Thomas, Below I've pasted a leo subtree containing a demo @button which will display html hyperlinks to nodes inside a QTextBrowser.
To use it copy the xml and in a leo outline, "paste as node". Create a script button from it and after clicking the button, a new pane should appear containing hyperlinks to the selected node and each of its subtree nodes. Clicking on those hyperlinks will move the selection to the node corresponding to the clicked link. QT dock-based display only. I thought I'd share in case it helps you along with what you are doing. The code is a little rough around the edges, but since it is a complete working example, it might be useful to you. <?xml version="1.0" encoding="utf-8"?> <!-- Created by Leo: http://leoeditor.com/leo_toc.html --> <leo_file xmlns:leo="http://leoeditor.com/namespaces/leo-python-editor/1.1"; > <leo_header file_format="2"/> <vnodes> <v t="btheado.20200226212619.1"><vh>@button node linked html</vh> <v t="btheado.20200226212619.10"><vh>display_widget_in_leo_pane()</vh></v> <v t="btheado.20200226212619.11"><vh>display_html</vh></v> <v t="btheado.20200226214559.1"><vh>node_link</vh></v> <v t="btheado.20200226212619.12"><vh>display_node_linked_html</vh></v> </v> </vnodes> <tnodes> <t tx="btheado.20200226212619.1">@language python from PyQt5 import QtCore, QtWidgets @others # Just some sample node links, one on each line html = "\n".join([ node_link(p) + "<br/>" for p in p.self_and_subtree() ]) # Display the html in a docked widget display_node_linked_html(c, html) </t> <t tx="btheado.20200226212619.10">def display_widget_in_leo_pane(g, c, w, name): """ w is the widget to display name is the name the widget should appear in pane menu """ dw = c.frame.top c.user_dict.setdefault('btheado_docks', {}) dock_dict = c.user_dict['btheado_docks'] dock = dock_dict.get(name) if not dock: dock = g.app.gui.create_dock_widget( closeable=True, moveable=True, height=50, name=name) dock_dict[name] = dock dw.addDockWidget(QtCore.Qt.RightDockWidgetArea, dock) dock.setWidget(w) dock.show() #g.es(dock.widget()) </t> <t tx="btheado.20200226212619.11">def display_html(html, name = 'test html'): w = QtWidgets.QTextBrowser() w.setHtml(html) display_widget_in_leo_pane(g, c, w, name) return w</t> <t tx="btheado.20200226212619.12">def display_node_linked_html(c, html): def link_clicked(url): if url.isRelative(): if url.path().startswith('node/'): gnx = url.path().split("/")[-1] target = next(( p for p in c.all_unique_positions() if p.v.gnx == gnx ), None) if target: w.setSource(QtCore.QUrl()) c.selectPosition(target) # Without this, there is possibility of the # position not being displayed and subsequent # expand of the node not showing all descendants c.redraw() else: g.es(f"Could not find node with gnx: {gnx}") else: g.es(f"Don't know how to handle url: {url.toString()}") else: g.es(f"Don't know how to handle url: {url.toString()}") w = display_html(html) w.anchorClicked.connect(link_clicked)</t> <t tx="btheado.20200226214559.1">def node_link(p): return f""" <a style="color: violet; text-decoration: none;" href="node/{p.v.gnx}">{p.h}</a> """</t> </tnodes> </leo_file> On Wed, Feb 26, 2020 at 12:45 PM Thomas Passin <tbp100...@gmail.com> wrote: > If I create a QT5 browser widget, and (within Leo) want to intercept and > act on clicks on hyperlinks, is that feasible? Would I just look up the > event for a hyperlink click and connect it to my own handler? > > What I'm interested in specifically is the case where I have a mind map in > the browser, and I want the links to go to corresponding nodes in a Leo > outline. It would seem that handling the click would be easier than trying > to use the Leo Bridge (which I'm totally ignorant of). > > -- > You received this message because you are subscribed to the Google Groups > "leo-editor" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to leo-editor+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/leo-editor/500414ec-9e4b-4bfa-bb62-f763de2be5d6%40googlegroups.com > <https://groups.google.com/d/msgid/leo-editor/500414ec-9e4b-4bfa-bb62-f763de2be5d6%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/CAO5X8Cx35cRLoF%2BW_b_kZurxY7nPGbwVkZY%2BZPc95XQv0yqHCg%40mail.gmail.com.
