--- /dev/null
+/* ************************************************************************
+
+ qooxdoo - the new era of web development
+
+ http://qooxdoo.org
+
+ Copyright:
+ 2007 Visionet GmbH, http://www.visionet.de
+
+ License:
+ LGPL: http://www.gnu.org/licenses/lgpl.html
+ EPL: http://www.eclipse.org/org/documents/epl-v10.php
+ See the LICENSE file in the project's top-level directory for details.
+
+ Authors:
+ * Dietrich Streifert (level420)
+
+************************************************************************ */
+
+/* ************************************************************************
+
+#module(uploadwidget_ui_io)
+
+************************************************************************ */
+
+/**
+ * An upload button which allows selection of a file through the browser fileselector.
+ *
+ */
+qx.Class.define("uploadwidget.UploadButton",
+{
+ extend : qx.ui.form.Button,
+
+ /*
+ *****************************************************************************
+ CONSTRUCTOR
+ *****************************************************************************
+ */
+
+ construct : function(name, text, icon, iconWidth, iconHeight, flash)
+ {
+ this.base(arguments, text, icon, iconWidth, iconHeight, flash);
+ // This state is needed for proper button CSS themeing
+ this.addState( "rwt_PUSH" );
+ this.setAppearance( "button" );
+ if(name) {
+ this.setName(name);
+ }
+
+ },
+
+
+ /*
+ *****************************************************************************
+ PROPERTIES
+ *****************************************************************************
+ */
+
+ properties :
+ {
+ /**
+ * The name which is assigned to the form
+ */
+ name :
+ {
+ check : "String",
+ init : "",
+ apply : "_applyName"
+ },
+
+ /**
+ * The value which is assigned to the form
+ */
+ value :
+ {
+ check : "String",
+ init : "",
+ apply : "_applyValue",
+ event : "changeValue"
+ }
+ },
+
+ /*
+ *****************************************************************************
+ MEMBERS
+ *****************************************************************************
+ */
+
+ members :
+ {
+ /*
+ ---------------------------------------------------------------------------
+ MODIFIERS
+ ---------------------------------------------------------------------------
+ */
+
+ /**
+ * after the button element is present create the input file tag
+ *
+ * @param value {Object} new dom element
+ * @param old {Object} old one
+ * @type member
+ * @return {void}
+ */
+ _applyElement : function (value, old)
+ {
+ this.base(arguments, value, old);
+ this._createInputFileTag(value);
+ },
+
+
+ /**
+ * Modifies the value property of the hidden input type=file element.
+ * Only an empty string is accepted for clearing out the value of the
+ * selected file.
+ *
+ * As a special case for IE the hidden input element is recreated because
+ * setting the value is generally not allowed in IE.
+ *
+ * @type member
+ * @param value {var} Current value
+ * @param old {var} Previous value
+ */
+ _applyValue : function(value, old) {
+ if(this._valueInputOnChange) {
+ delete this._valueInputOnChange;
+ }
+ else {
+ if (!value || value == '') {
+ if (qx.core.Variant.isSet("qx.client", "mshtml")) {
+ this._createInputFileTag(this.getElement());
+ }
+ else {
+ this._input.value = '';
+ }
+ }
+ else {
+ throw new Error("Unable to set value to non null or non empty!");
+ }
+ }
+ },
+
+
+ /**
+ * Modifies the name property of the hidden input type=file element.
+ *
+ * @type member
+ * @param value {var} Current value
+ * @param old {var} Previous value
+ */
+ _applyName : function(value, old) {
+ if(this._input) {
+ this._input.name = propValue;
+ }
+ },
+
+
+ /**
+ * Apply the enabled property.
+ *
+ * @type member
+ * @param value {var} Current value
+ * @param old {var} Previous value
+ */
+ _applyEnabled : function(value, old)
+ {
+ if (this._input) {
+ this._input.disabled = value===false;
+ }
+
+ return this.base(arguments, value, old);
+ },
+
+ /*
+ ---------------------------------------------------------------------------
+ EVENT-HANDLER
+ ---------------------------------------------------------------------------
+ */
+
+
+ /**
+ * Create an input type=file element, and set the onchange event handler which
+ * fires if the user selected a file with the fileselector.
+ *
+ * @type member
+ * @param e {Event|null} appear event
+ * @return {void}
+ */
+ _createInputFileTag : function(elem)
+ {
+ if(this._input)
+ {
+ this._input.name += "_tmp_";
+ if (this._input.parentNode) {
+ this._input.parentNode.removeChild(this._input);
+ }
+ this._input = null;
+ }
+
+ var input = this._input = document.createElement("input");
+ input.type = "file";
+ input.name = this.getName();
+ input.size = "1"; // make the text area as small as possible
+ input.style.position = "absolute";
+ input.style.top = "-2px"; // make sure to cover the whole area
+ input.style.left = "-100px";
+ input.style.height = "27px";
+ input.style.fontSize = "35px"; // previous value 60 was to small for some systems (depends on used font-family)
+ var clipRight = 300 + this.getWidthValue(); //use variable to avoid string concatenation instead of adding
+ input.style.clip = "rect(auto, " + clipRight + "px, auto, 100px)";
+ input.style.zIndex = "100";
+ input.style.cursor = "pointer";
+ input.style.filter = "alpha(opacity=0)";
+ input.style.opacity = "0";
+ input.style.MozOutlinestyle = "none";
+ input.style.hidefocus = "true";
+ input.disabled = this.getEnabled() === false;
+
+ var _this = this;
+ input.onchange = function(ev) { return _this._onChange(ev); };
+
+ elem.appendChild(input);
+ },
+
+
+ /**
+ * Handle the onchange event of the hidden input type=file element
+ *
+ * @type member
+ * @param e {Event} TODOC
+ * @return {void}
+ */
+ _onChange : function(e) {
+ // IE8 returns sth like "C:\fakepath\..." which should not be displayed.
+ // Cut off everyhting before the "\", like Firefox does automatically, to have
+ // an identical behaviour in all browsers.
+ var inputStr = this._input.value;
+ if (inputStr) {
+ if (inputStr.indexOf("\\") != -1) {
+ inputStr = inputStr.substr(inputStr.lastIndexOf("\\") + 1);
+ } else if (inputStr.indexOf("/") != -1) {
+ inputStr = inputStr.substr(inputStr.lastIndexOf("/") + 1);
+ }
+
+ this._valueInputOnChange = true;
+ this.setValue(inputStr);
+ }
+ }
+
+ },
+
+
+ /*
+ *****************************************************************************
+ DESTRUCTOR
+ *****************************************************************************
+ */
+
+ destruct : function()
+ {
+ if(this._input) {
+ if (this._input.parentNode) {
+ this._input.parentNode.removeChild(this._input);
+ }
+ this._input.onchange = null;
+ this._input = null;
+ }
+ }
+
+});
projects / lgpl / argeo-commons.git / blobdiff