mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2024-12-14 18:44:56 +01:00
417 lines
10 KiB
C++
417 lines
10 KiB
C++
// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include "libcef/renderer/dom_node_impl.h"
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#include "libcef/common/tracker.h"
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#include "libcef/renderer/blink_glue.h"
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#include "libcef/renderer/browser_impl.h"
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#include "libcef/renderer/dom_document_impl.h"
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#include "libcef/renderer/thread_util.h"
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#include "base/logging.h"
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#include "base/strings/string_util.h"
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#include "base/strings/utf_string_conversions.h"
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#include "third_party/blink/public/platform/web_string.h"
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#include "third_party/blink/public/web/web_document.h"
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#include "third_party/blink/public/web/web_dom_event.h"
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#include "third_party/blink/public/web/web_element.h"
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#include "third_party/blink/public/web/web_form_control_element.h"
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#include "third_party/blink/public/web/web_input_element.h"
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#include "third_party/blink/public/web/web_node.h"
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#include "third_party/blink/public/web/web_select_element.h"
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using blink::WebDocument;
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using blink::WebDOMEvent;
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using blink::WebElement;
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using blink::WebFormControlElement;
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using blink::WebInputElement;
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using blink::WebNode;
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using blink::WebSelectElement;
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using blink::WebString;
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CefDOMNodeImpl::CefDOMNodeImpl(CefRefPtr<CefDOMDocumentImpl> document,
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const blink::WebNode& node)
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: document_(document), node_(node) {}
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CefDOMNodeImpl::~CefDOMNodeImpl() {
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CEF_REQUIRE_RT();
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if (document_.get() && !node_.IsNull()) {
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// Remove the node from the document.
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document_->RemoveNode(node_);
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}
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}
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CefDOMNodeImpl::Type CefDOMNodeImpl::GetType() {
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if (!VerifyContext())
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return DOM_NODE_TYPE_UNSUPPORTED;
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return blink_glue::GetNodeType(node_);
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}
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bool CefDOMNodeImpl::IsText() {
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if (!VerifyContext())
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return false;
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return node_.IsTextNode();
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}
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bool CefDOMNodeImpl::IsElement() {
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if (!VerifyContext())
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return false;
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return node_.IsElementNode();
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}
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// Logic copied from RenderViewImpl::IsEditableNode.
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bool CefDOMNodeImpl::IsEditable() {
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if (!VerifyContext())
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return false;
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if (node_.IsContentEditable())
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return true;
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if (node_.IsElementNode()) {
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const WebElement& element = node_.ToConst<WebElement>();
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if (blink_glue::IsTextControlElement(element))
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return true;
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// Also return true if it has an ARIA role of 'textbox'.
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for (unsigned i = 0; i < element.AttributeCount(); ++i) {
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if (base::LowerCaseEqualsASCII(element.AttributeLocalName(i).Utf8(),
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"role")) {
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if (base::LowerCaseEqualsASCII(element.AttributeValue(i).Utf8(),
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"textbox")) {
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return true;
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}
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break;
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}
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}
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}
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return false;
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}
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bool CefDOMNodeImpl::IsFormControlElement() {
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if (!VerifyContext())
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return false;
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if (node_.IsElementNode()) {
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const WebElement& element = node_.ToConst<WebElement>();
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return element.IsFormControlElement();
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}
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return false;
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}
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CefString CefDOMNodeImpl::GetFormControlElementType() {
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CefString str;
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if (!VerifyContext())
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return str;
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if (node_.IsElementNode()) {
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const WebElement& element = node_.ToConst<WebElement>();
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if (element.IsFormControlElement()) {
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// Retrieve the type from the form control element.
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const WebFormControlElement& formElement =
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node_.ToConst<WebFormControlElement>();
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const base::string16& form_control_type =
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formElement.FormControlType().Utf16();
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str = form_control_type;
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}
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}
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return str;
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}
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bool CefDOMNodeImpl::IsSame(CefRefPtr<CefDOMNode> that) {
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if (!VerifyContext())
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return false;
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CefDOMNodeImpl* impl = static_cast<CefDOMNodeImpl*>(that.get());
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if (!impl || !impl->VerifyContext())
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return false;
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return node_.Equals(impl->node_);
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}
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CefString CefDOMNodeImpl::GetName() {
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CefString str;
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if (!VerifyContext())
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return str;
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const WebString& name = blink_glue::GetNodeName(node_);
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if (!name.IsNull())
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str = name.Utf16();
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return str;
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}
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CefString CefDOMNodeImpl::GetValue() {
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CefString str;
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if (!VerifyContext())
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return str;
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if (node_.IsElementNode()) {
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const WebElement& element = node_.ToConst<WebElement>();
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if (element.IsFormControlElement()) {
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// Retrieve the value from the form control element.
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const WebFormControlElement& formElement =
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node_.ToConst<WebFormControlElement>();
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base::string16 value;
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const base::string16& form_control_type =
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formElement.FormControlType().Utf16();
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if (form_control_type == base::ASCIIToUTF16("text")) {
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const WebInputElement& input_element =
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formElement.ToConst<WebInputElement>();
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value = input_element.Value().Utf16();
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} else if (form_control_type == base::ASCIIToUTF16("select-one")) {
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const WebSelectElement& select_element =
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formElement.ToConst<WebSelectElement>();
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value = select_element.Value().Utf16();
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}
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base::TrimWhitespace(value, base::TRIM_LEADING, &value);
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str = value;
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}
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}
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if (str.empty()) {
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const WebString& value = node_.NodeValue();
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if (!value.IsNull())
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str = value.Utf16();
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}
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return str;
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}
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bool CefDOMNodeImpl::SetValue(const CefString& value) {
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if (!VerifyContext())
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return false;
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if (node_.IsElementNode())
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return false;
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return blink_glue::SetNodeValue(node_,
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WebString::FromUTF16(value.ToString16()));
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}
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CefString CefDOMNodeImpl::GetAsMarkup() {
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CefString str;
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if (!VerifyContext())
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return str;
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const WebString& markup = blink_glue::CreateNodeMarkup(node_);
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if (!markup.IsNull())
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str = markup.Utf16();
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return str;
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}
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CefRefPtr<CefDOMDocument> CefDOMNodeImpl::GetDocument() {
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if (!VerifyContext())
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return nullptr;
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return document_.get();
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}
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CefRefPtr<CefDOMNode> CefDOMNodeImpl::GetParent() {
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if (!VerifyContext())
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return nullptr;
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return document_->GetOrCreateNode(node_.ParentNode());
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}
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CefRefPtr<CefDOMNode> CefDOMNodeImpl::GetPreviousSibling() {
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if (!VerifyContext())
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return nullptr;
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return document_->GetOrCreateNode(node_.PreviousSibling());
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}
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CefRefPtr<CefDOMNode> CefDOMNodeImpl::GetNextSibling() {
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if (!VerifyContext())
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return nullptr;
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return document_->GetOrCreateNode(node_.NextSibling());
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}
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bool CefDOMNodeImpl::HasChildren() {
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if (!VerifyContext())
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return false;
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return !node_.FirstChild().IsNull();
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}
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CefRefPtr<CefDOMNode> CefDOMNodeImpl::GetFirstChild() {
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if (!VerifyContext())
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return nullptr;
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return document_->GetOrCreateNode(node_.FirstChild());
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}
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CefRefPtr<CefDOMNode> CefDOMNodeImpl::GetLastChild() {
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if (!VerifyContext())
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return nullptr;
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return document_->GetOrCreateNode(node_.LastChild());
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}
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CefString CefDOMNodeImpl::GetElementTagName() {
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CefString str;
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if (!VerifyContext())
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return str;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return str;
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}
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const WebElement& element = node_.ToConst<blink::WebElement>();
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const WebString& tagname = element.TagName();
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if (!tagname.IsNull())
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str = tagname.Utf16();
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return str;
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}
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bool CefDOMNodeImpl::HasElementAttributes() {
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if (!VerifyContext())
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return false;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return false;
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}
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const WebElement& element = node_.ToConst<blink::WebElement>();
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return (element.AttributeCount() > 0);
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}
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bool CefDOMNodeImpl::HasElementAttribute(const CefString& attrName) {
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if (!VerifyContext())
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return false;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return false;
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}
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const WebElement& element = node_.ToConst<blink::WebElement>();
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return element.HasAttribute(WebString::FromUTF16(attrName.ToString16()));
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}
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CefString CefDOMNodeImpl::GetElementAttribute(const CefString& attrName) {
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CefString str;
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if (!VerifyContext())
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return str;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return str;
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}
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const WebElement& element = node_.ToConst<blink::WebElement>();
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const WebString& attr =
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element.GetAttribute(WebString::FromUTF16(attrName.ToString16()));
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if (!attr.IsNull())
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str = attr.Utf16();
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return str;
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}
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void CefDOMNodeImpl::GetElementAttributes(AttributeMap& attrMap) {
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if (!VerifyContext())
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return;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return;
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}
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const WebElement& element = node_.ToConst<blink::WebElement>();
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unsigned int len = element.AttributeCount();
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if (len == 0)
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return;
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for (unsigned int i = 0; i < len; ++i) {
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base::string16 name = element.AttributeLocalName(i).Utf16();
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base::string16 value = element.AttributeValue(i).Utf16();
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attrMap.insert(std::make_pair(name, value));
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}
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}
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bool CefDOMNodeImpl::SetElementAttribute(const CefString& attrName,
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const CefString& value) {
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if (!VerifyContext())
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return false;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return false;
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}
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WebElement element = node_.To<blink::WebElement>();
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element.SetAttribute(WebString::FromUTF16(attrName.ToString16()),
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WebString::FromUTF16(value.ToString16()));
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return true;
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}
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CefString CefDOMNodeImpl::GetElementInnerText() {
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CefString str;
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if (!VerifyContext())
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return str;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return str;
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}
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WebElement element = node_.To<blink::WebElement>();
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const WebString& text = element.TextContent();
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if (!text.IsNull())
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str = text.Utf16();
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return str;
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}
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CefRect CefDOMNodeImpl::GetElementBounds() {
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CefRect rect;
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if (!VerifyContext())
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return rect;
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if (!node_.IsElementNode()) {
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NOTREACHED();
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return rect;
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}
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WebElement element = node_.To<blink::WebElement>();
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blink::WebRect rc = element.BoundsInViewport();
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rect.Set(rc.x, rc.y, rc.width, rc.height);
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return rect;
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}
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void CefDOMNodeImpl::Detach() {
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document_ = nullptr;
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node_.Assign(WebNode());
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}
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bool CefDOMNodeImpl::VerifyContext() {
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if (!document_.get()) {
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NOTREACHED();
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return false;
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}
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if (!document_->VerifyContext())
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return false;
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if (node_.IsNull()) {
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NOTREACHED();
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return false;
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}
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return true;
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}
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