execCommand() feature (#2641)

* execCommand() feature

* add execCommand spec

* Better description

* Minor change to the description

Author: captainbrosset

features/execcommand.yml

@@ -0,0 +1,21 @@
+name: execCommand()
+description: The `execCommand()` method reads and writes from the clipboard and performs editing commands on editable text, such as changing the font name or style. Related methods check whether commands are supported, enabled, or applied.
+spec: https://w3c.github.io/editing/docs/execCommand/
+group: clipboard
+discouraged:
+  according_to:
+    - https://w3c.github.io/editing/docs/execCommand/
+  alternatives:
+    - async-clipboard
+    - contenteditable
+compat_features:
+  - api.Document.execCommand
+  - api.Document.execCommand.copy
+  - api.Document.execCommand.cut
+  - api.Document.execCommand.defaultParagraphSeparator
+  - api.Document.execCommand.insertBrOnReturn
+  - api.Document.queryCommandEnabled
+  - api.Document.queryCommandIndeterm
+  - api.Document.queryCommandState
+  - api.Document.queryCommandSupported
+  - api.Document.queryCommandValue

features/execcommand.yml.dist

@@ -0,0 +1,54 @@
+# Generated from: execcommand.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    firefox: "69"
+    firefox_android: "79"
+compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "69"
+  #   firefox_android: "79"
+  #   safari: "1.3"
+  #   safari_ios: "1"
+  - api.Document.execCommand
+
+  # baseline: false
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "69"
+  #   firefox_android: "79"
+  #   safari: "2"
+  #   safari_ios: "1"
+  - api.Document.queryCommandEnabled
+  - api.Document.queryCommandIndeterm
+  - api.Document.queryCommandState
+  - api.Document.queryCommandSupported
+  - api.Document.queryCommandValue
+
+  # baseline: false
+  # support:
+  #   chrome: "42"
+  #   chrome_android: "42"
+  #   edge: "12"
+  #   firefox: "69"
+  #   firefox_android: "79"
+  #   safari: "10"
+  #   safari_ios: "10"
+  - api.Document.execCommand.copy
+  - api.Document.execCommand.cut
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   firefox: "69"
+  #   firefox_android: "79"
+  - api.Document.execCommand.defaultParagraphSeparator
+  - api.Document.execCommand.insertBrOnReturn

scripts/specs.ts

@@ -108,6 +108,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://www.w3.org/TR/DOM-Level-2-Style/",
         "Allowed because the css-object-model-discouraged feature points to it."
+    ],
+    [
+        "https://w3c.github.io/editing/docs/execCommand/",
+        "Allowed because the execCommand feature points to it, to inform users that the feature is obsolete. The spec exists in a draft state only and will never move out of draft. It serves as a reference."
     ]
 ];