May 2015

Brief Introduction to Remote Sensing (3/3): Landsat image conversion

Emirates Schools مدرستي الاماراتية Blog 22 May 2015

This is the third part of some basic definitions of remote sensing that are already in the user manual of the Semi-Automatic Classificatio...

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Brief Introduction to Remote Sensing (2/3): Supervised Classification Definitions

Emirates Schools مدرستي الاماراتية Blog 18 May 2015

This is the second part of some basic definitions about remote sensing that are already in the user manual of the Semi-Automatic Classific...

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Brief Introduction to Remote Sensing (1/3): Basic Definitions

Emirates Schools مدرستي الاماراتية Blog 13 May 2015

I am still working on the new tutorials about the Semi-Automatic Classification Plugin. In the meantime, I think it is useful to write some ...

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/*<![CDATA[*/ /* ============================================================ ملف JavaScript المتقدم - ثيم عربي احترافي مع حركات ============================================================ */ (function() { 'use strict'; /* ========================================================= 1. شاشة التحميل (Page Loader) ========================================================= */ function initLoader() { var loader = document.getElementById('page-loader'); if (!loader) return; window.addEventListener('load', function() { setTimeout(function() { loader.classList.add('hidden'); // إزالة الشاشة نهائياً بعد الانتهاء setTimeout(function() { if (loader && loader.parentNode) loader.parentNode.removeChild(loader); }, 600); }, 400); }); } /* ========================================================= 2. شريط تقدم القراءة (Reading Progress) ========================================================= */ function initReadingProgress() { var bar = document.getElementById('reading-progress'); if (!bar) { bar = document.createElement('div'); bar.id = 'reading-progress'; document.body.insertBefore(bar, document.body.firstChild); } window.addEventListener('scroll', function() { var scrollTop = window.pageYOffset || document.documentElement.scrollTop; var docHeight = document.documentElement.scrollHeight - window.innerHeight; var progress = docHeight > 0 ? scrollTop / docHeight : 0; bar.style.transform = 'scaleX(' + progress + ')'; }, { passive: true }); } /* ========================================================= 3. الهيدر اللاصق (Sticky Header) ========================================================= */ function initStickyHeader() { var headerBg = document.querySelector('.HeaderBg'); if (!headerBg) return; var lastScroll = 0; window.addEventListener('scroll', function() { var currentScroll = window.pageYOffset; if (currentScroll > 80) { headerBg.classList.add('scrolled'); } else { headerBg.classList.remove('scrolled'); } // إخفاء الهيدر عند التمرير للأسفل بسرعة if (currentScroll > lastScroll && currentScroll > 200) { headerBg.style.transform = 'translateY(-100%)'; } else { headerBg.style.transform = 'translateY(0)'; } lastScroll = currentScroll; }, { passive: true }); } /* ========================================================= 4. زر العودة للأعلى (Back to Top) ========================================================= */ function initBackToTop() { var btn = document.querySelector('.toTopB'); if (!btn) return; window.addEventListener('scroll', function() { if (window.pageYOffset > 400) { btn.classList.add('vsbl'); } else { btn.classList.remove('vsbl'); } }, { passive: true }); btn.addEventListener('click', function() { window.scrollTo({ top: 0, behavior: 'smooth' }); // تأثير الدوران عند النقر btn.style.transform = 'scale(1.2) rotate(360deg)'; setTimeout(function() { btn.style.transform = ''; }, 500); }); } /* ========================================================= 5. وضع الليل / النهار (Dark Mode) ========================================================= */ function initDarkMode() { // تطبيق الوضع المحفوظ if (localStorage.getItem('mode') === 'darkmode') { document.body.classList.add('dark-mode'); if (document.documentElement) document.documentElement.setAttribute('mode', 'dark'); } // زر تبديل الوضع var dmode = document.querySelector('.Dmode'); if (!dmode) return; dmode.addEventListener('click', function() { var isDark = document.body.classList.toggle('dark-mode'); document.documentElement.setAttribute('mode', isDark ? 'dark' : 'light'); localStorage.setItem('mode', isDark ? 'darkmode' : 'lightmode'); // تأثير تموج عند التبديل dmode.style.transform = 'scale(1.3) rotate(180deg)'; setTimeout(function() { dmode.style.transform = ''; }, 400); // إظهار تنبيه مؤقت showToast(isDark ? '🌙 الوضع الليلي مفعّل' : '☀️ الوضع النهاري مفعّل'); }); } /* ========================================================= 6. حركة العناصر عند التمرير (Scroll Animations) ========================================================= */ function initScrollAnimations() { // إضافة كلاس للعناصر القابلة للتحريك var selectors = [ '.posts', '.trelists', '#sidepar-wid .widget', '.post-amp', 'article.post-amp', '.headline', '.footer-col', '.author-profile', '#tocDiv', '.comment-plugin', '.Authors-plugin' ]; selectors.forEach(function(sel) { document.querySelectorAll(sel).forEach(function(el, i) { el.classList.add('animate-on-scroll'); el.style.transitionDelay = (i * 0.07) + 's'; }); }); function checkElements() { var windowHeight = window.innerHeight; document.querySelectorAll('.animate-on-scroll:not(.animated)').forEach(function(el) { var rect = el.getBoundingClientRect(); if (rect.top < windowHeight - 60) { el.classList.add('animated'); } }); } // تفعيل IntersectionObserver إذا كان متاحاً if ('IntersectionObserver' in window) { var observer = new IntersectionObserver(function(entries) { entries.forEach(function(entry) { if (entry.isIntersecting) { entry.target.classList.add('animated'); observer.unobserve(entry.target); } }); }, { threshold: 0.1, rootMargin: '0px 0px -60px 0px' }); document.querySelectorAll('.animate-on-scroll').forEach(function(el) { observer.observe(el); }); } else { window.addEventListener('scroll', checkElements, { passive: true }); checkElements(); } } /* ========================================================= 7. تأثير Ripple للأزرار ========================================================= */ function initRippleEffect() { var rippleSelectors = '.moreLink, .headline .Lapel-Link, a.Lapel-Link, .loadMore div, .blog-pager'; document.querySelectorAll(rippleSelectors).forEach(function(btn) { btn.classList.add('btn-ripple'); btn.addEventListener('click', function(e) { var rect = btn.getBoundingClientRect(); var ripple = document.createElement('span'); var size = Math.max(rect.width, rect.height); ripple.style.cssText = 'position:absolute;border-radius:50%;background:rgba(255,255,255,0.4);' + 'width:' + size + 'px;height:' + size + 'px;' + 'top:' + (e.clientY - rect.top - size/2) + 'px;' + 'left:' + (e.clientX - rect.left - size/2) + 'px;' + 'transform:scale(0);animation:ripple 0.6s linear;pointer-events:none;'; btn.appendChild(ripple); setTimeout(function() { ripple.remove(); }, 700); }); }); } /* ========================================================= 8. تحميل الصور الكسول (Lazy Loading) ========================================================= */ function initLazyLoad() { if (!window.LazyLoad && typeof LazyLoad === 'undefined') { // تنفيذ lazy load بسيط var imgObserver; if ('IntersectionObserver' in window) { imgObserver = new IntersectionObserver(function(entries, obs) { entries.forEach(function(entry) { if (entry.isIntersecting) { var img = entry.target; var src = img.getAttribute('data-src'); if (src) { img.src = src; img.removeAttribute('data-src'); img.closest('.Img-Holder') && img.closest('.Img-Holder').classList.add('Img-Loaded'); obs.unobserve(img); } } }); }, { rootMargin: '200px 0px' }); document.querySelectorAll('img[data-src]').forEach(function(img) { imgObserver.observe(img); }); } else { // Fallback لجميع الصور document.querySelectorAll('img[data-src]').forEach(function(img) { img.src = img.getAttribute('data-src'); img.removeAttribute('data-src'); }); } } } /* ========================================================= 9. تأثيرات الجسيمات في الخلفية (Particles) ========================================================= */ function initParticles() { var hero = document.querySelector('.HeaderBg'); if (!hero) return; // إنشاء 5 جسيمات بشكل دوري function createParticle() { var particle = document.createElement('div'); particle.className = 'particle'; var size = Math.random() * 6 + 3; particle.style.cssText = 'position:fixed;border-radius:50%;pointer-events:none;z-index:-1;' + 'width:' + size + 'px;height:' + size + 'px;' + 'background:rgba(124,58,237,' + (Math.random() * 0.3 + 0.1) + ');' + 'right:' + Math.random() * 100 + '%;' + 'bottom:' + Math.random() * 20 + '%;' + 'animation:particleFloat ' + (Math.random() * 3 + 2) + 's ease-in-out forwards;'; document.body.appendChild(particle); setTimeout(function() { particle.remove(); }, 5000); } setInterval(createParticle, 1500); } /* ========================================================= 10. إشعارات Toast ========================================================= */ function showToast(message, type) { type = type || 'info'; var toast = document.createElement('div'); var colors = { info: '#7c3aed', success: '#10b981', error: '#ef4444', warning: '#f59e0b' }; toast.style.cssText = 'position:fixed;bottom:90px;right:20px;' + 'background:' + (colors[type] || colors.info) + ';color:#fff;' + 'padding:12px 20px;border-radius:10px;font-size:13px;font-weight:700;' + 'box-shadow:0 4px 20px rgba(0,0,0,0.2);z-index:99999;direction:rtl;' + 'animation:fadeInRight 0.4s ease,fadeOutRight 0.4s ease 2.5s forwards;' + 'max-width:280px;line-height:1.4;'; toast.textContent = message; // إضافة keyframes إذا لم تكن موجودة if (!document.getElementById('toast-styles')) { var s = document.createElement('style'); s.id = 'toast-styles'; s.textContent = '@keyframes fadeOutRight{to{opacity:0;transform:translateX(100%)}}'; document.head.appendChild(s); } document.body.appendChild(toast); setTimeout(function() { toast.remove(); }, 3200); } // تعريف عالمي للاستخدام من الخارج window.showToast = showToast; /* ========================================================= 11. عداد الأرقام (Counter Animation) ========================================================= */ function initCounters() { document.querySelectorAll('.Stats .digit strong, [data-count]').forEach(function(el) { var target = parseInt(el.getAttribute('data-count') || el.textContent, 10); if (isNaN(target)) return; el.textContent = '0'; var obs = new IntersectionObserver(function(entries, obs) { if (!entries[0].isIntersecting) return; obs.unobserve(el); var start = 0, duration = 1500, step = target / (duration / 16); var timer = setInterval(function() { start += step; if (start >= target) { el.textContent = target.toLocaleString('ar'); clearInterval(timer); } else el.textContent = Math.floor(start).toLocaleString('ar'); }, 16); }, { threshold: 0.5 }); obs.observe(el); }); } /* ========================================================= 12. تأثير الكتابة (Typing Effect) للشريط الإخباري ========================================================= */ function initTypingEffect() { var titleEl = document.querySelector('.ShreetTitle'); if (!titleEl) return; var originalText = titleEl.textContent.trim(); titleEl.textContent = ''; titleEl.style.borderLeft = '2px solid rgba(255,255,255,0.7)'; var i = 0; function type() { if (i < originalText.length) { titleEl.textContent += originalText[i++]; setTimeout(type, 80); } else { titleEl.style.borderLeft = 'none'; } } setTimeout(type, 1000); } /* ========================================================= 13. تأثير Tilt للبطاقات ========================================================= */ function initTiltEffect() { document.querySelectorAll('.Sp-slide .posts, .Sp-posts1 .posts').forEach(function(card) { card.addEventListener('mousemove', function(e) { var rect = card.getBoundingClientRect(); var x = e.clientX - rect.left; var y = e.clientY - rect.top; var centerX = rect.width / 2; var centerY = rect.height / 2; var tiltX = ((y - centerY) / centerY) * 5; var tiltY = ((x - centerX) / centerX) * -5; card.style.transform = 'perspective(1000px) rotateX(' + tiltX + 'deg) rotateY(' + tiltY + 'deg) translateZ(5px)'; }); card.addEventListener('mouseleave', function() { card.style.transform = 'perspective(1000px) rotateX(0) rotateY(0) translateZ(0)'; card.style.transition = 'transform 0.5s ease'; }); }); } /* ========================================================= 14. نافذة مشاركة مخصصة (Custom Share) ========================================================= */ function initCustomShare() { document.querySelectorAll('[data-share]').forEach(function(btn) { btn.addEventListener('click', function(e) { e.preventDefault(); var type = btn.getAttribute('data-share'); var url = encodeURIComponent(window.location.href); var title = encodeURIComponent(document.title); var shareUrls = { facebook: 'https://www.facebook.com/sharer/sharer.php?u=' + url, twitter: 'https://twitter.com/intent/tweet?url=' + url + '&text=' + title, whatsapp: 'https://wa.me/?text=' + title + '%20' + url, telegram: 'https://t.me/share/url?url=' + url + '&text=' + title, linkedin: 'https://www.linkedin.com/shareArticle?url=' + url + '&title=' + title, pinterest:'https://pinterest.com/pin/create/button/?url=' + url + '&description=' + title }; if (shareUrls[type]) { window.open(shareUrls[type], '_blank', 'width=600,height=400'); } else if (type === 'copy') { if (navigator.clipboard) { navigator.clipboard.writeText(window.location.href).then(function() { showToast('✅ تم نسخ الرابط بنجاح!', 'success'); }); } } }); }); } /* ========================================================= 15. تحسين نموذج البحث ========================================================= */ function initSearchEnhancement() { var searchInputs = document.querySelectorAll('input[name="q"], #searchIn'); searchInputs.forEach(function(inp) { inp.addEventListener('focus', function() { inp.closest('.fxbox, .search-input') && inp.closest('.fxbox, .search-input').classList.add('focused'); }); inp.addEventListener('blur', function() { inp.closest('.fxbox, .search-input') && inp.closest('.fxbox, .search-input').classList.remove('focused'); }); // تصفية مقترحات البحث inp.addEventListener('keydown', function(e) { if (e.key === 'Escape') { var navC = document.getElementById('NavC'); if (navC) navC.checked = false; } }); }); } /* ========================================================= 16. تحريك الأعداد الإحصائية ========================================================= */ function initStatsAnimation() { document.querySelectorAll('.Stats .widget-content').forEach(function(el) { el.classList.add('animate-on-scroll'); }); } /* ========================================================= 17. تأثير بريق على الصور (Image Shine) ========================================================= */ function initImageShine() { document.querySelectorAll('.Sp-slide a.thumb, .Sp-posts4 .postnum0 a.thumb').forEach(function(img) { img.addEventListener('mouseenter', function() { var shine = document.createElement('div'); shine.style.cssText = 'position:absolute;top:0;left:-100%;width:60%;height:100%;' + 'background:linear-gradient(to right,transparent,rgba(255,255,255,0.25),transparent);' + 'transform:skewX(-20deg);transition:left 0.6s ease;pointer-events:none;z-index:5;'; img.style.overflow = 'hidden'; img.appendChild(shine); setTimeout(function() { shine.style.left = '150%'; }, 50); setTimeout(function() { if (shine.parentNode) shine.remove(); }, 700); }); }); } /* ========================================================= 18. تتبع إحصاءات التمرير ========================================================= */ function initScrollTracking() { var milestones = [25, 50, 75, 100]; var reached = {}; window.addEventListener('scroll', function() { var scrollTop = window.pageYOffset || document.documentElement.scrollTop; var docHeight = document.documentElement.scrollHeight - window.innerHeight; var percent = Math.round((scrollTop / docHeight) * 100); milestones.forEach(function(m) { if (percent >= m && !reached[m]) { reached[m] = true; // يمكن استخدامها مع Google Analytics if (typeof gtag !== 'undefined') { gtag('event', 'scroll', { 'event_category': 'engagement', 'event_label': m + '%' }); } } }); }, { passive: true }); } /* ========================================================= 19. رابط نسخ الرابط ========================================================= */ function initCopyLink() { document.querySelectorAll('[title="copyLink"], .copy-link').forEach(function(btn) { btn.addEventListener('click', function(e) { e.preventDefault(); if (navigator.clipboard) { navigator.clipboard.writeText(window.location.href).then(function() { showToast('✅ تم نسخ الرابط!', 'success'); }); } }); }); } /* ========================================================= 20. تحسين الصور بالتحميل التدريجي ========================================================= */ function initProgressiveImages() { document.querySelectorAll('img[data-src]').forEach(function(img) { img.style.filter = 'blur(5px)'; img.style.transition = 'filter 0.5s ease'; img.addEventListener('load', function() { img.style.filter = 'none'; var holder = img.closest('.Img-Holder'); if (holder) holder.classList.add('Img-Loaded'); }); }); } /* ========================================================= 21. تأثير الموج عند النقر على الروابط ========================================================= */ function initLinkHoverEffect() { document.querySelectorAll('nav ul li a, .mainmenu ul li .minlin').forEach(function(link) { link.addEventListener('mouseenter', function() { link.style.transition = 'all 0.3s cubic-bezier(0.34,1.56,0.64,1)'; }); }); } /* ========================================================= 22. التحقق من صحة نموذج الاتصال ========================================================= */ function initFormValidation() { document.querySelectorAll('#contact-form form, .comment-form').forEach(function(form) { form.addEventListener('submit', function(e) { var valid = true; form.querySelectorAll('input[required], textarea[required]').forEach(function(field) { if (!field.value.trim()) { field.style.borderColor = '#ef4444'; field.style.boxShadow = '0 0 0 3px rgba(239,68,68,0.15)'; valid = false; setTimeout(function() { field.style.borderColor = ''; field.style.boxShadow = ''; }, 3000); } }); if (!valid) { e.preventDefault(); showToast('⚠️ يرجى ملء جميع الحقول المطلوبة', 'warning'); } }); }); } /* ========================================================= 23. تعديل تاريخ المقالات لعرض "منذ X" ========================================================= */ function initRelativeTime() { if (typeof GetAgo === 'function') return; // موجودة بالفعل في القالب document.querySelectorAll('time[datetime]').forEach(function(el) { var dt = new Date(el.getAttribute('datetime')); var now = new Date(); var diff = Math.floor((now - dt) / 1000); var text; if (diff < 60) text = 'منذ قليل'; else if (diff < 3600) text = 'منذ ' + Math.floor(diff/60) + ' دقيقة'; else if (diff < 86400) text = 'منذ ' + Math.floor(diff/3600) + ' ساعة'; else if (diff < 2592000)text = 'منذ ' + Math.floor(diff/86400) + ' يوم'; else if (diff < 31536000)text = 'منذ ' + Math.floor(diff/2592000) + ' شهر'; else text = 'منذ ' + Math.floor(diff/31536000) + ' سنة'; el.textContent = text; el.title = dt.toLocaleDateString('ar'); }); } /* ========================================================= 24. تكبير الصور (Lightbox بسيط) ========================================================= */ function initLightbox() { document.querySelectorAll('.post-body img:not([data-no-lightbox])').forEach(function(img) { img.style.cursor = 'zoom-in'; img.addEventListener('click', function() { var overlay = document.createElement('div'); overlay.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,0.92);z-index:999999;' + 'display:flex;align-items:center;justify-content:center;' + 'animation:fadeInUp 0.3s ease;cursor:zoom-out;'; var bigImg = document.createElement('img'); bigImg.src = img.src; bigImg.style.cssText = 'max-width:90vw;max-height:90vh;border-radius:12px;' + 'box-shadow:0 20px 60px rgba(0,0,0,0.5);' + 'animation:scaleIn 0.3s ease;'; var closeBtn = document.createElement('button'); closeBtn.textContent = '✕'; closeBtn.style.cssText = 'position:absolute;top:20px;left:20px;background:rgba(255,255,255,0.2);' + 'border:none;color:#fff;font-size:24px;width:44px;height:44px;' + 'border-radius:50%;cursor:pointer;transition:all 0.3s;'; closeBtn.addEventListener('mouseenter', function() { this.style.background = 'rgba(255,255,255,0.3)'; }); closeBtn.addEventListener('mouseleave', function() { this.style.background = 'rgba(255,255,255,0.2)'; }); overlay.appendChild(bigImg); overlay.appendChild(closeBtn); document.body.appendChild(overlay); document.body.style.overflow = 'hidden'; function closeOverlay() { overlay.style.opacity = '0'; overlay.style.transition = 'opacity 0.3s'; setTimeout(function() { overlay.remove(); document.body.style.overflow = ''; }, 300); } closeBtn.addEventListener('click', closeOverlay); overlay.addEventListener('click', function(e) { if (e.target === overlay) closeOverlay(); }); document.addEventListener('keydown', function handler(e) { if (e.key === 'Escape') { closeOverlay(); document.removeEventListener('keydown', handler); } }); }); }); } /* ========================================================= 25. تأثيرات القائمة الجانبية للجوال ========================================================= */ function initMobileMenuEffects() { var navM = document.getElementById('NavM'); var sidenav = document.querySelector('.sidenav'); if (!navM || !sidenav) return; navM.addEventListener('change', function() { if (navM.checked) { document.body.style.overflow = 'hidden'; sidenav.querySelectorAll('.mainmenu ul li').forEach(function(li, i) { li.style.opacity = '0'; li.style.transform = 'translateX(20px)'; setTimeout(function() { li.style.transition = 'all 0.3s ease'; li.style.opacity = '1'; li.style.transform = 'translateX(0)'; }, i * 60 + 100); }); } else { document.body.style.overflow = ''; } }); } /* ========================================================= 26. تأثير النبض على أيقونات الشبكات الاجتماعية ========================================================= */ function initSocialIcons() { document.querySelectorAll('.social-static.social li .soca').forEach(function(icon) { icon.addEventListener('mouseenter', function() { icon.style.animation = 'wobble 0.5s ease'; }); icon.addEventListener('animationend', function() { icon.style.animation = ''; }); }); } /* ========================================================= 27. تأثير البحث الصوتي (اختياري) ========================================================= */ function initVoiceSearch() { if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) return; var searchInputs = document.querySelectorAll('input[name="q"]'); searchInputs.forEach(function(inp) { var micBtn = document.createElement('button'); micBtn.type = 'button'; micBtn.innerHTML = '🎤'; micBtn.style.cssText = 'background:none;border:none;font-size:16px;cursor:pointer;' + 'padding:0 5px;transition:transform 0.3s;'; micBtn.title = 'بحث صوتي'; inp.parentNode && inp.parentNode.appendChild(micBtn); var SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition; micBtn.addEventListener('click', function() { var recognition = new SpeechRecognition(); recognition.lang = 'ar-SA'; recognition.onresult = function(e) { inp.value = e.results[0][0].transcript; micBtn.innerHTML = '🎤'; micBtn.style.transform = ''; }; recognition.onstart = function() { micBtn.innerHTML = '🔴'; micBtn.style.transform = 'scale(1.3)'; showToast('🎤 جارٍ الاستماع...', 'info'); }; recognition.onerror = function() { micBtn.innerHTML = '🎤'; micBtn.style.transform = ''; }; recognition.start(); }); }); } /* ========================================================= 28. تحديث الرقم العائم لعدد الأقسام في القائمة ========================================================= */ function initLabelCounts() { document.querySelectorAll('.label-count').forEach(function(span) { var num = parseInt(span.textContent, 10); if (!isNaN(num) && num > 0) { span.title = num + ' مشاركة'; } }); } /* ========================================================= 29. تحسين أداء الـ Scroll مع requestAnimationFrame ========================================================= */ var ticking = false; function onScroll() { if (!ticking) { window.requestAnimationFrame(function() { // يمكن إضافة منطق هنا للعمليات الثقيلة ticking = false; }); ticking = true; } } /* ========================================================= 30. تهيئة جميع الوظائف ========================================================= */ function init() { initLoader(); initReadingProgress(); initStickyHeader(); initBackToTop(); initDarkMode(); initScrollAnimations(); initRippleEffect(); initLazyLoad(); initSearchEnhancement(); initSocialIcons(); initCopyLink(); initProgressiveImages(); initLinkHoverEffect(); initRelativeTime(); initCounters(); initFormValidation(); initLabelCounts(); // تأثيرات تُفعَّل بعد تحميل DOM if (document.readyState === 'complete' || document.readyState === 'interactive') { initTypingEffect(); initTiltEffect(); initImageShine(); initMobileMenuEffects(); setTimeout(initParticles, 2000); setTimeout(initLightbox, 500); setTimeout(initCustomShare, 300); setTimeout(initVoiceSearch, 1000); } else { document.addEventListener('DOMContentLoaded', function() { initTypingEffect(); initTiltEffect(); initImageShine(); initMobileMenuEffects(); setTimeout(initParticles, 2000); setTimeout(initLightbox, 500); setTimeout(initCustomShare, 300); setTimeout(initVoiceSearch, 1000); }); } window.addEventListener('scroll', onScroll, { passive: true }); } // تشغيل عند تحميل الصفحة if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', init); 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