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Proper workaround for Chrome's scrollbar bug 

Avoid applying this workaround more than necessary. Also comment a
bit more why this hack is needed.
This commit is contained in:
Pierre Ossman 2017-02-16 16:28:55 +01:00 committed by Samuel Mannehed
parent b56772ec43
commit e677b66cc7
1 changed files with 16 additions and 10 deletions
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26
app/ui.js
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@ -1241,6 +1241,7 @@ var UI;
} else if (resizeMode === 'scale' || resizeMode === 'downscale') {
var downscaleOnly = resizeMode === 'downscale';
display.autoscale(screen.w, screen.h, downscaleOnly);
UI.fixScrollbars();
}
}
},
@ -1248,16 +1249,7 @@ var UI;
// Gets the the size of the available viewport in the browser window
screenSize: function() {
var screen = document.getElementById('noVNC_screen');
var width, height;
screen.style.overflow = "hidden";
width = screen.offsetWidth;
height = screen.offsetHeight;
screen.style.overflow = "auto";
return {w: width, h: height};
return {w: screen.offsetWidth, h: screen.offsetHeight};
},
// Normally we only apply the current resize mode after a window resize
@ -1311,6 +1303,7 @@ var UI;
// When clipping is enabled, the screen is limited to
// the size of the browser window.
display.viewportChangeSize(size.w, size.h);
UI.fixScrollbars();
}
// Changing the viewport may change the state of
@ -1667,6 +1660,19 @@ var UI;
updateSessionSize: function(rfb, width, height) {
UI.updateViewClip();
UI.fixScrollbars();
},
fixScrollbars: function() {
// This is a hack because Chrome screws up the calculation
// for when scrollbars are needed. So to fix it we temporarily
// toggle them off and on.
var screen = document.getElementById('noVNC_screen');
screen.style.overflow = 'hidden';
// Force Chrome to recalculate the layout by asking for
// an element's dimensions
screen.getBoundingClientRect();
screen.style.overflow = null;
},
updateDesktopName: function(rfb, name) {