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Diffstat (limited to 'frontends/windows/clipboard.c')
-rw-r--r-- | frontends/windows/clipboard.c | 131 |
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; |