Improve previews

Signed-off-by: Mario Danic <mario@lovelyhq.com>

app/src/main/java/com/nextcloud/talk/adapters/messages/ImageLoaderPayload.kt

@@ -0,0 +1,30 @@
+/*
+ * Nextcloud Talk application
+ *
+ * @author Mario Danic
+ * Copyright (C) 2017-2019 Mario Danic <mario@lovelyhq.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.nextcloud.talk.adapters.messages
+
+import android.os.Parcelable
+import kotlinx.android.parcel.Parcelize
+import kotlinx.android.parcel.RawValue
+
+@Parcelize
+data class ImageLoaderPayload(
+  val map: @RawValue HashMap<String, Any>?
+): Parcelable

app/src/main/java/com/nextcloud/talk/adapters/messages/MagicPreviewMessageViewHolder.kt

@@ -55,6 +55,7 @@ import com.nextcloud.talk.utils.DrawableUtils.getDrawableResourceIdForMimeType
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_ACCOUNT
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_FILE_ID
 import com.stfalcon.chatkit.messages.MessageHolders.IncomingImageMessageViewHolder
+import eu.davidea.flexibleadapter.Payload
 import io.reactivex.Single
 import io.reactivex.SingleObserver
 import io.reactivex.disposables.Disposable
@@ -109,14 +110,17 @@ class MagicPreviewMessageViewHolder(itemView: View?) : IncomingImageMessageViewH
           message.getSelectedIndividualHashMap()["name"]!!,
           message.getSelectedIndividualHashMap()["link"]!!, messageText!!
       )
+
       if (message.getSelectedIndividualHashMap().containsKey("mimetype")) {
-        image.load(getDrawableResourceIdForMimeType(message.getSelectedIndividualHashMap().get("mimetype")))
+        // we now handle this directly in imageloader
+        //image.load(getDrawableResourceIdForMimeType(message.getSelectedIndividualHashMap().get ("mimetype")))
       } else {
         fetchFileInformation(
             "/" + message.getSelectedIndividualHashMap()["path"],
             message.activeUser
         )
       }
+
       image.setOnClickListener { v: View? ->
         val accountString =
           message.activeUser.username + "@" + message.activeUser
@@ -209,6 +213,15 @@ class MagicPreviewMessageViewHolder(itemView: View?) : IncomingImageMessageViewH
         })
   }
 
+  override fun getPayloadForImageLoader(message: ChatMessage): Any {
+    val map = HashMap<String, Any>()
+    if (message.getSelectedIndividualHashMap().containsKey("mimetype")) {
+      map.put("mimetype", message.getSelectedIndividualHashMap().get("mimetype")!!)
+    }
+
+    return ImageLoaderPayload(map)
+  }
+
   init {
     ButterKnife.bind(this, itemView!!)
     sharedApplication!!.componentApplication.inject(this)

app/src/main/java/com/nextcloud/talk/controllers/ChatController.kt

@@ -58,9 +58,9 @@ import coil.transform.CircleCropTransformation
 import com.bluelinelabs.conductor.RouterTransaction
 import com.bluelinelabs.conductor.changehandler.HorizontalChangeHandler
 import com.bluelinelabs.conductor.changehandler.VerticalChangeHandler
-import com.facebook.drawee.backends.pipeline.Fresco
 import com.nextcloud.talk.R
 import com.nextcloud.talk.activities.MagicCallActivity
+import com.nextcloud.talk.adapters.messages.ImageLoaderPayload
 import com.nextcloud.talk.adapters.messages.MagicIncomingTextMessageViewHolder
 import com.nextcloud.talk.adapters.messages.MagicOutcomingTextMessageViewHolder
 import com.nextcloud.talk.adapters.messages.MagicPreviewMessageViewHolder
@@ -88,6 +88,7 @@ import com.nextcloud.talk.utils.ApiUtils
 import com.nextcloud.talk.utils.ConductorRemapping
 import com.nextcloud.talk.utils.DateUtils
 import com.nextcloud.talk.utils.DisplayUtils
+import com.nextcloud.talk.utils.DrawableUtils.getDrawableResourceIdForMimeType
 import com.nextcloud.talk.utils.KeyboardUtils
 import com.nextcloud.talk.utils.MagicCharPolicy
 import com.nextcloud.talk.utils.NotificationUtils
@@ -387,8 +388,24 @@ class ChatController(args: Bundle) : BaseController(), MessagesListAdapter
       adapter = MessagesListAdapter(
           conversationUser?.userId, messageHolders, ImageLoader { imageView, url, payload ->
         imageView.load(url) {
-          transformations(CircleCropTransformation())
-          if (conversationUser != null) {
+          if (url!!.contains("/avatar/")) {
+            transformations(CircleCropTransformation())
+          } else {
+            if (payload is ImageLoaderPayload) {
+              payload.map?.let {
+                if (payload.map.containsKey("mimetype")) {
+                  placeholder(
+                      getDrawableResourceIdForMimeType(
+                          payload.map.get("mimetype") as String?
+                      )
+                  )
+                }
+              }
+            }
+          }
+
+          if (conversationUser != null && url.startsWith(conversationUser.baseUrl) && url.contains(
+                  "index.php/core/preview?fileId=")) {
             addHeader("Authorization", conversationUser.getCredentials())
           }
         }
@@ -1137,7 +1154,8 @@ class ChatController(args: Bundle) : BaseController(), MessagesListAdapter
     isFromTheFuture: Boolean,
     timeout: Int
   ) {
-    val xChatLastGivenHeader: String? = response.headers().get("X-Chat-Last-Given")
+    val xChatLastGivenHeader: String? = response.headers()
+        .get("X-Chat-Last-Given")
     if (response.headers().size() > 0 && !TextUtils.isEmpty(xChatLastGivenHeader)) {
 
       val header = Integer.parseInt(xChatLastGivenHeader!!)