Class ContextMenuTool

You do not normally need to create an instance of this tool because one already exists as the ToolManager.contextMenuTool, which you can modify.

The Tool.name of this tool is "ContextMenu".

Gets or sets the currently showing context menu, or null if there is none. This is typically only set in showContextMenu and not by the user. It is also typically set to null in hideContextMenu.

Gets or sets the GraphObject found at the mouse point that has a context menu. This property remembers the result returned by findObjectWithContextMenu if it is a GraphObject. This value is passed to showContextMenu as the second argument. The value will be null if the context menu is for the diagram rather than for a particular GraphObject.

Gets or sets the HTMLInfo or Adornment that acts as the default touch context menu. On touch devices, this context menu will appear even there is no context menu defined.

You can disable this functionality by setting this property to null.

By default shows a set of HTML elements acting as a context menu.

This read-only property returns the original mouse-down point in document coordinates.

Return true if it's a single mouse right click that hasn't moved Tool.isBeyondDragSize and that is on a GraphObject with a GraphObject.contextMenu. This is also true if the mouse right click is in the diagram background and the diagram's Diagram.contextMenu is non-null.

On touch devices, a special default context menu will appear even if no object with a context menu is found.

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

Do nothing, activation is special and relies on doMouseUp

Activate this but also execute the normal behavior that would happen on a mouse-up if this tool is in the ToolManager.mouseDownTools list. Perform ActionTool.doMouseDown if a ContextMenuButton was hit.

Handle mouse-enter, mouse-over, and mouse-leave events, as well as tooltips.

If there is something found by findObjectWithContextMenu, call showContextMenu with that object's GraphObject.contextMenu or the Diagram.contextMenu.

Once a context menu is being shown, if a click occurs on a part of the context menu, call Tool.standardMouseClick. Otherwise if the click occurs elsewhere, just stop this tool. Unlike most tools, the first mouse-up should not stop this tool.

Find a GraphObject at the current mouse point with a GraphObject.contextMenu, or return the Diagram if there is a Diagram.contextMenu.

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

Hide any context menu.

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

This is the HTMLInfo.hide method for the defaultTouchContextMenu.

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

This is called by showContextMenu to position the context menu within the viewport. It normally goes just below the cursor. But if the mouse is too close to the right edge or the bottom edge of the viewport, it is positioned left and/or above the cursor.

This method only operates if the context menu, an Adornment, does not have a Adornment.placeholder. When there is a Placeholder in the context menu, that Adornment is automatically positioned so that the Placeholder is positioned at the adorned object, the second argument to this method.

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

If you override this method to position the context menu, the context menu has already been measured but not arranged, so you can use its GraphObject.measuredBounds width and height but not its GraphObject.actualBounds.

Show an Adornment or HTMLInfo as a context menu.

This method is called by the context click (Tool.doMouseDown) and CommandHandler.showContextMenu. If you want to programmatically show a context menu for a particular GraphObject or for the whole diagram, do not call this method, which only does one small piece of the process of bringing up a context menu. Instead call CommandHandler.showContextMenu, which will start this tool and eventually call this method and handle additional input events.

For Adornment context menus: If the object's containing Part is data-bound, this sets the contextmenu's Part.data to the same value. The Adornment.adornedObject property is set to the GraphObject for which the menu is being shown.

This method sets the currentContextMenu.

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

This is the HTMLInfo.show method for the defaultTouchContextMenu.

If the object's containing Part is data-bound, set the contextmenu's Part.data to the same value. The Adornment.adornedObject property is set to the GraphObject for which the menu is being shown.

The menu carries some default CSS styling and uses the following CSS classes:

• goCXforeground for the DIV containing the buttons
• goCXbackground for the darker DIV behind the context menu
• goCXul for the HTML ul items
• goCXli for the HTML li tag items
• goCXa for the HTML a tag items

This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.