using Gee; using Gtk; using Pango; using Dino.Entities; namespace Dino.Ui.ConversationSummary { [GtkTemplate (ui = "/im/dino/Dino/conversation_summary/view.ui")] public class ConversationView : Box, Plugins.ConversationItemCollection { public Conversation? conversation { get; private set; } [GtkChild] private ScrolledWindow scrolled; [GtkChild] private Revealer notification_revealer; [GtkChild] private Box notifications; [GtkChild] private Box main; [GtkChild] private Stack stack; private StreamInteractor stream_interactor; private Gee.TreeSet meta_items = new TreeSet(sort_meta_items); private Gee.HashMap item_item_skeletons = new Gee.HashMap(); private Gee.HashMap widgets = new Gee.HashMap(); private Gee.List item_skeletons = new Gee.ArrayList(); private ContentProvider content_populator; private SubscriptionNotitication subscription_notification; private double? was_value; private double? was_upper; private double? was_page_size; private Mutex reloading_mutex = Mutex(); private bool animate = false; private bool firstLoad = true; public ConversationView(StreamInteractor stream_interactor) { this.stream_interactor = stream_interactor; scrolled.vadjustment.notify["upper"].connect_after(on_upper_notify); scrolled.vadjustment.notify["value"].connect(on_value_notify); content_populator = new ContentProvider(stream_interactor); subscription_notification = new SubscriptionNotitication(stream_interactor); insert_item.connect(on_insert_item); remove_item.connect(on_remove_item); Application app = GLib.Application.get_default() as Application; app.plugin_registry.register_conversation_addition_populator(new ChatStatePopulator(stream_interactor)); app.plugin_registry.register_conversation_addition_populator(new DateSeparatorPopulator(stream_interactor)); Timeout.add_seconds(60, () => { foreach (ConversationItemSkeleton item_skeleton in item_skeletons) { item_skeleton.update_time(); } return true; }); Util.force_base_background(this); } // Workaround GTK TextView issues: Delay first load of contents public void initialize_for_conversation(Conversation? conversation) { if (firstLoad) { int timeout = firstLoad ? 1000 : 0; Timeout.add(timeout, () => { initialize_for_conversation_(conversation); return false; }); firstLoad = false; } else { initialize_for_conversation_(conversation); } } private void initialize_for_conversation_(Conversation? conversation) { Dino.Application app = Dino.Application.get_default(); if (this.conversation != null) { foreach (Plugins.ConversationItemPopulator populator in app.plugin_registry.conversation_addition_populators) { populator.close(conversation); } } this.conversation = conversation; stack.set_visible_child_name("void"); clear(); was_upper = null; was_page_size = null; animate = false; Timeout.add(20, () => { animate = true; return false; }); foreach (Plugins.ConversationItemPopulator populator in app.plugin_registry.conversation_addition_populators) { populator.init(conversation, this, Plugins.WidgetType.GTK); } content_populator.init(this, conversation, Plugins.WidgetType.GTK); Gee.List items = content_populator.populate_latest(conversation, 40); foreach (ContentMetaItem item in items) { on_insert_item(item); } Idle.add(() => { on_value_notify(); return false; }); subscription_notification.init(conversation, this); stack.set_visible_child_name("main"); } public void on_insert_item(Plugins.MetaConversationItem item) { lock (meta_items) { if (!item.can_merge || !merge_back(item)) { insert_new(item); } } } private void on_remove_item(Plugins.MetaConversationItem item) { lock (meta_items) { ConversationItemSkeleton? skeleton = item_item_skeletons[item]; if (skeleton.items.size > 1) { skeleton.remove_meta_item(item); } else { widgets[item].destroy(); widgets.unset(item); skeleton.destroy(); item_skeletons.remove(skeleton); item_item_skeletons.unset(item); } meta_items.remove(item); } } public void add_notification(Widget widget) { notifications.add(widget); Timeout.add(20, () => { notification_revealer.transition_duration = 200; notification_revealer.reveal_child = true; return false; }); } public void remove_notification(Widget widget) { notification_revealer.reveal_child = false; widget.destroy(); } private bool merge_back(Plugins.MetaConversationItem item) { Plugins.MetaConversationItem? lower_item = meta_items.lower(item); if (lower_item != null) { ConversationItemSkeleton lower_skeleton = item_item_skeletons[lower_item]; Plugins.MetaConversationItem lower_start_item = lower_skeleton.items[0]; if (lower_start_item.can_merge && item.display_time.difference(lower_start_item.display_time) < TimeSpan.MINUTE && lower_start_item.jid.equals(item.jid) && lower_start_item.encryption == item.encryption && (item.mark == Message.Marked.WONTSEND) == (lower_start_item.mark == Message.Marked.WONTSEND)) { lower_skeleton.add_meta_item(item); force_alloc_width(lower_skeleton, main.get_allocated_width()); item_item_skeletons[item] = lower_skeleton; meta_items.add(item); return true; } } return false; } private void insert_new(Plugins.MetaConversationItem item) { Plugins.MetaConversationItem? lower_item = meta_items.lower(item); // Does another skeleton need to be split? if (lower_item != null) { ConversationItemSkeleton lower_skeleton = item_item_skeletons[lower_item]; if (lower_skeleton.items.size > 1) { Plugins.MetaConversationItem lower_end_item = lower_skeleton.items[lower_skeleton.items.size - 1]; if (item.sort_time.compare(lower_end_item.sort_time) < 0) { split_at_time(lower_skeleton, item.sort_time); } } } // Fill datastructure ConversationItemSkeleton item_skeleton = new ConversationItemSkeleton(stream_interactor, conversation, item) { visible=true }; item_item_skeletons[item] = item_skeleton; int index = lower_item != null ? item_skeletons.index_of(item_item_skeletons[lower_item]) + 1 : 0; item_skeletons.insert(index, item_skeleton); meta_items.add(item); // Insert widget Widget insert = item_skeleton; if (animate) { Revealer revealer = new Revealer() {transition_duration = 200, transition_type = RevealerTransitionType.SLIDE_UP, visible = true}; revealer.add(item_skeleton); insert = revealer; main.add(insert); revealer.reveal_child = true; } else { main.add(insert); } widgets[item] = insert; force_alloc_width(insert, main.get_allocated_width()); main.reorder_child(insert, index); // If an item from the past was added, add everything between that item and the (post-)first present item if (index == 0) { Dino.Application app = Dino.Application.get_default(); if (item_skeletons.size == 1) { foreach (Plugins.ConversationAdditionPopulator populator in app.plugin_registry.conversation_addition_populators) { populator.populate_timespan(conversation, item.sort_time, new DateTime.now_utc()); } } else { foreach (Plugins.ConversationAdditionPopulator populator in app.plugin_registry.conversation_addition_populators) { populator.populate_timespan(conversation, item.sort_time, meta_items.higher(item).sort_time); } } } } private void split_at_time(ConversationItemSkeleton split_skeleton, DateTime time) { bool already_divided = false; int i = 0; while(i < split_skeleton.items.size) { Plugins.MetaConversationItem meta_item = split_skeleton.items[i]; if (time.compare(meta_item.display_time) < 0) { remove_item(meta_item); if (!already_divided) { insert_new(meta_item); already_divided = true; } else { insert_item(meta_item); } } i++; } } private void on_upper_notify() { if (was_upper == null || scrolled.vadjustment.value > was_upper - was_page_size - 1 || scrolled.vadjustment.value > was_upper - was_page_size - 1) { // scrolled down or content smaller than page size scrolled.vadjustment.value = scrolled.vadjustment.upper - scrolled.vadjustment.page_size; // scroll down } else if (scrolled.vadjustment.value < scrolled.vadjustment.upper - scrolled.vadjustment.page_size - 1) { scrolled.vadjustment.value = scrolled.vadjustment.upper - was_upper + scrolled.vadjustment.value; // stay at same content } was_upper = scrolled.vadjustment.upper; was_page_size = scrolled.vadjustment.page_size; reloading_mutex.trylock(); reloading_mutex.unlock(); } private void on_value_notify() { if (scrolled.vadjustment.value < 200) { load_earlier_messages(); } } private void load_earlier_messages() { was_value = scrolled.vadjustment.value; if (!reloading_mutex.trylock()) return; if (meta_items.size > 0) { Gee.List items = content_populator.populate_before(conversation, meta_items.first(), 20); foreach (ContentMetaItem item in items) { on_insert_item(item); } } } private static int sort_meta_items(Plugins.MetaConversationItem a, Plugins.MetaConversationItem b) { int res = a.sort_time.compare(b.sort_time); if (res == 0) { if (a.seccondary_sort_indicator < b.seccondary_sort_indicator) res = -1; else if (a.seccondary_sort_indicator > b.seccondary_sort_indicator) res = 1; } return res; } // Workaround GTK TextView issues private void force_alloc_width(Widget widget, int width) { Allocation alloc = Allocation(); widget.get_preferred_width(out alloc.width, null); widget.get_preferred_height(out alloc.height, null); alloc.width = width; widget.size_allocate(alloc); } private void clear() { meta_items.clear(); item_skeletons.clear(); item_item_skeletons.clear(); widgets.clear(); main.@foreach((widget) => { widget.destroy(); }); notifications.@foreach((widget) => { widget.destroy(); }); notification_revealer.transition_duration = 0; notification_revealer.set_reveal_child(false); } } }