1 files changed, 126 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.InfoCard.UI/InfoCard/SupportingScript.js b/src/DotNetOpenAuth.InfoCard.UI/InfoCard/SupportingScript.js
new file mode 100644
index 0000000..a883cd7
--- /dev/null
+++ b/src/DotNetOpenAuth.InfoCard.UI/InfoCard/SupportingScript.js
@@ -0,0 +1,126 @@
+/*jslint white: true, onevar: true, browser: true, undef: true, nomen: true, plusplus: true, bitwise: true, regexp: true, strict: true, newcap: true, immed: true */
+"use strict";
+document.infoCard = {
+	isSupported: function () {
+		/// <summary>
+		/// Determines if information cards are supported by the 
+		/// browser.
+		/// </summary>
+		/// <returns>
+		/// true-if the browser supports information cards.
+		///</returns>
+		var IEVer, embed, x, event;
+
+		IEVer = -1;
+		if (navigator.appName === 'Microsoft Internet Explorer') {
+			if (new RegExp("MSIE ([0-9]{1,}[\\.0-9]{0,})").exec(navigator.userAgent) !== null) {
+				IEVer = parseFloat(RegExp.$1);
+			}
+		}
+
+		// Look for IE 7+. 
+		if (IEVer >= 7) {
+			embed = document.createElement("object");
+			embed.type = "application/x-informationcard";
+			return embed.issuerPolicy !== undefined && embed.isInstalled;
+		}
+
+		// not IE (any version)
+		if (IEVer < 0 && navigator.mimeTypes && navigator.mimeTypes.length) {
+			// check to see if there is a mimeType handler. 
+			x = navigator.mimeTypes['application/x-informationcard'];
+			if (x && x.enabledPlugin) {
+				return true;
+			}
+
+			// check for the IdentitySelector event handler is there. 
+			if (document.addEventListener) {
+				event = document.createEvent("Events");
+				event.initEvent("IdentitySelectorAvailable", true, true);
+				top.dispatchEvent(event);
+
+				if (top.IdentitySelectorAvailable === true) {
+					return true;
+				}
+			}
+		}
+
+		return false;
+	},
+
+	activate: function (selectorId, hiddenFieldName) {
+		var selector, hiddenField;
+		selector = document.getElementById(selectorId);
+		hiddenField = document.getElementsByName(hiddenFieldName)[0];
+		try {
+			hiddenField.value = selector.value;
+		} catch (e) {
+			// Selector was canceled
+			return false;
+		}
+		if (hiddenField.value == 'undefined') { // really the string, not === undefined
+			// We're dealing with a bad FireFox selector plugin.
+			// Just add the control to the form by setting its name property and submit to activate.
+			selector.name = hiddenFieldName;
+			hiddenField.parentNode.removeChild(hiddenField);
+			return true;
+		}
+		return true;
+	},
+
+	hideStatic: function (divName) {
+		var div = document.getElementById(divName);
+		if (div) {
+			div.style.visibility = 'hidden';
+		}
+	},
+
+	showStatic: function (divName) {
+		var div = document.getElementById(divName);
+		if (div) {
+			div.style.visibility = 'visible';
+		}
+	},
+
+	hideDynamic: function (divName) {
+		var div = document.getElementById(divName);
+		if (div) {
+			div.style.display = 'none';
+		}
+	},
+
+	showDynamic: function (divName) {
+		var div = document.getElementById(divName);
+		if (div) {
+			div.style.display = '';
+		}
+	},
+
+	checkDynamic: function (controlDiv, unsupportedDiv) {
+		if (this.isSupported()) {
+			this.showDynamic(controlDiv);
+			if (unsupportedDiv) {
+				this.hideDynamic(unsupportedDiv);
+			}
+		} else {
+			this.hideDynamic(controlDiv);
+			if (unsupportedDiv) {
+				this.showDynamic(unsupportedDiv);
+			}
+		}
+	},
+
+	checkStatic: function (controlDiv, unsupportedDiv) {
+		if (this.isSupported()) {
+			this.showStatic(controlDiv);
+			if (unsupportedDiv) {
+				this.hideStatic(unsupportedDiv);
+			}
+		} else {
+			this.hideStatic(controlDiv);
+			if (unsupportedDiv) {
+				this.showDynamic(unsupportedDiv);
+			}
+		}
+	}
+};