refactor ui functions into a class

Move all the functions in ui.c to be members of a ScreenRecoveryUI
class, which is a subclass of an abstract RecoveryUI class.  Recovery
then creates a global singleton instance of this class and then invoke
the methods to drive the UI.  We use this to allow substitution of a
different RecoveryUI implementation for devices with radically
different form factors (eg, that don't have a screen).

Change-Id: I76bdd34eca506149f4cc07685df6a4890473f3d9

1 files changed, 0 insertions, 666 deletions

diff --git a/ui.cpp b/ui.cpp
deleted file mode 100644
index 657a01e..0000000
--- a/ui.cpp
+++ /dev/null
@@ -1,666 +0,0 @@
-/*
- * Copyright (C) 2007 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 <linux/input.h>
-#include <pthread.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 "common.h"
-#include <cutils/android_reboot.h>
-#include "minui/minui.h"
-#include "recovery_ui.h"
-#include "ui.h"
-
-#define MAX_COLS 96
-#define MAX_ROWS 32
-
-#define CHAR_WIDTH 10
-#define CHAR_HEIGHT 18
-
-#define UI_WAIT_KEY_TIMEOUT_SEC    120
-
-UIParameters ui_parameters = {
-    6,       // indeterminate progress bar frames
-    20,      // fps
-    7,       // installation icon frames (0 == static image)
-    13, 190, // installation icon overlay offset
-};
-
-static pthread_mutex_t gUpdateMutex = PTHREAD_MUTEX_INITIALIZER;
-static gr_surface gBackgroundIcon[NUM_BACKGROUND_ICONS];
-static gr_surface *gInstallationOverlay;
-static gr_surface *gProgressBarIndeterminate;
-static gr_surface gProgressBarEmpty;
-static gr_surface gProgressBarFill;
-
-static const struct { gr_surface* surface; const char *name; } BITMAPS[] = {
-    { &gBackgroundIcon[BACKGROUND_ICON_INSTALLING], "icon_installing" },
-    { &gBackgroundIcon[BACKGROUND_ICON_ERROR],      "icon_error" },
-    { &gProgressBarEmpty,               "progress_empty" },
-    { &gProgressBarFill,                "progress_fill" },
-    { NULL,                             NULL },
-};
-
-static int gCurrentIcon = 0;
-static int gInstallingFrame = 0;
-
-static enum ProgressBarType {
-    PROGRESSBAR_TYPE_NONE,
-    PROGRESSBAR_TYPE_INDETERMINATE,
-    PROGRESSBAR_TYPE_NORMAL,
-} gProgressBarType = PROGRESSBAR_TYPE_NONE;
-
-// Progress bar scope of current operation
-static float gProgressScopeStart = 0, gProgressScopeSize = 0, gProgress = 0;
-static double gProgressScopeTime, gProgressScopeDuration;
-
-// Set to 1 when both graphics pages are the same (except for the progress bar)
-static int gPagesIdentical = 0;
-
-// Log text overlay, displayed when a magic key is pressed
-static char text[MAX_ROWS][MAX_COLS];
-static int text_cols = 0, text_rows = 0;
-static int text_col = 0, text_row = 0, text_top = 0;
-static int show_text = 0;
-static int show_text_ever = 0;   // has show_text ever been 1?
-
-static char menu[MAX_ROWS][MAX_COLS];
-static int show_menu = 0;
-static int menu_top = 0, menu_items = 0, menu_sel = 0;
-
-// Key event input queue
-static pthread_mutex_t key_queue_mutex = PTHREAD_MUTEX_INITIALIZER;
-static pthread_cond_t key_queue_cond = PTHREAD_COND_INITIALIZER;
-static int key_queue[256], key_queue_len = 0;
-static volatile char key_pressed[KEY_MAX + 1];
-
-// 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;
-}
-
-// Draw the given frame over the installation overlay animation.  The
-// background is not cleared or draw with the base icon first; we
-// assume that the frame already contains some other frame of the
-// animation.  Does nothing if no overlay animation is defined.
-// Should only be called with gUpdateMutex locked.
-static void draw_install_overlay_locked(int frame) {
-    if (gInstallationOverlay == NULL) return;
-    gr_surface surface = gInstallationOverlay[frame];
-    int iconWidth = gr_get_width(surface);
-    int iconHeight = gr_get_height(surface);
-    gr_blit(surface, 0, 0, iconWidth, iconHeight,
-            ui_parameters.install_overlay_offset_x,
-            ui_parameters.install_overlay_offset_y);
-}
-
-// Clear the screen and draw the currently selected background icon (if any).
-// Should only be called with gUpdateMutex locked.
-static void draw_background_locked(int icon)
-{
-    gPagesIdentical = 0;
-    gr_color(0, 0, 0, 255);
-    gr_fill(0, 0, gr_fb_width(), gr_fb_height());
-
-    if (icon) {
-        gr_surface surface = gBackgroundIcon[icon];
-        int iconWidth = gr_get_width(surface);
-        int iconHeight = gr_get_height(surface);
-        int iconX = (gr_fb_width() - iconWidth) / 2;
-        int iconY = (gr_fb_height() - iconHeight) / 2;
-        gr_blit(surface, 0, 0, iconWidth, iconHeight, iconX, iconY);
-        if (icon == BACKGROUND_ICON_INSTALLING) {
-            draw_install_overlay_locked(gInstallingFrame);
-        }
-    }
-}
-
-// Draw the progress bar (if any) on the screen.  Does not flip pages.
-// Should only be called with gUpdateMutex locked.
-static void draw_progress_locked()
-{
-    if (gCurrentIcon == BACKGROUND_ICON_INSTALLING) {
-        draw_install_overlay_locked(gInstallingFrame);
-    }
-
-    if (gProgressBarType != PROGRESSBAR_TYPE_NONE) {
-        int iconHeight = gr_get_height(gBackgroundIcon[BACKGROUND_ICON_INSTALLING]);
-        int width = gr_get_width(gProgressBarEmpty);
-        int height = gr_get_height(gProgressBarEmpty);
-
-        int dx = (gr_fb_width() - width)/2;
-        int dy = (3*gr_fb_height() + iconHeight - 2*height)/4;
-
-        // Erase behind the progress bar (in case this was a progress-only update)
-        gr_color(0, 0, 0, 255);
-        gr_fill(dx, dy, width, height);
-
-        if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL) {
-            float progress = gProgressScopeStart + gProgress * gProgressScopeSize;
-            int pos = (int) (progress * width);
-
-            if (pos > 0) {
-                gr_blit(gProgressBarFill, 0, 0, pos, height, dx, dy);
-            }
-            if (pos < width-1) {
-                gr_blit(gProgressBarEmpty, pos, 0, width-pos, height, dx+pos, dy);
-            }
-        }
-
-        if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE) {
-            static int frame = 0;
-            gr_blit(gProgressBarIndeterminate[frame], 0, 0, width, height, dx, dy);
-            frame = (frame + 1) % ui_parameters.indeterminate_frames;
-        }
-    }
-}
-
-static void draw_text_line(int row, const char* t) {
-  if (t[0] != '\0') {
-    gr_text(0, (row+1)*CHAR_HEIGHT-1, t);
-  }
-}
-
-// Redraw everything on the screen.  Does not flip pages.
-// Should only be called with gUpdateMutex locked.
-static void draw_screen_locked(void)
-{
-    draw_background_locked(gCurrentIcon);
-    draw_progress_locked();
-
-    if (show_text) {
-        gr_color(0, 0, 0, 160);
-        gr_fill(0, 0, gr_fb_width(), gr_fb_height());
-
-        int i = 0;
-        if (show_menu) {
-            gr_color(64, 96, 255, 255);
-            gr_fill(0, (menu_top+menu_sel) * CHAR_HEIGHT,
-                    gr_fb_width(), (menu_top+menu_sel+1)*CHAR_HEIGHT+1);
-
-            for (; i < menu_top + menu_items; ++i) {
-                if (i == menu_top + menu_sel) {
-                    gr_color(255, 255, 255, 255);
-                    draw_text_line(i, menu[i]);
-                    gr_color(64, 96, 255, 255);
-                } else {
-                    draw_text_line(i, menu[i]);
-                }
-            }
-            gr_fill(0, i*CHAR_HEIGHT+CHAR_HEIGHT/2-1,
-                    gr_fb_width(), i*CHAR_HEIGHT+CHAR_HEIGHT/2+1);
-            ++i;
-        }
-
-        gr_color(255, 255, 0, 255);
-
-        for (; i < text_rows; ++i) {
-            draw_text_line(i, text[(i+text_top) % text_rows]);
-        }
-    }
-}
-
-// Redraw everything on the screen and flip the screen (make it visible).
-// Should only be called with gUpdateMutex locked.
-static void update_screen_locked(void)
-{
-    draw_screen_locked();
-    gr_flip();
-}
-
-// Updates only the progress bar, if possible, otherwise redraws the screen.
-// Should only be called with gUpdateMutex locked.
-static void update_progress_locked(void)
-{
-    if (show_text || !gPagesIdentical) {
-        draw_screen_locked();    // Must redraw the whole screen
-        gPagesIdentical = 1;
-    } else {
-        draw_progress_locked();  // Draw only the progress bar and overlays
-    }
-    gr_flip();
-}
-
-// Keeps the progress bar updated, even when the process is otherwise busy.
-static void *progress_thread(void *cookie)
-{
-    double interval = 1.0 / ui_parameters.update_fps;
-    for (;;) {
-        double start = now();
-        pthread_mutex_lock(&gUpdateMutex);
-
-        int redraw = 0;
-
-        // update the installation animation, if active
-        // skip this if we have a text overlay (too expensive to update)
-        if (gCurrentIcon == BACKGROUND_ICON_INSTALLING &&
-            ui_parameters.installing_frames > 0 &&
-            !show_text) {
-            gInstallingFrame =
-                (gInstallingFrame + 1) % ui_parameters.installing_frames;
-            redraw = 1;
-        }
-
-        // update the progress bar animation, if active
-        // skip this if we have a text overlay (too expensive to update)
-        if (gProgressBarType == PROGRESSBAR_TYPE_INDETERMINATE && !show_text) {
-            redraw = 1;
-        }
-
-        // move the progress bar forward on timed intervals, if configured
-        int duration = gProgressScopeDuration;
-        if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && duration > 0) {
-            double elapsed = now() - gProgressScopeTime;
-            float progress = 1.0 * elapsed / duration;
-            if (progress > 1.0) progress = 1.0;
-            if (progress > gProgress) {
-                gProgress = progress;
-                redraw = 1;
-            }
-        }
-
-        if (redraw) update_progress_locked();
-
-        pthread_mutex_unlock(&gUpdateMutex);
-        double end = now();
-        // minimum of 20ms delay between frames
-        double delay = interval - (end-start);
-        if (delay < 0.02) delay = 0.02;
-        usleep((long)(delay * 1000000));
-    }
-    return NULL;
-}
-
-static int rel_sum = 0;
-
-static int input_callback(int fd, short revents, void *data)
-{
-    struct input_event ev;
-    int ret;
-    int fake_key = 0;
-
-    ret = ev_get_input(fd, revents, &ev);
-    if (ret)
-        return -1;
-
-    if (ev.type == EV_SYN) {
-        return 0;
-    } else if (ev.type == EV_REL) {
-        if (ev.code == REL_Y) {
-            // accumulate the up or down motion reported by
-            // the trackball.  When it exceeds a threshold
-            // (positive or negative), fake an up/down
-            // key event.
-            rel_sum += ev.value;
-            if (rel_sum > 3) {
-                fake_key = 1;
-                ev.type = EV_KEY;
-                ev.code = KEY_DOWN;
-                ev.value = 1;
-                rel_sum = 0;
-            } else if (rel_sum < -3) {
-                fake_key = 1;
-                ev.type = EV_KEY;
-                ev.code = KEY_UP;
-                ev.value = 1;
-                rel_sum = 0;
-            }
-        }
-    } else {
-        rel_sum = 0;
-    }
-
-    if (ev.type != EV_KEY || ev.code > KEY_MAX)
-        return 0;
-
-    pthread_mutex_lock(&key_queue_mutex);
-    if (!fake_key) {
-        // our "fake" keys only report a key-down event (no
-        // key-up), so don't record them in the key_pressed
-        // table.
-        key_pressed[ev.code] = ev.value;
-    }
-    const int queue_max = sizeof(key_queue) / sizeof(key_queue[0]);
-    if (ev.value > 0 && key_queue_len < queue_max) {
-        key_queue[key_queue_len++] = ev.code;
-        pthread_cond_signal(&key_queue_cond);
-    }
-    pthread_mutex_unlock(&key_queue_mutex);
-
-    if (ev.value > 0 && device_toggle_display(key_pressed, ev.code)) {
-        pthread_mutex_lock(&gUpdateMutex);
-        show_text = !show_text;
-        if (show_text) show_text_ever = 1;
-        update_screen_locked();
-        pthread_mutex_unlock(&gUpdateMutex);
-    }
-
-    if (ev.value > 0 && device_reboot_now(key_pressed, ev.code)) {
-        android_reboot(ANDROID_RB_RESTART, 0, 0);
-    }
-
-    return 0;
-}
-
-// Reads input events, handles special hot keys, and adds to the key queue.
-static void *input_thread(void *cookie)
-{
-    for (;;) {
-        if (!ev_wait(-1))
-            ev_dispatch();
-    }
-    return NULL;
-}
-
-void ui_init(void)
-{
-    gr_init();
-    ev_init(input_callback, NULL);
-
-    text_col = text_row = 0;
-    text_rows = gr_fb_height() / CHAR_HEIGHT;
-    if (text_rows > MAX_ROWS) text_rows = MAX_ROWS;
-    text_top = 1;
-
-    text_cols = gr_fb_width() / CHAR_WIDTH;
-    if (text_cols > MAX_COLS - 1) text_cols = MAX_COLS - 1;
-
-    int i;
-    for (i = 0; BITMAPS[i].name != NULL; ++i) {
-        int result = res_create_surface(BITMAPS[i].name, BITMAPS[i].surface);
-        if (result < 0) {
-            LOGE("Missing bitmap %s\n(Code %d)\n", BITMAPS[i].name, result);
-        }
-    }
-
-    gProgressBarIndeterminate = (gr_surface*)malloc(ui_parameters.indeterminate_frames *
-                                                    sizeof(gr_surface));
-    for (i = 0; i < ui_parameters.indeterminate_frames; ++i) {
-        char filename[40];
-        // "indeterminate01.png", "indeterminate02.png", ...
-        sprintf(filename, "indeterminate%02d", i+1);
-        int result = res_create_surface(filename, gProgressBarIndeterminate+i);
-        if (result < 0) {
-            LOGE("Missing bitmap %s\n(Code %d)\n", filename, result);
-        }
-    }
-
-    if (ui_parameters.installing_frames > 0) {
-        gInstallationOverlay = (gr_surface*)malloc(ui_parameters.installing_frames *
-                                                   sizeof(gr_surface));
-        for (i = 0; i < ui_parameters.installing_frames; ++i) {
-            char filename[40];
-            // "icon_installing_overlay01.png",
-            // "icon_installing_overlay02.png", ...
-            sprintf(filename, "icon_installing_overlay%02d", i+1);
-            int result = res_create_surface(filename, gInstallationOverlay+i);
-            if (result < 0) {
-                LOGE("Missing bitmap %s\n(Code %d)\n", filename, result);
-            }
-        }
-
-        // Adjust the offset to account for the positioning of the
-        // base image on the screen.
-        if (gBackgroundIcon[BACKGROUND_ICON_INSTALLING] != NULL) {
-            gr_surface bg = gBackgroundIcon[BACKGROUND_ICON_INSTALLING];
-            ui_parameters.install_overlay_offset_x +=
-                (gr_fb_width() - gr_get_width(bg)) / 2;
-            ui_parameters.install_overlay_offset_y +=
-                (gr_fb_height() - gr_get_height(bg)) / 2;
-        }
-    } else {
-        gInstallationOverlay = NULL;
-    }
-
-    pthread_t t;
-    pthread_create(&t, NULL, progress_thread, NULL);
-    pthread_create(&t, NULL, input_thread, NULL);
-}
-
-void ui_set_background(int icon)
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    gCurrentIcon = icon;
-    update_screen_locked();
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-void ui_show_indeterminate_progress()
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    if (gProgressBarType != PROGRESSBAR_TYPE_INDETERMINATE) {
-        gProgressBarType = PROGRESSBAR_TYPE_INDETERMINATE;
-        update_progress_locked();
-    }
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-void ui_show_progress(float portion, int seconds)
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    gProgressBarType = PROGRESSBAR_TYPE_NORMAL;
-    gProgressScopeStart += gProgressScopeSize;
-    gProgressScopeSize = portion;
-    gProgressScopeTime = now();
-    gProgressScopeDuration = seconds;
-    gProgress = 0;
-    update_progress_locked();
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-void ui_set_progress(float fraction)
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    if (fraction < 0.0) fraction = 0.0;
-    if (fraction > 1.0) fraction = 1.0;
-    if (gProgressBarType == PROGRESSBAR_TYPE_NORMAL && fraction > gProgress) {
-        // Skip updates that aren't visibly different.
-        int width = gr_get_width(gProgressBarIndeterminate[0]);
-        float scale = width * gProgressScopeSize;
-        if ((int) (gProgress * scale) != (int) (fraction * scale)) {
-            gProgress = fraction;
-            update_progress_locked();
-        }
-    }
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-void ui_reset_progress()
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    gProgressBarType = PROGRESSBAR_TYPE_NONE;
-    gProgressScopeStart = gProgressScopeSize = 0;
-    gProgressScopeTime = gProgressScopeDuration = 0;
-    gProgress = 0;
-    update_screen_locked();
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-void ui_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(&gUpdateMutex);
-    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(&gUpdateMutex);
-}
-
-void ui_start_menu(const char* const * headers, const char* const * items,
-                   int initial_selection) {
-    int i;
-    pthread_mutex_lock(&gUpdateMutex);
-    if (text_rows > 0 && text_cols > 0) {
-        for (i = 0; i < text_rows; ++i) {
-            if (headers[i] == NULL) break;
-            strncpy(menu[i], headers[i], text_cols-1);
-            menu[i][text_cols-1] = '\0';
-        }
-        menu_top = i;
-        for (; i < text_rows; ++i) {
-            if (items[i-menu_top] == NULL) break;
-            strncpy(menu[i], items[i-menu_top], text_cols-1);
-            menu[i][text_cols-1] = '\0';
-        }
-        menu_items = i - menu_top;
-        show_menu = 1;
-        menu_sel = initial_selection;
-        update_screen_locked();
-    }
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-int ui_menu_select(int sel) {
-    int old_sel;
-    pthread_mutex_lock(&gUpdateMutex);
-    if (show_menu > 0) {
-        old_sel = menu_sel;
-        menu_sel = sel;
-        if (menu_sel < 0) menu_sel = 0;
-        if (menu_sel >= menu_items) menu_sel = menu_items-1;
-        sel = menu_sel;
-        if (menu_sel != old_sel) update_screen_locked();
-    }
-    pthread_mutex_unlock(&gUpdateMutex);
-    return sel;
-}
-
-void ui_end_menu() {
-    int i;
-    pthread_mutex_lock(&gUpdateMutex);
-    if (show_menu > 0 && text_rows > 0 && text_cols > 0) {
-        show_menu = 0;
-        update_screen_locked();
-    }
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-int ui_text_visible()
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    int visible = show_text;
-    pthread_mutex_unlock(&gUpdateMutex);
-    return visible;
-}
-
-int ui_text_ever_visible()
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    int ever_visible = show_text_ever;
-    pthread_mutex_unlock(&gUpdateMutex);
-    return ever_visible;
-}
-
-void ui_show_text(int visible)
-{
-    pthread_mutex_lock(&gUpdateMutex);
-    show_text = visible;
-    if (show_text) show_text_ever = 1;
-    update_screen_locked();
-    pthread_mutex_unlock(&gUpdateMutex);
-}
-
-// Return true if USB is connected.
-static int usb_connected() {
-    int fd = open("/sys/class/android_usb/android0/state", O_RDONLY);
-    if (fd < 0) {
-        printf("failed to open /sys/class/android_usb/android0/state: %s\n",
-               strerror(errno));
-        return 0;
-    }
-
-    char buf;
-    /* USB is connected if android_usb state is CONNECTED or CONFIGURED */
-    int connected = (read(fd, &buf, 1) == 1) && (buf == 'C');
-    if (close(fd) < 0) {
-        printf("failed to close /sys/class/android_usb/android0/state: %s\n",
-               strerror(errno));
-    }
-    return connected;
-}
-
-int ui_wait_key()
-{
-    pthread_mutex_lock(&key_queue_mutex);
-
-    // Time out after UI_WAIT_KEY_TIMEOUT_SEC, unless a USB cable is
-    // plugged in.
-    do {
-        struct timeval now;
-        struct timespec timeout;
-        gettimeofday(&now, NULL);
-        timeout.tv_sec = now.tv_sec;
-        timeout.tv_nsec = now.tv_usec * 1000;
-        timeout.tv_sec += UI_WAIT_KEY_TIMEOUT_SEC;
-
-        int rc = 0;
-        while (key_queue_len == 0 && rc != ETIMEDOUT) {
-            rc = pthread_cond_timedwait(&key_queue_cond, &key_queue_mutex,
-                                        &timeout);
-        }
-    } while (usb_connected() && key_queue_len == 0);
-
-    int key = -1;
-    if (key_queue_len > 0) {
-        key = key_queue[0];
-        memcpy(&key_queue[0], &key_queue[1], sizeof(int) * --key_queue_len);
-    }
-    pthread_mutex_unlock(&key_queue_mutex);
-    return key;
-}
-
-int ui_key_pressed(int key)
-{
-    // This is a volatile static array, don't bother locking
-    return key_pressed[key];
-}
-
-void ui_clear_key_queue() {
-    pthread_mutex_lock(&key_queue_mutex);
-    key_queue_len = 0;
-    pthread_mutex_unlock(&key_queue_mutex);
-}