blob: 5c7d27e1db7c4ac6b6089ac9f119e67d202e7762 [file] [log] [blame]
/*
Copyright 2012 bigbiff/Dees_Troy TeamWin
This file is part of TWRP/TeamWin Recovery Project.
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/input.h>
#include <pthread.h>
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/reboot.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <time.h>
#include <unistd.h>
extern "C"
{
#include "../twcommon.h"
#include <pixelflinger/pixelflinger.h>
}
#include "minuitwrp/minui.h"
#include "rapidxml.hpp"
#include "objects.hpp"
#include "../data.hpp"
#include "../variables.h"
#include "../partitions.hpp"
#include "../twrp-functions.hpp"
#include "../openrecoveryscript.hpp"
#include "../orscmd/orscmd.h"
#include "blanktimer.hpp"
#include "tw_atomic.hpp"
// Enable to print render time of each frame to the log file
//#define PRINT_RENDER_TIME 1
#ifdef _EVENT_LOGGING
#define LOGEVENT(...) LOGERR(__VA_ARGS__)
#else
#define LOGEVENT(...) do {} while (0)
#endif
using namespace rapidxml;
// Global values
static int gGuiInitialized = 0;
static TWAtomicInt gForceRender;
blanktimer blankTimer;
int ors_read_fd = -1;
static FILE* orsout = NULL;
static float scale_theme_w = 1;
static float scale_theme_h = 1;
// Needed by pages.cpp too
int gGuiRunning = 0;
int g_pty_fd = -1; // set by terminal on init
void terminal_pty_read();
int select_fd = 0;
static int gRecorder = -1;
extern "C" void gr_write_frame_to_file(int fd);
static void flip(void)
{
if (gRecorder != -1)
{
timespec time;
clock_gettime(CLOCK_MONOTONIC, &time);
write(gRecorder, &time, sizeof(timespec));
gr_write_frame_to_file(gRecorder);
}
gr_flip();
}
void rapidxml::parse_error_handler(const char *what, void *where)
{
fprintf(stderr, "Parser error: %s\n", what);
fprintf(stderr, " Start of string: %s\n",(char *) where);
LOGERR("Error parsing XML file.\n");
//abort();
}
class InputHandler
{
public:
void init()
{
// these might be read from DataManager in the future
touch_hold_ms = 500;
touch_repeat_ms = 100;
key_hold_ms = 500;
key_repeat_ms = 100;
touch_status = TS_NONE;
key_status = KS_NONE;
state = AS_NO_ACTION;
x = y = 0;
#ifndef TW_NO_SCREEN_TIMEOUT
{
string seconds;
DataManager::GetValue("tw_screen_timeout_secs", seconds);
blankTimer.setTime(atoi(seconds.c_str()));
blankTimer.resetTimerAndUnblank();
}
#else
LOGINFO("Skipping screen timeout: TW_NO_SCREEN_TIMEOUT is set\n");
#endif
}
// process input events. returns true if any event was received.
bool processInput(int timeout_ms);
void handleDrag();
private:
// timeouts for touch/key hold and repeat
int touch_hold_ms;
int touch_repeat_ms;
int key_hold_ms;
int key_repeat_ms;
enum touch_status_enum {
TS_NONE = 0,
TS_TOUCH_AND_HOLD = 1,
TS_TOUCH_REPEAT = 2,
};
enum key_status_enum {
KS_NONE = 0,
KS_KEY_PRESSED = 1,
KS_KEY_REPEAT = 2,
};
enum action_state_enum {
AS_IN_ACTION_AREA = 0, // we've touched a spot with an action
AS_NO_ACTION = 1, // we've touched in an empty area (no action) and ignore remaining events until touch release
};
touch_status_enum touch_status;
key_status_enum key_status;
action_state_enum state;
int x, y; // x and y coordinates of last touch
struct timeval touchStart; // used to track time for long press / key repeat
void processHoldAndRepeat();
void process_EV_REL(input_event& ev);
void process_EV_ABS(input_event& ev);
void process_EV_KEY(input_event& ev);
void doTouchStart();
};
InputHandler input_handler;
bool InputHandler::processInput(int timeout_ms)
{
input_event ev;
int ret = ev_get(&ev, timeout_ms);
if (ret < 0)
{
// This path means that we did not get any new touch data, but
// we do not get new touch data if you press and hold on either
// the screen or on a keyboard key or mouse button
if (touch_status || key_status)
processHoldAndRepeat();
return (ret != -2); // -2 means no more events in the queue
}
switch (ev.type)
{
case EV_ABS:
process_EV_ABS(ev);
break;
case EV_REL:
process_EV_REL(ev);
break;
case EV_KEY:
process_EV_KEY(ev);
break;
}
if (ev.code != KEY_POWER && ev.code > KEY_RESERVED)
blankTimer.resetTimerAndUnblank();
return true; // we got an event, so there might be more in the queue
}
void InputHandler::processHoldAndRepeat()
{
HardwareKeyboard *kb = PageManager::GetHardwareKeyboard();
// touch and key repeat section
struct timeval curTime;
gettimeofday(&curTime, NULL);
long seconds = curTime.tv_sec - touchStart.tv_sec;
long useconds = curTime.tv_usec - touchStart.tv_usec;
long mtime = ((seconds) * 1000 + useconds / 1000.0) + 0.5;
if (touch_status == TS_TOUCH_AND_HOLD && mtime > touch_hold_ms)
{
touch_status = TS_TOUCH_REPEAT;
gettimeofday(&touchStart, NULL);
LOGEVENT("TOUCH_HOLD: %d,%d\n", x, y);
PageManager::NotifyTouch(TOUCH_HOLD, x, y);
}
else if (touch_status == TS_TOUCH_REPEAT && mtime > touch_repeat_ms)
{
LOGEVENT("TOUCH_REPEAT: %d,%d\n", x, y);
gettimeofday(&touchStart, NULL);
PageManager::NotifyTouch(TOUCH_REPEAT, x, y);
}
else if (key_status == KS_KEY_PRESSED && mtime > key_hold_ms)
{
LOGEVENT("KEY_HOLD: %d,%d\n", x, y);
gettimeofday(&touchStart, NULL);
key_status = KS_KEY_REPEAT;
kb->KeyRepeat();
}
else if (key_status == KS_KEY_REPEAT && mtime > key_repeat_ms)
{
LOGEVENT("KEY_REPEAT: %d,%d\n", x, y);
gettimeofday(&touchStart, NULL);
kb->KeyRepeat();
}
}
void InputHandler::doTouchStart()
{
LOGEVENT("TOUCH_START: %d,%d\n", x, y);
if (PageManager::NotifyTouch(TOUCH_START, x, y) > 0)
state = AS_NO_ACTION;
else
state = AS_IN_ACTION_AREA;
touch_status = TS_TOUCH_AND_HOLD;
gettimeofday(&touchStart, NULL);
}
void InputHandler::process_EV_ABS(input_event& ev)
{
x = ev.value >> 16;
y = ev.value & 0xFFFF;
if (ev.code == 0)
{
#ifndef TW_USE_KEY_CODE_TOUCH_SYNC
if (state == AS_IN_ACTION_AREA)
{
LOGEVENT("TOUCH_RELEASE: %d,%d\n", x, y);
PageManager::NotifyTouch(TOUCH_RELEASE, x, y);
}
touch_status = TS_NONE;
#endif
}
else
{
if (!touch_status)
{
#ifndef TW_USE_KEY_CODE_TOUCH_SYNC
doTouchStart();
#endif
}
else
{
if (state == AS_IN_ACTION_AREA)
{
LOGEVENT("TOUCH_DRAG: %d,%d\n", x, y);
}
}
}
}
void InputHandler::process_EV_KEY(input_event& ev)
{
HardwareKeyboard *kb = PageManager::GetHardwareKeyboard();
// Handle key-press here
LOGEVENT("TOUCH_KEY: %d\n", ev.code);
// Left mouse button is treated as a touch
if (ev.code == BTN_LEFT)
{
MouseCursor *cursor = PageManager::GetMouseCursor();
if (ev.value == 1)
{
cursor->GetPos(x, y);
doTouchStart();
}
else if (touch_status)
{
// Left mouse button was previously pressed and now is
// being released so send a TOUCH_RELEASE
if (state == AS_IN_ACTION_AREA)
{
cursor->GetPos(x, y);
LOGEVENT("Mouse TOUCH_RELEASE: %d,%d\n", x, y);
PageManager::NotifyTouch(TOUCH_RELEASE, x, y);
}
touch_status = TS_NONE;
}
}
// side mouse button, often used for "back" function
else if (ev.code == BTN_SIDE)
{
if (ev.value == 1)
kb->KeyDown(KEY_BACK);
else
kb->KeyUp(KEY_BACK);
} else if (ev.value != 0) {
// This is a key press
#ifdef TW_USE_KEY_CODE_TOUCH_SYNC
if (ev.code == TW_USE_KEY_CODE_TOUCH_SYNC) {
LOGEVENT("key code %i key press == touch start %i %i\n", TW_USE_KEY_CODE_TOUCH_SYNC, x, y);
doTouchStart();
return;
}
#endif
if (kb->KeyDown(ev.code)) {
// Key repeat is enabled for this key
key_status = KS_KEY_PRESSED;
touch_status = TS_NONE;
gettimeofday(&touchStart, NULL);
} else {
key_status = KS_NONE;
touch_status = TS_NONE;
}
} else {
// This is a key release
kb->KeyUp(ev.code);
key_status = KS_NONE;
touch_status = TS_NONE;
#ifdef TW_USE_KEY_CODE_TOUCH_SYNC
if (ev.code == TW_USE_KEY_CODE_TOUCH_SYNC) {
LOGEVENT("key code %i key release == touch release %i %i\n", TW_USE_KEY_CODE_TOUCH_SYNC, x, y);
PageManager::NotifyTouch(TOUCH_RELEASE, x, y);
}
#endif
}
}
void InputHandler::process_EV_REL(input_event& ev)
{
// Mouse movement
MouseCursor *cursor = PageManager::GetMouseCursor();
LOGEVENT("EV_REL %d %d\n", ev.code, ev.value);
if (ev.code == REL_X)
cursor->Move(ev.value, 0);
else if (ev.code == REL_Y)
cursor->Move(0, ev.value);
if (touch_status) {
cursor->GetPos(x, y);
LOGEVENT("Mouse TOUCH_DRAG: %d, %d\n", x, y);
key_status = KS_NONE;
}
}
void InputHandler::handleDrag()
{
// This allows us to only send one NotifyTouch event per render
// cycle to reduce overhead and perceived input latency.
static int prevx = 0, prevy = 0; // these track where the last drag notice was so that we don't send duplicate drag notices
if (touch_status && (x != prevx || y != prevy)) {
prevx = x;
prevy = y;
if (PageManager::NotifyTouch(TOUCH_DRAG, x, y) > 0)
state = AS_NO_ACTION;
else
state = AS_IN_ACTION_AREA;
}
}
void set_select_fd() {
select_fd = ors_read_fd + 1;
if (g_pty_fd >= select_fd)
select_fd = g_pty_fd + 1;
if (PartitionManager.uevent_pfd.fd >= select_fd)
select_fd = PartitionManager.uevent_pfd.fd + 1;
}
static void setup_ors_command()
{
ors_read_fd = -1;
set_select_fd();
unlink(ORS_INPUT_FILE);
if (mkfifo(ORS_INPUT_FILE, 06660) != 0) {
LOGINFO("Unable to mkfifo %s\n", ORS_INPUT_FILE);
return;
}
unlink(ORS_OUTPUT_FILE);
if (mkfifo(ORS_OUTPUT_FILE, 06666) != 0) {
LOGINFO("Unable to mkfifo %s\n", ORS_OUTPUT_FILE);
unlink(ORS_INPUT_FILE);
return;
}
ors_read_fd = open(ORS_INPUT_FILE, O_RDONLY | O_NONBLOCK);
if (ors_read_fd < 0) {
LOGINFO("Unable to open %s\n", ORS_INPUT_FILE);
unlink(ORS_INPUT_FILE);
unlink(ORS_OUTPUT_FILE);
}
set_select_fd();
}
// callback called after a CLI command was executed
static void ors_command_done()
{
gui_set_FILE(NULL);
fclose(orsout);
orsout = NULL;
if (DataManager::GetIntValue("tw_page_done") == 0) {
// The select function will return ready to read and the
// read function will return errno 19 no such device unless
// we set everything up all over again.
close(ors_read_fd);
setup_ors_command();
}
}
static void ors_command_read()
{
char command[1024];
int read_ret = read(ors_read_fd, &command, sizeof(command));
if (read_ret > 0) {
command[1022] = '\n';
command[1023] = '\0';
LOGINFO("Command '%s' received\n", command);
orsout = fopen(ORS_OUTPUT_FILE, "w");
if (!orsout) {
close(ors_read_fd);
ors_read_fd = -1;
set_select_fd();
LOGINFO("Unable to fopen %s\n", ORS_OUTPUT_FILE);
unlink(ORS_INPUT_FILE);
unlink(ORS_OUTPUT_FILE);
return;
}
if (DataManager::GetIntValue("tw_busy") != 0) {
fputs("Failed, operation in progress\n", orsout);
LOGINFO("Command cannot be performed, operation in progress.\n");
fclose(orsout);
} else {
if (strlen(command) == 11 && strncmp(command, "dumpstrings", 11) == 0) {
gui_set_FILE(orsout);
PageManager::GetResources()->DumpStrings();
ors_command_done();
} else if (strlen(command) == 11 && strncmp(command, "reloadtheme", 11) == 0) {
PageManager::RequestReload();
ors_command_done();
} else if (strlen(command) > 11 && strncmp(command, "changepage=", 11) == 0) {
char* pg = &command[11];
gui_changePage(pg);
ors_command_done();
} else {
// mirror output messages
gui_set_FILE(orsout);
// close orsout and restart listener after command is done
OpenRecoveryScript::Call_After_CLI_Command(ors_command_done);
// run the command in a threaded action...
DataManager::SetValue("tw_action", "twcmd");
DataManager::SetValue("tw_action_param", command);
// ...and switch back to the current page when finished
std::string currentPage = PageManager::GetCurrentPage();
DataManager::SetValue("tw_has_action2", "1");
DataManager::SetValue("tw_action2", "page");
DataManager::SetValue("tw_action2_param", currentPage);
DataManager::SetValue("tw_action_text1", gui_lookup("running_recovery_commands", "Running Recovery Commands"));
DataManager::SetValue("tw_action_text2", "");
gui_changePage("singleaction_page");
// now immediately return to the GUI main loop (the action runs in the background thread)
// put all things that need to be done after the command is finished into ors_command_done, not here
}
}
}
}
// Get and dispatch input events until it's time to draw the next frame
// This special function will return immediately the first time, but then
// always returns 1/30th of a second (or immediately if called later) from
// the last time it was called
static void loopTimer(int input_timeout_ms)
{
static timespec lastCall;
static int initialized = 0;
if (!initialized)
{
clock_gettime(CLOCK_MONOTONIC, &lastCall);
initialized = 1;
return;
}
do
{
bool got_event = input_handler.processInput(input_timeout_ms); // get inputs but don't send drag notices
timespec curTime;
clock_gettime(CLOCK_MONOTONIC, &curTime);
timespec diff = TWFunc::timespec_diff(lastCall, curTime);
// This is really 2 or 30 times per second
// As long as we get events, increase the timeout so we can catch up with input
long timeout = got_event ? 500000000 : 33333333;
if (diff.tv_sec || diff.tv_nsec > timeout)
{
// int32_t input_time = TWFunc::timespec_diff_ms(lastCall, curTime);
// LOGINFO("loopTimer(): %u ms, count: %u\n", input_time, count);
lastCall = curTime;
input_handler.handleDrag(); // send only drag notices if needed
return;
}
// We need to sleep some period time microseconds
//unsigned int sleepTime = 33333 -(diff.tv_nsec / 1000);
//usleep(sleepTime); // removed so we can scan for input
input_timeout_ms = 0;
} while (1);
}
static int runPages(const char *page_name, const int stop_on_page_done)
{
DataManager::SetValue("tw_page_done", 0);
DataManager::SetValue("tw_gui_done", 0);
if (page_name) {
PageManager::SetStartPage(page_name);
gui_changePage(page_name);
}
gGuiRunning = 1;
DataManager::SetValue("tw_loaded", 1);
struct timeval timeout;
fd_set fdset;
int has_data = 0;
int input_timeout_ms = 0;
int idle_frames = 0;
for (;;)
{
loopTimer(input_timeout_ms);
FD_ZERO(&fdset);
timeout.tv_sec = 0;
timeout.tv_usec = 1;
if (g_pty_fd > 0) {
FD_SET(g_pty_fd, &fdset);
}
if (PartitionManager.uevent_pfd.fd > 0) {
FD_SET(PartitionManager.uevent_pfd.fd, &fdset);
}
#ifndef TW_OEM_BUILD
if (ors_read_fd > 0 && !orsout) { // orsout is non-NULL if a command is still running
FD_SET(ors_read_fd, &fdset);
}
#endif
// TODO: combine this select with the poll done by input handling
has_data = select(select_fd, &fdset, NULL, NULL, &timeout);
if (has_data > 0) {
if (g_pty_fd > 0 && FD_ISSET(g_pty_fd, &fdset))
terminal_pty_read();
if (PartitionManager.uevent_pfd.fd > 0 && FD_ISSET(PartitionManager.uevent_pfd.fd, &fdset))
PartitionManager.read_uevent();
if (ors_read_fd > 0 && !orsout && FD_ISSET(ors_read_fd, &fdset))
ors_command_read();
}
if (!gForceRender.get_value())
{
int ret = PageManager::Update();
if (ret == 0)
++idle_frames;
else if (ret == -2)
break; // Theme reload failure
else
idle_frames = 0;
// due to possible animation objects, we need to delay activating the input timeout
input_timeout_ms = idle_frames > 15 ? 1000 : 0;
#ifndef PRINT_RENDER_TIME
if (ret > 1)
PageManager::Render();
if (ret > 0)
flip();
#else
if (ret > 1)
{
timespec start, end;
int32_t render_t, flip_t;
clock_gettime(CLOCK_MONOTONIC, &start);
PageManager::Render();
clock_gettime(CLOCK_MONOTONIC, &end);
render_t = TWFunc::timespec_diff_ms(start, end);
flip();
clock_gettime(CLOCK_MONOTONIC, &start);
flip_t = TWFunc::timespec_diff_ms(end, start);
LOGINFO("Render(): %u ms, flip(): %u ms, total: %u ms\n", render_t, flip_t, render_t+flip_t);
}
else if (ret > 0)
flip();
#endif
}
else
{
gForceRender.set_value(0);
PageManager::Render();
flip();
input_timeout_ms = 0;
}
blankTimer.checkForTimeout();
if (stop_on_page_done && DataManager::GetIntValue("tw_page_done") != 0)
{
gui_changePage("main");
break;
}
if (DataManager::GetIntValue("tw_gui_done") != 0) {
break;
}
}
if (ors_read_fd > 0)
close(ors_read_fd);
ors_read_fd = -1;
set_select_fd();
gGuiRunning = 0;
return 0;
}
int gui_forceRender(void)
{
gForceRender.set_value(1);
return 0;
}
int gui_changePage(std::string newPage)
{
LOGINFO("Set page: '%s'\n", newPage.c_str());
PageManager::ChangePage(newPage);
gForceRender.set_value(1);
return 0;
}
int gui_changeOverlay(std::string overlay)
{
LOGINFO("Set overlay: '%s'\n", overlay.c_str());
PageManager::ChangeOverlay(overlay);
gForceRender.set_value(1);
return 0;
}
std::string gui_parse_text(std::string str)
{
// This function parses text for DataManager values encompassed by %value% in the XML
// and string resources (%@resource_name%)
size_t pos = 0, next, end;
while (1)
{
next = str.find("{@", pos);
if (next == std::string::npos)
break;
end = str.find('}', next + 1);
if (end == std::string::npos)
break;
std::string var = str.substr(next + 2, (end - next) - 2);
str.erase(next, (end - next) + 1);
size_t default_loc = var.find('=', 0);
std::string lookup;
if (default_loc == std::string::npos) {
str.insert(next, PageManager::GetResources()->FindString(var));
} else {
lookup = var.substr(0, default_loc);
std::string default_string = var.substr(default_loc + 1, var.size() - default_loc - 1);
str.insert(next, PageManager::GetResources()->FindString(lookup, default_string));
}
}
pos = 0;
while (1)
{
next = str.find('%', pos);
if (next == std::string::npos)
return str;
end = str.find('%', next + 1);
if (end == std::string::npos)
return str;
// We have a block of data
std::string var = str.substr(next + 1, (end - next) - 1);
str.erase(next, (end - next) + 1);
if (next + 1 == end)
str.insert(next, 1, '%');
else
{
std::string value;
if (var.size() > 0 && var[0] == '@') {
// this is a string resource ("%@string_name%")
value = PageManager::GetResources()->FindString(var.substr(1));
str.insert(next, value);
}
else if (DataManager::GetValue(var, value) == 0)
str.insert(next, value);
}
pos = next + 1;
}
}
std::string gui_lookup(const std::string& resource_name, const std::string& default_value) {
return PageManager::GetResources()->FindString(resource_name, default_value);
}
extern "C" int gui_init(void)
{
gr_init();
TWFunc::Set_Brightness(DataManager::GetStrValue("tw_brightness"));
#ifdef TW_SCREEN_BLANK_ON_BOOT
printf("TW_SCREEN_BLANK_ON_BOOT := true\n");
blankTimer.blank();
blankTimer.resetTimerAndUnblank();
#endif
// load and show splash screen
if (PageManager::LoadPackage("splash", TWRES "splash.xml", "splash")) {
LOGERR("Failed to load splash screen XML.\n");
}
else {
PageManager::SelectPackage("splash");
PageManager::Render();
flip();
PageManager::ReleasePackage("splash");
}
#ifdef TW_DELAY_TOUCH_INIT_MS
usleep(TW_DELAY_TOUCH_INIT_MS);
#endif
ev_init();
return 0;
}
extern "C" int gui_loadResources(void)
{
#ifndef TW_OEM_BUILD
int check = 0;
DataManager::GetValue(TW_IS_ENCRYPTED, check);
if (check)
{
if (PageManager::LoadPackage("TWRP", TWRES "ui.xml", "decrypt"))
{
gui_err("base_pkg_err=Failed to load base packages.");
goto error;
}
else
check = 1;
}
if (check == 0)
{
std::string theme_path;
theme_path = DataManager::GetSettingsStoragePath();
if (!PartitionManager.Mount_Settings_Storage(false))
{
int retry_count = 5;
while (retry_count > 0 && !PartitionManager.Mount_Settings_Storage(false))
{
usleep(500000);
retry_count--;
}
if (!PartitionManager.Mount_Settings_Storage(true))
{
LOGINFO("Unable to mount %s during GUI startup.\n", theme_path.c_str());
check = 1;
}
}
theme_path += TWFunc::Check_For_TwrpFolder() + "/theme/ui.zip";
if (check || PageManager::LoadPackage("TWRP", theme_path, "main"))
{
#endif // ifndef TW_OEM_BUILD
if (PageManager::LoadPackage("TWRP", TWRES "ui.xml", "main"))
{
gui_err("base_pkg_err=Failed to load base packages.");
goto error;
}
#ifndef TW_OEM_BUILD
}
}
#endif // ifndef TW_OEM_BUILD
// Set the default package
PageManager::SelectPackage("TWRP");
gGuiInitialized = 1;
return 0;
error:
LOGERR("An internal error has occurred: unable to load theme.\n");
gGuiInitialized = 0;
return -1;
}
extern "C" int gui_loadCustomResources(void)
{
#ifndef TW_OEM_BUILD
if (!PartitionManager.Mount_Settings_Storage(false)) {
LOGINFO("Unable to mount settings storage during GUI startup.\n");
return -1;
}
std::string theme_path = DataManager::GetSettingsStoragePath();
theme_path += TWFunc::Check_For_TwrpFolder() + "/theme/ui.zip";
// Check for a custom theme
if (TWFunc::Path_Exists(theme_path)) {
// There is a custom theme, try to load it
if (PageManager::ReloadPackage("TWRP", theme_path)) {
// Custom theme failed to load, try to load stock theme
if (PageManager::ReloadPackage("TWRP", TWRES "ui.xml")) {
gui_err("base_pkg_err=Failed to load base packages.");
goto error;
}
}
}
// Set the default package
PageManager::SelectPackage("TWRP");
#endif
return 0;
#ifndef TW_OEM_BUILD
error:
LOGERR("An internal error has occurred: unable to load theme.\n");
gGuiInitialized = 0;
return -1;
#endif
}
extern "C" int gui_start(void)
{
return gui_startPage("main", 1, 0);
}
extern "C" int gui_startPage(const char *page_name, __attribute__((unused)) const int allow_commands, int stop_on_page_done)
{
if (!gGuiInitialized)
return -1;
// Set the default package
PageManager::SelectPackage("TWRP");
input_handler.init();
#ifndef TW_OEM_BUILD
if (allow_commands)
{
if (ors_read_fd < 0)
setup_ors_command();
} else {
if (ors_read_fd >= 0) {
close(ors_read_fd);
ors_read_fd = -1;
}
}
#endif
return runPages(page_name, stop_on_page_done);
}
extern "C" void set_scale_values(float w, float h)
{
scale_theme_w = w;
scale_theme_h = h;
}
extern "C" int scale_theme_x(int initial_x)
{
if (scale_theme_w != 1) {
int scaled = (float)initial_x * scale_theme_w;
if (scaled == 0 && initial_x > 0)
return 1;
return scaled;
}
return initial_x;
}
extern "C" int scale_theme_y(int initial_y)
{
if (scale_theme_h != 1) {
int scaled = (float)initial_y * scale_theme_h;
if (scaled == 0 && initial_y > 0)
return 1;
return scaled;
}
return initial_y;
}
extern "C" int scale_theme_min(int initial_value)
{
if (scale_theme_w != 1 || scale_theme_h != 1) {
if (scale_theme_w < scale_theme_h)
return scale_theme_x(initial_value);
else
return scale_theme_y(initial_value);
}
return initial_value;
}
extern "C" float get_scale_w()
{
return scale_theme_w;
}
extern "C" float get_scale_h()
{
return scale_theme_h;
}