【APPCenter】Crash编号：112 -- 修复

PDF Office/PDF Master/Class/Home/ViewController/KMHomeViewController+Action.swift

@@ -424,43 +424,29 @@ extension KMHomeViewController {
                         showLimitWindowAlert(url: url)
                         return
                     }
-                    KMMainDocument().tryToUnlockDocument(pdfDoc!)
-                    var selectDocument: KMMainDocument? = nil
-                    if ((document?.isKind(of: KMMainDocument.self)) != nil) {
-                        selectDocument = (document as! KMMainDocument)
-                    }
-                    if selectDocument != nil {
-                        let currentIndex = selectDocument?.browser.tabStripModel.index(of: selectDocument)
-                        selectDocument?.browser.tabStripModel.selectTabContents(at: Int32(currentIndex!), userGesture: true)
-                        if (selectDocument?.browser.window.isVisible)! as Bool {
+                }
+                
+                KMMainDocument().tryToUnlockDocument(pdfDoc!)
+                var selectDocument: KMMainDocument? = nil
+                if ((document?.isKind(of: KMMainDocument.self)) != nil) {
+                    selectDocument = (document as! KMMainDocument)
+                }
+                if selectDocument != nil {
+                    if selectDocument?.browser != nil {
+                        let currentIndex = selectDocument?.browser.tabStripModel.index(of: selectDocument) ?? 0
+                        selectDocument?.browser.tabStripModel.selectTabContents(at: Int32(currentIndex), userGesture: true)
+                        let isVisible: Bool = selectDocument?.browser.window.isVisible ?? false
+                        let isMiniaturized: Bool = selectDocument?.browser.window.isMiniaturized ?? false
+                        
+                        if isVisible {
                             selectDocument?.browser.window.orderFront(nil)
-                        } else if (selectDocument?.browser.window.isMiniaturized)! as Bool {
+                        } else if isMiniaturized {
                             selectDocument?.browser.window.orderFront(nil)
                         }
-                    } else {
-                        NSDocumentController.shared.km_safe_openDocument(withContentsOf: url, display: true) { _, _, _ in
-                            
-                        }
                     }
                 } else {
-                    var selectDocument: KMMainDocument? = nil
-                    if ((document?.isKind(of: KMMainDocument.self)) != nil) {
-                        selectDocument = (document as! KMMainDocument)
-                    }
-                    if selectDocument != nil {
-                        if selectDocument?.browser != nil {
-                            let currentIndex = selectDocument?.browser.tabStripModel.index(of: selectDocument)
-                            selectDocument?.browser.tabStripModel.selectTabContents(at: Int32(currentIndex!), userGesture: true)
-                            if (selectDocument?.browser.window.isVisible)! as Bool {
-                                selectDocument?.browser.window.orderFront(nil)
-                            } else if (selectDocument?.browser.window.isMiniaturized)! as Bool {
-                                selectDocument?.browser.window.orderFront(nil)
-                            }
-                        }
-                    } else {
-                        NSDocumentController.shared.km_safe_openDocument(withContentsOf: url, display: true) { _, _, _ in
-                            
-                        }
+                    NSDocumentController.shared.km_safe_openDocument(withContentsOf: url, display: true) { _, _, _ in
+                        
                     }
                 }
             } else {