Initial revision

1 files changed, 286 insertions, 0 deletions

diff --git a/src/bookmarks/ephy-keywords-entry.c b/src/bookmarks/ephy-keywords-entry.c
new file mode 100644
index 000000000..94d6c93a9
--- /dev/null
+++ b/src/bookmarks/ephy-keywords-entry.c
@@ -0,0 +1,286 @@
+/*
+ *  Copyright (C) 2002  Marco Pesenti Gritti
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "ephy-keywords-entry.h"
+#include "ephy-marshal.h"
+#include "ephy-gobject-misc.h"
+
+#include <gdk/gdkkeysyms.h>
+
+//#define DEBUG_MSG(x) g_print x
+#define DEBUG_MSG(x)
+
+#define NOT_IMPLEMENTED g_warning ("not implemented: " G_STRLOC);
+
+/**
+ * Private data
+ */
+struct _EphyKeywordsEntryPrivate
+{
+	EphyBookmarks *bookmarks;
+};
+
+/**
+ * Private functions, only availble from this file
+ */
+static void		ephy_keywords_entry_class_init		(EphyKeywordsEntryClass *klass);
+static void		ephy_keywords_entry_init		(EphyKeywordsEntry *w);
+static void		ephy_keywords_entry_finalize_impl	(GObject *o);
+static gint		ephy_keywords_entry_key_press		(GtkWidget *widget,
+								 GdkEventKey *event);
+
+enum
+{
+	KEYWORDS_CHANGED,
+	LAST_SIGNAL
+};
+
+static GObjectClass *parent_class = NULL;
+
+static guint keywords_entry_signals[LAST_SIGNAL] = { 0 };
+
+MAKE_GET_TYPE (ephy_keywords_entry, "EphyKeywordsEntry", EphyKeywordsEntry,
+	       ephy_keywords_entry_class_init,
+	       ephy_keywords_entry_init, GTK_TYPE_ENTRY);
+
+static void
+ephy_keywords_entry_class_init (EphyKeywordsEntryClass *class)
+{
+	GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+	GtkWidgetClass *widget_class;
+
+	parent_class = g_type_class_peek_parent (class);
+	widget_class = (GtkWidgetClass*) class;
+
+	gobject_class->finalize = ephy_keywords_entry_finalize_impl;
+
+	widget_class->key_press_event = ephy_keywords_entry_key_press;
+
+	keywords_entry_signals[KEYWORDS_CHANGED] =
+                g_signal_new ("keywords_changed",
+                              G_OBJECT_CLASS_TYPE (gobject_class),
+                              G_SIGNAL_RUN_FIRST,
+                              G_STRUCT_OFFSET (EphyKeywordsEntryClass, keywords_changed),
+                              NULL, NULL,
+                              g_cclosure_marshal_VOID__VOID,
+                              G_TYPE_NONE,
+                              0);
+}
+
+static void
+try_to_expand_keyword (GtkEditable *editable)
+{
+	char *entry_text;
+	char *user_text;
+	const char *expand_text;
+	char *insert_text;
+	int user_text_length;
+	int expand_text_length;
+	int keyword_offset = 0;
+	int tmp;
+	EphyKeywordsEntry *entry = EPHY_KEYWORDS_ENTRY (editable);
+	EphyNode *node;
+
+	entry_text = gtk_editable_get_chars (editable, 0, -1);
+	g_return_if_fail (entry_text != NULL);
+
+	DEBUG_MSG (("Entry text \"%s\"\n", entry_text));
+
+	user_text = g_utf8_strrchr (entry_text, -1, ' ');
+
+	if (user_text)
+	{
+		user_text = g_utf8_find_next_char (user_text, NULL);
+		keyword_offset = g_utf8_pointer_to_offset
+			(entry_text, user_text);
+	}
+	else
+	{
+		user_text = entry_text;
+	}
+
+	DEBUG_MSG (("User text \"%s\"\n", user_text));
+
+	node = ephy_bookmarks_find_keyword (entry->priv->bookmarks,
+					    user_text, TRUE);
+	if (node)
+	{
+		expand_text = ephy_node_get_property_string
+			(node, EPHY_NODE_KEYWORD_PROP_NAME);
+
+		DEBUG_MSG (("Expand text %s\n", expand_text));
+
+		expand_text_length = g_utf8_strlen (expand_text, -1);
+		user_text_length = g_utf8_strlen (user_text, -1);
+
+		insert_text = g_utf8_offset_to_pointer (expand_text, user_text_length);
+		gtk_editable_insert_text (editable,
+					  insert_text,
+					  g_utf8_strlen (insert_text, -1),
+					  &tmp);
+		gtk_editable_select_region (editable, user_text_length + keyword_offset, -1);
+	}
+	else
+	{
+		DEBUG_MSG (("No expansion.\n"));
+	}
+
+	g_free (entry_text);
+}
+
+/* Until we have a more elegant solution, this is how we figure out if
+ * the GtkEntry inserted characters, assuming that the return value is
+ * TRUE indicating that the GtkEntry consumed the key event for some
+ * reason. This is a clone of code from GtkEntry.
+ */
+static gboolean
+entry_would_have_inserted_characters (const GdkEventKey *event)
+{
+	switch (event->keyval) {
+	case GDK_BackSpace:
+	case GDK_Clear:
+	case GDK_Insert:
+	case GDK_Delete:
+	case GDK_Home:
+	case GDK_End:
+	case GDK_Left:
+	case GDK_Right:
+	case GDK_Return:
+		return FALSE;
+	default:
+		if (event->keyval >= 0x20 && event->keyval <= 0xFF) {
+			if ((event->state & GDK_CONTROL_MASK) != 0) {
+				return FALSE;
+			}
+			if ((event->state & GDK_MOD1_MASK) != 0) {
+				return FALSE;
+			}
+		}
+		return event->length > 0;
+	}
+}
+
+static int
+get_editable_number_of_chars (GtkEditable *editable)
+{
+	char *text;
+	int length;
+
+	text = gtk_editable_get_chars (editable, 0, -1);
+	length = g_utf8_strlen (text, -1);
+	g_free (text);
+	return length;
+}
+
+static void
+set_position_and_selection_to_end (GtkEditable *editable)
+{
+	int end;
+
+	end = get_editable_number_of_chars (editable);
+	gtk_editable_select_region (editable, end, end);
+	gtk_editable_set_position (editable, end);
+}
+
+static gboolean
+position_and_selection_are_at_end (GtkEditable *editable)
+{
+	int end;
+	int start_sel, end_sel;
+
+	end = get_editable_number_of_chars (editable);
+	if (gtk_editable_get_selection_bounds (editable, &start_sel, &end_sel))
+	{
+		if (start_sel != end || end_sel != end)
+		{
+			return FALSE;
+		}
+	}
+	return gtk_editable_get_position (editable) == end;
+}
+
+static gint
+ephy_keywords_entry_key_press (GtkWidget *widget,
+			       GdkEventKey *event)
+{
+	GtkEditable *editable;
+	GdkEventKey *keyevent;
+	EphyKeywordsEntry *entry;
+	gboolean result;
+
+	entry = EPHY_KEYWORDS_ENTRY (widget);
+	editable = GTK_EDITABLE (entry);
+	keyevent = (GdkEventKey *)event;
+
+	/* After typing the right arrow key we move the selection to
+	 * the end, if we have a valid selection - since this is most
+	 * likely an auto-completion. We ignore shift / control since
+	 * they can validly be used to extend the selection.
+	 */
+	if ((keyevent->keyval == GDK_Right || keyevent->keyval == GDK_End) &&
+	    !(keyevent->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) &&
+	    gtk_editable_get_selection_bounds (editable, NULL, NULL))
+	{
+		set_position_and_selection_to_end (editable);
+	}
+
+	result = GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
+
+	/* Only do expanding when we are typing at the end of the
+	 * text.
+	 */
+	if (entry_would_have_inserted_characters (event)
+	    && position_and_selection_are_at_end (editable))
+	{
+		try_to_expand_keyword (editable);
+	}
+
+	g_signal_emit (G_OBJECT (entry), keywords_entry_signals[KEYWORDS_CHANGED], 0);
+
+	return result;
+}
+
+static void
+ephy_keywords_entry_init (EphyKeywordsEntry *w)
+{
+	w->priv = g_new0 (EphyKeywordsEntryPrivate, 1);
+	w->priv->bookmarks = NULL;
+}
+
+static void
+ephy_keywords_entry_finalize_impl (GObject *o)
+{
+	EphyKeywordsEntry *w = EPHY_KEYWORDS_ENTRY (o);
+	EphyKeywordsEntryPrivate *p = w->priv;
+
+	g_free (p);
+	G_OBJECT_CLASS (parent_class)->finalize (o);
+}
+
+GtkWidget *
+ephy_keywords_entry_new (void)
+{
+	return GTK_WIDGET (g_object_new (EPHY_TYPE_LOCATION_ENTRY, NULL));
+}
+
+void
+ephy_keywords_entry_set_bookmarks (EphyKeywordsEntry *w,
+				   EphyBookmarks *bookmarks)
+{
+	w->priv->bookmarks = bookmarks;
+}