From 93baaf261a3c78c3fb3f43e67958cc4191eb7c4e Mon Sep 17 00:00:00 2001
From: Mouse Reeve <mousereeve@riseup.net>
Date: Sat, 31 Oct 2020 14:18:56 -0700
Subject: [PATCH] Show/hide toggle for long book descriptions

---
 .../templates/snippets/book_description.html  | 22 +++++++++++++++++--
 bookwyrm/templatetags/fr_display.py           | 19 ++++++++++++++++
 2 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/bookwyrm/templates/snippets/book_description.html b/bookwyrm/templates/snippets/book_description.html
index 12c9ccfb0..839a80986 100644
--- a/bookwyrm/templates/snippets/book_description.html
+++ b/bookwyrm/templates/snippets/book_description.html
@@ -1,2 +1,20 @@
-<blockquote class="content">{% if book.description %}{{ book.description }}{% elif book.parent_work.description %}{{ book.parent_work.description }}{% endif %}</blockquote>
-
+{% load fr_display %}
+{% with book|book_description as full %}
+    {% with full|text_overflow as trimmed %}
+    {% if trimmed != full %}
+    <div>
+        <input type="radio" name="show-hide-{{ book.id }}" id="show-{{ book.id }}" class="toggle-control" checked>
+        <blockquote class="content toggle-content hidden">{{ trimmed }}
+        <label class="button is-small" for="hide-{{ book.id }}">show more</label></blockquote>
+    </div>
+    <div>
+        <input type="radio" name="show-hide-{{ book.id }}" id="hide-{{ book.id }}" class="toggle-control">
+        <blockquote class="content toggle-content hidden">{{ full }}
+        <label class="button is-small" for="show-{{ book.id }}">show less</label></blockquote>
+    </div>
+    {% else %}
+    <blockquote class="content">{{ full }}
+    </blockquote>
+    {% endif %}
+    {% endwith %}
+{% endwith %}
diff --git a/bookwyrm/templatetags/fr_display.py b/bookwyrm/templatetags/fr_display.py
index cb4ee4198..9e6e35cd5 100644
--- a/bookwyrm/templatetags/fr_display.py
+++ b/bookwyrm/templatetags/fr_display.py
@@ -106,6 +106,25 @@ def get_edition_info(book):
     return ', '.join(i for i in items if i)
 
 
+@register.filter(name='book_description')
+def get_book_description(book):
+    ''' use the work's text if the book doesn't have it '''
+    return book.description or book.parent_work.description
+
+
+@register.filter(name='text_overflow')
+def text_overflow(text):
+    ''' dont' let book descriptions run for ages '''
+    char_max = 500
+    if len(text) < char_max:
+        return text
+
+    trimmed = text[:char_max]
+    # go back to the last space
+    trimmed = ' '.join(trimmed.split(' ')[:-1])
+    return trimmed + '...'
+
+
 @register.simple_tag(takes_context=True)
 def shelve_button_identifier(context, book):
     ''' check what shelf a user has a book on, if any '''