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Versions: 6
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Contents
# Extends ExecJSRenderer for the Rails environment
# - builds JS code out of the asset pipeline
# - stringifies props
# - implements console replay
module React
module ServerRendering
class SprocketsRenderer < ExecJSRenderer
def initialize(options={})
@replay_console = options.fetch(:replay_console, true)
filenames = options.fetch(:files, ["react.js", "components.js"])
js_code = CONSOLE_POLYFILL.dup
filenames.each do |filename|
js_code << ::Rails.application.assets[filename].to_s
end
super(options.merge(code: js_code))
end
def render(component_name, props, prerender_options)
# pass prerender: :static to use renderToStaticMarkup
react_render_method = if prerender_options == :static
"renderToStaticMarkup"
else
"renderToString"
end
if !props.is_a?(String)
props = props.to_json
end
super(component_name, props, {render_function: react_render_method})
end
def after_render(component_name, props, prerender_options)
@replay_console ? CONSOLE_REPLAY : ""
end
# Reimplement console methods for replaying on the client
CONSOLE_POLYFILL = <<-JS
var console = { history: [] };
['error', 'log', 'info', 'warn'].forEach(function (fn) {
console[fn] = function () {
console.history.push({level: fn, arguments: Array.prototype.slice.call(arguments)});
};
});
JS
# Replay message from console history
CONSOLE_REPLAY = <<-JS
(function (history) {
if (history && history.length > 0) {
result += '\\n<scr'+'ipt>';
history.forEach(function (msg) {
result += '\\nconsole.' + msg.level + '.apply(console, ' + JSON.stringify(msg.arguments) + ');';
});
result += '\\n</scr'+'ipt>';
}
})(console.history);
JS
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems