aboutsummaryrefslogtreecommitdiff
path: root/main/src/ui/conversation_content_view/conversation_view.vala
blob: 4babbdb4baa327feefc0de563d5b837204fdf448 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
using Gee;
using Gtk;
using Gdk;
using Pango;

using Dino.Entities;

namespace Dino.Ui.ConversationSummary {

[GtkTemplate (ui = "/im/dino/Dino/conversation_content_view/view.ui")]
public class ConversationView : Widget, Plugins.ConversationItemCollection, Plugins.NotificationCollection {

    public Conversation? conversation { get; private set; }

    [GtkChild] public unowned ScrolledWindow scrolled;
    [GtkChild] private unowned Revealer notification_revealer;
    [GtkChild] private unowned Box message_menu_box;
    [GtkChild] private unowned Button button1;
    [GtkChild] private unowned Image button1_icon;
    [GtkChild] private unowned Box notifications;
    [GtkChild] private unowned Box main;
    [GtkChild] private unowned Box main_wrap_box;
    [GtkChild] private unowned Stack stack;

    private StreamInteractor stream_interactor;
    private Gee.TreeSet<Plugins.MetaConversationItem> content_items = new Gee.TreeSet<Plugins.MetaConversationItem>(compare_meta_items);
    private Gee.TreeSet<Plugins.MetaConversationItem> meta_items = new TreeSet<Plugins.MetaConversationItem>(compare_meta_items);
    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 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;
    private bool at_current_content = true;
    private bool reload_messages = true;
    Widget currently_highlighted = null;
    ContentMetaItem? current_meta_item = null;
    double last_y = -1;

    construct {
        this.layout_manager = new BinLayout();
    }

    public ConversationView init(StreamInteractor stream_interactor) {
        this.stream_interactor = stream_interactor;
        scrolled.vadjustment.notify["upper"].connect_after(on_upper_notify);
        scrolled.vadjustment.notify["page-size"].connect(on_upper_notify);
        scrolled.vadjustment.notify["value"].connect(on_value_notify);

        content_populator = new ContentProvider(stream_interactor);
        subscription_notification = new SubscriptionNotitication(stream_interactor);

        add_meta_notification.connect(on_add_meta_notification);
        remove_meta_notification.connect(on_remove_meta_notification);

        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));

        // Rather than connecting to the leave event of the main_event_box directly,
        // we connect to the parent event box that also wraps the overlaying message_menu_box.
        // This eliminates the unwanted leave events emitted on the main_event_box when hovering
        // the overlaying menu buttons.
        EventControllerMotion main_wrap_motion_events = new EventControllerMotion();
        main_wrap_box.add_controller(main_wrap_motion_events);
        main_wrap_motion_events.leave.connect(on_leave_notify_event);
        main_wrap_motion_events.enter.connect(update_highlight);
        // The buttons of the overlaying message_menu_box may partially overlap the adjacent
        // conversation items. We connect to the main_event_box directly to avoid emitting
        // the pointer motion events as long as the pointer is above the message menu.
        // This ensures that the currently highlighted item remains unchanged when the pointer
        // reaches the overlapping part of a button.
        EventControllerMotion main_motion_events = new EventControllerMotion();
        main.add_controller(main_motion_events);
        main_motion_events.motion.connect(update_highlight);

        button1.clicked.connect(() => {
            current_meta_item.get_item_actions(Plugins.WidgetType.GTK4)[0].callback(button1, current_meta_item, currently_highlighted);
            update_message_menu();
        });

        return this;
    }

    public void activate_last_message_correction() {
        Gee.BidirIterator<Plugins.MetaConversationItem> iter = content_items.bidir_iterator();
        iter.last();
        for (int i = 0; i < 10 && content_items.size > i; i++) {
            Plugins.MetaConversationItem item = iter.get();
            MessageMetaItem message_item = item as MessageMetaItem;
            if (message_item != null) {
                if ((conversation.type_ == Conversation.Type.CHAT && message_item.jid.equals_bare(conversation.account.bare_jid)) ||
                        (conversation.type_ == Conversation.Type.GROUPCHAT &&
                        message_item.jid.equals(stream_interactor.get_module(MucManager.IDENTITY).get_own_jid(conversation.counterpart, conversation.account)))) {
                    message_item.in_edit_mode = true;
                    break;
                }
            }
            iter.previous();
        }
    }

    private void on_leave_notify_event() {
        if (currently_highlighted != null) {
            currently_highlighted.remove_css_class("highlight");
            currently_highlighted = null;
        }
        message_menu_box.visible = false;
    }

    private void update_highlight(double x, double y) {
        if (currently_highlighted != null && (last_y - y).abs() <= 2) {
            return;
        }

        last_y = y;

        // Get widget under pointer
        int h = 0;
        Widget? w = null;
        Plugins.MetaConversationItem? meta_item = null;
        foreach (Plugins.MetaConversationItem item in meta_items) {
            Widget widget = widgets[item];
            h += widget.get_allocated_height() + widget.margin_top + widget.margin_bottom;
            if (h >= y) {
                w = widget;
                break;
            }
        };

        if (currently_highlighted != null) currently_highlighted.remove_css_class("highlight");

        currently_highlighted = null;
        current_meta_item = null;

        if (w == null) {
            update_message_menu();
            return;
        }

        // Get widget coordinates in main
        double widget_x, widget_y;
        w.translate_coordinates(main, 0, 0, out widget_x, out widget_y);

        // Get MessageItem
        foreach (Plugins.MetaConversationItem item in item_item_skeletons.keys) {
            if (item_item_skeletons[item].get_widget() == w) {
                current_meta_item = item as ContentMetaItem;
            }
        }

        update_message_menu();

        if (current_meta_item != null) {
            // Highlight widget
            currently_highlighted = w;
            currently_highlighted.add_css_class("highlight");

            // Move message menu
            message_menu_box.margin_top = (int)(widget_y - 10);
        }
    }

    private void update_message_menu() {
        if (current_meta_item == null) {
            message_menu_box.visible = false;
            return;
        }

        var actions = current_meta_item.get_item_actions(Plugins.WidgetType.GTK4);
        message_menu_box.visible = actions != null && actions.size > 0;
        if (actions != null && actions.size == 1) {
            button1.visible = true;
            button1_icon.set_from_icon_name(actions[0].icon_name);
        }
    }

    public void initialize_for_conversation(Conversation? conversation) {
        // Workaround for rendering issues
        if (firstLoad) {
            main.visible = false;
            Idle.add(() => {
                main.visible=true;
                return false;
            });
            firstLoad = false;
        }
        stack.set_visible_child_name("void");
        clear();
        initialize_for_conversation_(conversation);
        display_latest();
        stack.set_visible_child_name("main");
    }

    public void initialize_around_message(Conversation conversation, ContentItem content_item) {
        stack.set_visible_child_name("void");
        clear();
        initialize_for_conversation_(conversation);
        Gee.List<ContentMetaItem> before_items = content_populator.populate_before(conversation, content_item, 40);
        foreach (ContentMetaItem item in before_items) {
            do_insert_item(item);
        }
        ContentMetaItem meta_item = content_populator.get_content_meta_item(content_item);
        meta_item.can_merge = false;
        Widget w = insert_new(meta_item);
        content_items.add(meta_item);
        meta_items.add(meta_item);

        Gee.List<ContentMetaItem> after_items = content_populator.populate_after(conversation, content_item, 40);
        foreach (ContentMetaItem item in after_items) {
            do_insert_item(item);
        }
        if (after_items.size == 40) {
            at_current_content = false;
        }

        // Compute where to jump to for centered message, jump, highlight.
        reload_messages = false;
        Timeout.add(700, () => {
            int h = 0, i = 0;
            foreach (Plugins.MetaConversationItem item in meta_items) {
                Widget widget = widgets[item];
                if (widget == w) {
                    break;
                }
                h += widget.get_allocated_height();
                i++;
            }
            scrolled.vadjustment.value = h - scrolled.vadjustment.page_size * 1/3;
            w.add_css_class("highlight-once");
            reload_messages = true;
            stack.set_visible_child_name("main");
            return false;
        });
    }

    private void initialize_for_conversation_(Conversation? conversation) {
        // Deinitialize old 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);
            }
            foreach (Plugins.NotificationPopulator populator in app.plugin_registry.notification_populators) {
                populator.close(conversation);
            }
        }

        // Clear data structures
        clear_notifications();
        this.conversation = conversation;

        // Init for new conversation
        foreach (Plugins.ConversationItemPopulator populator in app.plugin_registry.conversation_addition_populators) {
            populator.init(conversation, this, Plugins.WidgetType.GTK4);
        }
        content_populator.init(this, conversation, Plugins.WidgetType.GTK4);
        subscription_notification.init(conversation, this);

        animate = false;
        Timeout.add(20, () => { animate = true; return false; });
    }

    private void display_latest() {
        Gee.List<ContentMetaItem> items = content_populator.populate_latest(conversation, 40);
        foreach (ContentMetaItem item in items) {
            do_insert_item(item);
        }
        Application app = GLib.Application.get_default() as Application;
        foreach (Plugins.NotificationPopulator populator in app.plugin_registry.notification_populators) {
            populator.init(conversation, this, Plugins.WidgetType.GTK4);
        }
        Idle.add(() => { on_value_notify(); return false; });
    }

    public void insert_item(Plugins.MetaConversationItem item) {
        if (meta_items.size > 0) {
            bool after_last = meta_items.last().time.compare(item.time) <= 0;
            bool within_range = meta_items.last().time.compare(item.time) > 0 && meta_items.first().time.compare(item.time) < 0;
            bool accept = within_range || (at_current_content && after_last);
            if (!accept) {
                return;
            }
        }
        do_insert_item(item);
    }

    public void do_insert_item(Plugins.MetaConversationItem item) {
        lock (meta_items) {
            insert_new(item);
            if (item as ContentMetaItem != null) {
                content_items.add(item);
            }
            meta_items.add(item);
        }

        inserted_item(item);
    }

    private void remove_item(Plugins.MetaConversationItem item) {
        ConversationItemSkeleton? skeleton = item_item_skeletons[item];
        if (skeleton != null) {
            main.remove(skeleton.get_widget());
            widgets.unset(item);
            item_skeletons.remove(skeleton);
            item_item_skeletons.unset(item);

            content_items.remove(item);
            meta_items.remove(item);
        }

        removed_item(item);
    }

    public void on_add_meta_notification(Plugins.MetaConversationNotification notification) {
        Widget? widget = (Widget) notification.get_widget(Plugins.WidgetType.GTK4);
        if (widget != null) {
            add_notification(widget);
        }
    }

    public void on_remove_meta_notification(Plugins.MetaConversationNotification notification){
        Widget? widget = (Widget) notification.get_widget(Plugins.WidgetType.GTK4);
        if (widget != null) {
            remove_notification(widget);
        }
    }

    public void add_notification(Widget widget) {
        notifications.append(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;
        notifications.remove(widget);
    }

    private Widget insert_new(Plugins.MetaConversationItem item) {
        Plugins.MetaConversationItem? lower_item = meta_items.lower(item);

        // Fill datastructure
        ConversationItemSkeleton item_skeleton = new ConversationItemSkeleton(stream_interactor, conversation, item, !animate);
        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);

        // Insert widget
        widgets[item] = item_skeleton.get_widget();
        widgets[item].insert_after(main, item_item_skeletons.has_key(lower_item) ? item_item_skeletons[lower_item].get_widget() : null);

        if (lower_item != null) {
            if (can_merge(item, lower_item)) {
                ConversationItemSkeleton lower_skeleton = item_item_skeletons[lower_item];
                item_skeleton.show_skeleton = false;
            } else {
                item_skeleton.show_skeleton = true;
            }
        } else {
            item_skeleton.show_skeleton = true;
        }

        Plugins.MetaConversationItem? upper_item = meta_items.higher(item);
        if (upper_item != null) {
            if (!can_merge(upper_item, item)) {
                ConversationItemSkeleton upper_skeleton = item_item_skeletons[upper_item];
                upper_skeleton.show_skeleton = true;
            }
        }

        // 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.time, new DateTime.now_utc());
                }
            } else {
                foreach (Plugins.ConversationAdditionPopulator populator in app.plugin_registry.conversation_addition_populators) {
                    populator.populate_timespan(conversation, item.time, meta_items.higher(item).time);
                }
            }
        }
        return item_skeleton.get_widget();
    }

    private bool can_merge(Plugins.MetaConversationItem upper_item /*more recent, displayed below*/, Plugins.MetaConversationItem lower_item /*less recent, displayed above*/) {
        return upper_item.time != null && lower_item.time != null &&
            upper_item.time.difference(lower_item.time) < TimeSpan.MINUTE &&
            upper_item.jid != null && lower_item.jid != null &&
            upper_item.jid.equals(lower_item.jid) &&
            upper_item.encryption == lower_item.encryption &&
            (upper_item.mark == Message.Marked.WONTSEND) == (lower_item.mark == Message.Marked.WONTSEND);
    }

    private void on_upper_notify() {
        if (was_upper == null || scrolled.vadjustment.value >  was_upper - was_page_size - 1) { // scrolled down or content smaller than page size
            if (at_current_content) {
                Idle.add(() => {
                    // If we do this directly without Idle.add, scrolling down doesn't work properly
                    scrolled.vadjustment.value = scrolled.vadjustment.upper - scrolled.vadjustment.page_size; // scroll down
                    return false;
                });
            }
        } 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 < 400) {
            load_earlier_messages();
        } else if (scrolled.vadjustment.upper - (scrolled.vadjustment.value + scrolled.vadjustment.page_size) < 400) {
            load_later_messages();
        }
    }

    private void load_earlier_messages() {
        was_value = scrolled.vadjustment.value;
        if (!reloading_mutex.trylock()) return;
        if (content_items.size > 0) {
            Gee.List<ContentMetaItem> items = content_populator.populate_before(conversation, ((ContentMetaItem) content_items.first()).content_item, 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 (content_items.size > 0 && !at_current_content) {
            Gee.List<ContentMetaItem> items = content_populator.populate_after(conversation, ((ContentMetaItem) content_items.last()).content_item, 20);
            if (items.size == 0) {
                at_current_content = true;
            }
            foreach (ContentMetaItem item in items) {
                do_insert_item(item);
            }
        } else {
            reloading_mutex.unlock();
        }
    }

    private static int compare_meta_items(Plugins.MetaConversationItem a, Plugins.MetaConversationItem b) {
        int cmp1 = a.time.compare(b.time);
        if (cmp1 != 0) return cmp1;

        return a.secondary_sort_indicator - b.secondary_sort_indicator;
    }

    private void clear() {
        was_upper = null;
        was_page_size = null;
        content_items.clear();
        meta_items.clear();
        item_skeletons.clear();
        item_item_skeletons.clear();
        foreach (Widget widget in widgets.values) {
            main.remove(widget);
        }
        widgets.clear();
    }

    private void clear_notifications() {
//        notifications.@foreach((widget) => { notifications.remove(widget); });
        notification_revealer.transition_duration = 0;
        notification_revealer.set_reveal_child(false);
    }
}

}