Embed docs as null://docs + web.help api

4 files changed, 90 insertions, 1 deletions

diff --git a/src/schemes/NullSchemeHandler.cpp b/src/schemes/NullSchemeHandler.cpp
new file mode 100644
index 0000000..203e673
--- /dev/null
+++ b/src/schemes/NullSchemeHandler.cpp
@@ -0,0 +1,46 @@
+#include "NullSchemeHandler.hpp"
+#include <qstringview.h>
+#include <qwebengineurlrequestjob.h>
+
+void NullSchemeHandler::requestStarted(QWebEngineUrlRequestJob *job) {
+  auto url = job->requestUrl();
+
+  if (url.host() == "docs") {
+    QBuffer *buffer = new QBuffer(job);
+    buffer->setData(read_static_docs_file(url.path()));
+    buffer->open(QIODevice::ReadOnly);
+    job->reply(get_content_type(url.path()), buffer);
+  } else {
+    job->reply("text/html", new QBuffer(job));
+  }
+}
+
+QByteArray NullSchemeHandler::read_static_docs_file(const QString &path) {
+  QFile file(NULL_DOCS_DIR + path);
+  if (!file.exists())
+    return read_index_html();
+
+  if (file.open(QIODevice::ReadOnly)) {
+    auto contents = file.readAll();
+    file.close();
+    return contents;
+  }
+  return QByteArray{};
+}
+
+QByteArray NullSchemeHandler::read_index_html() {
+  QFile file(NULL_DOCS_DIR + QString("/index.html"));
+  qDebug() << ":::" << file.exists();
+  if (file.open(QIODevice::ReadOnly)) {
+    auto contents = file.readAll();
+    file.close();
+    return contents;
+  }
+  return QByteArray{};
+}
+
+QByteArray NullSchemeHandler::get_content_type(const QString &path) {
+  if (path.endsWith(".css"))
+    return "text/css";
+  return "text/html";
+}
diff --git a/src/schemes/NullSchemeHandler.hpp b/src/schemes/NullSchemeHandler.hpp
new file mode 100644
index 0000000..bc05076
--- /dev/null
+++ b/src/schemes/NullSchemeHandler.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <QWebEngineUrlRequestJob>
+#include <QWebEngineUrlSchemeHandler>
+#include <QtCore>
+#include <qcontainerfwd.h>
+#include <qdebug.h>
+#include <qurlquery.h>
+
+// TODO: Install doc dir and pass this path during build
+#define NULL_DOCS_DIR "./doc"
+
+class NullSchemeHandler : public QWebEngineUrlSchemeHandler {
+  Q_OBJECT
+
+public:
+  static NullSchemeHandler &instance() {
+    static NullSchemeHandler handler;
+    return handler;
+  }
+
+  void requestStarted(QWebEngineUrlRequestJob *job) override;
+
+private:
+  NullSchemeHandler() = default;
+
+  QByteArray read_static_docs_file(const QString &path);
+  QByteArray read_index_html();
+  QByteArray get_content_type(const QString &path);
+};
diff --git a/src/schemes/schemes.hpp b/src/schemes/schemes.hpp
index f33d74b..439519c 100644
--- a/src/schemes/schemes.hpp
+++ b/src/schemes/schemes.hpp
@@ -13,4 +13,15 @@ void register_nullrpc_scheme() {
   QWebEngineUrlScheme::registerScheme(scheme);
 }
 
-void register_all_schemes() { register_nullrpc_scheme(); }
+void register_null_scheme() {
+  QWebEngineUrlScheme scheme("null");
+  scheme.setSyntax(QWebEngineUrlScheme::Syntax::Host);
+  scheme.setFlags(QWebEngineUrlScheme::SecureScheme | QWebEngineUrlScheme::LocalScheme |
+                  QWebEngineUrlScheme::LocalAccessAllowed);
+  QWebEngineUrlScheme::registerScheme(scheme);
+}
+
+void register_all_schemes() {
+  register_nullrpc_scheme();
+  register_null_scheme();
+}
diff --git a/src/widgets/BrowserApp.cpp b/src/widgets/BrowserApp.cpp
index c3c2313..e57b923 100644
--- a/src/widgets/BrowserApp.cpp
+++ b/src/widgets/BrowserApp.cpp
@@ -8,6 +8,7 @@
 #include "events/NotificationReceivedEvent.hpp"
 #include "events/WinCreatedEvent.hpp"
 #include "schemes/NullRpcSchemeHandler.hpp"
+#include "schemes/NullSchemeHandler.hpp"
 #include "widgets/BrowserWindow.hpp"
 
 #include "widgets/BrowserApp.hpp"
@@ -59,6 +60,7 @@ void BrowserApp::setup_profile(QWebEngineProfile *profile) {
   });
   profile->setPersistentPermissionsPolicy(configuration.permission_persistance_policy());
   profile->installUrlSchemeHandler("nullrpc", &NullRPCSchemeHandler::instance());
+  profile->installUrlSchemeHandler("null", &NullSchemeHandler::instance());
 }
 
 BrowserWindow *BrowserApp::create_window(const QStringList &urls) {