1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/testing/mochitest/tests/MochiKit-1.4.2/MochiKit/DragAndDrop.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,793 @@
1.4 +/***
1.5 +MochiKit.DragAndDrop 1.4.2
1.6 +
1.7 +See <http://mochikit.com/> for documentation, downloads, license, etc.
1.8 +
1.9 +Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
1.10 + Mochi-ized By Thomas Herve (_firstname_@nimail.org)
1.11 +
1.12 +***/
1.13 +
1.14 +MochiKit.Base._deps('DragAndDrop', ['Base', 'Iter', 'DOM', 'Signal', 'Visual', 'Position']);
1.15 +
1.16 +MochiKit.DragAndDrop.NAME = 'MochiKit.DragAndDrop';
1.17 +MochiKit.DragAndDrop.VERSION = '1.4.2';
1.18 +
1.19 +MochiKit.DragAndDrop.__repr__ = function () {
1.20 + return '[' + this.NAME + ' ' + this.VERSION + ']';
1.21 +};
1.22 +
1.23 +MochiKit.DragAndDrop.toString = function () {
1.24 + return this.__repr__();
1.25 +};
1.26 +
1.27 +MochiKit.DragAndDrop.EXPORT = [
1.28 + "Droppable",
1.29 + "Draggable"
1.30 +];
1.31 +
1.32 +MochiKit.DragAndDrop.EXPORT_OK = [
1.33 + "Droppables",
1.34 + "Draggables"
1.35 +];
1.36 +
1.37 +MochiKit.DragAndDrop.Droppables = {
1.38 + /***
1.39 +
1.40 + Manage all droppables. Shouldn't be used, use the Droppable object instead.
1.41 +
1.42 + ***/
1.43 + drops: [],
1.44 +
1.45 + remove: function (element) {
1.46 + this.drops = MochiKit.Base.filter(function (d) {
1.47 + return d.element != MochiKit.DOM.getElement(element);
1.48 + }, this.drops);
1.49 + },
1.50 +
1.51 + register: function (drop) {
1.52 + this.drops.push(drop);
1.53 + },
1.54 +
1.55 + unregister: function (drop) {
1.56 + this.drops = MochiKit.Base.filter(function (d) {
1.57 + return d != drop;
1.58 + }, this.drops);
1.59 + },
1.60 +
1.61 + prepare: function (element) {
1.62 + MochiKit.Base.map(function (drop) {
1.63 + if (drop.isAccepted(element)) {
1.64 + if (drop.options.activeclass) {
1.65 + MochiKit.DOM.addElementClass(drop.element,
1.66 + drop.options.activeclass);
1.67 + }
1.68 + drop.options.onactive(drop.element, element);
1.69 + }
1.70 + }, this.drops);
1.71 + },
1.72 +
1.73 + findDeepestChild: function (drops) {
1.74 + deepest = drops[0];
1.75 +
1.76 + for (i = 1; i < drops.length; ++i) {
1.77 + if (MochiKit.DOM.isChildNode(drops[i].element, deepest.element)) {
1.78 + deepest = drops[i];
1.79 + }
1.80 + }
1.81 + return deepest;
1.82 + },
1.83 +
1.84 + show: function (point, element) {
1.85 + if (!this.drops.length) {
1.86 + return;
1.87 + }
1.88 + var affected = [];
1.89 +
1.90 + if (this.last_active) {
1.91 + this.last_active.deactivate();
1.92 + }
1.93 + MochiKit.Iter.forEach(this.drops, function (drop) {
1.94 + if (drop.isAffected(point, element)) {
1.95 + affected.push(drop);
1.96 + }
1.97 + });
1.98 + if (affected.length > 0) {
1.99 + drop = this.findDeepestChild(affected);
1.100 + MochiKit.Position.within(drop.element, point.page.x, point.page.y);
1.101 + drop.options.onhover(element, drop.element,
1.102 + MochiKit.Position.overlap(drop.options.overlap, drop.element));
1.103 + drop.activate();
1.104 + }
1.105 + },
1.106 +
1.107 + fire: function (event, element) {
1.108 + if (!this.last_active) {
1.109 + return;
1.110 + }
1.111 + MochiKit.Position.prepare();
1.112 +
1.113 + if (this.last_active.isAffected(event.mouse(), element)) {
1.114 + this.last_active.options.ondrop(element,
1.115 + this.last_active.element, event);
1.116 + }
1.117 + },
1.118 +
1.119 + reset: function (element) {
1.120 + MochiKit.Base.map(function (drop) {
1.121 + if (drop.options.activeclass) {
1.122 + MochiKit.DOM.removeElementClass(drop.element,
1.123 + drop.options.activeclass);
1.124 + }
1.125 + drop.options.ondesactive(drop.element, element);
1.126 + }, this.drops);
1.127 + if (this.last_active) {
1.128 + this.last_active.deactivate();
1.129 + }
1.130 + }
1.131 +};
1.132 +
1.133 +/** @id MochiKit.DragAndDrop.Droppable */
1.134 +MochiKit.DragAndDrop.Droppable = function (element, options) {
1.135 + var cls = arguments.callee;
1.136 + if (!(this instanceof cls)) {
1.137 + return new cls(element, options);
1.138 + }
1.139 + this.__init__(element, options);
1.140 +};
1.141 +
1.142 +MochiKit.DragAndDrop.Droppable.prototype = {
1.143 + /***
1.144 +
1.145 + A droppable object. Simple use is to create giving an element:
1.146 +
1.147 + new MochiKit.DragAndDrop.Droppable('myelement');
1.148 +
1.149 + Generally you'll want to define the 'ondrop' function and maybe the
1.150 + 'accept' option to filter draggables.
1.151 +
1.152 + ***/
1.153 + __class__: MochiKit.DragAndDrop.Droppable,
1.154 +
1.155 + __init__: function (element, /* optional */options) {
1.156 + var d = MochiKit.DOM;
1.157 + var b = MochiKit.Base;
1.158 + this.element = d.getElement(element);
1.159 + this.options = b.update({
1.160 +
1.161 + /** @id MochiKit.DragAndDrop.greedy */
1.162 + greedy: true,
1.163 +
1.164 + /** @id MochiKit.DragAndDrop.hoverclass */
1.165 + hoverclass: null,
1.166 +
1.167 + /** @id MochiKit.DragAndDrop.activeclass */
1.168 + activeclass: null,
1.169 +
1.170 + /** @id MochiKit.DragAndDrop.hoverfunc */
1.171 + hoverfunc: b.noop,
1.172 +
1.173 + /** @id MochiKit.DragAndDrop.accept */
1.174 + accept: null,
1.175 +
1.176 + /** @id MochiKit.DragAndDrop.onactive */
1.177 + onactive: b.noop,
1.178 +
1.179 + /** @id MochiKit.DragAndDrop.ondesactive */
1.180 + ondesactive: b.noop,
1.181 +
1.182 + /** @id MochiKit.DragAndDrop.onhover */
1.183 + onhover: b.noop,
1.184 +
1.185 + /** @id MochiKit.DragAndDrop.ondrop */
1.186 + ondrop: b.noop,
1.187 +
1.188 + /** @id MochiKit.DragAndDrop.containment */
1.189 + containment: [],
1.190 + tree: false
1.191 + }, options);
1.192 +
1.193 + // cache containers
1.194 + this.options._containers = [];
1.195 + b.map(MochiKit.Base.bind(function (c) {
1.196 + this.options._containers.push(d.getElement(c));
1.197 + }, this), this.options.containment);
1.198 +
1.199 + MochiKit.Style.makePositioned(this.element); // fix IE
1.200 +
1.201 + MochiKit.DragAndDrop.Droppables.register(this);
1.202 + },
1.203 +
1.204 + /** @id MochiKit.DragAndDrop.isContained */
1.205 + isContained: function (element) {
1.206 + if (this.options._containers.length) {
1.207 + var containmentNode;
1.208 + if (this.options.tree) {
1.209 + containmentNode = element.treeNode;
1.210 + } else {
1.211 + containmentNode = element.parentNode;
1.212 + }
1.213 + return MochiKit.Iter.some(this.options._containers, function (c) {
1.214 + return containmentNode == c;
1.215 + });
1.216 + } else {
1.217 + return true;
1.218 + }
1.219 + },
1.220 +
1.221 + /** @id MochiKit.DragAndDrop.isAccepted */
1.222 + isAccepted: function (element) {
1.223 + return ((!this.options.accept) || MochiKit.Iter.some(
1.224 + this.options.accept, function (c) {
1.225 + return MochiKit.DOM.hasElementClass(element, c);
1.226 + }));
1.227 + },
1.228 +
1.229 + /** @id MochiKit.DragAndDrop.isAffected */
1.230 + isAffected: function (point, element) {
1.231 + return ((this.element != element) &&
1.232 + this.isContained(element) &&
1.233 + this.isAccepted(element) &&
1.234 + MochiKit.Position.within(this.element, point.page.x,
1.235 + point.page.y));
1.236 + },
1.237 +
1.238 + /** @id MochiKit.DragAndDrop.deactivate */
1.239 + deactivate: function () {
1.240 + /***
1.241 +
1.242 + A droppable is deactivate when a draggable has been over it and left.
1.243 +
1.244 + ***/
1.245 + if (this.options.hoverclass) {
1.246 + MochiKit.DOM.removeElementClass(this.element,
1.247 + this.options.hoverclass);
1.248 + }
1.249 + this.options.hoverfunc(this.element, false);
1.250 + MochiKit.DragAndDrop.Droppables.last_active = null;
1.251 + },
1.252 +
1.253 + /** @id MochiKit.DragAndDrop.activate */
1.254 + activate: function () {
1.255 + /***
1.256 +
1.257 + A droppable is active when a draggable is over it.
1.258 +
1.259 + ***/
1.260 + if (this.options.hoverclass) {
1.261 + MochiKit.DOM.addElementClass(this.element, this.options.hoverclass);
1.262 + }
1.263 + this.options.hoverfunc(this.element, true);
1.264 + MochiKit.DragAndDrop.Droppables.last_active = this;
1.265 + },
1.266 +
1.267 + /** @id MochiKit.DragAndDrop.destroy */
1.268 + destroy: function () {
1.269 + /***
1.270 +
1.271 + Delete this droppable.
1.272 +
1.273 + ***/
1.274 + MochiKit.DragAndDrop.Droppables.unregister(this);
1.275 + },
1.276 +
1.277 + /** @id MochiKit.DragAndDrop.repr */
1.278 + repr: function () {
1.279 + return '[' + this.__class__.NAME + ", options:" + MochiKit.Base.repr(this.options) + "]";
1.280 + }
1.281 +};
1.282 +
1.283 +MochiKit.DragAndDrop.Draggables = {
1.284 + /***
1.285 +
1.286 + Manage draggables elements. Not intended to direct use.
1.287 +
1.288 + ***/
1.289 + drags: [],
1.290 +
1.291 + register: function (draggable) {
1.292 + if (this.drags.length === 0) {
1.293 + var conn = MochiKit.Signal.connect;
1.294 + this.eventMouseUp = conn(document, 'onmouseup', this, this.endDrag);
1.295 + this.eventMouseMove = conn(document, 'onmousemove', this,
1.296 + this.updateDrag);
1.297 + this.eventKeypress = conn(document, 'onkeypress', this,
1.298 + this.keyPress);
1.299 + }
1.300 + this.drags.push(draggable);
1.301 + },
1.302 +
1.303 + unregister: function (draggable) {
1.304 + this.drags = MochiKit.Base.filter(function (d) {
1.305 + return d != draggable;
1.306 + }, this.drags);
1.307 + if (this.drags.length === 0) {
1.308 + var disc = MochiKit.Signal.disconnect;
1.309 + disc(this.eventMouseUp);
1.310 + disc(this.eventMouseMove);
1.311 + disc(this.eventKeypress);
1.312 + }
1.313 + },
1.314 +
1.315 + activate: function (draggable) {
1.316 + // allows keypress events if window is not currently focused
1.317 + // fails for Safari
1.318 + window.focus();
1.319 + this.activeDraggable = draggable;
1.320 + },
1.321 +
1.322 + deactivate: function () {
1.323 + this.activeDraggable = null;
1.324 + },
1.325 +
1.326 + updateDrag: function (event) {
1.327 + if (!this.activeDraggable) {
1.328 + return;
1.329 + }
1.330 + var pointer = event.mouse();
1.331 + // Mozilla-based browsers fire successive mousemove events with
1.332 + // the same coordinates, prevent needless redrawing (moz bug?)
1.333 + if (this._lastPointer && (MochiKit.Base.repr(this._lastPointer.page) ==
1.334 + MochiKit.Base.repr(pointer.page))) {
1.335 + return;
1.336 + }
1.337 + this._lastPointer = pointer;
1.338 + this.activeDraggable.updateDrag(event, pointer);
1.339 + },
1.340 +
1.341 + endDrag: function (event) {
1.342 + if (!this.activeDraggable) {
1.343 + return;
1.344 + }
1.345 + this._lastPointer = null;
1.346 + this.activeDraggable.endDrag(event);
1.347 + this.activeDraggable = null;
1.348 + },
1.349 +
1.350 + keyPress: function (event) {
1.351 + if (this.activeDraggable) {
1.352 + this.activeDraggable.keyPress(event);
1.353 + }
1.354 + },
1.355 +
1.356 + notify: function (eventName, draggable, event) {
1.357 + MochiKit.Signal.signal(this, eventName, draggable, event);
1.358 + }
1.359 +};
1.360 +
1.361 +/** @id MochiKit.DragAndDrop.Draggable */
1.362 +MochiKit.DragAndDrop.Draggable = function (element, options) {
1.363 + var cls = arguments.callee;
1.364 + if (!(this instanceof cls)) {
1.365 + return new cls(element, options);
1.366 + }
1.367 + this.__init__(element, options);
1.368 +};
1.369 +
1.370 +MochiKit.DragAndDrop.Draggable.prototype = {
1.371 + /***
1.372 +
1.373 + A draggable object. Simple instantiate :
1.374 +
1.375 + new MochiKit.DragAndDrop.Draggable('myelement');
1.376 +
1.377 + ***/
1.378 + __class__ : MochiKit.DragAndDrop.Draggable,
1.379 +
1.380 + __init__: function (element, /* optional */options) {
1.381 + var v = MochiKit.Visual;
1.382 + var b = MochiKit.Base;
1.383 + options = b.update({
1.384 +
1.385 + /** @id MochiKit.DragAndDrop.handle */
1.386 + handle: false,
1.387 +
1.388 + /** @id MochiKit.DragAndDrop.starteffect */
1.389 + starteffect: function (innerelement) {
1.390 + this._savedOpacity = MochiKit.Style.getStyle(innerelement, 'opacity') || 1.0;
1.391 + new v.Opacity(innerelement, {duration:0.2, from:this._savedOpacity, to:0.7});
1.392 + },
1.393 + /** @id MochiKit.DragAndDrop.reverteffect */
1.394 + reverteffect: function (innerelement, top_offset, left_offset) {
1.395 + var dur = Math.sqrt(Math.abs(top_offset^2) +
1.396 + Math.abs(left_offset^2))*0.02;
1.397 + return new v.Move(innerelement,
1.398 + {x: -left_offset, y: -top_offset, duration: dur});
1.399 + },
1.400 +
1.401 + /** @id MochiKit.DragAndDrop.endeffect */
1.402 + endeffect: function (innerelement) {
1.403 + new v.Opacity(innerelement, {duration:0.2, from:0.7, to:this._savedOpacity});
1.404 + },
1.405 +
1.406 + /** @id MochiKit.DragAndDrop.onchange */
1.407 + onchange: b.noop,
1.408 +
1.409 + /** @id MochiKit.DragAndDrop.zindex */
1.410 + zindex: 1000,
1.411 +
1.412 + /** @id MochiKit.DragAndDrop.revert */
1.413 + revert: false,
1.414 +
1.415 + /** @id MochiKit.DragAndDrop.scroll */
1.416 + scroll: false,
1.417 +
1.418 + /** @id MochiKit.DragAndDrop.scrollSensitivity */
1.419 + scrollSensitivity: 20,
1.420 +
1.421 + /** @id MochiKit.DragAndDrop.scrollSpeed */
1.422 + scrollSpeed: 15,
1.423 + // false, or xy or [x, y] or function (x, y){return [x, y];}
1.424 +
1.425 + /** @id MochiKit.DragAndDrop.snap */
1.426 + snap: false
1.427 + }, options);
1.428 +
1.429 + var d = MochiKit.DOM;
1.430 + this.element = d.getElement(element);
1.431 +
1.432 + if (options.handle && (typeof(options.handle) == 'string')) {
1.433 + this.handle = d.getFirstElementByTagAndClassName(null,
1.434 + options.handle, this.element);
1.435 + }
1.436 + if (!this.handle) {
1.437 + this.handle = d.getElement(options.handle);
1.438 + }
1.439 + if (!this.handle) {
1.440 + this.handle = this.element;
1.441 + }
1.442 +
1.443 + if (options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
1.444 + options.scroll = d.getElement(options.scroll);
1.445 + this._isScrollChild = MochiKit.DOM.isChildNode(this.element, options.scroll);
1.446 + }
1.447 +
1.448 + MochiKit.Style.makePositioned(this.element); // fix IE
1.449 +
1.450 + this.delta = this.currentDelta();
1.451 + this.options = options;
1.452 + this.dragging = false;
1.453 +
1.454 + this.eventMouseDown = MochiKit.Signal.connect(this.handle,
1.455 + 'onmousedown', this, this.initDrag);
1.456 + MochiKit.DragAndDrop.Draggables.register(this);
1.457 + },
1.458 +
1.459 + /** @id MochiKit.DragAndDrop.destroy */
1.460 + destroy: function () {
1.461 + MochiKit.Signal.disconnect(this.eventMouseDown);
1.462 + MochiKit.DragAndDrop.Draggables.unregister(this);
1.463 + },
1.464 +
1.465 + /** @id MochiKit.DragAndDrop.currentDelta */
1.466 + currentDelta: function () {
1.467 + var s = MochiKit.Style.getStyle;
1.468 + return [
1.469 + parseInt(s(this.element, 'left') || '0'),
1.470 + parseInt(s(this.element, 'top') || '0')];
1.471 + },
1.472 +
1.473 + /** @id MochiKit.DragAndDrop.initDrag */
1.474 + initDrag: function (event) {
1.475 + if (!event.mouse().button.left) {
1.476 + return;
1.477 + }
1.478 + // abort on form elements, fixes a Firefox issue
1.479 + var src = event.target();
1.480 + var tagName = (src.tagName || '').toUpperCase();
1.481 + if (tagName === 'INPUT' || tagName === 'SELECT' ||
1.482 + tagName === 'OPTION' || tagName === 'BUTTON' ||
1.483 + tagName === 'TEXTAREA') {
1.484 + return;
1.485 + }
1.486 +
1.487 + if (this._revert) {
1.488 + this._revert.cancel();
1.489 + this._revert = null;
1.490 + }
1.491 +
1.492 + var pointer = event.mouse();
1.493 + var pos = MochiKit.Position.cumulativeOffset(this.element);
1.494 + this.offset = [pointer.page.x - pos.x, pointer.page.y - pos.y];
1.495 +
1.496 + MochiKit.DragAndDrop.Draggables.activate(this);
1.497 + event.stop();
1.498 + },
1.499 +
1.500 + /** @id MochiKit.DragAndDrop.startDrag */
1.501 + startDrag: function (event) {
1.502 + this.dragging = true;
1.503 + if (this.options.selectclass) {
1.504 + MochiKit.DOM.addElementClass(this.element,
1.505 + this.options.selectclass);
1.506 + }
1.507 + if (this.options.zindex) {
1.508 + this.originalZ = parseInt(MochiKit.Style.getStyle(this.element,
1.509 + 'z-index') || '0');
1.510 + this.element.style.zIndex = this.options.zindex;
1.511 + }
1.512 +
1.513 + if (this.options.ghosting) {
1.514 + this._clone = this.element.cloneNode(true);
1.515 + this.ghostPosition = MochiKit.Position.absolutize(this.element);
1.516 + this.element.parentNode.insertBefore(this._clone, this.element);
1.517 + }
1.518 +
1.519 + if (this.options.scroll) {
1.520 + if (this.options.scroll == window) {
1.521 + var where = this._getWindowScroll(this.options.scroll);
1.522 + this.originalScrollLeft = where.left;
1.523 + this.originalScrollTop = where.top;
1.524 + } else {
1.525 + this.originalScrollLeft = this.options.scroll.scrollLeft;
1.526 + this.originalScrollTop = this.options.scroll.scrollTop;
1.527 + }
1.528 + }
1.529 +
1.530 + MochiKit.DragAndDrop.Droppables.prepare(this.element);
1.531 + MochiKit.DragAndDrop.Draggables.notify('start', this, event);
1.532 + if (this.options.starteffect) {
1.533 + this.options.starteffect(this.element);
1.534 + }
1.535 + },
1.536 +
1.537 + /** @id MochiKit.DragAndDrop.updateDrag */
1.538 + updateDrag: function (event, pointer) {
1.539 + if (!this.dragging) {
1.540 + this.startDrag(event);
1.541 + }
1.542 + MochiKit.Position.prepare();
1.543 + MochiKit.DragAndDrop.Droppables.show(pointer, this.element);
1.544 + MochiKit.DragAndDrop.Draggables.notify('drag', this, event);
1.545 + this.draw(pointer);
1.546 + this.options.onchange(this);
1.547 +
1.548 + if (this.options.scroll) {
1.549 + this.stopScrolling();
1.550 + var p, q;
1.551 + if (this.options.scroll == window) {
1.552 + var s = this._getWindowScroll(this.options.scroll);
1.553 + p = new MochiKit.Style.Coordinates(s.left, s.top);
1.554 + q = new MochiKit.Style.Coordinates(s.left + s.width,
1.555 + s.top + s.height);
1.556 + } else {
1.557 + p = MochiKit.Position.page(this.options.scroll);
1.558 + p.x += this.options.scroll.scrollLeft;
1.559 + p.y += this.options.scroll.scrollTop;
1.560 + p.x += (window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0);
1.561 + p.y += (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0);
1.562 + q = new MochiKit.Style.Coordinates(p.x + this.options.scroll.offsetWidth,
1.563 + p.y + this.options.scroll.offsetHeight);
1.564 + }
1.565 + var speed = [0, 0];
1.566 + if (pointer.page.x > (q.x - this.options.scrollSensitivity)) {
1.567 + speed[0] = pointer.page.x - (q.x - this.options.scrollSensitivity);
1.568 + } else if (pointer.page.x < (p.x + this.options.scrollSensitivity)) {
1.569 + speed[0] = pointer.page.x - (p.x + this.options.scrollSensitivity);
1.570 + }
1.571 + if (pointer.page.y > (q.y - this.options.scrollSensitivity)) {
1.572 + speed[1] = pointer.page.y - (q.y - this.options.scrollSensitivity);
1.573 + } else if (pointer.page.y < (p.y + this.options.scrollSensitivity)) {
1.574 + speed[1] = pointer.page.y - (p.y + this.options.scrollSensitivity);
1.575 + }
1.576 + this.startScrolling(speed);
1.577 + }
1.578 +
1.579 + // fix AppleWebKit rendering
1.580 + if (/AppleWebKit/.test(navigator.appVersion)) {
1.581 + window.scrollBy(0, 0);
1.582 + }
1.583 + event.stop();
1.584 + },
1.585 +
1.586 + /** @id MochiKit.DragAndDrop.finishDrag */
1.587 + finishDrag: function (event, success) {
1.588 + var dr = MochiKit.DragAndDrop;
1.589 + this.dragging = false;
1.590 + if (this.options.selectclass) {
1.591 + MochiKit.DOM.removeElementClass(this.element,
1.592 + this.options.selectclass);
1.593 + }
1.594 +
1.595 + if (this.options.ghosting) {
1.596 + // XXX: from a user point of view, it would be better to remove
1.597 + // the node only *after* the MochiKit.Visual.Move end when used
1.598 + // with revert.
1.599 + MochiKit.Position.relativize(this.element, this.ghostPosition);
1.600 + MochiKit.DOM.removeElement(this._clone);
1.601 + this._clone = null;
1.602 + }
1.603 +
1.604 + if (success) {
1.605 + dr.Droppables.fire(event, this.element);
1.606 + }
1.607 + dr.Draggables.notify('end', this, event);
1.608 +
1.609 + var revert = this.options.revert;
1.610 + if (revert && typeof(revert) == 'function') {
1.611 + revert = revert(this.element);
1.612 + }
1.613 +
1.614 + var d = this.currentDelta();
1.615 + if (revert && this.options.reverteffect) {
1.616 + this._revert = this.options.reverteffect(this.element,
1.617 + d[1] - this.delta[1], d[0] - this.delta[0]);
1.618 + } else {
1.619 + this.delta = d;
1.620 + }
1.621 +
1.622 + if (this.options.zindex) {
1.623 + this.element.style.zIndex = this.originalZ;
1.624 + }
1.625 +
1.626 + if (this.options.endeffect) {
1.627 + this.options.endeffect(this.element);
1.628 + }
1.629 +
1.630 + dr.Draggables.deactivate();
1.631 + dr.Droppables.reset(this.element);
1.632 + },
1.633 +
1.634 + /** @id MochiKit.DragAndDrop.keyPress */
1.635 + keyPress: function (event) {
1.636 + if (event.key().string != "KEY_ESCAPE") {
1.637 + return;
1.638 + }
1.639 + this.finishDrag(event, false);
1.640 + event.stop();
1.641 + },
1.642 +
1.643 + /** @id MochiKit.DragAndDrop.endDrag */
1.644 + endDrag: function (event) {
1.645 + if (!this.dragging) {
1.646 + return;
1.647 + }
1.648 + this.stopScrolling();
1.649 + this.finishDrag(event, true);
1.650 + event.stop();
1.651 + },
1.652 +
1.653 + /** @id MochiKit.DragAndDrop.draw */
1.654 + draw: function (point) {
1.655 + var pos = MochiKit.Position.cumulativeOffset(this.element);
1.656 + var d = this.currentDelta();
1.657 + pos.x -= d[0];
1.658 + pos.y -= d[1];
1.659 +
1.660 + if (this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
1.661 + pos.x -= this.options.scroll.scrollLeft - this.originalScrollLeft;
1.662 + pos.y -= this.options.scroll.scrollTop - this.originalScrollTop;
1.663 + }
1.664 +
1.665 + var p = [point.page.x - pos.x - this.offset[0],
1.666 + point.page.y - pos.y - this.offset[1]];
1.667 +
1.668 + if (this.options.snap) {
1.669 + if (typeof(this.options.snap) == 'function') {
1.670 + p = this.options.snap(p[0], p[1]);
1.671 + } else {
1.672 + if (this.options.snap instanceof Array) {
1.673 + var i = -1;
1.674 + p = MochiKit.Base.map(MochiKit.Base.bind(function (v) {
1.675 + i += 1;
1.676 + return Math.round(v/this.options.snap[i]) *
1.677 + this.options.snap[i];
1.678 + }, this), p);
1.679 + } else {
1.680 + p = MochiKit.Base.map(MochiKit.Base.bind(function (v) {
1.681 + return Math.round(v/this.options.snap) *
1.682 + this.options.snap;
1.683 + }, this), p);
1.684 + }
1.685 + }
1.686 + }
1.687 + var style = this.element.style;
1.688 + if ((!this.options.constraint) ||
1.689 + (this.options.constraint == 'horizontal')) {
1.690 + style.left = p[0] + 'px';
1.691 + }
1.692 + if ((!this.options.constraint) ||
1.693 + (this.options.constraint == 'vertical')) {
1.694 + style.top = p[1] + 'px';
1.695 + }
1.696 + if (style.visibility == 'hidden') {
1.697 + style.visibility = ''; // fix gecko rendering
1.698 + }
1.699 + },
1.700 +
1.701 + /** @id MochiKit.DragAndDrop.stopScrolling */
1.702 + stopScrolling: function () {
1.703 + if (this.scrollInterval) {
1.704 + clearInterval(this.scrollInterval);
1.705 + this.scrollInterval = null;
1.706 + MochiKit.DragAndDrop.Draggables._lastScrollPointer = null;
1.707 + }
1.708 + },
1.709 +
1.710 + /** @id MochiKit.DragAndDrop.startScrolling */
1.711 + startScrolling: function (speed) {
1.712 + if (!speed[0] && !speed[1]) {
1.713 + return;
1.714 + }
1.715 + this.scrollSpeed = [speed[0] * this.options.scrollSpeed,
1.716 + speed[1] * this.options.scrollSpeed];
1.717 + this.lastScrolled = new Date();
1.718 + this.scrollInterval = setInterval(MochiKit.Base.bind(this.scroll, this), 10);
1.719 + },
1.720 +
1.721 + /** @id MochiKit.DragAndDrop.scroll */
1.722 + scroll: function () {
1.723 + var current = new Date();
1.724 + var delta = current - this.lastScrolled;
1.725 + this.lastScrolled = current;
1.726 +
1.727 + if (this.options.scroll == window) {
1.728 + var s = this._getWindowScroll(this.options.scroll);
1.729 + if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
1.730 + var dm = delta / 1000;
1.731 + this.options.scroll.scrollTo(s.left + dm * this.scrollSpeed[0],
1.732 + s.top + dm * this.scrollSpeed[1]);
1.733 + }
1.734 + } else {
1.735 + this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
1.736 + this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000;
1.737 + }
1.738 +
1.739 + var d = MochiKit.DragAndDrop;
1.740 +
1.741 + MochiKit.Position.prepare();
1.742 + d.Droppables.show(d.Draggables._lastPointer, this.element);
1.743 + d.Draggables.notify('drag', this);
1.744 + if (this._isScrollChild) {
1.745 + d.Draggables._lastScrollPointer = d.Draggables._lastScrollPointer || d.Draggables._lastPointer;
1.746 + d.Draggables._lastScrollPointer.x += this.scrollSpeed[0] * delta / 1000;
1.747 + d.Draggables._lastScrollPointer.y += this.scrollSpeed[1] * delta / 1000;
1.748 + if (d.Draggables._lastScrollPointer.x < 0) {
1.749 + d.Draggables._lastScrollPointer.x = 0;
1.750 + }
1.751 + if (d.Draggables._lastScrollPointer.y < 0) {
1.752 + d.Draggables._lastScrollPointer.y = 0;
1.753 + }
1.754 + this.draw(d.Draggables._lastScrollPointer);
1.755 + }
1.756 +
1.757 + this.options.onchange(this);
1.758 + },
1.759 +
1.760 + _getWindowScroll: function (win) {
1.761 + var vp, w, h;
1.762 + MochiKit.DOM.withWindow(win, function () {
1.763 + vp = MochiKit.Style.getViewportPosition(win.document);
1.764 + });
1.765 + if (win.innerWidth) {
1.766 + w = win.innerWidth;
1.767 + h = win.innerHeight;
1.768 + } else if (win.document.documentElement && win.document.documentElement.clientWidth) {
1.769 + w = win.document.documentElement.clientWidth;
1.770 + h = win.document.documentElement.clientHeight;
1.771 + } else {
1.772 + w = win.document.body.offsetWidth;
1.773 + h = win.document.body.offsetHeight;
1.774 + }
1.775 + return {top: vp.y, left: vp.x, width: w, height: h};
1.776 + },
1.777 +
1.778 + /** @id MochiKit.DragAndDrop.repr */
1.779 + repr: function () {
1.780 + return '[' + this.__class__.NAME + ", options:" + MochiKit.Base.repr(this.options) + "]";
1.781 + }
1.782 +};
1.783 +
1.784 +MochiKit.DragAndDrop.__new__ = function () {
1.785 + MochiKit.Base.nameFunctions(this);
1.786 +
1.787 + this.EXPORT_TAGS = {
1.788 + ":common": this.EXPORT,
1.789 + ":all": MochiKit.Base.concat(this.EXPORT, this.EXPORT_OK)
1.790 + };
1.791 +};
1.792 +
1.793 +MochiKit.DragAndDrop.__new__();
1.794 +
1.795 +MochiKit.Base._exportSymbols(this, MochiKit.DragAndDrop);
1.796 +
