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//
// EventBoxTooltip.cs
//
// Author:
// Therzok <teromario@yahoo.com>
// Matt Ward <matt.ward@xamarin.com>
//
// Copyright (c) 2014 Xamarin Inc. (http://xamarin.com)
//
// 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 Gtk;
using System;
using MonoDevelop.Components.AtkCocoaHelper;
using MonoDevelop.Ide.Tasks;
using MonoDevelop.Ide;
using Gdk;
namespace MonoDevelop.Components
{
public class EventBoxTooltip : IDisposable
{
EventBox eventBox;
TooltipPopoverWindow tooltipWindow;
ImageView image;
Pixbuf normalPixbuf;
Pixbuf activePixbuf;
string tip;
bool mouseOver;
public Atk.Object Accessible {
get {
return eventBox.Accessible;
}
}
/// <summary>
/// The EventBox should have Visible set to false otherwise the tooltip pop window
/// will have the wrong location.
/// </summary>
public EventBoxTooltip (EventBox eventBox)
{
this.eventBox = eventBox;
eventBox.CanFocus = true;
eventBox.EnterNotifyEvent += HandleEnterNotifyEvent;
eventBox.LeaveNotifyEvent += HandleLeaveNotifyEvent;
eventBox.FocusInEvent += HandleFocusInEvent;
eventBox.FocusOutEvent += HandleFocusOutEvent;
image = eventBox.Child as ImageView;
if (image != null) {
normalPixbuf = image.Image.ToPixbuf ();
activePixbuf = normalPixbuf.ColorShiftPixbuf ();
}
eventBox.FocusGrabbed += (sender, e) => {
if (image != null)
image.Image = activePixbuf.ToXwtImage ();
};
eventBox.Focused += (o, args) => {
if (image != null)
image.Image = normalPixbuf.ToXwtImage ();
};
Position = PopupPosition.TopLeft;
// Accessibility: Disguise this eventbox as a label
eventBox.Accessible.SetRole (AtkCocoa.Roles.AXStaticText);
eventBox.CanFocus = true;
}
[GLib.ConnectBefore]
void HandleLeaveNotifyEvent (object sender, EventArgs e)
{
mouseOver = false;
HideTooltip ();
}
[GLib.ConnectBefore]
void HandleEnterNotifyEvent (object sender, EventArgs e)
{
mouseOver = true;
ShowTooltip ();
}
[GLib.ConnectBefore]
void HandleFocusOutEvent (object sender, EventArgs e)
{
mouseOver = false;
HideTooltip ();
}
[GLib.ConnectBefore]
void HandleFocusInEvent (object sender, EventArgs e)
{
mouseOver = true;
ShowTooltip ();
}
void UpdateAccessibility ()
{
eventBox.Accessible.SetLabel (tip);
}
bool ShowTooltip ()
{
if (!string.IsNullOrEmpty (tip)) {
HideTooltip ();
tooltipWindow = TooltipPopoverWindow.Create ();
tooltipWindow.ShowArrow = true;
tooltipWindow.Text = tip;
tooltipWindow.Severity = Severity;
var rect = new Gdk.Rectangle (0, 0, eventBox.Allocation.Width, eventBox.Allocation.Height + 5);
tooltipWindow.ShowPopup (eventBox, rect, Position);
}
return false;
}
void HideTooltip ()
{
if (tooltipWindow != null) {
tooltipWindow.Destroy ();
tooltipWindow = null;
}
}
public void Dispose ()
{
HideTooltip ();
eventBox.EnterNotifyEvent -= HandleEnterNotifyEvent;
eventBox.LeaveNotifyEvent -= HandleLeaveNotifyEvent;
eventBox.FocusInEvent -= HandleFocusInEvent;
eventBox.FocusOutEvent -= HandleFocusOutEvent;
}
public string ToolTip {
get { return tip; }
set {
tip = value;
if (tooltipWindow != null) {
if (!string.IsNullOrEmpty (tip))
tooltipWindow.Text = value;
else
HideTooltip ();
} else if (!string.IsNullOrEmpty (tip) && mouseOver)
ShowTooltip ();
UpdateAccessibility ();
}
}
public TaskSeverity? Severity { get; set; }
public PopupPosition Position { get; set; }
}
}
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