1 files changed, 131 insertions, 0 deletions
diff --git a/frontends/windows/clipboard.c b/frontends/windows/clipboard.c
new file mode 100644
index 000000000..bc52a4594
--- /dev/null
+++ b/frontends/windows/clipboard.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2019 Vincent Sanders <vince@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
+ * win32 clipboard implementation.
+ */
+
+#include <windows.h>
+
+#include "utils/log.h"
+#include "netsurf/clipboard.h"
+
+#include "windows/clipboard.h"
+
+/**
+ * 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)
+{
+	HANDLE clipboard_handle;
+	wchar_t *content;
+
+	if (OpenClipboard(NULL)) {
+		clipboard_handle = GetClipboardData(CF_UNICODETEXT);
+		if (clipboard_handle != NULL) {
+			content = GlobalLock(clipboard_handle);
+			if (content != NULL) {
+				int required_len;
+				size_t content_len;
+
+				content_len = wcslen(content);
+
+				/* compute length */
+				required_len = WideCharToMultiByte(
+							CP_UTF8,
+							WC_NO_BEST_FIT_CHARS,
+							content,
+							content_len,
+							NULL,
+							0,
+							NULL,
+							NULL);
+				/* allocate buffer and do conversion */
+				*buffer = malloc(required_len);
+				*length = WideCharToMultiByte(
+							CP_UTF8,
+							WC_NO_BEST_FIT_CHARS,
+							content,
+							content_len,
+							*buffer,
+							required_len,
+							NULL,
+							NULL);
+
+				GlobalUnlock(clipboard_handle);
+			}
+		}
+		CloseClipboard();
+	}
+}
+
+
+/**
+ * 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)
+{
+	HGLOBAL hglbCopy;
+	wchar_t *content; /* clipboard content */
+	int content_len; /* characters in content */
+
+	if (OpenClipboard(NULL)) {
+		EmptyClipboard();
+		content_len = MultiByteToWideChar(CP_UTF8,
+						  MB_PRECOMPOSED,
+						  buffer, length,
+						  NULL, 0);
+
+		hglbCopy = GlobalAlloc(GMEM_MOVEABLE,
+				       ((content_len + 1) * sizeof(wchar_t)));
+		if (hglbCopy != NULL) {
+			content = GlobalLock(hglbCopy);
+			MultiByteToWideChar(CP_UTF8,
+					    MB_PRECOMPOSED,
+					    buffer, length,
+					    content, content_len);
+			content[content_len] = 0; /* null terminate */
+
+			GlobalUnlock(hglbCopy);
+			SetClipboardData(CF_UNICODETEXT, hglbCopy);
+		}
+		CloseClipboard();
+	}
+}
+
+
+
+static struct gui_clipboard_table clipboard_table = {
+	.get = gui_get_clipboard,
+	.set = gui_set_clipboard,
+};
+
+struct gui_clipboard_table *win32_clipboard_table = &clipboard_table;