From 4dfba17941eb1b2a2e55d32f8a599274606be8c3 Mon Sep 17 00:00:00 2001
From: void <v0id@riseup.net>
Date: Sat, 13 Feb 2021 01:14:36 +0000
Subject: [PATCH] editor: fixes y links

---
 app/javascript/editor/editor.ts             | 114 +++++++++++++++-----
 app/javascript/editor/types.ts              |   9 +-
 app/javascript/editor/types/blocks.ts       |   2 +-
 app/javascript/editor/types/link.ts         |  32 ++++++
 app/javascript/editor/types/marks.ts        |   6 +-
 app/javascript/editor/types/parentBlocks.ts |   2 +-
 app/javascript/editor/utils.ts              |   9 +-
 app/views/posts/attributes/_content.haml    |  20 ++--
 8 files changed, 148 insertions(+), 46 deletions(-)
 create mode 100644 app/javascript/editor/types/link.ts

diff --git a/app/javascript/editor/editor.ts b/app/javascript/editor/editor.ts
index 7d42e6e..ef3d315 100644
--- a/app/javascript/editor/editor.ts
+++ b/app/javascript/editor/editor.ts
@@ -1,17 +1,10 @@
 import { storeContent, restoreContent } from 'editor/storage'
-import { isDirectChild, moveChildren, safeGetSelection, safeGetRangeAt } from 'editor/utils'
+import { isDirectChild, moveChildren, safeGetSelection, safeGetRangeAt, setAuxiliaryToolbar } from 'editor/utils'
 import { types, getValidChildren, getType } from 'editor/types'
 import { setupButtons as setupMarksButtons } from 'editor/types/marks'
 import { setupButtons as setupBlocksButtons } from 'editor/types/blocks'
 import { setupButtons as setupParentBlocksButtons } from 'editor/types/parentBlocks'
-
-export interface Editor {
-	editorEl: HTMLElement,
-	toolbarEl: HTMLElement,
-	contentEl: HTMLElement,
-	wordAlertEl: HTMLElement,
-	htmlEl: HTMLTextAreaElement,
-}
+import { setupAuxiliaryToolbar as setupLinkAuxiliaryToolbar } from 'editor/types/link'
 
 // Esta funcion corrije errores que pueden haber como:
 //  * que un nodo que no tiene 'text' permitido no tenga children (se les
@@ -50,7 +43,7 @@ function fixContent (editor: Editor, node: Element = editor.contentEl): void {
 
 	if (getValidChildren(node, type).length == 0) {
 		if (typeof type.handleEmpty !== 'string') {
-			const el = type.handleEmpty.create()
+			const el = type.handleEmpty.create(editor)
 			// mover cosas que pueden haber
 			// por ejemplo: cuando convertís a un <ul>, queda texto fuera del li que
 			// creamos acá
@@ -129,25 +122,66 @@ function routine (editor: Editor): void {
 	}
 }
 
+export interface Editor {
+	editorEl: HTMLElement,
+	toolbarEl: HTMLElement,
+	toolbar: {
+		auxiliary: {
+			mark: {
+				parentEl: HTMLElement,
+				colorEl: HTMLInputElement,
+			},
+			multimedia: {
+				parentEl: HTMLElement,
+				fileEl: HTMLInputElement,
+				uploadEl: HTMLButtonElement,
+				altEl: HTMLInputElement,
+			},
+			link: {
+				parentEl: HTMLElement,
+				urlEl: HTMLInputElement,
+			},
+		},
+	},
+	contentEl: HTMLElement,
+	wordAlertEl: HTMLElement,
+	htmlEl: HTMLTextAreaElement,
+}
+
+function getSel<T extends Element>(parentEl: HTMLElement, selector: string): T {
+	const el = parentEl.querySelector<T>(selector)
+	if (!el) throw new Error(`No pude encontrar un componente \`${selector}\``)
+	return el
+}
+
 function setupEditor (editorEl: HTMLElement): void {
 	// XXX: ¡Esto afecta a todo el documento! ¿Quizás usar un iframe para el editor?
 	document.execCommand('defaultParagraphSeparator', false, 'p')
 
-	const toolbarEl = editorEl.querySelector<HTMLElement>('.editor-toolbar')
-	if (!toolbarEl) throw new Error('No pude encontrar .editor-toolbar')
-	const contentEl = editorEl.querySelector<HTMLElement>('.editor-content')
-	if (!contentEl) throw new Error('No pude encontrar .editor-content')
-	const wordAlertEl = editorEl.querySelector<HTMLElement>('.editor-aviso-word')
-	if (!wordAlertEl) throw new Error('No pude encontrar .editor-aviso-word')
-	const htmlEl = editorEl.querySelector<HTMLTextAreaElement>('textarea')
-	if (!htmlEl) throw new Error('No pude encontrar el textarea para el HTML')
-
 	const editor: Editor = {
 		editorEl,
-		toolbarEl,
-		contentEl,
-		wordAlertEl,
-		htmlEl,
+		toolbarEl: getSel(editorEl, '.editor-toolbar'),
+		toolbar: {
+			auxiliary: {
+				mark: {
+					parentEl: getSel(editorEl, '[data-editor-auxiliary=mark]'),
+					colorEl: getSel(editorEl, '[data-editor-auxiliary=mark] [name=mark-color]'),
+				},
+				multimedia: {
+					parentEl: getSel(editorEl, '[data-editor-auxiliary=multimedia]'),
+					fileEl: getSel(editorEl, '[data-editor-auxiliary=multimedia] [name=multimedia-file]'),
+					uploadEl: getSel(editorEl, '[data-editor-auxiliary=multimedia] [name=multimedia-file-upload]'),
+					altEl: getSel(editorEl, '[data-editor-auxiliary=multimedia] [name=multimedia-alt]'),
+				},
+				link: {
+					parentEl: getSel(editorEl, '[data-editor-auxiliary=link]'),
+					urlEl: getSel(editorEl, '[data-editor-auxiliary=link] [name=link-url]'),
+				},
+			},
+		},
+		contentEl: getSel(editorEl, '.editor-content'),
+		wordAlertEl: getSel(editorEl, '.editor-aviso-word'),
+		htmlEl: getSel(editorEl, 'textarea'),
 	}
 	console.debug('iniciando editor', editor)
 
@@ -165,7 +199,7 @@ function setupEditor (editorEl: HTMLElement): void {
 
 	// Setup routine listeners
 	const observer = new MutationObserver(() => routine(editor))
-	observer.observe(contentEl, {
+	observer.observe(editor.contentEl, {
 		childList: true,
 		attributes: true,
 		subtree: true,
@@ -174,19 +208,43 @@ function setupEditor (editorEl: HTMLElement): void {
 
 	document.addEventListener("selectionchange", () => routine(editor))
 
+	// Capture onClick
+	editor.contentEl.addEventListener('click', event => {
+		const target = event.target! as Element
+		const type = getType(target)
+		if (!type || !type.type.onClick) {
+			setAuxiliaryToolbar(editor, null)
+			const selectedEl = editor.contentEl.querySelector('[data-editor-selected]')
+			if (selectedEl) delete (selectedEl as HTMLElement).dataset.editorSelected
+			return true
+		}
+		type.type.onClick(editor, target)
+		return false
+	}, true)
+
+	// Clean seleted
+	const selectedEl = editor.contentEl.querySelector('[data-editor-selected]')
+	if (selectedEl) delete (selectedEl as HTMLElement).dataset.editorSelected
+
 	// Setup botones
 	setupMarksButtons(editor)
 	setupBlocksButtons(editor)
 	setupParentBlocksButtons(editor)
 
+	setupLinkAuxiliaryToolbar(editor)
+
 	// Finally...
 	routine(editor)
 }
 
 document.addEventListener("turbolinks:load", () => {
-	for (const editorEl of document.querySelectorAll<HTMLElement>('.editor')) {
-		if (!editorEl.querySelector('.editor-toolbar')) continue
-
-		setupEditor(editorEl)
+	for (const editorEl of document.querySelectorAll<HTMLElement>('.editor[data-editor]')) {
+		try {
+			setupEditor(editorEl)
+		} catch (error) {
+			//alert(`No pude iniciar el editor: ${error}`)
+			// TODO: mostrar error
+			console.error('no se pudo iniciar el editor, error completo', error)
+		}
 	}
 })
diff --git a/app/javascript/editor/types.ts b/app/javascript/editor/types.ts
index 91dfb4e..6cc74fd 100644
--- a/app/javascript/editor/types.ts
+++ b/app/javascript/editor/types.ts
@@ -1,7 +1,8 @@
+import { Editor } from 'editor/editor'
 import { marks } from 'editor/types/marks'
 import { blocks, li, EditorBlock } from 'editor/types/blocks'
 import { parentBlocks } from 'editor/types/parentBlocks'
-import { blockNames } from 'editor/utils'
+import { blockNames, parentBlockNames } from 'editor/utils'
 
 export interface EditorNode {
 	selector: string,
@@ -18,7 +19,9 @@ export interface EditorNode {
 	//   ej: ul: { handleNothing: li }
 	handleEmpty: 'do-nothing' | 'remove' | EditorBlock,
 
-	create: () => HTMLElement,
+	create: (editor: Editor) => HTMLElement,
+
+	onClick?: (editor: Editor, target: Element) => void,
 }
 
 export const types: { [propName: string]: EditorNode } = {
@@ -28,7 +31,7 @@ export const types: { [propName: string]: EditorNode } = {
 	...parentBlocks,
 	contentEl: {
 		selector: '.editor-content',
-		allowedChildren: [...blockNames, ...Object.keys(parentBlocks)],
+		allowedChildren: [...blockNames, ...parentBlockNames],
 		handleEmpty: blocks.paragraph,
 		create: () => { throw new Error('se intentó crear contentEl') }
 	},
diff --git a/app/javascript/editor/types/blocks.ts b/app/javascript/editor/types/blocks.ts
index 55a7502..b3bee4e 100644
--- a/app/javascript/editor/types/blocks.ts
+++ b/app/javascript/editor/types/blocks.ts
@@ -82,7 +82,7 @@ export function setupButtons (editor: Editor): void {
 				? blocks.paragraph
 				: type
 
-			const el = replacementType.create()
+			const el = replacementType.create(editor)
 			moveChildren(blockEl, el, null)
 			parentEl.replaceChild(el, blockEl)
 			sel.collapse(el)
diff --git a/app/javascript/editor/types/link.ts b/app/javascript/editor/types/link.ts
new file mode 100644
index 0000000..62090ae
--- /dev/null
+++ b/app/javascript/editor/types/link.ts
@@ -0,0 +1,32 @@
+import { Editor } from 'editor/editor'
+import { EditorNode } from 'editor/types'
+import { markNames, setAuxiliaryToolbar } from 'editor/utils'
+
+export const link: EditorNode = {
+	selector: 'a',
+	allowedChildren: [...markNames.filter(n => n !== 'link'), 'text'],
+	handleEmpty: 'remove',
+	create: () => document.createElement('a'),
+	onClick (editor, el) {
+		if (!(el instanceof HTMLAnchorElement))
+			throw new Error('oh no')
+		el.dataset.editorSelected = ''
+		editor.toolbar.auxiliary.link.urlEl.value = el.href
+		setAuxiliaryToolbar(editor, editor.toolbar.auxiliary.link.parentEl)
+	}
+}
+
+export function setupAuxiliaryToolbar (editor: Editor): void {
+	editor.toolbar.auxiliary.link.urlEl.addEventListener('input', event => {
+		const url = editor.toolbar.auxiliary.link.urlEl.value
+		const selectedEl = editor.contentEl
+			.querySelector<HTMLAnchorElement>('a[data-editor-selected]')
+		if (!selectedEl)
+			throw new Error('No pude encontrar el link para setear el enlace')
+		
+		selectedEl.href = url
+	})
+	editor.toolbar.auxiliary.link.urlEl.addEventListener('keydown', event => {
+		if (event.keyCode == 13) event.preventDefault()
+	})
+}
diff --git a/app/javascript/editor/types/marks.ts b/app/javascript/editor/types/marks.ts
index 8fb97ab..ac3e73b 100644
--- a/app/javascript/editor/types/marks.ts
+++ b/app/javascript/editor/types/marks.ts
@@ -4,7 +4,9 @@ import {
 	safeGetSelection, safeGetRangeAt,
 	moveChildren,
 	markNames,
+	setAuxiliaryToolbar,
 } from 'editor/utils'
+import { link } from 'editor/types/link'
 
 function makeMark (name: string, tag: string): EditorNode {
 	return {
@@ -24,7 +26,7 @@ export const marks: { [propName: string]: EditorNode } = {
 	sub: makeMark('sub', 'sub'),
 	super: makeMark('super', 'sup'),
 	mark: makeMark('mark', 'mark'),
-	link: makeMark('link', 'a'),
+	link,
 }
 
 function recursiveFilterSelection (
@@ -78,7 +80,7 @@ export function setupButtons (editor: Editor): void {
 					// TODO: mostrar error
 					return console.error("No puedo marcar cosas a través de distintos bloques!")
 
-				const tagEl = type.create()
+				const tagEl = type.create(editor)
 
 				tagEl.appendChild(range.extractContents())
 
diff --git a/app/javascript/editor/types/parentBlocks.ts b/app/javascript/editor/types/parentBlocks.ts
index 090d0ea..346ac3b 100644
--- a/app/javascript/editor/types/parentBlocks.ts
+++ b/app/javascript/editor/types/parentBlocks.ts
@@ -76,7 +76,7 @@ export function setupButtons (editor: Editor): void {
 			if (!parentEl)
 				throw new Error('no')
 
-			const replacementEl = type.create()
+			const replacementEl = type.create(editor)
 			if (parentEl == editor.contentEl) {
 				// no está en un parentBlock
 				editor.contentEl.insertBefore(replacementEl, blockEl)
diff --git a/app/javascript/editor/utils.ts b/app/javascript/editor/utils.ts
index 0710bdd..fc9e087 100644
--- a/app/javascript/editor/utils.ts
+++ b/app/javascript/editor/utils.ts
@@ -1,7 +1,7 @@
 import { Editor } from 'editor/editor'
 
 export const blockNames = ['paragraph', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'unordered_list', 'ordered_list']
-export const markNames = ['bold', 'italic', 'deleted', 'underline', 'sub', 'super', 'mark', 'a']
+export const markNames = ['bold', 'italic', 'deleted', 'underline', 'sub', 'super', 'mark', 'link']
 export const parentBlockNames = ['left', 'center', 'right']
 
 export function moveChildren (from: Element, to: Element, toRef: Node | null) {
@@ -64,3 +64,10 @@ export function splitNode (node: Element, range: Range): [SplitNode, SplitNode]
 
 	return [left, right]
 }
+
+export function setAuxiliaryToolbar (editor: Editor, bar: HTMLElement | null): void {
+	for (const { parentEl } of Object.values(editor.toolbar.auxiliary)) {
+		delete parentEl.dataset.editorAuxiliaryActive
+	}
+	if (bar) bar.dataset.editorAuxiliaryActive = 'active'
+}
diff --git a/app/views/posts/attributes/_content.haml b/app/views/posts/attributes/_content.haml
index c6faf7e..08cd8a5 100644
--- a/app/views/posts/attributes/_content.haml
+++ b/app/views/posts/attributes/_content.haml
@@ -3,7 +3,7 @@
   = render 'posts/attribute_feedback',
     post: post, attribute: attribute, metadata: metadata
 
-  .editor{ id: attribute }
+  .editor{ id: attribute, data: { editor: '' } }
     -# Esto es para luego decirle al navegador que se olvide estas cosas.
     = hidden_field_tag 'storage_keys[]', "#{request.original_url}##{attribute}", data: { target: 'storage-key' }
     .alert.alert-info
@@ -40,24 +40,24 @@
         HAML cringe
         TODO: generar IDs para labels
       .editor-auxiliary-toolbar.mt-1.scrollbar-black{ data: { 'editor_auxiliary_toolbar': '' } }
-        %form.form-group{ data: { editor: { auxiliary: 'mark' } } }
+        .form-group{ data: { editor: { auxiliary: 'mark' } } }
           %label{ for: 'mark-color' }= t('editor.color')
-          %input.form-control{ type: 'color', data: { prop: 'mark-color' } }/
+          %input.form-control{ type: 'color', name: 'mark-color' }/
 
-        %form{ data: { editor: { auxiliary: 'multimedia' } } }
+        %div{ data: { editor: { auxiliary: 'multimedia' } } }
           .row
             .col-12.col-lg.form-group.d-flex.align-items-end
               .custom-file
-                %input.custom-file-input{ type: 'file', data: { prop: 'multimedia-file' }, }/
+                %input.custom-file-input{ type: 'file', name: 'multimedia-file' }/
                 %label.custom-file-label{ for: 'multimedia-file' }= t('editor.file.multimedia')
-              %button.btn{ type: 'button', data: { prop: 'multimedia-file-upload' }, }= t('editor.file.multimedia-upload')
+              %button.btn{ type: 'button', name: 'multimedia-file-upload' }= t('editor.file.multimedia-upload')
             .col-12.col-lg.form-group
               %label{ for: 'multimedia-alt' }= t('editor.description')
-              %input.form-control{ type: 'text', data: { prop: 'multimedia-alt' } }/
+              %input.form-control{ type: 'text', name: 'multimedia-alt' }/
 
-        %form.form-group{ data: { editor: { auxiliary: 'link' } } }
-          %label{ for: 'a-href' }= t('editor.url')
-          %input.form-control{ type: 'url', data: { prop: 'a-href' } }/
+        .form-group{ data: { editor: { auxiliary: 'link' } } }
+          %label{ for: 'link-url' }= t('editor.url')
+          %input.form-control{ type: 'url', name: 'link-url' }/
 
       .editor-aviso-word.alert.alert-info
         %p= t('editor.word')