#region File and License Information
/*
<File>
<Copyright>Copyright © 2007, Daniel Vaughan. All rights reserved.</Copyright>
<License>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the <organization> nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
</License>
<Owner Name="Daniel Vaughan" Email="dbvaughan@gmail.com"/>
<CreationDate>2009-05-17 19:02:51Z</CreationDate>
</File>
*/
#endregion
using System;
using System.Linq;
using System.Windows.Input;
using DanielVaughan.Calcium.Client.Services;
namespace DanielVaughan.Calcium.Client.Gui.Windows
{
public partial class DesktopShell : ICommandService
{
#region External Command Binding support
/// <summary>
/// <see cref="ICommandService.AddCommandBindingForContentType{TContent}"/>
/// </summary>
public void AddCommandBindingForContentType<TContent>(ICommand command,
Func<TContent, bool> executeHandler, Func<TContent, bool> canExecuteHandler)
where TContent : class
{
/* When the workspace view changes,
* if the view is viewType then the specified command will be enabled depending
* on the result of the command.CanExecute.
* When the command is executed the current view's specified member will be called. */
CommandBindings.Add(new CommandBinding(command,
(sender, e) =>
{
var content = GetSelectedContent<TContent>();
if (content == null)
{
/* Shouldn't get here because the CanExecute handler should prevent it. */
return;
}
e.Handled = executeHandler(content);
},
(sender, e) =>
{
var content = GetSelectedContent<TContent>();
if (content == null)
{
e.CanExecute = false;
return;
}
e.CanExecute = canExecuteHandler(content);
}));
}
/// <summary>
/// <see cref="ICommandService.AddCommandBindingForContentType{TContent}"/>
/// </summary>
public void AddCommandBindingForContentType<TContent>(
ICommand command,
Func<TContent, object, bool> executeHandler,
Func<TContent, object, bool> canExecuteHandler)
where TContent : class
{
/* When the workspace view changes,
* if the view is viewType then the specified command
* will be enabled depending on the result of the command.CanExecute.
* When the command is executed the current view's specified member
* will be called. */
CommandBindings.Add(new CommandBinding(command,
(sender, e) =>
{
var content = GetSelectedContent<TContent>();
if (content == null)
{
/* Shouldn't get here because the CanExecute handler
* should prevent it. */
return;
}
e.Handled = executeHandler(content, e.Parameter);
},
(sender, e) =>
{
var content = GetSelectedContent<TContent>();
if (content == null)
{
e.CanExecute = false;
return;
}
e.CanExecute = canExecuteHandler(content, e.Parameter);
}));
}
/// <summary>
/// <see cref="ICommandService.AddCommandBindingForContentType{TContent}"/>
/// </summary>
public void AddCommandBindingForContentType<TContent>(ICommand command,
Func<TContent, bool> executeHandler,
Func<TContent, bool> canExecuteHandler, KeyGesture keyGesture) where TContent : class
{
AddCommandBindingForContentType(command, executeHandler, canExecuteHandler);
var keybinding = new KeyBinding(command, keyGesture);
InputBindings.Add(keybinding);
}
public void AddCommandBinding(ICommand command,
Func<bool> executeHandler, Func<bool> canExecuteHandler)
{
CommandBindings.Add(new CommandBinding(command,
(sender, e) =>
{
e.Handled = executeHandler();
},
(sender, e) =>
{
e.CanExecute = canExecuteHandler();
}));
}
public void AddCommandBinding(ICommand command,
Func<bool> executeHandler, Func<bool> canExecuteHandler, KeyGesture keyGesture)
{
AddCommandBinding(command, executeHandler, canExecuteHandler);
var keybinding = new KeyBinding(command, keyGesture);
InputBindings.Add(keybinding);
}
public void RemoveCommandBinding(ICommand command)
{
ArgumentValidator.AssertNotNull(command, "command");
var commandBinding = (from binding in CommandBindings.OfType<CommandBinding>()
where binding.Command == command
select binding).FirstOrDefault();
if (commandBinding != null)
{
CommandBindings.Remove(commandBinding);
}
}
public void RegisterKeyGester(KeyGesture keyGesture, ICommand command)
{
var keybinding = new KeyBinding(command, keyGesture);
InputBindings.Add(keybinding);
}
#endregion
}
}