Add custom text selection action to compose tweet from selected text

twidere/src/main/AndroidManifest.xml

@@ -249,6 +249,13 @@
                 <data android:mimeType="image/*"/>
                 <data android:mimeType="text/plain"/>
             </intent-filter>
+            <intent-filter android:label="@string/title_compose">
+                <action android:name="android.intent.action.PROCESS_TEXT" />
+
+                <category android:name="android.intent.category.DEFAULT"/>
+
+                <data android:mimeType="text/plain"/>
+            </intent-filter>
 
             <meta-data
                 android:name="android.support.PARENT_ACTIVITY"

twidere/src/main/kotlin/org/mariotaku/twidere/activity/ComposeActivity.kt

@@ -32,6 +32,7 @@ import android.graphics.Canvas
 import android.graphics.Rect
 import android.location.*
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import androidx.core.app.ActivityCompat
 import androidx.core.widget.TextViewCompat
@@ -1145,6 +1146,12 @@ class ComposeActivity : BaseActivity(), OnMenuItemClickListener, OnClickListener
         } else {
             editText.setSelection(selection.coerceIn(0..editText.length()))
         }
+        if (intent.hasExtra(Intent.EXTRA_PROCESS_TEXT) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
+            val charSequences = intent.getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT)
+            charSequences?.let {
+                editText.setText(it.toString())
+            }
+        }
         editText.requestFocus()
         return true
     }