Add the information dialog to context menus
Images don't need to be open for ExifTool to work. This also enables inspecting unsupported files, such as video.
This commit is contained in:
276
fiv-view.c
276
fiv-view.c
@@ -19,6 +19,7 @@
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#include "fiv-io.h"
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#include "fiv-view.h"
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#include "fiv-context-menu.h"
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#include <math.h>
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#include <stdbool.h>
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@@ -87,8 +88,6 @@ struct _FivView {
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G_DEFINE_TYPE_EXTENDED(FivView, fiv_view, GTK_TYPE_WIDGET, 0,
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G_IMPLEMENT_INTERFACE(GTK_TYPE_SCROLLABLE, NULL))
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G_DEFINE_QUARK(fiv-view-cancellable-quark, fiv_view_cancellable)
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typedef struct _Dimensions {
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double width, height;
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} Dimensions;
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@@ -1153,281 +1152,10 @@ save_as(FivView *self, cairo_surface_t *frame)
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static GtkWidget *
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info_start_group(GtkWidget *vbox, const char *group)
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{
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GtkWidget *label = gtk_label_new(group);
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gtk_widget_set_hexpand(label, TRUE);
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gtk_widget_set_halign(label, GTK_ALIGN_FILL);
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PangoAttrList *attrs = pango_attr_list_new();
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pango_attr_list_insert(attrs, pango_attr_weight_new(PANGO_WEIGHT_BOLD));
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gtk_label_set_attributes(GTK_LABEL(label), attrs);
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pango_attr_list_unref(attrs);
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GtkWidget *grid = gtk_grid_new();
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GtkWidget *expander = gtk_expander_new(NULL);
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gtk_expander_set_label_widget(GTK_EXPANDER(expander), label);
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gtk_expander_set_expanded(GTK_EXPANDER(expander), TRUE);
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gtk_container_add(GTK_CONTAINER(expander), grid);
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gtk_grid_set_column_spacing(GTK_GRID(grid), 10);
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gtk_box_pack_start(GTK_BOX(vbox), expander, FALSE, FALSE, 0);
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return grid;
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}
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static GtkWidget *
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info_parse(char *tsv)
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{
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GtkSizeGroup *sg = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
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GtkWidget *vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
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const char *last_group = NULL;
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GtkWidget *grid = NULL;
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int line = 1, row = 0;
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for (char *nl; (nl = strchr(tsv, '\n')); line++, tsv = ++nl) {
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*nl = 0;
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if (nl > tsv && nl[-1] == '\r')
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nl[-1] = 0;
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char *group = tsv, *tag = strchr(group, '\t');
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if (!tag) {
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g_warning("ExifTool parse error on line %d", line);
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continue;
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}
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*tag++ = 0;
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for (char *p = group; *p; p++)
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if (*p == '_')
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*p = ' ';
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char *value = strchr(tag, '\t');
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if (!value) {
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g_warning("ExifTool parse error on line %d", line);
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continue;
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}
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*value++ = 0;
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if (!last_group || strcmp(last_group, group)) {
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grid = info_start_group(vbox, (last_group = group));
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row = 0;
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}
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GtkWidget *a = gtk_label_new(tag);
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gtk_size_group_add_widget(sg, a);
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gtk_label_set_selectable(GTK_LABEL(a), TRUE);
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gtk_label_set_xalign(GTK_LABEL(a), 0.);
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gtk_grid_attach(GTK_GRID(grid), a, 0, row, 1, 1);
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GtkWidget *b = gtk_label_new(value);
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gtk_label_set_selectable(GTK_LABEL(b), TRUE);
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gtk_label_set_xalign(GTK_LABEL(b), 0.);
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gtk_label_set_line_wrap(GTK_LABEL(b), TRUE);
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gtk_widget_set_hexpand(b, TRUE);
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gtk_grid_attach(GTK_GRID(grid), b, 1, row, 1, 1);
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row++;
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}
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g_object_unref(sg);
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return vbox;
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}
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static GtkWidget *
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info_make_bar(const char *message)
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{
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GtkWidget *info = gtk_info_bar_new();
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gtk_info_bar_set_message_type(GTK_INFO_BAR(info), GTK_MESSAGE_WARNING);
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GtkWidget *info_area = gtk_info_bar_get_content_area(GTK_INFO_BAR(info));
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gtk_container_add(GTK_CONTAINER(info_area), gtk_label_new(message));
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return info;
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}
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static void
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info_redirect_error(gpointer dialog, GError *error)
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{
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// The dialog has been closed and destroyed.
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if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
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g_error_free(error);
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return;
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}
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GtkContainer *content_area =
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GTK_CONTAINER(gtk_dialog_get_content_area(GTK_DIALOG(dialog)));
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gtk_container_foreach(content_area, (GtkCallback) gtk_widget_destroy, NULL);
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gtk_container_add(content_area, info_make_bar(error->message));
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if (g_error_matches(error, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT)) {
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gtk_box_pack_start(GTK_BOX(content_area),
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gtk_label_new("Please install ExifTool."), TRUE, FALSE, 12);
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}
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g_error_free(error);
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gtk_widget_show_all(GTK_WIDGET(dialog));
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}
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static gchar *
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bytes_to_utf8(GBytes *bytes)
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{
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gsize length = 0;
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gconstpointer data = g_bytes_get_data(bytes, &length);
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gchar *utf8 = data ? g_utf8_make_valid(data, length) : g_strdup("");
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g_bytes_unref(bytes);
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return utf8;
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}
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static void
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on_info_finished(GObject *source_object, GAsyncResult *res, gpointer user_data)
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{
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GError *error = NULL;
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GBytes *bytes_out = NULL, *bytes_err = NULL;
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if (!g_subprocess_communicate_finish(
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G_SUBPROCESS(source_object), res, &bytes_out, &bytes_err, &error)) {
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info_redirect_error(user_data, error);
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return;
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}
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gchar *out = bytes_to_utf8(bytes_out);
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gchar *err = bytes_to_utf8(bytes_err);
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GtkWidget *dialog = GTK_WIDGET(user_data);
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GtkWidget *content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
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gtk_container_foreach(
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GTK_CONTAINER(content_area), (GtkCallback) gtk_widget_destroy, NULL);
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GtkWidget *scroller = gtk_scrolled_window_new(NULL, NULL);
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gtk_box_pack_start(GTK_BOX(content_area), scroller, TRUE, TRUE, 0);
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GtkWidget *vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
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gtk_container_add(GTK_CONTAINER(scroller), vbox);
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if (*err)
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gtk_container_add(GTK_CONTAINER(vbox), info_make_bar(g_strstrip(err)));
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GtkWidget *info = info_parse(out);
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gtk_style_context_add_class(
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gtk_widget_get_style_context(info), "fiv-information");
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gtk_box_pack_start(GTK_BOX(vbox), info, TRUE, TRUE, 0);
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g_free(out);
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g_free(err);
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gtk_widget_show_all(dialog);
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}
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static void
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info_spawn(GtkWidget *dialog, const char *path, GBytes *bytes_in)
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{
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int flags = G_SUBPROCESS_FLAGS_STDOUT_PIPE | G_SUBPROCESS_FLAGS_STDERR_PIPE;
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if (bytes_in)
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flags |= G_SUBPROCESS_FLAGS_STDIN_PIPE;
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// TODO(p): Add a fallback to internal capabilities.
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// The simplest is to specify the filename and the resolution.
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GError *error = NULL;
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GSubprocess *subprocess = g_subprocess_new(flags, &error, "exiftool",
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"-tab", "-groupNames", "-duplicates", "-extractEmbedded", "--binary",
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"-quiet", "--", path, NULL);
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if (error) {
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info_redirect_error(dialog, error);
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return;
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}
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GCancellable *cancellable =
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g_object_get_qdata(G_OBJECT(dialog), fiv_view_cancellable_quark());
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g_subprocess_communicate_async(
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subprocess, bytes_in, cancellable, on_info_finished, dialog);
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g_object_unref(subprocess);
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}
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static void
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on_info_loaded(GObject *source_object, GAsyncResult *res, gpointer user_data)
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{
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gchar *file_data = NULL;
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gsize file_len = 0;
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GError *error = NULL;
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if (!g_file_load_contents_finish(
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G_FILE(source_object), res, &file_data, &file_len, NULL, &error)) {
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info_redirect_error(user_data, error);
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return;
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}
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GtkWidget *dialog = GTK_WIDGET(user_data);
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GBytes *bytes_in = g_bytes_new_take(file_data, file_len);
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info_spawn(dialog, "-", bytes_in);
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g_bytes_unref(bytes_in);
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}
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static void
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on_info_queried(GObject *source_object, GAsyncResult *res, gpointer user_data)
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{
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GFile *file = G_FILE(source_object);
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GError *error = NULL;
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GFileInfo *info = g_file_query_info_finish(file, res, &error);
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gboolean cancelled =
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error && g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED);
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g_clear_error(&error);
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if (cancelled)
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return;
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gchar *path = NULL;
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const char *target_uri = g_file_info_get_attribute_string(
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info, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI);
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if (target_uri) {
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GFile *target = g_file_new_for_uri(target_uri);
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path = g_file_get_path(target);
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g_object_unref(target);
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}
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g_object_unref(info);
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GtkWidget *dialog = GTK_WIDGET(user_data);
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GCancellable *cancellable =
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g_object_get_qdata(G_OBJECT(dialog), fiv_view_cancellable_quark());
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if (path) {
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info_spawn(dialog, path, NULL);
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g_free(path);
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} else {
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g_file_load_contents_async(file, cancellable, on_info_loaded, dialog);
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}
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}
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static void
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info(FivView *self)
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{
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GtkWidget *dialog = gtk_widget_new(GTK_TYPE_DIALOG,
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"use-header-bar", TRUE,
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"title", "Information",
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"transient-for", get_toplevel(GTK_WIDGET(self)),
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"destroy-with-parent", TRUE, NULL);
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// When the window closes, we cancel all asynchronous calls.
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GCancellable *cancellable = g_cancellable_new();
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g_object_set_qdata_full(G_OBJECT(dialog), fiv_view_cancellable_quark(),
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cancellable, g_object_unref);
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g_signal_connect_swapped(
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dialog, "destroy", G_CALLBACK(g_cancellable_cancel), cancellable);
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GtkWidget *spinner = gtk_spinner_new();
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gtk_spinner_start(GTK_SPINNER(spinner));
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gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))),
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spinner, TRUE, TRUE, 12);
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gtk_window_set_default_size(GTK_WINDOW(dialog), 600, 800);
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gtk_widget_show_all(dialog);
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// Mostly for URIs with no local path--we pipe these into ExifTool.
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GFile *file = g_file_new_for_uri(self->uri);
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gchar *parse_name = g_file_get_parse_name(file);
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gtk_header_bar_set_subtitle(
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GTK_HEADER_BAR(gtk_dialog_get_header_bar(GTK_DIALOG(dialog))),
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parse_name);
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g_free(parse_name);
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gchar *path = g_file_get_path(file);
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if (path) {
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info_spawn(dialog, path, NULL);
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g_free(path);
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} else {
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// Several GVfs schemes contain pseudo-symlinks
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// that don't give out filesystem paths directly.
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g_file_query_info_async(file, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI,
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G_FILE_QUERY_INFO_NONE, G_PRIORITY_DEFAULT, cancellable,
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on_info_queried, dialog);
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}
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g_object_unref(file);
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fiv_context_menu_information(get_toplevel(GTK_WIDGET(self)), self->uri);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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