SDL_dropevents.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2018 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"
/* Drag and drop event handling code for SDL */
#include "SDL_events.h"
#include "SDL_events_c.h"
#include "SDL_dropevents_c.h"
#include "../video/SDL_sysvideo.h" /* for SDL_Window internals. */
static int
SDL_SendDrop(SDL_Window *window, const SDL_EventType evtype, const char *data)
{
static SDL_bool app_is_dropping = SDL_FALSE;
int posted = 0;
/* Post the event, if desired */
if (SDL_GetEventState(evtype) == SDL_ENABLE) {
const SDL_bool need_begin = window ? !window->is_dropping : !app_is_dropping;
SDL_Event event;
if (need_begin) {
SDL_zero(event);
event.type = SDL_DROPBEGIN;
if (window) {
event.drop.windowID = window->id;
}
posted = (SDL_PushEvent(&event) > 0);
if (!posted) {
return 0;
}
if (window) {
window->is_dropping = SDL_TRUE;
} else {
app_is_dropping = SDL_TRUE;
}
}
SDL_zero(event);
event.type = evtype;
event.drop.file = data ? SDL_strdup(data) : NULL;
event.drop.windowID = window ? window->id : 0;
posted = (SDL_PushEvent(&event) > 0);
if (posted && (evtype == SDL_DROPCOMPLETE)) {
if (window) {
window->is_dropping = SDL_FALSE;
} else {
app_is_dropping = SDL_FALSE;
}
}
}
return posted;
}
int
SDL_SendDropFile(SDL_Window *window, const char *file)
{
return SDL_SendDrop(window, SDL_DROPFILE, file);
}
int
SDL_SendDropText(SDL_Window *window, const char *text)
{
return SDL_SendDrop(window, SDL_DROPTEXT, text);
}
int
SDL_SendDropComplete(SDL_Window *window)
{
return SDL_SendDrop(window, SDL_DROPCOMPLETE, NULL);
}
/* vi: set ts=4 sw=4 expandtab: */
SDL_DROPTEXT
Definition: SDL_events.h:139
SDL_TRUE
Definition: SDL_stdinc.h:142
SDL_SendDrop
static int SDL_SendDrop(SDL_Window *window, const SDL_EventType evtype, const char *data)
Definition: SDL_dropevents.c:33
SDL_SendDropFile
int SDL_SendDropFile(SDL_Window *window, const char *file)
Definition: SDL_dropevents.c:80
SDL_FALSE
Definition: SDL_stdinc.h:141
SDL_events.h
SDL_Window::is_dropping
SDL_bool is_dropping
Definition: SDL_sysvideo.h:102
SDL_ENABLE
#define SDL_ENABLE
Definition: SDL_events.h:722
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_DROPBEGIN
Definition: SDL_events.h:140
SDL_SendDropComplete
int SDL_SendDropComplete(SDL_Window *window)
Definition: SDL_dropevents.c:92
SDL_SendDropText
int SDL_SendDropText(SDL_Window *window, const char *text)
Definition: SDL_dropevents.c:86
SDL_GetEventState
#define SDL_GetEventState(type)
Definition: SDL_events.h:735
event
struct _cl_event * event
Definition: SDL_opengl_glext.h:2649
SDL_PushEvent
#define SDL_PushEvent
Definition: SDL_dynapi_overrides.h:125
SDL_EventType
SDL_EventType
The types of events that can be delivered.
Definition: SDL_events.h:55
SDL_dropevents_c.h
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
SDL_DROPFILE
Definition: SDL_events.h:138
SDL_events_c.h
NULL
#define NULL
Definition: begin_code.h:164
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:139
text
static char text[MAX_TEXT_LENGTH]
Definition: testime.c:47
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_strdup
#define SDL_strdup
Definition: SDL_dynapi_overrides.h:397
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_Window::id
Uint32 id
Definition: SDL_sysvideo.h:76
SDL_Event
General event structure.
Definition: SDL_events.h:525
SDL_DROPCOMPLETE
Definition: SDL_events.h:141