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101 lines
3.9 KiB
101 lines
3.9 KiB
//
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// FLEXPropertyEditorViewController.m
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// Flipboard
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//
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// Created by Ryan Olson on 5/20/14.
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// Copyright (c) 2014 Flipboard. All rights reserved.
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//
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#import "FLEXPropertyEditorViewController.h"
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#import "FLEXRuntimeUtility.h"
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#import "FLEXFieldEditorView.h"
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#import "FLEXArgumentInputView.h"
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#import "FLEXArgumentInputViewFactory.h"
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#import "FLEXArgumentInputSwitchView.h"
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@interface FLEXPropertyEditorViewController () <FLEXArgumentInputViewDelegate>
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@property (nonatomic, assign) objc_property_t property;
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@end
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@implementation FLEXPropertyEditorViewController
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- (id)initWithTarget:(id)target property:(objc_property_t)property
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{
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self = [super initWithTarget:target];
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if (self) {
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self.property = property;
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self.title = @"Property";
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}
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return self;
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}
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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self.fieldEditorView.fieldDescription = [FLEXRuntimeUtility fullDescriptionForProperty:self.property];
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id currentValue = [FLEXRuntimeUtility valueForProperty:self.property onObject:self.target];
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self.setterButton.enabled = [[self class] canEditProperty:self.property currentValue:currentValue];
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const char *typeEncoding = [[FLEXRuntimeUtility typeEncodingForProperty:self.property] UTF8String];
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FLEXArgumentInputView *inputView = [FLEXArgumentInputViewFactory argumentInputViewForTypeEncoding:typeEncoding];
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inputView.backgroundColor = self.view.backgroundColor;
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inputView.inputValue = [FLEXRuntimeUtility valueForProperty:self.property onObject:self.target];
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inputView.delegate = self;
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self.fieldEditorView.argumentInputViews = @[inputView];
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// Don't show a "set" button for switches - just call the setter immediately after the switch toggles.
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if ([inputView isKindOfClass:[FLEXArgumentInputSwitchView class]]) {
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self.navigationItem.rightBarButtonItem = nil;
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}
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}
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- (void)actionButtonPressed:(id)sender
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{
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[super actionButtonPressed:sender];
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id userInputObject = self.firstInputView.inputValue;
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NSArray *arguments = userInputObject ? @[userInputObject] : nil;
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SEL setterSelector = [FLEXRuntimeUtility setterSelectorForProperty:self.property];
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NSError *error = nil;
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[FLEXRuntimeUtility performSelector:setterSelector onObject:self.target withArguments:arguments error:&error];
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if (error) {
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NSString *title = @"Property Setter Failed";
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NSString *message = [error localizedDescription];
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UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
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[alert show];
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self.firstInputView.inputValue = [FLEXRuntimeUtility valueForProperty:self.property onObject:self.target];
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} else {
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// If the setter was called without error, pop the view controller to indicate that and make the user's life easier.
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// Don't do this for simulated taps on the action button (i.e. from switch/BOOL editors). The experience is weird there.
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if (sender) {
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[self.navigationController popViewControllerAnimated:YES];
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}
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}
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}
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- (void)getterButtonPressed:(id)sender
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{
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[super getterButtonPressed:sender];
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id returnedObject = [FLEXRuntimeUtility valueForProperty:self.property onObject:self.target];
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[self exploreObjectOrPopViewController:returnedObject];
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}
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- (void)argumentInputViewValueDidChange:(FLEXArgumentInputView *)argumentInputView
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{
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if ([argumentInputView isKindOfClass:[FLEXArgumentInputSwitchView class]]) {
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[self actionButtonPressed:nil];
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}
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}
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+ (BOOL)canEditProperty:(objc_property_t)property currentValue:(id)value
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{
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const char *typeEncoding = [[FLEXRuntimeUtility typeEncodingForProperty:property] UTF8String];
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BOOL canEditType = [FLEXArgumentInputViewFactory canEditFieldWithTypeEncoding:typeEncoding currentValue:value];
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BOOL isReadonly = [FLEXRuntimeUtility isReadonlyProperty:property];
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return canEditType && !isReadonly;
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}
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@end
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