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feat(ptk): add Windows implemention for clipboard
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5 files changed

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‎lib/ptk/src/clipboard.c‎

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Original file line numberDiff line numberDiff line change
@@ -14,6 +14,9 @@
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#include <string.h>
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#include "ptk/app.h"
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#include "linux/x11clipboard.h"
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#ifdef PTK_WIN_DESKTOP
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#include "windows/win32clipboard.h"
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#endif
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static struct ptk_clipboard_module {
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char *text;
@@ -26,6 +29,11 @@ int ptk_clipboard_request_text(ptk_clipboard_callback_t callback, void *arg)
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if (ptk_get_app_id() == PTK_APP_ID_LINUX_X11) {
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return ptk_x11clipboard_request_text(callback, arg);
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}
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#endif
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#ifdef PTK_WIN_DESKTOP
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if (ptk_get_app_id() == PTK_APP_ID_WIN_DESKTOP) {
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return ptk_win32clipboard_request_text(callback, arg);
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}
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#endif
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size_t len = ptk_clipboard.text_len + 1;
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wchar_t *wstr = malloc(sizeof(wchar_t) * len);
@@ -52,6 +60,11 @@ int ptk_clipboard_set_text(const wchar_t *text, size_t len)
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if (ptk_get_app_id() == PTK_APP_ID_LINUX_X11) {
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return ptk_x11clipboard_set_text(text, len);
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}
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#endif
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#ifdef PTK_WIN_DESKTOP
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if (ptk_get_app_id() == PTK_APP_ID_WIN_DESKTOP) {
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return ptk_win32clipboard_set_text(text, len);
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}
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#endif
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size_t raw_len = encode_utf8(NULL, text, 0);
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char *raw_text = malloc((raw_len + 1) * sizeof(char));
@@ -74,6 +87,12 @@ void ptk_clipboard_init(void)
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return;
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}
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#endif
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#ifdef PTK_WIN_DESKTOP
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if (ptk_get_app_id() == PTK_APP_ID_WIN_DESKTOP) {
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ptk_win32clipboard_init();
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return;
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}
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#endif
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}
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void ptk_clipboard_destroy(void)
@@ -83,6 +102,12 @@ void ptk_clipboard_destroy(void)
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ptk_x11clipboard_destroy();
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return;
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}
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#endif
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#ifdef PTK_WIN_DESKTOP
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if (ptk_get_app_id() == PTK_APP_ID_WIN_DESKTOP) {
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ptk_win32clipboard_destroy();
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return;
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}
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#endif
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if (ptk_clipboard.text) {
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free(ptk_clipboard.text);

‎lib/ptk/src/windows/win32_app.c‎ renamed to ‎lib/ptk/src/windows/win32app.c‎

File renamed without changes.

‎lib/ptk/src/windows/win32clipboard.c‎

Lines changed: 208 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,208 @@
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/*
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* lib/ptk/src/windows/win32clipboard.c: clipboard support for Windows
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*
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* Copyright (c) 2025, Liu Chao <[email protected]> All rights reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* This file is part of LCUI, distributed under the MIT License found in the
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* LICENSE.TXT file in the root directory of this source tree.
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*/
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/*
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* References:
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* - https://docs.microsoft.com/en-us/windows/win32/dataxchg/using-the-clipboard
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* - https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-openclipboard
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* - https://github.com/libsdl-org/SDL/blob/main/src/video/windows/SDL_windowsclipboard.c
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*/
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#include <yutil.h>
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#include "ptk/app.h"
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#ifdef PTK_WIN_DESKTOP
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#include <windows.h>
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#include <stdlib.h>
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#include <string.h>
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#include "win32clipboard.h"
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static struct ptk_win32clipboard_module {
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char *text;
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size_t text_len;
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HWND hwnd; // Window handle for clipboard operations
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} ptk_win32clipboard;
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int ptk_win32clipboard_request_text(ptk_clipboard_callback_t callback, void *arg)
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{
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ptk_clipboard_t clipboard = { 0 };
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wchar_t *clipboard_text = NULL;
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size_t len = 0;
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// Open the clipboard
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if (!OpenClipboard(ptk_win32clipboard.hwnd)) {
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logger_warning("Failed to open clipboard\n");
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// Return empty clipboard data
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clipboard.text = calloc(1, sizeof(wchar_t));
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clipboard.len = 0;
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clipboard.image = NULL;
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callback(&clipboard, arg);
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free(clipboard.text);
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return -1;
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}
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// Get clipboard data handle
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HANDLE hData = GetClipboardData(CF_UNICODETEXT);
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if (hData == NULL) {
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// No Unicode text available, try ANSI text
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hData = GetClipboardData(CF_TEXT);
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if (hData != NULL) {
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// Convert ANSI to Unicode
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char *ansi_text = (char *)GlobalLock(hData);
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if (ansi_text != NULL) {
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int wlen = MultiByteToWideChar(CP_ACP, 0, ansi_text, -1, NULL, 0);
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if (wlen > 0) {
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clipboard_text = malloc(wlen * sizeof(wchar_t));
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if (clipboard_text != NULL) {
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MultiByteToWideChar(CP_ACP, 0, ansi_text, -1, clipboard_text, wlen);
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len = wlen - 1; // Exclude null terminator
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}
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}
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GlobalUnlock(hData);
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}
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}
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} else {
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// Unicode text available
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wchar_t *unicode_text = (wchar_t *)GlobalLock(hData);
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if (unicode_text != NULL) {
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len = wcslen(unicode_text);
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clipboard_text = malloc((len + 1) * sizeof(wchar_t));
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if (clipboard_text != NULL) {
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wcscpy(clipboard_text, unicode_text);
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}
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GlobalUnlock(hData);
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}
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}
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CloseClipboard();
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// Prepare clipboard data
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if (clipboard_text == NULL) {
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clipboard_text = calloc(1, sizeof(wchar_t));
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len = 0;
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}
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clipboard.text = clipboard_text;
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clipboard.len = len;
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clipboard.image = NULL;
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callback(&clipboard, arg);
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free(clipboard_text);
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return 0;
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}
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int ptk_win32clipboard_set_text(const wchar_t *text, size_t len)
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{
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HGLOBAL hMem;
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wchar_t *pMem;
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size_t size;
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if (!text || len == 0) {
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return -1;
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}
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// Open the clipboard
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if (!OpenClipboard(ptk_win32clipboard.hwnd)) {
116+
logger_warning("Failed to open clipboard for writing\n");
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return -1;
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}
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// Empty the clipboard
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if (!EmptyClipboard()) {
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logger_warning("Failed to empty clipboard\n");
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CloseClipboard();
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return -1;
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}
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// Allocate global memory for the text
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size = (len + 1) * sizeof(wchar_t);
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hMem = GlobalAlloc(GMEM_MOVEABLE, size);
130+
if (hMem == NULL) {
131+
logger_warning("Failed to allocate memory for clipboard text\n");
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CloseClipboard();
133+
return -1;
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}
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// Lock the memory and copy the text
137+
pMem = (wchar_t *)GlobalLock(hMem);
138+
if (pMem == NULL) {
139+
logger_warning("Failed to lock clipboard memory\n");
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GlobalFree(hMem);
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CloseClipboard();
142+
return -1;
143+
}
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wcsncpy(pMem, text, len);
146+
pMem[len] = L'\0';
147+
GlobalUnlock(hMem);
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// Set the clipboard data
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if (SetClipboardData(CF_UNICODETEXT, hMem) == NULL) {
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logger_warning("Failed to set clipboard data\n");
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GlobalFree(hMem);
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CloseClipboard();
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return -1;
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}
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CloseClipboard();
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// Update internal text buffer for fallback
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size_t utf8_len = encode_utf8(NULL, text, 0);
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char *utf8_text = malloc((utf8_len + 1) * sizeof(char));
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if (utf8_text != NULL) {
163+
utf8_len = encode_utf8(utf8_text, text, utf8_len);
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utf8_text[utf8_len] = '\0';
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166+
if (ptk_win32clipboard.text) {
167+
free(ptk_win32clipboard.text);
168+
}
169+
ptk_win32clipboard.text = utf8_text;
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ptk_win32clipboard.text_len = utf8_len;
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}
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return 0;
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}
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void ptk_win32clipboard_init(void)
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{
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ptk_win32clipboard.text = NULL;
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ptk_win32clipboard.text_len = 0;
180+
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// Get the main window handle for clipboard operations
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// This should be set by the main application window
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ptk_win32clipboard.hwnd = GetActiveWindow();
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if (ptk_win32clipboard.hwnd == NULL) {
185+
ptk_win32clipboard.hwnd = GetDesktopWindow();
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}
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logger_debug("Win32 clipboard initialized with HWND: %p\n", ptk_win32clipboard.hwnd);
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}
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void ptk_win32clipboard_destroy(void)
192+
{
193+
if (ptk_win32clipboard.text) {
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free(ptk_win32clipboard.text);
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ptk_win32clipboard.text = NULL;
196+
}
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ptk_win32clipboard.text_len = 0;
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ptk_win32clipboard.hwnd = NULL;
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}
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// Function to set the window handle for clipboard operations
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// This should be called by the main application window
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void ptk_win32clipboard_set_window(HWND hwnd)
204+
{
205+
ptk_win32clipboard.hwnd = hwnd;
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}
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#endif // PTK_WIN_DESKTOP

‎lib/ptk/src/windows/win32clipboard.h‎

Lines changed: 28 additions & 0 deletions
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@@ -0,0 +1,28 @@
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/*
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* lib/ptk/src/windows/win32clipboard.h
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*
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* Copyright (c) 2025, Liu Chao <[email protected]> All rights reserved.
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*
6+
* SPDX-License-Identifier: MIT
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*
8+
* This file is part of LCUI, distributed under the MIT License found in the
9+
* LICENSE.TXT file in the root directory of this source tree.
10+
*/
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12+
#ifndef PTK_WIN32CLIPBOARD_H
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#define PTK_WIN32CLIPBOARD_H
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15+
#include "ptk/clipboard.h"
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#ifdef PTK_WIN_DESKTOP
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#include <windows.h>
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int ptk_win32clipboard_request_text(ptk_clipboard_callback_t callback, void *arg);
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int ptk_win32clipboard_set_text(const wchar_t *text, size_t len);
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void ptk_win32clipboard_init(void);
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void ptk_win32clipboard_destroy(void);
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void ptk_win32clipboard_set_window(HWND hwnd);
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#endif
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28+
#endif

‎lib/ptk/src/windows/win32_ime.c‎ renamed to ‎lib/ptk/src/windows/win32ime.c‎

File renamed without changes.

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