woocommerce/assets/js/frontend/add-to-cart-variation.js

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/*global wc_add_to_cart_variation_params, wc_cart_fragments_params */
/*!
* Variations Plugin
*/
;(function ( $, window, document, undefined ) {
$.fn.wc_variation_form = function() {
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var $form = this,
$single_variation = $form.find( '.single_variation' ),
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$product = $form.closest( '.product' ),
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$product_id = parseInt( $form.data( 'product_id' ), 10 ),
$product_variations = $form.data( 'product_variations' ),
$use_ajax = $product_variations === false,
$xhr = false,
$reset_variations = $form.find( '.reset_variations' ),
template = wp.template( 'variation-template' ),
unavailable_template = wp.template( 'unavailable-variation-template' ),
$single_variation_wrap = $form.find( '.single_variation_wrap' );
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// Always visible since 2.5.0
$single_variation_wrap.show();
// Unbind any existing events
$form.unbind( 'check_variations update_variation_values found_variation' );
$form.find( '.reset_variations' ).unbind( 'click' );
$form.find( '.variations select' ).unbind( 'change focusin' );
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// Bind new events to form
$form
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// On clicking the reset variation button
.on( 'click', '.reset_variations', function( event ) {
event.preventDefault();
$form.find( '.variations select' ).val( '' ).change();
$form.trigger( 'reset_data' );
} )
// When the variation is hidden
.on( 'hide_variation', function( event ) {
event.preventDefault();
$form.find( '.single_add_to_cart_button' ).removeClass( 'wc-variation-is-unavailable' ).addClass( 'disabled wc-variation-selection-needed' );
$form.find( '.woocommerce-variation-add-to-cart' ).removeClass( 'woocommerce-variation-add-to-cart-enabled' ).addClass( 'woocommerce-variation-add-to-cart-disabled' );
} )
// When the variation is revealed
.on( 'show_variation', function( event, variation, purchasable ) {
event.preventDefault();
if ( purchasable ) {
$form.find( '.single_add_to_cart_button' ).removeClass( 'disabled wc-variation-selection-needed wc-variation-is-unavailable' );
$form.find( '.woocommerce-variation-add-to-cart' ).removeClass( 'woocommerce-variation-add-to-cart-disabled' ).addClass( 'woocommerce-variation-add-to-cart-enabled' );
} else {
$form.find( '.single_add_to_cart_button' ).removeClass( 'wc-variation-selection-needed' ).addClass( 'disabled wc-variation-is-unavailable' );
$form.find( '.woocommerce-variation-add-to-cart' ).removeClass( 'woocommerce-variation-add-to-cart-enabled' ).addClass( 'woocommerce-variation-add-to-cart-disabled' );
}
} )
.on( 'click', '.single_add_to_cart_button', function( event ) {
var $this = $( this );
if ( $this.is('.disabled') ) {
event.preventDefault();
if ( $this.is('.wc-variation-is-unavailable') ) {
window.alert( wc_add_to_cart_variation_params.i18n_unavailable_text );
} else if ( $this.is('.wc-variation-selection-needed') ) {
window.alert( wc_add_to_cart_variation_params.i18n_make_a_selection_text );
}
}
} )
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// Reload product variations data
.on( 'reload_product_variations', function() {
$product_variations = $form.data( 'product_variations' );
$use_ajax = $product_variations === false;
} )
// Reset product data
.on( 'reset_data', function() {
$product.find( '.product_meta' ).find( '.sku' ).wc_reset_content();
$('.product_weight').wc_reset_content();
$('.product_dimensions').wc_reset_content();
$form.trigger( 'reset_image' );
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$single_variation.slideUp( 200 ).trigger( 'hide_variation' );
} )
// Reset product image
.on( 'reset_image', function() {
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$form.wc_variations_image_update( false );
} )
// On changing an attribute
.on( 'change', '.variations select', function() {
$form.find( 'input[name="variation_id"], input.variation_id' ).val( '' ).change();
$form.find( '.wc-no-matching-variations' ).remove();
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if ( $use_ajax ) {
if ( $xhr ) {
$xhr.abort();
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}
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var all_attributes_chosen = true;
var some_attributes_chosen = false;
var data = {};
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$form.find( '.variations select' ).each( function() {
var attribute_name = $( this ).data( 'attribute_name' ) || $( this ).attr( 'name' );
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if ( $( this ).val().length === 0 ) {
all_attributes_chosen = false;
} else {
some_attributes_chosen = true;
}
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data[ attribute_name ] = $( this ).val();
});
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if ( all_attributes_chosen ) {
// Get a matchihng variation via ajax
data.product_id = $product_id;
$( '.variations_form' ).block({
message: null,
overlayCSS: {
background: '#fff',
opacity: 0.6
}
});
$xhr = $.ajax( {
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url: wc_cart_fragments_params.wc_ajax_url.toString().replace( '%%endpoint%%', 'get_variation' ),
type: 'POST',
data: data,
success: function( variation ) {
if ( variation ) {
$form.trigger( 'found_variation', [ variation ] );
} else {
$form.trigger( 'reset_data' );
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$form.find( '.single_variation' ).after( '<p class="wc-no-matching-variations woocommerce-info">' + wc_add_to_cart_variation_params.i18n_no_matching_variations_text + '</p>' );
$form.find( '.wc-no-matching-variations' ).slideDown( 200 );
}
},
complete: function() {
$( '.variations_form' ).unblock();
}
} );
} else {
$form.trigger( 'reset_data' );
}
if ( some_attributes_chosen ) {
if ( $reset_variations.css( 'visibility' ) === 'hidden' ) {
$reset_variations.css( 'visibility', 'visible' ).hide().fadeIn();
}
} else {
$reset_variations.css( 'visibility', 'hidden' );
}
} else {
$form.trigger( 'woocommerce_variation_select_change' );
$form.trigger( 'check_variations', [ '', false ] );
$( this ).blur();
}
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// added to get around variation image flicker issue
$( '.product.has-default-attributes > .images' ).fadeTo( 200, 1 );
// Custom event for when variation selection has been changed
$form.trigger( 'woocommerce_variation_has_changed' );
} )
// Upon gaining focus
.on( 'focusin touchstart', '.variations select', function() {
$( this ).find( 'option:selected' ).attr( 'selected', 'selected' );
if ( ! $use_ajax ) {
$form.trigger( 'woocommerce_variation_select_focusin' );
$form.trigger( 'check_variations', [ $( this ).data( 'attribute_name' ) || $( this ).attr( 'name' ), true ] );
}
} )
// Show single variation details (price, stock, image)
.on( 'found_variation', function( event, variation ) {
var $sku = $product.find( '.product_meta' ).find( '.sku' ),
$weight = $product.find( '.product_weight' ),
$dimensions = $product.find( '.product_dimensions' ),
$qty = $single_variation_wrap.find( '.quantity' ),
purchasable = true;
// Display SKU
if ( variation.sku ) {
$sku.wc_set_content( variation.sku );
} else {
$sku.wc_reset_content();
}
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// Display weight
if ( variation.weight ) {
$weight.wc_set_content( variation.weight );
} else {
$weight.wc_reset_content();
}
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// Display dimensions
if ( variation.dimensions ) {
$dimensions.wc_set_content( variation.dimensions );
} else {
$dimensions.wc_reset_content();
}
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// Show images
$form.wc_variations_image_update( variation );
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// Output correct templates
var $template_html = '';
if ( ! variation.variation_is_visible ) {
$template_html = unavailable_template();
// w3 total cache inline minification adds CDATA tags around our HTML (sigh)
$template_html = $template_html.replace( '/*<![CDATA[*/', '' );
$template_html = $template_html.replace( '/*]]>*/', '' );
$single_variation.html( $template_html );
$form.find( 'input[name="variation_id"], input.variation_id' ).val( '' ).change();
} else {
$template_html = template( {
variation: variation
} );
// w3 total cache inline minification adds CDATA tags around our HTML (sigh)
$template_html = $template_html.replace( '/*<![CDATA[*/', '' );
$template_html = $template_html.replace( '/*]]>*/', '' );
$single_variation.html( $template_html );
$form.find( 'input[name="variation_id"], input.variation_id' ).val( variation.variation_id ).change();
}
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// Hide or show qty input
if ( variation.is_sold_individually === 'yes' ) {
$qty.find( 'input.qty' ).val( '1' ).attr( 'min', '1' ).attr( 'max', '' );
$qty.hide();
} else {
$qty.find( 'input.qty' ).attr( 'min', variation.min_qty ).attr( 'max', variation.max_qty );
$qty.show();
}
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// Enable or disable the add to cart button
if ( ! variation.is_purchasable || ! variation.is_in_stock || ! variation.variation_is_visible ) {
purchasable = false;
}
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// Reveal
if ( $.trim( $single_variation.text() ) ) {
$single_variation.slideDown( 200 ).trigger( 'show_variation', [ variation, purchasable ] );
} else {
$single_variation.show().trigger( 'show_variation', [ variation, purchasable ] );
}
})
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// Check variations
.on( 'check_variations', function( event, exclude, focus ) {
if ( $use_ajax ) {
return;
}
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var all_attributes_chosen = true,
some_attributes_chosen = false,
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current_settings = {},
$form = $( this ),
$reset_variations = $form.find( '.reset_variations' );
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$form.find( '.variations select' ).each( function() {
var attribute_name = $( this ).data( 'attribute_name' ) || $( this ).attr( 'name' );
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if ( $( this ).val().length === 0 ) {
all_attributes_chosen = false;
} else {
some_attributes_chosen = true;
}
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if ( exclude && attribute_name === exclude ) {
all_attributes_chosen = false;
current_settings[ attribute_name ] = '';
} else {
// Add to settings array
current_settings[ attribute_name ] = $( this ).val();
}
});
var matching_variations = wc_variation_form_matcher.find_matching_variations( $product_variations, current_settings );
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if ( all_attributes_chosen ) {
var variation = matching_variations.shift();
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if ( variation ) {
$form.trigger( 'found_variation', [ variation ] );
} else {
// Nothing found - reset fields
$form.find( '.variations select' ).val( '' );
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if ( ! focus ) {
$form.trigger( 'reset_data' );
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}
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window.alert( wc_add_to_cart_variation_params.i18n_no_matching_variations_text );
}
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} else {
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$form.trigger( 'update_variation_values', [ matching_variations ] );
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if ( ! focus ) {
$form.trigger( 'reset_data' );
}
if ( ! exclude ) {
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$single_variation.slideUp( 200 ).trigger( 'hide_variation' );
}
}
if ( some_attributes_chosen ) {
if ( $reset_variations.css( 'visibility' ) === 'hidden' ) {
$reset_variations.css( 'visibility', 'visible' ).hide().fadeIn();
}
} else {
$reset_variations.css( 'visibility', 'hidden' );
}
} )
// Disable option fields that are unavaiable for current set of attributes
.on( 'update_variation_values', function( event, variations ) {
if ( $use_ajax ) {
return;
}
// Loop through selects and disable/enable options based on selections
$form.find( '.variations select' ).each( function( index, el ) {
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var current_attr_name, current_attr_select = $( el );
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// Reset options
if ( ! current_attr_select.data( 'attribute_options' ) ) {
current_attr_select.data( 'attribute_options', current_attr_select.find( 'option:gt(0)' ).get() );
}
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current_attr_select.find( 'option:gt(0)' ).remove();
current_attr_select.append( current_attr_select.data( 'attribute_options' ) );
current_attr_select.find( 'option:gt(0)' ).removeClass( 'attached' );
current_attr_select.find( 'option:gt(0)' ).removeClass( 'enabled' );
current_attr_select.find( 'option:gt(0)' ).removeAttr( 'disabled' );
// Get name from data-attribute_name, or from input name if it doesn't exist
if ( typeof( current_attr_select.data( 'attribute_name' ) ) !== 'undefined' ) {
current_attr_name = current_attr_select.data( 'attribute_name' );
} else {
current_attr_name = current_attr_select.attr( 'name' );
}
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// Loop through variations
for ( var num in variations ) {
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if ( typeof( variations[ num ] ) !== 'undefined' ) {
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var attributes = variations[ num ].attributes;
for ( var attr_name in attributes ) {
if ( attributes.hasOwnProperty( attr_name ) ) {
var attr_val = attributes[ attr_name ];
if ( attr_name === current_attr_name ) {
var variation_active = '';
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if ( variations[ num ].variation_is_active ) {
variation_active = 'enabled';
}
if ( attr_val ) {
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// Decode entities
attr_val = $( '<div/>' ).html( attr_val ).text();
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// Add slashes
attr_val = attr_val.replace( /'/g, '\\\'' );
attr_val = attr_val.replace( /"/g, '\\\"' );
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// Compare the meerkat
current_attr_select.find( 'option[value="' + attr_val + '"]' ).addClass( 'attached ' + variation_active );
} else {
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current_attr_select.find( 'option:gt(0)' ).addClass( 'attached ' + variation_active );
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}
}
}
}
}
}
// Detach unattached
current_attr_select.find( 'option:gt(0):not(.attached)' ).remove();
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// Grey out disabled
current_attr_select.find( 'option:gt(0):not(.enabled)' ).attr( 'disabled', 'disabled' );
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});
// Custom event for when variations have been updated
$form.trigger( 'woocommerce_update_variation_values' );
});
$form.trigger( 'wc_variation_form' );
return $form;
};
/**
* Matches inline variation objects to chosen attributes
* @type {Object}
*/
var wc_variation_form_matcher = {
find_matching_variations: function( product_variations, settings ) {
var matching = [];
for ( var i = 0; i < product_variations.length; i++ ) {
var variation = product_variations[i];
if ( wc_variation_form_matcher.variations_match( variation.attributes, settings ) ) {
matching.push( variation );
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}
}
return matching;
},
variations_match: function( attrs1, attrs2 ) {
var match = true;
for ( var attr_name in attrs1 ) {
if ( attrs1.hasOwnProperty( attr_name ) ) {
var val1 = attrs1[ attr_name ];
var val2 = attrs2[ attr_name ];
if ( val1 !== undefined && val2 !== undefined && val1.length !== 0 && val2.length !== 0 && val1 !== val2 ) {
match = false;
}
}
}
return match;
}
};
/**
* Stores the default text for an element so it can be reset later
*/
$.fn.wc_set_content = function( content ) {
if ( undefined === this.attr( 'data-o_content' ) ) {
this.attr( 'data-o_content', this.text() );
}
this.text( content );
};
/**
* Stores the default text for an element so it can be reset later
*/
$.fn.wc_reset_content = function() {
if ( undefined !== this.attr( 'data-o_content' ) ) {
this.text( this.attr( 'data-o_content' ) );
}
};
/**
* Stores a default attribute for an element so it can be reset later
*/
$.fn.wc_set_variation_attr = function( attr, value ) {
if ( undefined === this.attr( 'data-o_' + attr ) ) {
this.attr( 'data-o_' + attr, ( ! this.attr( attr ) ) ? '' : this.attr( attr ) );
}
this.attr( attr, value );
};
/**
* Reset a default attribute for an element so it can be reset later
*/
$.fn.wc_reset_variation_attr = function( attr ) {
if ( undefined !== this.attr( 'data-o_' + attr ) ) {
this.attr( attr, this.attr( 'data-o_' + attr ) );
}
};
/**
* Sets product images for the chosen variation
*/
$.fn.wc_variations_image_update = function( variation ) {
var $form = this,
$product = $form.closest('.product'),
$product_img = $product.find( 'div.images img:eq(0)' ),
$product_link = $product.find( 'div.images a.zoom:eq(0)' );
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if ( variation && variation.image_src && variation.image_src.length > 1 ) {
$product_img.wc_set_variation_attr( 'src', variation.image_src );
$product_img.wc_set_variation_attr( 'title', variation.image_title );
$product_img.wc_set_variation_attr( 'alt', variation.image_alt );
$product_img.wc_set_variation_attr( 'srcset', variation.image_srcset );
$product_img.wc_set_variation_attr( 'sizes', variation.image_sizes );
$product_link.wc_set_variation_attr( 'href', variation.image_link );
$product_link.wc_set_variation_attr( 'title', variation.image_caption );
} else {
$product_img.wc_reset_variation_attr( 'src' );
$product_img.wc_reset_variation_attr( 'title' );
$product_img.wc_reset_variation_attr( 'alt' );
$product_img.wc_reset_variation_attr( 'srcset' );
$product_img.wc_reset_variation_attr( 'sizes' );
$product_link.wc_reset_variation_attr( 'href' );
$product_link.wc_reset_variation_attr( 'title' );
}
};
$( function() {
if ( typeof wc_add_to_cart_variation_params !== 'undefined' ) {
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$( '.variations_form' ).each( function() {
$( this ).wc_variation_form().find('.variations select:eq(0)').change();
});
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}
});
})( jQuery, window, document );