define("dijit/_editor/plugins/LinkDialog", [
	"require",
	"dojo/_base/declare", // declare
	"dojo/dom-attr", // domAttr.get
	"dojo/keys", // keys.ENTER
	"dojo/_base/lang", // lang.delegate lang.hitch lang.trim
	"dojo/sniff", // has("ie")
	"dojo/_base/query", // query
	"dojo/string", // string.substitute
	"../../_Widget",
	"../_Plugin",
	"../../form/DropDownButton",
	"../range"
], function(require, declare, domAttr, keys, lang, has, query, string,
	_Widget, _Plugin, DropDownButton, rangeapi){


// module:
//		dijit/_editor/plugins/LinkDialog
// summary:
//		Editor plugins: LinkDialog (for inserting links) and ImgLinkDialog (for inserting images)


var LinkDialog = declare("dijit._editor.plugins.LinkDialog", _Plugin, {
	// summary:
	//		This plugin provides the basis for an 'anchor' (link) dialog and an extension of it
	//		provides the image link dialog.
	// description:
	//		The command provided by this plugin is:
	//
	//		- createLink

	// Override _Plugin.buttonClass.   This plugin is controlled by a DropDownButton
	// (which triggers a TooltipDialog).
	buttonClass: DropDownButton,

	// Override _Plugin.useDefaultCommand... processing is handled by this plugin, not by dijit/Editor.
	useDefaultCommand: false,

	// urlRegExp: [protected] String
	//		Used for validating input as correct URL.  While file:// urls are not terribly
	//		useful, they are technically valid.
	urlRegExp: "((https?|ftps?|file)\\://|\./|\.\./|/|)(/[a-zA-Z]{1,1}:/|)(((?:(?:[\\da-zA-Z](?:[-\\da-zA-Z]{0,61}[\\da-zA-Z])?)\\.)*(?:[a-zA-Z](?:[-\\da-zA-Z]{0,80}[\\da-zA-Z])?)\\.?)|(((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])|(0[xX]0*[\\da-fA-F]?[\\da-fA-F]\\.){3}0[xX]0*[\\da-fA-F]?[\\da-fA-F]|(0+[0-3][0-7][0-7]\\.){3}0+[0-3][0-7][0-7]|(0|[1-9]\\d{0,8}|[1-3]\\d{9}|4[01]\\d{8}|42[0-8]\\d{7}|429[0-3]\\d{6}|4294[0-8]\\d{5}|42949[0-5]\\d{4}|429496[0-6]\\d{3}|4294967[01]\\d{2}|42949672[0-8]\\d|429496729[0-5])|0[xX]0*[\\da-fA-F]{1,8}|([\\da-fA-F]{1,4}\\:){7}[\\da-fA-F]{1,4}|([\\da-fA-F]{1,4}\\:){6}((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])))(\\:\\d+)?(/(?:[^?#\\s/]+/)*(?:[^?#\\s/]{0,}(?:\\?[^?#\\s/]*)?(?:#.*)?)?)?",

	// emailRegExp: [protected] String
	//		Used for validating input as correct email address.  Taken from dojox.validate
	emailRegExp:  "<?(mailto\\:)([!#-'*+\\-\\/-9=?A-Z^-~]+[.])*[!#-'*+\\-\\/-9=?A-Z^-~]+" /*username*/ + "@" +
        "((?:(?:[\\da-zA-Z](?:[-\\da-zA-Z]{0,61}[\\da-zA-Z])?)\\.)+(?:[a-zA-Z](?:[-\\da-zA-Z]{0,6}[\\da-zA-Z])?)\\.?)|localhost|^[^-][a-zA-Z0-9_-]*>?",	// host.

	// htmlTemplate: [protected] String
	//		String used for templating the HTML to insert at the desired point.
	htmlTemplate: "<a href=\"${urlInput}\" _djrealurl=\"${urlInput}\"" +
		" target=\"${targetSelect}\"" +
		">${textInput}</a>",

	// tag: [protected] String
	//		Tag used for the link type.
	tag: "a",

	// _hostRxp [private] RegExp
	//		Regular expression used to validate url fragments (ip address, hostname, etc)
	_hostRxp: /^((([^\[:]+):)?([^@]+)@)?(\[([^\]]+)\]|([^\[:]*))(:([0-9]+))?$/,

	// _userAtRxp [private] RegExp
	//		Regular expression used to validate e-mail address fragment.
	_userAtRxp: /^([!#-'*+\-\/-9=?A-Z^-~]+[.])*[!#-'*+\-\/-9=?A-Z^-~]+@/i,

	// linkDialogTemplate: [protected] String
	//		Template for contents of TooltipDialog to pick URL
	linkDialogTemplate: [
		"<table role='presentation'><tr><td>",
		"<label for='${id}_urlInput'>${url}</label>",
		"</td><td>",
		"<input data-dojo-type='dijit.form.ValidationTextBox' required='true' " +
		"id='${id}_urlInput' name='urlInput' data-dojo-props='intermediateChanges:true'/>",
		"</td></tr><tr><td>",
		"<label for='${id}_textInput'>${text}</label>",
		"</td><td>",
		"<input data-dojo-type='dijit.form.ValidationTextBox' required='true' id='${id}_textInput' " +
		"name='textInput' data-dojo-props='intermediateChanges:true'/>",
		"</td></tr><tr><td>",
		"<label for='${id}_targetSelect'>${target}</label>",
		"</td><td>",
		"<select id='${id}_targetSelect' name='targetSelect' data-dojo-type='dijit.form.Select'>",
		"<option selected='selected' value='_self'>${currentWindow}</option>",
		"<option value='_blank'>${newWindow}</option>",
		"<option value='_top'>${topWindow}</option>",
		"<option value='_parent'>${parentWindow}</option>",
		"</select>",
		"</td></tr><tr><td colspan='2'>",
		"<button data-dojo-type='dijit.form.Button' type='submit' id='${id}_setButton'>${set}</button>",
		"<button data-dojo-type='dijit.form.Button' type='button' id='${id}_cancelButton'>${buttonCancel}</button>",
		"</td></tr></table>"
	].join(""),

	_initButton: function(){
		this.inherited(arguments);

		// Setup to lazy create TooltipDialog first time the button is clicked
		this.button.loadDropDown = lang.hitch(this, "_loadDropDown");

		this._connectTagEvents();
	},
	_loadDropDown: function(callback){
		// Called the first time the button is pressed.  Initialize TooltipDialog.
		require([
			"dojo/i18n", // i18n.getLocalization
			"../../TooltipDialog",
			"../../registry", // registry.byId, registry.getUniqueId
			"../../form/Button",	// used by template
			"../../form/Select",	// used by template
			"../../form/ValidationTextBox",	// used by template
			"dojo/i18n!../../nls/common",
			"dojo/i18n!../nls/LinkDialog"
		], lang.hitch(this, function(i18n, TooltipDialog, registry){
			var _this = this;
			this.tag = this.command == 'insertImage' ? 'img' : 'a';
			var messages = lang.delegate(i18n.getLocalization("dijit", "common", this.lang),
				i18n.getLocalization("dijit._editor", "LinkDialog", this.lang));
			var dropDown = (this.dropDown = this.button.dropDown = new TooltipDialog({
				title: messages[this.command + "Title"],
				ownerDocument: this.editor.ownerDocument,
				dir: this.editor.dir,
				execute: lang.hitch(this, "setValue"),
				onOpen: function(){
					_this._onOpenDialog();
					TooltipDialog.prototype.onOpen.apply(this, arguments);
				},
				onCancel: function(){
					setTimeout(lang.hitch(_this, "_onCloseDialog"),0);
				}
			}));
			messages.urlRegExp = this.urlRegExp;
			messages.id = registry.getUniqueId(this.editor.id);
			this._uniqueId = messages.id;
			this._setContent(dropDown.title +
				"<div style='border-bottom: 1px black solid;padding-bottom:2pt;margin-bottom:4pt'></div>" +
				string.substitute(this.linkDialogTemplate, messages));
			dropDown.startup();
			this._urlInput = registry.byId(this._uniqueId + "_urlInput");
			this._textInput = registry.byId(this._uniqueId + "_textInput");
			this._setButton = registry.byId(this._uniqueId + "_setButton");
			this.connect(registry.byId(this._uniqueId + "_cancelButton"), "onClick", function(){
				this.dropDown.onCancel();
			});
			if(this._urlInput){
				this.connect(this._urlInput, "onChange", "_checkAndFixInput");
			}
			if(this._textInput){
				this.connect(this._textInput, "onChange", "_checkAndFixInput");
			}

			// Build up the dual check for http/https/file:, and mailto formats.
			this._urlRegExp = new RegExp("^" + this.urlRegExp + "$", "i");
			this._emailRegExp = new RegExp("^" + this.emailRegExp + "$", "i");
			this._urlInput.isValid = lang.hitch(this, function(){
				// Function over-ride of isValid to test if the input matches a url or a mailto style link.
				var value = this._urlInput.get("value");
				return this._urlRegExp.test(value) || this._emailRegExp.test(value);
			});

			// Listen for enter and execute if valid.
			this.connect(dropDown.domNode, "onkeypress", function(e){
				if(e && e.charOrCode == keys.ENTER &&
					!e.shiftKey && !e.metaKey && !e.ctrlKey && !e.altKey){
					if(!this._setButton.get("disabled")){
						dropDown.onExecute();
						dropDown.execute(dropDown.get('value'));
					}
				}
			});

			callback();
		}));
	},

	_checkAndFixInput: function(){
		// summary:
		//		A function to listen for onChange events and test the input contents
		//		for valid information, such as valid urls with http/https/ftp and if
		//		not present, try and guess if the input url is relative or not, and if
		//		not, append http:// to it.  Also validates other fields as determined by
		//		the internal _isValid function.
		var self = this;
		var url = this._urlInput.get("value");
		var fixupUrl = function(url){
			var appendHttp = false;
			var appendMailto = false;
			if(url && url.length > 1){
				url = lang.trim(url);
				if(url.indexOf("mailto:") !== 0){
					if(url.indexOf("/") > 0){
						if(url.indexOf("://") === -1){
							// Check that it doesn't start with /, ./, or ../, which would
							// imply 'target server relativeness'
							if(url.charAt(0) !== '/' && url.indexOf("./") && url.indexOf("../") !== 0){
								if(self._hostRxp.test(url)){
									appendHttp = true;
								}
							}
						}
					}else if(self._userAtRxp.test(url)){
						// If it looks like a foo@, append a mailto.
						appendMailto = true;
					}
				}
			}
			if(appendHttp){
				self._urlInput.set("value", "http://" + url);
			}
			if(appendMailto){
				self._urlInput.set("value", "mailto:" + url);
			}
			self._setButton.set("disabled", !self._isValid());
		};
		if(this._delayedCheck){
			clearTimeout(this._delayedCheck);
			this._delayedCheck = null;
		}
		this._delayedCheck = setTimeout(function(){
			fixupUrl(url);
		}, 250);
	},

	_connectTagEvents: function(){
		// summary:
		//		Over-ridable function that connects tag specific events.
		this.editor.onLoadDeferred.then(lang.hitch(this, function(){
			this.connect(this.editor.editNode, "ondblclick", this._onDblClick);
		}));
	},

	_isValid: function(){
		// summary:
		//		Internal function to allow validating of the inputs
		//		for a link to determine if set should be disabled or not
		// tags:
		//		protected
		return this._urlInput.isValid() && this._textInput.isValid();
	},

	_setContent: function(staticPanel){
		// summary:
		//		Helper for _initButton above.   Not sure why it's a separate method.
		this.dropDown.set({
			parserScope: "dojo",		// make parser search for dojoType/data-dojo-type even if page is multi-version
			content: staticPanel
		});
	},

	_checkValues: function(args){
		// summary:
		//		Function to check the values in args and 'fix' them up as needed.
		// args: Object
		//		Content being set.
		// tags:
		//		protected
		if(args && args.urlInput){
			args.urlInput = args.urlInput.replace(/"/g, "&quot;");
		}
		return args;
	},

	setValue: function(args){
		// summary:
		//		Callback from the dialog when user presses "set" button.
		// tags:
		//		private
		
		// TODO: prevent closing popup if the text is empty
		this._onCloseDialog();
		if(has("ie") < 9){ //see #4151
			var sel = rangeapi.getSelection(this.editor.window);
			var range = sel.getRangeAt(0);
			var a = range.endContainer;
			if(a.nodeType === 3){
				// Text node, may be the link contents, so check parent.
				// This plugin doesn't really support nested HTML elements
				// in the link, it assumes all link content is text.
				a = a.parentNode;
			}
			if(a && (a.nodeName && a.nodeName.toLowerCase() !== this.tag)){
				// Still nothing, one last thing to try on IE, as it might be 'img'
				// and thus considered a control.
				a = this.editor._sCall("getSelectedElement", [this.tag]);
			}
			if(a && (a.nodeName && a.nodeName.toLowerCase() === this.tag)){
				// Okay, we do have a match.  IE, for some reason, sometimes pastes before
				// instead of removing the targeted paste-over element, so we unlink the
				// old one first.  If we do not the <a> tag remains, but it has no content,
				// so isn't readily visible (but is wrong for the action).
				if(this.editor.queryCommandEnabled("unlink")){
					// Select all the link children, then unlink.  The following insert will
					// then replace the selected text.
					this.editor._sCall("selectElementChildren", [a]);
					this.editor.execCommand("unlink");
				}
			}
		}
		// make sure values are properly escaped, etc.
		args = this._checkValues(args);
		this.editor.execCommand('inserthtml',
			string.substitute(this.htmlTemplate, args));

		// IE sometimes leaves a blank link, so we need to fix it up.
		// Go ahead and do this for everyone just to avoid blank links
		// in the page.
		query("a", this.editor.document).forEach(function(a){
			if(!a.innerHTML && !domAttr.has(a, "name")){
				// Remove empty anchors that do not have "name" set.
				// Empty ones with a name set could be a hidden hash
				// anchor.
				a.parentNode.removeChild(a);
			}
		}, this);
	},

	_onCloseDialog: function(){
		// summary:
		//		Handler for close event on the dialog

		if(this.editor.focused){
			// put focus back in the edit area, unless the dialog closed because the user clicked somewhere else
			this.editor.focus();
		}
	},

	_getCurrentValues: function(a){
		// summary:
		//		Over-ride for getting the values to set in the dropdown.
		// a:
		//		The anchor/link to process for data for the dropdown.
		// tags:
		//		protected
		var url, text, target;
		if(a && a.tagName.toLowerCase() === this.tag){
			url = a.getAttribute('_djrealurl') || a.getAttribute('href');
			target = a.getAttribute('target') || "_self";
			text = a.textContent || a.innerText;
			this.editor._sCall("selectElement", [a, true]);
		}else{
			text = this.editor._sCall("getSelectedText");
		}
		return {urlInput: url || '', textInput: text || '', targetSelect: target || ''}; //Object;
	},

	_onOpenDialog: function(){
		// summary:
		//		Handler for when the dialog is opened.
		//		If the caret is currently in a URL then populate the URL's info into the dialog.
		var a,b,fc;
		if(has("ie")){
			// IE, even IE10, is difficult to select the element in, using the range unified
			// API seems to work reasonably well.
			var sel = rangeapi.getSelection(this.editor.window);
			if(sel.rangeCount){
				var range = sel.getRangeAt(0);
				a = range.endContainer;
				if(a.nodeType === 3){
					// Text node, may be the link contents, so check parent.
					// This plugin doesn't really support nested HTML elements
					// in the link, it assumes all link content is text.
					a = a.parentNode;
				}
				if(a && (a.nodeName && a.nodeName.toLowerCase() !== this.tag)){
					// Still nothing, one last thing to try on IE, as it might be 'img'
					// and thus considered a control.
					a = this.editor._sCall("getSelectedElement", [this.tag]);
				}
				if(!a || (a.nodeName && a.nodeName.toLowerCase() !== this.tag)){
					// Try another lookup, IE's selection is just terrible.
					b = this.editor._sCall("getAncestorElement", [this.tag]);
					if(b && (b.nodeName && b.nodeName.toLowerCase() == this.tag)){
						// Looks like we found an A tag, use it and make sure just it is
						// selected.
						a = b;
						this.editor._sCall("selectElement", [a]);
					}else if (range.startContainer === range.endContainer){
						// STILL nothing.  Trying one more thing.  Lets look at the first child.
						// It might be an anchor tag in a div by itself or the like.  If it is,
						// we'll use it otherwise we give up.  The selection is not easily
						// determinable to be on an existing anchor tag.
						fc = range.startContainer.firstChild;
						if(fc && (fc.nodeName && fc.nodeName.toLowerCase() == this.tag)){
							a = fc;
							this.editor._sCall("selectElement", [a]);
						}
					}
				}
			}
		}else{
			a = this.editor._sCall("getAncestorElement", [this.tag]);
		}
		this.dropDown.reset();
		this._setButton.set("disabled", true);
		this.dropDown.set("value", this._getCurrentValues(a));
	},

	_onDblClick: function(e){
		// summary:
		//		Function to define a behavior on double clicks on the element
		//		type this dialog edits to select it and pop up the editor
		//		dialog.
		// e: Object
		//		The double-click event.
		// tags:
		//		protected.
		if(e && e.target){
			var t = e.target;
			var tg = t.tagName ? t.tagName.toLowerCase() : "";
			if(tg === this.tag && domAttr.get(t,"href")){
				var editor = this.editor;

				this.editor._sCall("selectElement", [t]);
				editor.onDisplayChanged();

				// Call onNormalizedDisplayChange() now, rather than on timer.
				// On IE, when focus goes to the first <input> in the TooltipDialog, the editor loses it's selection.
				// Later if onNormalizedDisplayChange() gets called via the timer it will disable the LinkDialog button
				// (actually, all the toolbar buttons), at which point clicking the <input> will close the dialog,
				// since (for unknown reasons) focus.js ignores disabled controls.
				if(editor._updateTimer){
					editor._updateTimer.remove();
					delete editor._updateTimer;
				}
				editor.onNormalizedDisplayChanged();

				var button = this.button;
				setTimeout(function(){
					// Focus shift outside the event handler.
					// IE doesn't like focus changes in event handles.
					button.set("disabled", false);
					button.loadAndOpenDropDown().then(function(){
						if(button.dropDown.focus){
							button.dropDown.focus();
						}
					});
				}, 10);
			}
		}
	}
});

var ImgLinkDialog = declare("dijit._editor.plugins.ImgLinkDialog", [LinkDialog], {
	// summary:
	//		This plugin extends LinkDialog and adds in a plugin for handling image links.
	//		provides the image link dialog.
	// description:
	//		The command provided by this plugin is:
	//
	//		- insertImage

	// linkDialogTemplate: [protected] String
	//		Over-ride for template since img dialog doesn't need target that anchor tags may.
	linkDialogTemplate: [
		"<table role='presentation'><tr><td>",
		"<label for='${id}_urlInput'>${url}</label>",
		"</td><td>",
		"<input dojoType='dijit.form.ValidationTextBox' regExp='${urlRegExp}' " +
		"required='true' id='${id}_urlInput' name='urlInput' data-dojo-props='intermediateChanges:true'/>",
		"</td></tr><tr><td>",
		"<label for='${id}_textInput'>${text}</label>",
		"</td><td>",
		"<input data-dojo-type='dijit.form.ValidationTextBox' required='false' id='${id}_textInput' " +
		"name='textInput' data-dojo-props='intermediateChanges:true'/>",
		"</td></tr><tr><td>",
		"</td><td>",
		"</td></tr><tr><td colspan='2'>",
		"<button data-dojo-type='dijit.form.Button' type='submit' id='${id}_setButton'>${set}</button>",
		"<button data-dojo-type='dijit.form.Button' type='button' id='${id}_cancelButton'>${buttonCancel}</button>",
		"</td></tr></table>"
	].join(""),

	// htmlTemplate: [protected] String
	//		String used for templating the `<img>` HTML to insert at the desired point.
	htmlTemplate: "<img src=\"${urlInput}\" _djrealurl=\"${urlInput}\" alt=\"${textInput}\" />",

	// tag: [protected] String
	//		Tag used for the link type (img).
	tag: "img",

	_getCurrentValues: function(img){
		// summary:
		//		Over-ride for getting the values to set in the dropdown.
		// a:
		//		The anchor/link to process for data for the dropdown.
		// tags:
		//		protected
		var url, text;
		if(img && img.tagName.toLowerCase() === this.tag){
			url = img.getAttribute('_djrealurl') || img.getAttribute('src');
			text = img.getAttribute('alt');
			this.editor._sCall("selectElement", [img, true]);
		}else{
			text = this.editor._sCall("getSelectedText", []);
		}
		return {urlInput: url || '', textInput: text || ''}; //Object
	},

	_isValid: function(){
		// summary:
		//		Over-ride for images.  You can have alt text of blank, it is valid.
		// tags:
		//		protected
		return this._urlInput.isValid();
	},

	_connectTagEvents: function(){
		// summary:
		//		Over-ridable function that connects tag specific events.
		this.inherited(arguments);
		this.editor.onLoadDeferred.then(lang.hitch(this, function(){
			// Use onmousedown instead of onclick.  Seems that IE eats the first onclick
			// to wrap it in a selector box, then the second one acts as onclick.  See #10420
			this.connect(this.editor.editNode, "onmousedown", this._selectTag);
		}));
	},

	_selectTag: function(e){
		// summary:
		//		A simple event handler that lets me select an image if it is clicked on.
		//		makes it easier to select images in a standard way across browsers.  Otherwise
		//		selecting an image for edit becomes difficult.
		// e: Event
		//		The mousedown event.
		// tags:
		//		private
		if(e && e.target){
			var t = e.target;
			var tg = t.tagName? t.tagName.toLowerCase() : "";
			if(tg === this.tag){
				this.editor._sCall("selectElement", [t]);
			}
		}
	},

	_checkValues: function(args){
		// summary:
		//		Function to check the values in args and 'fix' them up as needed
		//		(special characters in the url or alt text)
		// args: Object
		//		Content being set.
		// tags:
		//		protected
		if(args && args.urlInput){
			args.urlInput = args.urlInput.replace(/"/g, "&quot;");
		}
		if(args && args.textInput){
			args.textInput = args.textInput.replace(/"/g, "&quot;");
		}
		return args;
	},

	_onDblClick: function(e){
		// summary:
		//		Function to define a behavior on double clicks on the element
		//		type this dialog edits to select it and pop up the editor
		//		dialog.
		// e: Object
		//		The double-click event.
		// tags:
		//		protected.
		if(e && e.target){
			var t = e.target;
			var tg = t.tagName ? t.tagName.toLowerCase() : "";
			if(tg === this.tag && domAttr.get(t,"src")){
				var editor = this.editor;

				this.editor._sCall("selectElement", [t]);
				editor.onDisplayChanged();

				// Call onNormalizedDisplayChange() now, rather than on timer.
				// On IE, when focus goes to the first <input> in the TooltipDialog, the editor loses it's selection.
				// Later if onNormalizedDisplayChange() gets called via the timer it will disable the LinkDialog button
				// (actually, all the toolbar buttons), at which point clicking the <input> will close the dialog,
				// since (for unknown reasons) focus.js ignores disabled controls.
				if(editor._updateTimer){
					editor._updateTimer.remove();
					delete editor._updateTimer;
				}
				editor.onNormalizedDisplayChanged();

				var button = this.button;
				setTimeout(function(){
					// Focus shift outside the event handler.
					// IE doesn't like focus changes in event handles.
					button.set("disabled", false);
					button.loadAndOpenDropDown().then(function(){
						if(button.dropDown.focus){
							button.dropDown.focus();
						}
					});
				}, 10);
			}
		}
	}
});

// Register these plugins
_Plugin.registry["createLink"] = function(){
	return new LinkDialog({command: "createLink"});
};
_Plugin.registry["insertImage"] = function(){
	return new ImgLinkDialog({command: "insertImage"});
};


// Export both LinkDialog and ImgLinkDialog
// TODO for 2.0: either return both classes in a hash, or split this file into two separate files.
// Then the documentation for the module can be applied to the hash, and will show up in the API doc.
LinkDialog.ImgLinkDialog = ImgLinkDialog;
return LinkDialog;
});
