1 /* Haiku window system selection support.
2 Copyright (C) 2021 Free Software Foundation, Inc.
3
4 This file is part of GNU Emacs.
5
6 GNU Emacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or (at
9 your option) any later version.
10
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
18
19 #include <config.h>
20
21 #include "lisp.h"
22 #include "blockinput.h"
23 #include "coding.h"
24 #include "haikuselect.h"
25 #include "haikuterm.h"
26
27 static Lisp_Object
haiku_selection_data_1(Lisp_Object clipboard)28 haiku_selection_data_1 (Lisp_Object clipboard)
29 {
30 Lisp_Object result = Qnil;
31 char *targets[256];
32
33 block_input ();
34 if (EQ (clipboard, QPRIMARY))
35 BClipboard_primary_targets ((char **) &targets, 256);
36 else if (EQ (clipboard, QSECONDARY))
37 BClipboard_secondary_targets ((char **) &targets, 256);
38 else if (EQ (clipboard, QCLIPBOARD))
39 BClipboard_system_targets ((char **) &targets, 256);
40 else
41 {
42 unblock_input ();
43 signal_error ("Bad clipboard", clipboard);
44 }
45
46 for (int i = 0; targets[i]; ++i)
47 {
48 result = Fcons (build_unibyte_string (targets[i]),
49 result);
50 free (targets[i]);
51 }
52 unblock_input ();
53
54 return result;
55 }
56
57 DEFUN ("haiku-selection-targets", Fhaiku_selection_targets,
58 Shaiku_selection_targets, 1, 1, 0,
59 doc: /* Find the types of data available from CLIPBOARD.
60 CLIPBOARD should be the symbol `PRIMARY', `SECONDARY' or `CLIPBOARD'.
61 Return the available types as a list of strings. */)
62 (Lisp_Object clipboard)
63 {
64 return haiku_selection_data_1 (clipboard);
65 }
66
67 DEFUN ("haiku-selection-data", Fhaiku_selection_data, Shaiku_selection_data,
68 2, 2, 0,
69 doc: /* Retrieve content typed as NAME from the clipboard
70 CLIPBOARD. CLIPBOARD is the symbol `PRIMARY', `SECONDARY' or
71 `CLIPBOARD'. NAME is a MIME type denoting the type of the data to
72 fetch. */)
73 (Lisp_Object clipboard, Lisp_Object name)
74 {
75 CHECK_SYMBOL (clipboard);
76 CHECK_STRING (name);
77 char *dat;
78 ssize_t len;
79
80 block_input ();
81 if (EQ (clipboard, QPRIMARY))
82 dat = BClipboard_find_primary_selection_data (SSDATA (name), &len);
83 else if (EQ (clipboard, QSECONDARY))
84 dat = BClipboard_find_secondary_selection_data (SSDATA (name), &len);
85 else if (EQ (clipboard, QCLIPBOARD))
86 dat = BClipboard_find_system_data (SSDATA (name), &len);
87 else
88 {
89 unblock_input ();
90 signal_error ("Bad clipboard", clipboard);
91 }
92 unblock_input ();
93
94 if (!dat)
95 return Qnil;
96
97 Lisp_Object str = make_unibyte_string (dat, len);
98 Lisp_Object lispy_type = Qnil;
99
100 if (!strcmp (SSDATA (name), "text/utf-8") ||
101 !strcmp (SSDATA (name), "text/plain"))
102 {
103 if (string_ascii_p (str))
104 lispy_type = QSTRING;
105 else
106 lispy_type = QUTF8_STRING;
107 }
108
109 if (!NILP (lispy_type))
110 Fput_text_property (make_fixnum (0), make_fixnum (len),
111 Qforeign_selection, lispy_type, str);
112
113 block_input ();
114 BClipboard_free_data (dat);
115 unblock_input ();
116
117 return str;
118 }
119
120 DEFUN ("haiku-selection-put", Fhaiku_selection_put, Shaiku_selection_put,
121 3, 4, 0,
122 doc: /* Add or remove content from the clipboard CLIPBOARD.
123 CLIPBOARD is the symbol `PRIMARY', `SECONDARY' or `CLIPBOARD'. NAME
124 is a MIME type denoting the type of the data to add. DATA is the
125 string that will be placed in the clipboard, or nil if the content is
126 to be removed. If NAME is the string "text/utf-8" or the string
127 "text/plain", encode it as UTF-8 before storing it into the clipboard.
128 CLEAR, if non-nil, means to erase all the previous contents of the
129 clipboard. */)
130 (Lisp_Object clipboard, Lisp_Object name, Lisp_Object data,
131 Lisp_Object clear)
132 {
133 CHECK_SYMBOL (clipboard);
134 CHECK_STRING (name);
135 if (!NILP (data))
136 CHECK_STRING (data);
137
138 block_input ();
139 /* It seems that Haiku applications counter-intuitively expect
140 UTF-8 data in both text/utf-8 and text/plain. */
141 if (!NILP (data) && STRING_MULTIBYTE (data) &&
142 (!strcmp (SSDATA (name), "text/utf-8") ||
143 !strcmp (SSDATA (name), "text/plain")))
144 data = ENCODE_UTF_8 (data);
145
146 char *dat = !NILP (data) ? SSDATA (data) : NULL;
147 ptrdiff_t len = !NILP (data) ? SBYTES (data) : 0;
148
149 if (EQ (clipboard, QPRIMARY))
150 BClipboard_set_primary_selection_data (SSDATA (name), dat, len,
151 !NILP (clear));
152 else if (EQ (clipboard, QSECONDARY))
153 BClipboard_set_secondary_selection_data (SSDATA (name), dat, len,
154 !NILP (clear));
155 else if (EQ (clipboard, QCLIPBOARD))
156 BClipboard_set_system_data (SSDATA (name), dat, len, !NILP (clear));
157 else
158 {
159 unblock_input ();
160 signal_error ("Bad clipboard", clipboard);
161 }
162 unblock_input ();
163
164 return Qnil;
165 }
166
167 void
syms_of_haikuselect(void)168 syms_of_haikuselect (void)
169 {
170 DEFSYM (QSECONDARY, "SECONDARY");
171 DEFSYM (QCLIPBOARD, "CLIPBOARD");
172 DEFSYM (QSTRING, "STRING");
173 DEFSYM (QUTF8_STRING, "UTF8_STRING");
174 DEFSYM (Qforeign_selection, "foreign-selection");
175 DEFSYM (QTARGETS, "TARGETS");
176
177 defsubr (&Shaiku_selection_data);
178 defsubr (&Shaiku_selection_put);
179 defsubr (&Shaiku_selection_targets);
180 }
181