mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-23 20:46:50 +03:00
95b8d12950
This allows clipboard to operate (cut, copy, paste and delete) in the win32 front end. The clipboard is set and read in windows unicode mode and then converted to/from utf-8 for the browser core.
132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
/*
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* Copyright 2019 Vincent Sanders <vince@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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/**
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* \file
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* win32 clipboard implementation.
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*/
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#include <windows.h>
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#include "utils/log.h"
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#include "netsurf/clipboard.h"
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#include "windows/clipboard.h"
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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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HANDLE clipboard_handle;
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wchar_t *content;
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if (OpenClipboard(NULL)) {
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clipboard_handle = GetClipboardData(CF_UNICODETEXT);
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if (clipboard_handle != NULL) {
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content = GlobalLock(clipboard_handle);
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if (content != NULL) {
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int required_len;
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size_t content_len;
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content_len = wcslen(content);
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/* compute length */
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required_len = WideCharToMultiByte(
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CP_UTF8,
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WC_NO_BEST_FIT_CHARS,
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content,
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content_len,
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NULL,
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0,
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NULL,
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NULL);
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/* allocate buffer and do conversion */
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*buffer = malloc(required_len);
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*length = WideCharToMultiByte(
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CP_UTF8,
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WC_NO_BEST_FIT_CHARS,
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content,
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content_len,
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*buffer,
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required_len,
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NULL,
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NULL);
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GlobalUnlock(clipboard_handle);
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}
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}
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CloseClipboard();
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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
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gui_set_clipboard(const char *buffer,
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size_t length,
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nsclipboard_styles styles[],
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int n_styles)
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{
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HGLOBAL hglbCopy;
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wchar_t *content; /* clipboard content */
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int content_len; /* characters in content */
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if (OpenClipboard(NULL)) {
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EmptyClipboard();
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content_len = MultiByteToWideChar(CP_UTF8,
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MB_PRECOMPOSED,
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buffer, length,
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NULL, 0);
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hglbCopy = GlobalAlloc(GMEM_MOVEABLE,
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((content_len + 1) * sizeof(wchar_t)));
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if (hglbCopy != NULL) {
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content = GlobalLock(hglbCopy);
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MultiByteToWideChar(CP_UTF8,
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MB_PRECOMPOSED,
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buffer, length,
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content, content_len);
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content[content_len] = 0; /* null terminate */
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GlobalUnlock(hglbCopy);
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SetClipboardData(CF_UNICODETEXT, hglbCopy);
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}
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CloseClipboard();
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}
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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 *win32_clipboard_table = &clipboard_table;
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