Plugins/VcsPlugins/vcsMercurial/HgLogDialog.py

changeset 178
dd9f0bca5e2f
child 181
4af57f97c1bc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugins/VcsPlugins/vcsMercurial/HgLogDialog.py	Mon Apr 12 18:00:42 2010 +0000
@@ -0,0 +1,356 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2010 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog to show the output of the hg log command process.
+"""
+
+import os
+
+from PyQt4.QtCore import pyqtSlot, QProcess, SIGNAL, QTimer, QUrl, QByteArray
+from PyQt4.QtGui import QWidget, QDialogButtonBox, QApplication, QMessageBox, \
+    QLineEdit, QTextCursor
+
+from .Ui_HgLogDialog import Ui_HgLogDialog
+from .HgDiffDialog import HgDiffDialog
+
+import Utilities
+import Preferences
+
+class HgLogDialog(QWidget, Ui_HgLogDialog):
+    """
+    Class implementing a dialog to show the output of the hg log command process.
+    
+    The dialog is nonmodal. Clicking a link in the upper text pane shows 
+    a diff of the revisions.
+    """
+    def __init__(self, vcs, mode = "log", parent = None):
+        """
+        Constructor
+        
+        @param vcs reference to the vcs object
+        @param mode mode of the dialog (string, one of log, incoming, outgoing)
+        @param parent parent widget (QWidget)
+        """
+        QWidget.__init__(self, parent)
+        self.setupUi(self)
+        
+        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        
+        self.process = QProcess()
+        self.vcs = vcs
+        if mode in ("log", "incoming", "outgoing"):
+            self.mode = mode
+        else:
+            self.mode = "log"
+        
+        self.contents.setHtml(\
+            self.trUtf8('<b>Processing your request, please wait...</b>'))
+        
+        self.connect(self.process, SIGNAL('finished(int, QProcess::ExitStatus)'),
+            self.__procFinished)
+        self.connect(self.process, SIGNAL('readyReadStandardOutput()'),
+            self.__readStdout)
+        self.connect(self.process, SIGNAL('readyReadStandardError()'),
+            self.__readStderr)
+        
+        self.connect(self.contents, SIGNAL('anchorClicked(const QUrl&)'),
+            self.__sourceChanged)
+        
+        self.revisions = []  # stack of remembered revisions
+        self.revString = self.trUtf8('Revision')
+        
+        self.buf = []        # buffer for stdout
+        self.diff = None
+    
+    def closeEvent(self, e):
+        """
+        Private slot implementing a close event handler.
+        
+        @param e close event (QCloseEvent)
+        """
+        if self.process is not None and \
+           self.process.state() != QProcess.NotRunning:
+            self.process.terminate()
+            QTimer.singleShot(2000, self.process.kill)
+            self.process.waitForFinished(3000)
+        
+        e.accept()
+    
+    def start(self, fn, noEntries = 0):
+        """
+        Public slot to start the hg log command.
+        
+        @param fn filename to show the log for (string)
+        @param noEntries number of entries to show (integer)
+        """
+        self.errorGroup.hide()
+        QApplication.processEvents()
+        
+        self.intercept = False
+        self.filename = fn
+        self.dname, self.fname = self.vcs.splitPath(fn)
+        
+        # find the root of the repo
+        repodir = self.dname
+        while not os.path.isdir(os.path.join(repodir, self.vcs.adminDir)):
+            repodir = os.path.dirname(repodir)
+            if repodir == os.sep:
+                return
+        
+        self.process.kill()
+        
+        self.activateWindow()
+        self.raise_()
+        
+        args = []
+        args.append(self.mode)
+        self.vcs.addArguments(args, self.vcs.options['global'])
+        self.vcs.addArguments(args, self.vcs.options['log'])
+        if noEntries:
+            args.append('--limit')
+            args.append(str(noEntries))
+        args.append('--template')
+        args.append("change|{rev}:{node|short}\n"
+                    "branches|{branches}\n"
+                    "tags|{tags}\n"
+                    "parents|{parents}\n"
+                    "user|{author}\n"
+                    "date|{date|isodate}\n"
+                    "description|{desc}\n"
+                    "file_adds|{file_adds}\n"
+                    "files_mods|{file_mods}\n"
+                    "file_dels|{file_dels}\n"
+                    "@@@\n")
+        if self.fname != "." or self.dname != repodir:
+            args.append(self.filename)
+        
+        self.process.setWorkingDirectory(repodir)
+        
+        self.process.start('hg', args)
+        procStarted = self.process.waitForStarted()
+        if not procStarted:
+            self.inputGroup.setEnabled(False)
+            QMessageBox.critical(None,
+                self.trUtf8('Process Generation Error'),
+                self.trUtf8(
+                    'The process {0} could not be started. '
+                    'Ensure, that it is in the search path.'
+                ).format('hg'))
+    
+    def __procFinished(self, exitCode, exitStatus):
+        """
+        Private slot connected to the finished signal.
+        
+        @param exitCode exit code of the process (integer)
+        @param exitStatus exit status of the process (QProcess.ExitStatus)
+        """
+        self.inputGroup.setEnabled(False)
+        self.inputGroup.hide()
+        
+        self.contents.clear()
+        
+        if not self.buf:
+            self.errors.append(self.trUtf8("No log available for '{0}'")\
+                               .format(self.filename))
+            self.errorGroup.show()
+            return
+        
+        hasInitialText = 0  # three states flag (-1, 0, 1)
+        lvers = 1
+        for s in self.buf:
+            if s == "@@@\n":
+                self.contents.insertHtml('</p>{0}<br/>\n'.format(80 * "="))
+            else:
+                try:
+                    key, value = s.split("|", 1)
+                except ValueError:
+                    key = ""
+                    value = s
+                if key == "change":
+                    if hasInitialText == 1:
+                        self.contents.insertHtml('{0}<br/>\n'.format(80 * "="))
+                        hasInitialText = -1
+                    rev, hexRev = value.split(":")
+                    dstr = '<p><b>{0} {1}</b>'.format(self.revString, value)
+                    try:
+                        lv = self.revisions[lvers]
+                        lvers += 1
+                        url = QUrl()
+                        url.setScheme("file")
+                        url.setPath(self.filename)
+                        query = QByteArray()
+                        query.append(lv.split(":")[0]).append('_').append(rev)
+                        url.setEncodedQuery(query)
+                        dstr += ' [<a href="{0}" name="{1}" id="{1}">{2}</a>]'.format(
+                            url.toString(), 
+                            str(query, encoding="ascii"), 
+                            self.trUtf8('diff to {0}').format(lv), 
+                        )
+                    except IndexError:
+                        pass
+                    dstr += '<br />\n'
+                    self.contents.insertHtml(dstr)
+                elif key == "branches":
+                    if value.strip():
+                        self.contents.insertHtml(self.trUtf8("Branches: {0}<br />\n")\
+                            .format(value.strip()))
+                elif key == "tags":
+                    if value.strip():
+                        self.contents.insertHtml(self.trUtf8("Tags: {0}<br />\n")\
+                            .format(value.strip()))
+                elif key == "parents":
+                    if value.strip():
+                        self.contents.insertHtml(self.trUtf8("Parents: {0}<br />\n")\
+                            .format(value.strip()))
+                elif key == "user":
+                    dstr = self.contents.insertHtml(
+                        self.trUtf8('<i>Author: {0}</i><br />\n').format(value.strip()))
+                elif key == "date":
+                    date, time = value.strip().split()[:2]
+                    dstr = self.contents.insertHtml(
+                        self.trUtf8('<i>Date: {0}, {1}</i><br />\n')\
+                            .format(date, time))
+                elif key == "description":
+                    self.contents.insertHtml(Utilities.html_encode(value.strip()))
+                    self.contents.insertHtml('<br />\n')
+                elif key == "file_adds":
+                    if value.strip():
+                        self.contents.insertHtml('<br />\n')
+                        for f in value.strip().split():
+                            self.contents.insertHtml(
+                                self.trUtf8('Added {0}<br />\n')\
+                                    .format(Utilities.html_encode(f)))
+                elif key == "files_mods":
+                    if value.strip():
+                        self.contents.insertHtml('<br />\n')
+                        for f in value.strip().split():
+                            self.contents.insertHtml(
+                                self.trUtf8('Modified {0}<br />\n')\
+                                    .format(Utilities.html_encode(f)))
+                elif key == "file_dels":
+                    if value.strip():
+                        self.contents.insertHtml('<br />\n')
+                        for f in value.strip().split():
+                            self.contents.insertHtml(
+                                self.trUtf8('Deleted {0}<br />\n')\
+                                    .format(Utilities.html_encode(f)))
+                else:
+                    if value.strip():
+                        self.contents.insertHtml(Utilities.html_encode(value.strip()))
+                    self.contents.insertHtml('<br />\n')
+                    if hasInitialText == 0:
+                        hasInitialText = 1
+        
+        tc = self.contents.textCursor()
+        tc.movePosition(QTextCursor.Start)
+        self.contents.setTextCursor(tc)
+        self.contents.ensureCursorVisible()
+    
+    def __readStdout(self):
+        """
+        Private slot to handle the readyReadStandardOutput signal. 
+        
+        It reads the output of the process and inserts it into a buffer.
+        """
+        self.process.setReadChannel(QProcess.StandardOutput)
+        
+        while self.process.canReadLine():
+            line = str(self.process.readLine(), 
+                        Preferences.getSystem("IOEncoding"), 
+                        'replace')
+            self.buf.append(line)
+            
+            if line.startswith("change|"):
+                ver = line[7:]
+                # save revision number for later use
+                self.revisions.append(ver)
+    
+    def __readStderr(self):
+        """
+        Private slot to handle the readyReadStandardError signal.
+        
+        It reads the error output of the process and inserts it into the
+        error pane.
+        """
+        if self.process is not None:
+            self.errorGroup.show()
+            s = str(self.process.readAllStandardError(), 
+                     Preferences.getSystem("IOEncoding"), 
+                     'replace')
+            self.errors.insertPlainText(s)
+            self.errors.ensureCursorVisible()
+    
+    def __sourceChanged(self, url):
+        """
+        Private slot to handle the sourceChanged signal of the contents pane.
+        
+        @param url the url that was clicked (QUrl)
+        """
+        filename = url.path()
+        if Utilities.isWindowsPlatform():
+            if filename.startswith("/"):
+                filename = filename[1:]
+        ver = bytes(url.encodedQuery()).decode()
+        v1, v2 = ver.split('_')
+        if v1 == "" or v2 == "":
+            return
+        self.contents.scrollToAnchor(ver)
+        
+        if self.diff:
+            del self.diff
+        self.diff = HgDiffDialog(self.vcs)
+        self.diff.show()
+        self.diff.start(filename, [v1, v2])
+    
+    def on_passwordCheckBox_toggled(self, isOn):
+        """
+        Private slot to handle the password checkbox toggled.
+        
+        @param isOn flag indicating the status of the check box (boolean)
+        """
+        if isOn:
+            self.input.setEchoMode(QLineEdit.Password)
+        else:
+            self.input.setEchoMode(QLineEdit.Normal)
+    
+    @pyqtSlot()
+    def on_sendButton_clicked(self):
+        """
+        Private slot to send the input to the hg process.
+        """
+        input = self.input.text()
+        input += os.linesep
+        
+        if self.passwordCheckBox.isChecked():
+            self.errors.insertPlainText(os.linesep)
+            self.errors.ensureCursorVisible()
+        else:
+            self.errors.insertPlainText(input)
+            self.errors.ensureCursorVisible()
+        
+        self.process.write(input)
+        
+        self.passwordCheckBox.setChecked(False)
+        self.input.clear()
+    
+    def on_input_returnPressed(self):
+        """
+        Private slot to handle the press of the return key in the input field.
+        """
+        self.intercept = True
+        self.on_sendButton_clicked()
+    
+    def keyPressEvent(self, evt):
+        """
+        Protected slot to handle a key press event.
+        
+        @param evt the key press event (QKeyEvent)
+        """
+        if self.intercept:
+            self.intercept = False
+            evt.accept()
+            return
+        QWidget.keyPressEvent(self, evt)

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