/*

 * Copyright (C) 2007 Alp Toker <alp@atoker.com>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#include "config.h"

#include "WorkQueueItem.h"

#include "DumpRenderTree.h"

#include <JavaScriptCore/JSStringRef.h>

#include <webkit/webkit.h>

#include <string.h>

// Returns a newly allocated UTF-8 character buffer which must be freed with g_free()

gchar* JSStringCopyUTF8CString(JSStringRef jsString)

{

    size_t dataSize = JSStringGetMaximumUTF8CStringSize(jsString);

    gchar* utf8 = (gchar*)g_malloc(dataSize);

    JSStringGetUTF8CString(jsString, utf8, dataSize);

    return utf8;

}

bool LoadItem::invoke() const

{

    gchar* targetString = JSStringCopyUTF8CString(m_target.get());

    WebKitWebFrame* targetFrame;

    if (!strlen(targetString))

        targetFrame = mainFrame;

    else

        targetFrame = webkit_web_frame_find_frame(mainFrame, targetString);

    g_free(targetString);

    gchar* urlString = JSStringCopyUTF8CString(m_url.get());

    WebKitNetworkRequest* request = webkit_network_request_new(urlString);

    g_free(urlString);

    webkit_web_frame_load_request(targetFrame, request);

    g_object_unref(request);

    return true;

}

bool LoadHTMLStringItem::invoke() const

{

    return false;

}

bool ReloadItem::invoke() const

{

    webkit_web_frame_reload(mainFrame);

    return true;

}

bool ScriptItem::invoke() const

{

    WebKitWebView* webView = webkit_web_frame_get_web_view(mainFrame);

    gchar* scriptString = JSStringCopyUTF8CString(m_script.get());

    webkit_web_view_execute_script(webView, scriptString);

    g_free(scriptString);

    return true;

}

bool BackForwardItem::invoke() const

{

    WebKitWebView* webView = webkit_web_frame_get_web_view(mainFrame);

    if (m_howFar == 1)

        webkit_web_view_go_forward(webView);

    else if (m_howFar == -1)

        webkit_web_view_go_back(webView);

    else {

        WebKitWebBackForwardList* webBackForwardList = webkit_web_view_get_back_forward_list(webView);

        WebKitWebHistoryItem* item = webkit_web_back_forward_list_get_nth_item(webBackForwardList, m_howFar);

        webkit_web_view_go_to_back_forward_item(webView, item);

    }

    return true;

}