rofi/source/xcb.c

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/*
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* rofi
*
* MIT/X11 License
* Copyright © 2012 Sean Pringle <sean.pringle@gmail.com>
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* Copyright © 2013-2022 Qball Cow <qball@gmpclient.org>
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*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
/** Log domain for this module */
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#define G_LOG_DOMAIN "X11Helper"
#include "config.h"
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#include <cairo-xcb.h>
#include <cairo.h>
#include <glib.h>
#include <math.h>
#include <stdint.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
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#include <xcb/randr.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <xcb/xcb_cursor.h>
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#include <xcb/xcb_ewmh.h>
#include <xcb/xinerama.h>
#include <xcb/xkb.h>
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#include <xcb/xproto.h>
#include <xkbcommon/xkbcommon-x11.h>
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#include <xkbcommon/xkbcommon.h>
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/** Indicate that we know the startup notification api is not yet stable. */
#define SN_API_NOT_YET_FROZEN
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/** This function is declared as sn_launcher_context_set_application_id but
* implemented as sn_launcher_set_application_id. Quick Fix. */
#define sn_launcher_context_set_application_id sn_launcher_set_application_id
#include "display.h"
#include "helper.h"
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#include "rofi-types.h"
#include "settings.h"
#include "timings.h"
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#include "xcb-internal.h"
#include "xcb.h"
#include <libsn/sn.h>
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#include "mode.h"
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#include "modes/window.h"
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#include <rofi.h>
/** Minimal randr preferred for running rofi (1.5) (Major version number) */
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#define RANDR_PREF_MAJOR_VERSION 1
/** Minimal randr preferred for running rofi (1.5) (Minor version number) */
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#define RANDR_PREF_MINOR_VERSION 5
/** Checks if the if x and y is inside rectangle. */
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#define INTERSECT(x, y, x1, y1, w1, h1) \
((((x) >= (x1)) && ((x) < (x1 + w1))) && (((y) >= (y1)) && ((y) < (y1 + h1))))
WindowManagerQuirk current_window_manager = WM_EWHM;
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/**
* Structure holding xcb objects needed to function.
*/
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struct _xcb_stuff xcb_int = {.connection = NULL,
.screen = NULL,
.screen_nbr = -1,
.sndisplay = NULL,
.sncontext = NULL,
.monitors = NULL,
.clipboard = NULL};
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xcb_stuff *xcb = &xcb_int;
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/**
* Depth of root window.
*/
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xcb_depth_t *depth = NULL;
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xcb_visualtype_t *visual = NULL;
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xcb_colormap_t map = XCB_COLORMAP_NONE;
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/**
* Visual of the root window.
*/
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static xcb_visualtype_t *root_visual = NULL;
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xcb_atom_t netatoms[NUM_NETATOMS];
const char *netatom_names[] = {EWMH_ATOMS(ATOM_CHAR)};
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/**
* Cached X11 cursors.
*/
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xcb_cursor_t cursors[NUM_CURSORS] = {XCB_CURSOR_NONE, XCB_CURSOR_NONE,
XCB_CURSOR_NONE};
/** Mapping between theme name and system name for mouse cursor. */
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const struct {
/** Theme name */
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const char *css_name;
/** System name */
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const char *traditional_name;
} cursor_names[] = {
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{"default", "left_ptr"}, {"pointer", "hand"}, {"text", "xterm"}};
static xcb_visualtype_t *lookup_visual(xcb_screen_t *s, xcb_visualid_t visual) {
xcb_depth_iterator_t d;
d = xcb_screen_allowed_depths_iterator(s);
for (; d.rem; xcb_depth_next(&d)) {
xcb_visualtype_iterator_t v = xcb_depth_visuals_iterator(d.data);
for (; v.rem; xcb_visualtype_next(&v)) {
if (v.data->visual_id == visual) {
return v.data;
}
}
}
return 0;
}
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/* This blur function was originally created my MacSlow and published on his
* website: http://macslow.thepimp.net. I'm not entirely sure he's proud of it,
* but it has proved immeasurably useful for me. */
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static uint32_t *create_kernel(double radius, double deviation,
uint32_t *sum2) {
int size = 2 * (int)(radius) + 1;
uint32_t *kernel = (uint32_t *)(g_malloc(sizeof(uint32_t) * (size + 1)));
double radiusf = fabs(radius) + 1.0;
double value = -radius;
double sum = 0.0;
int i;
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if (deviation == 0.0) {
deviation = sqrt(-(radiusf * radiusf) / (2.0 * log(1.0 / 255.0)));
}
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kernel[0] = size;
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for (i = 0; i < size; i++) {
kernel[1 + i] = INT16_MAX / (2.506628275 * deviation) *
exp(-((value * value) / (2.0 * (deviation * deviation))));
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sum += kernel[1 + i];
value += 1.0;
}
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*sum2 = sum;
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return kernel;
}
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void cairo_image_surface_blur(cairo_surface_t *surface, double radius,
double deviation) {
uint32_t *horzBlur;
uint32_t *kernel = 0;
cairo_format_t format;
unsigned int channels;
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if (cairo_surface_status(surface)) {
return;
}
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uint8_t *data = cairo_image_surface_get_data(surface);
format = cairo_image_surface_get_format(surface);
const int width = cairo_image_surface_get_width(surface);
const int height = cairo_image_surface_get_height(surface);
const int stride = cairo_image_surface_get_stride(surface);
if (format == CAIRO_FORMAT_ARGB32) {
channels = 4;
} else {
return;
}
horzBlur = (uint32_t *)(g_malloc(sizeof(uint32_t) * height * stride));
TICK();
uint32_t sum = 0;
kernel = create_kernel(radius, deviation, &sum);
TICK_N("BLUR: kernel");
/* Horizontal pass. */
uint32_t *horzBlur_ptr = horzBlur;
for (int iY = 0; iY < height; iY++) {
const int iYs = iY * stride;
for (int iX = 0; iX < width; iX++) {
uint32_t red = 0;
uint32_t green = 0;
uint32_t blue = 0;
uint32_t alpha = 0;
int offset = (int)(kernel[0]) / -2;
for (int i = 0; i < (int)(kernel[0]); i++) {
int x = iX + offset;
if (x < 0 || x >= width) {
offset++;
continue;
}
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uint8_t *dataPtr = &data[iYs + x * channels];
const uint32_t kernip1 = kernel[i + 1];
blue += kernip1 * dataPtr[0];
green += kernip1 * dataPtr[1];
red += kernip1 * dataPtr[2];
alpha += kernip1 * dataPtr[3];
offset++;
}
*horzBlur_ptr++ = blue / sum;
*horzBlur_ptr++ = green / sum;
*horzBlur_ptr++ = red / sum;
*horzBlur_ptr++ = alpha / sum;
}
}
TICK_N("BLUR: hori");
/* Vertical pass. */
for (int iY = 0; iY < height; iY++) {
for (int iX = 0; iX < width; iX++) {
uint32_t red = 0;
uint32_t green = 0;
uint32_t blue = 0;
uint32_t alpha = 0;
int offset = (int)(kernel[0]) / -2;
const int iXs = iX * channels;
for (int i = 0; i < (int)(kernel[0]); i++) {
int y = iY + offset;
if (y < 0 || y >= height) {
offset++;
continue;
}
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uint32_t *dataPtr = &horzBlur[y * stride + iXs];
const uint32_t kernip1 = kernel[i + 1];
blue += kernip1 * dataPtr[0];
green += kernip1 * dataPtr[1];
red += kernip1 * dataPtr[2];
alpha += kernip1 * dataPtr[3];
offset++;
}
*data++ = blue / sum;
*data++ = green / sum;
*data++ = red / sum;
*data++ = alpha / sum;
}
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}
TICK_N("BLUR: vert");
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free(kernel);
free(horzBlur);
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return;
}
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cairo_surface_t *x11_helper_get_screenshot_surface_window(xcb_window_t window,
int size) {
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
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cookie = xcb_get_geometry(xcb->connection, window);
reply = xcb_get_geometry_reply(xcb->connection, cookie, NULL);
if (reply == NULL) {
return NULL;
}
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xcb_get_window_attributes_cookie_t attributesCookie =
xcb_get_window_attributes(xcb->connection, window);
xcb_get_window_attributes_reply_t *attributes =
xcb_get_window_attributes_reply(xcb->connection, attributesCookie, NULL);
if (attributes == NULL || (attributes->map_state != XCB_MAP_STATE_VIEWABLE)) {
free(reply);
if (attributes) {
free(attributes);
}
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return NULL;
}
// Create a cairo surface for the window.
xcb_visualtype_t *vt = lookup_visual(xcb->screen, attributes->visual);
free(attributes);
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cairo_surface_t *t = cairo_xcb_surface_create(xcb->connection, window, vt,
reply->width, reply->height);
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if (cairo_surface_status(t) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(t);
free(reply);
return NULL;
}
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// Scale the image, as we don't want to keep large one around.
int max = MAX(reply->width, reply->height);
double scale = (double)size / max;
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cairo_surface_t *s2 = cairo_surface_create_similar_image(
t, CAIRO_FORMAT_ARGB32, reply->width * scale, reply->height * scale);
free(reply);
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if (cairo_surface_status(s2) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(t);
return NULL;
}
// Paint it in.
cairo_t *d = cairo_create(s2);
cairo_scale(d, scale, scale);
cairo_set_source_surface(d, t, 0, 0);
cairo_paint(d);
cairo_destroy(d);
cairo_surface_destroy(t);
return s2;
}
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/**
* Holds for each supported modifier the possible modifier mask.
* Check x11_mod_masks[MODIFIER]&mask != 0 to see if MODIFIER is activated.
*/
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cairo_surface_t *x11_helper_get_screenshot_surface(void) {
return cairo_xcb_surface_create(xcb->connection, xcb_stuff_get_root_window(),
root_visual, xcb->screen->width_in_pixels,
xcb->screen->height_in_pixels);
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}
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static xcb_pixmap_t get_root_pixmap(xcb_connection_t *c, xcb_screen_t *screen,
xcb_atom_t atom) {
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t *reply;
xcb_pixmap_t rootpixmap = XCB_NONE;
cookie = xcb_get_property(c, 0, screen->root, atom, XCB_ATOM_PIXMAP, 0, 1);
reply = xcb_get_property_reply(c, cookie, NULL);
if (reply) {
if (xcb_get_property_value_length(reply) == sizeof(xcb_pixmap_t)) {
memcpy(&rootpixmap, xcb_get_property_value(reply), sizeof(xcb_pixmap_t));
}
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free(reply);
}
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return rootpixmap;
}
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cairo_surface_t *x11_helper_get_bg_surface(void) {
xcb_pixmap_t pm =
get_root_pixmap(xcb->connection, xcb->screen, netatoms[ESETROOT_PMAP_ID]);
if (pm == XCB_NONE) {
return NULL;
}
return cairo_xcb_surface_create(xcb->connection, pm, root_visual,
xcb->screen->width_in_pixels,
xcb->screen->height_in_pixels);
}
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// retrieve a text property from a window
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// technically we could use window_get_prop(), but this is better for character
// set support
char *window_get_text_prop(xcb_window_t w, xcb_atom_t atom) {
xcb_get_property_cookie_t c = xcb_get_property(
xcb->connection, 0, w, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX);
xcb_get_property_reply_t *r =
xcb_get_property_reply(xcb->connection, c, NULL);
if (r) {
if (xcb_get_property_value_length(r) > 0) {
char *str = NULL;
if (r->type == netatoms[UTF8_STRING]) {
str = g_strndup(xcb_get_property_value(r),
xcb_get_property_value_length(r));
} else if (r->type == netatoms[STRING]) {
str = rofi_latin_to_utf8_strdup(xcb_get_property_value(r),
xcb_get_property_value_length(r));
} else {
str = g_strdup("Invalid encoding.");
}
free(r);
return str;
}
free(r);
}
return NULL;
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}
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void window_set_atom_prop(xcb_window_t w, xcb_atom_t prop, xcb_atom_t *atoms,
int count) {
xcb_change_property(xcb->connection, XCB_PROP_MODE_REPLACE, w, prop,
XCB_ATOM_ATOM, 32, count, atoms);
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}
/****
* Code used to get monitor layout.
*/
/**
* Free monitor structure.
*/
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static void x11_monitor_free(workarea *m) {
g_free(m->name);
g_free(m);
}
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static void x11_monitors_free(void) {
while (xcb->monitors != NULL) {
workarea *m = xcb->monitors;
xcb->monitors = m->next;
x11_monitor_free(m);
}
}
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/**
* Quick function that tries to fix the size (for dpi calculation)
* when monitor is rotate. This assumes the density is kinda equal in both X/Y
* direction.
*/
static void x11_workarea_fix_rotation(workarea *w) {
double ratio_res = w->w / (double)w->h;
double ratio_size = w->mw / (double)w->mh;
if ((ratio_res < 1.0 && ratio_size > 1.0) ||
(ratio_res > 1.0 && ratio_size < 1.0)) {
// Oposite ratios, swap them.
int nh = w->mw;
w->mw = w->mh;
w->mh = nh;
}
}
/**
* Create monitor based on output id
*/
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static workarea *x11_get_monitor_from_output(xcb_randr_output_t out) {
xcb_randr_get_output_info_reply_t *op_reply;
xcb_randr_get_crtc_info_reply_t *crtc_reply;
xcb_randr_get_output_info_cookie_t it =
xcb_randr_get_output_info(xcb->connection, out, XCB_CURRENT_TIME);
op_reply = xcb_randr_get_output_info_reply(xcb->connection, it, NULL);
if (op_reply->crtc == XCB_NONE) {
free(op_reply);
return NULL;
}
xcb_randr_get_crtc_info_cookie_t ct = xcb_randr_get_crtc_info(
xcb->connection, op_reply->crtc, XCB_CURRENT_TIME);
crtc_reply = xcb_randr_get_crtc_info_reply(xcb->connection, ct, NULL);
if (!crtc_reply) {
free(op_reply);
return NULL;
}
workarea *retv = g_malloc0(sizeof(workarea));
retv->x = crtc_reply->x;
retv->y = crtc_reply->y;
retv->w = crtc_reply->width;
retv->h = crtc_reply->height;
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retv->mw = op_reply->mm_width;
retv->mh = op_reply->mm_height;
x11_workarea_fix_rotation(retv);
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char *tname = (char *)xcb_randr_get_output_info_name(op_reply);
int tname_len = xcb_randr_get_output_info_name_length(op_reply);
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retv->name = g_malloc0((tname_len + 1) * sizeof(char));
memcpy(retv->name, tname, tname_len);
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free(crtc_reply);
free(op_reply);
return retv;
}
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#if (((XCB_RANDR_MAJOR_VERSION >= RANDR_PREF_MAJOR_VERSION) && \
(XCB_RANDR_MINOR_VERSION >= RANDR_PREF_MINOR_VERSION)) || \
XCB_RANDR_MAJOR_VERSION > RANDR_PREF_MAJOR_VERSION)
/**
* @param mon The randr monitor to parse.
*
* Create monitor based on xrandr monitor id.
*
* @returns A workarea representing the monitor mon
*/
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static workarea *
x11_get_monitor_from_randr_monitor(xcb_randr_monitor_info_t *mon) {
// Query to the name of the monitor.
xcb_generic_error_t *err;
xcb_get_atom_name_cookie_t anc =
xcb_get_atom_name(xcb->connection, mon->name);
xcb_get_atom_name_reply_t *atom_reply =
xcb_get_atom_name_reply(xcb->connection, anc, &err);
if (err != NULL) {
g_warning("Could not get RandR monitor name: X11 error code %d\n",
err->error_code);
free(err);
return NULL;
}
workarea *retv = g_malloc0(sizeof(workarea));
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// Is primary monitor.
retv->primary = mon->primary;
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// Position and size.
retv->x = mon->x;
retv->y = mon->y;
retv->w = mon->width;
retv->h = mon->height;
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// Physical
retv->mw = mon->width_in_millimeters;
retv->mh = mon->height_in_millimeters;
x11_workarea_fix_rotation(retv);
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// Name
retv->name =
g_strdup_printf("%.*s", xcb_get_atom_name_name_length(atom_reply),
xcb_get_atom_name_name(atom_reply));
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// Free name atom.
free(atom_reply);
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return retv;
}
#endif
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static int x11_is_extension_present(const char *extension) {
xcb_query_extension_cookie_t randr_cookie =
xcb_query_extension(xcb->connection, strlen(extension), extension);
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xcb_query_extension_reply_t *randr_reply =
xcb_query_extension_reply(xcb->connection, randr_cookie, NULL);
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int present = randr_reply->present;
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free(randr_reply);
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return present;
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}
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static void x11_build_monitor_layout_xinerama() {
xcb_xinerama_query_screens_cookie_t screens_cookie =
xcb_xinerama_query_screens_unchecked(xcb->connection);
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xcb_xinerama_query_screens_reply_t *screens_reply =
xcb_xinerama_query_screens_reply(xcb->connection, screens_cookie, NULL);
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xcb_xinerama_screen_info_iterator_t screens_iterator =
xcb_xinerama_query_screens_screen_info_iterator(screens_reply);
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for (; screens_iterator.rem > 0;
xcb_xinerama_screen_info_next(&screens_iterator)) {
workarea *w = g_malloc0(sizeof(workarea));
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w->x = screens_iterator.data->x_org;
w->y = screens_iterator.data->y_org;
w->w = screens_iterator.data->width;
w->h = screens_iterator.data->height;
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w->next = xcb->monitors;
xcb->monitors = w;
}
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int index = 0;
for (workarea *iter = xcb->monitors; iter; iter = iter->next) {
iter->monitor_id = index++;
}
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free(screens_reply);
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}
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static void x11_build_monitor_layout() {
if (xcb->monitors) {
return;
}
// If RANDR is not available, try Xinerama
if (!x11_is_extension_present("RANDR")) {
// Check if xinerama is available.
if (x11_is_extension_present("XINERAMA")) {
g_debug("Query XINERAMA for monitor layout.");
x11_build_monitor_layout_xinerama();
return;
}
g_debug("No RANDR or Xinerama available for getting monitor layout.");
return;
}
g_debug("Query RANDR for monitor layout.");
g_debug("Randr XCB api version: %d.%d.", XCB_RANDR_MAJOR_VERSION,
XCB_RANDR_MINOR_VERSION);
#if (((XCB_RANDR_MAJOR_VERSION == RANDR_PREF_MAJOR_VERSION) && \
(XCB_RANDR_MINOR_VERSION >= RANDR_PREF_MINOR_VERSION)) || \
XCB_RANDR_MAJOR_VERSION > RANDR_PREF_MAJOR_VERSION)
xcb_randr_query_version_cookie_t cversion = xcb_randr_query_version(
xcb->connection, RANDR_PREF_MAJOR_VERSION, RANDR_PREF_MINOR_VERSION);
xcb_randr_query_version_reply_t *rversion =
xcb_randr_query_version_reply(xcb->connection, cversion, NULL);
if (rversion) {
g_debug("Found randr version: %d.%d", rversion->major_version,
rversion->minor_version);
// Check if we are 1.5 and up.
if (((rversion->major_version == RANDR_PREF_MAJOR_VERSION) &&
(rversion->minor_version >= RANDR_PREF_MINOR_VERSION)) ||
(rversion->major_version > RANDR_PREF_MAJOR_VERSION)) {
xcb_randr_get_monitors_cookie_t t =
xcb_randr_get_monitors(xcb->connection, xcb->screen->root, 1);
xcb_randr_get_monitors_reply_t *mreply =
xcb_randr_get_monitors_reply(xcb->connection, t, NULL);
if (mreply) {
xcb_randr_monitor_info_iterator_t iter =
xcb_randr_get_monitors_monitors_iterator(mreply);
while (iter.rem > 0) {
workarea *w = x11_get_monitor_from_randr_monitor(iter.data);
if (w) {
w->next = xcb->monitors;
xcb->monitors = w;
}
xcb_randr_monitor_info_next(&iter);
}
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free(mreply);
}
}
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free(rversion);
}
#endif
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// If no monitors found.
if (xcb->monitors == NULL) {
xcb_randr_get_screen_resources_current_reply_t *res_reply;
xcb_randr_get_screen_resources_current_cookie_t src;
src = xcb_randr_get_screen_resources_current(xcb->connection,
xcb->screen->root);
res_reply = xcb_randr_get_screen_resources_current_reply(xcb->connection,
src, NULL);
if (!res_reply) {
return; // just report error
}
int mon_num =
xcb_randr_get_screen_resources_current_outputs_length(res_reply);
xcb_randr_output_t *ops =
xcb_randr_get_screen_resources_current_outputs(res_reply);
// Get primary.
xcb_randr_get_output_primary_cookie_t pc =
xcb_randr_get_output_primary(xcb->connection, xcb->screen->root);
xcb_randr_get_output_primary_reply_t *pc_rep =
xcb_randr_get_output_primary_reply(xcb->connection, pc, NULL);
for (int i = mon_num - 1; i >= 0; i--) {
workarea *w = x11_get_monitor_from_output(ops[i]);
if (w) {
w->next = xcb->monitors;
xcb->monitors = w;
if (pc_rep && pc_rep->output == ops[i]) {
w->primary = TRUE;
}
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}
}
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// If exists, free primary output reply.
if (pc_rep) {
free(pc_rep);
}
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free(res_reply);
}
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// Number monitor
int index = 0;
for (workarea *iter = xcb->monitors; iter; iter = iter->next) {
iter->monitor_id = index++;
}
}
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void display_dump_monitor_layout(void) {
int is_term = isatty(fileno(stdout));
printf("Monitor layout:\n");
for (workarea *iter = xcb->monitors; iter; iter = iter->next) {
printf("%s ID%s: %d", (is_term) ? color_bold : "",
is_term ? color_reset : "", iter->monitor_id);
if (iter->primary) {
printf(" (primary)");
}
printf("\n");
printf("%s name%s: %s\n", (is_term) ? color_bold : "",
is_term ? color_reset : "", iter->name);
printf("%s position%s: %d,%d\n", (is_term) ? color_bold : "",
is_term ? color_reset : "", iter->x, iter->y);
printf("%s size%s: %d,%d\n", (is_term) ? color_bold : "",
is_term ? color_reset : "", iter->w, iter->h);
if (iter->mw > 0 && iter->mh > 0) {
printf("%s size%s: %dmm,%dmm dpi: %.0f,%.0f\n",
(is_term) ? color_bold : "", is_term ? color_reset : "", iter->mw,
iter->mh, iter->w * 25.4 / (double)iter->mw,
iter->h * 25.4 / (double)iter->mh);
}
printf("\n");
}
}
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void display_startup_notification(RofiHelperExecuteContext *context,
GSpawnChildSetupFunc *child_setup,
gpointer *user_data) {
if (context == NULL) {
return;
}
SnLauncherContext *sncontext;
sncontext = sn_launcher_context_new(xcb->sndisplay, xcb->screen_nbr);
sn_launcher_context_set_name(sncontext, context->name);
sn_launcher_context_set_description(sncontext, context->description);
if (context->binary != NULL) {
sn_launcher_context_set_binary_name(sncontext, context->binary);
}
if (context->icon != NULL) {
sn_launcher_context_set_icon_name(sncontext, context->icon);
}
if (context->app_id != NULL) {
sn_launcher_context_set_application_id(sncontext, context->app_id);
}
if (context->wmclass != NULL) {
sn_launcher_context_set_wmclass(sncontext, context->wmclass);
}
xcb_get_property_cookie_t c;
unsigned int current_desktop = 0;
c = xcb_ewmh_get_current_desktop(&xcb->ewmh, xcb->screen_nbr);
if (xcb_ewmh_get_current_desktop_reply(&xcb->ewmh, c, &current_desktop,
NULL)) {
sn_launcher_context_set_workspace(sncontext, current_desktop);
}
sn_launcher_context_initiate(sncontext, "rofi", context->command,
xcb->last_timestamp);
*child_setup = (GSpawnChildSetupFunc)sn_launcher_context_setup_child_process;
*user_data = sncontext;
}
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static int monitor_get_dimension(int monitor_id, workarea *mon) {
memset(mon, 0, sizeof(workarea));
mon->w = xcb->screen->width_in_pixels;
mon->h = xcb->screen->height_in_pixels;
workarea *iter = NULL;
for (iter = xcb->monitors; iter; iter = iter->next) {
if (iter->monitor_id == monitor_id) {
*mon = *iter;
return TRUE;
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}
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}
return FALSE;
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}
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// find the dimensions of the monitor displaying point x,y
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static void monitor_dimensions(int x, int y, workarea *mon) {
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if (mon == NULL) {
g_error("%s: mon == NULL", __FUNCTION__);
return;
}
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memset(mon, 0, sizeof(workarea));
mon->w = xcb->screen->width_in_pixels;
mon->h = xcb->screen->height_in_pixels;
for (workarea *iter = xcb->monitors; iter; iter = iter->next) {
if (INTERSECT(x, y, iter->x, iter->y, iter->w, iter->h)) {
*mon = *iter;
break;
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}
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}
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}
/**
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* @param root The X11 window used to find the pointer position. Usually the
* root window.
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* @param x The x position of the mouse [out]
* @param y The y position of the mouse [out]
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*
* find mouse pointer location
*
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* @returns TRUE when found, FALSE otherwise
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*/
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static int pointer_get(xcb_window_t root, int *x, int *y) {
*x = 0;
*y = 0;
xcb_query_pointer_cookie_t c = xcb_query_pointer(xcb->connection, root);
xcb_query_pointer_reply_t *r =
xcb_query_pointer_reply(xcb->connection, c, NULL);
if (r) {
*x = r->root_x;
*y = r->root_y;
free(r);
return TRUE;
}
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return FALSE;
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}
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static int monitor_active_from_winid(xcb_drawable_t id, workarea *mon) {
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if (mon == NULL) {
g_error("%s: mon == NULL", __FUNCTION__);
return FALSE;
}
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xcb_window_t root = xcb->screen->root;
xcb_get_geometry_cookie_t c = xcb_get_geometry(xcb->connection, id);
xcb_get_geometry_reply_t *r =
xcb_get_geometry_reply(xcb->connection, c, NULL);
if (r) {
xcb_translate_coordinates_cookie_t ct =
xcb_translate_coordinates(xcb->connection, id, root, r->x, r->y);
xcb_translate_coordinates_reply_t *t =
xcb_translate_coordinates_reply(xcb->connection, ct, NULL);
if (t) {
// place the menu above the window
// if some window is focused, place menu above window, else fall
// back to selected monitor.
mon->x = t->dst_x - r->x;
mon->y = t->dst_y - r->y;
mon->w = r->width;
mon->h = r->height;
free(r);
free(t);
return TRUE;
}
free(r);
}
return FALSE;
}
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static int monitor_active_from_id_focused(int mon_id, workarea *mon) {
int retv = FALSE;
xcb_window_t active_window;
xcb_get_property_cookie_t awc;
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if (mon == NULL) {
g_error("%s: mon == NULL", __FUNCTION__);
return retv;
}
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awc = xcb_ewmh_get_active_window(&xcb->ewmh, xcb->screen_nbr);
if (!xcb_ewmh_get_active_window_reply(&xcb->ewmh, awc, &active_window,
NULL)) {
g_debug(
"Failed to get active window, falling back to mouse location (-5).");
return retv;
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}
xcb_query_tree_cookie_t tree_cookie =
xcb_query_tree(xcb->connection, active_window);
xcb_query_tree_reply_t *tree_reply =
xcb_query_tree_reply(xcb->connection, tree_cookie, NULL);
if (!tree_reply) {
g_debug(
"Failed to get parent window, falling back to mouse location (-5).");
return retv;
}
// get geometry.
xcb_get_geometry_cookie_t c =
xcb_get_geometry(xcb->connection, active_window);
xcb_get_geometry_reply_t *r =
xcb_get_geometry_reply(xcb->connection, c, NULL);
if (!r) {
g_debug("Failed to get geometry of active window, falling back to mouse "
"location (-5).");
free(tree_reply);
return retv;
}
xcb_translate_coordinates_cookie_t ct = xcb_translate_coordinates(
xcb->connection, tree_reply->parent, r->root, r->x, r->y);
xcb_translate_coordinates_reply_t *t =
xcb_translate_coordinates_reply(xcb->connection, ct, NULL);
if (t) {
if (mon_id == -2) {
// place the menu above the window
// if some window is focused, place menu above window, else fall
// back to selected monitor.
mon->x = t->dst_x - r->x;
mon->y = t->dst_y - r->y;
mon->w = r->width;
mon->h = r->height;
retv = TRUE;
if ((current_window_manager & WM_ROOT_WINDOW_OFFSET) ==
WM_ROOT_WINDOW_OFFSET) {
mon->x += r->x;
mon->y += r->y;
}
g_debug("mon pos: %d %d %d-%d", mon->x, mon->y, mon->w, mon->h);
} else if (mon_id == -4) {
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g_debug("Find monitor at location: %d %d", t->dst_x, t->dst_y);
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monitor_dimensions(t->dst_x, t->dst_y, mon);
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g_debug("Monitor found pos: %d %d %d-%d", mon->x, mon->y, mon->w, mon->h);
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retv = TRUE;
}
free(t);
} else {
g_debug("Failed to get translate position of active window, falling back "
"to mouse location (-5).");
}
free(r);
free(tree_reply);
return retv;
}
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static int monitor_active_from_id(int mon_id, workarea *mon) {
xcb_window_t root = xcb->screen->root;
int x, y;
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if (mon == NULL) {
g_error("%s: mon == NULL", __FUNCTION__);
return FALSE;
}
g_debug("Monitor id: %d", mon_id);
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// At mouse position.
if (mon_id == -3) {
if (pointer_get(root, &x, &y)) {
monitor_dimensions(x, y, mon);
mon->x = x;
mon->y = y;
return TRUE;
}
}
// Focused monitor
else if (mon_id == -1) {
g_debug("rofi on current monitor");
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// Get the current desktop.
unsigned int current_desktop = 0;
xcb_get_property_cookie_t gcdc;
gcdc = xcb_ewmh_get_current_desktop(&xcb->ewmh, xcb->screen_nbr);
if (xcb_ewmh_get_current_desktop_reply(&xcb->ewmh, gcdc, &current_desktop,
NULL)) {
g_debug("Found current desktop: %u", current_desktop);
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xcb_get_property_cookie_t c =
xcb_ewmh_get_desktop_viewport(&xcb->ewmh, xcb->screen_nbr);
xcb_ewmh_get_desktop_viewport_reply_t vp;
if (xcb_ewmh_get_desktop_viewport_reply(&xcb->ewmh, c, &vp, NULL)) {
g_debug("Found %d number of desktops", vp.desktop_viewport_len);
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if (current_desktop < vp.desktop_viewport_len) {
g_debug("Found viewport for desktop: %d %d",
vp.desktop_viewport[current_desktop].x,
vp.desktop_viewport[current_desktop].y);
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monitor_dimensions(vp.desktop_viewport[current_desktop].x,
vp.desktop_viewport[current_desktop].y, mon);
g_debug("Found monitor @: %d %d %dx%d", mon->x, mon->y, mon->w,
mon->h);
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xcb_ewmh_get_desktop_viewport_reply_wipe(&vp);
return TRUE;
}
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g_debug("Viewport does not exist for current desktop: %d, falling "
"back to mouse location (-5)",
current_desktop);
xcb_ewmh_get_desktop_viewport_reply_wipe(&vp);
} else {
g_debug("Failed to get viewport for current desktop: %d, falling back "
"to mouse location (-5).",
current_desktop);
}
} else {
g_debug("Failed to get current desktop, falling back to mouse location "
"(-5).");
}
} else if (mon_id == -2 || mon_id == -4) {
if (monitor_active_from_id_focused(mon_id, mon)) {
return TRUE;
}
}
// Monitor that has mouse pointer.
else if (mon_id == -5) {
if (pointer_get(root, &x, &y)) {
monitor_dimensions(x, y, mon);
return TRUE;
}
// This is our give up point.
return FALSE;
}
g_debug("Failed to find monitor, fall back to monitor showing mouse.");
return monitor_active_from_id(-5, mon);
}
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// determine which monitor holds the active window, or failing that the mouse
// pointer
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gboolean mon_set = FALSE;
workarea mon_cache = {
0,
};
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int monitor_active(workarea *mon) {
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if (mon == NULL) {
g_error("%s: mon == NULL", __FUNCTION__);
return FALSE;
}
g_debug("Monitor active");
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if (mon_set) {
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*mon = mon_cache;
return TRUE;
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}
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if (config.monitor != NULL) {
g_debug("Monitor lookup by name : %s", config.monitor);
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for (workarea *iter = xcb->monitors; iter; iter = iter->next) {
if (g_strcmp0(config.monitor, iter->name) == 0) {
*mon = *iter;
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mon_cache = *mon;
mon_set = TRUE;
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return TRUE;
}
}
}
g_debug("Monitor lookup by name failed: %s", config.monitor);
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// Grab primary.
if (g_strcmp0(config.monitor, "primary") == 0) {
for (workarea *iter = xcb->monitors; iter; iter = iter->next) {
if (iter->primary) {
*mon = *iter;
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mon_cache = *mon;
mon_set = TRUE;
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return TRUE;
}
}
}
if (g_str_has_prefix(config.monitor, "wid:")) {
char *end = NULL;
xcb_drawable_t win = g_ascii_strtoll(config.monitor + 4, &end, 0);
if (end != config.monitor) {
if (monitor_active_from_winid(win, mon)) {
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mon_cache = *mon;
mon_set = TRUE;
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return TRUE;
}
}
}
{
// IF fail, fall back to classic mode.
char *end = NULL;
gint64 mon_id = g_ascii_strtoll(config.monitor, &end, 0);
if (end != config.monitor) {
if (mon_id >= 0) {
if (monitor_get_dimension(mon_id, mon)) {
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mon_cache = *mon;
mon_set = TRUE;
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return TRUE;
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}
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g_warning("Failed to find selected monitor.");
} else {
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int val = monitor_active_from_id(mon_id, mon);
mon_cache = *mon;
mon_set = TRUE;
return val;
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}
}
}
// Fallback.
monitor_dimensions(0, 0, mon);
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mon_cache = *mon;
mon_set = TRUE;
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return FALSE;
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}
/**
* @param state Internal state of the menu.
* @param xse X selection event.
*
* Handle paste event.
*/
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static void rofi_view_paste(RofiViewState *state,
xcb_selection_notify_event_t *xse) {
if (xse->property == XCB_ATOM_NONE) {
g_warning("Failed to convert selection");
} else if (xse->property == xcb->ewmh.UTF8_STRING) {
gchar *text = window_get_text_prop(xse->requestor, xcb->ewmh.UTF8_STRING);
if (text != NULL && text[0] != '\0') {
unsigned int dl = strlen(text);
// Strip new line
for (unsigned int i = 0; i < dl; i++) {
if (text[i] == '\n') {
text[i] = '\0';
}
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}
rofi_view_handle_text(state, text);
}
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g_free(text);
} else {
g_warning("Failed");
}
}
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static gboolean
x11_button_to_nk_bindings_button(guint32 x11_button,
NkBindingsMouseButton *button) {
switch (x11_button) {
case 1:
*button = NK_BINDINGS_MOUSE_BUTTON_PRIMARY;
break;
case 3:
*button = NK_BINDINGS_MOUSE_BUTTON_SECONDARY;
break;
case 2:
*button = NK_BINDINGS_MOUSE_BUTTON_MIDDLE;
break;
case 8:
*button = NK_BINDINGS_MOUSE_BUTTON_BACK;
break;
case 9:
*button = NK_BINDINGS_MOUSE_BUTTON_FORWARD;
break;
case 4:
case 5:
case 6:
case 7:
return FALSE;
default:
*button = NK_BINDINGS_MOUSE_BUTTON_EXTRA + x11_button;
}
return TRUE;
}
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static gboolean x11_button_to_nk_bindings_scroll(guint32 x11_button,
NkBindingsScrollAxis *axis,
gint32 *steps) {
*steps = 1;
switch (x11_button) {
case 4:
*steps = -1;
/* fallthrough */
case 5:
*axis = NK_BINDINGS_SCROLL_AXIS_VERTICAL;
break;
case 6:
*steps = -1;
/* fallthrough */
case 7:
*axis = NK_BINDINGS_SCROLL_AXIS_HORIZONTAL;
break;
default:
return FALSE;
}
return TRUE;
}
/**
* Process X11 events in the main-loop (gui-thread) of the application.
*/
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static void main_loop_x11_event_handler_view(xcb_generic_event_t *event) {
RofiViewState *state = rofi_view_get_active();
if (state == NULL) {
return;
}
switch (event->response_type & ~0x80) {
case XCB_CLIENT_MESSAGE: {
xcb_client_message_event_t *cme = (xcb_client_message_event_t *)event;
xcb_atom_t atom = cme->data.data32[0];
xcb_timestamp_t time = cme->data.data32[1];
if (atom == netatoms[WM_TAKE_FOCUS]) {
xcb_set_input_focus(xcb->connection, XCB_INPUT_FOCUS_NONE, cme->window,
time);
xcb_flush(xcb->connection);
}
break;
}
case XCB_DESTROY_NOTIFY: {
xcb_window_t win = ((xcb_destroy_notify_event_t *)event)->window;
if (win != rofi_view_get_window()) {
#ifdef WINDOW_MODE
window_client_handle_signal(win, FALSE);
#endif
} else {
g_main_loop_quit(xcb->main_loop);
}
break;
}
case XCB_CREATE_NOTIFY: {
xcb_window_t win = ((xcb_create_notify_event_t *)event)->window;
if (win != rofi_view_get_window()) {
#ifdef WINDOW_MODE
window_client_handle_signal(win, TRUE);
#endif
}
break;
}
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case XCB_EXPOSE:
rofi_view_frame_callback();
break;
case XCB_CONFIGURE_NOTIFY: {
xcb_configure_notify_event_t *xce = (xcb_configure_notify_event_t *)event;
rofi_view_temp_configure_notify(state, xce);
break;
}
case XCB_MOTION_NOTIFY: {
xcb_motion_notify_event_t *xme = (xcb_motion_notify_event_t *)event;
gboolean button_mask = xme->state & XCB_EVENT_MASK_BUTTON_1_MOTION;
if (button_mask && config.click_to_exit == TRUE) {
xcb->mouse_seen = TRUE;
}
rofi_view_handle_mouse_motion(state, xme->event_x, xme->event_y,
!button_mask && config.hover_select);
break;
}
case XCB_BUTTON_PRESS: {
xcb_button_press_event_t *bpe = (xcb_button_press_event_t *)event;
NkBindingsMouseButton button;
NkBindingsScrollAxis axis;
gint32 steps;
xcb->last_timestamp = bpe->time;
rofi_view_handle_mouse_motion(state, bpe->event_x, bpe->event_y, FALSE);
if (x11_button_to_nk_bindings_button(bpe->detail, &button)) {
nk_bindings_seat_handle_button(xcb->bindings_seat, NULL, button,
NK_BINDINGS_BUTTON_STATE_PRESS, bpe->time);
} else if (x11_button_to_nk_bindings_scroll(bpe->detail, &axis, &steps)) {
nk_bindings_seat_handle_scroll(xcb->bindings_seat, NULL, axis, steps);
}
break;
}
case XCB_SELECTION_CLEAR: {
g_debug("Selection Clear.");
xcb_stuff_set_clipboard(NULL);
} break;
case XCB_SELECTION_REQUEST: {
g_debug("Selection Request.");
xcb_selection_request_event_t *req = (xcb_selection_request_event_t *)event;
if (req->selection == netatoms[CLIPBOARD]) {
xcb_atom_t targets[2];
xcb_selection_notify_event_t selection_notify = {
.response_type = XCB_SELECTION_NOTIFY,
.sequence = 0,
.time = req->time,
.requestor = req->requestor,
.selection = req->selection,
.target = req->target,
.property = XCB_ATOM_NONE,
};
// If no clipboard, we return NONE.
if (xcb->clipboard) {
// Request for UTF-8
if (req->target == netatoms[UTF8_STRING]) {
g_debug("Selection Request UTF-8.");
xcb_change_property(xcb->connection, XCB_PROP_MODE_REPLACE,
req->requestor, req->property,
netatoms[UTF8_STRING], 8,
strlen(xcb->clipboard) + 1, xcb->clipboard);
selection_notify.property = req->property;
} else if (req->target == netatoms[TARGETS]) {
g_debug("Selection Request Targets.");
// We currently only support UTF8 from clipboard. So indicate this.
targets[0] = netatoms[UTF8_STRING];
xcb_change_property(xcb->connection, XCB_PROP_MODE_REPLACE,
req->requestor, req->property, XCB_ATOM_ATOM, 32,
1, targets);
selection_notify.property = req->property;
}
}
xcb_send_event(xcb->connection,
0, // propagate
req->requestor, XCB_EVENT_MASK_NO_EVENT,
(const char *)&selection_notify);
xcb_flush(xcb->connection);
}
} break;
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case XCB_BUTTON_RELEASE: {
xcb_button_release_event_t *bre = (xcb_button_release_event_t *)event;
NkBindingsMouseButton button;
xcb->last_timestamp = bre->time;
if (x11_button_to_nk_bindings_button(bre->detail, &button)) {
nk_bindings_seat_handle_button(xcb->bindings_seat, NULL, button,
NK_BINDINGS_BUTTON_STATE_RELEASE,
bre->time);
}
if (config.click_to_exit == TRUE) {
if (!xcb->mouse_seen) {
rofi_view_temp_click_to_exit(state, bre->event);
}
xcb->mouse_seen = FALSE;
}
break;
}
// Paste event.
case XCB_SELECTION_NOTIFY:
rofi_view_paste(state, (xcb_selection_notify_event_t *)event);
break;
case XCB_KEYMAP_NOTIFY: {
xcb_keymap_notify_event_t *kne = (xcb_keymap_notify_event_t *)event;
for (gint32 by = 0; by < 31; ++by) {
for (gint8 bi = 0; bi < 7; ++bi) {
if (kne->keys[by] & (1 << bi)) {
// X11 keycodes starts at 8
nk_bindings_seat_handle_key(xcb->bindings_seat, NULL,
(8 * by + bi) + 8,
NK_BINDINGS_KEY_STATE_PRESSED);
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}
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}
}
break;
}
case XCB_KEY_PRESS: {
xcb_key_press_event_t *xkpe = (xcb_key_press_event_t *)event;
gchar *text;
xcb->last_timestamp = xkpe->time;
if (config.xserver_i300_workaround) {
text = nk_bindings_seat_handle_key_with_modmask(
xcb->bindings_seat, NULL, xkpe->state, xkpe->detail,
NK_BINDINGS_KEY_STATE_PRESS);
} else {
text = nk_bindings_seat_handle_key(xcb->bindings_seat, NULL, xkpe->detail,
NK_BINDINGS_KEY_STATE_PRESS);
}
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if (text != NULL) {
rofi_view_handle_text(state, text);
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g_free(text);
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}
break;
}
case XCB_KEY_RELEASE: {
xcb_key_release_event_t *xkre = (xcb_key_release_event_t *)event;
xcb->last_timestamp = xkre->time;
nk_bindings_seat_handle_key(xcb->bindings_seat, NULL, xkre->detail,
NK_BINDINGS_KEY_STATE_RELEASE);
break;
}
default:
break;
}
rofi_view_maybe_update(state);
}
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static gboolean main_loop_x11_event_handler(xcb_generic_event_t *ev,
G_GNUC_UNUSED gpointer user_data) {
if (ev == NULL) {
int status = xcb_connection_has_error(xcb->connection);
if (status > 0) {
g_warning("The XCB connection to X server had a fatal error: %d", status);
g_main_loop_quit(xcb->main_loop);
return G_SOURCE_REMOVE;
}
// DD: it seems this handler often gets dispatched while the queue in GWater
// is empty. resulting in a NULL for ev. This seems not an error.
// g_warning("main_loop_x11_event_handler: ev == NULL, status == %d",
// status);
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return G_SOURCE_CONTINUE;
}
uint8_t type = ev->response_type & ~0x80;
if (type == xcb->xkb.first_event) {
switch (ev->pad0) {
case XCB_XKB_MAP_NOTIFY: {
struct xkb_keymap *keymap = xkb_x11_keymap_new_from_device(
nk_bindings_seat_get_context(xcb->bindings_seat), xcb->connection,
xcb->xkb.device_id, 0);
struct xkb_state *state = xkb_x11_state_new_from_device(
keymap, xcb->connection, xcb->xkb.device_id);
nk_bindings_seat_update_keymap(xcb->bindings_seat, keymap, state);
xkb_keymap_unref(keymap);
xkb_state_unref(state);
break;
}
case XCB_XKB_STATE_NOTIFY: {
xcb_xkb_state_notify_event_t *ksne = (xcb_xkb_state_notify_event_t *)ev;
nk_bindings_seat_update_mask(xcb->bindings_seat, NULL, ksne->baseMods,
ksne->latchedMods, ksne->lockedMods,
ksne->baseGroup, ksne->latchedGroup,
ksne->lockedGroup);
rofi_view_maybe_update(rofi_view_get_active());
break;
}
}
return G_SOURCE_CONTINUE;
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}
if (xcb->sndisplay != NULL) {
sn_xcb_display_process_event(xcb->sndisplay, ev);
}
main_loop_x11_event_handler_view(ev);
return G_SOURCE_CONTINUE;
}
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void rofi_xcb_set_input_focus(xcb_window_t w) {
if (config.steal_focus != TRUE) {
xcb->focus_revert = 0;
return;
}
xcb_generic_error_t *error;
xcb_get_input_focus_reply_t *freply;
xcb_get_input_focus_cookie_t fcookie = xcb_get_input_focus(xcb->connection);
freply = xcb_get_input_focus_reply(xcb->connection, fcookie, &error);
if (error != NULL) {
g_warning("Could not get input focus (error %d), will revert focus to best "
"effort",
error->error_code);
free(error);
xcb->focus_revert = 0;
} else {
xcb->focus_revert = freply->focus;
}
xcb_set_input_focus(xcb->connection, XCB_INPUT_FOCUS_POINTER_ROOT, w,
XCB_CURRENT_TIME);
xcb_flush(xcb->connection);
}
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void rofi_xcb_revert_input_focus(void) {
if (xcb->focus_revert == 0) {
return;
}
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xcb_set_input_focus(xcb->connection, XCB_INPUT_FOCUS_POINTER_ROOT,
xcb->focus_revert, XCB_CURRENT_TIME);
xcb_flush(xcb->connection);
}
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static int take_pointer(xcb_window_t w, int iters) {
int i = 0;
while (TRUE) {
if (xcb_connection_has_error(xcb->connection)) {
g_warning("Connection has error");
exit(EXIT_FAILURE);
}
xcb_grab_pointer_cookie_t cc =
xcb_grab_pointer(xcb->connection, 1, w, XCB_EVENT_MASK_BUTTON_RELEASE,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, w, XCB_NONE,
XCB_CURRENT_TIME);
xcb_grab_pointer_reply_t *r =
xcb_grab_pointer_reply(xcb->connection, cc, NULL);
if (r) {
if (r->status == XCB_GRAB_STATUS_SUCCESS) {
free(r);
return 1;
}
free(r);
}
if ((++i) > iters) {
break;
}
struct timespec del = {.tv_sec = 0, .tv_nsec = 1000000};
nanosleep(&del, NULL);
}
return 0;
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}
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static int take_keyboard(xcb_window_t w, int iters) {
int i = 0;
while (TRUE) {
if (xcb_connection_has_error(xcb->connection)) {
g_warning("Connection has error");
exit(EXIT_FAILURE);
}
xcb_grab_keyboard_cookie_t cc =
xcb_grab_keyboard(xcb->connection, 1, w, XCB_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
xcb_grab_keyboard_reply_t *r =
xcb_grab_keyboard_reply(xcb->connection, cc, NULL);
if (r) {
if (r->status == XCB_GRAB_STATUS_SUCCESS) {
free(r);
return 1;
}
free(r);
}
if ((++i) > iters) {
break;
}
struct timespec del = {.tv_sec = 0, .tv_nsec = 1000000};
nanosleep(&del, NULL);
}
return 0;
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}
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static void release_keyboard(void) {
xcb_ungrab_keyboard(xcb->connection, XCB_CURRENT_TIME);
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}
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static void release_pointer(void) {
xcb_ungrab_pointer(xcb->connection, XCB_CURRENT_TIME);
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}
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/** X server error depth. to handle nested errors. */
static int error_trap_depth = 0;
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static void error_trap_push(G_GNUC_UNUSED SnDisplay *display,
G_GNUC_UNUSED xcb_connection_t *xdisplay) {
++error_trap_depth;
}
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static void error_trap_pop(G_GNUC_UNUSED SnDisplay *display,
xcb_connection_t *xdisplay) {
if (error_trap_depth == 0) {
g_warning("Error trap underflow!");
exit(EXIT_FAILURE);
}
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xcb_flush(xdisplay);
--error_trap_depth;
}
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/**
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* Fill in the list of frequently used X11 Atoms.
2015-02-10 07:12:03 +00:00
*/
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static void x11_create_frequently_used_atoms(void) {
// X atom values
for (int i = 0; i < NUM_NETATOMS; i++) {
xcb_intern_atom_cookie_t cc = xcb_intern_atom(
xcb->connection, 0, strlen(netatom_names[i]), netatom_names[i]);
xcb_intern_atom_reply_t *r =
xcb_intern_atom_reply(xcb->connection, cc, NULL);
if (r) {
netatoms[i] = r->atom;
free(r);
}
}
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}
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static void x11_helper_discover_window_manager(void) {
xcb_window_t wm_win = 0;
xcb_get_property_cookie_t cc = xcb_ewmh_get_supporting_wm_check_unchecked(
&xcb->ewmh, xcb_stuff_get_root_window());
if (xcb_ewmh_get_supporting_wm_check_reply(&xcb->ewmh, cc, &wm_win, NULL)) {
xcb_ewmh_get_utf8_strings_reply_t wtitle;
xcb_get_property_cookie_t cookie =
xcb_ewmh_get_wm_name_unchecked(&(xcb->ewmh), wm_win);
if (xcb_ewmh_get_wm_name_reply(&(xcb->ewmh), cookie, &wtitle, (void *)0)) {
if (wtitle.strings_len > 0) {
g_debug("Found window manager: |%s|", wtitle.strings);
if (g_strcmp0(wtitle.strings, "i3") == 0) {
current_window_manager =
WM_DO_NOT_CHANGE_CURRENT_DESKTOP | WM_PANGO_WORKSPACE_NAMES;
} else if (g_strcmp0(wtitle.strings, "bspwm") == 0) {
current_window_manager = WM_ROOT_WINDOW_OFFSET;
}
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}
xcb_ewmh_get_utf8_strings_reply_wipe(&wtitle);
}
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}
}
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gboolean display_setup(GMainLoop *main_loop, NkBindings *bindings) {
// Get DISPLAY, first env, then argument.
// We never modify display_str content.
char *display_str = (char *)g_getenv("DISPLAY");
find_arg_str("-display", &display_str);
xcb->main_loop = main_loop;
xcb->source = g_water_xcb_source_new(g_main_loop_get_context(xcb->main_loop),
display_str, &xcb->screen_nbr,
main_loop_x11_event_handler, NULL, NULL);
if (xcb->source == NULL) {
g_warning("Failed to open display: %s", display_str);
return FALSE;
}
xcb->connection = g_water_xcb_source_get_connection(xcb->source);
TICK_N("Open Display");
xcb->screen = xcb_aux_get_screen(xcb->connection, xcb->screen_nbr);
x11_build_monitor_layout();
xcb_intern_atom_cookie_t *ac =
xcb_ewmh_init_atoms(xcb->connection, &xcb->ewmh);
xcb_generic_error_t *errors = NULL;
xcb_ewmh_init_atoms_replies(&xcb->ewmh, ac, &errors);
if (errors) {
g_warning("Failed to create EWMH atoms");
free(errors);
}
// Discover the current active window manager.
x11_helper_discover_window_manager();
TICK_N("Setup XCB");
if (xkb_x11_setup_xkb_extension(
xcb->connection, XKB_X11_MIN_MAJOR_XKB_VERSION,
XKB_X11_MIN_MINOR_XKB_VERSION, XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS,
NULL, NULL, &xcb->xkb.first_event, NULL) < 0) {
g_warning("cannot setup XKB extension!");
return FALSE;
}
xcb->xkb.device_id = xkb_x11_get_core_keyboard_device_id(xcb->connection);
enum {
required_events =
(XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY |
XCB_XKB_EVENT_TYPE_MAP_NOTIFY | XCB_XKB_EVENT_TYPE_STATE_NOTIFY),
required_nkn_details = (XCB_XKB_NKN_DETAIL_KEYCODES),
required_map_parts =
(XCB_XKB_MAP_PART_KEY_TYPES | XCB_XKB_MAP_PART_KEY_SYMS |
XCB_XKB_MAP_PART_MODIFIER_MAP | XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
XCB_XKB_MAP_PART_KEY_ACTIONS | XCB_XKB_MAP_PART_VIRTUAL_MODS |
XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP),
required_state_details =
(XCB_XKB_STATE_PART_MODIFIER_BASE | XCB_XKB_STATE_PART_MODIFIER_LATCH |
XCB_XKB_STATE_PART_MODIFIER_LOCK | XCB_XKB_STATE_PART_GROUP_BASE |
XCB_XKB_STATE_PART_GROUP_LATCH | XCB_XKB_STATE_PART_GROUP_LOCK),
};
static const xcb_xkb_select_events_details_t details = {
.affectNewKeyboard = required_nkn_details,
.newKeyboardDetails = required_nkn_details,
.affectState = required_state_details,
.stateDetails = required_state_details,
};
xcb_xkb_select_events(xcb->connection, xcb->xkb.device_id,
required_events, /* affectWhich */
0, /* clear */
required_events, /* selectAll */
required_map_parts, /* affectMap */
required_map_parts, /* map */
&details);
xcb->bindings_seat = nk_bindings_seat_new(bindings, XKB_CONTEXT_NO_FLAGS);
struct xkb_keymap *keymap = xkb_x11_keymap_new_from_device(
nk_bindings_seat_get_context(xcb->bindings_seat), xcb->connection,
xcb->xkb.device_id, XKB_KEYMAP_COMPILE_NO_FLAGS);
if (keymap == NULL) {
g_warning("Failed to get Keymap for current keyboard device.");
return FALSE;
}
struct xkb_state *state = xkb_x11_state_new_from_device(
keymap, xcb->connection, xcb->xkb.device_id);
if (state == NULL) {
g_warning("Failed to get state object for current keyboard device.");
return FALSE;
}
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nk_bindings_seat_update_keymap(xcb->bindings_seat, keymap, state);
xkb_state_unref(state);
xkb_keymap_unref(keymap);
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// determine numlock mask so we can bind on keys with and without it
x11_create_frequently_used_atoms();
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if (xcb_connection_has_error(xcb->connection)) {
g_warning("Connection has error");
return FALSE;
}
uint32_t val[] = {XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY};
xcb_change_window_attributes(xcb->connection, xcb_stuff_get_root_window(),
XCB_CW_EVENT_MASK, val);
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// startup not.
xcb->sndisplay =
sn_xcb_display_new(xcb->connection, error_trap_push, error_trap_pop);
if (xcb_connection_has_error(xcb->connection)) {
g_warning("Connection has error");
return FALSE;
}
if (xcb->sndisplay != NULL) {
xcb->sncontext = sn_launchee_context_new_from_environment(xcb->sndisplay,
xcb->screen_nbr);
}
if (xcb_connection_has_error(xcb->connection)) {
g_warning("Connection has error");
return FALSE;
}
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return TRUE;
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}
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static void x11_create_visual_and_colormap(void) {
xcb_depth_t *root_depth = NULL;
xcb_depth_iterator_t depth_iter;
for (depth_iter = xcb_screen_allowed_depths_iterator(xcb->screen);
depth_iter.rem; xcb_depth_next(&depth_iter)) {
xcb_depth_t *d = depth_iter.data;
xcb_visualtype_iterator_t visual_iter;
for (visual_iter = xcb_depth_visuals_iterator(d); visual_iter.rem;
xcb_visualtype_next(&visual_iter)) {
xcb_visualtype_t *v = visual_iter.data;
if ((v->bits_per_rgb_value == 8) && (d->depth == 32) &&
(v->_class == XCB_VISUAL_CLASS_TRUE_COLOR)) {
depth = d;
visual = v;
}
if (xcb->screen->root_visual == v->visual_id) {
root_depth = d;
root_visual = v;
}
}
}
if (visual != NULL) {
xcb_void_cookie_t c;
xcb_generic_error_t *e;
map = xcb_generate_id(xcb->connection);
c = xcb_create_colormap_checked(xcb->connection, XCB_COLORMAP_ALLOC_NONE,
map, xcb->screen->root, visual->visual_id);
e = xcb_request_check(xcb->connection, c);
if (e) {
depth = NULL;
visual = NULL;
free(e);
}
}
if (visual == NULL) {
depth = root_depth;
visual = root_visual;
map = xcb->screen->default_colormap;
}
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}
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static void x11_lookup_cursors(void) {
xcb_cursor_context_t *ctx;
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if (xcb_cursor_context_new(xcb->connection, xcb->screen, &ctx) < 0) {
return;
}
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for (int i = 0; i < NUM_CURSORS; ++i) {
cursors[i] = xcb_cursor_load_cursor(ctx, cursor_names[i].css_name);
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if (cursors[i] == XCB_CURSOR_NONE) {
cursors[i] =
xcb_cursor_load_cursor(ctx, cursor_names[i].traditional_name);
}
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}
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xcb_cursor_context_free(ctx);
}
/** Retry count of grabbing keyboard. */
unsigned int lazy_grab_retry_count_kb = 0;
/** Retry count of grabbing pointer. */
unsigned int lazy_grab_retry_count_pt = 0;
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static gboolean lazy_grab_pointer(G_GNUC_UNUSED gpointer data) {
// After 5 sec.
if (lazy_grab_retry_count_pt > (5 * 1000)) {
g_warning("Failed to grab pointer after %u times. Giving up.",
lazy_grab_retry_count_pt);
return G_SOURCE_REMOVE;
}
if (take_pointer(xcb_stuff_get_root_window(), 0)) {
return G_SOURCE_REMOVE;
}
lazy_grab_retry_count_pt++;
return G_SOURCE_CONTINUE;
}
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static gboolean lazy_grab_keyboard(G_GNUC_UNUSED gpointer data) {
// After 5 sec.
if (lazy_grab_retry_count_kb > (5 * 1000)) {
g_warning("Failed to grab keyboard after %u times. Giving up.",
lazy_grab_retry_count_kb);
g_main_loop_quit(xcb->main_loop);
return G_SOURCE_REMOVE;
}
if (take_keyboard(xcb_stuff_get_root_window(), 0)) {
return G_SOURCE_REMOVE;
}
lazy_grab_retry_count_kb++;
return G_SOURCE_CONTINUE;
}
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gboolean display_late_setup(void) {
x11_create_visual_and_colormap();
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x11_lookup_cursors();
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/**
* Create window (without showing)
*/
// Try to grab the keyboard as early as possible.
// We grab this using the rootwindow (as dmenu does it).
// this seems to result in the smallest delay for most people.
if (find_arg("-normal-window") >= 0) {
return TRUE;
}
if (find_arg("-no-lazy-grab") >= 0) {
if (!take_keyboard(xcb_stuff_get_root_window(), 500)) {
g_warning("Failed to grab keyboard, even after %d uS.", 500 * 1000);
return FALSE;
}
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if (!take_pointer(xcb_stuff_get_root_window(), 100)) {
g_warning("Failed to grab mouse pointer, even after %d uS.", 100 * 1000);
}
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} else {
if (!take_keyboard(xcb_stuff_get_root_window(), 0)) {
g_timeout_add(1, lazy_grab_keyboard, NULL);
}
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if (!take_pointer(xcb_stuff_get_root_window(), 0)) {
g_timeout_add(1, lazy_grab_pointer, NULL);
}
}
return TRUE;
}
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xcb_window_t xcb_stuff_get_root_window(void) { return xcb->screen->root; }
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void display_early_cleanup(void) {
release_keyboard();
release_pointer();
xcb_flush(xcb->connection);
}
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void display_cleanup(void) {
if (xcb->connection == NULL) {
return;
}
g_debug("Cleaning up XCB and XKB");
nk_bindings_seat_free(xcb->bindings_seat);
if (xcb->sncontext != NULL) {
sn_launchee_context_unref(xcb->sncontext);
xcb->sncontext = NULL;
}
if (xcb->sndisplay != NULL) {
sn_display_unref(xcb->sndisplay);
xcb->sndisplay = NULL;
}
x11_monitors_free();
xcb_ewmh_connection_wipe(&(xcb->ewmh));
xcb_flush(xcb->connection);
xcb_aux_sync(xcb->connection);
g_water_xcb_source_free(xcb->source);
xcb->source = NULL;
xcb->connection = NULL;
xcb->screen = NULL;
xcb->screen_nbr = 0;
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}
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void x11_disable_decoration(xcb_window_t window) {
// Flag used to indicate we are setting the decoration type.
const uint32_t MWM_HINTS_DECORATIONS = (1 << 1);
// Motif property data structure
struct MotifWMHints {
uint32_t flags;
uint32_t functions;
uint32_t decorations;
int32_t inputMode;
uint32_t state;
};
struct MotifWMHints hints;
hints.flags = MWM_HINTS_DECORATIONS;
hints.decorations = 0;
hints.functions = 0;
hints.inputMode = 0;
hints.state = 0;
xcb_atom_t ha = netatoms[_MOTIF_WM_HINTS];
xcb_change_property(xcb->connection, XCB_PROP_MODE_REPLACE, window, ha, ha,
32, 5, &hints);
}
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void x11_set_cursor(xcb_window_t window, X11CursorType type) {
if (type < 0 || type >= NUM_CURSORS) {
return;
}
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if (cursors[type] == XCB_CURSOR_NONE) {
return;
}
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xcb_change_window_attributes(xcb->connection, window, XCB_CW_CURSOR,
&(cursors[type]));
}
void xcb_stuff_set_clipboard(char *data) {
g_free(xcb->clipboard);
xcb->clipboard = data;
}