messageview: simplify handling of external pictures, ditch ShowPicturesController

k9mail/src/main/java/com/fsck/k9/ui/messageview/MessageContainerView.java

@@ -35,7 +35,6 @@ import com.fsck.k9.helper.ClipboardManager;
 import com.fsck.k9.helper.Contacts;
 import com.fsck.k9.helper.Utility;
 import com.fsck.k9.mail.Address;
-import com.fsck.k9.mail.MessagingException;
 import com.fsck.k9.mailstore.AttachmentResolver;
 import com.fsck.k9.mailstore.AttachmentViewInfo;
 import com.fsck.k9.mailstore.MessageViewInfo;
@@ -76,6 +75,7 @@ public class MessageContainerView extends LinearLayout implements OnClickListene
     private SavedState mSavedState;
     private ClipboardManager mClipboardManager;
     private Map<AttachmentViewInfo, AttachmentView> attachments = new HashMap<>();
+    private boolean hasHiddenExternalImages;
 
     private String currentHtmlText;
     private AttachmentResolver currentAttachmentResolver;
@@ -403,8 +403,7 @@ public class MessageContainerView extends LinearLayout implements OnClickListene
 
     public void displayMessageViewContainer(MessageViewInfo messageViewInfo,
             final OnRenderingFinishedListener onRenderingFinishedListener, boolean automaticallyLoadPictures,
-            ShowPicturesController showPicturesController,
-            AttachmentViewCallback attachmentCallback) throws MessagingException {
+            AttachmentViewCallback attachmentCallback) {
 
         this.attachmentCallback = attachmentCallback;
 
@@ -414,11 +413,9 @@ public class MessageContainerView extends LinearLayout implements OnClickListene
 
         mHiddenAttachments.setVisibility(View.GONE);
 
-        boolean lookForImages = true;
         if (mSavedState != null) {
             if (mSavedState.showingPictures) {
                 setLoadPictures(true);
-                lookForImages = false;
             }
 
             if (mSavedState.hiddenAttachmentsVisible) {
@@ -429,12 +426,12 @@ public class MessageContainerView extends LinearLayout implements OnClickListene
         }
 
         String textToDisplay = messageViewInfo.text;
-        if (textToDisplay != null && lookForImages) {
-            if (Utility.hasExternalImages(textToDisplay) && !isShowingPictures()) {
+        if (textToDisplay != null && !isShowingPictures()) {
+            if (Utility.hasExternalImages(textToDisplay)) {
                 if (automaticallyLoadPictures) {
                     setLoadPictures(true);
                 } else {
-                    showPicturesController.notifyMessageContainerContainsPictures(this);
+                    hasHiddenExternalImages = true;
                 }
             }
         }
@@ -459,6 +456,10 @@ public class MessageContainerView extends LinearLayout implements OnClickListene
         }
     }
 
+    public boolean hasHiddenExternalImages() {
+        return hasHiddenExternalImages;
+    }
+
     public String wrapStatusMessage(String status) {
         return "<div style=\"text-align:center; color: grey;\">" + status + "</div>";
     }
@@ -478,7 +479,7 @@ public class MessageContainerView extends LinearLayout implements OnClickListene
         mMessageContentView.displayHtmlContentWithInlineAttachments("", null, null);
     }
 
-    public void renderAttachments(MessageViewInfo messageViewInfo) throws MessagingException {
+    public void renderAttachments(MessageViewInfo messageViewInfo) {
         if (messageViewInfo.attachments != null) {
             for (AttachmentViewInfo attachment : messageViewInfo.attachments) {
                 ViewGroup parent = attachment.firstClassAttachment ? mAttachments : mHiddenAttachments;

k9mail/src/main/java/com/fsck/k9/ui/messageview/MessageTopView.java

@@ -1,16 +1,12 @@
 package com.fsck.k9.ui.messageview;
 
 
-import java.util.ArrayList;
-import java.util.List;
-
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -22,13 +18,11 @@ import android.widget.TextView;
 
 import com.fsck.k9.Account;
 import com.fsck.k9.Account.ShowPictures;
-import com.fsck.k9.K9;
 import com.fsck.k9.R;
 import com.fsck.k9.helper.Contacts;
 import com.fsck.k9.mail.Address;
 import com.fsck.k9.mail.Flag;
 import com.fsck.k9.mail.Message;
-import com.fsck.k9.mail.MessagingException;
 import com.fsck.k9.mailstore.MessageViewInfo;
 import com.fsck.k9.ui.messageview.MessageContainerView.OnRenderingFinishedListener;
 import com.fsck.k9.view.MessageCryptoDisplayStatus;
@@ -37,7 +31,7 @@ import com.fsck.k9.view.ToolableViewAnimator;
 import org.openintents.openpgp.OpenPgpError;
 
 
-public class MessageTopView extends LinearLayout implements ShowPicturesController {
+public class MessageTopView extends LinearLayout {
 
     public static final int PROGRESS_MAX = 1000;
     public static final int PROGRESS_MAX_WITH_MARGIN = 950;
@@ -54,7 +48,6 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
     private Button mDownloadRemainder;
     private AttachmentViewCallback attachmentCallback;
     private Button showPicturesButton;
-    private List<MessageContainerView> messageContainerViewsWithPictures = new ArrayList<>();
     private boolean isShowingProgress;
 
     private MessageCryptoPresenter messageCryptoPresenter;
@@ -97,10 +90,10 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
     }
 
     private void showPicturesInAllContainerViews() {
-        for (MessageContainerView containerView : messageContainerViewsWithPictures) {
-            containerView.showPictures();
+        View messageContainerViewCandidate = containerView.getChildAt(0);
+        if (messageContainerViewCandidate instanceof MessageContainerView) {
+            ((MessageContainerView) messageContainerViewCandidate).showPictures();
         }
-
         hideShowPicturesButton();
     }
 
@@ -109,7 +102,7 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
         containerView.removeAllViews();
     }
 
-    public void setMessage(Account account, MessageViewInfo messageViewInfo) throws MessagingException {
+    public void setMessage(Account account, MessageViewInfo messageViewInfo) {
         resetView();
 
         setShowDownloadButton(messageViewInfo.message);
@@ -160,8 +153,7 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
         displayViewOnLoadFinished(false);
     }
 
-    private void showMessageContentView(Account account, MessageViewInfo messageViewInfo)
-            throws MessagingException {
+    private void showMessageContentView(Account account, MessageViewInfo messageViewInfo) {
         ShowPictures showPicturesSetting = account.getShowPictures();
         boolean automaticallyLoadPictures =
                 shouldAutomaticallyLoadPictures(showPicturesSetting, messageViewInfo.message);
@@ -175,7 +167,11 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
             public void onLoadFinished() {
                 displayViewOnLoadFinished(true);
             }
-        }, automaticallyLoadPictures, this, attachmentCallback);
+        }, automaticallyLoadPictures, attachmentCallback);
+
+        if (view.hasHiddenExternalImages()) {
+            showShowPicturesButton();
+        }
     }
 
     private void showMessageCryptoErrorView(Account account, MessageViewInfo messageViewInfo) {
@@ -231,16 +227,11 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
     }
 
     public void setHeaders(final Message message, Account account) {
-        try {
-            mHeaderContainer.populate(message, account);
-            if (account.isOpenPgpProviderConfigured()) {
-                mHeaderContainer.setCryptoStatus(MessageCryptoDisplayStatus.LOADING);
-            }
-            mHeaderContainer.setVisibility(View.VISIBLE);
-
-        } catch (Exception me) {
-            Log.e(K9.LOG_TAG, "setHeaders - error", me);
+        mHeaderContainer.populate(message, account);
+        if (account.isOpenPgpProviderConfigured()) {
+            mHeaderContainer.setCryptoStatus(MessageCryptoDisplayStatus.LOADING);
         }
+        mHeaderContainer.setVisibility(View.VISIBLE);
     }
 
     public void setOnToggleFlagClickListener(OnClickListener listener) {
@@ -297,13 +288,6 @@ public class MessageTopView extends LinearLayout implements ShowPicturesControll
         showPicturesButton.setVisibility(View.GONE);
     }
 
-    @Override
-    public void notifyMessageContainerContainsPictures(MessageContainerView messageContainerView) {
-        messageContainerViewsWithPictures.add(messageContainerView);
-
-        showShowPicturesButton();
-    }
-
     private boolean shouldAutomaticallyLoadPictures(ShowPictures showPicturesSetting, Message message) {
         return showPicturesSetting == ShowPictures.ALWAYS || shouldShowPicturesFromSender(showPicturesSetting, message);
     }

k9mail/src/main/java/com/fsck/k9/ui/messageview/MessageViewFragment.java

@@ -42,7 +42,6 @@ import com.fsck.k9.fragment.ProgressDialogFragment;
 import com.fsck.k9.helper.FileBrowserHelper;
 import com.fsck.k9.helper.FileBrowserHelper.FileBrowserFailOverCallback;
 import com.fsck.k9.mail.Flag;
-import com.fsck.k9.mail.MessagingException;
 import com.fsck.k9.mailstore.AttachmentViewInfo;
 import com.fsck.k9.mailstore.LocalMessage;
 import com.fsck.k9.mailstore.MessageViewInfo;
@@ -236,11 +235,7 @@ public class MessageViewFragment extends Fragment implements ConfirmationDialogF
 
     private void showMessage(MessageViewInfo messageViewInfo) {
         messageCryptoPresenter.setMessageViewInfo(messageViewInfo);
-        try {
-            mMessageView.setMessage(mAccount, messageViewInfo);
-        } catch (MessagingException e) {
-            Log.e(K9.LOG_TAG, "Error while trying to display message", e);
-        }
+        mMessageView.setMessage(mAccount, messageViewInfo);
     }
 
     private void displayMessageHeader(LocalMessage message) {

k9mail/src/main/java/com/fsck/k9/ui/messageview/ShowPicturesController.java

@@ -1,6 +0,0 @@
-package com.fsck.k9.ui.messageview;
-
-
-interface ShowPicturesController {
-    void notifyMessageContainerContainsPictures(MessageContainerView messageContainerView);
-}

k9mail/src/main/java/com/fsck/k9/view/MessageHeader.java

@@ -256,7 +256,7 @@ public class MessageHeader extends LinearLayout implements OnClickListener, OnLo
 
     }
 
-    public void populate(final Message message, final Account account) throws MessagingException {
+    public void populate(final Message message, final Account account) {
         final Contacts contacts = K9.showContactName() ? mContacts : null;
         final CharSequence from = MessageHelper.toFriendly(message.getFrom(), contacts);
         final CharSequence to = MessageHelper.toFriendly(message.getRecipients(Message.RecipientType.TO), contacts);