changeset 42073:80103ed2e8ee

crecord: new keys g & G to navigate to the top and bottom respectively This patch introduces two new keys 'g' and 'G' that helps to navigate to the top and bottom of the file/hunk/line respectively. This is inline with the shortcuts used in man, less, more and such tools that makes it convenient to navigate swiftly. 'g' or HOME navigates to the top most file in the ncurses window. 'G' or END navigates to the bottom most file/hunk/line depending on the whether the fold is active or not. If the bottom most file is folded, it navigates to that file and stops there. If the bottom most file is unfolded, it navigates to the bottom most hunk in that file and stops there. If the bottom most hunk is unfolded, it navigates to the bottom most line in that hunk. Differential Revision: https://phab.mercurial-scm.org/D6178
author Arun Chandrasekaran <aruncxy@gmail.com>
date Mon, 01 Apr 2019 22:11:54 -0700
parents fc0095256513
children 59b1bdf85b1a
files mercurial/crecord.py
diffstat 1 files changed, 45 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/crecord.py	Thu Apr 04 10:41:55 2019 -0400
+++ b/mercurial/crecord.py	Mon Apr 01 22:11:54 2019 -0700
@@ -1467,6 +1467,8 @@
         pgup/pgdn [K/J] : go to previous/next item of same type
  right/left-arrow [l/h] : go to child item / parent item
  shift-left-arrow   [H] : go to parent header / fold selected header
+                      g : go to the top
+                      G : go to the bottom
                       f : fold / unfold item, hiding/revealing its children
                       F : fold / unfold parent item and all of its ancestors
                  ctrl-l : scroll the selected line to the top of the screen
@@ -1505,6 +1507,45 @@
         self.stdscr.refresh()
         self.stdscr.keypad(1) # allow arrow-keys to continue to function
 
+    def handlefirstlineevent(self):
+        """
+        Handle 'g' to navigate to the top most file in the ncurses window.
+        """
+        self.currentselecteditem = self.headerlist[0]
+        currentitem = self.currentselecteditem
+        # select the parent item recursively until we're at a header
+        while True:
+            nextitem = currentitem.parentitem()
+            if nextitem is None:
+                break
+            else:
+                currentitem = nextitem
+
+        self.currentselecteditem = currentitem
+
+    def handlelastlineevent(self):
+        """
+        Handle 'G' to navigate to the bottom most file/hunk/line depending
+        on the whether the fold is active or not.
+
+        If the bottom most file is folded, it navigates to that file and
+        stops there. If the bottom most file is unfolded, it navigates to
+        the bottom most hunk in that file and stops there. If the bottom most
+        hunk is unfolded, it navigates to the bottom most line in that hunk.
+        """
+        currentitem = self.currentselecteditem
+        nextitem = currentitem.nextitem()
+        # select the child item recursively until we're at a footer
+        while nextitem is not None:
+            nextitem = currentitem.nextitem()
+            if nextitem is None:
+                break
+            else:
+                currentitem = nextitem
+
+        self.currentselecteditem = currentitem
+        self.recenterdisplayedarea()
+
     def confirmationwindow(self, windowtext):
         "display an informational window, then wait for and return a keypress."
 
@@ -1725,6 +1766,10 @@
             self.togglefolded(foldparent=True)
         elif keypressed in ["m"]:
             self.commitMessageWindow()
+        elif keypressed in ["g", "KEY_HOME"]:
+            self.handlefirstlineevent()
+        elif keypressed in ["G", "KEY_END"]:
+            self.handlelastlineevent()
         elif keypressed in ["?"]:
             self.helpwindow()
             self.stdscr.clear()