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Hi everyone!

In this article I've tried to explain how to use Mac OS X Share API in your Qt Quick app. Share API was implemented in Mac OS 10.10 (Yosemite).

As you know all frameworks in OS X which you could use in your application created with Objective-C/C+. That's why you can't use framework in your C+ classes. You need to rename your .cpp file to .mm and then you can call Objective-C code. But sometimes you need to call methods with arguments with Objective-C. As you know in .h file you can't call Objective-C code. You must create Objective-C class which will call all needed methods to work with target framework.

Classes with Share API support.

First you need to create class with all methods in Objective-C/C++ to use Share API. To do this you need follow a few steps:
# Create a new class and rename .cpp file to .mm.
# Add .h file to .pro of your project in section "OBJECTIVE_HEADERS" and .mm to "OBJECTIVE_SOURCES".
# Change .h file content to this code:

#ifdef __cplusplus<br />extern &quot;C&amp;quot; {<br />#endif

#import &lt;Foundation/Foundation.h&amp;gt;<br />#import &lt;Social/Social.h&amp;gt;

/**

typedef QfSharePickerItemClicked
*

param sharingService Selected type of sharing.<br /> *

author Andrew Shapovelov*/
typedef void(

^{QfSharePickerItemClicked)(NSSharingService* sharingService);

/** class QfSharePicker *
brief Object to show share menu.
* author Andrew Shapovalov*/ 
interface QfSharePicker : NSObject

/** brief Create a new object. *
param view View on what will show share menu.
* param frame Rect to show share window. *
param datas Datas items to share.
* param block Block of code to select item. *
author Andrew Shapovalov*/
- (instancetype)initWithView:(NSView*)view frame:(NSRect)frame datasArray:(NSArray*)datas onItemClicked:(QfSharePickerItemClicked)block;

end
 #ifdef __cplusplus } #endif 

# Change .mm file content to this code:
 #import "qfsharepicker.h&quot; #include <QtCore&gt;
 /**
brief The private methods and properties of QfSharePicker class.
* author Andrew Shapovalov*/ 
interface QfSharePicker () <NSSharingServicePickerDelegate, NSSharingServiceDelegate>

/** Sharing service picker./
property (nonatomic, retain) NSSharingServicePicker''' picker;
 /** Block of code to select item.'''/ 
property (nonatomic, copy) QfSharePickerItemClicked onItemClicked;

end

 
implementation QfSharePicker

#pragma mark - Init methods

- (instancetype)initWithView:(NSView)view frame:(NSRect)frame datasArray:(NSArray*)datas onItemClicked:(QfSharePickerItemClicked)block
{
self = [super init];

if(self)
{
self.onItemClicked = block;
self.picker = [[NSSharingServicePicker alloc] initWithItems: datas];
self.picker.delegate = self;
[self.picker showRelativeToRect:frame ofView:view preferredEdge:NSMinXEdge];
}

return self;
}

#pragma mark - NSSharingServicePickerDelegate methods

- (void)sharingServicePicker:(NSSharingServicePicker )sharingServicePicker didChooseSharingService:(NSSharingService)service
{
if(self.picker == sharingServicePicker)
{
if(self.onItemClicked)
{
self.onItemClicked(service);
}
}
}

- (id <NSSharingServiceDelegate>)sharingServicePicker:(NSSharingServicePicker )sharingServicePicker delegateForSharingService:(NSSharingService)sharingService
{
Q_UNUSED(sharingService);

if(self.picker == sharingServicePicker)
{
}

return self;
}

#pragma mark - NSSharingServiceDelegate methods

- (void)sharingService:(NSSharingService )sharingService willShareItems:(NSArray)items
{
Q_UNUSED(sharingService);
Q_UNUSED(items);

//Some code here
}

- (void)sharingService:(NSSharingService )sharingService didFailToShareItems:(NSArray)items error:(NSError )error
{
Q_UNUSED(sharingService);
Q_UNUSED(items);
Q_UNUSED(error);

//Some code here
}

- (void)sharingService:(NSSharingService)sharingService didShareItems:(NSArray )items
{
Q_UNUSED(sharingService);
Q_UNUSED(items);

//Some code here
}

#pragma mark - Clear memory

- (void)dealloc
{
[super dealloc];

[self.picker autorelease];
[self.onItemClicked release];
self.onItemClicked = nil;
}

end 

p. More information you can find in official Apple "documentation":https://developer.apple.com/library/mac/DOCUMENTATION/AppKit/Reference/NSSharingServicePicker_Class/index.html. And you need to see information about class "NSSharingServicePickerDelegate":https://developer.apple.com/library/mac/DOCUMENTATION/AppKit/Reference/NSSharingServicePickerDelegate_Protocol/index.html#//apple_ref/occ/intf/NSSharingServicePickerDelegate.

h1. Create QtQuick Item to use Share API from App.

p. Second class which you need to create is a class to call from C+. This class will call Objective-C/C. To do this you need follow a few steps:
# Create a new C+ class.
# Rename .cpp file to .mm and added it to "OBJECTIVE_SOURCES".
# Change .h file content to code:
 #include <QtCore&gt; #include <QtQuick&gt;
 /'''*
class QfShareItem
* brief Manager to use share logic. *
author Andrew Shapovalov*/
class QfShareItem : public QQuickPaintedItem
{
Q_OBJECT
Q_PROPERTY(QString shareString READ getShareString WRITE setShareString NOTIFY shareStringChanged)
Q_PROPERTY(QUrl shareUrl READ getShareUrl WRITE setShareUrl NOTIFY shareUrlChanged)

private:
/** The share string info./
QString m_shareString;

/* The share link./
QUrl m_shareUrl;

/* brief Strip all HTML tags from string. *
param body The source string.
* return Plain text. *
author Andrew Shapovalov*/
QString stripHTMLTags(QString body);

/** brief Works with all applications events. *
param obj The object which call event.
* param event The event of call. *
author Andrew Shapovalov*/
bool eventFilter(QObject* obj, QEvent* event);

/** brief Share current content. *
author Andrew Shapovalov*/
void shareCurrentContent();

public:
/** brief Create a new object. *
param parent Parent object.
* author Andrew Shapovalov*/ explicit QfShareItem(QQuickPaintedItem '''parent = 0);
 //Others /'''*
brief Called when current object will redrawing.
* param painter The object for draw data. *
author Andrew Shapovalov*/
void paint(QPainter painter);

//Getters
/* brief Get share content string. *
return Share string content.
* author Andrew Shapovalov*/ inline QString getShareString(){return m_shareString;}
 /**
brief Get share url.
* return Share url. *
author Andrew Shapovalov*/
inline QUrl getShareUrl(){return m_shareUrl;}

//Setters
/** brief Set share content string. *
param value Share string content.
* author Andrew Shapovalov*/ inline void setShareString(QString value){m_shareString = value; emit shareStringChanged(m_shareString);}
 /**
brief Set share url.
* param value Share url. *
author Andrew Shapovalov*/
inline void setShareUrl(QUrl value){m_shareUrl = value; emit shareUrlChanged(m_shareUrl);}

/** brief Share content and url. *
param text The text of share.
* param url The url to share. *
author Andrew Shapovalov*/
Q_INVOKABLE void shareContent(QString text = QString(), QUrl url = QUrl());

signals:
/** brief Called when share content string was changed. *
param value Share string content.
* author Andrew Shapovalov*/ void shareStringChanged(QString value);
 /**
brief Called when share url was changed.
* param value Share url. *
author Andrew Shapovalov*/
void shareUrlChanged(QUrl value);

/** brief Called when user select share service. *
param serviceName The name of selected service.
* author Andrew Shapovalov*/ void selectedService(QString serviceName);
 public slots: }; 

# Change .mm file content to code:
 #include "qfshareitem.h&quot; #include "qfsharepicker.h&quot;
 QString QfShareItem::stripHTMLTags(QString body) { body.replace("<br&gt;",""); body.replace("</br&gt;",""); body.replace("</p&gt;",""); body.replace("</td&gt;",""); body.remove(QRegExp("&lt;head&amp;gt;(.''')&lt;/head&amp;gt;")); body.remove(QRegExp("&lt;form(.''')&lt;/form&gt;")); body.remove(QRegExp( "<(.)[>]'''>"));
 return body.trimmed(); }
 bool QfShareItem::eventFilter(QObject''' obj, QEvent* event) { if(obj == this) { if(parentItem()) { return QObject::eventFilter(parentItem(), event); } }

return QObject::eventFilter(obj, event); }

void QfShareItem::shareCurrentContent() { QQuickItem* parentItem = this->parentItem(); if(!m_shareString.isEmpty() && parentItem) { QRectF rect = parentItem->mapRectToItem(NULL, parentItem->boundingRect()); NSView* view = reinterpret_cast&lt;NSView *>(parentItem->window()<s>>winId()); NSRect frame = NSMakeRect(rect.x(), rect.y(), rect.width(), rect.height());
 m_shareString = m_shareString.replace("&lt;style type=quot;text/cssquot;&gt;a {color:#44a51c;text-decoration:none;}&lt;/style&amp;gt;", ""); QString content = stripHTMLTags(m_shareString).trimmed(); NSMutableArray* datas = [NSMutableArray arrayWithObject: content.toNSString()]; if(!m_shareUrl.isEmpty()) { NSURL* url = [NSURL URLWithString: m_shareUrl.toString().toNSString()]; if(url) { [datas addObject: url]; } } QfSharePicker* sharePicker = [[QfSharePicker alloc] initWithView:view frame:frame datasArray:datas onItemClicked:nil]; [sharePicker autorelease]; } }
 QfShareItem::QfShareItem(QQuickPaintedItem '''parent) : QQuickPaintedItem(parent) { m_shareString.clear(); m_shareUrl.clear();
 connect(this, &QQuickPaintedItem::parentChanged, [this](QQuickItem''' newParent){
 if(newParent) { newParent</s>>setFiltersChildMouseEvents(true); } }); this->installEventFilter(this);

setFlag(QQuickPaintedItem::ItemHasContents, true); setFlag(QQuickPaintedItem::ItemClipsChildrenToShape, true); setFlag(QQuickPaintedItem::ItemAcceptsDrops, true); setRenderTarget(QQuickPaintedItem::InvertedYFramebufferObject); }

void QfShareItem::paint(QPainter *painter) { try { Q_UNUSED(painter); } catch(std::exception&amp; exception) { qDebug()<<"exception: "<<exception.what(); } }

void QfShareItem::shareContent(QString text, QUrl url) { if(!text.isEmpty()) { m_shareString = text; }

if(!url.isEmpty()) { m_shareUrl = url; }

shareCurrentContent(); } 

# Register new type to use in QML.
 qmlRegisterType&lt;YourShareItem&gt;(uri, 1, 1, "YourShareItem&quot;); 

How to use in QML.
Import the new type to your QML file where you need to use share logic and add this code:
 Button { id: btnLink width: 22 height: 22

onClicked: { share.shareContent(); }

QfShareItem { id: share anchors.fill: btnLink shareUrl: userPanelView.shareUrl } } 

Summary}

How to use Share API in macOS and Qt Quick

Classes with Share API support.

How to use in QML.

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How to use Share API in macOS and Qt Quick

Classes with Share API support.

How to use in QML.

Summary

Navigation menu

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