Reuse context menu in StaticHTMLViewController

ios/chrome/browser/ui/static_content/static_html_view_controller.mm

Index: ios/chrome/browser/ui/static_content/static_html_view_controller.mm
diff --git a/ios/chrome/browser/ui/static_content/static_html_view_controller.mm b/ios/chrome/browser/ui/static_content/static_html_view_controller.mm
index cd2e6331a2038863d3fd100e8e5f02b682194249..d5948eac23546b3a854abce0d5d3807ff4fa4444 100644
--- a/ios/chrome/browser/ui/static_content/static_html_view_controller.mm
+++ b/ios/chrome/browser/ui/static_content/static_html_view_controller.mm
@@ -15,6 +15,7 @@
 #include "ios/web/public/referrer.h"
 #import "ios/web/public/web_state/ui/crw_native_content.h"
 #import "ios/web/public/web_view_creation_util.h"
+#import "ios/web/public/web_state/ui/crw_context_menu_controller.h"
 #import "net/base/mac/url_conversions.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/base/resource/resource_bundle.h"
@@ -43,7 +44,9 @@
 }
 @end
 
-@interface StaticHtmlViewController ()<WKNavigationDelegate> {
+@interface StaticHtmlViewController ()<CRWContextMenuControllerWebView,
+                                       WKNavigationDelegate,
+                                       UIGestureRecognizerDelegate> {

[jif, 2017/01/12 17:13:12]

remove UIGestureRecognizerDelegate?

[Olivier, 2017/01/13 10:20:25]

Done.

  @private
   // The referrer that will be passed when navigating from this page.
   web::Referrer referrer_;
@@ -76,6 +79,10 @@
   // The delegate of the native content.
   id<CRWNativeContentDelegate> delegate_;  // weak
 
+  // The controller that will recognize the long press and trigger the context
+  // menu.
+  base::scoped_nsobject<CRWContextMenuController> contextMenuController_;
+
   // The loader to navigate from the page.
   id<UrlLoader> loader_;  // weak
 }
@@ -116,7 +123,9 @@
 
 - (instancetype)initWithFileURL:(const GURL&)URL
         allowingReadAccessToURL:(const GURL&)resourcesRoot
-                   browserState:(web::BrowserState*)browserState {
+                   browserState:(web::BrowserState*)browserState
+            contextMenuDelegate:
+                (id<CRWContextMenuControllerDelegate>)contextMenuDelegate {
   DCHECK(URL.is_valid());
   DCHECK(URL.SchemeIsFile());
   DCHECK(browserState);
@@ -124,6 +133,11 @@
     resourceUrl_.reset([net::NSURLWithGURL(URL) retain]);
     resourcesRootDirectory_.reset([net::NSURLWithGURL(resourcesRoot) retain]);
     browserState_ = browserState;
+    if (contextMenuDelegate) {
+      contextMenuController_.reset([[CRWContextMenuController alloc]
+          initWithWebView:self
+                 delegate:contextMenuDelegate]);
+    }
   }
   return self;
 }
@@ -210,6 +224,12 @@
 }
 
 #pragma mark -
+#pragma mark CRWWKContextMenuWebView implementation
+- (UIView*)webScrollView {
+  return self.scrollView;
+}
+
+#pragma mark -
 #pragma mark KVO callback
 
 - (void)observeValueForKeyPath:(NSString*)keyPath