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 IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
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 terms.  If you do not agree with these terms, please do not use, install, modify or 
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 or logos of Apple Computer, Inc. may be used to endorse or promote products derived from 
 the Apple Software without specific prior written permission from Apple. Except as expressly
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 herein, including but not limited to any patent rights that may be infringed by your 
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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO WARRANTIES, 
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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS 
 USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
 
 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL 
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 */

#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());
        
        for (int16 i = 0; i < argc; i++) {
            if (_stricmp(argn[i], "onstreamload") == 0 && !obj->onStreamLoad)
                obj->onStreamLoad = _strdup(argv[i]);
            else if (_stricmp(argn[i], "onStreamDestroy") == 0 && !obj->onStreamDestroy)
                obj->onStreamDestroy = _strdup(argv[i]);
            else if (_stricmp(argn[i], "onURLNotify") == 0 && !obj->onURLNotify)
                obj->onURLNotify = _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->onURLNotify)
            free(obj->onURLNotify);

        if (obj->onStreamDestroy)
            free(obj->onStreamDestroy);

        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;
}

static void executeScript(const PluginObject* obj, const char* script)
{
    NPObject *windowScriptObject;
    browser->getvalue(obj->npp, NPNVWindowNPObject, &windowScriptObject);

    NPString npScript;
    npScript.UTF8Characters = script;
    npScript.UTF8Length = strlen(script);

    NPVariant browserResult;
    browser->evaluate(obj->npp, windowScriptObject, &npScript, &browserResult);
    browser->releasevariantvalue(&browserResult);
}

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

    if (obj->returnErrorFromNewStream)
        return NPERR_GENERIC_ERROR;

    obj->stream = stream;
    *stype = NP_ASFILEONLY;

    if (obj->onStreamLoad)
        executeScript(obj, obj->onStreamLoad);
    
    return NPERR_NO_ERROR;
}

NPError NPP_DestroyStream(NPP instance, NPStream *stream, NPReason reason)
{
    PluginObject* obj = (PluginObject*)instance->pdata;

    if (obj->onStreamDestroy)
        executeScript(obj, obj->onStreamDestroy);

    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;

    if (obj->onURLNotify)
        executeScript(obj, obj->onURLNotify);
        
    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;
}
