134 lines
No EOL
4.6 KiB
JavaScript
134 lines
No EOL
4.6 KiB
JavaScript
/**
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Reference:
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http://www.onextrapixel.com/2012/12/10/how-to-create-a-custom-file-input-with-jquery-css3-and-php/
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http://codepen.io/wallaceerick/pen/fEdrz
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DO NOT REPLACE! MODIFIED FOR BOOTSTRAP! [Dorin grigoras - www.stepofweb.com]
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**/
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;(function($) {
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// Browser supports HTML5 multiple file?
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var multipleSupport = typeof jQuery('<input/>')[0].multiple !== 'undefined',
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isIE = /msie/i.test( navigator.userAgent );
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jQuery.fn.customFile = function() {
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return this.each(function() {
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var $file = jQuery(this).addClass('custom-file-upload-hidden'), // the original file input
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$wrap = jQuery('<div class="input-group"><span class="input-group-addon"><i class="fa fa-paperclip"></i></span>'),
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$input = jQuery('<input type="text" class="form-control file-upload-input text-left" />'),
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// Button that will be used in non-IE browsers
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$button = jQuery('<span class="input-group-btn"><button type="button" class="file-upload-button btn btn-primary">' + jQuery(this).attr('data-btn-text') + '</button></span>'),
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// Hack for IE
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$label = jQuery('<label class="file-upload-button" for="'+ $file[0].id +'">' + jQuery(this).attr('data-btn-text') + '<</label>');
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// Hide by shifting to the left so we
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// can still trigger events
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$file.css({
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position: 'absolute',
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left: '-9999px'
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});
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$wrap.insertAfter( $file )
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.append( $file, $input, ( isIE ? $label : $button ) );
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// Prevent focus
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$file.attr('tabIndex', -1);
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$button.attr('tabIndex', -1);
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$button.click(function () {
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$file.focus().click(); // Open dialog
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});
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$file.change(function() {
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var files = [], fileArr, filename;
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// If multiple is supported then extract
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// all filenames from the file array
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if ( multipleSupport ) {
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fileArr = $file[0].files;
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for ( var i = 0, len = fileArr.length; i < len; i++ ) {
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files.push( fileArr[i].name );
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}
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filename = files.join(', ');
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// If not supported then just take the value
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// and remove the path to just show the filename
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} else {
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filename = $file.val().split('\\').pop();
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}
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$input.val( filename ) // Set the value
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.attr('title', filename) // Show filename in title tootlip
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.focus(); // Regain focus
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});
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$input.on({
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blur: function() { $file.trigger('blur'); },
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keydown: function( e ) {
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if ( e.which === 13 ) { // Enter
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if ( !isIE ) { $file.trigger('click'); }
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} else if ( e.which === 8 || e.which === 46 ) { // Backspace & Del
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// On some browsers the value is read-only
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// with this trick we remove the old input and add
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// a clean clone with all the original events attached
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$file.replaceWith( $file = $file.clone( true ) );
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$file.trigger('change');
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$input.val('');
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} else if ( e.which === 9 ){ // TAB
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return;
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} else { // All other keys
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return false;
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}
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}
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});
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});
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};
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// Old browser fallback
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if ( !multipleSupport ) {
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jQuery( document ).on('change', 'input.customfile', function() {
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var $this = jQuery(this),
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// Create a unique ID so we
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// can attach the label to the input
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uniqId = 'customfile_'+ (new Date()).getTime(),
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$wrap = $this.parent(),
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// Filter empty input
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$inputs = $wrap.siblings().find('.file-upload-input')
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.filter(function(){ return !this.value }),
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$file = jQuery('<input type="file" id="'+ uniqId +'" name="'+ $this.attr('name') +'"/>');
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// 1ms timeout so it runs after all other events
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// that modify the value have triggered
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setTimeout(function() {
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// Add a new input
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if ( $this.val() ) {
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// Check for empty fields to prevent
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// creating new inputs when changing files
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if ( !$inputs.length ) {
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$wrap.after( $file );
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$file.customFile();
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}
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// Remove and reorganize inputs
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} else {
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$inputs.parent().remove();
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// Move the input so it's always last on the list
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$wrap.appendTo( $wrap.parent() );
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$wrap.find('input').focus();
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}
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}, 1);
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});
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}
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}(jQuery));
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jQuery('input[type=file].custom-file-upload').customFile(); |