feat: 添加waline,valine 和twikoo 提供的文章閲讀數配置 close #502

improvement: 當文章頁cover 和cover 的 default_img都沒有配置時，會去讀取default_top_img的參數
improvement: 在完全沒有配置的情況下，運行時控制臺報null 的問題

layout/includes/head/Open_Graph.pug

@@ -1,6 +1,6 @@
 if theme.Open_Graph_meta
   - let contentType = is_post() ? 'article' : 'website'
-  - let metaImage = full_url_for(page.cover || theme.avatar.img)
+  - let metaImage = (page.cover || theme.avatar.img) ? full_url_for(page.cover || theme.avatar.img) : ''
   - let fb_appId = theme.facebook_comments.app_id || ''
   - let fb_admins = theme.facebook_comments.user_id || ''
 

layout/includes/header/index.pug

@@ -1,6 +1,6 @@
 if !theme.disable_top_img && page.top_img !== false
   if is_post()
-    - var top_img = page.top_img || page.cover || page.randomcover || theme.default_top_img
+    - var top_img = page.top_img || page.cover || page.randomcover
   else if is_page()
     - var top_img = page.top_img || theme.default_top_img
   else if is_tag()

layout/includes/header/post-info.pug

@@ -1,3 +1,4 @@
+- let comments = theme.comments
 #post-info
   h1.post-title= page.title || _p('no_title')
     if theme.post_edit.enable
@@ -51,15 +52,28 @@
             span.post-meta-label= _p('post.min2read') + ':'
             span= min2read(page.content, {cn: 350, en: 160}) + _p('post.min2read_unit')
     
-      if theme.busuanzi.page_pv
+      //- for pv and count
+      mixin pvBlock(parent_id,parent_class)
         span.post-meta-separator |
-        span.post-meta-pv-cv
+        span(class=parent_class id=parent_id)
           i.far.fa-eye.fa-fw.post-meta-icon
           span.post-meta-label=_p('post.page_pv') + ':'
-          span#busuanzi_value_page_pv
+          if block
+            block
 
-      if !theme.comments.lazyload && page.comments !== false && theme.comments.use && theme.comments.count
-        - var whichCount = theme.comments.use[0]
+      if theme.busuanzi.page_pv
+        +pvBlock('','post-meta-pv-cv')
+          span#busuanzi_value_page_pv
+      else if comments.use && !comments.lazyload
+        if (comments.use.includes('Valine') && theme.valine.visitor) || (comments.use.includes('Waline') && theme.waline.visitor)
+          +pvBlock(url_for(page.path),'leancloud_visitors')
+            span.leancloud-visitors-count
+        else if (comments.use.includes('Twikoo') && theme.twikoo.visitor)
+          +pvBlock('','')
+            span#twikoo_visitors
+
+      if comments.count && !comments.lazyload && page.comments !== false && comments.use
+        - var whichCount = comments.use[0]
 
         mixin countBlock
           span.post-meta-separator |

layout/includes/sidebar.pug

@@ -1,11 +1,12 @@
 #sidebar
   #menu-mask
   #sidebar-menus
-    .author-avatar
-      if theme.lazyload.enable
-        img.avatar-img(data-lazy-src=url_for(theme.avatar.img) onerror=`onerror=null;src='${theme.error_img.flink}'` alt="avatar")
-      else
-        img.avatar-img(src=url_for(theme.avatar.img) onerror=`onerror=null;src='${theme.error_img.flink}'` alt="avatar")
+    if theme.avatar.img
+      .author-avatar
+        if theme.lazyload.enable
+          img.avatar-img(data-lazy-src=url_for(theme.avatar.img) onerror=`onerror=null;src='${theme.error_img.flink}'` alt="avatar")
+        else
+          img.avatar-img(src=url_for(theme.avatar.img) onerror=`onerror=null;src='${theme.error_img.flink}'` alt="avatar")
     .site-data
       if site.posts.length
         .data-item.is-center

layout/includes/third-party/comments/valine.pug

@@ -21,6 +21,7 @@ script.
         emojiMaps: !{emojiMaps},
         enableQQ: #{theme.valine.enableQQ},
         path: window.location.pathname,
+        visitor: #{theme.valine.visitor}
       }
 
       if (!{Boolean(theme.valine.requiredFields)}) { 

layout/includes/third-party/comments/waline.pug

@@ -13,6 +13,7 @@ script.
         path: location.pathname,
         emojiCDN: '#{theme.waline.emojiCDN}',
         emojiMaps: !{emojiMaps},
+        visitor: #{theme.waline.visitor}
       }
       
       if (!{Boolean(option)}) {

layout/includes/widget/card_author.pug

@@ -1,10 +1,11 @@
 if theme.aside.card_author.enable
   .card-widget.card-info
     .card-info-avatar.is-center
-      if theme.lazyload.enable
-        img.avatar-img(data-lazy-src=url_for(theme.avatar.img) onerror=`this.onerror=null;this.src='` + url_for(theme.error_img.flink) + `'` alt="avatar")
-      else
-        img.avatar-img(src=url_for(theme.avatar.img) onerror=`this.onerror=null;this.src='` + url_for(theme.error_img.flink) + `'` alt="avatar")      
+      if theme.avatar.img
+        if theme.lazyload.enable
+          img.avatar-img(data-lazy-src=url_for(theme.avatar.img) onerror=`this.onerror=null;this.src='` + url_for(theme.error_img.flink) + `'` alt="avatar")
+        else
+          img.avatar-img(src=url_for(theme.avatar.img) onerror=`this.onerror=null;this.src='` + url_for(theme.error_img.flink) + `'` alt="avatar")
       .author-info__name= config.author
       .author-info__description!= theme.aside.card_author.description || config.description
 

layout/includes/widget/card_tags.pug

@@ -7,6 +7,6 @@ if theme.aside.card_tags.enable
 
       - let tagLimit = theme.aside.card_tags.limit === 0 ? 0 : theme.aside.card_tags.limit || 40
       if theme.aside.card_tags.color
-        .card-tag-cloud!= cloudTags({source: site.tags, minfontsize: 1.1, maxfontsize: 1.5, limit: tagLimit, unit: 'em'})
+        .card-tag-cloud!= cloudTags({source: site.tags, minfontsize: 1.15, maxfontsize: 1.45, limit: tagLimit, unit: 'em'})
       else
         .card-tag-cloud!= tagcloud({min_font: 1.1, max_font: 1.5, amount: tagLimit , color: true, start_color: '#999', end_color: '#99a9bf', unit: 'em'})