/// <summary>
/// Size the SVG image to completely fill its container. Call this when the view
/// actually changes sizes (e.g. on a window resize/device orientation change).
/// See Blockly.resizeSvgContents to resize the workspace when the contents
/// change (e.g. when a block is added or removed).
/// Record the height/width of the SVG image.
/// </summary>
/// <param name="workspace">Any workspace in the SVG.</param>
public static void svgResize(WorkspaceSvg workspace)
{
var mainWorkspace = workspace;
while (mainWorkspace.options.parentWorkspace != null)
{
mainWorkspace = (WorkspaceSvg)mainWorkspace.options.parentWorkspace;
}
var svg = mainWorkspace.getParentSvg();
var div = (HTMLDivElement)svg.ParentNode;
if (div == null)
{
// Workspace deleted, or something.
return;
}
var width = div.OffsetWidth;
var height = div.OffsetHeight;
if ((double?)svg["cachedWidth_"] != width)
{
svg.SetAttribute("width", width + "px");
svg["cachedWidth_"] = width;
}
if ((double?)svg["cachedHeight_"] != height)
{
svg.SetAttribute("height", height + "px");
svg["cachedHeight_"] = height;
}
mainWorkspace.resize();
}
/// <summary>
/// Return the absolute coordinates of the top-left corner of this element,
/// scales that after canvas SVG element, if it's a descendant.
/// The origin (0,0) is the top-left corner of the Blockly SVG.
/// </summary>
/// <param name="element">Element to find the coordinates of.</param>
/// <param name="workspace">Element must be in this workspace.</param>
/// <returns>Object with .x and .y properties.</returns>
internal static goog.math.Coordinate getSvgXY_(SVGElement element,
WorkspaceSvg workspace)
{
var x = 0.0;
var y = 0.0;
var scale = 1.0;
if (goog.dom.contains(workspace.getCanvas(), element) ||
goog.dom.contains(workspace.getBubbleCanvas(), element))
{
// Before the SVG canvas, scale the coordinates.
scale = workspace.scale;
}
do
{
// Loop through this block and every parent.
var xy = Core.getRelativeXY_(element);
if (element == workspace.getCanvas() ||
element == workspace.getBubbleCanvas())
{
// After the SVG canvas, don't scale the coordinates.
scale = 1;
}
x += xy.x * scale;
y += xy.y * scale;
element = element.ParentNode as SVGElement;
} while (element != null && element != workspace.getParentSvg());
return(new goog.math.Coordinate(x, y));
}
/// <summary>
/// Initialize Blockly with various handlers.
/// </summary>
/// <param name="mainWorkspace">Newly created main workspace.</param>
private static void init_(WorkspaceSvg mainWorkspace)
{
var options = mainWorkspace.options;
var svg = mainWorkspace.getParentSvg();
// Supress the browser's context menu.
Core.bindEventWithChecks_(svg, "contextmenu", null,
new Action <Event>((e) => {
if (!Core.isTargetInput_(e))
{
e.PreventDefault();
}
}));
var workspaceResizeHandler = Core.bindEventWithChecks_(new Node(Window.Instance.instance), "resize",
null,
new Action <Event>((e) => {
Core.hideChaff(true);
Core.svgResize(mainWorkspace);
}));
mainWorkspace.setResizeHandlerWrapper(workspaceResizeHandler);
Core.inject_bindDocumentEvents_();
if (options.languageTree != null)
{
if (mainWorkspace.toolbox_ != null)
{
mainWorkspace.toolbox_.init(/*mainWorkspace*/);
}
else if (mainWorkspace.flyout_ != null)
{
// Build a fixed flyout with the root blocks.
mainWorkspace.flyout_.init(mainWorkspace);
mainWorkspace.flyout_.show(options.languageTree.ChildNodes);
mainWorkspace.flyout_.scrollToStart();
// Translate the workspace sideways to avoid the fixed flyout.
mainWorkspace.scrollX = mainWorkspace.flyout_.width_;
if (options.toolboxPosition == Core.TOOLBOX_AT_RIGHT)
{
mainWorkspace.scrollX *= -1;
}
mainWorkspace.translate(mainWorkspace.scrollX, 0);
}
}
if (options.hasScrollbars)
{
mainWorkspace.scrollbar = new ScrollbarPair(mainWorkspace);
mainWorkspace.scrollbar.resize();
}
// Load the sounds.
if (options.hasSounds)
{
Core.inject_loadSounds_(options.pathToMedia, mainWorkspace);
}
}
