1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/testing/mochitest/MochiKit/DragAndDrop.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,821 @@
1.4 +/***
1.5 +MochiKit.DragAndDrop 1.4
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 +if (typeof(dojo) != 'undefined') {
1.15 + dojo.provide('MochiKit.DragAndDrop');
1.16 + dojo.require('MochiKit.Base');
1.17 + dojo.require('MochiKit.DOM');
1.18 + dojo.require('MochiKit.Iter');
1.19 + dojo.require('MochiKit.Visual');
1.20 + dojo.require('MochiKit.Signal');
1.21 +}
1.22 +
1.23 +if (typeof(JSAN) != 'undefined') {
1.24 + JSAN.use("MochiKit.Base", []);
1.25 + JSAN.use("MochiKit.DOM", []);
1.26 + JSAN.use("MochiKit.Visual", []);
1.27 + JSAN.use("MochiKit.Iter", []);
1.28 + JSAN.use("MochiKit.Signal", []);
1.29 +}
1.30 +
1.31 +try {
1.32 + if (typeof(MochiKit.Base) == 'undefined' ||
1.33 + typeof(MochiKit.DOM) == 'undefined' ||
1.34 + typeof(MochiKit.Visual) == 'undefined' ||
1.35 + typeof(MochiKit.Signal) == 'undefined' ||
1.36 + typeof(MochiKit.Iter) == 'undefined') {
1.37 + throw "";
1.38 + }
1.39 +} catch (e) {
1.40 + throw "MochiKit.DragAndDrop depends on MochiKit.Base, MochiKit.DOM, MochiKit.Visual, MochiKit.Signal and MochiKit.Iter!";
1.41 +}
1.42 +
1.43 +if (typeof(MochiKit.DragAndDrop) == 'undefined') {
1.44 + MochiKit.DragAndDrop = {};
1.45 +}
1.46 +
1.47 +MochiKit.DragAndDrop.NAME = 'MochiKit.DragAndDrop';
1.48 +MochiKit.DragAndDrop.VERSION = '1.4';
1.49 +
1.50 +MochiKit.DragAndDrop.__repr__ = function () {
1.51 + return '[' + this.NAME + ' ' + this.VERSION + ']';
1.52 +};
1.53 +
1.54 +MochiKit.DragAndDrop.toString = function () {
1.55 + return this.__repr__();
1.56 +};
1.57 +
1.58 +MochiKit.DragAndDrop.EXPORT = [
1.59 + "Droppable",
1.60 + "Draggable"
1.61 +];
1.62 +
1.63 +MochiKit.DragAndDrop.EXPORT_OK = [
1.64 + "Droppables",
1.65 + "Draggables"
1.66 +];
1.67 +
1.68 +MochiKit.DragAndDrop.Droppables = {
1.69 + /***
1.70 +
1.71 + Manage all droppables. Shouldn't be used, use the Droppable object instead.
1.72 +
1.73 + ***/
1.74 + drops: [],
1.75 +
1.76 + remove: function (element) {
1.77 + this.drops = MochiKit.Base.filter(function (d) {
1.78 + return d.element != MochiKit.DOM.getElement(element)
1.79 + }, this.drops);
1.80 + },
1.81 +
1.82 + register: function (drop) {
1.83 + this.drops.push(drop);
1.84 + },
1.85 +
1.86 + unregister: function (drop) {
1.87 + this.drops = MochiKit.Base.filter(function (d) {
1.88 + return d != drop;
1.89 + }, this.drops);
1.90 + },
1.91 +
1.92 + prepare: function (element) {
1.93 + MochiKit.Base.map(function (drop) {
1.94 + if (drop.isAccepted(element)) {
1.95 + if (drop.options.activeclass) {
1.96 + MochiKit.DOM.addElementClass(drop.element,
1.97 + drop.options.activeclass);
1.98 + }
1.99 + drop.options.onactive(drop.element, element);
1.100 + }
1.101 + }, this.drops);
1.102 + },
1.103 +
1.104 + findDeepestChild: function (drops) {
1.105 + deepest = drops[0];
1.106 +
1.107 + for (i = 1; i < drops.length; ++i) {
1.108 + if (MochiKit.DOM.isParent(drops[i].element, deepest.element)) {
1.109 + deepest = drops[i];
1.110 + }
1.111 + }
1.112 + return deepest;
1.113 + },
1.114 +
1.115 + show: function (point, element) {
1.116 + if (!this.drops.length) {
1.117 + return;
1.118 + }
1.119 + var affected = [];
1.120 +
1.121 + if (this.last_active) {
1.122 + this.last_active.deactivate();
1.123 + }
1.124 + MochiKit.Iter.forEach(this.drops, function (drop) {
1.125 + if (drop.isAffected(point, element)) {
1.126 + affected.push(drop);
1.127 + }
1.128 + });
1.129 + if (affected.length > 0) {
1.130 + drop = this.findDeepestChild(affected);
1.131 + MochiKit.Position.within(drop.element, point.page.x, point.page.y);
1.132 + drop.options.onhover(element, drop.element,
1.133 + MochiKit.Position.overlap(drop.options.overlap, drop.element));
1.134 + drop.activate();
1.135 + }
1.136 + },
1.137 +
1.138 + fire: function (event, element) {
1.139 + if (!this.last_active) {
1.140 + return;
1.141 + }
1.142 + MochiKit.Position.prepare();
1.143 +
1.144 + if (this.last_active.isAffected(event.mouse(), element)) {
1.145 + this.last_active.options.ondrop(element,
1.146 + this.last_active.element, event);
1.147 + }
1.148 + },
1.149 +
1.150 + reset: function (element) {
1.151 + MochiKit.Base.map(function (drop) {
1.152 + if (drop.options.activeclass) {
1.153 + MochiKit.DOM.removeElementClass(drop.element,
1.154 + drop.options.activeclass);
1.155 + }
1.156 + drop.options.ondesactive(drop.element, element);
1.157 + }, this.drops);
1.158 + if (this.last_active) {
1.159 + this.last_active.deactivate();
1.160 + }
1.161 + }
1.162 +};
1.163 +
1.164 +/** @id MochiKit.DragAndDrop.Droppable */
1.165 +MochiKit.DragAndDrop.Droppable = function (element, options) {
1.166 + this.__init__(element, options);
1.167 +};
1.168 +
1.169 +MochiKit.DragAndDrop.Droppable.prototype = {
1.170 + /***
1.171 +
1.172 + A droppable object. Simple use is to create giving an element:
1.173 +
1.174 + new MochiKit.DragAndDrop.Droppable('myelement');
1.175 +
1.176 + Generally you'll want to define the 'ondrop' function and maybe the
1.177 + 'accept' option to filter draggables.
1.178 +
1.179 + ***/
1.180 + __class__: MochiKit.DragAndDrop.Droppable,
1.181 +
1.182 + __init__: function (element, /* optional */options) {
1.183 + var d = MochiKit.DOM;
1.184 + var b = MochiKit.Base;
1.185 + this.element = d.getElement(element);
1.186 + this.options = b.update({
1.187 +
1.188 + /** @id MochiKit.DragAndDrop.greedy */
1.189 + greedy: true,
1.190 +
1.191 + /** @id MochiKit.DragAndDrop.hoverclass */
1.192 + hoverclass: null,
1.193 +
1.194 + /** @id MochiKit.DragAndDrop.activeclass */
1.195 + activeclass: null,
1.196 +
1.197 + /** @id MochiKit.DragAndDrop.hoverfunc */
1.198 + hoverfunc: b.noop,
1.199 +
1.200 + /** @id MochiKit.DragAndDrop.accept */
1.201 + accept: null,
1.202 +
1.203 + /** @id MochiKit.DragAndDrop.onactive */
1.204 + onactive: b.noop,
1.205 +
1.206 + /** @id MochiKit.DragAndDrop.ondesactive */
1.207 + ondesactive: b.noop,
1.208 +
1.209 + /** @id MochiKit.DragAndDrop.onhover */
1.210 + onhover: b.noop,
1.211 +
1.212 + /** @id MochiKit.DragAndDrop.ondrop */
1.213 + ondrop: b.noop,
1.214 +
1.215 + /** @id MochiKit.DragAndDrop.containment */
1.216 + containment: [],
1.217 + tree: false
1.218 + }, options || {});
1.219 +
1.220 + // cache containers
1.221 + this.options._containers = [];
1.222 + b.map(MochiKit.Base.bind(function (c) {
1.223 + this.options._containers.push(d.getElement(c));
1.224 + }, this), this.options.containment);
1.225 +
1.226 + d.makePositioned(this.element); // fix IE
1.227 +
1.228 + MochiKit.DragAndDrop.Droppables.register(this);
1.229 + },
1.230 +
1.231 + /** @id MochiKit.DragAndDrop.isContained */
1.232 + isContained: function (element) {
1.233 + if (this.options._containers.length) {
1.234 + var containmentNode;
1.235 + if (this.options.tree) {
1.236 + containmentNode = element.treeNode;
1.237 + } else {
1.238 + containmentNode = element.parentNode;
1.239 + }
1.240 + return MochiKit.Iter.some(this.options._containers, function (c) {
1.241 + return containmentNode == c;
1.242 + });
1.243 + } else {
1.244 + return true;
1.245 + }
1.246 + },
1.247 +
1.248 + /** @id MochiKit.DragAndDrop.isAccepted */
1.249 + isAccepted: function (element) {
1.250 + return ((!this.options.accept) || MochiKit.Iter.some(
1.251 + this.options.accept, function (c) {
1.252 + return MochiKit.DOM.hasElementClass(element, c);
1.253 + }));
1.254 + },
1.255 +
1.256 + /** @id MochiKit.DragAndDrop.isAffected */
1.257 + isAffected: function (point, element) {
1.258 + return ((this.element != element) &&
1.259 + this.isContained(element) &&
1.260 + this.isAccepted(element) &&
1.261 + MochiKit.Position.within(this.element, point.page.x,
1.262 + point.page.y));
1.263 + },
1.264 +
1.265 + /** @id MochiKit.DragAndDrop.deactivate */
1.266 + deactivate: function () {
1.267 + /***
1.268 +
1.269 + A droppable is deactivate when a draggable has been over it and left.
1.270 +
1.271 + ***/
1.272 + if (this.options.hoverclass) {
1.273 + MochiKit.DOM.removeElementClass(this.element,
1.274 + this.options.hoverclass);
1.275 + }
1.276 + this.options.hoverfunc(this.element, false);
1.277 + MochiKit.DragAndDrop.Droppables.last_active = null;
1.278 + },
1.279 +
1.280 + /** @id MochiKit.DragAndDrop.activate */
1.281 + activate: function () {
1.282 + /***
1.283 +
1.284 + A droppable is active when a draggable is over it.
1.285 +
1.286 + ***/
1.287 + if (this.options.hoverclass) {
1.288 + MochiKit.DOM.addElementClass(this.element, this.options.hoverclass);
1.289 + }
1.290 + this.options.hoverfunc(this.element, true);
1.291 + MochiKit.DragAndDrop.Droppables.last_active = this;
1.292 + },
1.293 +
1.294 + /** @id MochiKit.DragAndDrop.destroy */
1.295 + destroy: function () {
1.296 + /***
1.297 +
1.298 + Delete this droppable.
1.299 +
1.300 + ***/
1.301 + MochiKit.DragAndDrop.Droppables.unregister(this);
1.302 + },
1.303 +
1.304 + /** @id MochiKit.DragAndDrop.repr */
1.305 + repr: function () {
1.306 + return '[' + this.__class__.NAME + ", options:" + MochiKit.Base.repr(this.options) + "]";
1.307 + }
1.308 +};
1.309 +
1.310 +MochiKit.DragAndDrop.Draggables = {
1.311 + /***
1.312 +
1.313 + Manage draggables elements. Not intended to direct use.
1.314 +
1.315 + ***/
1.316 + drags: [],
1.317 +
1.318 + register: function (draggable) {
1.319 + if (this.drags.length === 0) {
1.320 + var conn = MochiKit.Signal.connect;
1.321 + this.eventMouseUp = conn(document, 'onmouseup', this, this.endDrag);
1.322 + this.eventMouseMove = conn(document, 'onmousemove', this,
1.323 + this.updateDrag);
1.324 + this.eventKeypress = conn(document, 'onkeypress', this,
1.325 + this.keyPress);
1.326 + }
1.327 + this.drags.push(draggable);
1.328 + },
1.329 +
1.330 + unregister: function (draggable) {
1.331 + this.drags = MochiKit.Base.filter(function (d) {
1.332 + return d != draggable;
1.333 + }, this.drags);
1.334 + if (this.drags.length === 0) {
1.335 + var disc = MochiKit.Signal.disconnect
1.336 + disc(this.eventMouseUp);
1.337 + disc(this.eventMouseMove);
1.338 + disc(this.eventKeypress);
1.339 + }
1.340 + },
1.341 +
1.342 + activate: function (draggable) {
1.343 + // allows keypress events if window is not currently focused
1.344 + // fails for Safari
1.345 + window.focus();
1.346 + this.activeDraggable = draggable;
1.347 + },
1.348 +
1.349 + deactivate: function () {
1.350 + this.activeDraggable = null;
1.351 + },
1.352 +
1.353 + updateDrag: function (event) {
1.354 + if (!this.activeDraggable) {
1.355 + return;
1.356 + }
1.357 + var pointer = event.mouse();
1.358 + // Mozilla-based browsers fire successive mousemove events with
1.359 + // the same coordinates, prevent needless redrawing (moz bug?)
1.360 + if (this._lastPointer && (MochiKit.Base.repr(this._lastPointer.page) ==
1.361 + MochiKit.Base.repr(pointer.page))) {
1.362 + return;
1.363 + }
1.364 + this._lastPointer = pointer;
1.365 + this.activeDraggable.updateDrag(event, pointer);
1.366 + },
1.367 +
1.368 + endDrag: function (event) {
1.369 + if (!this.activeDraggable) {
1.370 + return;
1.371 + }
1.372 + this._lastPointer = null;
1.373 + this.activeDraggable.endDrag(event);
1.374 + this.activeDraggable = null;
1.375 + },
1.376 +
1.377 + keyPress: function (event) {
1.378 + if (this.activeDraggable) {
1.379 + this.activeDraggable.keyPress(event);
1.380 + }
1.381 + },
1.382 +
1.383 + notify: function (eventName, draggable, event) {
1.384 + MochiKit.Signal.signal(this, eventName, draggable, event);
1.385 + }
1.386 +};
1.387 +
1.388 +/** @id MochiKit.DragAndDrop.Draggable */
1.389 +MochiKit.DragAndDrop.Draggable = function (element, options) {
1.390 + this.__init__(element, options);
1.391 +};
1.392 +
1.393 +MochiKit.DragAndDrop.Draggable.prototype = {
1.394 + /***
1.395 +
1.396 + A draggable object. Simple instantiate :
1.397 +
1.398 + new MochiKit.DragAndDrop.Draggable('myelement');
1.399 +
1.400 + ***/
1.401 + __class__ : MochiKit.DragAndDrop.Draggable,
1.402 +
1.403 + __init__: function (element, /* optional */options) {
1.404 + var v = MochiKit.Visual;
1.405 + var b = MochiKit.Base;
1.406 + options = b.update({
1.407 +
1.408 + /** @id MochiKit.DragAndDrop.handle */
1.409 + handle: false,
1.410 +
1.411 + /** @id MochiKit.DragAndDrop.starteffect */
1.412 + starteffect: function (innerelement) {
1.413 + this._savedOpacity = MochiKit.Style.getOpacity(innerelement) || 1.0;
1.414 + new v.Opacity(innerelement, {duration:0.2, from:this._savedOpacity, to:0.7});
1.415 + },
1.416 + /** @id MochiKit.DragAndDrop.reverteffect */
1.417 + reverteffect: function (innerelement, top_offset, left_offset) {
1.418 + var dur = Math.sqrt(Math.abs(top_offset^2) +
1.419 + Math.abs(left_offset^2))*0.02;
1.420 + return new v.Move(innerelement,
1.421 + {x: -left_offset, y: -top_offset, duration: dur});
1.422 + },
1.423 +
1.424 + /** @id MochiKit.DragAndDrop.endeffect */
1.425 + endeffect: function (innerelement) {
1.426 + new v.Opacity(innerelement, {duration:0.2, from:0.7, to:this._savedOpacity});
1.427 + },
1.428 +
1.429 + /** @id MochiKit.DragAndDrop.onchange */
1.430 + onchange: b.noop,
1.431 +
1.432 + /** @id MochiKit.DragAndDrop.zindex */
1.433 + zindex: 1000,
1.434 +
1.435 + /** @id MochiKit.DragAndDrop.revert */
1.436 + revert: false,
1.437 +
1.438 + /** @id MochiKit.DragAndDrop.scroll */
1.439 + scroll: false,
1.440 +
1.441 + /** @id MochiKit.DragAndDrop.scrollSensitivity */
1.442 + scrollSensitivity: 20,
1.443 +
1.444 + /** @id MochiKit.DragAndDrop.scrollSpeed */
1.445 + scrollSpeed: 15,
1.446 + // false, or xy or [x, y] or function (x, y){return [x, y];}
1.447 +
1.448 + /** @id MochiKit.DragAndDrop.snap */
1.449 + snap: false
1.450 + }, options || {});
1.451 +
1.452 + var d = MochiKit.DOM;
1.453 + this.element = d.getElement(element);
1.454 +
1.455 + if (options.handle && (typeof(options.handle) == 'string')) {
1.456 + this.handle = d.getFirstElementByTagAndClassName(null,
1.457 + options.handle, this.element);
1.458 + }
1.459 + if (!this.handle) {
1.460 + this.handle = d.getElement(options.handle);
1.461 + }
1.462 + if (!this.handle) {
1.463 + this.handle = this.element;
1.464 + }
1.465 +
1.466 + if (options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
1.467 + options.scroll = d.getElement(options.scroll);
1.468 + this._isScrollChild = MochiKit.DOM.isChildNode(this.element, options.scroll);
1.469 + }
1.470 +
1.471 + d.makePositioned(this.element); // fix IE
1.472 +
1.473 + this.delta = this.currentDelta();
1.474 + this.options = options;
1.475 + this.dragging = false;
1.476 +
1.477 + this.eventMouseDown = MochiKit.Signal.connect(this.handle,
1.478 + 'onmousedown', this, this.initDrag);
1.479 + MochiKit.DragAndDrop.Draggables.register(this);
1.480 + },
1.481 +
1.482 + /** @id MochiKit.DragAndDrop.destroy */
1.483 + destroy: function () {
1.484 + MochiKit.Signal.disconnect(this.eventMouseDown);
1.485 + MochiKit.DragAndDrop.Draggables.unregister(this);
1.486 + },
1.487 +
1.488 + /** @id MochiKit.DragAndDrop.currentDelta */
1.489 + currentDelta: function () {
1.490 + var s = MochiKit.Style.getStyle;
1.491 + return [
1.492 + parseInt(s(this.element, 'left') || '0'),
1.493 + parseInt(s(this.element, 'top') || '0')];
1.494 + },
1.495 +
1.496 + /** @id MochiKit.DragAndDrop.initDrag */
1.497 + initDrag: function (event) {
1.498 + if (!event.mouse().button.left) {
1.499 + return;
1.500 + }
1.501 + // abort on form elements, fixes a Firefox issue
1.502 + var src = event.target();
1.503 + var tagName = (src.tagName || '').toUpperCase();
1.504 + if (tagName === 'INPUT' || tagName === 'SELECT' ||
1.505 + tagName === 'OPTION' || tagName === 'BUTTON' ||
1.506 + tagName === 'TEXTAREA') {
1.507 + return;
1.508 + }
1.509 +
1.510 + if (this._revert) {
1.511 + this._revert.cancel();
1.512 + this._revert = null;
1.513 + }
1.514 +
1.515 + var pointer = event.mouse();
1.516 + var pos = MochiKit.Position.cumulativeOffset(this.element);
1.517 + this.offset = [pointer.page.x - pos.x, pointer.page.y - pos.y]
1.518 +
1.519 + MochiKit.DragAndDrop.Draggables.activate(this);
1.520 + event.stop();
1.521 + },
1.522 +
1.523 + /** @id MochiKit.DragAndDrop.startDrag */
1.524 + startDrag: function (event) {
1.525 + this.dragging = true;
1.526 + if (this.options.selectclass) {
1.527 + MochiKit.DOM.addElementClass(this.element,
1.528 + this.options.selectclass);
1.529 + }
1.530 + if (this.options.zindex) {
1.531 + this.originalZ = parseInt(MochiKit.Style.getStyle(this.element,
1.532 + 'z-index') || '0');
1.533 + this.element.style.zIndex = this.options.zindex;
1.534 + }
1.535 +
1.536 + if (this.options.ghosting) {
1.537 + this._clone = this.element.cloneNode(true);
1.538 + this.ghostPosition = MochiKit.Position.absolutize(this.element);
1.539 + this.element.parentNode.insertBefore(this._clone, this.element);
1.540 + }
1.541 +
1.542 + if (this.options.scroll) {
1.543 + if (this.options.scroll == window) {
1.544 + var where = this._getWindowScroll(this.options.scroll);
1.545 + this.originalScrollLeft = where.left;
1.546 + this.originalScrollTop = where.top;
1.547 + } else {
1.548 + this.originalScrollLeft = this.options.scroll.scrollLeft;
1.549 + this.originalScrollTop = this.options.scroll.scrollTop;
1.550 + }
1.551 + }
1.552 +
1.553 + MochiKit.DragAndDrop.Droppables.prepare(this.element);
1.554 + MochiKit.DragAndDrop.Draggables.notify('start', this, event);
1.555 + if (this.options.starteffect) {
1.556 + this.options.starteffect(this.element);
1.557 + }
1.558 + },
1.559 +
1.560 + /** @id MochiKit.DragAndDrop.updateDrag */
1.561 + updateDrag: function (event, pointer) {
1.562 + if (!this.dragging) {
1.563 + this.startDrag(event);
1.564 + }
1.565 + MochiKit.Position.prepare();
1.566 + MochiKit.DragAndDrop.Droppables.show(pointer, this.element);
1.567 + MochiKit.DragAndDrop.Draggables.notify('drag', this, event);
1.568 + this.draw(pointer);
1.569 + this.options.onchange(this);
1.570 +
1.571 + if (this.options.scroll) {
1.572 + this.stopScrolling();
1.573 + var p, q;
1.574 + if (this.options.scroll == window) {
1.575 + var s = this._getWindowScroll(this.options.scroll);
1.576 + p = new MochiKit.Style.Coordinates(s.left, s.top);
1.577 + q = new MochiKit.Style.Coordinates(s.left + s.width,
1.578 + s.top + s.height);
1.579 + } else {
1.580 + p = MochiKit.Position.page(this.options.scroll);
1.581 + p.x += this.options.scroll.scrollLeft;
1.582 + p.y += this.options.scroll.scrollTop;
1.583 + p.x += (window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0);
1.584 + p.y += (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0);
1.585 + q = new MochiKit.Style.Coordinates(p.x + this.options.scroll.offsetWidth,
1.586 + p.y + this.options.scroll.offsetHeight);
1.587 + }
1.588 + var speed = [0, 0];
1.589 + if (pointer.page.x > (q.x - this.options.scrollSensitivity)) {
1.590 + speed[0] = pointer.page.x - (q.x - this.options.scrollSensitivity);
1.591 + } else if (pointer.page.x < (p.x + this.options.scrollSensitivity)) {
1.592 + speed[0] = pointer.page.x - (p.x + this.options.scrollSensitivity);
1.593 + }
1.594 + if (pointer.page.y > (q.y - this.options.scrollSensitivity)) {
1.595 + speed[1] = pointer.page.y - (q.y - this.options.scrollSensitivity);
1.596 + } else if (pointer.page.y < (p.y + this.options.scrollSensitivity)) {
1.597 + speed[1] = pointer.page.y - (p.y + this.options.scrollSensitivity);
1.598 + }
1.599 + this.startScrolling(speed);
1.600 + }
1.601 +
1.602 + // fix AppleWebKit rendering
1.603 + if (/AppleWebKit'/.test(navigator.appVersion)) {
1.604 + window.scrollBy(0, 0);
1.605 + }
1.606 + event.stop();
1.607 + },
1.608 +
1.609 + /** @id MochiKit.DragAndDrop.finishDrag */
1.610 + finishDrag: function (event, success) {
1.611 + var dr = MochiKit.DragAndDrop;
1.612 + this.dragging = false;
1.613 + if (this.options.selectclass) {
1.614 + MochiKit.DOM.removeElementClass(this.element,
1.615 + this.options.selectclass);
1.616 + }
1.617 +
1.618 + if (this.options.ghosting) {
1.619 + // XXX: from a user point of view, it would be better to remove
1.620 + // the node only *after* the MochiKit.Visual.Move end when used
1.621 + // with revert.
1.622 + MochiKit.Position.relativize(this.element, this.ghostPosition);
1.623 + MochiKit.DOM.removeElement(this._clone);
1.624 + this._clone = null;
1.625 + }
1.626 +
1.627 + if (success) {
1.628 + dr.Droppables.fire(event, this.element);
1.629 + }
1.630 + dr.Draggables.notify('end', this, event);
1.631 +
1.632 + var revert = this.options.revert;
1.633 + if (revert && typeof(revert) == 'function') {
1.634 + revert = revert(this.element);
1.635 + }
1.636 +
1.637 + var d = this.currentDelta();
1.638 + if (revert && this.options.reverteffect) {
1.639 + this._revert = this.options.reverteffect(this.element,
1.640 + d[1] - this.delta[1], d[0] - this.delta[0]);
1.641 + } else {
1.642 + this.delta = d;
1.643 + }
1.644 +
1.645 + if (this.options.zindex) {
1.646 + this.element.style.zIndex = this.originalZ;
1.647 + }
1.648 +
1.649 + if (this.options.endeffect) {
1.650 + this.options.endeffect(this.element);
1.651 + }
1.652 +
1.653 + dr.Draggables.deactivate();
1.654 + dr.Droppables.reset(this.element);
1.655 + },
1.656 +
1.657 + /** @id MochiKit.DragAndDrop.keyPress */
1.658 + keyPress: function (event) {
1.659 + if (event.key().string != "KEY_ESCAPE") {
1.660 + return;
1.661 + }
1.662 + this.finishDrag(event, false);
1.663 + event.stop();
1.664 + },
1.665 +
1.666 + /** @id MochiKit.DragAndDrop.endDrag */
1.667 + endDrag: function (event) {
1.668 + if (!this.dragging) {
1.669 + return;
1.670 + }
1.671 + this.stopScrolling();
1.672 + this.finishDrag(event, true);
1.673 + event.stop();
1.674 + },
1.675 +
1.676 + /** @id MochiKit.DragAndDrop.draw */
1.677 + draw: function (point) {
1.678 + var pos = MochiKit.Position.cumulativeOffset(this.element);
1.679 + if (this.options.ghosting) {
1.680 + var r = MochiKit.Position.realOffset(this.element);
1.681 + pos.x += r.x - MochiKit.Position.windowOffset.x;
1.682 + pos.y += r.y - MochiKit.Position.windowOffset.y;
1.683 + }
1.684 + var d = this.currentDelta();
1.685 + pos.x -= d[0];
1.686 + pos.y -= d[1];
1.687 +
1.688 + if (this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
1.689 + pos.x -= this.options.scroll.scrollLeft - this.originalScrollLeft;
1.690 + pos.y -= this.options.scroll.scrollTop - this.originalScrollTop;
1.691 + }
1.692 +
1.693 + var p = [point.page.x - pos.x - this.offset[0],
1.694 + point.page.y - pos.y - this.offset[1]]
1.695 +
1.696 + if (this.options.snap) {
1.697 + if (typeof(this.options.snap) == 'function') {
1.698 + p = this.options.snap(p[0], p[1]);
1.699 + } else {
1.700 + if (this.options.snap instanceof Array) {
1.701 + var i = -1;
1.702 + p = MochiKit.Base.map(MochiKit.Base.bind(function (v) {
1.703 + i += 1;
1.704 + return Math.round(v/this.options.snap[i]) *
1.705 + this.options.snap[i]
1.706 + }, this), p)
1.707 + } else {
1.708 + p = MochiKit.Base.map(MochiKit.Base.bind(function (v) {
1.709 + return Math.round(v/this.options.snap) *
1.710 + this.options.snap
1.711 + }, this), p)
1.712 + }
1.713 + }
1.714 + }
1.715 + var style = this.element.style;
1.716 + if ((!this.options.constraint) ||
1.717 + (this.options.constraint == 'horizontal')) {
1.718 + style.left = p[0] + 'px';
1.719 + }
1.720 + if ((!this.options.constraint) ||
1.721 + (this.options.constraint == 'vertical')) {
1.722 + style.top = p[1] + 'px';
1.723 + }
1.724 + if (style.visibility == 'hidden') {
1.725 + style.visibility = ''; // fix gecko rendering
1.726 + }
1.727 + },
1.728 +
1.729 + /** @id MochiKit.DragAndDrop.stopScrolling */
1.730 + stopScrolling: function () {
1.731 + if (this.scrollInterval) {
1.732 + clearInterval(this.scrollInterval);
1.733 + this.scrollInterval = null;
1.734 + MochiKit.DragAndDrop.Draggables._lastScrollPointer = null;
1.735 + }
1.736 + },
1.737 +
1.738 + /** @id MochiKit.DragAndDrop.startScrolling */
1.739 + startScrolling: function (speed) {
1.740 + if (!speed[0] && !speed[1]) {
1.741 + return;
1.742 + }
1.743 + this.scrollSpeed = [speed[0] * this.options.scrollSpeed,
1.744 + speed[1] * this.options.scrollSpeed];
1.745 + this.lastScrolled = new Date();
1.746 + this.scrollInterval = setInterval(MochiKit.Base.bind(this.scroll, this), 10);
1.747 + },
1.748 +
1.749 + /** @id MochiKit.DragAndDrop.scroll */
1.750 + scroll: function () {
1.751 + var current = new Date();
1.752 + var delta = current - this.lastScrolled;
1.753 + this.lastScrolled = current;
1.754 +
1.755 + if (this.options.scroll == window) {
1.756 + var s = this._getWindowScroll(this.options.scroll);
1.757 + if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
1.758 + var d = delta / 1000;
1.759 + this.options.scroll.scrollTo(s.left + d * this.scrollSpeed[0],
1.760 + s.top + d * this.scrollSpeed[1]);
1.761 + }
1.762 + } else {
1.763 + this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
1.764 + this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000;
1.765 + }
1.766 +
1.767 + var d = MochiKit.DragAndDrop;
1.768 +
1.769 + MochiKit.Position.prepare();
1.770 + d.Droppables.show(d.Draggables._lastPointer, this.element);
1.771 + d.Draggables.notify('drag', this);
1.772 + if (this._isScrollChild) {
1.773 + d.Draggables._lastScrollPointer = d.Draggables._lastScrollPointer || d.Draggables._lastPointer;
1.774 + d.Draggables._lastScrollPointer.x += this.scrollSpeed[0] * delta / 1000;
1.775 + d.Draggables._lastScrollPointer.y += this.scrollSpeed[1] * delta / 1000;
1.776 + if (d.Draggables._lastScrollPointer.x < 0) {
1.777 + d.Draggables._lastScrollPointer.x = 0;
1.778 + }
1.779 + if (d.Draggables._lastScrollPointer.y < 0) {
1.780 + d.Draggables._lastScrollPointer.y = 0;
1.781 + }
1.782 + this.draw(d.Draggables._lastScrollPointer);
1.783 + }
1.784 +
1.785 + this.options.onchange(this);
1.786 + },
1.787 +
1.788 + _getWindowScroll: function (w) {
1.789 + var vp, w, h;
1.790 + MochiKit.DOM.withWindow(w, function () {
1.791 + vp = MochiKit.Style.getViewportPosition(w.document);
1.792 + });
1.793 + if (w.innerWidth) {
1.794 + w = w.innerWidth;
1.795 + h = w.innerHeight;
1.796 + } else if (w.document.documentElement && w.document.documentElement.clientWidth) {
1.797 + w = w.document.documentElement.clientWidth;
1.798 + h = w.document.documentElement.clientHeight;
1.799 + } else {
1.800 + w = w.document.body.offsetWidth;
1.801 + h = w.document.body.offsetHeight
1.802 + }
1.803 + return {top: vp.x, left: vp.y, width: w, height: h};
1.804 + },
1.805 +
1.806 + /** @id MochiKit.DragAndDrop.repr */
1.807 + repr: function () {
1.808 + return '[' + this.__class__.NAME + ", options:" + MochiKit.Base.repr(this.options) + "]";
1.809 + }
1.810 +};
1.811 +
1.812 +MochiKit.DragAndDrop.__new__ = function () {
1.813 + MochiKit.Base.nameFunctions(this);
1.814 +
1.815 + this.EXPORT_TAGS = {
1.816 + ":common": this.EXPORT,
1.817 + ":all": MochiKit.Base.concat(this.EXPORT, this.EXPORT_OK)
1.818 + };
1.819 +};
1.820 +
1.821 +MochiKit.DragAndDrop.__new__();
1.822 +
1.823 +MochiKit.Base._exportSymbols(this, MochiKit.DragAndDrop);
1.824 +
