Annotation of src/usr.bin/tmux/window-buffer.c, Revision 1.3
1.3 ! nicm 1: /* $OpenBSD: window-buffer.c,v 1.2 2017/05/31 15:26:41 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
21: #include <stdlib.h>
22: #include <string.h>
1.2 nicm 23: #include <time.h>
1.1 nicm 24: #include <vis.h>
25:
26: #include "tmux.h"
27:
28: static struct screen *window_buffer_init(struct window_pane *,
29: struct cmd_find_state *, struct args *);
30: static void window_buffer_free(struct window_pane *);
31: static void window_buffer_resize(struct window_pane *, u_int,
32: u_int);
33: static void window_buffer_key(struct window_pane *,
34: struct client *, struct session *, key_code,
35: struct mouse_event *);
36:
37: #define WINDOW_BUFFER_DEFAULT_COMMAND "paste-buffer -b '%%'"
38:
39: const struct window_mode window_buffer_mode = {
40: .name = "buffer-mode",
41:
42: .init = window_buffer_init,
43: .free = window_buffer_free,
44: .resize = window_buffer_resize,
45: .key = window_buffer_key,
46: };
47:
48: enum window_buffer_sort_type {
49: WINDOW_BUFFER_BY_NAME,
50: WINDOW_BUFFER_BY_TIME,
51: WINDOW_BUFFER_BY_SIZE,
52: };
53: static const char *window_buffer_sort_list[] = {
54: "name",
55: "time",
56: "size"
57: };
58:
59: struct window_buffer_itemdata {
60: const char *name;
61: time_t created;
62: u_int order;
63: size_t size;
64: };
65:
66: struct window_buffer_modedata {
67: struct mode_tree_data *data;
68: char *command;
69:
70: struct window_buffer_itemdata **item_list;
71: u_int item_size;
72: };
73:
74: static struct window_buffer_itemdata *
75: window_buffer_add_item(struct window_buffer_modedata *data)
76: {
77: struct window_buffer_itemdata *item;
78:
79: data->item_list = xreallocarray(data->item_list, data->item_size + 1,
80: sizeof *data->item_list);
81: item = data->item_list[data->item_size++] = xcalloc(1, sizeof *item);
82: return (item);
83: }
84:
85: static void
86: window_buffer_free_item(struct window_buffer_itemdata *item)
87: {
88: free((void *)item->name);
89: free(item);
90: }
91:
92: static int
93: window_buffer_cmp_name(const void *a0, const void *b0)
94: {
95: const struct window_buffer_itemdata *const *a = a0;
96: const struct window_buffer_itemdata *const *b = b0;
97:
98: return (strcmp((*a)->name, (*b)->name));
99: }
100:
101: static int
102: window_buffer_cmp_time(const void *a0, const void *b0)
103: {
104: const struct window_buffer_itemdata *const *a = a0;
105: const struct window_buffer_itemdata *const *b = b0;
106:
107: if ((*a)->order > (*b)->order)
108: return (-1);
109: if ((*a)->order < (*b)->order)
110: return (1);
111: return (strcmp((*a)->name, (*b)->name));
112: }
113:
114: static int
115: window_buffer_cmp_size(const void *a0, const void *b0)
116: {
117: const struct window_buffer_itemdata *const *a = a0;
118: const struct window_buffer_itemdata *const *b = b0;
119:
120: if ((*a)->size > (*b)->size)
121: return (-1);
122: if ((*a)->size < (*b)->size)
123: return (1);
124: return (strcmp((*a)->name, (*b)->name));
125: }
126:
127: static void
128: window_buffer_build(void *modedata, u_int sort_type, __unused uint64_t *tag)
129: {
130: struct window_buffer_modedata *data = modedata;
131: struct window_buffer_itemdata *item;
132: u_int i;
133: struct paste_buffer *pb;
134: char *tim;
135: char *text;
136:
137: for (i = 0; i < data->item_size; i++)
138: window_buffer_free_item(data->item_list[i]);
139: free(data->item_list);
140: data->item_list = NULL;
141: data->item_size = 0;
142:
143: pb = NULL;
144: while ((pb = paste_walk(pb)) != NULL) {
145: item = window_buffer_add_item(data);
146: item->name = xstrdup(paste_buffer_name(pb));
147: item->created = paste_buffer_created(pb);
148: paste_buffer_data(pb, &item->size);
149: item->order = paste_buffer_order(pb);
150: }
151:
152: switch (sort_type) {
153: case WINDOW_BUFFER_BY_NAME:
154: qsort(data->item_list, data->item_size, sizeof *data->item_list,
155: window_buffer_cmp_name);
156: break;
157: case WINDOW_BUFFER_BY_TIME:
158: qsort(data->item_list, data->item_size, sizeof *data->item_list,
159: window_buffer_cmp_time);
160: break;
161: case WINDOW_BUFFER_BY_SIZE:
162: qsort(data->item_list, data->item_size, sizeof *data->item_list,
163: window_buffer_cmp_size);
164: break;
165: }
166:
167: for (i = 0; i < data->item_size; i++) {
168: item = data->item_list[i];
169:
170: tim = ctime(&item->created);
171: *strchr(tim, '\n') = '\0';
172:
173: xasprintf(&text, "%zu bytes (%s)", item->size, tim);
174: mode_tree_add(data->data, NULL, item, item->order, item->name,
175: text, -1);
176: free(text);
177: }
178:
179: }
180:
181: static struct screen *
182: window_buffer_draw(__unused void *modedata, void *itemdata, u_int sx, u_int sy)
183: {
184: struct window_buffer_itemdata *item = itemdata;
185: struct paste_buffer *pb;
186: static struct screen s;
187: struct screen_write_ctx ctx;
188: char line[1024];
189: const char *pdata, *end, *cp;
190: size_t psize, at;
191: u_int i;
192:
193: pb = paste_get_name(item->name);
194: if (pb == NULL)
195: return (NULL);
196:
197: screen_init(&s, sx, sy, 0);
198:
199: screen_write_start(&ctx, NULL, &s);
200: screen_write_clearscreen(&ctx, 8);
201:
1.3 ! nicm 202: pdata = end = paste_buffer_data(pb, &psize);
1.1 nicm 203: for (i = 0; i < sy; i++) {
204: at = 0;
205: while (end != pdata + psize && *end != '\n') {
206: if ((sizeof line) - at > 5) {
207: cp = vis(line + at, *end, VIS_TAB|VIS_OCTAL, 0);
208: at = cp - line;
209: }
210: end++;
211: }
212: if (at > sx)
213: at = sx;
214: line[at] = '\0';
215:
216: if (*line != '\0') {
217: screen_write_cursormove(&ctx, 0, i);
218: screen_write_puts(&ctx, &grid_default_cell, "%s", line);
219: }
220:
221: if (end == pdata + psize)
222: break;
223: end++;
224: }
225:
226: screen_write_stop(&ctx);
227: return (&s);
228: }
229:
230: static struct screen *
231: window_buffer_init(struct window_pane *wp, __unused struct cmd_find_state *fs,
232: struct args *args)
233: {
234: struct window_buffer_modedata *data;
235: struct screen *s;
236:
237: wp->modedata = data = xcalloc(1, sizeof *data);
238:
239: if (args == NULL || args->argc == 0)
240: data->command = xstrdup(WINDOW_BUFFER_DEFAULT_COMMAND);
241: else
242: data->command = xstrdup(args->argv[0]);
243:
244: data->data = mode_tree_start(wp, window_buffer_build,
245: window_buffer_draw, data, window_buffer_sort_list,
246: nitems(window_buffer_sort_list), &s);
247:
248: mode_tree_build(data->data);
249: mode_tree_draw(data->data);
250:
251: return (s);
252: }
253:
254: static void
255: window_buffer_free(struct window_pane *wp)
256: {
257: struct window_buffer_modedata *data = wp->modedata;
258: u_int i;
259:
260: if (data == NULL)
261: return;
262:
263: mode_tree_free(data->data);
264:
265: for (i = 0; i < data->item_size; i++)
266: window_buffer_free_item(data->item_list[i]);
267: free(data->item_list);
268:
269: free(data->command);
270: free(data);
271: }
272:
273: static void
274: window_buffer_resize(struct window_pane *wp, u_int sx, u_int sy)
275: {
276: struct window_buffer_modedata *data = wp->modedata;
277:
278: mode_tree_resize(data->data, sx, sy);
279: }
280:
281: static void
282: window_buffer_do_delete(void* modedata, void *itemdata, __unused key_code key)
283: {
284: struct window_buffer_modedata *data = modedata;
285: struct window_buffer_itemdata *item = itemdata;
286: struct paste_buffer *pb;
287:
288: if (item == mode_tree_get_current(data->data))
289: mode_tree_down(data->data, 0);
290: if ((pb = paste_get_name(item->name)) != NULL)
291: paste_free(pb);
292: }
293:
294: static void
295: window_buffer_key(struct window_pane *wp, struct client *c,
296: __unused struct session *s, key_code key, struct mouse_event *m)
297: {
298: struct window_buffer_modedata *data = wp->modedata;
299: struct window_buffer_itemdata *item;
300: char *command, *name;
301: int finished;
302:
303: /*
304: * t = toggle tag
305: * T = tag none
306: * C-t = tag all
307: * q = exit
308: * O = change sort order
309: *
310: * d = delete buffer
311: * D = delete tagged buffers
312: * Enter = paste buffer
313: */
314:
315: finished = mode_tree_key(data->data, &key, m);
316: switch (key) {
317: case 'd':
318: item = mode_tree_get_current(data->data);
319: window_buffer_do_delete(data, item, key);
320: mode_tree_build(data->data);
321: break;
322: case 'D':
323: mode_tree_each_tagged(data->data, window_buffer_do_delete, key,
324: 0);
325: mode_tree_build(data->data);
326: break;
327: case '\r':
328: item = mode_tree_get_current(data->data);
329: command = xstrdup(data->command);
330: name = xstrdup(item->name);
331: window_pane_reset_mode(wp);
332: mode_tree_run_command(c, NULL, command, name);
333: free(name);
334: free(command);
335: return;
336: }
337: if (finished || paste_get_top(NULL) == NULL)
338: window_pane_reset_mode(wp);
339: else {
340: mode_tree_draw(data->data);
341: wp->flags |= PANE_REDRAW;
342: }
343: }
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