/*
 * Copyright (C) 2005, 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. 
 * 3.  Neither the name of Apple Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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.
 */

#if ENABLE(NETSCAPE_PLUGIN_API)

#import "WebBaseNetscapePluginView.h"
#import <WebKitLegacy/npfunctions.h>
#import <WebKitLegacy/npapi.h>
#import <wtf/HashMap.h>
#import <wtf/HashSet.h>

@class WebNetscapePluginPackage;

class PluginTimer;
class WebNetscapePluginStream;
class WebNetscapePluginEventHandler;

typedef union PluginPort {
    NP_CGContext cgPort;
} PluginPort;

// Because the Adobe 7.x Acrobat plug-in has a hard coded check for a view named 
// "WebNetscapePluginDocumentView", this class must retain the old name in order 
// for the plug-in to function correctly. (rdar://problem/4699455)
#define WebNetscapePluginView WebNetscapePluginDocumentView

@interface WebNetscapePluginView : WebBaseNetscapePluginView<WebPluginManualLoader>
{
@package
    RefPtr<WebNetscapePluginStream> _manualStream;
    RetainPtr<CALayer> _pluginLayer;
    unsigned _dataLengthReceived;
    RetainPtr<NSError> _error;

    NPObject* _elementNPObject;

    unsigned argsCount;
    char **cAttributes;
    char **cValues;
        
    NPP plugin;
    NPWindow window;
    NPWindow lastSetWindow;
    PluginPort nPort;
    PluginPort lastSetPort;
    NPDrawingModel drawingModel;
    NPEventModel eventModel;

    std::unique_ptr<WebNetscapePluginEventHandler> _eventHandler;
    
    BOOL inSetWindow;
    BOOL shouldStopSoon;

    uint32_t currentTimerID;
    std::unique_ptr<HashMap<uint32_t, std::unique_ptr<PluginTimer>>> timers;

    unsigned pluginFunctionCallDepth;
    
    int32_t specifiedHeight;
    int32_t specifiedWidth;
            
    HashSet<RefPtr<WebNetscapePluginStream>> streams;
    RetainPtr<NSMapTable> _pendingFrameLoads;
    
    BOOL _isFlash;
    BOOL _isSilverlight;
}

+ (WebNetscapePluginView *)currentPluginView;


- (id)initWithFrame:(NSRect)r
      pluginPackage:(WebNetscapePluginPackage *)thePluginPackage
                URL:(NSURL *)URL
            baseURL:(NSURL *)baseURL
           MIMEType:(NSString *)MIME
      attributeKeys:(NSArray *)keys
    attributeValues:(NSArray *)values
       loadManually:(BOOL)loadManually
            element:(RefPtr<WebCore::HTMLPlugInElement>&&)element;


- (NPP)plugin;

- (void)disconnectStream:(WebNetscapePluginStream*)stream;

// Returns the NPObject that represents the plugin interface.
// The return value is expected to be retained.
- (NPObject *)createPluginScriptableObject;

// Returns the form value associated with the plugin instance.
- (BOOL)getFormValue:(NSString **)value;

// -willCallPlugInFunction must be called before calling any of the NPP_* functions for this view's plugin.
// This is necessary to ensure that plug-ins are not destroyed while WebKit calls into them.  Some plug-ins (Flash
// at least) are written with the assumption that nothing they do in their plug-in functions can cause NPP_Destroy()
// to be called.  Unfortunately, this is not true, especially if the plug-in uses NPN_Invoke() to execute a
// document.write(), which clears the document and destroys the plug-in.
// See <rdar://problem/4480737>.
- (void)willCallPlugInFunction;

// -didCallPlugInFunction should be called after returning from a plug-in function.  It should be called exactly
// once for every call to -willCallPlugInFunction.
// See <rdar://problem/4480737>.
- (void)didCallPlugInFunction;

- (void)handleMouseMoved:(NSEvent *)event;
- (void)handleMouseEntered:(NSEvent *)event;
- (void)handleMouseExited:(NSEvent *)event;

@end

@interface WebNetscapePluginView (WebInternal)
- (BOOL)sendEvent:(void*)event isDrawRect:(BOOL)eventIsDrawRect;
- (NPEventModel)eventModel;
- (CALayer *)pluginLayer;
- (NPError)loadRequest:(NSURLRequest *)request inTarget:(NSString *)target withNotifyData:(void *)notifyData sendNotification:(BOOL)sendNotification;
- (NPError)getURLNotify:(const char *)URL target:(const char *)target notifyData:(void *)notifyData;
- (NPError)getURL:(const char *)URL target:(const char *)target;
- (NPError)postURLNotify:(const char *)URL target:(const char *)target len:(UInt32)len buf:(const char *)buf file:(NPBool)file notifyData:(void *)notifyData;
- (NPError)postURL:(const char *)URL target:(const char *)target len:(UInt32)len buf:(const char *)buf file:(NPBool)file;
- (NPError)newStream:(NPMIMEType)type target:(const char *)target stream:(NPStream**)stream;
- (NPError)write:(NPStream*)stream len:(SInt32)len buffer:(void *)buffer;
- (NPError)destroyStream:(NPStream*)stream reason:(NPReason)reason;
- (void)status:(const char *)message;
- (const char *)userAgent;
- (void)invalidateRect:(NPRect *)invalidRect;
- (void)invalidateRegion:(NPRegion)invalidateRegion;
- (void)forceRedraw;
- (NPError)getVariable:(NPNVariable)variable value:(void *)value;
- (NPError)setVariable:(NPPVariable)variable value:(void *)value;
- (uint32_t)scheduleTimerWithInterval:(uint32_t)interval repeat:(NPBool)repeat timerFunc:(void (*)(NPP npp, uint32_t timerID))timerFunc;
- (void)unscheduleTimer:(uint32_t)timerID;
- (NPError)popUpContextMenu:(NPMenu *)menu;
- (NPError)getVariable:(NPNURLVariable)variable forURL:(const char*)url value:(char**)value length:(uint32_t*)length;
- (NPError)setVariable:(NPNURLVariable)variable forURL:(const char*)url value:(const char*)value length:(uint32_t)length;
- (NPError)getAuthenticationInfoWithProtocol:(const char*) protocol host:(const char*)host port:(int32_t)port scheme:(const char*)scheme realm:(const char*)realm
                                    username:(char**)username usernameLength:(uint32_t*)usernameLength 
                                    password:(char**)password passwordLength:(uint32_t*)passwordLength;
@end

#endif