goog.editor.range

Given a range, expand the range to include outer tags if the full contents of those tags are entirely selected. This essentially changes the dom position, but not the visible position of the range. Ex.

• foo

if "foo" is selected, instead of returning start and end nodes as the foo text node, return the li.

Parameters	range (goog.dom.AbstractRange|null) The range. opt_stopNode (Node|null)= Optional node to stop expanding past.
Returns	goog.dom.AbstractRange The expanded range.

Get the deepest point in the DOM that's equivalent to the endpoint of the given range.

Parameters	range (goog.dom.AbstractRange|null) A range. atStart boolean True for the start point, false for the end point.
Returns	goog.editor.range.Point The end point, expressed as a node and an offset.

Returns whether the given range intersects with any instance of the given tag.

Parameters	range (goog.dom.AbstractRange|null) The range to check. tagName goog.dom.TagName The name of the tag.
Returns	boolean Whether the given range intersects with any instance of the given tag.

Checks if a range is completely inside an editable region.

Parameters	range (goog.dom.AbstractRange|null) The range to test.
Returns	boolean Whether the range is completely inside an editable region.

Given a range and an element, create a narrower range that is limited to the boundaries of the element. If the range starts (or ends) outside the element, the narrowed range's start point (or end point) will be the leftmost (or rightmost) leaf of the element.

Parameters	range (goog.dom.AbstractRange|null) The range. el (Element|null) The element to limit the range to.
Returns	(goog.dom.AbstractRange|null) A new narrowed range, or null if the element does not contain any part of the given range.

Given a range in the current DOM, create a factory for a range that represents the same selection in a normalized DOM. The factory function should be invoked after the DOM is normalized.

All browsers do a bad job preserving ranges across DOM normalization. The issue is best described in this 5-year-old bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=191864 For most applications, this isn't a problem. The browsers do a good job handling un-normalized text, so there's usually no reason to normalize.

The exception to this rule is the rich text editing commands execCommand and queryCommandValue, which will fail often if there are un-normalized text nodes.

The factory function creates new ranges so that we can normalize the DOM without problems. It must be created before any normalization happens, and invoked after normalization happens.

Parameters	range (goog.dom.AbstractRange|null) The range to normalize. It may become invalid after body.normalize() is called.
Returns	function(): (goog.dom.AbstractRange|null) A factory for a normalized range. Should be called after body.normalize() is called.

Normalizes the given node.

Parameters	node (Node|null) The node to normalize.

Position the cursor immediately to the left or right of "node". In Firefox, the selection parent is outside of "node", so the cursor can effectively be moved to the end of a link node, without being considered inside of it. Note: This does not always work in WebKit. In particular, if you try to place a cursor to the right of a link, typing still puts you in the link. Bug: http://bugs.webkit.org/show_bug.cgi?id=17697

Parameters	node (Node|null) The node to position the cursor relative to. toLeft boolean True to place it to the left, false to the right.
Returns	goog.dom.AbstractRange The newly selected range.

Normalizes the node, preserving a range of the document.

May also normalize things outside the node, if it is more efficient to do so.

Parameters	node (Node|null) The node to normalize. range (goog.dom.AbstractRange|null) The range to normalize.
Returns	(goog.dom.AbstractRange|null) The range, adjusted for normalization.

Saves the range by inserting carets into the HTML.

Unlike the regular saveUsingCarets, this SavedRange normalizes text nodes. Browsers have other bugs where they don't handle split text nodes in contentEditable regions right.

Parameters	range (goog.dom.AbstractRange|null) The abstract range object.
Returns	goog.dom.SavedCaretRange A saved caret range that normalizes text nodes.

Cause the window's selection to be the start of this node.

Parameters	node (Node|null) The node to select the start of.

Normalizes the node, preserving the selection of the document.

May also normalize things outside the node, if it is more efficient to do so.

Parameters	node (Node|null) The node to normalize.