Add $QUTE_HTML and $QUTE_TEXT for userscripts.

doc/userscripts.asciidoc

@@ -24,6 +24,8 @@ The following environment variables will be set when an userscript is launched:
   command or key binding).
 - `QUTE_USER_AGENT`: The currently set user agent.
 - `QUTE_FIFO`: The FIFO or file to write commands to.
+- `QUTE_HTML`: The HTML source of the current page.
+- `QUTE_TEXT`: The plaintext of the current page.
 
 In `command` mode:
 

qutebrowser/browser/commands.py

@@ -876,9 +876,14 @@ class CommandDispatcher:
             env['QUTE_TITLE'] = tabbed_browser.page_title(idx)
 
         webview = tabbed_browser.currentWidget()
-        if webview is not None and webview.hasSelection():
-            env['QUTE_SELECTED_TEXT'] = webview.selectedText()
-            env['QUTE_SELECTED_HTML'] = webview.selectedHtml()
+        if webview is not None:
+            if webview.hasSelection():
+                env['QUTE_SELECTED_TEXT'] = webview.selectedText()
+                env['QUTE_SELECTED_HTML'] = webview.selectedHtml()
+            mainframe = webview.page().mainFrame()
+            if mainframe is not None:
+                env['QUTE_HTML'] = mainframe.toHtml()
+                env['QUTE_TEXT'] = mainframe.toPlainText()
 
         try:
             url = tabbed_browser.current_url()

qutebrowser/browser/hints.py

@@ -518,10 +518,13 @@ class HintManager(QObject):
         """
         cmd = context.args[0]
         args = context.args[1:]
+        frame = context.mainframe
         env = {
             'QUTE_MODE': 'hints',
             'QUTE_SELECTED_TEXT': str(elem),
             'QUTE_SELECTED_HTML': elem.toOuterXml(),
+            'QUTE_HTML': mainframe.toHtml(),
+            'QUTE_TEXT': mainframe.toPlainText(),
         }
         url = self._resolve_url(elem, context.baseurl)
         if url is not None: