381 lines
16 KiB
C
381 lines
16 KiB
C
/*
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* vim:ts=8:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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* src/click.c: Contains the handlers for button press (mouse click) events
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* because they are quite large.
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*
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <time.h>
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#include <stdbool.h>
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#include <math.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_atom.h>
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#include <xcb/xcb_icccm.h>
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#include <X11/XKBlib.h>
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#include "i3.h"
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#include "queue.h"
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#include "table.h"
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#include "config.h"
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#include "util.h"
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#include "xcb.h"
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#include "client.h"
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#include "workspace.h"
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#include "commands.h"
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#include "floating.h"
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#include "resize.h"
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static struct Stack_Window *get_stack_window(xcb_window_t window_id) {
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struct Stack_Window *current;
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SLIST_FOREACH(current, &stack_wins, stack_windows) {
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if (current->window != window_id)
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continue;
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return current;
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}
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return NULL;
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}
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/*
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* Checks if the button press was on a stack window, handles focus setting and returns true
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* if so, or false otherwise.
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*
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*/
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static bool button_press_stackwin(xcb_connection_t *conn, xcb_button_press_event_t *event) {
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struct Stack_Window *stack_win;
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/* If we find a corresponding stack window, we can handle the event */
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if ((stack_win = get_stack_window(event->event)) == NULL)
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return false;
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/* A stack window was clicked, we check if it was button4 or button5
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which are scroll up / scroll down. */
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if (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5) {
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direction_t direction = (event->detail == XCB_BUTTON_INDEX_4 ? D_UP : D_DOWN);
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focus_window_in_container(conn, CUR_CELL, direction);
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return true;
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}
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/* It was no scrolling, so we calculate the destination client by
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dividing the Y position of the event through the height of a window
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decoration and then set the focus to this client. */
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i3Font *font = load_font(conn, config.font);
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int decoration_height = (font->height + 2 + 2);
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int destination = (event->event_y / decoration_height),
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c = 0,
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num_clients = 0;
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Client *client;
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Container *container = stack_win->container;
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CIRCLEQ_FOREACH(client, &(container->clients), clients)
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num_clients++;
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if (container->mode == MODE_TABBED)
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destination = (event->event_x / (container->width / num_clients));
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else if (container->mode == MODE_STACK &&
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container->stack_limit != STACK_LIMIT_NONE) {
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if (container->stack_limit == STACK_LIMIT_COLS) {
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int wrap = ceil((float)num_clients / container->stack_limit_value);
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int clicked_column = (event->event_x / (stack_win->rect.width / container->stack_limit_value));
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int clicked_row = (event->event_y / decoration_height);
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LOG("clicked on column %d, row %d\n", clicked_column, clicked_row);
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destination = (wrap * clicked_column) + clicked_row;
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} else {
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int width = (stack_win->rect.width / ceil((float)num_clients / container->stack_limit_value));
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int clicked_column = (event->event_x / width);
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int clicked_row = (event->event_y / decoration_height);
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LOG("clicked on column %d, row %d\n", clicked_column, clicked_row);
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destination = (container->stack_limit_value * clicked_column) + clicked_row;
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}
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}
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LOG("Click on stack_win for client %d\n", destination);
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CIRCLEQ_FOREACH(client, &(stack_win->container->clients), clients)
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if (c++ == destination) {
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set_focus(conn, client, true);
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return true;
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}
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return true;
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}
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/*
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* Checks if the button press was on a bar, switches to the workspace and returns true
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* if so, or false otherwise.
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*
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*/
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static bool button_press_bar(xcb_connection_t *conn, xcb_button_press_event_t *event) {
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i3Screen *screen;
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TAILQ_FOREACH(screen, virtual_screens, screens) {
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if (screen->bar != event->event)
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continue;
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LOG("Click on a bar\n");
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/* Check if the button was one of button4 or button5 (scroll up / scroll down) */
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if (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5) {
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Workspace *ws = c_ws;
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if (event->detail == XCB_BUTTON_INDEX_5) {
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while ((ws = TAILQ_NEXT(ws, workspaces)) != TAILQ_END(workspaces_head)) {
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if (ws->screen == screen) {
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workspace_show(conn, ws->num + 1);
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return true;
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}
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}
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} else {
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while ((ws = TAILQ_PREV(ws, workspaces_head, workspaces)) != TAILQ_END(workspaces)) {
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if (ws->screen == screen) {
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workspace_show(conn, ws->num + 1);
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return true;
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}
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}
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}
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return true;
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}
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int drawn = 0;
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/* Because workspaces can be on different screens, we need to loop
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through all of them and decide to count it based on its ->screen */
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Workspace *ws;
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TAILQ_FOREACH(ws, workspaces, workspaces) {
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if (ws->screen != screen)
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continue;
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LOG("Checking if click was on workspace %d with drawn = %d, tw = %d\n",
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ws->num, drawn, ws->text_width);
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if (event->event_x > (drawn + 1) &&
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event->event_x <= (drawn + 1 + ws->text_width + 5 + 5)) {
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workspace_show(conn, ws->num + 1);
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return true;
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}
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drawn += ws->text_width + 5 + 5 + 2;
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}
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return true;
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}
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return false;
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}
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int handle_button_press(void *ignored, xcb_connection_t *conn, xcb_button_press_event_t *event) {
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LOG("Button %d pressed\n", event->state);
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/* This was either a focus for a client’s parent (= titlebar)… */
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Client *client = table_get(&by_child, event->event);
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bool border_click = false;
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if (client == NULL) {
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client = table_get(&by_parent, event->event);
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border_click = true;
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}
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/* See if this was a click with the configured modifier. If so, we need
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* to move around the client if it was floating. if not, we just process
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* as usual. */
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if (config.floating_modifier != 0 &&
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(event->state & config.floating_modifier) != 0) {
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if (client == NULL) {
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LOG("Not handling, floating_modifier was pressed and no client found\n");
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return 1;
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}
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if (client->fullscreen) {
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LOG("Not handling, client is in fullscreen mode\n");
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return 1;
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}
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if (client_is_floating(client)) {
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LOG("button %d pressed\n", event->detail);
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if (event->detail == 1) {
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LOG("left mouse button, dragging\n");
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floating_drag_window(conn, client, event);
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} else if (event->detail == 3) {
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LOG("right mouse button\n");
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floating_resize_window(conn, client, event);
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}
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return 1;
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} else {
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/* The client is in tiling layout. We can still
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* initiate a resize with the right mouse button,
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* by chosing the border which is the most near one
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* to the position of the mouse pointer */
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if (event->detail == 3) {
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int to_right = client->rect.width - event->event_x,
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to_left = event->event_x,
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to_top = event->event_y,
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to_bottom = client->rect.height - event->event_y;
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resize_orientation_t orientation = O_VERTICAL;
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Container *con = client->container;
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Workspace *ws = con->workspace;
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int first = 0, second = 0;
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LOG("click was %d px to the right, %d px to the left, %d px to top, %d px to bottom\n",
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to_right, to_left, to_top, to_bottom);
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if (to_right < to_left &&
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to_right < to_top &&
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to_right < to_bottom) {
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/* …right border */
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first = con->col + (con->colspan - 1);
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LOG("column %d\n", first);
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if (!cell_exists(first, con->row) ||
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(first == (ws->cols-1)))
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return 1;
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second = first + 1;
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} else if (to_left < to_right &&
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to_left < to_top &&
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to_left < to_bottom) {
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/* …left border */
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if (con->col == 0)
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return 1;
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first = con->col - 1;
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second = con->col;
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} else if (to_top < to_right &&
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to_top < to_left &&
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to_top < to_bottom) {
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/* This was a press on the top border */
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if (con->row == 0)
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return 1;
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first = con->row - 1;
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second = con->row;
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orientation = O_HORIZONTAL;
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} else if (to_bottom < to_right &&
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to_bottom < to_left &&
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to_bottom < to_top) {
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/* …bottom border */
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first = con->row + (con->rowspan - 1);
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if (!cell_exists(con->col, first) ||
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(first == (ws->rows-1)))
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return 1;
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second = first + 1;
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orientation = O_HORIZONTAL;
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}
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return resize_graphical_handler(conn, ws, first, second, orientation, event);
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}
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}
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}
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if (client == NULL) {
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/* The client was neither on a client’s titlebar nor on a client itself, maybe on a stack_window? */
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if (button_press_stackwin(conn, event))
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return 1;
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/* Or on a bar? */
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if (button_press_bar(conn, event))
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return 1;
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LOG("Could not handle this button press\n");
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return 1;
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}
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/* Set focus in any case */
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set_focus(conn, client, true);
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/* Let’s see if this was on the borders (= resize). If not, we’re done */
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LOG("press button on x=%d, y=%d\n", event->event_x, event->event_y);
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resize_orientation_t orientation = O_VERTICAL;
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Container *con = client->container;
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int first, second;
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if (client->dock) {
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LOG("dock. done.\n");
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xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
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xcb_flush(conn);
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return 1;
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}
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LOG("event->event_x = %d, client->rect.width = %d\n", event->event_x, client->rect.width);
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/* Some clients (xfontsel for example) seem to pass clicks on their
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* window to the parent window, thus we receive an event here which in
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* reality is a border_click. Check for the position and fix state. */
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if (border_click &&
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event->event_x >= client->child_rect.x &&
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event->event_x <= (client->child_rect.x + client->child_rect.width) &&
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event->event_y >= client->child_rect.y &&
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event->event_y <= (client->child_rect.y + client->child_rect.height)) {
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LOG("Fixing border_click = false because of click in child\n");
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border_click = false;
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}
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if (!border_click) {
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LOG("client. done.\n");
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xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
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/* Floating clients should be raised on click */
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if (client_is_floating(client))
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xcb_raise_window(conn, client->frame);
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xcb_flush(conn);
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return 1;
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}
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/* Don’t handle events inside the titlebar, only borders are interesting */
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i3Font *font = load_font(conn, config.font);
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if (event->event_y >= 2 && event->event_y <= (font->height + 2 + 2)) {
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LOG("click on titlebar\n");
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/* Floating clients can be dragged by grabbing their titlebar */
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if (client_is_floating(client)) {
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/* Firstly, we raise it. Maybe the user just wanted to raise it without grabbing */
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xcb_raise_window(conn, client->frame);
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xcb_flush(conn);
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floating_drag_window(conn, client, event);
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}
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return 1;
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}
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if (client_is_floating(client))
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return floating_border_click(conn, client, event);
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Workspace *ws = con->workspace;
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if (event->event_y < 2) {
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/* This was a press on the top border */
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if (con->row == 0)
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return 1;
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first = con->row - 1;
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second = con->row;
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orientation = O_HORIZONTAL;
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} else if (event->event_y >= (client->rect.height - 2)) {
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/* …bottom border */
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first = con->row + (con->rowspan - 1);
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if (!cell_exists(con->col, first) ||
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(first == (ws->rows-1)))
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return 1;
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second = first + 1;
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orientation = O_HORIZONTAL;
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} else if (event->event_x <= 2) {
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/* …left border */
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if (con->col == 0)
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return 1;
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first = con->col - 1;
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second = con->col;
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} else if (event->event_x > 2) {
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/* …right border */
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first = con->col + (con->colspan - 1);
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LOG("column %d\n", first);
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if (!cell_exists(first, con->row) ||
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(first == (ws->cols-1)))
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return 1;
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second = first + 1;
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}
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return resize_graphical_handler(conn, ws, first, second, orientation, event);
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}
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