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Wayland: Implement clipboard paste

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This commit is contained in:
Emmanuel Gil Peyrot 2018-10-10 19:21:26 +02:00 committed by linkmauve
parent 3c4b9a7eef
commit 8b54e28c4e
3 changed files with 92 additions and 4 deletions
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11
src/wl_init.c
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@ -1196,6 +1196,14 @@ int _glfwPlatformInit(void)
wl_data_device_manager_get_data_device(_glfw.wl.dataDeviceManager,
_glfw.wl.seat);
wl_data_device_add_listener(_glfw.wl.dataDevice, &dataDeviceListener, NULL);
_glfw.wl.clipboardString = malloc(4096);
if (!_glfw.wl.clipboardString)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Unable to allocate clipboard memory");
return GLFW_FALSE;
}
_glfw.wl.clipboardSize = 4096;
}
return GLFW_TRUE;
@ -1285,6 +1293,9 @@ void _glfwPlatformTerminate(void)
close(_glfw.wl.timerfd);
if (_glfw.wl.cursorTimerfd >= 0)
close(_glfw.wl.cursorTimerfd);
if (_glfw.wl.clipboardString)
free(_glfw.wl.clipboardString);
}
const char* _glfwPlatformGetVersionString(void)

2
src/wl_platform.h
View File

@ -256,6 +256,8 @@ typedef struct _GLFWlibraryWayland
int32_t keyboardRepeatDelay;
int keyboardLastKey;
int keyboardLastScancode;
char* clipboardString;
size_t clipboardSize;
int timerfd;
short int keycodes[256];
short int scancodes[GLFW_KEY_LAST + 1];

81
src/wl_window.c
View File

@ -1576,14 +1576,89 @@ void _glfwPlatformSetClipboardString(const char* string)
"Wayland: Clipboard setting not implemented yet");
}
static GLFWbool growClipboardString(void)
{
char* clipboard = _glfw.wl.clipboardString;
clipboard = realloc(clipboard, _glfw.wl.clipboardSize * 2);
if (!clipboard)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Impossible to grow clipboard string");
return GLFW_FALSE;
}
_glfw.wl.clipboardString = clipboard;
_glfw.wl.clipboardSize = _glfw.wl.clipboardSize * 2;
return GLFW_TRUE;
}
const char* _glfwPlatformGetClipboardString(void)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Clipboard getting not implemented yet");
int fds[2];
int ret;
size_t len = 0;
if (!_glfw.wl.dataOffer)
{
_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
"No clipboard data has been sent yet");
return NULL;
}
ret = pipe2(fds, O_CLOEXEC);
if (ret < 0)
{
// TODO: also report errno maybe?
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Impossible to create clipboard pipe fds");
return NULL;
}
wl_data_offer_receive(_glfw.wl.dataOffer, "text/plain;charset=utf-8", fds[1]);
close(fds[1]);
// XXX: this is a huge hack, this function shouldn’t be synchronous!
handleEvents(-1);
while (1)
{
// Grow the clipboard if we need to paste something bigger, there is no
// shrink operation yet.
if (len + 4096 > _glfw.wl.clipboardSize)
{
if (!growClipboardString())
{
close(fds[0]);
return NULL;
}
}
// Then read from the fd to the clipboard, handling all known errors.
ret = read(fds[0], _glfw.wl.clipboardString + len, 4096);
if (ret == 0)
break;
if (ret == -1 && errno == EINTR)
continue;
if (ret == -1)
{
// TODO: also report errno maybe.
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Impossible to read from clipboard fd");
close(fds[0]);
return NULL;
}
len += ret;
}
close(fds[0]);
if (len + 1 > _glfw.wl.clipboardSize)
{
if (!growClipboardString())
return NULL;
}
_glfw.wl.clipboardString[len] = '\0';
return _glfw.wl.clipboardString;
}
void _glfwPlatformGetRequiredInstanceExtensions(char** extensions)
{
if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_wayland_surface)