// removeMessage.js
 
// Object is available through a Service API. Declare service object,
// that is used to access the messaging services.
var serviceObject = null;
/**
* Java Script function.
* Closing window.
*/
function rightSoftkeyFunction() {
    window.close();
}
/**
* Java Script function, used object available through a Service API.
* Initializing main controls.
*/
function setup() {
    try {
        document.getElementById("messageList").style.display = "none";
        //Getting service object.
        serviceObject = device.getServiceObject("Service.Messaging",
            "IMessaging");
    } catch (exception) {
        alert("Service initialization error: " + exception);
        return;
    }
 
    try {
        //Setting label and handler for right softkey.
        menu.setRightSoftkeyLabel("Exit", rightSoftkeyFunction);
    } catch (e) {
        alert("Menu initialization error: " + e);
    }
 
    // Get list of all messages amd show it in SELECT object.
    getMessageList();
}
/**
* Java Script function.
* Viewes messages in separate list.
* @param iterator List of messages, same as result.ReturnValue
*/
function showMessages(iterator) {
    var msgList = document.getElementById("messageList");
    //Iterator is the list of the messages
    //reset to set pointer to the first element.
    iterator.reset();
    var item;
 
    // Clear current message list
    while (msgList.length > 0) {
    msgList.remove(0);
    }
 
 
    msgList.style.display = "block";
    //Fetching values from iterator and addition it to the options. 
    //Value of option contains description of corresponding message.
    while ((item = iterator.getNext()) != undefined) {
        var node = document.createElement ("option");
        node.value = item.MessageId;
        node.appendChild (document.createTextNode(item.MessageType + 
            item.Sender + "|" +item.Subject));
 
        msgList.appendChild(node);
    }
 
    if (msgList.length > 0) {
    msgList.options[0].selected = true;
    }
 
    msgList.focus();
}
/**
* Java Script function, using API from WRT 1.1 -- Messaging Service API.
* Gets list of messages.
*/
function getMessageList() {
    //Setup input params using dot syntax.
    var criteria = new Object();
    criteria.Type = "Inbox";
    criteria.Filter = new Object();
    criteria.Filter.MessageTypeList = new Array();
    if (document.getElementById("sms").checked == true) {
        criteria.Filter.MessageTypeList[0] = "SMS";
    } else {
        criteria.Filter.MessageTypeList[0] = "MMS";
    }
 
    try {
        // Get list of messages
        var result = serviceObject.IMessaging.GetList(criteria);
        if(result.ErrorCode != 0) {
            alert("Error in getting messages");
            return;
        }
        showMessages(result.ReturnValue);
    } catch(exception) {
        alert("getList: " + exception);
    }
}
 
/**
 * JavaScript function, uses API from WRT 1.1 - Messaging Service API.
 * Removes the message which is selected in selection listbox.
 */
function removeMessage() {
    // Get reference to SELECT object which containing list of messages
    var msgList = document.getElementById("messageList");
    // Criteria indicating the message which is required to be deleted
    var criteria = new Object();
    // Find messages which are selected in selection listbox
    for (var msgIndex = 0; msgIndex < msgList.length; msgIndex++) {
        if (msgList.options[msgIndex].selected) {
            // Get message id of selected message
            var messageId = msgList.options[msgIndex].value;
            // Radix of message id integer value
            var radix = 10;
            // Get numeric representation of the message id
            criteria.MessageId = parseInt(messageId, radix);
            // Delete the message
            var result = serviceObject.IMessaging.Delete(criteria);
            if (result.ErrorCode !== 0) {
                break;
            }
            // Remove message record from selection list
            msgList.remove(msgIndex);
            msgIndex = msgIndex - 1;
        }
    }
    getMessageList();
 
}