wikimedia/mediawiki-extensions-VisualEditor
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Basic support for cursor up and down (with and without selectiong/shift key down)

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This commit is contained in:
Inez Korczynski 2011-11-04 18:50:39 +00:00
parent b13b805f2b
commit f9b0cfae9a
1 changed files with 37 additions and 1 deletions
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38
modules/es/views/es.SurfaceView.js
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@ -251,7 +251,43 @@ es.SurfaceView.prototype.moveCursor = function( instruction ) {
this.hideCursor();
}
} else if ( instruction === 'up' || instruction === 'down' ) {
// ...
var currentPosition = this.documentView.getRenderedPositionFromOffset( this.selection.to );
if ( this.cursor.initialLeft === null ) {
this.cursor.initialLeft = currentPosition.left;
}
var fakePosition = new es.Position( this.cursor.initialLeft, currentPosition.top ),
offset, step, edge, i = 0;
if ( instruction === 'up' ) {
step = -5;
edge = 0;
} else {
step = 5;
edge = this.documentView.getContentLength();
}
do {
fakePosition.top += ++i * step;
offset = this.documentView.getOffsetFromRenderedPosition( fakePosition );
fakePosition = this.documentView.getRenderedPositionFromOffset( offset );
fakePosition.left = this.cursor.initialLeft;
} while ( currentPosition.top === fakePosition.top && offset !== edge );
if ( !this.keyboard.keys.shift ) {
this.selection.from = this.selection.to = this.documentView.getOffsetFromRenderedPosition( fakePosition );
this.documentView.clearSelection();
this.showCursor();
} else {
this.selection.to = this.documentView.getOffsetFromRenderedPosition( fakePosition );
this.documentView.drawSelection( this.selection );
this.hideCursor();
}
} else if ( instruction === 'home' ) {
var offset = this.cursor.initialBias ? this.documentView.getModel().getRelativeContentOffset( this.selection.to, -1 ) : this.selection.to;
offset = this.documentView.getRenderedLineRangeFromOffset( offset ).start;