Implement middle-click to paste selection and also update window title/icon

kitty/main.py

@@ -11,6 +11,7 @@
 from gettext import gettext as _
 
 from PyQt5.QtCore import Qt, QSocketNotifier, pyqtSignal
+from PyQt5.QtGui import QIcon
 from PyQt5.QtWidgets import QApplication, QMainWindow, QMessageBox
 
 from .config import load_config, validate_font
@@ -31,6 +32,8 @@ def __init__(self, opts, dump_commands):
         self.report_error.connect(self.show_error, type=Qt.QueuedConnection)
         self.handle_unix_signals()
         self.boss = Boss(opts, self, dump_commands)
+        self.boss.term.title_changed.connect(self.setWindowTitle)
+        self.boss.term.icon_changed.connect(lambda name: self.setWindowIcon(QIcon.fromTheme(name)))
         self.setCentralWidget(self.boss.term)
 
     def on_unhandled_error(self, etype, value, tb):

kitty/screen.py

@@ -222,6 +222,9 @@ def set_mode(self, *modes, private=False):
             self.cursor.hidden = False
             self.cursor_changed(self.cursor)
 
+    def in_bracketed_paste_mode(self):
+        return mo.BRACKETED_PASTE in self.mode
+
     def reset_mode(self, *modes, private=False):
         """Resets (disables) a given list of modes.
 

kitty/term.py

@@ -8,7 +8,7 @@
 
 from PyQt5.QtCore import pyqtSignal, QTimer, QRect, Qt
 from PyQt5.QtGui import QColor, QPainter, QFont, QFontMetrics, QRegion, QPen, QPixmap
-from PyQt5.QtWidgets import QWidget
+from PyQt5.QtWidgets import QWidget, QApplication
 
 from .config import build_ansi_color_tables, Options, fg_color_table, bg_color_table
 from .data_types import Cursor, HAS_BG_MASK, COL_SHIFT, COL_MASK, as_color
@@ -18,6 +18,7 @@
 from .keys import key_event_to_data
 from .screen import Screen
 from pyte.streams import Stream, DebugStream
+from pyte import modes as mo
 
 
 def ascii_width(fm: QFontMetrics) -> int:
@@ -45,6 +46,8 @@ class TerminalWidget(QWidget):
 
     relayout_lines = pyqtSignal(object, object)
     write_to_child = pyqtSignal(object)
+    title_changed = pyqtSignal(object)
+    icon_changed = pyqtSignal(object)
     send_data_to_child = pyqtSignal(object)
     cells_per_line = 80
     lines_per_screen = 24
@@ -56,7 +59,8 @@ def __init__(self, opts: Options, parent: QWidget=None, dump_commands: bool=Fals
         self.tracker.dirtied.connect(self.update_screen)
         sclass = DebugStream if dump_commands else Stream
         self.screen = Screen(opts, self.tracker, parent=self)
-        self.screen.write_to_child.connect(self.write_to_child)
+        for s in 'write_to_child title_changed icon_changed'.split():
+            getattr(self.screen, s).connect(getattr(self, s))
         self.stream = sclass(self.screen)
         self.feed = self.stream.feed
         self.last_drew_cursor_at = (0, 0)
@@ -235,3 +239,17 @@ def keyPressEvent(self, ev):
             ev.accept()
             return
         return QWidget.keyPressEvent(self, ev)
+
+    def mousePressEvent(self, ev):
+        if ev.button() == Qt.MiddleButton:
+            c = QApplication.clipboard()
+            if c.supportsSelection():
+                text = c.text(c.Selection)
+                if text:
+                    text = text.encode('utf-8')
+                    if self.screen.in_bracketed_paste_mode():
+                        text = mo.BRACKETED_PASTE_START + text + mo.BRACKETED_PASTE_END
+                    self.send_data_to_child.emit(text)
+                ev.accept()
+                return
+        return QWidget.mousePressEvent(self, ev)

pyte/modes.py

@@ -58,3 +58,9 @@
 #: *Column Mode*: selects the number of columns per line (80 or 132)
 #: on the screen.
 DECCOLM = 3 << 5
+
+#: Bracketed paste mode
+# http://cirw.in/blog/bracketed-paste
+BRACKETED_PASTE = 2004 << 5
+BRACKETED_PASTE_START = '\033[200~'.encode('ascii')
+BRACKETED_PASTE_END = '\033[201~'.encode('ascii')