/*
* Copyright (c) 2006 Sebastian Drge <slomo@circular-chaos.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
using System;
using System.Reflection;
using System.Collections.Generic;
using GLib;
using Gdk;
using Gtk;
using NDesk.DBus;
using org.freedesktop;
using org.freedesktop.DBus;
namespace Notifications{
public enum Urgency : byte {
Low = 0,
Normal,
Critical
}
public class ActionArgs : EventArgs {
private string action;
public string Action {
get { return action; }
}
public ActionArgs (string action) {
this.action = action;
}
}
public delegate void ActionHandler (object o, ActionArgs args);
public class Notification {
private struct IconData {
public int Width;
public int Height;
public int Rowstride;
public bool HasAlpha;
public int BitsPerSample;
public int NChannels;
public byte[] Pixels;
}
private struct ActionTuple {
public string Label;
public ActionHandler Handler;
public ActionTuple (string label, ActionHandler handler) {
Label = label;
Handler = handler;
}
}
private INotifications nf;
private bool updates_pending = false;
private bool shown = false;
private string app_name;
private uint id = 0;
private int timeout = -1;
private string summary = String.Empty, body = String.Empty;
private string icon = String.Empty;
private IDictionary <string, ActionTuple> action_map = new Dictionary<string, ActionTuple> ();
private IDictionary <string, object> hints = new Dictionary<string, object> ();
public event EventHandler Closed;
static Notification () {
BusG.Init ();
}
public Notification () {
nf = Global.DBusObject;
nf.NotificationClosed += OnClosed;
nf.ActionInvoked += OnActionInvoked;
this.app_name = Assembly.GetCallingAssembly().GetName().Name;
}
public Notification (string summary, string body) : this () {
this.summary = summary;
this.body = body;
}
public Notification (string summary, string body, string icon) : this (summary, body) {
this.icon = icon;
}
public Notification (string summary, string body, Pixbuf icon) : this (summary, body) {
SetPixbufHint (icon);
}
public Notification (string summary, string body, Pixbuf icon, Gtk.Widget widget) : this (summary, body, icon) {
AttachToWidget (widget);
}
public Notification (string summary, string body, string icon, Gtk.Widget widget) : this (summary, body, icon) {
AttachToWidget (widget);
}
public string Summary {
set {
summary = value;
Update ();
}
get {
return summary;
}
}
public string Body {
set {
body = value;
Update ();
}
get {
return body;
}
}
public int Timeout {
set {
timeout = value;
Update ();
}
get {
return timeout;
}
}
public Urgency Urgency {
set {
hints["urgency"] = (byte) value;
Update ();
}
get {
return hints.ContainsKey ("urgency") ? (Urgency) hints["urgency"] : Urgency.Normal;
}
}
public string Category {
set {
hints["category"] = value;
Update ();
}
get {
return hints.ContainsKey ("category") ? (string) hints["category"] : String.Empty;
}
}
public Pixbuf Icon {
set {
SetPixbufHint (value);
icon = String.Empty;
Update ();
}
}
public string IconName {
set {
icon = value;
hints.Remove ("icon_data");
Update ();
}
}
private void SetPixbufHint (Pixbuf pixbuf) {
IconData icon_data = new IconData ();
icon_data.Width = pixbuf.Width;
icon_data.Height = pixbuf.Height;
icon_data.Rowstride = pixbuf.Rowstride;
icon_data.HasAlpha = pixbuf.HasAlpha;
icon_data.BitsPerSample = pixbuf.BitsPerSample;
icon_data.NChannels = pixbuf.NChannels;
int len = (icon_data.Height - 1) * icon_data.Rowstride + icon_data.Width *
((icon_data.NChannels * icon_data.BitsPerSample + 7) / 8);
icon_data.Pixels = new byte[len];
System.Runtime.InteropServices.Marshal.Copy (pixbuf.Pixels, icon_data.Pixels, 0, len);
hints["icon_data"] = icon_data;
}
public void AttachToWidget (Gtk.Widget widget) {
int x, y;
widget.GdkWindow.GetOrigin (out x, out y);
if (widget.GetType() != typeof (Gtk.Window) || ! widget.GetType().IsSubclassOf(typeof (Gtk.Window))) {
x += widget.Allocation.X;
y += widget.Allocation.Y;
}
x += widget.Allocation.Width / 2;
y += widget.Allocation.Height / 2;
SetGeometryHints (widget.Screen, x, y);
}
public void SetGeometryHints (Screen screen, int x, int y) {
hints["x"] = x;
hints["y"] = y;
hints["xdisplay"] = screen.MakeDisplayName ();
Update ();
}
private void Update () {
if (shown && !updates_pending) {
updates_pending = true;
GLib.Timeout.Add (100, delegate {
if (updates_pending) {
Show ();
updates_pending = false;
}
return false;
});
}
}
public void Show () {
string[] actions;
lock (action_map) {
actions = new string[action_map.Keys.Count * 2];
int i = 0;
foreach (KeyValuePair<string,ActionTuple> pair in action_map) {
actions[i++] = pair.Key;
actions[i++] = pair.Value.Label;
}
}
id = nf.Notify (app_name, id, icon, summary, body, actions, hints, timeout);
shown = true;
}
public void Close () {
nf.CloseNotification (id);
id = 0;
shown = false;
}
private void OnClosed (uint id) {
if (this.id == id) {
this.id = 0;
shown = false;
if (Closed != null) {
Closed (this, new EventArgs ());
}
}
}
public void AddAction (string action, string label, ActionHandler handler) {
lock (action_map) {
action_map[action] = new ActionTuple (label, handler);
}
Update ();
}
public void RemoveAction (string action) {
lock (action_map) {
action_map.Remove (action);
}
Update ();
}
public void ClearActions () {
lock (action_map) {
action_map.Clear ();
}
Update ();
}
private void OnActionInvoked (uint id, string action) {
lock (action_map) {
if (this.id == id && action_map.ContainsKey (action))
action_map[action].Handler (this, new ActionArgs (action));
}
}
public void AddHint (string name, object value) {
hints[name] = value;
Update ();
}
public void RemoveHint (string name) {
hints.Remove (name);
Update ();
}
}
}
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