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/home/tahkoom/public_html/wp-includes/js/plupload/wp-plupload.js
/* global pluploadL10n, plupload, _wpPluploadSettings */
/**
* @namespace wp
*/
window.wp = window.wp || {};
( function( exports, $ ) {
var Uploader;
if ( typeof _wpPluploadSettings === 'undefined' ) {
return;
}
/**
* A WordPress uploader.
*
* The Plupload library provides cross-browser uploader UI integration.
* This object bridges the Plupload API to integrate uploads into the
* WordPress back end and the WordPress media experience.
*
* @class
* @memberOf wp
* @alias wp.Uploader
*
* @param {object} options The options passed to the new plupload instance.
* @param {object} options.container The id of uploader container.
* @param {object} options.browser The id of button to trigger the file select.
* @param {object} options.dropzone The id of file drop target.
* @param {object} options.plupload An object of parameters to pass to the plupload instance.
* @param {object} options.params An object of parameters to pass to $_POST when uploading the file.
* Extends this.plupload.multipart_params under the hood.
*/
Uploader = function( options ) {
var self = this,
isIE, // Not used, back-compat.
elements = {
container: 'container',
browser: 'browse_button',
dropzone: 'drop_element'
},
tryAgainCount = {},
tryAgain,
key,
error,
fileUploaded;
this.supports = {
upload: Uploader.browser.supported
};
this.supported = this.supports.upload;
if ( ! this.supported ) {
return;
}
// Arguments to send to pluplad.Uploader().
// Use deep extend to ensure that multipart_params and other objects are cloned.
this.plupload = $.extend( true, { multipart_params: {} }, Uploader.defaults );
this.container = document.body; // Set default container.
/*
* Extend the instance with options.
*
* Use deep extend to allow options.plupload to override individual
* default plupload keys.
*/
$.extend( true, this, options );
// Proxy all methods so this always refers to the current instance.
for ( key in this ) {
if ( typeof this[ key ] === 'function' ) {
this[ key ] = $.proxy( this[ key ], this );
}
}
// Ensure all elements are jQuery elements and have id attributes,
// then set the proper plupload arguments to the ids.
for ( key in elements ) {
if ( ! this[ key ] ) {
continue;
}
this[ key ] = $( this[ key ] ).first();
if ( ! this[ key ].length ) {
delete this[ key ];
continue;
}
if ( ! this[ key ].prop('id') ) {
this[ key ].prop( 'id', '__wp-uploader-id-' + Uploader.uuid++ );
}
this.plupload[ elements[ key ] ] = this[ key ].prop('id');
}
// If the uploader has neither a browse button nor a dropzone, bail.
if ( ! ( this.browser && this.browser.length ) && ! ( this.dropzone && this.dropzone.length ) ) {
return;
}
// Initialize the plupload instance.
this.uploader = new plupload.Uploader( this.plupload );
delete this.plupload;
// Set default params and remove this.params alias.
this.param( this.params || {} );
delete this.params;
/**
* Attempt to create image sub-sizes when an image was uploaded successfully
* but the server responded with HTTP 5xx error.
*
* @since 5.3.0
*
* @param {string} message Error message.
* @param {object} data Error data from Plupload.
* @param {plupload.File} file File that was uploaded.
*/
tryAgain = function( message, data, file ) {
var times, id;
if ( ! data || ! data.responseHeaders ) {
error( pluploadL10n.http_error_image, data, file, 'no-retry' );
return;
}
id = data.responseHeaders.match( /x-wp-upload-attachment-id:\s*(\d+)/i );
if ( id && id[1] ) {
id = id[1];
} else {
error( pluploadL10n.http_error_image, data, file, 'no-retry' );
return;
}
times = tryAgainCount[ file.id ];
if ( times && times > 4 ) {
/*
* The file may have been uploaded and attachment post created,
* but post-processing and resizing failed...
* Do a cleanup then tell the user to scale down the image and upload it again.
*/
$.ajax({
type: 'post',
url: ajaxurl,
dataType: 'json',
data: {
action: 'media-create-image-subsizes',
_wpnonce: _wpPluploadSettings.defaults.multipart_params._wpnonce,
attachment_id: id,
_wp_upload_failed_cleanup: true,
}
});
error( message, data, file, 'no-retry' );
return;
}
if ( ! times ) {
tryAgainCount[ file.id ] = 1;
} else {
tryAgainCount[ file.id ] = ++times;
}
// Another request to try to create the missing image sub-sizes.
$.ajax({
type: 'post',
url: ajaxurl,
dataType: 'json',
data: {
action: 'media-create-image-subsizes',
_wpnonce: _wpPluploadSettings.defaults.multipart_params._wpnonce,
attachment_id: id,
}
}).done( function( response ) {
if ( response.success ) {
fileUploaded( self.uploader, file, response );
} else {
if ( response.data && response.data.message ) {
message = response.data.message;
}
error( message, data, file, 'no-retry' );
}
}).fail( function( jqXHR ) {
// If another HTTP 5xx error, try try again...
if ( jqXHR.status >= 500 && jqXHR.status < 600 ) {
tryAgain( message, data, file );
return;
}
error( message, data, file, 'no-retry' );
});
}
/**
* Custom error callback.
*
* Add a new error to the errors collection, so other modules can track
* and display errors. @see wp.Uploader.errors.
*
* @param {string} message Error message.
* @param {object} data Error data from Plupload.
* @param {plupload.File} file File that was uploaded.
* @param {string} retry Whether to try again to create image sub-sizes. Passing 'no-retry' will prevent it.
*/
error = function( message, data, file, retry ) {
var isImage = file.type && file.type.indexOf( 'image/' ) === 0,
status = data && data.status;
// If the file is an image and the error is HTTP 5xx try to create sub-sizes again.
if ( retry !== 'no-retry' && isImage && status >= 500 && status < 600 ) {
tryAgain( message, data, file );
return;
}
if ( file.attachment ) {
file.attachment.destroy();
}
Uploader.errors.unshift({
message: message || pluploadL10n.default_error,
data: data,
file: file
});
self.error( message, data, file );
};
/**
* After a file is successfully uploaded, update its model.
*
* @param {plupload.Uploader} up Uploader instance.
* @param {plupload.File} file File that was uploaded.
* @param {Object} response Object with response properties.
*/
fileUploaded = function( up, file, response ) {
var complete;
// Remove the "uploading" UI elements.
_.each( ['file','loaded','size','percent'], function( key ) {
file.attachment.unset( key );
} );
file.attachment.set( _.extend( response.data, { uploading: false } ) );
wp.media.model.Attachment.get( response.data.id, file.attachment );
complete = Uploader.queue.all( function( attachment ) {
return ! attachment.get( 'uploading' );
});
if ( complete ) {
Uploader.queue.reset();
}
self.success( file.attachment );
}
/**
* After the Uploader has been initialized, initialize some behaviors for the dropzone.
*
* @param {plupload.Uploader} uploader Uploader instance.
*/
this.uploader.bind( 'init', function( uploader ) {
var timer, active, dragdrop,
dropzone = self.dropzone;
dragdrop = self.supports.dragdrop = uploader.features.dragdrop && ! Uploader.browser.mobile;
// Generate drag/drop helper classes.
if ( ! dropzone ) {
return;
}
dropzone.toggleClass( 'supports-drag-drop', !! dragdrop );
if ( ! dragdrop ) {
return dropzone.unbind('.wp-uploader');
}
// 'dragenter' doesn't fire correctly, simulate it with a limited 'dragover'.
dropzone.on( 'dragover.wp-uploader', function() {
if ( timer ) {
clearTimeout( timer );
}
if ( active ) {
return;
}
dropzone.trigger('dropzone:enter').addClass('drag-over');
active = true;
});
dropzone.on('dragleave.wp-uploader, drop.wp-uploader', function() {
/*
* Using an instant timer prevents the drag-over class
* from being quickly removed and re-added when elements
* inside the dropzone are repositioned.
*
* @see https://core.trac.wordpress.org/ticket/21705
*/
timer = setTimeout( function() {
active = false;
dropzone.trigger('dropzone:leave').removeClass('drag-over');
}, 0 );
});
self.ready = true;
$(self).trigger( 'uploader:ready' );
});
this.uploader.bind( 'postinit', function( up ) {
up.refresh();
self.init();
});
this.uploader.init();
if ( this.browser ) {
this.browser.on( 'mouseenter', this.refresh );
} else {
this.uploader.disableBrowse( true );
}
$( self ).on( 'uploader:ready', function() {
$( '.moxie-shim-html5 input[type="file"]' )
.attr( {
tabIndex: '-1',
'aria-hidden': 'true'
} );
} );
/**
* After files were filtered and added to the queue, create a model for each.
*
* @param {plupload.Uploader} up Uploader instance.
* @param {Array} files Array of file objects that were added to queue by the user.
*/
this.uploader.bind( 'FilesAdded', function( up, files ) {
_.each( files, function( file ) {
var attributes, image;
// Ignore failed uploads.
if ( plupload.FAILED === file.status ) {
return;
}
if ( file.type === 'image/heic' && up.settings.heic_upload_error ) {
// Show error but do not block uploading.
Uploader.errors.unshift({
message: pluploadL10n.unsupported_image,
data: {},
file: file
});
} else if ( file.type === 'image/webp' && up.settings.webp_upload_error ) {
// Disallow uploading of WebP images if the server cannot edit them.
error( pluploadL10n.noneditable_image, {}, file, 'no-retry' );
up.removeFile( file );
return;
} else if ( file.type === 'image/avif' && up.settings.avif_upload_error ) {
// Disallow uploading of AVIF images if the server cannot edit them.
error( pluploadL10n.noneditable_image, {}, file, 'no-retry' );
up.removeFile( file );
return;
}
// Generate attributes for a new `Attachment` model.
attributes = _.extend({
file: file,
uploading: true,
date: new Date(),
filename: file.name,
menuOrder: 0,
uploadedTo: wp.media.model.settings.post.id
}, _.pick( file, 'loaded', 'size', 'percent' ) );
// Handle early mime type scanning for images.
image = /(?:jpe?g|png|gif)$/i.exec( file.name );
// For images set the model's type and subtype attributes.
if ( image ) {
attributes.type = 'image';
// `jpeg`, `png` and `gif` are valid subtypes.
// `jpg` is not, so map it to `jpeg`.
attributes.subtype = ( 'jpg' === image[0] ) ? 'jpeg' : image[0];
}
// Create a model for the attachment, and add it to the Upload queue collection
// so listeners to the upload queue can track and display upload progress.
file.attachment = wp.media.model.Attachment.create( attributes );
Uploader.queue.add( file.attachment );
self.added( file.attachment );
});
up.refresh();
up.start();
});
this.uploader.bind( 'UploadProgress', function( up, file ) {
file.attachment.set( _.pick( file, 'loaded', 'percent' ) );
self.progress( file.attachment );
});
/**
* After a file is successfully uploaded, update its model.
*
* @param {plupload.Uploader} up Uploader instance.
* @param {plupload.File} file File that was uploaded.
* @param {Object} response Object with response properties.
* @return {mixed}
*/
this.uploader.bind( 'FileUploaded', function( up, file, response ) {
try {
response = JSON.parse( response.response );
} catch ( e ) {
return error( pluploadL10n.default_error, e, file );
}
if ( ! _.isObject( response ) || _.isUndefined( response.success ) ) {
return error( pluploadL10n.default_error, null, file );
} else if ( ! response.success ) {
return error( response.data && response.data.message, response.data, file );
}
// Success. Update the UI with the new attachment.
fileUploaded( up, file, response );
});
/**
* When plupload surfaces an error, send it to the error handler.
*
* @param {plupload.Uploader} up Uploader instance.
* @param {Object} pluploadError Contains code, message and sometimes file and other details.
*/
this.uploader.bind( 'Error', function( up, pluploadError ) {
var message = pluploadL10n.default_error,
key;
// Check for plupload errors.
for ( key in Uploader.errorMap ) {
if ( pluploadError.code === plupload[ key ] ) {
message = Uploader.errorMap[ key ];
if ( typeof message === 'function' ) {
message = message( pluploadError.file, pluploadError );
}
break;
}
}
error( message, pluploadError, pluploadError.file );
up.refresh();
});
};
// Adds the 'defaults' and 'browser' properties.
$.extend( Uploader, _wpPluploadSettings );
Uploader.uuid = 0;
// Map Plupload error codes to user friendly error messages.
Uploader.errorMap = {
'FAILED': pluploadL10n.upload_failed,
'FILE_EXTENSION_ERROR': pluploadL10n.invalid_filetype,
'IMAGE_FORMAT_ERROR': pluploadL10n.not_an_image,
'IMAGE_MEMORY_ERROR': pluploadL10n.image_memory_exceeded,
'IMAGE_DIMENSIONS_ERROR': pluploadL10n.image_dimensions_exceeded,
'GENERIC_ERROR': pluploadL10n.upload_failed,
'IO_ERROR': pluploadL10n.io_error,
'SECURITY_ERROR': pluploadL10n.security_error,
'FILE_SIZE_ERROR': function( file ) {
return pluploadL10n.file_exceeds_size_limit.replace( '%s', file.name );
},
'HTTP_ERROR': function( file ) {
if ( file.type && file.type.indexOf( 'image/' ) === 0 ) {
return pluploadL10n.http_error_image;
}
return pluploadL10n.http_error;
},
};
$.extend( Uploader.prototype, /** @lends wp.Uploader.prototype */{
/**
* Acts as a shortcut to extending the uploader's multipart_params object.
*
* param( key )
* Returns the value of the key.
*
* param( key, value )
* Sets the value of a key.
*
* param( map )
* Sets values for a map of data.
*/
param: function( key, value ) {
if ( arguments.length === 1 && typeof key === 'string' ) {
return this.uploader.settings.multipart_params[ key ];
}
if ( arguments.length > 1 ) {
this.uploader.settings.multipart_params[ key ] = value;
} else {
$.extend( this.uploader.settings.multipart_params, key );
}
},
/**
* Make a few internal event callbacks available on the wp.Uploader object
* to change the Uploader internals if absolutely necessary.
*/
init: function() {},
error: function() {},
success: function() {},
added: function() {},
progress: function() {},
complete: function() {},
refresh: function() {
var node, attached, container, id;
if ( this.browser ) {
node = this.browser[0];
// Check if the browser node is in the DOM.
while ( node ) {
if ( node === document.body ) {
attached = true;
break;
}
node = node.parentNode;
}
/*
* If the browser node is not attached to the DOM,
* use a temporary container to house it, as the browser button shims
* require the button to exist in the DOM at all times.
*/
if ( ! attached ) {
id = 'wp-uploader-browser-' + this.uploader.id;
container = $( '#' + id );
if ( ! container.length ) {
container = $('<div class="wp-uploader-browser" />').css({
position: 'fixed',
top: '-1000px',
left: '-1000px',
height: 0,
width: 0
}).attr( 'id', 'wp-uploader-browser-' + this.uploader.id ).appendTo('body');
}
container.append( this.browser );
}
}
this.uploader.refresh();
}
});
// Create a collection of attachments in the upload queue,
// so that other modules can track and display upload progress.
Uploader.queue = new wp.media.model.Attachments( [], { query: false });
// Create a collection to collect errors incurred while attempting upload.
Uploader.errors = new Backbone.Collection();
exports.Uploader = Uploader;
})( wp, jQuery );
بين التربية والتقنية هل ينتج العالم الافتراضي جيلاً مثقفًا أم معزولًا؟ – tahkoom.com
كتبت شروق عارف
في ظل التطور التكنولوجي الحادث والابتكارات الجديدة ظهر العالم الافتراضي الذي أحدث ثورة في كافة المجالات مما جعلنا نطرح سؤال مهم ماذا لو أصبح التعليم مرتبط بالعالم الافتراضي؟ وكيف سيؤثر هذا الربط على الطلاب وتحصيلهم الأكاديمي ؟ ما هو العالم الافتراضي والميتافيرس؟ مزايا وتحديات ربط التعليم بالعالم الافتراضي
آراء متباينة حول فاعلية العالم الافتراضي
يمكن القول إن ربط التعليم بالعالم الافتراضي قد يسهم بشكل كبير في توسيع أفاقنا الفكرية وسوف يجعل التجربة التعليمية أكثر متعة ولكن مع ذلك يجب التعامل مع هذه التقنية بحذر حتى نتجنب الأثار السلبية وعلينا التأكد أن العالم الافتراضي لا يمكن أن يحلل محل المعلم
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