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<?php
namespace Adi\JavaScript;
use Adi\JavaScript\Exception\InvalidFunctionNameException;
class JavaScript {
static private $id;
static public function __callStatic($method, $args) {
if ($method == 'JQuery') {
return new JQuery(@$args[0]);
} else if ($method == 'Sender') {
return new JQuery(Data::code('sender'));
}
$js = new self();
call_user_func_array(array($js, $method), $args);
return $js;
}
private $code = array();
private $functionName = NULL;
private $functionArguments = array();
private $confirmText = NULL;
private $onDocumentReady = false;
private $triggers = array();
private $setTimeout = 0;
function __construct() {
if ($this instanceof JavaScriptExtensionInterface) {
$this->addCode($this);
}
if (!self::$id) {
self::$id = rand(10000, 99999);
}
self::$id++;
}
public function asUrl() {
$result = $this->render(FALSE);
return "javascript:{$result}";
}
public function getUrl($readyToUse = false) {
if ($readyToUse) {
if (!$this->functionName) {
$this->makeFunction();
}
$this->dump();
}
if (!$this->functionName) {
throw new InvalidFunctionNameException('The script has not a function name. Call makeFunction() method first.');
}
return "javascript:{$this->functionName}(this);";
}
public function getHref() {
if (!$this->functionName) {
throw new InvalidFunctionNameException('The script has not a function name. Call makeFunction() method first.');
}
return "href='javascript:{$this->functionName}(this);'";
}
public function getEvent($event) {
if (!$this->functionName) {
throw new InvalidFunctionNameException('The script has not a function name. Call makeFunction() method first.');
}
return "{$event}='{$this->functionName}(this);'";
}
public function getCaller() {
if (!$this->functionName) {
throw new InvalidFunctionNameException('The script has not a function name. Call makeFunction() method first.');
}
return "{$this->functionName}(this)";
}
public function makeOnDocumentReady($value = true) {
$this->onDocumentReady = $value;
return $this;
}
public function makeConfirm($text) {
$this->confirmText = trim($text);
return $this;
}
public function makeTimeout($milliseconds) {
$this->setTimeout = $milliseconds;
return $this;
}
public function makeFunction($functionName = NULL, $functionArguments = NULL) {
if (!$functionName) {
self::$id++;
$functionName = "ajs" . self::$id . rand();
}
if ($functionArguments) {
if (!is_array($functionArguments)) {
$functionArguments = array($functionArguments);
}
}
$this->functionName = $functionName;
$this->functionArguments = $functionArguments;
return $this;
}
public function __call($method, $args) {
if ($method == 'JQuery') {
$jq = new JQuery(@$args[0]);
$this->addCode($jq);
return $jq;
}
$code = NULL;
foreach ($args as $arg) {
if ($code) {
$code .= ",";
}
Data::check($arg);
$code .= $arg->getData();
}
$code = "{$method}({$code});";
$this->code[] = $code;
return $this;
}
public function __toString() {
return $this->render();
}
public function addTrigger($selector, $event, $which = NULL) {
$this->triggers[] = array(
'selector' => $selector,
'event' => $event,
'which' => $which,
);
return $this;
}
public function addCode($code) {
$this->code[] = $code;
return $this;
}
public function dump() {
echo $this->render();
return $this;
}
public function render($isTag = true) {
$result = NULL;
if (count($this->triggers)) {
if (!$this->functionName) {
$this->makeFunction();
}
}
foreach ($this->code as $line) {
if ($line instanceof self) {
if ($line === $this) {
if ($line instanceof JavaScriptExtensionInterface) {
$line = $line->getScript();
} else {
$line = get_class($line);
$line = "/* Class '{$line}' not implements 'Adi\JavaScript\JavaScriptExtensionInterface' interface and cannot be rendered.*/\n";
}
} else {
$line = $line->render(false);
}
}
$result .= $line . "\n";
}
if ($this->confirmText) {
$this->coverConfirm($result);
}
if ($this->setTimeout) {
$this->coverTimeout($result);
}
if ($this->onDocumentReady) {
$this->coverDocumentReady($result);
}
if ($this->functionName) {
$this->coverFunction($result);
}
if (count($this->triggers)) {
$result .= $this->createTriggers();
}
$this->normalize($result);
if ($isTag) {
$result = "\n<script>\n{$result}\n</script>\n";
}
return $result;
}
private function normalize(& $code) {
$code = str_replace(array("\n\n", "\n\n\n"), "\n", $code);
for ($i = strlen($code); $i >= 0; $i--) {
if (substr($code, $i, 1) == ';') {
$code = substr_replace($code, '', $i, 1);
break;
}
}
for ($i = strlen($code); $i >= 0; $i--) {
if (substr($code, $i, 1) == "\n") {
$code = substr_replace($code, '', $i, 1);
break;
}
}
}
protected function createTriggers() {
$triggers = NULL;
foreach ($this->triggers as $trigger) {
$script = "{$this->functionName}();";
$selector = Data::string($trigger['selector'])->getData();
$event = Data::string($trigger['event'])->getData();
$which = @$trigger['which'];
if ($which !== NULL) {
$which = Data::mixed($which)->getData();
$script = "if (e.which == {$which}) { {$script} }";
}
$triggers .= "\n$({$selector}).bind({$event}, function(e) { {$script} } );\n";
}
if ($triggers) {
return "$(document).ready(function() {\n{$triggers}});";
}
}
protected function coverDocumentReady(& $code) {
$code = "$(document).ready(function() {\n{$code}});";
}
protected function coverTimeout(& $code) {
$code = "setTimeout(function(){{$code}\n}, {$this->setTimeout});\n";
}
protected function coverConfirm(& $code) {
$text = $this->confirmText;
Data::check($text);
$text = $text->getData();
$code = "if (confirm({$text})) {\n{$code}}" . "\n";
}
protected function coverFunction(& $code) {
$args = is_array(@$this->functionArguments) ? implode(',', $this->functionArguments) : 'sender';
$code = "\nfunction {$this->functionName}({$args}) {\n{$code}}\n";
}
}