/*
* 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 "wear_ui.h"
#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 <string>
#include <vector>
#include "common.h"
#include "device.h"
#include "android-base/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) {
std::string recovery_fingerprint =
android::base::GetProperty("ro.bootimage.build.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();
}
bool WearRecoveryUI::InitTextParams() {
if (!ScreenRecoveryUI::InitTextParams()) {
return false;
}
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_;
return true;
}
bool WearRecoveryUI::Init(const std::string& locale) {
if (!ScreenRecoveryUI::Init(locale)) {
return false;
}
LoadBitmap("icon_error", &backgroundIcon[ERROR]);
backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR];
// This leaves backgroundIcon[INSTALLING_UPDATE] and backgroundIcon[ERASING]
// as NULL which is fine since draw_background_locked() doesn't use them.
return true;
}
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<off_t> offsets;
offsets.push_back(ftello(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(ftello(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(ftello(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);
}
