From 760fd4cb26340165fb85c2e3aee8390e46dc8b63 Mon Sep 17 00:00:00 2001 From: bobufa Date: Sat, 23 Jun 2018 11:59:21 +0200 Subject: load+display later messages when scrolling down --- .../ui/conversation_summary/content_populator.vala | 12 +++ .../ui/conversation_summary/conversation_view.vala | 110 ++++++++++++++------- 2 files changed, 87 insertions(+), 35 deletions(-) (limited to 'main/src') diff --git a/main/src/ui/conversation_summary/content_populator.vala b/main/src/ui/conversation_summary/content_populator.vala index 9fb83419..cec54c7b 100644 --- a/main/src/ui/conversation_summary/content_populator.vala +++ b/main/src/ui/conversation_summary/content_populator.vala @@ -53,6 +53,18 @@ public class ContentProvider : ContentItemCollection, Object { } return ret; } + + public Gee.List populate_after(Conversation conversation, Plugins.MetaConversationItem before_item, int n) { + Gee.List ret = new ArrayList(); + ContentMetaItem? content_meta_item = before_item as ContentMetaItem; + if (content_meta_item != null) { + Gee.List items = stream_interactor.get_module(ContentItemAccumulator.IDENTITY).populate_after(this, conversation, content_meta_item.content_item, n); + foreach (ContentItem item in items) { + ret.add(new ContentMetaItem(item, widget_factory)); + } + } + return ret; + } } public class ContentMetaItem : Plugins.MetaConversationItem { diff --git a/main/src/ui/conversation_summary/conversation_view.vala b/main/src/ui/conversation_summary/conversation_view.vala index bb696572..008909e4 100644 --- a/main/src/ui/conversation_summary/conversation_view.vala +++ b/main/src/ui/conversation_summary/conversation_view.vala @@ -18,7 +18,8 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { [GtkChild] private Stack stack; private StreamInteractor stream_interactor; - private Gee.TreeSet meta_items = new TreeSet(sort_meta_items); + private Gee.TreeSet content_items = new Gee.TreeSet(compare_meta_items); + private Gee.TreeSet meta_items = new TreeSet(compare_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(); @@ -32,6 +33,7 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { private Mutex reloading_mutex = Mutex(); private bool animate = false; private bool firstLoad = true; + private bool at_current_content = true; public ConversationView(StreamInteractor stream_interactor) { this.stream_interactor = stream_interactor; @@ -41,8 +43,8 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { content_populator = new ContentProvider(stream_interactor); subscription_notification = new SubscriptionNotitication(stream_interactor); - insert_item.connect(on_insert_item); - remove_item.connect(on_remove_item); + insert_item.connect(do_insert_item); + remove_item.connect(do_remove_item); Application app = GLib.Application.get_default() as Application; app.plugin_registry.register_conversation_addition_populator(new ChatStatePopulator(stream_interactor)); @@ -82,49 +84,57 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { } this.conversation = conversation; stack.set_visible_child_name("void"); + + 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); + subscription_notification.init(conversation, this); + + display_latest(); + + stack.set_visible_child_name("main"); + } + + private void display_latest() { 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); + do_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) { + public void do_insert_item(Plugins.MetaConversationItem item) { lock (meta_items) { if (!item.can_merge || !merge_back(item)) { insert_new(item); } } + if (item as ContentMetaItem != null) { + content_items.add(item); + } + meta_items.add(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); + private void do_remove_item(Plugins.MetaConversationItem item) { + 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); } + content_items.remove(item); + meta_items.remove(item); } public void add_notification(Widget widget) { @@ -154,8 +164,8 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { lower_skeleton.add_meta_item(item); force_alloc_width(lower_skeleton, main.get_allocated_width()); + widgets[item] = widgets[lower_start_item]; item_item_skeletons[item] = lower_skeleton; - meta_items.add(item); return true; } @@ -182,7 +192,6 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { 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; @@ -220,12 +229,12 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { 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); + do_remove_item(meta_item); if (!already_divided) { insert_new(meta_item); already_divided = true; } else { - insert_item(meta_item); + do_insert_item(meta_item); } } i++; @@ -235,19 +244,24 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { 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 + if (at_current_content) { + 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; + was_value = scrolled.vadjustment.value; reloading_mutex.trylock(); reloading_mutex.unlock(); } private void on_value_notify() { - if (scrolled.vadjustment.value < 200) { + if (scrolled.vadjustment.value < 400) { load_earlier_messages(); + } else if (scrolled.vadjustment.upper - (scrolled.vadjustment.value + scrolled.vadjustment.page_size) < 400) { + load_later_messages(); } } @@ -255,14 +269,39 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { 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); + Gee.List items = content_populator.populate_before(conversation, content_items.first(), 20); + foreach (ContentMetaItem item in items) { + do_insert_item(item); + } + } else { + reloading_mutex.unlock(); + } + } + + private void load_later_messages() { + if (!reloading_mutex.trylock()) return; + if (meta_items.size > 0 && !at_current_content) { + foreach (Plugins.MetaConversationItem a in content_items) { + ContentMetaItem b = a as ContentMetaItem; + MessageItem c = b.content_item as MessageItem; + } + Gee.List items = content_populator.populate_after(conversation, content_items.last(), 20); + + ContentMetaItem b = content_items.last() as ContentMetaItem; + MessageItem c = b.content_item as MessageItem; + + if (items.size == 0) { + at_current_content = true; + } foreach (ContentMetaItem item in items) { - on_insert_item(item); + do_insert_item(item); } + } else { + reloading_mutex.unlock(); } } - private static int sort_meta_items(Plugins.MetaConversationItem a, Plugins.MetaConversationItem b) { + private static int compare_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; @@ -281,6 +320,7 @@ public class ConversationView : Box, Plugins.ConversationItemCollection { } private void clear() { + content_items.clear(); meta_items.clear(); item_skeletons.clear(); item_item_skeletons.clear(); -- cgit v1.2.3-70-g09d2