#import "EditCodeViewController.h"

#import "Coding_NetAPIManager.h"

#import "WebContentManager.h"

#import "EaseMarkdownTextView.h"

#import "WebViewController.h"

#import "UIViewController+BackButtonHandler.h"

@interface EditCodeViewController ()<UIWebViewDelegate>

@property (strong, nonatomic) UISegmentedControl *segmentedControl;

@property (assign, nonatomic) NSInteger curIndex;

@property (strong, nonatomic) UIWebView *preview;

@property (strong, nonatomic) UIActivityIndicatorView *activityIndicator;

@property (strong, nonatomic) EaseMarkdownTextView *editView;

@implementation EditCodeViewController

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view.

self.view.backgroundColor = kColorTableBG;

if (!_segmentedControl) {

_segmentedControl = ({

UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:@[@"编辑", @"预览"]];

[segmentedControl setWidth:80 forSegmentAtIndex:0];

[segmentedControl setWidth:80 forSegmentAtIndex:1];

[segmentedControl setTitleTextAttributes:@{

NSFontAttributeName: [UIFont systemFontOfSize:16],

NSForegroundColorAttributeName: [UIColor whiteColor]

}

forState:UIControlStateSelected];

[segmentedControl setTitleTextAttributes:@{

NSFontAttributeName: [UIFont systemFontOfSize:16],

NSForegroundColorAttributeName: kColorNavTitle

} forState:UIControlStateNormal];

[segmentedControl addTarget:self action:@selector(segmentedControlSelected:) forControlEvents:UIControlEventValueChanged];

segmentedControl;

});

self.navigationItem.titleView = _segmentedControl;

}

[self.navigationItem setRightBarButtonItem:[UIBarButtonItem itemWithBtnTitle:@"提交" target:self action:@selector(saveBtnClicked)] animated:YES];

self.navigationItem.rightBarButtonItem.enabled = NO;

[[[[NSNotificationCenter defaultCenter] rac_addObserverForName:UIKeyboardWillChangeFrameNotification object:nil] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(NSNotification *aNotification) {

if (self.editView) {

NSDictionary* userInfo = [aNotification userInfo];

CGRect keyboardEndFrame = [[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];

self.editView.contentInset = UIEdgeInsetsMake(0, 0, CGRectGetHeight(keyboardEndFrame), 0);

self.editView.scrollIndicatorInsets = self.editView.contentInset;

}

}];

self.curIndex = 0;

}

- (void)viewDidAppear:(BOOL)animated{

[super viewDidAppear:animated];

//禁用屏幕左滑返回手势

if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {

self.navigationController.interactivePopGestureRecognizer.enabled = NO;

}

}

- (void)viewDidDisappear:(BOOL)animated {

[super viewDidDisappear:animated];

//开启屏幕左滑返回手势

if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {

self.navigationController.interactivePopGestureRecognizer.enabled = YES;

}

}

- (BOOL)navigationShouldPopOnBackButton{

if (![_myCodeFile.editData isEqualToString:_myCodeFile.file.data]) {

__weak typeof(self) weakSelf = self;

[[UIAlertController ea_alertViewWithTitle:@"提示" message:@"如果不保存，更改将丢失，是否确认返回？" buttonTitles:@[@"确认返回"] destructiveTitle:nil cancelTitle:@"取消" andDidDismissBlock:^(UIAlertAction *action, NSInteger index) {

if (index == 0) {

[weakSelf.navigationController popViewControllerAnimated:YES];

}

}] show];

return NO;

}else{

return YES;

}

}

#pragma mark UISegmentedControl

- (void)segmentedControlSelected:(id)sender{

UISegmentedControl *segmentedControl = (UISegmentedControl *)sender;

self.curIndex = segmentedControl.selectedSegmentIndex;

if (self.curIndex == 0) {

}else{

[_editView resignFirstResponder];

}

}

#pragma mark index_view

- (void)setCurIndex:(NSInteger)curIndex{

_curIndex = curIndex;

if (_segmentedControl.selectedSegmentIndex != curIndex) {

[_segmentedControl setSelectedSegmentIndex:_curIndex];

}

if (_curIndex == 0) {

[self loadEditView];

}else{

[self loadPreview];

}

}

- (void)loadEditView{

if (!_editView) {

_editView = [[EaseMarkdownTextView alloc] initWithFrame:self.view.bounds];

_editView.curProject = self.myProject;

_editView.backgroundColor = [UIColor clearColor];

_editView.textColor = kColor666;

_editView.font = [UIFont systemFontOfSize:16];

_editView.textContainerInset = UIEdgeInsetsMake(15, kPaddingLeftWidth - 5, 8, kPaddingLeftWidth - 5);

_editView.placeholder = @"编辑代码";

_editView.text = _myCodeFile.file.data;

[self.view addSubview:_editView];

[_editView mas_makeConstraints:^(MASConstraintMaker *make) {

make.edges.equalTo(self.view);

}];

@weakify(self);

[_editView.rac_textSignal subscribeNext:^(NSString *value) {

@strongify(self);

self.myCodeFile.editData = value;

self.navigationItem.rightBarButtonItem.enabled = ![value isEqualToString:self.myCodeFile.file.data];

}];

}

_editView.hidden = NO;

_preview.hidden = YES;

}

- (void)loadPreview

{

if (!_preview) {

_preview = [[UIWebView alloc] initWithFrame:self.view.bounds];

_preview.delegate = self;

_preview.backgroundColor = [UIColor clearColor];

_preview.opaque = NO;

_preview.scalesPageToFit = YES;

//webview加载指示

_activityIndicator = [[UIActivityIndicatorView alloc]

initWithActivityIndicatorStyle:

UIActivityIndicatorViewStyleGray];

_activityIndicator.hidesWhenStopped = YES;

[_preview addSubview:_activityIndicator];

[self.view addSubview:_preview];

[_preview mas_makeConstraints:^(MASConstraintMaker *make) {

make.edges.equalTo(self.view);

}];

[_activityIndicator mas_makeConstraints:^(MASConstraintMaker *make) {

make.center.equalTo(_preview);

}];

}

_preview.hidden = NO;

_editView.hidden = YES;

[self previewLoadMDData];

}

- (void)previewLoadMDData{

if ([_myCodeFile.file.lang isEqualToString:@"markdown"]) {

NSString *mdStr = self.editView? self.editView.text : _myCodeFile.file.data;

@weakify(self);

[[Coding_NetAPIManager sharedManager] request_MDHtmlStr_WithMDStr:mdStr inProject:self.myProject andBlock:^(id data, NSError *error) {

@strongify(self);

NSString *htmlStr = data? data : error.description;

NSString *contentStr = [WebContentManager markdownPatternedWithContent:htmlStr];

[self.preview loadHTMLString:contentStr baseURL:nil];

}];

}else{

NSString *contentStr = [WebContentManager codePatternedWithContent:_myCodeFile isEdit:YES];

[self.preview loadHTMLString:contentStr baseURL:nil];

}

}

#pragma mark nav_btn

- (void)saveBtnClicked{

if ([_myCodeFile.editData isEqualToString:_myCodeFile.file.data]) {

[NSObject showHudTipStr:@"文件无改动"];

return;

}

[NSObject showHUDQueryStr:@"正在保存..."];

[[Coding_NetAPIManager sharedManager] request_EditCodeFile:_myCodeFile withPro:_myProject andBlock:^(id data, NSError *error) {

[NSObject hideHUDQuery];

if (data) {

if (self.savedSucessBlock) {

self.savedSucessBlock();

}

[self.navigationController popViewControllerAnimated:YES];

}

}];

}

#pragma mark UIWebViewDelegate

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{

DebugLog(@"strLink=[%@]",request.URL.absoluteString);

NSString *strLink = request.URL.absoluteString;

if ([strLink rangeOfString:@"about:blank"].location != NSNotFound) {

return YES;

} else {

[self analyseLinkStr:strLink];

return NO;

}

}

- (void)webViewDidStartLoad:(UIWebView *)webView{

[_activityIndicator startAnimating];

}

- (void)webViewDidFinishLoad:(UIWebView *)webView{

[_activityIndicator stopAnimating];

}

- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error{

if([error code] == NSURLErrorCancelled)

return;

else{

DebugLog(@"%@", error.description);

[NSObject showError:error];

}

}

#pragma mark analyseLinkStr

- (void)analyseLinkStr:(NSString *)linkStr

{

if (linkStr.length <= 0) {

return;

}

UIViewController *vc = [BaseViewController analyseVCFromLinkStr:linkStr];

if (vc) {

[self.navigationController pushViewController:vc animated:YES];

}else{

// 跳转去网页

WebViewController *webVc = [WebViewController webVCWithUrlStr:linkStr];

[self.navigationController pushViewController:webVc animated:YES];

}

}