Add host placeholder to window and tab title formats

README.asciidoc

@@ -229,6 +229,7 @@ Contributors, sorted by the number of commits in descending order:
 * HalosGhost
 * Gregor Pohl
 * Eivind Uggedal
+* Daryl Finlay
 * Daniel Lu
 * Arseniy Seroka
 * Andy Balaam

doc/help/settings.asciidoc

@@ -637,6 +637,7 @@ The format to use for the window title. The following placeholders are defined:
 * `{title_sep}`: The string ` - ` if a title is set, empty otherwise.
 * `{id}`: The internal window ID of this window.
 * `{scroll_pos}`: The page scroll position.
+* `{host}`: The host of the current web page.
 
 Default: +pass:[{perc}{title}{title_sep}qutebrowser]+
 
@@ -1153,6 +1154,7 @@ The format to use for the tab title. The following placeholders are defined:
 * `{index}`: The index of this tab.
 * `{id}`: The internal tab ID of this tab.
 * `{scroll_pos}`: The page scroll position.
+* `{host}`: The host of the current web page.
 
 Default: +pass:[{index}: {title}]+
 

qutebrowser/config/configdata.py

@@ -330,7 +330,7 @@ def data(readonly=False):
             ('window-title-format',
              SettingValue(typ.FormatString(fields=['perc', 'perc_raw', 'title',
                                                    'title_sep', 'id',
-                                                   'scroll_pos']),
+                                                   'scroll_pos', 'host']),
                           '{perc}{title}{title_sep}qutebrowser'),
              "The format to use for the window title. The following "
              "placeholders are defined:\n\n"
@@ -340,7 +340,8 @@ def data(readonly=False):
              "* `{title_sep}`: The string ` - ` if a title is set, empty "
              "otherwise.\n"
              "* `{id}`: The internal window ID of this window.\n"
-             "* `{scroll_pos}`: The page scroll position."),
+             "* `{scroll_pos}`: The page scroll position.\n"
+             "* `{host}`: The host of the current web page."),
 
             ('hide-mouse-cursor',
              SettingValue(typ.Bool(), 'false'),
@@ -627,7 +628,7 @@ def data(readonly=False):
             ('title-format',
              SettingValue(typ.FormatString(
                  fields=['perc', 'perc_raw', 'title', 'title_sep', 'index',
-                         'id', 'scroll_pos']), '{index}: {title}'),
+                         'id', 'scroll_pos', 'host']), '{index}: {title}'),
              "The format to use for the tab title. The following placeholders "
              "are defined:\n\n"
              "* `{perc}`: The percentage as a string like `[10%]`.\n"
@@ -637,7 +638,8 @@ def data(readonly=False):
              "otherwise.\n"
              "* `{index}`: The index of this tab.\n"
              "* `{id}`: The internal tab ID of this tab.\n"
-             "* `{scroll_pos}`: The page scroll position."),
+             "* `{scroll_pos}`: The page scroll position.\n"
+             "* `{host}`: The host of the current web page."),
 
             ('title-alignment',
              SettingValue(typ.TextAlignment(), 'left'),

qutebrowser/mainwindow/tabbedbrowser.py

@@ -182,6 +182,11 @@ class TabbedBrowser(tabwidget.TabWidget):
             scroll_pos = '{:2}%'.format(y)
 
         fields['scroll_pos'] = scroll_pos
+        try:
+            fields['host'] = self.current_url().host()
+        except qtutils.QtValueError:
+            fields['host'] = ''
+
         fmt = config.get('ui', 'window-title-format')
         self.window().setWindowTitle(fmt.format(**fields))
 
@@ -231,14 +236,8 @@ class TabbedBrowser(tabwidget.TabWidget):
         Return:
             The current URL as QUrl.
         """
-        widget = self.currentWidget()
-        if widget is None:
-            url = QUrl()
-        else:
-            url = widget.cur_url
-        # It's possible for url to be invalid, but the caller will handle that.
-        qtutils.ensure_valid(url)
-        return url
+        idx = self.currentIndex()
+        return super().tab_url(idx)
 
     def shutdown(self):
         """Try to shut down all tabs cleanly."""

qutebrowser/mainwindow/tabwidget.py

@@ -22,7 +22,7 @@
 import collections
 import functools
 
-from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QSize, QRect, QTimer
+from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QSize, QRect, QTimer, QUrl
 from PyQt5.QtWidgets import (QTabWidget, QTabBar, QSizePolicy, QCommonStyle,
                              QStyle, QStylePainter, QStyleOptionTab)
 from PyQt5.QtGui import QIcon, QPalette, QColor
@@ -121,6 +121,10 @@ class TabWidget(QTabWidget):
             scroll_pos = '{:2}%'.format(y)
 
         fields['scroll_pos'] = scroll_pos
+        try:
+            fields['host'] = self.tab_url(idx).host()
+        except qtutils.QtValueError:
+            fields['host'] = ''
 
         fmt = config.get('tabs', 'title-format')
         self.tabBar().setTabText(idx, fmt.format(**fields))
@@ -205,6 +209,21 @@ class TabWidget(QTabWidget):
         self.tabBar().on_change()
         self.tab_index_changed.emit(index, self.count())
 
+    def tab_url(self, idx):
+        """Get the URL of the tab at the given index.
+
+        Return:
+            The tab URL as QUrl.
+        """
+        widget = self.widget(idx)
+        if widget is None:
+            url = QUrl()
+        else:
+            url = widget.cur_url
+        # It's possible for url to be invalid, but the caller will handle that.
+        qtutils.ensure_valid(url)
+        return url
+
 
 class TabBar(QTabBar):
 

tests/helpers/stubs.py

@@ -134,10 +134,12 @@ class FakeQApplication:
 
 class FakeUrl:
 
-    """QUrl stub which provides .path()."""
+    """QUrl stub which provides .path(), isValid() and host()."""
 
-    def __init__(self, path=None):
+    def __init__(self, path=None, valid=True, host=None):
         self.path = mock.Mock(return_value=path)
+        self.isValid = mock.Mock(returl_value=valid)
+        self.host = mock.Mock(returl_value=host)
 
 
 class FakeNetworkReply:
@@ -222,6 +224,7 @@ class FakeWebView(QWidget):
         self.scroll_pos = (-1, -1)
         self.load_status = webview.LoadStatus.none
         self.tab_id = 0
+        self.cur_url = FakeUrl()
 
 
 class FakeSignal: