File "jquery.sortable-table.js"
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/**
* This file is internal to phpMyAdmin.
* @license see the main phpMyAdmin license.
*
* @fileoverview A jquery plugin that allows drag&drop sorting in tables.
* Coded because JQuery UI sortable doesn't support tables. Also it has no animation
*
* @name Sortable Table JQuery plugin
*
* @requires jQuery
*/
/**
* Options:
*
* $('table').sortableTable({
* ignoreRect: { top, left, width, height } - Relative coordinates on each element. If the user clicks
* in this area, it is not seen as a drag&drop request. Useful for toolbars etc.
* events: {
* start: callback function when the user starts dragging
* drop: callback function after an element has been dropped
* }
* })
*/
/**
* Commands:
*
* $('table').sortableTable('init') - equivalent to $('table').sortableTable()
* $('table').sortableTable('refresh') - if the table has been changed, refresh correctly assigns all events again
* $('table').sortableTable('destroy') - removes all events from the table
*/
/**
* Setup:
*
* Can be applied on any table, there is just one convention.
* Each cell (<td>) has to contain one and only one element (preferably div or span)
* which is the actually draggable element.
*/
(function ($) {
jQuery.fn.sortableTable = function (method) {
var methods = {
init: function (options) {
var tb = new SortableTableInstance(this, options);
tb.init();
$(this).data('sortableTable', tb);
},
refresh: function () {
$(this).data('sortableTable').refresh();
},
destroy: function () {
$(this).data('sortableTable').destroy();
}
};
if (methods[method]) {
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof method === 'object' || !method) {
return methods.init.apply(this, arguments);
} else {
$.error('Method ' + method + ' does not exist on jQuery.sortableTable');
}
function SortableTableInstance(table) {
let options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var down = false;
var $draggedEl;
var oldCell;
var previewMove;
var id;
/* Mouse handlers on the child elements */
var onMouseUp = function (e) {
dropAt(e.pageX, e.pageY);
};
var onMouseDown = function (e) {
$draggedEl = $(this).children();
if ($draggedEl.length === 0) {
return;
}
if (options.ignoreRect && insideRect({
x: e.pageX - $draggedEl.offset().left,
y: e.pageY - $draggedEl.offset().top
}, options.ignoreRect)) {
return;
}
down = true;
oldCell = this;
if (options.events && options.events.start) {
options.events.start(this);
}
return false;
};
var globalMouseMove = function (e) {
if (down) {
move(e.pageX, e.pageY);
if (inside($(oldCell), e.pageX, e.pageY)) {
if (previewMove !== null) {
moveTo(previewMove);
previewMove = null;
}
} else {
$(table).find('td').each(function () {
if (inside($(this), e.pageX, e.pageY)) {
if ($(previewMove).attr('class') !== $(this).children().first().attr('class')) {
if (previewMove !== null) {
moveTo(previewMove);
}
previewMove = $(this).children().first();
if (previewMove.length > 0) {
moveTo($(previewMove), {
pos: {
top: $(oldCell).offset().top - $(previewMove).parent().offset().top,
left: $(oldCell).offset().left - $(previewMove).parent().offset().left
}
});
}
}
return false;
}
});
}
}
return false;
};
var globalMouseOut = function () {
if (down) {
down = false;
if (previewMove) {
moveTo(previewMove);
}
moveTo($draggedEl);
previewMove = null;
}
};
// Initialize sortable table
this.init = function () {
id = 1;
// Add some required css to each child element in the <td>s
$(table).find('td').children().each(function () {
// Remove any old occurrences of our added draggable-num class
$(this).attr('class', $(this).attr('class').replace(/\s*draggable-\d+/g, ''));
$(this).addClass('draggable-' + id++);
});
// Mouse events
$(table).find('td').on('mouseup', onMouseUp);
$(table).find('td').on('mousedown', onMouseDown);
$(document).on('mousemove', globalMouseMove);
$(document).on('mouseleave', globalMouseOut);
};
// Call this when the table has been updated
this.refresh = function () {
this.destroy();
this.init();
};
this.destroy = function () {
// Add some required css to each child element in the <td>s
$(table).find('td').children().each(function () {
// Remove any old occurrences of our added draggable-num class
$(this).attr('class', $(this).attr('class').replace(/\s*draggable-\d+/g, ''));
});
// Mouse events
$(table).find('td').off('mouseup', onMouseUp);
$(table).find('td').off('mousedown', onMouseDown);
$(document).off('mousemove', globalMouseMove);
$(document).off('mouseleave', globalMouseOut);
};
function switchElement(drag, dropTo) {
var dragPosDiff = {
left: $(drag).children().first().offset().left - $(dropTo).offset().left,
top: $(drag).children().first().offset().top - $(dropTo).offset().top
};
var dropPosDiff = null;
if ($(dropTo).children().length > 0) {
dropPosDiff = {
left: $(dropTo).children().first().offset().left - $(drag).offset().left,
top: $(dropTo).children().first().offset().top - $(drag).offset().top
};
}
/* I love you append(). It moves the DOM Elements so gracefully <3 */
// Put the element in the way to old place
$(drag).append($(dropTo).children().first()).children().stop(true, true).on('mouseup', onMouseUp);
if (dropPosDiff) {
$(drag).append($(dropTo).children().first()).children().css('left', dropPosDiff.left + 'px').css('top', dropPosDiff.top + 'px');
}
// Put our dragged element into the space we just freed up
$(dropTo).append($(drag).children().first()).children().on('mouseup', onMouseUp).css('left', dragPosDiff.left + 'px').css('top', dragPosDiff.top + 'px');
moveTo($(dropTo).children().first(), {
duration: 100
});
moveTo($(drag).children().first(), {
duration: 100
});
if (options.events && options.events.drop) {
// Drop event. The drag child element is moved into the drop element
// and vice versa. So the parameters are switched.
// Calculate row and column index
const colIdx = $(dropTo).prevAll().length;
const rowIdx = $(dropTo).parent().prevAll().length;
options.events.drop(drag, dropTo, {
col: colIdx,
row: rowIdx
});
}
}
function move(x, y) {
$draggedEl.offset({
top: Math.min($(document).height(), Math.max(0, y - $draggedEl.height() / 2)),
left: Math.min($(document).width(), Math.max(0, x - $draggedEl.width() / 2))
});
}
function inside($el, x, y) {
var off = $el.offset();
return y >= off.top && x >= off.left && x < off.left + $el.width() && y < off.top + $el.height();
}
function insideRect(pos, r) {
return pos.y > r.top && pos.x > r.left && pos.y < r.top + r.height && pos.x < r.left + r.width;
}
function dropAt(x, y) {
if (!down) {
return;
}
down = false;
var switched = false;
$(table).find('td').each(function () {
if ($(this).children().first().attr('class') !== $(oldCell).children().first().attr('class') && inside($(this), x, y)) {
switchElement(oldCell, this);
switched = true;
}
});
if (!switched) {
if (previewMove) {
moveTo(previewMove);
}
moveTo($draggedEl);
}
previewMove = null;
}
function moveTo(elem) {
let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
if (!opts.pos) {
opts.pos = {
left: 0,
top: 0
};
}
if (!opts.duration) {
opts.duration = 200;
}
$(elem).css('position', 'relative');
$(elem).animate({
top: opts.pos.top,
left: opts.pos.left
}, {
duration: opts.duration,
complete: function () {
if (opts.pos.left === 0 && opts.pos.top === 0) {
$(elem).css('position', '').css('left', '').css('top', '');
}
}
});
}
}
};
})(jQuery);