Merge pull request #435 from ltGuillaume/master

Working EXIF lossless on Internal & SD

app/src/main/kotlin/com/simplemobiletools/gallery/activities/ViewPagerActivity.kt

@@ -46,8 +46,9 @@ import com.simplemobiletools.gallery.models.Medium
 import kotlinx.android.synthetic.main.activity_medium.*
 import java.io.File
 import java.io.FileInputStream
-import java.io.FileNotFoundException
 import java.io.FileOutputStream
+import java.io.InputStream
+import java.io.OutputStream
 import java.util.*
 
 class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, ViewPagerFragment.FragmentListener {
@@ -454,52 +455,55 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
         SaveAsDialog(this, currPath, false) {
             Thread({
                 toast(R.string.saving)
-                if (it.isJpg() && !isPathOnSD(it)) {
-                    if (it == currPath) {
-                        rotateFileByExif(it)
-                        runOnUiThread {
-                            (getCurrentFragment() as? PhotoFragment)?.refreshBitmap()
+                val selectedFile = File(it)
+                val tmpFile = File(filesDir, ".tmp_${it.getFilenameFromPath()}")
+                try {
+                    val bitmap = BitmapFactory.decodeFile(currPath)
+                    getFileOutputStream(tmpFile) {
+                        if (it == null) {
+                            toast(R.string.unknown_error_occurred)
+                            return@getFileOutputStream
                         }
-                    } else {
-                        copyFile(currPath, it)
-                        rotateFileByExif(it)
+
+                        if (currPath.isJpg()) {
+                            saveRotation(getCurrentFile(), tmpFile)
+                        } else {
+                            saveFile(tmpFile, bitmap, it as FileOutputStream)
+                        }
+
+                        if (tmpFile.length() > 0 && selectedFile.exists()) {
+                            deleteFile(selectedFile) {}
+                        }
+                        copyFile(tmpFile, selectedFile)
+                        scanPath(selectedFile.absolutePath) {}
+                        toast(R.string.file_saved)
+
+                        it.flush()
+                        it.close()
+                        mRotationDegrees = 0f
+                        invalidateOptionsMenu()
                     }
-                } else {
-                    rotateFileByDegrees(currPath, it)
+                } catch (e: OutOfMemoryError) {
+                    toast(R.string.out_of_memory_error)
+                } catch (e: Exception) {
+                    showErrorToast(e)
+                } finally {
+                    deleteFile(tmpFile) {}
                 }
             }).start()
         }
     }
 
-    private fun rotateFileByDegrees(sourcePath: String, destinationPath: String) {
-        val tmpFile = File(File(destinationPath).parent, ".tmp_${destinationPath.getFilenameFromPath()}")
+    private fun copyFile(source: File, destination: File) {
+        var inputStream: InputStream? = null
+        var out: OutputStream? = null
         try {
-            getFileOutputStream(tmpFile) {
-                if (it == null) {
-                    toast(R.string.unknown_error_occurred)
-                    return@getFileOutputStream
-                }
-
-                val bitmap = BitmapFactory.decodeFile(sourcePath)
-                saveFile(tmpFile, bitmap, it as FileOutputStream)
-                it.flush()
-                it.close()
-
-                val destination = File(destinationPath)
-                deleteFile(destination) {
-                    renameFile(tmpFile, destination) {}
-                }
-
-                toast(R.string.file_saved)
-                mRotationDegrees = 0f
-                invalidateOptionsMenu()
-            }
-        } catch (e: OutOfMemoryError) {
-            toast(R.string.out_of_memory_error)
-            deleteFile(tmpFile) {}
-        } catch (e: Exception) {
-            showErrorToast(e)
-            deleteFile(tmpFile) {}
+            out = getFileOutputStreamSync(destination.absolutePath, source.getMimeType(), getFileDocument(destination.parent))
+            inputStream = FileInputStream(source)
+            inputStream.copyTo(out!!)
+        } finally {
+            inputStream?.close()
+            out?.close()
         }
     }
 
@@ -510,34 +514,13 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
         bmp.compress(file.getCompressionFormat(), 90, out)
     }
 
-    private fun copyFile(sourcePath: String, destinationPath: String) {
-        var inputStream: FileInputStream? = null
-        var outputStream: FileOutputStream? = null
-        try {
-            inputStream = FileInputStream(sourcePath)
-            outputStream = FileOutputStream(destinationPath)
-            inputStream.copyTo(outputStream)
-            scanPath(destinationPath) {}
-        } catch (ignored: FileNotFoundException) {
-        } finally {
-            inputStream?.close()
-            outputStream?.close()
-        }
-    }
-
-    private fun rotateFileByExif(path: String) {
-        val exif = ExifInterface(path)
+    private fun saveRotation(input: File, output: File) {
+        copyFile(input, output)
+        val exif = ExifInterface(output.absolutePath)
         val orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL)
         val orientationDegrees = (degreesForRotation(orientation) + mRotationDegrees) % 360
         exif.setAttribute(ExifInterface.TAG_ORIENTATION, rotationFromDegrees(orientationDegrees))
         exif.saveAttributes()
-        if (!config.keepLastModified) {
-            File(getCurrentPath()).setLastModified(System.currentTimeMillis())
-        }
-
-        mRotationDegrees = 0f
-        invalidateOptionsMenu()
-        toast(R.string.file_saved)
     }
 
     private fun degreesForRotation(orientation: Int) = when (orientation) {