Add workflow menu button to thread lists

Bug: twpowertools:74
Change-Id: I703950394d674c2084278bf9e876014d08fa5cfb
diff --git a/src/contentScripts/communityConsole/workflows/components/Overlay.vue b/src/contentScripts/communityConsole/workflows/components/Overlay.vue
new file mode 100644
index 0000000..304b362
--- /dev/null
+++ b/src/contentScripts/communityConsole/workflows/components/Overlay.vue
@@ -0,0 +1,29 @@
+<script>
+import WfMenu from './WfMenu.vue';
+
+export default {
+  components: {
+    WfMenu,
+  },
+  data() {
+    return {
+      shown: false,
+      position: [0, 0],
+      // TODO: Get real data.
+      workflows: [
+        {name: 'Move to accounts'},
+        {name: 'Mark as spam w/ message'},
+      ],
+    };
+  },
+  methods: {
+    startWorkflow(e) {
+      console.log(e);
+    }
+  },
+}
+</script>
+
+<template>
+  <wf-menu v-model="shown" :position="position" :workflows="workflows" @select="startWorkflow" />
+</template>
diff --git a/src/contentScripts/communityConsole/workflows/components/WfMenu.vue b/src/contentScripts/communityConsole/workflows/components/WfMenu.vue
new file mode 100644
index 0000000..88528ea
--- /dev/null
+++ b/src/contentScripts/communityConsole/workflows/components/WfMenu.vue
@@ -0,0 +1,39 @@
+<script>
+import {Corner} from '@material/menu-surface/constants.js';
+
+export default {
+  components: {},
+  props: {
+    modelValue: Boolean,
+    position: Array,
+    workflows: Array,
+  },
+  data() {
+    return {
+      corner: Corner.TOP_RIGHT,
+    };
+  },
+  emits: [
+    'update:modelValue',
+    'select',
+  ],
+}
+</script>
+
+<template>
+  <mcw-menu :model-value="modelValue" fixed :anchor-corner="corner"
+      :style="{ left: 'unset', right: 'calc(100% - ' + position[0] + 'px)', top: position[1] + 'px' }"
+      @update:model-value="$emit('update:modelValue', $event)" @select="$emit('select', $event)">
+    <mcw-list-item v-for="wf in workflows">{{ wf.name }}</mcw-list-item>
+  </mcw-menu>
+</template>
+
+<style scoped>
+.mdc-list-item {
+  /* These styles mimic the Community Console style. */
+  font-family: 'Google Sans Text', 'Noto', sans-serif;
+  font-size: 14px;
+  font-weight: 400;
+  height: 40px!important;
+}
+</style>