diff options
Diffstat (limited to 'Services/WindowServer/Menu.cpp')
-rw-r--r-- | Services/WindowServer/Menu.cpp | 568 |
1 files changed, 0 insertions, 568 deletions
diff --git a/Services/WindowServer/Menu.cpp b/Services/WindowServer/Menu.cpp deleted file mode 100644 index 4d204406c2..0000000000 --- a/Services/WindowServer/Menu.cpp +++ /dev/null @@ -1,568 +0,0 @@ -/* - * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org> - * Copyright (c) 2020, Shannon Booth <shannon.ml.booth@gmail.com> - * 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 "Menu.h" -#include "Event.h" -#include "MenuItem.h" -#include "MenuManager.h" -#include "Screen.h" -#include "Window.h" -#include "WindowManager.h" -#include <LibGfx/Bitmap.h> -#include <LibGfx/CharacterBitmap.h> -#include <LibGfx/Font.h> -#include <LibGfx/Painter.h> -#include <LibGfx/StylePainter.h> -#include <LibGfx/Triangle.h> -#include <WindowServer/ClientConnection.h> -#include <WindowServer/WindowClientEndpoint.h> - -namespace WindowServer { - -Menu::Menu(ClientConnection* client, int menu_id, const String& name) - : Core::Object(client) - , m_client(client) - , m_menu_id(menu_id) - , m_name(move(name)) -{ -} - -Menu::~Menu() -{ -} - -void Menu::set_title_font(const Gfx::Font& font) -{ - m_title_font = &font; -} - -const Gfx::Font& Menu::title_font() const -{ - return *m_title_font; -} - -const Gfx::Font& Menu::font() const -{ - return Gfx::FontDatabase::default_font(); -} - -static const char* s_checked_bitmap_data = { - " " - " # " - " ## " - " ### " - " ## ### " - " ##### " - " ### " - " # " - " " -}; - -static const char* s_submenu_arrow_bitmap_data = { - " " - " # " - " ## " - " ### " - " #### " - " ### " - " ## " - " # " - " " -}; - -static Gfx::CharacterBitmap* s_checked_bitmap; -static const int s_checked_bitmap_width = 9; -static const int s_checked_bitmap_height = 9; -static const int s_submenu_arrow_bitmap_width = 9; -static const int s_submenu_arrow_bitmap_height = 9; -static const int s_item_icon_width = 16; -static const int s_stripe_width = 23; - -int Menu::content_width() const -{ - int widest_text = 0; - int widest_shortcut = 0; - for (auto& item : m_items) { - if (item.type() != MenuItem::Text) - continue; - auto& use_font = item.is_default() ? Gfx::FontDatabase::default_bold_font() : font(); - int text_width = use_font.width(item.text()); - if (!item.shortcut_text().is_empty()) { - int shortcut_width = use_font.width(item.shortcut_text()); - widest_shortcut = max(shortcut_width, widest_shortcut); - } - widest_text = max(widest_text, text_width); - } - - int widest_item = widest_text + s_stripe_width; - if (widest_shortcut) - widest_item += padding_between_text_and_shortcut() + widest_shortcut; - - return max(widest_item, rect_in_menubar().width()) + horizontal_padding() + frame_thickness() * 2; -} - -void Menu::redraw() -{ - if (!menu_window()) - return; - draw(); - menu_window()->invalidate(); -} - -Window& Menu::ensure_menu_window() -{ - if (m_menu_window) - return *m_menu_window; - - int width = this->content_width(); - - Gfx::IntPoint next_item_location(frame_thickness(), frame_thickness()); - for (auto& item : m_items) { - int height = 0; - if (item.type() == MenuItem::Text) - height = item_height(); - else if (item.type() == MenuItem::Separator) - height = 8; - item.set_rect({ next_item_location, { width - frame_thickness() * 2, height } }); - next_item_location.move_by(0, height); - } - - int window_height_available = Screen::the().height() - MenuManager::the().menubar_rect().height() - frame_thickness() * 2; - int max_window_height = (window_height_available / item_height()) * item_height() + frame_thickness() * 2; - int content_height = m_items.is_empty() ? 0 : (m_items.last().rect().bottom() + 1) + frame_thickness(); - int window_height = min(max_window_height, content_height); - if (window_height < content_height) { - m_scrollable = true; - m_max_scroll_offset = item_count() - window_height / item_height() + 2; - } - - auto window = Window::construct(*this, WindowType::Menu); - window->set_rect(0, 0, width, window_height); - m_menu_window = move(window); - draw(); - - return *m_menu_window; -} - -int Menu::visible_item_count() const -{ - if (!is_scrollable()) - return m_items.size(); - ASSERT(m_menu_window); - // Make space for up/down arrow indicators - return m_menu_window->height() / item_height() - 2; -} - -void Menu::draw() -{ - auto palette = WindowManager::the().palette(); - m_theme_index_at_last_paint = MenuManager::the().theme_index(); - - ASSERT(menu_window()); - ASSERT(menu_window()->backing_store()); - Gfx::Painter painter(*menu_window()->backing_store()); - - Gfx::IntRect rect { {}, menu_window()->size() }; - Gfx::StylePainter::paint_window_frame(painter, rect, palette); - painter.fill_rect(rect.shrunken(6, 6), palette.menu_base()); - int width = this->content_width(); - - if (!s_checked_bitmap) - s_checked_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_checked_bitmap_data, s_checked_bitmap_width, s_checked_bitmap_height).leak_ref(); - - bool has_checkable_items = false; - bool has_items_with_icon = false; - for (auto& item : m_items) { - has_checkable_items = has_checkable_items | item.is_checkable(); - has_items_with_icon = has_items_with_icon | !!item.icon(); - } - - Gfx::IntRect stripe_rect { frame_thickness(), frame_thickness(), s_stripe_width, menu_window()->height() - frame_thickness() * 2 }; - painter.fill_rect(stripe_rect, palette.menu_stripe()); - painter.draw_line(stripe_rect.top_right(), stripe_rect.bottom_right(), palette.menu_stripe().darkened()); - - int visible_item_count = this->visible_item_count(); - - if (is_scrollable()) { - bool can_go_up = m_scroll_offset > 0; - bool can_go_down = m_scroll_offset < m_max_scroll_offset; - Gfx::IntRect up_indicator_rect { frame_thickness(), frame_thickness(), content_width(), item_height() }; - painter.draw_text(up_indicator_rect, "\xE2\xAC\x86", Gfx::TextAlignment::Center, can_go_up ? palette.menu_base_text() : palette.color(ColorRole::DisabledText)); - Gfx::IntRect down_indicator_rect { frame_thickness(), menu_window()->height() - item_height() - frame_thickness(), content_width(), item_height() }; - painter.draw_text(down_indicator_rect, "\xE2\xAC\x87", Gfx::TextAlignment::Center, can_go_down ? palette.menu_base_text() : palette.color(ColorRole::DisabledText)); - } - - for (int i = 0; i < visible_item_count; ++i) { - auto& item = m_items.at(m_scroll_offset + i); - if (item.type() == MenuItem::Text) { - Color text_color = palette.menu_base_text(); - if (&item == hovered_item() && item.is_enabled()) { - painter.fill_rect(item.rect(), palette.menu_selection()); - painter.draw_rect(item.rect(), palette.menu_selection().darkened()); - text_color = palette.menu_selection_text(); - } else if (!item.is_enabled()) { - text_color = Color::MidGray; - } - Gfx::IntRect text_rect = item.rect().translated(stripe_rect.width() + 6, 0); - if (item.is_checkable()) { - if (item.is_exclusive()) { - Gfx::IntRect radio_rect { item.rect().x() + 5, 0, 12, 12 }; - radio_rect.center_vertically_within(text_rect); - Gfx::StylePainter::paint_radio_button(painter, radio_rect, palette, item.is_checked(), false); - } else { - Gfx::IntRect checkmark_rect { item.rect().x() + 7, 0, s_checked_bitmap_width, s_checked_bitmap_height }; - checkmark_rect.center_vertically_within(text_rect); - Gfx::IntRect checkbox_rect = checkmark_rect.inflated(4, 4); - painter.fill_rect(checkbox_rect, palette.base()); - Gfx::StylePainter::paint_frame(painter, checkbox_rect, palette, Gfx::FrameShape::Container, Gfx::FrameShadow::Sunken, 2); - if (item.is_checked()) { - painter.draw_bitmap(checkmark_rect.location(), *s_checked_bitmap, palette.button_text()); - } - } - } else if (item.icon()) { - Gfx::IntRect icon_rect { item.rect().x() + 3, 0, s_item_icon_width, s_item_icon_width }; - icon_rect.center_vertically_within(text_rect); - - if (&item == hovered_item() && item.is_enabled()) { - auto shadow_color = palette.menu_selection().darkened(0.7f); - painter.blit_filtered(icon_rect.location().translated(1, 1), *item.icon(), item.icon()->rect(), [&shadow_color](auto) { - return shadow_color; - }); - icon_rect.move_by(-1, -1); - } - if (item.is_enabled()) - painter.blit(icon_rect.location(), *item.icon(), item.icon()->rect()); - else - painter.blit_disabled(icon_rect.location(), *item.icon(), item.icon()->rect(), palette); - } - auto& previous_font = painter.font(); - if (item.is_default()) - painter.set_font(Gfx::FontDatabase::default_bold_font()); - painter.draw_text(text_rect, item.text(), Gfx::TextAlignment::CenterLeft, text_color); - if (!item.shortcut_text().is_empty()) { - painter.draw_text(item.rect().translated(-right_padding(), 0), item.shortcut_text(), Gfx::TextAlignment::CenterRight, text_color); - } - painter.set_font(previous_font); - if (item.is_submenu()) { - static auto& submenu_arrow_bitmap = Gfx::CharacterBitmap::create_from_ascii(s_submenu_arrow_bitmap_data, s_submenu_arrow_bitmap_width, s_submenu_arrow_bitmap_height).leak_ref(); - Gfx::IntRect submenu_arrow_rect { - item.rect().right() - s_submenu_arrow_bitmap_width - 2, - 0, - s_submenu_arrow_bitmap_width, - s_submenu_arrow_bitmap_height - }; - submenu_arrow_rect.center_vertically_within(item.rect()); - painter.draw_bitmap(submenu_arrow_rect.location(), submenu_arrow_bitmap, text_color); - } - } else if (item.type() == MenuItem::Separator) { - Gfx::IntPoint p1(item.rect().translated(stripe_rect.width() + 4, 0).x(), item.rect().center().y() - 1); - Gfx::IntPoint p2(width - 7, item.rect().center().y() - 1); - painter.draw_line(p1, p2, palette.threed_shadow1()); - painter.draw_line(p1.translated(0, 1), p2.translated(0, 1), palette.threed_highlight()); - } - } -} - -MenuItem* Menu::hovered_item() const -{ - if (m_hovered_item_index == -1) - return nullptr; - return const_cast<MenuItem*>(&item(m_hovered_item_index)); -} - -void Menu::update_for_new_hovered_item(bool make_input) -{ - if (hovered_item() && hovered_item()->is_submenu()) { - ASSERT(menu_window()); - MenuManager::the().close_everyone_not_in_lineage(*hovered_item()->submenu()); - hovered_item()->submenu()->do_popup(hovered_item()->rect().top_right().translated(menu_window()->rect().location()), make_input); - } else { - MenuManager::the().close_everyone_not_in_lineage(*this); - ensure_menu_window().set_visible(true); - } - redraw(); -} - -void Menu::open_hovered_item() -{ - ASSERT(menu_window()); - ASSERT(menu_window()->is_visible()); - if (!hovered_item()) - return; - if (hovered_item()->is_enabled()) - did_activate(*hovered_item()); - clear_hovered_item(); -} - -void Menu::descend_into_submenu_at_hovered_item() -{ - ASSERT(hovered_item()); - auto submenu = hovered_item()->submenu(); - ASSERT(submenu); - MenuManager::the().open_menu(*submenu, false); - submenu->set_hovered_item(0); - ASSERT(submenu->hovered_item()->type() != MenuItem::Separator); -} - -void Menu::handle_mouse_move_event(const MouseEvent& mouse_event) -{ - ASSERT(menu_window()); - MenuManager::the().set_current_menu(this); - if (hovered_item() && hovered_item()->is_submenu()) { - - auto item = *hovered_item(); - auto submenu_top_left = item.rect().location() + Gfx::IntPoint { item.rect().width(), 0 }; - auto submenu_bottom_left = submenu_top_left + Gfx::IntPoint { 0, item.submenu()->menu_window()->height() }; - - auto safe_hover_triangle = Gfx::Triangle { m_last_position_in_hover, submenu_top_left, submenu_bottom_left }; - m_last_position_in_hover = mouse_event.position(); - - // Don't update the hovered item if mouse is moving towards a submenu - if (safe_hover_triangle.contains(mouse_event.position())) - return; - } - - int index = item_index_at(mouse_event.position()); - if (m_hovered_item_index == index) - return; - m_hovered_item_index = index; - - update_for_new_hovered_item(); - return; -} - -void Menu::event(Core::Event& event) -{ - if (event.type() == Event::MouseMove) { - handle_mouse_move_event(static_cast<const MouseEvent&>(event)); - return; - } - - if (event.type() == Event::MouseUp) { - open_hovered_item(); - return; - } - - if (event.type() == Event::MouseWheel && is_scrollable()) { - ASSERT(menu_window()); - auto& mouse_event = static_cast<const MouseEvent&>(event); - m_scroll_offset += mouse_event.wheel_delta(); - m_scroll_offset = clamp(m_scroll_offset, 0, m_max_scroll_offset); - - int index = item_index_at(mouse_event.position()); - if (m_hovered_item_index == index) - return; - - m_hovered_item_index = index; - update_for_new_hovered_item(); - return; - } - - if (event.type() == Event::KeyDown) { - auto key = static_cast<KeyEvent&>(event).key(); - - if (!(key == Key_Up || key == Key_Down || key == Key_Left || key == Key_Right || key == Key_Return)) - return; - - ASSERT(menu_window()); - ASSERT(menu_window()->is_visible()); - - // Default to the first item on key press if one has not been selected yet - if (!hovered_item()) { - m_hovered_item_index = 0; - update_for_new_hovered_item(key == Key_Right); - return; - } - - if (key == Key_Up) { - ASSERT(m_items.at(0).type() != MenuItem::Separator); - - if (is_scrollable() && m_hovered_item_index == 0) - return; - - auto original_index = m_hovered_item_index; - do { - if (m_hovered_item_index == 0) - m_hovered_item_index = m_items.size() - 1; - else - --m_hovered_item_index; - if (m_hovered_item_index == original_index) - return; - } while (hovered_item()->type() == MenuItem::Separator || !hovered_item()->is_enabled()); - - ASSERT(m_hovered_item_index >= 0 && m_hovered_item_index <= static_cast<int>(m_items.size()) - 1); - - if (is_scrollable() && m_hovered_item_index < m_scroll_offset) - --m_scroll_offset; - - update_for_new_hovered_item(); - return; - } - - if (key == Key_Down) { - ASSERT(m_items.at(0).type() != MenuItem::Separator); - - if (is_scrollable() && m_hovered_item_index == static_cast<int>(m_items.size()) - 1) - return; - - auto original_index = m_hovered_item_index; - do { - if (m_hovered_item_index == static_cast<int>(m_items.size()) - 1) - m_hovered_item_index = 0; - else - ++m_hovered_item_index; - if (m_hovered_item_index == original_index) - return; - } while (hovered_item()->type() == MenuItem::Separator || !hovered_item()->is_enabled()); - - ASSERT(m_hovered_item_index >= 0 && m_hovered_item_index <= static_cast<int>(m_items.size()) - 1); - - if (is_scrollable() && m_hovered_item_index >= (m_scroll_offset + visible_item_count())) - ++m_scroll_offset; - - update_for_new_hovered_item(); - return; - } - } - Core::Object::event(event); -} - -void Menu::clear_hovered_item() -{ - if (!hovered_item()) - return; - m_hovered_item_index = -1; - redraw(); -} - -void Menu::did_activate(MenuItem& item) -{ - if (item.type() == MenuItem::Type::Separator) - return; - - if (on_item_activation) - on_item_activation(item); - - MenuManager::the().close_bar(); - - if (m_client) - m_client->post_message(Messages::WindowClient::MenuItemActivated(m_menu_id, item.identifier())); -} - -bool Menu::activate_default() -{ - for (auto& item : m_items) { - if (item.type() == MenuItem::Type::Separator) - continue; - if (item.is_enabled() && item.is_default()) { - did_activate(item); - return true; - } - } - return false; -} - -MenuItem* Menu::item_with_identifier(unsigned identifier) -{ - for (auto& item : m_items) { - if (item.identifier() == identifier) - return &item; - } - return nullptr; -} - -int Menu::item_index_at(const Gfx::IntPoint& position) -{ - int i = 0; - for (auto& item : m_items) { - if (item.rect().contains(position)) - return i; - ++i; - } - return -1; -} - -void Menu::close() -{ - MenuManager::the().close_menu_and_descendants(*this); -} - -void Menu::redraw_if_theme_changed() -{ - if (m_theme_index_at_last_paint != MenuManager::the().theme_index()) - redraw(); -} - -void Menu::popup(const Gfx::IntPoint& position) -{ - do_popup(position, true); -} - -void Menu::do_popup(const Gfx::IntPoint& position, bool make_input) -{ - if (is_empty()) { - dbgln("Menu: Empty menu popup"); - return; - } - - auto& window = ensure_menu_window(); - redraw_if_theme_changed(); - - const int margin = 30; - Gfx::IntPoint adjusted_pos = position; - - if (adjusted_pos.x() + window.width() >= Screen::the().width() - margin) { - adjusted_pos = adjusted_pos.translated(-window.width(), 0); - } - if (adjusted_pos.y() + window.height() >= Screen::the().height() - margin) { - adjusted_pos = adjusted_pos.translated(0, -window.height()); - } - - if (adjusted_pos.y() < MenuManager::the().menubar_rect().height()) - adjusted_pos.set_y(MenuManager::the().menubar_rect().height()); - - window.move_to(adjusted_pos); - window.set_visible(true); - MenuManager::the().open_menu(*this, make_input); - WindowManager::the().did_popup_a_menu({}); -} - -bool Menu::is_menu_ancestor_of(const Menu& other) const -{ - for (auto& item : m_items) { - if (!item.is_submenu()) - continue; - auto& submenu = *item.submenu(); - if (&submenu == &other) - return true; - if (submenu.is_menu_ancestor_of(other)) - return true; - } - return false; -} - -} |