eric7/HelpViewer/HelpViewerWidget.py

branch
eric7
changeset 8683
e8a907801549
parent 8681
6285e8374d99
child 8685
b0669ce1066d
--- a/eric7/HelpViewer/HelpViewerWidget.py	Tue Oct 12 21:55:56 2021 +0200
+++ b/eric7/HelpViewer/HelpViewerWidget.py	Wed Oct 13 18:15:30 2021 +0200
@@ -9,7 +9,7 @@
 
 import os
 
-from PyQt6.QtCore import pyqtSlot, QUrl
+from PyQt6.QtCore import pyqtSlot, Qt, QUrl
 from PyQt6.QtGui import QAction
 from PyQt6.QtHelp import QHelpEngine
 from PyQt6.QtWidgets import (
@@ -25,6 +25,8 @@
 
 from .OpenPagesWidget import OpenPagesWidget
 
+from WebBrowser.QtHelp.HelpTocWidget import HelpTocWidget
+
 
 class HelpViewerWidget(QWidget):
     """
@@ -42,6 +44,8 @@
         
         self.__ui = parent
         
+        self.__initHelpEngine()
+        
         self.__layout = QVBoxLayout()
         self.__layout.setObjectName("MainLayout")
         self.__layout.setContentsMargins(0, 3, 0, 0)
@@ -109,7 +113,6 @@
         self.__buttonLine1.setFrameShadow(QFrame.Shadow.Sunken)
         self.__navButtonsLayout.addWidget(self.__buttonLine1)
         
-        # TODO: add zoom in button
         self.__zoomInButton = QToolButton(self)
         self.__zoomInButton.setIcon(UI.PixmapCache.getIcon("zoomIn"))
         self.__zoomInButton.setToolTip(
@@ -117,7 +120,6 @@
         self.__zoomInButton.clicked.connect(self.__zoomIn)
         self.__navButtonsLayout.addWidget(self.__zoomInButton)
         
-        # TODO: add zoom out button
         self.__zoomOutButton = QToolButton(self)
         self.__zoomOutButton.setIcon(UI.PixmapCache.getIcon("zoomOut"))
         self.__zoomOutButton.setToolTip(
@@ -125,7 +127,6 @@
         self.__zoomOutButton.clicked.connect(self.__zoomOut)
         self.__navButtonsLayout.addWidget(self.__zoomOutButton)
         
-        # TODO: add zoom reset button
         self.__zoomResetButton = QToolButton(self)
         self.__zoomResetButton.setIcon(UI.PixmapCache.getIcon("zoomReset"))
         self.__zoomResetButton.setToolTip(
@@ -177,6 +178,9 @@
         
         self.__openPagesButton = self.__addNavigationButton(
             "fileMisc", self.tr("Show list of open pages"))
+        self.__helpTocButton = self.__addNavigationButton(
+            "tableOfContents", self.tr("Show table of contents"))
+        self.__openPagesButton.setChecked(True)
         
         # TODO: add buttons for the QHelp related widgets
         
@@ -223,10 +227,20 @@
         """
         Private method to populate the stack of navigation widgets.
         """
+        # Open Pages
         self.__openPagesList = OpenPagesWidget(self.__helpStack, self)
         self.__openPagesList.currentChanged.connect(self.__checkActionButtons)
         self.__helpNavigationStack.addWidget(self.__openPagesList)
         
+        # QtHelp TOC
+        self.__tocWidget = HelpTocWidget(self.__helpEngine, internal=True)
+        self.__tocWidget.escapePressed.connect(self.__activateCurrentPage)
+        self.__tocWidget.openUrl.connect(self.openUrl)
+        self.__tocWidget.newTab.connect(self.openUrlNewPage)
+        self.__tocWidget.newBackgroundTab.connect(
+            self.openUrlNewBackgroundPage)
+        self.__helpNavigationStack.addWidget(self.__tocWidget)
+        
         # TODO: not yet implemented
     
     @pyqtSlot(QAbstractButton)
@@ -239,6 +253,8 @@
         """
         if button == self.__openPagesButton:
             self.__helpNavigationStack.setCurrentWidget(self.__openPagesList)
+        elif button == self.__helpTocButton:
+            self.__helpNavigationStack.setCurrentWidget(self.__tocWidget)
         
         # TODO: not yet implemented
     
@@ -290,7 +306,9 @@
         @param searchWord word to search for (defaults to None)
         @type str (optional)
         """
-        # TODO: not yet implemented
+        cv = self.currentViewer()
+        if cv:
+            cv.setFocus(Qt.FocusReason.OtherFocusReason)
         
         if searchWord:
             self.searchQtHelp(searchWord)
@@ -309,18 +327,71 @@
         if htmlFile:
             self.currentViewer().setUrl(QUrl.fromLocalFile(htmlFile))
     
-    def addPage(self, url=QUrl("about:blank")):
+    def addPage(self, url=QUrl("about:blank"), background=False):
         """
         Public method to add a new help page with the given URL.
         
         @param url requested URL (defaults to QUrl("about:blank"))
         @type QUrl (optional)
+        @param background flag indicating to open the page in the background
+            (defaults to False)
+        @type bool (optional)
         """
         viewer = self.__newViewer()
         viewer.setUrl(url)
         
+        if background:
+            cv = self.currentViewer()
+            if cv:
+                index = self.__helpStack.indexOf(cv) + 1
+                self.__helpStack.insertWidget(index, viewer)
+                self.__openPagesList.insertPage(
+                    index, viewer, background=background)
+                return
+        
         self.__helpStack.addWidget(viewer)
-        self.__openPagesList.addPage(viewer)
+        self.__openPagesList.addPage(viewer, background=background)
+
+    @pyqtSlot(QUrl)
+    def openUrl(self, url):
+        """
+        Public slot to load a URL in the current page.
+        
+        @param url URL to be opened
+        @type QUrl
+        """
+        cv = self.currentViewer()
+        if cv:
+            cv.setUrl(url)
+    
+    @pyqtSlot(QUrl)
+    def openUrlNewPage(self, url):
+        """
+        Public slot to load a URL in a new page.
+        
+        @param url URL to be opened
+        @type QUrl
+        """
+        self.addPage(url=url)
+    
+    @pyqtSlot(QUrl)
+    def openUrlNewBackgroundPage(self, url):
+        """
+        Public slot to load a URL in a new background page.
+        
+        @param url URL to be opened
+        @type QUrl
+        """
+        self.addPage(url=url, background=True)
+    
+    @pyqtSlot()
+    def __activateCurrentPage(self):
+        """
+        Private slot to activate the current page.
+        """
+        cv = self.currentViewer()
+        if cv:
+            cv.setFocus()
     
     def __newViewer(self):
         """
@@ -474,10 +545,16 @@
         Private slot to set the enabled state of the action buttons.
         """
         cv = self.currentViewer()
-        self.__backwardButton.setEnabled(cv and cv.isBackwardAvailable())
-        self.__forwardButton.setEnabled(cv and cv.isForwardAvailable())
-        self.__zoomInButton.setEnabled(cv and cv.isScaleUpAvailable())
-        self.__zoomOutButton.setEnabled(cv and cv.isScaleDownAvailable())
+        if cv:
+            self.__backwardButton.setEnabled(cv.isBackwardAvailable())
+            self.__forwardButton.setEnabled(cv.isForwardAvailable())
+            self.__zoomInButton.setEnabled(cv.isScaleUpAvailable())
+            self.__zoomOutButton.setEnabled(cv.isScaleDownAvailable())
+        else:
+            self.__backwardButton.setEnabled(False)
+            self.__forwardButton.setEnabled(False)
+            self.__zoomInButton.setEnabled(False)
+            self.__zoomOutButton.setEnabled(False)
     
     def __showBackMenu(self):
         """
@@ -529,7 +606,8 @@
         cv = self.currentViewer()
         if cv:
             index = act.data()
-            cv.gotoHistory(index)
+            if index is not None:
+                cv.gotoHistory(index)
     
     def __clearHistory(self):
         """

eric ide

mercurial