From a74c91742ab36503d472c3879c985b8827d2a4ec Mon Sep 17 00:00:00 2001
From: Rushabh Mehta <rmehta@gmail.com>
Date: Thu, 27 Dec 2018 12:55:52 +0530
Subject: [PATCH] fix(formatting): for email replies (#6676)

* fix(fomratting): for email replies

* fix(timeline): some more testing and fixes

* fix(style): for blockquotes, also feedback
---
 .../public/js/frappe/form/footer/timeline.js  |  3 +-
 .../public/js/frappe/views/communication.js   | 33 ++++++++++++-------
 frappe/public/less/form.less                  |  5 ++-
 frappe/public/less/quill.less                 |  6 ++++
 4 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/frappe/public/js/frappe/form/footer/timeline.js b/frappe/public/js/frappe/form/footer/timeline.js
index 0782f57b91..44771dd7c5 100644
--- a/frappe/public/js/frappe/form/footer/timeline.js
+++ b/frappe/public/js/frappe/form/footer/timeline.js
@@ -2,6 +2,7 @@
 // MIT License. See license.txt
 
 frappe.provide('frappe.timeline');
+frappe.separator_element = '<div>---</div>';
 
 frappe.ui.form.Timeline = class Timeline {
 	constructor(opts) {
@@ -344,7 +345,7 @@ frappe.ui.form.Timeline = class Timeline {
 			});
 		} else {
 			if(c.communication_type=="Communication" && c.communication_medium=="Email") {
-				c.content = c.content.split('<span data-comment="original-reply" class="hidden">Reply To</span>')[0];
+				c.content = c.content.split(frappe.separator_element)[0];
 				c.content = frappe.utils.strip_original_content(c.content);
 
 				c.original_content = c.content;
diff --git a/frappe/public/js/frappe/views/communication.js b/frappe/public/js/frappe/views/communication.js
index 46f25bc23b..95fef7cf5a 100755
--- a/frappe/public/js/frappe/views/communication.js
+++ b/frappe/public/js/frappe/views/communication.js
@@ -11,6 +11,7 @@ frappe.views.CommunicationComposer = Class.extend({
 	},
 	make: function() {
 		var me = this;
+
 		this.dialog = new frappe.ui.Dialog({
 			title: (this.title || this.subject || __("New Email")),
 			no_submit_on_enter: true,
@@ -499,7 +500,7 @@ frappe.views.CommunicationComposer = Class.extend({
 		if (this.dialog) {
 			try {
 				let message = this.dialog.get_value('content');
-				message = message.split('<span data-comment="original-reply" class="hidden">Reply To</span>')[0];
+				message = message.split(frappe.separator_element)[0];
 				localStorage.setItem(this.frm.doctype + this.frm.docname, message);
 			} catch (e) {
 				// silently fail
@@ -656,9 +657,9 @@ frappe.views.CommunicationComposer = Class.extend({
 
 			let last_email_content = last_email.original_comment || last_email.content;
 
-			last_email_content = last_email_content
-				.replace(/&lt;meta[\s\S]*meta&gt;/g, '') // remove <meta> tags
-				.replace(/&lt;style[\s\S]*&lt;\/style&gt;/g, ''); // // remove <style> tags
+			// convert the email context to text as we are enclosing
+			// this inside <blockquote>
+			last_email_content = this.html2text(last_email_content).replace(/\n/g, '<br>');
 
 			// clip last email for a maximum of 20k characters
 			// to prevent the email content from getting too large
@@ -671,17 +672,27 @@ frappe.views.CommunicationComposer = Class.extend({
 			content = `
 				<div><br></div>
 				${reply}
-				<div class="ql-collapse" data-collapse="true">
-					<span data-comment='original-reply'>Reply To</span>
-					<blockquote>
-					<p>${__("On {0}, {1} wrote:", [frappe.datetime.global_date_format(communication_date) , last_email.sender])}</p>
-					${last_email_content}
-					</blockquote>
-				</div>
+				${frappe.separator_element}
+				<p>${__("On {0}, {1} wrote:", [frappe.datetime.global_date_format(communication_date) , last_email.sender])}</p>
+				<blockquote>
+				${last_email_content}
+				</blockquote>
 			`;
 		} else {
 			content = "<div><br></div>" + reply;
 		}
 		fields.content.set_value(content);
+	},
+	html2text: function(html) {
+		// convert HTML to text and try and preserve whitespace
+		var d = document.createElement( 'div' );
+		d.innerHTML = html.replace(/<\/div>/g, '<br></div>')  // replace end of blocks
+			.replace(/<\/p>/g, '<br></p>') // replace end of paragraphs
+			.replace(/<br>/g, '\n');
+		let text = d.textContent;
+
+		// replace multiple empty lines with just one
+		return text.replace(/\n{3,}/g, '\n\n');
 	}
 });
+
diff --git a/frappe/public/less/form.less b/frappe/public/less/form.less
index 940790e0f6..9be80ab707 100644
--- a/frappe/public/less/form.less
+++ b/frappe/public/less/form.less
@@ -340,7 +340,10 @@ h6.uppercase, .h6.uppercase {
 	}
 
 	blockquote {
-		font-size: inherit;
+		font-size: 14px;
+		padding-top: 0px;
+		padding-bottom: 0px;
+		margin: 0px;
 	}
 
 	.btn-more {
diff --git a/frappe/public/less/quill.less b/frappe/public/less/quill.less
index a2c8d55b01..4a409e442c 100644
--- a/frappe/public/less/quill.less
+++ b/frappe/public/less/quill.less
@@ -118,4 +118,10 @@
 
 .ql-editor td {
     border: 1px solid @border-color;
+}
+
+.ql-snow .ql-editor blockquote {
+	font-size: 13px;
+	margin-top: 0px;
+	margin-bottom: 0px;
 }
\ No newline at end of file