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platform_bootable_recovery/recovery_ui/screen_ui.cpp
Richard Hansen e741c95667 recovery: Clarify help text 
Currently this help text is not rendered, but that will change in a
future commit.

Change-Id: Ic2f566b84c4f49610fe0dab5929abe19abef9275
2024-09-08 01:02:56 +02:00

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/*
* Copyright (C) 2011 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 "recovery_ui/screen_ui.h"
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.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 <algorithm>
#include <chrono>
#include <memory>
#include <string>
#include <thread>
#include <unordered_map>
#include <vector>
#include <android-base/chrono_utils.h>
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include "minui/minui.h"
#include "otautil/paths.h"
#include "recovery_ui/device.h"
#include "recovery_ui/ui.h"
enum DirectRenderManager {
DRM_INNER,
DRM_OUTER,
};
// Return the current time as a double (including fractions of a second).
static double now() {
struct timeval tv;
gettimeofday(&tv, nullptr);
return tv.tv_sec + tv.tv_usec / 1000000.0;
}
Menu::Menu(size_t initial_selection, const DrawInterface& draw_func)
: selection_(initial_selection), draw_funcs_(draw_func) {}
size_t Menu::selection() const {
return selection_;
}
TextMenu::TextMenu(bool scrollable, size_t max_items, size_t max_length,
const std::vector<std::string>& headers, const std::vector<std::string>& items,
size_t initial_selection, int char_height, const DrawInterface& draw_funcs)
: Menu(initial_selection, draw_funcs),
scrollable_(scrollable),
max_display_items_(max_items),
max_item_length_(max_length),
text_headers_(headers),
menu_start_(0),
char_height_(char_height) {
CHECK_LE(max_items, static_cast<size_t>(std::numeric_limits<int>::max()));
// It's fine to have more entries than text_rows_ if scrollable menu is supported.
size_t items_count = scrollable_ ? items.size() : std::min(items.size(), max_display_items_);
for (size_t i = 0; i < items_count; ++i) {
text_items_.emplace_back(items[i].substr(0, max_item_length_));
}
CHECK(!text_items_.empty());
}
const std::vector<std::string>& TextMenu::text_headers() const {
return text_headers_;
}
std::string TextMenu::TextItem(size_t index) const {
CHECK_LT(index, text_items_.size());
return text_items_[index];
}
size_t TextMenu::MenuStart() const {
return menu_start_;
}
size_t TextMenu::MenuEnd() const {
return std::min(ItemsCount(), menu_start_ + max_display_items_);
}
size_t TextMenu::ItemsCount() const {
return text_items_.size();
}
bool TextMenu::ItemsOverflow(std::string* cur_selection_str) const {
if (!scrollable_ || ItemsCount() <= max_display_items_) {
return false;
}
*cur_selection_str =
android::base::StringPrintf("Current item: %zu/%zu", selection_ + 1, ItemsCount());
return true;
}
// TODO(xunchang) modify the function parameters to button up & down.
int TextMenu::Select(int sel) {
CHECK_LE(ItemsCount(), static_cast<size_t>(std::numeric_limits<int>::max()));
int count = ItemsCount();
// Wraps the selection at boundary if the menu is not scrollable.
if (!scrollable_) {
if (sel < 0) {
selection_ = count - 1;
} else if (sel >= count) {
selection_ = 0;
} else {
selection_ = sel;
}
return selection_;
}
if (sel < 0) {
selection_ = 0;
} else if (sel >= count) {
selection_ = count - 1;
} else {
if (static_cast<size_t>(sel) < menu_start_) {
menu_start_--;
} else if (static_cast<size_t>(sel) >= MenuEnd()) {
menu_start_++;
}
selection_ = sel;
}
return selection_;
}
int TextMenu::DrawHeader(int x, int y) const {
int offset = 0;
draw_funcs_.SetColor(UIElement::HEADER);
if (!scrollable()) {
offset += draw_funcs_.DrawWrappedTextLines(x, y + offset, text_headers());
} else {
offset += draw_funcs_.DrawTextLines(x, y + offset, text_headers());
// Show the current menu item number in relation to total number if items don't fit on the
// screen.
std::string cur_selection_str;
if (ItemsOverflow(&cur_selection_str)) {
offset += draw_funcs_.DrawTextLine(x, y + offset, cur_selection_str, true);
}
}
return offset;
}
int TextMenu::DrawItems(int x, int y, int screen_width, bool long_press) const {
int offset = 0;
draw_funcs_.SetColor(UIElement::MENU);
// Do not draw the horizontal rule for wear devices.
if (!scrollable()) {
offset += draw_funcs_.DrawHorizontalRule(y + offset) + 4;
}
for (size_t i = MenuStart(); i < MenuEnd(); ++i) {
bool bold = false;
if (i == selection()) {
// Draw the highlight bar.
draw_funcs_.SetColor(long_press ? UIElement::MENU_SEL_BG_ACTIVE : UIElement::MENU_SEL_BG);
int bar_height = char_height_ + 4;
draw_funcs_.DrawHighlightBar(0, y + offset - 2, screen_width, bar_height);
// Bold white text for the selected item.
draw_funcs_.SetColor(UIElement::MENU_SEL_FG);
bold = true;
}
offset += draw_funcs_.DrawTextLine(x, y + offset, TextItem(i), bold);
draw_funcs_.SetColor(UIElement::MENU);
}
offset += draw_funcs_.DrawHorizontalRule(y + offset);
return offset;
}
GraphicMenu::GraphicMenu(const GRSurface* graphic_headers,
const std::vector<const GRSurface*>& graphic_items,
size_t initial_selection, const DrawInterface& draw_funcs)
: Menu(initial_selection, draw_funcs) {
graphic_headers_ = graphic_headers->Clone();
graphic_items_.reserve(graphic_items.size());
for (const auto& item : graphic_items) {
graphic_items_.emplace_back(item->Clone());
}
}
int GraphicMenu::Select(int sel) {
CHECK_LE(graphic_items_.size(), static_cast<size_t>(std::numeric_limits<int>::max()));
int count = graphic_items_.size();
// Wraps the selection at boundary if the menu is not scrollable.
if (sel < 0) {
selection_ = count - 1;
} else if (sel >= count) {
selection_ = 0;
} else {
selection_ = sel;
}
return selection_;
}
int GraphicMenu::DrawHeader(int x, int y) const {
draw_funcs_.SetColor(UIElement::HEADER);
draw_funcs_.DrawTextIcon(x, y, graphic_headers_.get());
return graphic_headers_->height;
}
int GraphicMenu::DrawItems(int x, int y, int screen_width, bool long_press) const {
int offset = 0;
draw_funcs_.SetColor(UIElement::MENU);
offset += draw_funcs_.DrawHorizontalRule(y + offset) + 4;
for (size_t i = 0; i < graphic_items_.size(); i++) {
auto& item = graphic_items_[i];
if (i == selection_) {
draw_funcs_.SetColor(long_press ? UIElement::MENU_SEL_BG_ACTIVE : UIElement::MENU_SEL_BG);
int bar_height = item->height + 4;
draw_funcs_.DrawHighlightBar(0, y + offset - 2, screen_width, bar_height);
// Bold white text for the selected item.
draw_funcs_.SetColor(UIElement::MENU_SEL_FG);
}
draw_funcs_.DrawTextIcon(x, y + offset, item.get());
offset += item->height;
draw_funcs_.SetColor(UIElement::MENU);
}
offset += draw_funcs_.DrawHorizontalRule(y + offset);
return offset;
}
bool GraphicMenu::Validate(size_t max_width, size_t max_height, const GRSurface* graphic_headers,
const std::vector<const GRSurface*>& graphic_items) {
int offset = 0;
if (!ValidateGraphicSurface(max_width, max_height, offset, graphic_headers)) {
return false;
}
offset += graphic_headers->height;
for (const auto& item : graphic_items) {
if (!ValidateGraphicSurface(max_width, max_height, offset, item)) {
return false;
}
offset += item->height;
}
return true;
}
bool GraphicMenu::ValidateGraphicSurface(size_t max_width, size_t max_height, int y,
const GRSurface* surface) {
if (!surface) {
fprintf(stderr, "Graphic surface can not be null\n");
return false;
}
if (surface->pixel_bytes != 1 || surface->width != surface->row_bytes) {
fprintf(stderr, "Invalid graphic surface, pixel bytes: %zu, width: %zu row_bytes: %zu\n",
surface->pixel_bytes, surface->width, surface->row_bytes);
return false;
}
if (surface->width > max_width || surface->height > max_height - y) {
fprintf(stderr,
"Graphic surface doesn't fit into the screen. width: %zu, height: %zu, max_width: %zu,"
" max_height: %zu, vertical offset: %d\n",
surface->width, surface->height, max_width, max_height, y);
return false;
}
return true;
}
ScreenRecoveryUI::ScreenRecoveryUI() : ScreenRecoveryUI(false) {}
constexpr int kDefaultMarginHeight = 0;
constexpr int kDefaultMarginWidth = 0;
constexpr int kDefaultAnimationFps = 30;
ScreenRecoveryUI::ScreenRecoveryUI(bool scrollable_menu)
: margin_width_(
android::base::GetIntProperty("ro.recovery.ui.margin_width", kDefaultMarginWidth)),
margin_height_(
android::base::GetIntProperty("ro.recovery.ui.margin_height", kDefaultMarginHeight)),
animation_fps_(
android::base::GetIntProperty("ro.recovery.ui.animation_fps", kDefaultAnimationFps)),
density_(static_cast<float>(android::base::GetIntProperty("ro.sf.lcd_density", 160)) / 160.f),
blank_unblank_on_init_(
android::base::GetBoolProperty("ro.recovery.ui.blank_unblank_on_init", false)),
current_icon_(NONE),
current_frame_(0),
intro_done_(false),
progressBarType(EMPTY),
progressScopeStart(0),
progressScopeSize(0),
progress(0),
pagesIdentical(false),
text_cols_(0),
text_rows_(0),
text_(nullptr),
text_col_(0),
text_row_(0),
show_text(false),
show_text_ever(false),
scrollable_menu_(scrollable_menu),
file_viewer_text_(nullptr),
stage(-1),
max_stage(-1),
locale_(""),
rtl_locale_(false),
is_graphics_available(false) {}
ScreenRecoveryUI::~ScreenRecoveryUI() {
progress_thread_stopped_ = true;
if (progress_thread_.joinable()) {
progress_thread_.join();
}
// No-op if gr_init() (via Init()) was not called or had failed.
gr_exit();
}
const GRSurface* ScreenRecoveryUI::GetCurrentFrame() const {
if (current_icon_ == INSTALLING_UPDATE || current_icon_ == ERASING) {
return intro_done_ ? loop_frames_[current_frame_].get() : intro_frames_[current_frame_].get();
}
return error_icon_.get();
}
const GRSurface* ScreenRecoveryUI::GetCurrentText() const {
switch (current_icon_) {
case ERASING:
return erasing_text_.get();
case ERROR:
return error_text_.get();
case INSTALLING_UPDATE:
return installing_text_.get();
case NO_COMMAND:
return no_command_text_.get();
case NONE:
abort();
}
}
int ScreenRecoveryUI::PixelsFromDp(int dp) const {
return dp * density_;
}
// Here's the intended layout:
// | portrait large landscape large
// ---------+-------------------------------------------------
// gap |
// icon | (200dp)
// gap | 68dp 68dp 56dp 112dp
// text | (14sp)
// gap | 32dp 32dp 26dp 52dp
// progress | (2dp)
// gap |
// Note that "baseline" is actually the *top* of each icon (because that's how our drawing routines
// work), so that's the more useful measurement for calling code. We use even top and bottom gaps.
enum Layout { PORTRAIT = 0, PORTRAIT_LARGE = 1, LANDSCAPE = 2, LANDSCAPE_LARGE = 3, LAYOUT_MAX };
enum Dimension { TEXT = 0, ICON = 1, DIMENSION_MAX };
static constexpr int kLayouts[LAYOUT_MAX][DIMENSION_MAX] = {
{ 32, 68 }, // PORTRAIT
{ 32, 68 }, // PORTRAIT_LARGE
{ 26, 56 }, // LANDSCAPE
{ 52, 112 }, // LANDSCAPE_LARGE
};
int ScreenRecoveryUI::GetAnimationBaseline() const {
return GetTextBaseline() - PixelsFromDp(kLayouts[layout_][ICON]) -
gr_get_height(loop_frames_[0].get());
}
int ScreenRecoveryUI::GetTextBaseline() const {
return GetProgressBaseline() - PixelsFromDp(kLayouts[layout_][TEXT]) -
gr_get_height(installing_text_.get());
}
int ScreenRecoveryUI::GetProgressBaseline() const {
int elements_sum = gr_get_height(loop_frames_[0].get()) + PixelsFromDp(kLayouts[layout_][ICON]) +
gr_get_height(installing_text_.get()) + PixelsFromDp(kLayouts[layout_][TEXT]) +
gr_get_height(progress_bar_fill_.get());
int bottom_gap = (ScreenHeight() - elements_sum) / 2;
return ScreenHeight() - bottom_gap - gr_get_height(progress_bar_fill_.get());
}
// Clear the screen and draw the currently selected background icon (if any).
// Should only be called with updateMutex locked.
void ScreenRecoveryUI::draw_background_locked() {
pagesIdentical = false;
gr_color(0, 0, 0, 255);
gr_clear();
if (current_icon_ != NONE) {
if (max_stage != -1) {
int stage_height = gr_get_height(stage_marker_empty_.get());
int stage_width = gr_get_width(stage_marker_empty_.get());
int x = (ScreenWidth() - max_stage * gr_get_width(stage_marker_empty_.get())) / 2;
int y = ScreenHeight() - stage_height - margin_height_;
for (int i = 0; i < max_stage; ++i) {
const auto& stage_surface = (i < stage) ? stage_marker_fill_ : stage_marker_empty_;
DrawSurface(stage_surface.get(), 0, 0, stage_width, stage_height, x, y);
x += stage_width;
}
}
const auto& text_surface = GetCurrentText();
int text_x = (ScreenWidth() - gr_get_width(text_surface)) / 2;
int text_y = GetTextBaseline();
gr_color(255, 255, 255, 255);
DrawTextIcon(text_x, text_y, text_surface);
}
}
// Draws the animation and progress bar (if any) on the screen. Does not flip pages. Should only be
// called with updateMutex locked.
void ScreenRecoveryUI::draw_foreground_locked() {
if (current_icon_ != NONE) {
const auto& frame = GetCurrentFrame();
int frame_width = gr_get_width(frame);
int frame_height = gr_get_height(frame);
int frame_x = (ScreenWidth() - frame_width) / 2;
int frame_y = GetAnimationBaseline();
if (frame_x >= 0 && frame_y >= 0 && (frame_x + frame_width) < ScreenWidth() &&
(frame_y + frame_height) < ScreenHeight())
DrawSurface(frame, 0, 0, frame_width, frame_height, frame_x, frame_y);
}
if (progressBarType != EMPTY) {
int width = gr_get_width(progress_bar_empty_.get());
int height = gr_get_height(progress_bar_empty_.get());
int progress_x = (ScreenWidth() - width) / 2;
int progress_y = GetProgressBaseline();
// Erase behind the progress bar (in case this was a progress-only update)
gr_color(0, 0, 0, 255);
DrawFill(progress_x, progress_y, width, height);
if (progressBarType == DETERMINATE) {
float p = progressScopeStart + progress * progressScopeSize;
int pos = static_cast<int>(p * width);
if (rtl_locale_) {
// Fill the progress bar from right to left.
if (pos > 0) {
DrawSurface(progress_bar_fill_.get(), width - pos, 0, pos, height,
progress_x + width - pos, progress_y);
}
if (pos < width - 1) {
DrawSurface(progress_bar_empty_.get(), 0, 0, width - pos, height, progress_x, progress_y);
}
} else {
// Fill the progress bar from left to right.
if (pos > 0) {
DrawSurface(progress_bar_fill_.get(), 0, 0, pos, height, progress_x, progress_y);
}
if (pos < width - 1) {
DrawSurface(progress_bar_empty_.get(), pos, 0, width - pos, height, progress_x + pos,
progress_y);
}
}
}
}
}
void ScreenRecoveryUI::SetColor(UIElement e) const {
switch (e) {
case UIElement::INFO:
gr_color(249, 194, 0, 255);
break;
case UIElement::HEADER:
gr_color(247, 0, 6, 255);
break;
case UIElement::MENU:
case UIElement::MENU_SEL_BG:
gr_color(0, 106, 157, 255);
break;
case UIElement::MENU_SEL_BG_ACTIVE:
gr_color(0, 156, 100, 255);
break;
case UIElement::MENU_SEL_FG:
gr_color(255, 255, 255, 255);
break;
case UIElement::LOG:
gr_color(196, 196, 196, 255);
break;
case UIElement::TEXT_FILL:
gr_color(0, 0, 0, 160);
break;
default:
gr_color(255, 255, 255, 255);
break;
}
}
void ScreenRecoveryUI::SelectAndShowBackgroundText(const std::vector<std::string>& locales_entries,
size_t sel) {
SetLocale(locales_entries[sel]);
std::vector<std::string> text_name = { "erasing_text", "error_text", "installing_text",
"installing_security_text", "no_command_text" };
std::unordered_map<std::string, std::unique_ptr<GRSurface>> surfaces;
for (const auto& name : text_name) {
auto text_image = LoadLocalizedBitmap(name);
if (!text_image) {
Print("Failed to load %s\n", name.c_str());
return;
}
surfaces.emplace(name, std::move(text_image));
}
std::lock_guard<std::mutex> lg(updateMutex);
gr_color(0, 0, 0, 255);
gr_clear();
int text_y = margin_height_;
int text_x = margin_width_;
int line_spacing = gr_sys_font()->char_height; // Put some extra space between images.
// Write the header and descriptive texts.
SetColor(UIElement::INFO);
std::string header = "Show background text image";
text_y += DrawTextLine(text_x, text_y, header, true);
std::string locale_selection = android::base::StringPrintf(
"Current locale: %s, %zu/%zu", locales_entries[sel].c_str(), sel + 1, locales_entries.size());
// clang-format off
std::vector<std::string> instruction = {
locale_selection,
"Use volume up/down to switch locales and power to exit."
};
// clang-format on
text_y += DrawWrappedTextLines(text_x, text_y, instruction);
// Iterate through the text images and display them in order for the current locale.
for (const auto& p : surfaces) {
text_y += line_spacing;
SetColor(UIElement::LOG);
text_y += DrawTextLine(text_x, text_y, p.first, false);
gr_color(255, 255, 255, 255);
gr_texticon(text_x, text_y, p.second.get());
text_y += gr_get_height(p.second.get());
}
// Update the whole screen.
gr_flip();
}
void ScreenRecoveryUI::CheckBackgroundTextImages() {
// Load a list of locales embedded in one of the resource files.
std::vector<std::string> locales_entries = get_locales_in_png("installing_text");
if (locales_entries.empty()) {
Print("Failed to load locales from the resource files\n");
return;
}
std::string saved_locale = locale_;
size_t selected = 0;
SelectAndShowBackgroundText(locales_entries, selected);
FlushKeys();
while (true) {
int key = WaitKey();
if (key == static_cast<int>(KeyError::INTERRUPTED)) break;
if (key == KEY_POWER || key == KEY_ENTER) {
break;
} else if (key == KEY_UP || key == KEY_VOLUMEUP) {
selected = (selected == 0) ? locales_entries.size() - 1 : selected - 1;
SelectAndShowBackgroundText(locales_entries, selected);
} else if (key == KEY_DOWN || key == KEY_VOLUMEDOWN) {
selected = (selected == locales_entries.size() - 1) ? 0 : selected + 1;
SelectAndShowBackgroundText(locales_entries, selected);
}
}
SetLocale(saved_locale);
}
int ScreenRecoveryUI::ScreenWidth() const {
return gr_fb_width();
}
int ScreenRecoveryUI::ScreenHeight() const {
return gr_fb_height();
}
void ScreenRecoveryUI::DrawSurface(const GRSurface* surface, int sx, int sy, int w, int h, int dx,
int dy) const {
gr_blit(surface, sx, sy, w, h, dx, dy);
}
int ScreenRecoveryUI::DrawHorizontalRule(int y) const {
gr_fill(0, y + 4, ScreenWidth(), y + 6);
return 8;
}
void ScreenRecoveryUI::DrawHighlightBar(int x, int y, int width, int height) const {
gr_fill(x, y, x + width, y + height);
}
void ScreenRecoveryUI::DrawFill(int x, int y, int w, int h) const {
gr_fill(x, y, w, h);
}
void ScreenRecoveryUI::DrawTextIcon(int x, int y, const GRSurface* surface) const {
gr_texticon(x, y, surface);
}
int ScreenRecoveryUI::DrawTextLine(int x, int y, const std::string& line, bool bold) const {
gr_text(gr_sys_font(), x, y, line.c_str(), bold);
return char_height_ + 4;
}
int ScreenRecoveryUI::DrawTextLines(int x, int y, const std::vector<std::string>& lines) const {
int offset = 0;
for (const auto& line : lines) {
offset += DrawTextLine(x, y + offset, line, false);
}
return offset;
}
int ScreenRecoveryUI::DrawWrappedTextLines(int x, int y,
const std::vector<std::string>& lines) const {
// Keep symmetrical margins based on the given offset (i.e. x).
size_t text_cols = (ScreenWidth() - x * 2) / char_width_;
int offset = 0;
for (const auto& line : lines) {
size_t next_start = 0;
while (next_start < line.size()) {
std::string sub = line.substr(next_start, text_cols + 1);
if (sub.size() <= text_cols) {
next_start += sub.size();
} else {
// Line too long and must be wrapped to text_cols columns.
size_t last_space = sub.find_last_of(" \t\n");
if (last_space == std::string::npos) {
// No space found, just draw as much as we can.
sub.resize(text_cols);
next_start += text_cols;
} else {
sub.resize(last_space);
next_start += last_space + 1;
}
}
offset += DrawTextLine(x, y + offset, sub, false);
}
}
return offset;
}
void ScreenRecoveryUI::SetTitle(const std::vector<std::string>& lines) {
title_lines_ = lines;
}
std::vector<std::string> ScreenRecoveryUI::GetMenuHelpMessage() const {
// clang-format off
static std::vector<std::string> REGULAR_HELP{
"Use the volume up/down keys to navigate.",
"Use the power key to select.",
};
static std::vector<std::string> LONG_PRESS_HELP{
"Any button cycles highlight.",
"Long-press activates.",
};
// clang-format on
return HasThreeButtons() ? REGULAR_HELP : LONG_PRESS_HELP;
}
// Redraws everything on the screen. Does not flip pages. Should only be called with updateMutex
// locked.
void ScreenRecoveryUI::draw_screen_locked() {
if (!show_text) {
draw_background_locked();
draw_foreground_locked();
return;
}
gr_color(0, 0, 0, 255);
gr_clear();
draw_menu_and_text_buffer_locked(GetMenuHelpMessage());
}
// Draws the menu and text buffer on the screen. Should only be called with updateMutex locked.
void ScreenRecoveryUI::draw_menu_and_text_buffer_locked(
const std::vector<std::string>& help_message) {
int y = margin_height_;
if (fastbootd_logo_ && fastbootd_logo_enabled_) {
// Try to get this centered on screen.
auto width = gr_get_width(fastbootd_logo_.get());
auto height = gr_get_height(fastbootd_logo_.get());
auto centered_x = ScreenWidth() / 2 - width / 2;
DrawSurface(fastbootd_logo_.get(), 0, 0, width, height, centered_x, y);
y += height;
}
if (menu_) {
int x = margin_width_ + kMenuIndent;
SetColor(UIElement::INFO);
for (size_t i = 0; i < title_lines_.size(); i++) {
y += DrawTextLine(x, y, title_lines_[i], i == 0);
}
y += DrawTextLines(x, y, help_message);
y += menu_->DrawHeader(x, y);
y += menu_->DrawItems(x, y, ScreenWidth(), IsLongPress());
}
// 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.
SetColor(UIElement::LOG);
int row = text_row_;
size_t count = 0;
for (int ty = ScreenHeight() - margin_height_ - char_height_; ty >= y && count < text_rows_;
ty -= char_height_, ++count) {
DrawTextLine(margin_width_, ty, text_[row], false);
--row;
if (row < 0) row = text_rows_ - 1;
}
}
// Redraw everything on the screen and flip the screen (make it visible).
// Should only be called with updateMutex locked.
void ScreenRecoveryUI::update_screen_locked() {
draw_screen_locked();
gr_flip();
}
// Updates only the progress bar, if possible, otherwise redraws the screen.
// Should only be called with updateMutex locked.
void ScreenRecoveryUI::update_progress_locked() {
if (show_text || !pagesIdentical) {
draw_screen_locked(); // Must redraw the whole screen
pagesIdentical = true;
} else {
draw_foreground_locked(); // Draw only the progress bar and overlays
}
gr_flip();
}
void ScreenRecoveryUI::ProgressThreadLoop() {
double interval = 1.0 / animation_fps_;
while (!progress_thread_stopped_) {
double start = now();
bool redraw = false;
{
std::lock_guard<std::mutex> lg(updateMutex);
// update the installation animation, if active
// skip this if we have a text overlay (too expensive to update)
if ((current_icon_ == INSTALLING_UPDATE || current_icon_ == ERASING) && !show_text) {
if (!intro_done_) {
if (current_frame_ == intro_frames_.size() - 1) {
intro_done_ = true;
current_frame_ = 0;
} else {
++current_frame_;
}
} else {
current_frame_ = (current_frame_ + 1) % loop_frames_.size();
}
redraw = true;
}
// move the progress bar forward on timed intervals, if configured
int duration = progressScopeDuration;
if (progressBarType == DETERMINATE && duration > 0) {
double elapsed = now() - progressScopeTime;
float p = 1.0 * elapsed / duration;
if (p > 1.0) p = 1.0;
if (p > progress) {
progress = p;
redraw = true;
}
}
if (redraw) update_progress_locked();
}
double end = now();
// minimum of 20ms delay between frames
double delay = interval - (end - start);
if (delay < 0.02) delay = 0.02;
usleep(static_cast<useconds_t>(delay * 1000000));
}
}
std::unique_ptr<GRSurface> ScreenRecoveryUI::LoadBitmap(const std::string& filename) {
GRSurface* surface;
if (auto result = res_create_display_surface(filename.c_str(), &surface); result < 0) {
LOG(ERROR) << "Failed to load bitmap " << filename << " (error " << result << ")";
return nullptr;
}
return std::unique_ptr<GRSurface>(surface);
}
std::unique_ptr<GRSurface> ScreenRecoveryUI::LoadLocalizedBitmap(const std::string& filename) {
GRSurface* surface;
auto result = res_create_localized_alpha_surface(filename.c_str(), locale_.c_str(), &surface);
if (result == 0) {
return std::unique_ptr<GRSurface>(surface);
}
// TODO(xunchang) create a error code enum to refine the retry condition.
LOG(WARNING) << "Failed to load bitmap " << filename << " for locale " << locale_ << " (error "
<< result << "). Falling back to use default locale.";
result = res_create_localized_alpha_surface(filename.c_str(), DEFAULT_LOCALE, &surface);
if (result == 0) {
return std::unique_ptr<GRSurface>(surface);
}
LOG(ERROR) << "Failed to load bitmap " << filename << " for locale " << DEFAULT_LOCALE
<< " (error " << result << ")";
return nullptr;
}
static char** Alloc2d(size_t rows, size_t cols) {
char** result = new char*[rows];
for (size_t i = 0; i < rows; ++i) {
result[i] = new char[cols];
memset(result[i], 0, cols);
}
return result;
}
// Choose the right background string to display during update.
void ScreenRecoveryUI::SetSystemUpdateText(bool security_update) {
if (security_update) {
installing_text_ = LoadLocalizedBitmap("installing_security_text");
} else {
installing_text_ = LoadLocalizedBitmap("installing_text");
}
Redraw();
}
bool ScreenRecoveryUI::InitTextParams() {
// gr_init() would return successfully on font initialization failure.
if (gr_sys_font() == nullptr) {
return false;
}
gr_font_size(gr_sys_font(), &char_width_, &char_height_);
text_rows_ = (ScreenHeight() - margin_height_ * 2) / char_height_;
text_cols_ = (ScreenWidth() - margin_width_ * 2) / char_width_;
return true;
}
bool ScreenRecoveryUI::LoadWipeDataMenuText() {
// Ignores the errors since the member variables will stay as nullptr.
cancel_wipe_data_text_ = LoadLocalizedBitmap("cancel_wipe_data_text");
factory_data_reset_text_ = LoadLocalizedBitmap("factory_data_reset_text");
try_again_text_ = LoadLocalizedBitmap("try_again_text");
wipe_data_confirmation_text_ = LoadLocalizedBitmap("wipe_data_confirmation_text");
wipe_data_menu_header_text_ = LoadLocalizedBitmap("wipe_data_menu_header_text");
return true;
}
static bool InitGraphics() {
// Timeout is same as init wait for file default of 5 seconds and is arbitrary
const unsigned timeout = 500; // 10ms increments
for (auto retry = timeout; retry > 0; --retry) {
if (gr_init() == 0) {
if (retry < timeout) {
// Log message like init wait for file completion log for consistency.
LOG(WARNING) << "wait for 'graphics' took " << ((timeout - retry) * 10) << "ms";
}
return true;
}
std::this_thread::sleep_for(10ms);
}
// Log message like init wait for file timeout log for consistency.
LOG(ERROR) << "timeout wait for 'graphics' took " << (timeout * 10) << "ms";
return false;
}
bool ScreenRecoveryUI::Init(const std::string& locale) {
RecoveryUI::Init(locale);
if (!InitGraphics()) {
return false;
}
is_graphics_available = true;
if (!InitTextParams()) {
return false;
}
if (blank_unblank_on_init_) {
gr_fb_blank(true);
gr_fb_blank(false);
}
// Are we portrait or landscape?
layout_ = (gr_fb_width() > gr_fb_height()) ? LANDSCAPE : PORTRAIT;
// Are we the large variant of our base layout?
if (gr_fb_height() > PixelsFromDp(800)) ++layout_;
text_ = Alloc2d(text_rows_, text_cols_ + 1);
file_viewer_text_ = Alloc2d(text_rows_, text_cols_ + 1);
text_col_ = text_row_ = 0;
// Set up the locale info.
SetLocale(locale);
error_icon_ = LoadBitmap("icon_error");
progress_bar_empty_ = LoadBitmap("progress_empty");
progress_bar_fill_ = LoadBitmap("progress_fill");
stage_marker_empty_ = LoadBitmap("stage_empty");
stage_marker_fill_ = LoadBitmap("stage_fill");
erasing_text_ = LoadLocalizedBitmap("erasing_text");
no_command_text_ = LoadLocalizedBitmap("no_command_text");
error_text_ = LoadLocalizedBitmap("error_text");
if (android::base::GetBoolProperty("ro.boot.dynamic_partitions", false)) {
fastbootd_logo_ = LoadBitmap("fastbootd");
}
// Background text for "installing_update" could be "installing update" or
// "installing security update". It will be set after Init() according to the commands in BCB.
installing_text_.reset();
LoadWipeDataMenuText();
LoadAnimation();
// Keep the progress bar updated, even when the process is otherwise busy.
progress_thread_ = std::thread(&ScreenRecoveryUI::ProgressThreadLoop, this);
// set the callback for hall sensor event
(void)ev_sync_sw_state([this](auto&& a, auto&& b) { return this->SetSwCallback(a, b);});
return true;
}
std::string ScreenRecoveryUI::GetLocale() const {
return locale_;
}
void ScreenRecoveryUI::LoadAnimation() {
std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(Paths::Get().resource_dir().c_str()),
closedir);
dirent* de;
std::vector<std::string> intro_frame_names;
std::vector<std::string> loop_frame_names;
while ((de = readdir(dir.get())) != nullptr) {
int value, num_chars;
if (sscanf(de->d_name, "intro%d%n.png", &value, &num_chars) == 1) {
intro_frame_names.emplace_back(de->d_name, num_chars);
} else if (sscanf(de->d_name, "loop%d%n.png", &value, &num_chars) == 1) {
loop_frame_names.emplace_back(de->d_name, num_chars);
}
}
size_t intro_frames = intro_frame_names.size();
size_t loop_frames = loop_frame_names.size();
// It's okay to not have an intro.
if (intro_frames == 0) intro_done_ = true;
// But you must have an animation.
if (loop_frames == 0) abort();
std::sort(intro_frame_names.begin(), intro_frame_names.end());
std::sort(loop_frame_names.begin(), loop_frame_names.end());
intro_frames_.clear();
intro_frames_.reserve(intro_frames);
for (const auto& frame_name : intro_frame_names) {
intro_frames_.emplace_back(LoadBitmap(frame_name));
}
loop_frames_.clear();
loop_frames_.reserve(loop_frames);
for (const auto& frame_name : loop_frame_names) {
loop_frames_.emplace_back(LoadBitmap(frame_name));
}
}
void ScreenRecoveryUI::SetBackground(Icon icon) {
std::lock_guard<std::mutex> lg(updateMutex);
current_icon_ = icon;
update_screen_locked();
}
void ScreenRecoveryUI::SetProgressType(ProgressType type) {
std::lock_guard<std::mutex> lg(updateMutex);
if (progressBarType != type) {
progressBarType = type;
}
progressScopeStart = 0;
progressScopeSize = 0;
progress = 0;
update_progress_locked();
}
void ScreenRecoveryUI::ShowProgress(float portion, float seconds) {
std::lock_guard<std::mutex> lg(updateMutex);
progressBarType = DETERMINATE;
progressScopeStart += progressScopeSize;
progressScopeSize = portion;
progressScopeTime = now();
progressScopeDuration = seconds;
progress = 0;
update_progress_locked();
}
void ScreenRecoveryUI::SetProgress(float fraction) {
std::lock_guard<std::mutex> lg(updateMutex);
if (fraction < 0.0) fraction = 0.0;
if (fraction > 1.0) fraction = 1.0;
if (progressBarType == DETERMINATE && fraction > progress) {
// Skip updates that aren't visibly different.
int width = gr_get_width(progress_bar_empty_.get());
float scale = width * progressScopeSize;
if ((int)(progress * scale) != (int)(fraction * scale)) {
progress = fraction;
update_progress_locked();
}
}
}
void ScreenRecoveryUI::SetStage(int current, int max) {
std::lock_guard<std::mutex> lg(updateMutex);
stage = current;
max_stage = max;
}
void ScreenRecoveryUI::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);
}
std::lock_guard<std::mutex> lg(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 (*ptr != '\n') text_[text_row_][text_col_++] = *ptr;
}
text_[text_row_][text_col_] = '\0';
update_screen_locked();
}
}
void ScreenRecoveryUI::Print(const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
PrintV(fmt, true, ap);
va_end(ap);
}
void ScreenRecoveryUI::PrintOnScreenOnly(const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
PrintV(fmt, false, ap);
va_end(ap);
}
void ScreenRecoveryUI::PutChar(char ch) {
std::lock_guard<std::mutex> lg(updateMutex);
if (ch != '\n') text_[text_row_][text_col_++] = ch;
if (ch == '\n' || text_col_ >= text_cols_) {
text_col_ = 0;
++text_row_;
}
}
void ScreenRecoveryUI::ClearText() {
std::lock_guard<std::mutex> lg(updateMutex);
text_col_ = 0;
text_row_ = 0;
for (size_t i = 0; i < text_rows_; ++i) {
memset(text_[i], 0, text_cols_ + 1);
}
}
void ScreenRecoveryUI::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) {
PrintOnScreenOnly("--(%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 == static_cast<int>(KeyError::INTERRUPTED)) return;
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) {
while (text_row_ < text_rows_ - 1) PutChar('\n');
show_prompt = true;
} else {
PutChar(ch);
if (text_col_ == 0 && text_row_ >= text_rows_ - 1) {
show_prompt = true;
}
}
}
}
void ScreenRecoveryUI::ShowFile(const std::string& filename) {
std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(filename.c_str(), "re"), fclose);
if (!fp) {
Print(" Unable to open %s: %s\n", filename.c_str(), strerror(errno));
return;
}
char** old_text = text_;
size_t old_text_col = text_col_;
size_t old_text_row = text_row_;
// Swap in the alternate screen and clear it.
text_ = file_viewer_text_;
ClearText();
ShowFile(fp.get());
text_ = old_text;
text_col_ = old_text_col;
text_row_ = old_text_row;
}
std::unique_ptr<Menu> ScreenRecoveryUI::CreateMenu(
const GRSurface* graphic_header, const std::vector<const GRSurface*>& graphic_items,
const std::vector<std::string>& text_headers, const std::vector<std::string>& text_items,
size_t initial_selection) const {
// horizontal unusable area: margin width + menu indent
size_t max_width = ScreenWidth() - margin_width_ - kMenuIndent;
// vertical unusable area: margin height + title lines + helper message + high light bar.
// It is safe to reserve more space.
size_t max_height = ScreenHeight() - margin_height_ - char_height_ * (title_lines_.size() + 3);
if (GraphicMenu::Validate(max_width, max_height, graphic_header, graphic_items)) {
return std::make_unique<GraphicMenu>(graphic_header, graphic_items, initial_selection, *this);
}
fprintf(stderr, "Failed to initialize graphic menu, falling back to use the text menu.\n");
return CreateMenu(text_headers, text_items, initial_selection);
}
std::unique_ptr<Menu> ScreenRecoveryUI::CreateMenu(const std::vector<std::string>& text_headers,
const std::vector<std::string>& text_items,
size_t initial_selection) const {
if (text_rows_ > 0 && text_cols_ > 1) {
return std::make_unique<TextMenu>(scrollable_menu_, text_rows_, text_cols_ - 1, text_headers,
text_items, initial_selection, char_height_, *this);
}
fprintf(stderr, "Failed to create text menu, text_rows %zu, text_cols %zu.\n", text_rows_,
text_cols_);
return nullptr;
}
int ScreenRecoveryUI::SelectMenu(int sel) {
std::lock_guard<std::mutex> lg(updateMutex);
if (menu_) {
int old_sel = menu_->selection();
sel = menu_->Select(sel);
if (sel != old_sel) {
update_screen_locked();
}
}
return sel;
}
size_t ScreenRecoveryUI::ShowMenu(std::unique_ptr<Menu>&& menu, bool menu_only,
const std::function<int(int, bool)>& key_handler) {
// Throw away keys pressed previously, so user doesn't accidentally trigger menu items.
FlushKeys();
// If there is a key interrupt in progress, return KeyError::INTERRUPTED without starting the
// menu.
if (IsKeyInterrupted()) return static_cast<size_t>(KeyError::INTERRUPTED);
CHECK(menu != nullptr);
// Starts and displays the menu
menu_ = std::move(menu);
Redraw();
int selected = menu_->selection();
int chosen_item = -1;
while (chosen_item < 0) {
int key = WaitKey();
if (key == static_cast<int>(KeyError::INTERRUPTED)) { // WaitKey() was interrupted.
return static_cast<size_t>(KeyError::INTERRUPTED);
}
if (key == static_cast<int>(KeyError::TIMED_OUT)) { // WaitKey() timed out.
if (WasTextEverVisible()) {
continue;
} else {
LOG(INFO) << "Timed out waiting for key input; rebooting.";
menu_.reset();
Redraw();
return static_cast<size_t>(KeyError::TIMED_OUT);
}
}
bool visible = IsTextVisible();
int action = key_handler(key, visible);
if (action < 0) {
switch (action) {
case Device::kHighlightUp:
selected = SelectMenu(--selected);
break;
case Device::kHighlightDown:
selected = SelectMenu(++selected);
break;
case Device::kInvokeItem:
chosen_item = selected;
break;
case Device::kNoAction:
break;
}
} else if (!menu_only) {
chosen_item = action;
}
}
menu_.reset();
Redraw();
return chosen_item;
}
size_t ScreenRecoveryUI::ShowMenu(const std::vector<std::string>& headers,
const std::vector<std::string>& items, size_t initial_selection,
bool menu_only,
const std::function<int(int, bool)>& key_handler) {
auto menu = CreateMenu(headers, items, initial_selection);
if (menu == nullptr) {
return initial_selection;
}
return ShowMenu(std::move(menu), menu_only, key_handler);
}
size_t ScreenRecoveryUI::ShowPromptWipeDataMenu(const std::vector<std::string>& backup_headers,
const std::vector<std::string>& backup_items,
const std::function<int(int, bool)>& key_handler) {
auto wipe_data_menu = CreateMenu(wipe_data_menu_header_text_.get(),
{ try_again_text_.get(), factory_data_reset_text_.get() },
backup_headers, backup_items, 0);
if (wipe_data_menu == nullptr) {
return 0;
}
return ShowMenu(std::move(wipe_data_menu), true, key_handler);
}
size_t ScreenRecoveryUI::ShowPromptWipeDataConfirmationMenu(
const std::vector<std::string>& backup_headers, const std::vector<std::string>& backup_items,
const std::function<int(int, bool)>& key_handler) {
auto confirmation_menu =
CreateMenu(wipe_data_confirmation_text_.get(),
{ cancel_wipe_data_text_.get(), factory_data_reset_text_.get() }, backup_headers,
backup_items, 0);
if (confirmation_menu == nullptr) {
return 0;
}
return ShowMenu(std::move(confirmation_menu), true, key_handler);
}
bool ScreenRecoveryUI::IsTextVisible() {
std::lock_guard<std::mutex> lg(updateMutex);
int visible = show_text;
return visible;
}
bool ScreenRecoveryUI::WasTextEverVisible() {
std::lock_guard<std::mutex> lg(updateMutex);
int ever_visible = show_text_ever;
return ever_visible;
}
void ScreenRecoveryUI::ShowText(bool visible) {
std::lock_guard<std::mutex> lg(updateMutex);
show_text = visible;
if (show_text) show_text_ever = true;
update_screen_locked();
}
void ScreenRecoveryUI::Redraw() {
std::lock_guard<std::mutex> lg(updateMutex);
update_screen_locked();
}
void ScreenRecoveryUI::KeyLongPress(int) {
// Redraw so that if we're in the menu, the highlight
// will change color to indicate a successful long press.
Redraw();
}
void ScreenRecoveryUI::SetLocale(const std::string& new_locale) {
locale_ = new_locale;
rtl_locale_ = false;
if (!new_locale.empty()) {
size_t separator = new_locale.find('-');
// lang has the language prefix prior to the separator, or full string if none exists.
std::string lang = new_locale.substr(0, separator);
// A bit cheesy: keep an explicit list of supported RTL languages.
if (lang == "ar" || // Arabic
lang == "fa" || // Persian (Farsi)
lang == "he" || // Hebrew (new language code)
lang == "iw" || // Hebrew (old language code)
lang == "ur") { // Urdu
rtl_locale_ = true;
}
}
}
int ScreenRecoveryUI::SetSwCallback(int code, int value) {
if (!is_graphics_available) { return -1; }
if (code > SW_MAX) { return -1; }
if (code != SW_LID) { return 0; }
/* detect dual display */
if (!gr_has_multiple_connectors()) { return -1; }
/* turn off all screen */
gr_fb_blank(true, DirectRenderManager::DRM_INNER);
gr_fb_blank(true, DirectRenderManager::DRM_OUTER);
gr_color(0, 0, 0, 255);
gr_clear();
/* turn on the screen */
gr_fb_blank(false, value);
gr_flip();
/* set the retation */
std::string rotation_str;
if (value == DirectRenderManager::DRM_OUTER) {
rotation_str =
android::base::GetProperty("ro.minui.second_rotation", "ROTATION_NONE");
} else {
rotation_str =
android::base::GetProperty("ro.minui.default_rotation", "ROTATION_NONE");
}
if (rotation_str == "ROTATION_RIGHT") {
gr_rotate(GRRotation::RIGHT);
} else if (rotation_str == "ROTATION_DOWN") {
gr_rotate(GRRotation::DOWN);
} else if (rotation_str == "ROTATION_LEFT") {
gr_rotate(GRRotation::LEFT);
} else { // "ROTATION_NONE" or unknown string
gr_rotate(GRRotation::NONE);
}
Redraw();
return 0;
}
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