SameBoy/Cocoa/GBTerminalTextFieldCell.m

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#import <Carbon/Carbon.h>
#import "GBTerminalTextFieldCell.h"
@interface GBTerminalTextView : NSTextView
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@property GB_gameboy_t *gb;
@end
@implementation GBTerminalTextFieldCell
{
GBTerminalTextView *field_editor;
}
- (NSTextView *)fieldEditorForView:(NSView *)controlView
{
if (field_editor) {
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field_editor.gb = self.gb;
return field_editor;
}
field_editor = [[GBTerminalTextView alloc] init];
[field_editor setFieldEditor:YES];
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field_editor.gb = self.gb;
return field_editor;
}
@end
@implementation GBTerminalTextView
{
NSMutableOrderedSet *lines;
NSUInteger current_line;
bool reverse_search_mode;
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NSRange auto_complete_range;
uintptr_t auto_complete_context;
}
- (instancetype)init
{
self = [super init];
if (!self) {
return NULL;
}
lines = [[NSMutableOrderedSet alloc] init];
return self;
}
- (void)moveUp:(id)sender
{
reverse_search_mode = false;
if (current_line != 0) {
current_line--;
[self setString:[lines objectAtIndex:current_line]];
}
else {
[self setSelectedRange:NSMakeRange(0, 0)];
NSBeep();
}
}
- (void)moveDown:(id)sender
{
reverse_search_mode = false;
if (current_line == [lines count]) {
[self setString:@""];
NSBeep();
return;
}
current_line++;
if (current_line == [lines count]) {
[self setString:@""];
}
else {
[self setString:[lines objectAtIndex:current_line]];
}
}
-(void)insertNewline:(id)sender
{
if ([self.string length]) {
NSString *string = [self.string copy];
[lines removeObject:string];
[lines addObject:string];
}
[super insertNewline:sender];
current_line = [lines count];
reverse_search_mode = false;
}
- (void)keyDown:(NSEvent *)event
{
if (event.keyCode == kVK_ANSI_R && (event.modifierFlags & NSEventModifierFlagDeviceIndependentFlagsMask) == NSEventModifierFlagControl) {
if ([lines count] == 0) {
NSBeep();
return;
}
if (!reverse_search_mode) {
[self selectAll:self];
current_line = [lines count] - 1;
}
else {
if (current_line != 0) {
current_line--;
}
else {
NSBeep();
}
}
if (self.string.length) {
[self updateReverseSearch];
}
else {
[self setNeedsDisplay:YES];
reverse_search_mode = true;
}
}
else {
[super keyDown:event];
}
}
- (void) updateReverseSearch
{
NSUInteger old_line = current_line;
reverse_search_mode = false;
NSString *substring = [self.string substringWithRange:self.selectedRange];
do {
NSString *line = [lines objectAtIndex:current_line];
NSRange range = [line rangeOfString:substring];
if (range.location != NSNotFound) {
self.string = line;
[self setSelectedRange:range];
reverse_search_mode = true;
return;
}
} while (current_line--);
current_line = old_line;
reverse_search_mode = true;
NSBeep();
}
- (void) insertText:(NSString *)string replacementRange:(NSRange)range
{
if (reverse_search_mode) {
range = self.selectedRange;
self.string = [[self.string substringWithRange:range] stringByAppendingString:string];
[self selectAll:nil];
[self updateReverseSearch];
}
else {
[super insertText:string replacementRange:range];
}
}
-(void)deleteBackward:(id)sender
{
if (reverse_search_mode && self.string.length) {
NSRange range = self.selectedRange;
range.length--;
self.string = [self.string substringWithRange:range];
if (range.length) {
[self selectAll:nil];
[self updateReverseSearch];
}
else {
reverse_search_mode = true;
current_line = [lines count] - 1;
}
}
else {
[super deleteBackward:sender];
}
}
-(void)setSelectedRanges:(NSArray<NSValue *> *)ranges affinity:(NSSelectionAffinity)affinity stillSelecting:(BOOL)stillSelectingFlag
{
reverse_search_mode = false;
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auto_complete_context = 0;
[super setSelectedRanges:ranges affinity:affinity stillSelecting:stillSelectingFlag];
}
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- (BOOL)resignFirstResponder
{
reverse_search_mode = false;
return [super resignFirstResponder];
}
-(void)drawRect:(NSRect)dirtyRect
{
[super drawRect:dirtyRect];
if (reverse_search_mode && [super string].length == 0) {
NSMutableDictionary *attributes = [self.typingAttributes mutableCopy];
NSColor *color = [attributes[NSForegroundColorAttributeName] colorWithAlphaComponent:0.5];
[attributes setObject:color forKey:NSForegroundColorAttributeName];
[[[NSAttributedString alloc] initWithString:@"Reverse search..." attributes:attributes] drawAtPoint:NSMakePoint(2, 0)];
}
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}
/* Todo: lazy design, make it use a delegate instead of having a gb reference*/
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- (void)insertTab:(id)sender
{
if (auto_complete_context == 0) {
NSRange selection = self.selectedRange;
if (selection.length) {
[self delete:nil];
}
auto_complete_range = NSMakeRange(selection.location, 0);
}
char *substring = strdup([self.string substringToIndex:auto_complete_range.location].UTF8String);
uintptr_t context = auto_complete_context;
char *completion = GB_debugger_complete_substring(self.gb, substring, &context);
free(substring);
if (completion) {
NSString *ns_completion = @(completion);
free(completion);
if (!ns_completion) {
goto error;
}
self.selectedRange = auto_complete_range;
auto_complete_range.length = ns_completion.length;
[self replaceCharactersInRange:self.selectedRange withString:ns_completion];
auto_complete_context = context;
return;
}
error:
auto_complete_context = context;
NSBeep();
}
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@end