} else if ( direction === 'up' || direction === 'down' ) { /* * Looks for the in-document character position that would match up with the same horizontal * position - jumping a few pixels up/down at a time until we reach the next/previous line */ var oldPosition = this.documentView.getRenderedPosition( this.cursor.offset ); if ( this.cursor.initialLeft === null ) { this.cursor.initialLeft = oldPosition.left; } var fakePosition = new es.Position( this.cursor.initialLeft, oldPosition.top ), i = 1, offset, step, edge; if ( direction === 'up' ) { step = -5; edge = 0; } else { step = 5; edge = this.documentView.getLength(); } do { fakePosition.top += i++ * step; offset = this.documentView.getOffsetFromPosition( fakePosition ); fakePosition = this.documentView.getRenderedPosition( offset ); fakePosition.left = this.cursor.initialLeft; } while ( oldPosition.top === fakePosition.top && offset !== edge ); this.showCursor( this.documentView.getOffsetFromPosition( fakePosition ) ); } } else if ( direction === 'up' || direction === 'down' ) { /* * Looks for the in-document character position that would match up with the same horizontal * position - jumping a few pixels up/down at a time until we reach the next/previous line */ var oldPosition = this.documentView.getRenderedPosition( this.cursor.offset ); if ( this.cursor.initialLeft === null ) { this.cursor.initialLeft = oldPosition.left; } var fakePosition = new es.Position( this.cursor.initialLeft, oldPosition.top ), i = 1, offset, step, edge; if ( direction === 'up' ) { step = -5; edge = 0; } else { step = 5; edge = this.documentView.getLength(); } do { fakePosition.top += i++ * step; offset = this.documentView.getOffsetFromPosition( fakePosition ); fakePosition = this.documentView.getRenderedPosition( offset ); fakePosition.left = this.cursor.initialLeft; } while ( oldPosition.top === fakePosition.top && offset !== edge ); this.showCursor( this.documentView.getOffsetFromPosition( fakePosition ) ); }