From a2dd57ad097181a063805f715cd7ab8d1d763dcb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20Ku=CC=88hn?= <kontakt@philipp-kuehn.com>
Date: Mon, 22 Oct 2018 18:24:54 +0200
Subject: [PATCH] fix bubble menu

---
 .../Components/Routes/MenuBubble/index.vue    |  2 +-
 packages/tiptap/src/Components/MenuBubble.js  | 14 ++++
 packages/tiptap/src/utils/Editor.js           | 10 +++
 packages/tiptap/src/utils/MenuBubble.js       | 72 +++++++++++++++++++
 4 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100644 packages/tiptap/src/utils/MenuBubble.js

diff --git a/examples/Components/Routes/MenuBubble/index.vue b/examples/Components/Routes/MenuBubble/index.vue
index d2c36fb9..69a4fb25 100644
--- a/examples/Components/Routes/MenuBubble/index.vue
+++ b/examples/Components/Routes/MenuBubble/index.vue
@@ -1,6 +1,6 @@
 <template>
 	<div class="editor">
-		<menu-bubble class="menubar" :editor="editor">
+		<menu-bubble class="menububble" :editor="editor">
 			<template slot-scope="{ nodes, marks }">
 
 				<button
diff --git a/packages/tiptap/src/Components/MenuBubble.js b/packages/tiptap/src/Components/MenuBubble.js
index 6a6dd9b3..1899f4f1 100644
--- a/packages/tiptap/src/Components/MenuBubble.js
+++ b/packages/tiptap/src/Components/MenuBubble.js
@@ -1,3 +1,5 @@
+import MenuBubble from '../Utils/MenuBubble'
+
 export default {
 	props: {
 		editor: {
@@ -5,6 +7,18 @@ export default {
 			type: Object,
 		},
 	},
+	watch: {
+		editor: {
+			immediate: true,
+			handler(editor) {
+				if (editor) {
+					this.$nextTick(() => {
+						editor.registerPlugin(MenuBubble(this.$el))
+					})
+				}
+			},
+		}
+	},
 	render(createElement) {
 		if (this.editor) {
 			return createElement('div', this.$scopedSlots.default({
diff --git a/packages/tiptap/src/utils/Editor.js b/packages/tiptap/src/utils/Editor.js
index ff4623f8..95dd89d5 100644
--- a/packages/tiptap/src/utils/Editor.js
+++ b/packages/tiptap/src/utils/Editor.js
@@ -247,6 +247,16 @@ export default class Editor {
 		this.bus.$on(event, callback)
 	}
 
+	registerPlugin(plugin = null) {
+		if (plugin) {
+			this.plugins = this.plugins.concat([plugin])
+			this.state = this.state.reconfigure({
+				plugins: this.plugins,
+			})
+			this.view.updateState(this.state)
+		}
+	}
+
 	destroy() {
 		this.emit('destroy')
 
diff --git a/packages/tiptap/src/utils/MenuBubble.js b/packages/tiptap/src/utils/MenuBubble.js
new file mode 100644
index 00000000..4a158200
--- /dev/null
+++ b/packages/tiptap/src/utils/MenuBubble.js
@@ -0,0 +1,72 @@
+import { Plugin } from 'prosemirror-state'
+
+class Toolbar {
+
+	constructor({ element, editorView }) {
+		this.editorView = editorView
+		this.element = element
+		this.element.style.visibility = 'hidden'
+		this.element.style.opacity = 0
+
+		this.editorView.dom.addEventListener('blur', this.hide.bind(this))
+	}
+
+	update(view, lastState) {
+		const { state } = view
+
+		// Don't do anything if the document/selection didn't change
+		if (lastState && lastState.doc.eq(state.doc) && lastState.selection.eq(state.selection)) {
+			return
+		}
+
+		// Hide the tooltip if the selection is empty
+		if (state.selection.empty) {
+			this.hide()
+			return
+		}
+
+		// Otherwise, reposition it and update its content
+		this.show()
+		const { from, to } = state.selection
+
+		// These are in screen coordinates
+		const start = view.coordsAtPos(from)
+		const end = view.coordsAtPos(to)
+
+		// The box in which the tooltip is positioned, to use as base
+		const box = this.element.offsetParent.getBoundingClientRect()
+
+		// Find a center-ish x position from the selection endpoints (when
+		// crossing lines, end may be more to the left)
+		const left = Math.max((start.left + end.left) / 2, start.left + 3)
+		this.element.style.left = `${left - box.left}px`
+		this.element.style.bottom = `${box.bottom - start.top}px`
+	}
+
+	show() {
+		this.element.style.visibility = 'visible'
+		this.element.style.opacity = 1
+	}
+
+	hide(event) {
+		if (event && event.relatedTarget) {
+			return
+		}
+
+		this.element.style.visibility = 'hidden'
+		this.element.style.opacity = 0
+	}
+
+	destroy() {
+		this.editorView.dom.removeEventListener('blur', this.hide)
+	}
+
+}
+
+export default function (element) {
+	return new Plugin({
+		view(editorView) {
+			return new Toolbar({ editorView, element })
+		},
+	})
+}