webseite-grav/plugins/admin/themes/grav/app/forms/fields/multilevel.js

282 lines
11 KiB
JavaScript

import $ from 'jquery';
$(function() {
const getField = function getField(level, name) {
let levelMargin = level * 50;
let top = (level === 0 ? 'top' : '');
let the_name = 'name="' + name + '"';
if (level === 0) {
// top
the_name = 'data-attr-name="' + name + '"';
}
const marginDir = window.getComputedStyle(document.body).direction === 'ltr' ? 'margin-left' : 'margin-right';
let field = `
<div class="element-wrapper">
<div class="form-row array-field-value_only js__multilevel-field ${top}"
data-grav-array-type="row">
<input
type="text"
${the_name}
placeholder="Enter value"
style="${marginDir}: ${levelMargin}px"
value="" />
<span class="fa fa-minus js__remove-item"></span>
<span class="fa fa-plus js__add-sibling hidden" data-level="${level}" ></span>
<span class="fa fa-plus-circle js__add-children hidden" data-level="${level}"></span>
</div>
</div>
`;
return field;
};
const hasChildInputs = function hasChildInputs($element) {
if ($element.attr('name')) {
return false;
}
return true;
};
const getTopItems = function getTopItems(element) {
return $(element + ' .js__multilevel-field.top');
};
const refreshControls = function refreshControls(unique_identifier) {
let element = '[data-grav-multilevel-field]';
if (unique_identifier) {
element = '[data-grav-multilevel-field][data-id="' + unique_identifier + '"]';
}
const hideButtons = function hideButtons() {
$(element + ' .js__add-sibling').addClass('hidden');
$(element + ' .js__add-children').addClass('hidden');
};
const restoreAddSiblingButtons = function restoreAddSiblingButtons() {
$(element + ' .children-wrapper').each(function() {
let elements = $(this).children();
elements.last().each(function() {
let field = $(this);
if (!$(this).hasClass('js__multilevel-field')) {
field = $(this).find('.js__multilevel-field').first();
}
field.find('.js__add-sibling').removeClass('hidden');
});
});
// add sibling to the last top element
$(element + ' .js__multilevel-field.top').last().find('.js__add-sibling').removeClass('hidden');
};
const restoreAddChildrenButtons = function restoreAddChildrenButtons() {
$(element + ' .js__multilevel-field').each(function() {
if ($(this).siblings('.children-wrapper').length === 0 || $(this).siblings('.children-wrapper').find('.js__multilevel-field').length === 0) {
$(this).find('.js__add-children').removeClass('hidden');
}
});
};
const preventRemovingLastTopItem = function preventRemovingLastTopItem() {
let top_items = getTopItems(element);
if (top_items.length === 1) {
top_items.first().find('.js__remove-item').addClass('hidden');
}
};
hideButtons();
restoreAddSiblingButtons();
restoreAddChildrenButtons();
preventRemovingLastTopItem();
};
const changeAllOccurrencesInTree = function($el, current_name, new_name) {
$el.parents('[data-grav-multilevel-field]').find('input').each(function() {
let $input = $(this);
if ($input.attr('name')) {
$input.attr('name', $input.attr('name').replace(current_name, new_name));
}
if ($input.attr('data-attr-name')) {
$input.attr('data-attr-name', $input.attr('data-attr-name').replace(current_name, new_name));
}
});
};
$(document).ready(function() {
refreshControls();
});
$(document).on('mouseleave', '[data-grav-multilevel-field]', function(event) {
let top_items = getTopItems('[data-id="' + $(this).data('id') + '"]');
let has_top_items_without_children = false;
let element_content = '';
top_items.each(function() {
let item = $(this);
if ($(item).siblings('.children-wrapper').find('input').length === 0) {
has_top_items_without_children = true;
element_content = item.find('input').val();
}
});
if (has_top_items_without_children) {
if (element_content) {
alert('Warning: if you save now, the element ' + element_content + ', without children, will be removed, because it\'s invalid YAML');
} else {
alert('Warning: if you save now, the top elements without children will be removed, because it\'s invalid YAML');
}
}
});
$(document).on('click', '[data-grav-multilevel-field] .js__add-children', function(event) {
let element = $(this);
let unique_container_id = element.closest('.js__multilevel-field').data('id');
let level = element.data('level') + 1;
const getParentOfElement = function getParentOfElement(element) {
let parent = element.closest('.js__multilevel-field').parent().first();
if (parent.find('.children-wrapper').length === 0) {
$(parent).append('<div class="children-wrapper"></div>');
}
parent = parent.find('.children-wrapper').first();
return parent;
};
const getNameFromParentInput = function getNameFromParentInput(parentInput, attr) {
if (parentInput.hasClass('children-wrapper')) {
parentInput = parentInput.siblings('.js__multilevel-field').first().find('input');
}
return parentInput.attr(attr) + '[' + parentInput.val() + ']';
};
const getInputFromChildrenWrapper = function getInputFromChildrenWrapper(parentChildrenWrapper) {
return parentChildrenWrapper.siblings('.js__multilevel-field').first().find('input');
};
let parentChildrenWrapper = getParentOfElement(element);
let parentInput = getInputFromChildrenWrapper(parentChildrenWrapper);
let attr = 'name';
if (parentInput.closest('.js__multilevel-field').hasClass('top')) {
attr = 'data-attr-name';
}
parentInput.attr(attr, parentInput.attr(attr).replace('[]', ''));
let name = getNameFromParentInput(parentInput, attr);
let field = getField(level, name);
$(parentChildrenWrapper).append(field);
refreshControls(unique_container_id);
});
$(document).on('click', '[data-grav-multilevel-field] .js__add-sibling', function(event) {
let element = $(this);
let unique_container_id = element.closest('.js__multilevel-field').data('id');
let level = element.data('level');
element.closest('.children-wrapper').find('.js__add-sibling').addClass('hidden');
let sibling = null;
let is_top = false;
if (element.closest('.js__multilevel-field').hasClass('top')) {
is_top = true;
}
if (is_top) {
sibling = element.closest('.js__multilevel-field').first().find('input').last();
} else {
sibling = element.siblings('input').first();
if (!sibling) {
sibling = element.closest('.children-wrapper').first().find('input').last();
}
}
const getParentOfElement = function getParentOfElement(element) {
let parent = element.closest('.js__multilevel-field').parent().first();
if (!parent.hasClass('element-wrapper')) {
if (parent.find('.element-wrapper').length === 0) {
$(parent).append('<div class="element-wrapper"></div>');
}
parent = parent.find('.element-wrapper').first();
}
return parent;
};
const getNameFromSibling = function getNameFromSibling(parent, sibling, is_top = false) {
let name = sibling.attr('name');
if (hasChildInputs(sibling)) {
let val = sibling.data('attr-name') + '[]';
sibling.removeAttr('name');
return val;
}
let last_index = name.lastIndexOf('[');
let almost_there = name.substr(last_index + 1);
let last_tag = almost_there.substr(0, almost_there.length - 1);
if ($.isNumeric(last_tag)) {
name = name.replace('[' + last_tag + ']', '[' + (parseInt(last_tag, 10) + 1) + ']');
} else {
if (is_top) {
name = name.replace('[' + last_tag + ']', '');
} else {
name = name + '[1]';
// change sibling name attr if necessary
if (sibling.attr('name').slice('-2') !== '[0]') {
changeAllOccurrencesInTree(sibling, sibling.attr('name'), sibling.attr('name') + '[0]');
}
}
}
return name;
};
let parent = getParentOfElement(element);
let name = getNameFromSibling(parent, sibling, is_top);
let field = getField(level, name);
$(field).insertAfter(parent);
refreshControls(unique_container_id);
});
$(document).on('click', '[data-grav-multilevel-field] .js__remove-item', function(event) {
$(this).parents('.element-wrapper').first().remove();
let unique_container_id = $(this).closest('.js__multilevel-field').data('id');
refreshControls(unique_container_id);
});
// Store old value before editing a field
$(document).on('focusin', '[data-grav-multilevel-field] input', function(event) {
$(this).data('current-value', $(this).val());
});
// Handle field edited event
$(document).on('change', '[data-grav-multilevel-field] input', function(event) {
let $el = $(this);
let old_value = $el.data('current-value');
let new_value = $el.val();
let full_name = $el.attr('name') || $el.attr('data-attr-name'); // first-level items have `data-attr-name` instead of `name`
let old_name_attr = full_name + '[' + old_value + ']';
let new_name_attr = full_name + '[' + new_value + ']';
changeAllOccurrencesInTree($el, old_name_attr, new_name_attr);
});
});