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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
namespace ElmSharp
{
/// <summary>
/// The Button is a widget works as a clickable input element to trigger events.
/// </summary>
public class Button : Layout
{
private SmartEvent _clicked;
private SmartEvent _repeated;
private SmartEvent _pressed;
private SmartEvent _released;
/// <summary>
/// Creates and initializes a new instance of the Button class.
/// </summary>
/// <param name="parent">
/// The EvasObject to which the new Button will be attached as a child.
/// </param>
public Button(EvasObject parent) : base(parent)
{
_clicked = new SmartEvent(this, this.RealHandle, "clicked");
_repeated = new SmartEvent(this, this.RealHandle, "repeated");
_pressed = new SmartEvent(this, this.RealHandle, "pressed");
_released = new SmartEvent(this, this.RealHandle, "unpressed");
_clicked.On += (sender, e) =>
{
Clicked?.Invoke(this, EventArgs.Empty);
};
_repeated.On += (sender, e) =>
{
Repeated?.Invoke(this, EventArgs.Empty);
};
_pressed.On += (sender, e) =>
{
Pressed?.Invoke(this, EventArgs.Empty);
};
_released.On += (sender, e) =>
{
Released?.Invoke(this, EventArgs.Empty);
};
}
/// <summary>
/// Clicked will be triggered when Button is clicked.
/// </summary>
public event EventHandler Clicked;
/// <summary>
/// Repeated will be triggered when Button is pressed without releasing it.
/// </summary>
public event EventHandler Repeated;
/// <summary>
/// Pressed will be triggered when the Button is pressed.
/// </summary>
public event EventHandler Pressed;
/// <summary>
/// Released will be triggered when the Button is released after being pressed.
/// </summary>
public event EventHandler Released;
/// <summary>
/// Sets or gets the autorepeat feature of a given Button.
/// </summary>
/// <remarks>
/// Autorepeat feature means autorepeat event generated when the button is kept pressed.
/// When set AutoRepeat to false, no autorepeat is performed and buttons will trigger Clicked event when they are clicked.
/// When set to true, keeping a button pressed continuously trigger Repeated event until the button is released.
/// The time it takes until it starts triggering Repeated is given by AutoRepeatInitialTime,
/// and the time between each new emission is given by AutoRepeatGapTimeout.
/// </remarks>
public bool AutoRepeat
{
get
{
return !Interop.Elementary.elm_button_autorepeat_get(RealHandle);
}
set
{
Interop.Elementary.elm_button_autorepeat_set(RealHandle, value);
}
}
/// <summary>
/// Sets or gets the initial timeout before the Repeat event is generated.
/// </summary>
public double AutoRepeatInitialTime
{
get
{
return Interop.Elementary.elm_button_autorepeat_initial_timeout_get(RealHandle);
}
set
{
Interop.Elementary.elm_button_autorepeat_initial_timeout_set(RealHandle, value);
}
}
/// <summary>
/// Sets or gets the interval between each generated Repeat event.
/// </summary>
public double AutoRepeatGapTimeout
{
get
{
return Interop.Elementary.elm_button_autorepeat_gap_timeout_get(RealHandle);
}
set
{
Interop.Elementary.elm_button_autorepeat_gap_timeout_set(RealHandle, value);
}
}
[Obsolete("DeleteColorClass is obsolete, please use EdjeObject.DeleteColorClass(string)")]
public void DeleteColorClass(string part)
{
Interop.Elementary.edje_object_color_class_del(Handle, part);
}
/// <summary>
/// Sets or gets the BackgroundColor of a given Button in normal and pressed status.
/// </summary>
public override Color BackgroundColor
{
set
{
if (value.IsDefault)
{
EdjeObject.DeleteColorClass("button/bg");
EdjeObject.DeleteColorClass("button/bg_pressed");
}
else
{
SetPartColor("bg", value);
SetPartColor("bg_pressed", value);
}
_backgroundColor = value;
}
}
protected override IntPtr CreateHandle(EvasObject parent)
{
IntPtr handle = Interop.Elementary.elm_layout_add(parent.Handle);
Interop.Elementary.elm_layout_theme_set(handle, "layout", "elm_widget", "default");
RealHandle = Interop.Elementary.elm_button_add(handle);
Interop.Elementary.elm_object_part_content_set(handle, "elm.swallow.content", RealHandle);
return handle;
}
}
}
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