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BEAM-on-device mobile framework for Elixir

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mob ios MobNode.h
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ios/MobNode.h 

// MobNode.h — Data model node for the Mob UI tree (iOS SwiftUI layer).

// Created and mutated by mob_nif.m NIFs; read by MobRootView.swift for rendering.

// No BEAM headers here — kept clean for Swift import via bridging header.



#pragma once



#import <UIKit/UIKit.h>

#import <Foundation/Foundation.h>



typedef NS_ENUM(NSInteger, MobNodeType) {

    MobNodeTypeColumn,

    MobNodeTypeRow,

    MobNodeTypeLabel,

    MobNodeTypeButton,

    MobNodeTypeScroll,

    MobNodeTypeBox,

    MobNodeTypeDivider,

    MobNodeTypeSpacer,

    MobNodeTypeProgress,

    MobNodeTypeTextField,

    MobNodeTypeToggle,

    MobNodeTypeSlider,

    MobNodeTypeImage,

    MobNodeTypeLazyList,

    MobNodeTypeTabBar,

    MobNodeTypeVideo,

};



NS_ASSUME_NONNULL_BEGIN



@interface MobNode : NSObject



// Layout

@property (nonatomic) MobNodeType               nodeType;

@property (nonatomic, strong, nullable) UIColor* backgroundColor;

@property (nonatomic)                  CGFloat   padding;           // uniform; -1 if unset

@property (nonatomic)                  CGFloat   paddingTop;        // -1 = use uniform padding

@property (nonatomic)                  CGFloat   paddingRight;      // -1 = use uniform padding

@property (nonatomic)                  CGFloat   paddingBottom;     // -1 = use uniform padding

@property (nonatomic)                  CGFloat   paddingLeft;       // -1 = use uniform padding



// Text / Button

@property (nonatomic, copy,   nullable) NSString* text;

@property (nonatomic)                  CGFloat    textSize;

@property (nonatomic, strong, nullable) UIColor*  textColor;



// Tap

@property (nonatomic, copy, nullable) void (^onTap)(void);



// Value-bearing change callbacks (set by mob_nif.m; called by SwiftUI)

@property (nonatomic, copy, nullable) void (^onChangeStr)(NSString*);

@property (nonatomic, copy, nullable) void (^onChangeBool)(BOOL);

@property (nonatomic, copy, nullable) void (^onChangeFloat)(double);



// text_field

@property (nonatomic, copy, nullable) NSString* placeholder;

@property (nonatomic, copy, nonnull)  NSString* keyboardTypeStr;  // "default","number","decimal","email","phone","url"

@property (nonatomic, copy, nonnull)  NSString* returnKeyStr;     // "done","next","go","search","send"

@property (nonatomic, copy, nullable) void (^onFocus)(void);

@property (nonatomic, copy, nullable) void (^onBlur)(void);

@property (nonatomic, copy, nullable) void (^onSubmit)(void);

// toggle

@property (nonatomic) BOOL checked;

// slider

@property (nonatomic) CGFloat minValue;   // default 0.0

@property (nonatomic) CGFloat maxValue;   // default 1.0



// Divider

@property (nonatomic)                  CGFloat    thickness;   // default 1.0



// Scroll

@property (nonatomic, copy, nonnull)   NSString*  axis;          // "vertical" | "horizontal"

@property (nonatomic)                  BOOL       showIndicator; // default YES



// Spacer — fixedSize == 0 means fill available space

@property (nonatomic)                  CGFloat    fixedSize;



// Progress — NaN means indeterminate

@property (nonatomic)                  CGFloat    value;

@property (nonatomic, strong, nullable) UIColor*  color;       // track / indicator color



// Layout behaviour

@property (nonatomic) BOOL    fillWidth;    // fill parent width (default NO; button default YES)

@property (nonatomic) CGFloat cornerRadius; // rounded corners in pt (default 0)



// image

@property (nonatomic, copy,   nullable) NSString*  src;

@property (nonatomic, copy,   nonnull)  NSString*  contentModeStr;   // "fit" | "fill" | "stretch"

@property (nonatomic)                  CGFloat    fixedWidth;        // 0 = fill available

@property (nonatomic)                  CGFloat    fixedHeight;       // 0 = auto

@property (nonatomic, strong, nullable) UIColor*  placeholderColor;



// Typography

@property (nonatomic, copy, nullable) NSString* fontFamily;    // nil = system font

@property (nonatomic, copy, nonnull)  NSString* fontWeight;   // "regular","medium","semibold","bold","light","thin"

@property (nonatomic, copy, nonnull)  NSString* textAlign;    // "left","center","right"

@property (nonatomic)                 BOOL      italic;

@property (nonatomic)                 CGFloat   lineHeight;   // multiplier; 0 = default

@property (nonatomic)                 CGFloat   letterSpacing;



// Tab bar

@property (nonatomic, strong, nullable) NSArray*         tabDefs;       // array of NSDictionary, each with id/label/icon

@property (nonatomic, copy,   nullable) NSString*        activeTab;     // selected tab id

@property (nonatomic, copy,   nullable) void (^onTabSelect)(NSString*); // sends selected tab id as string



// Video player

@property (nonatomic) BOOL videoAutoplay;

@property (nonatomic) BOOL videoLoop;

@property (nonatomic) BOOL videoControls;



// Accessibility — set from the tap tag atom name; read by XCTest / ui_describe_all

@property (nonatomic, copy, nullable) NSString* accessibilityId;



// Children

@property (nonatomic, strong, nonnull) NSMutableArray<MobNode*>* children;



@end



NS_ASSUME_NONNULL_END