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fixed G / gg issue on some cases

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This commit is contained in:
斟酌 鵬兄 2016-03-18 08:34:36 +08:00
parent f227c7e16b
commit b17ca21420
1 changed files with 42 additions and 20 deletions
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62
botanjs/src/Components/Vim/Cursor.js
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@ -55,6 +55,25 @@
return offset;
};
// Rush cursor to wanted position "d" then get the actual position
var GetRushPos = function( c, d )
{
var line = c.getLine();
var l = c.Y + d;
var i = c.Y;
// First line ( visual ) does not count
if( line != c.feeder.firstBuffer ) i --;
for( ; i < l; line = line.nextLine )
{
if( line.placeholder ) break;
if( line.br ) i ++;
}
return i;
};
var Cursor = function( feeder )
{
/** @type {Components.Vim.LineFeeder} */
@ -151,24 +170,26 @@
Cursor.prototype.moveY = function( d, penentrate )
{
var i;
var Y = this.Y + d;
var feeder = this.feeder;
var line;
if( Y < 0 )
{
this.feeder.pan( undefined, d );
feeder.pan( undefined, d );
this.Y = 0;
this.moveX();
this.updatePosition();
this.feeder.softReset();
feeder.softReset();
return;
}
else if( this.feeder.moreAt < Y )
// More at bottom, start panning
else if( !feeder.EOF && feeder.moreAt < Y )
{
var feeder = this.feeder;
var i = 0;
if( penentrate )
{
@ -180,6 +201,8 @@
{
feeder.pan( undefined, 1 );
}
i = GetRushPos( this, d );
}
else
{
@ -204,15 +227,16 @@
// The line number cursor need to be in
Y = lastLine + lineShift;
}
// Calculate the visual line position "i"
for( i = 0, line = feeder.firstBuffer;
line != feeder.lastBuffer;
line = line.next )
{
if( line.br ) i ++;
if( line.lineNum == Y || line.next.placeholder ) break;
// Calculate the visual line position "i"
for( i = 0, line = feeder.firstBuffer;
line != feeder.lastBuffer;
line = line.next )
{
if( line.br ) i ++;
if( line.lineNum == Y || line.next.placeholder ) break;
}
}
this.Y = i;
@ -220,20 +244,18 @@
this.moveX();
this.updatePosition();
// Because it is panned, soft reset is needed
feeder.softReset();
return;
}
else if ( 0 < d )
{
// If panning is forward
// and next line does not exists
line = this.getLine().nextLine;
if( !line || line.placeholder )
{
// do nothing
return;
}
var line = this.getLine();
// If already at bottom
if( line.nextLine.placeholder ) return;
Y = GetRushPos( this, d );
}
this.Y = Y;