Delegate permission prompt dialog formatting to embedders

components/embedder_traits/lib.rs

@@ -185,9 +185,8 @@ pub enum EmbedderMsg {
     GetSelectedBluetoothDevice(Vec<String>, IpcSender<Option<String>>),
     /// Open file dialog to select files. Set boolean flag to true allows to select multiple files.
     SelectFiles(Vec<FilterPattern>, bool, IpcSender<Option<Vec<String>>>),
-    /// Open yes/no message for user to allow permission specified by first String.
-    /// With dialog title specified by second String.
-    PromptPermission(String, String, IpcSender<PermissionRequest>),
+    /// Open interface to request permission specified by prompt.
+    PromptPermission(PermissionPrompt, IpcSender<PermissionRequest>),
     /// Request to present an IME to the user when an editable element is focused.
     ShowIME(InputMethodType),
     /// Request to hide the IME when the editable element is blurred.
@@ -304,7 +303,30 @@ pub enum MediaSessionEvent {
     SetPositionState(MediaPositionState),
 }
 
-// Status for prompting user for permission.
+/// Enum with variants that match the DOM PermissionName enum
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub enum PermissionName {
+    Geolocation,
+    Notifications,
+    Push,
+    Midi,
+    Camera,
+    Microphone,
+    Speaker,
+    DeviceInfo,
+    BackgroundSync,
+    Bluetooth,
+    PersistentStorage,
+}
+
+/// Information required to display a permission prompt
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub enum PermissionPrompt {
+    Insecure(PermissionName),
+    Request(PermissionName),
+}
+
+/// Status for prompting user for permission.
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub enum PermissionRequest {
     Granted,

components/script/dom/permissions.rs

@@ -19,7 +19,7 @@ use crate::dom::promise::Promise;
 use crate::realms::{AlreadyInRealm, InRealm};
 use crate::script_runtime::JSContext;
 use dom_struct::dom_struct;
-use embedder_traits::{EmbedderMsg, PermissionRequest};
+use embedder_traits::{self, EmbedderMsg, PermissionPrompt, PermissionRequest};
 use ipc_channel::ipc;
 use js::conversions::ConversionResult;
 use js::jsapi::JSObject;
@@ -27,11 +27,6 @@ use js::jsval::{ObjectValue, UndefinedValue};
 use servo_config::pref;
 use std::rc::Rc;
 
-const DIALOG_TITLE: &'static str = "Permission request dialog";
-const NONSECURE_DIALOG_MESSAGE: &'static str = "feature is only safe to use in secure context,\
- but servo can't guarantee\n that the current context is secure. Do you want to proceed and grant permission?";
-const REQUEST_DIALOG_MESSAGE: &'static str = "Do you want to grant permission for";
-
 pub trait PermissionAlgorithm {
     type Descriptor;
     type Status;
@@ -256,10 +251,11 @@ impl PermissionAlgorithm for Permissions {
             // Step 3.
             PermissionState::Prompt => {
                 let perm_name = status.get_query();
+                let prompt =
+                    PermissionPrompt::Request(embedder_traits::PermissionName::from(perm_name));
 
                 // https://w3c.github.io/permissions/#request-permission-to-use (Step 3 - 4)
                 let globalscope = GlobalScope::current().expect("No current global object");
-                let prompt = format!("{} {} ?", REQUEST_DIALOG_MESSAGE, perm_name.clone());
                 let state = prompt_user_from_embedder(prompt, &globalscope);
                 globalscope
                     .permission_state_invocation_results()
@@ -305,8 +301,10 @@ pub fn get_descriptor_permission_state(
                 .borrow_mut()
                 .remove(&permission_name.to_string());
 
-            let prompt = format!("The {} {}", permission_name, NONSECURE_DIALOG_MESSAGE);
-            prompt_user_from_embedder(prompt, &globalscope)
+            prompt_user_from_embedder(
+                PermissionPrompt::Insecure(embedder_traits::PermissionName::from(permission_name)),
+                &globalscope,
+            )
         }
     };
 
@@ -357,13 +355,9 @@ fn allowed_in_nonsecure_contexts(permission_name: &PermissionName) -> bool {
     }
 }
 
-fn prompt_user_from_embedder(prompt: String, gs: &GlobalScope) -> PermissionState {
+fn prompt_user_from_embedder(prompt: PermissionPrompt, gs: &GlobalScope) -> PermissionState {
     let (sender, receiver) = ipc::channel().expect("Failed to create IPC channel!");
-    gs.send_to_embedder(EmbedderMsg::PromptPermission(
-        prompt,
-        DIALOG_TITLE.to_string(),
-        sender,
-    ));
+    gs.send_to_embedder(EmbedderMsg::PromptPermission(prompt, sender));
 
     match receiver.recv() {
         Ok(PermissionRequest::Granted) => PermissionState::Granted,
@@ -377,3 +371,23 @@ fn prompt_user_from_embedder(prompt: String, gs: &GlobalScope) -> PermissionStat
         },
     }
 }
+
+impl From<PermissionName> for embedder_traits::PermissionName {
+    fn from(permission_name: PermissionName) -> Self {
+        match permission_name {
+            PermissionName::Geolocation => embedder_traits::PermissionName::Geolocation,
+            PermissionName::Notifications => embedder_traits::PermissionName::Notifications,
+            PermissionName::Push => embedder_traits::PermissionName::Push,
+            PermissionName::Midi => embedder_traits::PermissionName::Midi,
+            PermissionName::Camera => embedder_traits::PermissionName::Camera,
+            PermissionName::Microphone => embedder_traits::PermissionName::Microphone,
+            PermissionName::Speaker => embedder_traits::PermissionName::Speaker,
+            PermissionName::Device_info => embedder_traits::PermissionName::DeviceInfo,
+            PermissionName::Background_sync => embedder_traits::PermissionName::BackgroundSync,
+            PermissionName::Bluetooth => embedder_traits::PermissionName::Bluetooth,
+            PermissionName::Persistent_storage => {
+                embedder_traits::PermissionName::PersistentStorage
+            },
+        }
+    }
+}

ports/glutin/browser.rs

@@ -9,6 +9,7 @@ use keyboard_types::{Key, KeyboardEvent, Modifiers, ShortcutMatcher};
 use servo::compositing::windowing::{WebRenderDebugOption, WindowEvent};
 use servo::embedder_traits::{
     EmbedderMsg, FilterPattern, PermissionRequest, PromptDefinition, PromptOrigin, PromptResult,
+    PermissionPrompt,
 };
 use servo::msg::constellation_msg::TopLevelBrowsingContextId as BrowserId;
 use servo::msg::constellation_msg::TraversalDirection;
@@ -493,8 +494,8 @@ where
                         self.event_queue.push(WindowEvent::SendError(None, reason));
                     };
                 },
-                EmbedderMsg::PromptPermission(message, dialog_title, sender) => {
-                    let permission_state = prompt_user(&message, &dialog_title);
+                EmbedderMsg::PromptPermission(prompt, sender) => {
+                    let permission_state = prompt_user(prompt);
                     let _ = sender.send(permission_state);
                 }
                 EmbedderMsg::ShowIME(_kind) => {
@@ -520,13 +521,27 @@ where
 }
 
 #[cfg(target_os = "linux")]
-fn prompt_user(prompt: &str, dialog_title: &str) -> PermissionRequest {
+fn prompt_user(prompt: PermissionPrompt) -> PermissionRequest {
     if opts::get().headless {
         return PermissionRequest::Denied;
     }
+
+    let message = match prompt {
+        PermissionPrompt::Request(permission_name) => {
+            format!("Do you want to grant permission for {:?}?", permission_name)
+        },
+        PermissionPrompt::Insecure(permission_name) => {
+            format!(
+                "The {:?} feature is only safe to use in secure context, but servo can't guarantee\n\
+                that the current context is secure. Do you want to proceed and grant permission?",
+                permission_name
+            )
+        },
+    };
+
     match tinyfiledialogs::message_box_yes_no(
-        dialog_title,
-        prompt,
+        "Permission request dialog",
+        &message,
         MessageBoxIcon::Question,
         YesNo::No,
     ) {
@@ -536,7 +551,7 @@ fn prompt_user(prompt: &str, dialog_title: &str) -> PermissionRequest {
 }
 
 #[cfg(not(target_os = "linux"))]
-fn prompt_user(_prompt: &str, _dialog_title: &str) -> PermissionRequest {
+fn prompt_user(_prompt: PermissionPrompt) -> PermissionRequest {
     // TODO popup only supported on linux
     PermissionRequest::Denied
 }