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/*
* Ricochet - A minimalist CLI web browser for fast, distraction-free navigation.
* Copyright (C) 2026 Richard Qin
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "ricochet/render/renderer.hh"
#include "ricochet/render/input_renderer.hh"
#include "ricochet/render/internal.hh"
#include "ricochet/render/table_renderer.hh"
#include "ricochet/render/utils.hh"
namespace ricochet::render {
namespace {
void render_link_end( const parser::DomNode& node, RenderResult& result )
{
result.text += "\033[0m";
const std::string href = extract_attr( node.tag_name, "href" );
if ( !href.empty() && !href.starts_with( "javascript:" ) && !href.starts_with( "#" ) ) {
result.links.push_back( decode_entities( href ) );
result.text += "\033[8m{L:" + std::to_string( result.links.size() ) + "}\033[0m";
}
}
void render_img( const parser::DomNode& node, RenderResult& result )
{
std::size_t alt_pos = node.tag_name.find( "alt=\"" );
if ( alt_pos != std::string::npos ) {
alt_pos += 5;
const std::size_t alt_end = node.tag_name.find( '"', alt_pos );
result.text += " \033[90m[Image: " + node.tag_name.substr( alt_pos, alt_end - alt_pos ) + "]\033[0m ";
} else {
result.text += " \033[90m[IMAGE]\033[0m ";
}
}
} // namespace
void render_node( const parser::DomNode& node, RenderResult& result, FormContext ctx ) // NOLINT(misc-no-recursion)
{
std::string& output = result.text;
const std::size_t space_pos = node.tag_name.find( ' ' );
const std::string base_tag
= ( space_pos == std::string::npos ) ? node.tag_name : node.tag_name.substr( 0, space_pos );
if ( is_ignored_tag( base_tag ) ) {
return;
}
if ( base_tag.empty() ) {
output += decode_entities( node.text_content );
return;
}
if ( base_tag == "table" ) {
render_table( node, result, ctx );
return;
}
if ( base_tag == "form" ) {
ctx.action = extract_attr( node.tag_name, "action" );
ctx.method = extract_attr( node.tag_name, "method" );
}
const bool is_header = is_heading_tag( base_tag );
const bool is_link = ( base_tag == "a" );
const bool is_list_item = ( base_tag == "li" );
const bool is_input = ( base_tag == "input" || base_tag == "textarea" || base_tag == "button" );
if ( is_header ) {
output += "\n\n\033[1;31m";
} else if ( is_link ) {
output += "\033[4;34m";
} else if ( is_list_item ) {
output += "\n • ";
} else if ( is_input ) {
render_input_node( node, result, ctx, output );
} else if ( base_tag == "p" || base_tag == "div" || is_header ) {
if ( !output.empty() && output.back() != '\n' ) {
output += "\n";
}
}
for ( const auto& child : node.children ) {
render_node( child, result, ctx );
}
if ( is_header ) {
output += "\033[0m";
} else if ( is_link ) {
render_link_end( node, result );
}
if ( base_tag == "h1" || base_tag == "p" || base_tag == "div" ) {
output += "\n";
}
if ( base_tag == "img" ) {
render_img( node, result );
}
}
RenderResult Renderer::render( // NOLINT(readability-convert-member-functions-to-static)
const parser::DomNode& node ) const
{
RenderResult result;
render_node( node, result, FormContext {} );
return result;
}
} // namespace ricochet::render
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