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x11: Implement "drag to top to maximize" gesture on emulated window dragging

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And the counterpart to unmaximize when dragging a maximized window, if
touch devices aren't going to use EWMH moveresize, having this one at least
makes things feel a bit less awkward.

https://bugzilla.gnome.org/show_bug.cgi?id=709914
This commit is contained in:
Carlos Garnacho 2014-03-13 21:12:55 +01:00
parent d1d4c602e0
commit 41b73e409f
1 changed files with 70 additions and 4 deletions
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74
gdk/x11/gdkwindow-x11.c
View File

@ -4871,6 +4871,51 @@ get_move_resize_data (GdkDisplay *display,
return mv_resize;
}
static void
check_maximize (MoveResizeData *mv_resize,
gdouble x_root,
gdouble y_root)
{
GdkWindowState state;
gint y;
if (mv_resize->is_resize)
return;
state = gdk_window_get_state (mv_resize->moveresize_window);
if (state & GDK_WINDOW_STATE_MAXIMIZED)
return;
y = mv_resize->moveresize_orig_y + (y_root - mv_resize->moveresize_y);
if (y < 10)
gdk_window_maximize (mv_resize->moveresize_window);
}
static void
check_unmaximize (MoveResizeData *mv_resize,
gdouble x_root,
gdouble y_root)
{
GdkWindowState state;
gint dx, dy;
if (mv_resize->is_resize)
return;
state = gdk_window_get_state (mv_resize->moveresize_window);
if ((state & GDK_WINDOW_STATE_MAXIMIZED) == 0)
return;
dx = x_root - mv_resize->moveresize_x;
dy = y_root - mv_resize->moveresize_y;
if (ABS (dx) > 20 || ABS (dy) > 20)
gdk_window_unmaximize (mv_resize->moveresize_window);
}
static void
update_pos (MoveResizeData *mv_resize,
gint new_root_x,
@ -4878,6 +4923,7 @@ update_pos (MoveResizeData *mv_resize,
{
gint dx, dy;
check_unmaximize (mv_resize, new_root_x, new_root_y);
dx = new_root_x - mv_resize->moveresize_x;
dy = new_root_y - mv_resize->moveresize_y;
@ -5066,7 +5112,12 @@ _gdk_x11_moveresize_handle_event (XEvent *event)
* get a permanently stuck grab.
*/
if ((event->xmotion.state & button_mask) == 0)
finish_drag (mv_resize);
{
check_maximize (mv_resize,
event->xmotion.x_root / impl->window_scale,
event->xmotion.y_root / impl->window_scale);
finish_drag (mv_resize);
}
break;
case ButtonRelease:
@ -5075,7 +5126,12 @@ _gdk_x11_moveresize_handle_event (XEvent *event)
event->xbutton.y_root / impl->window_scale);
if (event->xbutton.button == mv_resize->moveresize_button)
finish_drag (mv_resize);
{
check_maximize (mv_resize,
event->xmotion.x_root / impl->window_scale,
event->xmotion.y_root / impl->window_scale);
finish_drag (mv_resize);
}
break;
#if defined (HAVE_XGENERICEVENTS) && defined (XINPUT_2)
@ -5091,13 +5147,23 @@ _gdk_x11_moveresize_handle_event (XEvent *event)
update_pos (mv_resize, xev->root_x / impl->window_scale, xev->root_y / impl->window_scale);
state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
if ((state & button_mask) == 0)
finish_drag (mv_resize);
{
check_maximize (mv_resize,
xev->root_x / impl->window_scale,
xev->root_y / impl->window_scale);
finish_drag (mv_resize);
}
break;
case XI_ButtonRelease:
update_pos (mv_resize, xev->root_x / impl->window_scale, xev->root_y / impl->window_scale);
if (xev->detail == mv_resize->moveresize_button)
finish_drag (mv_resize);
{
check_maximize (mv_resize,
xev->root_x / impl->window_scale,
xev->root_y / impl->window_scale);
finish_drag (mv_resize);
}
break;
}
}