2 * uterm - Linux User-Space Terminal
4 * Copyright (c) 2011-2012 David Herrmann <dh.herrmann@googlemail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files
8 * (the "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
21 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 /* Internal definitions */
42 int (*init) (struct kbd_desc **out, const char *layout,
43 const char *variant, const char *options);
44 void (*ref) (struct kbd_desc *desc);
45 void (*unref) (struct kbd_desc *desc);
46 int (*alloc) (struct kbd_desc *desc, struct kbd_dev **out);
47 void (*keysym_to_string) (uint32_t keysym, char *str, size_t size);
48 int (*string_to_keysym) (const char *n, uint32_t *out);
52 void (*ref) (struct kbd_dev *dev);
53 void (*unref) (struct kbd_dev *dev);
54 void (*reset) (struct kbd_dev *dev, const unsigned long *ledbits);
55 int (*process) (struct kbd_dev *dev, uint16_t state, uint16_t code,
56 struct uterm_input_event *out);
67 static const bool plain_available = true;
68 extern const struct kbd_desc_ops plain_desc_ops;
69 extern const struct kbd_dev_ops plain_dev_ops;
71 extern int plain_string_to_keysym(const char *n, uint32_t *out);
73 #ifdef UTERM_HAVE_XKBCOMMON
76 struct xkb_context *ctx;
77 struct xkb_keymap *keymap;
81 struct xkb_state *state;
84 static const bool uxkb_available = true;
85 extern const struct kbd_desc_ops uxkb_desc_ops;
86 extern const struct kbd_dev_ops uxkb_dev_ops;
88 extern int uxkb_string_to_keysym(const char *n, uint32_t *out);
90 #else /* !UTERM_HAVE_XKBCOMMON */
100 static const bool uxkb_available = false;
101 static const struct kbd_desc_ops uxkb_desc_ops;
102 static const struct kbd_dev_ops uxkb_dev_ops;
104 #endif /* UTERM_HAVE_XKBCOMMON */
108 const struct kbd_desc_ops *ops;
111 struct plain_desc plain;
112 struct uxkb_desc uxkb;
118 struct kbd_desc *desc;
119 const struct kbd_dev_ops *ops;
122 struct plain_dev plain;
123 struct uxkb_dev uxkb;
132 static inline int kbd_desc_new(struct kbd_desc **out, const char *layout,
133 const char *variant, const char *options,
136 const struct kbd_desc_ops *ops;
140 if (!uxkb_available) {
141 log_error("XKB KBD backend not available");
144 ops = &uxkb_desc_ops;
147 if (!plain_available) {
148 log_error("plain KBD backend not available");
151 ops = &plain_desc_ops;
154 log_error("unknown KBD backend %u", mode);
158 return ops->init(out, layout, variant, options);
161 static inline void kbd_desc_ref(struct kbd_desc *desc)
166 return desc->ops->ref(desc);
169 static inline void kbd_desc_unref(struct kbd_desc *desc)
174 return desc->ops->unref(desc);
177 static inline int kbd_desc_alloc(struct kbd_desc *desc, struct kbd_dev **out)
182 return desc->ops->alloc(desc, out);
185 static inline void kbd_desc_keysym_to_string(struct kbd_desc *desc,
187 char *str, size_t size)
192 return desc->ops->keysym_to_string(keysym, str, size);
195 static inline int kbd_desc_string_to_keysym(struct kbd_desc *desc,
202 return desc->ops->string_to_keysym(n, out);
205 static inline void kbd_dev_ref(struct kbd_dev *dev)
210 return dev->ops->ref(dev);
213 static inline void kbd_dev_unref(struct kbd_dev *dev)
218 return dev->ops->unref(dev);
221 static inline void kbd_dev_reset(struct kbd_dev *dev,
222 const unsigned long *ledbits)
227 return dev->ops->reset(dev, ledbits);
230 static inline int kbd_dev_process(struct kbd_dev *dev,
233 struct uterm_input_event *out)
238 return dev->ops->process(dev, key_state, code, out);
241 static inline bool input_bit_is_set(const unsigned long *array, int bit)
243 return !!(array[bit / LONG_BIT] & (1LL << (bit % LONG_BIT)));
246 #endif /* UTERM_INPUT_H */