/**
* Called whenever anything on the workspace changes.
* Prevent mismatched types.
* @param {!Abstract} e Change event.
* @this Blockly.Block
*/
protected override void onchange(Events.Abstract e)
{
var blockA = this.getInputTargetBlock("THEN");
var blockB = this.getInputTargetBlock("ELSE");
var parentConnection = this.outputConnection.targetConnection;
// Disconnect blocks that existed prior to this change if they don't match.
if ((blockA != null || blockB != null) && parentConnection != null)
{
for (var i = 0; i < 2; i++)
{
var block = (i == 1) ? blockA : blockB;
if (block != null && !block.outputConnection.checkType_(parentConnection))
{
// Ensure that any disconnections are grouped with the causing event.
Events.setGroup(e.group);
if (parentConnection == this.prevParentConnection_)
{
this.unplug();
parentConnection.getSourceBlock().bumpNeighbours_();
}
else
{
block.unplug();
block.bumpNeighbours_();
}
Events.setGroup(false);
}
}
}
this.prevParentConnection_ = parentConnection;
}
/// <summary>
/// Resize the editor and the underlying block to fit the text.
/// </summary>
protected void resizeEditor_(Events.Abstract e = null)
{
var div = WidgetDiv.DIV;
var bBox = this.fieldGroup_.getBBox();
div.Style.Width = bBox.width * this.workspace_.scale + "px";
div.Style.Height = bBox.height * this.workspace_.scale + "px";
var xy = this.getAbsoluteXY_();
// In RTL mode block fields and LTR input fields the left edge moves,
// whereas the right edge is fixed. Reposition the editor.
if (this.sourceBlock_.RTL)
{
var borderBBox = this.getScaledBBox_();
xy.x += borderBBox.width;
xy.x -= div.OffsetWidth;
}
// Shift by a few pixels to line up exactly.
xy.y += 1;
if (goog.userAgent.GECKO && WidgetDiv.DIV.Style.Top != null)
{
// Firefox mis-reports the location of the border by a pixel
// once the WidgetDiv is moved into position.
xy.x -= 1;
xy.y -= 1;
}
if (goog.userAgent.WEBKIT)
{
xy.y -= 3;
}
div.Style.Left = xy.x + "px";
div.Style.Top = xy.y + "px";
}
/// <summary>
/// Enable/disable a block depending on whether it is properly connected.
/// Use this on applications where all blocks should be connected to a top block.
/// Recommend setting the 'disable' option to 'false' in the config so that
/// users don't try to reenable disabled orphan blocks.
/// </summary>
/// <param name="ev">Custom data for event.</param>
public static void disableOrphans(Events.Abstract ev)
{
if (ev.type == Events.MOVE ||
ev.type == Events.CREATE)
{
Events.disable();
var workspace = Workspace.getById(ev.workspaceId);
var block = workspace.getBlockById(ev.blockId);
if (block != null)
{
if (block.getParent() != null && !block.getParent().disabled)
{
var children = block.getDescendants();
foreach (var child in children)
{
child.setDisabled(false);
}
}
else if ((block.outputConnection != null || block.previousConnection != null) &&
Core.dragMode_ == Core.DRAG_NONE)
{
do
{
block.setDisabled(true);
block = block.getNextBlock();
} while (block != null);
}
}
Events.enable();
}
}
/**
* Called whenever anything on the workspace changes.
* Prevent mismatched types from being compared.
* @param {!Abstract} e Change event.
* @this Blockly.Block
*/
protected override void onchange(Events.Abstract e)
{
var blockA = this.getInputTargetBlock("A");
var blockB = this.getInputTargetBlock("B");
// Disconnect blocks that existed prior to this change if they don't match.
if (blockA != null && blockB != null &&
!blockA.outputConnection.checkType_(blockB.outputConnection))
{
// Mismatch between two inputs. Disconnect previous and bump it away.
// Ensure that any disconnections are grouped with the causing event.
Events.setGroup(e.group);
for (var i = 0; i < this.prevBlocks_.Length; i++)
{
var block = this.prevBlocks_[i];
if (block == blockA || block == blockB)
{
block.unplug();
block.bumpNeighbours_();
}
}
Events.setGroup(false);
}
this.prevBlocks_[0] = blockA;
this.prevBlocks_[1] = blockB;
}
/// <summary>
/// Create a custom event and fire it.
/// </summary>
/// <param name="ev">Custom data for event.</param>
public static void fire(Events.Abstract ev)
{
if (!Events.isEnabled())
{
return;
}
if (Events.FIRE_QUEUE_.Length == 0)
{
// First event added; schedule a firing of the event queue.
Window.SetTimeout(Events.fireNow_, 0);
}
Events.FIRE_QUEUE_.Push(ev);
}
/**
* Called whenever anything on the workspace changes.
* Add warning if this flow block is not nested inside a loop.
* @param {!Abstract} e Change event.
* @this Blockly.Block
*/
protected override void onchange(Events.Abstract e)
{
if (((WorkspaceSvg)this.workspace).isDragging())
{
return; // Don't change state at the start of a drag.
}
var legal = false;
// Is the block nested in a procedure?
var block = (Block)this;
do
{
if (Array.IndexOf(this.FUNCTION_TYPES, block.type) != -1)
{
legal = true;
break;
}
block = block.getSurroundParent();
} while (block != null);
if (legal)
{
// If needed, toggle whether this block has a return value.
if (block.type == ProceduresDefnoreturnBlock.type_name && this.hasReturnValue_)
{
this.removeInput("VALUE");
this.appendDummyInput("VALUE")
.appendField(Msg.PROCEDURES_DEFRETURN_RETURN);
this.hasReturnValue_ = false;
}
else if (block.type == ProceduresDefreturnBlock.type_name && !this.hasReturnValue_)
{
this.removeInput("VALUE");
this.appendValueInput("VALUE")
.appendField(Msg.PROCEDURES_DEFRETURN_RETURN);
this.hasReturnValue_ = true;
}
this.setWarningText(null);
if (!this.isInFlyout)
{
this.setDisabled(false);
}
}
else
{
this.setWarningText(Msg.PROCEDURES_IFRETURN_WARNING);
if (!this.isInFlyout && !this.getInheritedDisabled())
{
this.setDisabled(true);
}
}
}
/// <summary>
/// Fire a change ev.
/// </summary>
/// <param name="ev">Event to fire.</param>
public void fireChangeListener(Events.Abstract ev)
{
if (ev.recordUndo)
{
this.undoStack_.Push(ev);
this.redoStack_.Clear();
while (this.undoStack_.Length > this.MAX_UNDO)
{
this.undoStack_.Shift();
}
}
for (var i = 0; i < this.listeners_.Length; i++)
{
this.listeners_[i](ev);
}
}
/**
* Called whenever anything on the workspace changes.
* Add warning if this flow block is not nested inside a loop.
* @param {!Abstract} e Change event.
* @this Blockly.Block
*/
protected override void onchange(Events.Abstract e)
{
if (((WorkspaceSvg)this.workspace).isDragging())
{
return; // Don't change state at the start of a drag.
}
var legal = false;
// Is the block nested in a loop?
var block = (Block)this;
do
{
if (Array.IndexOf(this.LOOP_TYPES, block.type) != -1)
{
legal = true;
break;
}
block = block.getSurroundParent();
} while (block != null);
if (legal)
{
this.setWarningText(null);
if (!this.isInFlyout)
{
this.setDisabled(false);
}
}
else
{
this.setWarningText(Msg.CONTROLS_FLOW_STATEMENTS_WARNING);
if (!this.isInFlyout && !this.getInheritedDisabled())
{
this.setDisabled(true);
}
}
}
/**
* Procedure calls cannot exist without the corresponding procedure
* definition. Enforce this link whenever an event is fired.
* @this Blockly.Block
*/
protected override void onchange(Events.Abstract e)
{
if (this.workspace == null || this.workspace.isFlyout)
{
// Block is deleted or is in a flyout.
return;
}
if (e.type == Events.CREATE &&
Array.IndexOf(((Events.Create)e).ids, this.id) != -1)
{
// Look for the case where a procedure call was created (usually through
// paste) and there is no matching definition. In this case, create
// an empty definition block with the correct signature.
var name = this.getProcedureCall();
var def = Core.Procedures.getDefinition(name, this.workspace);
if (def != null && (def.type != this.defType_ ||
JSON.Stringify(def.arguments_.ToArray()) != JSON.Stringify(this.arguments_)))
{
// The signatures don't match.
def = null;
}
if (def == null)
{
Events.setGroup(e.group);
/**
* Create matching definition block.
* <xml>
* <block type="procedures_defreturn" x="10" y="20">
* <mutation name="test">
* <arg name="x"></arg>
* </mutation>
* <field name="NAME">test</field>
* </block>
* </xml>
*/
var xml = goog.dom.createDom("xml");
var block = goog.dom.createDom("block");
block.SetAttribute("type", this.defType_);
var xy = this.getRelativeToSurfaceXY();
var x = xy.x + Core.SNAP_RADIUS * (this.RTL ? -1 : 1);
var y = xy.y + Core.SNAP_RADIUS * 2;
block.SetAttribute("x", x.ToString());
block.SetAttribute("y", y.ToString());
var mutation = this.mutationToDom();
block.AppendChild(mutation);
var field = goog.dom.createDom("field");
field.SetAttribute("name", "NAME");
field.AppendChild(Document.CreateTextNode(this.getProcedureCall()));
block.AppendChild(field);
xml.AppendChild(block);
Xml.domToWorkspace(xml, this.workspace);
Events.setGroup(false);
}
}
else if (e.type == Events.DELETE)
{
// Look for the case where a procedure definition has been deleted,
// leaving this block (a procedure call) orphaned. In this case, delete
// the orphan.
var name = this.getProcedureCall();
var def = Core.Procedures.getDefinition(name, this.workspace);
if (def == null)
{
Events.setGroup(e.group);
this.dispose(true, false);
Events.setGroup(false);
}
}
}