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Ignore touch-generated mouse events.

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This commit is contained in:
Michael Jumper
2012-11-08 12:41:46 -08:00
parent 944dce0dc0
commit 6332e5015f
1 changed files with 53 additions and 11 deletions
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64
guacamole-common-js/src/main/resources/oskeyboard.js
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@@ -86,6 +86,22 @@ Guacamole.OnScreenKeyboard = function(url) {
*/
var removeClass;
/**
* The number of mousemove events to require before re-enabling mouse
* event handling after receiving a touch event.
*/
this.touchMouseThreshold = 3;
/**
* Counter of mouse events to ignore. This decremented by mousemove, and
* while non-zero, mouse events will have no effect.
* @private
*/
var ignore_mouse = 0;
// Ignore all pending mouse events when touch events are the apparent source
function ignorePendingMouseEvents() { ignore_mouse = on_screen_keyboard.touchMouseThreshold; }
// If Node.classList is supported, implement addClass/removeClass using that
if (Node.classList) {
@@ -336,7 +352,7 @@ Guacamole.OnScreenKeyboard = function(url) {
row.appendChild(key_container_element);
// Set up click handler for key
function press(e) {
function press() {
// Press key if not yet pressed
if (!key.pressed) {
@@ -389,11 +405,9 @@ Guacamole.OnScreenKeyboard = function(url) {
}
e.preventDefault();
}
function release(e) {
function release() {
// Release key if currently pressed
if (key.pressed) {
@@ -412,16 +426,38 @@ Guacamole.OnScreenKeyboard = function(url) {
}
e.preventDefault();
}
key_element.addEventListener("mousedown", press, true);
key_element.addEventListener("touchstart", press, true);
function touchPress(e) {
e.preventDefault();
ignore_mouse = on_screen_keyboard.touchMouseThreshold;
press();
}
key_element.addEventListener("mouseup", release, true);
key_element.addEventListener("mouseout", release, true);
key_element.addEventListener("touchend", release, true);
function touchRelease(e) {
e.preventDefault();
ignore_mouse = on_screen_keyboard.touchMouseThreshold;
release();
}
function mousePress(e) {
e.preventDefault();
if (ignore_mouse == 0)
press();
}
function mouseRelease(e) {
e.preventDefault();
if (ignore_mouse == 0)
release();
}
key_element.addEventListener("touchstart", touchPress, true);
key_element.addEventListener("touchend", touchRelease, true);
key_element.addEventListener("mousedown", mousePress, true);
key_element.addEventListener("mouseup", mouseRelease, true);
key_element.addEventListener("mouseout", mouseRelease, true);
}
@@ -482,8 +518,14 @@ Guacamole.OnScreenKeyboard = function(url) {
keyboard.onmouseup =
keyboard.onmousedown =
function(e) {
// If ignoring events, decrement counter
if (ignore_mouse)
ignore_mouse--;
e.stopPropagation();
return false;
};
/**