53f6cbccbf* refactor: use mojo for electron internal IPC
* add sender_id, drop MessageSync
* remove usages of AtomFrameMsg_Message
* iwyu
* first draft of renderer->browser direction
* refactor to reuse a single ipc interface
* implement TakeHeapSnapshot through mojo
* the rest of the owl^WtakeHeapSnapshot mojofication
* remove no-op overrides in AtomRendererClient
* delete renderer-side ElectronApiServiceImpl when its pipe is destroyed
* looks like we don't need to overlay the renderer manifest after all
* don't try to send 2 replies to a sync rpc
* undo changes to manifests.cc
* unify sandboxed + unsandboxed ipc events
* lint
* register ElectronBrowser mojo service on devtools WebContents
* fix takeHeapSnapshopt failure paths
* {electron_api => atom}::mojom
* add send_to_all to ElectronRenderer::Message
* keep interface alive until callback is called
* review comments
* use GetContext from RendererClientBase
* robustify a test that uses window.open
* MessageSync posts a task to put sync messages in the same queue as async ones
* add v8::MicrotasksScope and node::CallbackScope
* iwyu
* use weakptr to api::WebContents instead of Unretained
* make MessageSync an asynchronous message & use non-associated interface
* iwyu + comments
* remove unused WeakPtrFactory
* inline OnRendererMessage[Sync]
* cleanups & comments
* use helper methods instead of inline lambdas
* remove unneeded async in test
* add mojo to manifests deps
* add gn check for //electron/manifests and mojo
* don't register renderer side service until preload has been run
* update gn check targets list
* move interface registration back to RenderFrameCreated
116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
// Copyright (c) 2014 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ATOM_BROWSER_API_EVENT_EMITTER_H_
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#define ATOM_BROWSER_API_EVENT_EMITTER_H_
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#include <utility>
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#include <vector>
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#include "atom/common/api/event_emitter_caller.h"
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#include "base/optional.h"
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#include "content/public/browser/browser_thread.h"
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#include "electron/atom/common/api/api.mojom.h"
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#include "native_mate/wrappable.h"
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namespace content {
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class RenderFrameHost;
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}
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namespace mate {
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namespace internal {
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v8::Local<v8::Object> CreateJSEvent(
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v8::Isolate* isolate,
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v8::Local<v8::Object> object,
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content::RenderFrameHost* sender,
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base::Optional<atom::mojom::ElectronBrowser::MessageSyncCallback> callback);
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v8::Local<v8::Object> CreateCustomEvent(v8::Isolate* isolate,
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v8::Local<v8::Object> object,
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v8::Local<v8::Object> event);
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v8::Local<v8::Object> CreateEventFromFlags(v8::Isolate* isolate, int flags);
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} // namespace internal
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// Provide helperers to emit event in JavaScript.
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template <typename T>
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class EventEmitter : public Wrappable<T> {
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public:
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typedef std::vector<v8::Local<v8::Value>> ValueArray;
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// Make the convinient methods visible:
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// https://isocpp.org/wiki/faq/templates#nondependent-name-lookup-members
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v8::Isolate* isolate() const { return Wrappable<T>::isolate(); }
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v8::Local<v8::Object> GetWrapper() const {
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return Wrappable<T>::GetWrapper();
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}
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// this.emit(name, event, args...);
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template <typename... Args>
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bool EmitCustomEvent(const base::StringPiece& name,
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v8::Local<v8::Object> event,
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const Args&... args) {
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return EmitWithEvent(
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name, internal::CreateCustomEvent(isolate(), GetWrapper(), event),
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args...);
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}
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// this.emit(name, new Event(flags), args...);
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template <typename... Args>
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bool EmitWithFlags(const base::StringPiece& name,
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int flags,
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const Args&... args) {
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return EmitCustomEvent(
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name, internal::CreateEventFromFlags(isolate(), flags), args...);
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}
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// this.emit(name, new Event(), args...);
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template <typename... Args>
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bool Emit(const base::StringPiece& name, const Args&... args) {
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return EmitWithSender(name, nullptr, base::nullopt, args...);
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}
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// this.emit(name, new Event(sender, message), args...);
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template <typename... Args>
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bool EmitWithSender(
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const base::StringPiece& name,
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content::RenderFrameHost* sender,
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base::Optional<atom::mojom::ElectronBrowser::MessageSyncCallback>
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callback,
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const Args&... args) {
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v8::Locker locker(isolate());
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v8::HandleScope handle_scope(isolate());
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v8::Local<v8::Object> wrapper = GetWrapper();
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if (wrapper.IsEmpty()) {
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return false;
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}
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v8::Local<v8::Object> event = internal::CreateJSEvent(
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isolate(), wrapper, sender, std::move(callback));
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return EmitWithEvent(name, event, args...);
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}
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protected:
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EventEmitter() {}
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private:
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// this.emit(name, event, args...);
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template <typename... Args>
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bool EmitWithEvent(const base::StringPiece& name,
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v8::Local<v8::Object> event,
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const Args&... args) {
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DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
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v8::Locker locker(isolate());
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v8::HandleScope handle_scope(isolate());
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EmitEvent(isolate(), GetWrapper(), name, event, args...);
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return event->Get(StringToV8(isolate(), "defaultPrevented"))
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->BooleanValue(isolate());
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}
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DISALLOW_COPY_AND_ASSIGN(EventEmitter);
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};
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} // namespace mate
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#endif // ATOM_BROWSER_API_EVENT_EMITTER_H_
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