1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <errno.h>
18 #include <fcntl.h>
19 #include <stdarg.h>
20 #include <stdlib.h>
21 #include <string.h>
22 #include <sys/stat.h>
23 #include <sys/time.h>
24 #include <sys/types.h>
25 #include <time.h>
26 #include <unistd.h>
27
28 #include <vector>
29
30 #include "common.h"
31 #include "device.h"
32 #include "wear_ui.h"
33 #include "cutils/properties.h"
34 #include "android-base/strings.h"
35 #include "android-base/stringprintf.h"
36
37 // There's only (at most) one of these objects, and global callbacks
38 // (for pthread_create, and the input event system) need to find it,
39 // so use a global variable.
40 static WearRecoveryUI* self = NULL;
41
42 // Return the current time as a double (including fractions of a second).
now()43 static double now() {
44 struct timeval tv;
45 gettimeofday(&tv, NULL);
46 return tv.tv_sec + tv.tv_usec / 1000000.0;
47 }
48
WearRecoveryUI()49 WearRecoveryUI::WearRecoveryUI() :
50 progress_bar_height(3),
51 progress_bar_width(200),
52 progress_bar_y(259),
53 outer_height(0),
54 outer_width(0),
55 menu_unusable_rows(0),
56 intro_frames(22),
57 loop_frames(60),
58 animation_fps(30),
59 currentIcon(NONE),
60 intro_done(false),
61 current_frame(0),
62 progressBarType(EMPTY),
63 progressScopeStart(0),
64 progressScopeSize(0),
65 progress(0),
66 text_cols(0),
67 text_rows(0),
68 text_col(0),
69 text_row(0),
70 text_top(0),
71 show_text(false),
72 show_text_ever(false),
73 show_menu(false),
74 menu_items(0),
75 menu_sel(0) {
76
77 for (size_t i = 0; i < 5; i++)
78 backgroundIcon[i] = NULL;
79
80 self = this;
81 }
82
83 // Draw background frame on the screen. Does not flip pages.
84 // Should only be called with updateMutex locked.
draw_background_locked(Icon icon)85 void WearRecoveryUI::draw_background_locked(Icon icon)
86 {
87 gr_color(0, 0, 0, 255);
88 gr_fill(0, 0, gr_fb_width(), gr_fb_height());
89
90 if (icon) {
91 GRSurface* surface;
92 if (icon == INSTALLING_UPDATE || icon == ERASING) {
93 if (!intro_done) {
94 surface = introFrames[current_frame];
95 } else {
96 surface = loopFrames[current_frame];
97 }
98 }
99 else {
100 surface = backgroundIcon[icon];
101 }
102
103 int width = gr_get_width(surface);
104 int height = gr_get_height(surface);
105
106 int x = (gr_fb_width() - width) / 2;
107 int y = (gr_fb_height() - height) / 2;
108
109 gr_blit(surface, 0, 0, width, height, x, y);
110 }
111 }
112
113 // Draw the progress bar (if any) on the screen. Does not flip pages.
114 // Should only be called with updateMutex locked.
draw_progress_locked()115 void WearRecoveryUI::draw_progress_locked()
116 {
117 if (currentIcon == ERROR) return;
118 if (progressBarType != DETERMINATE) return;
119
120 int width = progress_bar_width;
121 int height = progress_bar_height;
122 int dx = (gr_fb_width() - width)/2;
123 int dy = progress_bar_y;
124
125 float p = progressScopeStart + progress * progressScopeSize;
126 int pos = (int) (p * width);
127
128 gr_color(0x43, 0x43, 0x43, 0xff);
129 gr_fill(dx, dy, dx + width, dy + height);
130
131 if (pos > 0) {
132 gr_color(0x02, 0xa8, 0xf3, 255);
133 if (rtl_locale) {
134 // Fill the progress bar from right to left.
135 gr_fill(dx + width - pos, dy, dx + width, dy + height);
136 } else {
137 // Fill the progress bar from left to right.
138 gr_fill(dx, dy, dx + pos, dy + height);
139 }
140 }
141 }
142
143 static const char* HEADERS[] = {
144 "Swipe up/down to move.",
145 "Swipe left/right to select.",
146 "",
147 NULL
148 };
149
draw_screen_locked()150 void WearRecoveryUI::draw_screen_locked()
151 {
152 draw_background_locked(currentIcon);
153 draw_progress_locked();
154 char cur_selection_str[50];
155
156 if (show_text) {
157 SetColor(TEXT_FILL);
158 gr_fill(0, 0, gr_fb_width(), gr_fb_height());
159
160 int y = outer_height;
161 int x = outer_width;
162 if (show_menu) {
163 char recovery_fingerprint[PROPERTY_VALUE_MAX];
164 property_get("ro.bootimage.build.fingerprint", recovery_fingerprint, "");
165 SetColor(HEADER);
166 DrawTextLine(x + 4, &y, "Android Recovery", true);
167 for (auto& chunk: android::base::Split(recovery_fingerprint, ":")) {
168 DrawTextLine(x +4, &y, chunk.c_str(), false);
169 }
170
171 // This is actually the help strings.
172 DrawTextLines(x + 4, &y, HEADERS);
173 SetColor(HEADER);
174 DrawTextLines(x + 4, &y, menu_headers_);
175
176 // Show the current menu item number in relation to total number if
177 // items don't fit on the screen.
178 if (menu_items > menu_end - menu_start) {
179 sprintf(cur_selection_str, "Current item: %d/%d", menu_sel + 1, menu_items);
180 gr_text(x+4, y, cur_selection_str, 1);
181 y += char_height_+4;
182 }
183
184 // Menu begins here
185 SetColor(MENU);
186
187 for (int i = menu_start; i < menu_end; ++i) {
188
189 if (i == menu_sel) {
190 // draw the highlight bar
191 SetColor(MENU_SEL_BG);
192 gr_fill(x, y-2, gr_fb_width()-x, y+char_height_+2);
193 // white text of selected item
194 SetColor(MENU_SEL_FG);
195 if (menu[i][0]) gr_text(x+4, y, menu[i], 1);
196 SetColor(MENU);
197 } else {
198 if (menu[i][0]) gr_text(x+4, y, menu[i], 0);
199 }
200 y += char_height_+4;
201 }
202 SetColor(MENU);
203 y += 4;
204 gr_fill(0, y, gr_fb_width(), y+2);
205 y += 4;
206 }
207
208 SetColor(LOG);
209
210 // display from the bottom up, until we hit the top of the
211 // screen, the bottom of the menu, or we've displayed the
212 // entire text buffer.
213 int ty;
214 int row = (text_top+text_rows-1) % text_rows;
215 size_t count = 0;
216 for (int ty = gr_fb_height() - char_height_ - outer_height;
217 ty > y+2 && count < text_rows;
218 ty -= char_height_, ++count) {
219 gr_text(x+4, ty, text[row], 0);
220 --row;
221 if (row < 0) row = text_rows-1;
222 }
223 }
224 }
225
update_screen_locked()226 void WearRecoveryUI::update_screen_locked()
227 {
228 draw_screen_locked();
229 gr_flip();
230 }
231
232 // Keeps the progress bar updated, even when the process is otherwise busy.
progress_thread(void * cookie)233 void* WearRecoveryUI::progress_thread(void *cookie) {
234 self->progress_loop();
235 return NULL;
236 }
237
progress_loop()238 void WearRecoveryUI::progress_loop() {
239 double interval = 1.0 / animation_fps;
240 for (;;) {
241 double start = now();
242 pthread_mutex_lock(&updateMutex);
243 int redraw = 0;
244
245 if ((currentIcon == INSTALLING_UPDATE || currentIcon == ERASING)
246 && !show_text) {
247 if (!intro_done) {
248 if (current_frame >= intro_frames - 1) {
249 intro_done = true;
250 current_frame = 0;
251 } else {
252 current_frame++;
253 }
254 } else {
255 current_frame = (current_frame + 1) % loop_frames;
256 }
257 redraw = 1;
258 }
259
260 // move the progress bar forward on timed intervals, if configured
261 int duration = progressScopeDuration;
262 if (progressBarType == DETERMINATE && duration > 0) {
263 double elapsed = now() - progressScopeTime;
264 float p = 1.0 * elapsed / duration;
265 if (p > 1.0) p = 1.0;
266 if (p > progress) {
267 progress = p;
268 redraw = 1;
269 }
270 }
271
272 if (redraw)
273 update_screen_locked();
274
275 pthread_mutex_unlock(&updateMutex);
276 double end = now();
277 // minimum of 20ms delay between frames
278 double delay = interval - (end-start);
279 if (delay < 0.02) delay = 0.02;
280 usleep((long)(delay * 1000000));
281 }
282 }
283
Init()284 void WearRecoveryUI::Init()
285 {
286 gr_init();
287
288 gr_font_size(&char_width_, &char_height_);
289
290 text_col = text_row = 0;
291 text_rows = (gr_fb_height()) / char_height_;
292 visible_text_rows = (gr_fb_height() - (outer_height * 2)) / char_height_;
293 if (text_rows > kMaxRows) text_rows = kMaxRows;
294 text_top = 1;
295
296 text_cols = (gr_fb_width() - (outer_width * 2)) / char_width_;
297 if (text_cols > kMaxCols - 1) text_cols = kMaxCols - 1;
298
299 LoadBitmap("icon_installing", &backgroundIcon[INSTALLING_UPDATE]);
300 backgroundIcon[ERASING] = backgroundIcon[INSTALLING_UPDATE];
301 LoadBitmap("icon_error", &backgroundIcon[ERROR]);
302 backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR];
303
304 introFrames = (GRSurface**)malloc(intro_frames * sizeof(GRSurface*));
305 for (int i = 0; i < intro_frames; ++i) {
306 char filename[40];
307 sprintf(filename, "intro%02d", i);
308 LoadBitmap(filename, introFrames + i);
309 }
310
311 loopFrames = (GRSurface**)malloc(loop_frames * sizeof(GRSurface*));
312 for (int i = 0; i < loop_frames; ++i) {
313 char filename[40];
314 sprintf(filename, "loop%02d", i);
315 LoadBitmap(filename, loopFrames + i);
316 }
317
318 pthread_create(&progress_t, NULL, progress_thread, NULL);
319 RecoveryUI::Init();
320 }
321
SetBackground(Icon icon)322 void WearRecoveryUI::SetBackground(Icon icon)
323 {
324 pthread_mutex_lock(&updateMutex);
325 currentIcon = icon;
326 update_screen_locked();
327 pthread_mutex_unlock(&updateMutex);
328 }
329
SetProgressType(ProgressType type)330 void WearRecoveryUI::SetProgressType(ProgressType type)
331 {
332 pthread_mutex_lock(&updateMutex);
333 if (progressBarType != type) {
334 progressBarType = type;
335 }
336 progressScopeStart = 0;
337 progressScopeSize = 0;
338 progress = 0;
339 update_screen_locked();
340 pthread_mutex_unlock(&updateMutex);
341 }
342
ShowProgress(float portion,float seconds)343 void WearRecoveryUI::ShowProgress(float portion, float seconds)
344 {
345 pthread_mutex_lock(&updateMutex);
346 progressBarType = DETERMINATE;
347 progressScopeStart += progressScopeSize;
348 progressScopeSize = portion;
349 progressScopeTime = now();
350 progressScopeDuration = seconds;
351 progress = 0;
352 update_screen_locked();
353 pthread_mutex_unlock(&updateMutex);
354 }
355
SetProgress(float fraction)356 void WearRecoveryUI::SetProgress(float fraction)
357 {
358 pthread_mutex_lock(&updateMutex);
359 if (fraction < 0.0) fraction = 0.0;
360 if (fraction > 1.0) fraction = 1.0;
361 if (progressBarType == DETERMINATE && fraction > progress) {
362 // Skip updates that aren't visibly different.
363 int width = progress_bar_width;
364 float scale = width * progressScopeSize;
365 if ((int) (progress * scale) != (int) (fraction * scale)) {
366 progress = fraction;
367 update_screen_locked();
368 }
369 }
370 pthread_mutex_unlock(&updateMutex);
371 }
372
SetStage(int current,int max)373 void WearRecoveryUI::SetStage(int current, int max)
374 {
375 }
376
Print(const char * fmt,...)377 void WearRecoveryUI::Print(const char *fmt, ...)
378 {
379 char buf[256];
380 va_list ap;
381 va_start(ap, fmt);
382 vsnprintf(buf, 256, fmt, ap);
383 va_end(ap);
384
385 fputs(buf, stdout);
386
387 // This can get called before ui_init(), so be careful.
388 pthread_mutex_lock(&updateMutex);
389 if (text_rows > 0 && text_cols > 0) {
390 char *ptr;
391 for (ptr = buf; *ptr != '\0'; ++ptr) {
392 if (*ptr == '\n' || text_col >= text_cols) {
393 text[text_row][text_col] = '\0';
394 text_col = 0;
395 text_row = (text_row + 1) % text_rows;
396 if (text_row == text_top) text_top = (text_top + 1) % text_rows;
397 }
398 if (*ptr != '\n') text[text_row][text_col++] = *ptr;
399 }
400 text[text_row][text_col] = '\0';
401 update_screen_locked();
402 }
403 pthread_mutex_unlock(&updateMutex);
404 }
405
StartMenu(const char * const * headers,const char * const * items,int initial_selection)406 void WearRecoveryUI::StartMenu(const char* const * headers, const char* const * items,
407 int initial_selection) {
408 pthread_mutex_lock(&updateMutex);
409 if (text_rows > 0 && text_cols > 0) {
410 menu_headers_ = headers;
411 size_t i = 0;
412 // "i < text_rows" is removed from the loop termination condition,
413 // which is different from the one in ScreenRecoveryUI::StartMenu().
414 // Because WearRecoveryUI supports scrollable menu, it's fine to have
415 // more entries than text_rows. The menu may be truncated otherwise.
416 // Bug: 23752519
417 for (; items[i] != nullptr; i++) {
418 strncpy(menu[i], items[i], text_cols - 1);
419 menu[i][text_cols - 1] = '\0';
420 }
421 menu_items = i;
422 show_menu = 1;
423 menu_sel = initial_selection;
424 menu_start = 0;
425 menu_end = visible_text_rows - 1 - menu_unusable_rows;
426 if (menu_items <= menu_end)
427 menu_end = menu_items;
428 update_screen_locked();
429 }
430 pthread_mutex_unlock(&updateMutex);
431 }
432
SelectMenu(int sel)433 int WearRecoveryUI::SelectMenu(int sel) {
434 int old_sel;
435 pthread_mutex_lock(&updateMutex);
436 if (show_menu > 0) {
437 old_sel = menu_sel;
438 menu_sel = sel;
439 if (menu_sel < 0) menu_sel = 0;
440 if (menu_sel >= menu_items) menu_sel = menu_items-1;
441 if (menu_sel < menu_start) {
442 menu_start--;
443 menu_end--;
444 } else if (menu_sel >= menu_end && menu_sel < menu_items) {
445 menu_end++;
446 menu_start++;
447 }
448 sel = menu_sel;
449 if (menu_sel != old_sel) update_screen_locked();
450 }
451 pthread_mutex_unlock(&updateMutex);
452 return sel;
453 }
454
EndMenu()455 void WearRecoveryUI::EndMenu() {
456 int i;
457 pthread_mutex_lock(&updateMutex);
458 if (show_menu > 0 && text_rows > 0 && text_cols > 0) {
459 show_menu = 0;
460 update_screen_locked();
461 }
462 pthread_mutex_unlock(&updateMutex);
463 }
464
IsTextVisible()465 bool WearRecoveryUI::IsTextVisible()
466 {
467 pthread_mutex_lock(&updateMutex);
468 int visible = show_text;
469 pthread_mutex_unlock(&updateMutex);
470 return visible;
471 }
472
WasTextEverVisible()473 bool WearRecoveryUI::WasTextEverVisible()
474 {
475 pthread_mutex_lock(&updateMutex);
476 int ever_visible = show_text_ever;
477 pthread_mutex_unlock(&updateMutex);
478 return ever_visible;
479 }
480
ShowText(bool visible)481 void WearRecoveryUI::ShowText(bool visible)
482 {
483 pthread_mutex_lock(&updateMutex);
484 // Don't show text during ota install or factory reset
485 if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) {
486 pthread_mutex_unlock(&updateMutex);
487 return;
488 }
489 show_text = visible;
490 if (show_text) show_text_ever = 1;
491 update_screen_locked();
492 pthread_mutex_unlock(&updateMutex);
493 }
494
Redraw()495 void WearRecoveryUI::Redraw()
496 {
497 pthread_mutex_lock(&updateMutex);
498 update_screen_locked();
499 pthread_mutex_unlock(&updateMutex);
500 }
501
ShowFile(FILE * fp)502 void WearRecoveryUI::ShowFile(FILE* fp) {
503 std::vector<long> offsets;
504 offsets.push_back(ftell(fp));
505 ClearText();
506
507 struct stat sb;
508 fstat(fileno(fp), &sb);
509
510 bool show_prompt = false;
511 while (true) {
512 if (show_prompt) {
513 Print("--(%d%% of %d bytes)--",
514 static_cast<int>(100 * (double(ftell(fp)) / double(sb.st_size))),
515 static_cast<int>(sb.st_size));
516 Redraw();
517 while (show_prompt) {
518 show_prompt = false;
519 int key = WaitKey();
520 if (key == KEY_POWER || key == KEY_ENTER) {
521 return;
522 } else if (key == KEY_UP || key == KEY_VOLUMEUP) {
523 if (offsets.size() <= 1) {
524 show_prompt = true;
525 } else {
526 offsets.pop_back();
527 fseek(fp, offsets.back(), SEEK_SET);
528 }
529 } else {
530 if (feof(fp)) {
531 return;
532 }
533 offsets.push_back(ftell(fp));
534 }
535 }
536 ClearText();
537 }
538
539 int ch = getc(fp);
540 if (ch == EOF) {
541 text_row = text_top = text_rows - 2;
542 show_prompt = true;
543 } else {
544 PutChar(ch);
545 if (text_col == 0 && text_row >= text_rows - 2) {
546 text_top = text_row;
547 show_prompt = true;
548 }
549 }
550 }
551 }
552
PutChar(char ch)553 void WearRecoveryUI::PutChar(char ch) {
554 pthread_mutex_lock(&updateMutex);
555 if (ch != '\n') text[text_row][text_col++] = ch;
556 if (ch == '\n' || text_col >= text_cols) {
557 text_col = 0;
558 ++text_row;
559 }
560 pthread_mutex_unlock(&updateMutex);
561 }
562
ShowFile(const char * filename)563 void WearRecoveryUI::ShowFile(const char* filename) {
564 FILE* fp = fopen_path(filename, "re");
565 if (fp == nullptr) {
566 Print(" Unable to open %s: %s\n", filename, strerror(errno));
567 return;
568 }
569 ShowFile(fp);
570 fclose(fp);
571 }
572
ClearText()573 void WearRecoveryUI::ClearText() {
574 pthread_mutex_lock(&updateMutex);
575 text_col = 0;
576 text_row = 0;
577 text_top = 1;
578 for (size_t i = 0; i < text_rows; ++i) {
579 memset(text[i], 0, text_cols + 1);
580 }
581 pthread_mutex_unlock(&updateMutex);
582 }
583
PrintOnScreenOnly(const char * fmt,...)584 void WearRecoveryUI::PrintOnScreenOnly(const char *fmt, ...) {
585 va_list ap;
586 va_start(ap, fmt);
587 PrintV(fmt, false, ap);
588 va_end(ap);
589 }
590
PrintV(const char * fmt,bool copy_to_stdout,va_list ap)591 void WearRecoveryUI::PrintV(const char* fmt, bool copy_to_stdout, va_list ap) {
592 std::string str;
593 android::base::StringAppendV(&str, fmt, ap);
594
595 if (copy_to_stdout) {
596 fputs(str.c_str(), stdout);
597 }
598
599 pthread_mutex_lock(&updateMutex);
600 if (text_rows > 0 && text_cols > 0) {
601 for (const char* ptr = str.c_str(); *ptr != '\0'; ++ptr) {
602 if (*ptr == '\n' || text_col >= text_cols) {
603 text[text_row][text_col] = '\0';
604 text_col = 0;
605 text_row = (text_row + 1) % text_rows;
606 if (text_row == text_top) text_top = (text_top + 1) % text_rows;
607 }
608 if (*ptr != '\n') text[text_row][text_col++] = *ptr;
609 }
610 text[text_row][text_col] = '\0';
611 update_screen_locked();
612 }
613 pthread_mutex_unlock(&updateMutex);
614 }
615