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Diffstat (limited to 'plugin/SetWin.c')
| -rw-r--r-- | plugin/SetWin.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/plugin/SetWin.c b/plugin/SetWin.c new file mode 100644 index 0000000..3e60f75 --- /dev/null +++ b/plugin/SetWin.c @@ -0,0 +1,213 @@ +/* $Xorg: SetWin.c,v 1.4 2001/02/09 02:05:57 xorgcvs Exp $ */ +/* + +Copyright 1996, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- +ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT +SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABIL- +ITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization from +The Open Group. + +*/ + +/* + * RX plug-in module based on the UnixTemplate file provided by Netcape. + */ + +/* -*- Mode: C; tab-width: 4; -*- */ +/****************************************************************************** + * Copyright 1996 Netscape Communications. All rights reserved. + ******************************************************************************/ +/* + * UnixShell.c + * + * Netscape Client Plugin API + * - Function that need to be implemented by plugin developers + * + * This file defines a "Template" plugin that plugin developers can use + * as the basis for a real plugin. This shell just provides empty + * implementations of all functions that the plugin can implement + * that will be called by Netscape (the NPP_xxx methods defined in + * npapi.h). + * + * dp Suresh <dp@netscape.com> + * + */ + +#include "RxPlugin.h" +#include <X11/StringDefs.h> + +/*********************************************************************** + * Sometimes the plugin widget gets stupidly destroyed, that is whenever + * Netscape relayouts the page. This callback reparents the client + * windows to the root window so they do not get destroyed as well. + * Eventually the NPP_SetWindow function should be called and we'll + * reparent them back under the plugin. + ***********************************************************************/ +static void +DestroyCB (Widget widget, XtPointer client_data, XtPointer call_data) +{ + PluginInstance* This = (PluginInstance*) client_data; + int i; +#ifdef PLUGIN_TRACE + fprintf (stderr, "DestroyCB, This: 0x%x\n", This); +#endif + if (widget == This->plugin_widget) { + This->plugin_widget = NULL; + This->status_widget = NULL; + } + if (This->dont_reparent == RxFalse) { + for (i = 0; i < This->nclient_windows; i++) { + XUnmapWindow (RxGlobal.dpy, This->client_windows[i].win); + This->client_windows[i].flags &= ~RxpMapped; + + XReparentWindow (RxGlobal.dpy, This->client_windows[i].win, + (XtScreen (widget))->root, 0, 0); + } + This->dont_reparent = RxTrue; + } else + This->dont_reparent = RxFalse; + /* + * not worth removing event handlers on this widget since it's + * about to be destroyed anyway. + */ +} + + +/*********************************************************************** + * Sometimes the plugin widget gets stupidly resized, because of poor + * geometry when its child (that is the status widget) gets destroyed. + * So this callback resizes it back to the right size. + * Note that this could lead to an endless battle, but it appears that + * it doesn't so far... + ***********************************************************************/ +static void +ResizeCB (Widget widget, XtPointer client_data, XtPointer call_data) +{ + PluginInstance* This = (PluginInstance*) client_data; + Arg args[5]; + int n; + +#ifdef PLUGIN_TRACE + fprintf (stderr, "ResizeCB, This: 0x%x\n", This); +#endif + /* make sure plugin widget gets the same size back */ + n = 0; + XtSetArg(args[n], XtNwidth, This->width); n++; + XtSetArg(args[n], XtNheight, This->height); n++; + XtSetValues(This->plugin_widget, args, n); +} + +static Widget +FindToplevel(Widget widget) +{ + while (XtParent(widget) != NULL && !XtIsTopLevelShell(widget)) + widget = XtParent(widget); + + return widget; +} + +/*********************************************************************** + * This function gets called first when the plugin widget is created and + * then whenever the plugin is changed. + ***********************************************************************/ +NPError +NPP_SetWindow(NPP instance, NPWindow* window) +{ + PluginInstance* This; + Widget netscape_widget; + + if (instance == NULL) + return NPERR_INVALID_INSTANCE_ERROR; + + if (window == NULL) + return NPERR_NO_ERROR; + + /* + * 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. + */ + This = (PluginInstance*) instance->pdata; +#ifdef PLUGIN_TRACE + fprintf(stderr, "SetWindow 0x%x.\n", (Window) window->window); + fprintf(stderr, "This: 0x%x\n", This); + if (This->plugin_widget) + fprintf(stderr, "This->plugin_widget: 0x%x\n", This->plugin_widget); +#endif + if (RxGlobal.dpy == NULL) { + RxGlobal.dpy = ((NPSetWindowCallbackStruct *)window->ws_info)->display; + RxGlobal.wm_delete_window = + XInternAtom (RxGlobal.dpy, "WM_DELETE_WINDOW", TRUE); + RxGlobal.wm_protocols = XInternAtom (RxGlobal.dpy, "WM_PROTOCOLS", TRUE); + } + netscape_widget = XtWindowToWidget(RxGlobal.dpy, (Window) window->window); + if (This->toplevel_widget == NULL) + This->toplevel_widget = FindToplevel(netscape_widget); + + if (This->plugin_widget != netscape_widget) { + + /* We have a new widget store it */ + This->plugin_widget = netscape_widget; + This->width = window->width; + This->height = window->height; + + XtAddCallback (This->plugin_widget, XtNdestroyCallback, + DestroyCB, (XtPointer) This); + XtAddCallback (This->plugin_widget, "resizeCallback", + ResizeCB, (XtPointer) This); + + if (This->app_group) + RxpSetupPluginEventHandlers (This); + + if (This->nclient_windows > 0) { + int i; + + /* We already have the client, so we need to reparent it to the + new window */ + for (i = 0; i < This->nclient_windows; i++) { + XReparentWindow(RxGlobal.dpy, This->client_windows[i].win, + XtWindow(netscape_widget), + This->client_windows[i].x, + This->client_windows[i].y); + if (This->dont_reparent == RxTrue) { + XMapWindow (RxGlobal.dpy, This->client_windows[i].win); + This->client_windows[i].flags |= RxpMapped; + } + } + } else /* no client window, display status widget */ + RxpSetStatusWidget(This, This->state); + if (This->dont_reparent != RxFalse) /* can be True or Undef */ + This->dont_reparent = RxFalse; + else + This->dont_reparent = RxTrue; + } + return NPERR_NO_ERROR; +} + +void +RxpRemoveDestroyCallback(PluginInstance *This) +{ + if (This->plugin_widget != NULL) + XtRemoveCallback(This->plugin_widget, XtNdestroyCallback, + DestroyCB, (XtPointer) This); +} |