cccc/static/sg/plugins/slick.rowmovemanager.js

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2018-12-04 08:50:29 +00:00
(function ($) {
// register namespace
$.extend(true, window, {
"Slick": {
"RowMoveManager": RowMoveManager
}
});
function RowMoveManager(options) {
var _grid;
var _canvas;
var _dragging;
var _self = this;
var _handler = new Slick.EventHandler();
var _defaults = {
cancelEditOnDrag: false
};
function init(grid) {
options = $.extend(true, {}, _defaults, options);
_grid = grid;
_canvas = _grid.getCanvasNode();
_handler
.subscribe(_grid.onDragInit, handleDragInit)
.subscribe(_grid.onDragStart, handleDragStart)
.subscribe(_grid.onDrag, handleDrag)
.subscribe(_grid.onDragEnd, handleDragEnd);
}
function destroy() {
_handler.unsubscribeAll();
}
function handleDragInit(e, dd) {
// prevent the grid from cancelling drag'n'drop by default
e.stopImmediatePropagation();
}
function handleDragStart(e, dd) {
var cell = _grid.getCellFromEvent(e);
if (options.cancelEditOnDrag && _grid.getEditorLock().isActive()) {
_grid.getEditorLock().cancelCurrentEdit();
}
if (_grid.getEditorLock().isActive() || !/move|selectAndMove/.test(_grid.getColumns()[cell.cell].behavior)) {
return false;
}
_dragging = true;
e.stopImmediatePropagation();
var selectedRows = _grid.getSelectedRows();
if (selectedRows.length == 0 || $.inArray(cell.row, selectedRows) == -1) {
selectedRows = [cell.row];
_grid.setSelectedRows(selectedRows);
}
var rowHeight = _grid.getOptions().rowHeight;
dd.selectedRows = selectedRows;
dd.selectionProxy = $("<div class='slick-reorder-proxy'/>")
.css("position", "absolute")
.css("zIndex", "99999")
.css("width", $(_canvas).innerWidth())
.css("height", rowHeight * selectedRows.length)
.appendTo(_canvas);
dd.guide = $("<div class='slick-reorder-guide'/>")
.css("position", "absolute")
.css("zIndex", "99998")
.css("width", $(_canvas).innerWidth())
.css("top", -1000)
.appendTo(_canvas);
dd.insertBefore = -1;
}
function handleDrag(e, dd) {
if (!_dragging) {
return;
}
e.stopImmediatePropagation();
var top = e.pageY - $(_canvas).offset().top;
dd.selectionProxy.css("top", top - 5);
var insertBefore = Math.max(0, Math.min(Math.round(top / _grid.getOptions().rowHeight), _grid.getDataLength()));
if (insertBefore !== dd.insertBefore) {
var eventData = {
"rows": dd.selectedRows,
"insertBefore": insertBefore
};
if (_self.onBeforeMoveRows.notify(eventData) === false) {
dd.guide.css("top", -1000);
dd.canMove = false;
} else {
dd.guide.css("top", insertBefore * _grid.getOptions().rowHeight);
dd.canMove = true;
}
dd.insertBefore = insertBefore;
}
}
function handleDragEnd(e, dd) {
if (!_dragging) {
return;
}
_dragging = false;
e.stopImmediatePropagation();
dd.guide.remove();
dd.selectionProxy.remove();
if (dd.canMove) {
var eventData = {
"rows": dd.selectedRows,
"insertBefore": dd.insertBefore
};
// TODO: _grid.remapCellCssClasses ?
_self.onMoveRows.notify(eventData);
}
}
$.extend(this, {
"onBeforeMoveRows": new Slick.Event(),
"onMoveRows": new Slick.Event(),
"init": init,
"destroy": destroy
});
}
})(jQuery);