console.c 51.8 KB
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/*
 * Server-side console management
 *
 * Copyright (C) 1998 Alexandre Julliard
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 *               2001 Eric Pouech
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 *
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
#include <unistd.h>
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#include <signal.h>
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#include "ntstatus.h"
#define WIN32_NO_STATUS
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#include "handle.h"
#include "process.h"
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#include "request.h"
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#include "unicode.h"
#include "console.h"
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#include "winternl.h"
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/* specific access rights (FIXME: should use finer-grained access rights) */
#define CONSOLE_READ   0x01
#define CONSOLE_WRITE  0x02

static unsigned int console_map_access( struct object *obj, unsigned int access );

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static void console_input_dump( struct object *obj, int verbose );
static void console_input_destroy( struct object *obj );

static const struct object_ops console_input_ops =
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{
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    sizeof(struct console_input),     /* size */
    console_input_dump,               /* dump */
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    no_add_queue,                     /* add_queue */
    NULL,                             /* remove_queue */
    NULL,                             /* signaled */
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    no_satisfied,                     /* satisfied */
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    no_signal,                        /* signal */
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    no_get_fd,                        /* get_fd */
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    console_map_access,               /* map_access */
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    no_lookup_name,                   /* lookup_name */
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    no_close_handle,                  /* close_handle */
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    console_input_destroy             /* destroy */
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};

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static void console_input_events_dump( struct object *obj, int verbose );
static void console_input_events_destroy( struct object *obj );
static int  console_input_events_signaled( struct object *obj, struct thread *thread );

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struct console_input_events
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{
    struct object         obj;         /* object header */
    int			  num_alloc;   /* number of allocated events */
    int 		  num_used;    /* number of actually used events */
    struct console_renderer_event*	events;
};

static const struct object_ops console_input_events_ops =
{
    sizeof(struct console_input_events), /* size */
    console_input_events_dump,        /* dump */
    add_queue,                        /* add_queue */
    remove_queue,                     /* remove_queue */
    console_input_events_signaled,    /* signaled */
    no_satisfied,                     /* satisfied */
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    no_signal,                        /* signal */
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    no_get_fd,                        /* get_fd */
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    console_map_access,               /* map_access */
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    no_lookup_name,                   /* lookup_name */
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    no_close_handle,                  /* close_handle */
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    console_input_events_destroy      /* destroy */
};

struct screen_buffer
{
    struct object         obj;           /* object header */
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    struct list           entry;         /* entry in list of all screen buffers */
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    struct console_input *input;         /* associated console input */
    int                   mode;          /* output mode */
    int                   cursor_size;   /* size of cursor (percentage filled) */
    int                   cursor_visible;/* cursor visibility flag */
    int                   cursor_x;      /* position of cursor */
    int                   cursor_y;      /* position of cursor */
    int                   width;         /* size (w-h) of the screen buffer */
    int                   height;
    int                   max_width;     /* size (w-h) of the window given font size */
    int                   max_height;
    char_info_t          *data;          /* the data for each cell - a width x height matrix */
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    unsigned short        attr;          /* default attribute for screen buffer */
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    rectangle_t           win;           /* current visible window on the screen buffer *
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					  * as seen in wineconsole */
};

static void screen_buffer_dump( struct object *obj, int verbose );
static void screen_buffer_destroy( struct object *obj );

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static const struct object_ops screen_buffer_ops =
{
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    sizeof(struct screen_buffer),     /* size */
    screen_buffer_dump,               /* dump */
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    no_add_queue,                     /* add_queue */
    NULL,                             /* remove_queue */
    NULL,                             /* signaled */
    NULL,                             /* satisfied */
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    no_signal,                        /* signal */
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    no_get_fd,                        /* get_fd */
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    console_map_access,               /* map_access */
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    no_lookup_name,                   /* lookup_name */
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    no_close_handle,                  /* close_handle */
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    screen_buffer_destroy             /* destroy */
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};

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static struct list screen_buffer_list = LIST_INIT(screen_buffer_list);
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static const char_info_t empty_char_info = { ' ', 0x000f };  /* white on black space */
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/* access mapping for all console objects */
static unsigned int console_map_access( struct object *obj, unsigned int access )
{
    if (access & GENERIC_READ)    access |= SYNCHRONIZE | STANDARD_RIGHTS_READ | CONSOLE_READ;
    if (access & GENERIC_WRITE)   access |= SYNCHRONIZE | STANDARD_RIGHTS_WRITE | CONSOLE_WRITE;
    if (access & GENERIC_EXECUTE) access |= SYNCHRONIZE | STANDARD_RIGHTS_EXECUTE;
    if (access & GENERIC_ALL)     access |= STANDARD_RIGHTS_ALL | CONSOLE_READ | CONSOLE_WRITE;
    return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
}

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/* dumps the renderer events of a console */
static void console_input_events_dump( struct object *obj, int verbose )
{
    struct console_input_events *evts = (struct console_input_events *)obj;
    assert( obj->ops == &console_input_events_ops );
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    fprintf( stderr, "Console input events: %d/%d events\n",
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	     evts->num_used, evts->num_alloc );
}

/* destroys the renderer events of a console */
static void console_input_events_destroy( struct object *obj )
{
    struct console_input_events *evts = (struct console_input_events *)obj;
    assert( obj->ops == &console_input_events_ops );
    free( evts->events );
}
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/* the renderer events list is signaled when it's not empty */
static int console_input_events_signaled( struct object *obj, struct thread *thread )
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{
    struct console_input_events *evts = (struct console_input_events *)obj;
    assert( obj->ops == &console_input_events_ops );
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    return (evts->num_used != 0);
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}

/* add an event to the console's renderer events list */
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static void console_input_events_append( struct console_input_events* evts,
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					 struct console_renderer_event* evt)
{
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    int collapsed = FALSE;

    /* to be done even when evt has been generated by the rendere ? */

    /* try to collapse evt into current queue's events */
    if (evts->num_used)
    {
        struct console_renderer_event* last = &evts->events[evts->num_used - 1];

        if (last->event == CONSOLE_RENDERER_UPDATE_EVENT &&
            evt->event == CONSOLE_RENDERER_UPDATE_EVENT)
        {
            /* if two update events overlap, collapse them into a single one */
            if (last->u.update.bottom + 1 >= evt->u.update.top &&
                evt->u.update.bottom + 1 >= last->u.update.top)
            {
                last->u.update.top = min(last->u.update.top, evt->u.update.top);
                last->u.update.bottom = max(last->u.update.bottom, evt->u.update.bottom);
                collapsed = TRUE;
            }
        }
    }
    if (!collapsed)
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    {
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        if (evts->num_used == evts->num_alloc)
        {
            evts->num_alloc += 16;
            evts->events = realloc( evts->events, evts->num_alloc * sizeof(*evt) );
            assert(evts->events);
        }
        evts->events[evts->num_used++] = *evt;
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    }
    wake_up( &evts->obj, 0 );
}

/* retrieves events from the console's renderer events list */
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static void console_input_events_get( struct console_input_events* evts )
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{
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    data_size_t num = get_reply_max_size() / sizeof(evts->events[0]);
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    if (num > evts->num_used) num = evts->num_used;
    set_reply_data( evts->events, num * sizeof(evts->events[0]) );
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    if (num < evts->num_used)
    {
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        memmove( &evts->events[0], &evts->events[num],
                 (evts->num_used - num) * sizeof(evts->events[0]) );
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    }
    evts->num_used -= num;
}

static struct console_input_events *create_console_input_events(void)
{
    struct console_input_events*	evt;

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    if (!(evt = alloc_object( &console_input_events_ops ))) return NULL;
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    evt->num_alloc = evt->num_used = 0;
    evt->events = NULL;
    return evt;
}

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static struct object *create_console_input( struct thread* renderer )
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{
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    struct console_input *console_input;
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    if (!(console_input = alloc_object( &console_input_ops ))) return NULL;
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    console_input->renderer      = renderer;
    console_input->mode          = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT |
	                           ENABLE_ECHO_INPUT | ENABLE_MOUSE_INPUT;
    console_input->num_proc      = 0;
    console_input->active        = NULL;
    console_input->recnum        = 0;
    console_input->records       = NULL;
    console_input->evt           = create_console_input_events();
    console_input->title         = NULL;
    console_input->history_size  = 50;
    console_input->history       = calloc( console_input->history_size, sizeof(WCHAR*) );
    console_input->history_index = 0;
    console_input->history_mode  = 0;
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    console_input->edition_mode  = 0;
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    console_input->event         = create_event( NULL, NULL, 0, 1, 0 );
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    if (!console_input->history || !console_input->evt)
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    {
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	release_object( console_input );
	return NULL;
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    }
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    return &console_input->obj;
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}

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static struct screen_buffer *create_console_output( struct console_input *console_input )
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{
    struct screen_buffer *screen_buffer;
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    int	i;
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    if (!(screen_buffer = alloc_object( &screen_buffer_ops ))) return NULL;
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    screen_buffer->mode           = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
    screen_buffer->input          = console_input;
    screen_buffer->cursor_size    = 100;
    screen_buffer->cursor_visible = 1;
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    screen_buffer->width          = 80;
    screen_buffer->height         = 150;
    screen_buffer->max_width      = 80;
    screen_buffer->max_height     = 25;
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    screen_buffer->cursor_x       = 0;
    screen_buffer->cursor_y       = 0;
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    screen_buffer->attr           = 0x0F;
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    screen_buffer->win.left       = 0;
    screen_buffer->win.right      = screen_buffer->max_width - 1;
    screen_buffer->win.top        = 0;
    screen_buffer->win.bottom     = screen_buffer->max_height - 1;
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    list_add_head( &screen_buffer_list, &screen_buffer->entry );
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    if (!(screen_buffer->data = malloc( screen_buffer->width * screen_buffer->height *
                                        sizeof(*screen_buffer->data) )))
    {
        release_object( screen_buffer );
        return NULL;
    }
    /* clear the first row */
    for (i = 0; i < screen_buffer->width; i++) screen_buffer->data[i] = empty_char_info;
    /* and copy it to all other rows */
    for (i = 1; i < screen_buffer->height; i++)
        memcpy( &screen_buffer->data[i * screen_buffer->width], screen_buffer->data,
                screen_buffer->width * sizeof(char_info_t) );

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    if (!console_input->active)
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    {
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        struct console_renderer_event evt;
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	console_input->active = (struct screen_buffer*)grab_object( screen_buffer );

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	/* generate the initial events */
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	evt.event = CONSOLE_RENDERER_ACTIVE_SB_EVENT;
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        memset(&evt.u, 0, sizeof(evt.u));
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	console_input_events_append( console_input->evt, &evt );

	evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
	evt.u.resize.width  = screen_buffer->width;
	evt.u.resize.height = screen_buffer->height;
	console_input_events_append( console_input->evt, &evt );

	evt.event = CONSOLE_RENDERER_DISPLAY_EVENT;
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	evt.u.display.left   = screen_buffer->win.left;
	evt.u.display.top    = screen_buffer->win.top;
	evt.u.display.width  = screen_buffer->win.right - screen_buffer->win.left + 1;
	evt.u.display.height = screen_buffer->win.bottom - screen_buffer->win.top + 1;
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	console_input_events_append( console_input->evt, &evt );

	evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
	evt.u.update.top    = 0;
	evt.u.update.bottom = screen_buffer->height - 1;
	console_input_events_append( console_input->evt, &evt );

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 	evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT;
 	evt.u.cursor_geom.size    = screen_buffer->cursor_size;
 	evt.u.cursor_geom.visible = screen_buffer->cursor_visible;
 	console_input_events_append( console_input->evt, &evt );
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	evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
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	evt.u.cursor_pos.x = screen_buffer->cursor_x;
	evt.u.cursor_pos.y = screen_buffer->cursor_y;
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	console_input_events_append( console_input->evt, &evt );
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    }
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    return screen_buffer;
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}

/* free the console for this process */
int free_console( struct process *process )
{
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    struct console_input* console = process->console;

    if (!console || !console->renderer) return 0;

    process->console = NULL;
    if (--console->num_proc == 0)
    {
	/* all processes have terminated... tell the renderer to terminate too */
	struct console_renderer_event evt;
	evt.event = CONSOLE_RENDERER_EXIT_EVENT;
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        memset(&evt.u, 0, sizeof(evt.u));
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	console_input_events_append( console->evt, &evt );
    }
    release_object( console );

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    return 1;
}

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/* let process inherit the console from parent... this handle two cases :
 *	1/ generic console inheritance
 *	2/ parent is a renderer which launches process, and process should attach to the console
 *	   renderered by parent
 */
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void inherit_console(struct thread *parent_thread, struct process *process, obj_handle_t hconin)
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{
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    int done = 0;
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    struct process* parent = parent_thread->process;
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    /* if parent is a renderer, then attach current process to its console
     * a bit hacky....
     */
    if (hconin)
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    {
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	struct console_input* console;

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        /* FIXME: should we check some access rights ? */
        if ((console = (struct console_input*)get_handle_obj( parent, hconin,
                                                              0, &console_input_ops )))
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	{
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            if (console->renderer == parent_thread)
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	    {
		process->console = (struct console_input*)grab_object( console );
		process->console->num_proc++;
		done = 1;
	    }
	    release_object( console );
	}
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        else clear_error();  /* ignore error */
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    }
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    /* otherwise, if parent has a console, attach child to this console */
    if (!done && parent->console)
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    {
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	assert(parent->console->renderer);
	process->console = (struct console_input*)grab_object( parent->console );
	process->console->num_proc++;
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    }
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}

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static struct console_input* console_input_get( obj_handle_t handle, unsigned access )
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{
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    struct console_input*	console = NULL;
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    if (handle)
	console = (struct console_input *)get_handle_obj( current->process, handle,
							  access, &console_input_ops );
    else if (current->process->console)
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    {
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	assert( current->process->console->renderer );
	console = (struct console_input *)grab_object( current->process->console );
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    }
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    if (!console && !get_error()) set_error(STATUS_INVALID_PARAMETER);
    return console;
}
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struct console_signal_info
{
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    struct console_input        *console;
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    process_id_t                 group;
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    int                          signal;
};

static int propagate_console_signal_cb(struct process *process, void *user)
{
    struct console_signal_info* csi = (struct console_signal_info*)user;

    if (process->console == csi->console && process->running_threads &&
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        (!csi->group || process->group_id == csi->group))
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    {
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        /* find a suitable thread to signal */
        struct thread *thread;
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        LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
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        {
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            if (send_thread_signal( thread, csi->signal )) break;
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        }
    }
    return FALSE;
}

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static void propagate_console_signal( struct console_input *console,
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                                      int sig, process_id_t group_id )
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{
    struct console_signal_info csi;

    if (!console)
    {
        set_error( STATUS_INVALID_PARAMETER );
        return;
    }
    /* FIXME: should support the other events (like CTRL_BREAK) */
    if (sig != CTRL_C_EVENT)
    {
        set_error( STATUS_NOT_IMPLEMENTED );
        return;
    }
    csi.console = console;
    csi.signal  = SIGINT;
    csi.group   = group_id;

    enum_processes(propagate_console_signal_cb, &csi);
}

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static int get_console_mode( obj_handle_t handle )
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{
    struct object *obj;
    int ret = 0;

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    if ((obj = get_handle_obj( current->process, handle, CONSOLE_READ, NULL )))
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    {
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        if (obj->ops == &console_input_ops)
            ret = ((struct console_input *)obj)->mode;
        else if (obj->ops == &screen_buffer_ops)
            ret = ((struct screen_buffer *)obj)->mode;
        else
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            set_error( STATUS_OBJECT_TYPE_MISMATCH );
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        release_object( obj );
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    }
    return ret;
}

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/* changes the mode of either a console input or a screen buffer */
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static int set_console_mode( obj_handle_t handle, int mode )
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{
    struct object *obj;
    int ret = 0;

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    if (!(obj = get_handle_obj( current->process, handle, CONSOLE_WRITE, NULL )))
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        return 0;
    if (obj->ops == &console_input_ops)
    {
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	/* FIXME: if we remove the edit mode bits, we need (???) to clean up the history */
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        ((struct console_input *)obj)->mode = mode;
        ret = 1;
    }
    else if (obj->ops == &screen_buffer_ops)
    {
        ((struct screen_buffer *)obj)->mode = mode;
        ret = 1;
    }
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    else set_error( STATUS_OBJECT_TYPE_MISMATCH );
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    release_object( obj );
    return ret;
}

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/* add input events to a console input queue */
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static int write_console_input( struct console_input* console, int count,
                                const INPUT_RECORD *records )
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{
    INPUT_RECORD *new_rec;

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    if (!count) return 0;
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    if (!(new_rec = realloc( console->records,
                             (console->recnum + count) * sizeof(INPUT_RECORD) )))
    {
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        set_error( STATUS_NO_MEMORY );
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        release_object( console );
        return -1;
    }
    console->records = new_rec;
    memcpy( new_rec + console->recnum, records, count * sizeof(INPUT_RECORD) );
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    if (console->mode & ENABLE_PROCESSED_INPUT)
    {
        int i = 0;
        while (i < count)
        {
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            if (records[i].EventType == KEY_EVENT &&
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		records[i].Event.KeyEvent.uChar.UnicodeChar == 'C' - 64 &&
		!(records[i].Event.KeyEvent.dwControlKeyState & ENHANCED_KEY))
            {
                if (i != count - 1)
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                    memcpy( &console->records[console->recnum + i],
                            &console->records[console->recnum + i + 1],
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                            (count - i - 1) * sizeof(INPUT_RECORD) );
                count--;
                if (records[i].Event.KeyEvent.bKeyDown)
                {
                    /* send SIGINT to all processes attached to this console */
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                    propagate_console_signal( console, CTRL_C_EVENT, 0 );
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                }
            }
            else i++;
        }
    }
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    if (!console->recnum && count) set_event( console->event );
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    console->recnum += count;
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    return count;
}

/* retrieve a pointer to the console input records */
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static int read_console_input( obj_handle_t handle, int count, int flush )
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{
    struct console_input *console;

    if (!(console = (struct console_input *)get_handle_obj( current->process, handle,
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                                                            CONSOLE_READ, &console_input_ops )))
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        return -1;
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    if (!count)
    {
        /* special case: do not retrieve anything, but return
         * the total number of records available */
        count = console->recnum;
    }
    else
    {
        if (count > console->recnum) count = console->recnum;
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        set_reply_data( console->records, count * sizeof(INPUT_RECORD) );
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    }
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    if (flush)
    {
        int i;
        for (i = count; i < console->recnum; i++)
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            console->records[i-count] = console->records[i];
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        if ((console->recnum -= count) > 0)
        {
            INPUT_RECORD *new_rec = realloc( console->records,
                                             console->recnum * sizeof(INPUT_RECORD) );
            if (new_rec) console->records = new_rec;
        }
        else
        {
            free( console->records );
            console->records = NULL;
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            reset_event( console->event );
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        }
    }
    release_object( console );
    return count;
}

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/* set misc console input information */
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static int set_console_input_info( const struct set_console_input_info_request *req,
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				   const WCHAR *title, data_size_t len )
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{
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    struct console_input *console;
    struct console_renderer_event evt;

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    if (!(console = console_input_get( req->handle, CONSOLE_WRITE ))) goto error;
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    memset(&evt.u, 0, sizeof(evt.u));
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    if (req->mask & SET_CONSOLE_INPUT_INFO_ACTIVE_SB)
    {
	struct screen_buffer *screen_buffer;

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	screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->active_sb,
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								CONSOLE_READ, &screen_buffer_ops );
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	if (!screen_buffer || screen_buffer->input != console)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    if (screen_buffer) release_object( screen_buffer );
	    goto error;
	}

	if (screen_buffer != console->active)
	{
	    if (console->active) release_object( console->active );
	    console->active = screen_buffer;
	    evt.event = CONSOLE_RENDERER_ACTIVE_SB_EVENT;
	    console_input_events_append( console->evt, &evt );
	}
	else
	    release_object( screen_buffer );
    }
    if (req->mask & SET_CONSOLE_INPUT_INFO_TITLE)
    {
        WCHAR *new_title = mem_alloc( len + sizeof(WCHAR) );
        if (new_title)
        {
634
            memcpy( new_title, title, len );
635
            new_title[len / sizeof(WCHAR)] = 0;
636
            free( console->title );
637
            console->title = new_title;
638 639
	    evt.event = CONSOLE_RENDERER_TITLE_EVENT;
	    console_input_events_append( console->evt, &evt );
640 641 642 643 644 645
        }
    }
    if (req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_MODE)
    {
	console->history_mode = req->history_mode;
    }
646
    if ((req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_SIZE) &&
647 648 649 650 651 652 653 654 655 656 657 658 659
	console->history_size != req->history_size)
    {
	WCHAR**	mem = NULL;
	int	i;
	int	delta;

	if (req->history_size)
	{
	    mem = mem_alloc( req->history_size * sizeof(WCHAR*) );
	    if (!mem) goto error;
	    memset( mem, 0, req->history_size * sizeof(WCHAR*) );
	}

660
	delta = (console->history_index > req->history_size) ?
661 662 663 664 665 666 667 668 669 670 671 672 673 674 675
	    (console->history_index - req->history_size) : 0;

	for (i = delta; i < console->history_index; i++)
	{
	    mem[i - delta] = console->history[i];
	    console->history[i] = NULL;
	}
	console->history_index -= delta;

	for (i = 0; i < console->history_size; i++)
	    if (console->history[i]) free( console->history[i] );
	free( console->history );
	console->history = mem;
	console->history_size = req->history_size;
    }
676 677 678 679
    if (req->mask & SET_CONSOLE_INPUT_INFO_EDITION_MODE)
    {
        console->edition_mode = req->edition_mode;
    }
680 681 682 683 684 685 686
    release_object( console );
    return 1;
 error:
    if (console) release_object( console );
    return 0;
}

687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738
/* resize a screen buffer */
static int change_screen_buffer_size( struct screen_buffer *screen_buffer,
                                      int new_width, int new_height )
{
    int i, old_width, old_height, copy_width, copy_height;
    char_info_t *new_data;

    if (!(new_data = malloc( new_width * new_height * sizeof(*new_data) )))
    {
        set_error( STATUS_NO_MEMORY );
        return 0;
    }
    old_width = screen_buffer->width;
    old_height = screen_buffer->height;
    copy_width = min( old_width, new_width );
    copy_height = min( old_height, new_height );

    /* copy all the rows */
    for (i = 0; i < copy_height; i++)
    {
        memcpy( &new_data[i * new_width], &screen_buffer->data[i * old_width],
                copy_width * sizeof(char_info_t) );
    }

    /* clear the end of each row */
    if (new_width > old_width)
    {
        /* fill first row */
        for (i = old_width; i < new_width; i++) new_data[i] = empty_char_info;
        /* and blast it to the other rows */
        for (i = 1; i < copy_height; i++)
            memcpy( &new_data[i * new_width + old_width], &new_data[old_width],
                    (new_width - old_width) * sizeof(char_info_t) );
    }

    /* clear remaining rows */
    if (new_height > old_height)
    {
        /* fill first row */
        for (i = 0; i < new_width; i++) new_data[old_height * new_width + i] = empty_char_info;
        /* and blast it to the other rows */
        for (i = old_height+1; i < new_height; i++)
            memcpy( &new_data[i * new_width], &new_data[old_height * new_width],
                    new_width * sizeof(char_info_t) );
    }
    free( screen_buffer->data );
    screen_buffer->data = new_data;
    screen_buffer->width = new_width;
    screen_buffer->height = new_height;
    return 1;
}

739
/* set misc screen buffer information */
740 741
static int set_console_output_info( struct screen_buffer *screen_buffer,
                                    const struct set_console_output_info_request *req )
742 743 744
{
    struct console_renderer_event evt;

745
    memset(&evt.u, 0, sizeof(evt.u));
746 747 748 749 750 751 752
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_GEOM)
    {
	if (req->cursor_size < 1 || req->cursor_size > 100)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
753
        if (screen_buffer->cursor_size != req->cursor_size ||
754 755 756 757 758 759 760 761 762 763 764 765
	    screen_buffer->cursor_visible != req->cursor_visible)
	{
	    screen_buffer->cursor_size    = req->cursor_size;
	    screen_buffer->cursor_visible = req->cursor_visible;
	    evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT;
	    evt.u.cursor_geom.size    = req->cursor_size;
	    evt.u.cursor_geom.visible = req->cursor_visible;
	    console_input_events_append( screen_buffer->input->evt, &evt );
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_POS)
    {
766
	if (req->cursor_x < 0 || req->cursor_x >= screen_buffer->width ||
767 768 769 770 771
	    req->cursor_y < 0 || req->cursor_y >= screen_buffer->height)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
772
	if (screen_buffer->cursor_x != req->cursor_x || screen_buffer->cursor_y != req->cursor_y)
773
	{
774 775
	    screen_buffer->cursor_x       = req->cursor_x;
	    screen_buffer->cursor_y       = req->cursor_y;
776 777 778 779 780 781 782 783
	    evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
	    evt.u.cursor_pos.x = req->cursor_x;
	    evt.u.cursor_pos.y = req->cursor_y;
	    console_input_events_append( screen_buffer->input->evt, &evt );
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_SIZE)
    {
784 785 786 787 788 789 790 791 792
        unsigned cc;

        /* new screen-buffer cannot be smaller than actual window */
	if (req->width < screen_buffer->win.right - screen_buffer->win.left + 1 ||
            req->height < screen_buffer->win.bottom - screen_buffer->win.top + 1)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
793 794
        /* FIXME: there are also some basic minimum and max size to deal with */
        if (!change_screen_buffer_size( screen_buffer, req->width, req->height )) return 0;
795 796 797 798 799 800

	evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
	evt.u.resize.width  = req->width;
	evt.u.resize.height = req->height;
	console_input_events_append( screen_buffer->input->evt, &evt );

801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838
	evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
	evt.u.update.top    = 0;
	evt.u.update.bottom = screen_buffer->height - 1;
	console_input_events_append( screen_buffer->input->evt, &evt );

        /* scroll window to display sb */
        if (screen_buffer->win.right >= req->width)
        {       
            screen_buffer->win.right -= screen_buffer->win.left;
            screen_buffer->win.left = 0;
        }
        if (screen_buffer->win.bottom >= req->height)
        {       
            screen_buffer->win.bottom -= screen_buffer->win.top;
            screen_buffer->win.top = 0;
        }
        /* reset cursor if needed (normally, if cursor was outside of new sb, the
         * window has been shifted so that the new position of the cursor will be 
         * visible */
        cc = 0;
        if (screen_buffer->cursor_x >= req->width)
        {
            screen_buffer->cursor_x = req->width - 1;
            cc++;
        }
        if (screen_buffer->cursor_y >= req->height)
        {
            screen_buffer->cursor_y = req->height - 1;
            cc++;
        }
        if (cc)
        {
            evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
            evt.u.cursor_pos.x = req->cursor_x;
            evt.u.cursor_pos.y = req->cursor_y;
            console_input_events_append( screen_buffer->input->evt, &evt );
        }

839
	if (screen_buffer == screen_buffer->input->active &&
840 841 842 843 844 845 846 847 848 849 850 851 852 853 854
	    screen_buffer->input->mode & ENABLE_WINDOW_INPUT)
	{
	    INPUT_RECORD	ir;
	    ir.EventType = WINDOW_BUFFER_SIZE_EVENT;
	    ir.Event.WindowBufferSizeEvent.dwSize.X = req->width;
	    ir.Event.WindowBufferSizeEvent.dwSize.Y = req->height;
	    write_console_input( screen_buffer->input, 1, &ir );
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_ATTR)
    {
	screen_buffer->attr = req->attr;
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_DISPLAY_WINDOW)
    {
855
	if (req->win_left < 0 || req->win_left > req->win_right ||
856
	    req->win_right >= screen_buffer->width ||
857
	    req->win_top < 0  || req->win_top > req->win_bottom ||
858 859 860 861 862
	    req->win_bottom >= screen_buffer->height)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
863 864
	if (screen_buffer->win.left != req->win_left || screen_buffer->win.top != req->win_top ||
	    screen_buffer->win.right != req->win_right || screen_buffer->win.bottom != req->win_bottom)
865
	{
866 867 868 869
	    screen_buffer->win.left   = req->win_left;
	    screen_buffer->win.top    = req->win_top;
	    screen_buffer->win.right  = req->win_right;
	    screen_buffer->win.bottom = req->win_bottom;
870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891
	    evt.event = CONSOLE_RENDERER_DISPLAY_EVENT;
	    evt.u.display.left   = req->win_left;
	    evt.u.display.top    = req->win_top;
	    evt.u.display.width  = req->win_right - req->win_left + 1;
	    evt.u.display.height = req->win_bottom - req->win_top + 1;
	    console_input_events_append( screen_buffer->input->evt, &evt );
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_MAX_SIZE)
    {
	/* can only be done by renderer */
	if (current->process->console != screen_buffer->input)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}

	screen_buffer->max_width  = req->max_width;
	screen_buffer->max_height = req->max_height;
    }

    return 1;
892 893
}

894
/* appends a new line to history (history is a fixed size array) */
895
static void console_input_append_hist( struct console_input* console, const WCHAR* buf, data_size_t len )
896
{
897 898 899
    WCHAR*	ptr = mem_alloc( (len + 1) * sizeof(WCHAR) );

    if (!ptr)
900 901
        return;

902 903 904
    if (!console || !console->history_size)
    {
	set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
905
	free( ptr );
906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929
	return;
    }

    memcpy( ptr, buf, len * sizeof(WCHAR) );
    ptr[len] = 0;

    if (console->history_mode && console->history_index &&
	strncmpW( console->history[console->history_index - 1], ptr, len * sizeof(WCHAR) ) == 0)
    {
	/* ok, mode ask us to not use twice the same string...
	 * so just free mem and returns
	 */
	set_error( STATUS_ALIAS_EXISTS );
	free(ptr);
	return;
    }

    if (console->history_index < console->history_size)
    {
	console->history[console->history_index++] = ptr;
    }
    else
    {
	free( console->history[0]) ;
930
	memmove( &console->history[0], &console->history[1],
931 932 933
		 (console->history_size - 1) * sizeof(WCHAR*) );
	console->history[console->history_size - 1] = ptr;
    }
934 935
}

936
/* returns a line from the cache */
937
static data_size_t console_input_get_hist( struct console_input *console, int index )
938
{
939
    data_size_t ret = 0;
940

941 942
    if (index >= console->history_index) set_error( STATUS_INVALID_PARAMETER );
    else
943
    {
944 945
        ret = strlenW( console->history[index] ) * sizeof(WCHAR);
        set_reply_data( console->history[index], min( ret, get_reply_max_size() ));
946 947 948 949 950 951
    }
    return ret;
}

/* dumb dump */
static void console_input_dump( struct object *obj, int verbose )
952
{
953 954
    struct console_input *console = (struct console_input *)obj;
    assert( obj->ops == &console_input_ops );
955
    fprintf( stderr, "Console input active=%p evt=%p\n",
956
	     console->active, console->evt );
957 958
}

959 960
static void console_input_destroy( struct object *obj )
{
961 962 963 964
    struct console_input*	console_in = (struct console_input *)obj;
    struct screen_buffer*	curr;
    int				i;

965
    assert( obj->ops == &console_input_ops );
966 967
    free( console_in->title );
    free( console_in->records );
968

969
    if (console_in->active) release_object( console_in->active );
970 971
    console_in->active = NULL;

972
    LIST_FOR_EACH_ENTRY( curr, &screen_buffer_list, struct screen_buffer, entry )
973
    {
974
        if (curr->input == console_in) curr->input = NULL;
975 976 977 978
    }

    release_object( console_in->evt );
    console_in->evt = NULL;
979
    release_object( console_in->event );
980 981

    for (i = 0; i < console_in->history_size; i++)
982
        if (console_in->history[i]) free( console_in->history[i] );
983
    free( console_in->history );
984
}
985

986 987
static void screen_buffer_dump( struct object *obj, int verbose )
{
988
    struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
989
    assert( obj->ops == &screen_buffer_ops );
990 991

    fprintf(stderr, "Console screen buffer input=%p\n", screen_buffer->input );
992 993
}

994
static void screen_buffer_destroy( struct object *obj )
995
{
996
    struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
997 998 999

    assert( obj->ops == &screen_buffer_ops );

1000
    list_remove( &screen_buffer->entry );
1001

1002 1003
    if (screen_buffer->input && screen_buffer->input->active == screen_buffer)
    {
1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014
        struct screen_buffer *sb;

        screen_buffer->input->active = NULL;
        LIST_FOR_EACH_ENTRY( sb, &screen_buffer_list, struct screen_buffer, entry )
        {
            if (sb->input == screen_buffer->input)
            {
                sb->input->active = sb;
                break;
            }
        }
1015
    }
1016
    free( screen_buffer->data );
1017 1018
}

1019
/* write data into a screen buffer */
1020
static int write_console_output( struct screen_buffer *screen_buffer, data_size_t size,
1021 1022
                                 const void* data, enum char_info_mode mode,
                                 int x, int y, int wrap )
1023
{
1024
    unsigned int i;
1025
    char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x;
1026

1027 1028 1029 1030 1031 1032
    if (y >= screen_buffer->height) return 0;

    if (wrap)
        end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
    else
        end = screen_buffer->data + (y+1) * screen_buffer->width;
1033

1034
    switch(mode)
1035
    {
1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066
    case CHAR_INFO_MODE_TEXT:
        {
            const WCHAR *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) dest->ch = ptr[i];
        }
        break;
    case CHAR_INFO_MODE_ATTR:
        {
            const unsigned short *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) dest->attr = ptr[i];
        }
        break;
    case CHAR_INFO_MODE_TEXTATTR:
        {
            const char_info_t *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) *dest = ptr[i];
        }
        break;
    case CHAR_INFO_MODE_TEXTSTDATTR:
        {
            const WCHAR *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++)
            {
                dest->ch   = ptr[i];
                dest->attr = screen_buffer->attr;
            }
        }
        break;
    default:
        set_error( STATUS_INVALID_PARAMETER );
        return 0;
1067 1068
    }

1069 1070 1071 1072
    if (i && screen_buffer == screen_buffer->input->active)
    {
        struct console_renderer_event evt;
        evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
1073
        memset(&evt.u, 0, sizeof(evt.u));
1074 1075
        evt.u.update.top    = y + x / screen_buffer->width;
        evt.u.update.bottom = y + (x + i - 1) / screen_buffer->width;
1076 1077 1078 1079
        console_input_events_append( screen_buffer->input->evt, &evt );
    }
    return i;
}
1080

1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093
/* fill a screen buffer with uniform data */
static int fill_console_output( struct screen_buffer *screen_buffer, char_info_t data,
                                enum char_info_mode mode, int x, int y, int count, int wrap )
{
    int i;
    char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x;

    if (y >= screen_buffer->height) return 0;

    if (wrap)
        end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
    else
        end = screen_buffer->data + (y+1) * screen_buffer->width;
1094

1095 1096 1097
    if (count > end - dest) count = end - dest;

    switch(mode)
1098
    {
1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117
    case CHAR_INFO_MODE_TEXT:
        for (i = 0; i < count; i++) dest[i].ch = data.ch;
        break;
    case CHAR_INFO_MODE_ATTR:
        for (i = 0; i < count; i++) dest[i].attr = data.attr;
        break;
    case CHAR_INFO_MODE_TEXTATTR:
        for (i = 0; i < count; i++) dest[i] = data;
        break;
    case CHAR_INFO_MODE_TEXTSTDATTR:
        for (i = 0; i < count; i++)
        {
            dest[i].ch   = data.ch;
            dest[i].attr = screen_buffer->attr;
        }
        break;
    default:
        set_error( STATUS_INVALID_PARAMETER );
        return 0;
1118 1119
    }

1120
    if (count && screen_buffer == screen_buffer->input->active)
1121
    {
1122 1123
        struct console_renderer_event evt;
        evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
1124
        memset(&evt.u, 0, sizeof(evt.u));
1125 1126 1127
        evt.u.update.top    = y;
        evt.u.update.bottom = (y * screen_buffer->width + x + count - 1) / screen_buffer->width;
        console_input_events_append( screen_buffer->input->evt, &evt );
1128
    }
1129
    return i;
1130 1131
}

1132
/* read data from a screen buffer */
1133 1134
static void read_console_output( struct screen_buffer *screen_buffer, int x, int y,
                                 enum char_info_mode mode, int wrap )
1135
{
1136 1137
    int i;
    char_info_t *end, *src = screen_buffer->data + y * screen_buffer->width + x;
1138

1139
    if (y >= screen_buffer->height) return;
1140

1141 1142 1143 1144
    if (wrap)
        end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
    else
        end = screen_buffer->data + (y+1) * screen_buffer->width;
1145

1146
    switch(mode)
1147
    {
1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180
    case CHAR_INFO_MODE_TEXT:
        {
            WCHAR *data;
            int count = min( end - src, get_reply_max_size() / sizeof(*data) );
            if ((data = set_reply_data_size( count * sizeof(*data) )))
            {
                for (i = 0; i < count; i++) data[i] = src[i].ch;
            }
        }
        break;
    case CHAR_INFO_MODE_ATTR:
        {
            unsigned short *data;
            int count = min( end - src, get_reply_max_size() / sizeof(*data) );
            if ((data = set_reply_data_size( count * sizeof(*data) )))
            {
                for (i = 0; i < count; i++) data[i] = src[i].attr;
            }
        }
        break;
    case CHAR_INFO_MODE_TEXTATTR:
        {
            char_info_t *data;
            int count = min( end - src, get_reply_max_size() / sizeof(*data) );
            if ((data = set_reply_data_size( count * sizeof(*data) )))
            {
                for (i = 0; i < count; i++) data[i] = src[i];
            }
        }
        break;
    default:
        set_error( STATUS_INVALID_PARAMETER );
        break;
1181
    }
1182
}
1183

1184
/* scroll parts of a screen buffer */
1185
static void scroll_console_output( obj_handle_t handle, int xsrc, int ysrc, int xdst, int ydst,
1186
                                   int w, int h )
1187
{
1188 1189
    struct screen_buffer *screen_buffer;
    int				j;
1190
    char_info_t *psrc, *pdst;
1191
    struct console_renderer_event evt;
1192

1193
    if (!(screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, handle,
1194
                                                                  CONSOLE_READ, &screen_buffer_ops )))
1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
	return;
    if (xsrc < 0 || ysrc < 0 || xdst < 0 || ydst < 0 ||
	xsrc + w > screen_buffer->width  ||
	xdst + w > screen_buffer->width  ||
	ysrc + h > screen_buffer->height ||
	ydst + h > screen_buffer->height ||
	w == 0 || h == 0)
    {
	set_error( STATUS_INVALID_PARAMETER );
	release_object( screen_buffer );
	return;
    }
1207

1208
    if (ysrc < ydst)
1209
    {
1210 1211 1212 1213 1214
	psrc = &screen_buffer->data[(ysrc + h - 1) * screen_buffer->width + xsrc];
	pdst = &screen_buffer->data[(ydst + h - 1) * screen_buffer->width + xdst];

	for (j = h; j > 0; j--)
	{
1215
	    memcpy(pdst, psrc, w * sizeof(*pdst) );
1216 1217 1218
	    pdst -= screen_buffer->width;
	    psrc -= screen_buffer->width;
	}
1219
    }
1220 1221 1222 1223 1224 1225 1226
    else
    {
	psrc = &screen_buffer->data[ysrc * screen_buffer->width + xsrc];
	pdst = &screen_buffer->data[ydst * screen_buffer->width + xdst];

	for (j = 0; j < h; j++)
	{
1227
	    /* we use memmove here because when psrc and pdst are the same,
1228 1229
	     * copies are done on the same row, so the dst and src blocks
	     * can overlap */
1230
	    memmove( pdst, psrc, w * sizeof(*pdst) );
1231 1232 1233 1234 1235 1236 1237
	    pdst += screen_buffer->width;
	    psrc += screen_buffer->width;
	}
    }

    /* FIXME: this could be enhanced, by signalling scroll */
    evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
1238
    memset(&evt.u, 0, sizeof(evt.u));
1239 1240 1241
    evt.u.update.top    = min(ysrc, ydst);
    evt.u.update.bottom = max(ysrc, ydst) + h - 1;
    console_input_events_append( screen_buffer->input->evt, &evt );
1242

1243 1244 1245 1246 1247 1248
    release_object( screen_buffer );
}

/* allocate a console for the renderer */
DECL_HANDLER(alloc_console)
{
1249 1250
    obj_handle_t in = 0;
    obj_handle_t evt = 0;
1251 1252 1253 1254 1255 1256 1257
    struct process *process;
    struct process *renderer = current->process;
    struct console_input *console;

    process = (req->pid) ? get_process_from_id( req->pid ) :
              (struct process *)grab_object( renderer->parent );

1258 1259
    reply->handle_in = 0;
    reply->event = 0;
1260 1261
    if (!process) return;
    if (process != renderer && process->console)
1262 1263 1264
    {
        set_error( STATUS_ACCESS_DENIED );
        goto the_end;
1265
    }
1266
    if ((console = (struct console_input*)create_console_input( current )))
1267
    {
1268
        if ((in = alloc_handle( renderer, console, req->access, req->attributes )))
1269
        {
1270
            if ((evt = alloc_handle( renderer, console->evt, SYNCHRONIZE|GENERIC_READ|GENERIC_WRITE, 0 )))
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284
            {
                if (process != renderer)
                {
                    process->console = (struct console_input*)grab_object( console );
                    console->num_proc++;
                }
                reply->handle_in = in;
                reply->event = evt;
                release_object( console );
                goto the_end;
            }
            close_handle( renderer, in, NULL );
        }
        free_console( process );
1285 1286 1287
    }
 the_end:
    release_object( process );
1288 1289 1290 1291 1292 1293 1294 1295
}

/* free the console of the current process */
DECL_HANDLER(free_console)
{
    free_console( current->process );
}

1296 1297 1298
/* let the renderer peek the events it's waiting on */
DECL_HANDLER(get_console_renderer_events)
{
1299
    struct console_input_events *evt;
1300 1301

    evt = (struct console_input_events *)get_handle_obj( current->process, req->handle,
1302
                                                         CONSOLE_READ, &console_input_events_ops );
1303
    if (!evt) return;
1304
    console_input_events_get( evt );
1305 1306 1307
    release_object( evt );
}

1308 1309 1310
/* open a handle to the process console */
DECL_HANDLER(open_console)
{
1311
    struct object      *obj = NULL;
1312

1313
    reply->handle = 0;
1314
    if (req->from == (obj_handle_t)0)
1315
    {
1316 1317
        if (current->process->console && current->process->console->renderer)
            obj = grab_object( (struct object*)current->process->console );
1318 1319 1320
    }
    else if (req->from == (obj_handle_t)1)
    {
1321 1322 1323
         if (current->process->console && current->process->console->renderer &&
             current->process->console->active)
             obj = grab_object( (struct object*)current->process->console->active );
1324 1325 1326 1327 1328 1329 1330
    }
    else if ((obj = get_handle_obj( current->process, req->from,
                                    CONSOLE_READ|CONSOLE_WRITE, &console_input_ops )))
    {
        struct console_input *console = (struct console_input *)obj;
        obj = (console->active) ? grab_object( console->active ) : NULL;
        release_object( console );
1331 1332 1333 1334 1335
    }

    /* FIXME: req->share is not used (as in screen buffer creation)  */
    if (obj)
    {
1336
        reply->handle = alloc_handle( current->process, obj, req->access, req->attributes );
1337
        release_object( obj );
1338
    }
1339
    else if (!get_error()) set_error( STATUS_ACCESS_DENIED );
1340 1341
}

1342 1343
/* set info about a console input */
DECL_HANDLER(set_console_input_info)
1344
{
1345
    set_console_input_info( req, get_req_data(), get_req_data_size() );
1346 1347 1348
}

/* get info about a console (output only) */
1349
DECL_HANDLER(get_console_input_info)
1350
{
1351
    struct console_input *console;
1352

1353
    if (!(console = console_input_get( req->handle, CONSOLE_READ ))) return;
1354
    if (console->title)
1355
    {
1356
        data_size_t len = strlenW( console->title ) * sizeof(WCHAR);
1357 1358
        if (len > get_reply_max_size()) len = get_reply_max_size();
        set_reply_data( console->title, len );
1359
    }
1360 1361 1362
    reply->history_mode  = console->history_mode;
    reply->history_size  = console->history_size;
    reply->history_index = console->history_index;
1363 1364
    reply->edition_mode  = console->edition_mode;

1365
    release_object( console );
1366 1367 1368 1369 1370
}

/* get a console mode (input or output) */
DECL_HANDLER(get_console_mode)
{
1371
    reply->mode = get_console_mode( req->handle );
1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382
}

/* set a console mode (input or output) */
DECL_HANDLER(set_console_mode)
{
    set_console_mode( req->handle, req->mode );
}

/* add input records to a console input queue */
DECL_HANDLER(write_console_input)
{
1383 1384
    struct console_input *console;

1385
    reply->written = 0;
1386
    if (!(console = (struct console_input *)get_handle_obj( current->process, req->handle,
1387
                                                            CONSOLE_WRITE, &console_input_ops )))
1388
        return;
1389 1390
    reply->written = write_console_input( console, get_req_data_size() / sizeof(INPUT_RECORD),
                                          get_req_data() );
1391
    release_object( console );
1392 1393 1394 1395 1396
}

/* fetch input records from a console input queue */
DECL_HANDLER(read_console_input)
{
1397 1398
    int count = get_reply_max_size() / sizeof(INPUT_RECORD);
    reply->read = read_console_input( req->handle, count, req->flush );
1399
}
1400 1401 1402 1403

/* appends a string to console's history */
DECL_HANDLER(append_console_input_history)
{
1404
    struct console_input *console;
1405

1406
    if (!(console = console_input_get( req->handle, CONSOLE_WRITE ))) return;
1407
    console_input_append_hist( console, get_req_data(), get_req_data_size() / sizeof(WCHAR) );
1408 1409 1410 1411 1412 1413
    release_object( console );
}

/* appends a string to console's history */
DECL_HANDLER(get_console_input_history)
{
1414
    struct console_input *console;
1415

1416
    if (!(console = console_input_get( req->handle, CONSOLE_WRITE ))) return;
1417
    reply->total = console_input_get_hist( console, req->index );
1418 1419 1420 1421 1422 1423 1424 1425 1426
    release_object( console );
}

/* creates a screen buffer */
DECL_HANDLER(create_console_output)
{
    struct console_input*	console;
    struct screen_buffer*	screen_buffer;

1427
    if (!(console = console_input_get( req->handle_in, CONSOLE_WRITE ))) return;
1428

1429
    screen_buffer = create_console_output( console );
1430 1431
    if (screen_buffer)
    {
1432
        /* FIXME: should store sharing and test it when opening the CONOUT$ device
1433
         * see file.c on how this could be done */
1434
        reply->handle_out = alloc_handle( current->process, screen_buffer, req->access, req->attributes );
1435
        release_object( screen_buffer );
1436 1437 1438 1439 1440 1441 1442
    }
    release_object( console );
}

/* set info about a console screen buffer */
DECL_HANDLER(set_console_output_info)
{
1443
    struct screen_buffer *screen_buffer;
1444

1445
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1446
                                                                CONSOLE_WRITE, &screen_buffer_ops)))
1447 1448 1449 1450
    {
        set_console_output_info( screen_buffer, req );
        release_object( screen_buffer );
    }
1451 1452 1453 1454 1455 1456 1457 1458
}

/* get info about a console screen buffer */
DECL_HANDLER(get_console_output_info)
{
    struct screen_buffer *screen_buffer;

    if ((screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->handle,
1459
                                                                 CONSOLE_READ, &screen_buffer_ops)))
1460
    {
1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473
        reply->cursor_size    = screen_buffer->cursor_size;
        reply->cursor_visible = screen_buffer->cursor_visible;
        reply->cursor_x       = screen_buffer->cursor_x;
        reply->cursor_y       = screen_buffer->cursor_y;
        reply->width          = screen_buffer->width;
        reply->height         = screen_buffer->height;
        reply->attr           = screen_buffer->attr;
        reply->win_left       = screen_buffer->win.left;
        reply->win_top        = screen_buffer->win.top;
        reply->win_right      = screen_buffer->win.right;
        reply->win_bottom     = screen_buffer->win.bottom;
        reply->max_width      = screen_buffer->max_width;
        reply->max_height     = screen_buffer->max_height;
1474 1475 1476 1477 1478 1479 1480
        release_object( screen_buffer );
    }
}

/* read data (chars & attrs) from a screen buffer */
DECL_HANDLER(read_console_output)
{
1481
    struct screen_buffer *screen_buffer;
1482

1483
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1484
                                                                CONSOLE_READ, &screen_buffer_ops )))
1485 1486 1487 1488 1489 1490
    {
        read_console_output( screen_buffer, req->x, req->y, req->mode, req->wrap );
        reply->width  = screen_buffer->width;
        reply->height = screen_buffer->height;
        release_object( screen_buffer );
    }
1491 1492 1493 1494 1495
}

/* write data (char and/or attrs) to a screen buffer */
DECL_HANDLER(write_console_output)
{
1496
    struct screen_buffer *screen_buffer;
1497

1498
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1499
                                                                CONSOLE_WRITE, &screen_buffer_ops)))
1500 1501 1502 1503 1504 1505 1506 1507
    {
        reply->written = write_console_output( screen_buffer, get_req_data_size(), get_req_data(),
                                               req->mode, req->x, req->y, req->wrap );
        reply->width  = screen_buffer->width;
        reply->height = screen_buffer->height;
        release_object( screen_buffer );
    }
}
1508

1509 1510 1511 1512
/* fill a screen buffer with constant data (chars and/or attributes) */
DECL_HANDLER(fill_console_output)
{
    struct screen_buffer *screen_buffer;
1513

1514
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1515
                                                                CONSOLE_WRITE, &screen_buffer_ops)))
1516 1517 1518 1519 1520
    {
        reply->written = fill_console_output( screen_buffer, req->data, req->mode,
                                              req->x, req->y, req->count, req->wrap );
        release_object( screen_buffer );
    }
1521 1522 1523 1524 1525
}

/* move a rect of data in a screen buffer */
DECL_HANDLER(move_console_output)
{
1526
    scroll_console_output( req->handle, req->x_src, req->y_src, req->x_dst, req->y_dst,
1527 1528
			   req->w, req->h );
}
1529 1530 1531 1532

/* sends a signal to a console (process, group...) */
DECL_HANDLER(send_console_signal)
{
1533
    process_id_t group;
1534 1535 1536 1537

    group = req->group_id ? req->group_id : current->process->group_id;

    if (!group)
1538
        set_error( STATUS_INVALID_PARAMETER );
1539 1540 1541
    else
        propagate_console_signal( current->process->console, req->signal, group );
}
1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563

/* get console which renderer is 'current' */
static int cgwe_enum( struct process* process, void* user)
{
    if (process->console && process->console->renderer == current)
    {
        *(struct console_input**)user = process->console;
        return 1;
    }
    return 0;
}

DECL_HANDLER(get_console_wait_event)
{
    struct console_input* console = NULL;

    if (current->process->console && current->process->console->renderer)
        console = (struct console_input*)grab_object( (struct object*)current->process->console );
    else enum_processes(cgwe_enum, &console);

    if (console)
    {
1564
        reply->handle = alloc_handle( current->process, console->event, EVENT_ALL_ACCESS, 0 );
1565 1566 1567 1568
        release_object( console );
    }
    else set_error( STATUS_INVALID_PARAMETER );
}