SettingsDialog: Display the user avatar as action icon if available.

The avatar image is fetched from the server async, thus connect a signal
from the account if the avatar changes.

Server feature https://github.com/owncloud/core/pull/26872 is needed.

src/gui/settingsdialog.cpp

@@ -196,8 +196,17 @@ void SettingsDialog::accountAdded(AccountState *s)
 
     bool brandingSingleAccount = !Theme::instance()->multiAccount();
 
-    auto accountAction = createColorAwareAction(QLatin1String(":/client/resources/account.png"),
+    QAction *accountAction;
-                                                brandingSingleAccount ? tr("Account") : s->account()->displayName());
+    QPixmap avatar = s->account()->avatar();
+    const QString actionText = brandingSingleAccount ? tr("Account") : s->account()->displayName();
+    if(avatar.isNull()) {
+        accountAction = createColorAwareAction(QLatin1String(":/client/resources/account.png"),
+                                                    actionText);
+    } else {
+        QIcon icon(avatar);
+        accountAction = createActionWithIcon(icon, actionText);
+    }
+
     if (!brandingSingleAccount) {
         accountAction->setToolTip(s->account()->displayName());
         accountAction->setIconText(s->shortDisplayNameForSettings(height * buttonSizeRatio));
@@ -207,14 +216,30 @@ void SettingsDialog::accountAdded(AccountState *s)
     _ui->stack->insertWidget(0 , accountSettings);
     _actionGroup->addAction(accountAction);
     _actionGroupWidgets.insert(accountAction, accountSettings);
+    _actionForAccount.insert(s->account().data(), accountAction);
 
     connect( accountSettings, SIGNAL(folderChanged()), _gui, SLOT(slotFoldersChanged()));
     connect( accountSettings, SIGNAL(openFolderAlias(const QString&)),
              _gui, SLOT(slotFolderOpenAction(QString)));
+    connect(s->account().data(), SIGNAL(accountChangedAvatar()), SLOT(slotAccountAvatarChanged()));
 
     slotRefreshActivity(s);
 }
 
+void SettingsDialog::slotAccountAvatarChanged()
+{
+    Account *account = static_cast<Account*>(sender());
+    if( account && _actionForAccount.contains(account)) {
+        QAction *action = _actionForAccount[account];
+        if( action ) {
+            QPixmap pix = account->avatar();
+            if( !pix.isNull() ) {
+                action->setIcon( QIcon(pix) );
+            }
+        }
+    }
+}
+
 void SettingsDialog::accountRemoved(AccountState *s)
 {
     for (auto it = _actionGroupWidgets.begin(); it != _actionGroupWidgets.end(); ++it) {
@@ -236,6 +261,9 @@ void SettingsDialog::accountRemoved(AccountState *s)
         }
     }
 
+    if( _actionForAccount.contains(s->account().data()) ) {
+        _actionForAccount.remove(s->account().data());
+    }
     _activitySettings->slotRemoveAccount(s);
 
     // Hide when the last account is deleted. We want to enter the same
@@ -306,14 +334,22 @@ public:
     }
 };
 
+QAction *SettingsDialog::createActionWithIcon(const QIcon& icon, const QString& text, const QString& iconPath)
+{
+    QAction *action = new ToolButtonAction(icon, text, this);
+    action->setCheckable(true);
+    if(!iconPath.isEmpty()) {
+        action->setProperty("iconPath", iconPath);
+    }
+    return action;
+
+}
+
 QAction *SettingsDialog::createColorAwareAction(const QString &iconPath, const QString &text)
 {
     // all buttons must have the same size in order to keep a good layout
     QIcon coloredIcon = createColorAwareIcon(iconPath);
-    QAction *action = new ToolButtonAction(coloredIcon, text, this);
+    return createActionWithIcon(coloredIcon, text, iconPath);
-    action->setCheckable(true);
-    action->setProperty("iconPath", iconPath);
-    return action;
 }
 
 void SettingsDialog::slotRefreshActivity( AccountState* accountState )

src/gui/settingsdialog.h

@@ -58,6 +58,7 @@ public slots:
     void showActivityPage();
     void slotSwitchPage(QAction *action);
     void slotRefreshActivity(AccountState *accountState );
+    void slotAccountAvatarChanged();
 
 protected:
     void reject() Q_DECL_OVERRIDE;
@@ -73,12 +74,18 @@ private:
 
     QIcon createColorAwareIcon(const QString &name);
     QAction *createColorAwareAction(const QString &iconName, const QString &fileName);
+    QAction *createActionWithIcon(const QIcon& icon, const QString& text, const QString& iconPath = QString());
+
     Ui::SettingsDialog * const _ui;
 
     QActionGroup* _actionGroup;
     // Maps the actions from the action group to the corresponding widgets
     QHash<QAction*, QWidget*> _actionGroupWidgets;
 
+    // Maps the action in the dialog to their according account. Needed in
+    // case the account avatar changes
+    QHash<Account*, QAction*> _actionForAccount;
+
     QToolBar* _toolBar;
 
     ActivitySettings *_activitySettings;