netsurf/framebuffer/clipboard.c
Vincent Sanders c105738fa3 Change LOG() macro to be varadic
This changes the LOG macro to be varadic removing the need for all
callsites to have double bracketing and allows for future improvement
on how we use the logging macros.

The callsites were changed with coccinelle and the changes checked by
hand. Compile tested for several frontends but not all.

A formatting annotation has also been added which allows the compiler
to check the parameters and types passed to the logging.
2015-05-28 16:08:46 +01:00

106 lines
2.7 KiB
C

/*
* Copyright 2012 Michael Drake <tlsa@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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/>.
*/
/** \file
* nsfb internal clipboard handling
*/
#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "utils/log.h"
#include "desktop/browser.h"
#include "desktop/gui_clipboard.h"
#include "framebuffer/gui.h"
#include "framebuffer/clipboard.h"
static struct gui_clipboard {
char *buffer;
size_t buffer_len;
size_t length;
} gui_clipboard;
/**
* Core asks front end for clipboard contents.
*
* \param buffer UTF-8 text, allocated by front end, ownership yeilded to core
* \param length Byte length of UTF-8 text in buffer
*/
static void gui_get_clipboard(char **buffer, size_t *length)
{
*buffer = NULL;
*length = 0;
if (gui_clipboard.length > 0) {
assert(gui_clipboard.buffer != NULL);
LOG("Pasting %zd bytes: \"%s\"\n",
gui_clipboard.length, gui_clipboard.buffer);
*buffer = malloc(gui_clipboard.length);
if (*buffer != NULL) {
memcpy(*buffer, gui_clipboard.buffer,
gui_clipboard.length);
*length = gui_clipboard.length;
}
}
}
/**
* Core tells front end to put given text in clipboard
*
* \param buffer UTF-8 text, owned by core
* \param length Byte length of UTF-8 text in buffer
* \param styles Array of styles given to text runs, owned by core, or NULL
* \param n_styles Number of text run styles in array
*/
static void gui_set_clipboard(const char *buffer, size_t length,
nsclipboard_styles styles[], int n_styles)
{
if (gui_clipboard.buffer_len < length + 1) {
/* Make buffer big enough */
char *new_buff;
new_buff = realloc(gui_clipboard.buffer, length + 1);
if (new_buff == NULL)
return;
gui_clipboard.buffer = new_buff;
gui_clipboard.buffer_len = length + 1;
}
gui_clipboard.length = 0;
memcpy(gui_clipboard.buffer, buffer, length);
gui_clipboard.length = length;
gui_clipboard.buffer[gui_clipboard.length] = '\0';
}
static struct gui_clipboard_table clipboard_table = {
.get = gui_get_clipboard,
.set = gui_set_clipboard,
};
struct gui_clipboard_table *framebuffer_clipboard_table = &clipboard_table;