Fix #627 Add brave://search URL scheme

BraveShareTo/ShareToBraveViewController.swift

@@ -8,11 +8,47 @@ import MobileCoreServices
 import BraveShared
 
 class ShareToBraveViewController: SLComposeServiceViewController {
+    private struct Scheme {
+            private enum SchemeType {
+                case url, query
+            }
+
+            private let type: SchemeType
+            private let urlOrQuery: String
+
+            init?(item: NSSecureCoding) {
+                if let text = item as? String {
+                    urlOrQuery = text
+                    type = .query
+                } else if let url = (item as? URL)?.absoluteString.firstURL?.absoluteString {
+                    urlOrQuery = url
+                    type = .url
+                } else {
+                    return nil
+                }
+            }
+
+            var schemeUrl: URL? {
+                var components = URLComponents()
+                let queryItem: URLQueryItem
+
+                components.scheme = "brave"
+
+                switch type {
+                case .url:
+                    components.host = "open-url"
+                    queryItem = URLQueryItem(name: "url", value: urlOrQuery)
+                case .query:
+                    components.host = "search"
+                    queryItem = URLQueryItem(name: "q", value: urlOrQuery)
+                }
+
+                components.queryItems = [queryItem]
+                return components.url
+            }
+        }
 
     // TODO: Separate scheme for debug builds, so it can be tested without need to uninstall production app.
-    private func urlScheme(for url: String) -> URL? {
-        return URL(string: "brave://open-url?url=\(url)")
-    }
 
     override func configurationItems() -> [Any]! {
         guard let inputItems = extensionContext?.inputItems as? [NSExtensionItem] else {
@@ -34,24 +70,12 @@ class ShareToBraveViewController: SLComposeServiceViewController {
         }
 
         provider.loadItem(of: provider.isUrl ? kUTTypeURL : kUTTypeText) { item, error in
-            var urlItem: URL?
-
-            // We can get urls from other apps as a kUTTypeText type, for example from Apple's mail.app.
-            if let text = item as? String {
-                urlItem = text.firstURL
-            } else if let url = item as? URL {
-                urlItem = url.absoluteString.firstURL
-            } else {
+            guard let item = item, let schemeUrl = Scheme(item: item)?.schemeUrl else {
                 self.cancel()
                 return
-            }
-
-            // Just open the app if we don't find a url. In the future we could
-            // use this entry point to search instead of open a given URL
-            let urlString = urlItem?.absoluteString ?? ""
-            if let braveUrl = urlString.addingPercentEncoding(withAllowedCharacters: .alphanumerics).flatMap(self.urlScheme) {
-                self.handleUrl(braveUrl)
-            }
+             }
+
+            self.handleUrl(schemeUrl)
         }
 
         return []

Client/Application/NavigationRouter.swift

@@ -60,6 +60,9 @@ enum NavigationPath: Equatable {
         } else if urlString.starts(with: "\(scheme)://open-text") {
             let text = components.valueForQuery("text")
             self = .text(text ?? "")
+        } else if urlString.starts(with: "\(scheme)://search") {
+            let text = components.valueForQuery("q")
+            self = .text(text ?? "")
         } else {
             return nil
         }

Client/Frontend/Browser/BrowserViewController.swift

@@ -1725,7 +1725,7 @@ class BrowserViewController: UIViewController {
                 // This let's the user spam the Cmd+T button without lots of responder changes.
                 guard freshTab == self.tabManager.selectedTab else { return }
                 if let text = searchText {
-                    self.topToolbar.setLocation(text, search: true)
+                    self.topToolbar.submitLocation(text)
                 }
             }
         }

Client/Frontend/Browser/Toolbars/UrlBar/TopToolbarView.swift

@@ -392,6 +392,15 @@ class TopToolbarView: UIView, ToolbarProtocol {
         }
     }
 
+    func submitLocation(_ location: String?) {
+        locationTextField?.text = location
+        guard let text = location, !text.isEmpty else {
+            return
+        }
+        // Not notifying when empty agrees with AutocompleteTextField.textDidChange.
+        delegate?.topToolbar(self, didSubmitText: text)
+    }
+
     func enterOverlayMode(_ locationText: String?, pasted: Bool, search: Bool) {
         createLocationTextField()
 

ClientTests/NavigationRouterTests.swift

@@ -42,6 +42,14 @@ class NavigationRouterTests: XCTestCase {
         XCTAssertEqual(badNav, NavigationPath.url(webURL: URL(string: "blah"), isPrivate: false))
     }
 
+    func testSearchScheme() {
+        let query = "Foo Bar".addingPercentEncoding(withAllowedCharacters: .alphanumerics)!
+        let appURL = "\(appScheme)://search?q="+query
+        let navItem = NavigationPath(url: URL(string: appURL)!)!
+
+        XCTAssertEqual(navItem, NavigationPath.text("Foo Bar"))
+    }
+
     func testDefaultNavigationPath() {
         let url = URL(string: "https://duckduckgo.com")!
         let appURL = URL(string: "\(self.appScheme)://open-url?url=\(url.absoluteString.escape()!)")!