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-rw-r--r--xfa/fde/cfde_texteditengine.cpp25
-rw-r--r--xfa/fde/cfde_texteditengine.h6
-rw-r--r--xfa/fde/cfde_texteditengine_unittest.cpp112
3 files changed, 136 insertions, 7 deletions
diff --git a/xfa/fde/cfde_texteditengine.cpp b/xfa/fde/cfde_texteditengine.cpp
index e92897ea7d..b5948d45ce 100644
--- a/xfa/fde/cfde_texteditengine.cpp
+++ b/xfa/fde/cfde_texteditengine.cpp
@@ -9,6 +9,7 @@
#include <algorithm>
#include <limits>
+#include "core/fxcrt/cfx_wordbreak.h"
#include "xfa/fde/cfde_textout.h"
namespace {
@@ -927,7 +928,14 @@ std::vector<CFX_RectF> CFDE_TextEditEngine::GetCharacterRectsInRange(
return rects;
}
-CFDE_TextEditEngine::Iterator::Iterator(CFDE_TextEditEngine* engine)
+std::pair<size_t, size_t> CFDE_TextEditEngine::BoundsForWordAt(
+ size_t idx) const {
+ CFX_WordBreak breaker(
+ pdfium::MakeUnique<CFDE_TextEditEngine::Iterator>(this));
+ return breaker.BoundsAt(idx);
+}
+
+CFDE_TextEditEngine::Iterator::Iterator(const CFDE_TextEditEngine* engine)
: engine_(engine), current_position_(-1) {}
CFDE_TextEditEngine::Iterator::~Iterator() {}
@@ -936,8 +944,9 @@ bool CFDE_TextEditEngine::Iterator::Next(bool bPrev) {
if (bPrev && current_position_ == -1)
return false;
if (!bPrev && current_position_ > -1 &&
- static_cast<size_t>(current_position_) == engine_->GetLength())
+ static_cast<size_t>(current_position_) == engine_->GetLength()) {
return false;
+ }
if (bPrev)
--current_position_;
@@ -952,7 +961,12 @@ wchar_t CFDE_TextEditEngine::Iterator::GetChar() const {
}
void CFDE_TextEditEngine::Iterator::SetAt(int32_t nIndex) {
- NOTREACHED();
+ if (nIndex < 0)
+ current_position_ = 0;
+ else if (static_cast<size_t>(nIndex) >= engine_->GetLength())
+ current_position_ = engine_->GetLength();
+ else
+ current_position_ = nIndex;
}
int32_t CFDE_TextEditEngine::Iterator::GetAt() const {
@@ -967,6 +981,7 @@ bool CFDE_TextEditEngine::Iterator::IsEOF(bool bTail) const {
}
std::unique_ptr<IFX_CharIter> CFDE_TextEditEngine::Iterator::Clone() const {
- NOTREACHED();
- return pdfium::MakeUnique<CFDE_TextEditEngine::Iterator>(engine_.Get());
+ auto it = pdfium::MakeUnique<CFDE_TextEditEngine::Iterator>(engine_.Get());
+ it->current_position_ = current_position_;
+ return it;
}
diff --git a/xfa/fde/cfde_texteditengine.h b/xfa/fde/cfde_texteditengine.h
index 35d9664f99..0277b0cc64 100644
--- a/xfa/fde/cfde_texteditengine.h
+++ b/xfa/fde/cfde_texteditengine.h
@@ -40,7 +40,7 @@ class CFDE_TextEditEngine {
public:
class Iterator : public IFX_CharIter {
public:
- explicit Iterator(CFDE_TextEditEngine* engine);
+ explicit Iterator(const CFDE_TextEditEngine* engine);
~Iterator() override;
bool Next(bool bPrev = false) override;
@@ -51,7 +51,7 @@ class CFDE_TextEditEngine {
std::unique_ptr<IFX_CharIter> Clone() const override;
private:
- CFX_UnownedPtr<CFDE_TextEditEngine> engine_;
+ CFX_UnownedPtr<const CFDE_TextEditEngine> engine_;
int32_t current_position_;
};
@@ -160,6 +160,8 @@ class CFDE_TextEditEngine {
size_t GetWidthOfChar(size_t idx);
// Non-const so we can force a Layout() if needed.
size_t GetIndexForPoint(const CFX_PointF& point);
+ // <start_idx, end_idx>
+ std::pair<size_t, size_t> BoundsForWordAt(size_t idx) const;
// Returns <bidi level, character rect>
std::pair<int32_t, CFX_RectF> GetCharacterInfo(int32_t start_idx);
diff --git a/xfa/fde/cfde_texteditengine_unittest.cpp b/xfa/fde/cfde_texteditengine_unittest.cpp
index da11e46daa..2084914bbf 100644
--- a/xfa/fde/cfde_texteditengine_unittest.cpp
+++ b/xfa/fde/cfde_texteditengine_unittest.cpp
@@ -416,3 +416,115 @@ TEST_F(CFDE_TextEditEngineTest, GetIndexForPoint) {
EXPECT_EQ(11U, engine()->GetIndexForPoint({999999.0f, 9999999.0f}));
EXPECT_EQ(1U, engine()->GetIndexForPoint({10.0f, 5.0f}));
}
+
+TEST_F(CFDE_TextEditEngineTest, BoundsForWordAt) {
+ size_t start_idx;
+ size_t end_idx;
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(100);
+ EXPECT_EQ(0U, start_idx);
+ EXPECT_EQ(0U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(0);
+ EXPECT_EQ(0U, start_idx);
+ EXPECT_EQ(4U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"Hello", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello World");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(100);
+ EXPECT_EQ(11U, start_idx);
+ EXPECT_EQ(11U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(0);
+ EXPECT_EQ(0U, start_idx);
+ EXPECT_EQ(4U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"Hello", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(1);
+ EXPECT_EQ(0U, start_idx);
+ EXPECT_EQ(4U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"Hello", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(4);
+ EXPECT_EQ(0U, start_idx);
+ EXPECT_EQ(4U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"Hello", engine()->GetSelectedText().c_str());
+
+ // Select the space
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(5);
+ EXPECT_EQ(5U, start_idx);
+ EXPECT_EQ(5U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(6);
+ EXPECT_EQ(6U, start_idx);
+ EXPECT_EQ(10U, end_idx);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"World", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"123 456 789");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(5);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"456", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"123def789");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(5);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"123def789", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"abc456ghi");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(5);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"abc456ghi", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"hello, world");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(0);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"hello", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"hello, world");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(5);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"np-complete");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(6);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"complete", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"(123) 456-7890");
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(0);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(1);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"123", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(7);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"456", engine()->GetSelectedText().c_str());
+
+ std::tie(start_idx, end_idx) = engine()->BoundsForWordAt(11);
+ engine()->SetSelection(start_idx, end_idx);
+ EXPECT_STREQ(L"7890", engine()->GetSelectedText().c_str());
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 01:24:22 +0000