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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2014 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU General Public License, as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version. Please see the file LICENSE-GPL for details.
*
* Web Page: http://mielke.cc/brltty/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#include "cmd_queue.h"
#include "cmd_toggle.h"
#include "cmd_utils.h"
#include "brl_cmds.h"
#include "prefs.h"
#include "scr.h"
#include "alert.h"
#include "brltty.h"
static ToggleResult
toggleSetting (
unsigned char *setting, int command,
AlertIdentifier offAlert,
AlertIdentifier onAlert
) {
const int bit = 1;
int bits = *setting? bit: 0;
ToggleResult result = toggleBit(&bits, bit, command, offAlert, onAlert);
*setting = (bits & bit)? bit: 0;
return result;
}
static ToggleResult
toggleFeatureSetting (unsigned char *setting, int command) {
return toggleSetting(setting, command, ALERT_TOGGLE_OFF, ALERT_TOGGLE_ON);
}
static ToggleResult
toggleModeSetting (unsigned char *setting, int command) {
return toggleSetting(setting, command, ALERT_NONE, ALERT_NONE);
}
static int
handleToggleCommands (int command, void *data) {
switch (command & BRL_MSK_CMD) {
case BRL_CMD_SKPIDLNS:
toggleFeatureSetting(&prefs.skipIdenticalLines, command);
break;
case BRL_CMD_SKPBLNKWINS:
toggleFeatureSetting(&prefs.skipBlankWindows, command);
break;
case BRL_CMD_SLIDEWIN:
toggleFeatureSetting(&prefs.slidingWindow, command);
break;
case BRL_CMD_SIXDOTS:
toggleFeatureSetting(&prefs.textStyle, command);
break;
case BRL_CMD_CSRSIZE:
toggleFeatureSetting(&prefs.cursorStyle, command);
break;
case BRL_CMD_CSRVIS:
toggleFeatureSetting(&prefs.showCursor, command);
break;
case BRL_CMD_CSRBLINK:
toggleFeatureSetting(&prefs.blinkingCursor, command);
break;
case BRL_CMD_ATTRVIS:
toggleFeatureSetting(&prefs.showAttributes, command);
break;
case BRL_CMD_ATTRBLINK:
toggleFeatureSetting(&prefs.blinkingAttributes, command);
break;
case BRL_CMD_CAPBLINK:
toggleFeatureSetting(&prefs.blinkingCapitals, command);
break;
case BRL_CMD_AUTOREPEAT:
toggleFeatureSetting(&prefs.autorepeat, command);
break;
case BRL_CMD_BRLUCDOTS:
toggleFeatureSetting(&prefs.brailleInputMode, command);
break;
case BRL_CMD_TUNES:
toggleFeatureSetting(&prefs.alertTunes, command); /* toggle sound on/off */
break;
case BRL_CMD_AUTOSPEAK:
toggleFeatureSetting(&prefs.autospeak, command);
break;
case BRL_CMD_ASPK_SEL_LINE:
toggleFeatureSetting(&prefs.autospeakSelectedLine, command);
break;
case BRL_CMD_ASPK_SEL_CHAR:
toggleFeatureSetting(&prefs.autospeakSelectedCharacter, command);
break;
case BRL_CMD_ASPK_INS_CHARS:
toggleFeatureSetting(&prefs.autospeakInsertedCharacters, command);
break;
case BRL_CMD_ASPK_DEL_CHARS:
toggleFeatureSetting(&prefs.autospeakDeletedCharacters, command);
break;
case BRL_CMD_ASPK_REP_CHARS:
toggleFeatureSetting(&prefs.autospeakReplacedCharacters, command);
break;
case BRL_CMD_ASPK_CMP_WORDS:
toggleFeatureSetting(&prefs.autospeakCompletedWords, command);
break;
case BRL_CMD_SHOW_CURR_LOCN:
toggleFeatureSetting(&prefs.showSpeechCursor, command);
break;
case BRL_CMD_INFO:
if ((prefs.statusPosition == spNone) || haveStatusCells()) {
toggleModeSetting(&infoMode, command);
} else {
ToggleResult result = toggleModeSetting(&textMaximized, command);
if (result > TOGGLE_SAME) reconfigureWindow();
}
break;
case BRL_CMD_DISPMD:
toggleModeSetting(&ses->displayMode, command);
break;
case BRL_CMD_CSRHIDE:
toggleModeSetting(&ses->hideCursor, command);
break;
case BRL_CMD_CSRTRK:
toggleSetting(&ses->trackCursor, command, ALERT_CURSOR_UNLINKED, ALERT_CURSOR_LINKED);
if (ses->trackCursor) {
#ifdef ENABLE_SPEECH_SUPPORT
if (spk.track.isActive && (scr.number == spk.track.screenNumber)) {
spk.track.speechLocation = SPK_LOC_NONE;
} else
#endif /* ENABLE_SPEECH_SUPPORT */
{
trackCursor(1);
}
}
break;
case BRL_CMD_FREEZE: {
unsigned char setting;
if (isMainScreen()) {
setting = 0;
} else if (isFrozenScreen()) {
setting = 1;
} else {
alert(ALERT_COMMAND_REJECTED);
break;
}
switch (toggleSetting(&setting, command, ALERT_SCREEN_UNFROZEN, ALERT_SCREEN_FROZEN)) {
case TOGGLE_OFF:
deactivateFrozenScreen();
break;
case TOGGLE_ON:
if (!activateFrozenScreen()) alert(ALERT_COMMAND_REJECTED);
break;
default:
break;
}
break;
}
default:
return 0;
}
return 1;
}
int
addToggleCommands (void) {
return pushCommandHandler("toggle", KTB_CTX_DEFAULT,
handleToggleCommands, NULL, NULL);
}
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