Upgrade to ExtJS 3.2.0 - Released 03/30/2010

[extjs.git] / examples / themes / styleswitcher.js

diff --git a/examples/themes/styleswitcher.js b/examples/themes/styleswitcher.js
new file mode 100644 (file)
index 0000000..a948b28
--- /dev/null
+++ b/examples/themes/styleswitcher.js
@@ -0,0 +1,91 @@
+/*!
+ * Ext JS Library 3.2.0
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+function setActiveStyleSheet(title) {
+    var i,
+        a,
+        links = document.getElementsByTagName("link"),
+        len = links.length;
+    for (i = 0; i < len; i++) {
+        a = links[i];
+        if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
+            a.disabled = true;
+            if (a.getAttribute("title") == title) a.disabled = false;
+        }
+    }
+}
+
+function getActiveStyleSheet() {
+    var i,
+        a,
+        links = document.getElementsByTagName("link"),
+        len = links.length;
+    for (i = 0; i < len; i++) {
+        a = links[i];
+        if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) {
+            return a.getAttribute("title");
+        }
+    }
+    return null;
+}
+
+function getPreferredStyleSheet() {
+    var i,
+        a,
+        links = document.getElementsByTagName("link"),
+        len = links.length;
+    for (i = 0; i < len; i++) {
+        a = links[i];
+        if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title")) {
+            return a.getAttribute("title");
+        }
+    }
+    return null;
+}
+
+function createCookie(name, value, days) {
+    if (days) {
+        var date = new Date();
+        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
+        var expires = "; expires=" + date.toGMTString();
+    } else {
+        expires = "";
+    }
+    document.cookie = name + "=" + value + expires + "; path=/";
+}
+
+function readCookie(name) {
+    var nameEQ = name + "=",
+        ca = document.cookie.split(';'),
+        i,
+        c,
+        len = ca.length;
+    for ( i = 0; i < len; i++) {
+        c = ca[i];
+        while (c.charAt(0) == ' ') {
+            c = c.substring(1, c.length);
+        }
+        if (c.indexOf(nameEQ) == 0) {
+            return c.substring(nameEQ.length, c.length);
+        }
+    }
+    return null;
+}
+
+window.onload = function (e) {
+    var cookie = readCookie("style");
+    var title = cookie ? cookie : getPreferredStyleSheet();
+    setActiveStyleSheet(title);
+}
+
+window.onunload = function (e) {
+    var title = getActiveStyleSheet();
+    createCookie("style", title, 365);
+}
+
+var cookie = readCookie("style");
+var title = cookie ? cookie : getPreferredStyleSheet();
+setActiveStyleSheet(title);