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292 lines
10 KiB
JavaScript
292 lines
10 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* ChromeUtils.js is a set of mochitest utilities that are used to
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* synthesize events in the browser. These are only used by
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* mochitest-chrome and browser-chrome tests. Originally these functions were in
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* EventUtils.js, but when porting to specialPowers, we didn't want
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* to move unnecessary functions.
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*
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* ChromeUtils.js depends on EventUtils.js being loaded.
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*
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*/
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/**
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* Synthesize a query text content event.
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*
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* @param aOffset The character offset. 0 means the first character in the
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* selection root.
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* @param aLength The length of getting text. If the length is too long,
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* the extra length is ignored.
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* @param aWindow Optional (If null, current |window| will be used)
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* @return An nsIQueryContentEventResult object. If this failed,
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* the result might be null.
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*/
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function synthesizeQueryTextContent(aOffset, aLength, aWindow)
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{
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var utils = _getDOMWindowUtils(aWindow);
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if (!utils) {
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return nullptr;
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}
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return utils.sendQueryContentEvent(utils.QUERY_TEXT_CONTENT,
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aOffset, aLength, 0, 0);
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}
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/**
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* Synthesize a query caret rect event.
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*
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* @param aOffset The caret offset. 0 means left side of the first character
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* in the selection root.
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* @param aWindow Optional (If null, current |window| will be used)
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* @return An nsIQueryContentEventResult object. If this failed,
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* the result might be null.
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*/
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function synthesizeQueryCaretRect(aOffset, aWindow)
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{
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var utils = _getDOMWindowUtils(aWindow);
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if (!utils) {
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return nullptr;
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}
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return utils.sendQueryContentEvent(utils.QUERY_CARET_RECT,
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aOffset, 0, 0, 0);
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}
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/**
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* Synthesize a query text rect event.
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*
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* @param aOffset The character offset. 0 means the first character in the
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* selection root.
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* @param aLength The length of the text. If the length is too long,
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* the extra length is ignored.
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* @param aWindow Optional (If null, current |window| will be used)
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* @return An nsIQueryContentEventResult object. If this failed,
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* the result might be null.
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*/
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function synthesizeQueryTextRect(aOffset, aLength, aWindow)
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{
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var utils = _getDOMWindowUtils(aWindow);
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if (!utils) {
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return nullptr;
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}
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return utils.sendQueryContentEvent(utils.QUERY_TEXT_RECT,
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aOffset, aLength, 0, 0);
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}
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/**
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* Synthesize a query editor rect event.
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*
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* @param aWindow Optional (If null, current |window| will be used)
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* @return An nsIQueryContentEventResult object. If this failed,
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* the result might be null.
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*/
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function synthesizeQueryEditorRect(aWindow)
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{
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var utils = _getDOMWindowUtils(aWindow);
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if (!utils) {
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return nullptr;
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}
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return utils.sendQueryContentEvent(utils.QUERY_EDITOR_RECT, 0, 0, 0, 0);
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}
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/**
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* Synthesize a character at point event.
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*
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* @param aX, aY The offset in the client area of the DOM window.
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* @param aWindow Optional (If null, current |window| will be used)
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* @return An nsIQueryContentEventResult object. If this failed,
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* the result might be null.
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*/
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function synthesizeCharAtPoint(aX, aY, aWindow)
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{
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var utils = _getDOMWindowUtils(aWindow);
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if (!utils) {
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return nullptr;
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}
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return utils.sendQueryContentEvent(utils.QUERY_CHARACTER_AT_POINT,
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0, 0, aX, aY);
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}
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/**
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* Emulate a dragstart event.
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* element - element to fire the dragstart event on
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* expectedDragData - the data you expect the data transfer to contain afterwards
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* This data is in the format:
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* [ [ {type: value, data: value, test: function}, ... ], ... ]
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* can be null
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* aWindow - optional; defaults to the current window object.
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* x - optional; initial x coordinate
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* y - optional; initial y coordinate
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* Returns null if data matches.
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* Returns the event.dataTransfer if data does not match
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*
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* eqTest is an optional function if comparison can't be done with x == y;
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* function (actualData, expectedData) {return boolean}
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* @param actualData from dataTransfer
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* @param expectedData from expectedDragData
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* see bug 462172 for example of use
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*
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*/
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function synthesizeDragStart(element, expectedDragData, aWindow, x, y)
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{
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if (!aWindow)
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aWindow = window;
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x = x || 2;
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y = y || 2;
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const step = 9;
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var result = "trapDrag was not called";
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var trapDrag = function(event) {
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try {
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var dataTransfer = event.dataTransfer;
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result = null;
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if (!dataTransfer)
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throw "no dataTransfer";
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if (expectedDragData == null ||
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dataTransfer.mozItemCount != expectedDragData.length)
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throw dataTransfer;
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for (var i = 0; i < dataTransfer.mozItemCount; i++) {
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var dtTypes = dataTransfer.mozTypesAt(i);
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if (dtTypes.length != expectedDragData[i].length)
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throw dataTransfer;
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for (var j = 0; j < dtTypes.length; j++) {
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if (dtTypes[j] != expectedDragData[i][j].type)
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throw dataTransfer;
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var dtData = dataTransfer.mozGetDataAt(dtTypes[j],i);
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if (expectedDragData[i][j].eqTest) {
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if (!expectedDragData[i][j].eqTest(dtData, expectedDragData[i][j].data))
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throw dataTransfer;
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}
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else if (expectedDragData[i][j].data != dtData)
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throw dataTransfer;
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}
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}
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} catch(ex) {
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result = ex;
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}
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event.preventDefault();
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event.stopPropagation();
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}
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aWindow.addEventListener("dragstart", trapDrag, false);
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synthesizeMouse(element, x, y, { type: "mousedown" }, aWindow);
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x += step; y += step;
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synthesizeMouse(element, x, y, { type: "mousemove" }, aWindow);
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x += step; y += step;
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synthesizeMouse(element, x, y, { type: "mousemove" }, aWindow);
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aWindow.removeEventListener("dragstart", trapDrag, false);
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synthesizeMouse(element, x, y, { type: "mouseup" }, aWindow);
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return result;
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}
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/**
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* Emulate a drop by emulating a dragstart and firing events dragenter, dragover, and drop.
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* srcElement - the element to use to start the drag, usually the same as destElement
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* but if destElement isn't suitable to start a drag on pass a suitable
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* element for srcElement
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* destElement - the element to fire the dragover, dragleave and drop events
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* dragData - the data to supply for the data transfer
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* This data is in the format:
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* [ [ {type: value, data: value}, ...], ... ]
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* dropEffect - the drop effect to set during the dragstart event, or 'move' if null
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* aWindow - optional; defaults to the current window object.
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* eventUtils - optional; allows you to pass in a reference to EventUtils.js.
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* If the eventUtils parameter is not passed in, we assume EventUtils.js is
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* in the scope. Used by browser-chrome tests.
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*
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* Returns the drop effect that was desired.
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*/
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function synthesizeDrop(srcElement, destElement, dragData, dropEffect, aWindow, eventUtils)
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{
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if (!aWindow)
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aWindow = window;
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var synthesizeMouseAtCenter = (eventUtils || window).synthesizeMouseAtCenter;
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var synthesizeMouse = (eventUtils || window).synthesizeMouse;
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var gWindowUtils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor).
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getInterface(Components.interfaces.nsIDOMWindowUtils);
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var ds = Components.classes["@mozilla.org/widget/dragservice;1"].
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getService(Components.interfaces.nsIDragService);
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var dataTransfer;
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var trapDrag = function(event) {
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dataTransfer = event.dataTransfer;
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for (var i = 0; i < dragData.length; i++) {
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var item = dragData[i];
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for (var j = 0; j < item.length; j++) {
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dataTransfer.mozSetDataAt(item[j].type, item[j].data, i);
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}
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}
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dataTransfer.dropEffect = dropEffect || "move";
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event.preventDefault();
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event.stopPropagation();
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}
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ds.startDragSession();
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try {
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// need to use real mouse action
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aWindow.addEventListener("dragstart", trapDrag, true);
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synthesizeMouseAtCenter(srcElement, { type: "mousedown" }, aWindow);
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var rect = srcElement.getBoundingClientRect();
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var x = rect.width / 2;
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var y = rect.height / 2;
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synthesizeMouse(srcElement, x, y, { type: "mousemove" }, aWindow);
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synthesizeMouse(srcElement, x+10, y+10, { type: "mousemove" }, aWindow);
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aWindow.removeEventListener("dragstart", trapDrag, true);
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event = aWindow.document.createEvent("DragEvents");
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event.initDragEvent("dragenter", true, true, aWindow, 0, 0, 0, 0, 0, false, false, false, false, 0, null, dataTransfer);
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gWindowUtils.dispatchDOMEventViaPresShell(destElement, event, true);
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var event = aWindow.document.createEvent("DragEvents");
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event.initDragEvent("dragover", true, true, aWindow, 0, 0, 0, 0, 0, false, false, false, false, 0, null, dataTransfer);
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if (gWindowUtils.dispatchDOMEventViaPresShell(destElement, event, true)) {
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synthesizeMouseAtCenter(destElement, { type: "mouseup" }, aWindow);
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return "none";
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}
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if (dataTransfer.dropEffect != "none") {
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event = aWindow.document.createEvent("DragEvents");
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event.initDragEvent("drop", true, true, aWindow, 0, 0, 0, 0, 0, false, false, false, false, 0, null, dataTransfer);
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gWindowUtils.dispatchDOMEventViaPresShell(destElement, event, true);
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}
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synthesizeMouseAtCenter(destElement, { type: "mouseup" }, aWindow);
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return dataTransfer.dropEffect;
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} finally {
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ds.endDragSession(true);
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}
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};
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var PluginUtils =
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{
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withTestPlugin : function(callback)
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{
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if (typeof Components == "undefined")
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{
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todo(false, "Not a Mozilla-based browser");
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return false;
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}
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var ph = Components.classes["@mozilla.org/plugin/host;1"]
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.getService(Components.interfaces.nsIPluginHost);
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var tags = ph.getPluginTags();
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// Find the test plugin
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for (var i = 0; i < tags.length; i++)
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{
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if (tags[i].name == "Test Plug-in")
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{
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callback(tags[i]);
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return true;
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}
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}
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todo(false, "Need a test plugin on this platform");
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return false;
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}
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};
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