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--- src/os-patches/lib/widgets/ephy-file-chooser.c~ 2018-09-30 04:45:43.003990684 +0900
+++ src/os-patches/lib/widgets/ephy-file-chooser.c 2018-10-07 00:40:58.833626868 +0900
@@ -32,6 +32,12 @@
#include <gtk/gtk.h>
#include <glib/gi18n.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <glib/gstdio.h>
+
+#define MAX_PREVIEW_SIZE 180
+#define MAX_PREVIEW_SOURCE_SIZE 4096
static GtkFileFilter *
ephy_file_chooser_add_pattern_filter (GtkFileChooser *dialog,
@@ -89,6 +92,53 @@
return filth;
}
+static void
+update_preview_cb (GtkFileChooser *file_chooser,
+ gpointer data)
+{
+ GtkImage *preview = GTK_IMAGE (data);
+ g_autofree char *filename = gtk_file_chooser_get_preview_filename(file_chooser);
+
+ struct g_stat st_buf;
+ if (!filename || g_stat(filename, &st_buf) || (!S_ISREG(st_buf.st_mode))) {
+ gtk_file_chooser_set_preview_widget_active(file_chooser, FALSE);
+ return; // stat failed or file is not regular
+ }
+
+ gint preview_width = 0;
+ gint preview_height = 0;
+ GdkPixbufFormat *preview_format = gdk_pixbuf_get_file_info(filename,
+ &preview_width,
+ &preview_height);
+ if (!preview_format ||
+ preview_width <= 0 || preview_height <= 0 ||
+ preview_width > MAX_PREVIEW_SOURCE_SIZE ||
+ preview_height > MAX_PREVIEW_SOURCE_SIZE) {
+ gtk_file_chooser_set_preview_widget_active(file_chooser, FALSE);
+ return; // unpreviewable, 0px, or unsafely large
+ }
+
+ g_autoptr(GdkPixbuf) pixbuf = NULL;
+ if (preview_width > MAX_PREVIEW_SIZE || preview_height > MAX_PREVIEW_SIZE) {
+ pixbuf = gdk_pixbuf_new_from_file_at_size(filename,
+ MAX_PREVIEW_SIZE,
+ MAX_PREVIEW_SIZE,
+ NULL);
+ }
+ else {
+ pixbuf = gdk_pixbuf_new_from_file(filename, NULL);
+ }
+
+ pixbuf = gdk_pixbuf_apply_embedded_orientation(pixbuf);
+
+ gtk_widget_set_size_request(GTK_WIDGET (preview),
+ gdk_pixbuf_get_width(pixbuf) + 6,
+ gdk_pixbuf_get_height(pixbuf) + 6);
+
+ gtk_image_set_from_pixbuf(preview, pixbuf);
+ gtk_file_chooser_set_preview_widget_active(file_chooser, pixbuf != NULL);
+}
+
GtkFileChooser *
ephy_create_file_chooser (const char *title,
GtkWidget *parent,
@@ -121,6 +195,11 @@
gtk_file_chooser_native_set_accept_label (GTK_FILE_CHOOSER_NATIVE (dialog), _("_Save"));
}
+ GtkWidget *preview = gtk_image_new();
+ gtk_file_chooser_set_preview_widget(dialog, preview);
+ gtk_file_chooser_set_use_preview_label(dialog, FALSE);
+ g_signal_connect(dialog, "update-preview", G_CALLBACK(update_preview_cb), preview);
+
if (default_filter != EPHY_FILE_FILTER_NONE) {
filter[EPHY_FILE_FILTER_ALL_SUPPORTED] =
ephy_file_chooser_add_mime_filter
|