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

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

	var targetElement;
	var targetContainerId;
	var targetAction;

	return lang.mixin(paste, {

		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');
		},

		// try to paste using event.clipboardData; if not supported paste using
		// window.clipboardData
		paste : function(element, action, containerId) {
			targetElement = query(element);
			var activeElement = query(document.activeElement);
			var parentInlineFilter = activeElement.parents('tr.CVInlineFilter'), parentToolbar = activeElement
			.parents('div.gridToolbarCell');

			if (parentInlineFilter.length > 0 || parentToolbar.length > 0) {
				targetElement = activeElement;
			}

			if (action) {
				targetAction = action;
			} else {
				var elementType = targetElement.attr('data-context').toString();
				targetAction = (elementType === 'Grid') ? 'GRID_PASTE' : 'INPUT_PASTE';
			}

			if (containerId) {
				targetContainerId = containerId;
			} else {
				targetContainerId = targetElement.attr('id').toString();
			}

			if (!paste.pasteCommand()) {
				paste.pasteText();
			}
		},

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

		// apply clipboard data for IE/Firefox
		pasteText : function() {
			paste
			.getClipboardText(function(clipboardData) {
				if (clipboardData) {
					var clipData = clipboardData.toString();
					var params = 'data-copy-websdk=' + clipData + '&data-copy-text=' + clipData
					+ '&data-copy-text-html=' + clipData;					
					params = 'TARGET_ID=' + targetElement.attr('id').toString() + '&' + params;
					display_submitForm(targetAction, 'PASTE', targetContainerId, 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) {
				display_submitForm(targetAction, 'PASTE', targetContainerId, 'TARGET_ID='
						+ targetElement.attr('id').toString() + 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() {
			targetElement = '';
			targetAction = '';
			targetContainerId = '';
		}
	});
});