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Use tap+hold for click+drag.

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This commit is contained in:
Michael Jumper
2014-03-04 15:14:56 -08:00
parent 6d1c9ba550
commit e54d164113
1 changed files with 32 additions and 10 deletions
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42
guacamole-common-js/src/main/webapp/modules/Mouse.js
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@@ -711,6 +711,11 @@ Guacamole.Mouse.Touchscreen = function(element) {
*/
var click_start_y = null;
/**
* The timeout associated with the delayed, cancellable click release.
*/
var click_release_timeout = null;
/**
* The distance a two-finger touch must move per scrollwheel event, in
* pixels.
@@ -780,6 +785,13 @@ Guacamole.Mouse.Touchscreen = function(element) {
if (e.touches.length !== 0 || e.changedTouches.length !== 1)
return;
// Always release mouse button if pressed
if (guac_touchscreen.currentState.left) {
guac_touchscreen.currentState.left = false;
if (guac_touchscreen.onmouseup)
guac_touchscreen.onmouseup(guac_touchscreen.currentState);
}
// If finger hasn't moved enough to cancel the click
var touch = e.changedTouches[0];
if ( Math.abs(touch.clientX - click_start_x) < guac_touchscreen.clickMoveThreshold
@@ -787,19 +799,22 @@ Guacamole.Mouse.Touchscreen = function(element) {
e.preventDefault();
// Press button
guac_touchscreen.currentState.left = true;
// If not yet pressed, press and start delay release
if (!guac_touchscreen.currentState.left) {
// Fire press event, if defined
if (guac_touchscreen.onmousedown)
guac_touchscreen.onmousedown(guac_touchscreen.currentState);
// Press button
guac_touchscreen.currentState.left = true;
if (guac_touchscreen.onmousedown)
guac_touchscreen.onmousedown(guac_touchscreen.currentState);
// Release button
guac_touchscreen.currentState.left = false;
// Release button after a delay, if not canceled
click_release_timeout = window.setTimeout(function() {
guac_touchscreen.currentState.left = false;
if (guac_touchscreen.onmouseup)
guac_touchscreen.onmouseup(guac_touchscreen.currentState);
}, guac_touchscreen.clickTimingThreshold);
// Fire release event when the last touch is released, if event defined
if (guac_touchscreen.onmouseup)
guac_touchscreen.onmouseup(guac_touchscreen.currentState);
}
}
@@ -820,6 +835,12 @@ Guacamole.Mouse.Touchscreen = function(element) {
click_start_x = touch.clientX;
click_start_y = touch.clientY;
// Clear timeout, if set
if (click_release_timeout) {
window.clearTimeout(click_release_timeout);
click_release_timeout = null;
}
}, false);
element.addEventListener("touchmove", function(e) {
@@ -832,6 +853,7 @@ Guacamole.Mouse.Touchscreen = function(element) {
if (guac_touchscreen.currentState.left) {
e.preventDefault();
e.stopPropagation();
// Get touch
var touch = e.touches[0];