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iTop/sources/application/UI/Base/UIBlock.php

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PHP

<?php
/**
* Copyright (C) 2013-2021 Combodo SARL
*
* This file is part of iTop.
*
* iTop is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* iTop 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
*/
namespace Combodo\iTop\Application\UI\Base;
use utils;
/**
* Class UIBlock
*
* @package Combodo\iTop\Application\UI
* @author Guillaume Lajarige <guillaume.lajarige@combodo.com>
* @internal
* @since 3.0.0
*/
abstract class UIBlock implements iUIBlock
{
/** @var string BLOCK_CODE The block code to use to generate the identifier, the CSS/JS prefixes, ...
*
* Should start "ibo-" for the iTop backoffice blocks, followed by the name of the block in lower case (eg. for a MyCustomBlock class,
* should be "ibo-my-custom-clock")
*/
public const BLOCK_CODE = 'ibo-block';
/** @var string|null */
public const DEFAULT_GLOBAL_TEMPLATE_REL_PATH = null;
/** @var string|null */
public const DEFAULT_HTML_TEMPLATE_REL_PATH = null;
/**
* @var array list of external JS file paths to include in the page. Paths are relative to APPROOT
* **Warning** : if you need to call a JS var defined in one of this file, then this calling code MUST be in {@see DEFAULT_JS_ON_READY_TEMPLATE_REL_PATH}
* and not in {@see DEFAULT_JS_TEMPLATE_REL_PATH} ! Indeed the later is output before external files loading.
*/
public const DEFAULT_JS_FILES_REL_PATH = [];
/** @var string|null */
public const DEFAULT_JS_TEMPLATE_REL_PATH = null;
/** @var string|null Relative path (from <ITOP>/templates/) to the JS template not deferred */
public const DEFAULT_JS_LIVE_TEMPLATE_REL_PATH = null;
/** @var string|null Relative path (from <ITOP>/templates/) to the JS template after DEFAULT_JS_TEMPLATE_REL_PATH */
public const DEFAULT_JS_ON_READY_TEMPLATE_REL_PATH = null;
/** @var array */
public const DEFAULT_CSS_FILES_REL_PATH = [];
/** @var string|null */
public const DEFAULT_CSS_TEMPLATE_REL_PATH = null;
/** @var bool */
public const DEFAULT_IS_HIDDEN = false;
/** @var array */
public const DEFAULT_ADDITIONAL_CSS_CLASSES = [];
/** @var string ENUM_BLOCK_FILES_TYPE_JS */
public const ENUM_BLOCK_FILES_TYPE_JS = 'js';
/** @var string ENUM_BLOCK_FILES_TYPE_CSS */
public const ENUM_BLOCK_FILES_TYPE_CSS = 'css';
/** @var string ENUM_BLOCK_FILES_TYPE_FILE */
public const ENUM_BLOCK_FILES_TYPE_FILES = 'files';
/** @var string ENUM_BLOCK_FILES_TYPE_TEMPLATE */
public const ENUM_BLOCK_FILES_TYPE_TEMPLATE = 'template';
/** @var array Cache for the CSS classes of a block inheritance. Key is the block class, value is an array of CSS classes */
private static $aBlocksInheritanceCSSClassesCache = [];
/** @var string $sId */
protected $sId;
/** @var string Relative path (from <ITOP>/templates/) to the "global" TWIG template which contains HTML, JS inline, JS files, CSS inline, CSS files. Should not be used too often as JS/CSS files would be duplicated making browser parsing time way longer. */
protected $sGlobalTemplateRelPath;
/** @var string Relative path (from <ITOP>/templates/) to the HTML template */
protected $sHtmlTemplateRelPath;
/** @var array Relative paths (from <ITOP>/templates/) to the JS templates (Live, on init., on ready) */
protected $aJsTemplatesRelPath;
/** @var string Relative path (from <ITOP>/templates/) to the CSS template */
protected $sCssTemplateRelPath;
/** @var array Relative paths (from <ITOP>/) to the JS files */
protected $aJsFilesRelPath;
/** @var array Relative paths (from <ITOP>/) to the CSS files */
protected $aCssFilesRelPath;
/** @var array Array <KEY> => <VALUE> which will be output as HTML data-xxx attributes (eg. data-<KEY>="<VALUE>") */
protected $aDataAttributes = [];
/** @var bool Whether the current block is shown or hidden */
protected $bIsHidden;
/** @var array Additional CSS classes to put on the block */
protected $aAdditionalCSSClasses;
/**
* UIBlock constructor.
*
* @param string|null $sId
*/
public function __construct(?string $sId = null)
{
$this->sId = $sId ?? $this->GenerateId();
$this->aJsFilesRelPath = static::DEFAULT_JS_FILES_REL_PATH;
$this->aCssFilesRelPath = static::DEFAULT_CSS_FILES_REL_PATH;
$this->sHtmlTemplateRelPath = static::DEFAULT_HTML_TEMPLATE_REL_PATH;
$this->aJsTemplatesRelPath[self::ENUM_JS_TYPE_LIVE] = static::DEFAULT_JS_LIVE_TEMPLATE_REL_PATH;
$this->aJsTemplatesRelPath[self::ENUM_JS_TYPE_ON_INIT] = static::DEFAULT_JS_TEMPLATE_REL_PATH;
$this->aJsTemplatesRelPath[self::ENUM_JS_TYPE_ON_READY] = static::DEFAULT_JS_ON_READY_TEMPLATE_REL_PATH;
$this->sCssTemplateRelPath = static::DEFAULT_CSS_TEMPLATE_REL_PATH;
$this->sGlobalTemplateRelPath = static::DEFAULT_GLOBAL_TEMPLATE_REL_PATH;
$this->bIsHidden = static::DEFAULT_IS_HIDDEN;
$this->aAdditionalCSSClasses = static::DEFAULT_ADDITIONAL_CSS_CLASSES;
}
/**
* @inheritDoc
*/
public function GetGlobalTemplateRelPath()
{
return $this->sGlobalTemplateRelPath;
}
/**
* @inheritDoc
*/
public function GetHtmlTemplateRelPath() {
return $this->sHtmlTemplateRelPath;
}
/**
* @inheritDoc
*/
public function GetJsTemplatesRelPath(string $sType) {
if (!in_array($sType, [self::ENUM_JS_TYPE_LIVE, self::ENUM_JS_TYPE_ON_INIT, self::ENUM_JS_TYPE_ON_READY])) {
throw new UIException($this, "Type of javascript $sType not supported");
}
return $this->aJsTemplatesRelPath[$sType];
}
/**
* @inheritDoc
* @used-by \Combodo\iTop\Application\UI\Base\UIBlock::GetFilesUrlRecursively
*/
public function GetJsFilesRelPaths() {
return $this->aJsFilesRelPath;
}
/**
* @inheritDoc
*/
public function GetCssTemplateRelPath()
{
return $this->sCssTemplateRelPath;
}
/**
* @inheritDoc
* @used-by \Combodo\iTop\Application\UI\Base\UIBlock::GetFilesUrlRecursively
*/
public function GetCssFilesRelPaths()
{
return $this->aCssFilesRelPath;
}
/**
* Return the block code of the object instance
*
* @return string
* @see static::BLOCK_CODE
*/
public function GetBlockCode()
{
return static::BLOCK_CODE;
}
/**
* @inheritDoc
*/
public function GetId()
{
return $this->sId;
}
/**
* @inheritDoc
* @return \Combodo\iTop\Application\UI\Base\iUIBlock[]
*/
public function GetSubBlocks()
{
return [];
}
/**
* @inheritDoc
* @return \Combodo\iTop\Application\UI\Base\iUIBlock[]
*/
public function GetDeferredBlocks(): array
{
return [];
}
/**
* @inheritDoc
* @throws \Exception
*/
public function GetJsFilesUrlRecursively(bool $bAbsoluteUrl = false)
{
return $this->GetFilesUrlRecursively(static::ENUM_BLOCK_FILES_TYPE_JS, $bAbsoluteUrl);
}
/**
* @inheritDoc
* @throws \Exception
*/
public function GetCssFilesUrlRecursively(bool $bAbsoluteUrl = false)
{
return $this->GetFilesUrlRecursively(static::ENUM_BLOCK_FILES_TYPE_CSS, $bAbsoluteUrl);
}
public function AddHtml(string $sHTML) {
// By default this does nothing
return $this;
}
public function GetParameters(): array {
return [];
}
/**
* @inheritDoc
*/
public function AddJsFileRelPath(string $sPath)
{
$this->aJsFilesRelPath[] = $sPath;
return $this;
}
/**
* @inheritDoc
*/
public function AddCssFileRelPath(string $sPath)
{
$this->aCssFilesRelPath[] = $sPath;
return $this;
}
/**
* **Warning**, this shouldn't generate any dot as this will be used in CSS and JQuery selectors !
*
* @return string a unique ID for the block
*/
protected function GenerateId()
{
$sUniqId = uniqid(static::BLOCK_CODE.'-', true);
$sUniqId = str_replace('.', '-', $sUniqId);
return $sUniqId;
}
/**
* Return an array of the URL of the block $sFilesType and its sub blocks.
* URL is relative unless the $bAbsoluteUrl is set to true.
*
* @param string $sFileType (see static::ENUM_BLOCK_FILES_TYPE_JS, static::ENUM_BLOCK_FILES_TYPE_CSS)
* @param bool $bAbsoluteUrl
*
* @return array
* @throws \Exception
*/
protected function GetFilesUrlRecursively(string $sFileType, bool $bAbsoluteUrl = false) {
$aFiles = [];
$sFilesRelPathMethodName = 'Get'.ucfirst($sFileType).'FilesRelPaths';
// Files from the block itself
foreach ($this->$sFilesRelPathMethodName() as $sFilePath) {
$aFiles[] = (($bAbsoluteUrl === true) ? utils::GetAbsoluteUrlAppRoot() : '').$sFilePath;
}
// Files from its sub blocks
foreach ($this->GetSubBlocks() as $sSubBlockName => $oSubBlock) {
/** @noinspection SlowArrayOperationsInLoopInspection */
$aFiles = array_merge(
$aFiles,
$oSubBlock->GetFilesUrlRecursively($sFileType, $bAbsoluteUrl)
);
}
return $aFiles;
}
/**
* Note: If $sCSSClass is already present, proceeds silently
*
* @param string $sCSSClass
*
* @return $this
*
* @uses $aAdditionalCSSClasses
*/
public function AddCSSClass(string $sCSSClass)
{
$sCSSClass = trim($sCSSClass);
if (!array_key_exists($sCSSClass, $this->aAdditionalCSSClasses)) {
$this->aAdditionalCSSClasses[] = $sCSSClass;
}
return $this;
}
/**
* Note: If $sCSSClass is not present, proceeds silently
*
* @param string $sCSSClass
*
* @return $this
*
* @uses $aAdditionalCSSClasses
*/
public function RemoveCSSClass(string $sCSSClass)
{
if (array_key_exists($sCSSClass, $this->aAdditionalCSSClasses)) {
unset($this->aAdditionalCSSClasses[$sCSSClass]);
}
return $this;
}
/**
* @param array $aCSSClasses like <code>['ibo-is-hidden', 'ibo-alert--body']</code>
*
* @return $this
*
* @uses $aAdditionalCSSClasses
*/
public function AddCSSClasses(array $aCSSClasses)
{
foreach ($aCSSClasses as $sCSSClass) {
if (!empty($sCSSClass)) {
$this->AddCSSClass($sCSSClass);
}
}
return $this;
}
/**
* Overrides additional classes with the specified value
*
* @param array $aCSSClasses like <code>['ibo-is-hidden', 'ibo-alert--body']</code>
*
* @return $this
*
* @uses $aAdditionalCSSClasses
*/
public function SetCSSClasses(array $aCSSClasses)
{
$this->aAdditionalCSSClasses = [];
$this->AddCSSClasses($aCSSClasses);
return $this;
}
/**
* @return array
*
* @uses $aAdditionalCSSClasses
* @see static::GetAdditionalCSSClassesAsString() for a simpler usage in the views
*/
public function GetAdditionalCSSClasses(): array
{
return $this->aAdditionalCSSClasses;
}
/**
* @return string All additional CSS classes as a spec-separated string
*
* @uses static::GetAdditionalCSSClasses()
*/
public function GetAdditionalCSSClassesAsString(): string
{
return implode(' ', $this->GetAdditionalCSSClasses());
}
/**
* @return string[] The identification CSS classes of the all the parent blocks of the current one
*/
public function GetBlocksInheritanceCSSClasses(): array
{
$sCurrentClass = static::class;
// Add to cache if not already there
if (false === array_key_exists($sCurrentClass, self::$aBlocksInheritanceCSSClassesCache)) {
// Start with self
$aCSSClasses = [static::BLOCK_CODE];
// Get class ONLY from parents that implement iUIBlock
foreach (class_parents(static::class) as $sParentClass) {
if (false === in_array(iUIBlock::class, class_implements($sParentClass))) {
continue;
}
$aCSSClasses[] = $sParentClass::BLOCK_CODE;
}
self::$aBlocksInheritanceCSSClassesCache[$sCurrentClass] = $aCSSClasses;
}
return self::$aBlocksInheritanceCSSClassesCache[$sCurrentClass];
}
/**
* @see static::GetBlocksInheritanceCSSClasses()
* @return string Same as the regular method but as a space separated string
*/
public function GetBlocksInheritanceCSSClassesAsString(): string
{
return implode(' ', $this->GetBlocksInheritanceCSSClasses());
}
/**
* @return array
*/
public function GetDataAttributes(): array
{
return $this->aDataAttributes;
}
/**
* @param array $aDataAttributes
*
* @return $this
*/
public function SetDataAttributes(array $aDataAttributes)
{
$this->aDataAttributes = $aDataAttributes;
return $this;
}
/**
* @param string $sName
* @param string $sValue
*
* @return $this
*/
public function AddDataAttribute(string $sName, string $sValue)
{
$this->aDataAttributes[$sName] = $sValue;
return $this;
}
/**
* @return bool
* @uses static::$aDataAttributes
*/
public function HasDataAttributes(): bool
{
return !empty($this->aDataAttributes);
}
/**
* @return bool
*/
public function IsHidden(): bool
{
return $this->bIsHidden;
}
/**
* @param bool $bIsHidden
*
* @return $this
*/
public function SetIsHidden(bool $bIsHidden)
{
$this->bIsHidden = $bIsHidden;
return $this;
}
}