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fix editor getting stuck in drag mode

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This commit is contained in:
nightwing 2013-02-28 14:18:41 +04:00
commit 5f8fc32dbc
1 changed files with 49 additions and 40 deletions
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71
lib/ace/mouse/dragdrop.js vendored
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@ -36,7 +36,7 @@ var event = require("../lib/event");
var DragdropHandler = function(mouseHandler) {
var editor = mouseHandler.editor;
var dragSelectionMarker, x, y;
var timerId, range, isBackwards;
var timerId, range;
var dragCursor, counter = 0;
var mouseTarget = editor.container;
@ -44,18 +44,11 @@ var DragdropHandler = function(mouseHandler) {
if (editor.getReadOnly())
return;
var types = e.dataTransfer.types;
if (types && Array.prototype.indexOf.call(types, 'Files') !== -1)
if (types && Array.prototype.indexOf.call(types, "text/plain") === -1)
return;
if (!dragSelectionMarker)
addDragMarker();
counter++;
if (!dragSelectionMarker) {
range = editor.getSelectionRange();
isBackwards = editor.selection.isBackwards();
var style = editor.getSelectionStyle();
dragSelectionMarker = editor.session.addMarker(range, "ace_selection", style);
editor.clearSelection();
clearInterval(timerId);
timerId = setInterval(onDragInterval, 20);
}
return event.preventDefault(e);
});
@ -63,8 +56,10 @@ var DragdropHandler = function(mouseHandler) {
if (editor.getReadOnly())
return;
var types = e.dataTransfer.types;
if (types && Array.prototype.indexOf.call(types, 'Files') !== -1)
if (types && Array.prototype.indexOf.call(types, "text/plain") === -1)
return;
if (onMouseMoveTimer !== null)
onMouseMoveTimer = null;
x = e.clientX;
y = e.clientY;
return event.preventDefault(e);
@ -77,36 +72,50 @@ var DragdropHandler = function(mouseHandler) {
};
event.addListener(mouseTarget, "dragleave", function(e) {
if (editor.getReadOnly())
return;
var types = e.dataTransfer.types;
if (types && Array.prototype.indexOf.call(types, 'Files') !== -1)
return;
counter--;
if (counter > 0)
return;
clearInterval(timerId);
editor.session.removeMarker(dragSelectionMarker);
dragSelectionMarker = null;
editor.selection.setSelectionRange(range, isBackwards);
return event.preventDefault(e);
if (counter <= 0 && dragSelectionMarker) {
clearDragMarker();
return event.preventDefault(e);
}
});
event.addListener(mouseTarget, "drop", function(e) {
if (editor.getReadOnly())
if (!dragSelectionMarker)
return;
counter = 0;
clearInterval(timerId);
editor.session.removeMarker(dragSelectionMarker);
dragSelectionMarker = null;
range.end = editor.session.insert(dragCursor, e.dataTransfer.getData('Text'));
range.start = dragCursor;
clearDragMarker();
editor.focus();
editor.selection.setSelectionRange(range);
return event.preventDefault(e);
});
function addDragMarker() {
range = editor.selection.toOrientedRange();
dragSelectionMarker = editor.session.addMarker(range, "ace_selection", editor.getSelectionStyle());
editor.clearSelection();
clearInterval(timerId);
timerId = setInterval(onDragInterval, 20);
counter = 0;
event.addListener(document, "mousemove", onMouseMove);
}
function clearDragMarker() {
clearInterval(timerId);
editor.session.removeMarker(dragSelectionMarker);
dragSelectionMarker = null;
editor.selection.fromOrientedRange(range);
counter = 0;
event.removeListener(document, "mousemove", onMouseMove);
}
// sometimes other code on the page can stop dragleave event leaving editor stuck in the drag state
var onMouseMoveTimer = null;
function onMouseMove() {
if (onMouseMoveTimer == null) {
onMouseMoveTimer = setTimeout(function() {
if (onMouseMoveTimer != null && dragSelectionMarker)
clearDragMarker();
}, 20);
}
}
};
exports.DragdropHandler = DragdropHandler;