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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2007 Derrell Lipman
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:
* Derrell Lipman (derrell)
************************************************************************ */
/* ************************************************************************
#module(table)
#require(qx.ui.table.DefaultResizeBehavior)
************************************************************************ */
/**
* A table column model that automagically resizes columns based on a
* selected behavior.
*
* @see qx.ui.table.TableColumnModel
*/
qx.OO.defineClass("qx.ui.table.ResizeTableColumnModel",
qx.ui.table.TableColumnModel,
function()
{
qx.ui.table.TableColumnModel.call(this);
// We don't want to recursively call ourself based on our resetting of
// column sizes. Track when we're resizing.
this._bInProgress = false;
// Track when the table has appeared. We want to ignore resize events until
// then since we won't be able to determine the available width anyway.
this._bAppeared = false;
});
/*
* The behavior to use.
*
* The provided behavior must extend {link @AbstractResizeBehavior} and
* implement the <i>onAppear</i>, <i>onWindowResize</i>,
* <i>onColumnWidthChanged</i> and <i>onVisibilityChanged</i>methods.
*/
qx.OO.addProperty(
{
name : "behavior",
type : "object",
defaultValue : new qx.ui.table.DefaultResizeBehavior()
});
// Behavior modifier
qx.Proto._modifyBehavior = function(propValue, propOldValue, propData)
{
// Tell the new behavior how many columns there are
this.getBehavior()._setNumColumns(this._columnDataArr.length);
return true;
};
/**
* Initializes the column model.
*
* @param colCount {Integer}
* The number of columns the model should have.
*
* @param table {qx.ui.table.Table}
* The table which this model is used for. This allows us access to other
* aspects of the table, as the <i>behavior</i> sees fit.
*/
qx.Proto.init = function(numColumns, table)
{
// Call our superclass
qx.ui.table.TableColumnModel.prototype.init.call(this, numColumns);
// Save the table so we can get at its features, as necessary.
this._table = table;
// We'll do our column resizing when the table appears, ...
table.addEventListener("appear", this._onappear, this);
// ... when the window is resized, ...
var d = qx.ui.core.ClientDocument.getInstance();
d.addEventListener("windowresize", this._onwindowresize, this);
// ... when columns are resized, ...
this.addEventListener("widthChanged", this._oncolumnwidthchanged, this);
// ... and when a column visibility changes.
this.addEventListener("visibilityChanged", this._onvisibilitychanged, this);
// We want to manipulate the button visibility menu
this._table.addEventListener("columnVisibilityMenuCreateEnd",
this._addResetColumnWidthButton,
this);
// Tell the behavior how many columns there are
this.getBehavior()._setNumColumns(numColumns);
};
/**
* Reset the column widths to their "onappear" defaults.
*
* @param event {qx.event.type.DataEvent}
* The "columnVisibilityMenuCreateEnd" event indicating that the menu is
* being generated. The data is a map containing propeties <i>table</i> and
* <i>menu</i>.
*/
qx.Proto._addResetColumnWidthButton = function(event)
{
var data = event.getData();
var menu = data.menu;
var o;
var Am = qx.manager.object.AliasManager;
var icon = Am.getInstance().resolvePath("icon/16/actions/view-refresh.png");
// Add a separator between the column names and our reset button
o= new qx.ui.menu.Separator();
menu.add(o);
// Add a button to reset the column widths
o = new qx.ui.menu.Button("Reset column widths", icon);
menu.add(o);
o.addEventListener("execute", this._onappear, this);
};
/**
* Event handler for the "onappear" event.
*
* @param event {qx.event.type.Event}
* The "onappear" event object.
*/
qx.Proto._onappear = function(event)
{
// Is this a recursive call?
if (this._bInProgress)
{
// Yup. Ignore it.
return;
}
this._bInProgress = true;
this.debug("onappear");
this.getBehavior().onAppear(this, event);
this._bInProgress = false;
this._bAppeared = true;
};
/**
* Event handler for the "onwindowresize" event.
*
* @param event {qx.event.type.Event}
* The "onwidowresize" event object.
*/
qx.Proto._onwindowresize = function(event)
{
// Is this a recursive call or has the table not yet been rendered?
if (this._bInProgress || ! this._bAppeared)
{
// Yup. Ignore it.
return;
}
this._bInProgress = true;
this.debug("onwindowresize");
this.getBehavior().onWindowResize(this, event);
this._bInProgress = false;
};
/**
* Event handler for the "oncolumnwidthchanged" event.
*
* @param event {qx.event.type.DataEvent}
* The "oncolumnwidthchanged" event object.
*/
qx.Proto._oncolumnwidthchanged = function(event)
{
// Is this a recursive call or has the table not yet been rendered?
if (this._bInProgress || ! this._bAppeared)
{
// Yup. Ignore it.
return;
}
this._bInProgress = true;
this.debug("oncolumnwidthchanged");
this.getBehavior().onColumnWidthChanged(this, event);
this._bInProgress = false;
};
/**
* Event handler for the "onvisibilitychangned" event.
*
* @param event {qx.event.type.DataEvent}
* The "onvisibilitychanged" event object.
*/
qx.Proto._onvisibilitychanged = function(event)
{
// Is this a recursive call or has the table not yet been rendered?
if (this._bInProgress || ! this._bAppeared)
{
// Yup. Ignore it.
return;
}
this._bInProgress = true;
this.debug("onvisibilitychanged");
this.getBehavior().onVisibilityChanged(this, event);
this._bInProgress = false;
};
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