},
{
"listeners" : {
- "scroll_event" : "( event) => {\n //Sprint(\"scroll event\");\n var y = _this.filelayout.el.y;\n var dir = event.direction;\n switch (dir) {\n case Clutter.ScrollDirection.UP:\n y += event.y /2;\n break;\n case Clutter.ScrollDirection.DOWN:\n y -= event.y /2 ;\n break;\n default:\n return false;\n }\n // range of scroll -- can go up -- eg.. -ve value.\n \n y = float.min(0, y);\n \n // to work out the max -ve number\n // height of filelayout\n // height of scrollactor..\n \n var last_child_bottom = _this.filelayout.el.last_child.y + _this.filelayout.el.last_child.height;\n if ( (-1 * (y+200)) > ( last_child_bottom - this.el.height)) {\n _this.filelayout.el.y = -1 * ( last_child_bottom - this.el.height);\n \n return false;\n }\n\n\n \n \n// print(\"\\nlast child - this height = %f ==== new y %f\\n \".printf( \n // last_child_bottom - this.el.height,\n // y)); \n // y = float.min(0, y); //??\n // print(\"scroll event of %f - new y = %f \".printf(event.y, y));\n print(\"Set scroll to %f (lcb=%f / height = %f)\\n\", y, last_child_bottom, this.el.height);\n \n _this.filelayout.el.y = y;\n return true;\n \n}"
+ "scroll_event" : "( event) => {\n //Sprint(\"scroll event\");\n var y = _this.filelayout.el.y;\n var dir = event.direction;\n switch (dir) {\n case Clutter.ScrollDirection.UP:\n y += event.y /2;\n break;\n case Clutter.ScrollDirection.DOWN:\n y -= event.y /2 ;\n break;\n default:\n return false;\n }\n // range of scroll -- can go up -- eg.. -ve value.\n \n y = float.min(0, y);\n \n // to work out the max -ve number\n // height of filelayout\n // height of scrollactor..\n \n var last_child_bottom = _this.filelayout.el.last_child.y + _this.filelayout.el.last_child.height;\n if ( (-1 * (y+200)) > ( last_child_bottom - this.el.height)) {\n var nv = _this.filelayout.el.y ;\n if (nv != -1 * ( last_child_bottom - this.el.height) {\n \n _this.filelayout.el.y = -1 * ( last_child_bottom - this.el.height);\n }\n \n return false;\n }\n\n\n \n \n// print(\"\\nlast child - this height = %f ==== new y %f\\n \".printf( \n // last_child_bottom - this.el.height,\n // y)); \n // y = float.min(0, y); //??\n // print(\"scroll event of %f - new y = %f \".printf(event.y, y));\n print(\"Set scroll to %f (lcb=%f / height = %f)\\n\", y, last_child_bottom, this.el.height);\n \n _this.filelayout.el.y = y;\n return true;\n \n}"
},
"# Gee.ArrayList<Xcls_fileitem> fileitems" : "new Gee.ArrayList<Xcls_fileitem>()",
"id" : "scroller",
var last_child_bottom = _this.filelayout.el.last_child.y + _this.filelayout.el.last_child.height;
if ( (-1 * (y+200)) > ( last_child_bottom - this.el.height)) {
- _this.filelayout.el.y = -1 * ( last_child_bottom - this.el.height);
+ var nv = _this.filelayout.el.y ;
+ if (nv != -1 * ( last_child_bottom - this.el.height) {
+
+ _this.filelayout.el.y = -1 * ( last_child_bottom - this.el.height);
+ }
return false;
}