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
|
// SPDX-FileCopyrightText: Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later
#include "GridImagePackModel.h"
#include <QTextBoundaryFinder>
#include <algorithm>
#include "Cache_p.h"
Q_DECLARE_METATYPE(StickerImage)
GridImagePackModel::GridImagePackModel(const std::string &roomId, bool stickers, QObject *parent)
: QAbstractListModel(parent)
, room_id(roomId)
{
[[maybe_unused]] static auto id = qRegisterMetaType<StickerImage>();
auto originalPacks = cache::client()->getImagePacks(room_id, stickers);
for (auto &pack : originalPacks) {
PackDesc newPack{};
newPack.packname =
pack.pack.pack ? QString::fromStdString(pack.pack.pack->display_name) : QString();
newPack.room_id = pack.source_room;
newPack.state_key = pack.state_key;
newPack.images.resize(pack.pack.images.size());
std::ranges::transform(std::move(pack.pack.images), newPack.images.begin(), [](auto &&img) {
return std::pair(std::move(img.second), QString::fromStdString(img.first));
});
size_t packRowCount =
(newPack.images.size() / columns) + (newPack.images.size() % columns ? 1 : 0);
newPack.firstRow = rowToPack.size();
for (size_t i = 0; i < packRowCount; i++)
rowToPack.push_back(packs.size());
packs.push_back(std::move(newPack));
}
// prepare search index
auto insertParts = [this](const QString &str, std::pair<std::uint32_t, std::uint32_t> id) {
QTextBoundaryFinder finder(QTextBoundaryFinder::BoundaryType::Word, str);
finder.toStart();
do {
auto start = finder.position();
finder.toNextBoundary();
auto end = finder.position();
auto ref = str.midRef(start, end - start).trimmed();
if (!ref.isEmpty())
trie_.insert<ElementRank::second>(ref.toUcs4(), id);
} while (finder.position() < str.size());
};
std::uint32_t packIndex = 0;
for (const auto &pack : packs) {
std::uint32_t imgIndex = 0;
for (const auto &img : pack.images) {
std::pair<std::uint32_t, std::uint32_t> key{packIndex, imgIndex};
QString string1 = img.second.toCaseFolded();
QString string2 = QString::fromStdString(img.first.body).toCaseFolded();
if (!string1.isEmpty()) {
trie_.insert<ElementRank::first>(string1.toUcs4(), key);
insertParts(string1, key);
}
if (!string2.isEmpty()) {
trie_.insert<ElementRank::first>(string2.toUcs4(), key);
insertParts(string2, key);
}
imgIndex++;
}
packIndex++;
}
}
int
GridImagePackModel::rowCount(const QModelIndex &) const
{
return static_cast<int>(searchString_.isEmpty() ? rowToPack.size()
: rowToFirstRowEntryFromSearch.size());
}
QHash<int, QByteArray>
GridImagePackModel::roleNames() const
{
return {
{Roles::PackName, "packname"},
{Roles::Row, "row"},
};
}
QVariant
GridImagePackModel::data(const QModelIndex &index, int role) const
{
if (index.row() < rowCount() && index.row() >= 0) {
if (searchString_.isEmpty()) {
const auto &pack = packs[rowToPack[index.row()]];
switch (role) {
case Roles::PackName:
return pack.packname;
case Roles::Row: {
std::size_t offset = static_cast<std::size_t>(index.row()) - pack.firstRow;
QList<StickerImage> imgs;
auto endOffset = std::min((offset + 1) * columns, pack.images.size());
for (std::size_t img = offset * columns; img < endOffset; img++) {
const auto &data = pack.images.at(img);
imgs.push_back({.url = QString::fromStdString(data.first.url),
.shortcode = data.second,
.body = QString::fromStdString(data.first.body),
.descriptor_ = std::vector{
pack.room_id,
pack.state_key,
data.second.toStdString(),
}});
}
return QVariant::fromValue(imgs);
}
default:
return {};
}
} else {
if (static_cast<size_t>(index.row()) >= rowToFirstRowEntryFromSearch.size())
return {};
const auto firstIndex = rowToFirstRowEntryFromSearch[index.row()];
const auto firstEntry = currentSearchResult[firstIndex];
const auto &pack = packs[firstEntry.first];
switch (role) {
case Roles::PackName:
return pack.packname;
case Roles::Row: {
QList<StickerImage> imgs;
for (auto img = firstIndex;
imgs.size() < columns && img < currentSearchResult.size() &&
currentSearchResult[img].first == firstEntry.first;
img++) {
const auto &data = pack.images.at(currentSearchResult[img].second);
imgs.push_back({.url = QString::fromStdString(data.first.url),
.shortcode = data.second,
.body = QString::fromStdString(data.first.body),
.descriptor_ = std::vector{
pack.room_id,
pack.state_key,
data.second.toStdString(),
}});
}
return QVariant::fromValue(imgs);
}
default:
return {};
}
}
}
return {};
}
void
GridImagePackModel::setSearchString(QString key)
{
beginResetModel();
currentSearchResult.clear();
rowToFirstRowEntryFromSearch.clear();
searchString_ = key;
if (!key.isEmpty()) {
auto searchParts = key.toCaseFolded().toUcs4();
auto tempResults =
trie_.search(searchParts, static_cast<std::size_t>(columns * columns * 4));
std::ranges::sort(tempResults);
currentSearchResult = std::move(tempResults);
std::size_t lastPack = -1;
int columnIndex = 0;
for (std::size_t i = 0; i < currentSearchResult.size(); i++) {
auto elem = currentSearchResult[i];
if (elem.first != lastPack || columnIndex == columns) {
columnIndex = 0;
lastPack = elem.first;
rowToFirstRowEntryFromSearch.push_back(i);
}
columnIndex++;
}
}
endResetModel();
emit newSearchString();
}
|
