SharePoint ECB Customization-Add menu to 'sendTo'

在DIN Project中，我们有这样一个需求:在DIN Library ECB默认的SendTo 的子Menu中加入我们自己指定的Menu.

 重点注意的是:

1.加入的位置

2.只针对DIN Library 加入.

思路：找到_layouts/1033/Core.js下面的AddSendSubMenu方法,通过在Delegate Control中Override Core.js的方法来实现我们需求。

 Solution：

 1.创建Delegate Control,通过feature来部署delegate control. 2.在delegate control中 ovrride Core.js AddSendSubMenu.

关键代码如下(注意注释..):

$(function() {

 var spAddSendSubMenu = AddSendSubMenu;

AddSendSubMenu = function(m, ctx) {

 //通过ctx的listTemplate 属性来判断是否是DIN Library.

//如果是，Copy core.js中的AddSendSubMenu函数体，修改,添加我们的需求。

 //如果不是，则执行Core.js 默认的AddSendSubMenu

             if (ctx.listTemplate == '100502') {
                strDisplayText = L_Send_Text;
                var currentItemUrl = GetAttributeFromItemTable(itemTable, "Url", "ServerUrl");
                var currentItemEscapedFileUrl;
                var currentItenUnescapedUrl;
                var strExtension;
                if (currentItemFileUrl != null) {
                    currentItenUnescapedUrl = unescapeProperly(currentItemFileUrl);
                    currentItemEscapedFileUrl = escapeProperly(currentItenUnescapedUrl);
                    strExtension = SzExtension(currentItenUnescapedUrl);
                    if (strExtension != null && strExtension != "")
                        strExtension = strExtension.toLowerCase();
                }
                var sm = CASubM(m, strDisplayText, "", "", 400);
                sm.id = "ID_Send";
                var menuOption;
                var serverFileRedirect = itemTable.getAttribute("SRed");
                if (currentItemProgId != "SharePoint.WebPartPage.Document" &&
  (serverFileRedirect == null || serverFileRedirect == "" || HasRights(0x0, 0x20)) && strExtension != "aspx") {
                    if (typeof (ctx.SendToLocationName) != "undefined" &&
   ctx.SendToLocationName != null &&
   ctx.SendToLocationName != "" &&
   typeof (ctx.SendToLocationUrl) != "undefined" &&
   ctx.SendToLocationUrl != null &&
   ctx.SendToLocationUrl != "") {
                        strAction = "STSNavigate('" + ctx.HttpRoot + "/_layouts/copy.aspx?" + "SourceUrl=" + currentItemEscapedFileUrl + "&Source=" + GetSource() + "&FldUrl=" + escapeProperly(ctx.SendToLocationUrl) + "')";
                        menuOption = CAMOpt(sm,
        ctx.SendToLocationName,
        strAction,
        "");
                    }
                    if (typeof (itemTable.getAttribute("HCD")) != "undefined" && itemTable.getAttribute("HCD") == "1") {
                        strDisplayText = L_ExistingCopies_Text;
                        strAction = "STSNavigate('" + ctx.HttpRoot + "/_layouts/updatecopies.aspx?" + "SourceUrl=" + currentItemEscapedFileUrl + "&Source=" + GetSource() + "')";
                        strImagePath = ctx.imagesPath + "existingLocations.gif";
                        menuOption = CAMOpt(sm, strDisplayText, strAction, strImagePath);
                        menuOption.id = "ID_ExistingCopies";
                    }
                    strDisplayText = L_OtherLocation_Text;
                    strAction = "STSNavigate('" + ctx.HttpRoot + "/_layouts/copy.aspx?" + "SourceUrl=" + currentItemEscapedFileUrl + "&Source=" + GetSource() + "')";
                    strImagePath = ctx.imagesPath + "sendOtherLoc.gif";
                    menuOption = CAMOpt(sm, strDisplayText, strAction, strImagePath);
                    menuOption.id = "ID_OtherLocation";
                    if (ctx.OfficialFileName != null && ctx.OfficialFileName != "") {
                        strDisplayText = ctx.OfficialFileName;
                        strAction = "STSNavigate('" + ctx.HttpRoot + "/_layouts/SendToOfficialFile.aspx?" + "SourceUrl=" + currentItemEscapedFileUrl + "&Source=" + GetSource() + "')";
                        strImagePath = "";
                        CAMOpt(sm, strDisplayText, strAction, strImagePath);
                    }
                    CAMSep(sm);
                }
                if (HasRights(0x10, 0x0)) {
                    strDisplayText = L_SendToEmail_Text;
                    var currentItemUrl = GetAttributeFromItemTable(itemTable, "Url", "ServerUrl");
                    var httpRootWithSlash = ctx.HttpRoot.substr(0);
                    if (httpRootWithSlash[httpRootWithSlash.length - 1] != '/')
                        httpRootWithSlash += '/';
                    var slashLoc = -1;
                    var fileUrl = "";
                    slashLoc = httpRootWithSlash.substring(8).indexOf('/') + 8;
                    fileUrl = httpRootWithSlash.substr(0, slashLoc) + escapeProperlyCore(unescapeProperly(currentItemUrl), true);
                    var serverFileRedir = itemTable.getAttribute("SRed");
                    if ((serverFileRedir != null) &&
   (serverFileRedir != "") &&
   (serverFileRedir != "1")) {
                        if (serverFileRedir.substring(0, 1) != "1") {
                            fileUrl = serverFileRedir;
                        }
                        else {
                            fileUrl = serverFileRedir.substring(1);
                        }
                    }
                    strAction = "javascript:navigateMailToLinkNew('" + fileUrl + "')";
                    strImagePath = ctx.imagesPath + "gmailnew.gif";
                    menuOption = CAMOpt(sm, strDisplayText, strAction, strImagePath);
                    menuOption.id = "ID_SendToEmail";
                }

 //这里添加我们的DIN Logic,通过web Service 判断当前Document是否是Main document
                //customize
                $().SPServices({
                    operation: "GetListItems",
                    async: false,
                    listName: ctx.listName,
                    CAMLViewFields: "<ViewFields></ViewFields>",
                    CAMLQuery: "<Query><Where><Eq><FieldRef Name='ID' /><Value Type='Integer'>" + currentItemID + "</Value></Eq></Where></Query>",
                    completefunc: function(xData, Status) {
                        $(xData.responseXML).find("[nodeName=z:row]").each(function() {
                            //main document
                            if ($(this).attr("ows__DINMainDocument") == "1") {
                                CAMOpt(sm, "Download DIN Document", "window.location.href='http://icon-vpc-wss/DIN%20Document%20Template%20Gallery/Function%20Specification%20for%20QA%20Alert%20System.pdf';", "/_layouts/icondin/images/icon-dinn-dindoc.gif");
                            }
                            CAMOpt(sm, "Download Entire Bundle", "alert('" + currentItemID + "');", "/_layouts/icondin/images/icon-dinn-bundle.gif");
                        });
                    }
                });
                //end customize
                var serverFileRedirect = itemTable.getAttribute("SRed");
                if (currentItemFSObjType != 1 &&
  ctx.listBaseType == 1 &&
  (serverFileRedirect == null || serverFileRedirect == ""
     || HasRights(0x0, 0x20))) {
                
                    strAction = "STSNavigate('" + ctx.HttpRoot + "/_layouts/download.aspx?" + "SourceUrl=" + currentItemEscapedFileUrl + "&Source=" + GetSource() + "&FldUrl=" + escapeProperly(ctx.SendToLocationUrl) + "')"; ;
                    menuOption = CAMOpt(sm, L_DownloadACopy_Text, strAction, "");
                    menuOption.id = "ID_DownloadACopy";
                    if (ctx.listTemplate != 109 &&
   ctx.listTemplate != 119)
                        AddWorkspaceMenuItem(sm, ctx);
                }
            }
            else {
                spAddSendSubMenu(m, ctx);
            }
        }
    });