import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/client/memory/panel.js

@@ -0,0 +1,75 @@
+/* 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 { Cc, Ci, Cu, Cr } = require("chrome");
+const { Task } = require("devtools/shared/task");
+const EventEmitter = require("devtools/shared/event-emitter");
+const { MemoryFront } = require("devtools/shared/fronts/memory");
+const HeapAnalysesClient = require("devtools/shared/heapsnapshot/HeapAnalysesClient");
+const promise = require("promise");
+
+function MemoryPanel(iframeWindow, toolbox) {
+  this.panelWin = iframeWindow;
+  this._toolbox = toolbox;
+
+  EventEmitter.decorate(this);
+}
+
+MemoryPanel.prototype = {
+  open: Task.async(function* () {
+    if (this._opening) {
+      return this._opening;
+    }
+
+    this.panelWin.gToolbox = this._toolbox;
+    this.panelWin.gTarget = this.target;
+
+    const rootForm = yield this.target.root;
+    this.panelWin.gFront = new MemoryFront(this.target.client,
+                                           this.target.form,
+                                           rootForm);
+    this.panelWin.gHeapAnalysesClient = new HeapAnalysesClient();
+
+    yield this.panelWin.gFront.attach();
+
+    this._opening = this.panelWin.initialize().then(() => {
+      this.isReady = true;
+      this.emit("ready");
+      return this;
+    });
+
+    return this._opening;
+  }),
+
+  // DevToolPanel API
+
+  get target() {
+    return this._toolbox.target;
+  },
+
+  destroy: Task.async(function* () {
+    // Make sure this panel is not already destroyed.
+    if (this._destroyer) {
+      return this._destroyer;
+    }
+
+    yield this.panelWin.gFront.detach();
+
+    this._destroyer = this.panelWin.destroy().then(() => {
+      // Destroy front to ensure packet handler is removed from client
+      this.panelWin.gFront.destroy();
+      this.panelWin.gHeapAnalysesClient.destroy();
+      this.panelWin = null;
+      this._opening = null;
+      this.isReady = false;
+      this.emit("destroyed");
+    });
+
+    return this._destroyer;
+  })
+};
+
+exports.MemoryPanel = MemoryPanel;