Add support for local font access notifications

Accessing local fonts on the user's machine has been available in
Chromium since v103, via a (draft) API descrived here:
https://developer.chrome.com/docs/capabilities/web-apis/local-fonts
This change adds support for the relevant notification types,
effectively exposing the API to WebEngine applications.

Task-number: QTBUG-121320
Change-Id: I42c5261dc689c3d7bb4aa3c58c6300421220a36a
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

5 files changed, 18 insertions, 1 deletions

diff --git a/src/core/api/qwebenginepage.cpp b/src/core/api/qwebenginepage.cpp
index 0dcc56393..ac645c430 100644
--- a/src/core/api/qwebenginepage.cpp
+++ b/src/core/api/qwebenginepage.cpp
@@ -597,6 +597,8 @@ static QWebEnginePage::Feature toFeature(QtWebEngineCore::ProfileAdapter::Permis
         return QWebEnginePage::Geolocation;
     case QtWebEngineCore::ProfileAdapter::ClipboardReadWrite:
         return QWebEnginePage::ClipboardReadWrite;
+    case QtWebEngineCore::ProfileAdapter::LocalFontsPermission:
+        return QWebEnginePage::LocalFontsAccess;
     default:
         break;
     }
@@ -1756,6 +1758,9 @@ void QWebEnginePage::setFeaturePermission(const QUrl &securityOrigin, QWebEngine
             d->adapter->grantFeaturePermission(securityOrigin, ProfileAdapter::ClipboardReadWrite,
                                                ProfileAdapter::AskPermission);
             break;
+        case LocalFontsAccess:
+            d->adapter->grantFeaturePermission(securityOrigin, ProfileAdapter::LocalFontsPermission, ProfileAdapter::AskPermission);
+            break;
         }
         return;
     }
@@ -1797,6 +1802,9 @@ void QWebEnginePage::setFeaturePermission(const QUrl &securityOrigin, QWebEngine
             d->adapter->grantFeaturePermission(securityOrigin, ProfileAdapter::ClipboardReadWrite,
                                                ProfileAdapter::AllowedPermission);
             break;
+        case LocalFontsAccess:
+            d->adapter->grantFeaturePermission(securityOrigin, ProfileAdapter::LocalFontsPermission, ProfileAdapter::AllowedPermission);
+            break;
         }
     } else { // if (policy == PermissionDeniedByUser)
         switch (feature) {
@@ -1820,6 +1828,9 @@ void QWebEnginePage::setFeaturePermission(const QUrl &securityOrigin, QWebEngine
             d->adapter->grantFeaturePermission(securityOrigin, ProfileAdapter::ClipboardReadWrite,
                                                ProfileAdapter::DeniedPermission);
             break;
+        case LocalFontsAccess:
+            d->adapter->grantFeaturePermission(securityOrigin, ProfileAdapter::LocalFontsPermission, ProfileAdapter::DeniedPermission);
+            break;
         }
     }
 }
diff --git a/src/core/api/qwebenginepage.h b/src/core/api/qwebenginepage.h
index 2fc6e422d..621dacdc8 100644
--- a/src/core/api/qwebenginepage.h
+++ b/src/core/api/qwebenginepage.h
@@ -174,6 +174,7 @@ public:
         DesktopVideoCapture,
         DesktopAudioVideoCapture,
         ClipboardReadWrite,
+        LocalFontsAccess,
     };
     Q_ENUM(Feature)
 
diff --git a/src/core/doc/src/qwebenginepage_lgpl.qdoc b/src/core/doc/src/qwebenginepage_lgpl.qdoc
index 458359628..c2515cd13 100644
--- a/src/core/doc/src/qwebenginepage_lgpl.qdoc
+++ b/src/core/doc/src/qwebenginepage_lgpl.qdoc
@@ -300,6 +300,8 @@
             {JavascriptCanPaste} and \l{QWebEngineSettings::JavascriptCanAccessClipboard}
             {JavascriptCanAccessClipboard} settings are enabled, this permission will always be granted
             automatically and no feature requests will be made.
+    \value [since 6.8] LocalFontsAccess
+            Access to the fonts installed on the user's machine. Only available on desktop platforms.
 
     \sa featurePermissionRequested(), featurePermissionRequestCanceled(), setFeaturePermission(), PermissionPolicy
 
diff --git a/src/core/permission_manager_qt.cpp b/src/core/permission_manager_qt.cpp
index ef235e718..b6e727ef8 100644
--- a/src/core/permission_manager_qt.cpp
+++ b/src/core/permission_manager_qt.cpp
@@ -32,6 +32,8 @@ static ProfileAdapter::PermissionType toQt(blink::PermissionType type)
         return ProfileAdapter::ClipboardReadWrite;
     case blink::PermissionType::NOTIFICATIONS:
         return ProfileAdapter::NotificationPermission;
+    case blink::PermissionType::LOCAL_FONTS:
+        return ProfileAdapter::LocalFontsPermission;
     case blink::PermissionType::ACCESSIBILITY_EVENTS:
     case blink::PermissionType::CAMERA_PAN_TILT_ZOOM:
     case blink::PermissionType::WINDOW_MANAGEMENT:
@@ -52,7 +54,6 @@ static ProfileAdapter::PermissionType toQt(blink::PermissionType type)
     case blink::PermissionType::AR:
     case blink::PermissionType::VR:
     case blink::PermissionType::STORAGE_ACCESS_GRANT:
-    case blink::PermissionType::LOCAL_FONTS:
     case blink::PermissionType::DISPLAY_CAPTURE:
     case blink::PermissionType::TOP_LEVEL_STORAGE_ACCESS:
     case blink::PermissionType::NUM:
@@ -68,6 +69,7 @@ static bool canRequestPermissionFor(ProfileAdapter::PermissionType type)
     case ProfileAdapter::GeolocationPermission:
     case ProfileAdapter::NotificationPermission:
     case ProfileAdapter::ClipboardReadWrite:
+    case ProfileAdapter::LocalFontsPermission:
         return true;
     default:
         break;
diff --git a/src/core/profile_adapter.h b/src/core/profile_adapter.h
index 018ca5a00..4be0ea51e 100644
--- a/src/core/profile_adapter.h
+++ b/src/core/profile_adapter.h
@@ -134,6 +134,7 @@ public:
         AudioCapturePermission = 3,
         VideoCapturePermission = 4,
         ClipboardReadWrite = 5,
+        LocalFontsPermission = 6,
     };
 
     enum PermissionState {