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menu_resizer.ts
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menu_resizer.ts
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import $ from 'jquery';
import getImageTag from './modules/functions/getImageTag.ts';
/**
* Handles the resizing of a menu according to the available screen width
*
* Uses themes/original/css/resizable-menu.css.php
*
* To initialize:
* $('#myMenu').menuResizer(function () {
* // This function will be called to find out how much
* // available horizontal space there is for the menu
* return $('body').width() - 5; // Some extra margin for good measure
* });
*
* To trigger a resize operation:
* $('#myMenu').menuResizer('resize'); // Bind this to $(window).resize()
*
* To restore the menu to a state like before it was initialized:
* $('#myMenu').menuResizer('destroy');
*
* @package PhpMyAdmin
*/
(function ($) {
function MenuResizer ($container, widthCalculator) {
var self = this;
self.$container = $container;
self.widthCalculator = widthCalculator;
var windowWidth = $(window).width();
if (windowWidth < 768) {
$('#pma_navigation_resizer').css({ 'width': '0px' });
}
// create submenu container
var link = $('<a></a>', {
'href': '#',
'class': 'nav-link dropdown-toggle',
'id': 'navbarDropdown',
'role': 'button',
'data-bs-toggle': 'dropdown',
'aria-haspopup': 'true',
'aria-expanded': 'false'
}).text(window.Messages.strMore);
var img = $container.find('li img');
if (img.length) {
$(getImageTag('b_more').toString()).prependTo(link);
}
var $submenu = $('<li></li>', { 'class': 'nav-item dropdown d-none' })
.append(link)
.append($('<ul></ul>', {
'class': 'dropdown-menu dropdown-menu-end',
'aria-labelledby': 'navbarDropdown'
}));
$container.append($submenu);
setTimeout(function () {
self.resize();
}, 4);
}
MenuResizer.prototype.resize = function () {
var wmax = this.widthCalculator.call(this.$container);
var windowWidth = $(window).width();
var $submenu = this.$container.find('.nav-item.dropdown').last();
var submenuW = $submenu.outerWidth(true);
var $submenuUl = $submenu.find('.dropdown-menu');
var $li = this.$container.find('> li');
var $li2 = $submenuUl.find('.dropdown-item');
var moreShown = $li2.length > 0;
// Calculate the total width used by all the shown tabs
var totalLen = moreShown ? submenuW : 0;
var l = $li.length - 1;
var i;
for (i = 0; i < l; i++) {
totalLen += $($li[i]).outerWidth(true);
}
// eslint-disable-next-line compat/compat
var hasVScroll = document.body.scrollHeight > document.body.clientHeight;
if (hasVScroll) {
windowWidth += 15;
}
if (windowWidth < 768) {
wmax = 2000;
}
// Now hide menu elements that don't fit into the menubar
var hidden = false; // Whether we have hidden any tabs
while (totalLen >= wmax && --l >= 0) { // Process the tabs backwards
hidden = true;
var el = $($li[l]);
el.removeClass('nav-item').addClass('dropdown-item');
var elWidth = el.outerWidth(true);
el.data('width', elWidth);
if (! moreShown) {
totalLen -= elWidth;
el.prependTo($submenuUl);
totalLen += submenuW;
moreShown = true;
} else {
totalLen -= elWidth;
el.prependTo($submenuUl);
}
}
// If we didn't hide any tabs, then there might be some space to show some
if (! hidden) {
// Show menu elements that do fit into the menubar
for (i = 0, l = $li2.length; i < l; i++) {
totalLen += $($li2[i]).data('width');
// item fits or (it is the last item
// and it would fit if More got removed)
if (totalLen < wmax ||
(i === $li2.length - 1 && totalLen - submenuW < wmax)
) {
$($li2[i]).removeClass('dropdown-item').addClass('nav-item');
$($li2[i]).insertBefore($submenu);
} else {
break;
}
}
}
// Show/hide the "More" tab as needed
if (windowWidth < 768) {
$('.navbar-collapse').css({ 'width': windowWidth - 80 - $('#pma_navigation').width() });
$submenu.addClass('d-none');
$('.navbar-collapse').css({ 'overflow': 'hidden' });
} else {
$('.navbar-collapse').css({ 'width': 'auto' });
$('.navbar-collapse').css({ 'overflow': 'visible' });
if ($submenuUl.find('li').length > 0) {
$submenu.removeClass('d-none');
} else {
$submenu.addClass('d-none');
}
}
};
MenuResizer.prototype.destroy = function () {
var $submenu = this.$container.find('.nav-item.dropdown').removeData();
$submenu.find('li').appendTo(this.$container);
$submenu.remove();
};
/** Public API */
var methods = {
init: function (widthCalculator) {
return this.each(function () {
var $this = $(this);
if (! $this.data('menuResizer')) {
$this.data(
'menuResizer',
new MenuResizer($this, widthCalculator)
);
}
});
},
resize: function () {
return this.each(function () {
var self = $(this).data('menuResizer');
if (self) {
self.resize();
}
});
},
destroy: function () {
return this.each(function () {
var self = $(this).data('menuResizer');
if (self) {
self.destroy();
}
});
}
};
/**
* Extend jQuery
*
* @param {string|Function} method
*
* @return {any}
*/
$.fn.menuResizer = function (method) {
if (methods[method]) {
return methods[method].call(this);
} else if (typeof method === 'function') {
return methods.init.apply(this, [method]);
} else {
$.error('Method ' + method + ' does not exist on jQuery.menuResizer');
}
};
}($));