Handle the mouse back/forward button in the browser directly

Ensure that the result of mouse up is passed back to the browser so
that it can be executed on the browser side.

BUG=850847,705583

Change-Id: Iebf871c43a9957af1f66a398344efcddc47d7293
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1769525
Commit-Queue: Dave Tapuska <[email protected]>
Reviewed-by: Charlie Reis <[email protected]>
Reviewed-by: Navid Zolghadr <[email protected]>
Cr-Commit-Position: refs/heads/master@{#694770}
diff --git a/content/browser/renderer_host/input/mouse_latency_browsertest.cc b/content/browser/renderer_host/input/mouse_latency_browsertest.cc
index 23caf0a..41ffc93 100644
--- a/content/browser/renderer_host/input/mouse_latency_browsertest.cc
+++ b/content/browser/renderer_host/input/mouse_latency_browsertest.cc
@@ -352,7 +352,7 @@
       GetWidgetHost(), blink::WebInputEvent::kMouseUp);
   StartTracing();
   DoSyncClick(gfx::PointF(100, 100));
-  EXPECT_EQ(INPUT_EVENT_ACK_STATE_CONSUMED,
+  EXPECT_EQ(INPUT_EVENT_ACK_STATE_NOT_CONSUMED,
             filter->GetAckStateWaitIfNecessary());
   const base::Value& trace_data = StopTracing();
 
diff --git a/content/browser/renderer_host/render_widget_host_delegate.cc b/content/browser/renderer_host/render_widget_host_delegate.cc
index 03f964a..fe8609c 100644
--- a/content/browser/renderer_host/render_widget_host_delegate.cc
+++ b/content/browser/renderer_host/render_widget_host_delegate.cc
@@ -22,6 +22,11 @@
   return false;
 }
 
+bool RenderWidgetHostDelegate::HandleMouseEvent(
+    const blink::WebMouseEvent& event) {
+  return false;
+}
+
 bool RenderWidgetHostDelegate::HandleWheelEvent(
     const blink::WebMouseWheelEvent& event) {
   return false;
diff --git a/content/browser/renderer_host/render_widget_host_delegate.h b/content/browser/renderer_host/render_widget_host_delegate.h
index d073e85d7..7894b65 100644
--- a/content/browser/renderer_host/render_widget_host_delegate.h
+++ b/content/browser/renderer_host/render_widget_host_delegate.h
@@ -108,6 +108,11 @@
 
   // Callback to inform the browser that the renderer did not process the
   // specified events. This gives an opportunity to the browser to process the
+  // back/forward mouse buttons.
+  virtual bool HandleMouseEvent(const blink::WebMouseEvent& event);
+
+  // Callback to inform the browser that the renderer did not process the
+  // specified events. This gives an opportunity to the browser to process the
   // event (used for keyboard shortcuts).
   virtual bool HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
 
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index d7055ce..1fb9487 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1972,6 +1972,11 @@
   for (auto& input_event_observer : input_event_observers_)
     input_event_observer.OnInputEventAck(ack_source, ack_result,
                                          mouse_event.event);
+
+  // Give the delegate the ability to handle a mouse event that wasn't consumed
+  // by the renderer. eg. Back/Forward mouse buttons.
+  if (delegate_ && ack_result != INPUT_EVENT_ACK_STATE_CONSUMED && !is_hidden())
+    delegate_->HandleMouseEvent(mouse_event.event);
 }
 
 bool RenderWidgetHostImpl::IsMouseLocked() const {
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index ddd8255..6ab3420 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2372,6 +2372,25 @@
                    : KeyboardEventProcessingResult::NOT_HANDLED;
 }
 
+bool WebContentsImpl::HandleMouseEvent(const blink::WebMouseEvent& event) {
+  // Handle mouse button back/forward in the browser process after the render
+  // process is done with the event. This ensures all renderer-initiated history
+  // navigations can be treated consistently.
+  if (event.GetType() == blink::WebInputEvent::Type::kMouseUp) {
+    WebContentsImpl* outermost = GetOutermostWebContents();
+    if (event.button == blink::WebPointerProperties::Button::kBack &&
+        outermost->controller_.CanGoBack()) {
+      outermost->controller_.GoBack();
+      return true;
+    } else if (event.button == blink::WebPointerProperties::Button::kForward &&
+               outermost->controller_.CanGoForward()) {
+      outermost->controller_.GoForward();
+      return true;
+    }
+  }
+  return false;
+}
+
 bool WebContentsImpl::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {
   if (browser_plugin_embedder_ &&
       browser_plugin_embedder_->HandleKeyboardEvent(event)) {
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index b256fe6..3121f105 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -763,6 +763,7 @@
 
   KeyboardEventProcessingResult PreHandleKeyboardEvent(
       const NativeWebKeyboardEvent& event) override;
+  bool HandleMouseEvent(const blink::WebMouseEvent& event) override;
   bool HandleKeyboardEvent(const NativeWebKeyboardEvent& event) override;
   bool HandleWheelEvent(const blink::WebMouseWheelEvent& event) override;
   bool PreHandleGestureEvent(const blink::WebGestureEvent& event) override;
diff --git a/content/browser/web_contents/web_contents_impl_browsertest.cc b/content/browser/web_contents/web_contents_impl_browsertest.cc
index 7ba29e5..5550c69 100644
--- a/content/browser/web_contents/web_contents_impl_browsertest.cc
+++ b/content/browser/web_contents/web_contents_impl_browsertest.cc
@@ -17,6 +17,7 @@
 #include "base/strings/pattern.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/scoped_feature_list.h"
+#include "base/test/test_timeouts.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/time/time.h"
 #include "base/values.h"
@@ -3906,4 +3907,110 @@
   EXPECT_THAT(deleted_routing_ids, testing::Contains(frame_routing_id));
 }
 
+IN_PROC_BROWSER_TEST_F(WebContentsImplBrowserTest, MouseButtonsNavigate) {
+  ASSERT_TRUE(embedded_test_server()->Start());
+  WebContentsImpl* web_contents =
+      static_cast<WebContentsImpl*>(shell()->web_contents());
+
+  GURL url_a = embedded_test_server()->GetURL("a.com", "/title1.html");
+  GURL url_b = embedded_test_server()->GetURL("b.com", "/title1.html");
+
+  EXPECT_TRUE(NavigateToURL(shell(), url_a));
+  EXPECT_TRUE(NavigateToURL(shell(), url_b));
+
+  {
+    TestNavigationObserver back_observer(web_contents);
+    web_contents->GetRenderWidgetHostWithPageFocus()->ForwardMouseEvent(
+        blink::WebMouseEvent(
+            blink::WebInputEvent::kMouseUp, blink::WebFloatPoint(51, 50),
+            blink::WebFloatPoint(51, 50),
+            blink::WebPointerProperties::Button::kBack, 0,
+            blink::WebInputEvent::kNoModifiers, base::TimeTicks::Now()));
+    back_observer.Wait();
+    ASSERT_EQ(url_a, web_contents->GetLastCommittedURL());
+  }
+
+  {
+    TestNavigationObserver forward_observer(web_contents);
+    web_contents->GetRenderWidgetHostWithPageFocus()->ForwardMouseEvent(
+        blink::WebMouseEvent(
+            blink::WebInputEvent::kMouseUp, blink::WebFloatPoint(51, 50),
+            blink::WebFloatPoint(51, 50),
+            blink::WebPointerProperties::Button::kForward, 0,
+            blink::WebInputEvent::kNoModifiers, base::TimeTicks::Now()));
+    forward_observer.Wait();
+    ASSERT_EQ(url_b, web_contents->GetLastCommittedURL());
+  }
+}
+
+IN_PROC_BROWSER_TEST_F(WebContentsImplBrowserTest, MouseButtonsDontNavigate) {
+  // This test injects mouse event listeners in javascript that will
+  // preventDefault the action causing the default navigation action not to be
+  // taken.
+
+  ASSERT_TRUE(embedded_test_server()->Start());
+  WebContentsImpl* web_contents =
+      static_cast<WebContentsImpl*>(shell()->web_contents());
+
+  GURL url_a = embedded_test_server()->GetURL("a.com", "/title1.html");
+  GURL url_b = embedded_test_server()->GetURL("b.com", "/title1.html");
+
+  EXPECT_TRUE(NavigateToURL(shell(), url_a));
+  EXPECT_TRUE(NavigateToURL(shell(), url_b));
+
+  // Prevent default the action.
+  EXPECT_TRUE(content::ExecuteScript(shell(),
+                                     "document.addEventListener('mouseup', "
+                                     "event => event.preventDefault());"));
+
+  RenderWidgetHostImpl* render_widget_host =
+      web_contents->GetRenderWidgetHostWithPageFocus();
+  render_widget_host->ForwardMouseEvent(blink::WebMouseEvent(
+      blink::WebInputEvent::kMouseUp, blink::WebFloatPoint(51, 50),
+      blink::WebFloatPoint(51, 50), blink::WebPointerProperties::Button::kBack,
+      0, blink::WebInputEvent::kNoModifiers, base::TimeTicks::Now()));
+  RunUntilInputProcessed(render_widget_host);
+
+  // Wait an action timeout and assert the URL is correct.
+  {
+    base::RunLoop run_loop;
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, run_loop.QuitClosure(), TestTimeouts::action_timeout());
+    run_loop.Run();
+  }
+  ASSERT_EQ(url_b, web_contents->GetLastCommittedURL());
+
+  // Move back so we have a forward entry in the history stack so we
+  // can test forward getting canceled.
+  {
+    TestNavigationObserver back_observer(web_contents);
+    web_contents->GetController().GoBack();
+    back_observer.Wait();
+    ASSERT_EQ(url_a, web_contents->GetLastCommittedURL());
+  }
+
+  // Now test the forward button by going back, and injecting the prevention
+  // script.
+  // Prevent default the action.
+  EXPECT_TRUE(content::ExecuteScript(shell(),
+                                     "document.addEventListener('mouseup', "
+                                     "event => event.preventDefault());"));
+
+  render_widget_host = web_contents->GetRenderWidgetHostWithPageFocus();
+  render_widget_host->ForwardMouseEvent(blink::WebMouseEvent(
+      blink::WebInputEvent::kMouseUp, blink::WebFloatPoint(51, 50),
+      blink::WebFloatPoint(51, 50),
+      blink::WebPointerProperties::Button::kForward, 0,
+      blink::WebInputEvent::kNoModifiers, base::TimeTicks::Now()));
+  RunUntilInputProcessed(render_widget_host);
+  // Wait an action timeout and assert the URL is correct.
+  {
+    base::RunLoop run_loop;
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, run_loop.QuitClosure(), TestTimeouts::action_timeout());
+    run_loop.Run();
+  }
+  ASSERT_EQ(url_a, web_contents->GetLastCommittedURL());
+}
+
 }  // namespace content
diff --git a/content/renderer/input/render_widget_input_handler.cc b/content/renderer/input/render_widget_input_handler.cc
index 68a99ade..364073b 100644
--- a/content/renderer/input/render_widget_input_handler.cc
+++ b/content/renderer/input/render_widget_input_handler.cc
@@ -376,6 +376,7 @@
   }
 
   bool prevent_default = false;
+  bool show_virtual_keyboard_for_mouse = false;
   if (WebInputEvent::IsMouseEventType(input_event.GetType())) {
     const WebMouseEvent& mouse_event =
         static_cast<const WebMouseEvent&>(input_event);
@@ -388,6 +389,11 @@
     // time that the mouse enters we always set the cursor accordingly.
     if (mouse_event.GetType() == WebInputEvent::kMouseLeave)
       current_cursor_.reset();
+
+    if (mouse_event.button == WebPointerProperties::Button::kLeft &&
+        mouse_event.GetType() == WebInputEvent::kMouseUp) {
+      show_virtual_keyboard_for_mouse = true;
+    }
   }
 
   if (WebInputEvent::IsKeyboardEventType(input_event.GetType())) {
@@ -494,9 +500,9 @@
 
   // Show the virtual keyboard if enabled and a user gesture triggers a focus
   // change.
-  if (processed != WebInputEventResult::kNotHandled &&
-      (input_event.GetType() == WebInputEvent::kTouchEnd ||
-       input_event.GetType() == WebInputEvent::kMouseUp)) {
+  if ((processed != WebInputEventResult::kNotHandled &&
+       input_event.GetType() == WebInputEvent::kTouchEnd) ||
+      show_virtual_keyboard_for_mouse) {
     delegate_->ShowVirtualKeyboard();
   }