Confirmation dialogs (#140)

supercedes #135

adapted from https://git.pleroma.social/pleroma/pleroma-fe/-/merge_requests/1431

Co-authored-by: Tusooa Zhu <tusooa@kazv.moe>
Co-authored-by: FloatingGhost <hannah@coffee-and-dreams.uk>
Reviewed-on: https://akkoma.dev/AkkomaGang/pleroma-fe/pulls/140

src/components/confirm_modal/confirm_modal.js

@@ -0,0 +1,37 @@
+import DialogModal from '../dialog_modal/dialog_modal.vue'
+
+/**
+ * This component emits the following events:
+ * cancelled, emitted when the action should not be performed;
+ * accepted, emitted when the action should be performed;
+ *
+ * The caller should close this dialog after receiving any of the two events.
+ */
+const ConfirmModal = {
+  components: {
+    DialogModal
+  },
+  props: {
+    title: {
+      type: String
+    },
+    cancelText: {
+      type: String
+    },
+    confirmText: {
+      type: String
+    }
+  },
+  computed: {
+  },
+  methods: {
+    onCancel () {
+      this.$emit('cancelled')
+    },
+    onAccept () {
+      this.$emit('accepted')
+    }
+  }
+}
+
+export default ConfirmModal

src/components/confirm_modal/confirm_modal.vue

@@ -0,0 +1,39 @@
+<template>
+  <dialog-modal
+    v-body-scroll-lock="true"
+    class="confirm-modal"
+    :on-cancel="onCancel"
+  >
+    <template #header>
+      <span v-text="title" />
+    </template>
+
+    <slot />
+
+    <template #footer>
+      <button
+        class="btn button-default"
+        @click.prevent="onCancel"
+        v-text="cancelText"
+      />
+      <button
+        class="btn button-default button-positive"
+        @click.prevent="onAccept"
+        v-text="confirmText"
+      />
+    </template>
+  </dialog-modal>
+</template>
+
+<style lang="scss" scoped>
+@import '../../_variables';
+
+.confirm-modal {
+  .button-positive {
+    border: 3px solid var(--accent, $fallback--link);
+    border-radius: var(--btnRadius, $fallback--btnRadius);
+  }
+}
+</style>
+
+<script src="./confirm_modal.js"></script>