git.iko.soy/unity8
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unity8/plugins/Unity/categories.cpp
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1/*
2 * Copyright (C) 2013 Canonical, Ltd.
3 *
4 * Authors:
5 * Michał Sawicz <michal.sawicz@canonical.com>
6 * Michal Hruby <michal.hruby@canonical.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 3.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
21// self
22#include "categories.h"
23#include "categoryresults.h"
25// TODO: use something from libunity once it's public
26enum CategoryColumn {
27 ID,
28 DISPLAY_NAME,
29 ICON_HINT,
30 RENDERER_NAME,
31 HINTS
32};
34Categories::Categories(QObject* parent)
35 : DeeListModel(parent)
37 m_roles[Categories::RoleId] = "id";
38 m_roles[Categories::RoleName] = "name";
39 m_roles[Categories::RoleIcon] = "icon";
40 m_roles[Categories::RoleRenderer] = "renderer";
41 m_roles[Categories::RoleContentType] = "contentType";
42 m_roles[Categories::RoleHints] = "hints";
43 m_roles[Categories::RoleResults] = "results";
44 m_roles[Categories::RoleCount] = "count";
45 m_roles[Categories::RoleCategoryIndex] = "categoryIndex";
47 // TODO This should not be needed but accumulatting the count changes
48 // makes the visualization more stable and also makes crashes on fast
49 // change of the search term harder to reproduce
50 m_timer.setSingleShot(true);
51 m_timer.setInterval(50);
52 connect(&m_timer, &QTimer::timeout, this, &Categories::onEmitCountChanged);
55DeeListModel*
56Categories::getResults(int index) const
58 if (!m_results.contains(index)) {
59 CategoryResults* results = new CategoryResults(const_cast<Categories*>(this));
60 results->setCategoryIndex(index);
61 connect(results, &DeeListModel::countChanged, this, &Categories::onCountChanged);
63 unsigned categoryIndex = static_cast<unsigned>(index);
64 auto unity_results = m_unityScope->GetResultsForCategory(categoryIndex);
65 results->setModel(unity_results->model());
67 m_results.insert(index, results);
68 }
70 return m_results[index];
73void Categories::onCategoriesModelChanged(unity::glib::Object<DeeModel> model)
75 m_updatedCategories.clear();
76 // FIXME: this might destroy the renderer view and re-create it, optimize?
77 Q_FOREACH(DeeListModel* model, m_results) {
78 delete model;
79 }
80 m_results.clear();
81 setModel(model);
84void
85Categories::setUnityScope(const unity::dash::Scope::Ptr& scope)
87 m_unityScope = scope;
89 // no need to call this, we'll get notified
90 //setModel(m_unityScope->categories()->model());
92 m_categoriesChangedConnection.disconnect();
93 m_categoriesChangedConnection =
94 m_unityScope->categories()->model.changed.connect(sigc::mem_fun(this, &Categories::onCategoriesModelChanged));
97void
98Categories::onCountChanged()
100 CategoryResults* results = qobject_cast<CategoryResults*>(sender());
101 if (results) {
102 m_updatedCategories << results->categoryIndex();
103 m_timer.start();
104 }
107void
108Categories::onEmitCountChanged()
110 QVector<int> roles;
111 roles.append(Categories::RoleCount);
112 Q_FOREACH(int categoryIndex, m_updatedCategories) {
113 if (!m_results.contains(categoryIndex)) continue;
114 QModelIndex changedIndex = index(categoryIndex);
115 Q_EMIT dataChanged(changedIndex, changedIndex, roles);
116 }
117 m_updatedCategories.clear();
120QHash<int, QByteArray>
121Categories::roleNames() const
123 return m_roles;
126QVariant
127Categories::data(const QModelIndex& index, int role) const
129 if (!index.isValid()) {
130 return QVariant();
131 }
133 switch (role) {
134 case RoleId:
135 return DeeListModel::data(index, CategoryColumn::ID);
136 case RoleName:
137 return DeeListModel::data(index, CategoryColumn::DISPLAY_NAME);
138 case RoleIcon:
139 return DeeListModel::data(index, CategoryColumn::ICON_HINT);
140 case RoleRenderer:
141 return DeeListModel::data(index, CategoryColumn::RENDERER_NAME);
142 case RoleContentType:
143 {
144 auto hints = DeeListModel::data(index, CategoryColumn::HINTS).toHash();
145 return hints.contains("content-type") ? hints["content-type"] : QVariant(QString("default"));
146 }
147 case RoleHints:
148 return DeeListModel::data(index, CategoryColumn::HINTS);
149 case RoleResults:
150 return QVariant::fromValue(getResults(index.row()));
151 case RoleCount:
152 return QVariant::fromValue(getResults(index.row())->rowCount());
153 case RoleCategoryIndex:
154 return QVariant::fromValue(index.row());
155 default:
156 return QVariant();
157 }