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common: Create a better encoding for MetaGrabOp

Browse Source 
MetaGrabOp is painful and tedious to work with, because it's a
sequential series of values, meaning we have to use a giant unreadable
switch statement to figure out some basic things about the value.

To solve this, modify the encoding for MetaGrabOp and for the specific
window grab operations so that they're a set of bitflags that we can
easily check.
This commit is contained in:
Jasper St. Pierre
2014-08-15 14:05:04 -04:00
parent 0e758a9e65
commit 517e8f6fbd
5 changed files with 174 additions and 364 deletions
Download Patch File Download Diff File Expand all files Collapse all files

99
src/core/display.c
View File

@ -1170,94 +1170,43 @@ meta_get_display (void)
gboolean
meta_grab_op_is_mouse (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
return TRUE;
if (GRAB_OP_GET_BASE_TYPE (op) != META_GRAB_OP_WINDOW_BASE)
return FALSE;
default:
return FALSE;
}
return (op & META_GRAB_OP_WINDOW_FLAG_KEYBOARD) == 0;
}
gboolean
meta_grab_op_is_keyboard (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_KEYBOARD_MOVING:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
return TRUE;
if (GRAB_OP_GET_BASE_TYPE (op) == META_GRAB_OP_WINDOW_BASE)
return FALSE;
default:
return FALSE;
}
return (op & META_GRAB_OP_WINDOW_FLAG_KEYBOARD) != 0;
}
gboolean
meta_grab_op_is_resizing (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
return TRUE;
if (GRAB_OP_GET_BASE_TYPE (op) != META_GRAB_OP_WINDOW_BASE)
return FALSE;
default:
return FALSE;
}
return (op & 0xF000) != 0;
}
gboolean
meta_grab_op_is_moving (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_KEYBOARD_MOVING:
return TRUE;
if (GRAB_OP_GET_BASE_TYPE (op) != META_GRAB_OP_WINDOW_BASE)
return FALSE;
default:
return FALSE;
}
return (op & 0xF000) != 0;
}
gboolean
meta_grab_op_is_moving_or_resizing (MetaGrabOp op)
{
return (meta_grab_op_is_moving (op) ||
meta_grab_op_is_resizing (op));
return GRAB_OP_GET_BASE_TYPE (op) == META_GRAB_OP_WINDOW_BASE;
}
/**
@ -1756,31 +1705,13 @@ get_first_freefloating_window (MetaWindow *window)
static MetaEventRoute
get_event_route_from_grab_op (MetaGrabOp op)
{
switch (op)
switch (GRAB_OP_GET_BASE_TYPE (op))
{
case META_GRAB_OP_NONE:
/* begin_grab_op shouldn't be called with META_GRAB_OP_NONE. */
g_assert_not_reached ();
case META_GRAB_OP_MOVING:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_MOVING:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
case META_GRAB_OP_WINDOW_BASE:
return META_EVENT_ROUTE_WINDOW_OP;
case META_GRAB_OP_COMPOSITOR:

56
src/core/keybindings.c
View File

@ -1998,53 +1998,33 @@ process_key_event (MetaDisplay *display,
{
if (display->grab_op == META_GRAB_OP_NONE)
return TRUE;
/* If we get here we have a global grab, because
* we're in some special keyboard mode such as window move
* mode.
*/
if ((window && window == display->grab_window) || !window)
if (window == display->grab_window)
{
switch (display->grab_op)
if (display->grab_op & META_GRAB_OP_WINDOW_FLAG_KEYBOARD)
{
if (display->grab_op == META_GRAB_OP_KEYBOARD_MOVING)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard move\n");
keep_grab = process_keyboard_move_grab (display, screen, window, event);
}
else
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard resize\n");
keep_grab = process_keyboard_resize_grab (display, screen, window, event);
}
}
else
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for mouse-only move/resize\n");
g_assert (window != NULL);
keep_grab = process_mouse_move_resize_grab (display, screen, window, event);
break;
case META_GRAB_OP_KEYBOARD_MOVING:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard move\n");
g_assert (window != NULL);
keep_grab = process_keyboard_move_grab (display, screen, window, event);
break;
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard resize\n");
g_assert (window != NULL);
keep_grab = process_keyboard_resize_grab (display, screen, window, event);
break;
default:
break;
}
}
if (!keep_grab)

234
src/core/window.c
View File

@ -5741,26 +5741,10 @@ check_resize_unmaximize(MetaWindow *window,
* monitor. If we wanted to only allow resizing smaller than the
* monitor, we'd use - dx for NE/E/SE and dx for SW/W/NW.
*/
switch (window->display->grab_op)
{
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
x_amount = dx < 0 ? - dx : dx;
break;
default:
x_amount = 0;
break;
}
if ((window->display->grab_op & (META_GRAB_OP_WINDOW_DIR_WEST | META_GRAB_OP_WINDOW_DIR_EAST)) != 0)
x_amount = dx < 0 ? - dx : dx;
else
x_amount = 0;
if (x_amount > threshold)
new_unmaximize |= META_MAXIMIZE_HORIZONTAL;
@ -5771,26 +5755,10 @@ check_resize_unmaximize(MetaWindow *window,
{
int y_amount;
switch (window->display->grab_op)
{
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
y_amount = dy < 0 ? - dy : dy;
break;
default:
y_amount = 0;
break;
}
if ((window->display->grab_op & (META_GRAB_OP_WINDOW_DIR_NORTH | META_GRAB_OP_WINDOW_DIR_SOUTH)) != 0)
y_amount = dy < 0 ? - dy : dy;
else
y_amount = 0;
if (y_amount > threshold)
new_unmaximize |= META_MAXIMIZE_VERTICAL;
@ -5870,73 +5838,34 @@ update_resize (MetaWindow *window,
if (window->display->grab_op == META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN)
{
if ((dx > 0) && (dy > 0))
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_SE;
else if ((dx < 0) && (dy > 0))
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_SW;
else if ((dx > 0) && (dy < 0))
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_NE;
else if ((dx < 0) && (dy < 0))
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_NW;
MetaGrabOp op = META_GRAB_OP_WINDOW_BASE | META_GRAB_OP_WINDOW_FLAG_KEYBOARD;
if (dx > 0)
op |= META_GRAB_OP_WINDOW_DIR_EAST;
else if (dx < 0)
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_W;
else if (dx > 0)
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_E;
else if (dy > 0)
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_S;
op |= META_GRAB_OP_WINDOW_DIR_WEST;
if (dy > 0)
op |= META_GRAB_OP_WINDOW_DIR_SOUTH;
else if (dy < 0)
window->display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_N;
op |= META_GRAB_OP_WINDOW_DIR_NORTH;
window->display->grab_op = op;
meta_window_update_keyboard_resize (window, TRUE);
}
new_unmaximize = check_resize_unmaximize (window, dx, dy);
switch (window->display->grab_op)
{
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
new_w += dx;
break;
if (window->display->grab_op & META_GRAB_OP_WINDOW_DIR_EAST)
new_w += dx;
else if (window->display->grab_op & META_GRAB_OP_WINDOW_DIR_WEST)
new_w -= dx;
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
new_w -= dx;
break;
default:
break;
}
switch (window->display->grab_op)
{
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
new_h += dy;
break;
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
new_h -= dy;
break;
default:
break;
}
if (window->display->grab_op & META_GRAB_OP_WINDOW_DIR_SOUTH)
new_h += dy;
else if (window->display->grab_op & META_GRAB_OP_WINDOW_DIR_NORTH)
new_h -= dy;
/* If we're waiting for a request for _NET_WM_SYNC_REQUEST, we'll
* resize the window when the window responds, or when we time
@ -5976,21 +5905,12 @@ update_resize (MetaWindow *window,
* aspect ratio windows don't interact nicely with the above stuff. So,
* to avoid some nasty flicker, we enforce that.
*/
switch (window->display->grab_op)
{
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_N:
new_w = old.width;
break;
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_RESIZING_W:
new_h = old.height;
break;
if ((window->display->grab_op & (META_GRAB_OP_WINDOW_DIR_WEST | META_GRAB_OP_WINDOW_DIR_EAST)) == 0)
new_w = old.width;
default:
break;
}
if ((window->display->grab_op & (META_GRAB_OP_WINDOW_DIR_NORTH | META_GRAB_OP_WINDOW_DIR_SOUTH)) == 0)
new_h = old.height;
/* compute gravity of client during operation */
gravity = meta_resize_gravity_from_grab_op (window->display->grab_op);
@ -6499,57 +6419,19 @@ warp_grab_pointer (MetaWindow *window,
meta_window_get_frame_rect (window, &rect);
switch (grab_op)
{
case META_GRAB_OP_KEYBOARD_MOVING:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
*x = rect.width / 2;
*y = rect.height / 2;
break;
if (grab_op & META_GRAB_OP_WINDOW_DIR_WEST)
*x = 0;
else if (grab_op & META_GRAB_OP_WINDOW_DIR_EAST)
*x = rect.width - 1;
else
*x = rect.width / 2;
case META_GRAB_OP_KEYBOARD_RESIZING_S:
*x = rect.width / 2;
*y = rect.height - 1;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_N:
*x = rect.width / 2;
*y = 0;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_W:
*x = 0;
*y = rect.height / 2;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_E:
*x = rect.width - 1;
*y = rect.height / 2;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
*x = rect.width - 1;
*y = rect.height - 1;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
*x = rect.width - 1;
*y = 0;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
*x = 0;
*y = rect.height - 1;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
*x = 0;
*y = 0;
break;
default:
return FALSE;
}
if (grab_op & META_GRAB_OP_WINDOW_DIR_SOUTH)
*y = 0;
else if (grab_op & META_GRAB_OP_WINDOW_DIR_NORTH)
*y = rect.height - 1;
else
*y = rect.height / 2;
*x += rect.x;
*y += rect.y;
@ -7944,7 +7826,7 @@ meta_window_handle_ungrabbed_event (MetaWindow *window,
gboolean north, south;
gboolean west, east;
MetaRectangle frame_rect;
MetaGrabOp op;
MetaGrabOp op = META_GRAB_OP_WINDOW_BASE;
meta_window_get_frame_rect (window, &frame_rect);
@ -7953,26 +7835,16 @@ meta_window_handle_ungrabbed_event (MetaWindow *window,
north = event->button.y < (frame_rect.y + 1 * frame_rect.height / 3);
south = event->button.y > (frame_rect.y + 2 * frame_rect.height / 3);
if (north && west)
op = META_GRAB_OP_RESIZING_NW;
else if (north && east)
op = META_GRAB_OP_RESIZING_NE;
else if (south && west)
op = META_GRAB_OP_RESIZING_SW;
else if (south && east)
op = META_GRAB_OP_RESIZING_SE;
else if (north)
op = META_GRAB_OP_RESIZING_N;
else if (west)
op = META_GRAB_OP_RESIZING_W;
else if (east)
op = META_GRAB_OP_RESIZING_E;
else if (south)
op = META_GRAB_OP_RESIZING_S;
else /* Middle region is no-op to avoid user triggering wrong action */
op = META_GRAB_OP_NONE;
if (west)
op |= META_GRAB_OP_WINDOW_DIR_WEST;
if (east)
op |= META_GRAB_OP_WINDOW_DIR_EAST;
if (north)
op |= META_GRAB_OP_WINDOW_DIR_NORTH;
if (south)
op |= META_GRAB_OP_WINDOW_DIR_SOUTH;
if (op != META_GRAB_OP_NONE)
if (op != META_GRAB_OP_WINDOW_BASE)
meta_display_begin_grab_op (display,
window->screen,
window,