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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/ui/webui/memory_internals/memory_internals_handler.h" | |
6 | |
7 #include <vector> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/bind_helpers.h" | |
11 #include "base/strings/string16.h" | |
12 #include "base/values.h" | |
13 #include "chrome/browser/ui/webui/memory_internals/memory_internals_proxy.h" | |
14 #include "content/public/browser/browser_thread.h" | |
15 #include "content/public/browser/render_frame_host.h" | |
16 #include "content/public/browser/web_contents.h" | |
17 #include "content/public/browser/web_ui.h" | |
18 | |
19 MemoryInternalsHandler::MemoryInternalsHandler() | |
20 : proxy_(new MemoryInternalsProxy()) {} | |
21 | |
22 MemoryInternalsHandler::~MemoryInternalsHandler() { | |
23 proxy_->Detach(); | |
24 } | |
25 | |
26 void MemoryInternalsHandler::RegisterMessages() { | |
27 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); | |
28 proxy_->Attach(this); | |
29 | |
30 // Set callback functions called by JavaScript messages. | |
31 web_ui()->RegisterMessageCallback( | |
32 "update", | |
33 base::Bind(&MemoryInternalsHandler::OnJSUpdate, | |
34 base::Unretained(this))); | |
35 } | |
36 | |
37 void MemoryInternalsHandler::OnJSUpdate(const base::ListValue* list) { | |
38 proxy_->StartFetch(list); | |
39 } | |
40 | |
41 void MemoryInternalsHandler::OnUpdate(const base::string16& update) { | |
42 // Don't try to execute JavaScript in a RenderFrame that no longer exists. | |
43 content::RenderFrameHost* frame = web_ui()->GetWebContents()->GetMainFrame(); | |
44 if (frame) | |
45 frame->ExecuteJavaScript(update); | |
46 } | |
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