Libraries: Move to Userland/Libraries/

1 files changed, 110 insertions, 0 deletions

diff --git a/Userland/Libraries/LibGUI/LinkLabel.cpp b/Userland/Libraries/LibGUI/LinkLabel.cpp
new file mode 100644
index 0000000000..db6dd09188
--- /dev/null
+++ b/Userland/Libraries/LibGUI/LinkLabel.cpp
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2020, Alex McGrath <amk@amk.ie>
+ * 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 <LibGUI/Event.h>
+#include <LibGUI/LinkLabel.h>
+#include <LibGUI/Painter.h>
+#include <LibGUI/Window.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/Palette.h>
+
+REGISTER_WIDGET(GUI, LinkLabel)
+
+namespace GUI {
+
+LinkLabel::LinkLabel(String text)
+    : Label(move(text))
+{
+    set_override_cursor(Gfx::StandardCursor::Hand);
+    set_foreground_role(Gfx::ColorRole::Link);
+    set_focus_policy(FocusPolicy::TabFocus);
+}
+
+void LinkLabel::mousedown_event(MouseEvent& event)
+{
+    Label::mousedown_event(event);
+    if (on_click) {
+        on_click();
+    }
+}
+
+void LinkLabel::keydown_event(KeyEvent& event)
+{
+    Label::keydown_event(event);
+    if (event.key() == KeyCode::Key_Return || event.key() == KeyCode::Key_Space) {
+        if (on_click)
+            on_click();
+    }
+}
+
+void LinkLabel::paint_event(PaintEvent& event)
+{
+    Label::paint_event(event);
+    GUI::Painter painter(*this);
+
+    if (m_hovered)
+        painter.draw_line({ 0, rect().bottom() }, { font().width(text()), rect().bottom() }, palette().link());
+
+    if (is_focused())
+        painter.draw_focus_rect(text_rect(), palette().focus_outline());
+}
+
+void LinkLabel::enter_event(Core::Event& event)
+{
+    Label::enter_event(event);
+    m_hovered = true;
+    update();
+}
+
+void LinkLabel::leave_event(Core::Event& event)
+{
+    Label::leave_event(event);
+    m_hovered = false;
+    update();
+}
+
+void LinkLabel::did_change_text()
+{
+    Label::did_change_text();
+    update_tooltip_if_needed();
+}
+
+void LinkLabel::update_tooltip_if_needed()
+{
+    if (width() < font().width(text())) {
+        set_tooltip(text());
+    } else {
+        set_tooltip({});
+    }
+}
+
+void LinkLabel::resize_event(ResizeEvent& event)
+{
+    Label::resize_event(event);
+    update_tooltip_if_needed();
+}
+
+}