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// This file is part of rss.
//
// Copyright © 2015-2017 The rust-syndication Developers
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the MIT License and/or Apache 2.0 License.
use error::Error;
use fromxml::FromXml;
use quick_xml::{Element, Event, XmlReader, XmlWriter};
use quick_xml::error::Error as XmlError;
use toxml::{ToXml, XmlWriterExt};
use url::Url;
/// A representation of the `<textInput>` element.
#[derive(Debug, Default, Clone, PartialEq)]
pub struct TextInput {
/// The label of the Submit button for the text input.
title: String,
/// A description of the text input.
description: String,
/// The name of the text object.
name: String,
/// The URL of the CGI script that processes the text input request.
link: String,
}
impl TextInput {
/// Get the title that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::{TextInputBuilder, TextInput};
///
/// let title = "Enter Comment";
///
/// let text_input = TextInputBuilder::new()
/// .title(title)
/// .link("http://www.example.com/feedback")
/// .finalize()
/// .unwrap();
///
/// assert_eq!(title, text_input.title());
/// ```
pub fn title(&self) -> &str {
self.title.as_str()
}
/// Get the description that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::{TextInputBuilder, TextInput};
///
/// let description = "Provided Feedback";
///
/// let text_input = TextInputBuilder::new()
/// .description(description)
/// .link("http://www.example.com/feedback")
/// .finalize()
/// .unwrap();
///
/// assert_eq!(description, text_input.description());
/// ```
pub fn description(&self) -> &str {
self.description.as_str()
}
/// Get the name that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::{TextInputBuilder, TextInput};
///
/// let name = "Comment";
///
/// let text_input = TextInputBuilder::new()
/// .name(name)
/// .link("http://www.example.com/feedback")
/// .finalize()
/// .unwrap();
///
/// assert_eq!(name, text_input.name());
/// ```
pub fn name(&self) -> &str {
self.name.as_str()
}
/// Get the link that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::{TextInputBuilder, TextInput};
///
/// let link = "http://www.example.com/feedback";
///
/// let text_input = TextInputBuilder::new()
/// .link(link)
/// .finalize()
/// .unwrap();
///
/// assert_eq!(link, text_input.link());
/// ```
pub fn link(&self) -> &str {
self.link.as_str()
}
}
impl FromXml for TextInput {
fn from_xml<R: ::std::io::BufRead>(mut reader: XmlReader<R>,
_: Element)
-> Result<(Self, XmlReader<R>), Error> {
let mut title = None;
let mut description = None;
let mut name = None;
let mut link = None;
while let Some(e) = reader.next() {
match e {
Ok(Event::Start(element)) => {
match element.name() {
b"title" => title = element_text!(reader),
b"description" => description = element_text!(reader),
b"name" => name = element_text!(reader),
b"link" => link = element_text!(reader),
_ => skip_element!(reader),
}
}
Ok(Event::End(_)) => {
let title = title.unwrap_or_default();
let description = description.unwrap_or_default();
let name = name.unwrap_or_default();
let link = link.unwrap_or_default();
return Ok((TextInput {
title: title,
description: description,
name: name,
link: link,
},
reader));
}
Err(err) => return Err(err.into()),
_ => {}
}
}
Err(Error::EOF)
}
}
impl ToXml for TextInput {
fn to_xml<W: ::std::io::Write>(&self, writer: &mut XmlWriter<W>) -> Result<(), XmlError> {
let element = Element::new("textInput");
writer.write(Event::Start(element.clone()))?;
writer.write_text_element(b"title", &self.title)?;
writer
.write_text_element(b"description", &self.description)?;
writer.write_text_element(b"name", &self.name)?;
writer.write_text_element(b"link", &self.link)?;
writer.write(Event::End(element))
}
}
/// This `TextInputBuilder` struct creates the `TextInput`.
#[derive(Debug, Clone, Default)]
pub struct TextInputBuilder {
title: String,
description: String,
name: String,
link: String,
}
impl TextInputBuilder {
/// Construct a new `TextInputBuilder` and return default values.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let text_input_builder = TextInputBuilder::new();
/// ```
pub fn new() -> TextInputBuilder {
TextInputBuilder::default()
}
/// Set the title that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let mut text_input_builder = TextInputBuilder::new();
/// text_input_builder.title("Title");
/// ```
pub fn title(mut self, title: &str) -> TextInputBuilder {
self.title = title.to_string();
self
}
/// Set the description that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let mut text_input_builder = TextInputBuilder::new();
/// text_input_builder.description("This is a test description.");
/// ```
pub fn description(mut self, description: &str) -> TextInputBuilder {
self.description = description.to_string();
self
}
/// Set the name that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let mut text_input_builder = TextInputBuilder::new();
/// text_input_builder.name("Comments");
/// ```
pub fn name(mut self, name: &str) -> TextInputBuilder {
self.name = name.to_string();
self
}
/// Set the link that exists under `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let mut text_input_builder = TextInputBuilder::new();
/// text_input_builder.link("http://www.example.com/feedback");
/// ```
pub fn link(mut self, link: &str) -> TextInputBuilder {
self.link = link.to_string();
self
}
/// Validate the contents of `TextInput`.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let text_input = TextInputBuilder::new()
/// .title("Title")
/// .description("This is a test description.")
/// .name("Comments")
/// .link("http://www.example.com/feedback")
/// .validate()
/// .unwrap()
/// .finalize()
/// .unwrap();
/// ```
pub fn validate(self) -> Result<TextInputBuilder, Error> {
Url::parse(self.link.as_str())?;
Ok(self)
}
/// Construct the `TextInput` from the `TextInputBuilder`.
///
/// # Examples
///
/// ```
/// use rss::TextInputBuilder;
///
/// let text_input = TextInputBuilder::new()
/// .title("Title")
/// .description("This is a test description.")
/// .name("Comments")
/// .link("http://www.example.com/feedback")
/// .finalize()
/// .unwrap();
/// ```
pub fn finalize(self) -> Result<TextInput, Error> {
Ok(TextInput {
title: self.title,
description: self.description,
name: self.name,
link: self.link,
})
}
}