From 1276de89741101841c64d9652e05bb380f07a18c Mon Sep 17 00:00:00 2001 From: Michael Stapelberg Date: Fri, 6 Feb 2009 17:49:45 +0100 Subject: [PATCH] Intermediate commit: Can draw some border, but still messy proof of concept code. --- data.h | 9 + mainx.c | 592 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 601 insertions(+) create mode 100644 data.h create mode 100644 mainx.c diff --git a/data.h b/data.h new file mode 100644 index 00000000..bddd201a --- /dev/null +++ b/data.h @@ -0,0 +1,9 @@ +/* + * This file defines all data structures used by i3 + * + */ + +typedef struct Font { + char *name; + int height; +} Font; diff --git a/mainx.c b/mainx.c new file mode 100644 index 00000000..74c87ff9 --- /dev/null +++ b/mainx.c @@ -0,0 +1,592 @@ +#include +#include +#include +#include + +#include + +#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); + + +} -- 2.39.5