/// <summary>
/// Call this on SCN_MODIFIED event from scintilla to update the info on lines
/// </summary>
public static void UpdateLinesInfo(SCNotification scn, bool isInsertion)
{
Lines.OnScnModified(scn, isInsertion);
}
/// <summary>
/// handles the notifications send by npp and scintilla to the plugin
/// </summary>
public static void OnNppNotification(SCNotification nc)
{
try {
uint code = nc.nmhdr.code;
#region Basic notifications
switch (code) {
case (uint) NppNotif.NPPN_TBMODIFICATION:
UnmanagedExports.FuncItems.RefreshItems();
DoNppNeedToolbarImages();
return;
case (uint) NppNotif.NPPN_READY:
// notify plugins that all the procedures of launchment of notepad++ are done
// call OnNppReady then OnPlugReady if it all went ok
PluginIsReady = DoNppReady();
if (PluginIsReady) {
DoPlugStart();
// set hooks on mouse/keyboard
SetHooks();
PluginIsFullyLoaded = true;
}
return;
case (uint) NppNotif.NPPN_SHUTDOWN:
// uninstall hooks on mouse/keyboard
UninstallHooks();
DoNppShutDown();
PluginIsReady = false;
return;
}
#endregion
// Only do stuff when the dll is fully loaded
if (!PluginIsReady)
return;
switch (code) {
// the user changed the current document
case (uint) NppNotif.NPPN_BUFFERACTIVATED:
DoNppBufferActivated();
return;
case (uint)NppNotif.NPPN_FILESAVED:
DoNppDocumentSaved();
return;
case (uint)NppNotif.NPPN_FILEBEFORELOAD:
// fire when a file is opened (the event NPPN_FILEBEFOREOPEN is fired after SciNotif.SCN_MODIFIED
// and just before NppNotif.NPPN_BUFFERACTIVATED so it's not very useful...)
DoNppFileBeforeLoad();
return;
case (uint)NppNotif.NPPN_FILEOPENED:
// on file opened
OnNppFileOpened();
return;
case (uint)NppNotif.NPPN_FILEBEFORECLOSE:
// on file closed
OnNppFileBeforeClose();
return;
}
// only do extra stuff if we are in a progress file
if (!CurrentFileAllowed)
return;
#region extra
switch (code) {
case (uint)NppNotif.NPPN_FILEBEFORESAVE:
// on file saved
OnNppFileBeforeSaved();
return;
case (uint)NppNotif.NPPN_SHORTCUTREMAPPED:
// notify plugins that plugin command shortcut is remapped
//NppMenu.ShortcutsUpdated((int) nc.nmhdr.idFrom, (ShortcutKey) Marshal.PtrToStructure(nc.nmhdr.hwndFrom, typeof (ShortcutKey)));
return;
// --------------------------------------------------------
// Scintilla message
// --------------------------------------------------------
case (uint) SciNotif.SCN_CHARADDED:
// called each time the user add a char in the current scintilla
OnSciCharTyped((char) nc.ch);
return;
case (uint) SciNotif.SCN_UPDATEUI:
OnSciUpdateUi(nc);
return;
case (uint) SciNotif.SCN_MODIFIED:
OnSciModified(nc);
return;
case (uint) SciNotif.SCN_STYLENEEDED:
// if we use the contained lexer, we will receive this notification and we will have to style the text
//Style.Colorize(Npp.GetSylingNeededStartPos(), nc.position);
return;
case (uint) SciNotif.SCN_MARGINCLICK:
// called each time the user click on a margin
OnSciMarginClick(nc);
return;
case (uint) SciNotif.SCN_MODIFYATTEMPTRO:
// Code a checkout when trying to modify a read-only file
return;
case (uint) SciNotif.SCN_DWELLSTART:
// when the user hover at a fixed position for too long
OnSciDwellStart();
return;
case (uint) SciNotif.SCN_DWELLEND:
// when he moves his cursor
OnSciDwellEnd();
return;
}
#endregion
} catch (Exception e) {
ErrorHandler.ShowErrors(e, "Error in beNotified : code = " + nc.nmhdr.code);
}
}
/// <summary>
/// Updates the line info when inserting text
/// </summary>
/// <param name="scn"></param>
private void OnInsertedText(SCNotification scn)
{
var startLine = SciLineFromPosition(scn.position);
if (scn.linesAdded == 0) {
var insCharLenght = GetCharCount(scn.position, scn.length);
SetHoleInLine(startLine, insCharLenght);
} else {
var startCharPos = CharPositionFromLine(startLine);
var lineByteStart = SciPositionFromLine(startLine);
var lineByteLength = SciLineLength(startLine);
var lineCharLenght = GetCharCount(lineByteStart, lineByteLength);
var insCharLenght = lineCharLenght - LineCharLength(startLine);
FillTheHole();
for (int i = 0; i < scn.linesAdded; i++) {
startCharPos += lineCharLenght;
var line = startLine + i + 1;
lineByteStart += lineByteLength;
lineByteLength = SciLineLength(line);
lineCharLenght = GetCharCount(lineByteStart, lineByteLength);
insCharLenght += lineCharLenght;
_linesList.Insert(line, startCharPos);
}
SetHoleInLine(startLine + scn.linesAdded, insCharLenght);
FillTheHole();
// We should not have a null lenght, but we actually can :
// when a file is modified outside npp, npp suggests to reload it, a modified notification is sent
// but is it sent BEFORE the text is actually put into scintilla! So what we do here doesn't work at all
// so in that case, we need to refresh the info when the text is acutally inserted, that is after updateui
if (TextLength == 0) {
Plug.ActionsAfterUpdateUi.Enqueue(Reset);
}
}
}
/// <summary>
/// updates the line info when deleting text
/// </summary>
/// <param name="scn"></param>
private void OnDeletedText(SCNotification scn)
{
var startLine = SciLineFromPosition(scn.position);
if (scn.linesAdded == 0) {
var delCharLenght = GetCharCount(scn.text, scn.length, _lastEncoding);
SetHoleInLine(startLine, -delCharLenght);
} else {
var lineByteStart = SciPositionFromLine(startLine);
var lineByteLength = SciLineLength(startLine);
var delCharLenght = -(GetCharCount(lineByteStart, lineByteLength) - LineCharLength(startLine));
FillTheHole();
for (int i = 0; i < -scn.linesAdded; i++) {
delCharLenght += LineCharLength(startLine + 1);
_linesList.RemoveAt(startLine + 1);
}
SetHoleInLine(startLine, -delCharLenght);
FillTheHole();
}
}
/// <summary>
/// Simulates the insertion of the whole text, use this to reset the lines info
/// (when switching document for instance)
/// </summary>
internal void Reset()
{
_lastEncoding = Npp.Encoding;
_oneByteCharEncoding = _lastEncoding.Equals(Encoding.Default);
// bypass the hard work for simple encoding
if (_oneByteCharEncoding)
return;
_linesList = new GapBuffer<int> { 0, 0 };
var scn = new SCNotification {
linesAdded = SciGetLineCount() - 1,
position = 0,
length = SciGetLength()
};
scn.text = Npp.Sci.Send(SciMsg.SCI_GETRANGEPOINTER, new IntPtr(scn.position), new IntPtr(scn.length));
OnInsertedText(scn);
}
/// <summary>
/// When receiving a modification notification by scintilla
/// </summary>
public void OnScnModified(SCNotification scn, bool isInsertion)
{
_lastEncoding = Npp.Encoding;
_oneByteCharEncoding = _lastEncoding.Equals(Encoding.Default);
// bypass the hard work for simple encoding
if (_oneByteCharEncoding)
return;
if (isInsertion) {
OnInsertedText(scn);
} else {
OnDeletedText(scn);
}
}