mirror of
https://github.com/mozilla/gecko-dev.git
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327 lines
10 KiB
C++
327 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This file is the Gtk2 implementation of plugin native window.
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*/
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#include "nsDebug.h"
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#include "nsPluginNativeWindowGtk.h"
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#include "nsNPAPIPlugin.h"
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#include "npapi.h"
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#include <gtk/gtk.h>
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#include <gdk/gdkx.h>
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#include <gdk/gdk.h>
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#if (GTK_MAJOR_VERSION == 3)
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#include <gtk/gtkx.h>
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#else
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#include "gtk2xtbin.h"
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#endif
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#include "mozilla/X11Util.h"
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static gboolean plug_removed_cb (GtkWidget *widget, gpointer data);
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static void socket_unrealize_cb (GtkWidget *widget, gpointer data);
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nsPluginNativeWindowGtk::nsPluginNativeWindowGtk() : nsPluginNativeWindow()
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{
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// initialize the struct fields
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window = nullptr;
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x = 0;
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y = 0;
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width = 0;
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height = 0;
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memset(&clipRect, 0, sizeof(clipRect));
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ws_info = &mWsInfo;
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type = NPWindowTypeWindow;
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mSocketWidget = 0;
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mWsInfo.type = 0;
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mWsInfo.display = nullptr;
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mWsInfo.visual = nullptr;
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mWsInfo.colormap = 0;
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mWsInfo.depth = 0;
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}
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nsPluginNativeWindowGtk::~nsPluginNativeWindowGtk()
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{
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if(mSocketWidget) {
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gtk_widget_destroy(mSocketWidget);
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}
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}
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nsresult PLUG_NewPluginNativeWindow(nsPluginNativeWindow ** aPluginNativeWindow)
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{
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NS_ENSURE_ARG_POINTER(aPluginNativeWindow);
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*aPluginNativeWindow = new nsPluginNativeWindowGtk();
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return *aPluginNativeWindow ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
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}
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nsresult PLUG_DeletePluginNativeWindow(nsPluginNativeWindow * aPluginNativeWindow)
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{
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NS_ENSURE_ARG_POINTER(aPluginNativeWindow);
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nsPluginNativeWindowGtk *p = (nsPluginNativeWindowGtk *)aPluginNativeWindow;
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delete p;
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return NS_OK;
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}
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nsresult nsPluginNativeWindowGtk::CallSetWindow(nsRefPtr<nsNPAPIPluginInstance> &aPluginInstance)
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{
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if (aPluginInstance) {
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if (type == NPWindowTypeWindow &&
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XRE_GetProcessType() == GeckoProcessType_Content) {
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// In this case, most of the initialization code here has already happened
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// in the chrome process. The window we have in content is the XID of the
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// socket widget we need to hand to plugins.
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SetWindow((XID)window);
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} else if (type == NPWindowTypeWindow) {
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if (!mSocketWidget) {
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nsresult rv;
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// The documentation on the types for many variables in NP(N|P)_GetValue
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// is vague. Often boolean values are NPBool (1 byte), but
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// https://developer.mozilla.org/en/XEmbed_Extension_for_Mozilla_Plugins
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// treats NPPVpluginNeedsXEmbed as PRBool (int), and
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// on x86/32-bit, flash stores to this using |movl 0x1,&needsXEmbed|.
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// thus we can't use NPBool for needsXEmbed, or the three bytes above
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// it on the stack would get clobbered. so protect with the larger bool.
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int needsXEmbed = 0;
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rv = aPluginInstance->GetValueFromPlugin(NPPVpluginNeedsXEmbed, &needsXEmbed);
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// If the call returned an error code make sure we still use our default value.
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if (NS_FAILED(rv)) {
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needsXEmbed = 0;
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}
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#ifdef DEBUG
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printf("nsPluginNativeWindowGtk: NPPVpluginNeedsXEmbed=%d\n", needsXEmbed);
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#endif
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bool isOOPPlugin = aPluginInstance->GetPlugin()->GetLibrary()->IsOOP();
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if (needsXEmbed || isOOPPlugin) {
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bool enableXtFocus = !needsXEmbed;
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rv = CreateXEmbedWindow(enableXtFocus);
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}
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else {
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#if (MOZ_WIDGET_GTK == 2)
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rv = CreateXtWindow();
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#else
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return NS_ERROR_FAILURE;
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#endif
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}
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if (NS_FAILED(rv)) {
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return NS_ERROR_FAILURE;
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}
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}
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if (!mSocketWidget) {
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return NS_ERROR_FAILURE;
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}
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// Make sure to resize and re-place the window if required.
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SetAllocation();
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// Need to reset "window" each time as nsPluginFrame::DidReflow sets it
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// to the ancestor window.
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#if (MOZ_WIDGET_GTK == 2)
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if (GTK_IS_XTBIN(mSocketWidget)) {
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// Point the NPWindow structures window to the actual X window
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SetWindow(GTK_XTBIN(mSocketWidget)->xtwindow);
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}
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else { // XEmbed or OOP&Xt
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SetWindow(gtk_socket_get_id(GTK_SOCKET(mSocketWidget)));
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}
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#else
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// Gtk3 supports only OOP by GtkSocket
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SetWindow(gtk_socket_get_id(GTK_SOCKET(mSocketWidget)));
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#endif
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#ifdef DEBUG
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printf("nsPluginNativeWindowGtk: call SetWindow with xid=%p\n", (void *)window);
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#endif
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} // NPWindowTypeWindow
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aPluginInstance->SetWindow(this);
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} else if (mPluginInstance) {
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mPluginInstance->SetWindow(nullptr);
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}
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SetPluginInstance(aPluginInstance);
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return NS_OK;
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}
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nsresult nsPluginNativeWindowGtk::CreateXEmbedWindow(bool aEnableXtFocus) {
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NS_ASSERTION(!mSocketWidget,"Already created a socket widget!");
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GdkDisplay *display = gdk_display_get_default();
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GdkWindow *parent_win = gdk_x11_window_lookup_for_display(display, GetWindow());
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mSocketWidget = gtk_socket_new();
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//attach the socket to the container widget
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gtk_widget_set_parent_window(mSocketWidget, parent_win);
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// enable/disable focus event handlers,
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// see plugin_window_filter_func() for details
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g_object_set_data(G_OBJECT(mSocketWidget), "enable-xt-focus", (void *)aEnableXtFocus);
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// Make sure to handle the plug_removed signal. If we don't the
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// socket will automatically be destroyed when the plug is
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// removed, which means we're destroying it more than once.
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// SYNTAX ERROR.
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g_signal_connect(mSocketWidget, "plug_removed",
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G_CALLBACK(plug_removed_cb), nullptr);
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g_signal_connect(mSocketWidget, "unrealize",
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G_CALLBACK(socket_unrealize_cb), nullptr);
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g_signal_connect(mSocketWidget, "destroy",
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G_CALLBACK(gtk_widget_destroyed), &mSocketWidget);
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gpointer user_data = nullptr;
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gdk_window_get_user_data(parent_win, &user_data);
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GtkContainer *container = GTK_CONTAINER(user_data);
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gtk_container_add(container, mSocketWidget);
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gtk_widget_realize(mSocketWidget);
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// The GtkSocket has a visible window, but the plugin's XEmbed plug will
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// cover this window. Normally GtkSockets let the X server paint their
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// background and this would happen immediately (before the plug is
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// created). Setting the background to None prevents the server from
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// painting this window, avoiding flicker.
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// TODO GTK3
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#if (MOZ_WIDGET_GTK == 2)
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gdk_window_set_back_pixmap(gtk_widget_get_window(mSocketWidget), nullptr, FALSE);
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#endif
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// Resize before we show
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SetAllocation();
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gtk_widget_show(mSocketWidget);
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gdk_flush();
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SetWindow(gtk_socket_get_id(GTK_SOCKET(mSocketWidget)));
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// Fill out the ws_info structure.
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// (The windowless case is done in nsPluginFrame.cpp.)
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GdkWindow *gdkWindow = gdk_x11_window_lookup_for_display(display, GetWindow());
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if(!gdkWindow)
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return NS_ERROR_FAILURE;
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mWsInfo.display = GDK_WINDOW_XDISPLAY(gdkWindow);
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#if (MOZ_WIDGET_GTK == 2)
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mWsInfo.colormap = GDK_COLORMAP_XCOLORMAP(gdk_drawable_get_colormap(gdkWindow));
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GdkVisual* gdkVisual = gdk_drawable_get_visual(gdkWindow);
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mWsInfo.depth = gdkVisual->depth;
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#else
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mWsInfo.colormap = None;
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GdkVisual* gdkVisual = gdk_window_get_visual(gdkWindow);
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mWsInfo.depth = gdk_visual_get_depth(gdkVisual);
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#endif
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mWsInfo.visual = GDK_VISUAL_XVISUAL(gdkVisual);
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return NS_OK;
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}
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void nsPluginNativeWindowGtk::SetAllocation() {
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if (!mSocketWidget)
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return;
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GtkAllocation new_allocation;
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new_allocation.x = 0;
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new_allocation.y = 0;
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new_allocation.width = width;
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new_allocation.height = height;
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gtk_widget_size_allocate(mSocketWidget, &new_allocation);
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}
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#if (MOZ_WIDGET_GTK == 2)
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nsresult nsPluginNativeWindowGtk::CreateXtWindow() {
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NS_ASSERTION(!mSocketWidget,"Already created a socket widget!");
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#ifdef DEBUG
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printf("About to create new xtbin of %i X %i from %p...\n",
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width, height, (void*)window);
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#endif
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GdkDisplay *display = gdk_display_get_default();
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GdkWindow *gdkWindow = gdk_x11_window_lookup_for_display(display, GetWindow());
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mSocketWidget = gtk_xtbin_new(gdkWindow, 0);
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// Check to see if creating the xtbin failed for some reason.
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// if it did, we can't go any further.
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if (!mSocketWidget)
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return NS_ERROR_FAILURE;
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g_signal_connect(mSocketWidget, "destroy",
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G_CALLBACK(gtk_widget_destroyed), &mSocketWidget);
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gtk_widget_set_size_request(mSocketWidget, width, height);
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#ifdef DEBUG
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printf("About to show xtbin(%p)...\n", (void*)mSocketWidget); fflush(nullptr);
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#endif
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gtk_widget_show(mSocketWidget);
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#ifdef DEBUG
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printf("completed gtk_widget_show(%p)\n", (void*)mSocketWidget); fflush(nullptr);
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#endif
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// Fill out the ws_info structure.
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GtkXtBin* xtbin = GTK_XTBIN(mSocketWidget);
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// The xtbin has its own Display structure.
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mWsInfo.display = xtbin->xtdisplay;
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mWsInfo.colormap = xtbin->xtclient.xtcolormap;
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mWsInfo.visual = xtbin->xtclient.xtvisual;
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mWsInfo.depth = xtbin->xtclient.xtdepth;
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// Leave mWsInfo.type = 0 - Who knows what this is meant to be?
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XFlush(mWsInfo.display);
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return NS_OK;
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}
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#endif
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/* static */
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gboolean
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plug_removed_cb (GtkWidget *widget, gpointer data)
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{
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// Gee, thanks for the info!
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return TRUE;
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}
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static void
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socket_unrealize_cb(GtkWidget *widget, gpointer data)
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{
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// Unmap and reparent any child windows that GDK does not yet know about.
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// (See bug 540114 comment 10.)
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GdkWindow* socket_window = gtk_widget_get_window(widget);
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GdkDisplay* gdkDisplay = gdk_display_get_default();
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Display* display = GDK_DISPLAY_XDISPLAY(gdkDisplay);
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// Ignore X errors that may happen if windows get destroyed (possibly
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// requested by the plugin) between XQueryTree and when we operate on them.
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gdk_error_trap_push();
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Window root, parent;
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Window* children;
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unsigned int nchildren;
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if (!XQueryTree(display, gdk_x11_window_get_xid(socket_window),
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&root, &parent, &children, &nchildren))
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return;
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for (unsigned int i = 0; i < nchildren; ++i) {
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Window child = children[i];
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if (!gdk_x11_window_lookup_for_display(gdkDisplay, child)) {
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// This window is not known to GDK.
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XUnmapWindow(display, child);
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XReparentWindow(display, child, DefaultRootWindow(display), 0, 0);
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}
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}
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if (children) XFree(children);
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mozilla::FinishX(display);
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#if (MOZ_WIDGET_GTK == 3)
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gdk_error_trap_pop_ignored();
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#else
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gdk_error_trap_pop();
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#endif
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}
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