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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
Components.utils.import("resource://gre/modules/Services.jsm");
var gAddButton;
var gRemoveButton;
var gHeaderInputElement;
var gArrayHdrs;
var gHdrsList;
var gContainer;
var gFilterBundle=null;
var gCustomBundle=null;
function onLoad()
{
let hdrs = Services.prefs.getCharPref("mailnews.customHeaders");
gHeaderInputElement = document.getElementById("headerInput");
gHeaderInputElement.focus();
gHdrsList = document.getElementById("headerList");
gArrayHdrs = new Array();
gAddButton = document.getElementById("addButton");
gRemoveButton = document.getElementById("removeButton");
initializeDialog(hdrs);
updateAddButton(true);
updateRemoveButton();
}
function initializeDialog(hdrs)
{
if (hdrs)
{
hdrs = hdrs.replace(/\s+/g,''); //remove white spaces before splitting
gArrayHdrs = hdrs.split(":");
for (var i = 0; i < gArrayHdrs.length; i++)
if (!gArrayHdrs[i])
gArrayHdrs.splice(i,1); //remove any null elements
initializeRows();
}
}
function initializeRows()
{
for (var i = 0; i < gArrayHdrs.length; i++)
addRow(TrimString(gArrayHdrs[i]));
}
function onTextInput()
{
// enable the add button if the user has started to type text
updateAddButton( (gHeaderInputElement.value == "") );
}
function onOk()
{
if (gArrayHdrs.length)
{
var hdrs;
if (gArrayHdrs.length == 1)
hdrs = gArrayHdrs;
else
hdrs = gArrayHdrs.join(": ");
Services.prefs.setCharPref("mailnews.customHeaders", hdrs);
// flush prefs to disk, in case we crash, to avoid dataloss and problems with filters that use the custom headers
Services.prefs.savePrefFile(null);
}
else
{
Services.prefs.clearUserPref("mailnews.customHeaders"); //clear the pref, no custom headers
}
window.arguments[0].selectedVal = gHdrsList.selectedItem ? gHdrsList.selectedItem.label : null;
return true;
}
function customHeaderOverflow()
{
var nsMsgSearchAttrib = Components.interfaces.nsMsgSearchAttrib;
if (gArrayHdrs.length >= (nsMsgSearchAttrib.kNumMsgSearchAttributes - nsMsgSearchAttrib.OtherHeader - 1))
{
if (!gFilterBundle)
gFilterBundle = document.getElementById("bundle_filter");
var alertText = gFilterBundle.getString("customHeaderOverflow");
Services.prompt.alert(window, null, alertText);
return true;
}
return false;
}
function onAddHeader()
{
var newHdr = TrimString(gHeaderInputElement.value);
if (!isRFC2822Header(newHdr)) // if user entered an invalid rfc822 header field name, bail out.
{
if (!gCustomBundle)
gCustomBundle = document.getElementById("bundle_custom");
var alertText = gCustomBundle.getString("colonInHeaderName");
Services.prompt.alert(window, null, alertText);
return;
}
gHeaderInputElement.value = "";
if (!newHdr || customHeaderOverflow())
return;
if (!duplicateHdrExists(newHdr))
{
gArrayHdrs[gArrayHdrs.length] = newHdr;
var newItem = addRow(newHdr);
gHdrsList.selectItem (newItem); // make sure the new entry is selected in the tree
// now disable the add button
updateAddButton(true);
gHeaderInputElement.focus(); // refocus the input field for the next custom header
}
}
function isRFC2822Header(hdr)
{
var charCode;
for (var i = 0; i < hdr.length; i++)
{
charCode = hdr.charCodeAt(i);
//58 is for colon and 33 and 126 are us-ascii bounds that should be used for header field name, as per rfc2822
if (charCode < 33 || charCode == 58 || charCode > 126)
return false;
}
return true;
}
function duplicateHdrExists(hdr)
{
for (var i = 0;i < gArrayHdrs.length; i++)
{
if (gArrayHdrs[i] == hdr)
return true;
}
return false;
}
function onRemoveHeader()
{
var listitem = gHdrsList.selectedItems[0]
if (!listitem) return;
listitem.remove();
var selectedHdr = GetListItemAttributeStr(listitem);
var j=0;
for (var i = 0; i < gArrayHdrs.length; i++)
{
if (gArrayHdrs[i] == selectedHdr)
{
gArrayHdrs.splice(i,1);
break;
}
}
}
function GetListItemAttributeStr(listitem)
{
if (listitem)
return TrimString(listitem.getAttribute("label"));
return "";
}
function addRow(newHdr)
{
var listitem = document.createElement("listitem");
listitem.setAttribute("label", newHdr);
gHdrsList.appendChild(listitem);
return listitem;
}
function updateAddButton(aDisable)
{
// only update the button if the disabled state changed
if (aDisable == gAddButton.disabled)
return;
gAddButton.disabled = aDisable;
document.documentElement.defaultButton = aDisable ? "accept" : "extra1";
}
function updateRemoveButton()
{
var headerSelected = (gHdrsList.selectedItems.length > 0);
gRemoveButton.disabled = !headerSelected;
if (gRemoveButton.disabled)
gHeaderInputElement.focus();
}
//Remove whitespace from both ends of a string
function TrimString(string)
{
if (!string) return "";
return string.trim();
}
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