/* * Copyright 2013 Canonical Ltd. * * 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, version 3 of the License. * * 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 . * * Authors: William Hua */ public class Indicator.Keyboard.Source : Object { private static Gnome.XkbInfo? xkb_info; private static IBus.Bus? ibus_bus; private static Fcitx.InputMethod? fcitx_proxy; private string? xkb; private string? ibus; private string? fcitx; private string? _name; private string? _short_name; private string? _layout; private string? _variant; private Icon? _icon; private uint _subscript; private bool _show_subscript; private bool _use_gtk; public string? name { get { if (_name == null) { _name = _get_name (); } return _name; } } public string? short_name { get { if (_short_name == null) { _short_name = _get_short_name (); } return _short_name; } } public string? layout { get { if (_layout == null) { _layout = _get_layout (); } return _layout; } } public string? variant { get { if (_variant == null) { _variant = _get_variant (); } return _variant; } } public Icon? icon { get { if (_icon == null) { _icon = _get_icon (); } return _icon; } set { _icon = value; } } public uint subscript { get { return _subscript; } set { _subscript = value; icon = null; } } public bool show_subscript { get { return _show_subscript; } set { _show_subscript = value; icon = null; } } public bool use_gtk { get { return _use_gtk; } construct set { _use_gtk = value; icon = null; } } public bool is_xkb { get { return xkb != null; } } public bool is_ibus { get { return ibus != null; } } public bool is_fcitx { get { return fcitx != null; } } public Source (Variant variant, bool use_gtk = false) { Object (use_gtk: use_gtk); if (variant.is_of_type (new VariantType ("(ss)"))) { unowned string type; unowned string name; variant.get ("(&s&s)", out type, out name); if (type == "xkb") { xkb = name; } else if (type == "ibus") { ibus = name; } else if (type == "fcitx") { fcitx = name; } } else if (variant.is_of_type (new VariantType ("a{ss}"))) { var iter = variant.iterator (); unowned string key; unowned string value; while (iter.next ("{&s&s}", out key, out value)) { if (key == "xkb") { xkb = value; } else if (key == "ibus") { ibus = value; } else if (key == "fcitx") { fcitx = value; } } } } private static Gnome.XkbInfo get_xkb_info () { if (xkb_info == null) { xkb_info = new Gnome.XkbInfo (); } return (!) xkb_info; } private static IBus.Bus get_ibus_bus () { if (ibus_bus == null) { IBus.init (); ibus_bus = new IBus.Bus (); } return (!) ibus_bus; } private static Fcitx.InputMethod get_fcitx_proxy () throws Error { if (fcitx_proxy == null) { fcitx_proxy = new Fcitx.InputMethod (BusType.SESSION, DBusProxyFlags.NONE, 0); } return (!) fcitx_proxy; } private IBus.EngineDesc? get_engine () { IBus.EngineDesc? engine = null; if (ibus != null) { var names = new string[2]; names[0] = (!) ibus; var engines = get_ibus_bus ().get_engines_by_names (names); if (engines.length > 0) { engine = engines[0]; } } return engine; } protected virtual string? _get_name () { string? name = null; if (xkb != null) { string? display_name = null; string? layout = null; get_xkb_info ().get_layout_info ((!) xkb, out display_name, null, out layout, null); var has_display_name = display_name != null && ((!) display_name).get_char () != '\0'; var has_layout = layout != null && ((!) layout).get_char () != '\0'; if (has_display_name) { name = display_name; } else if (has_layout) { string? language = Xkl.get_language_name ((!) layout); string? country = Xkl.get_country_name ((!) layout); var has_language = language != null && ((!) language).get_char () != '\0'; var has_country = country != null && ((!) country).get_char () != '\0'; if (has_language && has_country) { name = @"$((!) language) ($((!) country))"; } else if (has_language) { name = language; } else if (has_country) { name = country; } } if (name == null || ((!) name).get_char () == '\0') { name = xkb; } } else if (ibus != null) { var engine = get_engine (); if (engine != null) { string? language = ((!) engine).get_language (); string? display_name = ((!) engine).get_longname (); var has_language = language != null && ((!) language).get_char () != '\0'; var has_display_name = display_name != null && ((!) display_name).get_char () != '\0'; if (has_language) { language = Xkl.get_language_name ((!) language); has_language = language != null && ((!) language).get_char () != '\0'; } if (has_language && has_display_name) { name = @"$((!) language) ($((!) display_name))"; } else if (has_language) { name = language; } else if (has_display_name) { name = display_name; } } if (name == null || ((!) name).get_char () == '\0') { name = ibus; } } else if (fcitx != null) { try { var input_methods = get_fcitx_proxy ().get_imlist_nofree (); for (var i = 0; i < input_methods.length; i++) { if (input_methods.get (i).unique_name == (!) fcitx) { name = input_methods.get (i).name; break; } } } catch (Error error) { warning ("error: %s", error.message); } if (name == null || ((!) name).get_char () == '\0') { name = fcitx; } } return name; } protected virtual string? _get_short_name () { string? short_name = null; if (xkb != null) { get_xkb_info ().get_layout_info ((!) xkb, null, out short_name, null, null); if (short_name == null || ((!) short_name).get_char () == '\0') { short_name = xkb; } } else if (ibus != null) { var engine = get_engine (); if (engine != null) { short_name = ((!) engine).get_name (); } if (short_name == null || ((!) short_name).get_char () == '\0') { short_name = ibus; } } else if (fcitx != null) { try { var input_methods = get_fcitx_proxy ().get_imlist_nofree (); for (var i = 0; i < input_methods.length; i++) { if (input_methods.get (i).unique_name == (!) fcitx) { short_name = input_methods.get (i).langcode; break; } } } catch (Error error) { warning ("error: %s", error.message); } if (short_name == null || ((!) short_name).get_char () == '\0') { short_name = fcitx; } } return abbreviate (short_name); } protected virtual string? _get_layout () { string? layout = null; if (xkb != null) { get_xkb_info ().get_layout_info ((!) xkb, null, null, out layout, null); } var has_layout = layout != null && ((!) layout).get_char () != '\0'; if (!has_layout) { var engine = get_engine (); if (engine != null) { layout = ((!) engine).get_layout (); } } if (layout == null || ((!) layout).get_char () == '\0') { layout = xkb; } return layout; } protected virtual string? _get_variant () { string? variant = null; if (xkb != null) { get_xkb_info ().get_layout_info ((!) xkb, null, null, null, out variant); } var has_variant = variant != null && ((!) variant).get_char () != '\0'; if (!has_variant) { var engine = get_engine (); if (engine != null) { variant = ((!) engine).get_layout_variant (); } } if (variant == null || ((!) variant).get_char () == '\0') { variant = null; } return variant; } private Gtk.StyleContext? get_style_context () { Gtk.StyleContext? context = null; if (_use_gtk) { Gdk.Screen? screen = Gdk.Screen.get_default (); if (screen != null) { var style_context = new Gtk.StyleContext (); style_context.set_screen ((!) screen); var path = new Gtk.WidgetPath (); path.append_type (typeof (Gtk.MenuItem)); style_context.set_path (path); context = style_context; } } return context; } protected virtual Icon? create_icon () { Icon? icon = null; var style = get_style_context (); if (style != null) { const int W = 22; const int H = 22; const int w = 20; const int h = 20; const double R = 2.0; const double TEXT_SIZE = 12.0; const double SUBSCRIPT_SIZE = 8.0; Pango.FontDescription description; var colour = ((!) style).get_color (Gtk.StateFlags.NORMAL); colour = { 0.5, 0.5, 0.5, 1.0 }; ((!) style).get (Gtk.StateFlags.NORMAL, Gtk.STYLE_PROPERTY_FONT, out description); var surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, W, H); var context = new Cairo.Context (surface); context.translate (0.5 * (W - w), 0.5 * (H - h)); context.new_sub_path (); context.arc (R, R, R, Math.PI, -0.5 * Math.PI); context.arc (w - R, R, R, -0.5 * Math.PI, 0); context.arc (w - R, h - R, R, 0, 0.5 * Math.PI); context.arc (R, h - R, R, 0.5 * Math.PI, Math.PI); context.close_path (); context.set_source_rgba (colour.red, colour.green, colour.blue, colour.alpha); context.fill (); context.set_operator (Cairo.Operator.CLEAR); if (short_name != null) { var text_layout = Pango.cairo_create_layout (context); text_layout.set_alignment (Pango.Alignment.CENTER); description.set_absolute_size (Pango.units_from_double (TEXT_SIZE)); text_layout.set_font_description (description); text_layout.set_text ((!) short_name, -1); Pango.cairo_update_layout (context, text_layout); int text_width; int text_height; text_layout.get_pixel_size (out text_width, out text_height); if (_show_subscript) { var subscript_layout = Pango.cairo_create_layout (context); subscript_layout.set_alignment (Pango.Alignment.CENTER); description.set_absolute_size (Pango.units_from_double (SUBSCRIPT_SIZE)); subscript_layout.set_font_description (description); subscript_layout.set_text (@"$_subscript", -1); Pango.cairo_update_layout (context, subscript_layout); int subscript_width; int subscript_height; subscript_layout.get_pixel_size (out subscript_width, out subscript_height); context.save (); context.translate ((w - (text_width + subscript_width)) / 2, (h - text_height) / 2); Pango.cairo_layout_path (context, text_layout); context.fill (); context.restore (); context.save (); context.translate ((w + (text_width - subscript_width)) / 2, (h + text_height) / 2 - subscript_height); Pango.cairo_layout_path (context, subscript_layout); context.fill (); context.restore (); } else { context.save (); context.translate ((w - text_width) / 2, (h - text_height) / 2); Pango.cairo_layout_path (context, text_layout); context.fill (); context.restore (); } } var buffer = new ByteArray (); surface.write_to_png_stream ((data) => { buffer.append (data); return Cairo.Status.SUCCESS; }); icon = new BytesIcon (ByteArray.free_to_bytes ((owned) buffer)); } return icon; } private Icon? _get_icon () { Icon? icon = null; var engine = get_engine (); if (engine != null) { string? icon_name = ((!) engine).get_icon (); var has_icon_name = icon_name != null && ((!) icon_name).get_char () != '\0'; if (has_icon_name) { try { icon = Icon.new_for_string ((!) icon_name); } catch (Error error) { warning ("error: %s", error.message); } } } if (icon == null && short_name != null) { string icon_name; if (_show_subscript) { icon_name = @"indicator-keyboard-$((!) short_name)-$_subscript"; } else { icon_name = @"indicator-keyboard-$((!) short_name)"; } if (_use_gtk) { var icon_theme = Gtk.IconTheme.get_default (); Gtk.IconInfo? icon_info = icon_theme.lookup_icon (icon_name, 22, 0); if (icon_info != null) { icon = new ThemedIcon (icon_name); } } else { icon = new ThemedIcon (icon_name); } } if (icon == null) { icon = create_icon (); } return icon; } }