JUCE/extras/Projucer/Source/ComponentEditor/Components/jucer_HyperlinkButtonHandler.h

/*
  ==============================================================================

   This file is part of the JUCE 6 technical preview.
   Copyright (c) 2020 - Raw Material Software Limited

   You may use this code under the terms of the GPL v3
   (see www.gnu.org/licenses).

   For this technical preview, this file is not subject to commercial licensing.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

#pragma once


//==============================================================================
class HyperlinkButtonHandler  : public ButtonHandler
{
public:
    HyperlinkButtonHandler()
        : ButtonHandler ("Hyperlink Button", "juce::HyperlinkButton", typeid (HyperlinkButton), 150, 24)
    {
        registerColour (HyperlinkButton::textColourId, "text", "textCol");
    }

    Component* createNewComponent (JucerDocument*) override
    {
        HyperlinkButton* hb = new HyperlinkButton ("new hyperlink", URL ("http://www.juce.com"));

        setNeedsButtonListener (hb, false);
        return hb;
    }

    void getEditableProperties (Component* component, JucerDocument& document,
                                Array<PropertyComponent*>& props, bool multipleSelected) override
    {
        ButtonHandler::getEditableProperties (component, document, props, multipleSelected);

        if (multipleSelected)
            return;

        if (auto* hb = dynamic_cast<HyperlinkButton*> (component))
            props.add (new HyperlinkURLProperty (hb, document));

        addColourProperties (component, document, props);
    }

    XmlElement* createXmlFor (Component* comp, const ComponentLayout* layout) override
    {
        HyperlinkButton* const hb = (HyperlinkButton*) comp;
        XmlElement* const e = ButtonHandler::createXmlFor (comp, layout);
        e->setAttribute ("url", hb->getURL().toString (false));
        return e;
    }

    bool restoreFromXml (const XmlElement& xml, Component* comp, const ComponentLayout* layout) override
    {
        HyperlinkButton* const hb = (HyperlinkButton*) comp;

        if (! ButtonHandler::restoreFromXml (xml, comp, layout))
            return false;

        hb->setURL (URL (xml.getStringAttribute ("url", hb->getURL().toString (false))));

        return true;
    }

    String getCreationParameters (GeneratedCode& code, Component* comp) override
    {
        HyperlinkButton* const hb = dynamic_cast<HyperlinkButton*> (comp);

        return quotedString (hb->getButtonText(), code.shouldUseTransMacro())
                + ",\nURL ("
                + quotedString (hb->getURL().toString (false), false)
                + ")";
    }

    void fillInCreationCode (GeneratedCode& code, Component* component, const String& memberVariableName) override
    {
        ButtonHandler::fillInCreationCode (code, component, memberVariableName);

        code.constructorCode << getColourIntialisationCode (component, memberVariableName)
                             << '\n';
    }

private:
    //==============================================================================
    class HyperlinkURLProperty  : public ComponentTextProperty <HyperlinkButton>
    {
    public:
        HyperlinkURLProperty (HyperlinkButton* comp, JucerDocument& doc)
            : ComponentTextProperty <HyperlinkButton> ("URL", 512, false, comp, doc)
        {}

        void setText (const String& newText) override
        {
            document.perform (new HyperlinkURLChangeAction (component, *document.getComponentLayout(), URL::createWithoutParsing (newText)),
                              "Change hyperlink URL");
        }

        String getText() const override
        {
            return component->getURL().toString (false);
        }

    private:
        class HyperlinkURLChangeAction  : public ComponentUndoableAction <HyperlinkButton>
        {
        public:
            HyperlinkURLChangeAction (HyperlinkButton* const comp, ComponentLayout& l, const URL& newState_)
                : ComponentUndoableAction <HyperlinkButton> (comp, l),
                  newState (newState_)
            {
                oldState = comp->getURL();
            }

            bool perform()
            {
                showCorrectTab();
                getComponent()->setURL (newState);
                changed();
                return true;
            }

            bool undo()
            {
                showCorrectTab();
                getComponent()->setURL (oldState);
                changed();
                return true;
            }

            URL newState, oldState;
        };
    };
};