CODEWITHSUNDEEP
pythonhyperlinkpyqtqlabelqtextbrowser
Ejaz
Ejaz

Reputation: 1632

How to give a method name to href?

I have a QTextBrowser() object:

self.PAddressLink = QTextBrowser()

I need to click on a link placed on this QTextBrowser, and it should open a new dialog box.

self.PAddressLink.setHtml("<html><body><a href=#>+Add Permanent Address</a></body></html>")

I can open the new window with the below code anyhow:

self.PAddressLink.anchorClicked.connect(self.AddPAddress) #self.AddPAddress is the method of displaying a dialog box.

But I need to know if I can place the self.AddPAddress in the href and avoid using the below extra statement:

self.PAddressLink.anchorClicked.connect(self.AddPAddress) #self.AddPAddress

Upvotes: 1

Views: 248

Answers (2)

ekhumoro
ekhumoro

Reputation: 120578

Assuming all the methods are defined on the same object (e.g. self), you could set the method names in the href attribute:

self.PAddressLink.setHtml('<a href="AddPAddress">...</a>')
self.PAddressLink.anchorClicked.connect(self.handleLink)

and then use getattr to call the method:

def handleLink(self, url):
    if url.scheme():
        # handle normal urls here if necessary...
    else:
        getattr(self, url.toString())()

Here's a complete demo using both QLabel and QTextBrowser:

screenshot

from PyQt5 import QtCore, QtGui, QtWidgets

html = """
<p><a href="https://www.google.com">Url Link</a></p>
<p><a href="myMethod">Method Link</a></p>
"""

class Window(QtWidgets.QWidget):
    def __init__(self):
        super().__init__()
        self.label = QtWidgets.QLabel(html)
        self.browser = QtWidgets.QTextBrowser()
        self.browser.setOpenLinks(False)
        self.browser.setHtml(html)
        layout = QtWidgets.QVBoxLayout(self)
        layout.addWidget(self.browser)
        layout.addWidget(self.label)
        self.label.linkActivated.connect(self.handleLink)
        self.browser.anchorClicked.connect(self.handleLink)

    def handleLink(self, url):
        url = QtCore.QUrl(url)
        if url.scheme():
            # handle real urls
            QtGui.QDesktopServices.openUrl(url)
        else:
            # handle methods
            getattr(self, url.toString())()

    def myMethod(self):
        QtWidgets.QMessageBox.information(self, 'Test', 'Hello World!')

if __name__ == '__main__':

    app = QtWidgets.QApplication(['Test'])
    window = Window()
    window.setGeometry(600, 100, 300, 200)
    window.show()
    app.exec()

Upvotes: 3

Sevanteri
Sevanteri

Reputation: 4038

Most likely not. Atleast not any easy way. You'd be just reimplementing the signals and slots system most likely.

Just as with buttons, you have to connect the click signal to a slot. That's how it is designed to work.

Upvotes: 1

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