1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef __EMSCRIPTEN__
#define FORBIDDEN_SYMBOL_EXCEPTION_FILE
#define FORBIDDEN_SYMBOL_EXCEPTION_getenv
#include <emscripten.h>
#include "backends/platform/sdl/emscripten/emscripten.h"
#include "common/file.h"
// Inline JavaScript, see https://emscripten.org/docs/api_reference/emscripten.h.html#inline-assembly-javascript for details
EM_JS(bool, isFullscreen, (), {
return !!document.fullscreenElement;
});
EM_JS(void, toggleFullscreen, (bool enable), {
let canvas = document.getElementById('canvas');
if (enable && !document.fullscreenElement) {
canvas.requestFullscreen();
}
if (!enable && document.fullscreenElement) {
document.exitFullscreen();
}
});
EM_JS(void, downloadFile, (const char *filenamePtr, char *dataPtr, int dataSize), {
const view = new Uint8Array(Module.HEAPU8.buffer, dataPtr, dataSize);
const blob = new Blob([view], {
type:
'octet/stream'
});
const filename = UTF8ToString(filenamePtr);
setTimeout(() => {
const a = document.createElement('a');
a.style = 'display:none';
document.body.appendChild(a);
const url = window.URL.createObjectURL(blob);
a.href = url;
a.download = filename;
a.click();
window.URL.revokeObjectURL(url);
document.body.removeChild(a);
}, 0);
});
// Overridden functions
bool OSystem_Emscripten::hasFeature(Feature f) {
if (f == kFeatureFullscreenMode)
return true;
if (f == kFeatureNoQuit)
return true;
return OSystem_POSIX::hasFeature(f);
}
bool OSystem_Emscripten::getFeatureState(Feature f) {
if (f == kFeatureFullscreenMode) {
return isFullscreen();
} else {
return OSystem_POSIX::getFeatureState(f);
}
}
void OSystem_Emscripten::setFeatureState(Feature f, bool enable) {
if (f == kFeatureFullscreenMode) {
toggleFullscreen(enable);
} else {
OSystem_POSIX::setFeatureState(f, enable);
}
}
Common::Path OSystem_Emscripten::getDefaultLogFileName() {
return Common::Path("/tmp/scummvm.log");
}
Common::Path OSystem_Emscripten::getDefaultConfigFileName() {
return Common::Path(Common::String::format("%s/scummvm.ini", getenv("HOME")));
}
Common::Path OSystem_Emscripten::getScreenshotsPath() {
return Common::Path("/tmp/");
}
Common::Path OSystem_Emscripten::getDefaultIconsPath() {
return Common::Path(DATA_PATH"/gui-icons/");
}
bool OSystem_Emscripten::displayLogFile() {
if (_logFilePath.empty())
return false;
exportFile(_logFilePath);
return true;
}
#ifdef USE_OPENGL
OSystem_SDL::GraphicsManagerType OSystem_Emscripten::getDefaultGraphicsManager() const {
return GraphicsManagerOpenGL;
}
#endif
void OSystem_Emscripten::exportFile(const Common::Path &filename) {
Common::File file;
Common::FSNode node(filename);
file.open(node);
if (!file.isOpen()) {
warning("Could not open file %s!", filename.toString(Common::Path::kNativeSeparator).c_str());
return;
}
Common::String exportName = filename.getLastComponent().toString(Common::Path::kNativeSeparator);
const int32 size = file.size();
char *bytes = new char[size + 1];
file.read(bytes, size);
file.close();
downloadFile(exportName.c_str(), bytes, size);
delete[] bytes;
}
#endif
|
