Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/devtools/server/actors/array-buffer.js b/devtools/server/actors/array-buffer.js
new file mode 100644
index 0000000000..005ed14617
--- /dev/null
+++ b/devtools/server/actors/array-buffer.js
@@ -0,0 +1,67 @@
+/* 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";
+
+var protocol = require("devtools/shared/protocol");
+const { arrayBufferSpec } = require("devtools/shared/specs/array-buffer");
+
+/**
+ * Creates an actor for the specified ArrayBuffer.
+ *
+ * @param {DevToolsServerConnection} conn
+ *    The server connection.
+ * @param buffer ArrayBuffer
+ *        The buffer.
+ */
+const ArrayBufferActor = protocol.ActorClassWithSpec(arrayBufferSpec, {
+  initialize: function(conn, buffer) {
+    protocol.Actor.prototype.initialize.call(this, conn);
+    this.buffer = buffer;
+    this.bufferLength = buffer.byteLength;
+  },
+
+  rawValue: function() {
+    return this.buffer;
+  },
+
+  form: function() {
+    return {
+      actor: this.actorID,
+      length: this.bufferLength,
+      // The `typeName` is read in the source spec when reading "sourcedata"
+      // which can either be an ArrayBuffer actor or a LongString actor.
+      typeName: this.typeName,
+    };
+  },
+
+  slice(start, count) {
+    const slice = new Uint8Array(this.buffer, start, count);
+    const parts = [];
+    let offset = 0;
+    const PortionSize = 0x6000; // keep it divisible by 3 for btoa() and join()
+    while (offset + PortionSize < count) {
+      parts.push(
+        btoa(
+          String.fromCharCode.apply(
+            null,
+            slice.subarray(offset, offset + PortionSize)
+          )
+        )
+      );
+      offset += PortionSize;
+    }
+    parts.push(
+      btoa(String.fromCharCode.apply(null, slice.subarray(offset, count)))
+    );
+    return {
+      from: this.actorID,
+      encoded: parts.join(""),
+    };
+  },
+});
+
+module.exports = {
+  ArrayBufferActor,
+};