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// LocalFileViewController.m

// Coding_iOS

// Created by Ease on 15/9/22.

#import <QuickLook/QuickLook.h>

#import "LocalFileViewController.h"

#import "Coding_NetAPIManager.h"

#import "WebContentManager.h"

#import "BasicPreviewItem.h"

@interface LocalFileViewController ()<QLPreviewControllerDataSource, QLPreviewControllerDelegate, UIDocumentInteractionControllerDelegate, UIWebViewDelegate>

@property (strong, nonatomic) QLPreviewController *previewController;

@property (nonatomic, strong) UIDocumentInteractionController *docInteractionController;

@property (strong, nonatomic) UIWebView *contentWebView;

@property (strong, nonatomic) UIActivityIndicatorView *activityIndicator;

@property (strong, nonatomic) NSString *fileName, *fileType;

@end

@implementation LocalFileViewController

- (void)setFileUrl:(NSURL *)fileUrl{

_fileUrl = fileUrl;

if (_fileUrl.path.length > 0) {

NSArray *valueList = [[[self.fileUrl.path componentsSeparatedByString:@"/"] lastObject] componentsSeparatedByString:@"|||"];

_fileName = valueList[0];

_fileType = [[[_fileName componentsSeparatedByString:@"."] lastObject] lowercaseString];

}

- (UIDocumentInteractionController *)docInteractionController{

if (_docInteractionController == nil){

_docInteractionController = [UIDocumentInteractionController interactionControllerWithURL:self.fileUrl];

}

return _docInteractionController;

}

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view.

self.title = self.fileName;

[self.navigationItem setRightBarButtonItem:[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"share_Nav"] style:UIBarButtonItemStylePlain target:self action:@selector(rightNavBtnClicked)] animated:NO];

if ([self.fileType isEqualToString:@"md"]

|| [self.fileType isEqualToString:@"html"]

|| [self.fileType isEqualToString:@"txt"]

|| [self.fileType isEqualToString:@"plist"]){

[self loadWebView:self.fileUrl];

}else if ([QLPreviewController canPreviewItem:self.fileUrl]) {

[self showDiskFile:self.fileUrl];

}else {

[self.view configBlankPage:EaseBlankPageTypeFileTypeCannotSupport hasData:NO hasError:NO reloadButtonBlock:nil];

}

- (void)rightNavBtnClicked{

[self openByOtherApp];

}

- (void)openByOtherApp{

[self.docInteractionController presentOpenInMenuFromBarButtonItem:self.navigationItem.rightBarButtonItem animated:YES];

}

#pragma mark HandleData

- (void)loadWebView:(NSURL *)fileUrl{

self.previewController.view.hidden = YES;

if (!_contentWebView) {

//用webView显示内容

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

_contentWebView.delegate = self;

_contentWebView.backgroundColor = [UIColor clearColor];

_contentWebView.opaque = NO;

_contentWebView.scalesPageToFit = YES;

//webview加载指示

_activityIndicator = [[UIActivityIndicatorView alloc]

initWithActivityIndicatorStyle:

UIActivityIndicatorViewStyleGray];

_activityIndicator.hidesWhenStopped = YES;

[_activityIndicator setCenter:CGPointMake(CGRectGetWidth(_contentWebView.frame)/2, CGRectGetHeight(_contentWebView.frame)/2)];

[_contentWebView addSubview:_activityIndicator];

[self.view addSubview:_contentWebView];

[_contentWebView mas_makeConstraints:^(MASConstraintMaker *make) {

make.top.left.right.bottom.equalTo(self.view);

}];

}

if ([self.fileType isEqualToString:@"md"]){

NSString *mdStr = [NSString stringWithContentsOfURL:fileUrl encoding:NSUTF8StringEncoding error:nil];

[self.activityIndicator startAnimating];

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

[self.activityIndicator stopAnimating];

NSString *htmlStr;

htmlStr = data? data: @"加载失败";

NSString *contentStr = [WebContentManager markdownPatternedWithContent:htmlStr];

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

}];

}else if ([self.fileType isEqualToString:@"html"]){

NSString* htmlString = [NSString stringWithContentsOfURL:fileUrl encoding:NSUTF8StringEncoding error:nil];

[self.contentWebView loadHTMLString:htmlString baseURL:nil];

}else if ([self.fileType isEqualToString:@"plist"]

|| [self.fileType isEqualToString:@"txt"]){

NSData *fileData = [NSData dataWithContentsOfURL:fileUrl];

[self.contentWebView loadData:fileData MIMEType:@"text/text" textEncodingName:@"UTF-8" baseURL:fileUrl];

}else{

[self.contentWebView loadRequest:[NSURLRequest requestWithURL:fileUrl]];

}

self.contentWebView.hidden = NO;

}

- (void)showDiskFile:(NSURL *)fileUrl{

self.contentWebView.hidden = YES;

if (!self.previewController) {

QLPreviewController* preview = [[QLPreviewController alloc] init];

preview.dataSource = self;

preview.delegate = self;

[self.view addSubview:preview.view];

[preview.view mas_makeConstraints:^(MASConstraintMaker *make) {

make.top.left.right.bottom.equalTo(self.view);

}];

self.previewController = preview;

}

self.previewController.view.hidden = NO;

}

#pragma mark - QLPreviewControllerDataSource

- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller{

NSInteger num = 0;

if (self.fileUrl) {

num = 1;

}

return num;

}

- (id <QLPreviewItem>)previewController:(QLPreviewController *)controller previewItemAtIndex:(NSInteger)index{

return [BasicPreviewItem itemWithUrl:self.fileUrl];

}

@end