User shares: Show avatars

[Sharing] Show placeholders for avatars

Just like on the web show placeholders for avatars in the sharing dialog

[Sharing] Show avatars!

[Sharing] Show same avatar placeholder for group/federated shares as on
web

1 files changed, 101 insertions, 0 deletions

diff --git a/src/gui/shareusergroupwidget.cpp b/src/gui/shareusergroupwidget.cpp
index 848ecfbfb..21dbb314c 100644
--- a/src/gui/shareusergroupwidget.cpp
+++ b/src/gui/shareusergroupwidget.cpp
@@ -26,6 +26,7 @@
 #include "thumbnailjob.h"
 #include "sharee.h"
 #include "sharemanager.h"
+#include "avatarjob.h"
 
 #include "QProgressIndicator.h"
 #include <QBuffer>
@@ -41,6 +42,9 @@
 #include <QAction>
 #include <QDesktopServices>
 #include <QMessageBox>
+#include <QCryptographicHash>
+#include <QColor>
+#include <QPainter>
 
 namespace OCC {
 
@@ -416,6 +420,103 @@ ShareUserLine::ShareUserLine(QSharedPointer<Share> share,
     if (!share->account()->capabilities().shareResharing()) {
         _ui->permissionShare->hide();
     }
+
+    loadAvatar();
+}
+
+void ShareUserLine::loadAvatar()
+{
+    /* Set the default place holder
+     * This is calculated the same way as on the webinterface
+     * So that the colors match
+     *
+     * This is done first so that we can directly show something
+     */
+
+    // Set size of the placeholder
+    _ui->avatar->setMinimumHeight(48);
+    _ui->avatar->setMinimumWidth(48);
+    _ui->avatar->setMaximumHeight(48);
+    _ui->avatar->setMaximumWidth(48);
+    _ui->avatar->setAlignment(Qt::AlignCenter);
+
+    /* Calculate the hue
+     * We could use more digits but we have the MSB now which
+     * is already plenty
+     */
+    const QString text = _share->getShareWith()->displayName();
+
+    QString seed = _share->getShareWith()->shareWith();
+    if (_share->getShareWith()->type() != Sharee::User) {
+        seed += QString(" %1").arg(_share->getShareWith()->type());
+    }
+
+    const QByteArray hash = QCryptographicHash::hash(seed.toUtf8(), QCryptographicHash::Md5);
+    int hue = ((double)hash.mid(0, 3).toHex().toInt(0, 16) / (double)0xffffff) * 255;
+
+    const QColor bg = QColor::fromHsl(hue, 230, 166);
+    const QString style = QString("* {\
+        color: #fff;\
+        background-color: %1;\
+        border-radius: 24px;\
+        font-size: 26px\
+    }").arg(bg.name());
+
+    // Set the style
+    _ui->avatar->setStyleSheet(style);
+
+    // Set the placeholder text
+    _ui->avatar->setText(text.at(0).toUpper());
+
+    // We can only fetch avatars for local users currently
+    if (_share->getShareWith()->type() == Sharee::User) {
+        AvatarJob2 *job = new AvatarJob2(_share->getShareWith()->shareWith(), 48, _share->account(), this);
+        connect(job, SIGNAL(avatarReady(QByteArray, QString)), SLOT(slotAvatarLoaded(QByteArray, QString)));
+        job->start();
+    }
+}
+
+void ShareUserLine::slotAvatarLoaded(const QByteArray &data, const QString &mimeType)
+{
+    QPixmap p;
+    bool valid = false;
+    if (mimeType == "image/png") {
+        valid = p.loadFromData(data, "PNG");
+    } else if (mimeType == "image/jpeg") {
+        valid = p.loadFromData(data, "JPG");
+    } else {
+        // Guess the filetype
+        valid = p.loadFromData(data);
+    }
+
+    // If the image was loaded succesfully set it!
+    if (valid) {
+
+        /*
+         * We want round avatars so create a new pixmap to draw
+         * the round avatar on and set a transparent background
+         */
+        QPixmap avatar(p.width(), p.height());
+        avatar.fill(QColor(0,0,0,0));
+
+        // Initialise our painer
+        QPainter painter(&avatar);
+        painter.setRenderHint(QPainter::Antialiasing);
+
+        // Set to draw only a cricle
+        QPainterPath path;
+        path.addEllipse(0,0,p.width(),p.height());
+        painter.setClipPath(path);
+
+        // Draw the round avatar
+        painter.drawPixmap(0,0,p.width(),p.width(),p);
+
+        // Set the avatar
+        _ui->avatar->setPixmap(avatar);
+        
+        // Remove the stylesheet
+        _ui->avatar->setStyleSheet("");
+    }
 }
 
 void ShareUserLine::on_deleteShareButton_clicked()