1 files changed, 56 insertions, 0 deletions
diff --git a/app/assets/javascripts/vue_shared/components/sidebar/todo_toggle/todo_button.vue b/app/assets/javascripts/vue_shared/components/sidebar/todo_toggle/todo_button.vue
new file mode 100644
index 00000000000..e6229cf0a93
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/sidebar/todo_toggle/todo_button.vue
@@ -0,0 +1,56 @@
+<script>
+import { GlButton } from '@gitlab/ui';
+import { todoLabel } from './utils';
+
+export default {
+  components: {
+    GlButton,
+  },
+  props: {
+    isTodo: {
+      type: Boolean,
+      required: false,
+      default: true,
+    },
+  },
+  computed: {
+    buttonLabel() {
+      return todoLabel(this.isTodo);
+    },
+  },
+  methods: {
+    updateGlobalTodoCount(additionalTodoCount) {
+      const countContainer = document.querySelector('.js-todos-count');
+      if (countContainer === null) return;
+      const currentCount = parseInt(countContainer.innerText, 10);
+      const todoToggleEvent = new CustomEvent('todo:toggle', {
+        detail: {
+          count: Math.max(currentCount + additionalTodoCount, 0),
+        },
+      });
+
+      document.dispatchEvent(todoToggleEvent);
+    },
+    incrementGlobalTodoCount() {
+      this.updateGlobalTodoCount(1);
+    },
+    decrementGlobalTodoCount() {
+      this.updateGlobalTodoCount(-1);
+    },
+    onToggle(event) {
+      if (this.isTodo) {
+        this.decrementGlobalTodoCount();
+      } else {
+        this.incrementGlobalTodoCount();
+      }
+      this.$emit('click', event);
+    },
+  },
+};
+</script>
+
+<template>
+  <gl-button v-bind="$attrs" :aria-label="buttonLabel" @click="onToggle($event)">
+    {{ buttonLabel }}
+  </gl-button>
+</template>