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pjs/modules/plugin/samples/simple/npsimple.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*******************************************************************************
* npsimple.cpp
******************************************************************************
* Simple Sample Plugin
* Copyright (c) 1996 Netscape Communications. All rights reserved.
******************************************************************************
* OVERVIEW
* --------
* Section 1 - Includes
* Section 2 - Instance Structs
* Section 3 - API Plugin Implementations
* Section 4 - Utility Method Implementations
*******************************************************************************/
/*******************************************************************************
* SECTION 1 - Includes
******************************************************************************/
#include <stdio.h>
#include <string.h>
#include "nsplugin.h"
#include "nsIServiceManager.h"
#include "nsISupports.h"
#include "nsIFactory.h"
#include "nsIGenericFactory.h"
#include "nsMemory.h"
#include "nsString.h"
#include "simpleCID.h"
#include "nsISimplePluginInstance.h"
#include "nsIScriptablePlugin.h"
/*------------------------------------------------------------------------------
* Windows Includes
*----------------------------------------------------------------------------*/
#ifdef _WINDOWS /* Windows Includes */
#include <windows.h>
#endif /* _WINDOWS */
/*------------------------------------------------------------------------------
* UNIX includes
*----------------------------------------------------------------------------*/
#ifdef XP_UNIX
#include <gdk/gdk.h>
#include <gdk/gdkprivate.h>
#include <gtk/gtk.h>
#include <gdksuperwin.h>
#include <gtkmozbox.h>
#endif /* XP_UNIX */
#ifdef XP_UNIX
gboolean draw (GtkWidget *widget, GdkEventExpose *event, gpointer data);
#endif
/*******************************************************************************
* SECTION 2 - Instance Structs
*******************************************************************************
* Instance state information about the plugin.
*
* PLUGIN DEVELOPERS:
* Use this struct to hold per-instance information that you'll
* need in the various functions in this file.
******************************************************************************
* First comes the PlatformInstance struct, which contains platform specific
* information for each instance.
*****************************************************************************/
/*------------------------------------------------------------------------------
* Windows PlatformInstance
*----------------------------------------------------------------------------*/
#if defined(XP_WIN) // XXXX OS2TODO
typedef struct _PlatformInstance
{
HWND fhWnd;
WNDPROC fDefaultWindowProc;
} PlatformInstance;
/*------------------------------------------------------------------------------
* UNIX PlatformInstance
*----------------------------------------------------------------------------*/
#elif defined(XP_UNIX)
typedef struct _PlatformInstance
{
Window window;
GtkWidget *moz_box;
GdkSuperWin *superwin;
GtkWidget *label;
Display * display;
uint32 x, y;
uint32 width, height;
} PlatformInstance;
/*------------------------------------------------------------------------------
* Macintosh PlatformInstance
*----------------------------------------------------------------------------*/
#elif defined(XP_MAC)
typedef struct _PlatformInstance
{
int placeholder;
} PlatformInstance;
/*------------------------------------------------------------------------------
* Stub PlatformInstance
*----------------------------------------------------------------------------*/
#else
typedef struct _PlatformInstance
{
int placeholder;
} PlatformInstance;
#endif /* end Section 2 */
// Define constants for easy use
static NS_DEFINE_CID(kSimplePluginCID, NS_SIMPLEPLUGIN_CID);
static NS_DEFINE_CID(kPluginManagerCID, NS_PLUGINMANAGER_CID);
#define PLUGIN_MIME_TYPE "application/x-simple"
static const char kPluginName[] = "Simple Sample Plug-in";
static const char kPluginDescription[] = "Demonstrates a simple plug-in.";
static const char* kMimeTypes[] = {
PLUGIN_MIME_TYPE
};
static const char* kMimeDescriptions[] = {
"Simple Sample Plug-in"
};
static const char* kFileExtensions[] = {
"smp"
};
static const PRInt32 kNumMimeTypes = sizeof(kMimeTypes) / sizeof(*kMimeTypes);
////////////////////////////////////////////////////////////////////////////////
// Simple Plugin Classes
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// SimplePluginInstance represents an instance of the simple plugin class.
class SimplePluginInstance :
public nsIPluginInstance,
public nsIScriptablePlugin,
public nsISimplePluginInstance {
public:
////////////////////////////////////////////////////////////////////////////
// for implementing a generic module
static NS_METHOD
Create(nsISupports* aOuter, REFNSIID aIID, void** aResult);
static NS_METHOD
RegisterSelf(nsIComponentManager* aCompMgr,
nsIFile* aPath,
const char* aRegistryLocation,
const char* aComponentType,
const nsModuleComponentInfo *info);
static NS_METHOD
UnregisterSelf(nsIComponentManager* aCompMgr,
nsIFile* aPath,
const char* aRegistryLocation,
const nsModuleComponentInfo *info);
NS_DECL_ISUPPORTS
NS_DECL_NSISCRIPTABLEPLUGIN
NS_DECL_NSISIMPLEPLUGININSTANCE
////////////////////////////////////////////////////////////////////////////
// from nsIEventHandler:
// (Corresponds to NPP_HandleEvent.)
// Note that for Unix and Mac the nsPluginEvent structure is different
// from the old NPEvent structure -- it's no longer the native event
// record, but is instead a struct. This was done for future extensibility,
// and so that the Mac could receive the window argument too. For Windows
// and OS2, it's always been a struct, so there's no change for them.
NS_IMETHOD
HandleEvent(nsPluginEvent* event, PRBool* handled);
////////////////////////////////////////////////////////////////////////////
// from nsIPluginInstance:
NS_IMETHOD
Initialize(nsIPluginInstancePeer* peer);
// Required backpointer to the peer.
NS_IMETHOD
GetPeer(nsIPluginInstancePeer* *result);
// See comment for nsIPlugin::CreateInstance, above.
NS_IMETHOD
Start(void);
// The old NPP_Destroy call has been factored into two plugin instance
// methods:
//
// Stop -- called when the plugin instance is to be stopped (e.g. by
// displaying another plugin manager window, causing the page containing
// the plugin to become removed from the display).
//
// Destroy -- called once, before the plugin instance peer is to be
// destroyed. This method is used to destroy the plugin instance.
NS_IMETHOD
Stop(void);
NS_IMETHOD
Destroy(void);
// (Corresponds to NPP_SetWindow.)
NS_IMETHOD
SetWindow(nsPluginWindow* window);
NS_IMETHOD
NewStream(nsIPluginStreamListener** listener);
// (Corresponds to NPP_Print.)
NS_IMETHOD
Print(nsPluginPrint* platformPrint);
NS_IMETHOD
GetValue(nsPluginInstanceVariable variable, void *value);
////////////////////////////////////////////////////////////////////////////
// SimplePluginInstance specific methods:
SimplePluginInstance(void);
virtual ~SimplePluginInstance(void);
void PlatformNew(void);
nsresult PlatformDestroy(void);
nsresult PlatformSetWindow(nsPluginWindow* window);
PRInt16 PlatformHandleEvent(nsPluginEvent* event);
void SetMode(nsPluginMode mode) { fMode = mode; }
#ifdef XP_UNIX
NS_IMETHOD Repaint(void);
#endif
#ifdef XP_WIN
static LRESULT CALLBACK
PluginWindowProc( HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
#endif
char* fText;
protected:
nsIPluginInstancePeer* fPeer;
nsPluginWindow* fWindow;
nsPluginMode fMode;
PlatformInstance fPlatform;
};
////////////////////////////////////////////////////////////////////////////////
// SimplePluginStream represents the stream used by SimplePluginInstances
// to receive data from the browser.
class SimplePluginStreamListener : public nsIPluginStreamListener {
public:
NS_DECL_ISUPPORTS
////////////////////////////////////////////////////////////////////////////
// from nsIPluginStreamListener:
/**
* Notify the observer that the URL has started to load. This method is
* called only once, at the beginning of a URL load.<BR><BR>
*
* @return The return value is currently ignored. In the future it may be
* used to cancel the URL load..
*/
NS_IMETHOD
OnStartBinding(nsIPluginStreamInfo* pluginInfo);
/**
* Notify the client that data is available in the input stream. This
* method is called whenver data is written into the input stream by the
* networking library...<BR><BR>
*
* @param aIStream The input stream containing the data. This stream can
* be either a blocking or non-blocking stream.
* @param length The amount of data that was just pushed into the stream.
* @return The return value is currently ignored.
*/
NS_IMETHOD
OnDataAvailable(nsIPluginStreamInfo* pluginInfo,
nsIInputStream* input,
PRUint32 length);
NS_IMETHOD
OnFileAvailable(nsIPluginStreamInfo* pluginInfo, const char* fileName);
/**
* Notify the observer that the URL has finished loading. This method is
* called once when the networking library has finished processing the
* URL transaction initiatied via the nsINetService::Open(...) call.<BR><BR>
*
* This method is called regardless of whether the URL loaded successfully.<BR><BR>
*
* @param status Status code for the URL load.
* @param msg A text string describing the error.
* @return The return value is currently ignored.
*/
NS_IMETHOD
OnStopBinding(nsIPluginStreamInfo* pluginInfo, nsresult status);
NS_IMETHOD
OnNotify(const char* url, nsresult status);
NS_IMETHOD
GetStreamType(nsPluginStreamType *result);
////////////////////////////////////////////////////////////////////////////
// SimplePluginStreamListener specific methods:
SimplePluginStreamListener(SimplePluginInstance* inst, const char* url);
virtual ~SimplePluginStreamListener(void);
protected:
const char* fMessageName;
};
/*******************************************************************************
* SECTION 3 - API Plugin Implementations
******************************************************************************/
// XXXwaterson document!
static const nsModuleComponentInfo gComponentInfo[] = {
{ "Simple Plugin",
NS_SIMPLEPLUGIN_CID,
NS_INLINE_PLUGIN_CONTRACTID_PREFIX PLUGIN_MIME_TYPE,
SimplePluginInstance::Create,
SimplePluginInstance::RegisterSelf,
SimplePluginInstance::UnregisterSelf },
};
NS_IMPL_NSGETMODULE(SimplePlugin, gComponentInfo)
////////////////////////////////////////////////////////////////////////////////
// nsIScriptablePlugin methods
////////////////////////////////////////////////////////////////////////////////
NS_METHOD
SimplePluginInstance::GetScriptablePeer(void **aScriptablePeer)
{
// We implement the interface we want to be scriptable by
// (nsISimplePluginInstance) so we just return this.
// NOTE if this function returns something other than
// nsIPluginInstance, then that object will also need to implement
// nsISecurityCheckedComponent to be scriptable. The security
// system knows to special-case nsIPluginInstance when checking
// security, but in general, XPCOM components must implement
// nsISecurityCheckedComponent to be scriptable from content
// javascript.
*aScriptablePeer = NS_STATIC_CAST(nsISimplePluginInstance *, this);
NS_ADDREF(NS_STATIC_CAST(nsISimplePluginInstance *, *aScriptablePeer));
return NS_OK;
}
NS_METHOD
SimplePluginInstance::GetScriptableInterface(nsIID **aScriptableInterface)
{
*aScriptableInterface = (nsIID *)nsMemory::Alloc(sizeof(nsIID));
NS_ENSURE_TRUE(*aScriptableInterface, NS_ERROR_OUT_OF_MEMORY);
**aScriptableInterface = NS_GET_IID(nsISimplePluginInstance);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// SimplePluginInstance Methods
////////////////////////////////////////////////////////////////////////////////
NS_METHOD
SimplePluginInstance::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
{
NS_PRECONDITION(aOuter == nsnull, "no aggregation");
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
SimplePluginInstance* plugin = new SimplePluginInstance();
if (! plugin)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv;
NS_ADDREF(plugin);
rv = plugin->QueryInterface(aIID, aResult);
NS_RELEASE(plugin);
return rv;
}
NS_METHOD
SimplePluginInstance::RegisterSelf(nsIComponentManager* aCompMgr,
nsIFile* aPath,
const char* aRegistryLocation,
const char* aComponentType,
const nsModuleComponentInfo *info)
{
nsresult rv;
nsIServiceManager *svcMgr;
rv = aCompMgr->QueryInterface(NS_GET_IID(nsIServiceManager),
NS_REINTERPRET_CAST(void**, &svcMgr));
if (NS_FAILED(rv))
return rv;
nsIPluginManager* pm;
rv = svcMgr->GetService(kPluginManagerCID,
NS_GET_IID(nsIPluginManager),
NS_REINTERPRET_CAST(void**, &pm));
NS_RELEASE(svcMgr);
if (NS_SUCCEEDED(rv)) {
rv = pm->RegisterPlugin(kSimplePluginCID,
kPluginName,
kPluginDescription,
kMimeTypes,
kMimeDescriptions,
kFileExtensions,
kNumMimeTypes);
NS_RELEASE(pm);
}
return rv;
}
NS_METHOD
SimplePluginInstance::UnregisterSelf(nsIComponentManager* aCompMgr,
nsIFile* aPath,
const char* aRegistryLocation,
const nsModuleComponentInfo *info)
{
nsresult rv;
nsIServiceManager *svcMgr;
rv = aCompMgr->QueryInterface(NS_GET_IID(nsIServiceManager),
NS_REINTERPRET_CAST(void**, &svcMgr));
if (NS_FAILED(rv))
return rv;
nsIPluginManager* pm;
rv = svcMgr->GetService(kPluginManagerCID,
NS_GET_IID(nsIPluginManager),
NS_REINTERPRET_CAST(void**, &pm));
NS_RELEASE(svcMgr);
if (NS_SUCCEEDED(rv)) {
rv = pm->UnregisterPlugin(kSimplePluginCID);
NS_RELEASE(pm);
}
return rv;
}
SimplePluginInstance::SimplePluginInstance(void)
: fText(NULL), fPeer(NULL), fWindow(NULL), fMode(nsPluginMode_Embedded)
{
static const char text[] = "Hello World!";
fText = (char*) nsMemory::Clone(text, sizeof(text));
#ifdef XP_UNIX
fPlatform.moz_box = nsnull;
fPlatform.superwin = nsnull;
fPlatform.label = nsnull;
#endif
}
SimplePluginInstance::~SimplePluginInstance(void)
{
if(fText)
nsMemory::Free(fText);
PlatformDestroy(); // Perform platform specific cleanup
}
// These macros produce simple version of QueryInterface and AddRef.
// See the nsISupports.h header file for details.
NS_IMPL_ISUPPORTS3(SimplePluginInstance, nsIPluginInstance, nsISimplePluginInstance, nsIScriptablePlugin)
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* NewInstance:
* Creates a new instance of a plug-in and returns an error value.
*
* NewInstance creates a new instance of your plug-in with MIME type specified
* by pluginType. The parameter mode is NP_EMBED if the instance was created
* by an EMBED tag, or NP_FULL if the instance was created by a separate file.
* You can allocate any instance-specific private data in instance->pdata at this
* time. The NPP pointer is valid until the instance is destroyed.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
NS_METHOD
SimplePluginInstance::Initialize(nsIPluginInstancePeer* peer)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::Initialize\n");
#endif
NS_ASSERTION(peer != NULL, "null peer");
fPeer = peer;
nsIPluginTagInfo* taginfo;
const char* const* names = nsnull;
const char* const* values = nsnull;
PRUint16 count = 0;
nsresult result;
peer->AddRef();
result = peer->GetMode(&fMode);
if (NS_FAILED(result)) return result;
result = peer->QueryInterface(NS_GET_IID(nsIPluginTagInfo), (void **)&taginfo);
if (NS_SUCCEEDED(result))
{
taginfo->GetAttributes(count, names, values);
NS_IF_RELEASE(taginfo);
}
#ifdef NS_DEBUG
printf("Attribute count = %d\n", count);
for (int i = 0; i < count; i++)
{
printf("plugin param=%s, value=%s\n", names[i], values[i]);
}
#endif
PlatformNew(); /* Call Platform-specific initializations */
return NS_OK;
}
NS_METHOD
SimplePluginInstance::GetPeer(nsIPluginInstancePeer* *result)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::GetPeer\n");
#endif
fPeer->AddRef();
*result = fPeer;
return NS_OK;
}
NS_METHOD
SimplePluginInstance::Start(void)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::Start\n");
#endif
return NS_OK;
}
NS_METHOD
SimplePluginInstance::Stop(void)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::Stop\n");
#endif
return NS_OK;
}
NS_METHOD
SimplePluginInstance::Destroy(void)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::Destroy\n");
#endif
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* NPP_SetWindow:
* Sets the window in which a plug-in draws, and returns an error value.
*
* NPP_SetWindow informs the plug-in instance specified by instance of the
* the window denoted by window in which the instance draws. This nsPluginWindow
* pointer is valid for the life of the instance, or until NPP_SetWindow is called
* again with a different value. Subsequent calls to NPP_SetWindow for a given
* instance typically indicate that the window has been resized. If either window
* or window->window are NULL, the plug-in must not perform any additional
* graphics operations on the window and should free any resources associated
* with the window.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
NS_METHOD
SimplePluginInstance::SetWindow(nsPluginWindow* window)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::SetWindow\n");
#endif
nsresult result;
/*
* PLUGIN DEVELOPERS:
* Before setting window to point to the
* new window, you may wish to compare the new window
* info to the previous window (if any) to note window
* size changes, etc.
*/
result = PlatformSetWindow(window);
fWindow = window;
return result;
}
NS_METHOD
SimplePluginInstance::NewStream(nsIPluginStreamListener** listener)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::NewStream\n");
#endif
if(listener != NULL)
{
SimplePluginStreamListener* sl =
new SimplePluginStreamListener(this, "http://www.mozilla.org");
if(!sl)
return NS_ERROR_UNEXPECTED;
sl->AddRef();
*listener = sl;
}
return NS_OK;
}
/* attribute string text; */
NS_IMETHODIMP SimplePluginInstance::GetText(char * *aText)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::GetText\n");
#endif
if(!fText)
{
*aText = NULL;
return NS_OK;
}
char* ptr = *aText = (char*) nsMemory::Clone(fText, strlen(fText)+1);
return ptr ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP SimplePluginInstance::SetText(const char * aText)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::SetText\n");
#endif
if(fText)
{
nsMemory::Free(fText);
fText = NULL;
}
if(aText)
{
fText = (char*) nsMemory::Clone(aText, strlen(aText)+1);
if(!fText)
return NS_ERROR_OUT_OF_MEMORY;
#ifdef XP_WIN
if(fPlatform.fhWnd) {
InvalidateRect( fPlatform.fhWnd, NULL, TRUE );
UpdateWindow( fPlatform.fhWnd );
}
#endif
#ifdef XP_UNIX
// force a redraw
Repaint();
#endif
}
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* NPP_Print:
+++++++++++++++++++++++++++++++++++++++++++++++++*/
NS_METHOD
SimplePluginInstance::Print(nsPluginPrint* printInfo)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::Print\n");
#endif
if (printInfo == NULL)
return NS_ERROR_FAILURE;
if (printInfo->mode == nsPluginMode_Full) {
/*
* PLUGIN DEVELOPERS:
* If your plugin would like to take over
* printing completely when it is in full-screen mode,
* set printInfo->pluginPrinted to TRUE and print your
* plugin as you see fit. If your plugin wants Netscape
* to handle printing in this case, set
* printInfo->pluginPrinted to FALSE (the default) and
* do nothing. If you do want to handle printing
* yourself, printOne is true if the print button
* (as opposed to the print menu) was clicked.
* On the Macintosh, platformPrint is a THPrint; on
* Windows, platformPrint is a structure
* (defined in npapi.h) containing the printer name, port,
* etc.
*/
/* Do the default*/
printInfo->print.fullPrint.pluginPrinted = PR_FALSE;
}
else { /* If not fullscreen, we must be embedded */
/*
* PLUGIN DEVELOPERS:
* If your plugin is embedded, or is full-screen
* but you returned false in pluginPrinted above, NPP_Print
* will be called with mode == nsPluginMode_Embedded. The nsPluginWindow
* in the printInfo gives the location and dimensions of
* the embedded plugin on the printed page. On the
* Macintosh, platformPrint is the printer port; on
* Windows, platformPrint is the handle to the printing
* device context.
*/
}
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* NPP_HandleEvent:
* Mac-only, but stub must be present for Windows
* Delivers a platform-specific event to the instance.
*
* On the Macintosh, event is a pointer to a standard Macintosh EventRecord.
* All standard event types are passed to the instance as appropriate. In general,
* return TRUE if you handle the event and FALSE if you ignore the event.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
NS_METHOD
SimplePluginInstance::HandleEvent(nsPluginEvent* event, PRBool* handled)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::HandleEvent\n");
#endif
*handled = (PRBool)PlatformHandleEvent(event);
return NS_OK;
}
NS_METHOD
SimplePluginInstance::GetValue(nsPluginInstanceVariable variable, void *value)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::GetValue\n");
#endif
return NS_ERROR_FAILURE;
}
////////////////////////////////////////////////////////////////////////////////
// SimplePluginStreamListener Methods
////////////////////////////////////////////////////////////////////////////////
SimplePluginStreamListener::SimplePluginStreamListener(SimplePluginInstance* inst,
const char* msgName)
: fMessageName(msgName)
{
char msg[256];
sprintf(msg, "### Creating SimplePluginStreamListener for %s\n", fMessageName);
}
SimplePluginStreamListener::~SimplePluginStreamListener(void)
{
char msg[256];
sprintf(msg, "### Destroying SimplePluginStreamListener for %s\n", fMessageName);
}
// This macro produces a simple version of QueryInterface, AddRef and Release.
// See the nsISupports.h header file for details.
NS_IMPL_ISUPPORTS1(SimplePluginStreamListener, nsIPluginStreamListener)
NS_METHOD
SimplePluginStreamListener::OnStartBinding(nsIPluginStreamInfo* pluginInfo)
{
#ifdef NS_DEBUG
printf("SimplePluginStreamListener::OnStartBinding\n");
#endif
char msg[256];
sprintf(msg, "### Opening plugin stream for %s\n", fMessageName);
return NS_OK;
}
NS_METHOD
SimplePluginStreamListener::OnDataAvailable(nsIPluginStreamInfo* pluginInfo,
nsIInputStream* input,
PRUint32 length)
{
#ifdef NS_DEBUG
printf("SimplePluginStreamListener::OnDataAvailable\n");
#endif
char* buffer = new char[length];
if (buffer) {
PRUint32 amountRead = 0;
nsresult rslt = input->Read(buffer, length, &amountRead);
if (rslt == NS_OK) {
char msg[256];
sprintf(msg, "### Received %d bytes for %s\n", length, fMessageName);
}
delete buffer;
}
return NS_OK;
}
NS_METHOD
SimplePluginStreamListener::OnFileAvailable(nsIPluginStreamInfo* pluginInfo,
const char* fileName)
{
#ifdef NS_DEBUG
printf("SimplePluginStreamListener::OnFileAvailable\n");
#endif
char msg[256];
sprintf(msg, "### File available for %s: %s\n", fMessageName, fileName);
return NS_OK;
}
NS_METHOD
SimplePluginStreamListener::OnStopBinding(nsIPluginStreamInfo* pluginInfo, nsresult status )
{
#ifdef NS_DEBUG
printf("SimplePluginStreamListener::OnStopBinding\n");
#endif
char msg[256];
sprintf(msg, "### Closing plugin stream for %s\n", fMessageName);
return NS_OK;
}
NS_METHOD
SimplePluginStreamListener::OnNotify(const char* url, nsresult status)
{
#ifdef NS_DEBUG
printf("SimplePluginStreamListener::OnNotify\n");
#endif
return NS_OK;
}
NS_METHOD
SimplePluginStreamListener::GetStreamType(nsPluginStreamType *result)
{
#ifdef NS_DEBUG
printf("SimplePluginStreamListener::GetStreamType\n");
#endif
*result = nsPluginStreamType_Normal;
return NS_OK;
}
/*******************************************************************************
* SECTION 4 - Utility Method Implementations
*******************************************************************************/
/*------------------------------------------------------------------------------
* Platform-Specific Implemenations
*------------------------------------------------------------------------------
* UNIX Implementations
*----------------------------------------------------------------------------*/
#if defined(XP_UNIX)
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformNew
*
* Initialize any Platform-Specific instance data.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
void
SimplePluginInstance::PlatformNew(void)
{
fPlatform.window = 0;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformDestroy
*
* Destroy any Platform-Specific instance data.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
nsresult
SimplePluginInstance::PlatformDestroy(void)
{
gtk_widget_destroy(fPlatform.moz_box);
fPlatform.moz_box = 0;
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformSetWindow
*
* Perform platform-specific window operations
+++++++++++++++++++++++++++++++++++++++++++++++++*/
nsresult
SimplePluginInstance::PlatformSetWindow(nsPluginWindow* window)
{
#ifdef NS_DEBUG
printf("SimplePluginInstance::PlatformSetWindow\n");
#endif
if (window == NULL || window->window == NULL)
return NS_ERROR_NULL_POINTER;
GdkWindow *win = gdk_window_lookup((XID)window->window);
if ( fPlatform.superwin && fPlatform.superwin->bin_window == win )
return NS_OK;
// should we destroy fPlatform.superwin ??
fPlatform.superwin = gdk_superwin_new(win, 0, 0, window->width, window->height);
// a little cleanup
if (fPlatform.label)
gtk_widget_destroy(fPlatform.label);
if (fPlatform.moz_box)
gtk_widget_destroy(fPlatform.moz_box);
// create a containing mozbox and a label to put in it
fPlatform.moz_box = gtk_mozbox_new(fPlatform.superwin->bin_window);
fPlatform.label = gtk_label_new(fText);
gtk_container_add(GTK_CONTAINER(fPlatform.moz_box), fPlatform.label);
// grow the label to fit the entire mozbox
gtk_widget_set_usize(fPlatform.label, window->width, window->height);
// connect to expose events
gtk_signal_connect (GTK_OBJECT(fPlatform.label), "expose_event",
GTK_SIGNAL_FUNC(draw), this);
gtk_widget_show(fPlatform.label);
gtk_widget_show(fPlatform.moz_box);
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformHandleEvent
*
* Handle platform-specific events.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
int16
SimplePluginInstance::PlatformHandleEvent(nsPluginEvent* event)
{
/* UNIX Plugins do not use HandleEvent */
return 0;
}
NS_IMETHODIMP
SimplePluginInstance::Repaint(void)
{
#ifdef DEBUG
printf("SimplePluginInstance::Repaint()\n");
#endif
if ( !fPlatform.moz_box || !fPlatform.label )
return NS_ERROR_FAILURE;
// Set the label text
gtk_label_set_text(GTK_LABEL(fPlatform.label), fText);
// show the new label
gtk_widget_show(fPlatform.label);
gtk_widget_show(fPlatform.moz_box);
return NS_OK;
}
gboolean draw (GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
SimplePluginInstance * pthis = (SimplePluginInstance *)data;
pthis->Repaint();
return TRUE;
}
/*------------------------------------------------------------------------------
* Windows Implementations
*----------------------------------------------------------------------------*/
#elif defined(XP_WIN)
const char* gInstanceLookupString = "instance->pdata";
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformNew
*
* Initialize any Platform-Specific instance data.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
void
SimplePluginInstance::PlatformNew(void)
{
fPlatform.fhWnd = NULL;
fPlatform.fDefaultWindowProc = NULL;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformDestroy
*
* Destroy any Platform-Specific instance data.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
nsresult
SimplePluginInstance::PlatformDestroy(void)
{
if( fWindow != NULL ) { /* If we have a window, clean
* it up. */
SetWindowLong( fPlatform.fhWnd, GWL_WNDPROC, (LONG)fPlatform.fDefaultWindowProc);
fPlatform.fDefaultWindowProc = NULL;
fPlatform.fhWnd = NULL;
}
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformSetWindow
*
* Perform platform-specific window operations
+++++++++++++++++++++++++++++++++++++++++++++++++*/
nsresult
SimplePluginInstance::PlatformSetWindow(nsPluginWindow* window)
{
if( fWindow != NULL ) /* If we already have a window, clean
* it up before trying to subclass
* the new window. */
{
if( (window == NULL) || ( window->window == NULL ) ) {
/* There is now no window to use. get rid of the old
* one and exit. */
SetWindowLong( fPlatform.fhWnd, GWL_WNDPROC, (LONG)fPlatform.fDefaultWindowProc);
fPlatform.fDefaultWindowProc = NULL;
fPlatform.fhWnd = NULL;
return NS_OK;
}
else if ( fPlatform.fhWnd == (HWND) window->window ) {
/* The new window is the same as the old one. Exit now. */
return NS_OK;
}
else {
/* Clean up the old window, so that we can subclass the new
* one later. */
SetWindowLong( fPlatform.fhWnd, GWL_WNDPROC, (LONG)fPlatform.fDefaultWindowProc);
fPlatform.fDefaultWindowProc = NULL;
fPlatform.fhWnd = NULL;
}
}
else if( (window == NULL) || ( window->window == NULL ) ) {
/* We can just get out of here if there is no current
* window and there is no new window to use. */
return NS_OK;
}
/* At this point, we will subclass
* window->window so that we can begin drawing and
* receiving window messages. */
fPlatform.fDefaultWindowProc =
(WNDPROC)SetWindowLong( (HWND)window->window,
GWL_WNDPROC, (LONG)SimplePluginInstance::PluginWindowProc);
fPlatform.fhWnd = (HWND) window->window;
SetProp(fPlatform.fhWnd, gInstanceLookupString, (HANDLE)this);
InvalidateRect( fPlatform.fhWnd, NULL, TRUE );
UpdateWindow( fPlatform.fhWnd );
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformHandleEvent
*
* Handle platform-specific events.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
PRInt16
SimplePluginInstance::PlatformHandleEvent(nsPluginEvent* event)
{
/* Windows Plugins use the Windows event call-back mechanism
for events. (See PluginWindowProc) */
return 0;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PluginWindowProc
*
* Handle the Windows window-event loop.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
LRESULT CALLBACK
SimplePluginInstance::PluginWindowProc( HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
SimplePluginInstance* inst = (SimplePluginInstance*) GetProp(hWnd, gInstanceLookupString);
switch( Msg ) {
case WM_PAINT: {
PAINTSTRUCT paintStruct;
HDC hdc;
hdc = BeginPaint( hWnd, &paintStruct );
if(paintStruct.fErase)
FillRect(hdc, &paintStruct.rcPaint,
(HBRUSH) GetStockObject(WHITE_BRUSH));
if(inst->fText) {
RECT rcWnd;
GetWindowRect(hWnd, &rcWnd);
SetTextAlign(hdc, TA_CENTER);
TextOut(hdc, (rcWnd.right-rcWnd.left)/2, (rcWnd.bottom-rcWnd.top)/2, inst->fText, strlen(inst->fText));
}
EndPaint( hWnd, &paintStruct );
break;
}
default: {
CallWindowProc(inst->fPlatform.fDefaultWindowProc, hWnd, Msg, wParam, lParam);
}
}
return 0;
}
/*------------------------------------------------------------------------------
* Macintosh Implementations
*----------------------------------------------------------------------------*/
#elif defined(XP_MAC)
PRBool StartDraw(nsPluginWindow* window);
void EndDraw(nsPluginWindow* window);
void DoDraw(SimplePluginInstance* This);
CGrafPort gSavePort;
CGrafPtr gOldPort;
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformNew
*
* Initialize any Platform-Specific instance data.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
void
SimplePluginInstance::PlatformNew(void)
{
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformDestroy
*
* Destroy any Platform-Specific instance data.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
nsresult
SimplePluginInstance::PlatformDestroy(void)
{
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformSetWindow
*
* Perform platform-specific window operations
+++++++++++++++++++++++++++++++++++++++++++++++++*/
nsresult
SimplePluginInstance::PlatformSetWindow(nsPluginWindow* window)
{
fWindow = window;
if( StartDraw( window ) ) {
DoDraw(This);
EndDraw( window );
}
return NS_OK;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* PlatformHandleEvent
*
* Handle platform-specific events.
+++++++++++++++++++++++++++++++++++++++++++++++++*/
int16
SimplePluginInstance::PlatformHandleEvent(nsPluginEvent* event)
{
int16 eventHandled = FALSE;
EventRecord* ev = (EventRecord*) event;
if (This != NULL && event != NULL)
{
switch (ev->what)
{
/*
* Draw ourselves on update events
*/
case updateEvt:
if( StartDraw( fWindow ) ) {
DoDraw(This);
EndDraw( fWindow );
}
eventHandled = true;
break;
default:
break;
}
}
return eventHandled;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* StartDraw
+++++++++++++++++++++++++++++++++++++++++++++++++*/
PRBool
SimplePluginInstance::StartDraw(nsPluginWindow* window)
{
NP_Port* port;
Rect clipRect;
RGBColor col;
if (window == NULL)
return FALSE;
port = (NP_Port*) window->window;
if (window->clipRect.left < window->clipRect.right)
{
/* Preserve the old port */
GetPort((GrafPtr*)&gOldPort);
SetPort((GrafPtr)port->port);
/* Preserve the old drawing environment */
gSavePort.portRect = port->port->portRect;
gSavePort.txFont = port->port->txFont;
gSavePort.txFace = port->port->txFace;
gSavePort.txMode = port->port->txMode;
gSavePort.rgbFgColor = port->port->rgbFgColor;
gSavePort.rgbBkColor = port->port->rgbBkColor;
GetClip(gSavePort.clipRgn);
/* Setup our drawing environment */
clipRect.top = window->clipRect.top + port->porty;
clipRect.left = window->clipRect.left + port->portx;
clipRect.bottom = window->clipRect.bottom + port->porty;
clipRect.right = window->clipRect.right + port->portx;
SetOrigin(port->portx,port->porty);
ClipRect(&clipRect);
clipRect.top = clipRect.left = 0;
TextSize(12);
TextFont(geneva);
TextMode(srcCopy);
col.red = col.green = col.blue = 0;
RGBForeColor(&col);
col.red = col.green = col.blue = 65000;
RGBBackColor(&col);
return TRUE;
}
else
return FALSE;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* EndDraw
+++++++++++++++++++++++++++++++++++++++++++++++++*/
void
SimplePluginInstance::EndDraw(nsPluginWindow* window)
{
CGrafPtr myPort;
NP_Port* port = (NP_Port*) window->window;
SetOrigin(gSavePort.portRect.left, gSavePort.portRect.top);
SetClip(gSavePort.clipRgn);
GetPort((GrafPtr*)&myPort);
myPort->txFont = gSavePort.txFont;
myPort->txFace = gSavePort.txFace;
myPort->txMode = gSavePort.txMode;
RGBForeColor(&gSavePort.rgbFgColor);
RGBBackColor(&gSavePort.rgbBkColor);
SetPort((GrafPtr)gOldPort);
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++
* DoDraw
+++++++++++++++++++++++++++++++++++++++++++++++++*/
void
SimplePluginInstance::DoDraw(void)
{
Rect drawRect;
drawRect.top = 0;
drawRect.left = 0;
drawRect.bottom = drawRect.top + fWindow->height;
drawRect.right = drawRect.left + fWindow->width;
EraseRect( &drawRect );
MoveTo( 2, 12 );
DrawString("\pHello, World!");
}
/*------------------------------------------------------------------------------
* Stub Implementations
*----------------------------------------------------------------------------*/
#else
void
SimplePluginInstance::PlatformNew(void)
{
}
nsresult
SimplePluginInstance::PlatformDestroy(void)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
SimplePluginInstance::PlatformSetWindow(nsPluginWindow* window)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
int16
SimplePluginInstance::PlatformHandleEvent(nsPluginEvent* event)
{
int16 eventHandled = FALSE;
return eventHandled;
}
#endif /* end Section 5 */
/******************************************************************************/
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