30 lines
822 B
Rust
30 lines
822 B
Rust
use handlebars::{Context, Handlebars, Helper, Output, RenderContext, RenderError};
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pub fn theme_option(
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h: &Helper,
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_r: &Handlebars,
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ctx: &Context,
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rc: &mut RenderContext,
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out: &mut Output,
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) -> Result<(), RenderError> {
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trace!("theme_option (handlebars helper)");
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let param = h
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.param(0)
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.and_then(|v| v.value().as_str())
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.ok_or(RenderError::new(
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"Param 0 with String type is required for theme_option helper.",
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))?;
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let theme_name = rc
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.evaluate_absolute(ctx, "default_theme", true)?
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.as_str()
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.ok_or_else(|| RenderError::new("Type error for `default_theme`, string expected"))?;
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out.write(param)?;
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if param.to_lowercase() == theme_name.to_lowercase() {
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out.write(" (default)")?;
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}
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Ok(())
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}
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