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/*
* Copyright (C) 2024 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* HOLDER OR CONTRIBUTORS 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.
*/
#include "config.h"
#include "WPEGestureController.h"
/**
* WPEGestureController:
* @See_also: #WPEView
*
* A gesture controller.
*
* This interface enables implementing custom gesture detection algorithms.
* Objects of classes implementing this interface can be supplied to
* #WPEView so that they are being used instead of the default gesture detector.
*/
G_DEFINE_INTERFACE(WPEGestureController, wpe_gesture_controller, G_TYPE_OBJECT)
static void wpe_gesture_controller_default_init(WPEGestureControllerInterface*)
{
}
/**
* wpe_gesture_controller_handle_event:
* @controller: a #WPEGestureController
* @event: a #WPEEvent
*
* Get the gesture detected by @controller if any was detected during processing of @event.
*/
void wpe_gesture_controller_handle_event(WPEGestureController* controller, WPEEvent* event)
{
g_return_if_fail(controller);
g_return_if_fail(event);
auto* controllerInterface = WPE_GESTURE_CONTROLLER_GET_IFACE(controller);
controllerInterface->handle_event(controller, event);
}
/**
* wpe_gesture_controller_cancel:
* @controller: a #WPEGestureController
*
* Cancels ongoing gesture detection if any.
*/
void wpe_gesture_controller_cancel(WPEGestureController* controller)
{
auto* controllerInterface = WPE_GESTURE_CONTROLLER_GET_IFACE(controller);
controllerInterface->cancel(controller);
}
/**
* wpe_gesture_controller_get_gesture:
* @controller: a #WPEGestureController
*
* Get currently detected gesture.
*
* Returns: a #WPEGesture
*/
WPEGesture wpe_gesture_controller_get_gesture(WPEGestureController* controller)
{
g_return_val_if_fail(controller, WPE_GESTURE_NONE);
auto* controllerInterface = WPE_GESTURE_CONTROLLER_GET_IFACE(controller);
return controllerInterface->get_gesture(controller);
}
/**
* wpe_gesture_controller_get_gesture_position:
* @controller: a #WPEGestureController
* @x: (out): location to store x coordinate
* @y: (out): location to store y coordinate
*
* Get the position of currently detected gesture. If it doesn't have
* a position, %FALSE is returned.
*
* Returns: %TRUE if position is returned in @x and @y,
* or %FALSE if currently detected gesture doesn't have a positon
*/
gboolean wpe_gesture_controller_get_gesture_position(WPEGestureController* controller, double* x, double* y)
{
g_return_val_if_fail(controller, FALSE);
g_return_val_if_fail(x && y, FALSE);
auto* controllerInterface = WPE_GESTURE_CONTROLLER_GET_IFACE(controller);
return controllerInterface->get_gesture_position(controller, x, y);
}
/**
* wpe_gesture_controller_get_gesture_delta:
* @controller: a #WPEGestureController
* @x: (out): location to store delta on x axis
* @y: (out): location to store delta on y axis
*
* Get the delta of currently detected gesture such as "drag" gesture.
* If it doesn't have a delta, %FALSE is returned.
*
* Returns: %TRUE if delta is returned in @x and @y,
* or %FALSE if currently detected gesture doesn't have a delta
*/
gboolean wpe_gesture_controller_get_gesture_delta(WPEGestureController* controller, double* x, double* y)
{
g_return_val_if_fail(controller, FALSE);
g_return_val_if_fail(x && y, FALSE);
auto* controllerInterface = WPE_GESTURE_CONTROLLER_GET_IFACE(controller);
return controllerInterface->get_gesture_delta(controller, x, y);
}
/**
* wpe_gesture_controller_is_drag_begin:
* @controller: a #WPEGestureController
*
* Check if the current drag gesture is a beginning of the sequence being detected.
*
* Returns: %TRUE if current drag gesture is a beginning of the sequence being detected,
* or %FALSE otherwise
*/
gboolean wpe_gesture_controller_is_drag_begin(WPEGestureController* controller)
{
g_return_val_if_fail(controller, FALSE);
auto* controllerInterface = WPE_GESTURE_CONTROLLER_GET_IFACE(controller);
return controllerInterface->is_drag_begin(controller);
}
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