/*
 * This file is part of gtkD.
 *
 * gtkD is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version, with
 * some exceptions, please read the COPYING file.
 *
 * gtkD is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with gtkD; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 */

// generated automatically - do not change
// find conversion definition on APILookup.txt
// implement new conversion functionalities on the wrap.utils pakage


module gtk.GestureLongPress;

private import glib.ConstructionException;
private import gobject.ObjectG;
private import gobject.Signals;
private import gtk.Gesture;
private import gtk.GestureSingle;
private import gtk.Widget;
private import gtkc.gtk;
public  import gtkc.gtktypes;
private import std.algorithm;


/**
 * #GtkGestureLongPress is a #GtkGesture implementation able to recognize
 * long presses, triggering the #GtkGestureLongPress::pressed after the
 * timeout is exceeded.
 * 
 * If the touchpoint is lifted before the timeout passes, or if it drifts
 * too far of the initial press point, the #GtkGestureLongPress::cancelled
 * signal will be emitted.
 */
public class GestureLongPress : GestureSingle
{
	/** the main Gtk struct */
	protected GtkGestureLongPress* gtkGestureLongPress;

	/** Get the main Gtk struct */
	public GtkGestureLongPress* getGestureLongPressStruct()
	{
		return gtkGestureLongPress;
	}

	/** the main Gtk struct as a void* */
	protected override void* getStruct()
	{
		return cast(void*)gtkGestureLongPress;
	}

	protected override void setStruct(GObject* obj)
	{
		gtkGestureLongPress = cast(GtkGestureLongPress*)obj;
		super.setStruct(obj);
	}

	/**
	 * Sets our main struct and passes it to the parent class.
	 */
	public this (GtkGestureLongPress* gtkGestureLongPress, bool ownedRef = false)
	{
		this.gtkGestureLongPress = gtkGestureLongPress;
		super(cast(GtkGestureSingle*)gtkGestureLongPress, ownedRef);
	}


	/** */
	public static GType getType()
	{
		return gtk_gesture_long_press_get_type();
	}

	/**
	 * Returns a newly created #GtkGesture that recognizes long presses.
	 *
	 * Params:
	 *     widget = a #GtkWidget
	 *
	 * Returns: a newly created #GtkGestureLongPress
	 *
	 * Since: 3.14
	 *
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this(Widget widget)
	{
		auto p = gtk_gesture_long_press_new((widget is null) ? null : widget.getWidgetStruct());
		
		if(p is null)
		{
			throw new ConstructionException("null returned by new");
		}
		
		this(cast(GtkGestureLongPress*) p, true);
	}

	protected class OnCancelledDelegateWrapper
	{
		static OnCancelledDelegateWrapper[] listeners;
		void delegate(GestureLongPress) dlg;
		gulong handlerId;
		
		this(void delegate(GestureLongPress) dlg)
		{
			this.dlg = dlg;
			this.listeners ~= this;
		}
		
		void remove(OnCancelledDelegateWrapper source)
		{
			foreach(index, wrapper; listeners)
			{
				if (wrapper.handlerId == source.handlerId)
				{
					listeners[index] = null;
					listeners = std.algorithm.remove(listeners, index);
					break;
				}
			}
		}
	}

	/**
	 * This signal is emitted whenever a press moved too far, or was released
	 * before #GtkGestureLongPress::pressed happened.
	 *
	 * Since: 3.14
	 */
	gulong addOnCancelled(void delegate(GestureLongPress) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
	{
		auto wrapper = new OnCancelledDelegateWrapper(dlg);
		wrapper.handlerId = Signals.connectData(
			this,
			"cancelled",
			cast(GCallback)&callBackCancelled,
			cast(void*)wrapper,
			cast(GClosureNotify)&callBackCancelledDestroy,
			connectFlags);
		return wrapper.handlerId;
	}
	
	extern(C) static void callBackCancelled(GtkGestureLongPress* gesturelongpressStruct, OnCancelledDelegateWrapper wrapper)
	{
		wrapper.dlg(wrapper.outer);
	}
	
	extern(C) static void callBackCancelledDestroy(OnCancelledDelegateWrapper wrapper, GClosure* closure)
	{
		wrapper.remove(wrapper);
	}

	protected class OnPressedDelegateWrapper
	{
		static OnPressedDelegateWrapper[] listeners;
		void delegate(double, double, GestureLongPress) dlg;
		gulong handlerId;
		
		this(void delegate(double, double, GestureLongPress) dlg)
		{
			this.dlg = dlg;
			this.listeners ~= this;
		}
		
		void remove(OnPressedDelegateWrapper source)
		{
			foreach(index, wrapper; listeners)
			{
				if (wrapper.handlerId == source.handlerId)
				{
					listeners[index] = null;
					listeners = std.algorithm.remove(listeners, index);
					break;
				}
			}
		}
	}

	/**
	 * This signal is emitted whenever a press goes unmoved/unreleased longer than
	 * what the GTK+ defaults tell.
	 *
	 * Params:
	 *     x = the X coordinate where the press happened, relative to the widget allocation
	 *     y = the Y coordinate where the press happened, relative to the widget allocation
	 *
	 * Since: 3.14
	 */
	gulong addOnPressed(void delegate(double, double, GestureLongPress) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
	{
		auto wrapper = new OnPressedDelegateWrapper(dlg);
		wrapper.handlerId = Signals.connectData(
			this,
			"pressed",
			cast(GCallback)&callBackPressed,
			cast(void*)wrapper,
			cast(GClosureNotify)&callBackPressedDestroy,
			connectFlags);
		return wrapper.handlerId;
	}
	
	extern(C) static void callBackPressed(GtkGestureLongPress* gesturelongpressStruct, double x, double y, OnPressedDelegateWrapper wrapper)
	{
		wrapper.dlg(x, y, wrapper.outer);
	}
	
	extern(C) static void callBackPressedDestroy(OnPressedDelegateWrapper wrapper, GClosure* closure)
	{
		wrapper.remove(wrapper);
	}
}