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Added time-buffer to emitting updates

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This commit is contained in:
Trevor Parscal 2011-11-23 23:42:41 +00:00
parent a7a771e06c
commit b8b3ed57e2
1 changed files with 15 additions and 3 deletions
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18
modules/es/views/es.SurfaceView.js
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@ -27,6 +27,7 @@ es.SurfaceView = function( $container, model ) {
this.$cursor = $( '<div class="es-surfaceView-cursor"></div>' ) this.$cursor = $( '<div class="es-surfaceView-cursor"></div>' )
.appendTo( this.$ ); .appendTo( this.$ );
this.updateSelectionTimeout = undefined; this.updateSelectionTimeout = undefined;
this.emitUpdateTimeoue = undefined;
// Interaction states // Interaction states
@ -72,9 +73,9 @@ es.SurfaceView = function( $container, model ) {
_this.updateSelection( 0 ); _this.updateSelection( 0 );
} ); } );
this.model.getDocument().on( 'update', function() { this.model.getDocument().on( 'update', function() {
_this.emit( 'update' ); _this.emitUpdate( 25 );
// Respond to layout changes // Respond to layout changes
_this.updateSelection( 50 ); _this.updateSelection( 25 );
} ); } );
this.$.mousedown( function(e) { this.$.mousedown( function(e) {
return _this.onMouseDown( e ); return _this.onMouseDown( e );
@ -153,7 +154,18 @@ es.SurfaceView.prototype.updateSelection = function( delay ) {
_this.documentView.clearSelection( _this.currentSelection ); _this.documentView.clearSelection( _this.currentSelection );
} }
_this.updateSelectionTimeout = undefined; _this.updateSelectionTimeout = undefined;
}, delay ); }, delay || 0 );
};
es.SurfaceView.prototype.emitUpdate = function( delay ) {
if ( this.emitUpdateTimeout !== undefined ) {
return;
}
var _this = this;
this.emitUpdateTimeout = setTimeout( function() {
_this.emit( 'update' );
_this.emitUpdateTimeout = undefined;
}, delay || 0 );
}; };
es.SurfaceView.prototype.onMouseDown = function( e ) { es.SurfaceView.prototype.onMouseDown = function( e ) {