Add support to hover mouse over a hint

doc/help/commands.asciidoc

@@ -145,6 +145,7 @@ Start hinting.
  - `tab`: Open the link in a new tab.
  - `tab-bg`: Open the link in a new background tab.
  - `window`: Open the link in a new window.
+ - `hover` : Hover over the link.
  - `yank`: Yank the link to the clipboard.
  - `yank-primary`: Yank the link to the primary selection.
  - `fill`: Fill the commandline with the command given as

qutebrowser/browser/hints.py

@@ -40,7 +40,7 @@ ElemTuple = collections.namedtuple('ElemTuple', ['elem', 'label'])
 
 
 Target = usertypes.enum('Target', ['normal', 'tab', 'tab_bg', 'window', 'yank',
-                                   'yank_primary', 'fill', 'rapid',
+                                   'yank_primary', 'fill', 'hover', 'rapid',
                                    'rapid_win', 'download', 'userscript',
                                    'spawn'])
 
@@ -115,6 +115,7 @@ class HintManager(QObject):
         Target.yank: "Yank hint to clipboard...",
         Target.yank_primary: "Yank hint to primary selection...",
         Target.fill: "Set hint in commandline...",
+        Target.hover: "Hover over a hint",
         Target.rapid: "Follow hint (rapid mode)...",
         Target.rapid_win: "Follow hint in new window (rapid mode)...",
         Target.download: "Download hint...",
@@ -354,6 +355,25 @@ class HintManager(QObject):
         for evt in events:
             self.mouse_event.emit(evt)
 
+    def _hover(self, elem):
+        """Hover over an element.
+
+        Args:
+            elem: The QWebElement to hover.
+        """
+        target = self._context.target
+        self.set_open_target.emit(target.name)
+        # FIXME Instead of clicking the center, we could have nicer heuristics.
+        # e.g. parse (-webkit-)border-radius correctly and click text fields at
+        # the bottom right, and everything else on the top left or so.
+        # https://github.com/The-Compiler/qutebrowser/issues/70
+        pos = elem.rect_on_view().center()
+        log.hints.debug("Hovering on '{}' at {}/{}".format(
+            elem, pos.x(), pos.y()))
+        event = QMouseEvent(
+            QEvent.MouseMove, pos, Qt.NoButton, Qt.NoButton, Qt.NoModifier)
+        self.mouse_event.emit(event)
+
     def _yank(self, url):
         """Yank an element to the clipboard or primary selection.
 
@@ -685,6 +705,7 @@ class HintManager(QObject):
             Target.window: self._click,
             Target.rapid: self._click,
             Target.rapid_win: self._click,
+            Target.hover: self._hover,
             # _download needs a QWebElement to get the frame.
             Target.download: self._download,
         }

qutebrowser/config/configdata.py

@@ -923,6 +923,7 @@ KEY_DATA = collections.OrderedDict([
         ('hint all tab', ['F']),
         ('hint all window', ['wf']),
         ('hint all tab-bg', [';b']),
+        ('hint all hover', ['e']),
         ('hint images', [';i']),
         ('hint images tab', [';I']),
         ('hint images tab-bg', ['.i']),

qutebrowser/utils/usertypes.py

@@ -220,7 +220,8 @@ PromptMode = enum('PromptMode', ['yesno', 'text', 'user_pwd', 'alert'])
 
 
 # Where to open a clicked link.
-ClickTarget = enum('ClickTarget', ['normal', 'tab', 'tab_bg', 'window'])
+ClickTarget = enum('ClickTarget', ['normal', 'tab', 'tab_bg', 'window',
+                                   'hover'])
 
 
 # Key input modes