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360 lines
18 KiB
360 lines
18 KiB
/**
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/**
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* Implementing Drag and Drop functionality in AngularJS is easier than ever.
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* Demo: http://codef0rmer.github.com/angular-dragdrop/
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*
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* @version 1.0.11
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*
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* (c) 2013 Amit Gharat a.k.a codef0rmer <amit.2006.it@gmail.com> - amitgharat.wordpress.com
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*/
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(function (window, angular, $, undefined) {
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'use strict';
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var jqyoui = angular.module('ngDragDrop', []).service('ngDragDropService', ['$timeout', '$parse', function($timeout, $parse) {
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this.draggableScope = null;
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this.droppableScope = null;
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this.callEventCallback = function (scope, callbackName, event, ui) {
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if (!callbackName) return;
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var objExtract = extract(callbackName),
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callback = objExtract.callback,
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constructor = objExtract.constructor,
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args = [event, ui].concat(objExtract.args);
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// call either $scoped method i.e. $scope.dropCallback or constructor's method i.e. this.dropCallback.
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// Removing scope.$apply call that was performance intensive (especially onDrag) and does not require it
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// always. So call it within the callback if needed.
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return (scope[callback] || scope[constructor][callback]).apply(scope, args);
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function extract(callbackName) {
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var atStartBracket = callbackName.indexOf('(') !== -1 ? callbackName.indexOf('(') : callbackName.length,
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atEndBracket = callbackName.lastIndexOf(')') !== -1 ? callbackName.lastIndexOf(')') : callbackName.length,
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args = callbackName.substring(atStartBracket + 1, atEndBracket), // matching function arguments inside brackets
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constructor = callbackName.match(/^[^.]+.\s*/)[0].slice(0, -1); // matching a string upto a dot to check ctrl as syntax
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constructor = scope[constructor] && typeof scope[constructor].constructor === 'function' ? constructor : null;
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return {
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callback: callbackName.substring(constructor && constructor.length + 1 || 0, atStartBracket),
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args: $.map(args && args.split(',') || [], function(item) { return [$parse(item)(scope)]; }),
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constructor: constructor
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}
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}
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};
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this.invokeDrop = function ($draggable, $droppable, event, ui) {
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var dragModel = '',
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dropModel = '',
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dragSettings = {},
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dropSettings = {},
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jqyoui_pos = null,
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dragItem = {},
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dropItem = {},
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dragModelValue,
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dropModelValue,
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$droppableDraggable = null,
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droppableScope = this.droppableScope,
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draggableScope = this.draggableScope;
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dragModel = $draggable.ngattr('ng-model');
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dropModel = $droppable.ngattr('ng-model');
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dragModelValue = draggableScope.$eval(dragModel);
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dropModelValue = droppableScope.$eval(dropModel);
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$droppableDraggable = $droppable.find('[jqyoui-draggable]:last,[data-jqyoui-draggable]:last');
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dropSettings = droppableScope.$eval($droppable.attr('jqyoui-droppable') || $droppable.attr('data-jqyoui-droppable')) || [];
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dragSettings = draggableScope.$eval($draggable.attr('jqyoui-draggable') || $draggable.attr('data-jqyoui-draggable')) || [];
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// Helps pick up the right item
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dragSettings.index = this.fixIndex(draggableScope, dragSettings, dragModelValue);
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dropSettings.index = this.fixIndex(droppableScope, dropSettings, dropModelValue);
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jqyoui_pos = angular.isArray(dragModelValue) ? dragSettings.index : null;
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dragItem = angular.isArray(dragModelValue) ? dragModelValue[jqyoui_pos] : dragModelValue;
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if (dragSettings.deepCopy) {
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dragItem = angular.copy(dragItem);
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}
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if (angular.isArray(dropModelValue) && dropSettings && dropSettings.index !== undefined) {
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dropItem = dropModelValue[dropSettings.index];
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} else if (!angular.isArray(dropModelValue)) {
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dropItem = dropModelValue;
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} else {
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dropItem = {};
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}
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if (dropSettings.deepCopy) {
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dropItem = angular.copy(dropItem);
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}
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if (dragSettings.animate === true) {
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this.move($draggable, $droppableDraggable.length > 0 ? $droppableDraggable : $droppable, null, 'fast', dropSettings, null);
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this.move($droppableDraggable.length > 0 && !dropSettings.multiple ? $droppableDraggable : [], $draggable.parent('[jqyoui-droppable],[data-jqyoui-droppable]'), jqyoui.startXY, 'fast', dropSettings, angular.bind(this, function() {
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$timeout(angular.bind(this, function() {
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// Do not move this into move() to avoid flickering issue
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$draggable.css({'position': 'relative', 'left': '', 'top': ''});
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// Angular v1.2 uses ng-hide to hide an element not display property
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// so we've to manually remove display:none set in this.move()
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$droppableDraggable.css({'position': 'relative', 'left': '', 'top': '', 'display': $droppableDraggable.css('display') === 'none' ? '' : $droppableDraggable.css('display')});
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this.mutateDraggable(draggableScope, dropSettings, dragSettings, dragModel, dropModel, dropItem, $draggable);
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this.mutateDroppable(droppableScope, dropSettings, dragSettings, dropModel, dragItem, jqyoui_pos);
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this.callEventCallback(droppableScope, dropSettings.onDrop, event, ui);
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}));
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}));
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} else {
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$timeout(angular.bind(this, function() {
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this.mutateDraggable(draggableScope, dropSettings, dragSettings, dragModel, dropModel, dropItem, $draggable);
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this.mutateDroppable(droppableScope, dropSettings, dragSettings, dropModel, dragItem, jqyoui_pos);
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this.callEventCallback(droppableScope, dropSettings.onDrop, event, ui);
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}));
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}
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};
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this.move = function($fromEl, $toEl, toPos, duration, dropSettings, callback) {
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if ($fromEl.length === 0) {
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if (callback) {
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window.setTimeout(function() {
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callback();
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}, 300);
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}
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return false;
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}
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var zIndex = $fromEl.css('z-index'),
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fromPos = $fromEl[dropSettings.containment || 'offset'](),
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displayProperty = $toEl.css('display'), // sometimes `display` is other than `block`
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hadNgHideCls = $toEl.hasClass('ng-hide');
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if (toPos === null && $toEl.length > 0) {
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if (($toEl.attr('jqyoui-draggable') || $toEl.attr('data-jqyoui-draggable')) !== undefined && $toEl.ngattr('ng-model') !== undefined && $toEl.is(':visible') && dropSettings && dropSettings.multiple) {
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toPos = $toEl[dropSettings.containment || 'offset']();
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if (dropSettings.stack === false) {
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toPos.left+= $toEl.outerWidth(true);
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} else {
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toPos.top+= $toEl.outerHeight(true);
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}
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} else {
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// Angular v1.2 uses ng-hide to hide an element
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// so we've to remove it in order to grab its position
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if (hadNgHideCls) $toEl.removeClass('ng-hide');
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toPos = $toEl.css({'visibility': 'hidden', 'display': 'block'})[dropSettings.containment || 'offset']();
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$toEl.css({'visibility': '','display': displayProperty});
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}
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}
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$fromEl.css({'position': 'absolute', 'z-index': 9999})
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.css(fromPos)
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.animate(toPos, duration, function() {
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// Angular v1.2 uses ng-hide to hide an element
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// and as we remove it above, we've to put it back to
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// hide the element (while swapping) if it was hidden already
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// because we remove the display:none in this.invokeDrop()
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if (hadNgHideCls) $toEl.addClass('ng-hide');
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$fromEl.css('z-index', zIndex);
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if (callback) callback();
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});
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};
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this.mutateDroppable = function(scope, dropSettings, dragSettings, dropModel, dragItem, jqyoui_pos) {
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var dropModelValue = scope.$eval(dropModel);
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scope.dndDragItem = dragItem;
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if (angular.isArray(dropModelValue)) {
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if (dropSettings && dropSettings.index >= 0) {
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dropModelValue[dropSettings.index] = dragItem;
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} else {
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dropModelValue.push(dragItem);
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}
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if (dragSettings && dragSettings.placeholder === true) {
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dropModelValue[dropModelValue.length - 1]['jqyoui_pos'] = jqyoui_pos;
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}
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} else {
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$parse(dropModel + ' = dndDragItem')(scope);
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if (dragSettings && dragSettings.placeholder === true) {
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dropModelValue['jqyoui_pos'] = jqyoui_pos;
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}
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}
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};
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this.mutateDraggable = function(scope, dropSettings, dragSettings, dragModel, dropModel, dropItem, $draggable) {
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var isEmpty = angular.equals(dropItem, {}) || !dropItem,
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dragModelValue = scope.$eval(dragModel);
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scope.dndDropItem = dropItem;
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if (dragSettings && dragSettings.placeholder) {
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if (dragSettings.placeholder != 'keep'){
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if (angular.isArray(dragModelValue) && dragSettings.index !== undefined) {
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dragModelValue[dragSettings.index] = dropItem;
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} else {
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$parse(dragModel + ' = dndDropItem')(scope);
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}
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}
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} else {
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if (angular.isArray(dragModelValue)) {
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if (isEmpty) {
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if (dragSettings && ( dragSettings.placeholder !== true && dragSettings.placeholder !== 'keep' )) {
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dragModelValue.splice(dragSettings.index, 1);
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}
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} else {
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dragModelValue[dragSettings.index] = dropItem;
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}
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} else {
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// Fix: LIST(object) to LIST(array) - model does not get updated using just scope[dragModel] = {...}
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// P.S.: Could not figure out why it happened
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$parse(dragModel + ' = dndDropItem')(scope);
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if (scope.$parent) {
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$parse(dragModel + ' = dndDropItem')(scope.$parent);
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}
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}
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}
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$draggable.css({'z-index': '', 'left': '', 'top': ''});
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};
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this.fixIndex = function(scope, settings, modelValue) {
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if (settings.applyFilter && angular.isArray(modelValue) && modelValue.length > 0) {
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var dragModelValueFiltered = scope[settings.applyFilter](),
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lookup = dragModelValueFiltered[settings.index],
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actualIndex = undefined;
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modelValue.forEach(function(item, i) {
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if (angular.equals(item, lookup)) {
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actualIndex = i;
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}
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});
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return actualIndex;
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}
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return settings.index;
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};
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}]).directive('jqyouiDraggable', ['ngDragDropService', function(ngDragDropService) {
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return {
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require: '?jqyouiDroppable',
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restrict: 'A',
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link: function(scope, element, attrs) {
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var dragSettings, jqyouiOptions, zIndex;
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var updateDraggable = function(newValue, oldValue) {
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if (newValue) {
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dragSettings = scope.$eval(element.attr('jqyoui-draggable') || element.attr('data-jqyoui-draggable')) || {};
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jqyouiOptions = scope.$eval(attrs.jqyouiOptions) || {};
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element
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.draggable({disabled: false})
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.draggable(jqyouiOptions)
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.draggable({
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start: function(event, ui) {
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ngDragDropService.draggableScope = scope;
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zIndex = angular.element(jqyouiOptions.helper ? ui.helper : this).css('z-index');
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angular.element(jqyouiOptions.helper ? ui.helper : this).css('z-index', 9999);
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jqyoui.startXY = angular.element(this)[dragSettings.containment || 'offset']();
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ngDragDropService.callEventCallback(scope, dragSettings.onStart, event, ui);
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},
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stop: function(event, ui) {
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angular.element(jqyouiOptions.helper ? ui.helper : this).css('z-index', zIndex);
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ngDragDropService.callEventCallback(scope, dragSettings.onStop, event, ui);
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},
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drag: function(event, ui) {
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ngDragDropService.callEventCallback(scope, dragSettings.onDrag, event, ui);
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}
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});
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} else {
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element.draggable({disabled: true});
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}
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};
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scope.$watch(function() { return scope.$eval(attrs.drag); }, updateDraggable);
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updateDraggable();
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element.on('$destroy', function() {
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element.draggable({disabled: true}).draggable('destroy');
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});
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}
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};
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}]).directive('jqyouiDroppable', ['ngDragDropService', '$q', function(ngDragDropService, $q) {
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return {
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restrict: 'A',
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priority: 1,
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link: function(scope, element, attrs) {
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var dropSettings;
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var updateDroppable = function(newValue, oldValue) {
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if (newValue) {
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dropSettings = scope.$eval(angular.element(element).attr('jqyoui-droppable') || angular.element(element).attr('data-jqyoui-droppable')) || {};
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element
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.droppable({disabled: false})
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.droppable(scope.$eval(attrs.jqyouiOptions) || {})
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.droppable({
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over: function(event, ui) {
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ngDragDropService.callEventCallback(scope, dropSettings.onOver, event, ui);
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},
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out: function(event, ui) {
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ngDragDropService.callEventCallback(scope, dropSettings.onOut, event, ui);
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},
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drop: function(event, ui) {
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var beforeDropPromise = null;
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if (dropSettings.beforeDrop) {
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beforeDropPromise = ngDragDropService.callEventCallback(scope, dropSettings.beforeDrop, event, ui);
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} else {
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beforeDropPromise = (function() {
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var deferred = $q.defer();
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deferred.resolve();
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return deferred.promise;
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})();
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}
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beforeDropPromise.then(angular.bind(this, function() {
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if (angular.element(ui.draggable).ngattr('ng-model') && attrs.ngModel) {
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ngDragDropService.droppableScope = scope;
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ngDragDropService.invokeDrop(angular.element(ui.draggable), angular.element(this), event, ui);
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} else {
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ngDragDropService.callEventCallback(scope, dropSettings.onDrop, event, ui);
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}
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}), function() {
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ui.draggable.css({left: '', top: ''});
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});
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}
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});
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} else {
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element.droppable({disabled: true});
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}
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};
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scope.$watch(function() { return scope.$eval(attrs.drop); }, updateDroppable);
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updateDroppable();
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element.on('$destroy', function() {
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element.droppable({disabled: true}).droppable('destroy');
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});
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}
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};
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}]);
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angular.element.prototype.ngattr = function(name, value) {
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var element = angular.element(this).get(0);
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return element.getAttribute(name) || element.getAttribute('data-' + name);
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};
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})(window, window.angular, window.jQuery); |