Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 1 | /* Public Domain Curses */ |
| 2 | |
| 3 | #include "pdcx11.h" |
| 4 | |
| 5 | RCSID("$Id: pdcclip.c,v 1.35 2008/07/14 04:24:52 wmcbrine Exp $") |
| 6 | |
| 7 | #include <stdlib.h> |
| 8 | |
| 9 | /*man-start************************************************************** |
| 10 | |
| 11 | Name: clipboard |
| 12 | |
| 13 | Synopsis: |
| 14 | int PDC_getclipboard(char **contents, long *length); |
| 15 | int PDC_setclipboard(const char *contents, long length); |
| 16 | int PDC_freeclipboard(char *contents); |
| 17 | int PDC_clearclipboard(void); |
| 18 | |
| 19 | Description: |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 20 | PDC_getclipboard() gets the textual contents of the system's |
| 21 | clipboard. This function returns the contents of the clipboard |
| 22 | in the contents argument. It is the responsibilitiy of the |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 23 | caller to free the memory returned, via PDC_freeclipboard(). |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 24 | The length of the clipboard contents is returned in the length |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 25 | argument. |
| 26 | |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 27 | PDC_setclipboard copies the supplied text into the system's |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 28 | clipboard, emptying the clipboard prior to the copy. |
| 29 | |
| 30 | PDC_clearclipboard() clears the internal clipboard. |
| 31 | |
| 32 | Return Values: |
| 33 | indicator of success/failure of call. |
| 34 | PDC_CLIP_SUCCESS the call was successful |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 35 | PDC_CLIP_MEMORY_ERROR unable to allocate sufficient memory for |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 36 | the clipboard contents |
| 37 | PDC_CLIP_EMPTY the clipboard contains no text |
| 38 | PDC_CLIP_ACCESS_ERROR no clipboard support |
| 39 | |
| 40 | Portability X/Open BSD SYS V |
| 41 | PDC_getclipboard - - - |
| 42 | PDC_setclipboard - - - |
| 43 | PDC_freeclipboard - - - |
| 44 | PDC_clearclipboard - - - |
| 45 | |
| 46 | **man-end****************************************************************/ |
| 47 | |
| 48 | int PDC_getclipboard(char **contents, long *length) |
| 49 | { |
| 50 | #ifdef PDC_WIDE |
| 51 | wchar_t *wcontents; |
| 52 | #endif |
| 53 | int result = 0; |
| 54 | int len; |
| 55 | |
| 56 | PDC_LOG(("PDC_getclipboard() - called\n")); |
| 57 | |
| 58 | XCursesInstructAndWait(CURSES_GET_SELECTION); |
| 59 | |
| 60 | if (XC_read_socket(xc_display_sock, &result, sizeof(int)) < 0) |
| 61 | XCursesExitCursesProcess(5, "exiting from PDC_getclipboard"); |
| 62 | |
| 63 | if (result == PDC_CLIP_SUCCESS) |
| 64 | { |
| 65 | if (XC_read_socket(xc_display_sock, &len, sizeof(int)) < 0) |
| 66 | XCursesExitCursesProcess(5, "exiting from PDC_getclipboard"); |
| 67 | #ifdef PDC_WIDE |
| 68 | wcontents = malloc((len + 1) * sizeof(wchar_t)); |
| 69 | *contents = malloc(len * 3 + 1); |
| 70 | |
| 71 | if (!wcontents || !*contents) |
| 72 | #else |
| 73 | *contents = malloc(len + 1); |
| 74 | |
| 75 | if (!*contents) |
| 76 | #endif |
| 77 | XCursesExitCursesProcess(6, "exiting from PDC_getclipboard - " |
| 78 | "synchronization error"); |
| 79 | |
| 80 | if (len) |
| 81 | { |
| 82 | if (XC_read_socket(xc_display_sock, |
| 83 | #ifdef PDC_WIDE |
| 84 | wcontents, len * sizeof(wchar_t)) < 0) |
| 85 | #else |
| 86 | *contents, len) < 0) |
| 87 | #endif |
| 88 | XCursesExitCursesProcess(5, "exiting from PDC_getclipboard"); |
| 89 | } |
| 90 | |
| 91 | #ifdef PDC_WIDE |
| 92 | wcontents[len] = 0; |
| 93 | len = PDC_wcstombs(*contents, wcontents, len * 3); |
| 94 | free(wcontents); |
| 95 | #endif |
| 96 | (*contents)[len] = '\0'; |
| 97 | *length = len; |
| 98 | } |
| 99 | |
| 100 | return result; |
| 101 | } |
| 102 | |
| 103 | int PDC_setclipboard(const char *contents, long length) |
| 104 | { |
| 105 | #ifdef PDC_WIDE |
| 106 | wchar_t *wcontents; |
| 107 | #endif |
| 108 | int rc; |
| 109 | |
| 110 | PDC_LOG(("PDC_setclipboard() - called\n")); |
| 111 | |
| 112 | #ifdef PDC_WIDE |
| 113 | wcontents = malloc((length + 1) * sizeof(wchar_t)); |
| 114 | if (!wcontents) |
| 115 | return PDC_CLIP_MEMORY_ERROR; |
| 116 | |
| 117 | length = PDC_mbstowcs(wcontents, contents, length); |
| 118 | #endif |
| 119 | XCursesInstruct(CURSES_SET_SELECTION); |
| 120 | |
| 121 | /* Write, then wait for X to do its stuff; expect return code. */ |
| 122 | |
| 123 | if (XC_write_socket(xc_display_sock, &length, sizeof(long)) >= 0) |
| 124 | { |
| 125 | if (XC_write_socket(xc_display_sock, |
| 126 | #ifdef PDC_WIDE |
| 127 | wcontents, length * sizeof(wchar_t)) >= 0) |
| 128 | { |
| 129 | free(wcontents); |
| 130 | #else |
| 131 | contents, length) >= 0) |
| 132 | { |
| 133 | #endif |
| 134 | if (XC_read_socket(xc_display_sock, &rc, sizeof(int)) >= 0) |
| 135 | return rc; |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | XCursesExitCursesProcess(5, "exiting from PDC_setclipboard"); |
| 140 | |
| 141 | return PDC_CLIP_ACCESS_ERROR; /* not reached */ |
| 142 | } |
| 143 | |
| 144 | int PDC_freeclipboard(char *contents) |
| 145 | { |
| 146 | PDC_LOG(("PDC_freeclipboard() - called\n")); |
| 147 | |
| 148 | free(contents); |
| 149 | return PDC_CLIP_SUCCESS; |
| 150 | } |
| 151 | |
| 152 | int PDC_clearclipboard(void) |
| 153 | { |
| 154 | int rc; |
| 155 | long len = 0; |
| 156 | |
| 157 | PDC_LOG(("PDC_clearclipboard() - called\n")); |
| 158 | |
| 159 | XCursesInstruct(CURSES_CLEAR_SELECTION); |
| 160 | |
| 161 | /* Write, then wait for X to do its stuff; expect return code. */ |
| 162 | |
| 163 | if (XC_write_socket(xc_display_sock, &len, sizeof(long)) >= 0) |
| 164 | if (XC_read_socket(xc_display_sock, &rc, sizeof(int)) >= 0) |
| 165 | return rc; |
| 166 | |
| 167 | XCursesExitCursesProcess(5, "exiting from PDC_clearclipboard"); |
| 168 | |
| 169 | return PDC_CLIP_ACCESS_ERROR; /* not reached */ |
| 170 | } |