[ozone] Add clipboard testing support.

Mock out clipboard delegate and provide a simple mocked system clipboard implementation to test clipboard_ozone Change-Id: I4d65e1496930cb14a32396be974e8f84353288d0
Igalia · Dec 3, 2018 · 087ad68 · 087ad68
1 parent 5a815d7
commit 087ad68
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Showing 3 changed files with 71 additions and 1 deletion.
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
@@ -4795,6 +4795,10 @@ if (!is_android) {
     if (is_linux) {
       data += [ "$root_out_dir/libppapi_tests.so" ]
     }
+
+    if (use_ozone) {
+      sources += [ "//ui/base/clipboard/mock_clipboard_delegate.h", ]
+    }
 
     defines = [ "HAS_OUT_OF_PROC_TEST_RUNNER" ]
     ldflags = []

diff --git a/ui/base/clipboard/clipboard_unittest.cc b/ui/base/clipboard/clipboard_unittest.cc
@@ -10,6 +10,12 @@
 #include "ui/events/platform/platform_event_source.h"
 #endif
 
+#if defined(USE_OZONE)
+#include "ui/base/clipboard/mock_clipboard_delegate.h"
+
+ui::ClipboardDelegate* g_clipboard_delegate_ = nullptr;
+#endif
+
 namespace ui {
 
 struct PlatformClipboardTraits {
@@ -19,7 +25,15 @@ struct PlatformClipboardTraits {
   }
 #endif
 
-  static Clipboard* Create() { return Clipboard::GetForCurrentThread(); }
+  static Clipboard* Create() {
+    auto clipboard = Clipboard::GetForCurrentThread();
+#if defined(USE_OZONE)
+    DCHECK(!g_clipboard_delegate_);
+    g_clipboard_delegate_ = new MockClipboardDelegate();
+    clipboard->SetDelegate(g_clipboard_delegate_);
+#endif
+    return clipboard;
+  }
 
   static void Destroy(Clipboard* clipboard) {
     ASSERT_EQ(Clipboard::GetForCurrentThread(), clipboard);

diff --git a/ui/base/clipboard/mock_clipboard_delegate.h b/ui/base/clipboard/mock_clipboard_delegate.h
@@ -0,0 +1,52 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_BASE_CLIPBOARD_MOCK_CLIPBOARD_DELEGATE_
+#define UI_BASE_CLIPBOARD_MOCK_CLIPBOARD_DELEGATE_
+
+#include "base/callback.h"
+#include "ui/ozone/public/clipboard_delegate.h"
+
+namespace ui {
+
+// Delegate class, which mocks out system clipboard.
+// TODO(msisov): move the declaration details to .cc file.
+class MockClipboardDelegate : public ClipboardDelegate {
+  public:
+    MockClipboardDelegate() = default;
+    ~MockClipboardDelegate() = default;
+
+    void OfferClipboardData(const DataMap& data_map,
+                                  OfferDataClosure callback) override {
+      offered_data_map_ = data_map;
+      std::move(callback).Run();
+    }
+
+    void RequestClipboardData(const std::string& mime_type,
+                                    DataMap* data_map,
+                                    RequestDataClosure callback) override {
+      auto it = offered_data_map_.find(mime_type);
+      DCHECK(it != offered_data_map_.end());
+      *data_map = offered_data_map_;
+      std::move(callback).Run(std::move(it->second));
+    }
+
+    void GetAvailableMimeTypes(GetMimeTypesClosure callback) override {
+      std::vector<std::string> mime_types;
+      for (const auto& item : offered_data_map_) {
+        mime_types.push_back(item.first);
+      }
+      std::move(callback).Run(std::move(mime_types));
+    }
+
+    bool IsSelectionOwner() override {
+      return !offered_data_map_.empty();
+    }
+  private:
+    ClipboardDelegate::DataMap offered_data_map_;
+};
+
+} // namespace ui
+
+#endif // UI_OZONE_PUBLIC_CLIPBOARD_DELEGATE_H_