285 lines
10 KiB
XML
285 lines
10 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- ***** BEGIN LICENSE BLOCK *****
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- Version: MPL 1.1/GPL 2.0/LGPL 2.1
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-
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- The contents of this file are subject to the Mozilla Public License Version
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- 1.1 (the "License"); you may not use this file except in compliance with
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- the License. You may obtain a copy of the License at
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- http://www.mozilla.org/MPL/
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-
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- Software distributed under the License is distributed on an "AS IS" basis,
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- WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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- for the specific language governing rights and limitations under the
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- License.
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-
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- The Original Code is Mozilla XForms support.
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-
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- The Initial Developer of the Original Code is
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- Novell, Inc.
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- Portions created by the Initial Developer are Copyright (C) 2005
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- the Initial Developer. All Rights Reserved.
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-
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- Contributor(s):
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- Allan Beaufour <abeaufour@novell.com>
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- Alexander Surkov <surkov.alexander@gmail.com>
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- Merle Sterling <msterlin@us.ibm.com>
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-
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- Alternatively, the contents of this file may be used under the terms of
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- either the GNU General Public License Version 2 or later (the "GPL"), or
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- the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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- in which case the provisions of the GPL or the LGPL are applicable instead
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- of those above. If you wish to allow use of your version of this file only
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- under the terms of either the GPL or the LGPL, and not to allow others to
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- use your version of this file under the terms of the MPL, indicate your
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- decision by deleting the provisions above and replace them with the notice
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- and other provisions required by the GPL or the LGPL. If you do not delete
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- the provisions above, a recipient may use your version of this file under
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- the terms of any one of the MPL, the GPL or the LGPL.
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-
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- ***** END LICENSE BLOCK ***** -->
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<bindings xmlns="http://www.mozilla.org/xbl"
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xmlns:html="http://www.w3.org/1999/xhtml">
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<!-- RANGE: BASE
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This binding is base for xforms range controls. It assumes successors
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bindings implement getElementControl() method that returns the object:
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{
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get/set value(); // get/set value
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set readonly(); // makes range disabled
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get/set start(); // get/set @start attribute
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get/set end(); // get/set @end attribute
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get/set step(); // get/set @step attribute
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focus() // set the focus
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set(); // set start, end, step, value
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}
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Successor bindings should override isInRange and adjustRangeValues to do
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what is appropriate for the particular datatype they use.
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-->
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<binding id="xformswidget-range-base"
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extends="chrome://xforms/content/xforms.xml#xformswidget-base">
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<implementation>
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<method name="refresh">
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<body>
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<![CDATA[
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// The start/end/step attrs are all optional and if any are omitted
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// we need to adjust their values.
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this.adjustRangeValues(this.start, this.end, this.step);
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// Start > End is an error.
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if (this.start > this.end) {
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this.delegate.reportError("rangeBeginEndError");
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return;
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}
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this.control.readonly = this.accessors.isReadonly();
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var value = this.accessors.getValue();
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var inrange = this.isInRange(value);
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this.accessors.setInRange(inrange);
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this.control.set(this.start, this.end, this.step, value);
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]]>
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</body>
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</method>
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<!-- Determine whether or not the current value is between the start
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and end values for the range so we can dispatch xforms-in-range
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or xforms-out-of-range events.
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-->
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<method name="isInRange">
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<body>
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return true;
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</body>
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</method>
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<!-- The start/end/step attrs are all optional and if any are omitted
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we need to adjust their values.
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-->
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<method name="adjustRangeValues">
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<body>
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return true;
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</body>
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</method>
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<method name="focus">
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<body>
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this.control.focus();
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</body>
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</method>
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<method name="getCurrentValue">
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<body>
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var value = this.control.value;
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return isNaN(value) ? "" : value;
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</body>
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</method>
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<property name="start"
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onget="return this.control.start;"
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onset="this.setAttribute('start', val); this.control.start = val;"/>
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<property name="end"
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onget="return this.control.end;"
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onset="this.setAttribute('end', val); this.control.end = val;"/>
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<property name="step"
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onget="return this.control.step;"
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onset="this.setAttribute('step', val); this.control.step = val;"/>
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<property name="incremental">
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<getter>
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return this.getAttribute("incremental") == "true";
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</getter>
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<setter>
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if (val)
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this.setAttribute("incremental", "true");
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else
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this.removeAttribute("incremental");
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</setter>
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</property>
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<property name="accessors" readonly="true">
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<getter>
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<![CDATA[
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if (!this._accessors && this.delegate) {
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this._accessors = this.delegate.getXFormsAccessors().
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QueryInterface(Components.interfaces.nsIXFormsRangeAccessors);
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}
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return this._accessors;
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]]>
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</getter>
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</property>
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<method name="updateInstanceData">
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<parameter name="aIncremental"/>
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<body>
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if (!this.accessors.hasBoundNode())
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return;
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if (!aIncremental || this.incremental)
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this.accessors.setValue(this.control.value);
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</body>
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</method>
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</implementation>
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</binding>
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<!-- RANGE: <NUMBER>
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This binding is base for xforms range controls with numeric types.
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Successor bindings should implement a getElementControl() method
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that returns numeric types.
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-->
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<binding id="xformswidget-range-numeric-base"
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extends="chrome://xforms/content/range.xml#xformswidget-range-base">
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<implementation implements="nsIAccessibleProvider">
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<!-- Any range type that uses a slider widget as the element control
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should return Components.interfaces.nsIAccessibleProvider.XFormsRange
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as its accessible type.
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-->
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<property name="accessibleType" readonly="true">
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<getter>
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return Components.interfaces.nsIAccessibleProvider.XFormsSliderRange;
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</getter>
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</property>
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<method name="isInRange">
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<parameter name="aValue"/>
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<body>
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<![CDATA[
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var value = parseFloat(aValue);
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if (isNaN(value))
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return false;
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return value >= this.start && value <= this.end;
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]]>
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</body>
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</method>
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<!-- A range control with numeric types is currently implemented as a
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slider and a slider with a large number of steps does not look
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nice or perform very well; therefore, we limit the maximum number
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of steps to a reasonable value of 20. The start/end/step values
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will be adjusted accordingly if any are omitted.
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-->
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<method name="adjustRangeValues">
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<parameter name="aStart"/>
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<parameter name="aEnd"/>
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<parameter name="aStep"/>
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<body>
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<![CDATA[
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if (isNaN(aStep)) {
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// Step is not specified and will depend on the values of start
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// and end (which also may not be specified).
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if (isNaN(aStart) && isNaN(aEnd)) {
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// None of the range attributes are specified! Show a default
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// slider with 20 steps.
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this.start = 0;
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this.end = 20;
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this.step = 1;
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} else if (!isNaN(aStart) && isNaN(aEnd)) {
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// Start is specified but End is not. Set end to start + 20 with
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// a default step of 1 to maintain our maximum range of 20 steps.
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this.start = aStart;
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this.end = this.start + 20;
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this.step = 1;
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} else if (isNaN(aStart) && !isNaN(aEnd)) {
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// End is specified but Start is not. Use a default step of 1
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// and adjust start to maintain the maximum range of 20 steps.
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this.start = aEnd - 20;
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this.end = aEnd;
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this.step = 1;
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} else {
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// Both Start and End are specified. Calculate a step value
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// that will maintain our maximum range of 20 steps.
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this.start = aStart;
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this.end = aEnd;
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this.step = Math.round((aEnd - aStart) / 20);
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}
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} else {
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// Step is specified. Adjust start and end to maintain our
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// maximum range of 20 steps.
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if (isNaN(aStart) && isNaN(aEnd)) {
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// Neither Start nor End is specified. Calculate values for start
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// and end such that the slider has a maximum of 20 steps of size
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// aStep.
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this.start = 0;
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this.end = this.start + (aStep * 20);
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this.step = aStep;
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} else if (!isNaN(aStart) && isNaN(aEnd)) {
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// Begin is specified but End is not. Adjust end such that we
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// have 20 steps of size aStep between start and end.
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this.start = aStart;
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this.end = this.start + (aStep * 20);
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this.step = aStep;
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} else if (isNaN(aStart) && !isNaN(aEnd)) {
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// End is specified but Start is not. Adjust start such that we
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// have 20 steps of size aStep between start and end.
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this.start = aEnd - (aStep * 20);
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this.end = aEnd;
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this.step = aStep;
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} else {
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// Both Start and End are specified, but the specified Step
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// value may not be suitable for maintaining the maximum
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// range of 20 steps.
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if ((aEnd - aStart) / aStep > 20) {
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// Honor the specified start and end values, but adjust
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// the Step value.
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this.step = Math.round((aEnd - aStart) / 20);
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} else {
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this.step = aStep;
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}
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this.start = aStart;
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this.end = aEnd;
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}
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}
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]]>
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</body>
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</method>
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</implementation>
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</binding>
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</bindings>
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