1 files changed, 179 insertions, 0 deletions
diff --git a/ui/qt/widgets/splash_overlay.cpp b/ui/qt/widgets/splash_overlay.cpp
new file mode 100644
index 00000000..1b9e1f41
--- /dev/null
+++ b/ui/qt/widgets/splash_overlay.cpp
@@ -0,0 +1,179 @@
+/* splash_overlay.cpp
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "splash_overlay.h"
+#include <ui_splash_overlay.h>
+#include "main_application.h"
+
+#include <QPainter>
+
+#include "ui/util.h"
+#include <wsutil/utf8_entities.h>
+#include <ui/qt/utils/tango_colors.h>
+
+#ifdef HAVE_LUA
+#include "epan/wslua/init_wslua.h"
+#endif
+
+#include "extcap.h"
+
+// Uncomment to slow the update progress
+//#define THROTTLE_STARTUP 1
+
+/*
+ * Update frequency for the splash screen, given in milliseconds.
+ */
+const int info_update_freq_ = 65; // ~15 fps
+
+void splash_update(register_action_e action, const char *message, void *) {
+    emit mainApp->registerUpdate(action, message);
+}
+
+SplashOverlay::SplashOverlay(QWidget *parent) :
+    QWidget(parent),
+    so_ui_(new Ui::SplashOverlay),
+    last_action_(RA_NONE),
+    register_cur_(0)
+{
+    so_ui_->setupUi(this);
+
+    int register_max = RA_BASE_COUNT;
+#ifdef HAVE_LUA
+    register_max++;
+#endif
+    register_max++;
+
+    so_ui_->progressBar->setMaximum(register_max);
+    elapsed_timer_.start();
+
+    QColor bg = QColor(tango_aluminium_6);
+    bg.setAlphaF(0.2f);
+    QPalette pal;
+    pal.setColor(QPalette::Window, bg);
+    setPalette(pal);
+    setAutoFillBackground(true);
+
+    setStyleSheet(QString(
+                      "QFrame#progressBand {"
+                      "  background: %1;"
+                      "}"
+                      "QLabel {"
+                      "  color: white;"
+                      "  background: transparent;"
+                      "}"
+                      "QProgressBar {"
+                      "  height: 1em;"
+                      "  width: 20em;"
+                      "  border: 0.1em solid white;"
+                      "  border-radius: 0.2em;"
+                      "  color: white;"
+                      "  background: transparent;"
+                      "}"
+                      "QProgressBar::chunk {"
+                      "  width: 0.1em;"
+                      "  background: rgba(255, 255, 255, 50%);"
+                      "}"
+                      )
+                  .arg(QColor(tango_aluminium_4).name()));
+
+    connect(mainApp, &MainApplication::splashUpdate, this, &SplashOverlay::splashUpdate);
+}
+
+SplashOverlay::~SplashOverlay()
+{
+    delete so_ui_;
+}
+
+// Useful for debugging on fast machines.
+#ifdef THROTTLE_STARTUP
+#include <QThread>
+class ThrottleThread : public QThread
+{
+public:
+    static void msleep(unsigned long msecs)
+    {
+        QThread::msleep(msecs);
+    }
+};
+#endif
+
+void SplashOverlay::splashUpdate(register_action_e action, const char *message)
+{
+    QString action_msg = UTF8_HORIZONTAL_ELLIPSIS;
+
+#ifdef THROTTLE_STARTUP
+    ThrottleThread::msleep(10);
+#endif
+
+    if (last_action_ == action && (elapsed_timer_.elapsed() < info_update_freq_)) {
+        // Nothing to update yet
+        return;
+    }
+
+    if (last_action_ != action) {
+        register_cur_++;
+    }
+    last_action_ = action;
+
+    switch(action) {
+    case RA_DISSECTORS:
+        action_msg = tr("Initializing dissectors");
+        break;
+    case RA_LISTENERS:
+        action_msg = tr("Initializing tap listeners");
+        break;
+    case RA_EXTCAP:
+        action_msg = tr("Initializing external capture plugins");
+        break;
+    case RA_REGISTER:
+        action_msg = tr("Registering dissectors");
+        break;
+    case RA_PLUGIN_REGISTER:
+        action_msg = tr("Registering plugins");
+        break;
+    case RA_HANDOFF:
+        action_msg = tr("Handing off dissectors");
+        break;
+    case RA_PLUGIN_HANDOFF:
+        action_msg = tr("Handing off plugins");
+        break;
+    case RA_LUA_PLUGINS:
+        action_msg = tr("Loading Lua plugins");
+        break;
+    case RA_LUA_DEREGISTER:
+        action_msg = tr("Removing Lua plugins");
+        break;
+    case RA_PREFERENCES:
+        action_msg = tr("Loading module preferences");
+        break;
+    case RA_INTERFACES:
+        action_msg = tr("Finding local interfaces");
+        break;
+    case RA_PREFERENCES_APPLY:
+        action_msg = tr("Applying changed preferences");
+        break;
+    default:
+        action_msg = tr("(Unknown action)");
+        break;
+    }
+
+    if (message) {
+        if (!strncmp(message, "proto_register_", 15))
+            message += 15;
+        else if (!strncmp(message, "proto_reg_handoff_", 18))
+            message += 18;
+        action_msg.append(" ").append(message);
+    }
+    so_ui_->actionLabel->setText(action_msg);
+
+    so_ui_->progressBar->setValue(register_cur_);
+
+    mainApp->processEvents(QEventLoop::ExcludeUserInputEvents | QEventLoop::ExcludeSocketNotifiers, 1);
+    elapsed_timer_.restart();
+}