

    • Options:
      • filesystem.root: (default ROOT . DS) Directory where files should be written to by default
      • filesystem.adapter: (default Local Flysystem Adapter) A Flysystem-compatible adapter. Can also be a callable that returns an adapter.
  • nameCallback: A callable that can be used by the default pathProcessor to rename a file. Only handles original file naming.

    • Default: NULL
    • Available arguments:
      • array $data: The upload data
      • array $settings: UploadBehavior settings for the current field
    • Return: (string) the new name for the file
  • keepFilesOnDelete: Keep all files when deleting a record.

    • Default: (boolean) true
  • restoreValueOnFailure: Restores original value of the current field when uploaded file has error

    • Defaults: (boolean) true

Validation

By default, no validation rules are loaded or attached to the table. You must explicitly load the validation provider(s) and attach each rule if needed.

Installation

This plugin allows you to only load the validation rules that cover your needs. At this point there are 3 validation providers:

  • UploadValidation: validation rules useful for any upload
  • ImageValidation: validation rules specifically for images
  • DefaultValidation: loads all of the above

Since by default, no validation rules are loaded, you should start with that:

<?php

    $validator->provider('upload', \Josegonzalez\Upload\Validation\UploadValidation::class);
    // OR
    $validator->provider('upload', \Josegonzalez\Upload\Validation\ImageValidation::class);
    // OR
    $validator->provider('upload', \Josegonzalez\Upload\Validation\DefaultValidation::class);

?>

Afterwards, you can use its rules like:

<?php

    $validator->add('file', 'customName', [
        'rule' => 'nameOfTheRule',
        'message' => 'yourErrorMessage',
        'provider' => 'upload'
    ]);

?>

It might come in handy to only use a validation rule when there actually is an uploaded file:

<?php

    $validator->add('file', 'customName', [
        'rule' => 'nameOfTheRule',
        'message' => 'yourErrorMessage',
        'provider' => 'upload',
        'on' => function($context) {
            return !empty($context['data']['file']) && $context['data']['file']['error'] == UPLOAD_ERR_OK;
        }
    ]);

?>

More information on conditional validation can be found here.

UploadValidation

isUnderPhpSizeLimit

Check that the file does not exceed the max file size specified by PHP

<?php

    $validator->add('file', 'fileUnderPhpSizeLimit', [
        'rule' => 'isUnderPhpSizeLimit',
        'message' => 'This file is too large',
        'provider' => 'upload'
    ]);

?>

isUnderFormSizeLimit

Check that the file does not exceed the max file size specified in the HTML Form

<?php

    $validator->add('file', 'fileUnderFormSizeLimit', [
        'rule' => 'isUnderFormSizeLimit',
        'message' => 'This file is too large',
        'provider' => 'upload'
    ]);

?>

isCompletedUpload

Check that the file was completely uploaded

<?php

    $validator->add('file', 'fileCompletedUpload', [
        'rule' => 'isCompletedUpload',
        'message' => 'This file could not be uploaded completely',
        'provider' => 'upload'
    ]);

?>

isFileUpload

Check that a file was uploaded

<?php

    $validator->add('file', 'fileFileUpload', [
        'rule' => 'isFileUpload',
        'message' => 'There was no file found to upload',
        'provider' => 'upload'
    ]);

?>

isSuccessfulWrite

Check that the file was successfully written to the server

<?php

    $validator->add('file', 'fileSuccessfulWrite', [
        'rule' => 'isSuccessfulWrite',
        'message' => 'This upload failed',
        'provider' => 'upload'
    ]);

?>

isBelowMaxSize

Check that the file is below the maximum file upload size (checked in bytes)

<?php

    $validator->add('file', 'fileBelowMaxSize', [
        'rule' => ['isBelowMaxSize', 1024],
        'message' => 'This file is too large',
        'provider' => 'upload'
    ]);

?>

isAboveMinSize

Check that the file is above the minimum file upload size (checked in bytes)

<?php

    $validator->add('file', 'fileAboveMinSize', [
        'rule' => ['isAboveMinSize', 1024],
        'message' => 'This file is too small',
        'provider' => 'upload'
    ]);

?>

ImageValidation

isAboveMinHeight

Check that the file is above the minimum height requirement (checked in pixels)

<?php

    $validator->add('file', 'fileAboveMinHeight', [
        'rule' => ['isAboveMinHeight', 200],
        'message' => 'This image should at least be 200px high',
        'provider' => 'upload'
    ]);

?>

isBelowMaxHeight

Check that the file is below the maximum height requirement (checked in pixels)

<?php

    $validator->add('file', 'fileBelowMaxHeight', [
        'rule' => ['isBelowMaxHeight', 200],
        'message' => 'This image should not be higher than 200px',
        'provider' => 'upload'
    ]);

?>

isAboveMinWidth

Check that the file is above the minimum width requirement (checked in pixels)

<?php

    $validator->add('file', 'fileAboveMinWidth', [
        'rule' => ['isAboveMinWidth', 200],
        'message' => 'This image should at least be 200px wide',
        'provider' => 'upload'
    ]);

?>

isBelowMaxWidth

Check that the file is below the maximum width requirement (checked in pixels)

<?php

    $validator->add('file', 'fileBelowMaxWidth', [
        'rule' => ['isBelowMaxWidth', 200],
        'message' => 'This image should not be wider than 200px',
        'provider' => 'upload'
    ]);

?>

Examples

Basic example

Note: You may want to define the Upload behavior before the core Translate Behavior as they have been known to conflict with each other.
CREATE table users (
    id int(10) unsigned NOT NULL auto_increment,
    username varchar(20) NOT NULL,
    photo varchar(255)
);
<?php
namespace App\Model\Table;
use Cake\ORM\Table;

class UsersTable extends Table
{
    public function initialize(array $config)
    {
        $this->table('users');
        $this->displayField('name');
        $this->primaryKey('id');
        $this->addBehavior('Josegonzalez/Upload.Upload', [
            // You can configure as many upload fields as possible,
            // where the pattern is `field` => `config`
            //
            // Keep in mind that while this plugin does not have any limits in terms of
            // number of files uploaded per request, you should keep this down in order
            // to decrease the ability of your users to block other requests.
            'photo' => []
        ]);
    }
}
?>
<?php echo $this->Form->create('User', ['type' => 'file']); ?>
<?php echo $this->Form->input('User.username'); ?>
<?php echo $this->Form->input('User.photo', ['type' => 'file']); ?>
<?php echo $this->Form->end(); ?>

Using the above setup, uploaded files cannot be deleted. To do so, a field must be added to store the directory of the file as follows:

CREATE table users (
    `id` int(10) unsigned NOT NULL auto_increment,
    `username` varchar(20) NOT NULL,
    `photo` varchar(255) DEFAULT NULL,
    `photo_dir` varchar(255) DEFAULT NULL,
    PRIMARY KEY (`id`)
);
<?php

<?php
namespace App\Model\Table;
use Cake\ORM\Table;

class UsersTable extends Table
{
    public function initialize(array $config)
    {
        $this->table('users');
        $this->displayField('name');
        $this->primaryKey('id');
        $this->addBehavior('Josegonzalez/Upload.Upload', [
            'photo' => [
                'fields' => [
                    // if these fields or their defaults exist
                    // the values will be set.
                    'dir' => 'photo_dir', // defaults to `dir`
                    'size' => 'photo_size', // defaults to `size`
                    'type' => 'photo_type', // defaults to `type`
                ],
            ],
        ]);
    }
}
?>
<?php echo $this->Form->create('User', ['type' => 'file']); ?>
    <?php echo $this->Form->input('User.username'); ?>
    <?php echo $this->Form->input('User.photo', ['type' => 'file']); ?>
    <?php echo $this->Form->input('User.photo_dir', ['type' => 'hidden']); ?>
<?php echo $this->Form->end(); ?>

Upload Plugin Interfaces

For advanced usage of the upload plugin, you will need to implement one or more of the followng interfaces.

ProcessorInterface

Fully-namespaced class name: Josegonzalez\Upload\File\Path\ProcessorInterface

This interface is used to create a class that knows how to build paths for a given file upload. Other than the constructor, it contains two methods:

  • basepath: Returns the basepath for the current field/data combination
  • filename: Returns the filename for the current field/data combination

Refer to Josegonzalez\Upload\File\Path\DefaultProcessor for more details.

TransformerInterface

Fully-namespaced class name: Josegonzalez\Upload\File\Transformer\TransformerInterface

This interface is used to transform the uploaded file into one or more files that will be written somewhere to disk. This can be useful in cases where you may wish to use an external library to extract thumbnails or create PDF previews. The previous image manipulation functionality should be created at this layer.

Other than the constructor, it contains one method:

  • transform: Returns an array of key/value pairs, where the key is a file on disk and the value is the name of the output file. This can be used for properly naming uploaded/created files.

Refer to Josegonzalez\Upload\File\Transformer\DefaultTransformer for more details. You may also wish to look at Josegonzalez\Upload\File\Transformer\SlugTransformer as an alternative.

WriterInterface

Fully-namespaced class name: Josegonzalez\Upload\File\Writer\WriterInterface

This interface is used to actually write files to disk. It writes files to disk using the Flysystem library, and defaults to local storage by default. Implement this interface if you want to customize the file writing process.

Other than the constructor, it contains one methods:

  • write: Writes a set of files to an output.

Refer to Josegonzalez\Upload\File\Writer\DefaultWriter for more details.

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for ( ; i < length; i++ ) { value = callback( elems[ i ], i, arg ); if ( value != null ) { ret.push( value ); } } // Go through every key on the object, } else { for ( i in elems ) { value = callback( elems[ i ], i, arg ); if ( value != null ) { ret.push( value ); } } } // Flatten any nested arrays return concat.apply( [], ret ); }, // A global GUID counter for objects guid: 1, // Bind a function to a context, optionally partially applying any // arguments. proxy: function( fn, context ) { var tmp, args, proxy; if ( typeof context === "string" ) { tmp = fn[ context ]; context = fn; fn = tmp; } // Quick check to determine if target is callable, in the spec // this throws a TypeError, but we will just return undefined. if ( !jQuery.isFunction( fn ) ) { return undefined; } // Simulated bind args = slice.call( arguments, 2 ); proxy = function() { return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); }; // Set the guid of unique handler to the same of original handler, so it can be removed proxy.guid = fn.guid = fn.guid || jQuery.guid++; return proxy; }, now: Date.now, // jQuery.support is not used in Core but other projects attach their // properties to it so it needs to exist. support: support } ); if ( typeof Symbol === "function" ) { jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; } // Populate the class2type map jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), function( i, name ) { class2type[ "[object " + name + "]" ] = name.toLowerCase(); } ); function isArrayLike( obj ) { // Support: real iOS 8.2 only (not reproducible in simulator) // `in` check used to prevent JIT error (gh-2145) // hasOwn isn't used here due to false negatives // regarding Nodelist length in IE var length = !!obj && "length" in obj && obj.length, type = jQuery.type( obj ); if ( type === "function" || jQuery.isWindow( obj ) ) { return false; } return type === "array" || length === 0 || typeof length === "number" && length > 0 && ( length - 1 ) in obj; } var Sizzle = /*! * Sizzle CSS Selector Engine v2.3.0 * https://sizzlejs.com/ * * Copyright jQuery Foundation and other contributors * Released under the MIT license * http://jquery.org/license * * Date: 2016-01-04 */ (function( window ) { var i, support, Expr, getText, isXML, tokenize, compile, select, outermostContext, sortInput, hasDuplicate, // Local document vars setDocument, document, docElem, documentIsHTML, rbuggyQSA, rbuggyMatches, matches, contains, // Instance-specific data expando = "sizzle" + 1 * new Date(), preferredDoc = window.document, dirruns = 0, done = 0, classCache = createCache(), tokenCache = createCache(), compilerCache = createCache(), sortOrder = function( a, b ) { if ( a === b ) { hasDuplicate = true; } return 0; }, // Instance methods hasOwn = ({}).hasOwnProperty, arr = [], pop = arr.pop, push_native = arr.push, push = arr.push, slice = arr.slice, // Use a stripped-down indexOf as it's faster than native // https://jsperf.com/thor-indexof-vs-for/5 indexOf = function( list, elem ) { var i = 0, len = list.length; for ( ; i < len; i++ ) { if ( list[i] === elem ) { return i; } } return -1; }, booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", // Regular expressions // http://www.w3.org/TR/css3-selectors/#whitespace whitespace = "[\\x20\\t\\r\\n\\f]", // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+", // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + // Operator (capture 2) "*([*^$|!~]?=)" + whitespace + // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + "*\\]", pseudos = ":(" + identifier + ")(?:\\((" + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: // 1. quoted (capture 3; capture 4 or capture 5) "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + // 2. simple (capture 6) "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + // 3. anything else (capture 2) ".*" + ")\\)|)", // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter rwhitespace = new RegExp( whitespace + "+", "g" ), rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), rpseudo = new RegExp( pseudos ), ridentifier = new RegExp( "^" + identifier + "$" ), matchExpr = { "ID": new RegExp( "^#(" + identifier + ")" ), "CLASS": new RegExp( "^\\.(" + identifier + ")" ), "TAG": new RegExp( "^(" + identifier + "|[*])" ), "ATTR": new RegExp( "^" + attributes ), "PSEUDO": new RegExp( "^" + pseudos ), "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), // For use in libraries implementing .is() // We use this for POS matching in `select` "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) }, rinputs = /^(?:input|select|textarea|button)$/i, rheader = /^h\d$/i, rnative = /^[^{]+\{\s*\[native \w/, // Easily-parseable/retrievable ID or TAG or CLASS selectors rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, rsibling = /[+~]/, // CSS escapes // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), funescape = function( _, escaped, escapedWhitespace ) { var high = "0x" + escaped - 0x10000; // NaN means non-codepoint // Support: Firefox<24 // Workaround erroneous numeric interpretation of +"0x" return high !== high || escapedWhitespace ? escaped : high < 0 ? // BMP codepoint String.fromCharCode( high + 0x10000 ) : // Supplemental Plane codepoint (surrogate pair) String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); }, // CSS string/identifier serialization // https://drafts.csswg.org/cssom/#common-serializing-idioms rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\x80-\uFFFF\w-]/g, fcssescape = function( ch, asCodePoint ) { if ( asCodePoint ) { // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER if ( ch === "\0" ) { return "\uFFFD"; } // Control characters and (dependent upon position) numbers get escaped as code points return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; } // Other potentially-special ASCII characters get backslash-escaped return "\\" + ch; }, // Used for iframes // See setDocument() // Removing the function wrapper causes a "Permission Denied" // error in IE unloadHandler = function() { setDocument(); }, disabledAncestor = addCombinator( function( elem ) { return elem.disabled === true; }, { dir: "parentNode", next: "legend" } ); // Optimize for push.apply( _, NodeList ) try { push.apply( (arr = slice.call( preferredDoc.childNodes )), preferredDoc.childNodes ); // Support: Android<4.0 // Detect silently failing push.apply arr[ preferredDoc.childNodes.length ].nodeType; } catch ( e ) { push = { apply: arr.length ? // Leverage slice if possible function( target, els ) { push_native.apply( target, slice.call(els) ); } : // Support: IE<9 // Otherwise append directly function( target, els ) { var j = target.length, i = 0; // Can't trust NodeList.length while ( (target[j++] = els[i++]) ) {} target.length = j - 1; } }; } function Sizzle( selector, context, results, seed ) { var m, i, elem, nid, match, groups, newSelector, newContext = context && context.ownerDocument, // nodeType defaults to 9, since context defaults to document nodeType = context ? context.nodeType : 9; results = results || []; // Return early from calls with invalid selector or context if ( typeof selector !== "string" || !selector || nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { return results; } // Try to shortcut find operations (as opposed to filters) in HTML documents if ( !seed ) { if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { setDocument( context ); } context = context || document; if ( documentIsHTML ) { // If the selector is sufficiently simple, try using a "get*By*" DOM method // (excepting DocumentFragment context, where the methods don't exist) if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { // ID selector if ( (m = match[1]) ) { // Document context if ( nodeType === 9 ) { if ( (elem = context.getElementById( m )) ) { // Support: IE, Opera, Webkit // TODO: identify versions // getElementById can match elements by name instead of ID if ( elem.id === m ) { results.push( elem ); return results; } } else { return results; } // Element context } else { // Support: IE, Opera, Webkit // TODO: identify versions // getElementById can match elements by name instead of ID if ( newContext && (elem = newContext.getElementById( m )) && contains( context, elem ) && elem.id === m ) { results.push( elem ); return results; } } // Type selector } else if ( match[2] ) { push.apply( results, context.getElementsByTagName( selector ) ); return results; // Class selector } else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) { push.apply( results, context.getElementsByClassName( m ) ); return results; } } // Take advantage of querySelectorAll if ( support.qsa && !compilerCache[ selector + " " ] && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { if ( nodeType !== 1 ) { newContext = context; newSelector = selector; // qSA looks outside Element context, which is not what we want // Thanks to Andrew Dupont for this workaround technique // Support: IE <=8 // Exclude object elements } else if ( context.nodeName.toLowerCase() !== "object" ) { // Capture the context ID, setting it first if necessary if ( (nid = context.getAttribute( "id" )) ) { nid = nid.replace( rcssescape, fcssescape ); } else { context.setAttribute( "id", (nid = expando) ); } // Prefix every selector in the list groups = tokenize( selector ); i = groups.length; while ( i-- ) { groups[i] = "#" + nid + " " + toSelector( groups[i] ); } newSelector = groups.join( "," ); // Expand context for sibling selectors newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context; } if ( newSelector ) { try { push.apply( results, newContext.querySelectorAll( newSelector ) ); return results; } catch ( qsaError ) { } finally { if ( nid === expando ) { context.removeAttribute( "id" ); } } } } } } // All others return select( selector.replace( rtrim, "$1" ), context, results, seed ); } /** * Create key-value caches of limited size * @returns {function(string, object)} Returns the Object data after storing it on itself with * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) * deleting the oldest entry */ function createCache() { var keys = []; function cache( key, value ) { // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) if ( keys.push( key + " " ) > Expr.cacheLength ) { // Only keep the most recent entries delete cache[ keys.shift() ]; } return (cache[ key + " " ] = value); } return cache; } /** * Mark a function for special use by Sizzle * @param {Function} fn The function to mark */ function markFunction( fn ) { fn[ expando ] = true; return fn; } /** * Support testing using an element * @param {Function} fn Passed the created element and returns a boolean result */ function assert( fn ) { var el = document.createElement("fieldset"); try { return !!fn( el ); } catch (e) { return false; } finally { // Remove from its parent by default if ( el.parentNode ) { el.parentNode.removeChild( el ); } // release memory in IE el = null; } } /** * Adds the same handler for all of the specified attrs * @param {String} attrs Pipe-separated list of attributes * @param {Function} handler The method that will be applied */ function addHandle( attrs, handler ) { var arr = attrs.split("|"), i = arr.length; while ( i-- ) { Expr.attrHandle[ arr[i] ] = handler; } } /** * Checks document order of two siblings * @param {Element} a * @param {Element} b * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b */ function siblingCheck( a, b ) { var cur = b && a, diff = cur && a.nodeType === 1 && b.nodeType === 1 && a.sourceIndex - b.sourceIndex; // Use IE sourceIndex if available on both nodes if ( diff ) { return diff; } // Check if b follows a if ( cur ) { while ( (cur = cur.nextSibling) ) { if ( cur === b ) { return -1; } } } return a ? 1 : -1; } /** * Returns a function to use in pseudos for input types * @param {String} type */ function createInputPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); return name === "input" && elem.type === type; }; } /** * Returns a function to use in pseudos for buttons * @param {String} type */ function createButtonPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); return (name === "input" || name === "button") && elem.type === type; }; } /** * Returns a function to use in pseudos for :enabled/:disabled * @param {Boolean} disabled true for :disabled; false for :enabled */ function createDisabledPseudo( disabled ) { // Known :disabled false positives: // IE: *[disabled]:not(button, input, select, textarea, optgroup, option, menuitem, fieldset) // not IE: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable return function( elem ) { // Check form elements and option elements for explicit disabling return "label" in elem && elem.disabled === disabled || "form" in elem && elem.disabled === disabled || // Check non-disabled form elements for fieldset[disabled] ancestors "form" in elem && elem.disabled === false && ( // Support: IE6-11+ // Ancestry is covered for us elem.isDisabled === disabled || // Otherwise, assume any non-