mirror of
https://bitbucket.org/chromiumembedded/cef
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251 lines
6.1 KiB
C++
251 lines
6.1 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_document_impl.h"
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#include "libcef/renderer/dom_node_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 "third_party/blink/public/platform/web_string.h"
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#include "third_party/blink/public/platform/web_url.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_element.h"
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#include "third_party/blink/public/web/web_local_frame.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_range.h"
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using blink::WebDocument;
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using blink::WebElement;
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using blink::WebLocalFrame;
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using blink::WebNode;
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using blink::WebRange;
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using blink::WebString;
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using blink::WebURL;
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CefDOMDocumentImpl::CefDOMDocumentImpl(CefBrowserImpl* browser,
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WebLocalFrame* frame)
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: browser_(browser), frame_(frame) {
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const WebDocument& document = frame_->GetDocument();
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DCHECK(!document.IsNull());
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}
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CefDOMDocumentImpl::~CefDOMDocumentImpl() {
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CEF_REQUIRE_RT();
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// Verify that the Detach() method has been called.
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DCHECK(frame_ == NULL);
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}
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CefDOMDocumentImpl::Type CefDOMDocumentImpl::GetType() {
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if (!VerifyContext())
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return DOM_DOCUMENT_TYPE_UNKNOWN;
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const WebDocument& document = frame_->GetDocument();
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if (document.IsHTMLDocument())
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return DOM_DOCUMENT_TYPE_HTML;
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if (document.IsXHTMLDocument())
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return DOM_DOCUMENT_TYPE_XHTML;
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if (document.IsPluginDocument())
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return DOM_DOCUMENT_TYPE_PLUGIN;
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return DOM_DOCUMENT_TYPE_UNKNOWN;
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}
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CefRefPtr<CefDOMNode> CefDOMDocumentImpl::GetDocument() {
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const WebDocument& document = frame_->GetDocument();
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return GetOrCreateNode(document.GetDocument());
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}
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CefRefPtr<CefDOMNode> CefDOMDocumentImpl::GetBody() {
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const WebDocument& document = frame_->GetDocument();
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return GetOrCreateNode(document.Body());
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}
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CefRefPtr<CefDOMNode> CefDOMDocumentImpl::GetHead() {
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WebDocument document = frame_->GetDocument();
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return GetOrCreateNode(document.Head());
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}
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CefString CefDOMDocumentImpl::GetTitle() {
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CefString str;
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if (!VerifyContext())
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return str;
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const WebDocument& document = frame_->GetDocument();
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const WebString& title = document.Title();
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if (!title.IsNull())
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str = title.Utf16();
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return str;
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}
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CefRefPtr<CefDOMNode> CefDOMDocumentImpl::GetElementById(const CefString& id) {
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const WebDocument& document = frame_->GetDocument();
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return GetOrCreateNode(
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document.GetElementById(WebString::FromUTF16(id.ToString16())));
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}
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CefRefPtr<CefDOMNode> CefDOMDocumentImpl::GetFocusedNode() {
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const WebDocument& document = frame_->GetDocument();
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return GetOrCreateNode(document.FocusedElement());
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}
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bool CefDOMDocumentImpl::HasSelection() {
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if (!VerifyContext())
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return false;
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return frame_->HasSelection();
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}
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int CefDOMDocumentImpl::GetSelectionStartOffset() {
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if (!VerifyContext())
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return 0;
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if (!frame_->HasSelection())
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return 0;
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const WebRange& range = frame_->SelectionRange();
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if (range.IsNull())
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return 0;
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return range.StartOffset();
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}
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int CefDOMDocumentImpl::GetSelectionEndOffset() {
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if (!VerifyContext())
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return 0;
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if (!frame_->HasSelection())
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return 0;
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const WebRange& range = frame_->SelectionRange();
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if (range.IsNull())
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return 0;
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return range.EndOffset();
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}
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CefString CefDOMDocumentImpl::GetSelectionAsMarkup() {
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CefString str;
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if (!VerifyContext())
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return str;
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if (!frame_->HasSelection())
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return str;
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const WebString& markup = frame_->SelectionAsMarkup();
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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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CefString CefDOMDocumentImpl::GetSelectionAsText() {
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CefString str;
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if (!VerifyContext())
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return str;
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if (!frame_->HasSelection())
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return str;
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const WebString& text = frame_->SelectionAsText();
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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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CefString CefDOMDocumentImpl::GetBaseURL() {
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CefString str;
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if (!VerifyContext())
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return str;
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const WebDocument& document = frame_->GetDocument();
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const WebURL& url = document.BaseURL();
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if (!url.IsNull()) {
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GURL gurl = url;
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str = gurl.spec();
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}
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return str;
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}
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CefString CefDOMDocumentImpl::GetCompleteURL(const CefString& partialURL) {
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CefString str;
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if (!VerifyContext())
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return str;
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const WebDocument& document = frame_->GetDocument();
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const WebURL& url =
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document.CompleteURL(WebString::FromUTF16(partialURL.ToString16()));
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if (!url.IsNull()) {
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GURL gurl = url;
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str = gurl.spec();
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}
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return str;
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}
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CefRefPtr<CefDOMNode> CefDOMDocumentImpl::GetOrCreateNode(
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const blink::WebNode& node) {
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if (!VerifyContext())
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return NULL;
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// Nodes may potentially be null.
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if (node.IsNull())
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return NULL;
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if (!node_map_.empty()) {
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// Locate the existing node, if any.
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NodeMap::const_iterator it = node_map_.find(node);
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if (it != node_map_.end())
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return it->second;
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}
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// Create the new node object.
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CefRefPtr<CefDOMNode> nodeImpl(new CefDOMNodeImpl(this, node));
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node_map_.insert(std::make_pair(node, nodeImpl.get()));
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return nodeImpl;
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}
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void CefDOMDocumentImpl::RemoveNode(const blink::WebNode& node) {
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if (!VerifyContext())
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return;
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if (!node_map_.empty()) {
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NodeMap::iterator it = node_map_.find(node);
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if (it != node_map_.end())
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node_map_.erase(it);
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}
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}
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void CefDOMDocumentImpl::Detach() {
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if (!VerifyContext())
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return;
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// If you hit this assert it means that you are keeping references to node
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// objects beyond the valid scope.
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DCHECK(node_map_.empty());
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// If you hit this assert it means that you are keeping references to this
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// document object beyond the valid scope.
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DCHECK(HasOneRef());
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if (!node_map_.empty()) {
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NodeMap::const_iterator it = node_map_.begin();
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for (; it != node_map_.end(); ++it)
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static_cast<CefDOMNodeImpl*>(it->second)->Detach();
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node_map_.clear();
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}
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frame_ = NULL;
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}
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bool CefDOMDocumentImpl::VerifyContext() {
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if (!CEF_CURRENTLY_ON_RT() || frame_ == NULL) {
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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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