| // Copyright 2013 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. |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "ui/views/controls/link.h" |
| #include "ui/views/controls/styled_label.h" |
| #include "ui/views/controls/styled_label_listener.h" |
| |
| namespace views { |
| |
| class StyledLabelTest : public testing::Test, public StyledLabelListener { |
| public: |
| StyledLabelTest() {} |
| virtual ~StyledLabelTest() {} |
| |
| // StyledLabelListener implementation. |
| virtual void StyledLabelLinkClicked(const gfx::Range& range, |
| int event_flags) OVERRIDE {} |
| |
| protected: |
| StyledLabel* styled() { return styled_.get(); } |
| |
| void InitStyledLabel(const std::string& ascii_text) { |
| styled_.reset(new StyledLabel(ASCIIToUTF16(ascii_text), this)); |
| } |
| |
| int StyledLabelContentHeightForWidth(int w) { |
| return styled_->GetHeightForWidth(w) - styled_->GetInsets().height(); |
| } |
| |
| private: |
| scoped_ptr<StyledLabel> styled_; |
| |
| DISALLOW_COPY_AND_ASSIGN(StyledLabelTest); |
| }; |
| |
| TEST_F(StyledLabelTest, NoWrapping) { |
| const std::string text("This is a test block of text"); |
| InitStyledLabel(text); |
| Label label(ASCIIToUTF16(text)); |
| const gfx::Size label_preferred_size = label.GetPreferredSize(); |
| EXPECT_EQ(label_preferred_size.height(), |
| StyledLabelContentHeightForWidth(label_preferred_size.width() * 2)); |
| } |
| |
| TEST_F(StyledLabelTest, TrailingWhitespaceiIgnored) { |
| const std::string text("This is a test block of text "); |
| InitStyledLabel(text); |
| |
| styled()->SetBounds(0, 0, 1000, 1000); |
| styled()->Layout(); |
| |
| ASSERT_EQ(1, styled()->child_count()); |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(0)->GetClassName()); |
| EXPECT_EQ(ASCIIToUTF16("This is a test block of text"), |
| static_cast<Label*>(styled()->child_at(0))->text()); |
| } |
| |
| TEST_F(StyledLabelTest, RespectLeadingWhitespace) { |
| const std::string text(" This is a test block of text"); |
| InitStyledLabel(text); |
| |
| styled()->SetBounds(0, 0, 1000, 1000); |
| styled()->Layout(); |
| |
| ASSERT_EQ(1, styled()->child_count()); |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(0)->GetClassName()); |
| EXPECT_EQ(ASCIIToUTF16(" This is a test block of text"), |
| static_cast<Label*>(styled()->child_at(0))->text()); |
| } |
| |
| TEST_F(StyledLabelTest, FirstLineNotEmptyWhenLeadingWhitespaceTooLong) { |
| const std::string text(" a"); |
| InitStyledLabel(text); |
| |
| Label label(ASCIIToUTF16(text)); |
| gfx::Size label_preferred_size = label.GetPreferredSize(); |
| |
| styled()->SetBounds(0, 0, label_preferred_size.width() / 2, 1000); |
| styled()->Layout(); |
| |
| ASSERT_EQ(1, styled()->child_count()); |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(0)->GetClassName()); |
| EXPECT_EQ(ASCIIToUTF16("a"), |
| static_cast<Label*>(styled()->child_at(0))->text()); |
| } |
| |
| TEST_F(StyledLabelTest, BasicWrapping) { |
| const std::string text("This is a test block of text"); |
| InitStyledLabel(text); |
| Label label(ASCIIToUTF16(text.substr(0, text.size() * 2 / 3))); |
| gfx::Size label_preferred_size = label.GetPreferredSize(); |
| EXPECT_EQ(label_preferred_size.height() * 2, |
| StyledLabelContentHeightForWidth(label_preferred_size.width())); |
| |
| // Also respect the border. |
| styled()->set_border(Border::CreateEmptyBorder(3, 3, 3, 3)); |
| styled()->SetBounds( |
| 0, |
| 0, |
| styled()->GetInsets().width() + label_preferred_size.width(), |
| styled()->GetInsets().height() + 2 * label_preferred_size.height()); |
| styled()->Layout(); |
| ASSERT_EQ(2, styled()->child_count()); |
| EXPECT_EQ(3, styled()->child_at(0)->bounds().x()); |
| EXPECT_EQ(3, styled()->child_at(0)->bounds().y()); |
| EXPECT_EQ(styled()->bounds().height() - 3, |
| styled()->child_at(1)->bounds().bottom()); |
| } |
| |
| TEST_F(StyledLabelTest, CreateLinks) { |
| const std::string text("This is a test block of text."); |
| InitStyledLabel(text); |
| styled()->AddStyleRange(gfx::Range(0, 1), |
| StyledLabel::RangeStyleInfo::CreateForLink()); |
| styled()->AddStyleRange(gfx::Range(1, 2), |
| StyledLabel::RangeStyleInfo::CreateForLink()); |
| styled()->AddStyleRange(gfx::Range(10, 11), |
| StyledLabel::RangeStyleInfo::CreateForLink()); |
| styled()->AddStyleRange(gfx::Range(12, 13), |
| StyledLabel::RangeStyleInfo::CreateForLink()); |
| |
| styled()->SetBounds(0, 0, 1000, 1000); |
| styled()->Layout(); |
| ASSERT_EQ(7, styled()->child_count()); |
| } |
| |
| TEST_F(StyledLabelTest, DontBreakLinks) { |
| const std::string text("This is a test block of text, "); |
| const std::string link_text("and this should be a link"); |
| InitStyledLabel(text + link_text); |
| styled()->AddStyleRange( |
| gfx::Range(text.size(), text.size() + link_text.size()), |
| StyledLabel::RangeStyleInfo::CreateForLink()); |
| |
| Label label(ASCIIToUTF16(text + link_text.substr(0, link_text.size() / 2))); |
| gfx::Size label_preferred_size = label.GetPreferredSize(); |
| int pref_height = styled()->GetHeightForWidth(label_preferred_size.width()); |
| EXPECT_EQ(label_preferred_size.height() * 2, |
| pref_height - styled()->GetInsets().height()); |
| |
| styled()->SetBounds(0, 0, label_preferred_size.width(), pref_height); |
| styled()->Layout(); |
| ASSERT_EQ(2, styled()->child_count()); |
| EXPECT_EQ(0, styled()->child_at(0)->bounds().x()); |
| EXPECT_EQ(0, styled()->child_at(1)->bounds().x()); |
| } |
| |
| TEST_F(StyledLabelTest, StyledRangeWithDisabledLineWrapping) { |
| const std::string text("This is a test block of text, "); |
| const std::string unbreakable_text("and this should not be breaked"); |
| InitStyledLabel(text + unbreakable_text); |
| StyledLabel::RangeStyleInfo style_info; |
| style_info.disable_line_wrapping = true; |
| styled()->AddStyleRange( |
| gfx::Range(text.size(), text.size() + unbreakable_text.size()), |
| style_info); |
| |
| Label label(ASCIIToUTF16( |
| text + unbreakable_text.substr(0, unbreakable_text.size() / 2))); |
| gfx::Size label_preferred_size = label.GetPreferredSize(); |
| int pref_height = styled()->GetHeightForWidth(label_preferred_size.width()); |
| EXPECT_EQ(label_preferred_size.height() * 2, |
| pref_height - styled()->GetInsets().height()); |
| |
| styled()->SetBounds(0, 0, label_preferred_size.width(), pref_height); |
| styled()->Layout(); |
| ASSERT_EQ(2, styled()->child_count()); |
| EXPECT_EQ(0, styled()->child_at(0)->bounds().x()); |
| EXPECT_EQ(0, styled()->child_at(1)->bounds().x()); |
| } |
| |
| TEST_F(StyledLabelTest, StyledRangeUnderlined) { |
| const std::string text("This is a test block of text, "); |
| const std::string underlined_text("and this should be undelined"); |
| InitStyledLabel(text + underlined_text); |
| StyledLabel::RangeStyleInfo style_info; |
| style_info.font_style = gfx::Font::UNDERLINE; |
| styled()->AddStyleRange( |
| gfx::Range(text.size(), text.size() + underlined_text.size()), |
| style_info); |
| |
| styled()->SetBounds(0, 0, 1000, 1000); |
| styled()->Layout(); |
| |
| ASSERT_EQ(2, styled()->child_count()); |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(1)->GetClassName()); |
| EXPECT_EQ(gfx::Font::UNDERLINE, |
| static_cast<Label*>(styled()->child_at(1))->font().GetStyle()); |
| } |
| |
| TEST_F(StyledLabelTest, StyledRangeBold) { |
| const std::string bold_text( |
| "This is a block of text whose style will be set to BOLD in the test"); |
| const std::string text(" normal text"); |
| InitStyledLabel(bold_text + text); |
| |
| StyledLabel::RangeStyleInfo style_info; |
| style_info.font_style = gfx::Font::BOLD; |
| styled()->AddStyleRange(gfx::Range(0, bold_text.size()), style_info); |
| |
| // Calculate the bold text width if it were a pure label view, both with bold |
| // and normal style. |
| Label label(ASCIIToUTF16(bold_text)); |
| const gfx::Size normal_label_size = label.GetPreferredSize(); |
| label.SetFont(label.font().DeriveFont(0, gfx::Font::BOLD)); |
| const gfx::Size bold_label_size = label.GetPreferredSize(); |
| |
| ASSERT_GE(bold_label_size.width(), normal_label_size.width()); |
| |
| // Set the width so |bold_text| doesn't fit on a single line with bold style, |
| // but does with normal font style. |
| int styled_width = (normal_label_size.width() + bold_label_size.width()) / 2; |
| int pref_height = styled()->GetHeightForWidth(styled_width); |
| |
| // Sanity check that |bold_text| with normal font style would fit on a single |
| // line in a styled label with width |styled_width|. |
| StyledLabel unstyled(ASCIIToUTF16(bold_text), this); |
| unstyled.SetBounds(0, 0, styled_width, pref_height); |
| unstyled.Layout(); |
| ASSERT_EQ(1, unstyled.child_count()); |
| |
| styled()->SetBounds(0, 0, styled_width, pref_height); |
| styled()->Layout(); |
| |
| ASSERT_EQ(3, styled()->child_count()); |
| |
| // The bold text should be broken up into two parts. |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(0)->GetClassName()); |
| EXPECT_EQ(gfx::Font::BOLD, |
| static_cast<Label*>(styled()->child_at(0))->font().GetStyle()); |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(1)->GetClassName()); |
| EXPECT_EQ(gfx::Font::BOLD, |
| static_cast<Label*>(styled()->child_at(1))->font().GetStyle()); |
| ASSERT_EQ(std::string(Label::kViewClassName), |
| styled()->child_at(2)->GetClassName()); |
| EXPECT_EQ(gfx::Font::NORMAL, |
| static_cast<Label*>(styled()->child_at(2))->font().GetStyle()); |
| |
| // The second bold part should start on a new line. |
| EXPECT_EQ(0, styled()->child_at(0)->bounds().x()); |
| EXPECT_EQ(0, styled()->child_at(1)->bounds().x()); |
| EXPECT_EQ(styled()->child_at(1)->bounds().right() - 2, |
| styled()->child_at(2)->bounds().x()); |
| } |
| |
| TEST_F(StyledLabelTest, Color) { |
| const std::string text_red("RED"); |
| const std::string text_link("link"); |
| const std::string text("word"); |
| InitStyledLabel(text_red + text_link + text); |
| |
| StyledLabel::RangeStyleInfo style_info_red; |
| style_info_red.color = SK_ColorRED; |
| styled()->AddStyleRange(gfx::Range(0, text_red.size()), style_info_red); |
| |
| StyledLabel::RangeStyleInfo style_info_link = |
| StyledLabel::RangeStyleInfo::CreateForLink(); |
| styled()->AddStyleRange(gfx::Range(text_red.size(), |
| text_red.size() + text_link.size()), |
| style_info_link); |
| |
| // Obtain the default text color for a label. |
| Label label(ASCIIToUTF16(text)); |
| const SkColor kDefaultTextColor = label.enabled_color(); |
| |
| // Obtain the default text color for a link; |
| Link link(ASCIIToUTF16(text_link)); |
| const SkColor kDefaultLinkColor = link.enabled_color(); |
| |
| styled()->SetBounds(0, 0, 1000, 1000); |
| styled()->Layout(); |
| |
| EXPECT_EQ(SK_ColorRED, |
| static_cast<Label*>(styled()->child_at(0))->enabled_color()); |
| EXPECT_EQ(kDefaultLinkColor, |
| static_cast<Label*>(styled()->child_at(1))->enabled_color()); |
| EXPECT_EQ(kDefaultTextColor, |
| static_cast<Label*>(styled()->child_at(2))->enabled_color()); |
| } |
| |
| TEST_F(StyledLabelTest, ColorReadability) { |
| const std::string text( |
| "This is a block of text that needs color adjustment."); |
| InitStyledLabel(text); |
| styled()->SetDisplayedOnBackgroundColor(SK_ColorBLACK); |
| |
| // Obtain the text color if it were a pure label. |
| Label label(ASCIIToUTF16(text)); |
| label.SetBackgroundColor(SK_ColorBLACK); |
| |
| styled()->SetBounds(0, 0, 1000, 1000); |
| styled()->Layout(); |
| |
| EXPECT_EQ(label.enabled_color(), |
| static_cast<Label*>(styled()->child_at(0))->enabled_color()); |
| } |
| |
| TEST_F(StyledLabelTest, StyledRangeWithTooltip) { |
| const std::string text("This is a test block of text, "); |
| const std::string tooltip_text("this should have a tooltip,"); |
| const std::string normal_text(" this should not have a tooltip, "); |
| const std::string link_text("and this should be a link"); |
| |
| const size_t tooltip_start = text.size(); |
| const size_t link_start = |
| text.size() + tooltip_text.size() + normal_text.size(); |
| |
| InitStyledLabel(text + tooltip_text + normal_text + link_text); |
| StyledLabel::RangeStyleInfo tooltip_style; |
| tooltip_style.tooltip = ASCIIToUTF16("tooltip"); |
| styled()->AddStyleRange( |
| gfx::Range(tooltip_start, tooltip_start + tooltip_text.size()), |
| tooltip_style); |
| styled()->AddStyleRange(gfx::Range(link_start, link_start + link_text.size()), |
| StyledLabel::RangeStyleInfo::CreateForLink()); |
| |
| // Break line inside the range with the tooltip. |
| Label label(ASCIIToUTF16( |
| text + tooltip_text.substr(0, tooltip_text.size() - 3))); |
| gfx::Size label_preferred_size = label.GetPreferredSize(); |
| int pref_height = styled()->GetHeightForWidth(label_preferred_size.width()); |
| EXPECT_EQ(label_preferred_size.height() * 3, |
| pref_height - styled()->GetInsets().height()); |
| |
| styled()->SetBounds(0, 0, label_preferred_size.width(), pref_height); |
| styled()->Layout(); |
| |
| EXPECT_EQ(label_preferred_size.width(), styled()->width()); |
| |
| ASSERT_EQ(5, styled()->child_count()); |
| EXPECT_EQ(0, styled()->child_at(0)->bounds().x()); |
| EXPECT_EQ(styled()->child_at(0)->bounds().right() - 2, |
| styled()->child_at(1)->bounds().x()); |
| EXPECT_EQ(0, styled()->child_at(2)->bounds().x()); |
| EXPECT_EQ(styled()->child_at(2)->bounds().right() - 2, |
| styled()->child_at(3)->bounds().x()); |
| EXPECT_EQ(0, styled()->child_at(4)->bounds().x()); |
| |
| string16 tooltip; |
| EXPECT_TRUE( |
| styled()->child_at(1)->GetTooltipText(gfx::Point(1, 1), &tooltip)); |
| EXPECT_EQ(ASCIIToUTF16("tooltip"), tooltip); |
| EXPECT_TRUE( |
| styled()->child_at(2)->GetTooltipText(gfx::Point(1, 1), &tooltip)); |
| EXPECT_EQ(ASCIIToUTF16("tooltip"), tooltip); |
| } |
| |
| TEST_F(StyledLabelTest, HandleEmptyLayout) { |
| const std::string text("This is a test block of text, "); |
| InitStyledLabel(text); |
| styled()->Layout(); |
| ASSERT_EQ(0, styled()->child_count()); |
| } |
| |
| } // namespace |