An enhanced HTML 5 file input for Bootstrap 3.x with file preview for various files, offers multiple selection, and more. The plugin allows you a simple way to setup an advanced file picker/upload control built to work specially with Bootstrap CSS3 styles. It enhances the file input functionality further, by offering support to preview a wide variety of files i.e. images, text, html, video, audio, flash, and objects. In addition, it includes AJAX based uploads, dragging & dropping files, viewing upload progress, and selectively previewing, adding, or deleting files.
This plugin was initially inspired by this blog article and Jasny's File Input plugin. But the plugin has now matured with various additional features and enhancements to be a complete (yet simple) file management tool and solution for web developers.
NOTE: The latest version of the plugin v4.1.8 has been released. Refer the CHANGE LOG for details.
- The plugin will convert a simple HTML file input to an advanced file picker control. Will help fallback to a normal HTML file input for browsers not supporting JQuery or Javascript.
- The file input consists of the following three sections with options and templates to control the display:
- file caption section: to display a brief information of the file(s) selected
- file action buttons section: to browse, remove, and upload files.
- file preview section: to display the selected files on client for preview (supports preview of image, text, flash, and video file types). Other file types will be displayed as normal thumbnails.
- The plugin automatically converts an input with
type = file
to an advanced file picker input if you set itsclass = file
. All options to the input can be passed as HTML5data
attributes. - Ability to select and preview multiple files. Uses HTML 5 File reader API to read and preview files. Displays the progress of files being being loaded onto the preview zone, in case many files are chosen.
- Offers predefined templates and CSS classes which can be changed to style your file-input display as per your needs.
- With v1.5.0, you can now configure the plugin to show an initial preview of images/files with initial caption
(more useful for record update scenarios). Refer the
initialPreview
andinitialCaption
properties in the plugin options section for configuring this. - Option to show/hide any or all of the following:
- caption section
- preview section
- upload button
- remove button
- Customise the location of the target container elements to display the entire plugin, the caption container, the caption text, the preview container, preview image, and preview status.
- For text file previews, autowrap the text to the thumbnail width, and show a wrap indicator link to display complete text on hover. You can customize the wrap indicator (which defaults to …).
- Customise the messages for preview, progress, and files selected.
- Upload action defaults to form submit. Supports an upload route/server action parameter for custom ajax based upload.
- Triggers JQuery events for advanced development. Events currently available are
filereset
,fileclear
,filecleared
,fileloaded
, andfileerror
. - Disabled and readonly file input support.
- Dynamically auto size the file captions for long file names exceeding container width.
- Raise new
fileimageuploaded
event that fires after image is completely loaded on the preview container. - Autosize preview images when they exceed the size of the preview container.
- Completely templatized and extensible to allow configuration of the file-input the way the developer wants.
- Preview intelligence based on various file preview types. The inbuilt file support types are categorized as
image
,text
,html
,video
,audio
,flash
,object
, andother
. allowedPreviewTypes
: You can now configure which all file types are allowed to be shown as a preview. This defaults to['image', 'html', 'text', 'video', 'audio', 'flash', 'object']
. Thus all file types are treated as an object to preview by default. For exampleTo preview onlyimage
andvideo
, you can set this to['image', 'video']
.allowedPreviewMimeTypes
: In addition toallowedPreviewTypes
, you can also control which all mime types can be displayed for preview. This defaults to null, meaning all mime types are supported.
NOTE: With release 2.5.0 you can now control which file types or extensions are allowed for upload by setting
allowedFileTypes
andallowedFileExtensions
.
layoutTemplates
: Allows you to configure all layout template settings within one property. The layout objects that can be configured are:main1
,main2
,preview
,caption
, andmodal
.previewTemplates
: All preview templates for each preview type have been combined into one property, instead of separate templates for image, text etc. The keys are the formats as set inallowedPreviewTypes
and values are the templates used for previewing. There are default prebuilt templates for each preview file type (generic
,image
,text
,html
,video
,audio
,flash
,object
, andother
). Thegeneric
template is used only for displayinginitialPreview
content using direct markup.previewSettings
: Allows you to configure width and height for each preview image type. The plugin has default widths and heights predefined for each type i.eimage
,text
,html
,video
,audio
,flash
, andobject
.fileTypeSettings
: Allows you to configure and identify each preview file type using a callback. The plugin has default callbacks predefined to identify each type i.eimage
,text
,html
,video
,audio
,flash
, andobject
.- Replacing tags within templates has been enhanced. With this release it will automatically check for multiple occurrences of each tag to replace within a template string.
- Manipulate events and add your own custom validation messages easily by returning output to abort uploads in any of the other events.
- Support for translations and locales.
With release 4.0.0, the plugin now also includes inbuilt support for AJAX Uploads and selectively adding or deleting files. AJAX upload functionality are built upon HTML5 FormData and XMLHttpRequest Level 2 standards. Most modern browsers do support this standard, but the plugin will automatically degrade to normal form based submission for unsupported browsers.
- Add functionality for AJAX based UPLOAD using HTML5 FormData (most modern browsers support it). Will degrade to normal Form Based File submission if this is not supported.
- To use AJAX Upload, one must set the
uploadUrl
property. - Enhance plugin to now allow files to be added, appended, removed (based on FEEDBACK from many). Thus one can append files to preview.
- New DRAG & DROP zone available in preview to drag and drop files and append.
- Delete or upload files one by one OR in batch.
- If
showPreview
is set to false, or uploadUrl is not supported plugin will degrade to normal form based upload. - Configurable indicators for file awaiting upload, file successfully uploaded, files errored in upload.
- Ability to add extra form data with ajax based uploads.
- Upload progress bar and individual thumbnail upload indicators.
- Ability to cancel and abort ongoing AJAX uploads.
- Build up initial preview content (e.g. gallery of saved images). You can set initial preview actions (prebuilt support for initial preview delete). Other custom action buttons can be set for initial preview thumbnails as well.
- Ensure plugin is still lean in size and optimized for performance inspite of the above features by optimally utilizing HTML5 & jquery features only.
- Automatically refresh preview with content from server as soon as an ajax upload finishes.
NOTE: Drag and Drop zone functionality, selectively appending or deleting files, and upload indicator with progress are ONLY AVAILABLE if you use AJAX BASED uploads (by setting
uploadUrl
).
View the plugin documentation and plugin demos at Krajee JQuery plugins.
- Bootstrap 3.x
- Latest JQuery
- Most modern browsers supporting HTML5 (inputs and FileReader API) including CSS3 & JQuery. For Internet Explorer, one must use IE versions 10 and above. IE9 and below will work as a normal file input, and will not support multiple file selection or the HTML 5 FileReader API.
- With release 4.0, AJAX uploads are supported. AJAX uploads require that the browser support HTML5 FormData and XHR2 (XMLHttpRequest 2). Most modern browsers support FormData and XHR2. The plugin will automatically degrade to normal form based submission for browsers not supporting AJAX uploads.
You can use the bower
package manager to install. Run:
bower install bootstrap-fileinput
You can use the composer
package manager to install. Either run:
$ php composer.phar require kartik-v/bootstrap-fileinput "dev-master"
or add:
"kartik-v/bootstrap-fileinput": "dev-master"
to your composer.json file
You can also manually install the plugin easily to your project. Just download the source ZIP or TAR ball and extract the plugin assets (css and js folders) into your project.
Step 1: Load the following assets in your header.
<link href="http://netdna.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet">
<link href="path/to/css/fileinput.min.css" media="all" rel="stylesheet" type="text/css" />
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<script src="path/to/js/fileinput.min.js"></script>
<!-- optionally if you need translation for your language then include
locale file as mentioned below -->
<script src="path/to/js/fileinput_locale_<lang>.js"></script>
If you noticed, you need to load the jquery.min.js
and bootstrap.min.css
in addition to the fileinput.min.css
and fileinput.min.js
. The locale file fileinput_locale_<lang>.js
can be optionally included for translating for your language if needed.
Step 2: Initialize the plugin on your page. For example,
// initialize with defaults
$("#input-id").fileinput();
// with plugin options
$("#input-id").fileinput({'showUpload':false, 'previewFileType':'any'});
The #input-id
is the identifier for the input (e.g. type = file
) on your page, which is hidden automatically by the plugin.
Alternatively, you can directly call the plugin options by setting data attributes to your input field.
<input id="input-id" type="file" class="file" data-preview-file-type="text" >
As shown in the installation section, translations are now enabled with release 4.1.8. You can load a locale file /fileinput_locale_<lang>.js
after the core fileinput.min.js
file, where <lang>
is the language code (e.g. de
, fr
etc.). If locale file does not exist, you can submit a translation for the new language via a new pull request to add to this folder. Use the sample locale file to copy and create a translation configuration for your own language.
The plugin supports these following options:
boolean whether to display the file caption. Defaults to true
.
boolean whether to display the file preview. Defaults to true
.
boolean whether to display the file remove/clear button. Defaults to true
.
boolean whether to display the file upload button. Defaults to true
. This will default to a form submit button, unless the uploadUrl is specified.
boolean whether to display the file upload cancel button. Defaults to true
. This will be only enabled and displayed when an AJAX upload is in process.
string any additional CSS class to append to the caption container.
string any additional CSS class to append to the preview container.
string any additional CSS class to append to the main plugin container.
string, the delimiter to be used to allow passing multiple content delimited as a string to initialPreview
. Defaults to '*$$*'
.
string | array the initial preview content to be displayed. You can pass the minimal HTML markup for displaying your image, text, or file.
If set as a string, this will display a single file in the initial preview if there is no delimiter. You can set a delimiter (as defined
in initialDelimiter
) to show multiple files in initial preview. If set as an array, it will display all files in the array as an
initial preview (useful for multiple file upload scenarios).
The following CSS classes will need to be added for displaying each file type as per the plugin style theme:
- image files: Include CSS class
file-preview-image
- text files: Include CSS class
file-preview-text
- other files: Include CSS class
file-preview-other
Examples of how you can setup various files for initial preview:
// for image files
initialPreview: [
"<img src='/images/desert.jpg' class='file-preview-image' alt='Desert' title='Desert'>",
"<img src='/images/jellyfish.jpg' class='file-preview-image' alt='Jelly Fish' title='Jelly Fish'>",
],
// for text files
initialPreview: "<div class='file-preview-text' title='NOTES.txt'>" +
"This is the sample text file content upto wrapTextLength of 250 characters" +
"<span class='wrap-indicator' onclick='$(\"#show-detailed-text\").modal(\"show\")' title='NOTES.txt'>[…]</span>" +
"</div>"
// for other files
initialPreview: "<div class='file-preview-text'>" +
"<h2><i class='glyphicon glyphicon-file'></i></h2>" +
"Filename.xlsx" + "</div>"
int, the count of initial preview items that will be added to the count of files selected in preview. This is applicable when displaying
the right caption, when overwriteInitial
is set to false
.
string, the delimiter to be used for splitting the initial preview content as individual file thumbnails (applicable only if initialPreview
is passed as a string instead of array). Defaults to *$$*
.
array, the configuration for setting up important properties for each initialPreview
item (that is setup as part of initialPreview
). Each element in the array should be an object/associative array consisting of the following keys:
- `caption`: _string_, the caption or filename to display for each initial preview item content.
- `width`: _string_, the CSS width of the image/content displayed.
- `url`: _string_, the URL for deleting the image/content in the initial preview via AJAX post response. This will default to `deleteUrl` if not set.
- `key`: _string|object_, the key that will be passed as data to the `url` via AJAX POST.
- `extra`: _object|function_, the extra data that will be passed as data to the initial preview delete url/AJAX server call via POST. This will default to `deleteExtraData` if not set.
An example configuration of initialPreviewConfig
(for the previously set initialPreviewContent
) can be:
// setup initial preview with data keys
initialPreview: [
"<img src='/images/desert.jpg' class='file-preview-image' alt='Desert' title='Desert'>",
"<img src='/images/jellyfish.jpg' class='file-preview-image' alt='Jelly Fish' title='Jelly Fish'>",
],
// initial preview configuration
initialPreviewConfig: [
{
caption: 'desert.jpg',
width: '120px',
url: '/localhost/avatar/delete',
key: 100,
extra: {id: 100}
},
{
caption: 'jellyfish.jpg',
width: '120px',
url: '/localhost/avatar/delete',
key: 101,
extra: function() {
return {id: $("#id").val()};
},
}
]
Note: The ajax delete action will send the following data to server via POST:
key
: the key setting as setup ininitialPreviewConfig['key']
- any other extra data as
key: value
pairs passed either viainitialPreviewConfig['extra']
ORdeleteExtraData
format if former is not set.
bool, whether the delete button will be displayed for each thumbnail that has been created with initialPreview
.
object | function the extra data that will be passed as data to the initial preview delete url/AJAX server call via POST. This will be overridden by the initialPreviewConfig['extra']
property. This can be setup either as an object (associative array of keys and values) or as a function callback. As an object, it can be set for example as:
{id: 100, value: '100 Details'}
As a function callback, it can be setup for example as:
function() {
var obj = {};
$('.your-form-class').find('input').each(function() {
var id = $(this).attr('id'), val = $(this).val();
obj[id] = val;
});
return obj;
}
object | function the URL for deleting the image/content in the initial preview via AJAX post response. This will be overridden by the initialPreviewConfig['url']
property.
string the initial preview caption text to be displayed. If you do not set a value here and initialPreview
is set to
true
this will default to "{preview-file-count} files selected"
, where {preview-file-count}
is the count of the
files passed in initialPreview
.
boolean whether you wish to overwrite the initial preview content and caption setup. This defaults to true
, whereby, any initialPreview
content set
will be overwritten, when new file is uploaded or when files are cleared. Setting it to false
will help displaying a saved image or file from database always -
useful especially when using the multiple
file upload feature.
object the templates configuration for rendering each part of the layout. You can set the following templates to control the widget layout:
main1
: the template for rendering the widget with caption.main2
: the template for rendering the widget without caption.preview
: the template for rendering the preview.icon
: the icon to render before the caption text.caption
: the template for rendering the caption.modal
: the template for rendering the modal (for text file preview zooming).progress
: the template for the progress bar when upload is in progress (for batch/mass uploads). The following tags will be parsed and replaced automatically:{percent}
: will be replaced with the upload progress percentage.
footer
: the template for the footer section of each file preview thumbnail. The following tags will be parsed and replaced automatically:{actions}
: will be replaced with the output of theactions
template.
actions
: the template for the file action buttons to be displayed within the thumbnailfooter
. The following tags will be parsed and replaced automatically:{upload}
: will be replaced with the output of theactionUpload
template.{delete}
: will be replaced with the output of theactionDelete
template.
actionDelete
: the template for the file delete action button within the thumbnailfooter
. The following tags will be parsed and replaced automatically:{removeClass}
: the css class for the remove button. Will be replaced with theremoveClass
set withinfileActionSettings
.{removeIcon}
: the icon for the remove button. Will be replaced with theremoveIcon
set withinfileActionSettings
.{removeTitle}
: the title to display on hover for the remove button. Will be replaced with theremoveTitle
set withinfileActionSettings
.{dataUrl}
: the URL for deleting the file thumbnail forinitialPreview
content only. Will be replaced with theurl
set withininitialPreviewConfig
.{dataKey}
: the key (additional data) that will be passed to the URL above via POST to the AJAX call. Will be replaced with thekey
set withininitialPreviewConfig
.{dataIndex}
: will be replaced with theindex
of each row item ininitialPreviewConfig
.
actionUpload
: the template for the file upload action button within the thumbnailfooter
.{uploadClass}
: the css class for the upload button. Will be replaced with theuploadClass
set withinfileActionSettings
.{uploadIcon}
: the icon for the upload button. Will be replaced with theuploadIcon
set withinfileActionSettings
.{uploadTitle}
: the title to display on hover for the upload button. Will be replaced with theuploadTitle
set withinfileActionSettings
.
The main1
and main2
templates would automatically parse the following tags for replacement:
{class}
: the CSS class as set in themainClass
property.{preview}
: the content parsed by thepreviewTemplate
and will be displayed only ifshowPreview
istrue
.{caption}
: the content parsed by thecaptionTemplate
and will be displayed only ifshowCaption
istrue
.{remove}
: the file remove/clear button and will be displayed only ifshowRemove
istrue
.{upload}
: the file upload button and will be displayed only ifshowUpload
istrue
.{cancel}
: the file upload cancel button that will be displayed when AJAX upload is in process to abort the AJAX upload.{browse}
: the main file browse button to select your files for input.
The preview
and caption
templates can understand the following special tags which will be replaced:
{class}
: the CSS class as set in themainClass
,captionClass
orpreviewClass
properties.
Similarly, the progress
layout template can understand the following special tags which will be replaced:
{class}
: the CSS class as set in theprogressClass
orprogressCompleteClass
properties.
The layoutTemplates
if not set will default to:
{
main1: '{preview}\n' +
'<div class="kv-upload-progress hide"></div>\n' +
'<div class="input-group {class}">\n' +
' {caption}\n' +
' <div class="input-group-btn">\n' +
' {remove}\n' +
' {cancel}\n' +
' {upload}\n' +
' {browse}\n' +
' </div>\n' +
'</div>',
main2: '{preview}\n<div class="kv-upload-progress hide"></div>\n{remove}\n{cancel}\n{upload}\n{browse}\n',
preview: '<div class="file-preview {class}">\n' +
' <div class="close fileinput-remove">×</div>\n' +
' <div class="{dropClass}">\n' +
' <div class="file-preview-thumbnails">\n' +
' </div>\n' +
' <div class="clearfix"></div>' +
' <div class="file-preview-status text-center text-success"></div>\n' +
' <div class="kv-fileinput-error"></div>\n' +
' </div>\n' +
'</div>',
icon: '<span class="glyphicon glyphicon-file kv-caption-icon"></span>',
caption: '<div tabindex="-1" class="form-control file-caption {class}">\n' +
' <span class="file-caption-ellipsis">…</span>\n' +
' <div class="file-caption-name"></div>\n' +
'</div>',
modal: '<div id="{id}" class="modal fade">\n' +
' <div class="modal-dialog modal-lg">\n' +
' <div class="modal-content">\n' +
' <div class="modal-header">\n' +
' <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>\n' +
' <h3 class="modal-title">Detailed Preview <small>{title}</small></h3>\n' +
' </div>\n' +
' <div class="modal-body">\n' +
' <textarea class="form-control" style="font-family:Monaco,Consolas,monospace; height: {height}px;" readonly>{body}</textarea>\n' +
' </div>\n' +
' </div>\n' +
' </div>\n' +
'</div>',
progress: '<div class="progress">\n' +
' <div class="{class}" role="progressbar" aria-valuenow="{percent}" aria-valuemin="0" aria-valuemax="100" style="width:{percent}%;">\n' +
' {percent}%\n' +
' </div>\n' +
'</div>',
footer: '<div class="file-thumbnail-footer">\n' +
' <div class="file-caption-name" style="width:{width}">{caption}</div>\n' +
' {actions}\n' +
'</div>',
actions: '<div class="file-actions">\n' +
' <div class="file-footer-buttons">\n' +
' {upload}{delete}{other}' +
' </div>\n' +
' <div class="file-upload-indicator" tabindex="-1" title="{indicatorTitle}">{indicator}</div>\n' +
' <div class="clearfix"></div>\n' +
'</div>',
actionDelete: '<button type="button" class="kv-file-remove {removeClass}" title="{removeTitle}"{dataUrl}{dataKey}{dataIndex}>{removeIcon}</button>\n',
actionUpload: '<button type="button" class="kv-file-upload {uploadClass}" title="{uploadTitle}">{uploadIcon}</button>\n'
};
object the templates configuration for rendering each preview file type. The following file types are recognized:
image
: the preview template for image files.text
: the preview template for text files.html
: the preview template for html files.video
: the preview template for video files (supported by HTML 5 video tag).audio
: the preview template for audio files (supported by HTML 5 audio tag).flash
: the preview template for flash files (supported currently on webkit browsers).object
: the preview template for all other files - by default treated as object. To disable this behavior, configure theallowedPreviewTypes
property.generic
: this template is used ONLY for rendering theinitialPreview
markup content passed directly as a raw format.
The following tags will be parsed and replaced in each of the templates:
{previewId}
: will be replaced with the generated identifier for the preview frame container.{data}
: will be replaced with the data source for each preview type.{width}
: will be replaced with the width for the file type as set inpreviewSettings
.{height}
: will be replaced with the height for the file type as set inpreviewSettings
.{caption}
: will be replaced with the file name.{type}
: will be replaced with the file type.{content}
: this is applicable only for thegeneric
template. It will be replaced with the raw HTML markup as set ininitialPreview
. None of the above tags will be parsed for thegeneric
template.
As noted, if you are coming from an earlier release (before v2.4.0), all preview templates have now been combined into one property, instead of separate templates for image, text etc.
The previewTemplates
if not set will default to:
{
generic: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}">\n' +
' {content}\n' +
' {footer}\n' +
'</div>\n',
html: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}">\n' +
' <object data="{data}" type="{type}" width="{width}" height="{height}">\n' +
' ' + DEFAULT_PREVIEW + '\n' +
' </object>\n' +
' {footer}\n' +
'</div>',
image: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}">\n' +
' <img src="{data}" class="file-preview-image" title="{caption}" alt="{caption}" ' + STYLE_SETTING + '>\n' +
' {footer}\n' +
'</div>\n',
text: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}">\n' +
' <div class="file-preview-text" title="{caption}" ' + STYLE_SETTING + '>\n' +
' {data}\n' +
' </div>\n' +
' {footer}\n' +
'</div>\n',
video: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}" title="{caption}" ' + STYLE_SETTING + '>\n' +
' <video width="{width}" height="{height}" controls>\n' +
' <source src="{data}" type="{type}">\n' +
' ' + DEFAULT_PREVIEW + '\n' +
' </video>\n' +
' {footer}\n' +
'</div>\n',
audio: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}" title="{caption}" ' + STYLE_SETTING + '>\n' +
' <audio controls>\n' +
' <source src="{data}" type="{type}">\n' +
' ' + DEFAULT_PREVIEW + '\n' +
' </audio>\n' +
' {footer}\n' +
'</div>\n',
flash: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}" title="{caption}" ' + STYLE_SETTING + '>\n' +
' <object type="application/x-shockwave-flash" width="{width}" height="{height}" data="{data}">\n' +
OBJECT_PARAMS + ' ' + DEFAULT_PREVIEW + '\n' +
' </object>\n' +
' {footer}\n' +
'</div>\n',
object: '<div class="file-preview-frame" id="{previewId}" data-fileindex="{fileindex}" title="{caption}" ' + STYLE_SETTING + '>\n' +
' <object data="{data}" type="{type}" width="{width}" height="{height}">\n' +
' <param name="movie" value="{caption}" />\n' +
OBJECT_PARAMS + ' ' + DEFAULT_PREVIEW + '\n' +
' </object>\n' +
' {footer}\n' +
'</div>',
other: '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}" title="{caption}" ' + STYLE_SETTING + '>\n' +
' ' + DEFAULT_PREVIEW + '\n' +
' {footer}\n' +
'</div>',
}
The values of the constants used in the above templates are as follows:
STYLE_SETTING = 'style="width:{width};height:{height};"',
OBJECT_PARAMS = ' <param name="controller" value="true" />\n' +
' <param name="allowFullScreen" value="true" />\n' +
' <param name="allowScriptAccess" value="always" />\n' +
' <param name="autoPlay" value="false" />\n' +
' <param name="autoStart" value="false" />\n'+
' <param name="quality" value="high" />\n',
DEFAULT_PREVIEW = '<div class="file-preview-other">\n' +
' <i class="glyphicon glyphicon-file"></i>\n' +
' </div>'
array the list of allowed file types for upload. This by default is set to null which means the plugin supports all file types for upload. If an
invalid file type is found, then a validation error message as set in msgInvalidFileType
will be raised. The following types as set in fileTypeSettings
are available for setup.
['image', 'html', 'text', 'video', 'audio', 'flash', 'object']
array the list of allowed file extensions for upload. This by default is set to null which means the plugin supports all file extensions for upload. If an
invalid file extension is found, then a validation error message as set in msgInvalidFileExtension
will be raised. An example of setting this could be:
['jpg', 'gif', 'png', 'txt']
NOTE: You need to be careful in case you are setting both
allowedFileTypes
andallowedFileExtensions
. In this case, theallowedFileTypes
property is validated first and generally precedes theallowedFileExtensions
setting (and the latter validation maybe skipped).
array the list of allowed preview types for your widget. This by default supports all file types for preview. The plugin by default treats each
file as an object if it does not match any of the previous types. To disable this behavior, you can remove object
from the list of allowedPreviewTypes
OR fine tune it through allowedPreviewMimeTypes
.
This is by default setup as following:
['image', 'html', 'text', 'video', 'audio', 'flash', 'object']
array the list of allowed mime types for preview. This is set to null by default which means all possible mime types are allowed. This setting works in combination with allowedPreviewTypes
to filter only the needed file types allowed for preview. You can check this list of allowed mime types to add to this list if needed.
object the list of additional custom tags that will be replaced in the layout templates. This should be an associative array object of key: value
pairs, where:
key
: string, is the tag to be replaced and as a standard is recommended to be enclosed between braces.value
: string|function, is the value that will replace the tag key above. This can be setup either as a string or callback function.
For example:
// example 1 - tags with value set as string
customLayoutTags: {
'{tagA}': '<span class="label label-default">Tag A</span>',
'{tagB}': 'Tag B',
}
// example 2 - tags with value set as callback
customLayoutTags: {
'{tagC}': function() {
return $("#element-id").val();
}
}
object the list of additional custom tags that will be replaced in the preview templates. This should be an associative array object of key: value
pairs, where:
key
: string, is the tag to be replaced and as a standard is recommended to be enclosed between braces.value
: string|function, is the value that will replace the tag key above. This can be setup either as a string or callback function.
For example:
// example 1 - tags with value set as string
customPreviewTags: {
'{tagA}': '<span class="label label-default">Tag A</span>',
'{tagB}': 'Tag B',
}
// example 2 - tags with value set as callback
customPreviewTags: {
'{tagC}': function() {
return $("#element-id").val();
}
}
object the format settings (width and height) for rendering each preview file type. This is by default setup as following:
{
image: {width: "auto", height: "160px"},
html: {width: "213px", height: "160px"},
text: {width: "160px", height: "160px"},
video: {width: "213px", height: "160px"},
audio: {width: "213px", height: "80px"},
flash: {width: "213px", height: "160px"},
object: {width: "160px", height: "160px"},
other: {width: "160px", height: "160px"}
}
object the settings to validate and identify each file type when a file is selected for upload. This is a list of callbacks, which accepts the file mime type and file name as a parameter. This is by default setup as following:
// vType: is the file mime type
// vName: is the file name
{
image: function(vType, vName) {
return (typeof vType !== "undefined") ? vType.match('image.*') : vName.match(/\.(gif|png|jpe?g)$/i);
},
html: function(vType, vName) {
return (typeof vType !== "undefined") ? vType == 'text/html' : vName.match(/\.(htm|html)$/i);
},
text: function(vType, vName) {
return typeof vType !== "undefined" && vType.match('text.*') || vName.match(/\.(txt|md|csv|nfo|php|ini)$/i);
},
video: function (vType, vName) {
return typeof vType !== "undefined" && vType.match(/\.video\/(ogg|mp4|webm)$/i) || vName.match(/\.(og?|mp4|webm)$/i);
},
audio: function (vType, vName) {
return typeof vType !== "undefined" && vType.match(/\.audio\/(ogg|mp3|wav)$/i) || vName.match(/\.(ogg|mp3|wav)$/i);
},
flash: function (vType, vName) {
return typeof vType !== "undefined" && vType == 'application/x-shockwave-flash' || vName.match(/\.(swf)$/i);
},
object: function (vType, vName) {
return true;
},
other: function (vType, vName) {
return true;
},
}
string the icon to be shown in each preview file thumbnail when an unreadable file type for preview is detected. Defaults to <i class="glyphicon glyphicon-file"></i>
.
string the label to display for the file picker/browse button. Defaults to Browse …
.
string the icon to display before the label for the file picker/browse button. Defaults to <i class="glyphicon glyphicon-folder-open"></i>
.
string the CSS class for the file picker/browse button. Defaults to btn btn-primary
.
string the label to display for the file remove button. Defaults to Remove
.
string the icon to display before the label for the file picker/remove button. Defaults to <i class="glyphicon glyphicon-trash"></i>
.
string the CSS class for the file remove button. Defaults to btn btn-default
.
string the title to display on hover for the file remove button. Defaults to Clear selected files
.
string the label to display for the file cancel button. Defaults to Cancel
.
string the icon to display before the label for the file picker/remove button. Defaults to <i class="glyphicon glyphicon-ban-circle"></i>
.
string the CSS class for the file cancel button. Defaults to btn btn-default
.
string the title to display on hover for the file cancel button. Defaults to Abort ongoing upload
.
string the label to display for the file upload button. Defaults to Upload
.
string the icon to display before the label for the file upload button. Defaults to <i class="glyphicon glyphicon-upload"></i>
.
string the CSS class for the file upload button. Defaults to btn btn-default
.
string the title to display on hover for the file remove button. Defaults to Upload selected files
.
string the URL for the upload processing action (typically for ajax based processing). Defaults to null
. If this is not set or null
, then the upload button action will default to form submission. NOTE: This is MANDATORY if you want to use advanced features like drag & drop, append/remove files, selectively upload files via ajax etc.
bool whether the batch upload of multiple files will be asynchronous/in parallel. Defaults to true
.
object | function the extra data that will be passed as data to the url/AJAX server call via POST. This can be setup either as an object (associative array of keys and values) or as a function callback. As an object, it can be set for example as:
{id: 100, value: '100 Details'}
As a function callback, it can be setup for example as:
function() {
var obj = {};
$('.your-form-class').find('input').each(function() {
var id = $(this).attr('id'), val = $(this).val();
obj[id] = val;
});
return obj;
}
float the maximum file size for upload in KB. If set to 0
, it means size allowed is unlimited. Defaults to 0
.
int the minimum number of files allowed for each multiple upload. If set to 0
, it means number of files are optional. Defaults to 0
.
int the maximum number of files allowed for each multiple upload. If set to 0
, it means number of files allowed is unlimited. Defaults to 0
.
string the message to be displayed when the file size exceeds maximum size. Defaults to:
File "{name}" (<b>{size} KB</b>) exceeds maximum allowed upload size of <b>{maxSize} KB</b>. Please retry your upload!
where:
{name}
: will be replaced by the file name being uploaded{size}
: will be replaced by the uploaded file size{maxSize}
: will be replaced by themaxFileSize
parameter.
string the message to be displayed when the file count is less than the minimum count as set in minFileCount
. Defaults to:
You must select at least <b>{n}</b> {files} to upload. Please retry your upload!
where:
{n}
: will be replaced by the allowed minimum files as set inminFileCount
{files}
: will be replaced withfileSingle
orfilePlural
properties in locale file depending on theminFileCount
.
string the message to be displayed when the file count exceeds maximum count as set in maxFileCount
. Defaults to:
Number of files selected for upload <b>({n})</b> exceeds maximum allowed limit of <b>{m}</b>. Please retry your upload!
where:
{n}
: will be replaced by number of files selected for upload{m}
: will be replaced by the allowed maximum files as set inmaxFileCount
string the exception message to be displayed when the file selected is not found by the FileReader. Defaults to:
File "{name}" not found!
where:
{name}
: will be replaced by the file name being uploaded
string the exception message to be displayed when the file selected is not allowed to be accessed due to a security exception. Defaults to:
Security restrictions prevent reading the file "{name}".
where:
{name}
: will be replaced by the file name being uploaded
string the exception message to be displayed when the file selected is not readable by the FileReader API. Defaults to:
File "{name}" is not readable.
where:
{name}
: will be replaced by the file name being uploaded
string the exception message to be displayed when the file preview upload is aborted. Defaults to:
File preview aborted for "{name}".
where:
{name}
: will be replaced by the file name being uploaded
string the exception message to be displayed for any other error when previewing the file. Defaults to:
An error occurred while reading the file "{name}".
where:
{name}
: will be replaced by the file name being uploaded
string the message to be displayed when the file type is not in one of the file types set in allowedFileTypes
. Defaults to:
Invalid type for file "{name}". Only "{types}" files are supported.
where:
{name}
: will be replaced by the file name being uploaded{types}
: will be replaced by the comma separated list of types defined inallowedFileTypes
.
string the message to be displayed when the file type is not in one of the file extensions set in allowedFileExtensions
. Defaults to:
Invalid extension for file "{name}". Only "{extensions}" files are supported.
where:
{name}
: will be replaced by the file name being uploaded{extensions}
: will be replaced by the comma separated list of extensions defined inallowedFileExtensions
.
string the exception message to be displayed within the caption container (instead of msgFilesSelected
),
when a validation error is encountered. Defaults to File Upload Error
.
string the css class for the validation error message displayed in the caption container. Defaults to text-danger
.
string the icon to be displayed before the validation error in the caption container. Defaults to <i class="glyphicon glyphicon-exclamation-sign"></i>
.
string the css class for the error message to be displayed in the preview window when the file size exceeds maxSize
. Defaults to file-error-message
.
string the message displayed when the files are getting read and loaded for preview. Defaults to
Loading file {index} of {files} …
The following special variables will be replaced:
{index}
: the sequence number of the current file being loaded.{files}
: the total number of files selected for upload.
string the progress message displayed as each file is loaded for preview. Defaults to:
Loading file {index} of {files} - {name} - {percent}% completed.
The following variables will be replaced:
{index}
: the sequence number of the current file being loaded.{files}
: the total number of files selected for upload.{percent}
: the percentage of file read and loaded.{name}
: the name of the current file being loaded.
string the progress message displayed in caption window when multiple (more than one) files are selected. Defaults to {n} files selected
. The following variables will be replaced:
{n}
: the number of files selected.
string the message displayed when a folder has been dragged to the drop zone. Defaults to Drag & drop files only! {n} folder(s) dropped were skipped.
. The following variables will be replaced The following variables will be replaced:
{n}
: the number of folders dropped.
string the upload progress bar CSS class to be applied when AJAX upload is in process (applicable only for ajax uploads). Defaults to progress-bar progress-bar-success progress-bar-striped active
.
string the upload progress bar CSS class to be applied when AJAX upload is complete. Defaults to progress-bar progress-bar-success
.
string the type of files that are to be displayed in the preview window. Defaults to image
. Can be one of the following:
image
: Onlyimage
type files will be shown in preview.text
: Onlytext
type files will be shown in preview.any
: Bothimage
andtext
files content will be shown in preview.
Files other than image
or text
will be displayed as a thumbnail with the filename in the preview window.
integer the number of characters after which the content will be stripped/wrapped for text preview. Defaults to 250
.
string the type of files that are to be displayed in the preview window. Defaults to <span class="wrap-indicator" title="{title}">[…]</span>
. The following variables will be replaced:
{title}
: the content of the entire text file that will be displayed as a span title element.
string the identifier for the container element displaying the error (e.g. '#id'
). If not set, will default to the container with CSS class kv-fileinput-error
inside the preview container (identified by elPreviewContainer
). The msgErrorClass
will be automatically appended to this container before displaying the error.
string the identifier for the container element containing the caption (e.g. '#id'
). If not set, will default to the container with CSS class file-caption
inside the main plugin container.
string the identifier for the container element containing the caption text (e.g. '#id'
). If not set, will default to the container with CSS class file-caption-name
inside the main plugin container.
string the identifier for the container element containing the preview (e.g. '#id'
). If not set, will default to the container with CSS class file-preview
inside the main plugin container.
string the identifier for the element containing the preview image thumbnails (e.g. '#id'
). If not set, will default to the container with CSS class file-preview-thumbnails
inside the main plugin container.
string the identifier for the element containing the preview progress status (e.g. '#id'
). If not set, will default to the container with CSS class file-preview-status
inside the main plugin container.
function a callback to convert the filename as a slug string eliminating special characters. If not set, it will use the plugin's own internal slugDefault
method. This callback function includes the filename as parameter and must return a converted filename string.
Example:
slugCallback: function(filename) {
return filename.replace('(', '_');
}
bool whether to enable a drag and drop zone for dragging and dropping files to. This is available only for ajax based uploads. Defaults to true
.
string title to be displayed in the drag and drop zone. This is available only for ajax based uploads. Defaults to Drag & drop files here …
.
string CSS class for the drag & drop zone title. Defaults to file-drop-zone-title
.
object configuration for setting up file actions for newly selected file thumbnails in the preview window. The following properties can be set:
- removeIcon
: string, icon for remove button to be displayed in each file thumbnail.
- removeClass
: string, CSS class for the remove button in each file thumbnail.
- removeTitle
: string, title for remove button in each file thumbnail.
- uploadIcon
: string, icon for upload button to be displayed in each file thumbnail.
- uploadClass
: string, CSS class for the remove button in each file thumbnail.
- uploadTitle
: string, title for remove button in each file thumbnail.
- indicatorNew
: string, an indicator (HTML markup) for new pending upload displayed in each file thumbnail.
- indicatorSuccess
: string, an indicator (HTML markup) for successful upload displayed in each file thumbnail.
- indicatorError
: string, an indicator (HTML markup) for error in upload displayed in each file thumbnail.
- indicatorLoading
: string, an indicator (HTML markup) for ongoing upload displayed in each file thumbnail.
- indicatorNewTitle
: string, title to display on hover of indicator for new pending upload in each file thumbnail.
- indicatorSuccessTitle
: string, title to display on hover of indicator for successful in each file thumbnail.
- indicatorErrorTitle
: string, title to display on hover of indicator for error in upload in each file thumbnail.
- indicatorLoadingTitle
: string, title to display on hover of indicator for ongoing upload in each file thumbnail.
Defaults to the following setting:
{
removeIcon: '<i class="glyphicon glyphicon-trash text-danger"></i>',
removeClass: 'btn btn-xs btn-default',
removeTitle: 'Remove file',
uploadIcon: '<i class="glyphicon glyphicon-upload text-info"></i>',
uploadClass: 'btn btn-xs btn-default',
uploadTitle: 'Upload file',
indicatorNew: '<i class="glyphicon glyphicon-hand-down text-warning"></i>',
indicatorSuccess: '<i class="glyphicon glyphicon-ok-sign file-icon-large text-success"></i>',
indicatorError: '<i class="glyphicon glyphicon-exclamation-sign text-danger"></i>',
indicatorLoading: '<i class="glyphicon glyphicon-hand-up text-muted"></i>',
indicatorNewTitle: 'Not uploaded yet',
indicatorSuccessTitle: 'Uploaded',
indicatorErrorTitle: 'Upload Error',
indicatorLoadingTitle: 'Uploading ...'
}
string markup for additional action buttons to display within the initial preview thumbnails (for example displaying an image edit button). The following tags can be used in the markup and will be automatically replaced:
{dataKey}
: Will be replaced with thekey
set withininitialPreviewConfig
.
string the encoding to be used while reading a text file. Applicable only for previewing text files. Defaults to UTF-8
.
object additional ajax settings to pass to the plugin before submitting the ajax request. Applicable only for ajax uploads. This can be useful to pass additional tokens to headers or one can use it for setting other ajax options for advanced cases. Refer the jQuery ajax documentation for the various settings you can configure.
object additional ajax settings to pass to the plugin before submitting the delete ajax request in each initial preview thumbnail. Applicable only for ajax deletions. This can be useful to pass additional tokens to headers or one can use it for setting other ajax options for advanced cases. Refer the jQuery ajax documentation for the various settings you can configure.
boolean whether to show details of the error stack from the server log when an error is encountered via ajax response. Defaults to true
.
The plugin supports these events:
This event is triggered when the file input the remove button is pressed for clearing the file preview.
Example:
$('#input-id').on('fileclear', function(event) {
console.log("fileclear");
});
This event is triggered after the files in the preview are cleared.
Example:
$('#input-id').on('filecleared', function(event) {
console.log("filecleared");
});
This event is triggered after a file is loaded in the preview. Additional parameters available are:
file
: the file object instancepreviewId
: the identifier for the preview file containerindex
: the zero-based sequential index of the loaded file in the preview listreader
: the FileReader instance if available
Example:
$('#input-id').on('fileloaded', function(event, file, previewId, index, reader) {
console.log("fileloaded");
});
This event is triggered when the file input is reset to initial value.
Example:
$('#input-id').on('filereset', function(event) {
console.log("filereset");
});
This event is triggered when each file image is fully loaded in the preview window. This is only applicable for image file previews and if showPreview
is set to true. Additional parameters available are:
previewId
: the identifier for the preview file container
Example:
$('#input-id').on('fileimageloaded', function(event, previewId) {
console.log("fileimageloaded");
});
This event is triggered when the file browse button is clicked to open the file selection dialog.
Example:
$('#input-id').on('filebrowse', function(event) {
console.log("File browse triggered.");
});
This event is triggered after a batch of files are selected and displayed in the preview. Additional parameters available are:
files
: the file stack array (or empty object if not available).
$('#input-id').on('filebatchselected', function(event, files) {
console.log('File batch selected triggered');
});
This event is triggered when no files are selected by the user for a repeat selection scenario (i.e. on a file input that already contains previously selected files). This event is better applicable for browsers like Google Chrome, which clear the file input when the file selection dialog is cancelled. For other browsers, this event is typically triggered only when one resets the form or clears file input (using the remove button).
Example:
$('#input-id').on('fileselectnone', function(event) {
console.log("Huh! No files were selected.");
});
This event is triggered when the upload process is launched by clicking a upload button, and the entire widget is locked (disabled) until upload is getting processed. Only the Cancel
button will be enabled when the file input is locked. Additional parameters available are:
filestack
: the array of selected file objects.extraData
: theuploadExtraData
settings for the plugin (will return an empty object if not set).
$('#input-id').on('filelock', function(event, filestack, extraData) {
var fstack = filestack.filter(function(n){ return n != undefined });
console.log('Files selected - ' + fstack.length);
});
This event is triggered when the upload process is completed (successfully or with error). The entire widget is unlocked (enabled) and reverts to initial state. Additional parameters available are:
filestack
: the array of selected file objects.extraData
: theuploadExtraData
settings for the plugin (will return an empty object if not set).
$('#input-id').on('fileunlock', function(event, filestack, extraData) {
var fstack = filestack.filter(function(n){ return n != undefined });
console.log('Files selected - ' + fstack.length);
});
This event is triggered before deletion of each thumbnail file in the initialPreview
content set. Additional parameters available are:
key
: the key passed withininitialPreviewConfig
for the selected file for delete.jqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).data
: the output ofdeleteExtraData
object.
$('#input-id').on('filepredelete', function(event, key, jqXHR) {
console.log('Key = ' + key);
});
This event is triggered after deletion of each thumbnail file in the initialPreview
content set. Additional parameters available are:
key
: the key passed withininitialPreviewConfig
for the selected file that will be passed as POST data to theurl
.jqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).data
: the output ofdeleteExtraData
object.
$('#input-id').on('filedeleted', function(event, key) {
console.log('Key = ' + key);
});
$('#input-id').on('fileunlock', function(event, filestack) {
var fstack = filestack.filter(function(n){ return n != undefined });
console.log('Files selected - ' + fstack.length);
});
This event is triggered before upload of each thumbnail file. Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:form
: the FormData object which is passed via XHR2 (or empty object if not available).files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).response
: the data sent via ajax response (or empty object if not available).reader
: the FileReader instance if availablejqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).
previewId
: the identifier of the preview thumbnail container.index
: the zero-based index of the file in the preview container.
$('#input-id').on('filepreupload', function(event, data, previewId, index, jqXHR) {
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log('File pre upload triggered');
});
This event is triggered after upload is completed for each thumbnail file. Note this event is also triggered for asynchronous batch uploads after each file in the selection is uploaded via ajax. Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:form
: the FormData object which is passed via XHR2 (or empty object if not available).files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).response
: the data sent via ajax response (or empty object if not available).reader
: the FileReader instance if availablejqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).
previewId
: the identifier of each file's parent thumbnail div element in the preview window.index
: the zero-based index of the file in the file stack.
$('#input-id').on('fileuploaded', function(event, data, previewId, index) {
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log('File uploaded triggered');
});
This event is triggered before a batch upload (for both synchronous and asynchronous uploads) after the upload button is clicked. Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:form
: the FormData object which is passed via XHR2 (or empty object if not available).files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).response
: the data sent via ajax response (or empty object if not available).reader
: the FileReader instance if availablejqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).
$('#input-id').on('filebatchpreupload', function(event, data, jqXHR) {
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log('File batch pre upload triggered');
});
This event is triggered after a successful synchronous batch upload (i.e. when uploadAsync
is false
). Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:form
: the FormData object which is passed via XHR2 (or empty object if not available).files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).response
: the data sent via ajax response (or empty object if not available).reader
: the FileReader instance if available
$('#input-id').on('filebatchuploadsuccess', function(event, data) {
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log('File batch upload success');
});
This event is triggered after completion of either the synchronous OR asynchronous ajax batch upload. Additional parameters available are:
files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).
$('#input-id').on('filebatchuploadcomplete', function(event, files, extra) {
console.log('File batch upload complete');
});
This event is triggered when the file input widget is disabled (prevents any modification) using the disable
method.
$('#input-id').on('filedisabled', function(event) {
console.log('File disabled.');
});
This event is triggered when the file input widget is enabled (allows modification) using the enable
method.
$('#input-id').on('fileenabled', function(event) {
console.log('File enabled.');
});
This event is triggered when a client validation error is encountered for an uploaded file. This allows access to an object data
as a parameter.
data
: object/associative array containing the followingid
: the preview thumbnail identifier (or undefined if not available)index
: the file index/preview thumbnail index (or undefined if not available)file
: the file object (or undefined if not available)reader
: the file reader instance (or undefined if not available)files
: the file stack array (or empty object if not available).
Example:
$('#input-id').on('fileerror', function(event, data) {
console.log(data.id);
console.log(data.index);
console.log(data.file);
console.log(data.reader);
console.log(data.files);
});
This event is triggered when an upload or file input validation error is encountered primarily for ajax uploads (through the upload icon for each thumbnail or for every file uploaded when uploadAsync is true
). Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:id
: the preview thumbnail identifier (or undefined if not available)index
: the file index/preview thumbnail index (or undefined if not available).form
: the FormData object which is passed via XHR2 (or empty object if not available).files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).response
: the data sent via ajax response (or empty object if not available).reader
: the FileReader instance if availablejqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).
$('#input-id').on('fileuploaderror', function(event, data, previewId, index) {
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log('File upload error');
});
This event is triggered when any error is faced in the synchronous batch upload (i.e. when uploadAsync
is false
). Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:form
: the FormData object which is passed via XHR2 (or empty object if not available).files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).response
: the data sent via ajax response (or empty object if not available).reader
: the FileReader instance if availablejqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).
$('#input-id').on('filebatchuploaderror', function(event, data) {
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log('File upload error');
});
This event is triggered when an error is faced in deletion of each thumbnail file in the initialPreview
content set. Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:id
: the preview thumbnail identifier (or undefined if not available)index
: the file index/preview thumbnail index (or undefined if not available).response
: the data sent via ajax response (or empty object if not available).extra
: the output ofdeleteExtraData
object.jqXHR
: thejQuery XMLHttpRequest
object used for this transaction (if available).
$('#input-id').on('filedeleteerror', function(event, data) {
console.log('File delete error');
});
This event is triggered when a folder or multiple folders have been dragged & dropped to the file preview drop zone. Additional parameters available are:
folders
: The count of folders dropped.
$('#input-id').on('filefoldererror', function(event, folders) {
console.log('File folder dropped error');
});
This event is triggered manually by the user from one of the other events by returning an error object from the source event. Refer Event Manipulation section for details. Additional parameters available are:
data
: This is a data object (associative array) that sends the following information, whose keys are:form
: the FormData object which is passed via XHR2 (or empty object if not available).response
: the aborted data sent when returned when triggering the validation error from the source event.files
: the file stack array (or empty object if not available).extra
: theuploadExtraData
settings for the plugin (or empty object if not available).reader
: the FileReader instance if availablejqXHR
: thejQuery XMLHttpRequest
object used for this transaction (an empty object usually).
$("#input").on('filecustomerror', function(event, params) {
console.log(params.id);
console.log(params.index);
console.log(params.data);
});
With release v4.1.8, you can return data for most of the events and use it for advanced processing. This functionality is not applicable for the following events.
fileclear
filecleared
filereset
fileerror
fileuploaderror
filebatchuploaderror
filedeleteerror
filefoldererror
filecustomerror
fileuploaded
filebatchuploadcomplete
filebatchuploadsuccess
For all the events other than ones mentioned above, you can set a custom validation error which will be triggered just before upload is initiated.
This will enable you to add your additional custom validations to enhance the fileinput to be used for innumerous scenarios. It will allow an ability to return an associative object with any of the fileinput events (except the events above) e.g. change
, fileselect
, filepreupload
, filebatchpreupload
etc.
The object can return the following keys:
message
: string, the validation error message to be displayed before upload. If this is set the plugin will automatically abort the upload whenever called and display this as an error message. You can use this property for example to read a file and perform your own custom validation.data
: object, an optional associative array of additional data at abort, that you can pass for usage later.
Example
- STEP 1: You can trigger an error to abort from
filepreupload
$('#input').on('filepreupload', function(event, data, previewId, index, jqXHR) {
// do your validation and return an error like below
if (customValidationFailed) {
return {
message: 'You are not allowed to do that',
data: {key1: 'Key 1', detail1: 'Detail 1'}
};
}
});
The above abort will be triggered at time of upload for (ajax uploads) OR at form submission (for non-ajax uploads).
- STEP 2: Reading additional data at abort by trapping the
filecustomerror
event
$('#input').on('filecustomerror', function(event, params) {
// params.abortData will contain the additional abort data passed
});
As mentioned before, the above functionality of raising a filecustomerror
is not supported in the following events:
fileclear
filecleared
filereset
fileerror
fileuploaderror
filebatchuploaderror
filedeleteerror
filecustomerror
fileuploaded
filebatchuploadcomplete
filebatchuploadsuccess
The plugin supports these methods:
Disable the file input.
$('#input-id').fileinput('disable');
Enable the file input.
$('#input-id').fileinput('enable');
Reset the file input.
$('#input-id').fileinput('reset');
Refreshes the file input plugin based on options provided. You can supply an array of plugin options as a parameter.
// example 1 (disable at runtime)
$('#input-id').attr('disabled', 'disabled');
$('#input-id').fileinput('refresh');
// example 2 (modify plugin options at runtime)
$('#input-id').fileinput('refresh', {browseLabel: 'Select...', removeLabel: 'Delete'});
Clear the file input and all files from preview.
$('#input-id').fileinput('clear');
Trigger ajax upload of the files that are selected. Applicable only if uploadUrl
is set.
$('#input-id').fileinput('upload');
Cancel an ongoing ajax upload of the files.
$('#input-id').fileinput('cancel');
Locks the file input by disabling all actions/buttons except a cancel button to abort ongoing AJAX requests (for ajax uploads only).
$('#input-id').fileinput('lock');
Unlocks and enables the file input back again by reversing the outcome of the lock
action.
$('#input-id').fileinput('unlock');
bootstrap-fileinput is released under the BSD 3-Clause License. See the bundled LICENSE.md
for details.