* luci/themes:

[project/luci.git] / themes / base / htdocs / luci-static / resources / VarType.js

diff --git a/themes/base/htdocs/luci-static/resources/VarType.js b/themes/base/htdocs/luci-static/resources/VarType.js
new file mode 100644 (file)
index 0000000..d466810
--- /dev/null
+++ b/themes/base/htdocs/luci-static/resources/VarType.js
@@ -0,0 +1,91 @@
+/*
+Copyright (C) 2008  Alina Friedrichsen <x-alina@gmx.net>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+*/
+
+function VarType() {
+}
+
+VarType.isNull = function(obj) {
+       if(typeof obj == "undefined") return true;
+       if(typeof obj == "object" && (!obj)) return true;
+       return false;
+};
+
+VarType.toFloat = function(value) {
+       value = Number(value);
+       return value;
+};
+
+VarType.toDecimal = function(value) {
+       value = Number(value);
+       if(!isFinite(value)) value = 0.0;
+       return value;
+};
+
+VarType.toInt = function(value) {
+       value = Number(value);
+       if(!isFinite(value)) value = 0.0;
+       value = Math.floor(value);
+       return value;
+};
+
+VarType.toUInt = function(value) {
+       value = Number(value);
+       if(!isFinite(value)) value = 0.0;
+       else if(value < 0.0) value = 0.0;
+       value = Math.floor(value);
+       return value;
+};
+
+VarType.toStr = function(value) {
+       if(VarType.isNull(value)) value = "";
+       value = String(value);
+       return value;
+};
+
+VarType.toBool = function(value) {
+       value = Boolean(value);
+       return value;
+};
+
+VarType.needObject = function(obj) {
+       if(typeof obj != "object" || (!obj)) throw new TypeError();
+};
+
+VarType.needInstanceOf = function(obj, type) {
+       if(!(obj instanceof type)) throw new TypeError();
+};
+
+VarType.needFunction = function(obj) {
+       if(typeof obj != "function") throw new TypeError();
+};
+
+VarType.needNode = function(obj, type) {
+       VarType.needObject(obj);
+       if(VarType.isNull(obj.nodeType)) throw new TypeError();
+       if(!VarType.isNull(type)) {
+               type = VarType.toInt(type);
+               if(obj.nodeType != type) throw new TypeError();
+       }
+};