461 lines
12 KiB
C++
461 lines
12 KiB
C++
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// 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/dom_node_impl.h"
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#include "libcef/browser_impl.h"
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#include "libcef/cef_thread.h"
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#include "libcef/dom_document_impl.h"
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#include "libcef/dom_event_impl.h"
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#include "libcef/tracker.h"
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#include "base/logging.h"
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#include "base/string_util.h"
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#include "base/threading/non_thread_safe.h"
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#include "base/utf_string_conversions.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebDOMEvent.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebDOMEventListener.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebFormControlElement.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebSelectElement.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
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using WebKit::WebDocument;
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using WebKit::WebDOMEvent;
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using WebKit::WebDOMEventListener;
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using WebKit::WebElement;
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using WebKit::WebFrame;
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using WebKit::WebFormControlElement;
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using WebKit::WebInputElement;
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using WebKit::WebNode;
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using WebKit::WebSelectElement;
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using WebKit::WebString;
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namespace {
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// Wrapper implementation for WebDOMEventListener.
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class CefDOMEventListenerWrapper : public WebDOMEventListener,
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public CefTrackNode,
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public base::NonThreadSafe {
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public:
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CefDOMEventListenerWrapper(CefBrowserImpl* browser, WebFrame* frame,
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CefRefPtr<CefDOMEventListener> listener)
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: browser_(browser),
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frame_(frame),
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listener_(listener) {
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// Cause this object to be deleted immediately before the frame is closed.
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browser->UIT_AddFrameObject(frame, this);
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}
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virtual ~CefDOMEventListenerWrapper() {
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}
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virtual void handleEvent(const WebDOMEvent& event) {
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CefRefPtr<CefDOMDocumentImpl> documentImpl;
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CefRefPtr<CefDOMEventImpl> eventImpl;
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if (!event.isNull()) {
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// Create CefDOMDocumentImpl and CefDOMEventImpl objects that are valid
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// only for the scope of this method.
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const WebDocument& document = frame_->document();
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if (!document.isNull()) {
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documentImpl = new CefDOMDocumentImpl(browser_, frame_);
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eventImpl = new CefDOMEventImpl(documentImpl, event);
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}
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}
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listener_->HandleEvent(eventImpl.get());
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if (eventImpl.get())
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eventImpl->Detach();
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if (documentImpl.get())
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documentImpl->Detach();
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}
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protected:
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CefBrowserImpl* browser_;
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WebFrame* frame_;
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CefRefPtr<CefDOMEventListener> listener_;
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};
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} // namespace
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CefDOMNodeImpl::CefDOMNodeImpl(CefRefPtr<CefDOMDocumentImpl> document,
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const WebKit::WebNode& node)
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: document_(document),
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node_(node) {
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}
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CefDOMNodeImpl::~CefDOMNodeImpl() {
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REQUIRE_UIT();
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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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switch (node_.nodeType()) {
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case WebNode::ElementNode:
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return DOM_NODE_TYPE_ELEMENT;
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case WebNode::AttributeNode:
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return DOM_NODE_TYPE_ATTRIBUTE;
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case WebNode::TextNode:
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return DOM_NODE_TYPE_TEXT;
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case WebNode::CDataSectionNode:
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return DOM_NODE_TYPE_CDATA_SECTION;
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case WebNode::EntityReferenceNode:
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return DOM_NODE_TYPE_ENTITY_REFERENCE;
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case WebNode::EntityNode:
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return DOM_NODE_TYPE_ENTITY;
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case WebNode::ProcessingInstructionsNode:
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return DOM_NODE_TYPE_PROCESSING_INSTRUCTIONS;
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case WebNode::CommentNode:
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return DOM_NODE_TYPE_COMMENT;
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case WebNode::DocumentNode:
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return DOM_NODE_TYPE_DOCUMENT;
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case WebNode::DocumentTypeNode:
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return DOM_NODE_TYPE_DOCUMENT_TYPE;
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case WebNode::DocumentFragmentNode:
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return DOM_NODE_TYPE_DOCUMENT_FRAGMENT;
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case WebNode::NotationNode:
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return DOM_NODE_TYPE_NOTATION;
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case WebNode::XPathNamespaceNode:
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return DOM_NODE_TYPE_XPATH_NAMESPACE;
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default:
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return DOM_NODE_TYPE_UNSUPPORTED;
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}
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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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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 string16& form_control_type = formElement.formControlType();
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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 = node_.nodeName();
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if (!name.isNull())
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str = name;
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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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string16 value;
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const string16& form_control_type = formElement.formControlType();
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if (form_control_type == 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();
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} else if (form_control_type == 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();
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}
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TrimWhitespace(value, 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;
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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 node_.setNodeValue(string16(value));
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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 = node_.createMarkup();
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if (!markup.isNull())
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str = markup;
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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 NULL;
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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 NULL;
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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 NULL;
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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 NULL;
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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_.hasChildNodes();
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}
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CefRefPtr<CefDOMNode> CefDOMNodeImpl::GetFirstChild() {
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if (!VerifyContext())
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return NULL;
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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 NULL;
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return document_->GetOrCreateNode(node_.lastChild());
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}
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void CefDOMNodeImpl::AddEventListener(const CefString& eventType,
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CefRefPtr<CefDOMEventListener> listener,
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bool useCapture) {
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if (!VerifyContext())
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return;
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node_.addEventListener(string16(eventType),
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new CefDOMEventListenerWrapper(document_->GetBrowser(),
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document_->GetFrame(), listener),
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useCapture);
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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<WebKit::WebElement>();
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const WebString& tagname = element.tagName();
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if (!tagname.isNull())
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str = tagname;
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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<WebKit::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<WebKit::WebElement>();
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return element.hasAttribute(string16(attrName));
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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<WebKit::WebElement>();
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const WebString& attr = element.getAttribute(string16(attrName));
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if (!attr.isNull())
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str = attr;
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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<WebKit::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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string16 name = element.attributeLocalName(i);
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string16 value = element.attributeValue(i);
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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<WebKit::WebElement>();
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return element.setAttribute(string16(attrName), string16(value));
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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<WebKit::WebElement>();
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const WebString& text = element.innerText();
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if (!text.isNull())
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str = text;
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return str;
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}
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void CefDOMNodeImpl::Detach() {
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document_ = NULL;
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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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