1 files changed, 384 insertions, 0 deletions
diff --git a/e-util/e-table-selection-model.c b/e-util/e-table-selection-model.c
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+++ b/e-util/e-table-selection-model.c
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+/*
+ * 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) version 3.
+ *
+ * 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 the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ *		Chris Lahey <clahey@ximian.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+
+#include <gdk/gdkkeysyms.h>
+
+#include <glib/gi18n.h>
+
+#include "e-table-selection-model.h"
+
+G_DEFINE_TYPE (ETableSelectionModel, e_table_selection_model, E_SELECTION_MODEL_ARRAY_TYPE)
+
+static gint etsm_get_row_count (ESelectionModelArray *esm);
+
+enum {
+	PROP_0,
+	PROP_MODEL,
+	PROP_HEADER
+};
+
+static void
+save_to_hash (gint model_row,
+              gpointer closure)
+{
+	ETableSelectionModel *etsm = closure;
+	const gchar *key = e_table_model_get_save_id (etsm->model, model_row);
+
+	g_hash_table_insert (etsm->hash, (gpointer) key, (gpointer) key);
+}
+
+static void
+free_hash (ETableSelectionModel *etsm)
+{
+	if (etsm->hash) {
+		g_hash_table_destroy (etsm->hash);
+		etsm->hash = NULL;
+	}
+	if (etsm->cursor_id)
+		g_free (etsm->cursor_id);
+	etsm->cursor_id = NULL;
+}
+
+static void
+model_pre_change (ETableModel *etm,
+                  ETableSelectionModel *etsm)
+{
+	free_hash (etsm);
+
+	if (etsm->model && e_table_model_has_save_id (etsm->model)) {
+		gint cursor_row;
+
+		etsm->hash = g_hash_table_new_full (
+			g_str_hash, g_str_equal,
+			(GDestroyNotify) g_free,
+			(GDestroyNotify) NULL);
+		e_selection_model_foreach (E_SELECTION_MODEL (etsm), save_to_hash, etsm);
+
+		g_object_get (
+			etsm,
+			"cursor_row", &cursor_row,
+			NULL);
+		g_free (etsm->cursor_id);
+		if (cursor_row != -1)
+			etsm->cursor_id = e_table_model_get_save_id (etm, cursor_row);
+		else
+			etsm->cursor_id = NULL;
+	}
+}
+
+static gint
+model_changed_idle (ETableSelectionModel *etsm)
+{
+	ETableModel *etm = etsm->model;
+
+	e_selection_model_clear (E_SELECTION_MODEL (etsm));
+
+	if (etsm->cursor_id && etm && e_table_model_has_save_id (etm)) {
+		gint row_count = e_table_model_row_count (etm);
+		gint cursor_row = -1;
+		gint cursor_col = -1;
+		gint i;
+		e_selection_model_array_confirm_row_count (E_SELECTION_MODEL_ARRAY (etsm));
+		for (i = 0; i < row_count; i++) {
+			gchar *save_id = e_table_model_get_save_id (etm, i);
+			if (g_hash_table_lookup (etsm->hash, save_id))
+				e_selection_model_change_one_row (E_SELECTION_MODEL (etsm), i, TRUE);
+
+			if (etsm->cursor_id && !strcmp (etsm->cursor_id, save_id)) {
+				cursor_row = i;
+				cursor_col = e_selection_model_cursor_col (E_SELECTION_MODEL (etsm));
+				if (cursor_col == -1) {
+					if (etsm->eth) {
+						cursor_col = e_table_header_prioritized_column (etsm->eth);
+					} else
+						cursor_col = 0;
+				}
+				e_selection_model_change_cursor (E_SELECTION_MODEL (etsm), cursor_row, cursor_col);
+				g_free (etsm->cursor_id);
+				etsm->cursor_id = NULL;
+			}
+			g_free (save_id);
+		}
+		free_hash (etsm);
+		e_selection_model_cursor_changed (E_SELECTION_MODEL (etsm), cursor_row, cursor_col);
+		e_selection_model_selection_changed (E_SELECTION_MODEL (etsm));
+	}
+	etsm->model_changed_idle_id = 0;
+	return FALSE;
+}
+
+static void
+model_changed (ETableModel *etm,
+               ETableSelectionModel *etsm)
+{
+	e_selection_model_clear (E_SELECTION_MODEL (etsm));
+	if (!etsm->model_changed_idle_id && etm && e_table_model_has_save_id (etm)) {
+		etsm->model_changed_idle_id = g_idle_add_full (G_PRIORITY_HIGH, (GSourceFunc) model_changed_idle, etsm, NULL);
+	}
+}
+
+static void
+model_row_changed (ETableModel *etm,
+                   gint row,
+                   ETableSelectionModel *etsm)
+{
+	free_hash (etsm);
+}
+
+static void
+model_cell_changed (ETableModel *etm,
+                    gint col,
+                    gint row,
+                    ETableSelectionModel *etsm)
+{
+	free_hash (etsm);
+}
+
+#if 1
+static void
+model_rows_inserted (ETableModel *etm,
+                     gint row,
+                     gint count,
+                     ETableSelectionModel *etsm)
+{
+	e_selection_model_array_insert_rows (E_SELECTION_MODEL_ARRAY (etsm), row, count);
+	free_hash (etsm);
+}
+
+static void
+model_rows_deleted (ETableModel *etm,
+                    gint row,
+                    gint count,
+                    ETableSelectionModel *etsm)
+{
+	e_selection_model_array_delete_rows (E_SELECTION_MODEL_ARRAY (etsm), row, count);
+	free_hash (etsm);
+}
+
+#else
+
+static void
+model_rows_inserted (ETableModel *etm,
+                     gint row,
+                     gint count,
+                     ETableSelectionModel *etsm)
+{
+	model_changed (etm, etsm);
+}
+
+static void
+model_rows_deleted (ETableModel *etm,
+                    gint row,
+                    gint count,
+                    ETableSelectionModel *etsm)
+{
+	model_changed (etm, etsm);
+}
+#endif
+
+inline static void
+add_model (ETableSelectionModel *etsm,
+           ETableModel *model)
+{
+	etsm->model = model;
+	if (model) {
+		g_object_ref (model);
+		etsm->model_pre_change_id = g_signal_connect (
+			model, "model_pre_change",
+			G_CALLBACK (model_pre_change), etsm);
+		etsm->model_changed_id = g_signal_connect (
+			model, "model_changed",
+			G_CALLBACK (model_changed), etsm);
+		etsm->model_row_changed_id = g_signal_connect (
+			model, "model_row_changed",
+			G_CALLBACK (model_row_changed), etsm);
+		etsm->model_cell_changed_id = g_signal_connect (
+			model, "model_cell_changed",
+			G_CALLBACK (model_cell_changed), etsm);
+		etsm->model_rows_inserted_id = g_signal_connect (
+			model, "model_rows_inserted",
+			G_CALLBACK (model_rows_inserted), etsm);
+		etsm->model_rows_deleted_id = g_signal_connect (
+			model, "model_rows_deleted",
+			G_CALLBACK (model_rows_deleted), etsm);
+	}
+	e_selection_model_array_confirm_row_count (E_SELECTION_MODEL_ARRAY (etsm));
+}
+
+inline static void
+drop_model (ETableSelectionModel *etsm)
+{
+	if (etsm->model) {
+		g_signal_handler_disconnect (
+			etsm->model,
+			etsm->model_pre_change_id);
+		g_signal_handler_disconnect (
+			etsm->model,
+			etsm->model_changed_id);
+		g_signal_handler_disconnect (
+			etsm->model,
+			etsm->model_row_changed_id);
+		g_signal_handler_disconnect (
+			etsm->model,
+			etsm->model_cell_changed_id);
+		g_signal_handler_disconnect (
+			etsm->model,
+			etsm->model_rows_inserted_id);
+		g_signal_handler_disconnect (
+			etsm->model,
+			etsm->model_rows_deleted_id);
+
+		g_object_unref (etsm->model);
+	}
+	etsm->model = NULL;
+}
+
+static void
+etsm_dispose (GObject *object)
+{
+	ETableSelectionModel *etsm;
+
+	etsm = E_TABLE_SELECTION_MODEL (object);
+
+	if (etsm->model_changed_idle_id)
+		g_source_remove (etsm->model_changed_idle_id);
+	etsm->model_changed_idle_id = 0;
+
+	drop_model (etsm);
+	free_hash (etsm);
+
+	/* Chain up to parent's dispose() method. */
+	G_OBJECT_CLASS (e_table_selection_model_parent_class)->dispose (object);
+}
+
+static void
+etsm_get_property (GObject *object,
+                   guint property_id,
+                   GValue *value,
+                   GParamSpec *pspec)
+{
+	ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (object);
+
+	switch (property_id) {
+	case PROP_MODEL:
+		g_value_set_object (value, etsm->model);
+		break;
+	case PROP_HEADER:
+		g_value_set_object (value, etsm->eth);
+		break;
+	}
+}
+
+static void
+etsm_set_property (GObject *object,
+                   guint property_id,
+                   const GValue *value,
+                   GParamSpec *pspec)
+{
+	ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (object);
+
+	switch (property_id) {
+	case PROP_MODEL:
+		drop_model (etsm);
+		add_model (etsm, g_value_get_object (value) ? E_TABLE_MODEL (g_value_get_object (value)) : NULL);
+		break;
+	case PROP_HEADER:
+		etsm->eth = E_TABLE_HEADER (g_value_get_object (value));
+		break;
+	}
+}
+
+static void
+e_table_selection_model_init (ETableSelectionModel *selection)
+{
+	selection->model = NULL;
+	selection->hash = NULL;
+	selection->cursor_id = NULL;
+
+	selection->model_changed_idle_id = 0;
+}
+
+static void
+e_table_selection_model_class_init (ETableSelectionModelClass *class)
+{
+	GObjectClass *object_class;
+	ESelectionModelArrayClass *esma_class;
+
+	object_class             = G_OBJECT_CLASS (class);
+	esma_class               = E_SELECTION_MODEL_ARRAY_CLASS (class);
+
+	object_class->dispose      = etsm_dispose;
+	object_class->get_property = etsm_get_property;
+	object_class->set_property = etsm_set_property;
+
+	esma_class->get_row_count = etsm_get_row_count;
+
+	g_object_class_install_property (
+		object_class,
+		PROP_MODEL,
+		g_param_spec_object (
+			"model",
+			"Model",
+			NULL,
+			E_TYPE_TABLE_MODEL,
+			G_PARAM_READWRITE));
+
+	g_object_class_install_property (
+		object_class,
+		PROP_HEADER,
+		g_param_spec_object (
+			"header",
+			"Header",
+			NULL,
+			E_TYPE_TABLE_HEADER,
+			G_PARAM_READWRITE));
+}
+
+/**
+ * e_table_selection_model_new
+ *
+ * This routine creates a new #ETableSelectionModel.
+ *
+ * Returns: The new #ETableSelectionModel.
+ */
+ETableSelectionModel *
+e_table_selection_model_new (void)
+{
+	return g_object_new (E_TYPE_TABLE_SELECTION_MODEL, NULL);
+}
+
+static gint
+etsm_get_row_count (ESelectionModelArray *esma)
+{
+	ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (esma);
+
+	if (etsm->model)
+		return e_table_model_row_count (etsm->model);
+	else
+		return 0;
+}