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Simplify autoscroll.

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This commit is contained in:
Michael Jumper
2012-04-06 13:07:46 -07:00
parent be4d86cfc2
commit 7fde111c1b
1 changed files with 6 additions and 16 deletions
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22
guacamole/src/main/webapp/scripts/interface.js
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@@ -476,27 +476,17 @@ GuacamoleUI.attach = function(guac) {
var view_width = GuacamoleUI.viewport.offsetWidth;
var view_height = GuacamoleUI.viewport.offsetHeight;
// Determine scroll amounts based on mouse position relative to document
var scroll_amount_x;
// Scroll horizontally if necessary
if (mouse_view_x > view_width)
scroll_amount_x = mouse_view_x - view_width;
GuacamoleUI.viewport.scrollLeft += mouse_view_x - view_width;
else if (mouse_view_x < 0)
scroll_amount_x = mouse_view_x;
else
scroll_amount_x = 0;
GuacamoleUI.viewport.scrollLeft += mouse_view_x;
var scroll_amount_y;
// Scroll vertically if necessary
if (mouse_view_y > view_height)
scroll_amount_y = mouse_view_y - view_height;
GuacamoleUI.viewport.scrollTop += mouse_view_y - view_height;
else if (mouse_view_y < 0)
scroll_amount_y = mouse_view_y;
else
scroll_amount_y = 0;
// Scroll (if necessary) to keep mouse on screen.
GuacamoleUI.viewport.scrollLeft += scroll_amount_x;
GuacamoleUI.viewport.scrollTop += scroll_amount_y;
GuacamoleUI.viewport.scrollTop += mouse_view_y;
// Send mouse event
guac.sendMouseState(mouseState);