refactor the click handling completely

Also re-implements floating modifier on tiling cons.

Fixes: #288 and a lot of headache :)
This commit is contained in:
Michael Stapelberg 2011-03-05 20:23:29 +01:00
parent 0a2ee1d2aa
commit 24463718cc
1 changed files with 198 additions and 444 deletions

View File

@ -3,7 +3,7 @@
*
* i3 - an improved dynamic tiling window manager
*
* © 2009-2010 Michael Stapelberg and contributors
* © 2009-2011 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
@ -21,142 +21,53 @@
#include "all.h"
#if 0
static struct Stack_Window *get_stack_window(xcb_window_t window_id) {
struct Stack_Window *current;
SLIST_FOREACH(current, &stack_wins, stack_windows) {
if (current->window != window_id)
continue;
return current;
}
return NULL;
}
typedef enum { CLICK_BORDER = 0, CLICK_DECORATION = 1, CLICK_INSIDE = 2 } click_destination_t;
/*
* Checks if the button press was on a stack window, handles focus setting and returns true
* if so, or false otherwise.
* 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 button_press_stackwin(xcb_connection_t *conn, xcb_button_press_event_t *event) {
struct Stack_Window *stack_win;
static bool tiling_resize_for_border(Con *con, border_t border, xcb_button_press_event_t *event) {
DLOG("border = %d\n", border);
char way = (border == BORDER_TOP || border == BORDER_LEFT ? 'p' : 'n');
orientation_t orientation = (border == BORDER_TOP || border == BORDER_BOTTOM ? VERT : HORIZ);
/* If we find a corresponding stack window, we can handle the event */
if ((stack_win = get_stack_window(event->event)) == NULL)
return false;
/* A stack window was clicked, we check if it was button4 or button5
which are scroll up / scroll down. */
if (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5) {
direction_t direction = (event->detail == XCB_BUTTON_INDEX_4 ? D_UP : D_DOWN);
focus_window_in_container(conn, CUR_CELL, direction);
return true;
/* 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->parent->orientation != orientation)
resize_con = resize_con->parent;
if (resize_con->type != CT_WORKSPACE &&
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;
}
/* It was no scrolling, so we calculate the destination client by
dividing the Y position of the event through the height of a window
decoration and then set the focus to this client. */
i3Font *font = load_font(conn, config.font);
int decoration_height = (font->height + 2 + 2);
int destination = (event->event_y / decoration_height),
c = 0,
num_clients = 0;
Client *client;
Container *container = stack_win->container;
CIRCLEQ_FOREACH(client, &(container->clients), clients)
num_clients++;
/* If we dont have any clients in this container, we cannot do
* anything useful anyways. */
if (num_clients == 0)
return true;
if (container->mode == MODE_TABBED)
destination = (event->event_x / (container->width / num_clients));
else if (container->mode == MODE_STACK &&
container->stack_limit != STACK_LIMIT_NONE) {
if (container->stack_limit == STACK_LIMIT_COLS) {
int wrap = ceil((float)num_clients / container->stack_limit_value);
int clicked_column = (event->event_x / (stack_win->rect.width / container->stack_limit_value));
int clicked_row = (event->event_y / decoration_height);
DLOG("clicked on column %d, row %d\n", clicked_column, clicked_row);
destination = (wrap * clicked_column) + clicked_row;
} else {
int width = (stack_win->rect.width / ceil((float)num_clients / container->stack_limit_value));
int clicked_column = (event->event_x / width);
int clicked_row = (event->event_y / decoration_height);
DLOG("clicked on column %d, row %d\n", clicked_column, clicked_row);
destination = (container->stack_limit_value * clicked_column) + clicked_row;
}
}
DLOG("Click on stack_win for client %d\n", destination);
CIRCLEQ_FOREACH(client, &(stack_win->container->clients), clients)
if (c++ == destination) {
set_focus(conn, client, true);
return true;
}
return true;
}
/*
* Checks if the button press was on a bar, switches to the workspace and returns true
* if so, or false otherwise.
*
*/
static bool button_press_bar(xcb_connection_t *conn, xcb_button_press_event_t *event) {
Output *output;
TAILQ_FOREACH(output, &outputs, outputs) {
if (output->bar != event->event)
continue;
DLOG("Click on a bar\n");
/* Check if the button was one of button4 or button5 (scroll up / scroll down) */
if (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5) {
Workspace *ws = c_ws;
if (event->detail == XCB_BUTTON_INDEX_5) {
while ((ws = TAILQ_NEXT(ws, workspaces)) != TAILQ_END(workspaces_head)) {
if (ws->output == output) {
workspace_show(conn, ws->num + 1);
return true;
}
}
} else {
while ((ws = TAILQ_PREV(ws, workspaces_head, workspaces)) != TAILQ_END(workspaces)) {
if (ws->output == output) {
workspace_show(conn, ws->num + 1);
return true;
}
}
}
return true;
}
int drawn = 0;
/* Because workspaces can be on different outputs, we need to loop
through all of them and decide to count it based on its ->output */
Workspace *ws;
TAILQ_FOREACH(ws, workspaces, workspaces) {
if (ws->output != output)
continue;
DLOG("Checking if click was on workspace %d with drawn = %d, tw = %d\n",
ws->num, drawn, ws->text_width);
if (event->event_x > (drawn + 1) &&
event->event_x <= (drawn + 1 + ws->text_width + 5 + 5)) {
workspace_show(conn, ws->num + 1);
return true;
}
drawn += ws->text_width + 5 + 5 + 2;
}
return true;
else if (way == 'p') {
Con *tmp = first;
first = second;
second = tmp;
}
}
if (first == NULL || second == NULL) {
DLOG("Resize not possible\n");
return false;
}
else {
assert(first != second);
assert(first->parent == second->parent);
resize_graphical_handler(first, second, orientation, event);
}
DLOG("After resize handler, rendering\n");
tree_render();
return true;
}
/*
@ -167,346 +78,189 @@ static bool button_press_bar(xcb_connection_t *conn, xcb_button_press_event_t *e
* to the client).
*
*/
static bool floating_mod_on_tiled_client(xcb_connection_t *conn, Client *client,
xcb_button_press_event_t *event) {
/* Only the right mouse button is interesting for us at the moment */
if (event->detail != 3)
return false;
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;
/* 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 = client->rect.width - event->event_x,
to_left = event->event_x,
to_top = event->event_y,
to_bottom = client->rect.height - event->event_y;
resize_orientation_t orientation = O_VERTICAL;
Container *con = client->container;
Workspace *ws = con->workspace;
int first = 0, second = 0;
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);
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_right < to_left &&
to_right < to_top &&
to_right < to_bottom) {
/* …right border */
first = con->col + (con->colspan - 1);
DLOG("column %d\n", first);
if (to_left < to_right &&
to_left < to_top &&
to_left < to_bottom)
return tiling_resize_for_border(con, BORDER_LEFT, event);
if (!cell_exists(ws, first, con->row) ||
(first == (ws->cols-1)))
return false;
if (to_top < to_right &&
to_top < to_left &&
to_top < to_bottom)
return tiling_resize_for_border(con, BORDER_TOP, event);
second = first + 1;
} else if (to_left < to_right &&
to_left < to_top &&
to_left < to_bottom) {
/* …left border */
if (con->col == 0)
return false;
if (to_bottom < to_right &&
to_bottom < to_left &&
to_bottom < to_top)
return tiling_resize_for_border(con, BORDER_BOTTOM, event);
first = con->col - 1;
second = con->col;
} else if (to_top < to_right &&
to_top < to_left &&
to_top < to_bottom) {
/* This was a press on the top border */
if (con->row == 0)
return false;
first = con->row - 1;
second = con->row;
orientation = O_HORIZONTAL;
} else if (to_bottom < to_right &&
to_bottom < to_left &&
to_bottom < to_top) {
/* …bottom border */
first = con->row + (con->rowspan - 1);
if (!cell_exists(ws, con->col, first) ||
(first == (ws->rows-1)))
return false;
return false;
}
second = first + 1;
orientation = O_HORIZONTAL;
/*
* 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, 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)
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, bool mod_pressed, 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);
/* get the floating con */
Con *floatingcon = con_inside_floating(con);
const bool proportional = (event->state & BIND_SHIFT);
/* 1: focus this con */
con_focus(con);
const bool in_stacked = (con->parent->layout == L_STACKED || con->parent->layout == L_TABBED);
/* 2: for floating containers, we also want to raise them on click */
if (floatingcon != NULL) {
floating_raise_con(floatingcon);
/* 3: floating_modifier plus left mouse button drags */
if (mod_pressed && event->detail == 1) {
floating_drag_window(floatingcon, event);
return 1;
}
return resize_graphical_handler(conn, ws, first, second, orientation, event);
}
#endif
/* 3: 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 doesnt 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;
}
/* 4: 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, floating modifier + right click resizes the
* parent container */
if (mod_pressed && event->detail == 3)
if (floating_mod_on_tiled_client(con->parent, event))
return 1;
goto done;
}
/* 3: floating modifier pressed, initiate a resize */
if (mod_pressed && event->detail == 3) {
if (floating_mod_on_tiled_client(con, event))
return 1;
}
/* 4: otherwise, check for border/decoration clicks and resize */
else if (dest == CLICK_BORDER || dest == CLICK_DECORATION) {
DLOG("Should trry resizing (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(void *ignored, xcb_connection_t *conn, xcb_button_press_event_t *event) {
/* TODO: dragging floating windows by grabbing their decoration does not
* work right now. We need to somehow recognize that special case: either
* we check if the con with the clicked decoration is the only con inside
* its parent (so that you can only drag single floating windows, not
* floating containers with multiple windows) *or* we somehow find out
* which decoration(s) are at the top and enable grabbing for them while
* resizing for the others. Maybe we could process the resizing parameters
* first and check if resizing is possible: if yes, resize, if not, drag.
*
* Also raise on click on decoration is not working. */
Con *con;
DLOG("Button %d pressed on window 0x%08x\n", event->state, event->event);
con = con_by_window_id(event->event);
bool border_click = (con == NULL);
const uint32_t mod = config.floating_modifier;
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 (border_click)
con = con_by_frame_id(event->event);
DLOG("border_click = %d, mod_pressed = %d\n", border_click, mod_pressed);
Con *clicked_into = NULL;
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;
clicked_into = child;
break;
return route_click(child, event, mod_pressed, CLICK_DECORATION);
}
DLOG("clicked_into = %p\n", clicked_into);
/* See if this was a click with the configured modifier. If so, we need
* to move around the client if it was floating. if not, we just process
* as usual. */
DLOG("state = %d, floating_modifier = %d\n", event->state, config.floating_modifier);
if (border_click || mod_pressed) {
if (con == NULL) {
LOG("Not handling, floating_modifier was pressed and no client found\n");
return 1;
}
DLOG("handling\n");
#if 0
if (con->fullscreen) {
LOG("Not handling, client is in fullscreen mode\n");
return 1;
}
#endif
Con *floatingcon = con;
if ((border_click && con->type == CT_FLOATING_CON) ||
((floatingcon = con_inside_floating(con)) != NULL &&
clicked_into == NULL)) {
LOG("button %d pressed\n", event->detail);
if (event->detail == 1) {
LOG("left mouse button, dragging\n");
floating_drag_window(floatingcon, event);
}
else if (event->detail == 3) {
bool proportional = (event->state & BIND_SHIFT);
DLOG("right mouse button\n");
floating_resize_window(floatingcon, proportional, event);
}
return 1;
}
}
if ((clicked_into ? clicked_into->parent->type : con->parent->type) == CT_DOCKAREA) {
DLOG("Not handling, this client is inside a dockarea\n");
xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
xcb_flush(conn);
return 0;
}
/* click to focus, either on the clicked window or its child if thas was a
* click into a child decoration */
con_focus((clicked_into ? clicked_into : con));
/* for floating containers, we also want to raise them on click */
Con *floatingcon = con_inside_floating(con);
if (floatingcon != NULL)
floating_raise_con(floatingcon);
tree_render();
/* if we clicked into a child decoration on a stacked/tabbed container, we
* are done and dont want to resize */
if (clicked_into &&
(con->layout == L_STACKED || con->layout == L_TABBED))
return 1;
/* 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, border_click = %d, clicked_into = %p\n",
event->event_x, event->event_y, con, event->event, border_click, clicked_into);
DLOG("checks for right >= %d\n", con->window_rect.x + con->window_rect.width);
char way = '\0';
int orientation;
if (clicked_into) {
DLOG("BORDER top\n");
way = 'p';
orientation = VERT;
} else if (event->event_x >= 0 && event->event_x <= bsr.x &&
event->event_y >= bsr.y && event->event_y <= con->rect.height + bsr.height) {
DLOG("BORDER left\n");
way = 'p';
orientation = HORIZ;
} else 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) {
DLOG("BORDER right\n");
way = 'n';
orientation = HORIZ;
} else if (event->event_y >= (con->window_rect.y + con->window_rect.height)) {
DLOG("BORDER bottom\n");
way = 'n';
orientation = VERT;
}
/* look for a parent container with the right orientation */
Con *first = NULL, *second = NULL;
if (way != '\0') {
Con *resize_con = clicked_into ? clicked_into : con;
while (resize_con->type != CT_WORKSPACE &&
resize_con->parent->orientation != orientation)
resize_con = resize_con->parent;
if (resize_con->type != CT_WORKSPACE &&
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;
}
}
}
if (first == NULL || second == NULL) {
DLOG("Replaying click\n");
/* No border click, replay the click */
xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
xcb_flush(conn);
return 0;
}
else {
assert(first != second);
assert(first->parent == second->parent);
resize_graphical_handler(first, second, orientation, event);
}
DLOG("After resize handler, rendering\n");
tree_render();
return 0;
#if 0
if (client == NULL) {
/* The client was neither on a clients titlebar nor on a client itself, maybe on a stack_window? */
if (button_press_stackwin(conn, event))
return 1;
/* Or on a bar? */
if (button_press_bar(conn, event))
return 1;
DLOG("Could not handle this button press\n");
return 1;
}
/* Set focus in any case */
set_focus(conn, client, true);
/* Lets see if this was on the borders (= resize). If not, were done */
DLOG("press button on x=%d, y=%d\n", event->event_x, event->event_y);
resize_orientation_t orientation = O_VERTICAL;
Container *con = client->container;
int first, second;
if (client->dock) {
DLOG("dock. done.\n");
xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
xcb_flush(conn);
return 1;
}
DLOG("event->event_x = %d, client->rect.width = %d\n", event->event_x, client->rect.width);
/* Some clients (xfontsel for example) seem to pass clicks on their
* window to the parent window, thus we receive an event here which in
* reality is a border_click. Check for the position and fix state. */
if (border_click &&
event->event_x >= client->child_rect.x &&
event->event_x <= (client->child_rect.x + client->child_rect.width) &&
event->event_y >= client->child_rect.y &&
event->event_y <= (client->child_rect.y + client->child_rect.height)) {
DLOG("Fixing border_click = false because of click in child\n");
border_click = false;
}
if (!border_click) {
DLOG("client. done.\n");
xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
/* Floating clients should be raised on click */
if (client_is_floating(client))
xcb_raise_window(conn, client->frame);
xcb_flush(conn);
return 1;
}
/* Dont handle events inside the titlebar, only borders are interesting */
i3Font *font = load_font(conn, config.font);
if (event->event_y >= 2 && event->event_y <= (font->height + 2 + 2)) {
DLOG("click on titlebar\n");
/* Floating clients can be dragged by grabbing their titlebar */
if (client_is_floating(client)) {
/* Firstly, we raise it. Maybe the user just wanted to raise it without grabbing */
xcb_raise_window(conn, client->frame);
xcb_flush(conn);
floating_drag_window(conn, client, event);
}
return 1;
}
if (client_is_floating(client))
return floating_border_click(conn, client, event);
Workspace *ws = con->workspace;
if (event->event_y < 2) {
/* This was a press on the top border */
if (con->row == 0)
return 1;
first = con->row - 1;
second = con->row;
orientation = O_HORIZONTAL;
} else if (event->event_y >= (client->rect.height - 2)) {
/* …bottom border */
first = con->row + (con->rowspan - 1);
if (!cell_exists(ws, con->col, first) ||
(first == (ws->rows-1)))
return 1;
second = first + 1;
orientation = O_HORIZONTAL;
} else if (event->event_x <= 2) {
/* …left border */
if (con->col == 0)
return 1;
first = con->col - 1;
second = con->col;
} else if (event->event_x > 2) {
/* …right border */
first = con->col + (con->colspan - 1);
DLOG("column %d\n", first);
if (!cell_exists(ws, first, con->row) ||
(first == (ws->cols-1)))
return 1;
second = first + 1;
}
return resize_graphical_handler(conn, ws, first, second, orientation, event);
#endif
return route_click(con, event, mod_pressed, CLICK_BORDER);
}