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browser(firefox): send dragend after drop and survive navigations (#4506)

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Joel Einbinder 2020-11-25 03:47:34 -08:00 committed by GitHub
parent c6d5bc3081
commit d06afadb8b
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 31 additions and 28 deletions
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4
browser_patches/firefox/BUILD_NUMBER
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@ -1,2 +1,2 @@
1214
Changed: lushnikov@chromium.org Mon 23 Nov 2020 04:14:36 PM PST
1215
Changed: joel.einbinder@gmail.com Wed 25 Nov 2020 03:31:22 AM PST

55
browser_patches/firefox/juggler/content/PageAgent.js
View File

@ -125,7 +125,7 @@ class PageAgent {
this._docShell = docShell;
this._initialDPPX = docShell.contentViewer.overrideDPPX;
this._customScrollbars = null;
this._dataTransfer = null;
this._dragging = false;
// Dispatch frameAttached events for all initial frames
for (const frame of this._frameTree.frames()) {
@ -663,7 +663,7 @@ class PageAgent {
async _dispatchKeyEvent({type, keyCode, code, key, repeat, location, text}) {
// key events don't fire if we are dragging.
if (this._dataTransfer) {
if (this._dragging) {
if (type === 'keydown' && key === 'Escape')
this._cancelDragIfNeeded();
return;
@ -817,7 +817,7 @@ class PageAgent {
modifiers & 8 /* metaKey */,
0 /* button */, // firefox always has the button as 0 on drops, regardless of which was pressed
null /* relatedTarget */,
this._dataTransfer
dragService.getCurrentSession().dataTransfer.mozCloneForEvent(type)
);
window.windowUtils.dispatchDOMEventViaPresShellForTesting(element, event);
@ -826,39 +826,25 @@ class PageAgent {
}
_cancelDragIfNeeded() {
this._dataTransfer = null;
this._dragging = false;
const sess = dragService.getCurrentSession();
if (sess)
dragService.endDragSession(false);
dragService.endDragSession(true);
}
async _dispatchMouseEvent({type, x, y, button, clickCount, modifiers, buttons}) {
this._startDragSessionIfNeeded();
const trapDrag = subject => {
this._dataTransfer = subject.mozCloneForEvent('drop');
this._dragging = true;
}
const frame = this._frameTree.mainFrame();
// Don't send mouse events if there is an active drag
if (!this._dragging) {
const frame = this._frameTree.mainFrame();
obs.addObserver(trapDrag, 'on-datatransfer-available');
frame.domWindow().windowUtils.sendMouseEvent(
type,
x,
y,
button,
clickCount,
modifiers,
false /*aIgnoreRootScrollFrame*/,
undefined /*pressure*/,
undefined /*inputSource*/,
undefined /*isDOMEventSynthesized*/,
undefined /*isWidgetEventSynthesized*/,
buttons);
obs.removeObserver(trapDrag, 'on-datatransfer-available');
if (type === 'mousedown' && button === 2) {
obs.addObserver(trapDrag, 'on-datatransfer-available');
frame.domWindow().windowUtils.sendMouseEvent(
'contextmenu',
type,
x,
y,
button,
@ -870,10 +856,27 @@ class PageAgent {
undefined /*isDOMEventSynthesized*/,
undefined /*isWidgetEventSynthesized*/,
buttons);
obs.removeObserver(trapDrag, 'on-datatransfer-available');
if (type === 'mousedown' && button === 2) {
frame.domWindow().windowUtils.sendMouseEvent(
'contextmenu',
x,
y,
button,
clickCount,
modifiers,
false /*aIgnoreRootScrollFrame*/,
undefined /*pressure*/,
undefined /*inputSource*/,
undefined /*isDOMEventSynthesized*/,
undefined /*isWidgetEventSynthesized*/,
buttons);
}
}
// update drag state
if (this._dataTransfer) {
if (this._dragging) {
if (type === 'mousemove')
this._simulateDragEvent('dragover', x, y, modifiers);
else if (type === 'mouseup') // firefox will do drops when any mouse button is released