AAbstractTypeableView.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
//
// Created by alex2 on 5/23/2021.
//
 
 
#pragma once
 
#include "AAbstractTypeable.h"
#include <AUI/Platform/AWindow.h>

template<aui::derived_from<AView> Super>
class AAbstractTypeableView
       : public Super,
         public AAbstractTypeable,
         public std::conditional_t<aui::derived_from<Super, IFontView>, std::monostate, IFontView> /* implement
                                                                                                      IFontView if
                                                                                                      Super doesn't */{
public:
   AAbstractTypeableView() {
       AObject::connect(mBlinkTimer->fired, this, [&]() {
           if (this->hasFocus() && mCursorBlinkCount < 60) {
               mCursorBlinkVisible = !mCursorBlinkVisible;
               mCursorBlinkCount += 1;
               this->redraw();
           }
       });
   }
 

   auto text() const {
       return APropertyDef {
           this,
           &AAbstractTypeable::getText,
           &AAbstractTypeable::setText,
           textChanging,
       };
   }
 
   ~AAbstractTypeableView() override = default;
 
   void onKeyDown(AInput::Key key) override {
       Super::onKeyDown(key);
       if (key == AInput::ESCAPE) {
           AWindow::current()->setFocusedView(nullptr);
       }
       AAbstractTypeable::handleKey(key);
       if (key == AInput::Key::RETURN && !AInput::isKeyDown(AInput::LSHIFT) && !AInput::isKeyDown(AInput::RSHIFT)) {
           emit this->actionButtonPressed;
       }
   }
 
   void onKeyRepeat(AInput::Key key) override {
       Super::onKeyRepeat(key);
       AAbstractTypeable::handleKey(key);
   }
 
   void onFocusLost() override {
       Super::onFocusLost();
       if (mTextChangedFlag) {
           mTextChangedFlag = false;
           if (textChanged) {
               emit textChanged(text());
           }
       }
   }
 
   void onPointerPressed(const APointerPressedEvent& event) override {
       Super::onPointerPressed(event);
       ACursorSelectable::handleMousePressed(event);
       updateCursorBlinking();
   }
 
   void onPointerDoubleClicked(const APointerPressedEvent& event) override {
       Super::onPointerDoubleClicked(event);
       ACursorSelectable::handleMouseDoubleClicked(event);
       updateCursorBlinking();
   }
 
   void onPointerMove(glm::vec2 pos, const APointerMoveEvent& event) override {
       Super::onPointerMove(pos, event);
       ACursorSelectable::handleMouseMove(pos);
   }
 
   void onPointerReleased(const APointerReleasedEvent& event) override {
       Super::onPointerReleased(event);
       if (!event.triggerClick) return;
 
       if (event.pointerIndex != APointerIndex::button(AInput::RBUTTON)) {
           ACursorSelectable::handleMouseReleased(event);
       }
   }
 
   bool wantsTouchscreenKeyboard() override {
       return true;
   }
 
   bool handlesNonMouseNavigation() override {
       return true;
   }
 
   void onFocusAcquired() override {
       Super::onFocusAcquired();
       updateCursorBlinking();
   }
 
   void invalidateAllStyles() override {
       // order is intentional
       this->invalidateAllStylesFont();
       Super::invalidateAllStyles();
   }
 
   bool isLButtonPressed() override {
       return this->isPressed();
   }
 
   void drawCursor(IRenderer& renderer, glm::ivec2 position) {
       if (!this->hasFocus()) {
           return;
       }
       drawCursorImpl(renderer, position, this->getFontStyle().size);
   }
 
protected:
   AMenuModel composeContextMenu() override {
       return composeContextMenuImpl();
   }
 
   void commitStyle() override {
       Super::commitStyle();
       this->commitStyleFont();
   }
 
   int getVerticalAlignmentOffset() noexcept {
       return (glm::max)(0, int(glm::ceil((Super::getContentHeight() - this->getFontStyle().size) / 2.0)));
   }
 
   void cursorSelectableRedraw() override {
       this->redraw();
   }
 
   void onSelectionChanged() override {
       onCursorIndexChanged();
       if (selectionChanged) emit selectionChanged(selection());
   }
 
private:
   void emitTextChanged(const AString& text) override {
       emit textChanged(text);
   }
 
   void emitTextChanging(const AString& text) override {
       emit textChanging(text);
   }
 
   void emitActionButtonPressed() override {
       emit actionButtonPressed;
   }
 
   void typeableInvalidateFont() override {
       this->invalidateFont();
   }
};

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