Taskbar: Add a factory function for QuickLaunchWidget

This helps propagate errors that might happen when constructing the
quick launch menu. However, the errors are not propagated all the way
yet.

3 files changed, 39 insertions, 12 deletions

diff --git a/Userland/Services/Taskbar/QuickLaunchWidget.cpp b/Userland/Services/Taskbar/QuickLaunchWidget.cpp
index 85985ac924..78db4e10e1 100644
--- a/Userland/Services/Taskbar/QuickLaunchWidget.cpp
+++ b/Userland/Services/Taskbar/QuickLaunchWidget.cpp
@@ -6,6 +6,7 @@
 
 #include "QuickLaunchWidget.h"
 #include <AK/LexicalPath.h>
+#include <AK/OwnPtr.h>
 #include <Kernel/API/InodeWatcherFlags.h>
 #include <LibConfig/Client.h>
 #include <LibCore/FileWatcher.h>
@@ -82,7 +83,25 @@ DeprecatedString QuickLaunchEntryFile::name() const
     return m_path;
 }
 
-QuickLaunchWidget::QuickLaunchWidget()
+ErrorOr<NonnullRefPtr<QuickLaunchWidget>> QuickLaunchWidget::create()
+{
+    Vector<NonnullOwnPtr<QuickLaunchEntry>> entries;
+    auto keys = Config::list_keys("Taskbar"sv, quick_launch);
+    for (auto& name : keys) {
+        auto value = Config::read_string("Taskbar"sv, quick_launch, name);
+        auto entry = QuickLaunchEntry::create_from_config_value(value);
+        if (!entry)
+            continue;
+
+        entries.append(entry.release_nonnull());
+    }
+
+    auto widget = TRY(AK::adopt_nonnull_ref_or_enomem(new (nothrow) QuickLaunchWidget(move(entries))));
+    TRY(widget->create_context_menu());
+    return widget;
+}
+
+QuickLaunchWidget::QuickLaunchWidget(Vector<NonnullOwnPtr<QuickLaunchEntry>> entries)
 {
     set_shrink_to_fit(true);
     set_layout<GUI::HorizontalBoxLayout>();
@@ -90,8 +109,17 @@ QuickLaunchWidget::QuickLaunchWidget()
     set_frame_thickness(0);
     set_fixed_height(24);
 
+    for (auto& entry : entries) {
+        auto name = entry->name();
+        add_or_adjust_button(name, move(entry));
+    }
+}
+
+ErrorOr<void> QuickLaunchWidget::create_context_menu()
+{
+    auto icon = TRY(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/delete.png"sv));
     m_context_menu = GUI::Menu::construct();
-    m_context_menu_default_action = GUI::Action::create("&Remove", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/delete.png"sv).release_value_but_fixme_should_propagate_errors(), [this](auto&) {
+    m_context_menu_default_action = GUI::Action::create("&Remove", icon, [this](auto&) {
         Config::remove_key("Taskbar"sv, quick_launch, m_context_menu_app_name);
         auto button = find_child_of_type_named<GUI::Button>(m_context_menu_app_name);
         if (button) {
@@ -100,14 +128,7 @@ QuickLaunchWidget::QuickLaunchWidget()
     });
     m_context_menu->add_action(*m_context_menu_default_action);
 
-    auto keys = Config::list_keys("Taskbar"sv, quick_launch);
-    for (auto& name : keys) {
-        auto value = Config::read_string("Taskbar"sv, quick_launch, name);
-        auto entry = QuickLaunchEntry::create_from_config_value(value);
-        if (!entry)
-            continue;
-        add_or_adjust_button(name, entry.release_nonnull());
-    }
+    return {};
 }
 
 OwnPtr<QuickLaunchEntry> QuickLaunchEntry::create_from_config_value(StringView value)
diff --git a/Userland/Services/Taskbar/QuickLaunchWidget.h b/Userland/Services/Taskbar/QuickLaunchWidget.h
index 78a9bc19e0..e3203d7704 100644
--- a/Userland/Services/Taskbar/QuickLaunchWidget.h
+++ b/Userland/Services/Taskbar/QuickLaunchWidget.h
@@ -6,6 +6,8 @@
 
 #pragma once
 
+#include <AK/Error.h>
+#include <AK/RefPtr.h>
 #include <LibConfig/Listener.h>
 #include <LibCore/FileWatcher.h>
 #include <LibDesktop/AppFile.h>
@@ -78,6 +80,7 @@ class QuickLaunchWidget : public GUI::Frame
     C_OBJECT(QuickLaunchWidget);
 
 public:
+    static ErrorOr<NonnullRefPtr<QuickLaunchWidget>> create();
     virtual ~QuickLaunchWidget() override = default;
 
     virtual void config_key_was_removed(DeprecatedString const&, DeprecatedString const&, DeprecatedString const&) override;
@@ -87,8 +90,10 @@ public:
     virtual void drop_event(GUI::DropEvent&) override;
 
 private:
-    QuickLaunchWidget();
+    explicit QuickLaunchWidget(Vector<NonnullOwnPtr<QuickLaunchEntry>> entries);
     void add_or_adjust_button(DeprecatedString const&, NonnullOwnPtr<QuickLaunchEntry>&&);
+    ErrorOr<void> create_context_menu();
+
     RefPtr<GUI::Menu> m_context_menu;
     RefPtr<GUI::Action> m_context_menu_default_action;
     DeprecatedString m_context_menu_app_name;
diff --git a/Userland/Services/Taskbar/TaskbarWindow.cpp b/Userland/Services/Taskbar/TaskbarWindow.cpp
index bcbaead65a..3730a7d49a 100644
--- a/Userland/Services/Taskbar/TaskbarWindow.cpp
+++ b/Userland/Services/Taskbar/TaskbarWindow.cpp
@@ -63,7 +63,8 @@ TaskbarWindow::TaskbarWindow()
     main_widget.set_layout<GUI::HorizontalBoxLayout>();
     main_widget.layout()->set_margins({ 2, 3, 0, 3 });
 
-    m_quick_launch = Taskbar::QuickLaunchWidget::construct();
+    // FIXME: Propagate this error up as well
+    m_quick_launch = MUST(Taskbar::QuickLaunchWidget::create());
     main_widget.add_child(*m_quick_launch);
 
     m_task_button_container = main_widget.add<GUI::Widget>();