Mercurial Repositories > eric / file comparison
comparison: eric6/UI/Previewers/PreviewerHTML.py
eric6/UI/Previewers/PreviewerHTML.py
- branch
- without_py2_and_pyqt4
- changeset 7196
- ab0a91b82b37
- parent 7192
- a22eee00b052
- child 7198
- 684261ef2165
equal
deleted
inserted
replaced
| 7192:a22eee00b052 | 7196:ab0a91b82b37 |
|---|---|
| 51 | 51 |
| 52 try: | 52 try: |
| 53 from PyQt5.QtWebEngineWidgets import QWebEngineView | 53 from PyQt5.QtWebEngineWidgets import QWebEngineView |
| 54 self.previewView = QWebEngineView(self) | 54 self.previewView = QWebEngineView(self) |
| 55 self.previewView.page().linkHovered.connect(self.__showLink) | 55 self.previewView.page().linkHovered.connect(self.__showLink) |
| 56 self.__usesWebKit = False | |
| 57 except ImportError: | 56 except ImportError: |
| 58 try: | 57 self.__previewAvailable = False |
| 59 from PyQt5.QtWebKitWidgets import QWebPage, QWebView | 58 self.titleLabel.setText(self.tr( |
| 60 self.previewView = QWebView(self) | 59 "<b>HTML Preview is not available!<br/>" |
| 61 self.previewView.page().setLinkDelegationPolicy( | 60 "Install QtWebEngine.</b>")) |
| 62 QWebPage.DelegateAllLinks) | 61 self.titleLabel.setAlignment(Qt.AlignHCenter) |
| 63 self.__usesWebKit = True | 62 self.__layout.addStretch() |
| 64 except ImportError: | 63 return |
| 65 self.__previewAvailable = False | |
| 66 self.titleLabel.setText(self.tr( | |
| 67 "<b>HTML Preview is not available!<br/>" | |
| 68 "Install QtWebEngine or QtWebKit.</b>")) | |
| 69 self.titleLabel.setAlignment(Qt.AlignHCenter) | |
| 70 self.__layout.addStretch() | |
| 71 return | |
| 72 | 64 |
| 73 sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding) | 65 sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding) |
| 74 sizePolicy.setHorizontalStretch(0) | 66 sizePolicy.setHorizontalStretch(0) |
| 75 sizePolicy.setVerticalStretch(0) | 67 sizePolicy.setVerticalStretch(0) |
| 76 sizePolicy.setHeightForWidth( | 68 sizePolicy.setHeightForWidth( |
| 92 self.__layout.addWidget(self.ssiCheckBox) | 84 self.__layout.addWidget(self.ssiCheckBox) |
| 93 | 85 |
| 94 self.jsCheckBox.clicked[bool].connect(self.on_jsCheckBox_clicked) | 86 self.jsCheckBox.clicked[bool].connect(self.on_jsCheckBox_clicked) |
| 95 self.ssiCheckBox.clicked[bool].connect(self.on_ssiCheckBox_clicked) | 87 self.ssiCheckBox.clicked[bool].connect(self.on_ssiCheckBox_clicked) |
| 96 self.previewView.titleChanged.connect(self.on_previewView_titleChanged) | 88 self.previewView.titleChanged.connect(self.on_previewView_titleChanged) |
| 97 if self.__usesWebKit: | |
| 98 self.previewView.linkClicked.connect( | |
| 99 self.on_previewView_linkClicked) | |
| 100 | 89 |
| 101 self.jsCheckBox.setChecked( | 90 self.jsCheckBox.setChecked( |
| 102 Preferences.getUI("ShowFilePreviewJS")) | 91 Preferences.getUI("ShowFilePreviewJS")) |
| 103 self.ssiCheckBox.setChecked( | 92 self.ssiCheckBox.setChecked( |
| 104 Preferences.getUI("ShowFilePreviewSSI")) | 93 Preferences.getUI("ShowFilePreviewSSI")) |
| 232 @type str | 221 @type str |
| 233 """ | 222 """ |
| 234 self.__previewedPath = Utilities.normcasepath( | 223 self.__previewedPath = Utilities.normcasepath( |
| 235 Utilities.fromNativeSeparators(filePath)) | 224 Utilities.fromNativeSeparators(filePath)) |
| 236 self.__saveScrollBarPositions() | 225 self.__saveScrollBarPositions() |
| 237 if self.__usesWebKit: | 226 self.previewView.page().loadFinished.connect( |
| 238 self.previewView.page().mainFrame().contentsSizeChanged.connect( | 227 self.__restoreScrollBarPositions) |
| 239 self.__restoreScrollBarPositions) | 228 if not filePath: |
| 240 else: | 229 filePath = "/" |
| 241 self.previewView.page().loadFinished.connect( | |
| 242 self.__restoreScrollBarPositions) | |
| 243 if not filePath: | |
| 244 filePath = "/" | |
| 245 if rootPath: | 230 if rootPath: |
| 246 baseUrl = QUrl.fromLocalFile(rootPath + "/index.html") | 231 baseUrl = QUrl.fromLocalFile(rootPath + "/index.html") |
| 247 else: | 232 else: |
| 248 baseUrl = QUrl.fromLocalFile(filePath) | 233 baseUrl = QUrl.fromLocalFile(filePath) |
| 249 self.previewView.setHtml(html, baseUrl=baseUrl) | 234 self.previewView.setHtml(html, baseUrl=baseUrl) |
| 264 | 249 |
| 265 def __saveScrollBarPositions(self): | 250 def __saveScrollBarPositions(self): |
| 266 """ | 251 """ |
| 267 Private method to save scroll bar positions for a previewed editor. | 252 Private method to save scroll bar positions for a previewed editor. |
| 268 """ | 253 """ |
| 269 if self.__usesWebKit: | 254 from PyQt5.QtCore import QPoint |
| 270 frame = self.previewView.page().mainFrame() | 255 try: |
| 271 if frame.contentsSize() == QSize(0, 0): | 256 pos = self.previewView.scrollPosition() |
| 272 return # no valid data, nothing to save | 257 except AttributeError: |
| 273 | 258 pos = self.__execJavaScript( |
| 274 pos = frame.scrollPosition() | 259 "(function() {" |
| 275 self.__scrollBarPositions[self.__previewedPath] = pos | 260 "var res = {" |
| 276 self.__hScrollBarAtEnd[self.__previewedPath] = \ | 261 " x: 0," |
| 277 frame.scrollBarMaximum(Qt.Horizontal) == pos.x() | 262 " y: 0," |
| 278 self.__vScrollBarAtEnd[self.__previewedPath] = \ | 263 "};" |
| 279 frame.scrollBarMaximum(Qt.Vertical) == pos.y() | 264 "res.x = window.scrollX;" |
| 280 else: | 265 "res.y = window.scrollY;" |
| 281 from PyQt5.QtCore import QPoint | 266 "return res;" |
| 282 try: | 267 "})()" |
| 283 pos = self.previewView.scrollPosition() | 268 ) |
| 284 except AttributeError: | 269 if pos is not None: |
| 285 pos = self.__execJavaScript( | 270 pos = QPoint(pos["x"], pos["y"]) |
| 286 "(function() {" | 271 else: |
| 287 "var res = {" | 272 pos = QPoint(0, 0) |
| 288 " x: 0," | 273 self.__scrollBarPositions[self.__previewedPath] = pos |
| 289 " y: 0," | 274 self.__hScrollBarAtEnd[self.__previewedPath] = False |
| 290 "};" | 275 self.__vScrollBarAtEnd[self.__previewedPath] = False |
| 291 "res.x = window.scrollX;" | |
| 292 "res.y = window.scrollY;" | |
| 293 "return res;" | |
| 294 "})()" | |
| 295 ) | |
| 296 if pos is not None: | |
| 297 pos = QPoint(pos["x"], pos["y"]) | |
| 298 else: | |
| 299 pos = QPoint(0, 0) | |
| 300 self.__scrollBarPositions[self.__previewedPath] = pos | |
| 301 self.__hScrollBarAtEnd[self.__previewedPath] = False | |
| 302 self.__vScrollBarAtEnd[self.__previewedPath] = False | |
| 303 | 276 |
| 304 def __restoreScrollBarPositions(self): | 277 def __restoreScrollBarPositions(self): |
| 305 """ | 278 """ |
| 306 Private method to restore scroll bar positions for a previewed editor. | 279 Private method to restore scroll bar positions for a previewed editor. |
| 307 """ | 280 """ |
| 308 if self.__usesWebKit: | 281 if self.__previewedPath not in self.__scrollBarPositions: |
| 309 try: | 282 return |
| 310 self.previewView.page().mainFrame().contentsSizeChanged.\ | 283 |
| 311 disconnect(self.__restoreScrollBarPositions) | 284 pos = self.__scrollBarPositions[self.__previewedPath] |
| 312 except TypeError: | 285 self.previewView.page().runJavaScript( |
| 313 # not connected, simply ignore it | 286 "window.scrollTo({0}, {1});".format(pos.x(), pos.y())) |
| 314 pass | |
| 315 | |
| 316 if self.__previewedPath not in self.__scrollBarPositions: | |
| 317 return | |
| 318 | |
| 319 frame = self.previewView.page().mainFrame() | |
| 320 frame.setScrollPosition( | |
| 321 self.__scrollBarPositions[self.__previewedPath]) | |
| 322 | |
| 323 if self.__hScrollBarAtEnd[self.__previewedPath]: | |
| 324 frame.setScrollBarValue( | |
| 325 Qt.Horizontal, frame.scrollBarMaximum(Qt.Horizontal)) | |
| 326 | |
| 327 if self.__vScrollBarAtEnd[self.__previewedPath]: | |
| 328 frame.setScrollBarValue( | |
| 329 Qt.Vertical, frame.scrollBarMaximum(Qt.Vertical)) | |
| 330 else: | |
| 331 if self.__previewedPath not in self.__scrollBarPositions: | |
| 332 return | |
| 333 | |
| 334 pos = self.__scrollBarPositions[self.__previewedPath] | |
| 335 self.previewView.page().runJavaScript( | |
| 336 "window.scrollTo({0}, {1});".format(pos.x(), pos.y())) | |
| 337 | |
| 338 @pyqtSlot(QUrl) | |
| 339 def on_previewView_linkClicked(self, url): | |
| 340 """ | |
| 341 Private slot handling the clicking of a link. | |
| 342 | |
| 343 @param url URL of the clicked link | |
| 344 @type QUrl | |
| 345 """ | |
| 346 e5App().getObject("UserInterface").launchHelpViewer(url) | |
| 347 | 287 |
| 348 def __execJavaScript(self, script): | 288 def __execJavaScript(self, script): |
| 349 """ | 289 """ |
| 350 Private function to execute a JavaScript function Synchroneously. | 290 Private function to execute a JavaScript function Synchroneously. |
| 351 | 291 |
