define([ "dojo/_base/lang", "dojo/query", "dojo/NodeList-html", "dojo/NodeList-traverse" ], function(lang, query) {
	var pasteTA = lang.getObject("siemens.clipboard.pasteTA", true);

	var dataTypeMap = {};
	dataTypeMap['application/json'] = "data-copy-json";
	dataTypeMap['application/vnd-websdk'] = "data-copy-websdk";

	var targetContainerId;
	var targetElement;
	var targetAction;
	var isPasteTANewRow;

	return lang.mixin(pasteTA, {

		isNavigatorIE : function() {
			return (navigator.userAgent.indexOf('MSIE') !== -1 || navigator.appVersion.indexOf('Trident/') > 0);
		},

		isPasteCommandSupported : function() {
			return document.queryCommandSupported('paste');
		},

		isPasteCommandEnabled : function() {
			return document.queryCommandEnabled('paste');
		},
		
		paste : function(container) {
			targetElement = container;
			targetContainerId = container.id;
			if(targetContainerId == undefined){
				targetElement = container[0];
				targetContainerId = container[0].id;
			}
			if (!pasteTA.pasteCommand()) {
				pasteTA.pasteText();
			}
		},

		pasteTA : function(container) {
			isPasteTANewRow = false;
			pasteTA.paste(container);
		},
		
		pasteTANewRow : function(container) {
			isPasteTANewRow = true;
			pasteTA.paste(container);
		},

		// check if event clipboard and pasteTA command are supported, if so execute pasteTA command
		pasteCommand : function() {
			var pasteSucceeded = false;
			if (!(pasteTA.isNavigatorIE()) && document.queryCommandEnabled) {
				var needDesignMode = !pasteTA.isPasteCommandEnabled();
				if (needDesignMode) {
					document.designMode = 'on';
				}
				pasteSucceeded = (pasteTA.isPasteCommandSupported() && document.execCommand('pasteTA'));
				if (needDesignMode) {
					document.designMode = 'off';
				}
			}
			return pasteSucceeded;
		},

		// apply clipboard data for IE/Firefox
		pasteText : function() {
			pasteTA
			.getClipboardText(function(clipboardData) {
				if (clipboardData) {
					var clipData = clipboardData.toString();
					var params = 'data-copy-websdk=' + clipData + '&data-copy-json=' + clipData;
					
					if (isPasteTANewRow) {
						display_submitForm('GRID_NEW_ROW_CLIPBOARD_HANDLER', 'GRID_NEW_ROW', targetElement,
								params);
					} else {
						params += '&TARGETID=' + targetContainerId;
						display_sendAction('GRID_PASTE_TA', 'PASTE_TA', params);
					}
				}
			});
		},

		// apply clipboard data for QT browser
		pasteData : function(e) {
			var clipboardData = '';
			for (mimeType in dataTypeMap) {
				var clipboard = e.clipboardData.getData(mimeType);
				if (clipboard) {
					clipboardData += '&' + dataTypeMap[mimeType] + '=' + clipboard.toString();
				}
			}

			if (clipboardData) {
				if (isPasteTANewRow) {
					display_submitForm('GRID_NEW_ROW_CLIPBOARD_HANDLER', 'GRID_NEW_ROW', targetContainerId,
							clipboardData);
				} else {
					params += 'TARGETID=' + targetContainerId;
					 display_sendAction('GRID_PASTE_TA', 'PASTE_TA', clipboardData);
				}
			}
		},

		// helper method, only for IE/Firefox
		getClipboardText : function(callback) {
			var clipData = "";
			if (window.clipboardData && clipboardData.getData) {
				// set selections from clipboard value
				clipData = clipboardData.getData("Text");
			} else if (top.siemensWebSDKAddon) {
				// create one-time event listener to invoke the callback
				var listener = null;
				listener = function(event) {
					top.removeEventListener('WebSDKPushClipboard', listener, false);
					callback(event.detail.data);
				};
				// register for push clipboard event coming from firefox extension
				top.addEventListener('WebSDKPushClipboard', listener, false);

				// generate an event to trigger firefox extension to push clipboard
				var event = new CustomEvent("WebSDKGrabClipboard", {
					"detail" : {
						"dataType" : "text"
					}
				});
				top.dispatchEvent(event);
				return;
			}

			if (callback) {
				callback(clipData);
			} else {
				return clipData;
			}
		},

		clearEventProperties : function() {
			targetAction = '';
			targetContainerId = '';
		}
	});
});