| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/ui/webui/memory_internals/memory_internals_handler.h" |
| |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/strings/string16.h" |
| #include "base/values.h" |
| #include "chrome/browser/ui/webui/memory_internals/memory_internals_proxy.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/render_frame_host.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/browser/web_ui.h" |
| |
| MemoryInternalsHandler::MemoryInternalsHandler() |
| : proxy_(new MemoryInternalsProxy()) {} |
| |
| MemoryInternalsHandler::~MemoryInternalsHandler() { |
| proxy_->Detach(); |
| } |
| |
| void MemoryInternalsHandler::RegisterMessages() { |
| DCHECK_CURRENTLY_ON(content::BrowserThread::UI); |
| proxy_->Attach(this); |
| |
| // Set callback functions called by JavaScript messages. |
| web_ui()->RegisterMessageCallback( |
| "update", |
| base::Bind(&MemoryInternalsHandler::OnJSUpdate, |
| base::Unretained(this))); |
| } |
| |
| void MemoryInternalsHandler::OnJSUpdate(const base::ListValue* list) { |
| proxy_->StartFetch(list); |
| } |
| |
| void MemoryInternalsHandler::OnUpdate(const base::string16& update) { |
| // Don't try to execute JavaScript in a RenderFrame that no longer exists. |
| content::RenderFrameHost* frame = web_ui()->GetWebContents()->GetMainFrame(); |
| if (frame) |
| frame->ExecuteJavaScript(update); |
| } |