1509 lines
55 KiB
C
1509 lines
55 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3bar - an xcb-based status- and ws-bar for i3
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* © 2010-2011 Axel Wagner and contributors (see also: LICENSE)
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*
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* xcb.c: Communicating with X
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*
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*/
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#include <xcb/xcb.h>
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#include <xcb/xproto.h>
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#include <xcb/xcb_atom.h>
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#ifdef XCB_COMPAT
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#include "xcb_compat.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <i3/ipc.h>
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#include <ev.h>
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#include <errno.h>
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#include <limits.h>
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#include <err.h>
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#include <X11/Xlib.h>
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#include <X11/XKBlib.h>
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#include <X11/extensions/XKB.h>
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#include "common.h"
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#include "libi3.h"
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/* We save the Atoms in an easy to access array, indexed by an enum */
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enum {
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#define ATOM_DO(name) name,
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#include "xcb_atoms.def"
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NUM_ATOMS
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};
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xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
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xcb_atom_t atoms[NUM_ATOMS];
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/* Variables, that are the same for all functions at all times */
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xcb_connection_t *xcb_connection;
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int screen;
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xcb_screen_t *xcb_screen;
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xcb_window_t xcb_root;
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xcb_font_t xcb_font;
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/* We need to cache some data to speed up text-width-prediction */
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xcb_query_font_reply_t *font_info;
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int font_height;
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xcb_charinfo_t *font_table;
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/* These are only relevant for XKB, which we only need for grabbing modifiers */
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Display *xkb_dpy;
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int xkb_event_base;
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int mod_pressed = 0;
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/* Because the statusline is the same on all outputs, we have
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* global buffer to render it on */
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xcb_gcontext_t statusline_ctx;
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xcb_gcontext_t statusline_clear;
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xcb_pixmap_t statusline_pm;
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uint32_t statusline_width;
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/* Event-Watchers, to interact with the user */
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ev_prepare *xcb_prep;
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ev_check *xcb_chk;
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ev_io *xcb_io;
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ev_io *xkb_io;
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/* The parsed colors */
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struct xcb_colors_t {
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uint32_t bar_fg;
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uint32_t bar_bg;
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uint32_t active_ws_fg;
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uint32_t active_ws_bg;
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uint32_t inactive_ws_fg;
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uint32_t inactive_ws_bg;
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uint32_t urgent_ws_bg;
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uint32_t urgent_ws_fg;
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uint32_t focus_ws_bg;
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uint32_t focus_ws_fg;
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};
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struct xcb_colors_t colors;
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/* We define xcb_request_failed as a macro to include the relevant line-number */
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#define xcb_request_failed(cookie, err_msg) _xcb_request_failed(cookie, err_msg, __LINE__)
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int _xcb_request_failed(xcb_void_cookie_t cookie, char *err_msg, int line) {
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xcb_generic_error_t *err;
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if ((err = xcb_request_check(xcb_connection, cookie)) != NULL) {
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fprintf(stderr, "[%s:%d] ERROR: %s. X Error Code: %d\n", __FILE__, line, err_msg, err->error_code);
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return err->error_code;
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}
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return 0;
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}
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/*
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* Predicts the length of text based on cached data.
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* The string has to be encoded in ucs2 and glyph_len has to be the length
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* of the string (in glyphs).
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*
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*/
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uint32_t predict_text_extents(xcb_char2b_t *text, uint32_t length) {
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/* If we don't have per-character data, return the maximum width */
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if (font_table == NULL) {
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return (font_info->max_bounds.character_width * length);
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}
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uint32_t width = 0;
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uint32_t i;
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for (i = 0; i < length; i++) {
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xcb_charinfo_t *info;
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int row = text[i].byte1;
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int col = text[i].byte2;
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if (row < font_info->min_byte1 || row > font_info->max_byte1 ||
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col < font_info->min_char_or_byte2 || col > font_info->max_char_or_byte2) {
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continue;
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}
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/* Don't you ask me, how this one works… */
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info = &font_table[((row - font_info->min_byte1) *
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(font_info->max_char_or_byte2 - font_info->min_char_or_byte2 + 1)) +
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(col - font_info->min_char_or_byte2)];
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if (info->character_width != 0 ||
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(info->right_side_bearing |
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info->left_side_bearing |
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info->ascent |
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info->descent) != 0) {
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width += info->character_width;
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}
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}
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return width;
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}
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/*
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* Draws text given in UCS-2-encoding to a given drawable and position
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*
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*/
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void draw_text(xcb_drawable_t drawable, xcb_gcontext_t ctx, int16_t x, int16_t y,
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xcb_char2b_t *text, uint32_t glyph_count) {
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int offset = 0;
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int16_t pos_x = x;
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int16_t font_ascent = font_info->font_ascent;
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while (glyph_count > 0) {
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uint8_t chunk_size = MIN(255, glyph_count);
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uint32_t chunk_width = predict_text_extents(text + offset, chunk_size);
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xcb_image_text_16(xcb_connection,
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chunk_size,
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drawable,
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ctx,
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pos_x, y + font_ascent,
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text + offset);
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offset += chunk_size;
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pos_x += chunk_width;
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glyph_count -= chunk_size;
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}
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}
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/*
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* Redraws the statusline to the buffer
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*
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*/
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void refresh_statusline() {
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int glyph_count;
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if (statusline == NULL) {
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return;
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}
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xcb_char2b_t *text = (xcb_char2b_t*) convert_utf8_to_ucs2(statusline, &glyph_count);
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uint32_t old_statusline_width = statusline_width;
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statusline_width = predict_text_extents(text, glyph_count);
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/* If the statusline is bigger than our screen we need to make sure that
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* the pixmap provides enough space, so re-allocate if the width grew */
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if (statusline_width > xcb_screen->width_in_pixels &&
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statusline_width > old_statusline_width)
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realloc_sl_buffer();
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xcb_rectangle_t rect = { 0, 0, xcb_screen->width_in_pixels, font_height };
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xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_clear, 1, &rect);
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draw_text(statusline_pm, statusline_ctx, 0, 0, text, glyph_count);
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FREE(text);
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}
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/*
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* Hides all bars (unmaps them)
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*
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*/
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void hide_bars() {
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if (!config.hide_on_modifier) {
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return;
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}
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i3_output *walk;
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SLIST_FOREACH(walk, outputs, slist) {
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if (!walk->active) {
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continue;
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}
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xcb_unmap_window(xcb_connection, walk->bar);
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}
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stop_child();
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}
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/*
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* Unhides all bars (maps them)
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*
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*/
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void unhide_bars() {
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if (!config.hide_on_modifier) {
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return;
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}
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i3_output *walk;
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xcb_void_cookie_t cookie;
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uint32_t mask;
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uint32_t values[5];
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cont_child();
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SLIST_FOREACH(walk, outputs, slist) {
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if (walk->bar == XCB_NONE) {
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continue;
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}
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mask = XCB_CONFIG_WINDOW_X |
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XCB_CONFIG_WINDOW_Y |
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XCB_CONFIG_WINDOW_WIDTH |
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XCB_CONFIG_WINDOW_HEIGHT |
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XCB_CONFIG_WINDOW_STACK_MODE;
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values[0] = walk->rect.x;
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if (config.position == POS_TOP)
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values[1] = walk->rect.y;
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else values[1] = walk->rect.y + walk->rect.h - font_height - 6;
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values[2] = walk->rect.w;
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values[3] = font_height + 6;
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values[4] = XCB_STACK_MODE_ABOVE;
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DLOG("Reconfiguring Window for output %s to %d,%d\n", walk->name, values[0], values[1]);
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cookie = xcb_configure_window_checked(xcb_connection,
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walk->bar,
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mask,
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values);
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if (xcb_request_failed(cookie, "Could not reconfigure window")) {
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exit(EXIT_FAILURE);
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}
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xcb_map_window(xcb_connection, walk->bar);
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}
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}
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/*
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* Parse the colors into a format that we can use
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*
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*/
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void init_colors(const struct xcb_color_strings_t *new_colors) {
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#define PARSE_COLOR(name, def) \
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do { \
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colors.name = get_colorpixel(new_colors->name ? new_colors->name : def); \
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} while (0)
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PARSE_COLOR(bar_fg, "#FFFFFF");
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PARSE_COLOR(bar_bg, "#000000");
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PARSE_COLOR(active_ws_fg, "#888888");
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PARSE_COLOR(active_ws_bg, "#222222");
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PARSE_COLOR(inactive_ws_fg, "#888888");
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PARSE_COLOR(inactive_ws_bg, "#222222");
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PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
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PARSE_COLOR(urgent_ws_bg, "#900000");
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PARSE_COLOR(focus_ws_fg, "#FFFFFF");
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PARSE_COLOR(focus_ws_bg, "#285577");
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#undef PARSE_COLOR
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}
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/*
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* Handle a button-press-event (i.e. a mouse click on one of our bars).
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* We determine, whether the click occured on a ws-button or if the scroll-
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* wheel was used and change the workspace appropriately
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*
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*/
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void handle_button(xcb_button_press_event_t *event) {
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i3_ws *cur_ws;
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/* Determine, which bar was clicked */
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i3_output *walk;
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xcb_window_t bar = event->event;
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SLIST_FOREACH(walk, outputs, slist) {
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if (walk->bar == bar) {
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break;
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}
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}
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if (walk == NULL) {
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DLOG("Unknown Bar klicked!\n");
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return;
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}
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/* TODO: Move this to extern get_ws_for_output() */
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TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
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if (cur_ws->visible) {
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break;
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}
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}
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if (cur_ws == NULL) {
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DLOG("No Workspace active?\n");
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return;
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}
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int32_t x = event->event_x;
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DLOG("Got Button %d\n", event->detail);
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switch (event->detail) {
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case 1:
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/* Left Mousbutton. We determine, which button was clicked
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* and set cur_ws accordingly */
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TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
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DLOG("x = %d\n", x);
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if (x < cur_ws->name_width + 10) {
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break;
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}
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x -= cur_ws->name_width + 10;
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}
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if (cur_ws == NULL) {
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return;
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}
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break;
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case 4:
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/* Mouse wheel down. We select the next ws */
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if (cur_ws == TAILQ_FIRST(walk->workspaces)) {
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cur_ws = TAILQ_LAST(walk->workspaces, ws_head);
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} else {
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cur_ws = TAILQ_PREV(cur_ws, ws_head, tailq);
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}
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break;
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case 5:
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/* Mouse wheel up. We select the previos ws */
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if (cur_ws == TAILQ_LAST(walk->workspaces, ws_head)) {
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cur_ws = TAILQ_FIRST(walk->workspaces);
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} else {
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cur_ws = TAILQ_NEXT(cur_ws, tailq);
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}
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break;
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}
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const size_t len = strlen(cur_ws->name) + strlen("workspace \"\"") + 1;
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char buffer[len];
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snprintf(buffer, len, "workspace \"%s\"", cur_ws->name);
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i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, buffer);
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}
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/*
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* Configures the x coordinate of all trayclients. To be called after adding a
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* new tray client or removing an old one.
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*
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*/
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static void configure_trayclients() {
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trayclient *trayclient;
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i3_output *output;
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SLIST_FOREACH(output, outputs, slist) {
|
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if (!output->active)
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continue;
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int clients = 0;
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TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
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clients++;
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DLOG("Configuring tray window %08x to x=%d\n",
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trayclient->win, output->rect.w - (clients * (font_height + 2)));
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uint32_t x = output->rect.w - (clients * (font_height + 2));
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xcb_configure_window(xcb_connection,
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trayclient->win,
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XCB_CONFIG_WINDOW_X,
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&x);
|
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}
|
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}
|
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}
|
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|
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/*
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* Handles ClientMessages (messages sent from another client directly to us).
|
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*
|
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* At the moment, only the tray window will receive client messages. All
|
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* supported client messages currently are _NET_SYSTEM_TRAY_OPCODE.
|
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*
|
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*/
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static void handle_client_message(xcb_client_message_event_t* event) {
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if (event->type == atoms[_NET_SYSTEM_TRAY_OPCODE] &&
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event->format == 32) {
|
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DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
|
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/* event->data.data32[0] is the timestamp */
|
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uint32_t op = event->data.data32[1];
|
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uint32_t mask;
|
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uint32_t values[2];
|
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if (op == SYSTEM_TRAY_REQUEST_DOCK) {
|
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xcb_window_t client = event->data.data32[2];
|
||
|
||
/* Listen for PropertyNotify events to get the most recent value of
|
||
* the XEMBED_MAPPED atom, also listen for UnmapNotify events */
|
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mask = XCB_CW_EVENT_MASK;
|
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values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
|
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XCB_EVENT_MASK_STRUCTURE_NOTIFY;
|
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xcb_change_window_attributes(xcb_connection,
|
||
client,
|
||
mask,
|
||
values);
|
||
|
||
/* Request the _XEMBED_INFO property. The XEMBED specification
|
||
* (which is referred by the tray specification) says this *has* to
|
||
* be set, but VLC does not set it… */
|
||
bool map_it = true;
|
||
int xe_version = 1;
|
||
xcb_get_property_cookie_t xembedc;
|
||
xembedc = xcb_get_property_unchecked(xcb_connection,
|
||
0,
|
||
client,
|
||
atoms[_XEMBED_INFO],
|
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XCB_GET_PROPERTY_TYPE_ANY,
|
||
0,
|
||
2 * 32);
|
||
|
||
xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
|
||
xembedc,
|
||
NULL);
|
||
if (xembedr != NULL && xembedr->length != 0) {
|
||
DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
|
||
uint32_t *xembed = xcb_get_property_value(xembedr);
|
||
DLOG("xembed version = %d\n", xembed[0]);
|
||
DLOG("xembed flags = %d\n", xembed[1]);
|
||
map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
|
||
xe_version = xembed[0];
|
||
if (xe_version > 1)
|
||
xe_version = 1;
|
||
free(xembedr);
|
||
} else {
|
||
ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
|
||
}
|
||
|
||
DLOG("X window %08x requested docking\n", client);
|
||
i3_output *walk, *output = NULL;
|
||
SLIST_FOREACH(walk, outputs, slist) {
|
||
if (!walk->active)
|
||
continue;
|
||
if (config.tray_output &&
|
||
strcasecmp(walk->name, config.tray_output) != 0)
|
||
continue;
|
||
DLOG("using output %s\n", walk->name);
|
||
output = walk;
|
||
}
|
||
if (output == NULL) {
|
||
ELOG("No output found\n");
|
||
return;
|
||
}
|
||
xcb_reparent_window(xcb_connection,
|
||
client,
|
||
output->bar,
|
||
output->rect.w - font_height - 2,
|
||
2);
|
||
/* We reconfigure the window to use a reasonable size. The systray
|
||
* specification explicitly says:
|
||
* Tray icons may be assigned any size by the system tray, and
|
||
* should do their best to cope with any size effectively
|
||
*/
|
||
mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
|
||
values[0] = font_height;
|
||
values[1] = font_height;
|
||
xcb_configure_window(xcb_connection,
|
||
client,
|
||
mask,
|
||
values);
|
||
|
||
/* send the XEMBED_EMBEDDED_NOTIFY message */
|
||
void *event = scalloc(32);
|
||
xcb_client_message_event_t *ev = event;
|
||
ev->response_type = XCB_CLIENT_MESSAGE;
|
||
ev->window = client;
|
||
ev->type = atoms[_XEMBED];
|
||
ev->format = 32;
|
||
ev->data.data32[0] = XCB_CURRENT_TIME;
|
||
ev->data.data32[1] = atoms[XEMBED_EMBEDDED_NOTIFY];
|
||
ev->data.data32[2] = output->bar;
|
||
ev->data.data32[3] = xe_version;
|
||
xcb_send_event(xcb_connection,
|
||
0,
|
||
client,
|
||
XCB_EVENT_MASK_NO_EVENT,
|
||
(char*)ev);
|
||
free(event);
|
||
|
||
/* Put the client inside the save set. Upon termination (whether
|
||
* killed or normal exit does not matter) of i3bar, these clients
|
||
* will be correctly reparented to their most closest living
|
||
* ancestor. Without this, tray icons might die when i3bar
|
||
* exits/crashes. */
|
||
xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
|
||
|
||
if (map_it) {
|
||
DLOG("Mapping dock client\n");
|
||
xcb_map_window(xcb_connection, client);
|
||
} else {
|
||
DLOG("Not mapping dock client yet\n");
|
||
}
|
||
trayclient *tc = smalloc(sizeof(trayclient));
|
||
tc->win = client;
|
||
tc->mapped = map_it;
|
||
tc->xe_version = xe_version;
|
||
TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
|
||
|
||
/* Trigger an update to copy the statusline text to the appropriate
|
||
* position */
|
||
configure_trayclients();
|
||
draw_bars();
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Handles UnmapNotify events. These events happen when a tray window unmaps
|
||
* itself. We then update our data structure
|
||
*
|
||
*/
|
||
static void handle_unmap_notify(xcb_unmap_notify_event_t* event) {
|
||
DLOG("UnmapNotify for window = %08x, event = %08x\n", event->window, event->event);
|
||
|
||
i3_output *walk;
|
||
SLIST_FOREACH(walk, outputs, slist) {
|
||
if (!walk->active)
|
||
continue;
|
||
DLOG("checking output %s\n", walk->name);
|
||
trayclient *trayclient;
|
||
TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
|
||
if (trayclient->win != event->window)
|
||
continue;
|
||
|
||
DLOG("Removing tray client with window ID %08x\n", event->window);
|
||
TAILQ_REMOVE(walk->trayclients, trayclient, tailq);
|
||
|
||
/* Trigger an update, we now have more space for the statusline */
|
||
configure_trayclients();
|
||
draw_bars();
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Handle PropertyNotify messages. Currently only the _XEMBED_INFO property is
|
||
* handled, which tells us whether a dock client should be mapped or unmapped.
|
||
*
|
||
*/
|
||
static void handle_property_notify(xcb_property_notify_event_t *event) {
|
||
DLOG("PropertyNotify\n");
|
||
if (event->atom == atoms[_XEMBED_INFO] &&
|
||
event->state == XCB_PROPERTY_NEW_VALUE) {
|
||
DLOG("xembed_info updated\n");
|
||
trayclient *trayclient = NULL, *walk;
|
||
i3_output *o_walk;
|
||
SLIST_FOREACH(o_walk, outputs, slist) {
|
||
if (!o_walk->active)
|
||
continue;
|
||
|
||
TAILQ_FOREACH(walk, o_walk->trayclients, tailq) {
|
||
if (walk->win != event->window)
|
||
continue;
|
||
trayclient = walk;
|
||
break;
|
||
}
|
||
|
||
if (trayclient)
|
||
break;
|
||
}
|
||
if (!trayclient) {
|
||
ELOG("PropertyNotify received for unknown window %08x\n",
|
||
event->window);
|
||
return;
|
||
}
|
||
xcb_get_property_cookie_t xembedc;
|
||
xembedc = xcb_get_property_unchecked(xcb_connection,
|
||
0,
|
||
trayclient->win,
|
||
atoms[_XEMBED_INFO],
|
||
XCB_GET_PROPERTY_TYPE_ANY,
|
||
0,
|
||
2 * 32);
|
||
|
||
xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
|
||
xembedc,
|
||
NULL);
|
||
if (xembedr == NULL || xembedr->length == 0)
|
||
return;
|
||
|
||
DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
|
||
uint32_t *xembed = xcb_get_property_value(xembedr);
|
||
DLOG("xembed version = %d\n", xembed[0]);
|
||
DLOG("xembed flags = %d\n", xembed[1]);
|
||
bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
|
||
DLOG("map-state now %d\n", map_it);
|
||
if (trayclient->mapped && !map_it) {
|
||
/* need to unmap the window */
|
||
xcb_unmap_window(xcb_connection, trayclient->win);
|
||
trayclient->mapped = map_it;
|
||
draw_bars();
|
||
} else if (!trayclient->mapped && map_it) {
|
||
/* need to map the window */
|
||
xcb_map_window(xcb_connection, trayclient->win);
|
||
trayclient->mapped = map_it;
|
||
draw_bars();
|
||
}
|
||
free(xembedr);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Handle ConfigureRequests by denying them and sending the client a
|
||
* ConfigureNotify with its actual size.
|
||
*
|
||
*/
|
||
static void handle_configure_request(xcb_configure_request_event_t *event) {
|
||
DLOG("ConfigureRequest for window = %08x\n", event->window);
|
||
|
||
trayclient *trayclient;
|
||
i3_output *output;
|
||
SLIST_FOREACH(output, outputs, slist) {
|
||
if (!output->active)
|
||
continue;
|
||
|
||
int clients = 0;
|
||
TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
|
||
clients++;
|
||
|
||
if (trayclient->win != event->window)
|
||
continue;
|
||
|
||
xcb_rectangle_t rect;
|
||
rect.x = output->rect.w - (clients * (font_height + 2));
|
||
rect.y = 2;
|
||
rect.width = font_height;
|
||
rect.height = font_height;
|
||
|
||
DLOG("This is a tray window. x = %d\n", rect.x);
|
||
fake_configure_notify(xcb_connection, rect, event->window, 0);
|
||
return;
|
||
}
|
||
}
|
||
|
||
DLOG("WARNING: Could not find corresponding tray window.\n");
|
||
}
|
||
|
||
/*
|
||
* This function is called immediately before the main loop locks. We flush xcb
|
||
* then (and only then)
|
||
*
|
||
*/
|
||
void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
|
||
xcb_flush(xcb_connection);
|
||
}
|
||
|
||
/*
|
||
* This function is called immediately after the main loop locks, so when one
|
||
* of the watchers registered an event.
|
||
* We check whether an X-Event arrived and handle it.
|
||
*
|
||
*/
|
||
void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
|
||
xcb_generic_event_t *event;
|
||
|
||
if (xcb_connection_has_error(xcb_connection)) {
|
||
ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
|
||
exit(1);
|
||
}
|
||
|
||
while ((event = xcb_poll_for_event(xcb_connection)) == NULL) {
|
||
return;
|
||
}
|
||
|
||
switch (event->response_type & ~0x80) {
|
||
case XCB_EXPOSE:
|
||
/* Expose-events happen, when the window needs to be redrawn */
|
||
redraw_bars();
|
||
break;
|
||
case XCB_BUTTON_PRESS:
|
||
/* Button-press-events are mouse-buttons clicked on one of our bars */
|
||
handle_button((xcb_button_press_event_t*) event);
|
||
break;
|
||
case XCB_CLIENT_MESSAGE:
|
||
/* Client messages are used for client-to-client communication, for
|
||
* example system tray widgets talk to us directly via client messages. */
|
||
handle_client_message((xcb_client_message_event_t*) event);
|
||
break;
|
||
case XCB_UNMAP_NOTIFY:
|
||
/* UnmapNotifies are received when a tray window unmaps itself */
|
||
handle_unmap_notify((xcb_unmap_notify_event_t*) event);
|
||
break;
|
||
case XCB_PROPERTY_NOTIFY:
|
||
/* PropertyNotify */
|
||
handle_property_notify((xcb_property_notify_event_t*) event);
|
||
break;
|
||
case XCB_CONFIGURE_REQUEST:
|
||
/* ConfigureRequest, sent by a tray child */
|
||
handle_configure_request((xcb_configure_request_event_t*) event);
|
||
break;
|
||
}
|
||
FREE(event);
|
||
}
|
||
|
||
/*
|
||
* Dummy Callback. We only need this, so that the Prepare- and Check-Watchers
|
||
* are triggered
|
||
*
|
||
*/
|
||
void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
|
||
}
|
||
|
||
/*
|
||
* We need to bind to the modifier per XKB. Sadly, XCB does not implement this
|
||
*
|
||
*/
|
||
void xkb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
|
||
XkbEvent ev;
|
||
int modstate = 0;
|
||
|
||
DLOG("Got XKB-Event!\n");
|
||
|
||
while (XPending(xkb_dpy)) {
|
||
XNextEvent(xkb_dpy, (XEvent*)&ev);
|
||
|
||
if (ev.type != xkb_event_base) {
|
||
ELOG("No Xkb-Event!\n");
|
||
continue;
|
||
}
|
||
|
||
if (ev.any.xkb_type != XkbStateNotify) {
|
||
ELOG("No State Notify!\n");
|
||
continue;
|
||
}
|
||
|
||
unsigned int mods = ev.state.mods;
|
||
modstate = mods & Mod4Mask;
|
||
}
|
||
|
||
if (modstate != mod_pressed) {
|
||
if (modstate == 0) {
|
||
DLOG("Mod4 got released!\n");
|
||
hide_bars();
|
||
} else {
|
||
DLOG("Mod4 got pressed!\n");
|
||
unhide_bars();
|
||
}
|
||
mod_pressed = modstate;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Early initialization of the connection to X11: Everything which does not
|
||
* depend on 'config'.
|
||
*
|
||
*/
|
||
char *init_xcb_early() {
|
||
/* FIXME: xcb_connect leaks Memory */
|
||
xcb_connection = xcb_connect(NULL, &screen);
|
||
if (xcb_connection_has_error(xcb_connection)) {
|
||
ELOG("Cannot open display\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
DLOG("Connected to xcb\n");
|
||
|
||
/* We have to request the atoms we need */
|
||
#define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
|
||
#include "xcb_atoms.def"
|
||
|
||
xcb_screen = xcb_setup_roots_iterator(xcb_get_setup(xcb_connection)).data;
|
||
xcb_root = xcb_screen->root;
|
||
|
||
/* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
|
||
* this way, we can choose to crop it */
|
||
uint32_t mask = XCB_GC_FOREGROUND;
|
||
uint32_t vals[] = { colors.bar_bg, colors.bar_bg };
|
||
|
||
statusline_clear = xcb_generate_id(xcb_connection);
|
||
xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
|
||
statusline_clear,
|
||
xcb_root,
|
||
mask,
|
||
vals);
|
||
|
||
mask |= XCB_GC_BACKGROUND;
|
||
vals[0] = colors.bar_fg;
|
||
statusline_ctx = xcb_generate_id(xcb_connection);
|
||
xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
|
||
statusline_ctx,
|
||
xcb_root,
|
||
mask,
|
||
vals);
|
||
|
||
statusline_pm = xcb_generate_id(xcb_connection);
|
||
xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
|
||
xcb_screen->root_depth,
|
||
statusline_pm,
|
||
xcb_root,
|
||
xcb_screen->width_in_pixels,
|
||
xcb_screen->height_in_pixels);
|
||
|
||
|
||
/* The various Watchers to communicate with xcb */
|
||
xcb_io = smalloc(sizeof(ev_io));
|
||
xcb_prep = smalloc(sizeof(ev_prepare));
|
||
xcb_chk = smalloc(sizeof(ev_check));
|
||
|
||
ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
|
||
ev_prepare_init(xcb_prep, &xcb_prep_cb);
|
||
ev_check_init(xcb_chk, &xcb_chk_cb);
|
||
|
||
ev_io_start(main_loop, xcb_io);
|
||
ev_prepare_start(main_loop, xcb_prep);
|
||
ev_check_start(main_loop, xcb_chk);
|
||
|
||
/* Now we get the atoms and save them in a nice data structure */
|
||
get_atoms();
|
||
|
||
xcb_get_property_cookie_t path_cookie;
|
||
path_cookie = xcb_get_property_unchecked(xcb_connection,
|
||
0,
|
||
xcb_root,
|
||
atoms[I3_SOCKET_PATH],
|
||
XCB_GET_PROPERTY_TYPE_ANY,
|
||
0, PATH_MAX);
|
||
|
||
/* We check, if i3 set its socket-path */
|
||
xcb_get_property_reply_t *path_reply = xcb_get_property_reply(xcb_connection,
|
||
path_cookie,
|
||
NULL);
|
||
char *path = NULL;
|
||
if (path_reply) {
|
||
int len = xcb_get_property_value_length(path_reply);
|
||
if (len != 0) {
|
||
path = strndup(xcb_get_property_value(path_reply), len);
|
||
}
|
||
}
|
||
|
||
|
||
if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline-buffer") ||
|
||
xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline-buffer-clearcontext") ||
|
||
xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline-buffer-context")) {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
return path;
|
||
}
|
||
|
||
/*
|
||
* Initialization which depends on 'config' being usable. Called after the
|
||
* configuration has arrived.
|
||
*
|
||
*/
|
||
void init_xcb_late(char *fontname) {
|
||
if (fontname == NULL) {
|
||
/* XXX: font fallback to 'misc' like i3 does it would be good. */
|
||
fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
|
||
}
|
||
|
||
/* We load and allocate the font */
|
||
xcb_font = xcb_generate_id(xcb_connection);
|
||
xcb_void_cookie_t open_font_cookie;
|
||
open_font_cookie = xcb_open_font_checked(xcb_connection,
|
||
xcb_font,
|
||
strlen(fontname),
|
||
fontname);
|
||
|
||
/* We need to save info about the font, because we need the font's height and
|
||
* information about the width of characters */
|
||
xcb_query_font_cookie_t query_font_cookie;
|
||
query_font_cookie = xcb_query_font(xcb_connection,
|
||
xcb_font);
|
||
|
||
xcb_change_gc(xcb_connection,
|
||
statusline_ctx,
|
||
XCB_GC_FONT,
|
||
(uint32_t[]){ xcb_font });
|
||
|
||
xcb_flush(xcb_connection);
|
||
|
||
/* To grab modifiers without blocking other applications from receiving key-events
|
||
* involving that modifier, we sadly have to use xkb which is not yet fully supported
|
||
* in xcb */
|
||
if (config.hide_on_modifier) {
|
||
int xkb_major, xkb_minor, xkb_errbase, xkb_err;
|
||
xkb_major = XkbMajorVersion;
|
||
xkb_minor = XkbMinorVersion;
|
||
|
||
xkb_dpy = XkbOpenDisplay(NULL,
|
||
&xkb_event_base,
|
||
&xkb_errbase,
|
||
&xkb_major,
|
||
&xkb_minor,
|
||
&xkb_err);
|
||
|
||
if (xkb_dpy == NULL) {
|
||
ELOG("No XKB!\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
if (fcntl(ConnectionNumber(xkb_dpy), F_SETFD, FD_CLOEXEC) == -1) {
|
||
ELOG("Could not set FD_CLOEXEC on xkbdpy: %s\n", strerror(errno));
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
int i1;
|
||
if (!XkbQueryExtension(xkb_dpy, &i1, &xkb_event_base, &xkb_errbase, &xkb_major, &xkb_minor)) {
|
||
ELOG("XKB not supported by X-server!\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
if (!XkbSelectEvents(xkb_dpy, XkbUseCoreKbd, XkbStateNotifyMask, XkbStateNotifyMask)) {
|
||
ELOG("Could not grab Key!\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
xkb_io = smalloc(sizeof(ev_io));
|
||
ev_io_init(xkb_io, &xkb_io_cb, ConnectionNumber(xkb_dpy), EV_READ);
|
||
ev_io_start(main_loop, xkb_io);
|
||
XFlush(xkb_dpy);
|
||
}
|
||
|
||
/* Now we save the font-infos */
|
||
font_info = xcb_query_font_reply(xcb_connection,
|
||
query_font_cookie,
|
||
NULL);
|
||
|
||
if (xcb_request_failed(open_font_cookie, "Could not open font")) {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
font_height = font_info->font_ascent + font_info->font_descent;
|
||
|
||
if (xcb_query_font_char_infos_length(font_info) == 0) {
|
||
font_table = NULL;
|
||
} else {
|
||
font_table = xcb_query_font_char_infos(font_info);
|
||
}
|
||
|
||
DLOG("Calculated Font-height: %d\n", font_height);
|
||
}
|
||
|
||
/*
|
||
* Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
|
||
* for the X11 display we are running on, then acquiring the selection for this
|
||
* atom. Afterwards, tray clients will send ClientMessages to our window.
|
||
*
|
||
*/
|
||
void init_tray() {
|
||
DLOG("Initializing system tray functionality\n");
|
||
/* request the tray manager atom for the X11 display we are running on */
|
||
char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
|
||
snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
|
||
xcb_intern_atom_cookie_t tray_cookie;
|
||
xcb_intern_atom_reply_t *tray_reply;
|
||
tray_cookie = xcb_intern_atom(xcb_connection, 0, strlen(atomname), atomname);
|
||
|
||
/* tray support: we need a window to own the selection */
|
||
xcb_window_t selwin = xcb_generate_id(xcb_connection);
|
||
uint32_t selmask = XCB_CW_OVERRIDE_REDIRECT;
|
||
uint32_t selval[] = { 1 };
|
||
xcb_create_window(xcb_connection,
|
||
xcb_screen->root_depth,
|
||
selwin,
|
||
xcb_root,
|
||
-1, -1,
|
||
1, 1,
|
||
1,
|
||
XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||
xcb_screen->root_visual,
|
||
selmask,
|
||
selval);
|
||
|
||
uint32_t orientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
|
||
/* set the atoms */
|
||
xcb_change_property(xcb_connection,
|
||
XCB_PROP_MODE_REPLACE,
|
||
selwin,
|
||
atoms[_NET_SYSTEM_TRAY_ORIENTATION],
|
||
XCB_ATOM_CARDINAL,
|
||
32,
|
||
1,
|
||
&orientation);
|
||
|
||
if (!(tray_reply = xcb_intern_atom_reply(xcb_connection, tray_cookie, NULL))) {
|
||
ELOG("Could not get atom %s\n", atomname);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
xcb_set_selection_owner(xcb_connection,
|
||
selwin,
|
||
tray_reply->atom,
|
||
XCB_CURRENT_TIME);
|
||
|
||
/* Verify that we have the selection */
|
||
xcb_get_selection_owner_cookie_t selcookie;
|
||
xcb_get_selection_owner_reply_t *selreply;
|
||
|
||
selcookie = xcb_get_selection_owner(xcb_connection, tray_reply->atom);
|
||
if (!(selreply = xcb_get_selection_owner_reply(xcb_connection, selcookie, NULL))) {
|
||
ELOG("Could not get selection owner for %s\n", atomname);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
if (selreply->owner != selwin) {
|
||
ELOG("Could not set the %s selection. " \
|
||
"Maybe another tray is already running?\n", atomname);
|
||
/* NOTE that this error is not fatal. We just can’t provide tray
|
||
* functionality */
|
||
free(selreply);
|
||
return;
|
||
}
|
||
|
||
/* Inform clients waiting for a new _NET_SYSTEM_TRAY that we are here */
|
||
void *event = scalloc(32);
|
||
xcb_client_message_event_t *ev = event;
|
||
ev->response_type = XCB_CLIENT_MESSAGE;
|
||
ev->window = xcb_root;
|
||
ev->type = atoms[MANAGER];
|
||
ev->format = 32;
|
||
ev->data.data32[0] = XCB_CURRENT_TIME;
|
||
ev->data.data32[1] = tray_reply->atom;
|
||
ev->data.data32[2] = selwin;
|
||
xcb_send_event(xcb_connection,
|
||
0,
|
||
xcb_root,
|
||
XCB_EVENT_MASK_STRUCTURE_NOTIFY,
|
||
(char*)ev);
|
||
free(event);
|
||
free(tray_reply);
|
||
}
|
||
|
||
/*
|
||
* Cleanup the xcb-stuff.
|
||
* Called once, before the program terminates.
|
||
*
|
||
*/
|
||
void clean_xcb() {
|
||
i3_output *o_walk;
|
||
trayclient *trayclient;
|
||
free_workspaces();
|
||
SLIST_FOREACH(o_walk, outputs, slist) {
|
||
TAILQ_FOREACH(trayclient, o_walk->trayclients, tailq) {
|
||
/* Unmap, then reparent (to root) the tray client windows */
|
||
xcb_unmap_window(xcb_connection, trayclient->win);
|
||
xcb_reparent_window(xcb_connection,
|
||
trayclient->win,
|
||
xcb_root,
|
||
0,
|
||
0);
|
||
}
|
||
destroy_window(o_walk);
|
||
FREE(o_walk->trayclients);
|
||
FREE(o_walk->workspaces);
|
||
FREE(o_walk->name);
|
||
}
|
||
FREE_SLIST(outputs, i3_output);
|
||
FREE(outputs);
|
||
|
||
xcb_flush(xcb_connection);
|
||
xcb_disconnect(xcb_connection);
|
||
|
||
ev_check_stop(main_loop, xcb_chk);
|
||
ev_prepare_stop(main_loop, xcb_prep);
|
||
ev_io_stop(main_loop, xcb_io);
|
||
|
||
FREE(xcb_chk);
|
||
FREE(xcb_prep);
|
||
FREE(xcb_io);
|
||
FREE(font_info);
|
||
}
|
||
|
||
/*
|
||
* Get the earlier requested atoms and save them in the prepared data structure
|
||
*
|
||
*/
|
||
void get_atoms() {
|
||
xcb_intern_atom_reply_t *reply;
|
||
#define ATOM_DO(name) reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
|
||
if (reply == NULL) { \
|
||
ELOG("Could not get atom %s\n", #name); \
|
||
exit(EXIT_FAILURE); \
|
||
} \
|
||
atoms[name] = reply->atom; \
|
||
free(reply);
|
||
|
||
#include "xcb_atoms.def"
|
||
DLOG("Got Atoms\n");
|
||
}
|
||
|
||
/*
|
||
* Destroy the bar of the specified output
|
||
*
|
||
*/
|
||
void destroy_window(i3_output *output) {
|
||
if (output == NULL) {
|
||
return;
|
||
}
|
||
if (output->bar == XCB_NONE) {
|
||
return;
|
||
}
|
||
xcb_destroy_window(xcb_connection, output->bar);
|
||
output->bar = XCB_NONE;
|
||
}
|
||
|
||
/*
|
||
* Reallocate the statusline-buffer
|
||
*
|
||
*/
|
||
void realloc_sl_buffer() {
|
||
DLOG("Re-allocating statusline-buffer, statusline_width = %d, xcb_screen->width_in_pixels = %d\n",
|
||
statusline_width, xcb_screen->width_in_pixels);
|
||
xcb_free_pixmap(xcb_connection, statusline_pm);
|
||
statusline_pm = xcb_generate_id(xcb_connection);
|
||
xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
|
||
xcb_screen->root_depth,
|
||
statusline_pm,
|
||
xcb_root,
|
||
MAX(xcb_screen->width_in_pixels, statusline_width),
|
||
xcb_screen->height_in_pixels);
|
||
|
||
uint32_t mask = XCB_GC_FOREGROUND;
|
||
uint32_t vals[3] = { colors.bar_bg, colors.bar_bg, xcb_font };
|
||
xcb_free_gc(xcb_connection, statusline_clear);
|
||
statusline_clear = xcb_generate_id(xcb_connection);
|
||
xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
|
||
statusline_clear,
|
||
xcb_root,
|
||
mask,
|
||
vals);
|
||
|
||
mask |= XCB_GC_BACKGROUND | XCB_GC_FONT;
|
||
vals[0] = colors.bar_fg;
|
||
statusline_ctx = xcb_generate_id(xcb_connection);
|
||
xcb_free_gc(xcb_connection, statusline_ctx);
|
||
xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
|
||
statusline_ctx,
|
||
xcb_root,
|
||
mask,
|
||
vals);
|
||
|
||
if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline-buffer") ||
|
||
xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline-buffer-clearcontext") ||
|
||
xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline-buffer-context")) {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
}
|
||
|
||
/*
|
||
* Reconfigure all bars and create new bars for recently activated outputs
|
||
*
|
||
*/
|
||
void reconfig_windows() {
|
||
uint32_t mask;
|
||
uint32_t values[5];
|
||
static bool tray_configured = false;
|
||
|
||
i3_output *walk;
|
||
SLIST_FOREACH(walk, outputs, slist) {
|
||
if (!walk->active) {
|
||
/* If an output is not active, we destroy its bar */
|
||
/* FIXME: Maybe we rather want to unmap? */
|
||
DLOG("Destroying window for output %s\n", walk->name);
|
||
destroy_window(walk);
|
||
continue;
|
||
}
|
||
if (walk->bar == XCB_NONE) {
|
||
DLOG("Creating Window for output %s\n", walk->name);
|
||
|
||
walk->bar = xcb_generate_id(xcb_connection);
|
||
walk->buffer = xcb_generate_id(xcb_connection);
|
||
mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
|
||
/* Black background */
|
||
values[0] = colors.bar_bg;
|
||
/* If hide_on_modifier is set, i3 is not supposed to manage our bar-windows */
|
||
values[1] = config.hide_on_modifier;
|
||
/* We enable the following EventMask fields:
|
||
* EXPOSURE, to get expose events (we have to re-draw then)
|
||
* SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
|
||
* child windows use ConfigureWindow
|
||
* BUTTON_PRESS, to handle clicks on the workspace buttons
|
||
* */
|
||
values[2] = XCB_EVENT_MASK_EXPOSURE |
|
||
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
|
||
if (!config.disable_ws) {
|
||
values[2] |= XCB_EVENT_MASK_BUTTON_PRESS;
|
||
}
|
||
xcb_void_cookie_t win_cookie = xcb_create_window_checked(xcb_connection,
|
||
xcb_screen->root_depth,
|
||
walk->bar,
|
||
xcb_root,
|
||
walk->rect.x, walk->rect.y + walk->rect.h - font_height - 6,
|
||
walk->rect.w, font_height + 6,
|
||
1,
|
||
XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||
xcb_screen->root_visual,
|
||
mask,
|
||
values);
|
||
|
||
/* The double-buffer we use to render stuff off-screen */
|
||
xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
|
||
xcb_screen->root_depth,
|
||
walk->buffer,
|
||
walk->bar,
|
||
walk->rect.w,
|
||
walk->rect.h);
|
||
|
||
/* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
|
||
xcb_void_cookie_t class_cookie;
|
||
class_cookie = xcb_change_property(xcb_connection,
|
||
XCB_PROP_MODE_REPLACE,
|
||
walk->bar,
|
||
XCB_ATOM_WM_CLASS,
|
||
XCB_ATOM_STRING,
|
||
8,
|
||
(strlen("i3bar") + 1) * 2,
|
||
"i3bar\0i3bar\0");
|
||
|
||
char *name;
|
||
if (asprintf(&name, "i3bar for output %s", walk->name) == -1)
|
||
err(EXIT_FAILURE, "asprintf()");
|
||
xcb_void_cookie_t name_cookie;
|
||
name_cookie = xcb_change_property(xcb_connection,
|
||
XCB_PROP_MODE_REPLACE,
|
||
walk->bar,
|
||
XCB_ATOM_WM_NAME,
|
||
XCB_ATOM_STRING,
|
||
8,
|
||
strlen(name),
|
||
name);
|
||
free(name);
|
||
|
||
/* We want dock-windows (for now). When override_redirect is set, i3 is ignoring
|
||
* this one */
|
||
xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
|
||
XCB_PROP_MODE_REPLACE,
|
||
walk->bar,
|
||
atoms[_NET_WM_WINDOW_TYPE],
|
||
XCB_ATOM_ATOM,
|
||
32,
|
||
1,
|
||
(unsigned char*) &atoms[_NET_WM_WINDOW_TYPE_DOCK]);
|
||
|
||
/* We need to tell i3, where to reserve space for i3bar */
|
||
/* left, right, top, bottom, left_start_y, left_end_y,
|
||
* right_start_y, right_end_y, top_start_x, top_end_x, bottom_start_x,
|
||
* bottom_end_x */
|
||
/* A local struct to save the strut_partial property */
|
||
struct {
|
||
uint32_t left;
|
||
uint32_t right;
|
||
uint32_t top;
|
||
uint32_t bottom;
|
||
uint32_t left_start_y;
|
||
uint32_t left_end_y;
|
||
uint32_t right_start_y;
|
||
uint32_t right_end_y;
|
||
uint32_t top_start_x;
|
||
uint32_t top_end_x;
|
||
uint32_t bottom_start_x;
|
||
uint32_t bottom_end_x;
|
||
} __attribute__((__packed__)) strut_partial = {0,};
|
||
switch (config.position) {
|
||
case POS_NONE:
|
||
break;
|
||
case POS_TOP:
|
||
strut_partial.top = font_height + 6;
|
||
strut_partial.top_start_x = walk->rect.x;
|
||
strut_partial.top_end_x = walk->rect.x + walk->rect.w;
|
||
break;
|
||
case POS_BOT:
|
||
strut_partial.bottom = font_height + 6;
|
||
strut_partial.bottom_start_x = walk->rect.x;
|
||
strut_partial.bottom_end_x = walk->rect.x + walk->rect.w;
|
||
break;
|
||
}
|
||
xcb_void_cookie_t strut_cookie = xcb_change_property(xcb_connection,
|
||
XCB_PROP_MODE_REPLACE,
|
||
walk->bar,
|
||
atoms[_NET_WM_STRUT_PARTIAL],
|
||
XCB_ATOM_CARDINAL,
|
||
32,
|
||
12,
|
||
&strut_partial);
|
||
|
||
/* We also want a graphics-context for the bars (it defines the properties
|
||
* with which we draw to them) */
|
||
walk->bargc = xcb_generate_id(xcb_connection);
|
||
mask = XCB_GC_FONT;
|
||
values[0] = xcb_font;
|
||
xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(xcb_connection,
|
||
walk->bargc,
|
||
walk->bar,
|
||
mask,
|
||
values);
|
||
|
||
/* We finally map the bar (display it on screen), unless the modifier-switch is on */
|
||
xcb_void_cookie_t map_cookie;
|
||
if (!config.hide_on_modifier) {
|
||
map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
|
||
}
|
||
|
||
if (xcb_request_failed(win_cookie, "Could not create window") ||
|
||
xcb_request_failed(pm_cookie, "Could not create pixmap") ||
|
||
xcb_request_failed(dock_cookie, "Could not set dock mode") ||
|
||
xcb_request_failed(class_cookie, "Could not set WM_CLASS") ||
|
||
xcb_request_failed(name_cookie, "Could not set WM_NAME") ||
|
||
xcb_request_failed(strut_cookie, "Could not set strut") ||
|
||
xcb_request_failed(gc_cookie, "Could not create graphical context") ||
|
||
(!config.hide_on_modifier && xcb_request_failed(map_cookie, "Could not map window"))) {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
if (!tray_configured &&
|
||
(!config.tray_output ||
|
||
strcasecmp("none", config.tray_output) != 0)) {
|
||
init_tray();
|
||
tray_configured = true;
|
||
}
|
||
} else {
|
||
/* We already have a bar, so we just reconfigure it */
|
||
mask = XCB_CONFIG_WINDOW_X |
|
||
XCB_CONFIG_WINDOW_Y |
|
||
XCB_CONFIG_WINDOW_WIDTH |
|
||
XCB_CONFIG_WINDOW_HEIGHT |
|
||
XCB_CONFIG_WINDOW_STACK_MODE;
|
||
values[0] = walk->rect.x;
|
||
values[1] = walk->rect.y + walk->rect.h - font_height - 6;
|
||
values[2] = walk->rect.w;
|
||
values[3] = font_height + 6;
|
||
values[4] = XCB_STACK_MODE_ABOVE;
|
||
|
||
DLOG("Destroying buffer for output %s", walk->name);
|
||
xcb_free_pixmap(xcb_connection, walk->buffer);
|
||
|
||
DLOG("Reconfiguring Window for output %s to %d,%d\n", walk->name, values[0], values[1]);
|
||
xcb_void_cookie_t cfg_cookie = xcb_configure_window_checked(xcb_connection,
|
||
walk->bar,
|
||
mask,
|
||
values);
|
||
|
||
DLOG("Recreating buffer for output %s", walk->name);
|
||
xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
|
||
xcb_screen->root_depth,
|
||
walk->buffer,
|
||
walk->bar,
|
||
walk->rect.w,
|
||
walk->rect.h);
|
||
|
||
if (xcb_request_failed(cfg_cookie, "Could not reconfigure window")) {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
if (xcb_request_failed(pm_cookie, "Could not create pixmap")) {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Render the bars, with buttons and statusline
|
||
*
|
||
*/
|
||
void draw_bars() {
|
||
DLOG("Drawing Bars...\n");
|
||
int i = 0;
|
||
|
||
refresh_statusline();
|
||
|
||
i3_output *outputs_walk;
|
||
SLIST_FOREACH(outputs_walk, outputs, slist) {
|
||
if (!outputs_walk->active) {
|
||
DLOG("Output %s inactive, skipping...\n", outputs_walk->name);
|
||
continue;
|
||
}
|
||
if (outputs_walk->bar == XCB_NONE) {
|
||
/* Oh shit, an active output without an own bar. Create it now! */
|
||
reconfig_windows();
|
||
}
|
||
/* First things first: clear the backbuffer */
|
||
uint32_t color = colors.bar_bg;
|
||
xcb_change_gc(xcb_connection,
|
||
outputs_walk->bargc,
|
||
XCB_GC_FOREGROUND,
|
||
&color);
|
||
xcb_rectangle_t rect = { 0, 0, outputs_walk->rect.w, font_height + 6 };
|
||
xcb_poly_fill_rectangle(xcb_connection,
|
||
outputs_walk->buffer,
|
||
outputs_walk->bargc,
|
||
1,
|
||
&rect);
|
||
|
||
if (statusline != NULL) {
|
||
DLOG("Printing statusline!\n");
|
||
|
||
/* Luckily we already prepared a seperate pixmap containing the rendered
|
||
* statusline, we just have to copy the relevant parts to the relevant
|
||
* position */
|
||
trayclient *trayclient;
|
||
int traypx = 0;
|
||
TAILQ_FOREACH(trayclient, outputs_walk->trayclients, tailq) {
|
||
if (!trayclient->mapped)
|
||
continue;
|
||
/* We assume the tray icons are quadratic (we use the font
|
||
* *height* as *width* of the icons) because we configured them
|
||
* like this. */
|
||
traypx += font_height + 2;
|
||
}
|
||
/* Add 2px of padding if there are any tray icons */
|
||
if (traypx > 0)
|
||
traypx += 2;
|
||
xcb_copy_area(xcb_connection,
|
||
statusline_pm,
|
||
outputs_walk->buffer,
|
||
outputs_walk->bargc,
|
||
MAX(0, (int16_t)(statusline_width - outputs_walk->rect.w + 4)), 0,
|
||
MAX(0, (int16_t)(outputs_walk->rect.w - statusline_width - traypx - 4)), 3,
|
||
MIN(outputs_walk->rect.w - traypx - 4, statusline_width), font_height);
|
||
}
|
||
|
||
if (config.disable_ws) {
|
||
continue;
|
||
}
|
||
|
||
i3_ws *ws_walk;
|
||
TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
|
||
DLOG("Drawing Button for WS %s at x = %d\n", ws_walk->name, i);
|
||
uint32_t fg_color = colors.inactive_ws_fg;
|
||
uint32_t bg_color = colors.inactive_ws_bg;
|
||
if (ws_walk->visible) {
|
||
if (!ws_walk->focused) {
|
||
fg_color = colors.active_ws_fg;
|
||
bg_color = colors.active_ws_bg;
|
||
} else {
|
||
fg_color = colors.focus_ws_fg;
|
||
bg_color = colors.focus_ws_bg;
|
||
}
|
||
}
|
||
if (ws_walk->urgent) {
|
||
DLOG("WS %s is urgent!\n", ws_walk->name);
|
||
fg_color = colors.urgent_ws_fg;
|
||
bg_color = colors.urgent_ws_bg;
|
||
/* The urgent-hint should get noticed, so we unhide the bars shortly */
|
||
unhide_bars();
|
||
}
|
||
uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
|
||
uint32_t vals[] = { bg_color, bg_color };
|
||
xcb_change_gc(xcb_connection,
|
||
outputs_walk->bargc,
|
||
mask,
|
||
vals);
|
||
xcb_rectangle_t rect = { i + 1, 1, ws_walk->name_width + 8, font_height + 4 };
|
||
xcb_poly_fill_rectangle(xcb_connection,
|
||
outputs_walk->buffer,
|
||
outputs_walk->bargc,
|
||
1,
|
||
&rect);
|
||
xcb_change_gc(xcb_connection,
|
||
outputs_walk->bargc,
|
||
XCB_GC_FOREGROUND,
|
||
&fg_color);
|
||
xcb_image_text_16(xcb_connection,
|
||
ws_walk->name_glyphs,
|
||
outputs_walk->buffer,
|
||
outputs_walk->bargc,
|
||
i + 5, font_info->font_ascent + 2,
|
||
ws_walk->ucs2_name);
|
||
i += 10 + ws_walk->name_width;
|
||
}
|
||
|
||
i = 0;
|
||
}
|
||
|
||
redraw_bars();
|
||
}
|
||
|
||
/*
|
||
* Redraw the bars, i.e. simply copy the buffer to the barwindow
|
||
*
|
||
*/
|
||
void redraw_bars() {
|
||
i3_output *outputs_walk;
|
||
SLIST_FOREACH(outputs_walk, outputs, slist) {
|
||
if (!outputs_walk->active) {
|
||
continue;
|
||
}
|
||
xcb_copy_area(xcb_connection,
|
||
outputs_walk->buffer,
|
||
outputs_walk->bar,
|
||
outputs_walk->bargc,
|
||
0, 0,
|
||
0, 0,
|
||
outputs_walk->rect.w,
|
||
outputs_walk->rect.h);
|
||
xcb_flush(xcb_connection);
|
||
}
|
||
}
|