/* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE) * * click.c: Button press (mouse click) events. * */ #include "all.h" #include #include #include #include #include typedef enum { CLICK_BORDER = 0, CLICK_DECORATION = 1, CLICK_INSIDE = 2 } click_destination_t; /* * Finds the correct pair of first/second cons between the resize will take * place according to the passed border position (top, left, right, bottom), * then calls resize_graphical_handler(). * */ static bool tiling_resize_for_border(Con *con, border_t border, xcb_button_press_event_t *event) { DLOG("border = %d, con = %p\n", border, con); char way = (border == BORDER_TOP || border == BORDER_LEFT ? 'p' : 'n'); orientation_t orientation = (border == BORDER_TOP || border == BORDER_BOTTOM ? VERT : HORIZ); /* look for a parent container with the right orientation */ Con *first = NULL, *second = NULL; Con *resize_con = con; while (resize_con->type != CT_WORKSPACE && resize_con->type != CT_FLOATING_CON && resize_con->parent->orientation != orientation) resize_con = resize_con->parent; DLOG("resize_con = %p\n", resize_con); if (resize_con->type != CT_WORKSPACE && resize_con->type != CT_FLOATING_CON && resize_con->parent->orientation == orientation) { first = resize_con; second = (way == 'n') ? TAILQ_NEXT(first, nodes) : TAILQ_PREV(first, nodes_head, nodes); if (second == TAILQ_END(&(first->nodes_head))) { second = NULL; } else if (way == 'p') { Con *tmp = first; first = second; second = tmp; } DLOG("first = %p, second = %p, resize_con = %p\n", first, second, resize_con); } if (first == NULL || second == NULL) { DLOG("Resize not possible\n"); return false; } assert(first != second); assert(first->parent == second->parent); /* We modify the X/Y position in the event so that the divider line is at * the actual position of the border, not at the position of the click. */ if (orientation == HORIZ) event->root_x = second->rect.x; else event->root_y = second->rect.y; resize_graphical_handler(first, second, orientation, event); DLOG("After resize handler, rendering\n"); tree_render(); return true; } /* * Called when the user clicks using the floating_modifier, but the client is in * tiling layout. * * Returns false if it does not do anything (that is, the click should be sent * to the client). * */ static bool floating_mod_on_tiled_client(Con *con, xcb_button_press_event_t *event) { /* The client is in tiling layout. We can still initiate a resize with the * right mouse button, by chosing the border which is the most near one to * the position of the mouse pointer */ int to_right = con->rect.width - event->event_x, to_left = event->event_x, to_top = event->event_y, to_bottom = con->rect.height - event->event_y; DLOG("click was %d px to the right, %d px to the left, %d px to top, %d px to bottom\n", to_right, to_left, to_top, to_bottom); if (to_right < to_left && to_right < to_top && to_right < to_bottom) return tiling_resize_for_border(con, BORDER_RIGHT, event); if (to_left < to_right && to_left < to_top && to_left < to_bottom) return tiling_resize_for_border(con, BORDER_LEFT, event); if (to_top < to_right && to_top < to_left && to_top < to_bottom) return tiling_resize_for_border(con, BORDER_TOP, event); if (to_bottom < to_right && to_bottom < to_left && to_bottom < to_top) return tiling_resize_for_border(con, BORDER_BOTTOM, event); return false; } /* * Finds out which border was clicked on and calls tiling_resize_for_border(). * */ static bool tiling_resize(Con *con, xcb_button_press_event_t *event, const click_destination_t dest) { /* check if this was a click on the window border (and on which one) */ Rect bsr = con_border_style_rect(con); DLOG("BORDER x = %d, y = %d for con %p, window 0x%08x\n", event->event_x, event->event_y, con, event->event); DLOG("checks for right >= %d\n", con->window_rect.x + con->window_rect.width); if (dest == CLICK_DECORATION) { /* The user clicked on a window decoration. We ignore the following case: * The container is a h-split, tabbed or stacked container with > 1 * window. Decorations will end up next to each other and the user * expects to switch to a window by clicking on its decoration. */ /* Since the container might either be the child *or* already a split * container (in the case of a nested split container), we need to make * sure that we are dealing with the split container here. */ Con *check_con = con; if (con_is_leaf(check_con) && check_con->parent->type == CT_CON) check_con = check_con->parent; if ((check_con->layout == L_STACKED || check_con->layout == L_TABBED || check_con->orientation == HORIZ) && con_num_children(check_con) > 1) { DLOG("Not handling this resize, this container has > 1 child.\n"); return false; } return tiling_resize_for_border(con, BORDER_TOP, event); } if (event->event_x >= 0 && event->event_x <= bsr.x && event->event_y >= bsr.y && event->event_y <= con->rect.height + bsr.height) return tiling_resize_for_border(con, BORDER_LEFT, event); if (event->event_x >= (con->window_rect.x + con->window_rect.width) && event->event_y >= bsr.y && event->event_y <= con->rect.height + bsr.height) return tiling_resize_for_border(con, BORDER_RIGHT, event); if (event->event_y >= (con->window_rect.y + con->window_rect.height)) return tiling_resize_for_border(con, BORDER_BOTTOM, event); return false; } /* * Being called by handle_button_press, this function calls the appropriate * functions for resizing/dragging. * */ static int route_click(Con *con, xcb_button_press_event_t *event, const bool mod_pressed, const click_destination_t dest) { DLOG("--> click properties: mod = %d, destination = %d\n", mod_pressed, dest); DLOG("--> OUTCOME = %p\n", con); DLOG("type = %d, name = %s\n", con->type, con->name); /* don’t handle dockarea cons, they must not be focused */ if (con->parent->type == CT_DOCKAREA) goto done; /* get the floating con */ Con *floatingcon = con_inside_floating(con); const bool proportional = (event->state & BIND_SHIFT); const bool in_stacked = (con->parent->layout == L_STACKED || con->parent->layout == L_TABBED); /* 1: see if the user scrolled on the decoration of a stacked/tabbed con */ if (in_stacked && dest == CLICK_DECORATION && (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5)) { DLOG("Scrolling on a window decoration\n"); orientation_t orientation = (con->parent->layout == L_STACKED ? VERT : HORIZ); if (event->detail == XCB_BUTTON_INDEX_4) tree_next('p', orientation); else tree_next('n', orientation); goto done; } /* 2: focus this con */ con_focus(con); /* 3: For floating containers, we also want to raise them on click. * We will skip handling events on floating cons in fullscreen mode */ Con *ws = con_get_workspace(con); Con *fs = (ws ? con_get_fullscreen_con(ws, CF_OUTPUT) : NULL); if (floatingcon != NULL && fs == NULL) { floating_raise_con(floatingcon); /* 4: floating_modifier plus left mouse button drags */ if (mod_pressed && event->detail == 1) { floating_drag_window(floatingcon, event); return 1; } /* 5: resize (floating) if this was a click on the left/right/bottom * border. also try resizing (tiling) if it was a click on the top * border, but continue if that does not work */ if (mod_pressed && event->detail == 3) { DLOG("floating resize due to floatingmodifier\n"); floating_resize_window(floatingcon, proportional, event); return 1; } if (!in_stacked && dest == CLICK_DECORATION) { /* try tiling resize, but continue if it doesn’t work */ DLOG("tiling resize with fallback\n"); if (tiling_resize(con, event, dest)) goto done; } if (dest == CLICK_BORDER) { DLOG("floating resize due to border click\n"); floating_resize_window(floatingcon, proportional, event); return 1; } /* 6: dragging, if this was a click on a decoration (which did not lead * to a resize) */ if (!in_stacked && dest == CLICK_DECORATION) { floating_drag_window(floatingcon, event); return 1; } goto done; } if (in_stacked) { /* for stacked/tabbed cons, the resizing applies to the parent * container */ con = con->parent; } /* 7: floating modifier pressed, initiate a resize */ if (dest == CLICK_INSIDE && mod_pressed && event->detail == 3) { if (floating_mod_on_tiled_client(con, event)) return 1; } /* 8: otherwise, check for border/decoration clicks and resize */ else if (dest == CLICK_BORDER || dest == CLICK_DECORATION) { DLOG("Trying to resize (tiling)\n"); tiling_resize(con, event, dest); } done: xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time); xcb_flush(conn); tree_render(); return 0; } /* * The button press X callback. This function determines whether the floating * modifier is pressed and where the user clicked (decoration, border, inside * the window). * * Then, route_click is called on the appropriate con. * */ int handle_button_press(xcb_button_press_event_t *event) { Con *con; DLOG("Button %d pressed on window 0x%08x\n", event->state, event->event); last_timestamp = event->time; const uint32_t mod = config.floating_modifier; const bool mod_pressed = (mod != 0 && (event->state & mod) == mod); DLOG("floating_mod = %d, detail = %d\n", mod_pressed, event->detail); if ((con = con_by_window_id(event->event))) return route_click(con, event, mod_pressed, CLICK_INSIDE); if (!(con = con_by_frame_id(event->event))) { ELOG("Clicked into unknown window?!\n"); xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time); xcb_flush(conn); return 0; } /* Check if the click was on the decoration of a child */ Con *child; TAILQ_FOREACH(child, &(con->nodes_head), nodes) { if (!rect_contains(child->deco_rect, event->event_x, event->event_y)) continue; return route_click(child, event, mod_pressed, CLICK_DECORATION); } return route_click(con, event, mod_pressed, CLICK_BORDER); }