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Fixed 2942 - Wayland: Drag and Drop / Clipboard

x414e54

I have implemented Drag and Drop and Clipboard support for Wayland.

Drag and dropping files from nautilus to the testdropfile application seems to work and also copy and paste.
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slouken committed Nov 6, 2016
1 parent 7ad3a46 commit d767a450dc12ee66d06aa4eb21d63471a8cbf4d2
@@ -0,0 +1,123 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"

#if SDL_VIDEO_DRIVER_WAYLAND

#include "SDL_waylanddatamanager.h"
#include "SDL_waylandevents_c.h"

int
Wayland_SetClipboardText(_THIS, const char *text)
{
SDL_VideoData *video_data = NULL;
SDL_WaylandDataDevice *data_device = NULL;

int status = 0;

if (_this == NULL || _this->driverdata == NULL) {
status = SDL_SetError("Video driver uninitialized");
} else {
video_data = _this->driverdata;
/* TODO: Support more than one seat */
data_device = Wayland_get_data_device(video_data->input);
if (text[0] != '\0') {
SDL_WaylandDataSource* source = Wayland_data_source_create(_this);
Wayland_data_source_add_data(source, TEXT_MIME, text,
strlen(text) + 1);

status = Wayland_data_device_set_selection(data_device, source);
if (status != 0) {
Wayland_data_source_destroy(source);
}
} else {
status = Wayland_data_device_clear_selection(data_device);
}
}

return status;
}

char *
Wayland_GetClipboardText(_THIS)
{
SDL_VideoData *video_data = NULL;
SDL_WaylandDataDevice *data_device = NULL;

char *text = NULL;

void *buffer = NULL;
size_t length = 0;

if (_this == NULL || _this->driverdata == NULL) {
SDL_SetError("Video driver uninitialized");
} else {
video_data = _this->driverdata;
/* TODO: Support more than one seat */
data_device = Wayland_get_data_device(video_data->input);
if (data_device->selection_offer != NULL) {
buffer = Wayland_data_offer_receive(data_device->selection_offer,
&length, TEXT_MIME, SDL_TRUE);
if (length > 0) {
text = (char*) buffer;
}
} else if (data_device->selection_source != NULL) {
buffer = Wayland_data_source_get_data(data_device->selection_source,
&length, TEXT_MIME, SDL_TRUE);
if (length > 0) {
text = (char*) buffer;
}
}
}

if (text == NULL) {
text = SDL_strdup("");
}

return text;
}

SDL_bool
Wayland_HasClipboardText(_THIS)
{
SDL_VideoData *video_data = NULL;
SDL_WaylandDataDevice *data_device = NULL;

SDL_bool result = SDL_FALSE;
if (_this == NULL || _this->driverdata == NULL) {
SDL_SetError("Video driver uninitialized");
} else {
video_data = _this->driverdata;
data_device = Wayland_get_data_device(video_data->input);
if (data_device != NULL && Wayland_data_offer_has_mime(
data_device->selection_offer, TEXT_MIME)) {
result = SDL_TRUE;
} else if(data_device != NULL && Wayland_data_source_has_mime(
data_device->selection_source, TEXT_MIME)) {
result = SDL_TRUE;
}
}
return result;
}

#endif /* SDL_VIDEO_DRIVER_WAYLAND */

/* vi: set ts=4 sw=4 expandtab: */
@@ -0,0 +1,32 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"

#ifndef _SDL_waylandclipboard_h
#define _SDL_waylandclipboard_h

extern int Wayland_SetClipboardText(_THIS, const char *text);
extern char *Wayland_GetClipboardText(_THIS);
extern SDL_bool Wayland_HasClipboardText(_THIS);

#endif /* _SDL_waylandclipboard_h */

/* vi: set ts=4 sw=4 expandtab: */

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