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Ladybird: Add a simple TaskManager window for tracking child processes

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This implementation uses a really basic WebView to update stats once
a second. In the future it might make more sense to both move the
details into LibWebView, and to create a native widget for each platform
to remove the overhead of having an extra WebView.
This commit is contained in:
Andrew Kaster
2024-03-26 11:38:12 -06:00
committed by Andrew Kaster
parent 096feaaeb8
commit 31c0d00ab1
8 changed files with 185 additions and 0 deletions
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67
Userland/Libraries/LibWebView/ProcessManager.cpp
View File

@@ -4,6 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibCore/EventLoop.h>
#include <LibCore/System.h>
#include <LibWebView/ProcessManager.h>
@@ -114,4 +115,70 @@ void ProcessManager::update_all_processes()
// FIXME: Actually gather stats in a platform-specific way
}
String ProcessManager::generate_html()
{
StringBuilder builder;
auto processes = m_processes;
builder.append(R"(
<html>
<head>
<style>
table {
width: 100%;
border-collapse: collapse;
}
th {
text-align: left;
border-bottom: 1px solid #aaa;
}
td, th {
padding: 4px;
border: 1px solid #aaa;
}
tr:nth-child(odd) {
background: #f7f7f7;
}
</style>
</head>
<body>
<table>
<thead>
<tr>
<th>Type</th>
<th>PID</th>
<th>Memory Usage</th>
<th>CPU %</th>
</tr>
</thead>
<tbody>
)"sv);
for (auto& process : processes) {
builder.append("<tr>"sv);
builder.append("<td>"sv);
builder.append(WebView::process_name_from_type(process.type));
builder.append("</td>"sv);
builder.append("<td>"sv);
builder.append(MUST(String::number(process.pid)));
builder.append("</td>"sv);
builder.append("<td>"sv);
builder.append(MUST(String::formatted("{} KB", process.memory_usage_kib)));
builder.append("</td>"sv);
builder.append("<td>"sv);
builder.append(MUST(String::formatted("{:.1f}", process.cpu_percent)));
builder.append("</td>"sv);
builder.append("</tr>"sv);
}
builder.append(R"(
</tbody>
</table>
</body>
</html>
)"sv);
return builder.to_string_without_validation();
}
}