Adding button to ribbon in CommandUI.Ribbon

Question

I'm trying to add a button to the ribbon, in the same place the default "I Like It" and "Tags & Notes" buttons are located. I the elements.xml file for this feature (SocialRibbonControl) and tried copying it, but for some reason it won't work and I'm not sure why. Has anyone ever done this?

Here's the code:

<CustomAction
    Id="Ribbon.Documents.AppendSocialRibbonControl"
    Location="CommandUI.Ribbon"
    Title="$Resources:spscore,SocialRibbonControl_SocialRibbonControlAction_Text"
    Sequence="10">
    <CommandUIExtension>
      <CommandUIDefinitions>
        <CommandUIDefinition Location="Ribbon.Documents.Groups._children">
          <Group Id="Ribbon.Documents.TagsAndNotes"
                 Sequence="80"
                 Command="TagsAndNotesGroup"
                 Description=""
                 Title="$Resources:spscore,SocialRibbonControl_SocialRibbonControlAction_Text"
                 Template="Ribbon.Templates.Flexible2">
            <Controls Id="Ribbon.Documents.TagsAndNotes.Controls">
              <Button
                Id="Ribbon.Documents.TagsAndNotes.FavoriteSite"
                Sequence="1000"
                Alt="Fav"
                        Command="ILikeIt"
                        Image16by16="/_layouts/images/QuickTagILikeIt_16.png"
                        Image32by32="/_layouts/images/QuickTagILikeIt_32.png"
                        LabelText="Fav"
                        ToolTipTitle="fav"
                        ToolTipDescription="fav"
                TemplateAlias="o1"/>
            </Controls>
          </Group>
        </CommandUIDefinition>
      </CommandUIDefinitions>
    </CommandUIExtension>
  </CustomAction>

Update I forgot to mention that this is all within a sandboxed solution.

Update 2 Damn you, sandbox! The GlobalSiteLink3 is a farm scoped delegate control. And since you can't deploy farm based features in the sandbox, you can't overwrite it...

Answer 1

AFAIK the "i like it" controls are not part of the ribbon?

If you want to replace the controls, you can create a custom control that inherits from SocialNotificationBase and render your own content in the OnLoad control

public class ReitanSocialNotification : SocialNotificationBase
{
    public ReitanSocialNotification()
    {
        base.NotificationMessageFormat = "<span style='padding:3px;'>{0}</span>";
    }

    protected override void OnLoad(EventArgs e)
    {
        if (this.Visible)
        {
            StringBuilder builder = new StringBuilder();
            builder.Append("<div class='ms-mini-socialNotif-Container'>");
            builder.Append("<ul class='customSocial'>");

            // NOTE: we cant check if I LIKE IT feature is enabled since SocialItemType is internal! :(
            builder.AppendFormat("<li class=\"customQuickTag\"><a class='ms-mini-socialNotif' id='AddQuickTag_{0}' ", this.ClientID);
            builder.AppendFormat(" href='javascript:;' onclick='{0}_AddQuickTag();' ",this.ClientID);
            builder.Append(" title=\"Your title goes here.\">");
            builder.Append("I like it!</a></li>");

            builder.AppendFormat("<li class=\"customTagNotes\"><a class='ms-mini-socialNotif' id='TagsAndNotes_{0}'", this.ClientID);
            builder.Append(" href='javascript:;' onclick=\"SafeRunFunction(function() { TagDialogOpener.Open('http:\u002f\u002fintranet\u002fsites\u002ftest\u002f_catalogs\u002flt\u002fForms\u002fAllItems.aspx', document.title, '0'); }, 'SocialData.js', 'TagDialogOpener');\" ");
            builder.AppendFormat(" onmouseover='{0}_GetSocialNotification();' title='Your title goes here.' >", this.ClientID);
            builder.Append("Tags and notes</a></li>");
            builder.Append("</ul>");
            builder.Append("</div>");
            this.Controls.Add(new LiteralControl(builder.ToString()));
            base.OnLoad(e);
        }

    }
}

You can then (depending on what master you are using) insert the control in the DelegateControl GlobalSiteLink3 with a low sequence to override the existing control. More on delegate controls.

Answer 2

Final answer: in Office 365 it's not possible because you cannot use GlobalSiteLink3 as it is farm scoped and you cannot deploy any farm scoped parts in 365. Not without deploying a custom masterpage that is.