Add share and save image in GalleryActivity

app/src/main/java/com/hippo/ehviewer/AppConfig.java

@@ -28,8 +28,9 @@ public class AppConfig {
 
     private static final String APP_DIRNAME = "EhViewer";
 
-    private static final String SPIDER_INFO = "spider_info";
     private static final String DOWNLOAD = "download";
+    private static final String TEMP = "temp";
+    private static final String IMAGE = "image";
 
     private static Context sContext;
 
@@ -50,7 +51,7 @@ public class AppConfig {
      * mkdirs and get
      */
     @Nullable
-    public static File getDirInAppDir(String filename) {
+    public static File getDirInExternalAppDir(String filename) {
         File appFolder = getExternalAppDir();
         if (appFolder != null) {
             File dir = new File(appFolder, filename);
@@ -60,7 +61,7 @@ public class AppConfig {
     }
 
     @Nullable
-    public static File getFileInAppDir(String filename) {
+    public static File getFileInExternalAppDir(String filename) {
         File appFolder = getExternalAppDir();
         if (appFolder != null) {
             File file = new File(appFolder, filename);
@@ -71,6 +72,21 @@ public class AppConfig {
 
     @Nullable
     public static File getDefaultDownloadDir() {
-        return getDirInAppDir(DOWNLOAD);
+        return getDirInExternalAppDir(DOWNLOAD);
+    }
+
+    @Nullable
+    public static File getExternalTempDir() {
+        return getDirInExternalAppDir(TEMP);
+    }
+
+    @Nullable
+    public static File getExternalImageDir() {
+        return getDirInExternalAppDir(IMAGE);
+    }
+
+    @Nullable
+    public static File createExternalTempFile() {
+        return FileUtils.createTempFile(getExternalTempDir(), null);
     }
 }

app/src/main/java/com/hippo/ehviewer/Settings.java

@@ -433,7 +433,7 @@ public class Settings {
         boolean writeXml = false;
         boolean writeFile = false;
         String userID = getString(KEY_USER_ID, null);
-        File file = AppConfig.getFileInAppDir(FILENAME_USER_ID);
+        File file = AppConfig.getFileInExternalAppDir(FILENAME_USER_ID);
         if (null == userID || !isValidUserID(userID)) {
             writeXml = true;
             // Get use ID from out sd card file

app/src/main/java/com/hippo/ehviewer/gallery/DirGalleryProvider.java

@@ -17,6 +17,7 @@
 package com.hippo.ehviewer.gallery;
 
 import android.os.Process;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.util.Log;
 
@@ -24,32 +25,37 @@ import com.hippo.ehviewer.GetText;
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.gallery.gl.GalleryPageView;
 import com.hippo.image.Image;
+import com.hippo.unifile.UniFile;
+import com.hippo.yorozuya.FileUtils;
+import com.hippo.yorozuya.IOUtils;
 import com.hippo.yorozuya.PriorityThread;
 import com.hippo.yorozuya.StringUtils;
 
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.FilenameFilter;
+import java.io.IOException;
 import java.io.InputStream;
+import java.io.OutputStream;
 import java.util.Arrays;
 import java.util.Stack;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicReference;
 
 public class DirGalleryProvider extends GalleryProvider implements Runnable {
 
     private static final String TAG = DirGalleryProvider.class.getSimpleName();
     private static final AtomicInteger sIdGenerator = new AtomicInteger();
 
-    private final File mDir;
+    private final UniFile mDir;
     private final Stack<Integer> mRequests = new Stack<>();
     private final AtomicInteger mDecodingIndex = new AtomicInteger(GalleryPageView.INVALID_INDEX);
+    private final AtomicReference<UniFile[]> mFileList = new AtomicReference<>();
     @Nullable
     private Thread mBgThread;
     private volatile int mSize = STATE_WAIT;
     private String mError;
 
-    public DirGalleryProvider(File dir) {
+    public DirGalleryProvider(@NonNull UniFile dir) {
         mDir = dir;
     }
 
@@ -100,10 +106,62 @@ public class DirGalleryProvider extends GalleryProvider implements Runnable {
         return mError;
     }
 
+    @Override
+    public boolean save(int index, @NonNull UniFile file) {
+        UniFile[] fileList = mFileList.get();
+        if (null == fileList || index < 0 || index >= fileList.length) {
+            return false;
+        }
+
+        InputStream is = null;
+        OutputStream os = null;
+        try {
+            is = fileList[index].openInputStream();
+            os = file.openOutputStream();
+            IOUtils.copy(is, os);
+            return true;
+        } catch (IOException e) {
+            return false;
+        } finally {
+            IOUtils.closeQuietly(is);
+            IOUtils.closeQuietly(os);
+        }
+    }
+
+    @Nullable
+    @Override
+    public UniFile save(int index, @NonNull UniFile dir, @NonNull String filename) {
+        UniFile[] fileList = mFileList.get();
+        if (null == fileList || index < 0 || index >= fileList.length) {
+            return null;
+        }
+
+        UniFile src = fileList[index];
+        String extension = FileUtils.getExtensionFromFilename(src.getName());
+        UniFile dst = dir.subFile(null != extension ? filename + "." + extension : filename);
+        if (null == dst) {
+            return null;
+        }
+
+        InputStream is = null;
+        OutputStream os = null;
+        try {
+            is = src.openInputStream();
+            os = dst.openOutputStream();
+            IOUtils.copy(is, os);
+            return dst;
+        } catch (IOException e) {
+            return null;
+        } finally {
+            IOUtils.closeQuietly(is);
+            IOUtils.closeQuietly(os);
+        }
+    }
+
     @Override
     public void run() {
         // It may take a long time, so run it in new thread
-        String[] files = mDir.list(new ImageFilter());
+        UniFile[] files = mDir.listFiles();
 
         if (files == null) {
             mSize = STATE_ERROR;
@@ -119,6 +177,9 @@ public class DirGalleryProvider extends GalleryProvider implements Runnable {
         // Sort it
         Arrays.sort(files);
 
+        // Put file list
+        mFileList.lazySet(files);
+
         // Set state normal and notify
         mSize = files.length;
         notifyDataChanged();
@@ -146,8 +207,9 @@ public class DirGalleryProvider extends GalleryProvider implements Runnable {
                 continue;
             }
 
+            InputStream is = null;
             try {
-                InputStream is = new FileInputStream(new File(mDir, files[index]));
+                is = files[index].openInputStream();
                 Image image = Image.decode(is, true);
                 mDecodingIndex.lazySet(GalleryPageView.INVALID_INDEX);
                 if (image != null) {
@@ -155,13 +217,18 @@ public class DirGalleryProvider extends GalleryProvider implements Runnable {
                 } else {
                     notifyPageFailed(index, GetText.getString(R.string.error_decoding_failed));
                 }
-            } catch (FileNotFoundException e) {
+            } catch (IOException e) {
                 mDecodingIndex.lazySet(GalleryPageView.INVALID_INDEX);
-                notifyPageFailed(index, GetText.getString(R.string.error_not_found));
+                notifyPageFailed(index, GetText.getString(R.string.error_reading_failed));
+            } finally {
+                IOUtils.closeQuietly(is);
             }
             mDecodingIndex.lazySet(GalleryPageView.INVALID_INDEX);
         }
 
+        // Clear file list
+        mFileList.lazySet(null);
+
         Log.i(TAG, "ImageDecoder end");
     }
 

app/src/main/java/com/hippo/ehviewer/gallery/EhGalleryProvider.java

@@ -17,11 +17,13 @@
 package com.hippo.ehviewer.gallery;
 
 import android.content.Context;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 
 import com.hippo.ehviewer.client.data.GalleryInfo;
 import com.hippo.ehviewer.spider.SpiderQueen;
 import com.hippo.image.Image;
+import com.hippo.unifile.UniFile;
 import com.hippo.yorozuya.SimpleHandler;
 
 public class EhGalleryProvider extends GalleryProvider implements SpiderQueen.OnSpiderListener {
@@ -71,6 +73,25 @@ public class EhGalleryProvider extends GalleryProvider implements SpiderQueen.On
         }
     }
 
+    @Override
+    public boolean save(int index, @NonNull UniFile file) {
+        if (null != mSpiderQueen) {
+            return mSpiderQueen.save(index, file);
+        } else {
+            return false;
+        }
+    }
+
+    @Nullable
+    @Override
+    public UniFile save(int index, @NonNull UniFile dir, @NonNull String filename) {
+        if (null != mSpiderQueen) {
+            return mSpiderQueen.save(index, dir, filename);
+        } else {
+            return null;
+        }
+    }
+
     @Override
     public void putStartPage(int page) {
         if (mSpiderQueen != null) {

app/src/main/java/com/hippo/ehviewer/gallery/GalleryProvider.java

@@ -17,11 +17,14 @@
 package com.hippo.ehviewer.gallery;
 
 import android.support.annotation.IntDef;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.annotation.UiThread;
 
 import com.hippo.gl.glrenderer.GLCanvas;
 import com.hippo.gl.view.GLRoot;
 import com.hippo.image.Image;
+import com.hippo.unifile.UniFile;
 import com.hippo.yorozuya.ConcurrentPool;
 import com.hippo.yorozuya.OSUtils;
 
@@ -86,6 +89,14 @@ public abstract class GalleryProvider {
         return 0;
     }
 
+    public abstract boolean save(int index, @NonNull UniFile file);
+
+    /**
+     * @param filename without extension
+     */
+    @Nullable
+    public abstract UniFile save(int index, @NonNull UniFile dir, @NonNull String filename);
+
     public void putStartPage(int page) {}
 
     public void setGalleryProviderListener(GalleryProviderListener listener) {

app/src/main/java/com/hippo/ehviewer/gallery/ZipGalleryProvider.java

@@ -17,6 +17,7 @@
 package com.hippo.ehviewer.gallery;
 
 import android.os.Process;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.util.Log;
 
@@ -24,6 +25,7 @@ import com.hippo.ehviewer.GetText;
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.gallery.gl.GalleryPageView;
 import com.hippo.image.Image;
+import com.hippo.unifile.UniFile;
 import com.hippo.yorozuya.PriorityThread;
 import com.hippo.yorozuya.StringUtils;
 
@@ -105,6 +107,19 @@ public class ZipGalleryProvider extends GalleryProvider implements Runnable {
         return mError;
     }
 
+    @Override
+    public boolean save(int index, @NonNull UniFile file) {
+        // TODO
+        return false;
+    }
+
+    @Nullable
+    @Override
+    public UniFile save(int index, @NonNull UniFile dir, @NonNull String filename) {
+        // TODO
+        return null;
+    }
+
     @Override
     public void run() {
         ZipFile zipFile = null;
@@ -121,9 +136,6 @@ public class ZipGalleryProvider extends GalleryProvider implements Runnable {
         // Check zip file null
         if (zipFile == null) {
             mSize = STATE_ERROR;
-            if (mError == null) {
-                mError = GetText.getString(R.string.error_unknown);
-            }
 
             // Notify to to show error
             notifyDataChanged();

app/src/main/java/com/hippo/ehviewer/spider/SpiderQueen.java

@@ -17,6 +17,7 @@
 package com.hippo.ehviewer.spider;
 
 import android.content.Context;
+import android.graphics.BitmapFactory;
 import android.os.AsyncTask;
 import android.os.Process;
 import android.support.annotation.IntDef;
@@ -551,6 +552,72 @@ public class SpiderQueen implements Runnable {
         }
     }
 
+    public boolean save(int index, @NonNull UniFile file) {
+        int state = getPageState(index);
+        if (STATE_FINISHED != state) {
+            return false;
+        }
+
+        InputStreamPipe pipe = mSpiderDen.openInputStreamPipe(index);
+        if (null == pipe) {
+            return false;
+        }
+
+        OutputStream os = null;
+        try {
+            os = file.openOutputStream();
+            pipe.obtain();
+            IOUtils.copy(pipe.open(), os);
+            return true;
+        } catch (IOException e) {
+            return false;
+        } finally {
+            pipe.close();
+            pipe.release();
+            IOUtils.closeQuietly(os);
+        }
+    }
+
+    @Nullable
+    public UniFile save(int index, @NonNull UniFile dir, @NonNull String filename) {
+        int state = getPageState(index);
+        if (STATE_FINISHED != state) {
+            return null;
+        }
+
+        InputStreamPipe pipe = mSpiderDen.openInputStreamPipe(index);
+        if (null == pipe) {
+            return null;
+        }
+
+        OutputStream os = null;
+        try {
+            pipe.obtain();
+
+            // Get dst file
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = true;
+            BitmapFactory.decodeStream(pipe.open(), null, options);
+            pipe.close();
+            String extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(options.outMimeType);
+            UniFile dst = dir.subFile(null != extension ? filename + "." + extension : filename);
+            if (null == dst) {
+                return null;
+            }
+
+            // Copy
+            os = dst.openOutputStream();
+            IOUtils.copy(pipe.open(), os);
+            return dst;
+        } catch (IOException e) {
+            return null;
+        } finally {
+            pipe.close();
+            pipe.release();
+            IOUtils.closeQuietly(os);
+        }
+    }
+
     public int getStartPage() {
         mSpiderInfo = readSpiderInfoFromLocal();
         if (mSpiderInfo != null) {

app/src/main/java/com/hippo/ehviewer/ui/GalleryActivity.java

@@ -21,17 +21,22 @@ import android.annotation.SuppressLint;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.Resources;
+import android.net.Uri;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.SwitchCompat;
+import android.text.TextUtils;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.WindowManager;
+import android.webkit.MimeTypeMap;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.Toast;
 
+import com.hippo.ehviewer.AppConfig;
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.Settings;
 import com.hippo.ehviewer.client.data.GalleryInfo;
@@ -46,6 +51,7 @@ import com.hippo.ehviewer.gallery.gl.ImageView;
 import com.hippo.gl.glrenderer.ImageTexture;
 import com.hippo.gl.view.GLRootView;
 import com.hippo.image.Image;
+import com.hippo.unifile.UniFile;
 import com.hippo.util.SystemUiHelper;
 import com.hippo.widget.Slider;
 import com.hippo.yorozuya.AnimationUtils;
@@ -142,7 +148,7 @@ public class GalleryActivity extends TrackedActivity
 
         if (ACTION_DIR.equals(mAction)) {
             if (mFilename != null) {
-                mGalleryProvider = new DirGalleryProvider(new File(mFilename));
+                mGalleryProvider = new DirGalleryProvider(UniFile.fromFile(new File(mFilename)));
             }
         } else if (ACTION_ZIP.equals(mAction)) {
             if (mFilename != null) {
@@ -658,6 +664,83 @@ public class GalleryActivity extends TrackedActivity
         }
     }
 
+    private void shareImage(int page) {
+        if (null == mGalleryProvider) {
+            return;
+        }
+
+        File dir = AppConfig.getExternalTempDir();
+        if (null == dir) {
+            Toast.makeText(this, R.string.error_cant_create_temp_file, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        UniFile file;
+        if (null == (file = mGalleryProvider.save(page, UniFile.fromFile(dir), Long.toString(System.currentTimeMillis())))) {
+            Toast.makeText(this, R.string.error_cant_save_image, Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        // TODO Create ContentProvider for some app are not grand storage write permission
+        Uri uri = file.getUri();
+        String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(
+                MimeTypeMap.getFileExtensionFromUrl(uri.toString()));
+        if (TextUtils.isEmpty(mimeType)) {
+            mimeType = "image/jpeg";
+        }
+        Intent intent = new Intent();
+        intent.setAction(Intent.ACTION_SEND);
+        intent.putExtra(Intent.EXTRA_STREAM, uri);
+        intent.setType(mimeType);
+        startActivity(Intent.createChooser(intent, getString(R.string.share_image)));
+    }
+
+    private void saveImage(int page) {
+        if (null == mGalleryProvider) {
+            return;
+        }
+
+        File dir = AppConfig.getExternalImageDir();
+        if (null == dir) {
+            Toast.makeText(this, R.string.error_cant_save_image, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        UniFile file;
+        if (null == (file = mGalleryProvider.save(page, UniFile.fromFile(dir), Long.toString(System.currentTimeMillis())))) {
+            Toast.makeText(this, R.string.error_cant_save_image, Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        Toast.makeText(this, getString(R.string.image_saved, file.getUri()), Toast.LENGTH_SHORT).show();
+    }
+
+    private void showPageDialog(final int page) {
+        Resources resources = GalleryActivity.this.getResources();
+        new AlertDialog.Builder(GalleryActivity.this)
+                .setTitle(resources.getString(R.string.page_menu_title, page + 1))
+                .setItems(R.array.page_menu_entries, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        if (mGalleryProvider == null) {
+                            return;
+                        }
+
+                        switch (which) {
+                            case 0: // Refresh
+                                mGalleryProvider.forceRequest(page);
+                                break;
+                            case 1: // Share
+                                shareImage(page);
+                                break;
+                            case 2: // Save
+                                saveImage(page);
+                                break;
+                            case 3: // Add a bookmark
+                                break;
+                        }
+                    }
+                }).show();
+    }
+
     private class NotifyTask implements Runnable {
 
         public static final int KEY_LAYOUT_MODE = 0;
@@ -699,31 +782,7 @@ public class GalleryActivity extends TrackedActivity
         }
 
         private void onLongPressPage(final int index) {
-            Resources resources = GalleryActivity.this.getResources();
-            new AlertDialog.Builder(GalleryActivity.this)
-                    .setTitle(resources.getString(R.string.page_menu_title, index + 1))
-                    .setItems(R.array.page_menu_entries, new DialogInterface.OnClickListener() {
-                        @Override
-                        public void onClick(DialogInterface dialog, int which) {
-                            if (mGalleryProvider == null) {
-                                return;
-                            }
-
-                            switch (which) {
-                                case 0: // Refresh
-                                    mGalleryProvider.forceRequest(index);
-                                    break;
-                                case 1: // Share
-                                    // TODO
-                                    break;
-                                case 2: // Save
-                                    // TODO
-                                    break;
-                                case 3: // Add a bookmark
-                                    break;
-                            }
-                        }
-                    }).show();
+            showPageDialog(index);
         }
 
         @Override