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VT100Terminal.m
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VT100Terminal.m
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#import "VT100Terminal.h"
#include "sixel.h"
#import "DebugLogging.h"
#import "iTerm2SharedARC-Swift.h"
#import "iTermAdvancedSettingsModel.h"
#import "iTermParser.h"
#import "iTermPromise.h"
#import "iTermTerminfo.h"
#import "iTermURLStore.h"
#import "NSArray+iTerm.h"
#import "NSColor+iTerm.h"
#import "NSData+iTerm.h"
#import "NSDictionary+iTerm.h"
#import "NSObject+iTerm.h"
#import "NSStringITerm.h"
#import "NSURL+iTerm.h"
#import "VT100DCSParser.h"
#import "VT100Output.h"
#import "VT100Parser.h"
#import <apr-1/apr_base64.h> // for xterm's base64 decoding (paste64)
#include <curses.h>
#include <term.h>
NSString *const kGraphicRenditionBoldKey = @"Bold";
NSString *const kGraphicRenditionBlinkKey = @"Blink";
NSString *const kGraphicRenditionInvisibleKey = @"Invisible";
NSString *const kGraphicRenditionUnderlineKey = @"Underline";
NSString *const kGraphicRenditionStrikethroughKey = @"Strikethrough";
NSString *const kGraphicRenditionUnderlineStyle = @"Underline Style";
NSString *const kGraphicRenditionReversedKey = @"Reversed";
NSString *const kGraphicRenditionFaintKey = @"Faint";
NSString *const kGraphicRenditionItalicKey = @"Italic";
NSString *const kGraphicRenditionForegroundColorCodeKey = @"FG Color/Red";
NSString *const kGraphicRenditionForegroundGreenKey = @"FG Green";
NSString *const kGraphicRenditionForegroundBlueKey = @"FG Blue";
NSString *const kGraphicRenditionForegroundModeKey = @"FG Mode";
NSString *const kGraphicRenditionBackgroundColorCodeKey = @"BG Color/Red";
NSString *const kGraphicRenditionBackgroundGreenKey = @"BG Green";
NSString *const kGraphicRenditionBackgroundBlueKey = @"BG Blue";
NSString *const kGraphicRenditionBackgroundModeKey = @"BG Mode";
NSString *const kGraphicRenditionHasUnderlineColorKey = @"Has underline color";
NSString *const kGraphicRenditionUnderlineColorCodeKey = @"Underline Color/Red";
NSString *const kGraphicRenditionUnderlineGreenKey = @"Underline Green";
NSString *const kGraphicRenditionUnderlineBlueKey = @"Underline Blue";
NSString *const kGraphicRenditionUnderlineModeKey = @"Underline Mode";
NSString *const kSavedCursorPositionKey = @"Position";
NSString *const kSavedCursorCharsetKey = @"Charset";
NSString *const kSavedCursorLineDrawingArrayKey = @"Line Drawing Flags";
NSString *const kSavedCursorGraphicRenditionKey = @"Graphic Rendition";
NSString *const kSavedCursorOriginKey = @"Origin";
NSString *const kSavedCursorWraparoundKey = @"Wraparound";
NSString *const kSavedCursorUnicodeVersion = @"Unicode Version";
NSString *const kSavedCursorProtectedMode = @"Protected Mode";
NSString *const kTerminalStateTermTypeKey = @"Term Type";
NSString *const kTerminalStateAnswerBackStringKey = @"Answerback String";
NSString *const kTerminalStateStringEncodingKey = @"String Encoding";
NSString *const kTerminalStateCanonicalEncodingKey = @"Canonical String Encoding";
NSString *const kTerminalStateReportFocusKey = @"Report Focus";
NSString *const kTerminalStateReverseVideoKey = @"Reverse Video";
NSString *const kTerminalStateOriginModeKey = @"Origin Mode";
NSString *const kTerminalStateMoreFixKey = @"More-Fix";
NSString *const kTerminalStateWraparoundModeKey = @"Wraparound Mode";
NSString *const kTerminalStateReverseWraparoundModeKey = @"Reverse Wraparound Mode";
NSString *const kTerminalStateIsAnsiKey = @"Is ANSI";
NSString *const kTerminalStateAutorepeatModeKey = @"Autorepeat Mode";
NSString *const kTerminalStateInsertModeKey = @"Insert Mode";
NSString *const kTerminalStateSendReceiveModeKey = @"Send/Receive Mode";
NSString *const kTerminalStateCharsetKey = @"Charset";
NSString *const kTerminalStateMouseModeKey = @"Mouse Mode";
NSString *const kTerminalStatePreviousMouseModeKey = @"Previous Mouse Mode";
NSString *const kTerminalStateMouseFormatKey = @"Mouse Format";
NSString *const kTerminalStateCursorModeKey = @"Cursor Mode";
NSString *const kTerminalStateKeypadModeKey = @"Keypad Mode";
NSString *const kTerminalStateAllowKeypadModeKey = @"Allow Keypad Mode";
NSString *const kTerminalStateAllowPasteBracketing = @"Allow Paste Bracketing";
NSString *const kTerminalStateBracketedPasteModeKey = @"Bracketed Paste Mode";
NSString *const kTerminalStateAnsiModeKey = @"ANSI Mode";
NSString *const kTerminalStateNumLockKey = @"Numlock";
NSString *const kTerminalStateGraphicRenditionKey = @"Graphic Rendition";
NSString *const kTerminalStateMainSavedCursorKey = @"Main Saved Cursor";
NSString *const kTerminalStateAltSavedCursorKey = @"Alt Saved Cursor";
NSString *const kTerminalStateAllowColumnModeKey = @"Allow Column Mode";
NSString *const kTerminalStateColumnModeKey = @"Column Mode";
NSString *const kTerminalStateDisableSMCUPAndRMCUPKey = @"Disable Alt Screen";
NSString *const kTerminalStateSoftAlternateScreenModeKey = @"Soft Alternate Screen Mode";
NSString *const kTerminalStateInCommandKey = @"In Command";
NSString *const kTerminalStateUnicodeVersionStack = @"Unicode Version Stack";
NSString *const kTerminalStateURL_DEPRECATED = @"URL"; // This was stored as an NSURL (which didn't work at all) and getting an URL code from an URL is hard (because it depends on the order of state restoration) and ultimately it's not that important to preserve this bit of state so it has been abandoned.
NSString *const kTerminalStateURLParams_DEPRECATED = @"URL Params";
NSString *const kTerminalStateReportKeyUp = @"Report Key Up";
NSString *const kTerminalStateMetaSendsEscape = @"Meta Sends Escape";
NSString *const kTerminalStateSendModifiers = @"Send Modifiers";
NSString *const kTerminalStateKeyReportingFlags = @"Key Reporting Flags";
NSString *const kTerminalStateKeyReportingModeStack_Deprecated = @"Key Reporting Mode Stack"; // deprecated
NSString *const kTerminalStateKeyReportingModeStack_Main = @"Main Key Reporting Mode Stack";
NSString *const kTerminalStateKeyReportingModeStack_Alternate = @"Alternate Key Reporting Mode Stack";
NSString *const kTerminalStateResizeNotifications = @"Resize Notifications";
NSString *const kTerminalStateSynchronizedUpdates = @"Synchronized Updates";
NSString *const kTerminalStatePreserveScreenOnDECCOLM = @"Preserve Screen On DECCOLM";
NSString *const kTerminalStateSavedColors = @"Saved Colors"; // For XTPUSHCOLORS/XTPOPCOLORS
NSString *const kTerminalStateAlternateScrollMode = @"Alternate Scroll Mode";
NSString *const kTerminalStateSGRStack = @"SGR Stack";
NSString *const kTerminalStateDECSACE = @"DECSACE";
NSString *const kTerminalStateProtectedMode = @"Protected Mode";
NSString *const kTerminalStateBlockID = @"Block ID";
NSString *const kTerminalStateLiteralMode = @"Literal Mode";
NSString *const kTerminalStateVTLevel = @"VT Level";
static const size_t VT100TerminalMaxSGRStackEntries = 10;
typedef NS_ENUM(NSUInteger, VT100TerminalCopyMode) {
VT100TerminalCopyModeNone,
VT100TerminalCopyModeMonolithic,
VT100TerminalCopyModeSegmented,
};
@interface VT100Terminal ()
@property(nonatomic, assign) BOOL reverseVideo;
@property(nonatomic, assign) BOOL originMode;
@property(nonatomic, assign) BOOL moreFix;
@property(nonatomic, assign) BOOL isAnsi;
@property(nonatomic, assign) BOOL autorepeatMode;
@property(nonatomic, assign) int charset;
@property(nonatomic, assign) BOOL allowColumnMode;
@property(nonatomic, assign) BOOL columnMode; // YES=132 Column, NO=80 Column
@property(nonatomic, assign) BOOL disableSmcupRmcup;
@property(nonatomic, strong) NSURL *url;
@property(nonatomic, strong) NSString *urlParams;
@property(nonatomic, readonly) VT100TerminalCopyMode copyMode;
@property(nonatomic, copy) NSString *uidForCopyMode; // Applies in segmented modes.
@end
#define NUM_CHARSETS 4
typedef struct {
VT100GridCoord position;
int charset;
BOOL lineDrawing[NUM_CHARSETS];
VT100GraphicRendition graphicRendition;
BOOL origin;
BOOL wraparound;
NSInteger unicodeVersion;
VT100TerminalProtectedMode protectedMode;
} VT100SavedCursor;
typedef enum {
VT100SGRStackAttributeBold = 1,
VT100SGRStackAttributeFaint = 2,
VT100SGRStackAttributeItalicized = 3,
VT100SGRStackAttributeUnderlined = 4,
VT100SGRStackAttributeBlink = 5,
VT100SGRStackAttributeInverse = 7,
VT100SGRStackAttributeInvisible = 8,
VT100SGRStackAttributeStrikethrough = 9,
VT100SGRStackAttributeDoubleUnderline = 21,
VT100SGRStackAttributeForegroundColor = 30,
VT100SGRStackAttributeBackgroundColor = 31,
} VT100SGRStackAttribute;
typedef struct {
VT100GraphicRendition graphicRendition;
VT100SGRStackAttribute elements[VT100CSIPARAM_MAX];
int numElements;
} VT100TerminalSGRStackEntry;
@interface VT100Terminal()
@property (nonatomic, strong, readwrite) NSMutableArray<NSNumber *> *sendModifiers;
@property (nonatomic, readwrite) VT100TerminalKeyReportingFlags keyReportingFlags;
@end
@implementation VT100Terminal {
// In FinalTerm command mode (user is at the prompt typing a command).
BOOL inCommand_;
BOOL numLock_; // YES=ON, NO=OFF, default=YES;
VT100SavedCursor mainSavedCursor_;
VT100SavedCursor altSavedCursor_;
NSMutableArray *_unicodeVersionStack;
// URL of the current hypertext link (while between OSC 8 marking the start
// of a link and empty OSC 8 marking the end of a link), or nil if not in a
// hypertext link.
iTermURL *_currentURL;
BOOL _softAlternateScreenMode;
NSMutableArray<NSNumber *> *_mainKeyReportingModeStack;
NSMutableArray<NSNumber *> *_alternateKeyReportingModeStack;
VT100SavedColors *_savedColors;
VT100TerminalSGRStackEntry _sgrStack[VT100TerminalMaxSGRStackEntries];
int _sgrStackSize;
BOOL _isScreenLike;
BOOL _receivingMultipartFile;
NSNumber *_currentLiteral;
iTermEmulationLevel _vtLevel;
VT100TerminalKeyReportingFlags _keyReportingFlags;
}
@synthesize receivingFile = receivingFile_;
@synthesize graphicRendition = graphicRendition_;
#define DEL 0x7f
// character attributes
#define VT100CHARATTR_ALLOFF 0
#define VT100CHARATTR_BOLD 1
#define VT100CHARATTR_FAINT 2
#define VT100CHARATTR_ITALIC 3
#define VT100CHARATTR_UNDERLINE 4
#define VT100CHARATTR_BLINK 5
#define VT100CHARATTR_REVERSE 7
#define VT100CHARATTR_INVISIBLE 8
#define VT100CHARATTR_STRIKETHROUGH 9
// xterm additions
#define VT100CHARATTR_DOUBLE_UNDERLINE 21
#define VT100CHARATTR_NORMAL 22
#define VT100CHARATTR_NOT_ITALIC 23
#define VT100CHARATTR_NOT_UNDERLINE 24
#define VT100CHARATTR_STEADY 25
#define VT100CHARATTR_POSITIVE 27
#define VT100CHARATTR_VISIBLE 28
#define VT100CHARATTR_NOT_STRIKETHROUGH 29
typedef enum {
COLORCODE_BLACK = 0,
COLORCODE_RED = 1,
COLORCODE_GREEN = 2,
COLORCODE_YELLOW = 3,
COLORCODE_BLUE = 4,
COLORCODE_MAGENTA = 5,
COLORCODE_WATER = 6,
COLORCODE_WHITE = 7,
COLORCODE_256 = 8,
} colorCode;
// Color constants
// Color codes for 8-color mode. Black and white are the limits; other codes can be constructed
// similarly.
#define VT100CHARATTR_FG_BASE 30
#define VT100CHARATTR_BG_BASE 40
#define VT100CHARATTR_FG_BLACK (VT100CHARATTR_FG_BASE + COLORCODE_BLACK)
#define VT100CHARATTR_FG_WHITE (VT100CHARATTR_FG_BASE + COLORCODE_WHITE)
#define VT100CHARATTR_FG_256 (VT100CHARATTR_FG_BASE + COLORCODE_256)
#define VT100CHARATTR_FG_DEFAULT (VT100CHARATTR_FG_BASE + 9)
#define VT100CHARATTR_BG_BLACK (VT100CHARATTR_BG_BASE + COLORCODE_BLACK)
#define VT100CHARATTR_BG_WHITE (VT100CHARATTR_BG_BASE + COLORCODE_WHITE)
#define VT100CHARATTR_BG_256 (VT100CHARATTR_BG_BASE + COLORCODE_256)
#define VT100CHARATTR_BG_DEFAULT (VT100CHARATTR_BG_BASE + 9)
#define VT100CHARATTR_UNDERLINE_COLOR 58
#define VT100CHARATTR_UNDERLINE_COLOR_DEFAULT 59
// Color codes for 16-color mode. Black and white are the limits; other codes can be constructed
// similarly.
#define VT100CHARATTR_FG_HI_BASE 90
#define VT100CHARATTR_BG_HI_BASE 100
#define VT100CHARATTR_FG_HI_BLACK (VT100CHARATTR_FG_HI_BASE + COLORCODE_BLACK)
#define VT100CHARATTR_FG_HI_WHITE (VT100CHARATTR_FG_HI_BASE + COLORCODE_WHITE)
#define VT100CHARATTR_BG_HI_BLACK (VT100CHARATTR_BG_HI_BASE + COLORCODE_BLACK)
#define VT100CHARATTR_BG_HI_WHITE (VT100CHARATTR_BG_HI_BASE + COLORCODE_WHITE)
// Prevents runaway memory usage
static const int kMaxScreenColumns = 4096;
static const int kMaxScreenRows = 4096;
#pragma mark - Instance methods
- (instancetype)init {
self = [super init];
if (self) {
_output = [[VT100Output alloc] init];
_encoding = _canonicalEncoding = NSASCIIStringEncoding;
_parser = [[VT100Parser alloc] init];
_parser.encoding = _encoding;
_wraparoundMode = YES;
_reverseWraparoundMode = NO;
_autorepeatMode = YES;
graphicRendition_.fgColorCode = ALTSEM_DEFAULT;
graphicRendition_.fgColorMode = ColorModeAlternate;
graphicRendition_.bgColorCode = ALTSEM_DEFAULT;
graphicRendition_.bgColorMode = ColorModeAlternate;
_mouseMode = MOUSE_REPORTING_NONE;
_previousMouseMode = MOUSE_REPORTING_NORMAL;
_mouseFormat = MOUSE_FORMAT_XTERM;
_allowKeypadMode = YES;
self.allowPasteBracketing = YES;
_sendModifiers = [@[ @-1, @-1, @-1, @-1, @-1 ] mutableCopy];
_keyReportingFlags = 0;
_mainKeyReportingModeStack = [[NSMutableArray alloc] init];
_alternateKeyReportingModeStack = [[NSMutableArray alloc] init];
numLock_ = YES;
[self saveCursor]; // initialize save area
_unicodeVersionStack = [[NSMutableArray alloc] init];
_savedColors = [[VT100SavedColors alloc] init];
_vtLevel = iTermEmulationLevel500;
[self updateDefaultChar];
}
return self;
}
- (void)stopReceivingFile {
DLog(@"%@", [NSThread callStackSymbols]);
receivingFile_ = NO;
}
- (void)setEncoding:(NSStringEncoding)encoding {
[self setEncoding:encoding canonical:YES];
}
- (void)setEncoding:(NSStringEncoding)encoding canonical:(BOOL)canonical {
self.dirty = YES;
if (canonical) {
_canonicalEncoding = encoding;
}
_encoding = encoding;
_parser.encoding = encoding;
}
- (void)setTermType:(NSString *)termtype {
self.dirty = YES;
DLog(@"setTermType:%@", termtype);
_termType = [termtype copy];
_isScreenLike = [termtype containsString:@"screen"] || [termtype containsString:@"tmux"];
self.allowKeypadMode = [_termType rangeOfString:@"xterm"].location != NSNotFound;
_output.termType = _termType;
if ([termtype isEqualToString:@"VT100"]) {
_vtLevel = iTermEmulationLevel100;
} else if ([termtype hasPrefix:@"VT2"]) {
_vtLevel = iTermEmulationLevel200;
} else if ([termtype hasPrefix:@"VT3"]) {
_vtLevel = iTermEmulationLevel300;
} else if ([termtype hasPrefix:@"VT4"]) {
_vtLevel = iTermEmulationLevel400;
} else {
_vtLevel = iTermEmulationLevel500;
}
_output.emulationLevel = _vtLevel;
DLog(@"Set emulation level to %@ based on termtype %@", @(_vtLevel), termtype);
self.isAnsi = [_termType rangeOfString:@"ANSI"
options:NSCaseInsensitiveSearch | NSAnchoredSearch ].location != NSNotFound;
[_delegate terminalTypeDidChange];
}
- (void)setAnswerBackString:(NSString *)s {
self.dirty = YES;
s = [s stringByExpandingVimSpecialCharacters];
_answerBackString = [s copy];
}
- (void)setForeground24BitColor:(NSColor *)color {
self.dirty = YES;
graphicRendition_.fgColorCode = color.redComponent * 255.0;
graphicRendition_.fgGreen = color.greenComponent * 255.0;
graphicRendition_.fgBlue = color.blueComponent * 255.0;
graphicRendition_.fgColorMode = ColorMode24bit;
[self updateDefaultChar];
}
- (void)setForegroundColor:(int)fgColorCode alternateSemantics:(BOOL)altsem {
self.dirty = YES;
graphicRendition_.fgColorCode = fgColorCode;
graphicRendition_.fgColorMode = (altsem ? ColorModeAlternate : ColorModeNormal);
[self updateDefaultChar];
}
- (void)setBackgroundColor:(int)bgColorCode alternateSemantics:(BOOL)altsem {
self.dirty = YES;
graphicRendition_.bgColorCode = bgColorCode;
graphicRendition_.bgColorMode = (altsem ? ColorModeAlternate : ColorModeNormal);
[self updateDefaultChar];
}
- (void)setSoftAlternateScreenMode:(BOOL)softAlternateScreenMode {
if (softAlternateScreenMode == _softAlternateScreenMode) {
return;
}
self.dirty = YES;
_softAlternateScreenMode = softAlternateScreenMode;
[self.delegate terminalSoftAlternateScreenModeDidChange];
}
- (void)setReverseVideo:(BOOL)reverseVideo {
self.dirty = YES;
_reverseVideo = reverseVideo;
}
- (void)setOriginMode:(BOOL)originMode {
DLog(@"setOriginMode:%@\n%@", @(originMode), [NSThread callStackSymbols]);
self.dirty = YES;
_originMode = originMode;
}
- (void)setMoreFix:(BOOL)moreFix {
self.dirty = YES;
_moreFix = moreFix;
}
- (void)resetCharset {
self.charset = 0;
for (int i = 0; i < NUM_CHARSETS; i++) {
[_delegate terminalSetCharset:i toLineDrawingMode:NO];
}
}
- (void)commonReset {
DLog(@"TERMINAL RESET");
self.dirty = YES;
self.cursorMode = NO;
_reverseVideo = NO;
_originMode = NO;
_moreFix = NO;
self.wraparoundMode = YES;
self.reverseWraparoundMode = NO;
self.autorepeatMode = YES;
self.keypadMode = NO;
self.reportKeyUp = NO;
self.metaSendsEscape = NO;
self.alternateScrollMode = NO;
self.synchronizedUpdates = NO;
self.sendResizeNotifications = NO;
self.preserveScreenOnDECCOLM = NO;
self.insertMode = NO;
self.sendReceiveMode = NO;
self.bracketedPasteMode = NO;
self.charset = 0;
[self resetGraphicRendition];
self.mouseMode = MOUSE_REPORTING_NONE;
self.mouseFormat = MOUSE_FORMAT_XTERM;
[self saveCursor]; // reset saved text attributes
[_delegate terminalMouseModeDidChangeTo:_mouseMode];
[_delegate terminalSetUseColumnScrollRegion:NO];
self.reportFocus = NO;
self.protectedMode = VT100TerminalProtectedModeNone;
self.allowColumnMode = NO;
receivingFile_ = NO;
_copyMode = VT100TerminalCopyModeNone;
_encoding = _canonicalEncoding;
_parser.encoding = _canonicalEncoding;
_vtLevel = iTermEmulationLevel500;
_output.emulationLevel = _vtLevel;
for (int i = 0; i < NUM_CHARSETS; i++) {
mainSavedCursor_.lineDrawing[i] = NO;
altSavedCursor_.lineDrawing[i] = NO;
}
[_mainKeyReportingModeStack removeAllObjects];
[_alternateKeyReportingModeStack removeAllObjects];
[self resetSavedCursorPositions];
[_delegate terminalShowPrimaryBuffer];
self.softAlternateScreenMode = NO;
_keyReportingFlags = 0;
[self resetSendModifiersWithSideEffects:NO];
[self.delegate terminalDidChangeSendModifiers];
}
- (void)resetSendModifiersWithSideEffects:(BOOL)sideEffects {
DLog(@"reset send modifiers with side effects=%@", @(sideEffects));
self.dirty = YES;
for (int i = 0; i < NUM_MODIFIABLE_RESOURCES; i++) {
_sendModifiers[i] = @-1;
}
_keyReportingFlags = 0;
self.dirty = YES;
[_mainKeyReportingModeStack removeAllObjects];
[_alternateKeyReportingModeStack removeAllObjects];
if (sideEffects) {
[self.delegate terminalDidChangeSendModifiers];
}
}
- (void)gentleReset {
[self commonReset];
[_delegate terminalSetCursorVisible:YES];
}
- (void)resetForReason:(VT100TerminalResetReason)reason {
DLog(@"Reset for reason %@", @(reason));
const BOOL userInitiated = (reason == VT100TerminalResetReasonUserRequest);
const BOOL controlSequence = (reason == VT100TerminalResetReasonControlSequence);
[self resetAllowingResize:YES
preservePrompt:userInitiated
resetParser:userInitiated
preserveSSH:userInitiated || controlSequence
modifyContent:YES];
}
- (void)resetForSSH {
[self resetAllowingResize:NO
preservePrompt:YES
resetParser:NO
preserveSSH:YES
modifyContent:NO];
}
- (void)resetForRelaunch {
[self finishResettingParser:YES
preserveSSH:NO
preservePrompt:NO
modifyContent:NO];
}
- (void)setWidth:(int)width
preserveScreen:(BOOL)preserveScreen
updateRegions:(BOOL)updateRegions
moveCursorTo:(VT100GridCoord)newCursorCoord
completion:(void (^)(void))completion {
[_delegate terminalSetWidth:width
preserveScreen:preserveScreen
updateRegions:updateRegions
moveCursorTo:newCursorCoord
completion:completion];
}
- (void)resetAllowingResize:(BOOL)canResize
preservePrompt:(BOOL)preservePrompt
resetParser:(BOOL)resetParser
preserveSSH:(BOOL)preserveSSH
modifyContent:(BOOL)modifyContent {
if (canResize && _columnMode) {
__weak __typeof(self) weakSelf = self;
[self setWidth:80
preserveScreen:NO
updateRegions:NO
moveCursorTo:VT100GridCoordMake(-1, -1)
completion:^{
[weakSelf finishResettingParser:resetParser
preserveSSH:preserveSSH
preservePrompt:preservePrompt
modifyContent:modifyContent];
}];
return;
}
[self finishResettingParser:resetParser
preserveSSH:preserveSSH
preservePrompt:preservePrompt
modifyContent:modifyContent];
}
- (void)finishResettingParser:(BOOL)resetParser
preserveSSH:(BOOL)preserveSSH
preservePrompt:(BOOL)preservePrompt
modifyContent:(BOOL)modifyContent {
self.columnMode = NO;
[self commonReset];
if (resetParser) {
if (preserveSSH) {
[_parser resetExceptSSH];
} else {
[_parser reset];
}
}
[_delegate terminalResetPreservingPrompt:preservePrompt modifyContent:modifyContent];
}
- (void)resetForTmuxUnpause {
[self finishResettingParser:YES
preserveSSH:YES
preservePrompt:NO
modifyContent:YES];
}
- (void)setWraparoundMode:(BOOL)mode {
if (mode != _wraparoundMode) {
self.dirty = YES;
_wraparoundMode = mode;
[_delegate terminalWraparoundModeDidChangeTo:mode];
}
}
- (void)setReverseWraparoundMode:(BOOL)reverseWraparoundMode {
self.dirty = YES;
_reverseWraparoundMode = reverseWraparoundMode;
}
- (void)setIsAnsi:(BOOL)isAnsi {
self.dirty = YES;
_isAnsi = isAnsi;
}
- (void)setAutorepeatMode:(BOOL)autorepeatMode {
self.dirty = YES;
_autorepeatMode = autorepeatMode;
}
- (void)setSendReceiveMode:(BOOL)sendReceiveMode {
self.dirty = YES;
_sendReceiveMode = sendReceiveMode;
}
- (void)setCharset:(int)charset {
self.dirty = YES;
_charset = charset;
}
- (void)setCursorMode:(BOOL)cursorMode {
self.dirty = YES;
_cursorMode = cursorMode;
_output.cursorMode = cursorMode;
}
- (void)setMetaSendsEscape:(BOOL)metaSendsEscape {
self.dirty = YES;
_metaSendsEscape = metaSendsEscape;
}
- (void)setAlternateScrollMode:(BOOL)alternateScrollMode {
self.dirty = YES;
_alternateScrollMode = alternateScrollMode;
}
- (void)setDecsaceRectangleMode:(BOOL)decsaceRectangleMode {
self.dirty = YES;
_decsaceRectangleMode = decsaceRectangleMode;
}
- (void)setAllowPasteBracketing:(BOOL)allowPasteBracketing {
self.dirty = YES;
_allowPasteBracketing = allowPasteBracketing;
}
- (void)setAllowColumnMode:(BOOL)allowColumnMode {
self.dirty = YES;
_allowColumnMode = allowColumnMode;
}
- (void)setColumnMode:(BOOL)columnMode {
self.dirty = YES;
_columnMode = columnMode;
}
- (void)setDisableSmcupRmcup:(BOOL)value {
self.dirty = YES;
_disableSmcupRmcup = value;
}
- (void)setPreserveScreenOnDECCOLM:(BOOL)preserveScreenOnDECCOLM {
self.dirty = YES;
_preserveScreenOnDECCOLM = preserveScreenOnDECCOLM;
}
- (void)setMouseFormat:(MouseFormat)mouseFormat {
self.dirty = YES;
_mouseFormat = mouseFormat;
_output.mouseFormat = mouseFormat;
}
- (void)setKeypadMode:(BOOL)mode {
[self forceSetKeypadMode:(mode && self.allowKeypadMode)];
}
- (void)forceSetKeypadMode:(BOOL)mode {
self.dirty = YES;
_keypadMode = mode;
_output.keypadMode = _keypadMode;
[self.delegate terminalApplicationKeypadModeDidChange:mode];
}
- (void)setAllowKeypadMode:(BOOL)allow {
self.dirty = YES;
_allowKeypadMode = allow;
if (!allow) {
self.keypadMode = NO;
}
}
- (void)setReportKeyUp:(BOOL)reportKeyUp {
if (reportKeyUp == _reportKeyUp) {
return;
}
self.dirty = YES;
_reportKeyUp = reportKeyUp;
[self.delegate terminalReportKeyUpDidChange:reportKeyUp];
}
- (void)toggleKeyReportingFlag:(VT100TerminalKeyReportingFlags)flag {
if (self.currentKeyReportingModeStack.count) {
const int value = self.currentKeyReportingModeStack.lastObject.intValue;
[self.currentKeyReportingModeStack removeLastObject];
[self.currentKeyReportingModeStack addObject:@(value ^ flag)];
} else {
_keyReportingFlags ^= flag;
}
[self.delegate terminalKeyReportingFlagsDidChange];
}
- (VT100TerminalKeyReportingFlags)keyReportingFlags {
if (self.currentKeyReportingModeStack.count) {
return self.currentKeyReportingModeStack.lastObject.intValue;
}
return _keyReportingFlags;
}
- (NSMutableArray<NSNumber *> *)currentKeyReportingModeStack {
if ([self.delegate terminalIsInAlternateScreenMode]) {
return _alternateKeyReportingModeStack;
}
return _mainKeyReportingModeStack;
}
- (void)updateExternalAttributes {
if (!graphicRendition_.hasUnderlineColor && _currentURL == nil && self.currentBlockID == nil && _currentLiteral == nil) {
_externalAttributes = nil;
return;
}
_externalAttributes = [[iTermExternalAttribute alloc] initWithUnderlineColor:graphicRendition_.underlineColor
url:_currentURL
blockID:self.currentBlockID
controlCode:_currentLiteral];
}
- (void)setCurrentBlockID:(NSString *)currentBlockID {
_currentBlockID = [currentBlockID copy];
[self updateExternalAttributes];
}
- (screen_char_t)foregroundColorCode {
screen_char_t result = { 0 };
if (graphicRendition_.reversed) {
if (graphicRendition_.bgColorMode == ColorModeAlternate &&
graphicRendition_.bgColorCode == ALTSEM_DEFAULT) {
result.foregroundColor = ALTSEM_REVERSED_DEFAULT;
} else {
result.foregroundColor = graphicRendition_.bgColorCode;
}
result.fgGreen = graphicRendition_.bgGreen;
result.fgBlue = graphicRendition_.bgBlue;
result.foregroundColorMode = graphicRendition_.bgColorMode;
} else {
result.foregroundColor = graphicRendition_.fgColorCode;
result.fgGreen = graphicRendition_.fgGreen;
result.fgBlue = graphicRendition_.fgBlue;
result.foregroundColorMode = graphicRendition_.fgColorMode;
}
result.bold = graphicRendition_.bold;
result.faint = graphicRendition_.faint;
result.italic = graphicRendition_.italic;
result.underline = graphicRendition_.underline;
result.strikethrough = graphicRendition_.strikethrough;
result.underlineStyle = graphicRendition_.underlineStyle;
result.blink = graphicRendition_.blink;
result.invisible = graphicRendition_.invisible;
result.image = NO;
result.virtualPlaceholder = NO;
result.inverse = graphicRendition_.reversed;
result.guarded = _protectedMode != VT100TerminalProtectedModeNone;
result.unused = 0;
return result;
}
- (screen_char_t)backgroundColorCode {
screen_char_t result = { 0 };
if (graphicRendition_.reversed) {
if (graphicRendition_.fgColorMode == ColorModeAlternate &&
graphicRendition_.fgColorCode == ALTSEM_DEFAULT) {
result.backgroundColor = ALTSEM_REVERSED_DEFAULT;
} else {
result.backgroundColor = graphicRendition_.fgColorCode;
}
result.bgGreen = graphicRendition_.fgGreen;
result.bgBlue = graphicRendition_.fgBlue;
result.backgroundColorMode = graphicRendition_.fgColorMode;
} else {
result.backgroundColor = graphicRendition_.bgColorCode;
result.bgGreen = graphicRendition_.bgGreen;
result.bgBlue = graphicRendition_.bgBlue;
result.backgroundColorMode = graphicRendition_.bgColorMode;
}
return result;
}
- (screen_char_t)foregroundColorCodeReal {
screen_char_t result = { 0 };
result.foregroundColor = graphicRendition_.fgColorCode;
result.fgGreen = graphicRendition_.fgGreen;
result.fgBlue = graphicRendition_.fgBlue;
result.foregroundColorMode = graphicRendition_.fgColorMode;
result.bold = graphicRendition_.bold;
result.faint = graphicRendition_.faint;
result.italic = graphicRendition_.italic;
result.underline = graphicRendition_.underline;
result.strikethrough = graphicRendition_.strikethrough;
result.underlineStyle = graphicRendition_.underlineStyle;
result.blink = graphicRendition_.blink;
result.invisible = graphicRendition_.invisible;
result.inverse = graphicRendition_.reversed;
result.guarded = _protectedMode != VT100TerminalProtectedModeNone;
result.unused = 0;
return result;
}
- (screen_char_t)backgroundColorCodeReal {
screen_char_t result = { 0 };
result.backgroundColor = graphicRendition_.bgColorCode;
result.bgGreen = graphicRendition_.bgGreen;
result.bgBlue = graphicRendition_.bgBlue;
result.backgroundColorMode = graphicRendition_.bgColorMode;
return result;
}
- (void)setInsertMode:(BOOL)mode {
if (_insertMode != mode) {
self.dirty = YES;
_insertMode = mode;
[_delegate terminalInsertModeDidChangeTo:mode];
}
}
- (void)toggleAlternateScreen {
// The delegate tracks "hard" alternate screen mode, which is what this affects. We only track
// soft alternate screen mode. No point tracking it in two places.
const BOOL useAlternateScreenMode = ![self.delegate terminalIsInAlternateScreenMode];
if (useAlternateScreenMode) {
[_delegate terminalShowAltBuffer];
} else {
[_delegate terminalShowPrimaryBuffer];
}
self.softAlternateScreenMode = useAlternateScreenMode;
}
- (void)executeDecSetReset:(VT100Token *)token {
assert(token->type == VT100CSI_DECSET ||
token->type == VT100CSI_DECRST);
BOOL mode = (token->type == VT100CSI_DECSET);
for (int i = 0; i < token.csi->count; i++) {
switch (token.csi->p[i]) {
case -1:
// This was removed by translating from screen -> xterm for tmux mode.
break;
case 1:
self.cursorMode = mode;
break;
case 2:
// This was never implemented and we don't generally support switching emulation modes.
// In practice this doesn't seem to provide any benefit to modern users, and it can
// cause harm. For example, `CSI 2 l` puts the terminal in vt52 mode which is not
// useful except for maybe legacy systems. Getting this code on a modern system
// appears to break everything from the user's POV.
break;
case 3: // DECCOLM
if (self.allowColumnMode) {
const BOOL changed = (self.columnMode != mode);
self.columnMode = mode;
VT100GridCoord coord = VT100GridCoordMake(self.delegate.terminalCursorX,
self.delegate.terminalCursorY);
[self setWidth:(self.columnMode ? 132 : 80)
preserveScreen:!changed || self.preserveScreenOnDECCOLM
updateRegions:changed
moveCursorTo:VT100GridCoordMake(MIN(coord.x, self.delegate.terminalSizeInCells.width),
coord.y)
completion:nil];
}
break;
case 4:
// Smooth vs jump scrolling. Not supported.
break;
case 5:
self.reverseVideo = mode;
[_delegate terminalNeedsRedraw];
break;
case 6:
self.originMode = mode;
[_delegate terminalMoveCursorToX:1 y:1];
break;
case 7:
self.wraparoundMode = mode;
break;
case 8:
self.autorepeatMode = mode;
break;
case 9:
// TODO: This should send mouse x&y on button press.
break;
case 12:
[_delegate terminalSetCursorBlinking:mode];
break;
case 20:
// This used to be the setter for "line mode", but it wasn't used and it's not
// supported by xterm. Seemed to have something to do with CR vs LF.
break;
case 25:
[_delegate terminalSetCursorVisible:mode];
break;
case 40:
self.allowColumnMode = mode;
break;
case 41:
self.moreFix = mode;
break;
case 45:
self.reverseWraparoundMode = mode;
break;
case 66:
self.keypadMode = mode;
break;
case 69:
if (_vtLevel >= iTermEmulationLevel400) {
[_delegate terminalSetUseColumnScrollRegion:mode];
} else {
DLog(@"vtlevel %@ denied", @(_vtLevel));
}
break;
// TODO: 80 - DECSDM
case 95: // DECNCSM
if (_vtLevel >= iTermEmulationLevel500) {
self.preserveScreenOnDECCOLM = mode;
} else {
DLog(@"vtlevel %@ denied", @(_vtLevel));
}
break;
case 1000:
// case 1001:
// TODO: MOUSE_REPORTING_HIGHLIGHT not implemented.
case 1002:
case 1003:
if (mode) {
self.mouseMode = token.csi->p[i] - 1000;
} else {
self.mouseMode = MOUSE_REPORTING_NONE;
}
[_delegate terminalMouseModeDidChangeTo:_mouseMode];
break;
case 1004:
self.reportFocus = mode && [_delegate terminalFocusReportingAllowed];
break;
case 1005:
if (mode) {
self.mouseFormat = MOUSE_FORMAT_XTERM_EXT;
} else {
self.mouseFormat = MOUSE_FORMAT_XTERM;
}
break;
case 1006:
if (mode) {
self.mouseFormat = MOUSE_FORMAT_SGR;
} else {
self.mouseFormat = MOUSE_FORMAT_XTERM;
}
break;
case 1007:
if (!mode || [self.delegate terminalAllowAlternateMouseScroll]) {
self.alternateScrollMode = mode;
}
break;
case 1015:
if (mode) {
self.mouseFormat = MOUSE_FORMAT_URXVT;
} else {
self.mouseFormat = MOUSE_FORMAT_XTERM;
}
break;
case 1016:
if (mode) {
self.mouseFormat = MOUSE_FORMAT_SGR_PIXEL;
} else {
self.mouseFormat = MOUSE_FORMAT_XTERM;
}
break;
case 1036:
self.metaSendsEscape = mode;
break;
case 1337:
self.reportKeyUp = mode;
break;
// Here's how xterm behaves:
// main -> alt alt -> main main -> main alt -> alt
// +----------------------------+-------------------------------+----------------+---------------------------+
// 47 | switch | switch | noop | noop |
// 1047 | switch | clear, switch | noop | noop |
// 1049 | save cursor, switch, clear | switch, restore cursor | restore cursor | save cursor, clear screen |
case 47:
// alternate screen buffer mode
if (!self.disableSmcupRmcup) {
if (mode) {