summaryrefslogtreecommitdiffstats
path: root/wear_ui.cpp
blob: bfa7097eafc0e1663ed3bc4143ae925b1b62e7da (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>

#include <vector>

#include "common.h"
#include "device.h"
#include "wear_ui.h"
#include "cutils/properties.h"
#include "android-base/strings.h"
#include "android-base/stringprintf.h"

// There's only (at most) one of these objects, and global callbacks
// (for pthread_create, and the input event system) need to find it,
// so use a global variable.
static WearRecoveryUI* self = NULL;

// Return the current time as a double (including fractions of a second).
static double now() {
    struct timeval tv;
    gettimeofday(&tv, NULL);
    return tv.tv_sec + tv.tv_usec / 1000000.0;
}

WearRecoveryUI::WearRecoveryUI() :
    progress_bar_y(259),
    outer_height(0),
    outer_width(0),
    menu_unusable_rows(0) {
    intro_frames = 22;
    loop_frames = 60;
    animation_fps = 30;

    for (size_t i = 0; i < 5; i++)
        backgroundIcon[i] = NULL;

    self = this;
}

int WearRecoveryUI::GetProgressBaseline() {
    return progress_bar_y;
}

// Draw background frame on the screen.  Does not flip pages.
// Should only be called with updateMutex locked.
// TODO merge drawing routines with screen_ui
void WearRecoveryUI::draw_background_locked()
{
    pagesIdentical = false;
    gr_color(0, 0, 0, 255);
    gr_fill(0, 0, gr_fb_width(), gr_fb_height());

    if (currentIcon != NONE) {
        GRSurface* surface;
        if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) {
            if (!intro_done) {
                surface = introFrames[current_frame];
            } else {
                surface = loopFrames[current_frame];
            }
        }
        else {
            surface = backgroundIcon[currentIcon];
        }

        int width = gr_get_width(surface);
        int height = gr_get_height(surface);

        int x = (gr_fb_width() - width) / 2;
        int y = (gr_fb_height() - height) / 2;

        gr_blit(surface, 0, 0, width, height, x, y);
    }
}

static const char* HEADERS[] = {
    "Swipe up/down to move.",
    "Swipe left/right to select.",
    "",
    NULL
};

// TODO merge drawing routines with screen_ui
void WearRecoveryUI::draw_screen_locked()
{
    char cur_selection_str[50];

    draw_background_locked();
    if (!show_text) {
        draw_foreground_locked();
    } else {
        SetColor(TEXT_FILL);
        gr_fill(0, 0, gr_fb_width(), gr_fb_height());

        int y = outer_height;
        int x = outer_width;
        if (show_menu) {
            char recovery_fingerprint[PROPERTY_VALUE_MAX];
            property_get("ro.bootimage.build.fingerprint", recovery_fingerprint, "");
            SetColor(HEADER);
            DrawTextLine(x + 4, &y, "Android Recovery", true);
            for (auto& chunk: android::base::Split(recovery_fingerprint, ":")) {
                DrawTextLine(x +4, &y, chunk.c_str(), false);
            }

            // This is actually the help strings.
            DrawTextLines(x + 4, &y, HEADERS);
            SetColor(HEADER);
            DrawTextLines(x + 4, &y, menu_headers_);

            // Show the current menu item number in relation to total number if
            // items don't fit on the screen.
            if (menu_items > menu_end - menu_start) {
                sprintf(cur_selection_str, "Current item: %d/%d", menu_sel + 1, menu_items);
                gr_text(gr_sys_font(), x+4, y, cur_selection_str, 1);
                y += char_height_+4;
            }

            // Menu begins here
            SetColor(MENU);

            for (int i = menu_start; i < menu_end; ++i) {

                if (i == menu_sel) {
                    // draw the highlight bar
                    SetColor(MENU_SEL_BG);
                    gr_fill(x, y-2, gr_fb_width()-x, y+char_height_+2);
                    // white text of selected item
                    SetColor(MENU_SEL_FG);
                    if (menu_[i][0]) {
                        gr_text(gr_sys_font(), x + 4, y, menu_[i], 1);
                    }
                    SetColor(MENU);
                } else if (menu_[i][0]) {
                    gr_text(gr_sys_font(), x + 4, y, menu_[i], 0);
                }
                y += char_height_+4;
            }
            SetColor(MENU);
            y += 4;
            gr_fill(0, y, gr_fb_width(), y+2);
            y += 4;
        }

        SetColor(LOG);

        // display from the bottom up, until we hit the top of the
        // screen, the bottom of the menu, or we've displayed the
        // entire text buffer.
        int ty;
        int row = (text_top_ + text_rows_ - 1) % text_rows_;
        size_t count = 0;
        for (int ty = gr_fb_height() - char_height_ - outer_height;
             ty > y + 2 && count < text_rows_;
             ty -= char_height_, ++count) {
            gr_text(gr_sys_font(), x+4, ty, text_[row], 0);
            --row;
            if (row < 0) row = text_rows_ - 1;
        }
    }
}

// TODO merge drawing routines with screen_ui
void WearRecoveryUI::update_progress_locked() {
    draw_screen_locked();
    gr_flip();
}

void WearRecoveryUI::InitTextParams() {
    ScreenRecoveryUI::InitTextParams();

    text_cols_ = (gr_fb_width() - (outer_width * 2)) / char_width_;

    if (text_rows_ > kMaxRows) text_rows_ = kMaxRows;
    if (text_cols_ > kMaxCols) text_cols_ = kMaxCols;

    visible_text_rows = (gr_fb_height() - (outer_height * 2)) / char_height_;
}

void WearRecoveryUI::Init() {
    ScreenRecoveryUI::Init();

    LoadBitmap("icon_installing", &backgroundIcon[INSTALLING_UPDATE]);
    backgroundIcon[ERASING] = backgroundIcon[INSTALLING_UPDATE];
    LoadBitmap("icon_error", &backgroundIcon[ERROR]);
    backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR];
}

void WearRecoveryUI::SetStage(int current, int max)
{
}

void WearRecoveryUI::Print(const char *fmt, ...)
{
    char buf[256];
    va_list ap;
    va_start(ap, fmt);
    vsnprintf(buf, 256, fmt, ap);
    va_end(ap);

    fputs(buf, stdout);

    // This can get called before ui_init(), so be careful.
    pthread_mutex_lock(&updateMutex);
    if (text_rows_ > 0 && text_cols_ > 0) {
        char *ptr;
        for (ptr = buf; *ptr != '\0'; ++ptr) {
            if (*ptr == '\n' || text_col_ >= text_cols_) {
                text_[text_row_][text_col_] = '\0';
                text_col_ = 0;
                text_row_ = (text_row_ + 1) % text_rows_;
                if (text_row_ == text_top_) text_top_ = (text_top_ + 1) % text_rows_;
            }
            if (*ptr != '\n') text_[text_row_][text_col_++] = *ptr;
        }
        text_[text_row_][text_col_] = '\0';
        update_screen_locked();
    }
    pthread_mutex_unlock(&updateMutex);
}

void WearRecoveryUI::StartMenu(const char* const * headers, const char* const * items,
                               int initial_selection) {
    pthread_mutex_lock(&updateMutex);
    if (text_rows_ > 0 && text_cols_ > 0) {
        menu_headers_ = headers;
        size_t i = 0;
        // "i < text_rows_" is removed from the loop termination condition,
        // which is different from the one in ScreenRecoveryUI::StartMenu().
        // Because WearRecoveryUI supports scrollable menu, it's fine to have
        // more entries than text_rows_. The menu may be truncated otherwise.
        // Bug: 23752519
        for (; items[i] != nullptr; i++) {
            strncpy(menu_[i], items[i], text_cols_ - 1);
            menu_[i][text_cols_ - 1] = '\0';
        }
        menu_items = i;
        show_menu = true;
        menu_sel = initial_selection;
        menu_start = 0;
        menu_end = visible_text_rows - 1 - menu_unusable_rows;
        if (menu_items <= menu_end)
          menu_end = menu_items;
        update_screen_locked();
    }
    pthread_mutex_unlock(&updateMutex);
}

int WearRecoveryUI::SelectMenu(int sel) {
    int old_sel;
    pthread_mutex_lock(&updateMutex);
    if (show_menu) {
        old_sel = menu_sel;
        menu_sel = sel;
        if (menu_sel < 0) menu_sel = 0;
        if (menu_sel >= menu_items) menu_sel = menu_items-1;
        if (menu_sel < menu_start) {
          menu_start--;
          menu_end--;
        } else if (menu_sel >= menu_end && menu_sel < menu_items) {
          menu_end++;
          menu_start++;
        }
        sel = menu_sel;
        if (menu_sel != old_sel) update_screen_locked();
    }
    pthread_mutex_unlock(&updateMutex);
    return sel;
}

void WearRecoveryUI::ShowFile(FILE* fp) {
    std::vector<long> offsets;
    offsets.push_back(ftell(fp));
    ClearText();

    struct stat sb;
    fstat(fileno(fp), &sb);

    bool show_prompt = false;
    while (true) {
        if (show_prompt) {
            Print("--(%d%% of %d bytes)--",
                  static_cast<int>(100 * (double(ftell(fp)) / double(sb.st_size))),
                  static_cast<int>(sb.st_size));
            Redraw();
            while (show_prompt) {
                show_prompt = false;
                int key = WaitKey();
                if (key == KEY_POWER || key == KEY_ENTER) {
                    return;
                } else if (key == KEY_UP || key == KEY_VOLUMEUP) {
                    if (offsets.size() <= 1) {
                        show_prompt = true;
                    } else {
                        offsets.pop_back();
                        fseek(fp, offsets.back(), SEEK_SET);
                    }
                } else {
                    if (feof(fp)) {
                        return;
                    }
                    offsets.push_back(ftell(fp));
                }
            }
            ClearText();
        }

        int ch = getc(fp);
        if (ch == EOF) {
            text_row_ = text_top_ = text_rows_ - 2;
            show_prompt = true;
        } else {
            PutChar(ch);
            if (text_col_ == 0 && text_row_ >= text_rows_ - 2) {
                text_top_ = text_row_;
                show_prompt = true;
            }
        }
    }
}

void WearRecoveryUI::PutChar(char ch) {
    pthread_mutex_lock(&updateMutex);
    if (ch != '\n') text_[text_row_][text_col_++] = ch;
    if (ch == '\n' || text_col_ >= text_cols_) {
        text_col_ = 0;
        ++text_row_;
    }
    pthread_mutex_unlock(&updateMutex);
}

void WearRecoveryUI::ShowFile(const char* filename) {
    FILE* fp = fopen_path(filename, "re");
    if (fp == nullptr) {
        Print("  Unable to open %s: %s\n", filename, strerror(errno));
        return;
    }
    ShowFile(fp);
    fclose(fp);
}

void WearRecoveryUI::ClearText() {
    pthread_mutex_lock(&updateMutex);
    text_col_ = 0;
    text_row_ = 0;
    text_top_ = 1;
    for (size_t i = 0; i < text_rows_; ++i) {
        memset(text_[i], 0, text_cols_ + 1);
    }
    pthread_mutex_unlock(&updateMutex);
}

void WearRecoveryUI::PrintOnScreenOnly(const char *fmt, ...) {
    va_list ap;
    va_start(ap, fmt);
    PrintV(fmt, false, ap);
    va_end(ap);
}

void WearRecoveryUI::PrintV(const char* fmt, bool copy_to_stdout, va_list ap) {
    std::string str;
    android::base::StringAppendV(&str, fmt, ap);

    if (copy_to_stdout) {
        fputs(str.c_str(), stdout);
    }

    pthread_mutex_lock(&updateMutex);
    if (text_rows_ > 0 && text_cols_ > 0) {
        for (const char* ptr = str.c_str(); *ptr != '\0'; ++ptr) {
            if (*ptr == '\n' || text_col_ >= text_cols_) {
                text_[text_row_][text_col_] = '\0';
                text_col_ = 0;
                text_row_ = (text_row_ + 1) % text_rows_;
                if (text_row_ == text_top_) text_top_ = (text_top_ + 1) % text_rows_;
            }
            if (*ptr != '\n') text_[text_row_][text_col_++] = *ptr;
        }
        text_[text_row_][text_col_] = '\0';
        update_screen_locked();
    }
    pthread_mutex_unlock(&updateMutex);
}