LibGUI+Notification: Add mutable notifications

This commit puts all of the remaining pieces in place. This adds a
mechanism to update the text, title, and icon of an image. If an image
is not provided, the default ladybug will be shown.

2 files changed, 65 insertions, 3 deletions

diff --git a/Userland/Libraries/LibGUI/Notification.cpp b/Userland/Libraries/LibGUI/Notification.cpp
index b4ea45882f..d863309300 100644
--- a/Userland/Libraries/LibGUI/Notification.cpp
+++ b/Userland/Libraries/LibGUI/Notification.cpp
@@ -85,6 +85,52 @@ void Notification::close()
     m_showing = false;
     m_disposed = true;
 }
+
+bool Notification::update()
+{
+    VERIFY(m_showing);
+    VERIFY(!m_disposed);
+    if (!m_connection->is_connected()) {
+        m_showing = false;
+        m_disposed = true;
+        return false;
+    }
+
+    bool is_checked = false;
+
+    if (m_text_dirty || m_title_dirty) {
+        auto response = m_connection->send_sync<Messages::NotificationServer::UpdateNotificationText>(m_text, m_title);
+        m_text_dirty = false;
+        m_title_dirty = false;
+
+        is_checked = true;
+        if (!response->still_showing()) {
+            m_showing = false;
+            m_disposed = true;
+            return false;
+        }
+    }
+
+    if (m_icon_dirty) {
+        auto response = m_connection->send_sync<Messages::NotificationServer::UpdateNotificationIcon>(m_icon ? m_icon->to_shareable_bitmap() : Gfx::ShareableBitmap());
+        m_icon_dirty = false;
+
+        is_checked = true;
+        if (!response->still_showing()) {
+            m_showing = false;
+            m_disposed = true;
+            return false;
+        }
+    }
+
+    if (!is_checked) {
+        auto response = m_connection->send_sync<Messages::NotificationServer::IsShowing>();
+        m_showing = response->still_showing();
+        if (!m_showing) {
+            m_disposed = true;
+        }
+    }
+    return m_showing;
 }
 
 }
diff --git a/Userland/Libraries/LibGUI/Notification.h b/Userland/Libraries/LibGUI/Notification.h
index 445b856411..1dda17d757 100644
--- a/Userland/Libraries/LibGUI/Notification.h
+++ b/Userland/Libraries/LibGUI/Notification.h
@@ -40,23 +40,39 @@ public:
     virtual ~Notification() override;
 
     const String& text() const { return m_text; }
-    void set_text(const String& text) { m_text = text; }
+    void set_text(const String& text)
+    {
+        m_text_dirty = true;
+        m_text = text;
+    }
 
     const String& title() const { return m_title; }
-    void set_title(const String& title) { m_title = title; }
+    void set_title(const String& title)
+    {
+        m_title_dirty = true;
+        m_title = title;
+    }
 
     const Gfx::Bitmap* icon() const { return m_icon; }
-    void set_icon(const Gfx::Bitmap* icon) { m_icon = icon; }
+    void set_icon(const Gfx::Bitmap* icon)
+    {
+        m_icon_dirty = true;
+        m_icon = icon;
+    }
 
     void show();
+    bool update();
     void close();
 
 private:
     Notification();
 
     String m_title;
+    bool m_title_dirty;
     String m_text;
+    bool m_text_dirty;
     RefPtr<Gfx::Bitmap> m_icon;
+    bool m_icon_dirty;
 
     NonnullRefPtr<NotificationServerConnection> m_connection;
     bool m_showing { false };