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Split the handlebars renderer in his own module because it was becoming large

This commit is contained in:
Mathieu David 2015-07-30 15:38:21 +02:00
parent 5bd1385212
commit 1a8c2259e5
2 changed files with 93 additions and 82 deletions
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87
src/renderer/html_handlebars/hbs_toc_helper.rs Normal file
View File

@ -0,0 +1,87 @@
extern crate handlebars;
extern crate rustc_serialize;
use std::path::Path;
use std::collections::BTreeMap;
use self::rustc_serialize::json;
use self::handlebars::{Handlebars, HelperDef, RenderError, RenderContext, Helper, Context};
// Handlebars helper to construct TOC
#[derive(Clone, Copy)]
pub struct RenderToc;
impl HelperDef for RenderToc {
fn call(&self, c: &Context, _h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
// 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 path_to_root = c.navigate(rc.get_path(), "path_to_root").to_string().replace("\"", "");
try!(rc.writer.write("<ul class=\"chapter\">".as_bytes()));
// Decode json format
let decoded: Vec<BTreeMap<String,String>> = json::decode(&chapters.to_string()).unwrap();
let mut current_level = 1;
for item in decoded {
let level = item.get("section").expect("Error: section should be Some(_)").len() / 2;
if level > current_level {
try!(rc.writer.write("<li>".as_bytes()));
try!(rc.writer.write("<ul class=\"section\">".as_bytes()));
try!(rc.writer.write("<li>".as_bytes()));
} else if level < current_level {
try!(rc.writer.write("</ul>".as_bytes()));
try!(rc.writer.write("<li>".as_bytes()));
}
else {
try!(rc.writer.write("<li>".as_bytes()));
}
// Link
let path_exists = if let Some(path) = item.get("path") {
if path.len() > 0 {
try!(rc.writer.write("<a href=\"".as_bytes()));
// Prefix with path to root
try!(rc.writer.write(path_to_root.as_bytes()));
// Add link
try!(rc.writer.write(
Path::new(
item.get("path")
.expect("Error: path should be Some(_)")
).with_extension("html")
.to_str().unwrap().as_bytes()
));
try!(rc.writer.write("\">".as_bytes()));
true
} else {
false
}
}else {
false
};
try!(rc.writer.write("<strong>".as_bytes()));
try!(rc.writer.write(item.get("section").expect("Error: section should be Some(_)").as_bytes()));
try!(rc.writer.write("</strong> ".as_bytes()));
try!(rc.writer.write(item.get("name").expect("Error: name should be Some(_)").as_bytes()));
if path_exists {
try!(rc.writer.write("</a>".as_bytes()));
}
try!(rc.writer.write("</li>".as_bytes()));
current_level = level;
}
try!(rc.writer.write("</ul>".as_bytes()));
Ok(())
}
}

88
src/renderer/html_handlebars.rs → src/renderer/html_handlebars/mod.rs
View File

@ -2,6 +2,9 @@ extern crate handlebars;
extern crate rustc_serialize;
extern crate pulldown_cmark;
mod hbs_toc_helper;
use self::hbs_toc_helper::RenderToc;
use renderer::Renderer;
use book::{BookItems, BookConfig};
use {theme, utils};
@ -12,8 +15,8 @@ use std::error::Error;
use std::io::{self, Read, Write};
use std::collections::BTreeMap;
use self::handlebars::{Handlebars, HelperDef, RenderError, RenderContext, Helper, Context, JsonRender};
use self::rustc_serialize::json::{self, Json, ToJson};
use self::handlebars::{Handlebars, JsonRender};
use self::rustc_serialize::json::{Json, ToJson};
use self::pulldown_cmark::{Parser, html};
pub struct HtmlHandlebars;
@ -47,7 +50,7 @@ impl Renderer for HtmlHandlebars {
try!(f.read_to_string(&mut content));
// Render markdown using the pulldown-cmark
// Render markdown using the pulldown-cmark crate
content = render_html(&content);
// Remove content from previous file and render content for this one
@ -211,82 +214,3 @@ fn render_html(text: &str) -> String {
html::push_html(&mut s, p);
s
}
// Handlebars helper to construct TOC
#[derive(Clone, Copy)]
struct RenderToc;
impl HelperDef for RenderToc {
fn call(&self, c: &Context, _h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
// 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 path_to_root = c.navigate(rc.get_path(), "path_to_root").to_string().replace("\"", "");
try!(rc.writer.write("<ul class=\"chapter\">".as_bytes()));
// Decode json format
let decoded: Vec<BTreeMap<String,String>> = json::decode(&chapters.to_string()).unwrap();
let mut current_level = 1;
for item in decoded {
let level = item.get("section").expect("Error: section should be Some(_)").len() / 2;
if level > current_level {
try!(rc.writer.write("<li>".as_bytes()));
try!(rc.writer.write("<ul class=\"section\">".as_bytes()));
try!(rc.writer.write("<li>".as_bytes()));
} else if level < current_level {
try!(rc.writer.write("</ul>".as_bytes()));
try!(rc.writer.write("<li>".as_bytes()));
}
else {
try!(rc.writer.write("<li>".as_bytes()));
}
// Link
let path_exists = if let Some(path) = item.get("path") {
if path.len() > 0 {
try!(rc.writer.write("<a href=\"".as_bytes()));
// Prefix with path to root
try!(rc.writer.write(path_to_root.as_bytes()));
// Add link
try!(rc.writer.write(
Path::new(
item.get("path")
.expect("Error: path should be Some(_)")
).with_extension("html")
.to_str().unwrap().as_bytes()
));
try!(rc.writer.write("\">".as_bytes()));
true
} else {
false
}
}else {
false
};
try!(rc.writer.write("<strong>".as_bytes()));
try!(rc.writer.write(item.get("section").expect("Error: section should be Some(_)").as_bytes()));
try!(rc.writer.write("</strong> ".as_bytes()));
try!(rc.writer.write(item.get("name").expect("Error: name should be Some(_)").as_bytes()));
if path_exists {
try!(rc.writer.write("</a>".as_bytes()));
}
try!(rc.writer.write("</li>".as_bytes()));
current_level = level;
}
try!(rc.writer.write("</ul>".as_bytes()));
Ok(())
}
}