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94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
2 years ago
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// Copyright 2008, Google Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// 3. Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file contains the declaration of the GetLinks() function and the
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// definition of the GetLinksParserObserver.
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#ifndef KML_ENGINE_GET_LINKS_H__
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#define KML_ENGINE_GET_LINKS_H__
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#include <vector>
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#include "kml/dom.h"
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#include "kml/dom/parser_observer.h"
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namespace kmlengine {
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typedef std::vector<string> href_vector_t;
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// This ParserObserver looks for all elements with an "href" and saves the
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// content of each to the passed vector.
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class GetLinksParserObserver : public kmldom::ParserObserver {
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public:
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GetLinksParserObserver(href_vector_t* href_vector)
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: href_vector_(href_vector) {}
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virtual ~GetLinksParserObserver() {}
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virtual bool AddChild(const kmldom::ElementPtr& parent,
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const kmldom::ElementPtr& child) {
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switch (child->Type()) {
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default:
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break;
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case kmldom::Type_href:
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// NetworkLink/Link/href, Overlay/Icon/href, ItemIcon/href
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// Model/Link/href, IconStyle/Icon/href
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href_vector_->push_back(child->get_char_data());
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break;
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case kmldom::Type_targetHref:
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if (kmldom::Type_Alias == parent->Type()) {
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href_vector_->push_back(child->get_char_data());
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}
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break;
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case kmldom::Type_styleUrl:
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href_vector_->push_back(child->get_char_data());
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break;
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case kmldom::Type_SchemaData:
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kmldom::SchemaDataPtr schemadata = kmldom::AsSchemaData(child);
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if (schemadata->has_schemaurl()) {
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href_vector_->push_back(schemadata->get_schemaurl());
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}
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// TODO: HTML links in description and BalloonStyle/text
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break;
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}
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return true;
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}
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private:
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href_vector_t* href_vector_;
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};
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// This function saves to the vector all href's found in the given KML.
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// This returns false if the vector is NULL or on any parse error. This does
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// not search the balloon text for links.
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bool GetLinks(const string& kml, href_vector_t* href_vector);
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// As GetLinks, but considers only those href's that are relative (local) to
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// the given KML. This does not search the balloon text for links.
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bool GetRelativeLinks(const string& kml, href_vector_t* href_vector);
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} // end namespace kmlengine
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#endif // KML_ENGINE_GET_LINKS_H__
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