diff options
Diffstat (limited to 'subsonic-main/src/main/webapp/script/webfx/slider.js')
| -rw-r--r-- | subsonic-main/src/main/webapp/script/webfx/slider.js | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/subsonic-main/src/main/webapp/script/webfx/slider.js b/subsonic-main/src/main/webapp/script/webfx/slider.js new file mode 100644 index 00000000..ddc6d756 --- /dev/null +++ b/subsonic-main/src/main/webapp/script/webfx/slider.js @@ -0,0 +1,489 @@ +/*----------------------------------------------------------------------------\ +| Slider 1.02 | +|-----------------------------------------------------------------------------| +| Created by Erik Arvidsson | +| (http://webfx.eae.net/contact.html#erik) | +| For WebFX (http://webfx.eae.net/) | +|-----------------------------------------------------------------------------| +| A slider control that degrades to an input control for non supported | +| browsers. | +|-----------------------------------------------------------------------------| +| Copyright (c) 2002, 2003, 2006 Erik Arvidsson | +|-----------------------------------------------------------------------------| +| Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 | +| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | +| Unless required by applicable law or agreed to in writing, software | +| distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | +| WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | +| License for the specific language governing permissions and limitations | +| under the License. | +|-----------------------------------------------------------------------------| +| Dependencies: timer.js - an OO abstraction of timers | +| range.js - provides the data model for the slider | +| winclassic.css or any other css file describing the look | +|-----------------------------------------------------------------------------| +| 2002-10-14 | Original version released | +| 2003-03-27 | Added a test in the constructor for missing oElement arg | +| 2003-11-27 | Only use mousewheel when focused | +| 2006-05-28 | Changed license to Apache Software License 2.0. | +|-----------------------------------------------------------------------------| +| Created 2002-10-14 | All changes are in the log above. | Updated 2006-05-28 | +\----------------------------------------------------------------------------*/ + +Slider.isSupported = typeof document.createElement != "undefined" && + typeof document.documentElement != "undefined" && + typeof document.documentElement.offsetWidth == "number"; + + +function Slider(oElement, oInput, sOrientation) { + if (!oElement) return; + this._orientation = sOrientation || "horizontal"; + this._range = new Range(); + this._range.setExtent(0); + this._blockIncrement = 10; + this._unitIncrement = 1; + this._timer = new Timer(100); + + + if (Slider.isSupported && oElement) { + + this.document = oElement.ownerDocument || oElement.document; + + this.element = oElement; + this.element.slider = this; + this.element.unselectable = "on"; + + // add class name tag to class name + this.element.className = this._orientation + " " + this.classNameTag + " " + this.element.className; + + // create line + this.line = this.document.createElement("DIV"); + this.line.className = "line"; + this.line.unselectable = "on"; + this.line.appendChild(this.document.createElement("DIV")); + this.element.appendChild(this.line); + + // create handle + this.handle = this.document.createElement("DIV"); + this.handle.className = "handle"; + this.handle.unselectable = "on"; + this.handle.appendChild(this.document.createElement("DIV")); + this.handle.firstChild.appendChild( + this.document.createTextNode(String.fromCharCode(160))); + this.element.appendChild(this.handle); + } + + this.input = oInput; + + // events + var oThis = this; + this._range.onchange = function () { + oThis.recalculate(); + if (typeof oThis.onchange == "function") + oThis.onchange(); + }; + + if (Slider.isSupported && oElement) { + this.element.onfocus = Slider.eventHandlers.onfocus; + this.element.onblur = Slider.eventHandlers.onblur; + this.element.onmousedown = Slider.eventHandlers.onmousedown; + this.element.onmouseover = Slider.eventHandlers.onmouseover; + this.element.onmouseout = Slider.eventHandlers.onmouseout; + this.element.onkeydown = Slider.eventHandlers.onkeydown; + this.element.onkeypress = Slider.eventHandlers.onkeypress; + this.element.onmousewheel = Slider.eventHandlers.onmousewheel; + this.handle.onselectstart = + this.element.onselectstart = function () { return false; }; + + this._timer.ontimer = function () { + oThis.ontimer(); + }; + + // extra recalculate for ie + window.setTimeout(function() { + oThis.recalculate(); + }, 1); + } + else { + this.input.onchange = function (e) { + oThis.setValue(oThis.input.value); + }; + } +} + +Slider.eventHandlers = { + + // helpers to make events a bit easier + getEvent: function (e, el) { + if (!e) { + if (el) + e = el.document.parentWindow.event; + else + e = window.event; + } + if (!e.srcElement) { + var el = e.target; + while (el != null && el.nodeType != 1) + el = el.parentNode; + e.srcElement = el; + } + if (typeof e.offsetX == "undefined") { + e.offsetX = e.layerX; + e.offsetY = e.layerY; + } + + return e; + }, + + getDocument: function (e) { + if (e.target) + return e.target.ownerDocument; + return e.srcElement.document; + }, + + getSlider: function (e) { + var el = e.target || e.srcElement; + while (el != null && el.slider == null) { + el = el.parentNode; + } + if (el) + return el.slider; + return null; + }, + + getLine: function (e) { + var el = e.target || e.srcElement; + while (el != null && el.className != "line") { + el = el.parentNode; + } + return el; + }, + + getHandle: function (e) { + var el = e.target || e.srcElement; + var re = /handle/; + while (el != null && !re.test(el.className)) { + el = el.parentNode; + } + return el; + }, + // end helpers + + onfocus: function (e) { + var s = this.slider; + s._focused = true; + s.handle.className = "handle hover"; + }, + + onblur: function (e) { + var s = this.slider + s._focused = false; + s.handle.className = "handle"; + }, + + onmouseover: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + var s = this.slider; + if (e.srcElement == s.handle) + s.handle.className = "handle hover"; + }, + + onmouseout: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + var s = this.slider; + if (e.srcElement == s.handle && !s._focused) + s.handle.className = "handle"; + }, + + onmousedown: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + var s = this.slider; + if (s.element.focus) + s.element.focus(); + + Slider._currentInstance = s; + var doc = s.document; + + if (doc.addEventListener) { + doc.addEventListener("mousemove", Slider.eventHandlers.onmousemove, true); + doc.addEventListener("mouseup", Slider.eventHandlers.onmouseup, true); + } + else if (doc.attachEvent) { + doc.attachEvent("onmousemove", Slider.eventHandlers.onmousemove); + doc.attachEvent("onmouseup", Slider.eventHandlers.onmouseup); + doc.attachEvent("onlosecapture", Slider.eventHandlers.onmouseup); + s.element.setCapture(); + } + + if (Slider.eventHandlers.getHandle(e)) { // start drag + Slider._sliderDragData = { + screenX: e.screenX, + screenY: e.screenY, + dx: e.screenX - s.handle.offsetLeft, + dy: e.screenY - s.handle.offsetTop, + startValue: s.getValue(), + slider: s + }; + } + else { + var lineEl = Slider.eventHandlers.getLine(e); + s._mouseX = e.offsetX + (lineEl ? s.line.offsetLeft : 0); + s._mouseY = e.offsetY + (lineEl ? s.line.offsetTop : 0); + s._increasing = null; + s.ontimer(); + } + }, + + onmousemove: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + + if (Slider._sliderDragData) { // drag + var s = Slider._sliderDragData.slider; + + var boundSize = s.getMaximum() - s.getMinimum(); + var size, pos, reset; + + if (s._orientation == "horizontal") { + size = s.element.offsetWidth - s.handle.offsetWidth; + pos = e.screenX - Slider._sliderDragData.dx; + reset = Math.abs(e.screenY - Slider._sliderDragData.screenY) > 100; + } + else { + size = s.element.offsetHeight - s.handle.offsetHeight; + pos = s.element.offsetHeight - s.handle.offsetHeight - + (e.screenY - Slider._sliderDragData.dy); + reset = Math.abs(e.screenX - Slider._sliderDragData.screenX) > 100; + } + s.setValue(reset ? Slider._sliderDragData.startValue : + s.getMinimum() + boundSize * pos / size); + return false; + } + else { + var s = Slider._currentInstance; + if (s != null) { + var lineEl = Slider.eventHandlers.getLine(e); + s._mouseX = e.offsetX + (lineEl ? s.line.offsetLeft : 0); + s._mouseY = e.offsetY + (lineEl ? s.line.offsetTop : 0); + } + } + + }, + + onmouseup: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + var s = Slider._currentInstance; + var doc = s.document; + if (doc.removeEventListener) { + doc.removeEventListener("mousemove", Slider.eventHandlers.onmousemove, true); + doc.removeEventListener("mouseup", Slider.eventHandlers.onmouseup, true); + } + else if (doc.detachEvent) { + doc.detachEvent("onmousemove", Slider.eventHandlers.onmousemove); + doc.detachEvent("onmouseup", Slider.eventHandlers.onmouseup); + doc.detachEvent("onlosecapture", Slider.eventHandlers.onmouseup); + s.element.releaseCapture(); + } + + if (Slider._sliderDragData) { // end drag + Slider._sliderDragData = null; + } + else { + s._timer.stop(); + s._increasing = null; + } + Slider._currentInstance = null; + }, + + onkeydown: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + //var s = Slider.eventHandlers.getSlider(e); + var s = this.slider; + var kc = e.keyCode; + switch (kc) { + case 33: // page up + s.setValue(s.getValue() + s.getBlockIncrement()); + break; + case 34: // page down + s.setValue(s.getValue() - s.getBlockIncrement()); + break; + case 35: // end + s.setValue(s.getOrientation() == "horizontal" ? + s.getMaximum() : + s.getMinimum()); + break; + case 36: // home + s.setValue(s.getOrientation() == "horizontal" ? + s.getMinimum() : + s.getMaximum()); + break; + case 38: // up + case 39: // right + s.setValue(s.getValue() + s.getUnitIncrement()); + break; + + case 37: // left + case 40: // down + s.setValue(s.getValue() - s.getUnitIncrement()); + break; + } + + if (kc >= 33 && kc <= 40) { + return false; + } + }, + + onkeypress: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + var kc = e.keyCode; + if (kc >= 33 && kc <= 40) { + return false; + } + }, + + onmousewheel: function (e) { + e = Slider.eventHandlers.getEvent(e, this); + var s = this.slider; + if (s._focused) { + s.setValue(s.getValue() + e.wheelDelta / 120 * s.getUnitIncrement()); + // windows inverts this on horizontal sliders. That does not + // make sense to me + return false; + } + } +}; + + + +Slider.prototype.classNameTag = "dynamic-slider-control"; + +Slider.prototype.setValue = function (v) { + this._range.setValue(v); + this.input.value = this.getValue(); +}; + +Slider.prototype.getValue = function () { + return this._range.getValue(); +}; + +Slider.prototype.setMinimum = function (v) { + this._range.setMinimum(v); + this.input.value = this.getValue(); +}; + +Slider.prototype.getMinimum = function () { + return this._range.getMinimum(); +}; + +Slider.prototype.setMaximum = function (v) { + this._range.setMaximum(v); + this.input.value = this.getValue(); +}; + +Slider.prototype.getMaximum = function () { + return this._range.getMaximum(); +}; + +Slider.prototype.setUnitIncrement = function (v) { + this._unitIncrement = v; +}; + +Slider.prototype.getUnitIncrement = function () { + return this._unitIncrement; +}; + +Slider.prototype.setBlockIncrement = function (v) { + this._blockIncrement = v; +}; + +Slider.prototype.getBlockIncrement = function () { + return this._blockIncrement; +}; + +Slider.prototype.getOrientation = function () { + return this._orientation; +}; + +Slider.prototype.setOrientation = function (sOrientation) { + if (sOrientation != this._orientation) { + if (Slider.isSupported && this.element) { + // add class name tag to class name + this.element.className = this.element.className.replace(this._orientation, + sOrientation); + } + this._orientation = sOrientation; + this.recalculate(); + + } +}; + +Slider.prototype.recalculate = function() { + if (!Slider.isSupported || !this.element) return; + + var w = this.element.offsetWidth; + var h = this.element.offsetHeight; + var hw = this.handle.offsetWidth; + var hh = this.handle.offsetHeight; + var lw = this.line.offsetWidth; + var lh = this.line.offsetHeight; + + // this assumes a border-box layout + + if (this._orientation == "horizontal") { + this.handle.style.left = (w - hw) * (this.getValue() - this.getMinimum()) / + (this.getMaximum() - this.getMinimum()) + "px"; + this.handle.style.top = (h - hh) / 2 + "px"; + + this.line.style.top = (h - lh) / 2 + "px"; + this.line.style.left = hw / 2 + "px"; + //this.line.style.right = hw / 2 + "px"; + this.line.style.width = Math.max(0, w - hw - 2)+ "px"; + this.line.firstChild.style.width = Math.max(0, w - hw - 4)+ "px"; + } + else { + this.handle.style.left = (w - hw) / 2 + "px"; + this.handle.style.top = h - hh - (h - hh) * (this.getValue() - this.getMinimum()) / + (this.getMaximum() - this.getMinimum()) + "px"; + + this.line.style.left = (w - lw) / 2 + "px"; + this.line.style.top = hh / 2 + "px"; + this.line.style.height = Math.max(0, h - hh - 2) + "px"; //hard coded border width + //this.line.style.bottom = hh / 2 + "px"; + this.line.firstChild.style.height = Math.max(0, h - hh - 4) + "px"; //hard coded border width + } +}; + +Slider.prototype.ontimer = function () { + var hw = this.handle.offsetWidth; + var hh = this.handle.offsetHeight; + var hl = this.handle.offsetLeft; + var ht = this.handle.offsetTop; + + if (this._orientation == "horizontal") { + if (this._mouseX > hl + hw && + (this._increasing == null || this._increasing)) { + this.setValue(this.getValue() + this.getBlockIncrement()); + this._increasing = true; + } + else if (this._mouseX < hl && + (this._increasing == null || !this._increasing)) { + this.setValue(this.getValue() - this.getBlockIncrement()); + this._increasing = false; + } + } + else { + if (this._mouseY > ht + hh && + (this._increasing == null || !this._increasing)) { + this.setValue(this.getValue() - this.getBlockIncrement()); + this._increasing = false; + } + else if (this._mouseY < ht && + (this._increasing == null || this._increasing)) { + this.setValue(this.getValue() + this.getBlockIncrement()); + this._increasing = true; + } + } + + this._timer.start(); +};
\ No newline at end of file |