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dwm-fsignal-6.2.diff - sites - public wiki contents of suckless.org |
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dwm-fsignal-6.2.diff (3145B) |
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1 From e7f523c898983c84ba3102675662dc33cbb5573e Mon Sep 17 00:00:00 2001 |
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2 From: Nihal Jere <[email protected]> |
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3 Date: Sat, 21 Mar 2020 15:50:00 -0500 |
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4 Subject: [PATCH] fsignal |
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5 |
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6 --- |
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7 config.def.h | 7 +++++++ |
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8 dwm.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++-- |
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9 2 files changed, 59 insertions(+), 2 deletions(-) |
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10 |
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11 diff --git a/config.def.h b/config.def.h |
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12 index 1c0b587..8d2e6e9 100644 |
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13 --- a/config.def.h |
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14 +++ b/config.def.h |
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15 @@ -113,3 +113,10 @@ static Button buttons[] = { |
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16 { ClkTagBar, MODKEY, Button3, togglet… |
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17 }; |
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18 |
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19 +/* signal definitions */ |
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20 +/* signum must be greater than 0 */ |
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21 +/* trigger signals using `xsetroot -name "fsignal:<signum>"` */ |
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22 +static Signal signals[] = { |
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23 + /* signum function argument */ |
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24 + { 1, setlayout, {.v = 0} }, |
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25 +}; |
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26 diff --git a/dwm.c b/dwm.c |
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27 index 4465af1..db2ee08 100644 |
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28 --- a/dwm.c |
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29 +++ b/dwm.c |
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30 @@ -106,6 +106,12 @@ typedef struct { |
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31 const Arg arg; |
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32 } Key; |
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33 |
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34 +typedef struct { |
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35 + unsigned int signum; |
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36 + void (*func)(const Arg *); |
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37 + const Arg arg; |
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38 +} Signal; |
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39 + |
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40 typedef struct { |
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41 const char *symbol; |
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42 void (*arrange)(Monitor *); |
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43 @@ -176,6 +182,7 @@ static void grabbuttons(Client *c, int focused); |
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44 static void grabkeys(void); |
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45 static void incnmaster(const Arg *arg); |
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46 static void keypress(XEvent *e); |
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47 +static int fake_signal(void); |
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48 static void killclient(const Arg *arg); |
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49 static void manage(Window w, XWindowAttributes *wa); |
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50 static void mappingnotify(XEvent *e); |
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51 @@ -998,6 +1005,47 @@ keypress(XEvent *e) |
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52 keys[i].func(&(keys[i].arg)); |
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53 } |
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54 |
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55 +int |
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56 +fake_signal(void) |
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57 +{ |
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58 + char fsignal[256]; |
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59 + char indicator[9] = "fsignal:"; |
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60 + char str_signum[16]; |
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61 + int i, v, signum; |
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62 + size_t len_fsignal, len_indicator = strlen(indicator); |
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63 + |
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64 + // Get root name property |
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65 + if (gettextprop(root, XA_WM_NAME, fsignal, sizeof(fsignal))) { |
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66 + len_fsignal = strlen(fsignal); |
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67 + |
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68 + // Check if this is indeed a fake signal |
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69 + if (len_indicator > len_fsignal ? 0 : strncmp(indicator… |
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70 + memcpy(str_signum, &fsignal[len_indicator], len… |
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71 + str_signum[len_fsignal - len_indicator] = '\0'; |
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72 + |
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73 + // Convert string value into managable integer |
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74 + for (i = signum = 0; i < strlen(str_signum); i+… |
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75 + v = str_signum[i] - '0'; |
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76 + if (v >= 0 && v <= 9) { |
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77 + signum = signum * 10 + v; |
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78 + } |
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79 + } |
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80 + |
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81 + // Check if a signal was found, and if so handl… |
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82 + if (signum) |
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83 + for (i = 0; i < LENGTH(signals); i++) |
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84 + if (signum == signals[i].signum… |
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85 + signals[i].func(&(signa… |
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86 + |
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87 + // A fake signal was sent |
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88 + return 1; |
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89 + } |
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90 + } |
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91 + |
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92 + // No fake signal was sent, so proceed with update |
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93 + return 0; |
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94 +} |
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95 + |
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96 void |
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97 killclient(const Arg *arg) |
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98 { |
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99 @@ -1215,8 +1263,10 @@ propertynotify(XEvent *e) |
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100 Window trans; |
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101 XPropertyEvent *ev = &e->xproperty; |
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102 |
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103 - if ((ev->window == root) && (ev->atom == XA_WM_NAME)) |
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104 - updatestatus(); |
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105 + if ((ev->window == root) && (ev->atom == XA_WM_NAME)) { |
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106 + if (!fake_signal()) |
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107 + updatestatus(); |
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108 + } |
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109 else if (ev->state == PropertyDelete) |
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110 return; /* ignore */ |
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111 else if ((c = wintoclient(ev->window))) { |
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112 -- |
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113 2.25.1 |
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114 |
