comparison mercurial/crecord.py @ 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

42072:fc0095256513

                      A : (un-)select all items
    up/down-arrow [k/j] : go to previous/next unfolded item
        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
                      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
                      m : edit / resume editing the commit message
                      e : edit the currently selected hunk

        curses.endwin()
        self.commenttext = self.ui.edit(self.commenttext, self.ui.username())
        curses.cbreak()
        self.stdscr.refresh()
        self.stdscr.keypad(1) # allow arrow-keys to continue to function

    def confirmationwindow(self, windowtext):
        "display an informational window, then wait for and return a keypress."

        confirmwin = curses.newwin(self.yscreensize, 0, 0, 0)

            self.togglefolded()
        elif keypressed in ["F"]:
            self.togglefolded(foldparent=True)
        elif keypressed in ["m"]:
            self.commitMessageWindow()
        elif keypressed in ["?"]:
            self.helpwindow()
            self.stdscr.clear()
            self.stdscr.refresh()
        elif curses.unctrl(keypressed) in ["^L"]:

42073:80103ed2e8ee

                      A : (un-)select all items
    up/down-arrow [k/j] : go to previous/next unfolded item
        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
                      m : edit / resume editing the commit message
                      e : edit the currently selected hunk

        curses.endwin()
        self.commenttext = self.ui.edit(self.commenttext, self.ui.username())
        curses.cbreak()
        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."

        confirmwin = curses.newwin(self.yscreensize, 0, 0, 0)

            self.togglefolded()
        elif keypressed in ["F"]:
            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()
            self.stdscr.refresh()
        elif curses.unctrl(keypressed) in ["^L"]: