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Started to clean the 'previous' and 'next' handlebars helpers #26 But got stuck, waiting for a response

This commit is contained in:
Mathieu David 2015-08-03 22:09:26 +02:00
parent 91b0a99d81
commit a77fe94c02
8 changed files with 89 additions and 42 deletions
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4
book-example/book/README.html
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@ -42,9 +42,7 @@ Issues and feature requests can be posted on the <a href="https://github.com/aze
Doesn't seem to work: using JavaScript
alternative until I find a way to do it in the template
-->
<a href="" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
</a>
<!-- -->
<!-- -->

6
book-example/book/cli/build.html
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@ -49,9 +49,11 @@ current working directory.</p>
Doesn't seem to work: using JavaScript
alternative until I find a way to do it in the template
-->
<a href="../cli/init.html" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
<a href="null" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>null
</a>
<!-- -->
<!-- -->

6
book-example/book/cli/cli-tool.html
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@ -37,9 +37,11 @@ Let's focus on the command line tool capabilities first.</p>
Doesn't seem to work: using JavaScript
alternative until I find a way to do it in the template
-->
<a href="../README.html" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
<a href="null" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>null
</a>
<!-- -->
<!-- -->

6
book-example/book/cli/init.html
View File

@ -66,9 +66,11 @@ not create the corresponding files, init command should create the files for him
Doesn't seem to work: using JavaScript
alternative until I find a way to do it in the template
-->
<a href="../cli/cli-tool.html" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
<a href="null" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>null
</a>
<!-- -->
<!-- -->

6
book-example/book/format/config.html
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@ -48,9 +48,11 @@
Doesn't seem to work: using JavaScript
alternative until I find a way to do it in the template
-->
<a href="../cli/build.html" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
<a href="null" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>null
</a>
<!-- -->
<!-- -->

4
book-example/book/index.html
View File

@ -42,9 +42,7 @@ Issues and feature requests can be posted on the <a href="https://github.com/aze
Doesn't seem to work: using JavaScript
alternative until I find a way to do it in the template
-->
<a href="" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
</a>
<!-- -->
<!-- -->

81
src/renderer/html_handlebars/hbs_navigation_helper.rs
View File

@ -1,47 +1,88 @@
extern crate handlebars;
extern crate rustc_serialize;
use std::path::{PathBuf};
use std::path::{PathBuf, Path};
use std::collections::BTreeMap;
use self::rustc_serialize::json;
use self::handlebars::{Handlebars, RenderError, RenderContext, Helper, Context};
use self::rustc_serialize::json::{self, ToJson};
use self::handlebars::{Handlebars, RenderError, RenderContext, Helper, Context, Renderable};
// Handlebars helper for navigation
pub fn previous(c: &Context, _h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
pub fn previous(c: &Context, _h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
debug!("[fn]: previous (handlebars helper)");
debug!("[*]: Get data from context");
// get value from context data
// rc.get_path() is current json parent path, you should always use it like this
// param is the key of value you want to display
let chapters = c.navigate(rc.get_path(), "chapters");
let current = c.navigate(rc.get_path(), "path").to_string().replace("\"", "");
let path_to_root = c.navigate(rc.get_path(), "path_to_root").to_string().replace("\"", "");
try!(rc.writer.write(path_to_root.as_bytes()));
let current = c.navigate(rc.get_path(), "path")
.to_string()
.replace("\"", "");
let path_to_root = PathBuf::from(
c.navigate(rc.get_path(), "path_to_root")
.to_string()
.replace("\"", "")
);
debug!("[*]: Decode chapters from JSON");
// Decode json format
let decoded: Vec<BTreeMap<String,String>> = json::decode(&chapters.to_string()).unwrap();
let mut previous = PathBuf::from("");
let decoded: Vec<BTreeMap<String, String>> = json::decode(&chapters.to_string()).unwrap();
let mut previous: Option<BTreeMap<String, String>> = None;
debug!("[*]: Search for current Chapter");
// Search for current chapter and return previous entry
for item in decoded {
if let Some(path) = item.get("path") {
previous = if path.len() > 0 {
match item.get("path") {
Some(path) if path.len() > 0 => {
if path == &current {
previous.set_extension("html");
try!(rc.writer.write(previous.to_str().unwrap().as_bytes()));
debug!("[*]: Found current chapter");
if let Some(previous) = previous{
debug!("[*]: Creating BTreeMap to inject in context");
// Create new BTreeMap to extend the context: 'title' and 'link'
let mut previous_chapter = BTreeMap::new();
debug!("[*]: Inserting title: {}", previous.get("name").unwrap());
previous_chapter.insert("title".to_string(), previous.get("name").unwrap().to_json());
debug!("[*]: Inserting link: {}",
path_to_root.join(
Path::new(previous.get("path").unwrap())
.with_extension("html")
).to_str().unwrap());
previous_chapter.insert(
"link".to_string(),
path_to_root.join(
Path::new(previous.get("path").unwrap())
.with_extension("html")
).to_str().unwrap().to_json()
);
debug!("[*]: Inject in context");
// Inject in current context
c.extend(&previous_chapter);
debug!("[*]: Render template");
// Render template
_h.template().unwrap().render(c, r, rc).unwrap();
}
break;
}
PathBuf::from(path)
} else { previous }
else {
previous = Some(item.clone());
}
},
_ => continue,
}
}
Ok(())
}

4
src/theme/index.hbs
View File

@ -34,9 +34,11 @@
Doesn't seem to work: {{!#if (previous)}} using JavaScript
alternative until I find a way to do it in the template
-->
<a href="{{#previous}}{{/previous}}" class="nav-chapters previous">
{{#previous}}
<a href="{{link}}" class="nav-chapters previous">
<i class="fa fa-angle-left"></i>
</a>
{{/previous}}
<!-- {{!/if}} -->
<!-- {{!#if (next "")}} -->