Mercurial Repositories > eric / file comparison
comparison: UI/Previewers/PreviewerHTML.py
UI/Previewers/PreviewerHTML.py
- changeset 4625
- ac72a3d8f89e
- parent 4615
- 7c090c9d389d
- child 4631
- 5c1a96925da4
equal
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replaced
| 4624:aebdbffe02b6 | 4625:ac72a3d8f89e |
|---|---|
| 49 self.titleLabel.setWordWrap(True) | 49 self.titleLabel.setWordWrap(True) |
| 50 self.titleLabel.setTextInteractionFlags(Qt.NoTextInteraction) | 50 self.titleLabel.setTextInteractionFlags(Qt.NoTextInteraction) |
| 51 self.__layout.addWidget(self.titleLabel) | 51 self.__layout.addWidget(self.titleLabel) |
| 52 | 52 |
| 53 try: | 53 try: |
| 54 from PyQt5.QtWebEngineWidgets import QWebEngineView | |
| 55 self.previewView = QWebEngineView(self) | |
| 56 self.__usesWebKit = False | |
| 57 except ImportError: | |
| 54 from PyQt5.QtWebKitWidgets import QWebPage, QWebView | 58 from PyQt5.QtWebKitWidgets import QWebPage, QWebView |
| 55 self.previewView = QWebView(self) | 59 self.previewView = QWebView(self) |
| 56 self.previewView.page().setLinkDelegationPolicy( | 60 self.previewView.page().setLinkDelegationPolicy( |
| 57 QWebPage.DelegateAllLinks) | 61 QWebPage.DelegateAllLinks) |
| 58 self.__usesWebKit = True | 62 self.__usesWebKit = True |
| 59 except ImportError: | |
| 60 from PyQt5.QtWebEngineWidgets import QWebEngineView | |
| 61 self.previewView = QWebEngineView(self) | |
| 62 self.__usesWebKit = False | |
| 63 | 63 |
| 64 sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding) | 64 sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding) |
| 65 sizePolicy.setHorizontalStretch(0) | 65 sizePolicy.setHorizontalStretch(0) |
| 66 sizePolicy.setVerticalStretch(0) | 66 sizePolicy.setVerticalStretch(0) |
| 67 sizePolicy.setHeightForWidth( | 67 sizePolicy.setHeightForWidth( |
| 198 @param filePath file path of the previewed editor (string) | 198 @param filePath file path of the previewed editor (string) |
| 199 @param html processed HTML text ready to be shown (string) | 199 @param html processed HTML text ready to be shown (string) |
| 200 """ | 200 """ |
| 201 self.__previewedPath = Utilities.normcasepath( | 201 self.__previewedPath = Utilities.normcasepath( |
| 202 Utilities.fromNativeSeparators(filePath)) | 202 Utilities.fromNativeSeparators(filePath)) |
| 203 self.__saveScrollBarPositions() | |
| 203 if self.__usesWebKit: | 204 if self.__usesWebKit: |
| 204 self.__saveScrollBarPositions() | |
| 205 self.previewView.page().mainFrame().contentsSizeChanged.connect( | 205 self.previewView.page().mainFrame().contentsSizeChanged.connect( |
| 206 self.__restoreScrollBarPositions) | |
| 207 else: | |
| 208 self.previewView.page().loadFinished.connect( | |
| 206 self.__restoreScrollBarPositions) | 209 self.__restoreScrollBarPositions) |
| 207 self.previewView.setHtml(html, baseUrl=QUrl.fromLocalFile(filePath)) | 210 self.previewView.setHtml(html, baseUrl=QUrl.fromLocalFile(filePath)) |
| 208 | 211 |
| 209 @pyqtSlot(str) | 212 @pyqtSlot(str) |
| 210 def on_previewView_titleChanged(self, title): | 213 def on_previewView_titleChanged(self, title): |
| 231 self.__scrollBarPositions[self.__previewedPath] = pos | 234 self.__scrollBarPositions[self.__previewedPath] = pos |
| 232 self.__hScrollBarAtEnd[self.__previewedPath] = \ | 235 self.__hScrollBarAtEnd[self.__previewedPath] = \ |
| 233 frame.scrollBarMaximum(Qt.Horizontal) == pos.x() | 236 frame.scrollBarMaximum(Qt.Horizontal) == pos.x() |
| 234 self.__vScrollBarAtEnd[self.__previewedPath] = \ | 237 self.__vScrollBarAtEnd[self.__previewedPath] = \ |
| 235 frame.scrollBarMaximum(Qt.Vertical) == pos.y() | 238 frame.scrollBarMaximum(Qt.Vertical) == pos.y() |
| 239 else: | |
| 240 from PyQt5.QtCore import QPoint | |
| 241 pos = self.__execJavaScript( | |
| 242 "(function() {" | |
| 243 "var res = {" | |
| 244 " x: 0," | |
| 245 " y: 0," | |
| 246 "};" | |
| 247 "res.x = window.scrollX;" | |
| 248 "res.y = window.scrollY;" | |
| 249 "return res;" | |
| 250 "})()" | |
| 251 ) | |
| 252 pos = QPoint(pos["x"], pos["y"]) | |
| 253 self.__scrollBarPositions[self.__previewedPath] = pos | |
| 254 self.__hScrollBarAtEnd[self.__previewedPath] = False | |
| 255 self.__vScrollBarAtEnd[self.__previewedPath] = False | |
| 236 | 256 |
| 237 def __restoreScrollBarPositions(self): | 257 def __restoreScrollBarPositions(self): |
| 238 """ | 258 """ |
| 239 Private method to restore scroll bar positions for a previewed editor. | 259 Private method to restore scroll bar positions for a previewed editor. |
| 240 """ | 260 """ |
| 258 Qt.Horizontal, frame.scrollBarMaximum(Qt.Horizontal)) | 278 Qt.Horizontal, frame.scrollBarMaximum(Qt.Horizontal)) |
| 259 | 279 |
| 260 if self.__vScrollBarAtEnd[self.__previewedPath]: | 280 if self.__vScrollBarAtEnd[self.__previewedPath]: |
| 261 frame.setScrollBarValue( | 281 frame.setScrollBarValue( |
| 262 Qt.Vertical, frame.scrollBarMaximum(Qt.Vertical)) | 282 Qt.Vertical, frame.scrollBarMaximum(Qt.Vertical)) |
| 283 else: | |
| 284 if self.__previewedPath not in self.__scrollBarPositions: | |
| 285 return | |
| 286 | |
| 287 pos = self.__scrollBarPositions[self.__previewedPath] | |
| 288 self.previewView.page().runJavaScript( | |
| 289 "window.scrollTo({0}, {1});".format(pos.x(), pos.y())) | |
| 263 | 290 |
| 264 @pyqtSlot(QUrl) | 291 @pyqtSlot(QUrl) |
| 265 def on_previewView_linkClicked(self, url): | 292 def on_previewView_linkClicked(self, url): |
| 266 """ | 293 """ |
| 267 Private slot handling the clicking of a link. | 294 Private slot handling the clicking of a link. |
| 268 | 295 |
| 269 @param url url of the clicked link (QUrl) | 296 @param url url of the clicked link (QUrl) |
| 270 """ | 297 """ |
| 271 e5App().getObject("UserInterface").launchHelpViewer(url.toString()) | 298 e5App().getObject("UserInterface").launchHelpViewer(url.toString()) |
| 299 | |
| 300 def __execJavaScript(self, script): | |
| 301 """ | |
| 302 Private function to execute a JavaScript function Synchroneously. | |
| 303 | |
| 304 @param script JavaScript script source to be executed | |
| 305 @type str | |
| 306 @return result of the script | |
| 307 @rtype depending upon script result | |
| 308 """ | |
| 309 from PyQt5.QtCore import QEventLoop | |
| 310 loop = QEventLoop() | |
| 311 resultDict = {"res": None} | |
| 312 | |
| 313 def resultCallback(res, resDict=resultDict): | |
| 314 if loop and loop.isRunning(): | |
| 315 resDict["res"] = res | |
| 316 loop.quit() | |
| 317 | |
| 318 self.previewView.page().runJavaScript( | |
| 319 script, resultCallback) | |
| 320 | |
| 321 loop.exec_() | |
| 322 return resultDict["res"] | |
| 272 | 323 |
| 273 | 324 |
| 274 class PreviewProcessingThread(QThread): | 325 class PreviewProcessingThread(QThread): |
| 275 """ | 326 """ |
| 276 Class implementing a thread to process some text into HTML usable by the | 327 Class implementing a thread to process some text into HTML usable by the |
