commit 6ea74d4327928ef99c80bfecd1ed32a49c9f1739
Author: AndrewLockVI <andrew@laack.co>
Date: Fri, 21 Feb 2025 05:12:36 -0600
Init commit
Diffstat:
| A | .gitignore | | | 1 | + |
| A | LICENCE | | | 674 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | Makefile | | | 25 | +++++++++++++++++++++++++ |
| A | README | | | 36 | ++++++++++++++++++++++++++++++++++++ |
| A | dragon.1 | | | 77 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | dragon.c | | | 676 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | example/download.sh | | | 8 | ++++++++ |
7 files changed, 1497 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1 @@
+dragon
diff --git a/LICENCE b/LICENCE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
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+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,25 @@
+PREFIX = $(HOME)/.local
+MANPREFIX = $(PREFIX)/share/man
+NAME = dragon
+
+GTK_CFLAGS = `pkg-config --cflags gtk+-3.0`
+GTK_LDLIBS = `pkg-config --libs gtk+-3.0`
+
+all: $(NAME)
+
+$(NAME): dragon.c Makefile
+ $(CC) --std=c99 -Wall $(DEFINES) dragon.c -o $(NAME) $(GTK_CFLAGS) $(CFLAGS) $(LDFLAGS) $(GTK_LDLIBS)
+
+install: $(NAME)
+ mkdir -p $(DESTDIR)$(PREFIX)/bin
+ cp -f $(NAME) $(DESTDIR)$(PREFIX)/bin
+ chmod 755 $(DESTDIR)$(PREFIX)/bin/$(NAME)
+ mkdir -p $(DESTDIR)$(MANPREFIX)/man1
+ sed -e "s/dragon/$(NAME)/g" dragon.1 > $(DESTDIR)$(MANPREFIX)/man1/$(NAME).1
+ chmod 644 $(DESTDIR)$(MANPREFIX)/man1/$(NAME).1
+
+uninstall:
+ rm -f $(DESTDIR)$(PREFIX)/bin/$(NAME) $(DESTDIR)$(MANPREFIX)/man1/$(NAME).1
+
+clean:
+ rm -f $(NAME)
diff --git a/README b/README
@@ -0,0 +1,36 @@
+dragon - simple drag-and-drop source/sink for X or Wayland
+
+Many programs, particularly web applications, expect files to be dragged
+into them now. If you don't habitually use a file manager that is a
+problem. dragon is a lightweight drag-and-drop source for X where you
+can run:
+ dragon file.tar.gz
+to get a window with just that file in it, ready to be dragged where you
+need it.
+
+What if you need to drag into something? Using:
+ dragon --target
+you get a window you can drag files and text into. Dropped items are
+printed to standard output.
+
+If you're only dealing with a single file, either source or sink, use
+the --and-exit option to terminate as soon as one drag-and-drop
+operation is complete.
+
+If you want to keep the files you drag in around for a while, use:
+ dragon --target --keep
+and each file you drop becomes its own draggable button, which you can
+drag elsewhere later.
+
+Installing
+----------
+Just run `make` to compile dragon and get an executable you can run
+immediately or put where you like.
+
+To install, run `make install`, which will put it into ~/.local/bin by
+default. If you want a different destination, run `make
+PREFIX=/path/here install` instead. To choose a different executable
+name, run `make NAME=dragon-drop install`, which will generate the
+executable and man page to match the given name.
+
+dragon requires GTK+ 3 and is distributed under the GNU GPL version 3.
diff --git a/dragon.1 b/dragon.1
@@ -0,0 +1,77 @@
+.TH DRAGON 1
+.SH NAME
+dragon \- lightweight DnD source/target
+.SH SYNOPSIS
+.B dragon
+.OP -x
+.OP -t
+.OP -k
+.OP -p
+.OP -a
+.OP -A
+.OP -i
+.OP -f
+.OP -F
+.OP -T
+.OP -I
+.OP -s
+.OP -v
+FILENAME
+.PP
+.B dragon
+.OP --help
+.PP
+.B dragon
+.OP --version
+.SH DESCRIPTION
+.B dragon
+is a source/sink for drag-and-drop operations. Many programs, particularly
+web applications, expect files to be dragged into them now. If you don't
+habitually use a file manager that is a problem. Dragon creates a small window
+to drag out or drop files into, instead.
+.SH OPTIONS
+.TP
+.B -x --and-exit
+exit after a single completed drop.
+.TP
+.B -t --target
+act as a target instead of source.
+.TP
+.B -k --keep
+with --target, keep files to drag out.
+.TP
+.B -p --print-path
+with --target, print file paths instead of URIs.
+.TP
+.B -a --all
+drag all files at once.
+.TP
+.B -A --all-compact
+drag all files at once, only displaying the number of files.
+.TP
+.B -i --icon-only
+only show icons in drag-and-drop windows.
+.TP
+.B -f --name-only
+only show the file name, not path.
+.TP
+.B -F --full-path
+show absolute path to all files.
+.TP
+.B -T --on-top
+make window always-on-top.
+.TP
+.B -I --stdin
+read filenames from stdin.
+.TP
+.B -s --thumb-size
+set thumbnail size (default 96)
+.TP
+.B -v --verbose
+be verbose.
+.TP
+.B --help
+show help.
+.TP
+.B --version
+show version details.
diff --git a/dragon.c b/dragon.c
@@ -0,0 +1,676 @@
+// dragon - very lightweight DnD file source/target
+// Copyright 2014 Michael Homer.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 500
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkkeysyms.h>
+#include <gio/gio.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+#define VERSION "1.2.0"
+
+// Provides an absolute minimum width and height.
+#define USE_GEOMETRY_HINTS false
+#define MIN_WIDTH 640
+#define MIN_HEIGHT 480
+
+// Top-level window.
+GtkWidget *window;
+
+// Container providing the scrolling.
+GtkWidget *panel;
+
+// Child of panel, where all the children are added.
+GtkWidget *vbox;
+
+GtkIconTheme *icon_theme;
+GFile *currentDir;
+
+char *progname;
+bool verbose = false;
+int mode = 0;
+int thumb_size = 96;
+bool and_exit;
+bool keep;
+bool print_path = false;
+bool icons_only = false;
+int name_style = 0; // 0: relative 1: basename 2: absolute
+bool always_on_top = false;
+
+static char *stdin_files;
+
+#define MODE_HELP 1
+#define MODE_TARGET 2
+#define MODE_VERSION 4
+
+#define TARGET_TYPE_TEXT 1
+#define TARGET_TYPE_URI 2
+
+struct draggable_thing {
+ char *text;
+ char *uri;
+};
+
+// MODE_ALL
+#define MAX_SIZE 100
+char** uri_collection;
+int uri_count = 0;
+bool drag_all = false;
+bool all_compact = false;
+char file_num_label[10];
+struct draggable_thing fake_dragdata;
+GtkWidget *all_button;
+// ---
+
+void add_target_button();
+
+void do_quit(GtkWidget *widget, gpointer data) {
+ exit(0);
+}
+
+void button_clicked(GtkWidget *widget, gpointer user_data) {
+ struct draggable_thing *dd = (struct draggable_thing *)user_data;
+ if (0 == fork()) {
+ execlp("xdg-open", "xdg-open", dd->uri, NULL);
+ }
+}
+
+void drag_data_get(GtkWidget *widget,
+ GdkDragContext *context,
+ GtkSelectionData *data,
+ guint info,
+ guint time,
+ gpointer user_data) {
+ struct draggable_thing *dd = (struct draggable_thing *)user_data;
+ if (info == TARGET_TYPE_URI) {
+
+ char** uris;
+ char* single_uri_data[2] = {dd->uri, NULL};
+ if (drag_all) {
+ uri_collection[uri_count] = NULL;
+ uris = uri_collection;
+ } else {
+ uris = single_uri_data;
+ }
+ if (verbose) {
+ if (drag_all)
+ fputs("Sending all as URI\n", stderr);
+ else
+ fprintf(stderr, "Sending as URI: %s\n", dd->uri);
+ }
+
+ gtk_selection_data_set_uris(data, uris);
+ g_signal_stop_emission_by_name(widget, "drag-data-get");
+ } else if (info == TARGET_TYPE_TEXT) {
+ if (verbose)
+ fprintf(stderr, "Sending as TEXT: %s\n", dd->text);
+ gtk_selection_data_set_text(data, dd->text, -1);
+ } else {
+ fprintf(stderr, "Error: bad target type %i\n", info);
+ }
+}
+
+void drag_end(GtkWidget *widget, GdkDragContext *context, gpointer user_data) {
+ if (verbose) {
+ gboolean succeeded = gdk_drag_drop_succeeded(context);
+ GdkDragAction action = gdk_drag_context_get_selected_action (context);
+ char* action_str;
+ switch (action) {
+ case GDK_ACTION_COPY:
+ action_str = "COPY"; break;
+ case GDK_ACTION_MOVE:
+ action_str = "MOVE"; break;
+ case GDK_ACTION_LINK:
+ action_str = "LINK"; break;
+ case GDK_ACTION_ASK:
+ action_str = "ASK"; break;
+ default:
+ action_str = malloc(sizeof(char) * 20);
+ snprintf(action_str, 20, "invalid (%d)", action);
+ break;
+ }
+ fprintf(stderr, "Selected drop action: %s; Succeeded: %d\n", action_str, succeeded);
+ if (action_str[0] == 'i')
+ free(action_str);
+ }
+ if (and_exit)
+ gtk_main_quit();
+}
+
+void add_uri(char *uri) {
+ if (uri_count < MAX_SIZE) {
+ uri_collection[uri_count] = uri;
+ uri_count++;
+ } else {
+ fprintf(stderr, "Exceeded maximum number of files for drag_all (%d)\n", MAX_SIZE);
+ }
+}
+
+GtkButton *add_button(char *label, struct draggable_thing *dragdata, int type, char *tooltip) {
+ GtkWidget *button;
+
+ if (icons_only) {
+ button = gtk_button_new();
+ } else {
+ button = gtk_button_new_with_label(label);
+ }
+
+ // Show a tooltip based on `tooltip` or the button's intended label.
+ // Ideally, the value is the file's full path.
+ gtk_widget_set_tooltip_text(button, tooltip != NULL ? tooltip : label);
+
+ GtkTargetList *targetlist = gtk_drag_source_get_target_list(GTK_WIDGET(button));
+ if (targetlist)
+ gtk_target_list_ref(targetlist);
+ else
+ targetlist = gtk_target_list_new(NULL, 0);
+ if (type == TARGET_TYPE_URI)
+ gtk_target_list_add_uri_targets(targetlist, TARGET_TYPE_URI);
+ else
+ gtk_target_list_add_text_targets(targetlist, TARGET_TYPE_TEXT);
+
+ gtk_drag_source_set(GTK_WIDGET(button), GDK_BUTTON1_MASK, NULL, 0,
+ GDK_ACTION_COPY | GDK_ACTION_LINK | GDK_ACTION_ASK);
+ gtk_drag_source_set_target_list(GTK_WIDGET(button), targetlist);
+ g_signal_connect(GTK_WIDGET(button), "drag-data-get",
+ G_CALLBACK(drag_data_get), dragdata);
+ g_signal_connect(GTK_WIDGET(button), "clicked",
+ G_CALLBACK(button_clicked), dragdata);
+ g_signal_connect(GTK_WIDGET(button), "drag-end",
+ G_CALLBACK(drag_end), dragdata);
+
+ gtk_container_add(GTK_CONTAINER(vbox), button);
+
+ if (drag_all)
+ add_uri(dragdata->uri);
+ else
+ uri_count++;
+
+ return (GtkButton *)button;
+}
+
+void left_align_button(GtkButton *button) {
+ GList *child = g_list_first(
+ gtk_container_get_children(GTK_CONTAINER(button)));
+ if (child)
+ gtk_widget_set_halign(GTK_WIDGET(child->data), GTK_ALIGN_START);
+}
+
+GtkIconInfo* icon_info_from_content_type(char *content_type) {
+ GIcon *icon = g_content_type_get_icon(content_type);
+ return gtk_icon_theme_lookup_by_gicon(icon_theme, icon, 48, 0);
+}
+
+void add_file_button(GFile *file) {
+ char *filename;
+ // Default is relative path to file from ., if file is within .
+ filename = g_file_get_relative_path(currentDir, file);
+ // When the filename only option is set, only the file's basename including
+ // extension is displayed, not the entire path. The button's label is
+ // obtained from the file argument and depending on `filename_only`, may
+ // be either the basename or the full path. However, the full path is
+ // necessary to get the pixel buffer for image as well as for the button's
+ // tooltip.
+ char *path = g_file_get_path(file);
+
+ if (name_style == 1) {
+ filename = g_path_get_basename(path);
+ } else if (name_style == 2 || !filename) {
+ filename = g_file_get_path(file);
+ }
+
+ if(!g_file_query_exists(file, NULL)) {
+ fprintf(stderr, "The file `%s' does not exist.\n",
+ filename);
+ exit(1);
+ }
+ char *uri = g_file_get_uri(file);
+ if (all_compact) {
+ add_uri(uri);
+ return;
+ }
+ struct draggable_thing *dragdata = malloc(sizeof(struct draggable_thing));
+ dragdata->text = filename;
+ dragdata->uri = uri;
+
+ GtkButton *button = add_button(filename, dragdata, TARGET_TYPE_URI, path);
+ GdkPixbuf *pb = gdk_pixbuf_new_from_file_at_size(path, thumb_size, thumb_size, NULL);
+ if (pb) {
+ GtkWidget *image = gtk_image_new_from_pixbuf(pb);
+ gtk_button_set_always_show_image(button, true);
+ gtk_button_set_image(button, image);
+ gtk_button_set_always_show_image(button, true);
+ } else {
+ GFileInfo *fileinfo = g_file_query_info(file, "*", 0, NULL, NULL);
+ GIcon *icon = g_file_info_get_icon(fileinfo);
+ GtkIconInfo *icon_info = gtk_icon_theme_lookup_by_gicon(icon_theme,
+ icon, 48, 0);
+
+ // Try a few fallback mimetypes if no icon can be found
+ if (!icon_info)
+ icon_info = icon_info_from_content_type("application/octet-stream");
+ if (!icon_info)
+ icon_info = icon_info_from_content_type("text/x-generic");
+ if (!icon_info)
+ icon_info = icon_info_from_content_type("text/plain");
+
+ if (icon_info) {
+ GtkWidget *image = gtk_image_new_from_pixbuf(
+ gtk_icon_info_load_icon(icon_info, NULL));
+ gtk_button_set_image(button, image);
+ gtk_button_set_always_show_image(button, true);
+ }
+ }
+
+ if (!icons_only)
+ left_align_button(button);
+}
+
+void add_filename_button(char *filename) {
+ GFile *file = g_file_new_for_path(filename);
+ add_file_button(file);
+}
+
+void add_uri_button(char *uri) {
+ if (all_compact) {
+ add_uri(uri);
+ return;
+ }
+ struct draggable_thing *dragdata = malloc(sizeof(struct draggable_thing));
+ dragdata->text = uri;
+ dragdata->uri = uri;
+ GtkButton *button = add_button(uri, dragdata, TARGET_TYPE_URI, NULL);
+ left_align_button(button);
+}
+
+bool is_uri(char *uri) {
+ for (int i=0; uri[i]; i++)
+ if (uri[i] == '/')
+ return false;
+ else if (uri[i] == ':' && i > 0)
+ return true;
+ else if (!( (uri[i] >= 'a' && uri[i] <= 'z')
+ || (uri[i] >= 'A' && uri[i] <= 'Z')
+ || (uri[i] >= '0' && uri[i] <= '9' && i > 0)
+ || (i > 0 && (uri[i] == '+' || uri[i] == '.' || uri[i] == '-'))
+ )) // RFC3986 URI scheme syntax
+ return false;
+ return false;
+}
+
+bool is_file_uri(char *uri) {
+ char *prefix = "file:";
+ return strncmp(prefix, uri, strlen(prefix)) == 0;
+}
+
+gboolean drag_drop (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time,
+ gpointer user_data) {
+ GtkTargetList *targetlist = gtk_drag_dest_get_target_list(widget);
+ GList *list = gdk_drag_context_list_targets(context);
+ if (list) {
+ while (list) {
+ GdkAtom atom = (GdkAtom)g_list_nth_data(list, 0);
+ if (gtk_target_list_find(targetlist,
+ GDK_POINTER_TO_ATOM(g_list_nth_data(list, 0)), NULL)) {
+ gtk_drag_get_data(widget, context, atom, time);
+ return true;
+ }
+ list = g_list_next(list);
+ }
+ }
+ gtk_drag_finish(context, false, false, time);
+ return true;
+}
+
+void update_all_button() {
+ sprintf(file_num_label, "%d files", uri_count);
+ gtk_button_set_label((GtkButton *)all_button, file_num_label);
+}
+
+void
+drag_data_received (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *data,
+ guint info,
+ guint time) {
+ gchar **uris = gtk_selection_data_get_uris(data);
+ unsigned char *text = gtk_selection_data_get_text(data);
+ if (!uris && !text)
+ gtk_drag_finish (context, FALSE, FALSE, time);
+ if (uris) {
+ if (verbose)
+ fputs("Received URIs\n", stderr);
+ gtk_container_remove(GTK_CONTAINER(vbox), widget);
+ for (; *uris; uris++) {
+ if (is_file_uri(*uris)) {
+ GFile *file = g_file_new_for_uri(*uris);
+ if (print_path) {
+ char *filename = g_file_get_path(file);
+ printf("%s\n", filename);
+ } else
+ printf("%s\n", *uris);
+ if (keep)
+ add_file_button(file);
+
+ } else {
+ printf("%s\n", *uris);
+ if (keep)
+ add_uri_button(*uris);
+ }
+ }
+ if (all_compact)
+ update_all_button();
+ add_target_button();
+ gtk_widget_show_all(window);
+ } else if (text) {
+ if (verbose)
+ fputs("Received Text\n", stderr);
+ printf("%s\n", text);
+ } else if (verbose)
+ fputs("Received nothing\n", stderr);
+ gtk_drag_finish (context, TRUE, FALSE, time);
+ if (and_exit)
+ gtk_main_quit();
+}
+
+void add_target_button() {
+ GtkWidget *label = gtk_button_new();
+ gtk_button_set_label(GTK_BUTTON(label), "Drag something here...");
+ gtk_container_add(GTK_CONTAINER(vbox), label);
+ GtkTargetList *targetlist = gtk_drag_dest_get_target_list(GTK_WIDGET(label));
+ if (targetlist)
+ gtk_target_list_ref(targetlist);
+ else
+ targetlist = gtk_target_list_new(NULL, 0);
+ gtk_target_list_add_text_targets(targetlist, TARGET_TYPE_TEXT);
+ gtk_target_list_add_uri_targets(targetlist, TARGET_TYPE_URI);
+ gtk_drag_dest_set(GTK_WIDGET(label),
+ GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_HIGHLIGHT, NULL, 0,
+ GDK_ACTION_COPY);
+ gtk_drag_dest_set_target_list(GTK_WIDGET(label), targetlist);
+ g_signal_connect(GTK_WIDGET(label), "drag-drop",
+ G_CALLBACK(drag_drop), NULL);
+ g_signal_connect(GTK_WIDGET(label), "drag-data-received",
+ G_CALLBACK(drag_data_received), NULL);
+}
+
+void target_mode() {
+ add_target_button();
+ gtk_widget_show_all(window);
+ gtk_main();
+}
+
+void make_btn(char *filename) {
+ if (!is_uri(filename)) {
+ add_filename_button(filename);
+ } else if (is_file_uri(filename)) {
+ GFile *file = g_file_new_for_uri(filename);
+ add_file_button(file);
+ } else {
+ add_uri_button(filename);
+ }
+}
+
+static void readstdin(void) {
+ char *write_pos = stdin_files, *newline;
+ size_t max_size = BUFSIZ * 2, cur_size = 0;
+ // read each line from stdin and add it to the item list
+ while (fgets(write_pos, BUFSIZ, stdin)) {
+ if (write_pos[0] == '-')
+ continue;
+ if ((newline = strchr(write_pos, '\n')))
+ *newline = '\0';
+ else
+ break;
+ make_btn(write_pos);
+ cur_size = newline - stdin_files + 1;
+ if (max_size < cur_size + BUFSIZ) {
+ if (!(stdin_files = realloc(stdin_files, (max_size += BUFSIZ))))
+ fprintf(stderr, "%s: cannot realloc %lu bytes.\n", progname, max_size);
+ newline = stdin_files + cur_size - 1;
+ }
+ write_pos = newline + 1;
+ }
+}
+
+void create_all_button() {
+ sprintf(file_num_label, "%d files", uri_count);
+ all_button = gtk_button_new_with_label(file_num_label);
+
+ GtkTargetList *targetlist = gtk_target_list_new(NULL, 0);
+ gtk_target_list_add_uri_targets(targetlist, TARGET_TYPE_URI);
+
+ // fake uri to avoid segfault when callback deference it
+ fake_dragdata.uri = file_num_label;
+
+ gtk_drag_source_set(GTK_WIDGET(all_button), GDK_BUTTON1_MASK, NULL, 0,
+ GDK_ACTION_COPY | GDK_ACTION_LINK | GDK_ACTION_ASK);
+ gtk_drag_source_set_target_list(GTK_WIDGET(all_button), targetlist);
+ g_signal_connect(GTK_WIDGET(all_button), "drag-data-get",
+ G_CALLBACK(drag_data_get), &fake_dragdata);
+ g_signal_connect(GTK_WIDGET(all_button), "drag-end",
+ G_CALLBACK(drag_end), &fake_dragdata);
+
+ gtk_container_add(GTK_CONTAINER(vbox), all_button);
+}
+
+// Sets the minimum content width and height for the ScrolledWindow based on
+// the allocated width and height of the input container.
+void constrain_window_size(GtkWindow *window, GtkWidget *container, GtkScrolledWindow *scrolled_window) {
+ // Get the workarea of the monitor to limit the container's size.
+ GdkDisplay *display = gdk_display_get_default();
+ GdkMonitor *monitor = gdk_display_get_monitor(display, 0);
+ GdkRectangle *workarea = malloc(sizeof(GdkRectangle));
+
+ gdk_monitor_get_workarea(monitor, workarea);
+
+ // If enabled, the window's width and height will not be less than the
+ // defined values, regardless of the container's dimensions.
+#if USE_GEOMETRY_HINTS
+ GdkGeometry *geometry = malloc(sizeof(GdkGeometry));
+ geometry->min_width = MIN_WIDTH;
+ geometry->min_height = MIN_HEIGHT;
+ geometry->max_width = workarea->width;
+ geometry->max_height = workarea->height;
+
+ gtk_window_set_geometry_hints(window, NULL, geometry, GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE);
+#endif
+
+ int vbox_width = gtk_widget_get_allocated_width(container);
+ int vbox_height = gtk_widget_get_allocated_height(container);
+
+ // Placeholder until a way is found to have the window including its
+ // decorations and padding to occupy the workarea and not slightly exceed
+ // it.
+ int padded_height = workarea->height - (workarea->height * 0.05);
+ int padded_width = workarea->width - (workarea->width * 0.05);
+
+ int scroll_width = vbox_width > padded_width ? padded_width : vbox_width;
+ int scroll_height = vbox_height > padded_height ? padded_height : vbox_height;
+
+ gtk_scrolled_window_set_min_content_width((GtkScrolledWindow*)scrolled_window, scroll_width);
+ gtk_scrolled_window_set_min_content_height((GtkScrolledWindow*)scrolled_window, scroll_height);
+}
+
+int main (int argc, char **argv) {
+ bool from_stdin = false;
+ stdin_files = malloc(BUFSIZ * 2);
+ progname = argv[0];
+ for (int i=1; i<argc; i++) {
+ if (strcmp(argv[i], "--help") == 0) {
+ mode = MODE_HELP;
+ printf("dragon - lightweight DnD source/target\n");
+ printf("Usage: %s [OPTION] [FILENAME]\n", progname);
+ printf(" --and-exit, -x exit after a single completed drop\n");
+ printf(" --target, -t act as a target instead of source\n");
+ printf(" --keep, -k with --target, keep files to drag out\n");
+ printf(" --print-path, -p with --target, print file paths"
+ " instead of URIs\n");
+ printf(" --all, -a drag all files at once\n");
+ printf(" --all-compact, -A drag all files at once, only displaying"
+ " the number of files\n");
+ printf(" --icon-only, -i only show icons in drag-and-drop"
+ " windows\n");
+ printf(" --name-only, -f only show the file's basename and"
+ " not the full path\n");
+ printf(" --on-top, -T make window always-on-top\n");
+ printf(" --stdin, -I read input from stdin\n");
+ printf(" --thumb-size, -s set thumbnail size (default 96)\n");
+ printf(" --verbose, -v be verbose\n");
+ printf(" --help show help\n");
+ printf(" --version show version details\n");
+ exit(0);
+ } else if (strcmp(argv[i], "--version") == 0) {
+ mode = MODE_VERSION;
+ puts("dragon " VERSION);
+ puts("Copyright (C) 2014-2022 Michael Homer and contributors");
+ puts("This program comes with ABSOLUTELY NO WARRANTY.");
+ puts("See the source for copying conditions.");
+ exit(0);
+ } else if (strcmp(argv[i], "-v") == 0
+ || strcmp(argv[i], "--verbose") == 0) {
+ verbose = true;
+ } else if (strcmp(argv[i], "-t") == 0
+ || strcmp(argv[i], "--target") == 0) {
+ mode = MODE_TARGET;
+ } else if (strcmp(argv[i], "-x") == 0
+ || strcmp(argv[i], "--and-exit") == 0) {
+ and_exit = true;
+ } else if (strcmp(argv[i], "-k") == 0
+ || strcmp(argv[i], "--keep") == 0) {
+ keep = true;
+ } else if (strcmp(argv[i], "-p") == 0
+ || strcmp(argv[i], "--print-path") == 0) {
+ print_path = true;
+ } else if (strcmp(argv[i], "-a") == 0
+ || strcmp(argv[i], "--all") == 0) {
+ drag_all = true;
+ } else if (strcmp(argv[i], "-A") == 0
+ || strcmp(argv[i], "--all-compact") == 0) {
+ drag_all = true;
+ all_compact = true;
+ } else if (strcmp(argv[i], "-i") == 0
+ || strcmp(argv[i], "--icon-only") == 0) {
+ icons_only = true;
+ } else if (strcmp(argv[i], "-f") == 0
+ || strcmp(argv[i], "--name-only") == 0) {
+ name_style = 1;
+ } else if (strcmp(argv[i], "-F") == 0
+ || strcmp(argv[i], "--full-path") == 0) {
+ name_style = 2;
+ } else if (strcmp(argv[i], "-T") == 0
+ || strcmp(argv[i], "--on-top") == 0) {
+ always_on_top = true;
+ } else if (strcmp(argv[i], "-I") == 0
+ || strcmp(argv[i], "--stdin") == 0) {
+ from_stdin = true;
+ } else if (strcmp(argv[i], "-s") == 0
+ || strcmp(argv[i], "--thumb-size") == 0) {
+ if (argv[++i] == NULL || (thumb_size = atoi(argv[i])) <= 0) {
+ fprintf(stderr, "%s: error: bad argument for %s `%s'.\n",
+ progname, argv[i-1], argv[i]);
+ exit(1);
+ }
+ argv[i][0] = '\0';
+ } else if (argv[i][0] == '-') {
+ fprintf(stderr, "%s: error: unknown option `%s'.\n",
+ progname, argv[i]);
+ }
+ }
+ setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
+
+ GtkAccelGroup *accelgroup;
+ GClosure *closure;
+
+ gtk_init(&argc, &argv);
+
+ icon_theme = gtk_icon_theme_get_default();
+
+ window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+
+ // Scrolling Window
+ panel = gtk_scrolled_window_new(NULL, NULL);
+
+ closure = g_cclosure_new(G_CALLBACK(do_quit), NULL, NULL);
+ accelgroup = gtk_accel_group_new();
+ gtk_accel_group_connect(accelgroup, GDK_KEY_Escape, 0, 0, closure);
+ closure = g_cclosure_new(G_CALLBACK(do_quit), NULL, NULL);
+ gtk_accel_group_connect(accelgroup, GDK_KEY_q, 0, 0, closure);
+ gtk_window_add_accel_group(GTK_WINDOW(window), accelgroup);
+
+ gtk_window_set_title(GTK_WINDOW(window), "Run");
+ gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
+ gtk_window_set_keep_above(GTK_WINDOW(window), always_on_top);
+
+ g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
+
+ vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 6);
+
+ gtk_container_add(GTK_CONTAINER(panel), vbox);
+
+ gtk_container_add(GTK_CONTAINER(window), panel);
+
+ gtk_window_set_title(GTK_WINDOW(window), "dragon");
+
+ currentDir = g_file_new_for_path(".");
+
+ if (all_compact)
+ create_all_button();
+
+ if (mode == MODE_TARGET) {
+ if (drag_all)
+ uri_collection = malloc(sizeof(char*) * (MAX_SIZE + 1));
+ target_mode();
+ exit(0);
+ }
+
+ if (from_stdin)
+ uri_collection = malloc(sizeof(char*) * (MAX_SIZE + 1));
+ else if (drag_all)
+ uri_collection = malloc(sizeof(char*) * ((argc > MAX_SIZE ? argc : MAX_SIZE) + 1));
+
+ for (int i=1; i<argc; i++) {
+ if (argv[i][0] != '-' && argv[i][0] != '\0')
+ make_btn(argv[i]);
+ }
+ if (from_stdin)
+ readstdin();
+
+ if (!uri_count) {
+ printf("Usage: %s [OPTIONS] FILENAME\n", progname);
+ exit(0);
+ }
+
+ if (all_compact)
+ update_all_button();
+
+ gtk_widget_show_all(window);
+ constrain_window_size(GTK_WINDOW(window), vbox, (GtkScrolledWindow*)panel);
+
+ gtk_main();
+
+ return 0;
+}
diff --git a/example/download.sh b/example/download.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+# This toy example uses wget and the --target mode to act
+# as a drag-and-drop download tool.
+
+../dragon --target | while read url
+do
+ wget "$url"
+done
