SDL 2.0
SDL_dropevents.c
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21#include "../SDL_internal.h"
22
23/* Drag and drop event handling code for SDL */
24
25#include "SDL_events.h"
26#include "SDL_events_c.h"
27#include "SDL_dropevents_c.h"
28
29#include "../video/SDL_sysvideo.h" /* for SDL_Window internals. */
30
31
32static int
33SDL_SendDrop(SDL_Window *window, const SDL_EventType evtype, const char *data)
34{
35 static SDL_bool app_is_dropping = SDL_FALSE;
36 int posted = 0;
37
38 /* Post the event, if desired */
39 if (SDL_GetEventState(evtype) == SDL_ENABLE) {
40 const SDL_bool need_begin = window ? !window->is_dropping : !app_is_dropping;
42
43 if (need_begin) {
45 event.type = SDL_DROPBEGIN;
46
47 if (window) {
48 event.drop.windowID = window->id;
49 }
50
51 posted = (SDL_PushEvent(&event) > 0);
52 if (!posted) {
53 return 0;
54 }
55 if (window) {
56 window->is_dropping = SDL_TRUE;
57 } else {
58 app_is_dropping = SDL_TRUE;
59 }
60 }
61
63 event.type = evtype;
64 event.drop.file = data ? SDL_strdup(data) : NULL;
65 event.drop.windowID = window ? window->id : 0;
66 posted = (SDL_PushEvent(&event) > 0);
67
68 if (posted && (evtype == SDL_DROPCOMPLETE)) {
69 if (window) {
70 window->is_dropping = SDL_FALSE;
71 } else {
72 app_is_dropping = SDL_FALSE;
73 }
74 }
75 }
76 return posted;
77}
78
79int
81{
82 return SDL_SendDrop(window, SDL_DROPFILE, file);
83}
84
85int
87{
89}
90
91int
93{
95}
96
97
98/* vi: set ts=4 sw=4 expandtab: */
static int SDL_SendDrop(SDL_Window *window, const SDL_EventType evtype, const char *data)
int SDL_SendDropText(SDL_Window *window, const char *text)
int SDL_SendDropFile(SDL_Window *window, const char *file)
int SDL_SendDropComplete(SDL_Window *window)
#define SDL_PushEvent
#define SDL_strdup
SDL_EventType
The types of events that can be delivered.
Definition: SDL_events.h:56
@ SDL_DROPBEGIN
Definition: SDL_events.h:143
@ SDL_DROPTEXT
Definition: SDL_events.h:142
@ SDL_DROPCOMPLETE
Definition: SDL_events.h:144
@ SDL_DROPFILE
Definition: SDL_events.h:141
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
#define SDL_ENABLE
Definition: SDL_events.h:759
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
struct _cl_event * event
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
SDL_bool
Definition: SDL_stdinc.h:162
@ SDL_TRUE
Definition: SDL_stdinc.h:164
@ SDL_FALSE
Definition: SDL_stdinc.h:163
#define NULL
Definition: begin_code.h:167
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
The type used to identify a window.
Definition: SDL_sysvideo.h:74
static char text[MAX_TEXT_LENGTH]
Definition: testime.c:47
General event structure.
Definition: SDL_events.h:558