forked from mirrors/gecko-dev
87ca855ece
`synthesizePlainDragAndDrop()` synthesizes drag events with `DataTransfer` object which is set to `DragEvent.dataTransfer` of `dragstart` after starting drag session explicitly. However, this causes `EventStateManager::DoDefaltDragStart()` does not initialize `nsIDragService` instance. Therefore, synthesized drag events cannot work with editor because `DragEvent::GetMozSourceNode()` returns `nullptr` due to `nsIDragSession::GetSourceNode()` returning `nullptr`. On the other hand, synthesized drag events cannot use `nsIDragService::InvodeDragSession()` normally because of hitting an assertion. https://searchfox.org/mozilla-central/rev/690e903ef689a4eca335b96bd903580394864a1c/widget/nsBaseDragService.cpp#230-233 This patch does: - mark drag events caused by synthesized mouse events as "synthesized for tests" - make `synthesizePlainDragAndDrop()` stop using `nsIDragService.startDragSession()` - make `nsBaseDragService` initialize and start session even for synthesized `dragstart` event - make `synthesizePlainDragAndDrop()` stop synthesizing drag events with `DataTransfer` object since it's normal behavior and it'll be initialized with `nsIDragService::GetDataTransfer()` - make `nsBaseDragService` store `effectAllowed` for the session only when it's synthesized session because it's required at initializing synthesized default `dropEffect` value of `dragenter`, `dragover`, `dragexit` and `drop` events' `dataTransfer` - make all tests which use `nsIDragService.startDragSession()` use new API, `nsIDragService.startDragSessionForTests()` to initialize session's `effectAllowed` value - make `EventStateManager::PostHandleEvent()` set drag end point of the test session to `eDrop` event's screen point - make `synthesizePlainDragAndDrop()` set drag end point of the session if it does not synthesize `drop` event because following `endDragSession()` use it at dispatching `dragend` event on the source element Additionally, this adds `dumpFunc` new param to `synthesizePlainDragAndDrop()` because it's really useful to investigate the reason why requesting DnD isn't performed as expected. Differential Revision: https://phabricator.services.mozilla.com/D57425 --HG-- extra : moz-landing-system : lando
158 lines
3.9 KiB
JavaScript
158 lines
3.9 KiB
JavaScript
add_task(async function() {
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const url =
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"data:text/html,<html><head></head><body>" +
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'<a id="target" href="about:blank" title="This is tooltip text" ' +
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'style="display:block;height:20px;margin:10px;" ' +
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'onclick="return false;">here is an anchor element</a></body></html>';
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let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
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let browser = gBrowser.selectedBrowser;
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await new Promise(resolve => {
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SpecialPowers.pushPrefEnv({ set: [["ui.tooltipDelay", 0]] }, resolve);
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});
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// Send a mousemove at a known position to start the test.
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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-5,
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-5,
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{ type: "mousemove" },
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browser
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);
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// show tooltip by mousemove into target.
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let popupShownPromise = BrowserTestUtils.waitForEvent(document, "popupshown");
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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5,
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15,
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{ type: "mousemove" },
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browser
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);
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await popupShownPromise;
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// hide tooltip by mousemove to outside.
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let popupHiddenPromise = BrowserTestUtils.waitForEvent(
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document,
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"popuphidden"
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);
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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-5,
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15,
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{ type: "mousemove" },
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browser
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);
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await popupHiddenPromise;
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// mousemove into the target and start drag by emulation via nsIDragService.
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// Note that on some platforms, we cannot actually start the drag by
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// synthesized events. E.g., Windows waits an actual mousemove event after
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// dragstart.
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// Emulate a buggy mousemove event. widget might dispatch mousemove event
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// during drag.
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function tooltipNotExpected() {
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ok(false, "tooltip is shown during drag");
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}
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addEventListener("popupshown", tooltipNotExpected, true);
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let dragService = Cc["@mozilla.org/widget/dragservice;1"].getService(
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Ci.nsIDragService
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);
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dragService.startDragSessionForTests(
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Ci.nsIDragService.DRAGDROP_ACTION_MOVE |
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Ci.nsIDragService.DRAGDROP_ACTION_COPY |
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Ci.nsIDragService.DRAGDROP_ACTION_LINK
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);
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try {
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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5,
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15,
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{ type: "mousemove" },
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browser
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);
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// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
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await new Promise(resolve => setTimeout(resolve, 100));
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} finally {
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removeEventListener("popupshown", tooltipNotExpected, true);
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dragService.endDragSession(true);
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}
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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-5,
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-5,
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{ type: "mousemove" },
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browser
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);
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// If tooltip listener used a flag for managing D&D state, we would need
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// to test if the tooltip is shown after drag.
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// show tooltip by mousemove into target.
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popupShownPromise = BrowserTestUtils.waitForEvent(document, "popupshown");
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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5,
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15,
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{ type: "mousemove" },
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browser
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);
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await popupShownPromise;
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// hide tooltip by mousemove to outside.
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popupHiddenPromise = BrowserTestUtils.waitForEvent(document, "popuphidden");
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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-5,
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15,
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{ type: "mousemove" },
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browser
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);
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await popupHiddenPromise;
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// Show tooltip after mousedown
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popupShownPromise = BrowserTestUtils.waitForEvent(document, "popupshown");
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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5,
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15,
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{ type: "mousemove" },
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browser
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);
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await popupShownPromise;
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popupHiddenPromise = BrowserTestUtils.waitForEvent(document, "popuphidden");
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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5,
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15,
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{ type: "mousedown" },
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browser
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);
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await popupHiddenPromise;
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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5,
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15,
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{ type: "mouseup" },
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browser
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);
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await BrowserTestUtils.synthesizeMouse(
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"#target",
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-5,
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15,
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{ type: "mousemove" },
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browser
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);
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ok(true, "tooltips appear properly");
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gBrowser.removeCurrentTab();
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});
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