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| 1 /* | |
| 2 * Copyright (C) 2012 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND | |
| 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE | |
| 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 23 * SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "core/html/shadow/DateTimeFieldElement.h" | |
| 27 | |
| 28 #include "core/HTMLNames.h" | |
| 29 #include "core/dom/Document.h" | |
| 30 #include "core/dom/StyleChangeReason.h" | |
| 31 #include "core/dom/Text.h" | |
| 32 #include "core/events/KeyboardEvent.h" | |
| 33 #include "core/layout/TextRunConstructor.h" | |
| 34 #include "core/style/ComputedStyle.h" | |
| 35 #include "platform/text/PlatformLocale.h" | |
| 36 #include "platform/wtf/text/WTFString.h" | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 using namespace HTMLNames; | |
| 41 | |
| 42 DateTimeFieldElement::FieldOwner::~FieldOwner() {} | |
| 43 | |
| 44 DateTimeFieldElement::DateTimeFieldElement(Document& document, | |
| 45 FieldOwner& field_owner) | |
| 46 : HTMLSpanElement(document), field_owner_(&field_owner) {} | |
| 47 | |
| 48 DEFINE_TRACE(DateTimeFieldElement) { | |
| 49 visitor->Trace(field_owner_); | |
| 50 HTMLSpanElement::Trace(visitor); | |
| 51 } | |
| 52 | |
| 53 float DateTimeFieldElement::ComputeTextWidth(const ComputedStyle& style, | |
| 54 const String& text) { | |
| 55 return style.GetFont().Width(ConstructTextRun(style.GetFont(), text, style)); | |
| 56 } | |
| 57 | |
| 58 void DateTimeFieldElement::DefaultEventHandler(Event* event) { | |
| 59 if (event->IsKeyboardEvent()) { | |
| 60 KeyboardEvent* keyboard_event = ToKeyboardEvent(event); | |
| 61 if (!IsDisabled() && !IsFieldOwnerDisabled() && !IsFieldOwnerReadOnly()) { | |
| 62 HandleKeyboardEvent(keyboard_event); | |
| 63 if (keyboard_event->DefaultHandled()) { | |
| 64 if (field_owner_) | |
| 65 field_owner_->FieldDidChangeValueByKeyboard(); | |
| 66 return; | |
| 67 } | |
| 68 } | |
| 69 DefaultKeyboardEventHandler(keyboard_event); | |
| 70 if (field_owner_) | |
| 71 field_owner_->FieldDidChangeValueByKeyboard(); | |
| 72 if (keyboard_event->DefaultHandled()) | |
| 73 return; | |
| 74 } | |
| 75 | |
| 76 HTMLElement::DefaultEventHandler(event); | |
| 77 } | |
| 78 | |
| 79 void DateTimeFieldElement::DefaultKeyboardEventHandler( | |
| 80 KeyboardEvent* keyboard_event) { | |
| 81 if (keyboard_event->type() != EventTypeNames::keydown) | |
| 82 return; | |
| 83 | |
| 84 if (IsDisabled() || IsFieldOwnerDisabled()) | |
| 85 return; | |
| 86 | |
| 87 const String& key = keyboard_event->key(); | |
| 88 | |
| 89 if (key == "ArrowLeft") { | |
| 90 if (!field_owner_) | |
| 91 return; | |
| 92 // FIXME: We'd like to use FocusController::advanceFocus(FocusDirectionLeft, | |
| 93 // ...) but it doesn't work for shadow nodes. webkit.org/b/104650 | |
| 94 if (!LocaleForOwner().IsRTL() && field_owner_->FocusOnPreviousField(*this)) | |
| 95 keyboard_event->SetDefaultHandled(); | |
| 96 return; | |
| 97 } | |
| 98 | |
| 99 if (key == "ArrowRight") { | |
| 100 if (!field_owner_) | |
| 101 return; | |
| 102 // FIXME: We'd like to use | |
| 103 // FocusController::advanceFocus(FocusDirectionRight, ...) | |
| 104 // but it doesn't work for shadow nodes. webkit.org/b/104650 | |
| 105 if (!LocaleForOwner().IsRTL() && field_owner_->FocusOnNextField(*this)) | |
| 106 keyboard_event->SetDefaultHandled(); | |
| 107 return; | |
| 108 } | |
| 109 | |
| 110 if (IsFieldOwnerReadOnly()) | |
| 111 return; | |
| 112 | |
| 113 if (key == "ArrowDown") { | |
| 114 if (keyboard_event->getModifierState("Alt")) | |
| 115 return; | |
| 116 keyboard_event->SetDefaultHandled(); | |
| 117 StepDown(); | |
| 118 return; | |
| 119 } | |
| 120 | |
| 121 if (key == "ArrowUp") { | |
| 122 keyboard_event->SetDefaultHandled(); | |
| 123 StepUp(); | |
| 124 return; | |
| 125 } | |
| 126 | |
| 127 if (key == "Backspace" || key == "Delete") { | |
| 128 keyboard_event->SetDefaultHandled(); | |
| 129 SetEmptyValue(kDispatchEvent); | |
| 130 return; | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 void DateTimeFieldElement::SetFocused(bool value, WebFocusType focus_type) { | |
| 135 if (field_owner_) { | |
| 136 if (value) { | |
| 137 field_owner_->DidFocusOnField(focus_type); | |
| 138 } else { | |
| 139 field_owner_->DidBlurFromField(focus_type); | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 ContainerNode::SetFocused(value, focus_type); | |
| 144 } | |
| 145 | |
| 146 void DateTimeFieldElement::FocusOnNextField() { | |
| 147 if (!field_owner_) | |
| 148 return; | |
| 149 field_owner_->FocusOnNextField(*this); | |
| 150 } | |
| 151 | |
| 152 void DateTimeFieldElement::Initialize(const AtomicString& pseudo, | |
| 153 const String& ax_help_text, | |
| 154 int ax_minimum, | |
| 155 int ax_maximum) { | |
| 156 // On accessibility, DateTimeFieldElement acts like spin button. | |
| 157 setAttribute(roleAttr, AtomicString("spinbutton")); | |
| 158 setAttribute(aria_valuetextAttr, AtomicString(VisibleValue())); | |
| 159 setAttribute(aria_valueminAttr, AtomicString::Number(ax_minimum)); | |
| 160 setAttribute(aria_valuemaxAttr, AtomicString::Number(ax_maximum)); | |
| 161 | |
| 162 setAttribute(aria_helpAttr, AtomicString(ax_help_text)); | |
| 163 SetShadowPseudoId(pseudo); | |
| 164 AppendChild(Text::Create(GetDocument(), VisibleValue())); | |
| 165 } | |
| 166 | |
| 167 bool DateTimeFieldElement::IsDateTimeFieldElement() const { | |
| 168 return true; | |
| 169 } | |
| 170 | |
| 171 bool DateTimeFieldElement::IsFieldOwnerDisabled() const { | |
| 172 return field_owner_ && field_owner_->IsFieldOwnerDisabled(); | |
| 173 } | |
| 174 | |
| 175 bool DateTimeFieldElement::IsFieldOwnerReadOnly() const { | |
| 176 return field_owner_ && field_owner_->IsFieldOwnerReadOnly(); | |
| 177 } | |
| 178 | |
| 179 bool DateTimeFieldElement::IsDisabled() const { | |
| 180 return FastHasAttribute(disabledAttr); | |
| 181 } | |
| 182 | |
| 183 Locale& DateTimeFieldElement::LocaleForOwner() const { | |
| 184 return GetDocument().GetCachedLocale(LocaleIdentifier()); | |
| 185 } | |
| 186 | |
| 187 AtomicString DateTimeFieldElement::LocaleIdentifier() const { | |
| 188 return field_owner_ ? field_owner_->LocaleIdentifier() : g_null_atom; | |
| 189 } | |
| 190 | |
| 191 float DateTimeFieldElement::MaximumWidth(const ComputedStyle&) { | |
| 192 const float kPaddingLeftAndRight = 2; // This should match to html.css. | |
| 193 return kPaddingLeftAndRight; | |
| 194 } | |
| 195 | |
| 196 void DateTimeFieldElement::SetDisabled() { | |
| 197 // Set HTML attribute disabled to change apperance. | |
| 198 SetBooleanAttribute(disabledAttr, true); | |
| 199 SetNeedsStyleRecalc( | |
| 200 kSubtreeStyleChange, | |
| 201 StyleChangeReasonForTracing::CreateWithExtraData( | |
| 202 StyleChangeReason::kPseudoClass, StyleChangeExtraData::g_disabled)); | |
| 203 } | |
| 204 | |
| 205 bool DateTimeFieldElement::SupportsFocus() const { | |
| 206 return !IsDisabled() && !IsFieldOwnerDisabled(); | |
| 207 } | |
| 208 | |
| 209 void DateTimeFieldElement::UpdateVisibleValue(EventBehavior event_behavior) { | |
| 210 Text* const text_node = ToText(FirstChild()); | |
| 211 const String new_visible_value = VisibleValue(); | |
| 212 DCHECK_GT(new_visible_value.length(), 0u); | |
| 213 | |
| 214 if (text_node->wholeText() == new_visible_value) | |
| 215 return; | |
| 216 | |
| 217 text_node->ReplaceWholeText(new_visible_value); | |
| 218 if (HasValue()) { | |
| 219 setAttribute(aria_valuenowAttr, | |
| 220 AtomicString::Number(ValueForARIAValueNow())); | |
| 221 } else { | |
| 222 removeAttribute(aria_valuenowAttr); | |
| 223 } | |
| 224 setAttribute(aria_valuetextAttr, AtomicString(new_visible_value)); | |
| 225 | |
| 226 if (event_behavior == kDispatchEvent && field_owner_) | |
| 227 field_owner_->FieldValueChanged(); | |
| 228 } | |
| 229 | |
| 230 int DateTimeFieldElement::ValueForARIAValueNow() const { | |
| 231 return ValueAsInteger(); | |
| 232 } | |
| 233 | |
| 234 } // namespace blink | |
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Chromium Code Reviews
Issue 2815263002:
Move form-related files in core/html/shadow to core/html/forms. (Closed)
