exeabyss
5 years ago
parent
c2de7ac291
commit
035b94df45
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/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "input.h"
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#include "buttons.h"
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#include "config.h"
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#include "gettext.h"
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#include "layout2.h"
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#include "memory.h"
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#include "oled.h"
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#include "rng.h"
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#include "usb.h"
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#define CARET_SHOW 80
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#define CARET_CYCLE (CARET_SHOW * 2)
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void buttonCheckRepeat(bool *yes, bool *no, bool *confirm) {
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*yes = false;
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*no = false;
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*confirm = false;
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const int Threshold0 = 20;
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const int Thresholds[] = {Threshold0, 80, 20, 18, 16, 14, 12, 10, 8, 6, 4};
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const int MaxThresholdLevel = sizeof(Thresholds) / sizeof(Thresholds[0]) - 1;
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static int yesthreshold = Threshold0;
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static int nothreshold = Threshold0;
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static int yeslevel = 0;
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static int nolevel = 0;
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static bool both = false;
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usbSleep(5);
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buttonUpdate();
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if (both) {
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if (!button.YesDown && !button.NoDown) {
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both = false;
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yeslevel = 0;
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nolevel = 0;
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yesthreshold = Thresholds[0];
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nothreshold = Thresholds[0];
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}
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} else if ((button.YesDown && button.NoDown) ||
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(button.YesUp && button.NoDown) ||
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(button.YesDown && button.NoUp) || (button.YesUp && button.NoUp)) {
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if (!yeslevel && !nolevel) {
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both = true;
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*confirm = true;
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}
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} else {
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if (button.YesUp) {
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if (!yeslevel) *yes = true;
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yeslevel = 0;
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yesthreshold = Thresholds[0];
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} else if (button.YesDown >= yesthreshold) {
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if (yeslevel < MaxThresholdLevel) ++yeslevel;
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yesthreshold += Thresholds[yeslevel];
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*yes = true;
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}
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if (button.NoUp) {
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if (!nolevel) *no = true;
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nolevel = 0;
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nothreshold = Thresholds[0];
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} else if (button.NoDown >= nothreshold) {
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if (nolevel < MaxThresholdLevel) ++nolevel;
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nothreshold += Thresholds[nolevel];
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*no = true;
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}
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}
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}
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void buttonWaitForYesUp(void) {
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buttonUpdate();
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for (;;) {
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usbSleep(5);
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buttonUpdate();
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if (button.YesUp) break;
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}
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}
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void buttonWaitForIdle(void) {
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buttonUpdate();
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for (;;) {
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usbSleep(5);
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buttonUpdate();
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if (!button.YesDown && !button.YesUp && !button.NoDown && !button.NoUp)
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break;
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}
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}
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void requestOnDeviceTextInput(void) {
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layoutDialog(&bmp_icon_question, _("Cancel"), _("Confirm"), NULL,
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_("Do you like to use"), _("on-device text input?"), NULL, NULL,
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NULL, NULL);
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buttonUpdate();
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for (;;) {
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usbSleep(5);
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buttonUpdate();
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if (button.YesUp || button.NoUp) break;
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}
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layoutSwipe();
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session_setUseOnDeviceTextInput(button.YesUp);
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}
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int findCharIndex(const char entries[], char needle, int numtotal,
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int startindex, bool forward) {
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if (numtotal <= 1 || entries[startindex] == needle) return startindex;
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int step = forward ? 1 : -1;
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int index = (startindex + step + numtotal) % numtotal;
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while (index != startindex) {
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if (entries[index] == needle) return index;
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index += step;
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}
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return startindex;
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}
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int inputTextScroll(char *text, int *textcharindex, int maxtextcharindex,
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const char entries[], int textwidth, int entryindex,
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int numtotal, int numscreen, int horizontalpadding,
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const int groups[], int numgroup, int numskipingroups,
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int *caret) {
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for (;; *caret = (*caret + 1) % CARET_CYCLE) {
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bool yes, no, confirm;
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buttonCheckRepeat(&yes, &no, &confirm);
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if (confirm) {
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buttonWaitForIdle();
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if (entries[entryindex] == CHAR_BCKSPC) {
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if (*textcharindex > 0) {
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--(*textcharindex);
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text[*textcharindex] = 0;
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}
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} else if (entries[entryindex] == CHAR_DONE) {
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return INPUT_DONE;
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} else {
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if (*textcharindex < maxtextcharindex) {
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text[*textcharindex] = entries[entryindex];
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++(*textcharindex);
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}
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return entryindex;
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}
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entryindex = random32() % numtotal;
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} else {
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if (yes) entryindex = (entryindex + 1) % numtotal;
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if (no) entryindex = (entryindex - 1 + numtotal) % numtotal;
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}
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layoutScrollInput(text, textwidth, numtotal, numscreen, entryindex, entries,
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horizontalpadding, numgroup, groups, numskipingroups,
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*caret < CARET_SHOW);
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}
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}
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bool inputText(char *text, int maxtextlen, const char characters[],
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int numcharacters, char groupseparator, int width,
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bool requiredone, bool allowempty) {
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#define MAX_NUM_CHARACTERS_GROUPS 32
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int charactersGroups[MAX_NUM_CHARACTERS_GROUPS];
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charactersGroups[0] = 0;
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int numcharactersgroups = 1;
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for (int i = 0; i < numcharacters; ++i) {
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if (characters[i] == groupseparator) {
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charactersGroups[numcharactersgroups] = i + 1;
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++numcharactersgroups;
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if (numcharactersgroups >= MAX_NUM_CHARACTERS_GROUPS) {
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break;
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}
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}
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}
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usbSleep(5);
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buttonUpdate();
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int charindex = strlen(text);
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int caret = 0;
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for (;;) {
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int entryindex = random32() % numcharacters;
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if (charindex >= maxtextlen)
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entryindex = findCharIndex(characters, CHAR_DONE, numcharacters,
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entryindex, entryindex < numcharacters / 2);
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entryindex = inputTextScroll(
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text, &charindex, maxtextlen, characters, width, entryindex,
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numcharacters, 9, 9, charactersGroups, numcharactersgroups, 2, &caret);
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if ((!requiredone || entryindex == INPUT_DONE) &&
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(allowempty || charindex > 0)) {
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return entryindex == INPUT_DONE;
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}
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}
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}
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@ -0,0 +1,35 @@
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/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __INPUT_H__
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#define __INPUT_H__
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#include <stdbool.h>
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#define INPUT_DONE -1
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void buttonWaitForYesUp(void);
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void requestOnDeviceTextInput(void);
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bool inputText(char *text, int maxtextlen, const char characters[],
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int numcharacters, char groupseparator, int width,
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bool requiredone, bool allowempty);
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#endif
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