Add embeddertest for CFWL_Edit

This CL adds two mouse selection tests for CFWL_Edit. In order to do so
the needed selection code was added to the XFA widget handler and
plumbed down to the CFWL_Edit field as needed.

Bug: pdfium:840
Change-Id: Ia3b5f5d191494a4579c01524df8fb35b24cc0085
Reviewed-on: https://pdfium-review.googlesource.com/14530
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/xfa/fwl/cfwl_edit_embeddertest.cpp b/xfa/fwl/cfwl_edit_embeddertest.cpp
new file mode 100644
index 0000000000..c1575689eb
--- /dev/null
+++ b/xfa/fwl/cfwl_edit_embeddertest.cpp
@@ -0,0 +1,67 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/fxcrt/widestring.h"
+#include "public/fpdf_formfill.h"
+#include "public/fpdf_fwlevent.h"
+#include "testing/embedder_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class CFWLEditEmbeddertest : public EmbedderTest {
+ protected:
+  void SetUp() override {
+    EmbedderTest::SetUp();
+    CreateAndInitializeFormPDF();
+  }
+
+  void TearDown() override {
+    UnloadPage(page());
+    EmbedderTest::TearDown();
+  }
+
+  void CreateAndInitializeFormPDF() {
+    EXPECT_TRUE(OpenDocument("xfa/email_recommended.pdf"));
+    page_ = LoadPage(0);
+    ASSERT_TRUE(page_);
+  }
+
+  FPDF_PAGE page() const { return page_; }
+
+ private:
+  FPDF_PAGE page_;
+};
+
+TEST_F(CFWLEditEmbeddertest, LeftClickMouseSelection) {
+  FORM_OnLButtonDown(form_handle(), page(), 0, 115, 58);
+  for (size_t i = 0; i < 10; ++i)
+    FORM_OnChar(form_handle(), page(), 'a' + i, 0);
+
+  // Mouse selection
+  FORM_OnLButtonDown(form_handle(), page(), 0, 128, 58);
+  FORM_OnLButtonDown(form_handle(), page(), FWL_EVENTFLAG_ShiftKey, 152, 58);
+
+  // 12 == (2 * strlen(defgh)) + 2 (for \0\0)
+  EXPECT_EQ(12UL, FORM_GetSelectedText(form_handle(), page(), nullptr, 0));
+
+  unsigned short buf[128];
+  unsigned long len = FORM_GetSelectedText(form_handle(), page(), &buf, 128);
+  EXPECT_STREQ(L"defgh", WideString::FromUTF16LE(buf, len).c_str());
+}
+
+TEST_F(CFWLEditEmbeddertest, DragMouseSelection) {
+  FORM_OnLButtonDown(form_handle(), page(), 0, 115, 58);
+  for (size_t i = 0; i < 10; ++i)
+    FORM_OnChar(form_handle(), page(), 'a' + i, 0);
+
+  // Mouse selection
+  FORM_OnLButtonDown(form_handle(), page(), 0, 128, 58);
+  FORM_OnMouseMove(form_handle(), page(), FWL_EVENTFLAG_ShiftKey, 152, 58);
+
+  // 12 == (2 * strlen(defgh)) + 2 (for \0\0)
+  EXPECT_EQ(12UL, FORM_GetSelectedText(form_handle(), page(), nullptr, 0));
+
+  unsigned short buf[128];
+  unsigned long len = FORM_GetSelectedText(form_handle(), page(), &buf, 128);
+  EXPECT_STREQ(L"defgh", WideString::FromUTF16LE(buf, len).c_str());
+}