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Experimental auto-scroll of UI when mouse goes offscreen.

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This commit is contained in:
Michael Jumper
2012-01-23 12:06:46 -08:00
parent 0e351933bd
commit e4ba210020
1 changed files with 31 additions and 0 deletions
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31
guacamole/src/main/webapp/scripts/interface.js
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@@ -261,7 +261,38 @@ GuacamoleUI.attach = function(guac) {
var mouse = new Guacamole.Mouse(GuacamoleUI.display);
mouse.onmousedown = mouse.onmouseup = mouse.onmousemove =
function(mouseState) {
// Determine mouse position within view
var mouse_view_x = mouseState.x + GuacamoleUI.display.offsetLeft - window.pageXOffset;
var mouse_view_y = mouseState.y + GuacamoleUI.display.offsetTop - window.pageYOffset;
var view_width = document.body.clientWidth;
var view_height = document.body.clientHeight;
// Determine scroll amounts based on mouse position relative to document
var scroll_amount_x;
if (mouse_view_x > view_width)
scroll_amount_x = mouse_view_x - view_width;
else if (mouse_view_x < 0)
scroll_amount_x = mouse_view_x;
else
scroll_amount_x = 0;
var scroll_amount_y;
if (mouse_view_y > view_height)
scroll_amount_y = 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.
window.scrollBy(scroll_amount_x, scroll_amount_y);
// Send mouse event
guac.sendMouseState(mouseState);
};
// Keyboard