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// Copyright 2015 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_BROWSER_DEBUG_CONSOLE_H_
#define COBALT_BROWSER_DEBUG_CONSOLE_H_
#if !defined(ENABLE_DEBUGGER)
#error "Debugger is not enabled in this build."
#endif // !ENABLE_DEBUGGER
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/logging.h"
#include "cobalt/base/token.h"
#include "cobalt/browser/lifecycle_observer.h"
#include "cobalt/browser/web_module.h"
#include "cobalt/debug/console/debug_console_mode.h"
#include "cobalt/debug/console/debug_hub.h"
#include "cobalt/dom/input_event_init.h"
#include "cobalt/dom/keyboard_event_init.h"
#include "cobalt/dom/pointer_event_init.h"
#include "cobalt/dom/wheel_event_init.h"
#include "cobalt/dom/window.h"
#include "url/gurl.h"
namespace cobalt {
namespace browser {
// DebugConsole wraps the web module and all components used to implement the
// debug console.
class DebugConsole : public LifecycleObserver {
public:
DebugConsole(
base::ApplicationState initial_application_state,
const WebModule::OnRenderTreeProducedCallback&
render_tree_produced_callback,
network::NetworkModule* network_module,
const cssom::ViewportSize& window_dimensions,
render_tree::ResourceProvider* resource_provider,
float layout_refresh_rate,
const debug::CreateDebugClientCallback& create_debug_client_callback,
const base::Closure& maybe_freeze_callback);
~DebugConsole();
// Filters a key event.
// Returns true if the event should be passed on to other handlers,
// false if it was consumed within this function.
bool FilterKeyEvent(base::Token type, const dom::KeyboardEventInit& event);
// Filters a pointer event.
// Returns true if the event should be passed on to other handlers,
// false if it was consumed within this function.
bool FilterPointerEvent(base::Token type, const dom::PointerEventInit& event);
// Filters a wheel event.
// Returns true if the event should be passed on to other handlers,
// false if it was consumed within this function.
bool FilterWheelEvent(base::Token type, const dom::WheelEventInit& event);
#if SB_API_VERSION >= 12 || SB_HAS(ON_SCREEN_KEYBOARD)
// Filters an on screen keyboard input event.
// Returns true if the event should be passed on to other handlers,
// false if it was consumed within this function.
bool FilterOnScreenKeyboardInputEvent(base::Token type,
const dom::InputEventInit& event);
#endif // SB_API_VERSION >= 12 ||
// SB_HAS(ON_SCREEN_KEYBOARD)
const WebModule& web_module() const { return *web_module_; }
WebModule& web_module() { return *web_module_; }
// Cycles through each different possible debug console visibility mode.
void CycleMode();
// Returns true iff the console is in a mode that is visible.
bool IsVisible() {
return (GetMode() != debug::console::kDebugConsoleModeOff);
}
void SetSize(const cssom::ViewportSize& viewport_size) {
web_module_->SetSize(viewport_size);
}
// LifecycleObserver implementation.
void Blur(SbTimeMonotonic timestamp) override {
web_module_->Blur(0);
}
void Conceal(render_tree::ResourceProvider* resource_provider,
SbTimeMonotonic timestamp) override {
web_module_->Conceal(resource_provider, 0);
}
void Freeze(SbTimeMonotonic timestamp) override {
web_module_->Freeze(0);
}
void Unfreeze(render_tree::ResourceProvider* resource_provider,
SbTimeMonotonic timestamp) override {
web_module_->Unfreeze(resource_provider, 0);
}
void Reveal(render_tree::ResourceProvider* resource_provider,
SbTimeMonotonic timestamp) override {
web_module_->Reveal(resource_provider, 0);
}
void Focus(SbTimeMonotonic timestamp) override {
web_module_->Focus(0);
}
void ReduceMemory() { web_module_->ReduceMemory(); }
bool IsReadyToFreeze() {
return web_module_->IsReadyToFreeze();
}
private:
void OnError(const GURL& url, const std::string& error) {
LOG(ERROR) << error;
}
// Returns the currently set debug console visibility mode.
debug::console::DebugConsoleMode GetMode();
// Returns true iff the debug console is in a state where it should route
// input events to its web module.
bool ShouldInjectInputEvents();
// The current console visibility mode. The mutex is required since the debug
// console's visibility mode may be accessed from both the WebModule thread
// and the DebugConsole's host thread.
base::Lock mode_mutex_;
int mode_;
// Sets up everything to do with the management of the web page that
// implements the debug console.
// This web module will produce a second render tree to combine with the main
// one.
std::unique_ptr<WebModule> web_module_;
};
} // namespace browser
} // namespace cobalt
#endif // COBALT_BROWSER_DEBUG_CONSOLE_H_