third_party/WebKit/Source/web/WebDevToolsFrontendImpl.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "web/WebDevToolsFrontendImpl.h"

#include "bindings/core/v8/ScriptController.h"
#include "bindings/core/v8/V8BindingForCore.h"
#include "bindings/core/v8/V8DevToolsHost.h"
#include "core/exported/WebViewBase.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/WebLocalFrameBase.h"
#include "core/inspector/DevToolsHost.h"
#include "core/page/Page.h"
#include "public/platform/WebSecurityOrigin.h"
#include "public/platform/WebString.h"
#include "public/web/WebDevToolsFrontendClient.h"

namespace blink {

WebDevToolsFrontend* WebDevToolsFrontend::Create(
    WebLocalFrame* frame,
    WebDevToolsFrontendClient* client) {
  return new WebDevToolsFrontendImpl(ToWebLocalFrameBase(frame), client);
}

WebDevToolsFrontendImpl::WebDevToolsFrontendImpl(
    WebLocalFrameBase* web_frame,
    WebDevToolsFrontendClient* client)
    : web_frame_(web_frame), client_(client) {
  web_frame_->SetDevToolsFrontend(this);
  web_frame_->GetFrame()->GetPage()->SetDefaultPageScaleLimits(1.f, 1.f);
}

WebDevToolsFrontendImpl::~WebDevToolsFrontendImpl() {
  if (devtools_host_)
    devtools_host_->DisconnectClient();
}

void WebDevToolsFrontendImpl::DidClearWindowObject(WebLocalFrameBase* frame) {
  if (web_frame_ == frame) {
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    // Use higher limit for DevTools isolate so that it does not OOM when
    // profiling large heaps.
    isolate->IncreaseHeapLimitForDebugging();
    ScriptState* script_state =
        ToScriptStateForMainWorld(web_frame_->GetFrame());
    DCHECK(script_state);
    ScriptState::Scope scope(script_state);

    if (devtools_host_)
      devtools_host_->DisconnectClient();
    devtools_host_ = DevToolsHost::Create(this, web_frame_->GetFrame());
    v8::Local<v8::Object> global = script_state->GetContext()->Global();
    v8::Local<v8::Value> devtools_host_obj =
        ToV8(devtools_host_.Get(), global, script_state->GetIsolate());
    DCHECK(!devtools_host_obj.IsEmpty());
    global->Set(V8AtomicString(isolate, "DevToolsHost"), devtools_host_obj);
  }

  if (injected_script_for_origin_.IsEmpty())
    return;

  String origin = frame->GetSecurityOrigin().ToString();
  String script = injected_script_for_origin_.at(origin);
  if (script.IsEmpty())
    return;
  static int last_script_id = 0;
  StringBuilder script_with_id;
  script_with_id.Append(script);
  script_with_id.Append('(');
  script_with_id.AppendNumber(++last_script_id);
  script_with_id.Append(')');
  frame->GetFrame()->GetScriptController().ExecuteScriptInMainWorld(
      script_with_id.ToString());
}

void WebDevToolsFrontendImpl::SendMessageToEmbedder(const String& message) {
  if (client_)
    client_->SendMessageToEmbedder(message);
}

bool WebDevToolsFrontendImpl::IsUnderTest() {
  return client_ ? client_->IsUnderTest() : false;
}

void WebDevToolsFrontendImpl::ShowContextMenu(
    LocalFrame* target_frame,
    float x,
    float y,
    ContextMenuProvider* menu_provider) {
  WebLocalFrameBase::FromFrame(target_frame)
      ->ViewImpl()
      ->ShowContextMenuAtPoint(x, y, menu_provider);
}

void WebDevToolsFrontendImpl::SetInjectedScriptForOrigin(const String& origin,
                                                         const String& source) {
  injected_script_for_origin_.Set(origin, source);
}

}  // namespace blink