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-rw-r--r--frontends/framebuffer/clipboard.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/frontends/framebuffer/clipboard.c b/frontends/framebuffer/clipboard.c
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+++ b/frontends/framebuffer/clipboard.c
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+/*
+ * 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;