shadow_input.c

 
#include <winpr/assert.h>
#include <freerdp/config.h>
 
#include <freerdp/log.h>
#include "shadow.h"
 
#define TAG SERVER_TAG("shadow.input")
 
static BOOL shadow_input_synchronize_event(rdpInput* input, UINT32 flags)
{
  WINPR_ASSERT(input);
  rdpShadowClient* client = (rdpShadowClient*)input->context;
  WINPR_ASSERT(client);
  WINPR_ASSERT(client->server);
  rdpShadowSubsystem* subsystem = client->server->subsystem;
  WINPR_ASSERT(subsystem);
 
  WLog_DBG(TAG, "[%s] flags=0x%04" PRIx16, client->mayInteract ? "use" : "discard", flags);
  if (!client->mayInteract)
    return TRUE;
 
  return IFCALLRESULT(TRUE, subsystem->SynchronizeEvent, subsystem, client, flags);
}
 
static BOOL shadow_input_keyboard_event(rdpInput* input, UINT16 flags, UINT8 code)
{
  WINPR_ASSERT(input);
  rdpShadowClient* client = (rdpShadowClient*)input->context;
  WINPR_ASSERT(client);
  WINPR_ASSERT(client->server);
  rdpShadowSubsystem* subsystem = client->server->subsystem;
  WINPR_ASSERT(subsystem);
 
  WLog_DBG(TAG, "[%s] flags=0x%04" PRIx16, client->mayInteract ? "use" : "discard", flags);
  if (!client->mayInteract)
    return TRUE;
 
  return IFCALLRESULT(TRUE, subsystem->KeyboardEvent, subsystem, client, flags, code);
}
 
static BOOL shadow_input_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
{
  WINPR_ASSERT(input);
  rdpShadowClient* client = (rdpShadowClient*)input->context;
  WINPR_ASSERT(client);
  WINPR_ASSERT(client->server);
  rdpShadowSubsystem* subsystem = client->server->subsystem;
  WINPR_ASSERT(subsystem);
 
  WLog_DBG(TAG, "[%s] flags=0x%04" PRIx16, client->mayInteract ? "use" : "discard", flags);
  if (!client->mayInteract)
    return TRUE;
 
  return IFCALLRESULT(TRUE, subsystem->UnicodeKeyboardEvent, subsystem, client, flags, code);
}
 
static BOOL shadow_input_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
  WINPR_ASSERT(input);
  rdpShadowClient* client = (rdpShadowClient*)input->context;
  WINPR_ASSERT(client);
  WINPR_ASSERT(client->server);
  rdpShadowSubsystem* subsystem = client->server->subsystem;
  WINPR_ASSERT(subsystem);
 
  if (client->server->shareSubRect)
  {
    x += client->server->subRect.left;
    y += client->server->subRect.top;
  }
 
  if ((flags & (PTR_FLAGS_WHEEL | PTR_FLAGS_HWHEEL | PTR_FLAGS_WHEEL_NEGATIVE)) == 0)
  {
    client->pointerX = x;
    client->pointerY = y;
 
    if ((client->pointerX == subsystem->pointerX) && (client->pointerY == subsystem->pointerY))
    {
      flags &= ~PTR_FLAGS_MOVE;
 
      if (!(flags & (PTR_FLAGS_BUTTON1 | PTR_FLAGS_BUTTON2 | PTR_FLAGS_BUTTON3)))
        return TRUE;
    }
  }
 
  WLog_DBG(TAG, "[%s] flags=0x%04" PRIx16 ", x=%" PRIu16 ", y=%" PRIu16,
           client->mayInteract ? "use" : "discard", flags, x, y);
  if (!client->mayInteract)
    return TRUE;
 
  return IFCALLRESULT(TRUE, subsystem->MouseEvent, subsystem, client, flags, x, y);
}
 
static BOOL shadow_input_rel_mouse_event(rdpInput* input, UINT16 flags, INT16 xDelta, INT16 yDelta)
{
  WINPR_ASSERT(input);
 
  rdpShadowClient* client = (rdpShadowClient*)input->context;
  WINPR_ASSERT(client);
  WINPR_ASSERT(client->server);
 
  rdpShadowSubsystem* subsystem = client->server->subsystem;
  WINPR_ASSERT(subsystem);
 
  WLog_DBG(TAG, "[%s] flags=0x%04" PRIx16 ", x=%" PRId16 ", y=%" PRId16,
           client->mayInteract ? "use" : "discard", flags, xDelta, yDelta);
  const uint16_t mask = PTR_FLAGS_MOVE | PTR_FLAGS_DOWN | PTR_FLAGS_BUTTON1 | PTR_FLAGS_BUTTON2 |
                        PTR_FLAGS_BUTTON3 | PTR_XFLAGS_BUTTON1 | PTR_XFLAGS_BUTTON2;
  if ((flags & mask) != 0)
  {
    WLog_WARN(TAG, "Unknown flags 0x%04" PRIx16, flags & ~mask);
  }
  if (!client->mayInteract)
    return TRUE;
 
  return IFCALLRESULT(TRUE, subsystem->RelMouseEvent, subsystem, client, flags, xDelta, yDelta);
}
 
static BOOL shadow_input_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
  WINPR_ASSERT(input);
  rdpShadowClient* client = (rdpShadowClient*)input->context;
  WINPR_ASSERT(client);
  WINPR_ASSERT(client->server);
  rdpShadowSubsystem* subsystem = client->server->subsystem;
  WINPR_ASSERT(subsystem);
 
  if (client->server->shareSubRect)
  {
    x += client->server->subRect.left;
    y += client->server->subRect.top;
  }
 
  client->pointerX = x;
  client->pointerY = y;
 
  WLog_DBG(TAG, "[%s] flags=0x%04" PRIx16 ", x=%" PRIu16 ", y=%" PRIu16,
           client->mayInteract ? "use" : "discard", flags, x, y);
  if (!client->mayInteract)
    return TRUE;
 
  return IFCALLRESULT(TRUE, subsystem->ExtendedMouseEvent, subsystem, client, flags, x, y);
}
 
void shadow_input_register_callbacks(rdpInput* input)
{
  WINPR_ASSERT(input);
  input->SynchronizeEvent = shadow_input_synchronize_event;
  input->KeyboardEvent = shadow_input_keyboard_event;
  input->UnicodeKeyboardEvent = shadow_input_unicode_keyboard_event;
  input->MouseEvent = shadow_input_mouse_event;
  input->ExtendedMouseEvent = shadow_input_extended_mouse_event;
  input->RelMouseEvent = shadow_input_rel_mouse_event;
}