X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/0d22715b0a30380c118f6eb8c552bed15ba2417d..e5a65b68db96144227d1f1efb98fce40c749ea02:/dmenu.c diff --git a/dmenu.c b/dmenu.c index 15737ca..fb92462 100644 --- a/dmenu.c +++ b/dmenu.c @@ -1,6 +1,7 @@ /* See LICENSE file for copyright and license details. */ #include #include +#include #include #include #include @@ -35,6 +36,7 @@ struct item { char *text; struct item *left, *right; int out; + double distance; }; static char text[BUFSIZ] = ""; @@ -245,9 +247,94 @@ grabkeyboard(void) die("cannot grab keyboard"); } +int +compare_distance(const void *a, const void *b) +{ + struct item *da = *(struct item **) a; + struct item *db = *(struct item **) b; + + if (!db) + return 1; + if (!da) + return -1; + + return da->distance == db->distance ? 0 : da->distance < db->distance ? -1 : 1; +} + +void +fuzzymatch(void) +{ + /* bang - we have so much memory */ + struct item *it; + struct item **fuzzymatches = NULL; + char c; + int number_of_matches = 0, i, pidx, sidx, eidx; + int text_len = strlen(text), itext_len; + + matches = matchend = NULL; + + /* walk through all items */ + for (it = items; it && it->text; it++) { + if (text_len) { + itext_len = strlen(it->text); + pidx = 0; /* pointer */ + sidx = eidx = -1; /* start of match, end of match */ + /* walk through item text */ + for (i = 0; i < itext_len && (c = it->text[i]); i++) { + /* fuzzy match pattern */ + if (!fstrncmp(&text[pidx], &c, 1)) { + if(sidx == -1) + sidx = i; + pidx++; + if (pidx == text_len) { + eidx = i; + break; + } + } + } + /* build list of matches */ + if (eidx != -1) { + /* compute distance */ + /* add penalty if match starts late (log(sidx+2)) + * add penalty for long a match without many matching characters */ + it->distance = log(sidx + 2) + (double)(eidx - sidx - text_len); + /* fprintf(stderr, "distance %s %f\n", it->text, it->distance); */ + appenditem(it, &matches, &matchend); + number_of_matches++; + } + } else { + appenditem(it, &matches, &matchend); + } + } + + if (number_of_matches) { + /* initialize array with matches */ + if (!(fuzzymatches = realloc(fuzzymatches, number_of_matches * sizeof(struct item*)))) + die("cannot realloc %u bytes:", number_of_matches * sizeof(struct item*)); + for (i = 0, it = matches; it && i < number_of_matches; i++, it = it->right) { + fuzzymatches[i] = it; + } + /* sort matches according to distance */ + qsort(fuzzymatches, number_of_matches, sizeof(struct item*), compare_distance); + /* rebuild list of matches */ + matches = matchend = NULL; + for (i = 0, it = fuzzymatches[i]; i < number_of_matches && it && \ + it->text; i++, it = fuzzymatches[i]) { + appenditem(it, &matches, &matchend); + } + free(fuzzymatches); + } + curr = sel = matches; + calcoffsets(); +} + static void match(void) { + if (fuzzy) { + fuzzymatch(); + return; + } static char **tokv = NULL; static int tokn = 0; @@ -546,6 +633,119 @@ draw: drawmenu(); } +static void +buttonpress(XEvent *e) +{ + struct item *item; + XButtonPressedEvent *ev = &e->xbutton; + int x = 0, y = 0, h = bh, w; + + if (ev->window != win) + return; + + /* right-click: exit */ + if (ev->button == Button3) + exit(1); + + if (prompt && *prompt) + x += promptw; + + /* input field */ + w = (lines > 0 || !matches) ? mw - x : inputw; + + /* left-click on input: clear input, + * NOTE: if there is no left-arrow the space for < is reserved so + * add that to the input width */ + if (ev->button == Button1 && + ((lines <= 0 && ev->x >= 0 && ev->x <= x + w + + ((!prev || !curr->left) ? TEXTW("<") : 0)) || + (lines > 0 && ev->y >= y && ev->y <= y + h))) { + insert(NULL, -cursor); + drawmenu(); + return; + } + /* middle-mouse click: paste selection */ + if (ev->button == Button2) { + XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY, + utf8, utf8, win, CurrentTime); + drawmenu(); + return; + } + /* scroll up */ + if (ev->button == Button4 && prev) { + sel = curr = prev; + calcoffsets(); + drawmenu(); + return; + } + /* scroll down */ + if (ev->button == Button5 && next) { + sel = curr = next; + calcoffsets(); + drawmenu(); + return; + } + if (ev->button != Button1) + return; + if (ev->state & ~ControlMask) + return; + if (lines > 0) { + /* vertical list: (ctrl)left-click on item */ + w = mw - x; + for (item = curr; item != next; item = item->right) { + y += h; + if (ev->y >= y && ev->y <= (y + h)) { + puts(item->text); + if (!(ev->state & ControlMask)) + exit(0); + sel = item; + if (sel) { + sel->out = 1; + drawmenu(); + } + return; + } + } + } else if (matches) { + /* left-click on left arrow */ + x += inputw; + w = TEXTW("<"); + if (prev && curr->left) { + if (ev->x >= x && ev->x <= x + w) { + sel = curr = prev; + calcoffsets(); + drawmenu(); + return; + } + } + /* horizontal list: (ctrl)left-click on item */ + for (item = curr; item != next; item = item->right) { + x += w; + w = MIN(TEXTW(item->text), mw - x - TEXTW(">")); + if (ev->x >= x && ev->x <= x + w) { + puts(item->text); + if (!(ev->state & ControlMask)) + exit(0); + sel = item; + if (sel) { + sel->out = 1; + drawmenu(); + } + return; + } + } + /* left-click on right arrow */ + w = TEXTW(">"); + x = mw - w; + if (next && ev->x >= x && ev->x <= x + w) { + sel = curr = next; + calcoffsets(); + drawmenu(); + return; + } + } +} + static void paste(void) { @@ -600,6 +800,9 @@ run(void) break; cleanup(); exit(1); + case ButtonPress: + buttonpress(&ev); + break; case Expose: if (ev.xexpose.count == 0) drw_map(drw, win, 0, 0, mw, mh); @@ -719,7 +922,7 @@ setup(void) swa.background_pixel = 0; swa.border_pixel = 0; swa.colormap = cmap; - swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; + swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask | ButtonPressMask; win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0, depth, CopyFromParent, visual, CWOverrideRedirect | CWBackPixel | CWBorderPixel | CWColormap | CWEventMask, &swa); @@ -770,6 +973,8 @@ main(int argc, char *argv[]) topbar = 0; else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */ fast = 1; + else if (!strcmp(argv[i], "-F")) /* grabs keyboard before reading stdin */ + /* always fuzzy */; // fuzzy = 0; else if (!strcmp(argv[i], "-c")) /* centers dmenu on screen */ centered = 1; else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */