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|
//
// fiv-sidebar.c: molesting GtkPlacesSidebar
//
// Copyright (c) 2021 - 2022, Přemysl Eric Janouch <p@janouch.name>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
#include <gtk/gtk.h>
#include "fiv-context-menu.h"
#include "fiv-io.h"
#include "fiv-sidebar.h"
struct _FivSidebar {
GtkScrolledWindow parent_instance;
GtkPlacesSidebar *places;
GtkWidget *toolbar;
GtkWidget *listbox;
FivIoModel *model;
};
G_DEFINE_TYPE(FivSidebar, fiv_sidebar, GTK_TYPE_SCROLLED_WINDOW)
G_DEFINE_QUARK(fiv-sidebar-location-quark, fiv_sidebar_location)
G_DEFINE_QUARK(fiv-sidebar-self-quark, fiv_sidebar_self)
enum {
OPEN_LOCATION,
LAST_SIGNAL,
};
// Globals are, sadly, the canonical way of storing signal numbers.
static guint sidebar_signals[LAST_SIGNAL];
static void
fiv_sidebar_dispose(GObject *gobject)
{
FivSidebar *self = FIV_SIDEBAR(gobject);
if (self->model) {
g_signal_handlers_disconnect_by_data(self->model, self);
g_clear_object(&self->model);
}
G_OBJECT_CLASS(fiv_sidebar_parent_class)->dispose(gobject);
}
static void
fiv_sidebar_realize(GtkWidget *widget)
{
GTK_WIDGET_CLASS(fiv_sidebar_parent_class)->realize(widget);
// Fucking GTK+. With no bookmarks, the revealer takes up space anyway.
FivSidebar *self = FIV_SIDEBAR(widget);
gtk_places_sidebar_set_drop_targets_visible(self->places, TRUE, NULL);
gtk_places_sidebar_set_drop_targets_visible(self->places, FALSE, NULL);
}
static void
fiv_sidebar_class_init(FivSidebarClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS(klass);
object_class->dispose = fiv_sidebar_dispose;
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
widget_class->realize = fiv_sidebar_realize;
// You're giving me no choice, Adwaita.
// Your style is hardcoded to match against the class' CSS name.
// And I need replicate the internal widget structure.
gtk_widget_class_set_css_name(widget_class, "placessidebar");
// TODO(p): Consider a return value, and using it.
sidebar_signals[OPEN_LOCATION] =
g_signal_new("open-location", G_TYPE_FROM_CLASS(klass), 0, 0,
NULL, NULL, NULL, G_TYPE_NONE,
2, G_TYPE_FILE, GTK_TYPE_PLACES_OPEN_FLAGS);
}
static gboolean
on_rowlabel_query_tooltip(GtkWidget *widget,
G_GNUC_UNUSED gint x, G_GNUC_UNUSED gint y,
G_GNUC_UNUSED gboolean keyboard_tooltip, GtkTooltip *tooltip)
{
GtkLabel *label = GTK_LABEL(widget);
if (!pango_layout_is_ellipsized(gtk_label_get_layout(label)))
return FALSE;
gtk_tooltip_set_text(tooltip, gtk_label_get_text(label));
return TRUE;
}
static gboolean
on_breadcrumb_button_release(
G_GNUC_UNUSED GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
// This also prevents unwanted primary button click handling in GtkListBox.
if (event->x > gdk_window_get_width(event->window) ||
event->y > gdk_window_get_height(event->window))
return TRUE;
guint state = event->state & gtk_accelerator_get_default_mod_mask();
if (event->button != GDK_BUTTON_MIDDLE || state != 0)
return FALSE;
GtkListBoxRow *row = GTK_LIST_BOX_ROW(user_data);
g_signal_emit(g_object_get_qdata(G_OBJECT(row), fiv_sidebar_self_quark()),
sidebar_signals[OPEN_LOCATION], 0,
g_object_get_qdata(G_OBJECT(row), fiv_sidebar_location_quark()),
GTK_PLACES_OPEN_NEW_WINDOW);
return TRUE;
}
static void
on_breadcrumb_drag_data_get(G_GNUC_UNUSED GtkWidget *widget,
G_GNUC_UNUSED GdkDragContext *context, GtkSelectionData *selection_data,
G_GNUC_UNUSED guint info, G_GNUC_UNUSED guint time_, gpointer user_data)
{
GtkListBoxRow *row = GTK_LIST_BOX_ROW(user_data);
GFile *location =
g_object_get_qdata(G_OBJECT(row), fiv_sidebar_location_quark());
gchar *uris[] = {g_file_get_uri(location), NULL};
gtk_selection_data_set_uris(selection_data, uris);
g_free(*uris);
}
static void
on_breadcrumb_drag_begin(G_GNUC_UNUSED GtkWidget *widget,
GdkDragContext *context, gpointer user_data)
{
gtk_places_sidebar_set_drop_targets_visible(user_data, TRUE, context);
}
static void
on_breadcrumb_drag_end(G_GNUC_UNUSED GtkWidget *widget,
GdkDragContext *context, gpointer user_data)
{
gtk_places_sidebar_set_drop_targets_visible(user_data, FALSE, context);
}
static gboolean
on_breadcrumb_button_press(GtkWidget *widget, GdkEventButton *event,
G_GNUC_UNUSED gpointer user_data)
{
if (event->type != GDK_BUTTON_PRESS ||
event->button != GDK_BUTTON_SECONDARY)
return FALSE;
GFile *location =
g_object_get_qdata(G_OBJECT(widget), fiv_sidebar_location_quark());
gtk_menu_popup_at_pointer(fiv_context_menu_new(widget, location), NULL);
return TRUE;
}
static gboolean
on_breadcrumb_popup_menu(GtkWidget *widget, G_GNUC_UNUSED gpointer user_data)
{
GFile *location =
g_object_get_qdata(G_OBJECT(widget), fiv_sidebar_location_quark());
gtk_menu_popup_at_widget(fiv_context_menu_new(widget, location), widget,
GDK_GRAVITY_SOUTH_WEST, GDK_GRAVITY_NORTH_WEST, NULL);
return TRUE;
}
static GtkWidget *
create_row(FivSidebar *self, GFile *file, const char *icon_name)
{
GError *error = NULL;
GFileInfo *info =
g_file_query_info(file, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL, &error);
if (!info) {
g_debug("%s", error->message);
g_error_free(error);
return NULL;
}
const char *name = g_file_info_get_display_name(info);
GtkWidget *rowbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
GtkWidget *rowimage =
gtk_image_new_from_icon_name(icon_name, GTK_ICON_SIZE_MENU);
gtk_style_context_add_class(
gtk_widget_get_style_context(rowimage), "sidebar-icon");
gtk_container_add(GTK_CONTAINER(rowbox), rowimage);
GtkWidget *rowlabel = gtk_label_new(name);
gtk_label_set_ellipsize(GTK_LABEL(rowlabel), PANGO_ELLIPSIZE_END);
gtk_widget_set_has_tooltip(rowlabel, TRUE);
g_signal_connect(rowlabel, "query-tooltip",
G_CALLBACK(on_rowlabel_query_tooltip), NULL);
gtk_style_context_add_class(
gtk_widget_get_style_context(rowlabel), "sidebar-label");
gtk_container_add(GTK_CONTAINER(rowbox), rowlabel);
// The revealer is primarily necessary to match Adwaita CSS rules,
// but it conveniently also has its own GdkWindow to hook events on.
GtkWidget *revealer = gtk_revealer_new();
gtk_widget_add_events(
revealer, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
gtk_revealer_set_reveal_child(
GTK_REVEALER(revealer), TRUE);
gtk_revealer_set_transition_type(
GTK_REVEALER(revealer), GTK_REVEALER_TRANSITION_TYPE_NONE);
gtk_container_add(GTK_CONTAINER(revealer), rowbox);
gtk_drag_source_set(revealer, GDK_BUTTON1_MASK, NULL, 0, GDK_ACTION_LINK);
gtk_drag_source_add_uri_targets(revealer);
gtk_drag_source_set_icon_name(revealer, "inode-directory-symbolic");
GtkWidget *row = gtk_list_box_row_new();
g_object_set_qdata_full(G_OBJECT(row), fiv_sidebar_location_quark(),
g_object_ref(file), (GDestroyNotify) g_object_unref);
g_object_set_qdata_full(G_OBJECT(row), fiv_sidebar_self_quark(),
g_object_ref(self), (GDestroyNotify) g_object_unref);
g_signal_connect(row, "button-press-event",
G_CALLBACK(on_breadcrumb_button_press), NULL);
g_signal_connect(row, "popup-menu",
G_CALLBACK(on_breadcrumb_popup_menu), NULL);
// TODO(p): Why do we hook to the revealer, and not the row itself?
// Is it due to some kind of margin or padding?
g_signal_connect(revealer, "button-release-event",
G_CALLBACK(on_breadcrumb_button_release), row);
g_signal_connect(revealer, "drag-data-get",
G_CALLBACK(on_breadcrumb_drag_data_get), row);
g_signal_connect(revealer, "drag-begin",
G_CALLBACK(on_breadcrumb_drag_begin), self->places);
g_signal_connect(revealer, "drag-end",
G_CALLBACK(on_breadcrumb_drag_end), self->places);
gtk_container_add(GTK_CONTAINER(row), revealer);
gtk_widget_show_all(row);
g_object_unref(info);
return row;
}
static void
update_location(FivSidebar *self)
{
GFile *location = fiv_io_model_get_location(self->model);
if (!location)
return;
gtk_places_sidebar_set_location(self->places, location);
gtk_container_foreach(GTK_CONTAINER(self->listbox),
(GtkCallback) gtk_widget_destroy, NULL);
GFile *iter = g_object_ref(location);
GtkWidget *row = NULL;
while (TRUE) {
GFile *parent = g_file_get_parent(iter);
g_object_unref(iter);
if (!(iter = parent))
break;
if ((row = create_row(self, parent, "go-up-symbolic")))
gtk_list_box_prepend(GTK_LIST_BOX(self->listbox), row);
}
// Other options are "folder-{visiting,open}-symbolic", though the former
// is mildly inappropriate (means: open in another window).
if ((row = create_row(self, location, "circle-filled-symbolic")))
gtk_container_add(GTK_CONTAINER(self->listbox), row);
gsize len = 0;
const FivIoModelEntry *subdirs =
fiv_io_model_get_subdirs(self->model, &len);
for (gsize i = 0; i < len; i++) {
GFile *file = g_file_new_for_uri(subdirs[i].uri);
if ((row = create_row(self, file, "go-down-symbolic")))
gtk_container_add(GTK_CONTAINER(self->listbox), row);
g_object_unref(file);
}
}
static void
on_open_breadcrumb(
G_GNUC_UNUSED GtkListBox *listbox, GtkListBoxRow *row, gpointer user_data)
{
FivSidebar *self = FIV_SIDEBAR(user_data);
GFile *location =
g_object_get_qdata(G_OBJECT(row), fiv_sidebar_location_quark());
g_signal_emit(self, sidebar_signals[OPEN_LOCATION], 0,
location, GTK_PLACES_OPEN_NORMAL);
}
static void
on_open_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar, GFile *location,
GtkPlacesOpenFlags flags, gpointer user_data)
{
FivSidebar *self = FIV_SIDEBAR(user_data);
g_signal_emit(self, sidebar_signals[OPEN_LOCATION], 0, location, flags);
// Deselect the item in GtkPlacesSidebar, if unsuccessful.
update_location(self);
}
static void
complete_path(GFile *location, GtkListStore *model)
{
// TODO(p): Do not enter directories unless followed by '/'.
// This information has already been stripped from `location`.
// TODO(p): Try out GFileCompleter.
GFile *parent = G_FILE_TYPE_DIRECTORY ==
g_file_query_file_type(location, G_FILE_QUERY_INFO_NONE, NULL)
? g_object_ref(location)
: g_file_get_parent(location);
if (!parent)
return;
GFileEnumerator *enumerator = g_file_enumerate_children(parent,
G_FILE_ATTRIBUTE_STANDARD_NAME
"," G_FILE_ATTRIBUTE_STANDARD_TYPE
"," G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN,
G_FILE_QUERY_INFO_NONE, NULL, NULL);
if (!enumerator)
goto fail_enumerator;
while (TRUE) {
GFileInfo *info = NULL;
GFile *child = NULL;
if (!g_file_enumerator_iterate(enumerator, &info, &child, NULL, NULL) ||
!info)
break;
if (g_file_info_get_file_type(info) != G_FILE_TYPE_DIRECTORY ||
g_file_info_get_is_hidden(info))
continue;
gchar *parse_name = g_file_get_parse_name(child);
if (!g_str_has_suffix(parse_name, G_DIR_SEPARATOR_S)) {
gchar *save = parse_name;
parse_name = g_strdup_printf("%s%c", parse_name, G_DIR_SEPARATOR);
g_free(save);
}
gtk_list_store_insert_with_values(model, NULL, -1, 0, parse_name, -1);
g_free(parse_name);
}
g_object_unref(enumerator);
fail_enumerator:
g_object_unref(parent);
}
static GFile *
resolve_location(FivSidebar *self, const char *text)
{
// Relative paths produce invalid GFile objects with this function.
// And even if they didn't, we have our own root for them.
GFile *file = g_file_parse_name(text);
if (g_file_peek_path(file))
return file;
// Neither branch looks like a particularly good solution.
// Though in general, false positives are preferred over negatives.
#if GLIB_CHECK_VERSION(2, 66, 0)
if (g_uri_is_valid(text, G_URI_FLAGS_PARSE_RELAXED, NULL))
return file;
#else
gchar *scheme = g_uri_parse_scheme(text);
g_free(scheme);
if (scheme)
return file;
#endif
GFile *absolute = g_file_get_child_for_display_name(
fiv_io_model_get_location(self->model), text, NULL);
if (!absolute)
return file;
g_object_unref(file);
return absolute;
}
static void
on_enter_location_changed(GtkEntry *entry, gpointer user_data)
{
FivSidebar *self = FIV_SIDEBAR(user_data);
const char *text = gtk_entry_get_text(entry);
GFile *location = resolve_location(self, text);
// Don't touch the network anywhere around here, URIs are a no-no.
GtkStyleContext *style = gtk_widget_get_style_context(GTK_WIDGET(entry));
if (!g_file_peek_path(location) || g_file_query_exists(location, NULL))
gtk_style_context_remove_class(style, GTK_STYLE_CLASS_WARNING);
else
gtk_style_context_add_class(style, GTK_STYLE_CLASS_WARNING);
// XXX: For some reason, this jumps around with longer lists.
GtkEntryCompletion *completion = gtk_entry_get_completion(entry);
GtkTreeModel *model = gtk_entry_completion_get_model(completion);
gtk_list_store_clear(GTK_LIST_STORE(model));
if (g_file_peek_path(location))
complete_path(location, GTK_LIST_STORE(model));
g_object_unref(location);
}
static void
on_show_enter_location(
G_GNUC_UNUSED GtkPlacesSidebar *sidebar, G_GNUC_UNUSED gpointer user_data)
{
FivSidebar *self = FIV_SIDEBAR(user_data);
GtkWidget *dialog = gtk_dialog_new_with_buttons("Enter location",
GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(self))),
GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL |
GTK_DIALOG_USE_HEADER_BAR,
"_Open", GTK_RESPONSE_ACCEPT, "_Cancel", GTK_RESPONSE_CANCEL, NULL);
GtkListStore *model = gtk_list_store_new(1, G_TYPE_STRING);
gtk_tree_sortable_set_sort_column_id(
GTK_TREE_SORTABLE(model), 0, GTK_SORT_ASCENDING);
GtkEntryCompletion *completion = gtk_entry_completion_new();
gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(model));
gtk_entry_completion_set_text_column(completion, 0);
// TODO(p): Complete ~ paths so that they start with ~, then we can filter.
gtk_entry_completion_set_match_func(
completion, (GtkEntryCompletionMatchFunc) gtk_true, NULL, NULL);
g_object_unref(model);
GtkWidget *entry = gtk_entry_new();
gtk_entry_set_completion(GTK_ENTRY(entry), completion);
gtk_entry_set_activates_default(GTK_ENTRY(entry), TRUE);
g_signal_connect(entry, "changed",
G_CALLBACK(on_enter_location_changed), self);
// Can't have it ellipsized and word-wrapped at the same time.
GtkWidget *protocols = gtk_label_new("");
gtk_label_set_ellipsize(GTK_LABEL(protocols), PANGO_ELLIPSIZE_END);
gtk_label_set_xalign(GTK_LABEL(protocols), 0);
gchar *protos = g_strjoinv(
", ", (gchar **) g_vfs_get_supported_uri_schemes(g_vfs_get_default()));
gchar *label = g_strdup_printf("<i>Available protocols:</i> %s", protos);
g_free(protos);
gtk_label_set_markup(GTK_LABEL(protocols), label);
g_free(label);
GtkWidget *content = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
g_object_set(content, "margin", 12, NULL);
gtk_box_set_spacing(GTK_BOX(content), 6);
gtk_container_add(GTK_CONTAINER(content), entry);
gtk_container_add(GTK_CONTAINER(content), protocols);
gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
gtk_window_set_skip_taskbar_hint(GTK_WINDOW(dialog), TRUE);
gtk_window_set_default_size(GTK_WINDOW(dialog), 800, -1);
gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL,
&(GdkGeometry) {.max_width = G_MAXSHORT, .max_height = -1},
GDK_HINT_MAX_SIZE);
gtk_widget_show_all(dialog);
if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
const char *text = gtk_entry_get_text(GTK_ENTRY(entry));
GFile *location = resolve_location(self, text);
g_signal_emit(self, sidebar_signals[OPEN_LOCATION], 0,
location, GTK_PLACES_OPEN_NORMAL);
g_object_unref(location);
}
gtk_widget_destroy(dialog);
g_object_unref(completion);
// Deselect the item in GtkPlacesSidebar, if unsuccessful.
update_location(self);
}
static void
fiv_sidebar_init(FivSidebar *self)
{
// TODO(p): Transplant functionality from the shitty GtkPlacesSidebar.
// We cannot reasonably place any new items within its own GtkListBox,
// so we need to replicate the style hierarchy to some extent.
GtkWidget *places = gtk_places_sidebar_new();
self->places = GTK_PLACES_SIDEBAR(places);
gtk_places_sidebar_set_show_recent(self->places, FALSE);
gtk_places_sidebar_set_show_trash(self->places, FALSE);
gtk_places_sidebar_set_open_flags(self->places,
GTK_PLACES_OPEN_NORMAL | GTK_PLACES_OPEN_NEW_WINDOW);
g_signal_connect(self->places, "open-location",
G_CALLBACK(on_open_location), self);
gint minimum_width = -1;
gtk_widget_get_size_request(places, &minimum_width, NULL);
gtk_widget_set_size_request(places, minimum_width, -1);
gtk_places_sidebar_set_show_enter_location(self->places, TRUE);
g_signal_connect(self->places, "show-enter-location",
G_CALLBACK(on_show_enter_location), self);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(self->places),
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
// None of GtkActionBar, GtkToolbar, .inline-toolbar is appropriate.
// It is either side-favouring borders or excess button padding.
self->toolbar = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 12);
gtk_style_context_add_class(
gtk_widget_get_style_context(self->toolbar), GTK_STYLE_CLASS_TOOLBAR);
self->listbox = gtk_list_box_new();
gtk_list_box_set_selection_mode(
GTK_LIST_BOX(self->listbox), GTK_SELECTION_NONE);
g_signal_connect(self->listbox, "row-activated",
G_CALLBACK(on_open_breadcrumb), self);
// Fill up what would otherwise be wasted space,
// as it is in the examples of Nautilus and Thunar.
GtkWidget *superbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add(
GTK_CONTAINER(superbox), GTK_WIDGET(self->places));
gtk_container_add(
GTK_CONTAINER(superbox), gtk_separator_new(GTK_ORIENTATION_VERTICAL));
gtk_container_add(
GTK_CONTAINER(superbox), self->toolbar);
gtk_container_add(
GTK_CONTAINER(superbox), gtk_separator_new(GTK_ORIENTATION_VERTICAL));
gtk_container_add(
GTK_CONTAINER(superbox), self->listbox);
gtk_container_add(GTK_CONTAINER(self), superbox);
gtk_scrolled_window_set_policy(
GTK_SCROLLED_WINDOW(self), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_style_context_add_class(gtk_widget_get_style_context(GTK_WIDGET(self)),
GTK_STYLE_CLASS_SIDEBAR);
gtk_style_context_add_class(gtk_widget_get_style_context(GTK_WIDGET(self)),
"fiv");
}
// --- Public interface --------------------------------------------------------
GtkWidget *
fiv_sidebar_new(FivIoModel *model)
{
g_return_val_if_fail(FIV_IS_IO_MODEL(model), NULL);
FivSidebar *self = g_object_new(FIV_TYPE_SIDEBAR, NULL);
// This doesn't work from the init function.
GtkWidget *sidebar_port = gtk_bin_get_child(GTK_BIN(self));
gtk_container_set_focus_hadjustment(GTK_CONTAINER(sidebar_port),
gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(self)));
gtk_container_set_focus_vadjustment(GTK_CONTAINER(sidebar_port),
gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(self)));
// TODO(p): There should be an extra signal to watch location changes only.
self->model = g_object_ref(model);
g_signal_connect_swapped(self->model, "subdirectories-changed",
G_CALLBACK(update_location), self);
return GTK_WIDGET(self);
}
void
fiv_sidebar_show_enter_location(FivSidebar *self)
{
g_return_if_fail(FIV_IS_SIDEBAR(self));
g_signal_emit_by_name(self->places, "show-enter-location");
}
GtkBox *
fiv_sidebar_get_toolbar(FivSidebar *self)
{
g_return_val_if_fail(FIV_IS_SIDEBAR(self), NULL);
return GTK_BOX(self->toolbar);
}
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