Completed refresh-execp

AUTHORS

@@ -35,6 +35,7 @@ Contributors:
   heisenbug (https://gitlab.com/heisenbugh) : taskbar button tinting with icon color
   Fabian Carlström : taskbar sort order by app name
   Chris Billington (https://gitlab.com/chrisjbillington) : panel struts pivoting
+  Arash Rohani <rohani.arash@pm.me> : helped with execp refresh
 
 Translations:
   Bosnian:

CMakeLists.txt

@@ -290,6 +290,7 @@ add_executable(tint2-send src/tint2-send/tint2-send.c)
 target_link_libraries(tint2-send ${X11_LIBRARIES})
 
 install( TARGETS tint2 DESTINATION bin )
+install( TARGETS tint2-send DESTINATION bin )
 install( FILES tint2.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps )
 install( FILES tint2.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )
 install( FILES themes/tint2rc DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/xdg/tint2 )

doc/manual.html

@@ -595,6 +595,7 @@ panel_size = 94% 30
 <h3 id="executor">Executor<a name="executor" href="#executor" class="md2man-permalink" title="permalink"></a></h3>
 <ul>
 <li><p><code>execp = new</code> : Begins the configuration of a new executor plugin. Multiple such plugins are supported; just use multiple <code>E</code>s in <code>panel_items</code>. <em>(since 0.12.4)</em></p></li>
+<li><p><code>execp_name = text</code> : A name that can be used with <code>tint2-send refresh-execp</code> to re-execute the command.</p></li>
 <li><p><code>execp_command = text</code> : Command to execute. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_interval = integer</code> : The command is executed again after <code>execp_interval</code> seconds from the moment it exits. If zero, the command is executed only once. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_continuous = integer</code> : If non-zero, the last <code>execp_continuous</code> lines from the output of the command are displayed, every <code>execp_continuous</code> lines; this is useful for showing the output of commands that run indefinitely, such as <code>ping 127.0.0.1</code>. If zero, the output of the command is displayed after it finishes executing. <em>(since 0.12.4)</em></p></li>

doc/tint2.1

@@ -720,6 +720,8 @@ To hide the clock, comment \fB\fCtime1_format\fR and \fB\fCtime2_format\fR\&.
 .IP \(bu 2
 \fB\fCexecp = new\fR : Begins the configuration of a new executor plugin. Multiple such plugins are supported; just use multiple \fB\fCE\fRs in \fB\fCpanel_items\fR\&. \fI(since 0.12.4)\fP
 .IP \(bu 2
+\fB\fCexecp_name = text\fR : A name that can be used with \fB\fCtint2\-send refresh\-execp\fR to re\-execute the command.
+.IP \(bu 2
 \fB\fCexecp_command = text\fR : Command to execute. \fI(since 0.12.4)\fP
 .IP \(bu 2
 \fB\fCexecp_interval = integer\fR : The command is executed again after \fB\fCexecp_interval\fR seconds from the moment it exits. If zero, the command is executed only once. \fI(since 0.12.4)\fP

doc/tint2.html

@@ -314,6 +314,7 @@ panel_size = 94% 30
 <h3 id="executor">Executor<a name="executor" href="#executor" class="md2man-permalink" title="permalink"></a></h3>
 <ul>
 <li><p><code>execp = new</code> : Begins the configuration of a new executor plugin. Multiple such plugins are supported; just use multiple <code>E</code>s in <code>panel_items</code>. <em>(since 0.12.4)</em></p></li>
+<li><p><code>execp_name = text</code> : A name that can be used with <code>tint2-send refresh-execp</code> to re-execute the command.</p></li>
 <li><p><code>execp_command = text</code> : Command to execute. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_interval = integer</code> : The command is executed again after <code>execp_interval</code> seconds from the moment it exits. If zero, the command is executed only once. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_continuous = integer</code> : If non-zero, the last <code>execp_continuous</code> lines from the output of the command are displayed, every <code>execp_continuous</code> lines; this is useful for showing the output of commands that run indefinitely, such as <code>ping 127.0.0.1</code>. If zero, the output of the command is displayed after it finishes executing. <em>(since 0.12.4)</em></p></li>

doc/tint2.md

@@ -593,6 +593,8 @@ The action semantics:
 
   * `execp = new` : Begins the configuration of a new executor plugin. Multiple such plugins are supported; just use multiple `E`s in `panel_items`. *(since 0.12.4)*
 
+  * `execp_name = text` : A name that can be used with `tint2-send refresh-execp` to re-execute the command.
+
   * `execp_command = text` : Command to execute. *(since 0.12.4)*
 
   * `execp_interval = integer` : The command is executed again after `execp_interval` seconds from the moment it exits. If zero, the command is executed only once. *(since 0.12.4)*

src/config.c

@@ -683,6 +683,14 @@ void add_entry(char *key, char *value)
     /* Execp */
     else if (strcmp(key, "execp") == 0) {
         panel_config.execp_list = g_list_append(panel_config.execp_list, create_execp());
+    } else if (strcmp(key, "execp_name") == 0) {
+        Execp *execp = get_or_create_last_execp();
+        execp->backend->name[0] = 0;
+        if (strlen(value) > sizeof(execp->backend->name) - 1)
+            fprintf(stderr, RED "tint2: execp_name cannot be more than %ld bytes: '%s'" RESET "\n",
+                    sizeof(execp->backend->name) - 1, value);
+        else if (strlen(value) > 0)
+            snprintf(execp->backend->name, sizeof(execp->backend->name), value);
     } else if (strcmp(key, "execp_command") == 0) {
         Execp *execp = get_or_create_last_execp();
         free_and_null(execp->backend->command);

src/execplugin/execplugin.h

@@ -20,6 +20,7 @@ extern bool debug_executors;
 
 typedef struct ExecpBackend {
     // Config:
+    char name[21];
     // Command to execute at a specified interval
     char *command;
     // Interval in seconds
@@ -154,4 +155,6 @@ void execp_default_font_changed();
 
 void handle_execp_events();
 
+void execp_force_update(Execp *execp);
+
 #endif // EXECPLUGIN_H

src/main.c

@@ -32,7 +32,6 @@
 #include <X11/extensions/Xdamage.h>
 #include <Imlib2.h>
 #include <signal.h>
-#include <unistd.h>
 #include <sys/types.h>
 #include <pwd.h>
 #include <time.h>
@@ -545,6 +544,15 @@ void handle_x_event(XEvent *e)
             handle_dnd_position(&e->xclient);
         } else if (e->xclient.message_type == server.atom.XdndDrop) {
             handle_dnd_drop(&e->xclient);
+        } else if (e->xclient.message_type == server.atom.TINT2_REFRESH_EXECP &&
+            e->xclient.format == 8) {
+            char name[sizeof(e->xclient.data.b) + 1] = {};
+            memcpy(name, e->xclient.data.b, sizeof(e->xclient.data.b));
+            for (GList *l = panel_config.execp_list; l; l = l->next) {
+                Execp *execp = (Execp *)l->data;
+                if (strncmp(name, execp->backend->name, sizeof(execp->backend->name) - 1) == 0)
+                    execp_force_update(execp);
+            }
         }
         break;
     }

src/tint2-send/Makefile

@@ -1,12 +0,0 @@
-ifeq ($(PREFIX),)
-    PREFIX := /usr/local
-endif
-
-tint2-send: tint2-send.c
-	$(CC) tint2-send.c -lX11 -o tint2-send
-
-install: tint2-send
-	install -m 755 tint2-send $(DESTDIR)/$(PREFIX)/bin/
-
-clean:
-	rm -f tint2-send

src/tint2-send/tint2-send.c

@@ -45,8 +45,8 @@ int is_tint2(Window window)
     XWindowAttributes attr = {};
     if (!XGetWindowAttributes(display, window, &attr))
         return 0;
-    if (attr.map_state != IsViewable)
-        return 0;
+    // if (attr.map_state != IsViewable)
+    //     return 0;
 
     char *wm_class = get_property(window, XA_STRING, "WM_NAME");
     if (!wm_class) {
@@ -60,11 +60,10 @@ int is_tint2(Window window)
     return class_match;
 }
 
-void handle_tint2_window(Window window, void *arg)
+void handle_tint2_window(Window window, char *action, char **args)
 {
     if (!is_tint2(window))
         return;
-    char *action = (char *)arg;
     if (strcmp(action, "show") == 0) {
         fprintf(stderr, "Showing tint2 window: %lx\n", window);
         XEvent event = {};
@@ -85,16 +84,40 @@ void handle_tint2_window(Window window, void *arg)
         event.xcrossing.same_screen = True;
         XSendEvent(display, window, False, 0, &event);
         XFlush(display);
+    } else if (strcmp(action, "refresh-execp") == 0) {
+        XEvent event = {};
+        char *name = args[0];
+        if (!name) {
+            fprintf(stderr, "Error: missing execp name\n");
+            return;
+        }
+        if (!name[0]) {
+            fprintf(stderr, "Error: empty execp name\n");
+            return;
+        }
+        if (strlen(name) > sizeof(event.xclient.data.b)) {
+            fprintf(stderr, "Error: execp name bigger than %ld bytes\n", sizeof(event.xclient.data.b));
+            return;
+        }
+        fprintf(stderr, "Refreshing execp '%s' for window: %lx\n", name, window);
+        event.xclient.type = ClientMessage;
+        event.xclient.window = window;
+        event.xclient.send_event = True;
+        event.xclient.message_type = XInternAtom(display, "_TINT2_REFRESH_EXECP", False);
+        event.xclient.format = 8;
+        strncpy(event.xclient.data.b, name, sizeof(event.xclient.data.b));
+        XSendEvent(display, window, False, 0, &event);
+        XFlush(display);
     } else {
         fprintf(stderr, "Error: unknown action %s\n", action);
     }
 }
 
-typedef void window_callback_t(Window window, void *arg);
+typedef void window_callback_t(Window window, char *action, char **args);
 
-void walk_windows(Window node, window_callback_t *callback, void *arg)
+void walk_windows(Window node, window_callback_t *callback, char *action, char **args)
 {
-    callback(node, arg);
+    callback(node, action, args);
     Window root = 0;
     Window parent = 0;
     Window *children = 0;
@@ -104,7 +127,7 @@ void walk_windows(Window node, window_callback_t *callback, void *arg)
         return;
     }
     for (unsigned int i = 0; i < nchildren; i++) {
-        walk_windows(children[i], callback, arg);
+        walk_windows(children[i], callback, action, args);
     }
 }
 
@@ -118,11 +141,12 @@ int main(int argc, char **argv)
 
     argc--, argv++;
     if (!argc) {
-        fprintf(stderr, "Usage: tint2-show [show|hide]\n");
+        fprintf(stderr, "Usage: tint2-send [show|hide|refresh-execp]\n");
         exit(1);
     }
     char *action = argv[0];
-    walk_windows(DefaultRootWindow(display), handle_tint2_window, action);
+    char **args = argv + 1;
+    walk_windows(DefaultRootWindow(display), handle_tint2_window, action, args);
 
     return 0;
 }

src/tint2conf/properties.c

@@ -4271,6 +4271,23 @@ void create_execp(GtkWidget *notebook, int i)
     gtk_table_set_col_spacings(GTK_TABLE(table), COL_SPACING);
     row = 0, col = 2;
 
+    label = gtk_label_new(_("Name"));
+    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+    gtk_widget_show(label);
+    gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    executor->execp_name = gtk_entry_new();
+    gtk_widget_show(executor->execp_name);
+    gtk_entry_set_width_chars(GTK_ENTRY(executor->execp_name), 20);
+    gtk_entry_set_max_length(GTK_ENTRY(executor->execp_name), 20);
+    gtk_table_attach(GTK_TABLE(table), executor->execp_name, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+    gtk_widget_set_tooltip_text(executor->execp_name,
+                                _("Specifies a name that can be used with `tint2-send refresh-execp` to re-execute "
+                                  "the command."));
+
+    row++, col = 2;
     label = gtk_label_new(_("Command"));
     gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
     gtk_widget_show(label);

src/tint2conf/properties.h

@@ -132,6 +132,7 @@ typedef struct Executor {
     GtkWidget *container;
     GtkWidget *page_execp;
     GtkWidget *page_label;
+    GtkWidget *execp_name;
     GtkWidget *execp_command, *execp_interval, *execp_has_icon, *execp_cache_icon, *execp_show_tooltip;
     GtkWidget *execp_continuous, *execp_markup, *execp_tooltip, *execp_monitor;
     GtkWidget *execp_left_command, *execp_right_command;

src/tint2conf/properties_rw.c

@@ -857,6 +857,7 @@ void config_write_execp(FILE *fp)
         Executor *executor = &g_array_index(executors, Executor, i);
 
         fprintf(fp, "execp = new\n");
+        fprintf(fp, "execp_name = %s\n", gtk_entry_get_text(GTK_ENTRY(executor->execp_name)));
         fprintf(fp, "execp_command = %s\n", gtk_entry_get_text(GTK_ENTRY(executor->execp_command)));
         fprintf(fp, "execp_interval = %d\n", (int)gtk_spin_button_get_value(GTK_SPIN_BUTTON(executor->execp_interval)));
         fprintf(fp,
@@ -1962,6 +1963,8 @@ void add_entry(char *key, char *value)
     /* Executor */
     else if (strcmp(key, "execp") == 0) {
         execp_create_new();
+    } else if (strcmp(key, "execp_name") == 0) {
+        gtk_entry_set_text(GTK_ENTRY(execp_get_last()->execp_name), value);
     } else if (strcmp(key, "execp_command") == 0) {
         gtk_entry_set_text(GTK_ENTRY(execp_get_last()->execp_command), value);
     } else if (strcmp(key, "execp_interval") == 0) {

src/util/server.c

@@ -122,6 +122,9 @@ void server_init_atoms()
     server.atom.XdndActionCopy = XInternAtom(server.display, "XdndActionCopy", False);
     server.atom.XdndFinished = XInternAtom(server.display, "XdndFinished", False);
     server.atom.TARGETS = XInternAtom(server.display, "TARGETS", False);
+
+    // tint2 atoms
+    server.atom.TINT2_REFRESH_EXECP = XInternAtom(server.display, "_TINT2_REFRESH_EXECP", False);
 }
 
 const char *GetAtomName(Display *disp, Atom a)

src/util/server.h

@@ -91,6 +91,7 @@ typedef struct Global_atom {
     Atom XdndActionCopy;
     Atom XdndFinished;
     Atom TARGETS;
+    Atom TINT2_REFRESH_EXECP;
 } Global_atom;
 
 typedef struct Property {