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Add alt key hook to keyboard event handler (just in case :-)

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This commit is contained in:
Dave C-J
2014-05-14 14:17:26 +01:00
parent 0e35b65afd
commit a76f48f50b
1 changed files with 10 additions and 8 deletions
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18
public/red/ui/keyboard.js
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@@ -14,17 +14,18 @@
* limitations under the License.
**/
RED.keyboard = function() {
var active = true;
var handlers = {};
d3.select(window).on("keydown",function() {
if (!active) { return; }
var handler = handlers[d3.event.keyCode];
if (handler && handler.ondown) {
if (!handler.modifiers ||
((!handler.modifiers.shift || d3.event.shiftKey)&&
(!handler.modifiers.ctrl || d3.event.ctrlKey))) {
((!handler.modifiers.shift || d3.event.shiftKey) &&
(!handler.modifiers.ctrl || d3.event.ctrlKey ) &&
(!handler.modifiers.alt || d3.event.altKey ) )) {
handler.ondown();
}
}
@@ -34,8 +35,9 @@ RED.keyboard = function() {
var handler = handlers[d3.event.keyCode];
if (handler && handler.onup) {
if (!handler.modifiers ||
((!handler.modifiers.shift || d3.event.shiftKey)&&
(!handler.modifiers.ctrl || d3.event.ctrlKey))) {
((!handler.modifiers.shift || d3.event.shiftKey) &&
(!handler.modifiers.ctrl || d3.event.ctrlKey ) &&
(!handler.modifiers.alt || d3.event.altKey ) )) {
handler.onup();
}
}
@@ -44,7 +46,7 @@ RED.keyboard = function() {
var mod = modifiers;
var cbdown = ondown;
var cbup = onup;
if (typeof modifiers == "function") {
mod = {};
cbdown = modifiers;
@@ -55,7 +57,7 @@ RED.keyboard = function() {
function removeHandler(key) {
delete handlers[key];
}
return {
add: addHandler,
remove: removeHandler,