diff options
Diffstat (limited to 'fiv-io.c')
| -rw-r--r-- | fiv-io.c | 523 |
1 files changed, 0 insertions, 523 deletions
@@ -3449,529 +3449,6 @@ fiv_io_serialize_for_search(cairo_surface_t *surface, GError **error) jpeg, length, (GDestroyNotify) tjFree, jpeg); } -// --- Filesystem -------------------------------------------------------------- - -#include "xdg.h" - -static GPtrArray * -model_entry_array_new(void) -{ - return g_ptr_array_new_with_free_func(g_rc_box_release); -} - -struct _FivIoModel { - GObject parent_instance; - GPatternSpec **supported_patterns; - - GFile *directory; ///< Currently loaded directory - GFileMonitor *monitor; ///< "directory" monitoring - GPtrArray *subdirs; ///< "directory" contents - GPtrArray *files; ///< "directory" contents - - FivIoModelSort sort_field; ///< How to sort - gboolean sort_descending; ///< Whether to sort in reverse - gboolean filtering; ///< Only show non-hidden, supported -}; - -G_DEFINE_TYPE(FivIoModel, fiv_io_model, G_TYPE_OBJECT) - -enum { - PROP_FILTERING = 1, - PROP_SORT_FIELD, - PROP_SORT_DESCENDING, - N_PROPERTIES -}; - -static GParamSpec *model_properties[N_PROPERTIES]; - -enum { - FILES_CHANGED, - SUBDIRECTORIES_CHANGED, - LAST_SIGNAL, -}; - -// Globals are, sadly, the canonical way of storing signal numbers. -static guint model_signals[LAST_SIGNAL]; - -// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -static gboolean -model_supports(FivIoModel *self, const char *filename) -{ - gchar *utf8 = g_filename_to_utf8(filename, -1, NULL, NULL, NULL); - if (!utf8) - return FALSE; - - gchar *lc = g_utf8_strdown(utf8, -1); - gsize lc_length = strlen(lc); - gchar *reversed = g_utf8_strreverse(lc, lc_length); - g_free(utf8); - - // fnmatch() uses the /locale encoding/, and isn't present on Windows. - // TODO(p): Consider using g_file_info_get_display_name() for direct UTF-8. - gboolean result = FALSE; - for (GPatternSpec **p = self->supported_patterns; *p; p++) - if ((result = g_pattern_spec_match(*p, lc_length, lc, reversed))) - break; - - g_free(lc); - g_free(reversed); - return result; -} - -static inline int -model_compare_entries(FivIoModel *self, - const FivIoModelEntry *entry1, GFile *file1, - const FivIoModelEntry *entry2, GFile *file2) -{ - if (g_file_has_prefix(file1, file2)) - return +1; - if (g_file_has_prefix(file2, file1)) - return -1; - - int result = 0; - switch (self->sort_field) { - case FIV_IO_MODEL_SORT_MTIME: - result -= entry1->mtime_msec < entry2->mtime_msec; - result += entry1->mtime_msec > entry2->mtime_msec; - if (result != 0) - break; - - // Fall-through - case FIV_IO_MODEL_SORT_NAME: - case FIV_IO_MODEL_SORT_COUNT: - result = strcmp(entry1->collate_key, entry2->collate_key); - } - return self->sort_descending ? -result : +result; -} - -static gint -model_compare(gconstpointer a, gconstpointer b, gpointer user_data) -{ - const FivIoModelEntry *entry1 = *(const FivIoModelEntry **) a; - const FivIoModelEntry *entry2 = *(const FivIoModelEntry **) b; - GFile *file1 = g_file_new_for_uri(entry1->uri); - GFile *file2 = g_file_new_for_uri(entry2->uri); - int result = model_compare_entries(user_data, entry1, file1, entry2, file2); - g_object_unref(file1); - g_object_unref(file2); - return result; -} - -static size_t -model_strsize(const char *string) -{ - if (!string) - return 0; - - return strlen(string) + 1; -} - -static char * -model_strappend(char **p, const char *string, size_t size) -{ - if (!string) - return NULL; - - char *destination = memcpy(*p, string, size); - *p += size; - return destination; -} - -static FivIoModelEntry * -model_entry_new(GFile *file, GFileInfo *info) -{ - gchar *uri = g_file_get_uri(file); - const gchar *target_uri = g_file_info_get_attribute_string( - info, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI); - const gchar *display_name = g_file_info_get_display_name(info); - - // TODO(p): Make it possible to use g_utf8_collate_key() instead, - // which does not use natural sorting. - gchar *parse_name = g_file_get_parse_name(file); - gchar *collate_key = g_utf8_collate_key_for_filename(parse_name, -1); - g_free(parse_name); - - // The entries are immutable. Packing them into the structure - // should help memory usage as well as performance. - size_t size_uri = model_strsize(uri); - size_t size_target_uri = model_strsize(target_uri); - size_t size_display_name = model_strsize(display_name); - size_t size_collate_key = model_strsize(collate_key); - - FivIoModelEntry *entry = g_rc_box_alloc0(sizeof *entry + - size_uri + - size_target_uri + - size_display_name + - size_collate_key); - - gchar *p = (gchar *) entry + sizeof *entry; - entry->uri = model_strappend(&p, uri, size_uri); - entry->target_uri = model_strappend(&p, target_uri, size_target_uri); - entry->display_name = model_strappend(&p, display_name, size_display_name); - entry->collate_key = model_strappend(&p, collate_key, size_collate_key); - - entry->filesize = (guint64) g_file_info_get_size(info); - - GDateTime *mtime = g_file_info_get_modification_date_time(info); - if (mtime) { - entry->mtime_msec = g_date_time_to_unix(mtime) * 1000 + - g_date_time_get_microsecond(mtime) / 1000; - g_date_time_unref(mtime); - } - - g_free(uri); - g_free(collate_key); - return entry; -} - -static gboolean -model_reload_to(FivIoModel *self, GFile *directory, - GPtrArray *subdirs, GPtrArray *files, GError **error) -{ - if (subdirs) - g_ptr_array_set_size(subdirs, 0); - if (files) - g_ptr_array_set_size(files, 0); - - GFileEnumerator *enumerator = g_file_enumerate_children(directory, - G_FILE_ATTRIBUTE_STANDARD_TYPE "," - G_FILE_ATTRIBUTE_STANDARD_NAME "," - G_FILE_ATTRIBUTE_STANDARD_SIZE "," - G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME "," - G_FILE_ATTRIBUTE_STANDARD_TARGET_URI "," - G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN "," - G_FILE_ATTRIBUTE_TIME_MODIFIED "," - G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC, - G_FILE_QUERY_INFO_NONE, NULL, error); - if (!enumerator) - return FALSE; - - GFileInfo *info = NULL; - GFile *child = NULL; - GError *e = NULL; - while (TRUE) { - if (!g_file_enumerator_iterate(enumerator, &info, &child, NULL, &e) && - e) { - g_warning("%s", e->message); - g_clear_error(&e); - continue; - } - if (!info) - break; - if (self->filtering && g_file_info_get_is_hidden(info)) - continue; - - GPtrArray *target = NULL; - if (g_file_info_get_file_type(info) == G_FILE_TYPE_DIRECTORY) - target = subdirs; - else if (!self->filtering || - model_supports(self, g_file_info_get_name(info))) - target = files; - - if (target) - g_ptr_array_add(target, model_entry_new(child, info)); - } - g_object_unref(enumerator); - - if (subdirs) - g_ptr_array_sort_with_data(subdirs, model_compare, self); - if (files) - g_ptr_array_sort_with_data(files, model_compare, self); - return TRUE; -} - -static gboolean -model_reload(FivIoModel *self, GError **error) -{ - // Note that this will clear all entries on failure. - gboolean result = model_reload_to( - self, self->directory, self->subdirs, self->files, error); - - g_signal_emit(self, model_signals[FILES_CHANGED], 0); - g_signal_emit(self, model_signals[SUBDIRECTORIES_CHANGED], 0); - return result; -} - -static void -model_resort(FivIoModel *self) -{ - g_ptr_array_sort_with_data(self->subdirs, model_compare, self); - g_ptr_array_sort_with_data(self->files, model_compare, self); - - g_signal_emit(self, model_signals[FILES_CHANGED], 0); - g_signal_emit(self, model_signals[SUBDIRECTORIES_CHANGED], 0); -} - -// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// This would be more efficient iteratively, but it's not that important. -static GFile * -model_last_deep_subdirectory(FivIoModel *self, GFile *directory) -{ - GFile *result = NULL; - GPtrArray *subdirs = model_entry_array_new(); - if (!model_reload_to(self, directory, subdirs, NULL, NULL)) - goto out; - - if (subdirs->len) { - FivIoModelEntry *entry = g_ptr_array_index(subdirs, subdirs->len - 1); - GFile *last = g_file_new_for_uri(entry->uri); - result = model_last_deep_subdirectory(self, last); - g_object_unref(last); - } else { - result = g_object_ref(directory); - } - -out: - g_ptr_array_free(subdirs, TRUE); - return result; -} - -GFile * -fiv_io_model_get_previous_directory(FivIoModel *self) -{ - g_return_val_if_fail(FIV_IS_IO_MODEL(self), NULL); - - GFile *parent_directory = g_file_get_parent(self->directory); - if (!parent_directory) - return NULL; - - GFile *result = NULL; - GPtrArray *subdirs = model_entry_array_new(); - if (!model_reload_to(self, parent_directory, subdirs, NULL, NULL)) - goto out; - - for (gsize i = 0; i < subdirs->len; i++) { - FivIoModelEntry *entry = g_ptr_array_index(subdirs, i); - GFile *file = g_file_new_for_uri(entry->uri); - if (g_file_equal(file, self->directory)) { - g_object_unref(file); - break; - } - - g_clear_object(&result); - result = file; - } - if (result) { - GFile *last = model_last_deep_subdirectory(self, result); - g_object_unref(result); - result = last; - } else { - result = g_object_ref(parent_directory); - } - -out: - g_object_unref(parent_directory); - g_ptr_array_free(subdirs, TRUE); - return result; -} - -// This would be more efficient iteratively, but it's not that important. -static GFile * -model_next_directory_within_parents(FivIoModel *self, GFile *directory) -{ - GFile *parent_directory = g_file_get_parent(directory); - if (!parent_directory) - return NULL; - - GFile *result = NULL; - GPtrArray *subdirs = model_entry_array_new(); - if (!model_reload_to(self, parent_directory, subdirs, NULL, NULL)) - goto out; - - gboolean found_self = FALSE; - for (gsize i = 0; i < subdirs->len; i++) { - FivIoModelEntry *entry = g_ptr_array_index(subdirs, i); - result = g_file_new_for_uri(entry->uri); - if (found_self) - goto out; - - found_self = g_file_equal(result, directory); - g_clear_object(&result); - } - if (!result) - result = model_next_directory_within_parents(self, parent_directory); - -out: - g_object_unref(parent_directory); - g_ptr_array_free(subdirs, TRUE); - return result; -} - -GFile * -fiv_io_model_get_next_directory(FivIoModel *self) -{ - g_return_val_if_fail(FIV_IS_IO_MODEL(self), NULL); - - if (self->subdirs->len) { - FivIoModelEntry *entry = g_ptr_array_index(self->subdirs, 0); - return g_file_new_for_uri(entry->uri); - } - - return model_next_directory_within_parents(self, self->directory); -} - -// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -static void -fiv_io_model_finalize(GObject *gobject) -{ - FivIoModel *self = FIV_IO_MODEL(gobject); - for (GPatternSpec **p = self->supported_patterns; *p; p++) - g_pattern_spec_free(*p); - g_free(self->supported_patterns); - - g_clear_object(&self->directory); - g_clear_object(&self->monitor); - g_ptr_array_free(self->subdirs, TRUE); - g_ptr_array_free(self->files, TRUE); - - G_OBJECT_CLASS(fiv_io_model_parent_class)->finalize(gobject); -} - -static void -fiv_io_model_get_property( - GObject *object, guint property_id, GValue *value, GParamSpec *pspec) -{ - FivIoModel *self = FIV_IO_MODEL(object); - switch (property_id) { - case PROP_FILTERING: - g_value_set_boolean(value, self->filtering); - break; - case PROP_SORT_FIELD: - g_value_set_int(value, self->sort_field); - break; - case PROP_SORT_DESCENDING: - g_value_set_boolean(value, self->sort_descending); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); - } -} - -static void -fiv_io_model_set_property( - GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) -{ - FivIoModel *self = FIV_IO_MODEL(object); - switch (property_id) { - case PROP_FILTERING: - if (self->filtering != g_value_get_boolean(value)) { - self->filtering = !self->filtering; - g_object_notify_by_pspec(object, model_properties[property_id]); - (void) model_reload(self, NULL /* error */); - } - break; - case PROP_SORT_FIELD: - if ((int) self->sort_field != g_value_get_int(value)) { - self->sort_field = g_value_get_int(value); - g_object_notify_by_pspec(object, model_properties[property_id]); - model_resort(self); - } - break; - case PROP_SORT_DESCENDING: - if (self->sort_descending != g_value_get_boolean(value)) { - self->sort_descending = !self->sort_descending; - g_object_notify_by_pspec(object, model_properties[property_id]); - model_resort(self); - } - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); - } -} - -static void -fiv_io_model_class_init(FivIoModelClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS(klass); - object_class->get_property = fiv_io_model_get_property; - object_class->set_property = fiv_io_model_set_property; - object_class->finalize = fiv_io_model_finalize; - - model_properties[PROP_FILTERING] = g_param_spec_boolean( - "filtering", "Filtering", "Only show non-hidden, supported entries", - TRUE, G_PARAM_READWRITE); - // TODO(p): GObject enumerations are annoying, but this should be one. - model_properties[PROP_SORT_FIELD] = g_param_spec_int( - "sort-field", "Sort field", "Sort order", - FIV_IO_MODEL_SORT_MIN, FIV_IO_MODEL_SORT_MAX, - FIV_IO_MODEL_SORT_NAME, G_PARAM_READWRITE); - model_properties[PROP_SORT_DESCENDING] = g_param_spec_boolean( - "sort-descending", "Sort descending", "Use reverse sort order", - FALSE, G_PARAM_READWRITE); - g_object_class_install_properties( - object_class, N_PROPERTIES, model_properties); - - // TODO(p): Arguments something like: index, added, removed. - model_signals[FILES_CHANGED] = - g_signal_new("files-changed", G_TYPE_FROM_CLASS(klass), 0, 0, - NULL, NULL, NULL, G_TYPE_NONE, 0); - model_signals[SUBDIRECTORIES_CHANGED] = - g_signal_new("subdirectories-changed", G_TYPE_FROM_CLASS(klass), 0, 0, - NULL, NULL, NULL, G_TYPE_NONE, 0); -} - -// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -static void -fiv_io_model_init(FivIoModel *self) -{ - self->filtering = TRUE; - - char **types = fiv_io_all_supported_media_types(); - char **globs = extract_mime_globs((const char **) types); - g_strfreev(types); - - gsize n = g_strv_length(globs); - self->supported_patterns = - g_malloc0_n(n + 1, sizeof *self->supported_patterns); - while (n--) - self->supported_patterns[n] = g_pattern_spec_new(globs[n]); - g_strfreev(globs); - - self->files = model_entry_array_new(); - self->subdirs = model_entry_array_new(); -} - -gboolean -fiv_io_model_open(FivIoModel *self, GFile *directory, GError **error) -{ - g_return_val_if_fail(FIV_IS_IO_MODEL(self), FALSE); - g_return_val_if_fail(G_IS_FILE(directory), FALSE); - - g_clear_object(&self->directory); - g_clear_object(&self->monitor); - self->directory = g_object_ref(directory); - - // TODO(p): Process the ::changed signal. - self->monitor = g_file_monitor_directory( - directory, G_FILE_MONITOR_WATCH_MOVES, NULL, NULL /* error */); - return model_reload(self, error); -} - -GFile * -fiv_io_model_get_location(FivIoModel *self) -{ - g_return_val_if_fail(FIV_IS_IO_MODEL(self), NULL); - return self->directory; -} - -FivIoModelEntry *const * -fiv_io_model_get_files(FivIoModel *self, gsize *len) -{ - *len = self->files->len; - return (FivIoModelEntry *const *) self->files->pdata; -} - -FivIoModelEntry *const * -fiv_io_model_get_subdirs(FivIoModel *self, gsize *len) -{ - *len = self->subdirs->len; - return (FivIoModelEntry *const *) self->subdirs->pdata; -} - // --- Export ------------------------------------------------------------------ unsigned char * |