Libraries: Move to Userland/Libraries/

1 files changed, 204 insertions, 0 deletions

diff --git a/Userland/Libraries/LibGUI/AbstractButton.cpp b/Userland/Libraries/LibGUI/AbstractButton.cpp
new file mode 100644
index 0000000000..f2846cb78b
--- /dev/null
+++ b/Userland/Libraries/LibGUI/AbstractButton.cpp
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
+ * 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 <AK/JsonObject.h>
+#include <LibCore/Timer.h>
+#include <LibGUI/AbstractButton.h>
+#include <LibGUI/Painter.h>
+#include <LibGUI/Window.h>
+#include <LibGfx/Palette.h>
+
+namespace GUI {
+
+AbstractButton::AbstractButton(String text)
+{
+    set_text(move(text));
+
+    set_focus_policy(GUI::FocusPolicy::StrongFocus);
+    set_background_role(Gfx::ColorRole::Button);
+    set_foreground_role(Gfx::ColorRole::ButtonText);
+
+    m_auto_repeat_timer = add<Core::Timer>();
+    m_auto_repeat_timer->on_timeout = [this] {
+        click();
+    };
+
+    REGISTER_STRING_PROPERTY("text", text, set_text);
+    REGISTER_BOOL_PROPERTY("checked", is_checked, set_checked);
+    REGISTER_BOOL_PROPERTY("checkable", is_checkable, set_checkable);
+    REGISTER_BOOL_PROPERTY("exclusive", is_exclusive, set_exclusive);
+}
+
+AbstractButton::~AbstractButton()
+{
+}
+
+void AbstractButton::set_text(String text)
+{
+    if (m_text == text)
+        return;
+    m_text = move(text);
+    update();
+}
+
+void AbstractButton::set_checked(bool checked)
+{
+    if (m_checked == checked)
+        return;
+    m_checked = checked;
+
+    if (is_exclusive() && checked && parent_widget()) {
+        bool sibling_had_focus = false;
+        parent_widget()->for_each_child_of_type<AbstractButton>([&](auto& sibling) {
+            if (!sibling.is_exclusive())
+                return IterationDecision::Continue;
+            if (window() && window()->focused_widget() == &sibling)
+                sibling_had_focus = true;
+            if (!sibling.is_checked())
+                return IterationDecision::Continue;
+            sibling.m_checked = false;
+            sibling.update();
+            if (sibling.on_checked)
+                sibling.on_checked(false);
+            return IterationDecision::Continue;
+        });
+        m_checked = true;
+        if (sibling_had_focus)
+            set_focus(true);
+    }
+
+    update();
+    if (on_checked)
+        on_checked(checked);
+}
+
+void AbstractButton::set_checkable(bool checkable)
+{
+    if (m_checkable == checkable)
+        return;
+    m_checkable = checkable;
+    update();
+}
+
+void AbstractButton::mousemove_event(MouseEvent& event)
+{
+    bool is_over = rect().contains(event.position());
+    m_hovered = is_over;
+    if (event.buttons() & MouseButton::Left) {
+        bool being_pressed = is_over;
+        if (being_pressed != m_being_pressed) {
+            m_being_pressed = being_pressed;
+            if (m_auto_repeat_interval) {
+                if (!m_being_pressed)
+                    m_auto_repeat_timer->stop();
+                else
+                    m_auto_repeat_timer->start(m_auto_repeat_interval);
+            }
+            update();
+        }
+    }
+    Widget::mousemove_event(event);
+}
+
+void AbstractButton::mousedown_event(MouseEvent& event)
+{
+    if (event.button() == MouseButton::Left) {
+        m_being_pressed = true;
+        update();
+
+        if (m_auto_repeat_interval) {
+            click();
+            m_auto_repeat_timer->start(m_auto_repeat_interval);
+        }
+    }
+    Widget::mousedown_event(event);
+}
+
+void AbstractButton::mouseup_event(MouseEvent& event)
+{
+    if (event.button() == MouseButton::Left) {
+        bool was_auto_repeating = m_auto_repeat_timer->is_active();
+        m_auto_repeat_timer->stop();
+        bool was_being_pressed = m_being_pressed;
+        m_being_pressed = false;
+        update();
+        if (was_being_pressed && !was_auto_repeating)
+            click(event.modifiers());
+    }
+    Widget::mouseup_event(event);
+}
+
+void AbstractButton::enter_event(Core::Event&)
+{
+    m_hovered = true;
+    update();
+}
+
+void AbstractButton::leave_event(Core::Event&)
+{
+    m_hovered = false;
+    update();
+}
+
+void AbstractButton::keydown_event(KeyEvent& event)
+{
+    if (event.key() == KeyCode::Key_Return || event.key() == KeyCode::Key_Space) {
+        click(event.modifiers());
+        event.accept();
+        return;
+    }
+    Widget::keydown_event(event);
+}
+
+void AbstractButton::paint_text(Painter& painter, const Gfx::IntRect& rect, const Gfx::Font& font, Gfx::TextAlignment text_alignment)
+{
+    auto clipped_rect = rect.intersected(this->rect());
+
+    if (!is_enabled()) {
+        painter.draw_text(clipped_rect.translated(1, 1), text(), font, text_alignment, Color::White, Gfx::TextElision::Right);
+        painter.draw_text(clipped_rect, text(), font, text_alignment, Color::from_rgb(0x808080), Gfx::TextElision::Right);
+        return;
+    }
+
+    if (text().is_empty())
+        return;
+    painter.draw_text(clipped_rect, text(), font, text_alignment, palette().color(foreground_role()), Gfx::TextElision::Right);
+}
+
+void AbstractButton::change_event(Event& event)
+{
+    if (event.type() == Event::Type::EnabledChange) {
+        if (!is_enabled()) {
+            bool was_being_pressed = m_being_pressed;
+            m_being_pressed = false;
+            if (was_being_pressed)
+                update();
+        }
+    }
+    Widget::change_event(event);
+}
+
+}