101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
// Copyright (c) 2013 GitHub, Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "renderer/atom_renderer_client.h"
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#include <algorithm>
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#include "common/node_bindings.h"
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#include "renderer/api/atom_renderer_bindings.h"
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#include "renderer/atom_render_view_observer.h"
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#include "common/v8/node_common.h"
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namespace atom {
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AtomRendererClient::AtomRendererClient()
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: node_bindings_(NodeBindings::Create(false)),
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atom_bindings_(new AtomRendererBindings) {
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}
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AtomRendererClient::~AtomRendererClient() {
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}
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void AtomRendererClient::RenderThreadStarted() {
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node_bindings_->Initialize();
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node_bindings_->PrepareMessageLoop();
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DCHECK(!global_env);
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// Create a default empty environment which would be used when we need to
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// run V8 code out of a window context (like running a uv callback).
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v8::HandleScope handle_scope(node_isolate);
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v8::Local<v8::Context> context = v8::Context::New(node_isolate);
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global_env = node::Environment::New(context);
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}
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void AtomRendererClient::RenderViewCreated(content::RenderView* render_view) {
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new AtomRenderViewObserver(render_view, this);
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}
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void AtomRendererClient::DidCreateScriptContext(WebKit::WebFrame* frame,
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v8::Handle<v8::Context> context,
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int extension_group,
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int world_id) {
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v8::Context::Scope scope(context);
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// Check the existance of process object to prevent duplicate initialization.
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if (context->Global()->Has(v8::String::New("process")))
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return;
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// Give the node loop a run to make sure everything is ready.
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node_bindings_->RunMessageLoop();
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// Setup node environment for each window.
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node::Environment* env = node_bindings_->CreateEnvironment(context);
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// Add atom-shell extended APIs.
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atom_bindings_->BindToFrame(frame);
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// Store the created environment.
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web_page_envs_.push_back(env);
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// Make uv loop being wrapped by window context.
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if (node_bindings_->uv_env() == NULL)
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node_bindings_->set_uv_env(env);
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}
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void AtomRendererClient::WillReleaseScriptContext(
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WebKit::WebFrame* frame,
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v8::Handle<v8::Context> context,
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int world_id) {
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node::Environment* env = node::Environment::GetCurrent(context);
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if (env == NULL) {
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LOG(ERROR) << "Encounter a non-node context when releasing script context";
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return;
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}
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// Clear the environment.
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web_page_envs_.erase(
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std::remove(web_page_envs_.begin(), web_page_envs_.end(), env),
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web_page_envs_.end());
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// Notice that we are not disposing the environment object here, because there
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// may still be pending uv operations in the uv loop, and when they got done
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// they would be needing the original environment.
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// So we are leaking the environment object here, just like Chrome leaking the
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// memory :) . Since it's only leaked when refreshing or unloading, so as long
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// as we make sure renderer process is restared then the memory would not be
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// leaked.
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// env->Dispose();
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// Wrap the uv loop with another environment.
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if (env == node_bindings_->uv_env()) {
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node::Environment* env = web_page_envs_.size() > 0 ? web_page_envs_[0] :
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NULL;
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node_bindings_->set_uv_env(env);
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}
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}
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} // namespace atom
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