126 lines
3.0 KiB
JavaScript
126 lines
3.0 KiB
JavaScript
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function Calc()
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{
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this.validateUp = validateUp;
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this.validatePress = validatePress;
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this.clear = clear;
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this.clearAll = clearAll;
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this.evaluate = evaluate;
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this.append = append;
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function validatePress(displayTextId, calcTextId, integral, separatorKey, e)
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{
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var key;
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if(window.event)
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key = e.keyCode; //IE
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else
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key = e.which; //Firefox
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// console.log("validatePress: " + displayTextId + " / " + calcTextId + " / " + integral + " / " + separatorKey + " / " + key);
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if (key == 61) // =
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{
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evaluate(displayTextId, calcTextId, String.fromCharCode(separatorKey));
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}
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}
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function validateUp(displayTextId, calcTextId, integral, separatorKey, e, processDotKeypad)
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{
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var key;
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if(window.event)
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key = e.keyCode; //IE
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else
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key = e.which; //Firefox
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// console.log("validateUp: " + displayTextId + " / " + calcTextId + " / " + integral + " / " + separatorKey + " / " + key + " / " + processDotKeypad);
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if (key == 13) // Enter
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{
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evaluate(displayTextId, calcTextId, String.fromCharCode(separatorKey));
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}
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else if (processDotKeypad && separatorKey != 46 && (key == 110 || key == 190) && !window.opera) // numeric dot on keypad (not working for opera)
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{
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append(calcTextId, String.fromCharCode(separatorKey));
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e.stop;
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}
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}
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function clearAll(calcTextId)
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{
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try
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{
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var id = "$".concat(calcTextId);
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var calcText = jq(id)[0];
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calcText.value = "";
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}
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catch (err)
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{
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}
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}
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function clear(calcTextId)
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{
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try
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{
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var id = "$".concat(calcTextId);
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var calcText = jq(id)[0];
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var val = calcText.value;
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if (val != "")
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{
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val = val.substring(0, val.length - 1);
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calcText.value = val;
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}
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}
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catch (err)
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{
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}
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}
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function evaluate(displayTextId, calcTextId, separator)
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{
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// console.log("evaluate: " + displayTextId + " / " + calcTextId + " / " + separator);
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var newValue = "error";
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try
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{
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var id = "$".concat(calcTextId);
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var calcText = jq(id)[0];
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var value = calcText.value;
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if (separator != '.')
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{
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var re = new RegExp("[" + separator + "]", "g");
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value = value.replace(re,'.');
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}
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var reclean = new RegExp("[^1234567890+-/*%() ]", "g"); // sanitize
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value = value.replace(reclean,'');
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var reperc = new RegExp("[%]", "g"); // percentage
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value = value.replace(reperc,'/100 ');
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newValue = value;
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var result = "" + eval(value);
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if (separator != '.')
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{
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result = result.replace(/\./, separator);
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}
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calcText.value = result;
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id = "$".concat(displayTextId);
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var displayText = jq(id)[0];
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if (!displayText.readOnly && calcText.value != 'undefined')
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{
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displayText.value = calcText.value;
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setTimeout("jq('$" + displayTextId + "')[0].focus()", 100);
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}
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}
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catch (err)
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{
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calcText.value = newValue;
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}
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}
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function append(calcTextId, val)
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{
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var id = "$".concat(calcTextId);
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var calcText = jq(id)[0];
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calcText.value += val;
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}
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}
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var calc = new Calc(); |