gtkappbar.c

Linux下的多协议即时通讯程序源代码

        return GDK_FILTER_CONTINUE;
}

static GdkFilterReturn wnd_sizing(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_sizing\n");
        if(ab->docked) {
                RECT *rc = (RECT*)msg->lParam;
                if(ab->side == ABE_LEFT && msg->wParam == WMSZ_RIGHT) {
                        ab->docked_rect.right = rc->right;
                        gtk_appbar_setpos(ab, msg->hwnd);
                }
                else if(ab->side == ABE_RIGHT && msg->wParam == WMSZ_LEFT) {
                        ab->docked_rect.left = rc->left;
                        gtk_appbar_setpos(ab, msg->hwnd);
                }
                return GDK_FILTER_REMOVE;
        }
        return GDK_FILTER_CONTINUE;
}
/** Notify the system that the appbar has been activated */
static GdkFilterReturn wnd_activate(GtkAppBar *ab, GdkXEvent *xevent) {
	if (ab->registered) {
		APPBARDATA abd;
		MSG *msg = (MSG*)xevent;
		purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_activate\n");

		abd.hWnd = msg->hwnd;
		abd.cbSize = sizeof(APPBARDATA);

		SHAppBarMessage(ABM_ACTIVATE, &abd);
	}
	return GDK_FILTER_CONTINUE;
}
/** Notify the system that the appbar's position has changed */
static GdkFilterReturn wnd_poschanged(GtkAppBar *ab, GdkXEvent *xevent) {
	if (ab->registered) {
		APPBARDATA abd;
		MSG *msg = (MSG*)xevent;
		purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_poschanged\n");

		abd.hWnd = msg->hwnd;
		abd.cbSize = sizeof(APPBARDATA);

		SHAppBarMessage(ABM_WINDOWPOSCHANGED, &abd);
	}
	return GDK_FILTER_CONTINUE;
}
/** The window is about to change */
static GdkFilterReturn wnd_poschanging(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;
        WINDOWPOS *wpos = (WINDOWPOS*)msg->lParam;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_poschanging\n");

        if(ab->docked || ab->docking) {
                wpos->x = ab->docked_rect.left;
                wpos->y = ab->docked_rect.top;
                wpos->cx = ab->docked_rect.right - ab->docked_rect.left;
                wpos->cy = ab->docked_rect.bottom - ab->docked_rect.top;
                if(IsIconic(msg->hwnd))
                        set_toolbar(msg->hwnd, FALSE);
                /*return GDK_FILTER_REMOVE;*/
        }
        return GDK_FILTER_CONTINUE;
}

static GdkFilterReturn wnd_exitsizemove(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_exitsizemove\n");
        if(ab->docking) {
                gtk_appbar_setpos(ab, msg->hwnd);
                ab->docking = FALSE;
                ab->docked = TRUE;
                gtk_appbar_dispatch_dock_cbs(ab, TRUE);
        }
        else if(!ab->docked) {
                gtk_appbar_unregister(ab, msg->hwnd);
                gtk_appbar_dispatch_dock_cbs(ab, FALSE);
        }

        return GDK_FILTER_CONTINUE;
}

static GdkFilterReturn wnd_showwindow(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_showwindow\n");
        if(msg->wParam && ab->docked) {
		ab->iconized = FALSE;
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "shown\n");
                ab->docked = FALSE;
                gtk_appbar_dock(ab, ab->side);
        }
        else if(!msg->wParam && ab->docked) {
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "hidden\n");
                gtk_appbar_unregister(ab, GDK_WINDOW_HWND(ab->win->window));
                set_toolbar(GDK_WINDOW_HWND(ab->win->window), FALSE);
                ab->docked = TRUE;
		ab->iconized = TRUE;
        }
        return GDK_FILTER_CONTINUE;
}
/** The window's size has changed */
static GdkFilterReturn wnd_size(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_size\n");

        if(msg->wParam == SIZE_MINIMIZED) {
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "Minimize\n");
                if(ab->docked) {
                        gtk_appbar_unregister(ab, GDK_WINDOW_HWND(ab->win->window));
                        ab->docked = TRUE;
                }
        }
        else if(msg->wParam == SIZE_RESTORED) {
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "Restore\n");
		if (!ab->iconized && ab->docked) {
                        gtk_appbar_dock(ab, ab->side);
                }
        }
        return GDK_FILTER_CONTINUE;
}

static GdkFilterReturn wnd_nchittest(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;

        if(ab->docked) {
                UINT ret = DefWindowProc(msg->hwnd, msg->message, msg->wParam, msg->lParam);

                switch(ret) {
                case HTBOTTOM:
                case HTBOTTOMLEFT:
                case HTBOTTOMRIGHT:
                case HTTOP:
                case HTTOPLEFT:
                case HTTOPRIGHT:
                        return GDK_FILTER_REMOVE;
                case HTLEFT:
                        if(ab->side == ABE_LEFT)
                                return GDK_FILTER_REMOVE;
                        break;
                case HTRIGHT:
                        if(ab->side == ABE_RIGHT)
                                return GDK_FILTER_REMOVE;
                        break;
                }
        }
        return GDK_FILTER_CONTINUE;
}

#if 0
static GdkFilterReturn wnd_initmenupopup(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;

        if(ab->docked && HIWORD(msg->lParam)) {
                HMENU sysmenu = GetSystemMenu(msg->hwnd, FALSE);
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "wnd_initpopupmenu: docked: %d ismenu: %d\n", ab->docked, IsMenu(sysmenu));
                if(EnableMenuItem(sysmenu, SC_MAXIMIZE, MF_BYCOMMAND|MF_GRAYED)<0)
                        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "SC_MAXIMIZE Menu item does not exist\n");
                if(EnableMenuItem(sysmenu, SC_MOVE, MF_BYCOMMAND|MF_GRAYED)<0)
                        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "SC_MOVE Menu item does not exist\n");
                return GDK_FILTER_CONTINUE;
        }
        else
                GetSystemMenu(msg->hwnd, TRUE);
        return GDK_FILTER_CONTINUE;
}
#endif

static GdkFilterReturn gtk_appbar_callback(GtkAppBar *ab, GdkXEvent *xevent) {
        MSG *msg = (MSG*)xevent;
	RECT orig, windowRect;

        switch (msg->wParam) {
        case ABN_STATECHANGE:
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_callback: ABN_STATECHANGE\n");
	        break;

        case ABN_FULLSCREENAPP:
                purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_callback: ABN_FULLSCREENAPP: %d\n", (BOOL)msg->lParam);
		if (!ab->iconized && ab->docked) {
		if ((BOOL)msg->lParam) {
			SetWindowPos(msg->hwnd, HWND_BOTTOM, 0, 0, 0, 0,
				SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
		} else {
			SetWindowPos(msg->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
				SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_FRAMECHANGED);
		}
		}

                break;
	case ABN_POSCHANGED:
		purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_callback: ABN_POSCHANGED\n");
		CopyRect(&orig, &(ab->docked_rect));
		get_rect_of_window(msg->hwnd, &windowRect);
		gtk_appbar_querypos(ab, msg->hwnd, windowRect);
		if (EqualRect(&orig, &(ab->docked_rect)) == 0) {
			MoveWindow(msg->hwnd, ab->docked_rect.left, ab->docked_rect.top,
				ab->docked_rect.right - ab->docked_rect.left,
				ab->docked_rect.bottom - ab->docked_rect.top, TRUE);
		}
                gtk_appbar_setpos(ab, msg->hwnd);
		break;
#if 0
	default:
		purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_callback: %d\n", msg->wParam);
#endif
        }
        return GDK_FILTER_CONTINUE;
}

static GdkFilterReturn gtk_appbar_event_filter(GdkXEvent *xevent, GdkEvent *event, gpointer data) {
	MSG *msg = (MSG*)xevent;

        /*printf("MSG: %s\n", message_to_string (msg->message));*/
        switch(msg->message) {
        case WM_EXITSIZEMOVE:
                return wnd_exitsizemove(data, xevent);
        case WM_WINDOWPOSCHANGING:
                return wnd_poschanging(data, xevent);
	case WM_WINDOWPOSCHANGED:
		return wnd_poschanged(data, xevent);
	case WM_ACTIVATE:
		return wnd_activate(data, xevent);
        case WM_SIZING:
                return wnd_sizing(data, xevent);
        case WM_MOVING:
                return wnd_moving(data, xevent);
        case WM_SHOWWINDOW:
                return wnd_showwindow(data, xevent);
        case WM_NCHITTEST:
                return wnd_nchittest(data, xevent);
#if 0
        case WM_INITMENUPOPUP:
                return wnd_initmenupopup(data, xevent);
#endif
        case WM_SIZE:
                return wnd_size(data, xevent);
        case APPBAR_CALLBACK:
                return gtk_appbar_callback(data, xevent);
#if 0
	default:
		purple_debug_info("gtkappbar", "gtk_appbar_event_filter %d\n", msg->message);
#endif
        }
        return GDK_FILTER_CONTINUE;
}

void gtk_appbar_dock(GtkAppBar *ab, UINT side) {
	RECT orig, windowRect;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_dock\n");

        if(!ab || !IsWindow(GDK_WINDOW_HWND(ab->win->window)))
                return;

        ab->side = side;
        get_window_normal_rc(GDK_WINDOW_HWND(ab->win->window), &(ab->docked_rect));
        CopyRect(&orig, &(ab->docked_rect));
	get_rect_of_window(GDK_WINDOW_HWND(ab->win->window), &windowRect);
	gtk_appbar_querypos(ab, GDK_WINDOW_HWND(ab->win->window), windowRect);
        if(EqualRect(&orig, &(ab->docked_rect)) == 0)
                MoveWindow(GDK_WINDOW_HWND(ab->win->window),
                           ab->docked_rect.left,
                           ab->docked_rect.top,
                           ab->docked_rect.right - ab->docked_rect.left,
                           ab->docked_rect.bottom - ab->docked_rect.top, TRUE);
        gtk_appbar_setpos(ab, GDK_WINDOW_HWND(ab->win->window));
        set_toolbar(GDK_WINDOW_HWND(ab->win->window), TRUE);
        ab->docked = TRUE;
}

void gtk_appbar_add_dock_cb(GtkAppBar *ab, GtkAppBarDockCB dock_cb) {
        if(!ab)
                return;
        ab->dock_cbs = g_list_append(ab->dock_cbs, dock_cb);
}

GtkAppBar *gtk_appbar_add(GtkWidget *win) {
        GtkAppBar *ab;

        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_add\n");

        if(!win)
                return NULL;
        ab = g_new0(GtkAppBar, 1);
        ab->win = win;

        /* init docking coords */
        get_window_normal_rc(GDK_WINDOW_HWND(win->window), &(ab->docked_rect));

        /* Add main window filter */
	gdk_window_add_filter(win->window,
                              gtk_appbar_event_filter,
                              ab);
        return ab;
}

void gtk_appbar_remove(GtkAppBar *ab) {
        purple_debug(PURPLE_DEBUG_INFO, "gtkappbar", "gtk_appbar_remove\n");

        if(!ab)
                return;
        gdk_window_remove_filter(ab->win->window,
                                 gtk_appbar_event_filter,
                                 ab);
        if(ab->docked) {
                gtk_window_resize(GTK_WINDOW(ab->win),
                                  ab->docked_rect.right - ab->docked_rect.left,
                                  ab->undocked_height);
                set_toolbar(GDK_WINDOW_HWND(ab->win->window), FALSE);
        }
        gtk_appbar_unregister(ab, GDK_WINDOW_HWND(ab->win->window));

        g_free(ab);
}