main.c

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2007 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "PluginObject.h"

#include <stdio.h>

extern "C"
NPError __stdcall NP_Initialize(NPNetscapeFuncs* browserFuncs)
{
    browser = browserFuncs;
    return NPERR_NO_ERROR;
}

extern "C" 
NPError __stdcall NP_GetEntryPoints(NPPluginFuncs* pluginFuncs)
{
    pluginFuncs->version = 11;
    pluginFuncs->size = sizeof(pluginFuncs);
    pluginFuncs->newp = NPP_New;
    pluginFuncs->destroy = NPP_Destroy;
    pluginFuncs->setwindow = NPP_SetWindow;
    pluginFuncs->newstream = NPP_NewStream;
    pluginFuncs->destroystream = NPP_DestroyStream;
    pluginFuncs->asfile = NPP_StreamAsFile;
    pluginFuncs->writeready = NPP_WriteReady;
    pluginFuncs->write = (NPP_WriteProcPtr)NPP_Write;
    pluginFuncs->print = NPP_Print;
    pluginFuncs->event = NPP_HandleEvent;
    pluginFuncs->urlnotify = NPP_URLNotify;
    pluginFuncs->getvalue = NPP_GetValue;
    pluginFuncs->setvalue = NPP_SetValue;
    
    return NPERR_NO_ERROR;
}


extern "C"
NPError __stdcall NP_Shutdown()
{
    return NPERR_NO_ERROR;
}


NPError NPP_New(NPMIMEType pluginType, NPP instance, uint16 mode, int16 argc, char *argn[], char *argv[], NPSavedData *saved)
{
    if (browser->version >= 14) {
        PluginObject* obj = (PluginObject*)browser->createobject(instance, getPluginClass());
    
        obj->onStreamLoad = NULL;
        
        for (int16 i = 0; i < argc; i++) {
            if (_stricmp(argn[i], "onstreamload") == 0 && !obj->onStreamLoad)
                obj->onStreamLoad = _strdup(argv[i]);
        }
        
        instance->pdata = obj;
    }
    
    return NPERR_NO_ERROR;
}

NPError NPP_Destroy(NPP instance, NPSavedData **save)
{
    PluginObject *obj = (PluginObject*)instance->pdata;
    if (obj) {
        if (obj->onStreamLoad)
            free(obj->onStreamLoad);
        
        if (obj->logDestroy)
            printf("PLUGIN: NPP_Destroy\n");

        browser->releaseobject(&obj->header);
    }
    return NPERR_NO_ERROR;
}

NPError NPP_SetWindow(NPP instance, NPWindow *window)
{
    return NPERR_NO_ERROR;
}

NPError NPP_NewStream(NPP instance, NPMIMEType type, NPStream *stream, NPBool seekable, uint16 *stype)
{
    PluginObject* obj = (PluginObject*)instance->pdata;
    obj->stream = stream;
    *stype = NP_ASFILEONLY;

    if (obj->onStreamLoad) {
        NPObject *windowScriptObject;
        browser->getvalue(obj->npp, NPNVWindowNPObject, &windowScriptObject);
                
        NPString script;
        script.UTF8Characters = obj->onStreamLoad;
        script.UTF8Length = strlen(obj->onStreamLoad);
        
        NPVariant browserResult;
        browser->evaluate(obj->npp, windowScriptObject, &script, &browserResult);
        browser->releasevariantvalue(&browserResult);
    }
    
    return NPERR_NO_ERROR;
}

NPError NPP_DestroyStream(NPP instance, NPStream *stream, NPReason reason)
{
    return NPERR_NO_ERROR;
}

int32 NPP_WriteReady(NPP instance, NPStream *stream)
{
    return 0;
}

int32 NPP_Write(NPP instance, NPStream *stream, int32 offset, int32 len, void *buffer)
{
    return 0;
}

void NPP_StreamAsFile(NPP instance, NPStream *stream, const char *fname)
{
}

void NPP_Print(NPP instance, NPPrint *platformPrint)
{
}

int16 NPP_HandleEvent(NPP instance, void *event)
{
    PluginObject *obj = (PluginObject*)instance->pdata;
    if (!obj->eventLogging)
        return 0;
    
    // FIXME: Implement this
    return 0;
}

void NPP_URLNotify(NPP instance, const char *url, NPReason reason, void *notifyData)
{
    PluginObject *obj = (PluginObject*)instance->pdata;
        
    handleCallback(obj, url, reason, notifyData);
}

NPError NPP_GetValue(NPP instance, NPPVariable variable, void *value)
{
    if (variable == NPPVpluginScriptableNPObject) {
        void **v = (void **)value;
        PluginObject *obj = (PluginObject*)instance->pdata;
        // Return value is expected to be retained
        browser->retainobject((NPObject *)obj);
        *v = obj;
        return NPERR_NO_ERROR;
    }
    return NPERR_GENERIC_ERROR;
}

NPError NPP_SetValue(NPP instance, NPNVariable variable, void *value)
{
    return NPERR_GENERIC_ERROR;
}