1 files changed, 58 insertions, 0 deletions
diff --git a/devtools/shared/specs/style-sheet.js b/devtools/shared/specs/style-sheet.js
new file mode 100644
index 0000000000..327d2b8ec4
--- /dev/null
+++ b/devtools/shared/specs/style-sheet.js
@@ -0,0 +1,58 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const {
+  Arg,
+  RetVal,
+  generateActorSpec,
+  types,
+} = require("devtools/shared/protocol");
+
+// Load the "mediarule" type used in this file.
+require("devtools/shared/specs/media-rule");
+
+types.addActorType("stylesheet");
+
+const styleSheetSpec = generateActorSpec({
+  typeName: "stylesheet",
+
+  events: {
+    "property-change": {
+      type: "propertyChange",
+      property: Arg(0, "string"),
+      value: Arg(1, "json"),
+    },
+    "style-applied": {
+      type: "styleApplied",
+      kind: Arg(0, "number"),
+      styleSheet: Arg(1, "stylesheet"),
+      cause: Arg(2, "nullable:string"),
+    },
+    "media-rules-changed": {
+      type: "mediaRulesChanged",
+      rules: Arg(0, "array:mediarule"),
+    },
+  },
+
+  methods: {
+    // This is only called from StyleSheetFront#guessIndentation, which is only called
+    // from RuleRewriter#getDefaultIndentation when the rule's parent stylesheet isn't
+    // a resource. Once we support StyleSheet resource everywhere, this method can be
+    // removed (See Bug 1672090 for more information).
+    getText: {
+      response: {
+        text: RetVal("longstring"),
+      },
+    },
+    getMediaRules: {
+      request: {},
+      response: {
+        mediaRules: RetVal("nullable:array:mediarule"),
+      },
+    },
+  },
+});
+
+exports.styleSheetSpec = styleSheetSpec;