messages: separate custom tab links from normal links

Some links in the `MessagesView` are part of Element X itself,
such as the help pages in `LearnMoreConfig` [1]. These links
should open in an "in-app" Chrome Custom Tab, because they are
basically part of the app.

Web links from chat messages, on the other hand, should open in
the user's preferred web browser as regular tabs.

Separate "regular" links from "custom tab" links with a new
parameter `onLinkClick(..., customTab)`. If true, the link
opens in a custom tab.

Links within `TimelineView` are always opened in a normal tab.

[1]: appconfig/src/main/kotlin/io/element/android/appconfig/LearnMoreConfig.kt

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesNode.kt

@@ -139,6 +139,7 @@ class MessagesNode @AssistedInject constructor(
         darkTheme: Boolean,
         url: String,
         eventSink: (TimelineEvents) -> Unit,
+        customTab: Boolean
     ) {
         when (val permalink = permalinkParser.parse(url)) {
             is PermalinkData.UserLink -> {
@@ -150,7 +151,11 @@ class MessagesNode @AssistedInject constructor(
                 handleRoomLinkClick(activity, permalink, eventSink)
             }
             is PermalinkData.FallbackLink -> {
-                activity.openUrlInExternalApp(url)
+                if (customTab) {
+                    activity.openUrlInChromeCustomTab(null, darkTheme, url)
+                } else {
+                    activity.openUrlInExternalApp(url)
+                }
             }
             is PermalinkData.RoomEmailInviteLink -> {
                 activity.openUrlInChromeCustomTab(null, darkTheme, url)
@@ -236,7 +241,7 @@ class MessagesNode @AssistedInject constructor(
                 onRoomDetailsClick = this::onRoomDetailsClick,
                 onEventContentClick = this::onEventClick,
                 onUserDataClick = this::onUserDataClick,
-                onLinkClick = { url -> onLinkClick(activity, isDark, url, state.timelineState.eventSink) },
+                onLinkClick = { url, customTab -> onLinkClick(activity, isDark, url, state.timelineState.eventSink, customTab) },
                 onSendLocationClick = this::onSendLocationClick,
                 onCreatePollClick = this::onCreatePollClick,
                 onJoinCallClick = this::onJoinCallClick,

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesView.kt

@@ -111,7 +111,7 @@ fun MessagesView(
     onRoomDetailsClick: () -> Unit,
     onEventContentClick: (event: TimelineItem.Event) -> Boolean,
     onUserDataClick: (UserId) -> Unit,
-    onLinkClick: (String) -> Unit,
+    onLinkClick: (String, Boolean) -> Unit,
     onSendLocationClick: () -> Unit,
     onCreatePollClick: () -> Unit,
     onJoinCallClick: () -> Unit,
@@ -273,7 +273,7 @@ private fun MessagesViewContent(
     state: MessagesState,
     onContentClick: (TimelineItem.Event) -> Unit,
     onUserDataClick: (UserId) -> Unit,
-    onLinkClick: (String) -> Unit,
+    onLinkClick: (String, Boolean) -> Unit,
     onReactionClick: (key: String, TimelineItem.Event) -> Unit,
     onReactionLongClick: (key: String, TimelineItem.Event) -> Unit,
     onMoreReactionsClick: (TimelineItem.Event) -> Unit,
@@ -347,7 +347,7 @@ private fun MessagesViewContent(
                         state = state.timelineState,
                         timelineProtectionState = state.timelineProtectionState,
                         onUserDataClick = onUserDataClick,
-                        onLinkClick = onLinkClick,
+                        onLinkClick = { url -> onLinkClick(url, false) },
                         onContentClick = onContentClick,
                         onMessageLongClick = onMessageLongClick,
                         onSwipeToReply = onSwipeToReply,
@@ -396,7 +396,7 @@ private fun MessagesViewContent(
 private fun MessagesViewComposerBottomSheetContents(
     subcomposing: Boolean,
     state: MessagesState,
-    onLinkClick: (String) -> Unit,
+    onLinkClick: (String, Boolean) -> Unit,
 ) {
     if (state.userEventPermissions.canSendMessage) {
         Column(modifier = Modifier.fillMaxWidth()) {
@@ -537,7 +537,7 @@ internal fun MessagesViewPreview(@PreviewParameter(MessagesStateProvider::class)
         onRoomDetailsClick = {},
         onEventContentClick = { false },
         onUserDataClick = {},
-        onLinkClick = {},
+        onLinkClick = { _, _ -> },
         onSendLocationClick = {},
         onCreatePollClick = {},
         onJoinCallClick = {},

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/crypto/identity/IdentityChangeStateView.kt

@@ -26,7 +26,7 @@ import io.element.android.libraries.ui.strings.CommonStrings
 @Composable
 fun IdentityChangeStateView(
     state: IdentityChangeState,
-    onLinkClick: (String) -> Unit,
+    onLinkClick: (String, Boolean) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     // Pick the first identity change to PinViolation
@@ -73,7 +73,7 @@ fun IdentityChangeStateView(
                     url = LinkAnnotation.Url(
                         url = LearnMoreConfig.IDENTITY_CHANGE_URL,
                         linkInteractionListener = {
-                            onLinkClick(LearnMoreConfig.IDENTITY_CHANGE_URL)
+                            onLinkClick(LearnMoreConfig.IDENTITY_CHANGE_URL, true)
                         }
                     ),
                     start = learnMoreStartIndex,
@@ -93,6 +93,6 @@ internal fun IdentityChangeStateViewPreview(
 ) = ElementPreview {
     IdentityChangeStateView(
         state = state,
-        onLinkClick = {},
+        onLinkClick = { _, _ -> },
     )
 }

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/crypto/identity/MessagesViewWithIdentityChangePreview.kt

@@ -35,7 +35,7 @@ internal fun MessagesViewWithIdentityChangePreview(
         onRoomDetailsClick = {},
         onEventContentClick = { false },
         onUserDataClick = {},
-        onLinkClick = {},
+        onLinkClick = { _, _ -> },
         onSendLocationClick = {},
         onCreatePollClick = {},
         onJoinCallClick = {},

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/MessagesViewTest.kt

@@ -58,6 +58,7 @@ import io.element.android.tests.testutils.EnsureCalledOnceWithParam
 import io.element.android.tests.testutils.EnsureNeverCalled
 import io.element.android.tests.testutils.EnsureNeverCalledWithParam
 import io.element.android.tests.testutils.EnsureNeverCalledWithParamAndResult
+import io.element.android.tests.testutils.EnsureNeverCalledWithTwoParams
 import io.element.android.tests.testutils.EventsRecorder
 import io.element.android.tests.testutils.clickOn
 import io.element.android.tests.testutils.ensureCalledOnce
@@ -514,7 +515,7 @@ private fun <R : TestRule> AndroidComposeTestRule<R, ComponentActivity>.setMessa
     onRoomDetailsClick: () -> Unit = EnsureNeverCalled(),
     onEventClick: (event: TimelineItem.Event) -> Boolean = EnsureNeverCalledWithParamAndResult(),
     onUserDataClick: (UserId) -> Unit = EnsureNeverCalledWithParam(),
-    onLinkClick: (String) -> Unit = EnsureNeverCalledWithParam(),
+    onLinkClick: (String, Boolean) -> Unit = EnsureNeverCalledWithTwoParams(),
     onSendLocationClick: () -> Unit = EnsureNeverCalled(),
     onCreatePollClick: () -> Unit = EnsureNeverCalled(),
     onJoinCallClick: () -> Unit = EnsureNeverCalled(),