mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-13 11:10:13 +01:00
378 lines
9.0 KiB
C++
378 lines
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "plugin.h"
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#include "nsISupportsUtils.h" // some usefule macros are defined here
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#include <string.h>
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#if !TARGET_API_MAC_CARBON
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extern QDGlobals* gQDPtr;
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#endif
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//////////////////////////////////////
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//
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// general initialization and shutdown
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//
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NPError NS_PluginInitialize()
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{
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return NPERR_NO_ERROR;
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}
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void NS_PluginShutdown()
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{
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}
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/////////////////////////////////////////////////////////////
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//
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// construction and destruction of our plugin instance object
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//
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nsPluginInstanceBase * NS_NewPluginInstance(nsPluginCreateData * aCreateDataStruct)
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{
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if(!aCreateDataStruct)
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return NULL;
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nsPluginInstance * plugin = new nsPluginInstance(aCreateDataStruct->instance);
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return plugin;
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}
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void NS_DestroyPluginInstance(nsPluginInstanceBase * aPlugin)
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{
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if(aPlugin)
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delete (nsPluginInstance *)aPlugin;
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}
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////////////////////////////////////////
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//
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// nsPluginInstance class implementation
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//
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nsPluginInstance::nsPluginInstance(NPP aInstance) : nsPluginInstanceBase(),
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mInstance(aInstance),
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mInitialized(FALSE),
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mScriptablePeer(NULL)
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{
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mWindow = NULL;
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mString[0] = '\0';
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}
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nsPluginInstance::~nsPluginInstance()
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{
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// mScriptablePeer may be also held by the browser
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// so releasing it here does not guarantee that it is over
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// we should take precaution in case it will be called later
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// and zero its mPlugin member
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mScriptablePeer->SetInstance(NULL);
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NS_IF_RELEASE(mScriptablePeer);
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}
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NPBool nsPluginInstance::init(NPWindow* aWindow)
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{
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if(aWindow == NULL)
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return FALSE;
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mWindow = aWindow;
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mInitialized = TRUE;
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mSaveClip = NewRgn();
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return TRUE;
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}
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void nsPluginInstance::shut()
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{
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mWindow = NULL;
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mInitialized = FALSE;
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}
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NPBool nsPluginInstance::isInitialized()
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{
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return mInitialized;
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}
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/////////////////////////////////////////////////////////////
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//
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// DrawString
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//
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void
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nsPluginInstance::DrawString(const unsigned char* text,
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short width,
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short height,
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short centerX,
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Rect drawRect)
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{
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short length, textHeight, textWidth;
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if(text == NULL)
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return;
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length = strlen((char*)text);
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TextFont(1);
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TextFace(bold);
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TextMode(srcCopy);
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TextSize(12);
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FontInfo fontInfo;
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GetFontInfo(&fontInfo);
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textHeight = fontInfo.ascent + fontInfo.descent + fontInfo.leading;
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textWidth = TextWidth(text, 0, length);
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if (width > textWidth && height > textHeight)
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{
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MoveTo(centerX - (textWidth >> 1), height >> 1);
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DrawText(text, 0, length);
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}
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}
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/////////////////////////////////////////////////////////////
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//
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// DoDraw - paint
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//
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void
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nsPluginInstance::DoDraw(void)
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{
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Rect drawRect;
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RGBColor black = { 0x0000, 0x0000, 0x0000 };
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RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF };
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SInt32 height = mWindow->height;
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SInt32 width = mWindow->width;
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SInt32 centerX = (width) >> 1;
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SInt32 centerY = (height) >> 1;
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UInt8 *pTheText = (unsigned char*) mString;
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drawRect.top = 0;
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drawRect.left = 0;
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drawRect.bottom = drawRect.top + height;
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drawRect.right = drawRect.left + width;
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PenNormal();
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RGBForeColor(&black);
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RGBBackColor(&white);
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#if !TARGET_API_MAC_CARBON
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FillRect(&drawRect, &(gQDPtr->white));
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#else
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Pattern qdWhite;
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FillRect(&drawRect, GetQDGlobalsWhite(&qdWhite));
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#endif
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FrameRect(&drawRect);
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DrawString(pTheText, width, height, centerX, drawRect);
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}
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/////////////////////////////////////////////////////////////
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//
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// SetWindow
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//
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NPError
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nsPluginInstance::SetWindow(NPWindow* window)
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{
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mWindow = window;
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if( StartDraw(window) ) {
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DoDraw();
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EndDraw(window);
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}
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return NPERR_NO_ERROR;
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}
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/////////////////////////////////////////////////////////////
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//
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// HandleEvent
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//
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uint16
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nsPluginInstance::HandleEvent(void* event)
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{
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int16 eventHandled = FALSE;
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EventRecord* ev = (EventRecord*) event;
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if (event != NULL)
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{
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switch (ev->what)
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{
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/*
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* Draw ourselves on update events
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*/
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case updateEvt:
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if( StartDraw(mWindow) ) {
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DoDraw();
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EndDraw(mWindow);
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}
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eventHandled = true;
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break;
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default:
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break;
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}
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}
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return eventHandled;
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}
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/////////////////////////////////////////////////////////////
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//
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// StartDraw - setup port state
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//
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NPBool
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nsPluginInstance::StartDraw(NPWindow* window)
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{
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if (mWindow == NULL)
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return false;
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NP_Port* npport = (NP_Port*) mWindow->window;
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CGrafPtr ourPort = npport->port;
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if (mWindow->clipRect.left < mWindow->clipRect.right)
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{
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GetPort(&mSavePort);
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SetPort((GrafPtr) ourPort);
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Rect portRect;
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#if !TARGET_API_MAC_CARBON
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portRect = ourPort->portRect;
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#else
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GetPortBounds(ourPort, &portRect);
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#endif
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mSavePortTop = portRect.top;
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mSavePortLeft = portRect.left;
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GetClip(mSaveClip);
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mRevealedRect.top = mWindow->clipRect.top + npport->porty;
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mRevealedRect.left = mWindow->clipRect.left + npport->portx;
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mRevealedRect.bottom = mWindow->clipRect.bottom + npport->porty;
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mRevealedRect.right = mWindow->clipRect.right + npport->portx;
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SetOrigin(npport->portx, npport->porty);
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ClipRect(&mRevealedRect);
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return true;
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}
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else
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return false;
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}
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/////////////////////////////////////////////////////////////
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//
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// EndDraw - restore port state
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//
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void
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nsPluginInstance::EndDraw(NPWindow* window)
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{
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SetOrigin(mSavePortLeft, mSavePortTop);
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SetClip(mSaveClip);
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SetPort(mSavePort);
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}
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// this will force to draw a version string in the plugin window
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void nsPluginInstance::showVersion()
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{
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const char *ua = NPN_UserAgent(mInstance);
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strcpy(mString, ua);
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StartDraw(mWindow);
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DoDraw();
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EndDraw(mWindow);
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}
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// this will clean the plugin window
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void nsPluginInstance::clear()
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{
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strcpy(mString, "");
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StartDraw(mWindow);
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DoDraw();
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EndDraw(mWindow);
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}
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// ==============================
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// ! Scriptability related code !
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// ==============================
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//
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// here the plugin is asked by Mozilla to tell if it is scriptable
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// we should return a valid interface id and a pointer to
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// nsScriptablePeer interface which we should have implemented
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// and which should be defined in the corressponding *.xpt file
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// in the bin/components folder
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NPError nsPluginInstance::GetValue(NPPVariable aVariable, void *aValue)
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{
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NPError rv = NPERR_NO_ERROR;
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switch (aVariable) {
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case NPPVpluginScriptableInstance: {
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// addref happens in getter, so we don't addref here
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nsIScriptablePluginSample * scriptablePeer = getScriptablePeer();
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if (scriptablePeer) {
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*(nsISupports **)aValue = scriptablePeer;
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} else
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rv = NPERR_OUT_OF_MEMORY_ERROR;
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}
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break;
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case NPPVpluginScriptableIID: {
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static nsIID scriptableIID = NS_ISCRIPTABLEPLUGINSAMPLE_IID;
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nsIID* ptr = (nsIID *)NPN_MemAlloc(sizeof(nsIID));
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if (ptr) {
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*ptr = scriptableIID;
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*(nsIID **)aValue = ptr;
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} else
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rv = NPERR_OUT_OF_MEMORY_ERROR;
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}
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break;
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default:
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break;
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}
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return rv;
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}
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// ==============================
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// ! Scriptability related code !
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// ==============================
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//
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// this method will return the scriptable object (and create it if necessary)
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nsScriptablePeer* nsPluginInstance::getScriptablePeer()
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{
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if (!mScriptablePeer) {
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mScriptablePeer = new nsScriptablePeer(this);
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if(!mScriptablePeer)
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return NULL;
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NS_ADDREF(mScriptablePeer);
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}
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// add reference for the caller requesting the object
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NS_ADDREF(mScriptablePeer);
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return mScriptablePeer;
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}
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