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Source/Components/Prompt.h

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+/*
+  ==============================================================================
+
+    Prompt.h
+    Created: 15 May 2024 5:09:33pm
+    Author:  binya
+
+  ==============================================================================
+*/
+
+#pragma once
+
+#include <JuceHeader.h>
+
+#include "../Utilities/ComponentUtils.h"
+
+/** A prompt that can be opened and closed with a set of components to be kept "active" */
+class Prompt final : public CustomComponent
+{
+public:
+    Prompt()
+    {
+        closePrompt();
+    }
+
+    ~Prompt() override = default;
+
+    /** Opens a prompt with showComponents made visible with the prompt and highlightComponents placed in front 
+        of the prompt background (although their visibility is never changed). onClose is called when the prompt is closed.
+    */
+    void openPrompt(const juce::Array<Component*>& visibleComponents, const std::function<void()>& onClose = []() -> void {})
+    {
+        if (visible)
+            closePrompt();
+
+        onCloseCallback = onClose;
+        shownComponents = visibleComponents;
+
+        setVisible(true);
+        setInterceptsMouseClicks(true, true);
+        setWantsKeyboardFocus(true);
+        grabKeyboardFocus();
+        repaint();
+        visible = true;
+    }
+
+    /** Closes the prompt */
+    void closePrompt()
+    {
+        setVisible(false);
+        setInterceptsMouseClicks(false, false);
+        setWantsKeyboardFocus(false);
+        visible = false;
+
+        if (onCloseCallback)
+            onCloseCallback();
+
+        onCloseCallback = nullptr;
+    }
+
+    /** Returns whether the prompt is visible */
+    bool isPromptVisible() const { return visible; }
+
+private:
+    /** Paint in all but the shown components */
+    void paint(juce::Graphics& g) override
+    {
+        if (!visible)
+            return;
+
+        auto colors = getTheme();
+
+        for (auto* comp : shownComponents)
+            g.excludeClipRegion(comp->getBounds().translated(-getX(), -getY()));
+
+        g.fillAll(colors.prompt);
+
+        auto bounds = getLocalBounds().toFloat();
+        auto xBounds = bounds.removeFromTop(getWidth() * 0.035f).removeFromRight(getWidth() * 0.035f).reduced(getWidth() * 0.01f);
+        auto thickness = getWidth() * 0.003f;
+
+        g.setColour(colors.dark);
+        g.drawLine({ xBounds.getTopLeft(), xBounds.getBottomRight() }, thickness);
+        g.drawLine({ xBounds.getTopRight(), xBounds.getBottomLeft() }, thickness);
+    }
+
+    /** Close the prompt when escape or space is pressed */
+    bool keyPressed(const juce::KeyPress& key) override
+    {
+        if (visible)
+        {
+            if (key == juce::KeyPress::escapeKey || key == juce::KeyPress::spaceKey)
+            {
+                closePrompt();
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    bool hitTest(int x, int y) override
+    {
+        return visible && !std::ranges::any_of(shownComponents, [this, x, y](const Component* comp) {
+            return comp->getBounds().translated(-getX(), -getY()).contains(x, y);
+        });
+    }
+
+    void mouseDown(const juce::MouseEvent&) override
+    {
+        if (visible)
+            closePrompt();
+    }
+
+    //==============================================================================
+    bool visible{ false };
+
+    juce::Array<juce::Component*> shownComponents;
+    std::function<void()> onCloseCallback;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Prompt)
+};