i3/mainx.c

593 lines
15 KiB
C

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <xcb/xcb.h>
#include "xcb_wm.h"
#include "xcb_aux.h"
#include "data.h"
Font myfont;
static const int TOP = 20;
static const int LEFT = 5;
static const int BOTTOM = 5;
static const int RIGHT = 5;
table_t *byChild = 0;
table_t *byParent = 0;
static const char *labelError[] = {
"Success",
"BadRequest",
"BadValue",
"BadWindow",
"BadPixmap",
"BadAtom",
"BadCursor",
"BadFont",
"BadMatch",
"BadDrawable",
"BadAccess",
"BadAlloc",
"BadColor",
"BadGC",
"BadIDChoice",
"BadName",
"BadLength",
"BadImplementation",
};
static const char *labelRequest[] = {
"no request",
"CreateWindow",
"ChangeWindowAttributes",
"GetWindowAttributes",
"DestroyWindow",
"DestroySubwindows",
"ChangeSaveSet",
"ReparentWindow",
"MapWindow",
"MapSubwindows",
"UnmapWindow",
"UnmapSubwindows",
"ConfigureWindow",
"CirculateWindow",
"GetGeometry",
"QueryTree",
"InternAtom",
"GetAtomName",
"ChangeProperty",
"DeleteProperty",
"GetProperty",
"ListProperties",
"SetSelectionOwner",
"GetSelectionOwner",
"ConvertSelection",
"SendEvent",
"GrabPointer",
"UngrabPointer",
"GrabButton",
"UngrabButton",
"ChangeActivePointerGrab",
"GrabKeyboard",
"UngrabKeyboard",
"GrabKey",
"UngrabKey",
"AllowEvents",
"GrabServer",
"UngrabServer",
"QueryPointer",
"GetMotionEvents",
"TranslateCoords",
"WarpPointer",
"SetInputFocus",
"GetInputFocus",
"QueryKeymap",
"OpenFont",
"CloseFont",
"QueryFont",
"QueryTextExtents",
"ListFonts",
"ListFontsWithInfo",
"SetFontPath",
"GetFontPath",
"CreatePixmap",
"FreePixmap",
"CreateGC",
"ChangeGC",
"CopyGC",
"SetDashes",
"SetClipRectangles",
"FreeGC",
"ClearArea",
"CopyArea",
"CopyPlane",
"PolyPoint",
"PolyLine",
"PolySegment",
"PolyRectangle",
"PolyArc",
"FillPoly",
"PolyFillRectangle",
"PolyFillArc",
"PutImage",
"GetImage",
"PolyText",
"PolyText",
"ImageText",
"ImageText",
"CreateColormap",
"FreeColormap",
"CopyColormapAndFree",
"InstallColormap",
"UninstallColormap",
"ListInstalledColormaps",
"AllocColor",
"AllocNamedColor",
"AllocColorCells",
"AllocColorPlanes",
"FreeColors",
"StoreColors",
"StoreNamedColor",
"QueryColors",
"LookupColor",
"CreateCursor",
"CreateGlyphCursor",
"FreeCursor",
"RecolorCursor",
"QueryBestSize",
"QueryExtension",
"ListExtensions",
"ChangeKeyboardMapping",
"GetKeyboardMapping",
"ChangeKeyboardControl",
"GetKeyboardControl",
"Bell",
"ChangePointerControl",
"GetPointerControl",
"SetScreenSaver",
"GetScreenSaver",
"ChangeHosts",
"ListHosts",
"SetAccessControl",
"SetCloseDownMode",
"KillClient",
"RotateProperties",
"ForceScreenSaver",
"SetPointerMapping",
"GetPointerMapping",
"SetModifierMapping",
"GetModifierMapping",
"major 120",
"major 121",
"major 122",
"major 123",
"major 124",
"major 125",
"major 126",
"NoOperation",
};
static const char *labelEvent[] = {
"error",
"reply",
"KeyPress",
"KeyRelease",
"ButtonPress",
"ButtonRelease",
"MotionNotify",
"EnterNotify",
"LeaveNotify",
"FocusIn",
"FocusOut",
"KeymapNotify",
"Expose",
"GraphicsExpose",
"NoExpose",
"VisibilityNotify",
"CreateNotify",
"DestroyNotify",
"UnmapNotify",
"MapNotify",
"MapRequest",
"ReparentNotify",
"ConfigureNotify",
"ConfigureRequest",
"GravityNotify",
"ResizeRequest",
"CirculateNotify",
"CirculateRequest",
"PropertyNotify",
"SelectionClear",
"SelectionRequest",
"SelectionNotify",
"ColormapNotify",
"ClientMessage",
"MappingNotify",
};
static const char *labelSendEvent[] = {
"",
" (from SendEvent)",
};
/*
*
* TODO: what exactly does this, what happens if we leave stuff out?
*
*/
void manage_window(xcb_property_handlers_t *prophs, xcb_connection_t *c, xcb_window_t window, window_attributes_t wa)
{
printf("managing window.\n");
xcb_drawable_t d = { window };
xcb_get_geometry_cookie_t geomc;
xcb_get_geometry_reply_t *geom;
xcb_get_window_attributes_reply_t *attr = 0;
if(wa.tag == TAG_COOKIE)
{
attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0);
if(!attr)
return;
if(attr->map_state != XCB_MAP_STATE_VIEWABLE)
{
printf("Window 0x%08x is not mapped. Ignoring.\n", window);
free(attr);
return;
}
wa.tag = TAG_VALUE;
wa.u.override_redirect = attr->override_redirect;
}
if(!wa.u.override_redirect && table_get(byChild, window))
{
printf("Window 0x%08x already managed. Ignoring.\n", window);
free(attr);
return;
}
if(wa.u.override_redirect)
{
printf("Window 0x%08x has override-redirect set. Ignoring.\n", window);
free(attr);
return;
}
geomc = xcb_get_geometry(c, d);
if(!attr)
{
wa.tag = TAG_COOKIE;
wa.u.cookie = xcb_get_window_attributes(c, window);
attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0);
}
geom = xcb_get_geometry_reply(c, geomc, 0);
if(attr && geom)
{
reparent_window(c, window, attr->visual, geom->root, geom->depth, geom->x, geom->y, geom->width, geom->height);
xcb_property_changed(prophs, XCB_PROPERTY_NEW_VALUE, window, WM_NAME);
}
free(attr);
free(geom);
}
static int addClientWindow(xcb_window_t child, xcb_window_t parent, xcb_gcontext_t titlegc)
{
int success;
client_window_t *record = malloc(sizeof(client_window_t));
assert(record);
record->child = child;
record->parent = parent;
record->name_len = 0;
record->name = 0;
record->titlegc = titlegc;
success = table_put(byParent, parent, record) &&
table_put(byChild, child, record);
assert(success);
return 1;
}
void reparent_window(xcb_connection_t *conn, xcb_window_t child,
xcb_visualid_t visual, xcb_window_t root, uint8_t depth,
int16_t x, int16_t y, uint16_t width, uint16_t height)
{
xcb_window_t window;
xcb_drawable_t drawable;
uint32_t mask = 0;
uint32_t values[3];
xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
xcb_gcontext_t titlegc;
window = xcb_generate_id(conn);
/* TODO: what do these mean? */
mask |= XCB_CW_BACK_PIXEL;
values[0] = root_screen->white_pixel;
mask |= XCB_CW_OVERRIDE_REDIRECT;
values[1] = 1;
mask |= XCB_CW_EVENT_MASK;
values[2] = XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
| XCB_EVENT_MASK_EXPOSURE /* | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW */;
printf("Reparenting 0x%08x under 0x%08x.\n", child, window);
/* Yo dawg, I heard you like windows, so I create a window around your window… */
xcb_create_window(conn,
depth,
window,
root,
x,
y,
width + LEFT + RIGHT,
height + TOP + BOTTOM,
/* border_width */ 0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
visual,
mask,
values);
xcb_change_save_set(conn, XCB_SET_MODE_INSERT, child);
/* Map the window on the screen (= make it visible) */
xcb_map_window(conn, window);
titlegc = xcb_generate_id(conn);
mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
#if 0
values[0] = root_screen->black_pixel;
values[1] = root_screen->white_pixel;
#endif
xcb_colormap_t colormapId = xcb_generate_id (conn);
xcb_create_colormap (conn, XCB_COLORMAP_ALLOC_NONE, colormapId, window, root_screen->root_visual );
xcb_alloc_color_reply_t *reply = xcb_alloc_color_reply (conn,
xcb_alloc_color (conn,
colormapId,
0,
0,
65535),
NULL );
if (!reply) {
printf("color fail\n");
return;
}
xcb_font_t font = xcb_generate_id (conn);
char *font_name = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso8859-1";
xcb_void_cookie_t fontCookie = xcb_open_font_checked (conn,
font,
strlen (font_name),
font_name );
values[0] = root_screen->black_pixel;
values[1] = reply->pixel;
values[2] = font;
drawable = window;
/* Create a new graphics context */
xcb_create_gc(conn, titlegc, drawable, mask, values);
/* Change color to something different, just to test */
values[1] = root_screen->white_pixel;
xcb_change_gc(conn, titlegc, mask, values);
/* TODO: utf8? */
char *label = "i3 rocks :>";
xcb_void_cookie_t textCookie = xcb_image_text_8_checked (conn,
strlen (label),
window,
titlegc,
2, 15,
label );
/* add the title context as a child for the window */
addClientWindow(child, window, titlegc);
/* Moves the original window into the new frame we've created for it */
xcb_reparent_window(conn, child, window, LEFT - 1, TOP - 1);
/* We are interested in property changes */
mask = XCB_CW_EVENT_MASK;
values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_change_window_attributes(conn, child, mask, values);
xcb_flush(conn);
}
int format_event(xcb_generic_event_t *e)
{
uint8_t sendEvent;
uint16_t seqnum;
sendEvent = (e->response_type & 0x80) ? 1 : 0;
e->response_type &= ~0x80;
seqnum = *((uint16_t *) e + 1);
switch(e->response_type)
{
case 0:
printf("Error %s on seqnum %d (%s).\n",
labelError[*((uint8_t *) e + 1)],
seqnum,
labelRequest[*((uint8_t *) e + 10)]);
break;
default:
printf("Event %s following seqnum %d%s.\n",
labelEvent[e->response_type],
seqnum,
labelSendEvent[sendEvent]);
break;
case XCB_KEYMAP_NOTIFY:
printf("Event %s%s.\n",
labelEvent[e->response_type],
labelSendEvent[sendEvent]);
break;
}
fflush(stdout);
return 1;
}
static int handleEvent(void *ignored, xcb_connection_t *c, xcb_generic_event_t *e)
{
return format_event(e);
}
static void redrawWindow(xcb_connection_t *c, client_window_t *client)
{
printf("redrawing window.\n");
xcb_drawable_t d = { client->parent };
if(!client->name_len)
return;
xcb_clear_area(c, 0, d, 0, 0, 0, 0);
xcb_image_text_8(c, client->name_len, d, client->titlegc,
LEFT - 1, TOP - 4, client->name);
xcb_flush(c);
}
int handle_map_notify_event(void *prophs, xcb_connection_t *c, xcb_map_notify_event_t *e)
{
window_attributes_t wa = { TAG_VALUE };
wa.u.override_redirect = e->override_redirect;
printf("MapNotify for 0x%08x.\n", e->window);
manage_window(prophs, c, e->window, wa);
return 1;
}
int handle_unmap_notify_event(void *data, xcb_connection_t *c, xcb_unmap_notify_event_t *e)
{
client_window_t *client = table_remove(byChild, e->event);
xcb_window_t root;
printf("UnmapNotify for 0x%08x (received from 0x%08x): ", e->window, e->event);
if(!client)
{
printf("not a managed window. Ignoring.\n");
return 0;
}
root = xcb_setup_roots_iterator(xcb_get_setup(c)).data->root;
printf("child of 0x%08x.\n", client->parent);
xcb_reparent_window(c, client->child, root, 0, 0);
xcb_destroy_window(c, client->parent);
xcb_flush(c);
table_remove(byParent, client->parent);
free(client);
return 1;
}
static int handleExposeEvent(void *data, xcb_connection_t *c, xcb_expose_event_t *e)
{
printf("exposeevent\n");
client_window_t *client = table_get(byParent, e->window);
if(!client || e->count != 0)
return 1;
redrawWindow(c, client);
return 1;
}
void manage_existing_windows(xcb_connection_t *c, xcb_property_handlers_t *prophs, xcb_window_t root)
{
xcb_query_tree_cookie_t wintree;
xcb_query_tree_reply_t *rep;
int i, len;
xcb_window_t *children;
xcb_get_window_attributes_cookie_t *cookies;
wintree = xcb_query_tree(c, root);
rep = xcb_query_tree_reply(c, wintree, 0);
if(!rep)
return;
len = xcb_query_tree_children_length(rep);
cookies = malloc(len * sizeof(*cookies));
if(!cookies)
{
free(rep);
return;
}
children = xcb_query_tree_children(rep);
for(i = 0; i < len; ++i)
cookies[i] = xcb_get_window_attributes(c, children[i]);
for(i = 0; i < len; ++i)
{
window_attributes_t wa = { TAG_COOKIE, { cookies[i] } };
manage_window(prophs, c, children[i], wa);
}
free(rep);
}
int main() {
xcb_connection_t *c;
xcb_event_handlers_t evenths;
xcb_property_handlers_t prophs;
xcb_window_t root;
int screens;
memset(&evenths, 0, sizeof(xcb_event_handlers_t));
memset(&prophs, 0, sizeof(xcb_property_handlers_t));
byChild = alloc_table();
byParent = alloc_table();
c = xcb_connect(NULL, &screens);
printf("x screen is %d\n", screens);
/* Font loading */
char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso8859-1";
xcb_list_fonts_with_info_cookie_t cookie = xcb_list_fonts_with_info(c, 1, strlen(pattern), pattern);
xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(c, cookie, NULL);
if (!reply) {
printf("Could not load font\n");
return 1;
}
myfont.name = strdup(xcb_list_fonts_with_info_name(reply));
myfont.height = reply->font_ascent + reply->font_descent;
xcb_event_handlers_init(c, &evenths);
int i;
for(i = 2; i < 128; ++i)
xcb_event_set_handler(&evenths, i, handleEvent, 0);
for(i = 0; i < 256; ++i)
xcb_event_set_error_handler(&evenths, i, (xcb_generic_error_handler_t) handleEvent, 0);
/* Expose = an Application should redraw itself. That is, we have to redraw our
* contents (= Bars) */
xcb_event_set_expose_handler(&evenths, handleExposeEvent, 0);
xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, 0);
xcb_property_handlers_init(&prophs, &evenths);
xcb_event_set_map_notify_handler(&evenths, handle_map_notify_event, &prophs);
root = xcb_aux_get_screen(c, screens)->root;
{
uint32_t mask = XCB_CW_EVENT_MASK;
uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE };
xcb_change_window_attributes(c, root, mask, values);
}
xcb_flush(c);
manage_existing_windows(c, &prophs, root);
xcb_event_wait_for_event_loop(&evenths);
}