"View only" polls in the timeline (#1031)

* Handle poll events from the sdk

* Render started poll event in the timeline

* Create poll module

* Check poll kind before revealing the results

* Check if user has voted before revealing the results

* Add active poll previews

* Minor cleanup

* Update todos

* Fix CI

* Remove hardcoded string

* Update preview

* changelog file

* Update screenshots

* Use CommonPlurals

* Set poll root view as selectableGroup

* Improve poll result rendering

* Update screenshots

* Add missing showkase processor

* Update screenshots

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>

features/poll/impl/src/main/kotlin/io/element/android/features/poll/impl/DefaultPollEntryPoint.kt

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.poll.impl
+
+import com.bumble.appyx.core.modality.BuildContext
+import com.bumble.appyx.core.node.Node
+import com.bumble.appyx.core.plugin.Plugin
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.features.poll.api.PollEntryPoint
+import io.element.android.libraries.architecture.createNode
+import io.element.android.libraries.di.AppScope
+import javax.inject.Inject
+
+@ContributesBinding(AppScope::class)
+class DefaultPollEntryPoint @Inject constructor() : PollEntryPoint {
+
+    override fun nodeBuilder(parentNode: Node, buildContext: BuildContext): PollEntryPoint.NodeBuilder {
+        val plugins = ArrayList<Plugin>()
+
+        return object : PollEntryPoint.NodeBuilder {
+
+            override fun callback(callback: PollEntryPoint.Callback): PollEntryPoint.NodeBuilder {
+                plugins += callback
+                return this
+            }
+
+            override fun build(): Node {
+                return parentNode.createNode<PollFlowNode>(buildContext, plugins)
+            }
+        }
+    }
+}

features/poll/impl/src/main/kotlin/io/element/android/features/poll/impl/PollFlowNode.kt

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.poll.impl
+
+import android.os.Parcelable
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import com.bumble.appyx.core.composable.Children
+import com.bumble.appyx.core.modality.BuildContext
+import com.bumble.appyx.core.node.Node
+import com.bumble.appyx.core.plugin.Plugin
+import com.bumble.appyx.navmodel.backstack.BackStack
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedInject
+import io.element.android.anvilannotations.ContributesNode
+import io.element.android.libraries.architecture.BackstackNode
+import io.element.android.libraries.architecture.animation.rememberDefaultTransitionHandler
+import io.element.android.libraries.architecture.createNode
+import io.element.android.libraries.di.SessionScope
+import kotlinx.parcelize.Parcelize
+
+@ContributesNode(SessionScope::class)
+class PollFlowNode @AssistedInject constructor(
+    @Assisted buildContext: BuildContext,
+    @Assisted plugins: List<Plugin>,
+) : BackstackNode<PollFlowNode.NavTarget>(
+    backstack = BackStack(
+        initialElement = NavTarget.Root,
+        savedStateMap = buildContext.savedStateMap,
+    ),
+    buildContext = buildContext,
+    plugins = plugins,
+) {
+
+    sealed interface NavTarget : Parcelable {
+        @Parcelize
+        object Root : NavTarget
+    }
+
+    override fun resolve(navTarget: NavTarget, buildContext: BuildContext): Node {
+        return when (navTarget) {
+            NavTarget.Root -> {
+                createNode(buildContext)
+            }
+        }
+    }
+
+    @Composable
+    override fun View(modifier: Modifier) {
+        Children(
+            navModel = backstack,
+            modifier = modifier,
+            transitionHandler = rememberDefaultTransitionHandler(),
+        )
+    }
+}