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Indent based on last indent

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斟酌 鵬兄 2016-04-07 06:10:17 +08:00
parent 3db6a5d0b0
commit 397239705c
1 changed files with 97 additions and 2 deletions
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99
botanjs/src/Components/Vim/Actions/INSERT.js
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@ -10,6 +10,11 @@
var Mesg = __import( "Components.Vim.Message" );
// Phantom indent
var IN_START = 0;
var IN_END = 1;
var IN_DEL = 2;
var Translate = function( c )
{
switch( c )
@ -47,6 +52,10 @@
INSERT.prototype.dispose = function()
{
if( this.__cancelIndent() )
{
this.__cursor.feeder.pan();
}
this.__msg = "";
this.__rec( "", true );
this.__cursor.moveX( -1 );
@ -105,8 +114,9 @@
var feeder = cur.feeder;
// Backspace
if( e.kMap( "BS" ) )
if( e.kMap( "BS" ) || e.kMap( "S-BS" ) )
{
this.__realizeIndent();
var oY = feeder.panY + cur.Y;
if( cur.X == 0 && feeder.panY == 0 && cur.Y == 0 ) return;
@ -128,8 +138,9 @@
if( 0 < this.__insertLen ) this.__insertLen --;
this.__punch --;
}
else if( e.kMap( "Del" ) )
else if( e.kMap( "Del" ) || e.kMap( "S-Del" ) )
{
this.__realizeIndent();
var f = cur.aPos;
this.__contentUndo += feeder.content.substr( f, 1 );
@ -175,9 +186,11 @@
feeder.pan();
cur.moveY( 1 );
cur.lineStart();
this.__autoIndent( e );
}
else
{
this.__realizeIndent();
feeder.pan();
cur.moveX( 1, false, true );
}
@ -187,6 +200,88 @@
this.__rec( inputChar );
};
INSERT.prototype.__realizeIndent = function()
{
var ind = this.__phantomIndent;
if( !this.__phantomIndent ) return;
l = ind[ IN_END ];
for( var i = ind[ IN_START ]; i < l; i ++ )
{
this.__rec( this.__cursor.feeder.content[ i ] );
}
this.__contentUndo = ind[ IN_DEL ] + this.__contentUndo;
this.__phantomIndent = null;
};
INSERT.prototype.__autoIndent = function( e )
{
var carried = this.__cancelIndent();
var cur = this.__cursor;
var feeder = cur.feeder;
var f = cur.aPos;
// Get the last indent
var i = feeder.content.lastIndexOf( "\n", f - 2 );
var line = feeder.content.substring( i + 1, f - 1 ) || carried;
// Find Last indent
while( line == "" && 0 < i )
{
var j = i;
i = feeder.content.lastIndexOf( "\n", j - 2 );
line = feeder.content.substring( i + 1, j - 1 );
}
var inDel = "";
// Indent removed
for( var ir = f; "\t ".indexOf( feeder.content[ ir ] ) != -1; ir ++ )
{
inDel += feeder.content[ ir ];
}
// Copy the indentation
for( i = 0; "\t ".indexOf( line[i] ) != -1; i ++ );
if( line )
{
feeder.content =
feeder.content.substring( 0, f )
+ line.substr( 0, i )
+ feeder.content.substring( ir );
feeder.softReset();
feeder.pan();
cur.moveX( i, false, true );
var a = [];
a[ IN_START ] = f;
a[ IN_END ] = f + i;
a[ IN_DEL ] = inDel;
this.__phantomIndent = a;
}
};
INSERT.prototype.__cancelIndent = function()
{
var ind = this.__phantomIndent;
if( !ind ) return "";
var cur = this.__cursor;
var feeder = cur.feeder;
var canceled = feeder.content.substring( ind[ IN_START ], ind[ IN_END ] );
feeder.content =
feeder.content.substring( 0, ind[ IN_START ] )
+ feeder.content.substring( ind[ IN_END ] );
this.__phantomIndent = null;
return canceled;
}
INSERT.prototype.getMessage = function()
{
return this.__msg;