[macos] Add `showAnnotations:` methods (#5749)

SDK
- Ported `showAnnotations:animated:` and `showAnnotations:edgePadding:animated:` from the iOS SDK.

Demo App
- Added "Show All Annotations" debug menu item with ⇧⌘A shortcut key.
- Disabled "Add Animated Annotation" debug menu item when the annotation already shown.

2 files changed, 21 insertions, 7 deletions

diff --git a/platform/macos/app/Base.lproj/MainMenu.xib b/platform/macos/app/Base.lproj/MainMenu.xib
index 6b636eb8ad..4d81289314 100644
--- a/platform/macos/app/Base.lproj/MainMenu.xib
+++ b/platform/macos/app/Base.lproj/MainMenu.xib
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="11163.2" systemVersion="15F34" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="10117" systemVersion="15G26a" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="11163.2"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="10117"/>
     </dependencies>
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
@@ -505,6 +505,12 @@
                                     <action selector="drawAnimatedAnnotation:" target="-1" id="CYM-WB-s97"/>
                                 </connections>
                             </menuItem>
+                            <menuItem title="Show All Annnotations" keyEquivalent="A" id="yMj-uM-8SN">
+                                <modifierMask key="keyEquivalentModifierMask" shift="YES" command="YES"/>
+                                <connections>
+                                    <action selector="showAllAnnotations:" target="-1" id="ahr-OR-Em2"/>
+                                </connections>
+                            </menuItem>
                             <menuItem title="Remove All Annotations" id="6rC-68-vk0">
                                 <string key="keyEquivalent" base64-UTF8="YES">
 CA
diff --git a/platform/macos/app/MapDocument.m b/platform/macos/app/MapDocument.m
index f30b83274a..81fd85e156 100644
--- a/platform/macos/app/MapDocument.m
+++ b/platform/macos/app/MapDocument.m
@@ -65,6 +65,7 @@ NS_ARRAY_OF(id <MGLAnnotation>) *MBXFlattenedShapes(NS_ARRAY_OF(id <MGLAnnotatio
     BOOL _randomizesCursorsOnDroppedPins;
     BOOL _isTouringWorld;
     BOOL _isShowingPolygonAndPolylineAnnotations;
+    BOOL _isShowingAnimatedAnnotation;
 }
 
 #pragma mark Lifecycle
@@ -329,9 +330,14 @@ NS_ARRAY_OF(id <MGLAnnotation>) *MBXFlattenedShapes(NS_ARRAY_OF(id <MGLAnnotatio
     }
 }
 
+- (IBAction)showAllAnnotations:(id)sender {
+    [self.mapView showAnnotations:self.mapView.annotations animated:YES];
+}
+
 - (IBAction)removeAllAnnotations:(id)sender {
     [self.mapView removeAnnotations:self.mapView.annotations];
     _isShowingPolygonAndPolylineAnnotations = NO;
+    _isShowingAnimatedAnnotation = NO;
 }
 
 - (IBAction)startWorldTour:(id)sender {
@@ -409,6 +415,8 @@ NS_ARRAY_OF(id <MGLAnnotation>) *MBXFlattenedShapes(NS_ARRAY_OF(id <MGLAnnotatio
     DroppedPinAnnotation *annotation = [[DroppedPinAnnotation alloc] init];
     [self.mapView addAnnotation:annotation];
 
+    _isShowingAnimatedAnnotation = YES;
+
     [NSTimer scheduledTimerWithTimeInterval:1.0/60.0
                                      target:self
                                    selector:@selector(updateAnimatedAnnotation:)
@@ -632,10 +640,13 @@ NS_ARRAY_OF(id <MGLAnnotation>) *MBXFlattenedShapes(NS_ARRAY_OF(id <MGLAnnotatio
     if (menuItem.action == @selector(dropManyPins:)) {
         return YES;
     }
+    if (menuItem.action == @selector(drawPolygonAndPolyLineAnnotations:)) {
+        return !_isShowingPolygonAndPolylineAnnotations;
+    }
     if (menuItem.action == @selector(drawAnimatedAnnotation:)) {
-        return YES;
+        return !_isShowingAnimatedAnnotation;
     }
-    if (menuItem.action == @selector(removeAllAnnotations:)) {
+    if (menuItem.action == @selector(showAllAnnotations:) || menuItem.action == @selector(removeAllAnnotations:)) {
         return self.mapView.annotations.count > 0;
     }
     if (menuItem.action == @selector(startWorldTour:)) {
@@ -644,9 +655,6 @@ NS_ARRAY_OF(id <MGLAnnotation>) *MBXFlattenedShapes(NS_ARRAY_OF(id <MGLAnnotatio
     if (menuItem.action == @selector(stopWorldTour:)) {
         return _isTouringWorld;
     }
-    if (menuItem.action == @selector(drawPolygonAndPolyLineAnnotations:)) {
-        return !_isShowingPolygonAndPolylineAnnotations;
-    }
     if (menuItem.action == @selector(addOfflinePack:)) {
         NSURL *styleURL = self.mapView.styleURL;
         return !styleURL.isFileURL;