Libraries: Move to Userland/Libraries/

Userland/Libraries/LibGUI/RunningProcessesModel.cpp

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/SharedBuffer.h>
+#include <LibCore/ProcessStatisticsReader.h>
+#include <LibGUI/FileIconProvider.h>
+#include <LibGUI/RunningProcessesModel.h>
+
+namespace GUI {
+
+NonnullRefPtr<RunningProcessesModel> RunningProcessesModel::create()
+{
+    return adopt(*new RunningProcessesModel);
+}
+
+RunningProcessesModel::RunningProcessesModel()
+{
+}
+
+RunningProcessesModel::~RunningProcessesModel()
+{
+}
+
+void RunningProcessesModel::update()
+{
+    m_processes.clear();
+
+    Core::ProcessStatisticsReader reader;
+    auto processes = reader.get_all();
+    if (processes.has_value()) {
+        for (auto& it : processes.value()) {
+            Process process;
+            process.pid = it.value.pid;
+            process.uid = it.value.uid;
+            process.icon = FileIconProvider::icon_for_executable(it.value.executable).bitmap_for_size(16);
+            process.name = it.value.name;
+            m_processes.append(move(process));
+        }
+    }
+
+    did_update();
+}
+
+int RunningProcessesModel::row_count(const GUI::ModelIndex&) const
+{
+    return m_processes.size();
+}
+
+int RunningProcessesModel::column_count(const GUI::ModelIndex&) const
+{
+    return Column::__Count;
+}
+
+String RunningProcessesModel::column_name(int column_index) const
+{
+    switch (column_index) {
+    case Column::Icon:
+        return {};
+    case Column::PID:
+        return "PID";
+    case Column::UID:
+        return "UID";
+    case Column::Name:
+        return "Name";
+    }
+    ASSERT_NOT_REACHED();
+}
+
+GUI::Variant RunningProcessesModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
+{
+    auto& process = m_processes[index.row()];
+
+    if (role == ModelRole::Custom) {
+        return process.pid;
+    }
+
+    if (role == ModelRole::Display) {
+        switch (index.column()) {
+        case Column::Icon:
+            if (!process.icon)
+                return GUI::Icon();
+            return GUI::Icon(*process.icon);
+        case Column::PID:
+            return process.pid;
+        case Column::UID:
+            return process.uid;
+        case Column::Name:
+            return process.name;
+        }
+        ASSERT_NOT_REACHED();
+    }
+    return {};
+}
+
+}