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Merge pull request #1526 from jviereck/fix_keyboard

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Fix keyboardbindings
This commit is contained in:
Yury Delendik 2012-04-20 05:43:06 -07:00
commit 6aacffaeb6
1 changed files with 50 additions and 30 deletions
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42
web/viewer.js
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@ -1514,18 +1514,15 @@ window.addEventListener('pagechange', function pagechange(evt) {
}, true);
window.addEventListener('keydown', function keydown(evt) {
if (evt.ctrlKey || evt.altKey || evt.shiftKey || evt.metaKey)
return;
var curElement = document.activeElement;
if (curElement && curElement.tagName == 'INPUT')
return;
var controlsElement = document.getElementById('controls');
while (curElement) {
if (curElement === controlsElement)
return; // ignoring if the 'controls' element is focused
curElement = curElement.parentNode;
}
var handled = false;
var cmd = (evt.ctrlKey ? 1 : 0) |
(evt.altKey ? 2 : 0) |
(evt.shiftKey ? 4 : 0) |
(evt.metaKey ? 8 : 0);
// First, handle the key bindings that are independent whether an input
// control is selected or not.
if (cmd == 1 || cmd == 8) { // either CTRL or META key.
switch (evt.keyCode) {
case 61: // FF/Mac '='
case 107: // FF '+' and '='
@ -1542,6 +1539,28 @@ window.addEventListener('keydown', function keydown(evt) {
PDFView.parseScale(kDefaultScale, true);
handled = true;
break;
}
}
if (handled) {
evt.preventDefault();
return;
}
// Some shortcuts should not get handled if a control/input element
// is selected.
var curElement = document.activeElement;
if (curElement && curElement.tagName == 'INPUT')
return;
var controlsElement = document.getElementById('controls');
while (curElement) {
if (curElement === controlsElement)
return; // ignoring if the 'controls' element is focused
curElement = curElement.parentNode;
}
if (cmd == 0) { // no control key pressed at all.
switch (evt.keyCode) {
case 37: // left arrow
case 75: // 'k'
case 80: // 'p'
@ -1555,6 +1574,7 @@ window.addEventListener('keydown', function keydown(evt) {
handled = true;
break;
}
}
if (handled) {
evt.preventDefault();