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Bug 587503 - Improve reordering tabs in groups [r=ian, a=blocking2.0-fail+]

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This commit is contained in:
Michael Yoshitaka Erlewine 2011-01-12 16:48:42 -05:00
parent 533c249257
commit 66d79f5a82
7 changed files with 431 additions and 96 deletions
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5
browser/base/content/tabview/drag.js
View File

@ -296,7 +296,10 @@ Drag.prototype = {
if (this.parent && this.parent.expanded)
this.parent.arrange();
if (this.item && !this.item.parent) {
if (this.item.parent)
this.item.parent.arrange();
if (!this.item.parent) {
this.item.setZ(drag.zIndex);
drag.zIndex++;

218
browser/base/content/tabview/groupitems.js
View File

@ -282,7 +282,7 @@ function GroupItem(listOfEls, options) {
// ___ Children
Array.prototype.forEach.call(listOfEls, function(el) {
self.add(el, null, options);
self.add(el, options);
});
// ___ Finish Up
@ -811,14 +811,14 @@ GroupItem.prototype = Utils.extend(new Item(), new Subscribable(), {
//
// a - The item to add. Can be an <Item>, a DOM element or an iQ object.
// The latter two must refer to the container of an <Item>.
// dropPos - An object with left and top properties referring to the
// location dropped at. Optional.
// options - An optional object with settings for this call. See below.
// options - An object with optional settings for this call.
//
// Possible options:
// dontArrange - Don't rearrange the children for the new item
// immediately - Don't animate
add: function GroupItem_add(a, dropPos, options) {
// Options:
//
// index - (int) if set, add this tab at this index
// immediately - (bool) if true, no animation will be used
// dontArrange - (bool) if true, will not trigger an arrange on the group
add: function GroupItem_add(a, options) {
try {
var item;
var $el;
@ -846,48 +846,8 @@ GroupItem.prototype = Utils.extend(new Item(), new Subscribable(), {
wasAlreadyInThisGroupItem = true;
}
// TODO: You should be allowed to drop in the white space at the bottom
// and have it go to the end (right now it can match the thumbnail above
// it and go there)
// Bug 586548
function findInsertionPoint(dropPos) {
if (self.shouldStack(self._children.length + 1))
return 0;
var best = {dist: Infinity, item: null};
var index = 0;
var box;
self._children.forEach(function(child) {
box = child.getBounds();
if (box.bottom < dropPos.top || box.top > dropPos.top)
return;
var dist = Math.sqrt(Math.pow((box.top+box.height/2)-dropPos.top,2)
+ Math.pow((box.left+box.width/2)-dropPos.left,2));
if (dist <= best.dist) {
best.item = child;
best.dist = dist;
best.index = index;
}
});
if (self._children.length) {
if (best.item) {
box = best.item.getBounds();
var insertLeft = dropPos.left <= box.left + box.width/2;
if (!insertLeft)
return best.index+1;
return best.index;
}
return self._children.length;
}
return 0;
}
// Insert the tab into the right position.
var index = dropPos ? findInsertionPoint(dropPos) : this._children.length;
var index = ("index" in options) ? options.index : this._children.length;
this._children.splice(index, 0, item);
item.setZ(this.getZ() + 1);
@ -1120,54 +1080,84 @@ GroupItem.prototype = Utils.extend(new Item(), new Subscribable(), {
// Lays out all of the children.
//
// Parameters:
// options - passed to <Items.arrange> or <_stackArrange>
// options - passed to <Items.arrange> or <_stackArrange>, except those below
//
// Options:
// addTab - (boolean) if true, we add one to the child count
// oldDropIndex - if set, we will only set any bounds if the dropIndex has
// changed
// dropPos - (<Point>) a position where a tab is currently positioned, above
// this group.
// animate - (boolean) if true, movement of children will be animated.
//
// Returns:
// dropIndex - an index value for where an item would be dropped, if
// options.dropPos is given.
arrange: function GroupItem_arrange(options) {
if (!options)
options = {};
let childrenToArrange = [];
this._children.forEach(function(child) {
if (child.isDragging)
options.addTab = true;
else
childrenToArrange.push(child);
});
if (GroupItems._arrangePaused) {
GroupItems.pushArrange(this, options);
return;
}
var dropIndex = false;
if (this.expanded) {
this.topChild = null;
var box = new Rect(this.expanded.bounds);
box.inset(8, 8);
Items.arrange(this._children, box, Utils.extend({}, options, {z: 99999}));
let result = Items.arrange(childrenToArrange, box, Utils.extend({}, options, {z: 99999}));
dropIndex = result.dropIndex;
} else {
var count = childrenToArrange.length;
var bb = this.getContentBounds();
if (!this.shouldStack()) {
if (!options)
options = {};
this._children.forEach(function(child) {
if (!this.shouldStack(count + (options.addTab ? 1 : 0))) {
childrenToArrange.forEach(function(child) {
child.removeClass("stacked")
});
this.topChild = null;
if (!this._children.length)
if (!childrenToArrange.length)
return;
var arrangeOptions = Utils.copy(options);
Utils.extend(arrangeOptions, {
var arrangeOptions = Utils.extend({}, options, {
columns: this._columns
});
// Items.arrange will rearrange the children, but also return an array
// of the Rect's used.
var rects = Items.arrange(this._children, bb, arrangeOptions);
let result = Items.arrange(childrenToArrange, bb, arrangeOptions);
dropIndex = result.dropIndex;
if ("oldDropIndex" in options && options.oldDropIndex === dropIndex)
return dropIndex;
var rects = result.rects;
// first, find the right of the rightmost tab! luckily, they're in order.
var rightMostRight = 0;
if (UI.rtl) {
rightMostRight = rects[0].right;
} else {
for each (var rect in rects) {
if (rect.right > rightMostRight)
rightMostRight = rect.right;
else
break;
let index = 0;
let self = this;
childrenToArrange.forEach(function GroupItem_arrange_children_each(child, i) {
// If dropIndex spacing is active and this is a child after index,
// bump it up one so we actually use the correct rect
// (and skip one for the dropPos)
if (self._dropSpaceActive && index === dropIndex)
index++;
if (!child.locked.bounds) {
child.setBounds(rects[index], !options.animate);
child.setRotation(0);
if (options.z)
child.setZ(options.z);
}
}
index++;
});
this._isStacked = false;
} else
@ -1176,6 +1166,8 @@ GroupItem.prototype = Utils.extend(new Item(), new Subscribable(), {
if (this._isStacked && !this.expanded) this.showExpandControl();
else this.hideExpandControl();
return dropIndex;
},
// ----------
@ -1416,15 +1408,87 @@ GroupItem.prototype = Utils.extend(new Item(), new Subscribable(), {
// Helper routine for the constructor; adds various event handlers to the container.
_addHandlers: function GroupItem__addHandlers(container) {
var self = this;
var dropIndex = false;
var dropSpaceTimer = null;
this.dropOptions.over = function() {
// When the _dropSpaceActive flag is turned on on a group, and a tab is
// dragged on top, a space will open up.
this._dropSpaceActive = false;
this.dropOptions.over = function GroupItem_dropOptions_over(event) {
iQ(this.container).addClass("acceptsDrop");
};
this.dropOptions.drop = function(event) {
iQ(this.container).removeClass("acceptsDrop");
this.add(drag.info.$el, {left:event.pageX, top:event.pageY});
GroupItems.setActiveGroupItem(this);
this.dropOptions.move = function GroupItem_dropOptions_move(event) {
let oldDropIndex = dropIndex;
let dropPos = drag.info.item.getBounds().center();
let options = {dropPos: dropPos,
addTab: self._dropSpaceActive && drag.info.item.parent != self,
oldDropIndex: oldDropIndex};
newDropIndex = self.arrange(options);
// If this is a new drop index, start a timer!
if (newDropIndex !== oldDropIndex) {
dropIndex = newDropIndex;
if (this._dropSpaceActive)
return;
if (dropSpaceTimer) {
clearTimeout(dropSpaceTimer);
dropSpaceTimer = null;
}
dropSpaceTimer = setTimeout(function GroupItem_arrange_evaluateDropSpace() {
// Note that dropIndex's scope is GroupItem__addHandlers, but
// newDropIndex's scope is GroupItem_dropOptions_move. Thus,
// dropIndex may change with other movement events before we come
// back and check this. If it's still the same dropIndex, activate
// drop space display!
if (dropIndex === newDropIndex) {
self._dropSpaceActive = true;
dropIndex = self.arrange({dropPos: dropPos,
addTab: drag.info.item.parent != self,
animate: true});
}
dropSpaceTimer = null;
}, 250);
}
};
this.dropOptions.drop = function GroupItem_dropOptions_drop(event) {
iQ(this.container).removeClass("acceptsDrop");
let options = {};
if (this._dropSpaceActive)
this._dropSpaceActive = false;
if (dropSpaceTimer) {
clearTimeout(dropSpaceTimer);
dropSpaceTimer = null;
// If we drop this item before the timed rearrange was executed,
// we won't have an accurate dropIndex value. Get that now.
let dropPos = drag.info.item.getBounds().center();
dropIndex = self.arrange({dropPos: dropPos,
addTab: drag.info.item.parent != self,
animate: true});
}
if (dropIndex !== false)
options = {index: dropIndex}
this.add(drag.info.$el, options);
GroupItems.setActiveGroupItem(this);
dropIndex = false;
};
this.dropOptions.out = function GroupItem_dropOptions_out(event) {
dropIndex = false;
if (this._dropSpaceActive)
this._dropSpaceActive = false;
if (dropSpaceTimer) {
clearTimeout(dropSpaceTimer);
dropSpaceTimer = null;
}
self.arrange();
var groupItem = drag.info.item.parent;
if (groupItem)
groupItem.remove(drag.info.$el, {dontClose: true});
iQ(this.container).removeClass("acceptsDrop");
}
if (!this.locked.bounds)
this.draggable();
@ -1883,7 +1947,7 @@ let GroupItems = {
// tab in question): make a new group
if (activeGroupItem) {
activeGroupItem.add(tabItem, null, options);
activeGroupItem.add(tabItem, options);
return;
}

54
browser/base/content/tabview/items.js
View File

@ -179,6 +179,9 @@ Item.prototype = {
start: function(e, ui) {
if (this.isAGroupItem)
GroupItems.setActiveGroupItem(this);
// if we start dragging a tab within a group, start with dropSpace on.
else if (this.parent != null)
this.parent._dropSpaceActive = true;
drag.info = new Drag(this, e);
},
drag: function(e) {
@ -200,7 +203,6 @@ Item.prototype = {
var groupItem = drag.info.item.parent;
if (groupItem)
groupItem.remove(drag.info.$el, {dontClose: true});
iQ(this.container).removeClass("acceptsDrop");
},
drop: function(event) {
@ -617,7 +619,6 @@ Item.prototype = {
var box = self.getBounds();
box.left = startPos.x + (mouse.x - startMouse.x);
box.top = startPos.y + (mouse.y - startMouse.y);
self.setBounds(box, true);
if (typeof self.dragOptions.drag == "function")
@ -663,6 +664,11 @@ Item.prototype = {
dropOptions.over.apply(dropTarget, [e]);
}
}
if (dropTarget) {
dropOptions = dropTarget.dropOptions;
if (dropOptions && typeof dropOptions.move == "function")
dropOptions.move.apply(dropTarget, [e]);
}
}
e.preventDefault();
@ -919,10 +925,16 @@ let Items = {
// default: the actual item count
// padding - pixels between each item
// columns - (int) a preset number of columns to use
// dropPos - a <Point> which should have a one-tab space left open, used
// when a tab is dragged over.
//
// Returns:
// an object with the width value of the child items and the number of columns,
// if the return option is set to 'widthAndColumns'; otherwise the list of <Rect>s
// By default, an object with two properties: `rects`, the list of <Rect>s,
// and `dropIndex`, the index which a dragged tab should have if dropped
// (null if no `dropPos` was specified);
// If the `return` option is set to 'widthAndColumns', an object with the
// width value of the child items (`childWidth`) and the number of columns
// (`columns`) is returned.
arrange: function Items_arrange(items, bounds, options) {
if (typeof options == 'undefined')
options = {};
@ -936,8 +948,12 @@ let Items = {
var tabAspect = TabItems.tabHeight / TabItems.tabWidth;
var count = options.count || (items ? items.length : 0);
if (!count)
return rects;
if (options.addTab)
count++;
if (!count) {
let dropIndex = (Utils.isPoint(options.dropPos)) ? 0 : null;
return {rects: rects, dropIndex: dropIndex};
}
var columns = options.columns || 1;
// We'll assume for the time being that all the items have the same styling
@ -981,17 +997,23 @@ let Items = {
var column = 0;
var dropIndex = false;
var dropRect = false;
if (Utils.isPoint(options.dropPos))
dropRect = new Rect(options.dropPos.x, options.dropPos.y, 1, 1);
for (let a = 0; a < count; a++) {
rects.push(new Rect(box));
if (items && a < items.length) {
let item = items[a];
if (!item.locked.bounds) {
item.setBounds(box, immediately);
item.setRotation(0);
if (options.z)
item.setZ(options.z);
}
// If we had a dropPos, see if this is where we should place it
if (dropRect) {
let activeBox = new Rect(box);
activeBox.inset(-itemMargin - 1, -itemMargin - 1);
// if the designated position (dropRect) is within the active box,
// this is where, if we drop the tab being dragged, it should land!
if (activeBox.contains(dropRect))
dropIndex = a;
}
// record the box.
rects.push(new Rect(box));
box.left += (UI.rtl ? -1 : 1) * (box.width + padding);
column++;
@ -1002,7 +1024,7 @@ let Items = {
}
}
return rects;
return {rects: rects, dropIndex: dropIndex};
},
// ----------

2
browser/base/content/tabview/tabitems.js
View File

@ -351,7 +351,7 @@ TabItem.prototype = Utils.extend(new Item(), new Subscribable(), {
if (tabData.groupID) {
var groupItem = GroupItems.groupItem(tabData.groupID);
if (groupItem) {
groupItem.add(this, null, {immediately: true});
groupItem.add(this, {immediately: true});
// if it matches the selected tab or no active tab and the browser
// tab is hidden, the active group item would be set.

2
browser/base/content/tabview/ui.js
View File

@ -295,7 +295,7 @@ let UI = {
items.forEach(function(item) {
if (item.parent)
item.parent.remove(item);
groupItem.add(item, null, {immediately: true});
groupItem.add(item, {immediately: true});
});
if (firstTime) {

1
browser/base/content/test/tabview/Makefile.in
View File

@ -51,6 +51,7 @@ _BROWSER_FILES = \
browser_tabview_bug587043.js \
browser_tabview_bug587231.js \
browser_tabview_bug587351.js \
browser_tabview_bug587503.js \
browser_tabview_bug587990.js \
browser_tabview_bug589324.js \
browser_tabview_bug590606.js \

245
browser/base/content/test/tabview/browser_tabview_bug587503.js Normal file
View File

@ -0,0 +1,245 @@
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is bug 587503 test.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michael Yoshitaka Erlewine <mitcho@mitcho.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
function test() {
waitForExplicitFinish();
window.addEventListener("tabviewshown", onTabViewWindowLoaded, false);
if (TabView.isVisible())
onTabViewWindowLoaded();
else
TabView.show();
}
function onTabViewWindowLoaded() {
window.removeEventListener("tabviewshown", onTabViewWindowLoaded, false);
ok(TabView.isVisible(), "Tab View is visible");
let contentWindow = document.getElementById("tab-view").contentWindow;
let [originalTab] = gBrowser.visibleTabs;
let currentGroup = contentWindow.GroupItems.getActiveGroupItem();
// Create a group and make it active
let box = new contentWindow.Rect(100, 100, 370, 370);
let group = new contentWindow.GroupItem([], { bounds: box });
ok(group.isEmpty(), "This group is empty");
contentWindow.GroupItems.setActiveGroupItem(group);
// Create a bunch of tabs in the group
let tabs = [];
tabs.push(gBrowser.loadOneTab("about:blank#0", {inBackground: true}));
tabs.push(gBrowser.loadOneTab("about:blank#1", {inBackground: true}));
tabs.push(gBrowser.loadOneTab("about:blank#2", {inBackground: true}));
tabs.push(gBrowser.loadOneTab("about:blank#3", {inBackground: true}));
tabs.push(gBrowser.loadOneTab("about:blank#4", {inBackground: true}));
tabs.push(gBrowser.loadOneTab("about:blank#5", {inBackground: true}));
tabs.push(gBrowser.loadOneTab("about:blank#6", {inBackground: true}));
ok(!group.shouldStack(group._children.length), "Group should not stack.");
// PREPARE FINISH:
group.addSubscriber(group, "close", function() {
group.removeSubscriber(group, "close");
ok(group.isEmpty(), "The group is empty again");
contentWindow.GroupItems.setActiveGroupItem(currentGroup);
isnot(contentWindow.GroupItems.getActiveGroupItem(), null, "There is an active group");
is(gBrowser.tabs.length, 1, "There is only one tab left");
is(gBrowser.visibleTabs.length, 1, "There is also only one visible tab");
let onTabViewHidden = function() {
window.removeEventListener("tabviewhidden", onTabViewHidden, false);
finish();
};
window.addEventListener("tabviewhidden", onTabViewHidden, false);
gBrowser.selectedTab = originalTab;
TabView.hide();
});
// STAGE 1: move the last tab to the third position
let currentTarget = tabs[6]._tabViewTabItem;
let currentPos = currentTarget.getBounds().center();
let targetPos = tabs[2]._tabViewTabItem.getBounds().center();
let vector = new contentWindow.Point(targetPos.x - currentPos.x,
targetPos.y - currentPos.y);
checkDropIndexAndDropSpace(currentTarget, group, vector.x, vector.y, contentWindow,
function(index, dropSpaceActiveValues) {
// Now: 0, 1, 6, 2, 3, 4, 5
is(index, 2, "Tab 6 is now in the third position");
is(dropSpaceActiveValues[0], true, "dropSpace was always showing");
// STAGE 2: move the second tab to the end of the list
let currentTarget = tabs[1]._tabViewTabItem;
let currentPos = currentTarget.getBounds().center();
// pick a point in that empty bottom part of the group
let groupBounds = group.getBounds();
let bottomPos = new contentWindow.Point(
(groupBounds.left + groupBounds.right) / 2,
groupBounds.bottom - 15);
let vector = new contentWindow.Point(bottomPos.x - currentPos.x,
bottomPos.y - currentPos.y);
checkDropIndexAndDropSpace(currentTarget, group, vector.x, vector.y, contentWindow,
function(index, dropSpaceActiveValues) {
// Now: 0, 6, 2, 3, 4, 5, 1
is(index, 6, "Tab 1 is now at the end of the group");
is(dropSpaceActiveValues[0], true, "dropSpace was always showing");
// STAGE 3: move the fifth tab outside the group
// Note: there should be room below the active group...
let currentTarget = tabs[4]._tabViewTabItem;
let currentPos = currentTarget.getBounds().center();
// Pick a point below the group.
let belowPos = new contentWindow.Point(
(groupBounds.left + groupBounds.right) / 2,
groupBounds.bottom + 300);
let vector = new contentWindow.Point(belowPos.x - currentPos.x,
belowPos.y - currentPos.y);
checkDropIndexAndDropSpace(currentTarget, group, vector.x, vector.y, contentWindow,
function(index, dropSpaceActiveValues) {
// Now: 0, 6, 2, 3, 5, 1
is(index, -1, "Tab 5 is no longer in the group");
contentWindow.Utils.log('dropSpaceActiveValues',dropSpaceActiveValues);
is(dropSpaceActiveValues[0], true, "The group began by showing a dropSpace");
is(dropSpaceActiveValues[dropSpaceActiveValues.length - 1], false, "In the end, the group was not showing a dropSpace");
// We wrap this in a setTimeout with 1000ms delay in order to wait for the
// tab to resize, as it does after we drop it in stage 3 outside of the group.
setTimeout(function() {
// STAGE 4: move the fifth tab back into the group, on the second row.
let currentTarget = tabs[4]._tabViewTabItem;
let currentPos = currentTarget.getBounds().center();
let targetPos = tabs[5]._tabViewTabItem.getBounds().center();
// contentWindow.Utils.log(targetPos, currentPos);
vector = new contentWindow.Point(targetPos.x - currentPos.x,
targetPos.y - currentPos.y);
// Call with time = 4000
checkDropIndexAndDropSpace(currentTarget, group, vector.x, vector.y, contentWindow,
function(index, dropSpaceActiveValues) {
// Now: 0, 6, 2, 3, 4, 5, 1
is(index, 4, "Tab 5 is back and again the fifth tab.");
contentWindow.Utils.log('dropSpaceActiveValues',dropSpaceActiveValues);
is(dropSpaceActiveValues[0], false, "The group began by not showing a dropSpace");
is(dropSpaceActiveValues[dropSpaceActiveValues.length - 1], true, "In the end, the group was showing a dropSpace");
// Get rid of the group and its children
// The group close will trigger a finish().
group.closeAll();
group.closeHidden();
}, 6000, false);
},1000);
});
});
});
}
function simulateSlowDragDrop(srcElement, offsetX, offsetY, contentWindow, time) {
// enter drag mode
let dataTransfer;
// contentWindow.Utils.log('offset', offsetX, offsetY);
let bounds = srcElement.getBoundingClientRect();
// contentWindow.Utils.log('original center', bounds.left + bounds.width / 2, bounds.top + bounds.height / 2);
EventUtils.synthesizeMouse(
srcElement, 2, 2, { type: "mousedown" }, contentWindow);
let event = contentWindow.document.createEvent("DragEvents");
event.initDragEvent(
"dragenter", true, true, contentWindow, 0, 0, 0, 0, 0,
false, false, false, false, 1, null, dataTransfer);
srcElement.dispatchEvent(event);
let steps = 20;
// drag over
let moveIncremental = function moveIncremental(i, steps) {
// calculate how much to move
let offsetXDiff = Math.round(i * offsetX / steps) - Math.round((i - 1) * offsetX / steps);
let offsetYDiff = Math.round(i * offsetY / steps) - Math.round((i - 1) * offsetY / steps);
// contentWindow.Utils.log('step', offsetXDiff, offsetYDiff);
// simulate mousemove
EventUtils.synthesizeMouse(
srcElement, offsetXDiff + 2, offsetYDiff + 2,
{ type: "mousemove" }, contentWindow);
// simulate dragover
let event = contentWindow.document.createEvent("DragEvents");
event.initDragEvent(
"dragover", true, true, contentWindow, 0, 0, 0, 0, 0,
false, false, false, false, 0, null, dataTransfer);
srcElement.dispatchEvent(event);
let bounds = srcElement.getBoundingClientRect();
// contentWindow.Utils.log(i, 'center', bounds.left + bounds.width / 2, bounds.top + bounds.height / 2);
};
for (let i = 1; i <= steps; i++)
setTimeout(moveIncremental, i / (steps + 1) * time, i, steps);
// drop
let finalDrop = function finalDrop() {
EventUtils.synthesizeMouseAtCenter(srcElement, { type: "mouseup" }, contentWindow);
event = contentWindow.document.createEvent("DragEvents");
event.initDragEvent(
"drop", true, true, contentWindow, 0, 0, 0, 0, 0,
false, false, false, false, 0, null, dataTransfer);
srcElement.dispatchEvent(event);
contentWindow.iQ(srcElement).css({border: 'green 1px solid'});
}
setTimeout(finalDrop, time);
}
function checkDropIndexAndDropSpace(item, group, offsetX, offsetY, contentWindow, callback, time) {
contentWindow.UI.setActiveTab(item);
let dropSpaceActiveValues = [];
let recordDropSpaceValue = function() {
dropSpaceActiveValues.push(group._dropSpaceActive);
};
// contentWindow.iQ(item.container).css({border: 'red 1px solid'});
let onDrop = function() {
item.container.removeEventListener('dragover', recordDropSpaceValue, false);
item.container.removeEventListener('drop', onDrop, false);
let index = group._children.indexOf(item);
callback(index, dropSpaceActiveValues);
};
item.container.addEventListener('dragover', recordDropSpaceValue, false);
item.container.addEventListener('drop', onDrop, false);
simulateSlowDragDrop(item.container, offsetX, offsetY, contentWindow, time || 1000);
}