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//
// Copyright © 2011 Avi Romanoff, Allen Lowe, Maxwell Barvian
//
// 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 3 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Code from Granite https://launchpad.net/granite
//
using Gtk;
using Gdk;
namespace Lsc.Widgets {
public class HintedEntry : Gtk.Entry {
public string hint_string {
get {
return placeholder_text;
}
set {
placeholder_text = value;
}
}
public HintedEntry (string hint_string) {
this.hint_string = hint_string;
}
}
public class SearchBar : HintedEntry {
private bool is_searching = true;
private uint timeout_id = 0;
/**
* This value handles how much time (in ms) should pass
* after the user stops typing. By default it is set
* to 300 ms.
**/
public int pause_delay { get; set; default = 300; }
/**
* text_changed () signal is emitted after a short delay,
* which depends on pause_delay.
* If you need a synchronous signal without any delay,
* use changed () method.
**/
public signal void text_changed_pause (string text);
public SearchBar (string hint_string) {
base (hint_string);
primary_icon_name = "edit-find-symbolic";
// Signals and callbacks
changed.connect (manage_icon);
changed.connect_after (on_changed);
focus_in_event.connect (on_focus_in);
focus_out_event.connect (on_focus_out);
icon_press.connect (on_icon_press);
}
protected new void hint () {
is_searching = false;
set_icon_from_stock (Gtk.EntryIconPosition.SECONDARY, null);
}
private bool on_focus_in () {
if (!is_searching) {
is_searching = false;
}
return false;
}
private bool on_focus_out () {
if (get_text () == "") {
is_searching = false;
}
return false;
}
private void manage_icon () {
if (text != "")
set_icon_from_gicon (EntryIconPosition.SECONDARY, new ThemedIcon.with_default_fallbacks ("edit-clear-symbolic"));
else
set_icon_from_stock (EntryIconPosition.SECONDARY, null);
}
private void on_icon_press (EntryIconPosition position) {
if (position == EntryIconPosition.SECONDARY) {
is_searching = false;
text = "";
set_icon_from_stock (position, null);
is_searching = true;
} else {
if (!is_focus) {
is_searching = false;
}
}
}
private void on_changed () {
if (timeout_id > 0)
Source.remove (timeout_id);
timeout_id = Timeout.add (pause_delay, emit_text_changed);
}
private bool emit_text_changed () {
var terms = get_text ();
text_changed_pause (terms); // Emit signal
return Source.remove (timeout_id);
}
}
}
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