Browse Source
Reviewed-on: https://gitea.anomalistdesign.com/trent_larson/crowd-funder-for-time-pwa/pulls/182pull/186/head
20 changed files with 388 additions and 17 deletions
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package app.timesafari.safearea; |
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import android.os.Build; |
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import android.view.WindowInsets; |
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import com.getcapacitor.JSObject; |
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import com.getcapacitor.Plugin; |
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import com.getcapacitor.PluginCall; |
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import com.getcapacitor.PluginMethod; |
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import com.getcapacitor.annotation.CapacitorPlugin; |
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@CapacitorPlugin(name = "SafeArea") |
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public class SafeAreaPlugin extends Plugin { |
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@PluginMethod |
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public void getSafeAreaInsets(PluginCall call) { |
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JSObject result = new JSObject(); |
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) { |
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WindowInsets insets = getActivity().getWindow().getDecorView().getRootWindowInsets(); |
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if (insets != null) { |
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int top = insets.getInsets(WindowInsets.Type.statusBars()).top; |
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int bottom = insets.getInsets(WindowInsets.Type.navigationBars()).bottom; |
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int left = insets.getInsets(WindowInsets.Type.systemBars()).left; |
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int right = insets.getInsets(WindowInsets.Type.systemBars()).right; |
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result.put("top", top); |
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result.put("bottom", bottom); |
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result.put("left", left); |
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result.put("right", right); |
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call.resolve(result); |
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return; |
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} |
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} |
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// Fallback values
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result.put("top", 0); |
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result.put("bottom", 0); |
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result.put("left", 0); |
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result.put("right", 0); |
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call.resolve(result); |
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} |
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} |
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/** |
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* Safe Area Inset Injection for Android WebView |
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* |
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* This script injects safe area inset values into CSS environment variables |
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* when running in Android WebView, since Android doesn't natively support |
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* CSS env(safe-area-inset-*) variables like iOS does. |
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*/ |
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// Check if we're running in Android WebView with Capacitor
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const isAndroidWebView = () => { |
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// Check if we're on iOS - if so, skip this script entirely
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const isIOS = |
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/iPad|iPhone|iPod/.test(navigator.userAgent) || |
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(navigator.platform === "MacIntel" && navigator.maxTouchPoints > 1); |
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if (isIOS) { |
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return false; |
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} |
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// Check if we're on Android
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const isAndroid = /Android/.test(navigator.userAgent); |
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// Check if we have Capacitor (required for Android WebView)
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const hasCapacitor = window.Capacitor !== undefined; |
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// Only run on Android with Capacitor
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return isAndroid && hasCapacitor; |
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}; |
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// Wait for Capacitor to be available
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const waitForCapacitor = () => { |
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return new Promise((resolve) => { |
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if (window.Capacitor) { |
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resolve(window.Capacitor); |
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return; |
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} |
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// Wait for Capacitor to be available
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const checkCapacitor = () => { |
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if (window.Capacitor) { |
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resolve(window.Capacitor); |
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} else { |
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setTimeout(checkCapacitor, 100); |
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} |
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}; |
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checkCapacitor(); |
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}); |
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}; |
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// Inject safe area inset values into CSS custom properties
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const injectSafeAreaInsets = async () => { |
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try { |
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// Wait for Capacitor to be available
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const Capacitor = await waitForCapacitor(); |
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// Try to get safe area insets using StatusBar plugin (which is already available)
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let top = 0, |
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bottom = 0, |
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left = 0, |
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right = 0; |
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try { |
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// Use StatusBar plugin to get status bar height
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if (Capacitor.Plugins.StatusBar) { |
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const statusBarInfo = await Capacitor.Plugins.StatusBar.getInfo(); |
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// Status bar height is typically the top safe area inset
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top = statusBarInfo.overlays ? 0 : statusBarInfo.height || 0; |
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} |
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} catch (error) { |
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// Status bar info not available, will use fallback
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} |
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// Detect navigation bar and gesture bar heights
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const detectNavigationBar = () => { |
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const screenHeight = window.screen.height; |
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const screenWidth = window.screen.width; |
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const windowHeight = window.innerHeight; |
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const devicePixelRatio = window.devicePixelRatio || 1; |
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// Calculate navigation bar height
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let navBarHeight = 0; |
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// Method 1: Direct comparison (most reliable)
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if (windowHeight < screenHeight) { |
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navBarHeight = screenHeight - windowHeight; |
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} |
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// Method 2: Check for gesture navigation indicators
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if (navBarHeight === 0) { |
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// Look for common gesture navigation patterns
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const isTallDevice = screenHeight > 2000; |
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const isModernDevice = screenHeight > 1800; |
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const hasHighDensity = devicePixelRatio >= 2.5; |
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if (isTallDevice && hasHighDensity) { |
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// Modern gesture-based device
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navBarHeight = 12; // Typical gesture bar height
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} else if (isModernDevice) { |
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// Modern device with traditional navigation
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navBarHeight = 48; // Traditional navigation bar height
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} |
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} |
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// Method 3: Check visual viewport (more accurate for WebView)
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if (navBarHeight === 0) { |
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if (window.visualViewport) { |
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const visualHeight = window.visualViewport.height; |
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if (visualHeight < windowHeight) { |
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navBarHeight = windowHeight - visualHeight; |
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} |
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} |
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} |
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// Method 4: Device-specific estimation based on screen dimensions
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if (navBarHeight === 0) { |
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// Common Android navigation bar heights in pixels
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const commonNavBarHeights = { |
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"1080x2400": 48, // Common 1080p devices
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"1440x3200": 64, // QHD devices
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"720x1600": 32, // HD devices
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}; |
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const resolution = `${screenWidth}x${screenHeight}`; |
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const estimatedHeight = commonNavBarHeights[resolution]; |
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if (estimatedHeight) { |
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navBarHeight = estimatedHeight; |
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} else { |
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// Fallback: estimate based on screen height
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navBarHeight = screenHeight > 2000 ? 48 : 32; |
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} |
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} |
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return navBarHeight; |
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}; |
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// Get navigation bar height
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bottom = detectNavigationBar(); |
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// If we still don't have a top value, estimate it
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if (top === 0) { |
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const screenHeight = window.screen.height; |
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// Common status bar heights: 24dp (48px) for most devices, 32dp (64px) for some
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top = screenHeight > 1920 ? 64 : 48; |
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} |
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// Left/right safe areas are rare on Android
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left = 0; |
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right = 0; |
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// Create CSS custom properties
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const style = document.createElement("style"); |
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style.textContent = ` |
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:root { |
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--safe-area-inset-top: ${top}px; |
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--safe-area-inset-bottom: ${bottom}px; |
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--safe-area-inset-left: ${left}px; |
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--safe-area-inset-right: ${right}px; |
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} |
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`;
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// Inject the style into the document head
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document.head.appendChild(style); |
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// Also set CSS environment variables if supported
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if (CSS.supports("env(safe-area-inset-top)")) { |
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document.documentElement.style.setProperty( |
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"--env-safe-area-inset-top", |
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`${top}px`, |
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); |
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document.documentElement.style.setProperty( |
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"--env-safe-area-inset-bottom", |
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`${bottom}px`, |
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); |
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document.documentElement.style.setProperty( |
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"--env-safe-area-inset-left", |
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`${left}px`, |
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); |
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document.documentElement.style.setProperty( |
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"--env-safe-area-inset-right", |
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`${right}px`, |
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); |
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} |
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} catch (error) { |
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// Error injecting safe area insets, will use fallback values
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} |
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}; |
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// Initialize when DOM is ready
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const initializeSafeArea = () => { |
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// Check if we should run this script at all
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if (!isAndroidWebView()) { |
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return; |
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} |
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// Add a small delay to ensure WebView is fully initialized
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setTimeout(() => { |
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injectSafeAreaInsets(); |
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}, 100); |
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}; |
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if (document.readyState === "loading") { |
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document.addEventListener("DOMContentLoaded", initializeSafeArea); |
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} else { |
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initializeSafeArea(); |
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} |
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// Re-inject on orientation change (only on Android)
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window.addEventListener("orientationchange", () => { |
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if (isAndroidWebView()) { |
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setTimeout(() => injectSafeAreaInsets(), 100); |
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} |
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}); |
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// Re-inject on resize (only on Android)
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window.addEventListener("resize", () => { |
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if (isAndroidWebView()) { |
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setTimeout(() => injectSafeAreaInsets(), 100); |
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} |
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}); |
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// Export for use in other modules
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export { injectSafeAreaInsets, isAndroidWebView }; |
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