auto-select dependencies in the library-export dialog

HISTORY.md

@@ -6,6 +6,7 @@
     * export / import sprite-local custom block definitions from the palette
     * added "combinations" primitive to the palette
 * **Notable Changes:**
+    * exporting a library includes dependencies (auto-select all referenced blocks)
     * exporting / importing a sprite includes dependencies (global custom blocks and palette categories) 
     * moved "append", "reshape", "combinations" blocks down one group in the palette
 * **Notable Fixes:**
@@ -23,6 +24,7 @@
 ### 2022-03-22
 * blocks: fixed relabelling "sum", "product", "minimum" and "maximum" reporters
 * store: tweaked script deserialization
+* byob: exporting a library includes dependencies (auto-select all referenced blocks)
 
 ### 2022-03-21
 * updated frequency distribution analysis library, thanks, Brian!

snap.html

@@ -23,7 +23,7 @@
         <script src="src/gui.js?version=2022-03-17"></script>
         <script src="src/paint.js?version=2021-07-05"></script>
         <script src="src/lists.js?version=2022-02-07"></script>
-        <script src="src/byob.js?version=2022-03-17"></script>
+        <script src="src/byob.js?version=2022-03-22"></script>
         <script src="src/tables.js?version=2022-01-28"></script>
         <script src="src/sketch.js?version=2021-11-03"></script>
         <script src="src/video.js?version=2019-06-27"></script>

src/byob.js

@@ -111,7 +111,7 @@ ArgLabelMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.byob = '2022-March-17';
+modules.byob = '2022-March-22';
 
 // Declarations
 
@@ -4242,6 +4242,7 @@ BlockExportDialogMorph.prototype.buildContents = function () {
                         } else {
                             this.blocks.push(definition);
                         }
+                        this.collectDependencies();
                     },
                     null,
                     () => contains(this.blocks, definition),
@@ -4308,6 +4309,31 @@ BlockExportDialogMorph.prototype.selectNone = function () {
     });
 };
 
+// BlockExportDialogMorph dependency management
+
+BlockExportDialogMorph.prototype.collectDependencies = function () {
+    // add dependencies to the blocks:
+    this.dependencies().forEach(def => {
+        if (!contains(this.blocks, def)) {
+            this.blocks.push(def);
+        }
+    });
+    // refresh the checkmarks
+    this.body.contents.children.forEach(checkBox => {
+        checkBox.refresh();
+    });
+};
+
+BlockExportDialogMorph.prototype.dependencies = function () {
+    var deps = [];
+    this.blocks.forEach(def => def.collectDependencies(
+        [],
+        deps,
+        def.receiver
+    ));
+    return deps;
+};
+
 // BlockExportDialogMorph ops
 
 BlockExportDialogMorph.prototype.exportBlocks = function () {