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ThemeTrait.php
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ThemeTrait.php
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<?php
/**
* @package Gantry5
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2016 RocketTheme, LLC
* @license Dual License: MIT or GNU/GPLv2 and later
*
* http://opensource.org/licenses/MIT
* http://www.gnu.org/licenses/gpl-2.0.html
*
* Gantry Framework code that extends GPL code is considered GNU/GPLv2 and later
*/
namespace Gantry\Component\Theme;
use Gantry\Component\Config\Config;
use Gantry\Component\File\CompiledYamlFile;
use Gantry\Component\Filesystem\Folder;
use Gantry\Component\Gantry\GantryTrait;
use Gantry\Component\Layout\Layout;
use Gantry\Component\Stylesheet\CssCompilerInterface;
use Gantry\Component\Theme\ThemeDetails;
use Gantry\Framework\Base\Gantry;
use Gantry\Framework\Document;
use Gantry\Framework\Menu;
use Gantry\Framework\Services\ConfigServiceProvider;
use RocketTheme\Toolbox\File\PhpFile;
use RocketTheme\Toolbox\ResourceLocator\UniformResourceLocator;
/**
* Class ThemeTrait
* @package Gantry\Component
*
* @property string $path
* @property string $layout
*/
trait ThemeTrait
{
use GantryTrait;
protected $layoutObject;
protected $segments;
protected $preset;
protected $cssCache;
/**
* @var CssCompilerInterface
*/
protected $compiler;
protected $equalized = [3 => 33.3, 6 => 16.7, 7 => 14.3, 8 => 12.5, 9 => 11.1, 11 => 9.1, 12 => 8.3];
/**
* @var ThemeDetails
*/
protected $details;
/**
* Register Theme stream.
*
* @param string $savePath
*/
public function registerStream($savePath = null)
{
$streamName = $this->details()->addStreams();
/** @var UniformResourceLocator $locator */
$locator = self::gantry()['locator'];
$locator->addPath('gantry-theme', '', array_merge((array) $savePath, [[$streamName, '']]));
}
/**
* Update all CSS files in the theme.
*
* @param array $outlines
* @return array List of CSS warnings.
*/
public function updateCss(array $outlines = null)
{
$gantry = static::gantry();
$compiler = $this->compiler();
if (is_null($outlines)) {
/** @var UniformResourceLocator $locator */
$locator = $gantry['locator'];
$path = $locator->findResource($compiler->getTarget(), true, true);
// Make sure that all the CSS files get deleted.
if (is_dir($path)) {
Folder::delete($path, false);
}
$outlines = $gantry['outlines'];
}
// Make sure that PHP has the latest data of the files.
clearstatcache();
$warnings = [];
foreach ($outlines as $outline => $title) {
$config = ConfigServiceProvider::load($gantry, $outline);
$compiler->reset()->setConfiguration($outline)->setVariables($config->flatten('styles', '-'));
$results = $compiler->compileAll()->getWarnings();
if ($results) {
$warnings[$outline] = $results;
}
}
return $warnings;
}
/**
* Set layout to be used.
*
* @param string $name
* @param bool $force
* @return $this
*/
public function setLayout($name = null, $force = false)
{
$gantry = static::gantry();
// Force new layout to be set.
if ($force) {
unset($gantry['configuration']);
}
// Set default name only if configuration has not been set before.
if ($name === null && !isset($gantry['configuration'])) {
$name = 'default';
}
$outline = isset($gantry['configuration']) ? $gantry['configuration'] : null;
// Set configuration if given.
if ($name && $name != $outline) {
GANTRY_DEBUGGER && \Gantry\Debugger::addMessage("Using Gantry outline {$name}");
$gantry['configuration'] = $name;
}
return $this;
}
/**
* Get current preset.
*
* @param bool $forced If true, return only forced preset or null.
* @return string|null $preset
*/
public function preset($forced = false)
{
$presets = $this->presets()->toArray();
$preset = $this->preset;
if (!$preset && !$forced) {
$preset = static::gantry()['config']->get('styles.preset', '-undefined-');
}
if ($preset && !isset($presets[$preset])) {
$preset = null;
}
return $preset;
}
/**
* Set preset to be used.
*
* @param string $name
* @return $this
*/
public function setPreset($name = null)
{
// Set preset if given.
if ($name) {
$this->preset = $name;
}
return $this;
}
/**
* Return CSS compiler used in the theme.
*
* @return CssCompilerInterface
* @throws \RuntimeException
*/
public function compiler()
{
if (!$this->compiler) {
$compilerClass = (string) $this->details()->get('configuration.css.compiler', '\Gantry\Component\Stylesheet\ScssCompiler');
if (!class_exists($compilerClass)) {
throw new \RuntimeException('CSS compiler used by the theme not found');
}
$details = $this->details();
/** @var CssCompilerInterface $compiler */
$this->compiler = new $compilerClass();
$this->compiler
->setTarget($details->get('configuration.css.target'))
->setPaths($details->get('configuration.css.paths'))
->setFiles($details->get('configuration.css.files'))
->setFonts($details->get('configuration.fonts'));
}
$preset = $this->preset(true);
if ($preset) {
$this->compiler->setConfiguration($preset);
} else {
$gantry = static::gantry();
$this->compiler->setConfiguration(isset($gantry['configuration']) ? $gantry['configuration'] : 'default');
}
return $this->compiler->reset();
}
/**
* Returns URL to CSS file.
*
* If file does not exist, it will be created by using CSS compiler.
*
* @param string $name
* @return string
*/
public function css($name)
{
if (!isset($this->cssCache[$name])) {
$compiler = $this->compiler();
if ($compiler->needsCompile($name, [$this, 'getCssVariables'])) {
GANTRY_DEBUGGER && \Gantry\Debugger::startTimer("css-{$name}", "Compiling CSS: {$name}") && \Gantry\Debugger::addMessage("Compiling CSS: {$name}");
$compiler->compileFile($name);
GANTRY_DEBUGGER && \Gantry\Debugger::stopTimer("css-{$name}");
}
$this->cssCache[$name] = $compiler->getCssUrl($name);
}
return $this->cssCache[$name];
}
public function getCssVariables()
{
if ($this->preset) {
$variables = $this->presets()->flatten($this->preset . '.styles', '-');
} else {
$gantry = self::gantry();
$variables = $gantry['config']->flatten('styles', '-');
}
return $variables;
}
/**
* Returns style presets for the theme.
*
* @return Config
*/
public function presets()
{
static $presets;
if (!$presets) {
$gantry = static::gantry();
/** @var UniformResourceLocator $locator */
$locator = $gantry['locator'];
$filename = $locator->findResource("gantry-theme://gantry/presets.yaml");
$file = CompiledYamlFile::instance($filename);
$presets = new Config($file->content());
$file->free();
}
return $presets;
}
/**
* Return name of the used layout preset.
*
* @return string
* @throws \RuntimeException
*/
public function type()
{
if (!$this->layoutObject) {
throw new \RuntimeException('Function called too early');
}
$name = isset($this->layoutObject->preset['name']) ? $this->layoutObject->preset['name'] : 'unknown';
return $name;
}
/**
* Load current layout and its configuration.
*
* @param string $name
* @return Layout
* @throws \LogicException
*/
public function loadLayout($name = null)
{
if (!$name) {
try {
$name = static::gantry()['configuration'];
} catch (\Exception $e) {
throw new \LogicException('Gantry: Outline has not been defined yet', 500);
}
}
if (!isset($this->layoutObject) || $this->layoutObject->name != $name) {
$layout = Layout::instance($name);
if (!$layout->exists()) {
$layout = Layout::instance('default');
}
// TODO: Optimize
$this->layoutObject = $layout->init();
}
return $this->layoutObject;
}
/**
* Check whether layout has content bock.
*
* @return bool
*/
public function hasContent()
{
$layout = $this->loadLayout();
$content = $layout->referencesByType('system', 'content');
return !empty($content);
}
/**
* Returns all non-empty segments from the layout.
*
* @return array
*/
public function segments()
{
if (!isset($this->segments)) {
$this->segments = $this->loadLayout()->toArray();
GANTRY_DEBUGGER && \Gantry\Debugger::startTimer('segments', "Preparing layout");
$this->prepareLayout($this->segments);
GANTRY_DEBUGGER && \Gantry\Debugger::stopTimer('segments');
}
return $this->segments;
}
/**
* Prepare layout for rendering. Initializes all CSS/JS in particles.
*/
public function prepare()
{
$this->segments();
}
/**
* Returns details of the theme.
*
* @return ThemeDetails
*/
public function details()
{
if (!$this->details) {
$this->details = new ThemeDetails($this->name);
}
return $this->details;
}
/**
* Returns configuration of the theme.
*
* @return array
*/
public function configuration()
{
return (array) $this->details()['configuration'];
}
/**
* Function to convert block sizes into CSS classes.
*
* @param $text
* @return string
*/
public function toGrid($text)
{
if (!$text) {
return '';
}
$number = round($text, 1);
$number = max(5, $number);
$number = (string) ($number == 100 ? 100 : min(95, $number));
static $sizes = array(
'33.3' => 'size-33-3',
'16.7' => 'size-16-7',
'14.3' => 'size-14-3',
'12.5' => 'size-12-5',
'11.1' => 'size-11-1',
'9.1' => 'size-9-1',
'8.3' => 'size-8-3'
);
return isset($sizes[$number]) ? ' ' . $sizes[$number] : 'size-' . (int) $number;
}
/**
* Magic setter method
*
* @param mixed $offset Asset name value
* @param mixed $value Asset value
*/
public function __set($offset, $value)
{
if ($offset == 'title') {
$offset = 'name';
}
$this->details()->offsetSet('details.' . $offset, $value);
}
/**
* Magic getter method
*
* @param mixed $offset Asset name value
* @return mixed Asset value
*/
public function __get($offset)
{
if ($offset == 'title') {
$offset = 'name';
}
$value = $this->details()->offsetGet('details.' . $offset);
if ($offset == 'version' && is_int($value)) {
$value .= '.0';
}
return $value;
}
/**
* Magic method to determine if the attribute is set
*
* @param mixed $offset Asset name value
* @return boolean True if the value is set
*/
public function __isset($offset)
{
if ($offset == 'title') {
$offset = 'name';
}
return $this->details()->offsetExists('details.' . $offset);
}
/**
* Magic method to unset the attribute
*
* @param mixed $offset The name value to unset
*/
public function __unset($offset)
{
if ($offset == 'title') {
$offset = 'name';
}
$this->details()->offsetUnset('details.' . $offset);
}
/**
* Prepare layout by loading all the positions and particles.
*
* Action is needed before displaying the layout as it recalculates block widths based on the visible content.
*
* @param array $items
* @param bool $temporary
* @param bool $sticky
* @internal
*/
protected function prepareLayout(array &$items, $temporary = false, $sticky = false)
{
foreach ($items as $i => &$item) {
// Non-numeric items are meta-data which should be ignored.
if (((string)(int) $i !== (string) $i) || !is_object($item)) {
continue;
}
if (!empty($item->children)) {
$fixed = true;
foreach ($item->children as $child) {
$fixed &= !empty($child->attributes->fixed);
}
$this->prepareLayout($item->children, $fixed, $temporary);
}
// TODO: remove hard coded types.
switch ($item->type) {
case 'system':
break;
case 'atom':
case 'particle':
case 'position':
case 'spacer':
GANTRY_DEBUGGER && \Gantry\Debugger::startTimer($item->id, "Rendering {$item->id}");
$item->content = $this->renderContent($item, ['prepare_layout' => true]);
// Note that content can also be null (postpone rendering).
if ($item->content === '') {
unset($items[$i]);
}
GANTRY_DEBUGGER && \Gantry\Debugger::stopTimer($item->id);
break;
default:
if ($sticky) {
$item->attributes->sticky = 1;
break;
}
if (empty($item->children)) {
unset($items[$i]);
break;
}
$dynamicSize = 0;
$fixedSize = 0;
$childrenCount = count($item->children);
foreach ($item->children as $child) {
if (!isset($child->attributes->size)) {
$child->attributes->size = 100 / count($item->children);
}
if (empty($child->attributes->fixed)) {
$dynamicSize += $child->attributes->size;
} else {
$fixedSize += $child->attributes->size;
}
}
$roundSize = round($dynamicSize, 1);
$equalized = isset($this->equalized[$childrenCount]) ? $this->equalized[$childrenCount] : 0;
// force-casting string for testing comparison due to weird PHP behavior that returns wrong result
if ($roundSize != 100 && (string) $roundSize != (string) ($equalized * $childrenCount)) {
$fraction = 0;
$multiplier = (100 - $fixedSize) / ($dynamicSize ?: 1);
foreach ($item->children as $child) {
if (!empty($child->attributes->fixed)) {
continue;
}
// Calculate size for the next item by taking account the rounding error from the last item.
// This will allow us to approximate cumulating error and fix it when rounding error grows
// over the rounding treshold.
$size = ($child->attributes->size * $multiplier) + $fraction;
$newSize = round($size);
$fraction = $size - $newSize;
$child->attributes->size = $newSize;
}
}
}
}
}
/**
* Renders individual content block, like particle or position.
*
* Function is used to pre-render content.
*
* @param object|array $item
* @param array $options
* @return string|null
*/
protected function renderContent($item, $options = [])
{
if (is_array($item)) {
$item = (object) $item;
}
$gantry = static::gantry();
$subtype = $item->subtype;
$enabled = $gantry['config']->get("particles.{$subtype}.enabled", 1);
$cached = false;
if (!$enabled) {
return '';
}
$particle = $gantry['config']->getJoined("particles.{$subtype}", $item->attributes);
$extra = [];
if (isset($particle['caching'])) {
$caching = $particle['caching'] + ['type' => 'dynamic'];
switch ($caching['type']) {
case 'static':
$cached = true;
break;
case 'config_matches':
if (isset($particle['caching']['values'])) {
$values = (array) $particle['caching']['values'];
$compare = array_intersect_key($particle, $values);
$cached = ($values === $compare);
}
break;
case 'menu':
/** @var Menu $menu */
$menu = $gantry['menu'];
$active = $menu->getCacheId();
$cached = true;
$extra = ['_active_menu_item' => $active];
break;
}
}
/** @var Document $document */
$document = $gantry['document'];
if ($cached) {
/** @var UniformResourceLocator $locator */
$locator = $gantry['locator'];
$key = md5(json_encode($particle + $extra));
$filename = $locator->findResource("gantry-cache://theme/html/{$key}.php", true, true);
$file = PhpFile::instance($filename);
if ($file->exists()) {
$content = $file->content();
// Set HTML and assets from the cache.
$html = $content['html'];
$document->appendHeaderTags($content['assets']);
}
}
if (!isset($html)) {
if (isset($file)) {
// Create new document context for assets.
$document->push();
}
$context = $this->getContext(['segment' => $item, 'enabled' => 1, 'particle' => $particle] + $options);
$html = trim($this->render("@nucleus/content/{$item->type}.html.twig", $context));
if (isset($file)) {
// Restore upper level context and save HTML and assets into the cache.
$assets = $document->pop();
$document->appendHeaderTags($assets);
$file->save(['html' => $html, 'assets' => $assets]);
}
}
return !strstr($html, '@@DEFERRED@@') ? $html : null;
}
}