From fcf2ffa39c99f095c57389ded9504c2caf0511c9 Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@belledonne-communications.com>
Date: Tue, 19 Mar 2024 18:18:42 +0100
Subject: [PATCH] Added dialog asking whether to cancel the meeting or not when
 deleting it

---
 .../main/meetings/fragment/MeetingFragment.kt |  38 +-
 .../meetings/viewmodel/MeetingViewModel.kt    |  68 +-
 .../java/org/linphone/utils/DialogUtils.kt    |  17 +
 .../main/res/layout/dialog_cancel_meeting.xml | 103 +++
 app/src/main/res/layout/meeting_fragment.xml  | 607 +++++++++---------
 app/src/main/res/values-fr/strings.xml        |   4 +
 app/src/main/res/values/strings.xml           |   4 +
 7 files changed, 540 insertions(+), 301 deletions(-)
 create mode 100644 app/src/main/res/layout/dialog_cancel_meeting.xml

diff --git a/app/src/main/java/org/linphone/ui/main/meetings/fragment/MeetingFragment.kt b/app/src/main/java/org/linphone/ui/main/meetings/fragment/MeetingFragment.kt
index 78747ae95..bed84bc8e 100644
--- a/app/src/main/java/org/linphone/ui/main/meetings/fragment/MeetingFragment.kt
+++ b/app/src/main/java/org/linphone/ui/main/meetings/fragment/MeetingFragment.kt
@@ -43,7 +43,9 @@ import org.linphone.databinding.MeetingFragmentBinding
 import org.linphone.databinding.MeetingPopupMenuBinding
 import org.linphone.ui.main.MainActivity
 import org.linphone.ui.main.fragment.SlidingPaneChildFragment
+import org.linphone.ui.main.history.model.ConfirmationDialogModel
 import org.linphone.ui.main.meetings.viewmodel.MeetingViewModel
+import org.linphone.utils.DialogUtils
 import org.linphone.utils.Event
 
 @UiThread
@@ -153,6 +155,13 @@ class MeetingFragment : SlidingPaneChildFragment() {
                 goBack()
             }
         }
+
+        viewModel.conferenceCancelledEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                Log.i("$TAG Meeting has been cancelled successfully, deleting it")
+                viewModel.delete()
+            }
+        }
     }
 
     private fun showPopupMenu() {
@@ -170,7 +179,11 @@ class MeetingFragment : SlidingPaneChildFragment() {
         )
 
         popupView.setDeleteClickListener {
-            viewModel.delete()
+            if (viewModel.isEditable.value == true) {
+                showCancelMeetingDialog()
+            } else {
+                viewModel.delete()
+            }
             popupWindow.dismiss()
         }
 
@@ -224,4 +237,27 @@ class MeetingFragment : SlidingPaneChildFragment() {
             Log.e("$TAG No activity found to handle intent: $exception")
         }
     }
+
+    private fun showCancelMeetingDialog() {
+        Log.i("$TAG Meeting is editable, asking whether to cancel it or not before deleting it")
+
+        val model = ConfirmationDialogModel()
+        val dialog = DialogUtils.getCancelMeetingDialog(requireContext(), model)
+
+        model.dismissEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                viewModel.delete()
+                dialog.dismiss()
+            }
+        }
+
+        model.confirmEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                viewModel.cancel()
+                dialog.dismiss()
+            }
+        }
+
+        dialog.show()
+    }
 }
diff --git a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt
index 858d87045..a79e958b1 100644
--- a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt
@@ -27,7 +27,11 @@ import java.util.Locale
 import java.util.TimeZone
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.R
+import org.linphone.core.Address
+import org.linphone.core.ChatRoom
 import org.linphone.core.ConferenceInfo
+import org.linphone.core.ConferenceScheduler
+import org.linphone.core.ConferenceSchedulerListenerStub
 import org.linphone.core.Factory
 import org.linphone.core.Participant
 import org.linphone.core.tools.Log
@@ -66,14 +70,61 @@ class MeetingViewModel @UiThread constructor() : ViewModel() {
     val startTimeStamp = MutableLiveData<Long>()
     val endTimeStamp = MutableLiveData<Long>()
 
+    val operationInProgress = MutableLiveData<Boolean>()
+
+    val conferenceCancelledEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
     val conferenceInfoDeletedEvent: MutableLiveData<Event<Boolean>> by lazy {
         MutableLiveData<Event<Boolean>>()
     }
 
+    private val conferenceSchedulerListener = object : ConferenceSchedulerListenerStub() {
+        override fun onStateChanged(
+            conferenceScheduler: ConferenceScheduler,
+            state: ConferenceScheduler.State?
+        ) {
+            Log.i("$TAG Conference scheduler state is $state")
+            if (state == ConferenceScheduler.State.Ready) {
+                Log.i(
+                    "$TAG Conference ${conferenceScheduler.info?.subject} cancelled"
+                )
+                val chatRoomParams = coreContext.core.createDefaultChatRoomParams()
+                chatRoomParams.isGroupEnabled = false
+                chatRoomParams.backend = ChatRoom.Backend.FlexisipChat
+                chatRoomParams.isEncryptionEnabled = true
+                chatRoomParams.subject = "Meeting cancelled" // Won't be used
+                conferenceScheduler.sendInvitations(chatRoomParams) // Send cancel ICS
+
+                operationInProgress.postValue(false)
+                conferenceCancelledEvent.postValue(Event(true))
+            }
+        }
+
+        override fun onInvitationsSent(
+            conferenceScheduler: ConferenceScheduler,
+            failedInvitations: Array<out Address>?
+        ) {
+            if (failedInvitations?.isNotEmpty() == true) {
+                for (address in failedInvitations) {
+                    Log.e(
+                        "$TAG Conference cancelled ICS wasn't sent to participant ${address.asStringUriOnly()}"
+                    )
+                }
+            } else {
+                Log.i(
+                    "$TAG Conference cancelled ICS successfully sent to all participants"
+                )
+            }
+            conferenceScheduler.removeListener(this)
+        }
+    }
+
     private lateinit var conferenceInfo: ConferenceInfo
 
-    override fun onCleared() {
-        super.onCleared()
+    init {
+        operationInProgress.value = false
     }
 
     @UiThread
@@ -109,6 +160,19 @@ class MeetingViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    @UiThread
+    fun cancel() {
+        coreContext.postOnCoreThread { core ->
+            if (::conferenceInfo.isInitialized) {
+                Log.i("$TAG Cancelling conference information [$conferenceInfo]")
+                operationInProgress.postValue(true)
+                val conferenceScheduler = core.createConferenceScheduler()
+                conferenceScheduler.addListener(conferenceSchedulerListener)
+                conferenceScheduler.cancelConference(conferenceInfo)
+            }
+        }
+    }
+
     @WorkerThread
     private fun configureConferenceInfo() {
         if (::conferenceInfo.isInitialized) {
diff --git a/app/src/main/java/org/linphone/utils/DialogUtils.kt b/app/src/main/java/org/linphone/utils/DialogUtils.kt
index 002e48b16..4eba289db 100644
--- a/app/src/main/java/org/linphone/utils/DialogUtils.kt
+++ b/app/src/main/java/org/linphone/utils/DialogUtils.kt
@@ -36,6 +36,7 @@ import org.linphone.databinding.DialogAccountModesExplanationBinding
 import org.linphone.databinding.DialogAssistantAcceptConditionsAndPolicyBinding
 import org.linphone.databinding.DialogAssistantCreateAccountConfirmPhoneNumberBinding
 import org.linphone.databinding.DialogCancelContactChangesBinding
+import org.linphone.databinding.DialogCancelMeetingBinding
 import org.linphone.databinding.DialogConfirmZrtpSasBinding
 import org.linphone.databinding.DialogContactConfirmTrustCallBinding
 import org.linphone.databinding.DialogContactTrustProcessBinding
@@ -337,6 +338,22 @@ class DialogUtils {
             return getDialog(context, binding)
         }
 
+        @UiThread
+        fun getCancelMeetingDialog(
+            context: Context,
+            viewModel: ConfirmationDialogModel
+        ): Dialog {
+            val binding: DialogCancelMeetingBinding = DataBindingUtil.inflate(
+                LayoutInflater.from(context),
+                R.layout.dialog_cancel_meeting,
+                null,
+                false
+            )
+            binding.viewModel = viewModel
+
+            return getDialog(context, binding)
+        }
+
         @UiThread
         private fun getDialog(context: Context, binding: ViewDataBinding): Dialog {
             val dialog = Dialog(context, R.style.Theme_LinphoneDialog)
diff --git a/app/src/main/res/layout/dialog_cancel_meeting.xml b/app/src/main/res/layout/dialog_cancel_meeting.xml
new file mode 100644
index 000000000..9036c9aef
--- /dev/null
+++ b/app/src/main/res/layout/dialog_cancel_meeting.xml
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <data>
+        <import type="android.view.View" />
+        <import type="android.graphics.Typeface" />
+        <variable
+            name="viewModel"
+            type="org.linphone.ui.main.history.model.ConfirmationDialogModel" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:onClick="@{() -> viewModel.dismiss()}"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <ImageView
+            android:id="@+id/dialog_background"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginStart="12dp"
+            android:layout_marginEnd="12dp"
+            android:layout_marginBottom="2dp"
+            android:src="@drawable/shape_dialog_background"
+            app:layout_constraintWidth_max="@dimen/dialog_max_width"
+            app:layout_constraintBottom_toBottomOf="@id/anchor"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@id/title" />
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/section_header_style"
+            android:id="@+id/title"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="15dp"
+            android:paddingTop="@dimen/dialog_top_bottom_margin"
+            android:text="@string/meeting_schedule_cancel_dialog_title"
+            app:layout_constraintVertical_chainStyle="packed"
+            app:layout_constraintBottom_toTopOf="@id/message"
+            app:layout_constraintStart_toStartOf="@id/dialog_background"
+            app:layout_constraintEnd_toEndOf="@id/dialog_background"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style"
+            android:id="@+id/message"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="15dp"
+            android:layout_marginEnd="15dp"
+            android:layout_marginTop="10dp"
+            android:text="@string/meeting_schedule_cancel_dialog_message"
+            android:textSize="14sp"
+            app:layout_constraintBottom_toTopOf="@id/cancel"
+            app:layout_constraintStart_toStartOf="@id/dialog_background"
+            app:layout_constraintEnd_toEndOf="@id/dialog_background"
+            app:layout_constraintTop_toBottomOf="@id/title" />
+
+        <androidx.appcompat.widget.AppCompatTextView
+            android:onClick="@{() -> viewModel.dismiss()}"
+            style="@style/secondary_button_label_style"
+            android:id="@+id/cancel"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
+            android:layout_marginStart="15dp"
+            android:layout_marginEnd="15dp"
+            android:text="@string/dialog_no"
+            app:layout_constraintStart_toStartOf="@id/dialog_background"
+            app:layout_constraintEnd_toEndOf="@id/dialog_background"
+            app:layout_constraintTop_toBottomOf="@id/message"
+            app:layout_constraintBottom_toTopOf="@id/confirm"/>
+
+        <androidx.appcompat.widget.AppCompatTextView
+            android:onClick="@{() -> viewModel.confirm()}"
+            style="@style/primary_button_label_style"
+            android:id="@+id/confirm"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:layout_marginStart="15dp"
+            android:layout_marginEnd="15dp"
+            android:text="@string/dialog_yes"
+            app:layout_constraintStart_toStartOf="@id/dialog_background"
+            app:layout_constraintEnd_toEndOf="@id/dialog_background"
+            app:layout_constraintTop_toBottomOf="@id/cancel"
+            app:layout_constraintBottom_toTopOf="@id/anchor"/>
+
+        <View
+            android:id="@+id/anchor"
+            android:layout_width="wrap_content"
+            android:layout_height="@dimen/dialog_top_bottom_margin"
+            app:layout_constraintTop_toBottomOf="@id/confirm"
+            app:layout_constraintStart_toStartOf="@id/dialog_background"
+            app:layout_constraintEnd_toEndOf="@id/dialog_background"
+            app:layout_constraintBottom_toBottomOf="parent"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</layout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/meeting_fragment.xml b/app/src/main/res/layout/meeting_fragment.xml
index f240fefed..eb9dced55 100644
--- a/app/src/main/res/layout/meeting_fragment.xml
+++ b/app/src/main/res/layout/meeting_fragment.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:bind="http://schemas.android.com/tools">
 
     <data>
         <import type="android.view.View" />
@@ -24,329 +25,339 @@
             type="org.linphone.ui.main.meetings.viewmodel.MeetingViewModel" />
     </data>
 
-    <androidx.constraintlayout.widget.ConstraintLayout
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="?attr/color_main2_000">
+        android:layout_height="match_parent">
 
-        <ImageView
-            android:id="@+id/back"
-            android:onClick="@{backClickListener}"
-            android:layout_width="wrap_content"
-            android:layout_height="0dp"
-            android:adjustViewBounds="true"
-            android:padding="15dp"
-            android:src="@drawable/caret_left"
-            android:contentDescription="@string/content_description_go_back_icon"
-            android:visibility="@{viewModel.showBackButton ? View.VISIBLE : View.GONE}"
-            app:tint="?attr/color_main1_500"
-            app:layout_constraintBottom_toBottomOf="@id/title"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="@id/title" />
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="?attr/color_main2_000">
 
-        <androidx.appcompat.widget.AppCompatTextView
-            style="@style/main_page_title_style"
-            android:id="@+id/title"
-            android:layout_width="0dp"
-            android:layout_height="@dimen/top_bar_height"
-            android:layout_marginStart="10dp"
-            android:layout_marginEnd="10dp"
-            app:layout_constraintEnd_toStartOf="@id/edit"
-            app:layout_constraintStart_toEndOf="@id/back"
-            app:layout_constraintTop_toTopOf="parent"/>
+            <ImageView
+                android:id="@+id/back"
+                android:onClick="@{backClickListener}"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp"
+                android:adjustViewBounds="true"
+                android:padding="15dp"
+                android:src="@drawable/caret_left"
+                android:contentDescription="@string/content_description_go_back_icon"
+                android:visibility="@{viewModel.showBackButton ? View.VISIBLE : View.GONE}"
+                app:tint="?attr/color_main1_500"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="@id/title" />
 
-        <ImageView
-            android:id="@+id/edit"
-            android:onClick="@{editClickListener}"
-            android:layout_width="wrap_content"
-            android:layout_height="0dp"
-            android:padding="15dp"
-            android:adjustViewBounds="true"
-            android:src="@drawable/pencil_simple"
-            android:visibility="@{viewModel.isEditable ? View.VISIBLE : View.GONE}"
-            app:tint="@color/primary_color_selector"
-            app:layout_constraintStart_toEndOf="@id/title"
-            app:layout_constraintEnd_toStartOf="@id/menu"
-            app:layout_constraintBottom_toBottomOf="@id/title"
-            app:layout_constraintTop_toTopOf="@id/title" />
+            <androidx.appcompat.widget.AppCompatTextView
+                style="@style/main_page_title_style"
+                android:id="@+id/title"
+                android:layout_width="0dp"
+                android:layout_height="@dimen/top_bar_height"
+                android:layout_marginStart="10dp"
+                android:layout_marginEnd="10dp"
+                app:layout_constraintEnd_toStartOf="@id/edit"
+                app:layout_constraintStart_toEndOf="@id/back"
+                app:layout_constraintTop_toTopOf="parent"/>
 
-        <ImageView
-            android:id="@+id/menu"
-            android:onClick="@{menuClickListener}"
-            android:layout_width="wrap_content"
-            android:layout_height="0dp"
-            android:padding="15dp"
-            android:adjustViewBounds="true"
-            android:src="@drawable/dots_three_vertical"
-            app:tint="@color/primary_color_selector"
-            app:layout_constraintStart_toEndOf="@id/edit"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintBottom_toBottomOf="@id/title"
-            app:layout_constraintTop_toTopOf="@id/title" />
+            <ImageView
+                android:id="@+id/edit"
+                android:onClick="@{editClickListener}"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp"
+                android:padding="15dp"
+                android:adjustViewBounds="true"
+                android:src="@drawable/pencil_simple"
+                android:visibility="@{viewModel.isEditable ? View.VISIBLE : View.GONE}"
+                app:tint="@color/primary_color_selector"
+                app:layout_constraintStart_toEndOf="@id/title"
+                app:layout_constraintEnd_toStartOf="@id/menu"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintTop_toTopOf="@id/title" />
 
-        <ScrollView
-            android:id="@+id/scrollView"
-            android:layout_width="0dp"
-            android:layout_height="0dp"
-            android:fillViewport="true"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/title"
-            app:layout_constraintBottom_toTopOf="@id/separator_5">
+            <ImageView
+                android:id="@+id/menu"
+                android:onClick="@{menuClickListener}"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp"
+                android:padding="15dp"
+                android:adjustViewBounds="true"
+                android:src="@drawable/dots_three_vertical"
+                app:tint="@color/primary_color_selector"
+                app:layout_constraintStart_toEndOf="@id/edit"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintTop_toTopOf="@id/title" />
 
-            <androidx.constraintlayout.widget.ConstraintLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content">
+            <ScrollView
+                android:id="@+id/scrollView"
+                android:layout_width="0dp"
+                android:layout_height="0dp"
+                android:fillViewport="true"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/title"
+                app:layout_constraintBottom_toTopOf="@id/separator_5">
 
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style_800"
-                    android:id="@+id/subject"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@{viewModel.subject, default=`Broadcast about agility in software development`}"
-                    android:textSize="20sp"
-                    android:textColor="?attr/color_main2_600"
-                    android:maxLines="2"
-                    android:ellipsize="end"
-                    android:drawableStart="@{viewModel.isBroadcast ? @drawable/slideshow : @drawable/meeting, default=@drawable/meeting}"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="?attr/color_main2_600"
-                    android:background="@color/transparent_color"
-                    app:layout_constraintTop_toTopOf="parent"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content">
 
-                <View
-                    android:id="@+id/separator"
-                    android:layout_width="0dp"
-                    android:layout_height="1dp"
-                    android:layout_marginTop="16dp"
-                    android:background="?attr/color_main2_200"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/subject" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_800"
+                        android:id="@+id/subject"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@{viewModel.subject, default=`Broadcast about agility in software development`}"
+                        android:textSize="20sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:maxLines="2"
+                        android:ellipsize="end"
+                        android:drawableStart="@{viewModel.isBroadcast ? @drawable/slideshow : @drawable/meeting, default=@drawable/meeting}"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        android:background="@color/transparent_color"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/sip_uri"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@{viewModel.sipUri, default=`linphone.com/wjre.fr`}"
-                    android:textSize="14sp"
-                    android:textColor="?attr/color_main2_600"
-                    android:maxLines="1"
-                    android:ellipsize="end"
-                    android:drawableStart="@drawable/video_camera"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="?attr/color_main2_600"
-                    app:layout_constraintTop_toBottomOf="@id/separator"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toStartOf="@id/share" />
+                    <View
+                        android:id="@+id/separator"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        android:background="?attr/color_main2_200"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/subject" />
 
-                <ImageView
-                    android:id="@+id/share"
-                    android:onClick="@{shareClickListener}"
-                    android:layout_width="@dimen/icon_size"
-                    android:layout_height="@dimen/icon_size"
-                    android:layout_marginEnd="16dp"
-                    android:src="@drawable/share_network"
-                    app:layout_constraintTop_toTopOf="@id/sip_uri"
-                    app:layout_constraintBottom_toBottomOf="@id/sip_uri"
-                    app:layout_constraintStart_toEndOf="@id/sip_uri"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:tint="?attr/color_main2_600" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/sip_uri"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@{viewModel.sipUri, default=`linphone.com/wjre.fr`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:maxLines="1"
+                        android:ellipsize="end"
+                        android:drawableStart="@drawable/video_camera"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        app:layout_constraintTop_toBottomOf="@id/separator"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toStartOf="@id/share" />
 
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/date_time"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@{viewModel.dateTime, default=`October 11th, 2023 | 17:00 - 18:00`}"
-                    android:textSize="14sp"
-                    android:textColor="?attr/color_main2_600"
-                    android:maxLines="1"
-                    android:ellipsize="end"
-                    android:drawableStart="@drawable/clock"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="?attr/color_main2_600"
-                    app:layout_constraintTop_toBottomOf="@id/sip_uri"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <ImageView
+                        android:id="@+id/share"
+                        android:onClick="@{shareClickListener}"
+                        android:layout_width="@dimen/icon_size"
+                        android:layout_height="@dimen/icon_size"
+                        android:layout_marginEnd="16dp"
+                        android:src="@drawable/share_network"
+                        app:layout_constraintTop_toTopOf="@id/sip_uri"
+                        app:layout_constraintBottom_toBottomOf="@id/sip_uri"
+                        app:layout_constraintStart_toEndOf="@id/sip_uri"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:tint="?attr/color_main2_600" />
 
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/timezone"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@{viewModel.timezone, default=@string/meeting_schedule_timezone_title}"
-                    android:textSize="14sp"
-                    android:textColor="?attr/color_main2_600"
-                    android:maxLines="1"
-                    android:ellipsize="end"
-                    android:drawableStart="@drawable/globe_hemisphere_west"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="?attr/color_main2_600"
-                    app:layout_constraintTop_toBottomOf="@id/date_time"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/date_time"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@{viewModel.dateTime, default=`October 11th, 2023 | 17:00 - 18:00`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:maxLines="1"
+                        android:ellipsize="end"
+                        android:drawableStart="@drawable/clock"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        app:layout_constraintTop_toBottomOf="@id/sip_uri"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <View
-                    android:id="@+id/separator_2"
-                    android:layout_width="0dp"
-                    android:layout_height="1dp"
-                    android:layout_marginTop="16dp"
-                    android:background="?attr/color_main2_200"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/timezone" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/timezone"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@{viewModel.timezone, default=@string/meeting_schedule_timezone_title}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:maxLines="1"
+                        android:ellipsize="end"
+                        android:drawableStart="@drawable/globe_hemisphere_west"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        app:layout_constraintTop_toBottomOf="@id/date_time"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/description"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@{viewModel.description, default=`Lorem ipsum dolor sit amet`}"
-                    android:textSize="14sp"
-                    android:textColor="?attr/color_main2_600"
-                    android:maxLines="3"
-                    android:ellipsize="end"
-                    android:drawableStart="@drawable/file_text"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="?attr/color_main2_600"
-                    android:visibility="@{viewModel.description.length() > 0 ? View.VISIBLE : View.GONE}"
-                    app:layout_constraintTop_toBottomOf="@id/separator_2"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <View
+                        android:id="@+id/separator_2"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        android:background="?attr/color_main2_200"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/timezone" />
 
-                <View
-                    android:id="@+id/separator_3"
-                    android:layout_width="0dp"
-                    android:layout_height="1dp"
-                    android:layout_marginTop="16dp"
-                    android:background="?attr/color_main2_200"
-                    android:visibility="@{viewModel.description.length() > 0 ? View.VISIBLE : View.GONE}"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/description" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/description"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@{viewModel.description, default=`Lorem ipsum dolor sit amet`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:maxLines="3"
+                        android:ellipsize="end"
+                        android:drawableStart="@drawable/file_text"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        android:visibility="@{viewModel.description.length() > 0 ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintTop_toBottomOf="@id/separator_2"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <androidx.constraintlayout.widget.Barrier
-                    android:id="@+id/speakers_bottom_barrier"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    app:barrierDirection="bottom"
-                    app:constraint_referenced_ids="speakers, speakers_icon" />
+                    <View
+                        android:id="@+id/separator_3"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        android:background="?attr/color_main2_200"
+                        android:visibility="@{viewModel.description.length() > 0 ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/description" />
 
-                <ImageView
-                    android:id="@+id/speakers_icon"
-                    android:layout_width="@dimen/icon_size"
-                    android:layout_height="@dimen/icon_size"
-                    android:layout_marginTop="32dp"
-                    android:layout_marginStart="16dp"
-                    android:src="@drawable/user_square"
-                    android:visibility="@{viewModel.isBroadcast ? View.VISIBLE : View.GONE}"
-                    app:layout_constraintTop_toBottomOf="@id/separator_3"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:tint="?attr/color_main2_600" />
+                    <androidx.constraintlayout.widget.Barrier
+                        android:id="@+id/speakers_bottom_barrier"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        app:barrierDirection="bottom"
+                        app:constraint_referenced_ids="speakers, speakers_icon" />
 
-                <LinearLayout
-                    android:id="@+id/speakers"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:visibility="@{viewModel.isBroadcast ? View.VISIBLE : View.GONE}"
-                    android:orientation="vertical"
-                    entries="@{viewModel.speakers}"
-                    layout="@{@layout/meeting_participant_list_cell}"
-                    app:layout_constraintTop_toBottomOf="@id/separator_3"
-                    app:layout_constraintStart_toEndOf="@id/speakers_icon"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <ImageView
+                        android:id="@+id/speakers_icon"
+                        android:layout_width="@dimen/icon_size"
+                        android:layout_height="@dimen/icon_size"
+                        android:layout_marginTop="32dp"
+                        android:layout_marginStart="16dp"
+                        android:src="@drawable/user_square"
+                        android:visibility="@{viewModel.isBroadcast ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintTop_toBottomOf="@id/separator_3"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:tint="?attr/color_main2_600" />
 
-                <View
-                    android:id="@+id/separator_4"
-                    android:layout_width="0dp"
-                    android:layout_height="1dp"
-                    android:layout_marginTop="16dp"
-                    android:background="?attr/color_main2_200"
-                    android:visibility="@{viewModel.isBroadcast ? View.VISIBLE : View.GONE}"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/speakers_bottom_barrier" />
+                    <LinearLayout
+                        android:id="@+id/speakers"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:visibility="@{viewModel.isBroadcast ? View.VISIBLE : View.GONE}"
+                        android:orientation="vertical"
+                        entries="@{viewModel.speakers}"
+                        layout="@{@layout/meeting_participant_list_cell}"
+                        app:layout_constraintTop_toBottomOf="@id/separator_3"
+                        app:layout_constraintStart_toEndOf="@id/speakers_icon"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <ImageView
-                    android:id="@+id/participants_icon"
-                    android:layout_width="@dimen/icon_size"
-                    android:layout_height="@dimen/icon_size"
-                    android:layout_marginTop="32dp"
-                    android:layout_marginStart="16dp"
-                    android:src="@drawable/users"
-                    app:layout_constraintTop_toBottomOf="@id/separator_4"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:tint="?attr/color_main2_600"/>
+                    <View
+                        android:id="@+id/separator_4"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        android:background="?attr/color_main2_200"
+                        android:visibility="@{viewModel.isBroadcast ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/speakers_bottom_barrier" />
 
-                <LinearLayout
-                    android:id="@+id/participants"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:orientation="vertical"
-                    entries="@{viewModel.participants}"
-                    layout="@{@layout/meeting_participant_list_cell}"
-                    app:layout_constraintTop_toBottomOf="@id/separator_4"
-                    app:layout_constraintStart_toEndOf="@id/participants_icon"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <ImageView
+                        android:id="@+id/participants_icon"
+                        android:layout_width="@dimen/icon_size"
+                        android:layout_height="@dimen/icon_size"
+                        android:layout_marginTop="32dp"
+                        android:layout_marginStart="16dp"
+                        android:src="@drawable/users"
+                        app:layout_constraintTop_toBottomOf="@id/separator_4"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:tint="?attr/color_main2_600"/>
 
-            </androidx.constraintlayout.widget.ConstraintLayout>
+                    <LinearLayout
+                        android:id="@+id/participants"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:orientation="vertical"
+                        entries="@{viewModel.participants}"
+                        layout="@{@layout/meeting_participant_list_cell}"
+                        app:layout_constraintTop_toBottomOf="@id/separator_4"
+                        app:layout_constraintStart_toEndOf="@id/participants_icon"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-        </ScrollView>
+                </androidx.constraintlayout.widget.ConstraintLayout>
 
-        <View
-            android:id="@+id/separator_5"
-            android:layout_width="0dp"
-            android:layout_height="1dp"
-            android:background="?attr/color_main2_200"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/scrollView" />
+            </ScrollView>
 
-        <androidx.appcompat.widget.AppCompatTextView
-            style="@style/primary_button_label_style"
-            android:id="@+id/join"
-            android:onClick="@{joinClickListener}"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="16dp"
-            android:layout_marginStart="16dp"
-            android:layout_marginEnd="16dp"
-            android:layout_marginBottom="@dimen/screen_bottom_margin"
-            android:paddingStart="20dp"
-            android:paddingEnd="20dp"
-            android:text="@string/meeting_info_join_title"
-            app:layout_constraintWidth_max="@dimen/button_max_width"
-            app:layout_constraintVertical_bias="1"
-            app:layout_constraintTop_toBottomOf="@id/separator_5"
-            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toEndOf="parent" />
+            <View
+                android:id="@+id/separator_5"
+                android:layout_width="0dp"
+                android:layout_height="1dp"
+                android:background="?attr/color_main2_200"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/scrollView" />
 
-    </androidx.constraintlayout.widget.ConstraintLayout>
+            <androidx.appcompat.widget.AppCompatTextView
+                style="@style/primary_button_label_style"
+                android:id="@+id/join"
+                android:onClick="@{joinClickListener}"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:layout_marginStart="16dp"
+                android:layout_marginEnd="16dp"
+                android:layout_marginBottom="@dimen/screen_bottom_margin"
+                android:paddingStart="20dp"
+                android:paddingEnd="20dp"
+                android:text="@string/meeting_info_join_title"
+                app:layout_constraintWidth_max="@dimen/button_max_width"
+                app:layout_constraintVertical_bias="1"
+                app:layout_constraintTop_toBottomOf="@id/separator_5"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent" />
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+
+        <include
+            layout="@layout/operation_in_progress"
+            bind:visibility="@{viewModel.operationInProgress}" />
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
 
 </layout>
\ No newline at end of file
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 4d821fcff..54a6ae6a8 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -34,6 +34,8 @@
     <string name="dialog_close">Fermer</string>
     <string name="dialog_install">Installer</string>
     <string name="dialog_do_not_show_anymore">Ne plus me montrer ce message</string>
+    <string name="dialog_no">Non</string>
+    <string name="dialog_yes">Oui</string>
 
     <string name="notification_channel_call_name">&appName; notifications d\'appels en cours</string>
     <string name="notification_channel_incoming_call_name">&appName; notifications d\'appels entrants</string>
@@ -474,6 +476,8 @@
     <string name="meeting_schedule_description_title">Description</string>
     <string name="meeting_schedule_create_title">Créer</string>
     <string name="meeting_schedule_edit_title">Modifier la réunion</string>
+    <string name="meeting_schedule_cancel_dialog_title">Annuler la réunion?</string>
+    <string name="meeting_schedule_cancel_dialog_message">Voulez-vous annuler la réunion et envoyer une notification aux participants?</string>
 
     <string name="meeting_waiting_room_join">Rejoindre</string>
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 84e1b5e57..7874ea720 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -71,6 +71,8 @@
     <string name="dialog_close">Close</string>
     <string name="dialog_install">Install</string>
     <string name="dialog_do_not_show_anymore">Do not show this dialog anymore</string>
+    <string name="dialog_no">No</string>
+    <string name="dialog_yes">Yes</string>
 
     <!-- Related to Android notifications -->
     <string name="notification_channel_call_name">&appName; active calls notifications</string>
@@ -523,6 +525,8 @@
     <string name="meeting_schedule_description_title">Description</string>
     <string name="meeting_schedule_create_title">Create</string>
     <string name="meeting_schedule_edit_title">Edit meeting</string>
+    <string name="meeting_schedule_cancel_dialog_title">Cancel the meeting?</string>
+    <string name="meeting_schedule_cancel_dialog_message">Do you want to cancel the meeting and send a notification to all participants?</string>
 
     <string name="meeting_waiting_room_join">Join</string>