fb2view.cpp 5.7 KB

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  1. #include "fb2view.hpp"
  2. #include "fb2read.hpp"
  3. #include "fb2save.h"
  4. #include "fb2xml2.h"
  5. #include <QAction>
  6. #include <QtDebug>
  7. #include <QFileDialog>
  8. #include <QNetworkRequest>
  9. #include <QToolTip>
  10. #include <QWebElement>
  11. #include <QWebFrame>
  12. #include <QWebPage>
  13. //---------------------------------------------------------------------------
  14. // Fb2WebPage
  15. //---------------------------------------------------------------------------
  16. Fb2WebPage::Fb2WebPage(QObject *parent)
  17. : QWebPage(parent)
  18. {
  19. setContentEditable(true);
  20. QWebSettings *s = settings();
  21. s->setAttribute(QWebSettings::AutoLoadImages, true);
  22. s->setAttribute(QWebSettings::DeveloperExtrasEnabled, true);
  23. s->setAttribute(QWebSettings::JavaEnabled, false);
  24. s->setAttribute(QWebSettings::JavascriptEnabled, true);
  25. s->setAttribute(QWebSettings::PrivateBrowsingEnabled, true);
  26. s->setAttribute(QWebSettings::PluginsEnabled, false);
  27. s->setAttribute(QWebSettings::ZoomTextOnly, true);
  28. s->setUserStyleSheetUrl(QUrl::fromLocalFile(":style.css"));
  29. }
  30. bool Fb2WebPage::acceptNavigationRequest(QWebFrame *frame, const QNetworkRequest &request, NavigationType type)
  31. {
  32. Q_UNUSED(frame);
  33. if (type == NavigationTypeLinkClicked) {
  34. qCritical() << request.url().fragment();
  35. return false;
  36. // QToolTip::showText(request.url().fragment());
  37. }
  38. return QWebPage::acceptNavigationRequest(frame, request, type);
  39. }
  40. //---------------------------------------------------------------------------
  41. // Fb2WebView
  42. //---------------------------------------------------------------------------
  43. Fb2WebView::Fb2WebView(QWidget *parent)
  44. : Fb2BaseWebView(parent)
  45. , m_thread(0)
  46. {
  47. setPage(new Fb2WebPage(this));
  48. connect(page(), SIGNAL(contentsChanged()), this, SLOT(fixContents()));
  49. connect(page(), SIGNAL(linkHovered(QString,QString,QString)), this, SLOT(linkHovered(QString,QString,QString)));
  50. }
  51. Fb2WebView::~Fb2WebView()
  52. {
  53. }
  54. QWebElement Fb2WebView::doc()
  55. {
  56. return page()->mainFrame()->documentElement();
  57. }
  58. QString Fb2WebView::toBodyXml()
  59. {
  60. QWebElement body = doc().findFirst("body");
  61. if (body.isNull()) return QString();
  62. return body.toOuterXml();
  63. }
  64. void Fb2WebView::fixContents()
  65. {
  66. foreach (QWebElement span, doc().findAll("span.apple-style-span[style]")) {
  67. span.removeAttribute("style");
  68. }
  69. }
  70. void Fb2WebView::linkHovered(const QString &link, const QString &title, const QString &textContent)
  71. {
  72. Q_UNUSED(title);
  73. Q_UNUSED(textContent);
  74. QToolTip::showText(QPoint(100, 100), link);
  75. }
  76. void Fb2WebView::load(const QString &filename, const QString &xml)
  77. {
  78. if (m_thread) return;
  79. m_thread = new Fb2ReadThread(this, filename, xml);
  80. m_thread->start();
  81. }
  82. bool Fb2WebView::save(QIODevice *device)
  83. {
  84. Fb2SaveHandler handler(*this, device);
  85. QXmlInputSource source;
  86. source.setData(toBodyXml());
  87. XML2::HtmlReader reader;
  88. reader.setContentHandler(&handler);
  89. reader.setErrorHandler(&handler);
  90. return reader.parse(source);
  91. }
  92. bool Fb2WebView::save(QByteArray *array, QList<int> *folds)
  93. {
  94. Fb2SaveHandler handler(*this, array, folds);
  95. QXmlInputSource source;
  96. source.setData(toBodyXml());
  97. XML2::HtmlReader reader;
  98. reader.setContentHandler(&handler);
  99. reader.setErrorHandler(&handler);
  100. return reader.parse(source);
  101. }
  102. bool Fb2WebView::save(QString *string)
  103. {
  104. // Use class QByteArray instead QString
  105. // to store information about encoding.
  106. QByteArray data;
  107. bool ok = save(&data);
  108. if (ok) *string = QString::fromUtf8(data.data());
  109. return ok;
  110. }
  111. QString Fb2WebView::temp(QString name)
  112. {
  113. return m_files.get(name).fileName();
  114. }
  115. void Fb2WebView::data(QString name, QByteArray data)
  116. {
  117. m_files.set(name, data);
  118. }
  119. void Fb2WebView::html(QString name, QString html)
  120. {
  121. setHtml(html, QUrl::fromLocalFile(name));
  122. if (m_thread) m_thread->deleteLater();
  123. m_thread = 0;
  124. }
  125. void Fb2WebView::zoomIn()
  126. {
  127. qreal zoom = zoomFactor();
  128. setZoomFactor(zoom * 1.1);
  129. }
  130. void Fb2WebView::zoomOut()
  131. {
  132. qreal zoom = zoomFactor();
  133. setZoomFactor(zoom * 0.9);
  134. }
  135. void Fb2WebView::zoomOrig()
  136. {
  137. setZoomFactor(1);
  138. }
  139. bool Fb2WebView::UndoEnabled()
  140. {
  141. return pageAction(QWebPage::Undo)->isEnabled();
  142. }
  143. bool Fb2WebView::RedoEnabled()
  144. {
  145. return pageAction(QWebPage::Redo)->isEnabled();
  146. }
  147. bool Fb2WebView::CutEnabled()
  148. {
  149. return pageAction(QWebPage::Cut)->isEnabled();
  150. }
  151. bool Fb2WebView::CopyEnabled()
  152. {
  153. return pageAction(QWebPage::Copy)->isEnabled();
  154. }
  155. bool Fb2WebView::BoldChecked()
  156. {
  157. return pageAction(QWebPage::ToggleBold)->isChecked();
  158. }
  159. bool Fb2WebView::ItalicChecked()
  160. {
  161. return pageAction(QWebPage::ToggleItalic)->isChecked();
  162. }
  163. bool Fb2WebView::StrikeChecked()
  164. {
  165. return pageAction(QWebPage::ToggleStrikethrough)->isChecked();
  166. }
  167. bool Fb2WebView::SubChecked()
  168. {
  169. return pageAction(QWebPage::ToggleSubscript)->isChecked();
  170. }
  171. bool Fb2WebView::SupChecked()
  172. {
  173. return pageAction(QWebPage::ToggleSuperscript)->isChecked();
  174. }
  175. void Fb2WebView::insertImage()
  176. {
  177. QString filters;
  178. filters += tr("Common Graphics (*.png *.jpg *.jpeg *.gif);;");
  179. filters += tr("Portable Network Graphics (PNG) (*.png);;");
  180. filters += tr("JPEG (*.jpg *.jpeg);;");
  181. filters += tr("Graphics Interchange Format (*.gif);;");
  182. filters += tr("All Files (*)");
  183. QString fn = QFileDialog::getOpenFileName(this, tr("Open image..."), QString(), filters);
  184. if (fn.isEmpty()) return;
  185. if (!QFile::exists(fn)) return;
  186. QUrl url = QUrl::fromLocalFile(fn);
  187. execCommand("insertImage", url.toString());
  188. }
  189. void Fb2WebView::execCommand(const QString &cmd, const QString &arg)
  190. {
  191. QWebFrame *frame = page()->mainFrame();
  192. QString js = QString("document.execCommand(\"%1\", false, \"%2\")").arg(cmd).arg(arg);
  193. frame->evaluateJavaScript(js);
  194. }