Add enrich_li_class for nested tasklist

This intends to generate tasklist the same way vimwiki does
for .wiki extensions. Allows for a visualization of
progress in nested tasklists, and customization of
the same via html templates

example_files/default.tpl

@@ -4,6 +4,45 @@
   <title>%title%</title>
 
   %pygments%
+<!--Style for Vimwiki Tasklist-->
+<style>
+.rejected {
+    background-image: url(data:image/png;base64,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);
+    background-repeat: no-repeat;
+    background-position: 0 .2em;
+    padding-left: 5.5em;
+}
+.done0 {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAAA7SURBVCiR7dMxEgAgCANBI3yVRzF5KxNbW6wsuH7LQ2YKQK1mkswBVERYF5Os3UV3gwd/jF2SkXy66gAZkxS6BniubAAAAABJRU5ErkJggg==);
+    background-repeat: no-repeat;
+    background-position: 0 .2em;
+    padding-left: 1.5em;
+}
+.done1 {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAABtSURBVCiR1ZO7DYAwDER9BDmTeZQMFXmUbGYpOjrEryA0wOvO8itOslFrJYAug5BMM4BeSkmjsrv3aVTa8p48Xw1JSkSsWVUFwD05IqS1tmYzk5zzae9jnVVVzGyXb8sALjse+euRkEzu/uirFomVIdDGOLjuAAAAAElFTkSuQmCC);
+    background-repeat: no-repeat;
+    background-position: 0 .15em;
+    padding-left: 1.5em;
+}
+.done2 {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAAB1SURBVCiRzdO5DcAgDAVQGxjAYgTvxlDIu1FTIRYAp8qlFISkSH7l5kk+ZIwxKiI2mIyqWoeILYRgZ7GINDOLjnmF3VqklKCUMgTee2DmM661Qs55iI3Zm/1u5h9sm4ig9z4ERHTFzLyd4G4+nFlVrYg8+qoF/c0kdpeMsmcAAAAASUVORK5CYII=);
+    background-repeat: no-repeat;
+    background-position: 0 .15em;
+    padding-left: 1.5em;
+}
+.done3 {
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAABoSURBVCiR7dOxDcAgDATA/0DtUdiKoZC3YhLkHjkVKF3idJHiztKfvrHZWnOSE8Fx95RJzlprimJVnXktvXeY2S0SEZRSAAAbmxnGGKH2I5T+8VfxPhIReQSuuY3XyYWa3T2p6quvOgGrvSFGlewuUAAAAABJRU5ErkJggg==);
+    background-repeat: no-repeat;
+    background-position: 0 .15em;
+    padding-left: 1.5em;
+}
+.done4 {
+    background-image: url(data:image/png;base64,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);
+    background-repeat: no-repeat;
+    background-position: 0 .15em;
+    padding-left: 1.5em;
+}
+</style>
 </head>
 <body id="%title%">
   <h2 id="title">%title%</h2>

lib/vimwiki_markdown/wiki_body.rb

@@ -25,8 +25,9 @@ def to_s
       HTML::Pipeline::SyntaxHighlightFilter,
       HTML::Pipeline::TableOfContentsFilter
     ], { scope: "highlight"})
-    result = pipeline.call(html)
-    result[:output].to_s
+    @result = pipeline.call(html)
+    @result = @result[:output].to_s
+    enrich_li_class!
   end
 
 
@@ -74,4 +75,17 @@ def hack_replace_commonmarker_proc!
       CommonMarker.render_html(content, commonmarker_opts, commonmarker_exts)
     }
   end
+
+  def enrich_li_class!
+    syms = '\ .oOX\]'
+    syms_hash = {" ]" => 0, ".]" => 1, "o]" =>  2, "O]" => 3, "X]" => 4}
+    checkbox =  /<li>\s*\[[\s.oOX]\]/
+    checkbox_start =  /<li>\s*\[/
+    @result.gsub!(checkbox) do |m|
+      m = m.sub(checkbox_start, '<li class="done')
+      m = m.sub(/[#{syms}]*$/, syms_hash) << '">'
+    end
+    @result
+  end
+
 end

spec/lib/vimwiki_markdown/wiki_body_spec.rb

@@ -52,6 +52,36 @@ module VimwikiMarkdown
       expect(wiki_body.to_s).to match(/<a href="there.html">there<\/a>/)
     end
 
+    it "must enrich task list unchecked" do
+      allow_any_instance_of(VimwikiMarkdown::VimwikiLink).to receive(:vimwiki_markdown_file_exists?).and_return(true)
+      allow(wiki_body).to receive(:get_wiki_markdown_contents).and_return('- [ ] This is one line')
+      expect(wiki_body.to_s).to match(/<li class="done0"> This is one line<\/li>/)
+    end
+
+    it "must enrich task list checked" do
+      allow_any_instance_of(VimwikiMarkdown::VimwikiLink).to receive(:vimwiki_markdown_file_exists?).and_return(true)
+      allow(wiki_body).to receive(:get_wiki_markdown_contents).and_return('- [X] This is a checked line')
+      expect(wiki_body.to_s).to match(/<li class="done4"> This is a checked line<\/li>/)
+    end
+
+    it "must enrich task list parent 1" do
+      allow_any_instance_of(VimwikiMarkdown::VimwikiLink).to receive(:vimwiki_markdown_file_exists?).and_return(true)
+      allow(wiki_body).to receive(:get_wiki_markdown_contents).and_return('- [.] This is a parent 1 line')
+      expect(wiki_body.to_s).to match(/<li class="done1"> This is a parent 1 line<\/li>/)
+    end
+
+    it "must enrich task list parent 2" do
+      allow_any_instance_of(VimwikiMarkdown::VimwikiLink).to receive(:vimwiki_markdown_file_exists?).and_return(true)
+      allow(wiki_body).to receive(:get_wiki_markdown_contents).and_return('- [o] This is a parent 2 line')
+      expect(wiki_body.to_s).to match(/<li class="done2"> This is a parent 2 line<\/li>/)
+    end
+
+    it "must enrich task list parent 3" do
+      allow_any_instance_of(VimwikiMarkdown::VimwikiLink).to receive(:vimwiki_markdown_file_exists?).and_return(true)
+      allow(wiki_body).to receive(:get_wiki_markdown_contents).and_return('- [O] This is a parent 3 line')
+      expect(wiki_body.to_s).to match(/<li class="done3"> This is a parent 3 line<\/li>/)
+    end
+
     describe "syntax highlighting" do
       it "must give correct classes" do
         allow(wiki_body).to receive(:get_wiki_markdown_contents)

spec/spec_helper.rb

@@ -107,6 +107,28 @@ def wiki_index_markdown
 
 > this is a blockquote
 > without a linebreak
+
+## Test for checks
+
+- [ ] This is one line
+- [X] This is a checked line
+- [ ] This is a parent line 1
+  - [ ] This is a child line 1
+  - [ ] This is a child line 2
+- [.] This is a parent line 2
+  - [X] This is a child line 1
+  - [ ] This is a child line 2
+  - [ ] This is a child line 3
+- [o] This is a parent line 2
+  - [X] This is a child line 1
+  - [X] This is a child line 2
+  - [ ] This is a child line 3
+- [O] This is a parent line 3
+  - [X] This is a child line 1
+  - [X] This is a child line 2
+  - [X] This is a child line 3
+  - [ ] This is a child line 4
+
 "
 end