Adding upstream version 3.38.2.upstream/3.38.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 377 insertions, 0 deletions

diff --git a/src/nautilus-canvas-view-container.c b/src/nautilus-canvas-view-container.c
new file mode 100644
index 0000000..a8b1f8a
--- /dev/null
+++ b/src/nautilus-canvas-view-container.c
@@ -0,0 +1,377 @@
+/* fm-icon-container.h - the container widget for file manager icons
+ *
+ *  Copyright (C) 2002 Sun Microsystems, Inc.
+ *
+ *  The Gnome Library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public License as
+ *  published by the Free Software Foundation; either version 2 of the
+ *  License, or (at your option) any later version.
+ *
+ *  The Gnome Library 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
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with the Gnome Library; see the file COPYING.LIB.  If not,
+ *  see <http://www.gnu.org/licenses/>.
+ *
+ *  Author: Michael Meeks <michael@ximian.com>
+ */
+
+#include "nautilus-canvas-view-container.h"
+
+#include <eel/eel-glib-extensions.h>
+#include <gio/gio.h>
+#include <glib/gi18n.h>
+#include <string.h>
+
+#include "nautilus-canvas-view.h"
+#include "nautilus-enums.h"
+#include "nautilus-global-preferences.h"
+#include "nautilus-thumbnails.h"
+
+struct _NautilusCanvasViewContainer
+{
+    NautilusCanvasContainer parent;
+
+    NautilusCanvasView *view;
+};
+
+G_DEFINE_TYPE (NautilusCanvasViewContainer, nautilus_canvas_view_container, NAUTILUS_TYPE_CANVAS_CONTAINER);
+
+static GQuark attribute_none_q;
+
+static NautilusCanvasView *
+get_canvas_view (NautilusCanvasContainer *container)
+{
+    /* Type unsafe comparison for performance */
+    return ((NautilusCanvasViewContainer *) container)->view;
+}
+
+static NautilusIconInfo *
+nautilus_canvas_view_container_get_icon_images (NautilusCanvasContainer *container,
+                                                NautilusCanvasIconData  *data,
+                                                int                      size,
+                                                gboolean                 for_drag_accept)
+{
+    NautilusCanvasView *canvas_view;
+    NautilusFile *file;
+    NautilusFileIconFlags flags;
+    NautilusIconInfo *icon_info;
+    gint scale;
+
+    file = (NautilusFile *) data;
+
+    g_assert (NAUTILUS_IS_FILE (file));
+    canvas_view = get_canvas_view (container);
+    g_return_val_if_fail (canvas_view != NULL, NULL);
+
+    flags = NAUTILUS_FILE_ICON_FLAGS_USE_EMBLEMS |
+            NAUTILUS_FILE_ICON_FLAGS_USE_THUMBNAILS;
+
+    if (for_drag_accept)
+    {
+        flags |= NAUTILUS_FILE_ICON_FLAGS_FOR_DRAG_ACCEPT;
+    }
+
+    scale = gtk_widget_get_scale_factor (GTK_WIDGET (canvas_view));
+    icon_info = nautilus_file_get_icon (file, size, scale, flags);
+
+    return icon_info;
+}
+
+static char *
+nautilus_canvas_view_container_get_icon_description (NautilusCanvasContainer *container,
+                                                     NautilusCanvasIconData  *data)
+{
+    NautilusFile *file;
+    char *mime_type;
+    const char *description;
+
+    file = NAUTILUS_FILE (data);
+    g_assert (NAUTILUS_IS_FILE (file));
+
+    mime_type = nautilus_file_get_mime_type (file);
+    description = g_content_type_get_description (mime_type);
+    g_free (mime_type);
+    return g_strdup (description);
+}
+
+static void
+nautilus_canvas_view_container_prioritize_thumbnailing (NautilusCanvasContainer *container,
+                                                        NautilusCanvasIconData  *data)
+{
+    NautilusFile *file;
+    char *uri;
+
+    file = (NautilusFile *) data;
+
+    g_assert (NAUTILUS_IS_FILE (file));
+
+    if (nautilus_file_is_thumbnailing (file))
+    {
+        uri = nautilus_file_get_uri (file);
+        nautilus_thumbnail_prioritize (uri);
+        g_free (uri);
+    }
+}
+
+static GQuark *
+get_quark_from_strv (gchar **value)
+{
+    GQuark *quark;
+    int i;
+
+    quark = g_new0 (GQuark, g_strv_length (value) + 1);
+    for (i = 0; value[i] != NULL; ++i)
+    {
+        quark[i] = g_quark_from_string (value[i]);
+    }
+
+    return quark;
+}
+
+/*
+ * Get the preference for which caption text should appear
+ * beneath icons.
+ */
+static GQuark *
+nautilus_canvas_view_container_get_icon_text_attributes_from_preferences (void)
+{
+    GQuark *attributes;
+    gchar **value;
+
+    value = g_settings_get_strv (nautilus_icon_view_preferences,
+                                 NAUTILUS_PREFERENCES_ICON_VIEW_CAPTIONS);
+    attributes = get_quark_from_strv (value);
+    g_strfreev (value);
+
+    /* We don't need to sanity check the attributes list even though it came
+     * from preferences.
+     *
+     * There are 2 ways that the values in the list could be bad.
+     *
+     * 1) The user picks "bad" values.  "bad" values are those that result in
+     *    there being duplicate attributes in the list.
+     *
+     * 2) Value stored in GConf are tampered with.  Its possible physically do
+     *    this by pulling the rug underneath GConf and manually editing its
+     *    config files.  Its also possible to use a third party GConf key
+     *    editor and store garbage for the keys in question.
+     *
+     * Thankfully, the Nautilus preferences machinery deals with both of
+     * these cases.
+     *
+     * In the first case, the preferences dialog widgetry prevents
+     * duplicate attributes by making "bad" choices insensitive.
+     *
+     * In the second case, the preferences getter (and also the auto storage) for
+     * string_array values are always valid members of the enumeration associated
+     * with the preference.
+     *
+     * So, no more error checking on attributes is needed here and we can return
+     * a the auto stored value.
+     */
+    return attributes;
+}
+
+static int
+quarkv_length (GQuark *attributes)
+{
+    int i;
+    i = 0;
+    while (attributes[i] != 0)
+    {
+        i++;
+    }
+    return i;
+}
+
+/**
+ * nautilus_canvas_view_get_icon_text_attribute_names:
+ *
+ * Get a list representing which text attributes should be displayed
+ * beneath an icon. The result is dependent on zoom level and possibly
+ * user configuration. Don't free the result.
+ * @view: NautilusCanvasView to query.
+ *
+ **/
+static GQuark *
+nautilus_canvas_view_container_get_icon_text_attribute_names (NautilusCanvasContainer *container,
+                                                              int                     *len)
+{
+    GQuark *attributes;
+    int piece_count;
+
+    const int pieces_by_level[] =
+    {
+        1,              /* NAUTILUS_ZOOM_LEVEL_SMALL */
+        2,              /* NAUTILUS_ZOOM_LEVEL_STANDARD */
+        3,              /* NAUTILUS_ZOOM_LEVEL_LARGE */
+        3,              /* NAUTILUS_ZOOM_LEVEL_LARGER */
+    };
+
+    piece_count = pieces_by_level[nautilus_canvas_container_get_zoom_level (container)];
+
+    attributes = nautilus_canvas_view_container_get_icon_text_attributes_from_preferences ();
+
+    *len = MIN (piece_count, quarkv_length (attributes));
+
+    return attributes;
+}
+
+/* This callback returns the text, both the editable part, and the
+ * part below that is not editable.
+ */
+static void
+nautilus_canvas_view_container_get_icon_text (NautilusCanvasContainer  *container,
+                                              NautilusCanvasIconData   *data,
+                                              char                    **editable_text,
+                                              char                    **additional_text,
+                                              gboolean                  include_invisible)
+{
+    GQuark *attributes;
+    char *text_array[4];
+    int i, j, num_attributes;
+    NautilusCanvasView *canvas_view;
+    NautilusFile *file;
+    gboolean use_additional;
+
+    file = NAUTILUS_FILE (data);
+
+    g_assert (NAUTILUS_IS_FILE (file));
+    g_assert (editable_text != NULL);
+    canvas_view = get_canvas_view (container);
+    g_return_if_fail (canvas_view != NULL);
+
+    use_additional = (additional_text != NULL);
+
+    /* Strip the suffix for nautilus object xml files. */
+    *editable_text = nautilus_file_get_display_name (file);
+
+    if (!use_additional)
+    {
+        return;
+    }
+
+    /* Find out what attributes go below each icon. */
+    attributes = nautilus_canvas_view_container_get_icon_text_attribute_names (container,
+                                                                               &num_attributes);
+
+    /* Get the attributes. */
+    j = 0;
+    for (i = 0; i < num_attributes; ++i)
+    {
+        char *text;
+        if (attributes[i] == attribute_none_q)
+        {
+            continue;
+        }
+        text = nautilus_file_get_string_attribute_q (file, attributes[i]);
+        if (text == NULL)
+        {
+            continue;
+        }
+        text_array[j++] = text;
+    }
+    text_array[j] = NULL;
+
+    /* Return them. */
+    if (j == 0)
+    {
+        *additional_text = NULL;
+    }
+    else if (j == 1)
+    {
+        /* Only one item, avoid the strdup + free */
+        *additional_text = text_array[0];
+    }
+    else
+    {
+        *additional_text = g_strjoinv ("\n", text_array);
+
+        for (i = 0; i < j; i++)
+        {
+            g_free (text_array[i]);
+        }
+    }
+
+    g_free (attributes);
+}
+
+static int
+nautilus_canvas_view_container_compare_icons (NautilusCanvasContainer *container,
+                                              NautilusCanvasIconData  *icon_a,
+                                              NautilusCanvasIconData  *icon_b)
+{
+    NautilusCanvasView *canvas_view;
+
+    canvas_view = get_canvas_view (container);
+    g_return_val_if_fail (canvas_view != NULL, 0);
+
+    /* Type unsafe comparisons for performance */
+    return nautilus_canvas_view_compare_files (canvas_view,
+                                               (NautilusFile *) icon_a,
+                                               (NautilusFile *) icon_b);
+}
+
+static int
+nautilus_canvas_view_container_compare_icons_by_name (NautilusCanvasContainer *container,
+                                                      NautilusCanvasIconData  *icon_a,
+                                                      NautilusCanvasIconData  *icon_b)
+{
+    return nautilus_file_compare_for_sort
+               (NAUTILUS_FILE (icon_a),
+               NAUTILUS_FILE (icon_b),
+               NAUTILUS_FILE_SORT_BY_DISPLAY_NAME,
+               FALSE, FALSE);
+}
+
+static void
+nautilus_canvas_view_container_class_init (NautilusCanvasViewContainerClass *klass)
+{
+    NautilusCanvasContainerClass *ic_class;
+
+    ic_class = &klass->parent_class;
+
+    attribute_none_q = g_quark_from_static_string ("none");
+
+    ic_class->get_icon_text = nautilus_canvas_view_container_get_icon_text;
+    ic_class->get_icon_images = nautilus_canvas_view_container_get_icon_images;
+    ic_class->get_icon_description = nautilus_canvas_view_container_get_icon_description;
+    ic_class->prioritize_thumbnailing = nautilus_canvas_view_container_prioritize_thumbnailing;
+
+    ic_class->compare_icons = nautilus_canvas_view_container_compare_icons;
+    ic_class->compare_icons_by_name = nautilus_canvas_view_container_compare_icons_by_name;
+}
+
+static void
+nautilus_canvas_view_container_init (NautilusCanvasViewContainer *canvas_container)
+{
+    gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (canvas_container)),
+                                 GTK_STYLE_CLASS_VIEW);
+}
+
+NautilusCanvasContainer *
+nautilus_canvas_view_container_construct (NautilusCanvasViewContainer *canvas_container,
+                                          NautilusCanvasView          *view)
+{
+    AtkObject *atk_obj;
+
+    g_return_val_if_fail (NAUTILUS_IS_CANVAS_VIEW (view), NULL);
+
+    canvas_container->view = view;
+    atk_obj = gtk_widget_get_accessible (GTK_WIDGET (canvas_container));
+    atk_object_set_name (atk_obj, _("Icon View"));
+
+    return NAUTILUS_CANVAS_CONTAINER (canvas_container);
+}
+
+NautilusCanvasContainer *
+nautilus_canvas_view_container_new (NautilusCanvasView *view)
+{
+    return nautilus_canvas_view_container_construct
+               (g_object_new (NAUTILUS_TYPE_CANVAS_VIEW_CONTAINER, NULL),
+               view);
+}