/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 *
 * 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.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * 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
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "InspectorFrontendClientImpl.h"

#include "V8InspectorFrontendHost.h"
#include "WebDevToolsFrontendClient.h"
#include "WebDevToolsFrontendImpl.h"
#include "bindings/v8/ScriptController.h"
#include "core/dom/Document.h"
#include "core/inspector/InspectorFrontendHost.h"
#include "core/frame/Frame.h"
#include "core/page/Page.h"
#include "public/platform/WebFloatPoint.h"
#include "public/platform/WebString.h"
#include "wtf/text/WTFString.h"

using namespace WebCore;

namespace blink {

InspectorFrontendClientImpl::InspectorFrontendClientImpl(Page* frontendPage, WebDevToolsFrontendClient* client, WebDevToolsFrontendImpl* frontend)
    : m_frontendPage(frontendPage)
    , m_client(client)
{
}

InspectorFrontendClientImpl::~InspectorFrontendClientImpl()
{
    if (m_frontendHost)
        m_frontendHost->disconnectClient();
    m_client = 0;
}

void InspectorFrontendClientImpl::windowObjectCleared()
{
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    v8::HandleScope handleScope(isolate);
    v8::Handle<v8::Context> frameContext = m_frontendPage->mainFrame() ? m_frontendPage->mainFrame()->script().currentWorldContext() : v8::Local<v8::Context>();
    v8::Context::Scope contextScope(frameContext);

    if (m_frontendHost)
        m_frontendHost->disconnectClient();
    m_frontendHost = InspectorFrontendHost::create(this, m_frontendPage);
    v8::Handle<v8::Value> frontendHostObj = toV8(m_frontendHost.get(), v8::Handle<v8::Object>(), frameContext->GetIsolate());
    v8::Handle<v8::Object> global = frameContext->Global();

    global->Set(v8::String::NewFromUtf8(isolate, "InspectorFrontendHost"), frontendHostObj);

    ScriptController* scriptController = m_frontendPage->mainFrame() ? &m_frontendPage->mainFrame()->script() : 0;
    if (scriptController) {
        String installLegacyOverrides =
            "" // Support for legacy front-ends (<M31). Do not add items here.
            "(function(host, methodNames) {"
            "    var callId = 0;"
            "    function dispatch(methodName)"
            "    {"
            "        var argsArray = Array.prototype.slice.call(arguments, 1);"
            "        var message = {\"method\": methodName, \"id\": ++callId};"
            "        if (argsArray.length)"
            "            message.params = argsArray;"
            "        this.sendMessageToEmbedder(JSON.stringify(message));"
            "    };"
            "    methodNames.forEach(function(methodName) { host[methodName] = dispatch.bind(host, methodName); });"
            "})(InspectorFrontendHost,"
            "    ['addFileSystem',"
            "     'append',"
            "     'bringToFront',"
            "     'indexPath',"
            "     'moveWindowBy',"
            "     'openInNewTab',"
            "     'removeFileSystem',"
            "     'requestFileSystems',"
            "     'requestSetDockSide',"
            "     'save',"
            "     'searchInPath',"
            "     'stopIndexing']);"
            ""
            "" // Support for legacy front-ends (<M28). Do not add items here.
            "InspectorFrontendHost.canInspectWorkers = function() { return true; };"
            "InspectorFrontendHost.canSaveAs = function() { return true; };"
            "InspectorFrontendHost.canSave = function() { return true; };"
            "InspectorFrontendHost.supportsFileSystems = function() { return true; };"
            "InspectorFrontendHost.loaded = function() {};"
            "InspectorFrontendHost.hiddenPanels = function() { return ""; };"
            "InspectorFrontendHost.localizedStringsURL = function() { return ""; };"
            "InspectorFrontendHost.close = function(url) { };";
        scriptController->executeScriptInMainWorld(installLegacyOverrides, ScriptController::ExecuteScriptWhenScriptsDisabled);
    }
}

void InspectorFrontendClientImpl::inspectedURLChanged(const String& url)
{
    m_frontendPage->mainFrame()->document()->setTitle("Developer Tools - " + url);
}

void InspectorFrontendClientImpl::sendMessageToBackend(const String& message)
{
    m_client->sendMessageToBackend(message);
}

void InspectorFrontendClientImpl::sendMessageToEmbedder(const String& message)
{
    m_client->sendMessageToEmbedder(message);
}

bool InspectorFrontendClientImpl::isUnderTest()
{
    return m_client->isUnderTest();
}

} // namespace blink