1/* 2 * Copyright (C) 2011 Michal Hruby <michal.mhr@gmail.com> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Authored by Michal Hruby <michal.mhr@gmail.com> 19 * 20 */ 21 22namespace Synapse 23{ 24 public class SelectionPlugin : Object, Activatable, ItemProvider 25 { 26 public bool enabled { get; set; default = true; } 27 28 private Gtk.Clipboard clipboard; 29 private SelectedTextItem item; 30 31 public void activate () 32 { 33 item = new SelectedTextItem (); 34 clipboard = Gtk.Clipboard.get (Gdk.SELECTION_PRIMARY); 35 clipboard.owner_change.connect (this.cb_owner_change); 36 } 37 38 public void deactivate () 39 { 40 clipboard.owner_change.disconnect (this.cb_owner_change); 41 } 42 43 bool cb_changed = true; 44 45 private void cb_owner_change () 46 { 47 cb_changed = true; 48 } 49 50 // register your plugin in the UI 51 static void register_plugin () 52 { 53 PluginRegistry.get_default ().register_plugin ( 54 typeof (SelectionPlugin), 55 _("Selection"), // plugin title 56 _("Provides actions for currently selected text."), // description 57 "edit-select-all", // icon name 58 register_plugin // reference to this function 59 ); 60 } 61 62 static construct 63 { 64 // register the plugin when the class is constructed 65 register_plugin (); 66 } 67 68 private class SelectedTextItem : TextMatch 69 { 70 public SelectedTextItem () 71 { 72 Object (title: _("Selected text"), 73 description : "", 74 icon_name: "edit-select-all", 75 has_thumbnail: false, 76 text_origin: TextOrigin.CLIPBOARD); 77 } 78 79 public override string get_text () 80 { 81 return content; 82 } 83 84 private string? content = null; 85 86 public void update_content (owned string content) 87 { 88 this.content = content; 89 string chugged = content.chug (); 90 string shortened; 91 if (chugged.char_count () > 100) 92 shortened = chugged.substring (0, chugged.index_of_nth_char (100)); 93 else 94 shortened = chugged; 95 description = shortened.replace ("\n", " "); 96 } 97 } 98 99 public bool handles_query (Query query) 100 { 101 // we will only search in the "Actions" category 102 return (QueryFlags.ACTIONS in query.query_type); 103 } 104 105 public async ResultSet? search (Query query) throws SearchError 106 { 107 var matchers = Query.get_matchers_for_query (query.query_string, 108 MatcherFlags.NO_FUZZY | MatcherFlags.NO_PARTIAL, 109 RegexCompileFlags.CASELESS); 110 int relevancy = 0; 111 foreach (var matcher in matchers) 112 { 113 if (matcher.key.match (item.title)) 114 { 115 relevancy = matcher.value; 116 break; 117 } 118 } 119 120 if (relevancy == 0) return null; 121 string? cb_text = null; 122 123 if (cb_changed) 124 { 125 clipboard.request_text ((cb, text) => { 126 cb_text = text; 127 search.callback (); 128 }); 129 } 130 else 131 { 132 cb_text = ""; 133 Idle.add (search.callback); 134 } 135 yield; 136 137 query.check_cancellable (); 138 139 if (cb_text != null) 140 { 141 if (cb_changed) 142 { 143 item.update_content ((owned) cb_text); 144 cb_changed = false; 145 } 146 var results = new ResultSet (); 147 results.add (item, relevancy); 148 149 query.check_cancellable (); 150 return results; 151 } 152 153 // make sure this method is called before returning any results 154 query.check_cancellable (); 155 return null; 156 } 157 } 158} 159