gri3-wm/src/click.c

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#undef I3__FILE__
#define I3__FILE__ "click.c"
/*
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* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
* © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
*
* click.c: Button press (mouse click) events.
*
*/
#include "all.h"
#include <time.h>
#include <math.h>
#include <xcb/xcb_icccm.h>
#include <X11/XKBlib.h>
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);
Con *second = NULL;
Con *first = con;
direction_t search_direction;
switch (border) {
case BORDER_LEFT:
search_direction = D_LEFT;
break;
case BORDER_RIGHT:
search_direction = D_RIGHT;
break;
case BORDER_TOP:
search_direction = D_UP;
break;
case BORDER_BOTTOM:
search_direction = D_DOWN;
break;
}
bool res = resize_find_tiling_participants(&first, &second, search_direction);
if (!res) {
LOG("No second container in this direction found.\n");
return false;
}
assert(first != second);
assert(first->parent == second->parent);
/* The first container should always be in front of the second container */
if (search_direction == D_UP || search_direction == D_LEFT) {
Con *tmp = first;
first = second;
second = tmp;
}
const orientation_t orientation = ((border == BORDER_LEFT || border == BORDER_RIGHT) ? HORIZ : VERT);
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 ||
Introduce splith/splitv layouts, remove orientation With this commit, the "default" layout is replaced by the splith and splitv layouts. splith is equivalent to default with orientation horizontal and splitv is equivalent to default with orientation vertical. The "split h" and "split v" commands continue to work as before, they split the current container and you will end up in a split container with layout splith (after "split h") or splitv (after "split v"). To change a splith container into a splitv container, use either "layout splitv" or "layout toggle split". The latter command is used in the default config as mod+l (previously "layout default"). In case you have "layout default" in your config file, it is recommended to just replace it by "layout toggle split", which will work as "layout default" did before when pressing it once, but toggle between horizontal/vertical when pressing it repeatedly. The rationale behind this commit is that it’s cleaner to have all parameters that influence how windows are rendered in the layout itself rather than having a special parameter in combination with only one layout. This enables us to change existing split containers in all cases without breaking existing features (see ticket #464). Also, users should feel more confident about whether they are actually splitting or just changing an existing split container now. As a nice side-effect, this commit brings back the "layout toggle" feature we once had in i3 version 3 (see the userguide). AFAIK, it is safe to use in-place restart to upgrade into versions after this commit (switching to an older version will break your layout, though). Fixes #464
2012-08-04 03:04:00 +02:00
con_orientation(check_con) == 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);
}
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if (event->event_x >= 0 && event->event_x <= (int32_t)bsr.x &&
event->event_y >= (int32_t)bsr.y && event->event_y <= (int32_t)(con->rect.height + bsr.height))
return tiling_resize_for_border(con, BORDER_LEFT, event);
if (event->event_x >= (int32_t)(con->window_rect.x + con->window_rect.width) &&
event->event_y >= (int32_t)bsr.y && event->event_y <= (int32_t)(con->rect.height + bsr.height))
return tiling_resize_for_border(con, BORDER_RIGHT, event);
if (event->event_y >= (int32_t)(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);
/* dont handle dockarea cons, they must not be focused */
if (con->parent->type == CT_DOCKAREA)
goto done;
/* Any click in a workspace should focus that workspace. If the
* workspace is on another output we need to do a workspace_show in
* order for i3bar (and others) to notice the change in workspace. */
Con *ws = con_get_workspace(con);
Con *focused_workspace = con_get_workspace(focused);
if (!ws) {
ws = TAILQ_FIRST(&(output_get_content(con_get_output(con))->focus_head));
if (!ws)
goto done;
}
if (ws != focused_workspace)
workspace_show(ws);
focused_id = XCB_NONE;
/* 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);
/* Focus the currently focused container on the same level that the
* user scrolled on. e.g. the tabbed decoration contains
* "urxvt | i3: V[xterm geeqie] | firefox",
* focus is on the xterm, but the user scrolled on urxvt.
* The splitv container will be focused. */
Con *focused = con->parent;
focused = TAILQ_FIRST(&(focused->focus_head));
con_focus(focused);
/* To prevent scrolling from going outside the container (see ticket
* #557), we first check if scrolling is possible at all. */
bool scroll_prev_possible = (TAILQ_PREV(focused, nodes_head, nodes) != NULL);
bool scroll_next_possible = (TAILQ_NEXT(focused, nodes) != NULL);
if (event->detail == XCB_BUTTON_INDEX_4 && scroll_prev_possible)
tree_next('p', orientation);
else if (event->detail == XCB_BUTTON_INDEX_5 && scroll_next_possible)
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 *fs = (ws ? con_get_fullscreen_con(ws, CF_OUTPUT) : NULL);
if (floatingcon != NULL && fs != con) {
floating_raise_con(floatingcon);
/* 4: floating_modifier plus left mouse button drags */
if (mod_pressed && event->detail == XCB_BUTTON_INDEX_1) {
floating_drag_window(floatingcon, event);
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return 1;
}
/* 5: resize (floating) if this was a (left or right) click on the
* left/right/bottom border, or a right click on the decoration.
* also try resizing (tiling) if it was a click on the top */
if (mod_pressed && event->detail == XCB_BUTTON_INDEX_3) {
DLOG("floating resize due to floatingmodifier\n");
floating_resize_window(floatingcon, proportional, event);
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return 1;
}
if (!in_stacked && dest == CLICK_DECORATION) {
/* try tiling resize, but continue if it doesnt work */
DLOG("tiling resize with fallback\n");
if (tiling_resize(con, event, dest))
goto done;
}
if (dest == CLICK_DECORATION && event->detail == XCB_BUTTON_INDEX_3) {
DLOG("floating resize due to decoration right click\n");
floating_resize_window(floatingcon, proportional, event);
return 1;
}
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 == XCB_BUTTON_INDEX_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) &&
(event->detail == XCB_BUTTON_INDEX_1 ||
event->detail == XCB_BUTTON_INDEX_3)) {
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();
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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 (child 0x%08x) at (%d, %d) (root %d, %d)\n",
event->state, event->event, event->child, event->event_x, event->event_y,
event->root_x, event->root_y);
last_timestamp = event->time;
const uint32_t mod = config.floating_modifier;
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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))) {
/* If the root window is clicked, find the relevant output from the
* click coordinates and focus the output's active workspace. */
if (event->event == root) {
Con *output, *ws;
TAILQ_FOREACH (output, &(croot->nodes_head), nodes) {
if (con_is_internal(output) ||
!rect_contains(output->rect, event->event_x, event->event_y))
continue;
ws = TAILQ_FIRST(&(output_get_content(output)->focus_head));
if (ws != con_get_workspace(focused)) {
workspace_show(ws);
tree_render();
}
return 1;
}
return 0;
}
ELOG("Clicked into unknown window?!\n");
xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
xcb_flush(conn);
return 0;
}
if (event->child != XCB_NONE) {
DLOG("event->child not XCB_NONE, so this is an event which originated from a click into the application, but the application did not handle it.\n");
return route_click(con, event, mod_pressed, CLICK_INSIDE);
}
/* 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);
}