106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
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* Copyright 2012 Michael Drake <tlsa@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* nsfb internal clipboard handling
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*/
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#include <assert.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include "utils/log.h"
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#include "netsurf/browser_window.h"
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#include "netsurf/clipboard.h"
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#include "framebuffer/gui.h"
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#include "framebuffer/clipboard.h"
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static struct gui_clipboard {
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char *buffer;
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size_t buffer_len;
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size_t length;
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} gui_clipboard;
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/**
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* Core asks front end for clipboard contents.
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*
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* \param buffer UTF-8 text, allocated by front end, ownership yeilded to core
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* \param length Byte length of UTF-8 text in buffer
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*/
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static void gui_get_clipboard(char **buffer, size_t *length)
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{
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*buffer = NULL;
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*length = 0;
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if (gui_clipboard.length > 0) {
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assert(gui_clipboard.buffer != NULL);
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NSLOG(netsurf, INFO, "Pasting %zd bytes: \"%s\"\n",
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gui_clipboard.length, gui_clipboard.buffer);
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*buffer = malloc(gui_clipboard.length);
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if (*buffer != NULL) {
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memcpy(*buffer, gui_clipboard.buffer,
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gui_clipboard.length);
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*length = gui_clipboard.length;
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}
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}
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}
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/**
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* Core tells front end to put given text in clipboard
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*
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* \param buffer UTF-8 text, owned by core
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* \param length Byte length of UTF-8 text in buffer
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* \param styles Array of styles given to text runs, owned by core, or NULL
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* \param n_styles Number of text run styles in array
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*/
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static void gui_set_clipboard(const char *buffer, size_t length,
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nsclipboard_styles styles[], int n_styles)
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{
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if (gui_clipboard.buffer_len < length + 1) {
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/* Make buffer big enough */
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char *new_buff;
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new_buff = realloc(gui_clipboard.buffer, length + 1);
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if (new_buff == NULL)
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return;
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gui_clipboard.buffer = new_buff;
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gui_clipboard.buffer_len = length + 1;
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}
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gui_clipboard.length = 0;
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memcpy(gui_clipboard.buffer, buffer, length);
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gui_clipboard.length = length;
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gui_clipboard.buffer[gui_clipboard.length] = '\0';
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}
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static struct gui_clipboard_table clipboard_table = {
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.get = gui_get_clipboard,
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.set = gui_set_clipboard,
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};
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struct gui_clipboard_table *framebuffer_clipboard_table = &clipboard_table;
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