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
|
using Gdk;
using Gee;
using Gtk;
using Dino.Entities;
using Xmpp;
namespace Dino.Ui {
public class ChatTextViewController : Object {
public signal void send_text();
public OccupantsTabCompletor occupants_tab_completor;
private ChatTextView widget;
public ChatTextViewController(ChatTextView widget, StreamInteractor stream_interactor) {
this.widget = widget;
occupants_tab_completor = new OccupantsTabCompletor(stream_interactor, widget.text_view);
widget.send_text.connect(() => {
send_text();
});
}
public void initialize_for_conversation(Conversation conversation) {
occupants_tab_completor.initialize_for_conversation(conversation);
}
}
public class ChatTextView : Box {
public signal void send_text();
public signal void cancel_input();
public ScrolledWindow scrolled_window = new ScrolledWindow() { propagate_natural_height=true, max_content_height=300, hexpand=true };
public TextView text_view = new TextView() { hexpand=true, wrap_mode=Gtk.WrapMode.WORD_CHAR, valign=Align.CENTER, margin_top=7, margin_bottom=7 };
private int vscrollbar_min_height;
private uint wait_queue_resize;
private SmileyConverter smiley_converter;
private TextTag italic_tag;
private TextTag bold_tag;
private TextTag strikethrough_tag;
construct {
valign = Align.CENTER;
scrolled_window.set_child(text_view);
this.append(scrolled_window);
var text_input_key_events = new EventControllerKey() { name = "dino-text-input-view-key-events" };
text_input_key_events.key_pressed.connect(on_text_input_key_press);
text_view.add_controller(text_input_key_events);
italic_tag = text_view.buffer.create_tag("italic");
italic_tag.style = Pango.Style.ITALIC;
bold_tag = text_view.buffer.create_tag("bold");
bold_tag.weight = Pango.Weight.BOLD;
strikethrough_tag = text_view.buffer.create_tag("strikethrough");
strikethrough_tag.strikethrough = true;
smiley_converter = new SmileyConverter(text_view);
scrolled_window.vadjustment.changed.connect(on_upper_notify);
text_view.realize.connect(() => {
var minimum_size = Requisition();
scrolled_window.get_preferred_size(out minimum_size, null);
vscrollbar_min_height = minimum_size.height;
});
}
public void set_text(Message message) {
// Get a copy of the markup spans, such that we can modify them
var markups = new ArrayList<Xep.MessageMarkup.Span>();
foreach (var markup in message.get_markups()) {
markups.add(new Xep.MessageMarkup.Span() { types=markup.types, start_char=markup.start_char, end_char=markup.end_char });
}
text_view.buffer.text = Util.remove_fallbacks_adjust_markups(message.body, message.quoted_item_id > 0, message.get_fallbacks(), markups);
foreach (var markup in markups) {
foreach (var ty in markup.types) {
TextTag tag = null;
switch (ty) {
case Xep.MessageMarkup.SpanType.EMPHASIS:
tag = italic_tag;
break;
case Xep.MessageMarkup.SpanType.STRONG_EMPHASIS:
tag = bold_tag;
break;
case Xep.MessageMarkup.SpanType.DELETED:
tag = strikethrough_tag;
break;
}
TextIter start_selection, end_selection;
text_view.buffer.get_iter_at_offset(out start_selection, markup.start_char);
text_view.buffer.get_iter_at_offset(out end_selection, markup.end_char);
text_view.buffer.apply_tag(tag, start_selection, end_selection);
}
}
}
public override void dispose() {
base.dispose();
if (wait_queue_resize != 0) {
Source.remove(wait_queue_resize);
wait_queue_resize = 0;
}
}
private void on_upper_notify() {
// hack. otherwise the textview would only show the last row(s) when entering a new row on some systems.
scrolled_window.height_request = int.min(scrolled_window.max_content_height, (int) scrolled_window.vadjustment.upper + text_view.margin_top + text_view.margin_bottom);
scrolled_window.vadjustment.page_size = double.min(scrolled_window.height_request - (text_view.margin_top + text_view.margin_bottom), scrolled_window.vadjustment.upper);
// hack for vscrollbar not requiring space and making textview higher //TODO doesn't resize immediately
scrolled_window.get_vscrollbar().visible = (scrolled_window.vadjustment.upper > scrolled_window.max_content_height - 2 * this.vscrollbar_min_height);
start_queue_resize_if_needed();
}
private void start_queue_resize_if_needed() {
if (wait_queue_resize == 0) {
wait_queue_resize = Timeout.add(100, queue_resize_if_needed);
}
}
private bool queue_resize_if_needed() {
if (scrolled_window.get_height() == scrolled_window.height_request) {
wait_queue_resize = 0;
return false;
} else {
queue_resize();
return true;
}
}
private bool on_text_input_key_press(EventControllerKey controller, uint keyval, uint keycode, Gdk.ModifierType state) {
// Enter pressed -> Send message (except if it was Shift+Enter)
if (keyval in new uint[]{ Key.Return, Key.KP_Enter }) {
// Allow the text view to process the event. Needed for IME.
if (text_view.im_context_filter_keypress(controller.get_current_event())) {
return true;
}
if ((state & ModifierType.SHIFT_MASK) > 0) {
// Let the default handler normally insert a newline if shift was hold
return false;
} else if (text_view.buffer.text.strip() != "") {
send_text();
}
return true;
}
if (keyval == Key.Escape) {
cancel_input();
}
// Style text section bold (CTRL + b) or italic (CTRL + i)
if ((state & ModifierType.CONTROL_MASK) > 0) {
if (keyval in new uint[]{ Key.i, Key.b }) {
TextIter start_selection, end_selection;
text_view.buffer.get_selection_bounds(out start_selection, out end_selection);
TextTag tag = null;
bool already_formatted = false;
var markup_types = get_markup_types_from_iter(start_selection);
if (keyval == Key.i) {
tag = italic_tag;
already_formatted = markup_types.contains(Xep.MessageMarkup.SpanType.EMPHASIS);
} else if (keyval == Key.b) {
tag = bold_tag;
already_formatted = markup_types.contains(Xep.MessageMarkup.SpanType.STRONG_EMPHASIS);
} else if (keyval == Key.s) {
tag = strikethrough_tag;
already_formatted = markup_types.contains(Xep.MessageMarkup.SpanType.DELETED);
}
if (tag != null) {
if (already_formatted) {
text_view.buffer.remove_tag(tag, start_selection, end_selection);
} else {
text_view.buffer.apply_tag(tag, start_selection, end_selection);
}
}
}
}
return false;
}
public Gee.List<Xep.MessageMarkup.Span> get_markups() {
var markups = new HashMap<Xep.MessageMarkup.SpanType, Xep.MessageMarkup.SpanType>();
markups[Xep.MessageMarkup.SpanType.EMPHASIS] = Xep.MessageMarkup.SpanType.EMPHASIS;
markups[Xep.MessageMarkup.SpanType.STRONG_EMPHASIS] = Xep.MessageMarkup.SpanType.STRONG_EMPHASIS;
markups[Xep.MessageMarkup.SpanType.DELETED] = Xep.MessageMarkup.SpanType.DELETED;
var ended_groups = new ArrayList<Xep.MessageMarkup.Span>();
Xep.MessageMarkup.Span current_span = null;
TextIter iter;
text_view.buffer.get_start_iter(out iter);
int i = 0;
do {
var char_markups = get_markup_types_from_iter(iter);
// Not the same set of markups as last character -> end all spans
if (current_span != null && (!char_markups.contains_all(current_span.types) || !current_span.types.contains_all(char_markups))) {
ended_groups.add(current_span);
current_span = null;
}
if (char_markups.size > 0) {
if (current_span == null) {
current_span = new Xep.MessageMarkup.Span() { types=char_markups, start_char=i, end_char=i + 1 };
} else {
current_span.end_char = i + 1;
}
}
i++;
} while (iter.forward_char());
if (current_span != null) {
ended_groups.add(current_span);
}
return ended_groups;
}
private Gee.List<Xep.MessageMarkup.SpanType> get_markup_types_from_iter(TextIter iter) {
var ret = new ArrayList<Xep.MessageMarkup.SpanType>();
foreach (TextTag tag in iter.get_tags()) {
if (tag.style == Pango.Style.ITALIC) {
ret.add(Xep.MessageMarkup.SpanType.EMPHASIS);
} else if (tag.weight == Pango.Weight.BOLD) {
ret.add(Xep.MessageMarkup.SpanType.STRONG_EMPHASIS);
} else if (tag.strikethrough) {
ret.add(Xep.MessageMarkup.SpanType.DELETED);
}
}
return ret;
}
}
}
|
