Improve selecthover() function, add markhover() function

docs/docs.md

@@ -1061,6 +1061,8 @@ bind:
   - Switch between Normal mode and Insert mode
 - `selecthover`
   - Output the item clicked on
+- `markhover`
+  - Mark the item clicked on
 - `screenshot`
   - Take a screenshot of spmenu
 

libs/arg.c

@@ -619,11 +619,61 @@ void switchmode(Arg *arg) {
     drawmenu();
 }
 
+/* This function is basically a copy of the selectitem function.
+ * The only difference is "selectitem" was replaced with "mouseitem" and tx.text output
+ * was removed.
+ */
 void selecthover(Arg *arg) {
-    puts(mouseitem->text);
+    char *selection;
+
+    if (printindex && mouseitem && arg->i) {
+        fprintf(stdout, "%d\n", mouseitem->index);
+        cleanup();
         exit(0);
     }
 
+    selection = mouseitem->text;
+
+    for (int i = 0; i < sel_size; i++) {
+        if (sel_index[i] != -1 && (!mouseitem || mouseitem->index != sel_index[i])) {
+            puts(items[sel_index[i]].text);
+        }
+    }
+
+    if (!selection)
+        return;
+
+    puts(selection);
+    savehistory(selection);
+
+    cleanup();
+    exit(0);
+}
+
+void markhover(Arg *arg) {
+    if (!mark) return;
+    if (mouseitem && is_selected(mouseitem->index)) {
+        for (int i = 0; i < sel_size; i++) {
+            if (sel_index[i] == mouseitem->index) {
+                sel_index[i] = -1;
+            }
+        }
+    } else {
+        for (int i = 0; i < sel_size; i++) {
+            if (sel_index[i] == -1) {
+                sel_index[i] = mouseitem->index;
+                return;
+            }
+        }
+
+        sel_size++;
+        sel_index = realloc(sel_index, (sel_size + 1) * sizeof(int));
+        sel_index[sel_size - 1] = mouseitem->index;
+    }
+
+    drawmenu();
+}
+
 void screenshot(Arg *arg) {
     char *file = NULL;
     char *home = NULL;

libs/arg.h

@@ -77,3 +77,4 @@ static void toggleimg(Arg *arg);
 
 /* hover */
 static void selecthover(Arg *arg);
+static void markhover(Arg *arg);

libs/conf/config.h

@@ -396,6 +396,7 @@ static FuncList fl[] = {
     { "setlineheight",    setlineheight },
     { "switchmode",       switchmode },
     { "selecthover",      selecthover },
+    { "markhover",        markhover },
     { "spawn",            spawn },
 };
 

spmenu.1

@@ -1975,6 +1975,12 @@ Switch between Normal mode and Insert mode
 Output the item clicked on
 .RE
 .IP \[bu] 2
+\f[V]markhover\f[R]
+.RS 2
+.IP \[bu] 2
+Mark the item clicked on
+.RE
+.IP \[bu] 2
 \f[V]screenshot\f[R]
 .RS 2
 .IP \[bu] 2