diff options
Diffstat (limited to 'main/src/ui/chat_input/occupants_tab_completer.vala')
| -rw-r--r-- | main/src/ui/chat_input/occupants_tab_completer.vala | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/main/src/ui/chat_input/occupants_tab_completer.vala b/main/src/ui/chat_input/occupants_tab_completer.vala new file mode 100644 index 00000000..93b0e7ff --- /dev/null +++ b/main/src/ui/chat_input/occupants_tab_completer.vala @@ -0,0 +1,116 @@ +using Gdk; +using Gee; +using Gtk; + +using Dino.Entities; + +namespace Dino.Ui.ChatInput { + +/** + * - With given prefix: Complete from occupant list (sorted lexicographically) + * - W/o prefix: Complete from received messages (most recent first) + * - At the start (with ",") and in the middle of a text + * - Backwards tabbing + */ +class OccupantsTabCompletor { + + private StreamInteractor stream_interactor; + private Conversation? conversation; + private TextView text_input; + + private Gee.List<string> completions = new ArrayList<string>(); + private bool active = false; + private int index = -1; + + public OccupantsTabCompletor(StreamInteractor stream_interactor, TextView text_input) { + this.stream_interactor = stream_interactor; + this.text_input = text_input; + + text_input.key_press_event.connect(on_text_input_key_press); + } + + public void initialize_for_conversation(Conversation conversation) { + this.conversation = conversation; + } + + public bool on_text_input_key_press(EventKey event) { + if (conversation.type_ == Conversation.Type.GROUPCHAT) { + if (event.keyval == Key.Tab || event.keyval == Key.ISO_Left_Tab) { + string text = text_input.buffer.text; + int start_index = int.max(text.last_index_of(" "), text.last_index_of("\n")) + 1; + string word = text.substring(start_index); + if (!active) { + if (word == "") { + completions = generate_completions_from_messages(); + } else { + completions = generate_completions_from_occupants(word); + } + if (completions.size > 0) { + active = true; + index = -1; + } + } + if (event.keyval != Key.ISO_Group_Shift && active) { + text_input.buffer.text = next_completion(event.keyval == Key.ISO_Left_Tab); + return true; + } + } else if (event.keyval != Key.Shift_L && active) { + active = false; + } + } + return false; + } + + private string next_completion(bool backwards) { + string text = text_input.buffer.text; + int start_index = int.max(text.last_index_of(" "), text.last_index_of("\n")) + 1; + string prev_completion = text.substring(start_index); + if (index > -1) { + start_index = int.max( + text.substring(0, text.length - 1).last_index_of(" "), + text.substring(0, text.length - 1).last_index_of("\n") + ) + 1; + prev_completion = text.substring(start_index); + } + if (backwards) { + index = int.max(index, 0) - 1; + if (index < 0) index = completions.size - 1; + } else { + index = (index + 1) % (completions.size); + } + if (start_index == 0) { + return completions[index] + ", "; + } else { + return text.substring(0, text.length - prev_completion.length) + completions[index] + " "; + } + } + + private Gee.List<string> generate_completions_from_messages() { + Gee.List<string> ret = new ArrayList<string>(); + Gee.List<Message>? messages = stream_interactor.get_module(MessageManager.IDENTITY).get_messages(conversation, 10); + if (messages != null) { + for (int i = messages.size - 1; i > 0; i--) { + string resourcepart = messages[i].from.resourcepart; + string own_nick = stream_interactor.get_module(MucManager.IDENTITY).get_nick(conversation.counterpart, conversation.account); + if (resourcepart != null && resourcepart != "" && resourcepart != own_nick && !ret.contains(resourcepart)) { + ret.add(resourcepart); + } + } + } + return ret; + } + + private Gee.List<string> generate_completions_from_occupants(string prefix) { + Gee.List<string> ret = new ArrayList<string>(); + Gee.List<Jid>? occupants = stream_interactor.get_module(MucManager.IDENTITY).get_other_occupants(conversation.counterpart, conversation.account); + if (occupants != null) { + foreach (Jid jid in occupants) { + if (jid.resourcepart.to_string().has_prefix(prefix)) ret.add(jid.resourcepart.to_string()); + } + } + ret.sort(); + return ret; + } +} + +}
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