added files via upload

Tweaks/FLEX/Editing/ArgumentInputViews/FLEXArgumentInputStringView.m

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+//
+//  FLEXArgumentInputStringView.m
+//  Flipboard
+//
+//  Created by Ryan Olson on 6/28/14.
+//  Copyright (c) 2020 FLEX Team. All rights reserved.
+//
+
+#import "FLEXArgumentInputStringView.h"
+#import "FLEXRuntimeUtility.h"
+
+@implementation FLEXArgumentInputStringView
+
+- (instancetype)initWithArgumentTypeEncoding:(const char *)typeEncoding {
+    self = [super initWithArgumentTypeEncoding:typeEncoding];
+    if (self) {
+        FLEXTypeEncoding type = typeEncoding[0];
+        if (type == FLEXTypeEncodingConst) {
+            // A crash here would mean an invalid type encoding string
+            type = typeEncoding[1];
+        }
+
+        // Selectors don't need a multi-line text box
+        if (type == FLEXTypeEncodingSelector) {
+            self.targetSize = FLEXArgumentInputViewSizeSmall;
+        } else {
+            self.targetSize = FLEXArgumentInputViewSizeLarge;
+        }
+    }
+    return self;
+}
+
+- (void)setInputValue:(id)inputValue {
+    if ([inputValue isKindOfClass:[NSString class]]) {
+        self.inputTextView.text = inputValue;
+    } else if ([inputValue isKindOfClass:[NSValue class]]) {
+        NSValue *value = (id)inputValue;
+        NSParameterAssert(strlen(value.objCType) == 1);
+
+        // C-String or SEL from NSValue
+        FLEXTypeEncoding type = value.objCType[0];
+        if (type == FLEXTypeEncodingConst) {
+            // A crash here would mean an invalid type encoding string
+            type = value.objCType[1];
+        }
+
+        if (type == FLEXTypeEncodingCString) {
+            self.inputTextView.text = @((const char *)value.pointerValue);
+        } else if (type == FLEXTypeEncodingSelector) {
+            self.inputTextView.text = NSStringFromSelector((SEL)value.pointerValue);
+        }
+    }
+}
+
+- (id)inputValue {
+    NSString *text = self.inputTextView.text;
+    // Interpret empty string as nil. We loose the ability to set empty string as a string value,
+    // but we accept that tradeoff in exchange for not having to type quotes for every string.
+    if (!text.length) {
+        return nil;
+    }
+
+    // Case: C-strings and SELs
+    if (self.typeEncoding.length <= 2) {
+        FLEXTypeEncoding type = [self.typeEncoding characterAtIndex:0];
+        if (type == FLEXTypeEncodingConst) {
+            // A crash here would mean an invalid type encoding string
+            type = [self.typeEncoding characterAtIndex:1];
+        }
+
+        if (type == FLEXTypeEncodingCString || type == FLEXTypeEncodingSelector) {
+            const char *encoding = self.typeEncoding.UTF8String;
+            SEL selector = NSSelectorFromString(text);
+            return [NSValue valueWithBytes:&selector objCType:encoding];
+        }
+    }
+
+    // Case: NSStrings
+    return self.inputTextView.text.copy;
+}
+
+// TODO: Support using object address for strings, as in the object arg view.
+
++ (BOOL)supportsObjCType:(const char *)type withCurrentValue:(id)value {
+    NSParameterAssert(type);
+    unsigned long len = strlen(type);
+
+    BOOL isConst = type[0] == FLEXTypeEncodingConst;
+    NSInteger i = isConst ? 1 : 0;
+
+    BOOL typeIsString = strcmp(type, FLEXEncodeClass(NSString)) == 0;
+    BOOL typeIsCString = len <= 2 && type[i] == FLEXTypeEncodingCString;
+    BOOL typeIsSEL = len <= 2 && type[i] == FLEXTypeEncodingSelector;
+    BOOL valueIsString = [value isKindOfClass:[NSString class]];
+
+    BOOL typeIsPrimitiveString = typeIsSEL || typeIsCString;
+    BOOL typeIsSupported = typeIsString || typeIsCString || typeIsSEL;
+
+    BOOL valueIsNSValueWithCorrectType = NO;
+    if ([value isKindOfClass:[NSValue class]]) {
+        NSValue *v = (id)value;
+        len = strlen(v.objCType);
+        if (len == 1) {
+            FLEXTypeEncoding type = v.objCType[i];
+            if (type == FLEXTypeEncodingCString && typeIsCString) {
+                valueIsNSValueWithCorrectType = YES;
+            } else if (type == FLEXTypeEncodingSelector && typeIsSEL) {
+                valueIsNSValueWithCorrectType = YES;
+            }
+        }
+    }
+
+    if (!value && typeIsSupported) {
+        return YES;
+    }
+
+    if (typeIsString && valueIsString) {
+        return YES;
+    }
+
+    // Primitive strings can be input as NSStrings or NSValues
+    if (typeIsPrimitiveString && (valueIsString || valueIsNSValueWithCorrectType)) {
+        return YES;
+    }
+
+    return NO;
+}
+
+@end