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/* Copyright 2011-2014 Yorba Foundation
*
* This software is licensed under the GNU Lesser General Public License
* (version 2.1 or later). See the COPYING file in this distribution.
*/
// A simple grouping Entry that is only expandable
public class Sidebar.Grouping : Object, Sidebar.Entry, Sidebar.ExpandableEntry {
private string name;
private Icon? open_icon;
private Icon? closed_icon;
public Grouping(string name, Icon? open_icon, Icon? closed_icon = null) {
this.name = name;
this.open_icon = open_icon;
this.closed_icon = closed_icon ?? open_icon;
}
public string get_sidebar_name() {
return name;
}
public string? get_sidebar_tooltip() {
return name;
}
public Icon? get_sidebar_icon() {
return null;
}
public Icon? get_sidebar_open_icon() {
return open_icon;
}
public Icon? get_sidebar_closed_icon() {
return closed_icon;
}
public string to_string() {
return name;
}
public bool expand_on_select() {
return true;
}
}
// An end-node on the sidebar that represents a Page with its page context menu. Additional
// interfaces can be added if additional functionality is required (such as a drop target).
// This class also handles the bookwork of creating the Page on-demand and maintaining it in memory.
public abstract class Sidebar.SimplePageEntry : Object, Sidebar.Entry, Sidebar.SelectableEntry,
Sidebar.PageRepresentative, Sidebar.Contextable {
private Page? page = null;
public SimplePageEntry() {
}
public abstract string get_sidebar_name();
public virtual string? get_sidebar_tooltip() {
return get_sidebar_name();
}
public abstract Icon? get_sidebar_icon();
public virtual string to_string() {
return get_sidebar_name();
}
protected abstract Page create_page();
public bool has_page() {
return page != null;
}
protected Page get_page() {
if (page == null) {
page = create_page();
page_created(page);
}
return page;
}
internal void pruned(Sidebar.Tree tree) {
if (page == null)
return;
destroying_page(page);
page.destroy();
page = null;
}
public Gtk.Menu? get_sidebar_context_menu(Gdk.EventButton? event) {
return get_page().get_page_context_menu();
}
}
// A simple Sidebar.Branch where the root node is the branch in entirety.
public class Sidebar.RootOnlyBranch : Sidebar.Branch {
public RootOnlyBranch(Sidebar.Entry root) {
base (root, Sidebar.Branch.Options.NONE, null_comparator);
}
private static int null_comparator(Sidebar.Entry a, Sidebar.Entry b) {
return (a != b) ? -1 : 0;
}
}
public interface Sidebar.Contextable : Object {
// Return null if the context menu should not be invoked for this event
public abstract Gtk.Menu? get_sidebar_context_menu(Gdk.EventButton? event);
}
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