From a2d5eef6b2ee264f17af50353f298af99ecac4f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20Ku=CC=88hn?= <kontakt@philipp-kuehn.com>
Date: Thu, 21 Jan 2021 12:13:20 +0100
Subject: [PATCH] add commands experiment

---
 .../Experiments/Commands/CommandsList.vue     | 112 ++++++++++++++
 .../demos/Experiments/Commands/commands.js    |  25 +++
 docs/src/demos/Experiments/Commands/index.vue | 145 ++++++++++++++++++
 docs/src/docPages/api/commands.md             |   1 +
 docs/src/docPages/experiments.md              |   1 +
 docs/src/docPages/experiments/commands.md     |   5 +
 packages/core/src/commands/deleteRange.ts     |  14 ++
 packages/core/src/extensions/commands.ts      |   2 +
 8 files changed, 305 insertions(+)
 create mode 100644 docs/src/demos/Experiments/Commands/CommandsList.vue
 create mode 100644 docs/src/demos/Experiments/Commands/commands.js
 create mode 100644 docs/src/demos/Experiments/Commands/index.vue
 create mode 100644 docs/src/docPages/experiments/commands.md
 create mode 100644 packages/core/src/commands/deleteRange.ts

diff --git a/docs/src/demos/Experiments/Commands/CommandsList.vue b/docs/src/demos/Experiments/Commands/CommandsList.vue
new file mode 100644
index 00000000..3c72c13f
--- /dev/null
+++ b/docs/src/demos/Experiments/Commands/CommandsList.vue
@@ -0,0 +1,112 @@
+<template>
+  <div class="items">
+    <button
+      class="item"
+      :class="{ 'is-selected': index === selectedIndex }"
+      v-for="(item, index) in items"
+      :key="index"
+      @click="selectItem(index)"
+    >
+      {{ item.title }}
+    </button>
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    items: {
+      type: Array,
+      required: true,
+    },
+
+    command: {
+      type: Function,
+      required: true,
+    },
+  },
+
+  data() {
+    return {
+      selectedIndex: 0,
+    }
+  },
+
+  watch: {
+    items() {
+      this.selectedIndex = 0
+    },
+  },
+
+  methods: {
+    onKeyDown({ event }) {
+      if (event.key === 'ArrowUp') {
+        this.upHandler()
+        return true
+      }
+
+      if (event.key === 'ArrowDown') {
+        this.downHandler()
+        return true
+      }
+
+      if (event.key === 'Enter') {
+        this.enterHandler()
+        return true
+      }
+
+      return false
+    },
+
+    upHandler() {
+      this.selectedIndex = ((this.selectedIndex + this.items.length) - 1) % this.items.length
+    },
+
+    downHandler() {
+      this.selectedIndex = (this.selectedIndex + 1) % this.items.length
+    },
+
+    enterHandler() {
+      this.selectItem(this.selectedIndex)
+    },
+
+    selectItem(index) {
+      const item = this.items[index]
+
+      if (item) {
+        this.command(item)
+      }
+    },
+  },
+}
+</script>
+
+<style lang="scss" scoped>
+.items {
+  position: relative;
+  border-radius: 0.25rem;
+  background: white;
+  color: rgba(black, 0.8);
+  overflow: hidden;
+  font-size: 0.9rem;
+  box-shadow:
+    0 0 0 1px rgba(0, 0, 0, 0.1),
+    0px 10px 20px rgba(0, 0, 0, 0.1),
+  ;
+}
+
+.item {
+  display: block;
+  width: 100%;
+  text-align: left;
+  background: transparent;
+  border: none;
+  padding: 0.2rem 0.5rem;
+
+  &.is-selected,
+  &:hover {
+    color: #A975FF;
+    background: rgba(#A975FF, 0.1);
+  }
+}
+</style>
diff --git a/docs/src/demos/Experiments/Commands/commands.js b/docs/src/demos/Experiments/Commands/commands.js
new file mode 100644
index 00000000..3bf67dff
--- /dev/null
+++ b/docs/src/demos/Experiments/Commands/commands.js
@@ -0,0 +1,25 @@
+import { Extension } from '@tiptap/core'
+import Suggestion from '@tiptap/suggestion'
+
+export default Extension.create({
+  name: 'mention',
+
+  defaultOptions: {
+    suggestion: {
+      char: '/',
+      startOfLine: true,
+      command: ({ editor, range, attributes }) => {
+        attributes.command({ editor, range })
+      },
+    },
+  },
+
+  addProseMirrorPlugins() {
+    return [
+      Suggestion({
+        editor: this.editor,
+        ...this.options.suggestion,
+      }),
+    ]
+  },
+})
diff --git a/docs/src/demos/Experiments/Commands/index.vue b/docs/src/demos/Experiments/Commands/index.vue
new file mode 100644
index 00000000..57a7da2b
--- /dev/null
+++ b/docs/src/demos/Experiments/Commands/index.vue
@@ -0,0 +1,145 @@
+<template>
+  <div v-if="editor">
+    <editor-content :editor="editor" />
+  </div>
+</template>
+
+<script>
+import tippy from 'tippy.js'
+import {
+  Editor, EditorContent, defaultExtensions, VueRenderer,
+} from '@tiptap/vue-starter-kit'
+import Commands from './commands'
+import CommandsList from './CommandsList'
+
+export default {
+  components: {
+    EditorContent,
+  },
+
+  data() {
+    return {
+      editor: null,
+    }
+  },
+
+  mounted() {
+    this.editor = new Editor({
+      extensions: [
+        ...defaultExtensions(),
+        Commands.configure({
+          suggestion: {
+            items: query => {
+              return [
+                {
+                  title: 'H1',
+                  command: ({ editor, range }) => {
+                    editor
+                      .chain()
+                      .focus()
+                      .deleteRange(range)
+                      .setNode('heading', { level: 1 })
+                      .run()
+                  },
+                },
+                {
+                  title: 'H2',
+                  command: ({ editor, range }) => {
+                    editor
+                      .chain()
+                      .focus()
+                      .deleteRange(range)
+                      .setNode('heading', { level: 2 })
+                      .run()
+                  },
+                },
+                {
+                  title: 'bold',
+                  command: ({ editor, range }) => {
+                    editor
+                      .chain()
+                      .focus()
+                      .deleteRange(range)
+                      .setMark('bold')
+                      .run()
+                  },
+                },
+                {
+                  title: 'italic',
+                  command: ({ editor, range }) => {
+                    editor
+                      .chain()
+                      .focus()
+                      .deleteRange(range)
+                      .setMark('italic')
+                      .run()
+                  },
+                },
+              ].filter(item => item.title.toLowerCase().startsWith(query.toLowerCase())).slice(0, 10)
+            },
+            render: () => {
+              let component
+              let popup
+
+              return {
+                onStart: props => {
+                  component = new VueRenderer(CommandsList, {
+                    parent: this,
+                    propsData: props,
+                  })
+
+                  popup = tippy('body', {
+                    getReferenceClientRect: props.clientRect,
+                    appendTo: () => document.body,
+                    content: component.element,
+                    showOnCreate: true,
+                    interactive: true,
+                    trigger: 'manual',
+                    placement: 'bottom-start',
+                  })
+                },
+                onUpdate(props) {
+                  component.updateProps(props)
+
+                  popup[0].setProps({
+                    getReferenceClientRect: props.clientRect,
+                  })
+                },
+                onKeyDown(props) {
+                  return component.vm.onKeyDown(props)
+                },
+                onExit() {
+                  popup[0].destroy()
+                  component.destroy()
+                },
+              }
+            },
+          },
+        }),
+      ],
+      content: `
+        <p>Text</p>
+      `,
+    })
+  },
+
+  beforeDestroy() {
+    this.editor.destroy()
+  },
+}
+</script>
+
+<style lang="scss">
+.ProseMirror {
+  > * + * {
+    margin-top: 0.75em;
+  }
+}
+
+.mention {
+  color: #A975FF;
+  background-color: rgba(#A975FF, 0.1);
+  border-radius: 0.3rem;
+  padding: 0.1rem 0.3rem;
+}
+</style>
diff --git a/docs/src/docPages/api/commands.md b/docs/src/docPages/api/commands.md
index 7b9e68db..0103e3f0 100644
--- a/docs/src/docPages/api/commands.md
+++ b/docs/src/docPages/api/commands.md
@@ -175,6 +175,7 @@ Have a look at all of the core commands listed below. They should give you a goo
 | Command               | Description                             |
 | --------------------- | --------------------------------------- |
 | .blur()               | Removes focus from the editor.          |
+| .deleteRange()        | Delete a given range.                   |
 | .deleteSelection()    | Delete the selection, if there is one.  |
 | .focus()              | Focus the editor at the given position. |
 | .scrollIntoView()     | Scroll the selection into view.         |
diff --git a/docs/src/docPages/experiments.md b/docs/src/docPages/experiments.md
index 774263f0..1c0d8d84 100644
--- a/docs/src/docPages/experiments.md
+++ b/docs/src/docPages/experiments.md
@@ -6,3 +6,4 @@ Congratulations! You’ve found our secret playground with a list of experiments
 * [Comments](/experiments/comments)
 * [CharacterLimit](/experiments/character-limit)
 * [Color](/experiments/color)
+* [Commands](/experiments/commands)
diff --git a/docs/src/docPages/experiments/commands.md b/docs/src/docPages/experiments/commands.md
new file mode 100644
index 00000000..62c1593d
--- /dev/null
+++ b/docs/src/docPages/experiments/commands.md
@@ -0,0 +1,5 @@
+# Commands
+
+⚠️ Experiment
+
+<demo name="Experiments/Commands" highlight="" />
diff --git a/packages/core/src/commands/deleteRange.ts b/packages/core/src/commands/deleteRange.ts
new file mode 100644
index 00000000..8c2d721e
--- /dev/null
+++ b/packages/core/src/commands/deleteRange.ts
@@ -0,0 +1,14 @@
+import { Command, Range } from '../types'
+
+/**
+ * Delete a given range.
+ */
+export const deleteRange = (range: Range): Command => ({ tr, dispatch }) => {
+  const { from, to } = range
+
+  if (dispatch) {
+    tr.delete(from, to)
+  }
+
+  return true
+}
diff --git a/packages/core/src/extensions/commands.ts b/packages/core/src/extensions/commands.ts
index 117b5708..2c267821 100644
--- a/packages/core/src/extensions/commands.ts
+++ b/packages/core/src/extensions/commands.ts
@@ -4,6 +4,7 @@ import * as clearContent from '../commands/clearContent'
 import * as clearNodes from '../commands/clearNodes'
 import * as command from '../commands/command'
 import * as createParagraphNear from '../commands/createParagraphNear'
+import * as deleteRange from '../commands/deleteRange'
 import * as deleteSelection from '../commands/deleteSelection'
 import * as exitCode from '../commands/exitCode'
 import * as extendMarkRange from '../commands/extendMarkRange'
@@ -52,6 +53,7 @@ export const Commands = Extension.create({
       ...clearNodes,
       ...command,
       ...createParagraphNear,
+      ...deleteRange,
       ...deleteSelection,
       ...exitCode,
       ...extendMarkRange,