[libgd/wip/rishi/main-box: 5/7] Add GdMainBox
- From: Debarshi Ray <debarshir src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [libgd/wip/rishi/main-box: 5/7] Add GdMainBox
- Date: Wed, 23 Nov 2016 16:58:32 +0000 (UTC)
commit a5499261e2641e4c9a030e3e2c24d2f490beef83
Author: Debarshi Ray <debarshir gnome org>
Date: Wed Nov 23 14:43:21 2016 +0100
Add GdMainBox
https://bugzilla.gnome.org/show_bug.cgi?id=774914
libgd/gd-main-box.c | 1258 +++++++++++++++++++++++++++++++++++++++++++++++++++
libgd/gd-main-box.h | 63 +++
2 files changed, 1321 insertions(+), 0 deletions(-)
---
diff --git a/libgd/gd-main-box.c b/libgd/gd-main-box.c
new file mode 100644
index 0000000..8eb0524
--- /dev/null
+++ b/libgd/gd-main-box.c
@@ -0,0 +1,1258 @@
+/*
+ * Copyright (c) 2016 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Author: Debarshi Ray <debarshir gnome org>
+ *
+ */
+
+#include "gd-main-box.h"
+
+#include <cairo-gobject.h>
+
+#define MAIN_BOX_TYPE_INITIAL -1
+#define MAIN_BOX_DND_ICON_OFFSET 20
+#define MAIN_BOX_RUBBERBAND_SELECT_TRIGGER_LENGTH 32
+
+typedef struct _GdMainBoxPrivate GdMainBoxPrivate;
+
+struct _GdMainBoxPrivate
+{
+ GdMainBoxType current_type;
+ gboolean selection_mode;
+
+ GtkWidget *current_view;
+ GListModel *model;
+
+ gboolean track_motion;
+ gboolean rubberband_select;
+ GtkTreePath *rubberband_select_first_path;
+ GtkTreePath *rubberband_select_last_path;
+ int button_down_x;
+ int button_down_y;
+
+ gchar *button_press_item_path;
+
+ gchar *last_selected_id;
+};
+
+enum {
+ PROP_VIEW_TYPE = 1,
+ PROP_SELECTION_MODE,
+ PROP_MODEL,
+ NUM_PROPERTIES
+};
+
+enum {
+ ITEM_ACTIVATED = 1,
+ SELECTION_MODE_REQUEST,
+ VIEW_SELECTION_CHANGED,
+ NUM_SIGNALS
+};
+
+static GParamSpec *properties[NUM_PROPERTIES] = { NULL, };
+static guint signals[NUM_SIGNALS] = { 0, };
+
+G_DEFINE_TYPE_WITH_PRIVATE (GdMainBox, gd_main_box, GTK_TYPE_SCROLLED_WINDOW)
+
+static void
+gd_main_box_dispose (GObject *obj)
+{
+ GdMainBox *self = GD_MAIN_BOX (obj);
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ g_clear_object (&priv->model);
+
+ G_OBJECT_CLASS (gd_main_box_parent_class)->dispose (obj);
+}
+
+static void
+gd_main_box_finalize (GObject *obj)
+{
+ GdMainBox *self = GD_MAIN_BOX (obj);
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ g_free (priv->button_press_item_path);
+ g_free (priv->last_selected_id);
+
+ if (priv->rubberband_select_first_path)
+ gtk_tree_path_free (priv->rubberband_select_first_path);
+
+ if (priv->rubberband_select_last_path)
+ gtk_tree_path_free (priv->rubberband_select_last_path);
+
+ G_OBJECT_CLASS (gd_main_box_parent_class)->finalize (obj);
+}
+
+static void
+gd_main_box_init (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+ GtkStyleContext *context;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ /* so that we get constructed with the right view even at startup */
+ priv->current_type = MAIN_BOX_TYPE_INITIAL;
+
+ gtk_widget_set_hexpand (GTK_WIDGET (self), TRUE);
+ gtk_widget_set_vexpand (GTK_WIDGET (self), TRUE);
+ gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (self), GTK_SHADOW_IN);
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (self),
+ GTK_POLICY_NEVER,
+ GTK_POLICY_AUTOMATIC);
+
+ context = gtk_widget_get_style_context (GTK_WIDGET (self));
+ gtk_style_context_add_class (context, "documents-scrolledwin");
+}
+
+static void
+gd_main_box_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GdMainBox *self = GD_MAIN_BOX (object);
+
+ switch (property_id)
+ {
+ case PROP_VIEW_TYPE:
+ g_value_set_int (value, gd_main_box_get_view_type (self));
+ break;
+ case PROP_SELECTION_MODE:
+ g_value_set_boolean (value, gd_main_box_get_selection_mode (self));
+ break;
+ case PROP_MODEL:
+ g_value_set_object (value, gd_main_box_get_model (self));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gd_main_box_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GdMainBox *self = GD_MAIN_BOX (object);
+
+ switch (property_id)
+ {
+ case PROP_VIEW_TYPE:
+ gd_main_box_set_view_type (self, g_value_get_int (value));
+ break;
+ case PROP_SELECTION_MODE:
+ gd_main_box_set_selection_mode (self, g_value_get_boolean (value));
+ break;
+ case PROP_MODEL:
+ gd_main_box_set_model (self, g_value_get_object (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gd_main_box_class_init (GdMainBoxClass *klass)
+{
+ GObjectClass *oclass = G_OBJECT_CLASS (klass);
+
+ oclass->get_property = gd_main_box_get_property;
+ oclass->set_property = gd_main_box_set_property;
+ oclass->dispose = gd_main_box_dispose;
+ oclass->finalize = gd_main_box_finalize;
+
+ properties[PROP_VIEW_TYPE] =
+ g_param_spec_int ("view-type",
+ "View type",
+ "View type",
+ GD_MAIN_BOX_ICON,
+ GD_MAIN_BOX_LIST,
+ GD_MAIN_BOX_ICON,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_SELECTION_MODE] =
+ g_param_spec_boolean ("selection-mode",
+ "Selection mode",
+ "Whether the view is in selection mode",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_MODEL] =
+ g_param_spec_object ("model",
+ "Model",
+ "The GListModel",
+ G_TYPE_LIST_MODEL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ signals[ITEM_ACTIVATED] =
+ g_signal_new ("item-activated",
+ GD_TYPE_MAIN_BOX,
+ G_SIGNAL_RUN_LAST,
+ 0, NULL, NULL, NULL,
+ G_TYPE_NONE, 2,
+ G_TYPE_STRING,
+ GTK_TYPE_TREE_PATH);
+
+ signals[SELECTION_MODE_REQUEST] =
+ g_signal_new ("selection-mode-request",
+ GD_TYPE_MAIN_BOX,
+ G_SIGNAL_RUN_LAST,
+ 0, NULL, NULL, NULL,
+ G_TYPE_NONE, 0);
+
+ signals[VIEW_SELECTION_CHANGED] =
+ g_signal_new ("view-selection-changed",
+ GD_TYPE_MAIN_BOX,
+ G_SIGNAL_RUN_LAST,
+ 0, NULL, NULL, NULL,
+ G_TYPE_NONE, 0);
+
+ g_object_class_install_properties (oclass, NUM_PROPERTIES, properties);
+}
+
+static cairo_surface_t *
+gd_main_box_get_counter_icon (GdMainBox *self,
+ cairo_surface_t *base,
+ gint number)
+{
+ GtkStyleContext *context;
+ cairo_t *cr, *emblem_cr;
+ cairo_surface_t *surface, *emblem_surface;
+ gint width, height;
+ gint layout_width, layout_height;
+ gint emblem_size;
+ gdouble scale;
+ gchar *str;
+ PangoLayout *layout;
+ PangoAttrList *attr_list;
+ PangoAttribute *attr;
+ PangoFontDescription *desc;
+ GdkRGBA color;
+
+ context = gtk_widget_get_style_context (GTK_WIDGET (self));
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, "documents-counter");
+
+ width = cairo_image_surface_get_width (base);
+ height = cairo_image_surface_get_height (base);
+
+ surface = cairo_surface_create_similar (base, CAIRO_CONTENT_COLOR_ALPHA,
+ width, height);
+ cr = cairo_create (surface);
+ cairo_set_source_surface (cr, base, 0, 0);
+ cairo_paint (cr);
+
+ emblem_size = MIN (width / 2, height / 2);
+ emblem_surface = cairo_surface_create_similar (base, CAIRO_CONTENT_COLOR_ALPHA,
+ emblem_size, emblem_size);
+ emblem_cr = cairo_create (emblem_surface);
+ gtk_render_background (context, emblem_cr,
+ 0, 0, emblem_size, emblem_size);
+
+ if (number > 99)
+ number = 99;
+ if (number < -99)
+ number = -99;
+
+ str = g_strdup_printf ("%d", number);
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (self), str);
+ g_free (str);
+
+ pango_layout_get_pixel_size (layout, &layout_width, &layout_height);
+
+ /* scale the layout to be 0.5 of the size still available for drawing */
+ scale = (emblem_size * 0.50) / (MAX (layout_width, layout_height));
+ attr_list = pango_attr_list_new ();
+
+ attr = pango_attr_scale_new (scale);
+ pango_attr_list_insert (attr_list, attr);
+ pango_layout_set_attributes (layout, attr_list);
+
+ gtk_style_context_get (context, GTK_STATE_FLAG_NORMAL, "font", &desc, NULL);
+ pango_layout_set_font_description (layout, desc);
+ pango_font_description_free (desc);
+
+ gtk_style_context_get_color (context, 0, &color);
+ gdk_cairo_set_source_rgba (emblem_cr, &color);
+
+ /* update these values */
+ pango_layout_get_pixel_size (layout, &layout_width, &layout_height);
+
+ cairo_move_to (emblem_cr,
+ emblem_size / 2 - layout_width / 2,
+ emblem_size / 2 - layout_height / 2);
+
+ pango_cairo_show_layout (emblem_cr, layout);
+
+ g_object_unref (layout);
+ pango_attr_list_unref (attr_list);
+ cairo_destroy (emblem_cr);
+
+ cairo_set_source_surface (cr, emblem_surface,
+ width - emblem_size, height - emblem_size);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ cairo_surface_destroy (emblem_surface);
+ gtk_style_context_restore (context);
+
+ return surface;
+}
+
+static GdMainBoxGeneric *
+get_generic (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->current_view != NULL)
+ return GD_MAIN_BOX_GENERIC (priv->current_view);
+
+ return NULL;
+}
+
+static void
+do_select_row (GdMainBox *self,
+ GtkTreeIter *iter,
+ gboolean value)
+{
+ GdMainBoxPrivate *priv;
+ GtkTreeModel *model;
+ GtkTreeIter my_iter;
+ GtkTreePath *path;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ model = priv->model;
+ my_iter = *iter;
+
+ while (GTK_IS_TREE_MODEL_FILTER (model) ||
+ GTK_IS_TREE_MODEL_SORT (model))
+ {
+ GtkTreeIter child_iter;
+
+ if (GTK_IS_TREE_MODEL_FILTER (model))
+ {
+ GtkTreeModelFilter *filter;
+
+ filter = GTK_TREE_MODEL_FILTER (model);
+ gtk_tree_model_filter_convert_iter_to_child_iter (filter, &child_iter, &my_iter);
+ model = gtk_tree_model_filter_get_model (filter);
+ }
+ else
+ {
+ GtkTreeModelSort *sort;
+
+ sort = GTK_TREE_MODEL_SORT (model);
+ gtk_tree_model_sort_convert_iter_to_child_iter (sort, &child_iter, &my_iter);
+ model = gtk_tree_model_sort_get_model (sort);
+ }
+
+ my_iter = child_iter;
+ }
+
+ if (GTK_IS_LIST_STORE (model))
+ {
+ gtk_list_store_set (GTK_LIST_STORE (model), &my_iter,
+ GD_MAIN_COLUMN_SELECTED, value,
+ -1);
+ }
+ else
+ {
+ gtk_tree_store_set (GTK_TREE_STORE (model), &my_iter,
+ GD_MAIN_COLUMN_SELECTED, value,
+ -1);
+ }
+
+ /* And tell the view model that something changed */
+ path = gtk_tree_model_get_path (priv->model, iter);
+ if (path)
+ {
+ gtk_tree_model_row_changed (priv->model, path, iter);
+ gtk_tree_path_free (path);
+ }
+}
+
+static void
+selection_mode_do_select_range (GdMainBox *self,
+ GtkTreeIter *first_element,
+ GtkTreeIter *last_element)
+{
+ GdMainBoxPrivate *priv;
+ GtkTreeIter iter;
+ GtkTreePath *path, *last_path;
+ gboolean equal;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ path = gtk_tree_model_get_path (priv->model, first_element);
+ last_path = gtk_tree_model_get_path (priv->model, last_element);
+ if (gtk_tree_path_compare (path, last_path) > 0)
+ {
+ gtk_tree_path_free (last_path);
+ last_path = path;
+ iter = *last_element;
+ }
+ else
+ {
+ gtk_tree_path_free (path);
+ iter = *first_element;
+ }
+
+ do
+ {
+ do_select_row (self, &iter, TRUE);
+
+ path = gtk_tree_model_get_path (priv->model, &iter);
+ equal = (gtk_tree_path_compare (path, last_path) == 0);
+ gtk_tree_path_free (path);
+
+ if (equal)
+ break;
+ }
+ while (gtk_tree_model_iter_next (priv->model, &iter));
+
+ gtk_tree_path_free (last_path);
+}
+
+static void
+selection_mode_select_range (GdMainBox *self,
+ GtkTreeIter *iter)
+{
+ GdMainBoxPrivate *priv;
+ GtkTreeIter other;
+ gboolean found = FALSE;
+ gboolean selected;
+ char *id;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->last_selected_id != NULL &&
+ gtk_tree_model_get_iter_first (priv->model, &other))
+ {
+ do
+ {
+ gtk_tree_model_get (priv->model, &other,
+ GD_MAIN_COLUMN_ID, &id,
+ -1);
+ if (g_strcmp0 (id, priv->last_selected_id) == 0)
+ {
+ g_free (id);
+ found = TRUE;
+ break;
+ }
+ g_free (id);
+ }
+ while (gtk_tree_model_iter_next (priv->model, &other));
+ }
+
+ if (!found)
+ {
+ other = *iter;
+ while (gtk_tree_model_iter_previous (priv->model, &other))
+ {
+ gtk_tree_model_get (priv->model, &other,
+ GD_MAIN_COLUMN_SELECTED, &selected,
+ -1);
+
+ if (selected)
+ {
+ found = TRUE;
+ break;
+ }
+ }
+ }
+
+ if (!found)
+ {
+ other = *iter;
+ while (gtk_tree_model_iter_next (priv->model, &other))
+ {
+ gtk_tree_model_get (priv->model, &other,
+ GD_MAIN_COLUMN_SELECTED, &selected,
+ -1);
+ if (selected)
+ {
+ found = TRUE;
+ break;
+ }
+ }
+ }
+
+ if (found)
+ selection_mode_do_select_range (self, iter, &other);
+ else
+ {
+ /* no other selected element found, just select the iter */
+ do_select_row (self, iter, TRUE);
+ }
+
+ g_signal_emit (self, signals[VIEW_SELECTION_CHANGED], 0);
+}
+
+static gboolean
+toggle_selection_for_path (GdMainBox *self,
+ GtkTreePath *path,
+ gboolean select_range)
+{
+ GdMainBoxPrivate *priv;
+ gboolean selected;
+ GtkTreeIter iter;
+ char *id;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->model == NULL)
+ return FALSE;
+
+ if (!gtk_tree_model_get_iter (priv->model, &iter, path))
+ return FALSE;
+
+ gtk_tree_model_get (priv->model, &iter,
+ GD_MAIN_COLUMN_SELECTED, &selected,
+ -1);
+
+ if (selected)
+ {
+ do_select_row (self, &iter, FALSE);
+ }
+ else if (!selected)
+ {
+ if (select_range)
+ selection_mode_select_range (self, &iter);
+ else
+ {
+ gtk_tree_model_get (priv->model, &iter,
+ GD_MAIN_COLUMN_ID, &id,
+ -1);
+ g_free (priv->last_selected_id);
+ priv->last_selected_id = id;
+
+ do_select_row (self, &iter, TRUE);
+ }
+ }
+
+ g_signal_emit (self, signals[VIEW_SELECTION_CHANGED], 0);
+
+ return FALSE;
+}
+
+static gboolean
+activate_item_for_path (GdMainBox *self,
+ GtkTreePath *path)
+{
+ GdMainBoxPrivate *priv;
+ GtkTreeIter iter;
+ gchar *id;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->model == NULL)
+ return FALSE;
+
+ if (!gtk_tree_model_get_iter (priv->model, &iter, path))
+ return FALSE;
+
+ gtk_tree_model_get (priv->model, &iter,
+ GD_MAIN_COLUMN_ID, &id,
+ -1);
+
+ g_signal_emit (self, signals[ITEM_ACTIVATED], 0, id, path);
+ g_free (id);
+
+ return FALSE;
+}
+
+static gboolean
+on_button_release_selection_mode (GdMainBox *self,
+ GdkEventButton *event,
+ GtkTreePath *path)
+{
+ return toggle_selection_for_path (self, path, ((event->state & GDK_SHIFT_MASK) != 0));
+}
+
+static gboolean
+on_button_release_view_mode (GdMainBox *self,
+ GdkEventButton *event,
+ GtkTreePath *path)
+{
+ return activate_item_for_path (self, path);
+}
+
+static gboolean
+event_triggers_selection_mode (GdkEventButton *event)
+{
+ return
+ (event->button == 3) ||
+ ((event->button == 1) && (event->state & GDK_CONTROL_MASK));
+}
+
+static gboolean
+on_button_release_event (GtkWidget *view,
+ GdkEventButton *event,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+ GdMainBoxPrivate *priv;
+ GdMainBoxGeneric *generic = get_generic (self);
+ GtkTreePath *path, *start_path, *end_path, *tmp_path;
+ GtkTreeIter iter;
+ gchar *button_release_item_path;
+ gboolean selection_mode;
+ gboolean res, same_item = FALSE;
+ gboolean is_selected;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ /* eat double/triple click events */
+ if (event->type != GDK_BUTTON_RELEASE)
+ return TRUE;
+
+ path = gd_main_box_generic_get_path_at_pos (generic, event->x, event->y);
+
+ if (path != NULL)
+ {
+ button_release_item_path = gtk_tree_path_to_string (path);
+ if (g_strcmp0 (priv->button_press_item_path, button_release_item_path) == 0)
+ same_item = TRUE;
+
+ g_free (button_release_item_path);
+ }
+
+ g_free (priv->button_press_item_path);
+ priv->button_press_item_path = NULL;
+
+ priv->track_motion = FALSE;
+ if (priv->rubberband_select)
+ {
+ priv->rubberband_select = FALSE;
+ gd_main_box_generic_set_rubberband_range (get_generic (self), NULL, NULL);
+ if (priv->rubberband_select_last_path)
+ {
+ if (!priv->selection_mode)
+ g_signal_emit (self, signals[SELECTION_MODE_REQUEST], 0);
+ if (!priv->selection_mode)
+ {
+ res = FALSE;
+ goto out;
+ }
+
+ start_path = gtk_tree_path_copy (priv->rubberband_select_first_path);
+ end_path = gtk_tree_path_copy (priv->rubberband_select_last_path);
+ if (gtk_tree_path_compare (start_path, end_path) > 0)
+ {
+ tmp_path = start_path;
+ start_path = end_path;
+ end_path = tmp_path;
+ }
+
+ while (gtk_tree_path_compare (start_path, end_path) <= 0)
+ {
+ if (gtk_tree_model_get_iter (priv->model,
+ &iter, start_path))
+ {
+ gtk_tree_model_get (priv->model, &iter,
+ GD_MAIN_COLUMN_SELECTED, &is_selected,
+ -1);
+ do_select_row (self, &iter, !is_selected);
+ }
+
+ gtk_tree_path_next (start_path);
+ }
+
+ g_signal_emit (self, signals[VIEW_SELECTION_CHANGED], 0);
+
+ gtk_tree_path_free (start_path);
+ gtk_tree_path_free (end_path);
+ }
+
+ g_clear_pointer (&priv->rubberband_select_first_path,
+ gtk_tree_path_free);
+ g_clear_pointer (&priv->rubberband_select_last_path,
+ gtk_tree_path_free);
+
+ res = TRUE;
+ goto out;
+ }
+
+ if (!same_item)
+ {
+ res = FALSE;
+ goto out;
+ }
+
+ selection_mode = priv->selection_mode;
+
+ if (!selection_mode)
+ {
+ if (event_triggers_selection_mode (event))
+ {
+ g_signal_emit (self, signals[SELECTION_MODE_REQUEST], 0);
+ if (!priv->selection_mode)
+ {
+ res = FALSE;
+ goto out;
+ }
+ selection_mode = priv->selection_mode;
+ }
+ }
+
+ if (selection_mode)
+ res = on_button_release_selection_mode (self, event, path);
+ else
+ res = on_button_release_view_mode (self, event, path);
+
+ out:
+ gtk_tree_path_free (path);
+ return res;
+}
+
+static gboolean
+on_button_press_event (GtkWidget *view,
+ GdkEventButton *event,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+ GdMainBoxPrivate *priv;
+ GdMainBoxGeneric *generic = get_generic (self);
+ GtkTreePath *path;
+ GList *selection, *l;
+ GtkTreePath *sel_path;
+ gboolean found = FALSE;
+ gboolean force_selection;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ path = gd_main_box_generic_get_path_at_pos (generic, event->x, event->y);
+
+ if (path != NULL)
+ priv->button_press_item_path = gtk_tree_path_to_string (path);
+
+ force_selection = event_triggers_selection_mode (event);
+ if (!priv->selection_mode && !force_selection)
+ {
+ gtk_tree_path_free (path);
+ return FALSE;
+ }
+
+ if (path && !force_selection)
+ {
+ selection = gd_main_box_get_selection (self);
+
+ for (l = selection; l != NULL; l = l->next)
+ {
+ sel_path = l->data;
+ if (gtk_tree_path_compare (path, sel_path) == 0)
+ {
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (selection != NULL)
+ g_list_free_full (selection, (GDestroyNotify) gtk_tree_path_free);
+ }
+
+ /* if we did not find the item in the selection, block
+ * drag and drop, while in selection mode
+ */
+ if (!found)
+ {
+ priv->track_motion = TRUE;
+ priv->rubberband_select = FALSE;
+ priv->rubberband_select_first_path = NULL;
+ priv->rubberband_select_last_path = NULL;
+ priv->button_down_x = event->x;
+ priv->button_down_y = event->y;
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gboolean
+on_motion_event (GtkWidget *widget,
+ GdkEventMotion *event,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+ GdMainBoxPrivate *priv;
+ GtkTreePath *path;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->track_motion)
+ {
+ if (!priv->rubberband_select &&
+ (event->x - priv->button_down_x) * (event->x - priv->button_down_x) +
+ (event->y - priv->button_down_y) * (event->y - priv->button_down_y) >
+ MAIN_BOX_RUBBERBAND_SELECT_TRIGGER_LENGTH * MAIN_BOX_RUBBERBAND_SELECT_TRIGGER_LENGTH)
+ {
+ priv->rubberband_select = TRUE;
+ if (priv->button_press_item_path)
+ {
+ priv->rubberband_select_first_path =
+ gtk_tree_path_new_from_string (priv->button_press_item_path);
+ }
+ }
+
+ if (priv->rubberband_select)
+ {
+ path = gd_main_box_generic_get_path_at_pos (get_generic (self), event->x, event->y);
+ if (path != NULL)
+ {
+ if (priv->rubberband_select_first_path == NULL)
+ priv->rubberband_select_first_path = gtk_tree_path_copy (path);
+
+ if (priv->rubberband_select_last_path == NULL ||
+ gtk_tree_path_compare (priv->rubberband_select_last_path, path) != 0)
+ {
+ if (priv->rubberband_select_last_path)
+ gtk_tree_path_free (priv->rubberband_select_last_path);
+ priv->rubberband_select_last_path = path;
+
+ gd_main_box_generic_set_rubberband_range (get_generic (self),
+ priv->rubberband_select_first_path,
+ priv->rubberband_select_last_path);
+ }
+ else
+ gtk_tree_path_free (path);
+ }
+ }
+ }
+ return FALSE;
+}
+
+static cairo_surface_t *
+copy_surface (cairo_surface_t *surface)
+{
+ cairo_surface_t *copy;
+ cairo_t *cr;
+
+ copy = cairo_surface_create_similar (surface, CAIRO_CONTENT_COLOR_ALPHA,
+ cairo_image_surface_get_width (surface),
+ cairo_image_surface_get_height (surface));
+ cr = cairo_create (copy);
+ cairo_set_source_surface (cr, surface, 0, 0);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ return copy;
+}
+
+static void
+on_drag_begin (GdMainBoxGeneric *generic,
+ GdkDragContext *drag_context,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->button_press_item_path != NULL)
+ {
+ gboolean res;
+ GtkTreeIter iter;
+ gpointer data;
+ cairo_surface_t *surface = NULL;
+ GtkTreePath *path;
+ GType column_gtype;
+
+ path = gtk_tree_path_new_from_string (priv->button_press_item_path);
+ res = gtk_tree_model_get_iter (priv->model,
+ &iter, path);
+ if (res)
+ gtk_tree_model_get (priv->model, &iter,
+ GD_MAIN_COLUMN_ICON, &data,
+ -1);
+
+ column_gtype = gtk_tree_model_get_column_type (priv->model,
+ GD_MAIN_COLUMN_ICON);
+
+ if (column_gtype == CAIRO_GOBJECT_TYPE_SURFACE)
+ {
+ surface = copy_surface (data);
+ cairo_surface_destroy (data);
+ }
+ else if (column_gtype == GDK_TYPE_PIXBUF)
+ {
+ surface = gdk_cairo_surface_create_from_pixbuf (data, 1, NULL);
+ g_object_unref (data);
+ }
+ else
+ g_assert_not_reached ();
+
+ if (priv->selection_mode &&
+ surface != NULL)
+ {
+ GList *selection;
+ cairo_surface_t *counter;
+
+ selection = gd_main_box_get_selection (self);
+
+ if (g_list_length (selection) > 1)
+ {
+ counter = gd_main_box_get_counter_icon (self, surface, g_list_length (selection));
+ cairo_surface_destroy (surface);
+ surface = counter;
+ }
+
+ if (selection != NULL)
+ g_list_free_full (selection, (GDestroyNotify) gtk_tree_path_free);
+ }
+
+ if (surface != NULL)
+ {
+ cairo_surface_set_device_offset (surface,
+ -MAIN_BOX_DND_ICON_OFFSET,
+ -MAIN_BOX_DND_ICON_OFFSET);
+ gtk_drag_set_icon_surface (drag_context, surface);
+ cairo_surface_destroy (surface);
+ }
+
+ gtk_tree_path_free (path);
+ }
+}
+
+static void
+on_view_path_activated (GdMainBox *self,
+ GtkTreePath *path)
+{
+ GdMainBoxPrivate *priv;
+ GdkModifierType state;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ gtk_get_current_event_state (&state);
+
+ if (priv->selection_mode || (state & GDK_CONTROL_MASK) != 0)
+ {
+ if (!priv->selection_mode)
+ g_signal_emit (self, signals[SELECTION_MODE_REQUEST], 0);
+ toggle_selection_for_path (self, path, ((state & GDK_SHIFT_MASK) != 0));
+ }
+ else
+ activate_item_for_path (self, path);
+}
+
+static void
+on_list_view_row_activated (GtkTreeView *tree_view,
+ GtkTreePath *path,
+ GtkTreeViewColumn *column,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+ on_view_path_activated (self, path);
+}
+
+static void
+on_icon_view_item_activated (GtkIconView *icon_view,
+ GtkTreePath *path,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+ on_view_path_activated (self, path);
+}
+
+static void
+on_view_selection_changed (GtkWidget *view,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+
+ g_signal_emit (self, signals[VIEW_SELECTION_CHANGED], 0);
+}
+
+static void
+on_row_deleted_cb (GtkTreeModel *model,
+ GtkTreePath *path,
+ gpointer user_data)
+{
+ GdMainBox *self = user_data;
+
+ g_signal_emit (self, signals[VIEW_SELECTION_CHANGED], 0);
+}
+
+static void
+gd_main_box_apply_model (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+ GdMainBoxGeneric *generic = get_generic (self);
+
+ priv = gd_main_box_get_instance_private (self);
+ gd_main_box_generic_set_model (generic, priv->model);
+}
+
+static void
+gd_main_box_apply_selection_mode (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+ GdMainBoxGeneric *generic = get_generic (self);
+
+ priv = gd_main_box_get_instance_private (self);
+
+ gd_main_box_generic_set_selection_mode (generic, priv->selection_mode);
+
+ if (!priv->selection_mode &&
+ priv->model != NULL)
+ gd_main_box_unselect_all (self);
+}
+
+static void
+gd_main_box_rebuild (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+ GtkStyleContext *context;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (priv->current_view != NULL)
+ gtk_widget_destroy (priv->current_view);
+
+ if (priv->current_type == GD_MAIN_BOX_ICON)
+ {
+ priv->current_view = gd_main_icon_view_new ();
+ g_signal_connect (priv->current_view, "item-activated",
+ G_CALLBACK (on_icon_view_item_activated), self);
+ }
+ else
+ {
+ priv->current_view = gd_main_list_view_new ();
+ g_signal_connect (priv->current_view, "row-activated",
+ G_CALLBACK (on_list_view_row_activated), self);
+ }
+
+ context = gtk_widget_get_style_context (priv->current_view);
+ gtk_style_context_add_class (context, "content-view");
+
+ gtk_container_add (GTK_CONTAINER (self), priv->current_view);
+
+ g_signal_connect (priv->current_view, "button-press-event",
+ G_CALLBACK (on_button_press_event), self);
+ g_signal_connect (priv->current_view, "button-release-event",
+ G_CALLBACK (on_button_release_event), self);
+ g_signal_connect (priv->current_view, "motion-notify-event",
+ G_CALLBACK (on_motion_event), self);
+ g_signal_connect_after (priv->current_view, "drag-begin",
+ G_CALLBACK (on_drag_begin), self);
+ g_signal_connect (priv->current_view, "view-selection-changed",
+ G_CALLBACK (on_view_selection_changed), self);
+
+ gd_main_box_apply_model (self);
+ gd_main_box_apply_selection_mode (self);
+
+ gtk_widget_show_all (GTK_WIDGET (self));
+}
+
+GdMainBox *
+gd_main_box_new (GdMainBoxType type)
+{
+ return g_object_new (GD_TYPE_MAIN_BOX,
+ "view-type", type,
+ NULL);
+}
+
+void
+gd_main_box_set_view_type (GdMainBox *self,
+ GdMainBoxType type)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (type != priv->current_type)
+ {
+ priv->current_type = type;
+ gd_main_box_rebuild (self);
+
+ g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_VIEW_TYPE]);
+ }
+}
+
+GdMainBoxType
+gd_main_box_get_view_type (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+ return priv->current_type;
+}
+
+void
+gd_main_box_set_selection_mode (GdMainBox *self,
+ gboolean selection_mode)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (selection_mode != priv->selection_mode)
+ {
+ priv->selection_mode = selection_mode;
+ gd_main_box_apply_selection_mode (self);
+ g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SELECTION_MODE]);
+ }
+}
+
+gboolean
+gd_main_box_get_selection_mode (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+ return priv->selection_mode;
+}
+
+/**
+ * gd_main_box_set_model:
+ * @self:
+ * @model: (allow-none):
+ *
+ */
+void
+gd_main_box_set_model (GdMainBox *self,
+ GtkTreeModel *model)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ if (model != priv->model)
+ {
+ if (priv->model)
+ g_signal_handlers_disconnect_by_func (priv->model,
+ on_row_deleted_cb, self);
+
+ g_clear_object (&priv->model);
+
+ if (model)
+ {
+ priv->model = g_object_ref (model);
+ g_signal_connect (priv->model, "row-deleted",
+ G_CALLBACK (on_row_deleted_cb), self);
+ }
+ else
+ {
+ priv->model = NULL;
+ }
+
+ gd_main_box_apply_model (self);
+ g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODEL]);
+ }
+}
+
+/**
+ * gd_main_box_get_model:
+ * @self:
+ *
+ * Returns: (transfer none):
+ */
+GtkTreeModel *
+gd_main_box_get_model (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+ return priv->model;
+}
+
+/**
+ * gd_main_box_get_generic_view:
+ * @self:
+ *
+ * Returns: (transfer none):
+ */
+GtkWidget *
+gd_main_box_get_generic_view (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+
+ priv = gd_main_box_get_instance_private (self);
+ return priv->current_view;
+}
+
+static gboolean
+build_selection_list_foreach (GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter,
+ gpointer user_data)
+{
+ GList **sel = user_data;
+ gboolean is_selected;
+
+ gtk_tree_model_get (model, iter,
+ GD_MAIN_COLUMN_SELECTED, &is_selected,
+ -1);
+
+ if (is_selected)
+ *sel = g_list_prepend (*sel, gtk_tree_path_copy (path));
+
+ return FALSE;
+}
+
+/**
+ * gd_main_box_get_selection:
+ * @self:
+ *
+ * Returns: (element-type GtkTreePath) (transfer full):
+ */
+GList *
+gd_main_box_get_selection (GdMainBox *self)
+{
+ GdMainBoxPrivate *priv;
+ GList *retval = NULL;
+
+ priv = gd_main_box_get_instance_private (self);
+
+ gtk_tree_model_foreach (priv->model,
+ build_selection_list_foreach,
+ &retval);
+
+ return g_list_reverse (retval);
+}
+
+void
+gd_main_box_select_all (GdMainBox *self)
+{
+ GdMainBoxGeneric *generic = get_generic (self);
+
+ gd_main_box_generic_select_all (generic);
+}
+
+void
+gd_main_box_unselect_all (GdMainBox *self)
+{
+ GdMainBoxGeneric *generic = get_generic (self);
+
+ gd_main_box_generic_unselect_all (generic);
+}
diff --git a/libgd/gd-main-box.h b/libgd/gd-main-box.h
new file mode 100644
index 0000000..1e5a9ca
--- /dev/null
+++ b/libgd/gd-main-box.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2016 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Author: Debarshi Ray <debarshir gnome org>
+ *
+ */
+
+#ifndef __GD_MAIN_BOX_H__
+#define __GD_MAIN_BOX_H__
+
+#include <gio/gio.h>
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GD_TYPE_MAIN_BOX gd_main_box_get_type()
+G_DECLARE_DERIVABLE_TYPE (GdMainBox, gd_main_box, GD, MAIN_BOX, GtkScrolledWindow)
+
+typedef enum
+{
+ GD_MAIN_BOX_ICON,
+ GD_MAIN_BOX_LIST
+} GdMainBoxType;
+
+struct _GdMainBoxClass
+{
+ GtkScrolledWindowClass parent_class;
+};
+
+GtkWidget * gd_main_box_new (GdMainBoxType type);
+void gd_main_box_set_box_type (GdMainBox *self, GdMainBoxType type);
+GdMainBoxType gd_main_box_get_box_type (GdMainBox *self);
+
+void gd_main_box_set_selection_mode (GdMainBox *self, gboolean selection_mode);
+gboolean gd_main_box_get_selection_mode (GdMainBox *self);
+
+GList * gd_main_box_get_selection (GdMainBox *self);
+
+void gd_main_box_select_all (GdMainBox *self);
+void gd_main_box_unselect_all (GdMainBox *self);
+
+void gd_main_box_set_model (GdMainBox *self, GListModel *model);
+
+GtkWidget * gd_main_box_get_generic_box (GdMainBox *self);
+
+G_END_DECLS
+
+#endif /* __GD_MAIN_BOX_H__ */
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