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MVP implementation

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This commit is contained in:
William Brawner 2017-08-23 12:24:48 -05:00
parent e4ba6d39bc
commit 6369d29e1d
24 changed files with 953 additions and 478 deletions
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8
app/build.gradle
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@ -2,6 +2,9 @@ apply plugin: 'com.android.application'
apply plugin: 'me.tatarka.retrolambda' apply plugin: 'me.tatarka.retrolambda'
android { android {
configurations.all {
resolutionStrategy.force 'com.google.code.findbugs:jsr305:3.0.1'
}
packagingOptions { packagingOptions {
exclude 'META-INF/LICENSE-LGPL-2.1.txt' exclude 'META-INF/LICENSE-LGPL-2.1.txt'
exclude 'META-INF/LICENSE-LGPL-3.txt' exclude 'META-INF/LICENSE-LGPL-3.txt'
@ -49,9 +52,8 @@ dependencies {
compile 'io.reactivex.rxjava2:rxjava:2.1.0' compile 'io.reactivex.rxjava2:rxjava:2.1.0'
compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
compile 'com.jakewharton.rxbinding2:rxbinding-design:2.0.0' compile 'com.jakewharton.rxbinding2:rxbinding-design:2.0.0'
compile "android.arch.lifecycle:runtime:1.0.0-alpha5" compile 'com.google.dagger:dagger:2.11'
compile "android.arch.lifecycle:extensions:1.0.0-alpha5" annotationProcessor 'com.google.dagger:dagger-compiler:2.11'
testCompile 'junit:junit:4.12' testCompile 'junit:junit:4.12'
annotationProcessor "android.arch.lifecycle:compiler:1.0.0-alpha5"
annotationProcessor 'com.jakewharton:butterknife-compiler:8.7.0' annotationProcessor 'com.jakewharton:butterknife-compiler:8.7.0'
} }

3
app/src/main/AndroidManifest.xml
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@ -5,13 +5,14 @@
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.INTERNET" />
<application <application
android:name="com.wbrawner.simplemarkdown.MarkdownApplication"
android:allowBackup="true" android:allowBackup="true"
android:icon="@mipmap/ic_launcher" android:icon="@mipmap/ic_launcher"
android:label="@string/app_name" android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round" android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true" android:supportsRtl="true"
android:theme="@style/AppTheme"> android:theme="@style/AppTheme">
<activity android:name=".MainActivity"> <activity android:name=".view.activity.MainActivity">
<intent-filter> <intent-filter>
<action android:name="android.intent.action.MAIN"></action> <action android:name="android.intent.action.MAIN"></action>
<category android:name="android.intent.category.LAUNCHER"></category> <category android:name="android.intent.category.LAUNCHER"></category>

22
app/src/main/java/com/wbrawner/simplemarkdown/AppComponent.java Normal file
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@ -0,0 +1,22 @@
package com.wbrawner.simplemarkdown;
import com.wbrawner.simplemarkdown.view.activity.MainActivity;
import com.wbrawner.simplemarkdown.view.fragment.EditFragment;
import com.wbrawner.simplemarkdown.view.fragment.PreviewFragment;
import javax.inject.Singleton;
import dagger.Component;
/**
* Created by billy on 8/22/17.
*/
@Singleton
@Component(modules = { AppModule.class })
public interface AppComponent {
void inject(MarkdownApplication application);
void inject(MainActivity activity);
void inject(EditFragment fragment);
void inject(PreviewFragment fragment);
}

27
app/src/main/java/com/wbrawner/simplemarkdown/AppModule.java Normal file
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@ -0,0 +1,27 @@
package com.wbrawner.simplemarkdown;
import com.wbrawner.simplemarkdown.model.MarkdownFile;
import com.wbrawner.simplemarkdown.presentation.MarkdownPresenter;
import com.wbrawner.simplemarkdown.presentation.MarkdownPresenterImpl;
import javax.inject.Singleton;
import dagger.Module;
import dagger.Provides;
/**
* Created by billy on 8/22/17.
*/
@Module
public class AppModule {
@Provides
public MarkdownFile provideMarkdownFile() {
return new MarkdownFile();
}
@Provides @Singleton
public MarkdownPresenter provideMarkdownPresenter(MarkdownFile file) {
return new MarkdownPresenterImpl(file);
}
}

74
app/src/main/java/com/wbrawner/simplemarkdown/EditFragment.java
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@ -1,74 +0,0 @@
package com.wbrawner.simplemarkdown;
import android.arch.lifecycle.ViewModelProvider;
import android.arch.lifecycle.ViewModelProviders;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.content.FileProvider;
import android.support.v4.content.LocalBroadcastManager;
import android.text.Editable;
import android.text.Layout;
import android.text.TextWatcher;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.Toast;
import com.jakewharton.rxbinding2.widget.RxTextView;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import butterknife.BindView;
import butterknife.ButterKnife;
import io.reactivex.Observable;
import io.reactivex.Scheduler;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;
import static android.content.ContentValues.TAG;
public class EditFragment extends Fragment {
public static final String SAVE_ACTION = "com.wbrawner.simplemarkdown.ACTION_SAVE";
public static final String LOAD_ACTION = "com.wbrawner.simplemarkdown.ACTION_LOAD";
private MarkdownViewModel markdownViewModel;
@BindView(R.id.markdown_edit)
EditText markdownEditor;
public EditFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_edit, container, false);
ButterKnife.bind(this, view);
markdownViewModel = ViewModelProviders.of(getActivity()).get(MarkdownViewModel.class);
Observable<String> obs = RxTextView.textChanges(markdownEditor)
.debounce(50, TimeUnit.MILLISECONDS).map(editable -> editable.toString());
obs.subscribeOn(Schedulers.io());
obs.observeOn(AndroidSchedulers.mainThread());
obs.subscribe(data -> {
markdownViewModel.updateMarkdown(data);
});
return view;
}
}

65
app/src/main/java/com/wbrawner/simplemarkdown/FileUtils.java
View file

@ -1,65 +0,0 @@
package com.wbrawner.simplemarkdown;
import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
/**
* Created by billy on 7/27/2017.
*/
public class FileUtils {
public static final int WRITE_PERMISSION_REQUEST = 0;
public static final int OPEN_FILE_REQUEST = 1;
private Activity mContext;
public FileUtils(Activity context) {
mContext = context;
}
public boolean isExternalStorageWritable() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
return true;
}
return false;
}
public boolean isExternalStorageReadable() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state) ||
Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
return true;
}
return false;
}
public boolean isExternalStorageWriteable() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state) && checkWritePermission()) {
return true;
}
return false;
}
public boolean checkWritePermission() {
return (ContextCompat.checkSelfPermission(
mContext,
Manifest.permission.WRITE_EXTERNAL_STORAGE
) == PackageManager.PERMISSION_GRANTED);
}
public void requestWritePermissions() {
ActivityCompat.requestPermissions(
mContext,
new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
WRITE_PERMISSION_REQUEST
);
}
}

243
app/src/main/java/com/wbrawner/simplemarkdown/MainActivity.java
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@ -1,243 +0,0 @@
package com.wbrawner.simplemarkdown;
import android.Manifest;
import android.app.ProgressDialog;
import android.content.ActivityNotFoundException;
import android.content.ClipData;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Environment;
import android.support.annotation.Nullable;
import android.support.annotation.VisibleForTesting;
import android.support.design.widget.TabLayout;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.FileProvider;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v4.os.EnvironmentCompat;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.InputType;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SearchEvent;
import android.view.View;
import android.view.WindowManager;
import android.webkit.MimeTypeMap;
import android.widget.EditText;
import android.widget.Toast;
import java.io.File;
import butterknife.BindView;
import butterknife.ButterKnife;
public class MainActivity extends AppCompatActivity
implements ActivityCompat.OnRequestPermissionsResultCallback {
public static final String AUTHORITY = "com.wbrawner.simplemarkdown.fileprovider";
private static final int REQUEST_WRITE_STORAGE = 0;
private static File mFilesDir;
public static final int FRAGMENT_EDIT = 0;
public static final int FRAGMENT_PREVIEW = 1;
public static final int NUM_PAGES = 2;
@BindView(R.id.pager)
ViewPager pager;
@BindView(R.id.layout_tab)
TabLayout tabLayout;
private static final String TAG = MainActivity.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().setBackgroundDrawable(new ColorDrawable(0xFFFFFFFF));
ButterKnife.bind(this);
pager.setAdapter(
new EditPagerAdapter(getSupportFragmentManager(), MainActivity.this)
);
pager.setPageMargin(1);
pager.setPageMarginDrawable(R.color.colorAccent);
mFilesDir = getFilesDir();
Intent intent = getIntent();
if (intent != null && !intent.getAction().equals(Intent.ACTION_MAIN) && intent.getData() != null) {
Intent loadIntent = new Intent(EditFragment.LOAD_ACTION);
loadIntent.putExtra("fileUri", intent.getData().toString());
LocalBroadcastManager.getInstance(getApplicationContext())
.sendBroadcast(loadIntent);
}
if (getResources().getConfiguration().orientation
== Configuration.ORIENTATION_LANDSCAPE) {
tabLayout.setVisibility(View.GONE);
}
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE)
tabLayout.setVisibility(View.GONE);
else
tabLayout.setVisibility(View.VISIBLE);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_edit, menu);
return true;
}
// @Override
// public boolean onOptionsItemSelected(MenuItem item) {
// switch (item.getItemId()) {
// case R.id.action_save:
// //TODO: Create popup for file name
// AlertDialog.Builder builder = new AlertDialog.Builder(this);
// builder.setTitle(R.string.action_save);
//
// final EditText input = new EditText(this);
// input.setInputType(InputType.TYPE_CLASS_TEXT);
// input.setHint(R.string.hint_filename);
// input.setText(getFileName());
// builder.setView(input);
//
// builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
// @Override
// public void onClick(DialogInterface dialog, int which) {
// if (input.getText().length() > 0) {
// setFileName(input.getText().toString());
// requestSave(input.getText().toString());
// }
// }
// });
// builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
// @Override
// public void onClick(DialogInterface dialog, int which) {
// dialog.cancel();
// }
// });
//
// builder.show();
// break;
// case R.id.action_share:
// //TODO: Fix this
// File tmpFile = new File(getTempFilePath() + getFileName());
// if (!tmpFile.exists()) {
// Intent saveIntent = new Intent(EditFragment.SAVE_ACTION);
// saveIntent.putExtra("fileName", getTempFilePath() + getFileName());
// LocalBroadcastManager.getInstance(getApplicationContext())
// .sendBroadcast(saveIntent);
// }
// Uri fileUri = FileProvider.getUriForFile(MainActivity.this, AUTHORITY, tmpFile);
// if (fileUri != null) {
// try {
// Intent shareIntent = new Intent(Intent.ACTION_SEND);
// shareIntent.setDataAndType(
// fileUri,
// getContentResolver().getType(fileUri)
// );
// shareIntent.putExtra(Intent.EXTRA_STREAM, fileUri);
// shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
// startActivity(
// Intent.createChooser(
// shareIntent,
// getString(R.string.share_file)
// )
// );
// } catch (ActivityNotFoundException e) {
// Log.e(TAG, "Error sharing file", e);
// Toast.makeText(
// MainActivity.this,
// R.string.no_shareable_apps,
// Toast.LENGTH_SHORT
// ).show();
// }
// }
// break;
// case R.id.action_load:
// requestOpen();
// break;
// }
// return super.onOptionsItemSelected(item);
// }
private void requestSave(String text) {
Intent saveIntent = new Intent(EditFragment.SAVE_ACTION);
saveIntent.putExtra("fileName", text);
LocalBroadcastManager.getInstance(getApplicationContext())
.sendBroadcast(saveIntent);
}
private void requestOpen() {
Intent openIntent = new Intent(Intent.ACTION_GET_CONTENT);
openIntent.setType("*/*");
openIntent.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityForResult(
Intent.createChooser(
openIntent,
getString(R.string.open_file)
),
FileUtils.OPEN_FILE_REQUEST
);
} catch (ActivityNotFoundException e) {
Toast.makeText(MainActivity.this, R.string.no_filebrowser, Toast.LENGTH_SHORT)
.show();
}
}
// @Override
// public void onRequestPermissionsResult(int requestCode,
// String permissions[], int[] grantResults) {
// switch (requestCode) {
// case FileUtils.WRITE_PERMISSION_REQUEST: {
// // If request is cancelled, the result arrays are empty.
// if (grantResults.length > 0
// && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// // Permission granted, open file chooser dialog
// requestSave(getFileName());
// } else {
// // Permission denied, do nothing
// Toast.makeText(MainActivity.this, R.string.no_permissions, Toast.LENGTH_SHORT)
// .show();
// }
// return;
// }
// }
// }
@Override
public void onBackPressed() {
if (pager.getCurrentItem() == FRAGMENT_EDIT)
super.onBackPressed();
else
pager.setCurrentItem(FRAGMENT_EDIT);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case FileUtils.OPEN_FILE_REQUEST:
if (resultCode == RESULT_OK) {
Uri fileUri = data.getData();
Intent loadIntent = new Intent(EditFragment.LOAD_ACTION);
loadIntent.putExtra("fileUri", fileUri.toString());
LocalBroadcastManager.getInstance(MainActivity.this).sendBroadcast(loadIntent);
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}

24
app/src/main/java/com/wbrawner/simplemarkdown/MarkdownApplication.java Normal file
View file

@ -0,0 +1,24 @@
package com.wbrawner.simplemarkdown;
import android.app.Application;
/**
* Created by billy on 8/22/17.
*/
public class MarkdownApplication extends Application {
private AppComponent component;
@Override
public void onCreate() {
super.onCreate();
component = DaggerAppComponent.builder()
.appModule(new AppModule())
.build();
}
public AppComponent getComponent() {
return component;
}
}

57
app/src/main/java/com/wbrawner/simplemarkdown/MarkdownViewModel.java
View file

@ -1,14 +1,10 @@
package com.wbrawner.simplemarkdown; package com.wbrawner.simplemarkdown;
import android.arch.lifecycle.LiveData; public class MarkdownViewModel {
import android.arch.lifecycle.MutableLiveData; /*
import android.arch.lifecycle.ViewModel; private static final String TAG = MarkdownViewModel.class.getSimpleName();
private File file;
import com.commonsware.cwac.anddown.AndDown; public MutableLiveData<String> markdownLiveData;
public class MarkdownViewModel extends ViewModel {
private MutableLiveData<String> markdownLiveData;
private MutableLiveData<String> htmlLiveData = new MutableLiveData<>();; private MutableLiveData<String> htmlLiveData = new MutableLiveData<>();;
public MarkdownViewModel() { public MarkdownViewModel() {
@ -34,4 +30,47 @@ public class MarkdownViewModel extends ViewModel {
public LiveData<String> getHtml() { public LiveData<String> getHtml() {
return htmlLiveData; return htmlLiveData;
} }
public void openFile(String filePath) {
file = new File(filePath);
}
public String getFileName() {
if (file == null || file.getName().isEmpty())
return "Untitled.md";
return file.getName();
}
public boolean saveFile(String filePath, @Nullable String fileName) {
if (fileName == null) {
if (file != null)
fileName = file.getName();
else
fileName = "Untitled.md";
}
if (!filePath.endsWith("/"))
filePath += "/";
final boolean result;
new AsyncTask<String, Void, Void>() {
@Override
protected Void doInBackground(String... strings) {
try {
PrintWriter writer = new PrintWriter(strings[0], "UTF-8");
writer.write(markdownLiveData.getValue());
} catch (IOException e) {
Log.e(TAG, "Error saving file: ", e);
}
return null;
}
}.execute(filePath + fileName);
return true;
}
public void requestSave(String s) {
// Do something to save the file?
}
public String getMarkdown() {
return markdownLiveData.getValue();
} */
} }

66
app/src/main/java/com/wbrawner/simplemarkdown/PreviewFragment.java
View file

@ -1,66 +0,0 @@
package com.wbrawner.simplemarkdown;
import android.Manifest;
import android.arch.lifecycle.LifecycleFragment;
import android.arch.lifecycle.Observer;
import android.arch.lifecycle.ViewModelProviders;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import com.commonsware.cwac.anddown.AndDown;
import org.reactivestreams.Subscriber;
import org.reactivestreams.Subscription;
import butterknife.BindView;
import butterknife.ButterKnife;
import io.reactivex.Observable;
import io.reactivex.processors.PublishProcessor;
import io.reactivex.subjects.PublishSubject;
import io.reactivex.subjects.Subject;
public class PreviewFragment extends LifecycleFragment {
private static final String TAG = PreviewFragment.class.getSimpleName();
private static final int INTERNET_REQUEST = 0;
private MarkdownViewModel markdownViewModel;
@BindView(R.id.markdown_view)
WebView markdownView;
public static final String SCROLL_ACTION = "com.wbrawner.simplemarkdown.scroll";
public static final String PREVIEW_ACTION = "com.wbrawner.simplemarkdown.preview";
public PreviewFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_preview, container, false);
ButterKnife.bind(this, view);
markdownViewModel = ViewModelProviders.of(getActivity()).get(MarkdownViewModel.class);
markdownViewModel.getHtml().observe(this, s -> markdownView.loadData(s, "text/html", "UTF-8"));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
WebView.setWebContentsDebuggingEnabled(true);
}
return view;
}
}

198
app/src/main/java/com/wbrawner/simplemarkdown/model/MarkdownFile.java Normal file
View file

@ -0,0 +1,198 @@
package com.wbrawner.simplemarkdown.model;
import android.util.Log;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.util.Scanner;
import static android.content.ContentValues.TAG;
/**
* Created by billy on 8/22/17.
*/
public class MarkdownFile {
public static final int SUCCESS = 0;
public static final int FILE_EXISTS = 1;
public static final int FILE_NOT_EXISTS = 2;
public static final int READ_ERROR = 3;
public static final int WRITE_ERROR = 4;
public static final int PARAMETERS_MISSING = 5;
private String name;
private String path;
private String content;
public MarkdownFile(String name, String path, String content) {
this.name = name;
this.path = path;
this.content = content;
}
public MarkdownFile(String path) {
int code = load(path);
if (code != SUCCESS) {
this.name = path.substring(
path.lastIndexOf("/") + 1
);
this.path = path.substring(
0,
path.lastIndexOf("/")
);
this.content = "";
}
}
public MarkdownFile() {
this.name = "Untitled.md";
this.path = "";
this.content = "";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPath() {
return path;
}
public String getFullPath() {
String fullPath;
if (!this.path.endsWith("/"))
fullPath = this.path + "/";
else
fullPath = this.path;
return fullPath + this.name;
}
public void setPath(String path) {
this.path = path;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public int load(InputStream in) {
StringBuilder sb = new StringBuilder();
Scanner s = new java.util.Scanner(in).useDelimiter("\\n");
while(s.hasNext()) {
sb.append(s.next() + "\n");
}
this.content = sb.toString();
return SUCCESS;
}
public int load(String path) {
Log.d(TAG, path);
int code;
File markdownFile = new File(path);
if (markdownFile.exists() && markdownFile.canRead()) {
BufferedReader reader = null;
try {
this.name = markdownFile.getName();
this.path = markdownFile.getPath();
StringBuilder sb = new StringBuilder();
String line;
reader = new BufferedReader(new FileReader(markdownFile));
while ((line = reader.readLine()) != null)
sb.append(line + "\n");
this.content = sb.toString();
code = SUCCESS;
} catch (FileNotFoundException e) {
code = FILE_NOT_EXISTS;
} catch (IOException e) {
code = READ_ERROR;
}
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
// closing the reader failed
}
}
} else {
code = READ_ERROR;
}
return code;
}
public int load() {
if (!parametersOk())
return PARAMETERS_MISSING;
return load(getFullPath());
}
public int save(String path) {
int code;
File markdownFile = new File(path);
if (!markdownFile.exists()) {
try {
markdownFile.createNewFile();
} catch (IOException e) {
return WRITE_ERROR;
}
}
if (markdownFile.canWrite()) {
OutputStreamWriter writer = null;
try {
writer = new OutputStreamWriter(
new FileOutputStream(markdownFile)
);
writer.write(this.content);
code = SUCCESS;
}
catch (IOException e) {
code = WRITE_ERROR;
}
if (writer != null) {
try {
writer.close();
} catch (IOException e) {
// closing the reader failed
}
}
} else {
code = WRITE_ERROR;
}
return code;
}
public int save() {
if (!parametersOk())
return PARAMETERS_MISSING;
return save(this.getFullPath());
}
public int fileExists(String path) {
if (new File(path).exists())
return FILE_EXISTS;
return FILE_NOT_EXISTS;
}
public int fileExists() {
if (parametersOk())
return fileExists(getFullPath());
return PARAMETERS_MISSING;
}
private boolean parametersOk() {
return !this.name.isEmpty() && !this.path.isEmpty();
}
}

10
app/src/main/java/com/wbrawner/simplemarkdown/presentation/LifecyclePresenter.java Normal file
View file

@ -0,0 +1,10 @@
package com.wbrawner.simplemarkdown.presentation;
/**
* Created by billy on 8/22/17.
*/
public interface LifecyclePresenter {
void resume();
void pause();
}

24
app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenter.java Normal file
View file

@ -0,0 +1,24 @@
package com.wbrawner.simplemarkdown.presentation;
import com.wbrawner.simplemarkdown.view.MarkdownEditView;
import com.wbrawner.simplemarkdown.view.MarkdownPreviewView;
import java.io.InputStream;
/**
* Created by billy on 8/22/17.
*/
public interface MarkdownPresenter extends LifecyclePresenter {
void loadMarkdown(String filePath);
void loadMarkdown(InputStream in);
void setEditView(MarkdownEditView editView);
void setPreviewView(MarkdownPreviewView previewView);
void saveMarkdown(String filePath);
void onMarkdownEdited();
void onMarkdownEdited(String markdown);
String getFileName();
void setFileName(String name);
String getMarkdown();
void setMarkdown(String markdown);
}

122
app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenterImpl.java Normal file
View file

@ -0,0 +1,122 @@
package com.wbrawner.simplemarkdown.presentation;
import com.commonsware.cwac.anddown.AndDown;
import com.wbrawner.simplemarkdown.model.MarkdownFile;
import com.wbrawner.simplemarkdown.view.MarkdownEditView;
import com.wbrawner.simplemarkdown.view.MarkdownPreviewView;
import java.io.InputStream;
/**
* Created by billy on 8/22/17.
*/
public class MarkdownPresenterImpl implements MarkdownPresenter {
private MarkdownFile file;
private MarkdownEditView editView;
private MarkdownPreviewView previewView;
private String TAG = MarkdownPresenterImpl.class.getSimpleName();
public MarkdownPresenterImpl(MarkdownFile file) {
this.file = file;
}
@Override
public void resume() {}
@Override
public void pause() {
saveMarkdown("");
}
@Override
public void loadMarkdown(String filePath) {
Runnable fileLoader = () -> {
int result = file.load(filePath);
if (result == MarkdownFile.SUCCESS) {
editView.setMarkdown(getMarkdown());
onMarkdownEdited();
} else {
editView.showFileLoadeddError(result);
}
};
fileLoader.run();
}
@Override
public void loadMarkdown(InputStream in) {
Runnable fileLoader = () -> {
int result = file.load(in);
if (result == MarkdownFile.SUCCESS) {
editView.setMarkdown(getMarkdown());
onMarkdownEdited();
} else {
editView.showFileLoadeddError(result);
}
};
fileLoader.run();
}
@Override
public void setEditView(MarkdownEditView editView) {
this.editView = editView;
}
@Override
public void setPreviewView(MarkdownPreviewView previewView) {
this.previewView = previewView;
}
@Override
public void saveMarkdown(String filePath) {
Runnable fileSaver = () -> {
int code;
code = file.save(filePath);
if (code == MarkdownFile.SUCCESS) {
editView.showFileSavedMessage();
} else {
editView.showFileSavedError(code);
}
};
fileSaver.run();
}
@Override
public void onMarkdownEdited(String markdown) {
Runnable generateMarkdown = () -> {
AndDown andDown = new AndDown();
int hoedownFlags =
AndDown.HOEDOWN_EXT_STRIKETHROUGH | AndDown.HOEDOWN_EXT_TABLES |
AndDown.HOEDOWN_EXT_UNDERLINE | AndDown.HOEDOWN_EXT_SUPERSCRIPT |
AndDown.HOEDOWN_EXT_FENCED_CODE;
if (previewView != null)
previewView.updatePreview(andDown.markdownToHtml(markdown, hoedownFlags, 0));
};
generateMarkdown.run();
}
@Override
public void onMarkdownEdited() {
onMarkdownEdited(getMarkdown());
}
@Override
public String getFileName() {
return file.getName();
}
@Override
public void setFileName(String name) {
file.setName(name);
}
@Override
public String getMarkdown() {
return file.getContent();
}
@Override
public void setMarkdown(String markdown) {
file.setContent(markdown);
}
}

15
app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownEditView.java Normal file
View file

@ -0,0 +1,15 @@
package com.wbrawner.simplemarkdown.view;
/**
* Created by billy on 8/22/17.
*/
public interface MarkdownEditView {
String getMarkdown();
void setMarkdown(String markdown);
void showFileSavedMessage();
void showFileSavedError(int code);
void showFileLoadedMessage();
void showFileLoadeddError(int code);
}

9
app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.java Normal file
View file

@ -0,0 +1,9 @@
package com.wbrawner.simplemarkdown.view;
/**
* Created by billy on 8/22/17.
*/
public interface MarkdownPreviewView {
void updatePreview(String html);
}

236
app/src/main/java/com/wbrawner/simplemarkdown/view/activity/MainActivity.java Normal file
View file

@ -0,0 +1,236 @@
package com.wbrawner.simplemarkdown.view.activity;
import android.Manifest;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.OpenableColumns;
import android.support.design.widget.TabLayout;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.InputType;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import com.wbrawner.simplemarkdown.MarkdownApplication;
import com.wbrawner.simplemarkdown.R;
import com.wbrawner.simplemarkdown.presentation.MarkdownPresenter;
import com.wbrawner.simplemarkdown.view.adapter.EditPagerAdapter;
import java.io.InputStream;
import javax.inject.Inject;
import butterknife.BindView;
import butterknife.ButterKnife;
public class MainActivity extends AppCompatActivity
implements ActivityCompat.OnRequestPermissionsResultCallback {
public static final int WRITE_PERMISSION_REQUEST = 0;
private static final int OPEN_FILE_REQUEST = 1;
public static final String AUTHORITY = "com.wbrawner.simplemarkdown.fileprovider";
@Inject
MarkdownPresenter presenter;
@BindView(R.id.pager)
ViewPager pager;
@BindView(R.id.layout_tab)
TabLayout tabLayout;
private static final String TAG = MainActivity.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
((MarkdownApplication) getApplication()).getComponent().inject(this);
// Reset the background color
getWindow().setBackgroundDrawable(new ColorDrawable(0xFFFFFFFF));
ButterKnife.bind(this);
pager.setAdapter(
new EditPagerAdapter(getSupportFragmentManager(), MainActivity.this)
);
pager.setPageMargin(1);
pager.setPageMarginDrawable(R.color.colorAccent);
Intent intent = getIntent();
if (intent != null && !intent.getAction().equals(Intent.ACTION_MAIN) && intent.getData() != null) {
loadFromUri(intent.getData());
}
if (getResources().getConfiguration().orientation
== Configuration.ORIENTATION_LANDSCAPE) {
tabLayout.setVisibility(View.GONE);
}
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE)
tabLayout.setVisibility(View.GONE);
else
tabLayout.setVisibility(View.VISIBLE);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_edit, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_save:
if (ContextCompat.checkSelfPermission(
MainActivity.this,
Manifest.permission.WRITE_EXTERNAL_STORAGE
) == PackageManager.PERMISSION_GRANTED)
showSaveDialog();
else {
if (Build.VERSION.SDK_INT >= 23) {
requestPermissions(
new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
WRITE_PERMISSION_REQUEST
);
}
}
break;
case R.id.action_share:
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_TEXT, presenter.getMarkdown());
shareIntent.setType("text/plain");
startActivity(Intent.createChooser(
shareIntent,
getString(R.string.share_file)
));
break;
case R.id.action_load:
requestOpen();
break;
}
return super.onOptionsItemSelected(item);
}
private void showSaveDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(R.string.action_save);
final EditText input = new EditText(this);
input.setInputType(InputType.TYPE_CLASS_TEXT);
input.setHint(R.string.hint_filename);
input.setText(presenter.getFileName());
builder.setView(input);
builder.setPositiveButton("OK", (dialog, which) -> {
if (input.getText().length() > 0) {
presenter.setFileName(input.getText().toString());
setTitle(input.getText());
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
String path = Environment.getExternalStorageDirectory() + "/" +
Environment.DIRECTORY_DOCUMENTS + "/" + input.getText();
presenter.saveMarkdown(path);
}
}
});
builder.setNegativeButton("Cancel", (dialog, which) -> {
dialog.cancel();
});
builder.show();
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case WRITE_PERMISSION_REQUEST: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// Permission granted, open file save dialog
showSaveDialog();
} else {
// Permission denied, do nothing
Toast.makeText(MainActivity.this, R.string.no_permissions, Toast.LENGTH_SHORT)
.show();
}
return;
}
}
}
@Override
public void onBackPressed() {
if (pager.getCurrentItem() == EditPagerAdapter.FRAGMENT_EDIT)
super.onBackPressed();
else
pager.setCurrentItem(EditPagerAdapter.FRAGMENT_EDIT);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case OPEN_FILE_REQUEST:
if (resultCode == RESULT_OK) {
loadFromUri(data.getData());
}
}
super.onActivityResult(requestCode, resultCode, data);
}
private void loadFromUri(Uri fileUri) {
try {
InputStream in =
getContentResolver().openInputStream(fileUri);
Cursor retCur = getContentResolver()
.query(fileUri, null, null, null, null);
if (retCur != null) {
int nameIndex = retCur
.getColumnIndex(OpenableColumns.DISPLAY_NAME);
retCur.moveToFirst();
presenter.setFileName(retCur.getString(nameIndex));
}
presenter.loadMarkdown(in);
} catch (Exception e) {
Toast.makeText(MainActivity.this, R.string.file_load_error, Toast.LENGTH_SHORT)
.show();
}
}
private void requestOpen() {
Intent openIntent = new Intent(Intent.ACTION_GET_CONTENT);
openIntent.setType("text/*");
openIntent.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityForResult(
Intent.createChooser(
openIntent,
getString(R.string.open_file)
),
OPEN_FILE_REQUEST
);
} catch (ActivityNotFoundException e) {
Toast.makeText(MainActivity.this, R.string.no_filebrowser, Toast.LENGTH_SHORT)
.show();
}
}
}

14
app/src/main/java/com/wbrawner/simplemarkdown/EditPagerAdapter.java → app/src/main/java/com/wbrawner/simplemarkdown/view/adapter/EditPagerAdapter.java
View file

@ -1,4 +1,4 @@
package com.wbrawner.simplemarkdown; package com.wbrawner.simplemarkdown.view.adapter;
/** /**
* Created by billy on 7/29/2017. * Created by billy on 7/29/2017.
@ -10,11 +10,15 @@ import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.app.FragmentPagerAdapter;
import static com.wbrawner.simplemarkdown.MainActivity.FRAGMENT_EDIT; import com.wbrawner.simplemarkdown.R;
import static com.wbrawner.simplemarkdown.MainActivity.FRAGMENT_PREVIEW; import com.wbrawner.simplemarkdown.view.fragment.EditFragment;
import static com.wbrawner.simplemarkdown.MainActivity.NUM_PAGES; import com.wbrawner.simplemarkdown.view.fragment.PreviewFragment;
public class EditPagerAdapter extends FragmentPagerAdapter {
public static final int FRAGMENT_EDIT = 0;
public static final int FRAGMENT_PREVIEW = 1;
public static final int NUM_PAGES = 2;
class EditPagerAdapter extends FragmentPagerAdapter {
private Context mContext; private Context mContext;
public EditPagerAdapter(FragmentManager fm, Context context) { public EditPagerAdapter(FragmentManager fm, Context context) {

112
app/src/main/java/com/wbrawner/simplemarkdown/view/fragment/EditFragment.java Normal file
View file

@ -0,0 +1,112 @@
package com.wbrawner.simplemarkdown.view.fragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.Toast;
import com.jakewharton.rxbinding2.widget.RxTextView;
import com.wbrawner.simplemarkdown.MarkdownApplication;
import com.wbrawner.simplemarkdown.R;
import com.wbrawner.simplemarkdown.model.MarkdownFile;
import com.wbrawner.simplemarkdown.presentation.MarkdownPresenter;
import com.wbrawner.simplemarkdown.view.MarkdownEditView;
import java.util.concurrent.TimeUnit;
import javax.inject.Inject;
import butterknife.BindView;
import butterknife.ButterKnife;
import io.reactivex.Observable;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;
public class EditFragment extends Fragment implements MarkdownEditView {
public static final String SAVE_ACTION = "com.wbrawner.simplemarkdown.ACTION_SAVE";
public static final String LOAD_ACTION = "com.wbrawner.simplemarkdown.ACTION_LOAD";
private String TAG = EditFragment.class.getSimpleName();
@Inject
MarkdownPresenter presenter;
@BindView(R.id.markdown_edit)
EditText markdownEditor;
public EditFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_edit, container, false);
ButterKnife.bind(this, view);
((MarkdownApplication) getActivity().getApplication()).getComponent().inject(this);
Observable<String> obs = RxTextView.textChanges(markdownEditor)
.debounce(50, TimeUnit.MILLISECONDS).map(CharSequence::toString);
obs.subscribeOn(Schedulers.io());
obs.observeOn(AndroidSchedulers.mainThread());
obs.subscribe(markdown -> {
presenter.onMarkdownEdited(markdown);
});
return view;
}
@Override
public void onResume() {
super.onResume();
presenter.setEditView(this);
setMarkdown(presenter.getMarkdown());
}
@Override
public void onPause() {
super.onPause();
presenter.setEditView(null);
}
@Override
public String getMarkdown() {
return markdownEditor.getText().toString();
}
@Override
public void showFileSavedMessage() {
Toast.makeText(getActivity(), R.string.file_saved, Toast.LENGTH_SHORT).show();
}
@Override
public void showFileSavedError(int code) {
String message = "";
switch (code) {
case MarkdownFile.WRITE_ERROR:
message = getString(R.string.error_write);
break;
default:
message = getString(R.string.file_save_error);
}
Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();
}
@Override
public void showFileLoadedMessage() {
Toast.makeText(getActivity(), R.string.file_loaded, Toast.LENGTH_SHORT).show();
}
@Override
public void showFileLoadeddError(int code) {
String message = "";
Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();
}
@Override
public void setMarkdown(String markdown) {
markdownEditor.setText(markdown);
}
}

74
app/src/main/java/com/wbrawner/simplemarkdown/view/fragment/PreviewFragment.java Normal file
View file

@ -0,0 +1,74 @@
package com.wbrawner.simplemarkdown.view.fragment;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import com.wbrawner.simplemarkdown.MarkdownApplication;
import com.wbrawner.simplemarkdown.R;
import com.wbrawner.simplemarkdown.presentation.MarkdownPresenter;
import com.wbrawner.simplemarkdown.view.MarkdownPreviewView;
import javax.inject.Inject;
import butterknife.BindView;
import butterknife.ButterKnife;
public class PreviewFragment extends Fragment implements MarkdownPreviewView {
private static final String TAG = PreviewFragment.class.getSimpleName();
@Inject
MarkdownPresenter presenter;
@BindView(R.id.markdown_view)
WebView markdownPreview;
public PreviewFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_preview, container, false);
ButterKnife.bind(this, view);
((MarkdownApplication) getActivity().getApplication()).getComponent().inject(this);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
WebView.setWebContentsDebuggingEnabled(true);
}
return view;
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
@Override
public void updatePreview(String html) {
markdownPreview.post(() -> {
markdownPreview.loadData(html, "text/html", "UTF-8");
});
}
@Override
public void onResume() {
super.onResume();
presenter.setPreviewView(this);
presenter.onMarkdownEdited();
}
@Override
public void onDestroy() {
super.onDestroy();
presenter.setPreviewView(null);
}
}

2
app/src/main/res/layout/fragment_edit.xml
View file

@ -2,7 +2,7 @@
xmlns:tools="http://schemas.android.com/tools" xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_height="match_parent"
tools:context="com.wbrawner.simplemarkdown.EditFragment"> tools:context="com.wbrawner.simplemarkdown.view.fragment.EditFragment">
<EditText <EditText
android:layout_width="match_parent" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_height="match_parent"

2
app/src/main/res/layout/fragment_preview.xml
View file

@ -2,7 +2,7 @@
xmlns:tools="http://schemas.android.com/tools" xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_height="match_parent"
tools:context="com.wbrawner.simplemarkdown.PreviewFragment"> tools:context="com.wbrawner.simplemarkdown.view.fragment.PreviewFragment">
<WebView <WebView
android:layout_width="match_parent" android:layout_width="match_parent"

12
app/src/main/res/menu/menu_edit.xml
View file

@ -1,16 +1,16 @@
<?xml version="1.0" encoding="utf-8"?> <?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" <menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"> xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:title="@string/action_save"
android:id="@+id/action_save"
android:icon="@drawable/ic_action_save"
app:showAsAction="always" />
<item <item
android:title="@string/action_share" android:title="@string/action_share"
android:id="@+id/action_share" android:id="@+id/action_share"
android:icon="@drawable/ic_action_share" android:icon="@drawable/ic_action_share"
app:showAsAction="always" /> app:showAsAction="ifRoom" />
<item
android:title="@string/action_save"
android:id="@+id/action_save"
android:icon="@drawable/ic_action_save"
app:showAsAction="never" />
<item <item
android:id="@+id/action_load" android:id="@+id/action_load"
android:orderInCategory="100" android:orderInCategory="100"

4
app/src/main/res/values/strings.xml
View file

@ -19,4 +19,8 @@
<string name="action_load">Load</string> <string name="action_load">Load</string>
<string name="open_file">Select a file to open</string> <string name="open_file">Select a file to open</string>
<string name="no_filebrowser">No file browser apps found</string> <string name="no_filebrowser">No file browser apps found</string>
<string name="file_save_error">An error occurred while saving the file</string>
<string name="file_loaded">File successfully loaded</string>
<string name="error_write">An error occurred while writing the file</string>
<string name="file_load_error">An error occurred while opening the file</string>
</resources> </resources>