Add screenshot keybinding.

README.md

@@ -155,6 +155,7 @@ Type `Shift-Right` to switch from Window list mode to Run mode and back.
 |`Ctrl-space`                 | Set selected item as input text. |
 |`Shift-Del`                  | Delete entry from history. |
 |`grave`                      | Toggle case sensitivity. |
+|`Alt-Shift-S`                | Take a screenshot and store this in the Pictures directory. |
 
 
 # Configuration

doc/rofi-manpage.markdown

@@ -774,6 +774,7 @@ The first two fields specify the alpha level. This determines the amount of tran
   * `Ctrl-space`: Set selected item as input text.
   * `Shift-Del`: Delete entry from history.
   * `grave`: Toggle case sensitivity.
+  * `Alt-Shift-S`: Take a screenshot and store this in the Pictures directory.
 
 To get a full list of keybindings, see `rofi -dump-xresources | grep kb-`.
 Keybindings can be modified using the configuration systems.

doc/rofi.1

@@ -1293,6 +1293,9 @@ The first two fields specify the alpha level\. This determines the amount of tra
 .IP "\(bu" 4
 \fBgrave\fR: Toggle case sensitivity\.
 .
+.IP "\(bu" 4
+\fBAlt\-Shift\-S\fR: Take a screenshot and store this in the Pictures directory\.
+.
 .IP "" 0
 .
 .P

include/keyb.h

@@ -53,6 +53,7 @@ typedef enum _KeyBindingAction
     CUSTOM_17,
     CUSTOM_18,
     CUSTOM_19,
+    SCREENSHOT,
     NUM_ABE
 } KeyBindingAction;
 

source/keyb.c

@@ -64,7 +64,7 @@ DefaultBinding bindings[NUM_ABE] =
     { .id = ROW_FIRST,               .name = "kb-row-first",               .keybinding = "Home,KP_Home"                         },
     { .id = ROW_LAST,                .name = "kb-row-last",                .keybinding = "End,KP_End"                           },
     { .id = ROW_SELECT,              .name = "kb-row-select",              .keybinding = "Control+space"                        },
-    { .id = CANCEL,                  .name = "kb-cancel",                  .keybinding = "Escape"                               },
+    { .id = CANCEL,                  .name = "kb-cancel",                  .keybinding = "Escape,Control+bracketleft"           },
     { .id = CUSTOM_1,                .name = "kb-custom-1",                .keybinding = "Alt+1"                                },
     { .id = CUSTOM_2,                .name = "kb-custom-2",                .keybinding = "Alt+2"                                },
     { .id = CUSTOM_3,                .name = "kb-custom-3",                .keybinding = "Alt+3"                                },
@@ -84,6 +84,7 @@ DefaultBinding bindings[NUM_ABE] =
     { .id = CUSTOM_18,               .name = "kb-custom-18",               .keybinding = "Alt+Shift+8"                          },
     { .id = CUSTOM_17,               .name = "kb-custom-17",               .keybinding = "Alt+Shift+7"                          },
     { .id = CUSTOM_19,               .name = "kb-custom-19",               .keybinding = "Alt+Shift+9"                          },
+    { .id = SCREENSHOT,              .name = "kb-screenshot",              .keybinding = "Alt+Shift+S"                                },
 };
 
 void setup_abe ( void )

source/rofi.c

@@ -567,6 +567,52 @@ static int locate_switcher ( KeySym key, unsigned int modstate )
     }
     return -1;
 }
+
+/**
+ * Stores a screenshot of Rofi at that point in time.
+ */
+static void menu_capture_screenshot ( void )
+{
+    int index = 0;
+    if ( surface == NULL ) {
+        // Nothing to store.
+        fprintf(stderr, "There is no rofi surface to store\n");
+        return;
+    }
+    const char *xdg_pict_dir = g_get_user_special_dir(G_USER_DIRECTORY_PICTURES);
+    if ( xdg_pict_dir == NULL ) {
+        fprintf(stderr, "XDG user picture directory is not set. Cannot store screenshot.\n");
+        return;
+    }
+    // Get current time.
+    GDateTime *now = g_date_time_new_now_local();
+    // Format filename.
+    char *timestmp = g_date_time_format(now, "rofi-%Y-%m-%d-%H:%M");
+    char *filename = g_strdup_printf("%s.png", timestmp);
+    // Build full path
+    char *fpath = g_build_filename(xdg_pict_dir, filename, NULL);
+    while(g_file_test(fpath, G_FILE_TEST_EXISTS) && index < 99) {
+        g_free(fpath);
+        g_free(filename);
+        // Try the next index.
+        index++;
+        // Format filename.
+        filename = g_strdup_printf("%s-%d.png", timestmp,index);
+        // Build full path
+        fpath = g_build_filename(xdg_pict_dir, filename, NULL);
+    }
+    fprintf(stderr, color_green"Storing screenshot %s\n"color_reset,fpath);
+    cairo_status_t status = cairo_surface_write_to_png(surface, fpath);
+    if ( status != CAIRO_STATUS_SUCCESS ) {
+        fprintf(stderr, "Failed to produce screenshot '%s', got error: '%s'\n",filename,
+                cairo_status_to_string(status));
+    }
+    g_free(fpath);
+    g_free(filename);
+    g_free(timestmp);
+    g_date_time_unref(now);
+}
+
 /**
  * @param state Internal state of the menu.
  * @param key the Key being pressed.
@@ -1508,6 +1554,10 @@ MenuReturn menu ( Mode *sw, char **input, char *prompt, unsigned int *selected_l
                         XConvertSelection ( display, netatoms[CLIPBOARD], netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window,
                                             CurrentTime );
                     }
+                    if ( abe_test_action ( SCREENSHOT, ev.xkey.state, key ) ) {
+                        menu_capture_screenshot ( );
+                        break;
+                    }
                     else if ( abe_test_action ( MODE_PREVIOUS, ev.xkey.state, key ) ) {
                         state.retv               = MENU_PREVIOUS;
                         *( state.selected_line ) = 0;
@@ -1639,6 +1689,7 @@ MenuReturn menu ( Mode *sw, char **input, char *prompt, unsigned int *selected_l
     return retv;
 }
 
+
 void error_dialog ( const char *msg, int markup )
 {
     MenuState state = {