Introduce message cell footer view.

Signal/src/ViewControllers/ConversationView/Cells/OWSMessageBubbleView.m

@@ -383,15 +383,14 @@ NS_ASSUME_NONNULL_BEGIN
         }
     }
 
-    OWSMessageTextView *_Nullable bodyTextView = nil;
+    UIStackView *_Nullable textStackView = nil;
-    UIStackView *_Nullable textStackView = [UIStackView new];
 
     // We render malformed messages as "empty text" messages,
     // so create a text view if there is no body media view.
     if (self.hasBodyText || !bodyMediaView) {
+        OWSMessageTextView *_Nullable bodyTextView = nil;
         bodyTextView = [self configureBodyTextView];
-    }
+
-    if (bodyTextView) {
         textStackView = [UIStackView new];
         textStackView.axis = UILayoutConstraintAxisVertical;
         textStackView.alignment = UIStackViewAlignmentFill;
@@ -406,8 +405,6 @@ NS_ASSUME_NONNULL_BEGIN
         [textStackView addArrangedSubview:bodyTextView];
 
         [self.viewConstraints addObjectsFromArray:@[
-            //            [bodyTextView autoSetDimension:ALDimensionWidth toSize:bodyTextContentSize.width
-            //            relation:NSLayoutRelationLessThanOrEqual],
             [bodyTextView autoSetDimension:ALDimensionHeight toSize:bodyTextContentSize.height],
         ]];
 
@@ -415,8 +412,6 @@ NS_ASSUME_NONNULL_BEGIN
         if (tapForMoreLabel) {
             [textStackView addArrangedSubview:tapForMoreLabel];
             [self.viewConstraints addObjectsFromArray:@[
-                //                                                        [tapForMoreLabel autoPinEdge:ALEdgeTop
-                //                                                        toEdge:ALEdgeBottom ofView:lastSubview],
                 [tapForMoreLabel autoSetDimension:ALDimensionHeight toSize:self.tapForMoreHeight],
             ]];
         }
@@ -426,6 +421,7 @@ NS_ASSUME_NONNULL_BEGIN
     [footerView configureWithConversationViewItem:self.viewItem];
     if (textStackView) {
         [textStackView addArrangedSubview:self.footerView];
+        [self.footerView setHasShadows:NO viewItem:self.viewItem];
     } else if (bodyMediaView) {
         [bodyMediaView addSubview:footerView];
 
@@ -435,7 +431,7 @@ NS_ASSUME_NONNULL_BEGIN
             [footerView autoPinTrailingToSuperviewMarginWithInset:self.conversationStyle.textInsetHorizontal],
             [footerView autoPinBottomToSuperviewMarginWithInset:self.conversationStyle.textInsetBottom],
         ]];
-        // TODO: Drop shadow.
+        [self.footerView setHasShadows:YES viewItem:self.viewItem];
     } else {
         // Display footer over media.
         OWSFail(@"%@ could not display footer.", self.logTag);
@@ -1023,7 +1019,7 @@ NS_ASSUME_NONNULL_BEGIN
     //       contact shares.
     if (self.hasFooter && self.hasBodyText) {
         CGSize footerSize = [self.footerView measureWithConversationViewItem:self.viewItem];
-        cellSize.width = MAX(cellSize.width, footerSize.width);
+        cellSize.width = MAX(cellSize.width, footerSize.width + self.conversationStyle.textInsetHorizontal * 2);
         cellSize.height += self.textViewVSpacing + footerSize.height;
     }
 
@@ -1110,6 +1106,10 @@ NS_ASSUME_NONNULL_BEGIN
     self.quotedMessageView = nil;
 
     [self.footerView removeFromSuperview];
+
+    for (UIView *subview in self.stackView.subviews) {
+        [subview removeFromSuperview];
+    }
 }
 
 #pragma mark - Gestures

Signal/src/ViewControllers/ConversationView/Cells/OWSMessageFooterView.h

@@ -12,6 +12,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (CGSize)measureWithConversationViewItem:(ConversationViewItem *)viewItem;
 
+- (void)setHasShadows:(BOOL)hasShadows viewItem:(ConversationViewItem *)viewItem;
+
 @end
 
 NS_ASSUME_NONNULL_END

Signal/src/ViewControllers/ConversationView/Cells/OWSMessageFooterView.m

@@ -84,7 +84,7 @@ NS_ASSUME_NONNULL_BEGIN
 - (CGFloat)statusIndicatorSize
 {
     // TODO: Review constant.
-    return 20.f;
+    return 16.f;
 }
 
 - (CGFloat)hSpacing
@@ -100,10 +100,9 @@ NS_ASSUME_NONNULL_BEGIN
     OWSAssert(viewItem);
 
     [self configureLabelsWithConversationViewItem:viewItem];
-    ;
 
     // TODO:
-    self.statusIndicatorView.backgroundColor = [UIColor ows_materialBlueColor];
+    self.statusIndicatorView.backgroundColor = [UIColor redColor];
 }
 
 - (void)configureLabelsWithConversationViewItem:(ConversationViewItem *)viewItem
@@ -123,7 +122,6 @@ NS_ASSUME_NONNULL_BEGIN
     OWSAssert(viewItem);
 
     [self configureLabelsWithConversationViewItem:viewItem];
-    ;
 
     CGSize result = CGSizeZero;
     result.height
@@ -146,6 +144,42 @@ NS_ASSUME_NONNULL_BEGIN
     return statusMessage;
 }
 
+#pragma mark - Shadows
+
+- (void)setHasShadows:(BOOL)hasShadows viewItem:(ConversationViewItem *)viewItem
+{
+    // TODO: Constants
+    for (UIView *subview in @[
+             self.timestampLabel,
+             self.statusLabel,
+             self.statusIndicatorView,
+         ]) {
+        if (hasShadows) {
+            subview.layer.shadowColor = [UIColor blackColor].CGColor;
+            subview.layer.shadowOpacity = 0.35f;
+            subview.layer.shadowOffset = CGSizeZero;
+            subview.layer.shadowRadius = 0.5f;
+        } else {
+            subview.layer.shadowColor = nil;
+            subview.layer.shadowOpacity = 0.f;
+            subview.layer.shadowOffset = CGSizeZero;
+            subview.layer.shadowRadius = 0.f;
+        }
+    }
+
+    UIColor *textColor;
+    if (hasShadows) {
+        textColor = [UIColor whiteColor];
+    } else if (viewItem.interaction.interactionType == OWSInteractionType_IncomingMessage) {
+        // TODO:
+        textColor = [UIColor lightGrayColor];
+    } else {
+        textColor = [UIColor whiteColor];
+    }
+    self.timestampLabel.textColor = textColor;
+    self.statusLabel.textColor = textColor;
+}
+
 @end
 
 NS_ASSUME_NONNULL_END