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Add image save and share actions to media viewer (#857)
* Add image save button * Show media buttons in overlay * Show snackbar on save success, failure
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13 changes: 13 additions & 0 deletions
13
app/src/main/java/com/capyreader/app/ui/articles/media/Colors.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| package com.capyreader.app.ui.articles.media | ||
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| import androidx.compose.ui.graphics.Color | ||
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| object MediaColors { | ||
| val textColor = Color.White.copy(0.8f) | ||
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| val buttonContentColor = Color.White | ||
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| val buttonOutlineColor = Color.White | ||
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| val buttonContainerColor = Color.Transparent | ||
| } |
96 changes: 96 additions & 0 deletions
96
app/src/main/java/com/capyreader/app/ui/articles/media/ImageSaver.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package com.capyreader.app.ui.articles.media | ||
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| import android.content.ContentValues | ||
| import android.content.Context | ||
| import android.graphics.Bitmap | ||
| import android.net.Uri | ||
| import android.os.Environment | ||
| import android.provider.MediaStore | ||
| import androidx.core.graphics.drawable.toBitmap | ||
| import androidx.core.net.toUri | ||
| import coil.executeBlocking | ||
| import coil.imageLoader | ||
| import coil.request.ImageRequest | ||
| import com.capyreader.app.common.MD5 | ||
| import com.capyreader.app.common.externalImageCacheFile | ||
| import com.capyreader.app.common.fileURI | ||
| import com.jocmp.capy.logging.CapyLog | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.withContext | ||
| import java.io.ByteArrayOutputStream | ||
| import java.io.FileOutputStream | ||
| import java.io.IOException | ||
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| object ImageSaver { | ||
| suspend fun saveImage(imageUrl: String, context: Context): Result<Uri> { | ||
| return withContext(Dispatchers.IO) { | ||
| return@withContext try { | ||
| val bitmap = | ||
| createBitmap(imageUrl, context) ?: throw IOException("Failed to generate image") | ||
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| val contentValues = ContentValues().apply { | ||
| put(MediaStore.MediaColumns.DISPLAY_NAME, jpegFileName(imageUrl)) | ||
| put(MediaStore.MediaColumns.MIME_TYPE, "image/jpeg") | ||
| put( | ||
| MediaStore.MediaColumns.RELATIVE_PATH, | ||
| "${Environment.DIRECTORY_PICTURES}/Capy" | ||
| ) | ||
| } | ||
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| val uri = context.contentResolver.insert( | ||
| MediaStore.Images.Media.EXTERNAL_CONTENT_URI, | ||
| contentValues | ||
| ) ?: throw IOException("Failed to create MediaStore entry") | ||
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| context.contentResolver.openOutputStream(uri)?.use { outputStream -> | ||
| outputStream.write(jpegStream(bitmap)) | ||
| } ?: throw IOException("Failed to open output stream") | ||
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| Result.success(uri) | ||
| } catch (e: Exception) { | ||
| CapyLog.error("save_img", error = e) | ||
| Result.failure(e) | ||
| } | ||
| } | ||
| } | ||
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| suspend fun shareImage(imageUrl: String, context: Context): Result<Uri> { | ||
| return withContext(Dispatchers.IO) { | ||
| return@withContext try { | ||
| val bitmap = | ||
| createBitmap(imageUrl, context) ?: throw IOException("Failed to generate image") | ||
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| val target = context.externalImageCacheFile(jpegFileName(imageUrl)) | ||
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| context.contentResolver.openFileDescriptor(target.toUri(), "w")?.use { descriptor -> | ||
| FileOutputStream(descriptor.fileDescriptor).use { | ||
| it.write(jpegStream(bitmap)) | ||
| } | ||
| } | ||
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| Result.success(context.fileURI(target)) | ||
| } catch (e: Exception) { | ||
| CapyLog.error("share_img", error = e) | ||
| Result.failure(e) | ||
| } | ||
| } | ||
| } | ||
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| private fun jpegStream(bitmap: Bitmap): ByteArray { | ||
| val byteArrayOutputStream = ByteArrayOutputStream() | ||
| bitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream) | ||
| return byteArrayOutputStream.toByteArray() | ||
| } | ||
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| private fun jpegFileName(imageUrl: String): String { | ||
| return "${MD5.from(imageUrl)}.jpg" | ||
| } | ||
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| private fun createBitmap(imageUrl: String, context: Context): Bitmap? { | ||
| val imageRequest = ImageRequest.Builder(context) | ||
| .data(imageUrl) | ||
| .build() | ||
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| return context.imageLoader.executeBlocking(imageRequest).drawable?.toBitmap() | ||
| } | ||
| } |
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