QmlUtils: Add more getters for C++ constants

New getters are:
 * applicationDisplayName()
 * applicationSourceCodeUlr()
 * invitiationUrl(jid)

src/Globals.h

@@ -39,6 +39,9 @@
 #define KAIDAN_RESOURCE_RANDOM_CHARS \
 	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
 
+#define INVITATION_URL "https://i.kaidan.im/#"
+#define APPLICATION_SOURCE_CODE_URL "https://invent.kde.org/kde/kaidan"
+
 // XML namespaces
 #define NS_SPOILERS "urn:xmpp:spoiler:0"
 #define NS_CARBONS "urn:xmpp:carbons:2"

src/QmlUtils.h

@@ -32,6 +32,8 @@
 #define QMLUTILS_H
 
 #include <QObject>
+#include <QUrl>
+
 #include "Globals.h"
 #include "Enums.h"
 
@@ -80,11 +82,35 @@ public:
 	/**
 	 * Returns a string of this build's Kaidan version
 	 */
-	Q_INVOKABLE static QString getVersionString()
+	Q_INVOKABLE static QString versionString()
 	{
 		return QStringLiteral(VERSION_STRING);
 	}
 
+	/**
+	 * Returns the name of this application as it should be displayed to the user
+	 */
+	Q_INVOKABLE static QString applicationDisplayName()
+	{
+		return QStringLiteral(APPLICATION_DISPLAY_NAME);
+	}
+
+	/**
+	 * Returns the URL where the source code of this application can be found
+	 */
+	Q_INVOKABLE static QUrl applicationSourceCodeUrl()
+	{
+		return {QStringLiteral(APPLICATION_SOURCE_CODE_URL)};
+	}
+
+	/**
+	 * Returns an invitation URL to the given JID
+	 */
+	Q_INVOKABLE static QUrl invitationUrl(const QString &jid)
+	{
+		return {QStringLiteral(INVITATION_URL) + jid};
+	}
+
 	/**
 	 * Returns a string without new lines, unneeded spaces, etc.
 	 *

src/qml/AboutDialog.qml

@@ -65,7 +65,7 @@ Controls.Dialog {
 			spacing: Kirigami.gridUnit * 0.6
 
 			Kirigami.Heading {
-				text: "Kaidan " + Utils.getVersionString()
+				text: Utils.applicationDisplayName() + " " + Utils.versionString()
 				textFormat: Text.PlainText
 				wrapMode: Text.WordWrap
 				Layout.fillWidth: true
@@ -99,7 +99,7 @@ Controls.Dialog {
 
 			Controls.ToolButton {
 				text: qsTr("View source code online")
-				onClicked: Qt.openUrlExternally("https://invent.kde.org/kde/kaidan")
+				onClicked: Qt.openUrlExternally(Utils.applicationSourceCodeUrl())
 				Layout.fillWidth: true
 				Layout.alignment: Qt.AlignHCenter
 			}

src/qml/GlobalDrawer.qml

@@ -34,7 +34,7 @@ import "settings"
 
 Kirigami.GlobalDrawer {
 	id: globalDrawer
-	title: "Kaidan"
+	title: Utils.applicationDisplayName()
 	titleIcon: Utils.getResourcePath("images/kaidan.svg")
 	bannerImageSource: Utils.getResourcePath("images/banner.png")
 
@@ -47,10 +47,8 @@ Kirigami.GlobalDrawer {
 			text: qsTr("Invite friends")
 			iconName: "mail-invitation"
 			onTriggered: {
-				Utils.copyToClipboard(
-					"https://i.kaidan.im/#" + kaidan.jid)
-				passiveNotification(
-					qsTr("Invitation link copied to clipboard"))
+				Utils.copyToClipboard(Utils.invitationUrl(kaidan.jid))
+				passiveNotification(qsTr("Invitation link copied to clipboard"))
 			}
 		},
 		Kirigami.Action {