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using Gee;
using Gtk;
using Pango;
using Dino.Entities;
namespace Dino.Ui.ConversationSummary {
[GtkTemplate (ui = "/im/dino/conversation_summary/view.ui")]
public class ConversationView : Box, Plugins.ConversationItemCollection {
public Conversation? conversation { get; private set; }
[GtkChild] private ScrolledWindow scrolled;
[GtkChild] private Box main;
[GtkChild] private Stack stack;
private StreamInteractor stream_interactor;
private Gee.TreeSet<Plugins.MetaConversationItem> meta_items = new TreeSet<Plugins.MetaConversationItem>((a, b) => { return a.sort_time.compare(b.sort_time); });
private Gee.Map<Plugins.MetaConversationItem, Gee.List<Plugins.MetaConversationItem>> meta_after_items = new Gee.HashMap<Plugins.MetaConversationItem, Gee.List<Plugins.MetaConversationItem>>();
private Gee.HashMap<Plugins.MetaConversationItem, ConversationItemSkeleton> item_item_skeletons = new Gee.HashMap<Plugins.MetaConversationItem, ConversationItemSkeleton>();
private Gee.HashMap<Plugins.MetaConversationItem, Widget> widgets = new Gee.HashMap<Plugins.MetaConversationItem, Widget>();
private Gee.List<ConversationItemSkeleton> item_skeletons = new Gee.ArrayList<ConversationItemSkeleton>();
private MessagePopulator message_item_populator;
private double? was_value;
private double? was_upper;
private double? was_page_size;
private Mutex reloading_mutex = new Mutex();
private bool animate = false;
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);
message_item_populator = new MessagePopulator(stream_interactor);
Application app = GLib.Application.get_default() as Application;
app.plugin_registry.register_conversation_item_populator(new ChatStatePopulator(stream_interactor));
app.plugin_registry.register_conversation_item_populator(new FilePopulator(stream_interactor));
Timeout.add_seconds(60, () => {
foreach (ConversationItemSkeleton item_skeleton in item_skeletons) {
item_skeleton.update_time();
}
return true;
});
Util.force_base_background(this);
}
public void initialize_for_conversation(Conversation? 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; });
Dino.Application app = Dino.Application.get_default();
foreach (Plugins.ConversationItemPopulator populator in app.plugin_registry.conversation_item_populators) {
populator.init(conversation, this, Plugins.WidgetType.GTK);
}
message_item_populator.init(conversation, this);
message_item_populator.populate_number(conversation, new DateTime.now_utc(), 50);
stack.set_visible_child_name("main");
}
public void insert_item(Plugins.MetaConversationItem item) {
lock (meta_items) {
meta_items.add(item);
if (!item.can_merge || !merge_back(item)) {
insert_new(item);
}
}
}
public void remove_item(Plugins.MetaConversationItem item) {
lock (meta_items) {
main.remove(widgets[item]);
widgets.unset(item);
meta_items.remove(item);
item_skeletons.remove(item_item_skeletons[item]);
item_item_skeletons.unset(item);
}
}
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_skeleton.add_meta_item(item);
force_alloc_width(lower_skeleton, main.get_allocated_width());
item_item_skeletons[item] = lower_skeleton;
return true;
}
}
return false;
}
private void insert_new(Plugins.MetaConversationItem item) {
ConversationItemSkeleton item_skeleton = new ConversationItemSkeleton(stream_interactor, conversation);
item_skeleton.add_meta_item(item);
item_item_skeletons[item] = item_skeleton;
Plugins.MetaConversationItem? lower_item = meta_items.lower(item);
int index = lower_item != null ? item_skeletons.index_of(item_item_skeletons[lower_item]) + 1 : 0;
item_skeletons.insert(index, item_skeleton);
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 (index == 0) {
Dino.Application app = Dino.Application.get_default();
if (item_skeletons.size == 1) {
foreach (Plugins.ConversationItemPopulator populator in app.plugin_registry.conversation_item_populators) {
populator.populate_between_widgets(conversation, item.sort_time, new DateTime.now_utc());
}
} else {
foreach (Plugins.ConversationItemPopulator populator in app.plugin_registry.conversation_item_populators) {
populator.populate_between_widgets(conversation, item.sort_time, meta_items.higher(item).sort_time);
}
}
}
}
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) message_item_populator.populate_number(conversation, meta_items.first().sort_time, 20);
}
// 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();
meta_after_items.clear();
item_skeletons.clear();
item_item_skeletons.clear();
main.@foreach((widget) => { main.remove(widget); });
}
}
}
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