зеркало из https://github.com/mozilla/pjs.git
164 строки
3.7 KiB
C++
164 строки
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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//////////////////////////////////////////////////
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//
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// CPlugin class implementation
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//
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#ifdef XP_WIN
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#include <windows.h>
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#include <windowsx.h>
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#endif
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#include "plugin.h"
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CPlugin::CPlugin(NPP pNPInstance) :
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m_pNPInstance(pNPInstance),
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m_pNPStream(NULL),
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m_bInitialized(FALSE),
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m_pScriptablePeer(NULL)
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{
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#ifdef XP_WIN
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m_hWnd = NULL;
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#endif
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m_String[0] = '\0';
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}
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CPlugin::~CPlugin()
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{
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NS_IF_RELEASE(m_pScriptablePeer);
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}
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#ifdef XP_WIN
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static LRESULT CALLBACK PluginWinProc(HWND, UINT, WPARAM, LPARAM);
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static WNDPROC lpOldProc = NULL;
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#endif
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BOOL CPlugin::init(NPWindow* pNPWindow)
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{
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if(pNPWindow == NULL)
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return FALSE;
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#ifdef XP_WIN
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m_hWnd = (HWND)pNPWindow->window;
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if(m_hWnd == NULL)
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return FALSE;
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// subclass window so we can intercept window messages and
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// do our drawing to it
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lpOldProc = SubclassWindow(m_hWnd, (WNDPROC)PluginWinProc);
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// associate window with our CPlugin object so we can access
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// it in the window procedure
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SetWindowLong(m_hWnd, GWL_USERDATA, (LONG)this);
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#endif
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m_bInitialized = TRUE;
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return TRUE;
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}
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void CPlugin::shut()
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{
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#ifdef XP_WIN
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// subclass it back
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SubclassWindow(m_hWnd, lpOldProc);
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m_hWnd = NULL;
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#endif
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m_bInitialized = FALSE;
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}
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BOOL CPlugin::isInitialized()
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{
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return m_bInitialized;
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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 CPlugin::showVersion()
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{
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const char *ua = NPN_UserAgent(m_pNPInstance);
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strcpy(m_String, ua);
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#ifdef XP_WIN
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InvalidateRect(m_hWnd, NULL, TRUE);
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UpdateWindow(m_hWnd);
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#endif
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}
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// this will clean the plugin window
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void CPlugin::clear()
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{
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strcpy(m_String, "");
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#ifdef XP_WIN
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InvalidateRect(m_hWnd, NULL, TRUE);
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UpdateWindow(m_hWnd);
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#endif
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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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nsI4xScriptablePlugin* CPlugin::getScriptablePeer()
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{
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if (!m_pScriptablePeer) {
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m_pScriptablePeer = new nsScriptablePeer(this);
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if(!m_pScriptablePeer)
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return NULL;
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NS_ADDREF(m_pScriptablePeer);
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}
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// add reference for the caller requesting the object
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NS_ADDREF(m_pScriptablePeer);
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return m_pScriptablePeer;
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}
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#ifdef XP_WIN
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static LRESULT CALLBACK PluginWinProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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switch (msg) {
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case WM_PAINT:
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{
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// draw a frame and display the string
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PAINTSTRUCT ps;
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HDC hdc = BeginPaint(hWnd, &ps);
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RECT rc;
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GetClientRect(hWnd, &rc);
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FrameRect(hdc, &rc, GetStockBrush(BLACK_BRUSH));
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CPlugin * p = (CPlugin *)GetWindowLong(hWnd, GWL_USERDATA);
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if(p)
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DrawText(hdc, p->m_String, strlen(p->m_String), &rc, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
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EndPaint(hWnd, &ps);
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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 DefWindowProc(hWnd, msg, wParam, lParam);
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}
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#endif
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