Merge pull request #303 from budziq/clipboard

RFC - Initial implementation of clipboard handling

src/renderer/html_handlebars/hbs_renderer.rs

@@ -171,6 +171,7 @@ impl Renderer for HtmlHandlebars {
         book.write_file("highlight.css", &theme.highlight_css)?;
         book.write_file("tomorrow-night.css", &theme.tomorrow_night_css)?;
         book.write_file("highlight.js", &theme.highlight_js)?;
+        book.write_file("clipboard.min.js", &theme.clipboard_js)?;
         book.write_file("_FontAwesome/css/font-awesome.css", theme::FONT_AWESOME)?;
         book.write_file("_FontAwesome/fonts/fontawesome-webfont.eot", theme::FONT_AWESOME_EOT)?;
         book.write_file("_FontAwesome/fonts/fontawesome-webfont.svg", theme::FONT_AWESOME_SVG)?;

src/theme/book.css

@@ -827,3 +827,25 @@ table thead td {
     word-wrap: break-word /* Internet Explorer 5.5+ */;
   }
 }
+.tooltiptext {
+  position: absolute;
+  visibility: hidden;
+  color: #fff;
+  background-color: #333;
+  -webkit-transform: translateX(-50%);
+  -moz-transform: translateX(-50%);
+  -o-transform: translateX(-50%);
+  -ms-transform: translateX(-50%);
+  transform: translateX(-50%); /* Center by moving tooltip 50% of its width left */
+  left: -8px; /* Half of the width of the icon */
+  top: -35px;
+  font-size: 0.8em;
+  text-align: center;
+  border-radius: 6px;
+  padding: 5px 8px;
+  margin: 5px;
+  z-index: 1000;
+}
+.tooltipped .tooltiptext {
+  visibility: visible;
+}

src/theme/book.js

@@ -191,15 +191,41 @@ $( document ).ready(function() {
             buttons = pre_block.find(".buttons");
         }
         buttons.prepend("<i class=\"fa fa-play play-button\"></i>");
+        buttons.prepend("<i class=\"fa fa-copy clip-button\"><i class=\"tooltiptext\"></i></i>");
 
         buttons.find(".play-button").click(function(e){
             run_rust_code(pre_block);
         });
+        buttons.find(".clip-button").mouseout(function(e){
+            hideTooltip(e.currentTarget);
+        });
     });
 
+    var clipboardSnippets = new Clipboard('.clip-button', {
+        text: function(trigger) {
+            hideTooltip(trigger);
+            return trigger.parentElement.parentElement.textContent;
+        }
+    });
+    clipboardSnippets.on('success', function(e) {
+            e.clearSelection();
+            showTooltip(e.trigger, "Copied!");
+    });
+    clipboardSnippets.on('error', function(e) {
+            showTooltip(e.trigger, "Clipboard error!");
+    });
 
 });
 
+function hideTooltip(elem) {
+    elem.firstChild.innerText="";
+    elem.setAttribute('class', 'fa fa-copy clip-button');
+}
+
+function showTooltip(elem, msg) {
+    elem.firstChild.innerText=msg;
+    elem.setAttribute('class', 'fa fa-copy tooltipped');
+}
 
 function run_rust_code(code_block) {
     var result_block = code_block.find(".result");

src/theme/index.hbs

@@ -24,6 +24,14 @@
         <!-- MathJax -->
         <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
 
+        <!-- Fetch Clipboard.js from CDN but have a local fallback -->
+        <script src="https://cdn.jsdelivr.net/clipboard.js/1.6.1/clipboard.min.js"></script>
+        <script>
+            if (typeof Clipboard == 'undefined') {
+                document.write(unescape("%3Cscript src='clipboard.min.js'%3E%3C/script%3E"));
+            }
+        </script>
+
         <!-- Fetch JQuery from CDN but have a local fallback -->
         <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
         <script>

src/theme/mod.rs

@@ -11,6 +11,7 @@ pub static HIGHLIGHT_JS: &'static [u8] = include_bytes!("highlight.js");
 pub static TOMORROW_NIGHT_CSS: &'static [u8] = include_bytes!("tomorrow-night.css");
 pub static HIGHLIGHT_CSS: &'static [u8] = include_bytes!("highlight.css");
 pub static JQUERY: &'static [u8] = include_bytes!("jquery-2.1.4.min.js");
+pub static CLIPBOARD_JS: &'static [u8] = include_bytes!("clipboard.min.js");
 pub static FONT_AWESOME: &'static [u8] = include_bytes!("_FontAwesome/css/font-awesome.min.css");
 pub static FONT_AWESOME_EOT: &'static [u8] = include_bytes!("_FontAwesome/fonts/fontawesome-webfont.eot");
 pub static FONT_AWESOME_SVG: &'static [u8] = include_bytes!("_FontAwesome/fonts/fontawesome-webfont.svg");
@@ -36,6 +37,7 @@ pub struct Theme {
     pub highlight_css: Vec<u8>,
     pub tomorrow_night_css: Vec<u8>,
     pub highlight_js: Vec<u8>,
+    pub clipboard_js: Vec<u8>,
     pub jquery: Vec<u8>,
 }
 
@@ -51,6 +53,7 @@ impl Theme {
             highlight_css: HIGHLIGHT_CSS.to_owned(),
             tomorrow_night_css: TOMORROW_NIGHT_CSS.to_owned(),
             highlight_js: HIGHLIGHT_JS.to_owned(),
+            clipboard_js: CLIPBOARD_JS.to_owned(),
             jquery: JQUERY.to_owned(),
         };
 
@@ -91,6 +94,12 @@ impl Theme {
             let _ = f.read_to_end(&mut theme.highlight_js);
         }
 
+        // clipboard.js
+        if let Ok(mut f) = File::open(&src.join("clipboard.min.js")) {
+            theme.clipboard_js.clear();
+            let _ = f.read_to_end(&mut theme.clipboard_js);
+        }
+
         // highlight.css
         if let Ok(mut f) = File::open(&src.join("highlight.css")) {
             theme.highlight_css.clear();

src/theme/stylus/book.styl

@@ -8,3 +8,4 @@
 @import 'theme-popup'
 @import 'themes'
 @import 'print'
+@import 'tooltip'

src/theme/stylus/tooltip.styl

@@ -0,0 +1,18 @@
+.tooltiptext {
+  position: absolute;
+  visibility: hidden;
+  color: #fff;
+  background-color: #333;
+  transform: translateX(-50%);  /* Center by moving tooltip 50% of its width left */
+  left: -8px;   /* Half of the width of the icon */
+  top: -35px;
+  font-size: 0.8em;
+  text-align: center;
+  border-radius: 6px;
+  padding: 5px 8px;
+  margin: 5px;
+  z-index: 1000;
+}
+.tooltipped .tooltiptext {
+  visibility: visible;
+}