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<?php |
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namespace League\Plates\Extension\RenderContext; |
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use League\Plates; |
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use League\Plates\Exception\FuncException; |
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function componentFunc($insert = null) { |
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$insert = $insert ?: insertFunc(); |
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return startBufferFunc(function(FuncArgs $args) use ($insert) { |
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if ($args->template()->get('component_slot_data') !== null) { |
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throw new FuncException('Cannot nest component func calls.'); |
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} |
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$args->template()->with('component_slot_data', []); |
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return function($contents) use ($insert, $args) { |
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list($name, $data) = $args->args; |
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$data = array_merge( |
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$data ?: [], |
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['slot' => $contents], |
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$args->template()->get('component_slot_data') |
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); |
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$insert($args->withArgs([$name, $data])); |
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$args->template()->with('component_slot_data', null); |
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}; |
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}); |
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} |
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function slotFunc() { |
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return startBufferFunc(function(FuncArgs $args) { |
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if ($args->template()->get('component_slot_data') === null) { |
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throw new FuncException('Cannot call slot func outside of component definition.'); |
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} |
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return function($contents) use ($args) { |
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$slot_data = $args->template()->get('component_slot_data'); |
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$slot_data[$args->args[0]] = $contents; |
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$args->template()->with('component_slot_data', $slot_data); |
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}; |
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}); |
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} |
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function startBufferFunc(callable $create_callback) { |
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return function(FuncArgs $args) use ($create_callback) { |
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$buffer_stack = $args->template()->get('buffer_stack') ?: []; |
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ob_start(); |
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$buffer_stack[] = [ob_get_level(), $create_callback($args)]; |
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$args->template()->with('buffer_stack', $buffer_stack); |
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}; |
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} |
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function endFunc() { |
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return function(FuncArgs $args) { |
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$buffer_stack = $args->template()->get('buffer_stack') ?: []; |
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if (!count($buffer_stack)) { |
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throw new FuncException('Cannot end a section definition because no section has been started.'); |
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} |
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list($ob_level, $callback) = array_pop($buffer_stack); |
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if ($ob_level != ob_get_level()) { |
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throw new FuncException('Output buffering level does not match when section was started.'); |
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} |
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$contents = ob_get_clean(); |
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$callback($contents); |
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$args->template()->with('buffer_stack', $buffer_stack); |
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}; |
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} |
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function insertFunc($echo = null) { |
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$echo = $echo ?: Plates\Util\phpEcho(); |
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return function(FuncArgs $args) use ($echo) { |
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list($name, $data) = $args->args; |
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$child = $args->template()->fork($name, $data ?: []); |
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$echo($args->render->renderTemplate($child)); |
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}; |
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} |
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function accessTemplatePropFunc($prop) { |
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return function(FuncArgs $args) use ($prop) { |
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return $args->template()->{$prop}; |
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}; |
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} |
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function escapeFunc($flags = ENT_COMPAT | ENT_HTML401, $encoding = 'UTF-8') { |
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return function(FuncArgs $args) use ($flags, $encoding) { |
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return htmlspecialchars($args->args[0], $flags, $encoding); |
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}; |
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} |
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function assertArgsFunc($num_required, $num_default = 0) { |
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return function(FuncArgs $args, $next) use ($num_required, $num_default) { |
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if (count($args->args) < $num_required) { |
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throw new FuncException("Func {$args->func_name} has {$num_required} argument(s)."); |
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} |
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if (count($args->args) >= $num_required + $num_default) { |
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return $next($args); |
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} |
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$args = $args->withArgs(array_merge($args->args, array_fill( |
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0, |
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$num_required + $num_default - count($args->args), |
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null |
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))); |
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return $next($args); |
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}; |
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} |
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function assertTemplateArgsFunc() { |
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return assertArgsFunc(1, 2); |
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} |
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/** Creates aliases for certain functions */ |
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function aliasNameFunc(array $aliases) { |
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return function(FuncArgs $args, $next) use ($aliases) { |
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if (!isset($aliases[$args->func_name])) { |
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return $next($args); |
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} |
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while (isset($aliases[$args->func_name])) { |
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$args = $args->withName($aliases[$args->func_name]); |
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} |
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return $next($args); |
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}; |
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} |
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/** Allows splitting of the handlers from the args name */ |
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function splitByNameFunc(array $handlers) { |
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return function(FuncArgs $args, $next) use ($handlers) { |
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$name = $args->func_name; |
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if (isset($handlers[$name])) { |
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$handler = Plates\Util\stackGroup($handlers[$name]); |
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return $handler($args, $next); |
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} |
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return $next($args); |
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}; |
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} |
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function notFoundFunc() { |
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return function(FuncArgs $args) { |
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throw new FuncException('The function ' . $args->func_name . ' does not exist.'); |
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}; |
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} |
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thephpleague /
plates
